GB 50278-1998 Specification for construction and acceptance of lifting equipment installation projects

This specification is applicable to the installation of electric hoist hand (electric) moving beam crane hand (electric) moving beam suspension crane general bridge crane, metallurgical crane, general gantry crane and loading and unloading bridge, wall crane and column cantilever crane. GB 50278-1998 Construction and acceptance specification for lifting equipment installation engineering GB50278-1998 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Code for construction and acceptance of cranes installation engineering
and acceptance code
Editor: former Ministry of Machinery Industry of the People's Republic of ChinaApproval department: Ministry of Construction of the People's Republic of ChinaImplementation period: December 1, 1998
Notice on the release of ten national standards including "General Code for Construction and Acceptance of Mechanical Equipment Installation Engineering"Construction Standard No. 19989
According to the requirements of the State Planning Commission's Document No. 26.30 [1986] and Document No. 12390 of the State Planning Commission, the former Ministry of Machinery Industry and relevant departments jointly formulated the following standards such as "General Code for Construction and Acceptance of Mechanical Equipment Installation Engineering", which have been jointly formulated by relevant departments. The following standards are now approved as mandatory national standards and will be implemented from January 1, 1999. The original national standards "Mechanical Equipment Installation Process Construction and Acceptance Specification" TI231 and "Refrigeration Equipment Installation Process Construction and Acceptance Specification GHI6-84" are abolished. At the same time, the General Specification for Construction and Acceptance of Mechanical Equipment Installation Project GR50231-98 "Continuous Conveying Equipment Installation Project Construction and Acceptance Specification" GB50270-S "Metal Sliding Machine Installation Project Construction and Acceptance Specification" G35027198 "Forging Equipment Installation Process Construction and Acceptance Specification" GBS027298 "Industrial Boiler Installation Project Construction and Acceptance Specification" GB50273-98 "Refrigeration Equipment, Air Separation Equipment Installation Project Construction and Acceptance Specification" GB50274-98 "Compressor, Fan, Pump Installation Project Construction and Acceptance Specification" R50275-98 "Compactor, Fan, Pump Installation Project Construction and Acceptance Specification" are broken. "Specifications for Construction and Acceptance of Installation Engineering of Powder Equipment" GB50276-98
"Specifications for Construction and Acceptance of Installation Engineering of Casting Equipment" GB5027J98
"Specifications for Construction and Acceptance of Installation Engineering of Lifting Equipment" GB5027898
The above specifications are funded and managed by the State Machinery Industry Bureau, and the specific interpretation and other work are undertaken by the Engineering Standard and Quota Station of the Ministry of Machinery Industry, and the publication and issuance are organized by the Shanxi Construction Standard and Quota Research Institute.
Ministry of Construction of the People's Republic of China
August 27, 1988
Revision Notes
This specification is based on the requirements of the State Planning Commission's Document No. 450 (1986), and is edited by the former Ministry of Machinery Industry. The revision work is organized by the Installation Engineering Standard and Quota Station of the Ministry of Machinery Industry, and is jointly planned by the Beijing Hoisting and Transportation Machinery Research Institute of the Ministry of Machinery Industry, the Mechanization Construction Company of China Machinery Installation Corporation, and key manufacturers and users of lifting equipment.
During the revision process, the revision team carefully summarized the experience since the implementation of the original specification; fully understood the standardization and scientific research achievements of my country's lifting equipment manufacturing industry; and absorbed new technologies, new materials and new processes in the installation process of lifting equipment. Strictly follow the procedures, steps and requirements of the Ministry of Construction to set standards and specifications, and finally the relevant departments of the original Ministry of Machinery Industry will review and approve this specification, which is divided into twelve chapters and four appendices. The main contents of the revision are as follows:
1. According to the development of my country's lifting equipment manufacturing industry, the scope of application of various types of lifting equipment installation specifications has been revised, and some new lifting equipment has been added:
2. The original specification was formulated in 1970. Due to the limitation of visual conditions, the standardization is still very imperfect: Now the manufacturing standards of lifting equipment are mostly equivalent to international standards and foreign advanced technologies. Therefore, the inspection items, technical requirements and parameters of the lifting equipment installation specifications have been greatly changed, such as the trial operation of lifting equipment.
3. The geometrical degree of the lifting equipment installation project that needs to be inspected or re-inspected has fully considered the situation of the lifting equipment leaving the factory, the deformation factors that may be caused by transportation and maintenance, and has been determined through research, investigation and joint review by relevant parties. Therefore, the inspection items have changed greatly.
4. The installation process of the lifting equipment is from the unpacking of the equipment to the acceptance of the qualified test operation. The test operation of the installation project clearly includes no-load, static load test and dynamic load test. Through these tests, it is required to measure the span, arch, arm deflection and static stiffness of the lifting equipment. These tests and measurements are very important parameters for the normal and safe operation of the lifting equipment; otherwise, personal or equipment accidents are prone to occur.
5. Added necessary annexes such as the geometric accuracy detection method of the lifting equipment, the correction value of the measuring tool, etc. G, nomenclature, terminology, shape and position tolerance, and calculation unit are all in accordance with the current domestic standards and relevant concepts of the lifting equipment manufacturing industry, and have been greatly adjusted.
During the implementation of this specification, if any modification or supplement is found, please send your opinions and relevant information to the Management Group of the Installation Engineering Standard and Quota Station of the Ministry of Machinery Industry (Address: 277 Tufujing Street, Beijing, Postal Code: 100740) for reference in future revisions. Former Ministry of Machinery Industry
August 1998
First General Provisions
Article 1.0.1 This specification is formulated to ensure the quality of the installation engineering of lifting equipment and promote the advancement of installation technology. Article 1.2 This specification applies to the installation of (electric) powered cranes, manual (electric) powered hot-hook cranes, bridge cranes, metallurgical cranes, general gantry cranes and loading and unloading bridges, wall cranes and column-type cantilever cranes.
Article 1.0.3 The installation of lifting equipment shall be completed from the equipment box to the equipment test and acceptance. Article 1.0.4 For the lifting of large, special and complex lifting equipment, a complete lifting plan shall be formulated. When the building structure columns and beams are used as important load-bearing points, the lifting shall be carried out after calculation and approval by the relevant departments. Article 1.0.5 After the installation of lifting equipment is completed, it must pass the load test and acceptance procedures before it can be put into production.
Article 1.0.6
The construction and acceptance of lifting equipment installation projects
In addition to being carried out in accordance with the provisions of this specification, it shall also comply with the provisions of the current relevant national standards and specifications.
Chapter 2 General Provisions
Article 2.0.1 Before installing the lifting equipment, it should be checked according to the following requirements:
, the equipment technical documents should be complete;
, check the model, specification and quantity of the equipment, materials and accessories according to the packing list, which should comply with the requirements of the design and equipment technical documents, and should have a product! Certificate of conformity and necessary factory test records:
3. Mechanical and electrical equipment should be free from deformation, damage and rust, and the steel wire rope should not be rusted, damaged, bent, looped, kinked, cracked or loose:
4. The coordinates, elevation, span and surface flatness of the crane ground foundation, crane beam and embedded parts should meet the requirements of design and installation;
The minimum safety distance between general bridge cranes, overhead cranes, metallurgical cranes and buildings should comply with the provisions of Table 2.01.1:
When assembling the coupling on site, its end face
Article 2.0, 2
the clearance, radial displacement and axial inclination should comply with the provisions of the equipment technical documents. When there is no stipulation in the equipment technical documents, the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Engineering" 366 shall apply: Crane Minimum safety distance between crane and building Minimum distance between crane and building (nim) Minimum distance between crane and building (nm) Light rated lifting capacity of crane (t) 25 25 - 125 125 -230 50 90- 125125 ~·250 Bridge type fun
Wall lifting
Article 2.0.3 The adjustment of the brake shall meet the following requirements: 1. The brake shall be flexible and the braking shall be smooth and reliable; 2. The braking load of the lifting mechanism shall be 1.25 times of the rated load, and 1.4 times if there are special requirements, and there shall be no slipping under static load:
2. The brake of the operating mechanism shall not be adjusted too loose or too tight, so as not to cause the phenomenon of cow dropping and impact. Article 2.0.4 When the general bridge and gantry crane is unloaded When the maximum distance between the trolley wheel surface and the track surface is not greater than 167 times the trolley base gauge or trolley track gauge for electric vehicles, it should be greater than 0.025 times the trolley wheel base gauge or trolley track gauge for dynamic vehicles (Figure 2.0.4)
Figure 2.4 Clearance between the trolley wheel and the track surface of a general bridge crane
\ Trolley base gauge: K-trolley track gauge;
The clearance between the wheel surface and the track surface Chapter 3 Crane Tracks and Carriages
Chapter 3.0.1. This chapter applies to the installation of light rail, heavy rail, I-shaped copper rail, sheet rail and crane rail. 3.0.2. Before laying the rail, the end face, straightness and twisting of the rail shall be checked, and it can be installed only after passing the inspection. 3.8.3. Before installing the rail, the installation reference line of the rail shall be determined; the installation reference line of the rail should be the positioning axis of the crane beam. 3.0.4. The position deviation of the actual center of the track to the actual center line of the crane beam shall not be greater than 10mm; and shall not be greater than half of the thickness of the crane frame plate (Figure 3.0.4) 2.0.5. The horizontal deviation of the actual center line of the track to the actual center line of the crane beam is 3.0.6. The horizontal deviation of the actual center line of the track to the installation reference line is 3.0.7. For general bridge cranes, general gantry cranes and loading and unloading bridges, the allowable deviation of the crane track span should be greater than 5mm; for beam-type cranes, the allowable deviation of the crane track span should meet the following requirements: Article 3.0.6: When the crane track span is less than or equal to 10m, the allowable deviation of the crane track span is 3um; when the crane track span is greater than 10m, the allowable deviation of the crane track span should be calculated according to the following formula, but the maximum should not exceed +15um
25 - + [3 + 0.25(S - 10)?
Where 4
is the allowable deviation of the crane span (mm);
is the crane track span (m).
Article 3.0.7 The longitudinal inclination of the track surface to its design position shall not be greater than 1/10Kh for general bridge cranes; and shall not be greater than 3/1000 for general gantry cranes; for every 2m measuring point, the height difference within the travel shall not be greater than 1[yuan.] Article 3.0.8 The allowable deviation of the elevation of the reference point of the track surface relative to the design standard shall be ±101tam for through-type cranes, through-gantry cranes and loading and unloading bridges; and Smma for beam-type suspended cranes.
Article 3.0.9 The relative difference in elevation of two parallel tracks within the cross-section shall not be greater than 10mm for general bridge cranes, general gantry cranes and loading and unloading bridges; and shall not be greater than 5nm for hanging cranes.
Article 3.0.10 For cranes guided by horizontal guide wheels, the lateral curvature of the track in the length direction in the horizontal plane shall have an allowable deviation of +1mm for every 2m of measuring length (Figure 3.0.10); 20
Figure 3,0, 1) Curvature of track in the horizontal plane Article 3.0.11 The intersection of two rows of tracks should be staggered, and the staggered distance should not be equal to the base distance of the front and rear wheels of the crane Article 3.0.12 The track joints shall meet the following requirements: 1. When the joints are butt-jointed, the welding frame shall meet the requirements of the rail base material. The welding quality shall comply with the relevant provisions of electric fusion welding, and the top and side welds of the joints shall be polished and smooth; 2. When the joints are connected by color plate, the height difference and lateral misalignment of the joints shall not be greater than 1inm, and the gap shall not be greater than 2uun:
: The span of the contraction joint shall comply with the design requirements, and its allowable deviation
4. For square steel rails supported by pads, the width of the pads at the joints (along the length of the rail) shall be doubled than that at other places. Article 3.0.13 The allowable deviation of the gauge of the two sub-rails of the same branch of the universal hoist and loading and unloading bridge shall be 2mmrn, and the height difference of the benchmark shall not be greater than 1ni.
Article 3.0, 14 The grouting layer or leveling layer between the concrete crane beam and the track shall comply with the design requirements. Article 3.0.15 When using a single-sex pad as a cushioning layer, the specifications and materials of the elastic cushion should comply with the design requirements. Before tightening the screws, the rail should be in close contact with the elastic cushion; when there is a gap, a cushion should be added under the elastic cushion, and the length and width of the cushion should be 10-20mm larger than the elastic cushion. Article 3.0.16 When laying rails on crane beams, the bottom surface of the rail should be in close contact with the top surface of the crane frame; when there is a gap and its length exceeds 200mm, a cushion should be added, and the length of the cushion should not be less than 100mm, and the width should be greater than 10~20m from the bottom surface of the track. Each set of cushions should not exceed 3 layers. After padding, the finished product is welded for a certain period of time. Article 3.0.17 The lateral inclination of square steel and I-shaped copper rails should not be greater than 1/100 of the track angle.
Article 3.0.18 After the track is adjusted to meet the requirements, all screws should be fully checked and there should be no looseness. Article 3.0, 19 The car stops on the track should be installed before the hoisting crane. The car stops and crane buffers on the two tracks at the same span end should be connected:
Chapter 4 Electric reed
The clearance between the inner side of the wheel rim of the electric reed and the I-beam
Article 4.0.1
The clearance between the track flange (Figure 4.0.1) should be 3--5mm Figure 4.0.1 The clearance between the inner side of the wheel rim and the track flange 1 T-beam track: 2-wheel
The clearance between the inner side of the wheel rim and the I-beam track flange 4.0.2 The sprocket of the chain electric reed should be kept in the vertical plane. The chain should not be twisted, stuck or severely worn during operation.
Article 4.0.3 During the no-load test, the braking distance of the electric hoist trolley shall meet the following requirements.
1. Electric hoists for lifting general items:
(4.0.3-1)
2. Electric hoists for lifting dangerous goods such as liquid gold, si = ke
Where Sr
- braking distance of trolley (m);
(4.0.3-2)
trolley running speed (m/min)
K,——coefficient, preferably 28 (HI~ 3900; Kz—number, preferably 700~1400.
Article 4.0.4 When the electric crane is undergoing rated load test, the sliding distance within the braking time shall be calculated as follows: V
Sliding distance (m);
Wherein s
Lifting speed (m/min)
Manual beam crane and manual
Moving beam suspension crane
Article 5.0.1
Before installation, the manual single-beam crane shall be installed according to Table 5.0.1. The provisions of the review.
Name and code
Crane span
Relative span of crane
Relative difference of span of crane
Use line L1
L, relative difference
Periodic variation of manual single-beam crane
Allowable deviation
Note: ① Both spans of crane are measured in vain, and the maximum span meets the requirements of this specification. |tt||When there are special requirements. The relative difference of the crane span should be checked: the maximum value of the main beam camber should be within the range of 5/1m in the middle of the main beam, and the measurement method should comply with the requirements of Appendix 1 of this specification! @Upper beam = 100
For dynamic beam cranes, before hoisting,
Article 5.2
Recheck according to the current provisions of Table 5.0.2.
Manual double flexible Recheck of the straightening machine
Name and code
(mreti
Relative difference
Main upper arch seat F
Relative difference of diagonals L1, L7
Trolley boot K
Trolley thermal distance K, K2
Relative difference
Note: ({The crane should be measured on both sides, and the measurement method should comply with the requirements of Appendix 1 of the specification;
②The maximum value of the main channel upper arch should be within the range of S/10 in the middle of the main beam. The measurement method should comply with the requirements of Appendix 2 of this specification, the main frame upper arch F.
@When there are special requirements, the diagonal extension difference should be checked. Article 5.0.3 Before hoisting, the manual single-beam induction crane should be measured according to Table 5.0.3 The provisions of the manual single-beam suspension crane are reviewed. The review of the manual single-beam suspension crane is carried out according to the provisions of the regulations. The review of the manual single-beam suspension crane is carried out according to the provisions of the regulations. The name and code of the manual single-beam suspension crane is the span of the manual single-beam suspension crane. The relative prohibition of the span of the manual single-beam suspension crane is 51.5. The relative prohibition of the span of the manual single-beam suspension crane is 51.5. The relative prohibition of the span of the manual single-beam suspension crane is 51.5. The relative difference ...1.
Review of electric single-beam crane
Name and code
Main beam camber
Name and code
Liu Jiaozhan [Note<3-
Relative arch
Main beam lateral bend
Note: Both sides of the crane span should be measured, and the measurement method should meet the requirements of Appendix 6 of this specification.
The maximum value of the main beam camber should be within the range of S/10 in the middle of the main beam. The measurement method should meet the requirements of Appendix 7 of this specification. The camber of the main beam F-
When the main case is installed on site, the camber of the main beam should be checked. Article 6.0.2 Before hoisting, the electric hoist double-beam crane should be checked according to the provisions of Table 6.0.2. Calculation of electric double-beam lifting machine
Name and code
Lifting machine span
Crane span
Difference of the main beam camber
Difference of the diagonal LI
F-, - 1-2
Wheel water half of the truck
S≤.19.5mz
Name and code
Earth side, etc.?
Auxiliary trolley
Highway
Note: All spans should be measured, and the measurement method should comply with the requirements of Appendix 1 of this specification;
The maximum camber of the main beam should be within the S/1U port of the main beam, and the measurement method should comply with the requirements of Appendix 2 of this specification. Camber of the upper beam:
When there are special requirements, check the relative difference of the diagonal lines, the wheels of the trolley should be skewed, and the inclination direction of the two wheels under the same beam should be opposite:
) When assembling the main beam on site, the main beam side bend should be pulled and should be convex to the two main sides.
Article 6.0.3 Before hoisting, the electric single-shaft crane should be rechecked according to the provisions of Table 6.0.3. After erecting on the track, the gap between the inner steel of the wheel and the flange of the I-beam track (Figure 4.0.1) should be 3~Smna
Review of electric single-channel suspension crane
Name and code
Main beam
Over-ton crane
Connecting plate
Spacing difference
Main beam
S, $21
Main beam camber F
Main beam camber
Note: ①When assembled on site. The main beam camber should be checked: Figure 1: Camber F=
Seventh general bridge crane
Article 7.0.1 This product is applicable to the installation of general-purpose bridge cranes: other types of analysis cranes and general bridge cranes can also be implemented according to the relevant provisions of the small chapter for the same parts. Article 7.2 When assembling the bridge, the inspection shall be carried out according to the provisions of Table 7.0.2.
Inspection of assembly and disassembly
Name and code
Main beam upper row F
Main rail box
Relative arch of diagonal
I,- L!
Deviated track box
Single straightening
K Deviation track box shape,
Single spleen board beam
Middle tumor track box shape
Action, frame
Stop span shape
Deviated I pin
Shape inspection,
Single modification
Life: (0 The maximum arch of the main beam should be within the range of S/10 in the middle of the main beam. The measurement method should comply with the requirements of Appendix 2 of this specification. The narrowness of the main beam r mia
Read when assembling the new beam on site, the degree of inspection should be the difference between the main beam and the main beam. The side of the main beam should be convex to the outside, and the measurement should be made on the membrane plate 1Uk)mm away from the upper plate. 5 is the distance between the first rib plates. Article 1.1.3 When assembling the trolley running mechanism, the inspection shall be carried out in accordance with the provisions of Table 7.11.3.
Inspection of trolley running mechanism
Name change
Remember
At, - Mg.IN0e
The same end beam
The same position difference of the trolley wheels under the same end beam
Method: The relative difference of the height of the trolley wheels under the same end beam shall be checked. The measurement method shall meet the requirements of this specification;
When assembling on site, the relative difference of the height of the crane shall be checked. When four or more wheels are assembled on site, the same position difference measurement method of the trolley wheels under the same end beam shall be checked. The relative difference of the height ... It should comply with the provisions of the equipment technical document.
Chapter 8 Metallurgical Cranes
Article 8.0.1 Applicable to the installation of metallurgical bridge loading cranes, casting cranes, clamp cranes, lid cranes, lifting cranes, rigid material cranes, plate handling cranes, hanging clamp cranes and general cranes. Article 8.0.2 When installing metallurgical bridge cranes, the provisions of Chapter 7 of this Code shall be followed: the bridge and trolley running mechanism of metallurgical cranes with guide wheels shall comply with the provisions of 8.0.2.
Inspection of the bridge and running mechanism of metallurgical cranes with guide wheels
Name and code
Related to
Lifting!
Horizontal guide
Commercial guide
The same as the lake dyeing
The connection between the centers of the two horizontal guide wheels and the track center line
The center line of Xinpu
Li Xiangyan
The center or linear line
Note: ①The height of the crane should be measured on both sides, and the auxiliary force method should comply with the requirements of Appendix 1 of this specification; ②For the trolley travel mechanism with horizontal guide wheels, the coincidence of the line connecting the centers of the two sets of horizontal guide wheels and the track center line should be checked.
Article 8.0.3 The installation of a bridge loading crane shall meet the following requirements:
When the guide frame is connected to the trolley frame, the verticality of the guide frame center line to the trolley wheel support surface (Figure 8.0.3) shall not be greater than 1/2000 of the total length of the guide frame:
:, the coaxiality of the positive and lower support holes in the center of the guide frame shall not be 371
Figure 8.0.3 Verticality of the guide frame center line to the trolley wheel
Bearing seat support surface
1 Guide frame: 2 Trolley card wheel bearing seat support surface: 3 Universal coupling; 4-Guide frame center line is greater than 0.5trll, F. The verticality of the axis of the lower support hole is not greater than 0.5/1000;
2. The gap between the guide plate and the column of the upper and lower supports is 11.5m on each side
4. The parallelism deviation of the two guides on the frame should not be greater than 3mm in the whole length;
1. After the universal joint of the slewing mechanism is installed, the dimensional deviation of its 1st and 2nd position should not be greater than 4mm
6. The gap between the anti-overturning safety roller on the main beam and the lower flange plate of the main beam should be 3-5mm;7. Adjust the elasticity of the hydraulic pusher in the locking mechanism of the material rod, and it should be properly locked. It can be brought with you!
Article 8.0.4 When installing a casting crane, the following requirements shall be met:
1. After the installation of the casting crane, the limiter on it can move accurately;
1. The horizontal deviation of the balance bar of the upper pulley group should not be greater than 40mm in the whole length;
3. After assembling the two main lifting cylinders, the axial displacement shall not be greater than 3mm:
4. The steel wire is fixed on the cylinder and wound correctly. After passing through each pulley, the horizontality of the hook beam should not be greater than 2/1000; 5. The double brake of the lifting mechanism is correctly adjusted; 6. The heat insulation board under the hook frame, main beam and machine room should be installed correctly:
7. The cooling device of the driver's room and the ventilation device between the electrical equipment should be intact:
The installation of personnel, electronic weighing weight, lifting weight display body and lifting limiter should meet the design requirements. Article 8.0.5 When installing the ingot crane, the following requirements shall be met:
, when the guide frame is connected to the trolley frame, the verticality of the guide frame center line to the trolley wheel bearing seat support surface shall not be greater than 17/2000 of the guide frame's commercial length;
, the guide frame center line and the guide rail symmetry center line shall coincide, and the deviation shall not exceed 3n
, the parallelism deviation of the two guide rails shall not exceed 3mn over the entire length;
, when assembling the square shaft and bearing of the ejector mechanism, the distance between the journal and the shaft shall not be less than 5mm on all sides;
, the clearance between the square shaft of the ejector mechanism and the pinion guide plate in the wheel speed reducer shall be 0.4-0.7rum: The clearance between the guide rail of the pliers and the sleeve is 3-5 on each side. Seven, after the wire rope of the small pliers operating mechanism is fixed, the height difference between the two ends of the cross-dye should not be greater than 5mm; The center line of the large needle and the neck rod should be balanced, and the deviation should not be greater than 10mm. Nine, the action of the large pliers and the small needle should be coordinated, and the non-closed scale should comply with the provisions of the equipment technical documents: Ten, the verticality of the guide tube should not be greater than 1/2 (00; the balance weight moves flexibly on the guide column, and there should be no blocking phenomenon; Ten. Indicator in the driver's room The adjustment of the pointer position should be consistent with the actual moving distance of the top machine.
Article 8.0.6 When installing the clamp crane, the following requirements should be met:
1. When the guide frame is connected to the trolley frame, the verticality of the guide frame center line and the bearing surface of the trolley wheel bearing seat should not be greater than 1/2000 of the guide frame height;
2. The guide frame center line and the guide rail symmetry center line should coincide, and the deviation should not exceed 10rrul;
The parallel deviation of the two guide rails should not exceed 3mm in the entire length.
4. The distance between the guide rail and the upper and lower beams, each side The gap between the column and the lower crossbeam guide should be 15mm on each side. The gap between the square shaft and the pinion guide plate should be 0.37~0.7mun on each side. After the wire rope of the main lifting mechanism is fixed, the height difference between the upper and lower ends should not be greater than 5arm. The gap between the anti-touch safety roller of the trolley running machine and the lower wing extension plate of the main beam should not be greater than 10mur. The rotation point and rolling point of the large clamp should be flexible, and the closing chain of the clamp should not be blocked in the clamp frame hole. Article 8.0.7 The installation of the lid crane shall meet the following requirements:
After assembly, the operation of the broken handle, connecting rod and eccentric wheel shall be coordinated: the operation of the lifting clamp or lifting ring shall be further: 1. The movable companion device shall be adjusted to the accurate position so that the lid crane can automatically stop at the center level of any furnace. Article 8.0.8 The installation of the rigid material crane shall meet the following requirements:
, when the guide frame is connected to the trolley frame, the verticality deviation between the center line of the guide frame and the auxiliary friction support of the trolley wheel shall be 1/2000 of the guide frame height;
3. The side clearance between the guide frame and the guide rail shall be 1.4 on both sides. m; pre-clearance is 1.5--3mm;
3. After the wire rope is fixed, the horizontal half of the beam should not be greater than 1/:000:
4. The allowable deviation of the diameter of the circular track of the running trolley is 12mml:
. The parallelism deviation of the upper surface of the circular track to the plane where the wheel shore of the lower trolley is located should not be less than 3mm; 6. The coaxiality of the circular track and the rotating center line of the trolley frame shall not be less than 3um
7. The axial distance between the conductive slip ring and the rotating center line of the trolley case shall not be less than 3m:
8. Trolley operation The side clearance between the horizontal wheel of the machine tree and the track should be small. The side clearance between the water wheel of the slewing mechanism and the circular track should not be greater than 1.51rm; Ten, all the target gear working surfaces should be on the same horizontal plane, and the quotient error should not be greater than 3mm. Article 8.0.9 The installation of the plate handling crane shall meet the following requirements: After the wire rope is fixed, the horizontality of the hanging beam of the plate handling crane should not be greater than 2/1000; First, the rotation points and rolling points of the clamp should be able to avoid interference with each other: t||3. The verticality of the center line of the rigid extension guide column and the reference plane of the trolley frame should not be greater than 1/20HO; 4. The opening and closing dimensions of the clamp should comply with the provisions of the equipment technical documents: the spacing between the two sets of clamps should be easily adjusted within the allowable range of the equipment, and their symmetrical center line should coincide with the center line of the vertical guide column, and the deviation should not exceed 10mm;
5. The height display of the plate thickness or the bad stack should be accurate and clear
After the rotary hanging clamp or electromagnetic crane is assembled
Phase B, 0.10
, it should comply with the equipment technical documents. Provisions; After the wire rope is fixed, the horizontality of the balance beam of its sling should not be greater than 2/10 (H0 Article 8.0.11 The installation and construction of the crane shall meet the following requirements: When assembling the loosening mechanism, the adjusting screws or brakes of the upper pulley group should be adjusted. When the crane exceeds the ID% of the rated load, the brake should be opened:
Third, the hinges of the loosening device should rotate flexibly; the brake wheel used to rotate the tilting mechanism, its sprocket and chain should rotate flexibly
Fourth, after the rated load is hung on the material machine, the buffer spring should not have permanent deformation, and the performance of the tapered friction coupling should be good. Chapter 9
Culvert gantry crane and loading and unloading bridge
Article 9.0,1 This chapter applies to the installation of single-beam and double-beam general-purpose gantry cranes and loading and unloading bridges.
Case 9.0.2 When installing the portal frames of double-beam universal gantry cranes and loading and unloading bridges, the equipment technical documents and the assembly markings shall be followed; the total deviation after assembly shall comply with the provisions of Table 9.0.2.
Double-beam universal gantry cranes and
loading and unloading bridges assembly allowable deviation
Name and code
5t, Relative difference of S2
IS,S,>26m|
Main: arch F
Uppermost arm height F
Diagonal
L,L,is2hm
Relative difference
IL,-L>26m
Regular rail box frame
Eccentric box frame
Frame dry,
Single web frame
Table 9.0.2
Each name code
Same-Transverse plane small
Height difference
Regular rail frame,
Folding frame
Note: Both the starting or the machine height are measured, and the measurement method shall meet the requirements of the scope of the scope of the measurement.-t The maximum value of the main dyeing speed is located in the middle 5/10 of the main dyeing speed. The measurement method shall comply with the requirements of Appendix 1 of this specification. The measurement method of the main upper low F=
shall comply with the requirements of the current standard catalogue 2. The total upper depth -
0 When the analysis frame is installed on site, the relative difference of the diagonal line shall be checked: ?1. The depth of the dyeing is curved outward, and the section should be measured at the section of the upper flange plate away from IIKkanm. The allowable deviation of the single main gantry crane and the loading and unloading bridge gantry is the relative deviation of the non-aggregate upper depth F
and the old name and code
Design: both the machine start and the training body's degree are measured at the bottom, and the method of stopping the alcohol consumption shall comply with the requirements of this standard.
+The maximum value of health should be 5/0 in the world. The method of internal position shall comply with the requirements of Appendix 2 of this standard; L is the natural condition, the body temperature F, the crown and kidney P number 3, the beam sequence degree is measured in the west direction, and the point is at the front of the flange 10omm to observe the situation.
Clause 9.6.3 When installing the gantry of a single-beam gantry crane and a loading and unloading bridge trolley, the installation shall be carried out in accordance with the provisions of the technical documents of the equipment and the factory assembly marks; when there are no provisions, after installation, the deviation shall comply with the provisions of Article 9.0.3.
Assembly allowable deviation of gantry cranes and loading and unloading bridge trolleys for single main beams
Name and code
The center of the wheel
Horizontal guide wheel
Axis of the main wheel
Center distance L
L Symmetry7mun
Seventh, after the wire rope of the main lifting mechanism is fixed, the height difference between the two ends of the upper cover should not be greater than 5arm;
Eighth, the gap between the anti-touch safety roller of the trolley running machine and the lower wing extension plate of the main beam should not be greater than 10murNinth, the rotation point and rolling point of the large clamp should be flexible, and the closing chain of the clamp should not be blocked in the clamp frame hole. Article 8.0.7 The installation of the lid crane shall meet the following requirements:
After assembly, the operation of the handle, connecting rod and eccentric wheel should be coordinated: the operation of the lifting clamp or lifting ring should be further:, the dynamic companion car component is adjusted to the accurate positioning, so that the lid crane can automatically stop at the center level of any furnace. Article 8.0.8 The installation of the rigid material crane shall meet the following requirements:
, when the guide is connected to the trolley frame, the center line of the guide frame is aligned with the trolley frame. The verticality deviation between the auxiliary bearings of the wheels should be 1/2000 of the guide frame height;
3. The side clearance between the guide frame and the guide rail should be 1.4m on both sides; the pre-clearance is 1.5--3mm;
3. After the wire rope is fixed, the water depth of the crossbeam should not be greater than 1/:000:
4. The allowable deviation of the diameter of the track of the running trolley is 12mml:
. The parallelism deviation of the upper surface of the circular track to the plane where the wheel surface of the lower trolley is located shall not be less than 3mm; 6. The coaxiality of the circular track and the rotating center line of the trolley frame shall not exceed 3um. 7. The axial distance between the conductive slip ring and the rotating center line of the trolley case shall not be less than 3m. 8. The side clearance between the horizontal wheel of the trolley running machine and the track shall be small. The side clearance between the water wheel of the slewing mechanism and the circular track shall not be greater than 1.51rm. 10. All the gear working surfaces shall be in the same horizontal plane. On the surface, the commercial deviation should not be greater than 3mm
Article 8.0.9 The installation of the board handling crane shall meet the following requirements:
, after the wire rope is fixed, the horizontality of the hanging clamp beam of the board handling crane should not be greater than 2/1000;
1. The movements of the rotation points and rolling points of the clamp should be non-interfering with each other:
3. The verticality of the center line of the rigid extension guide column and the reference plane of the trolley frame should not be greater than 1/20HO; 4. The opening and closing dimensions of the clamp should comply with the equipment holding technology The provisions of the document: The distance between the two sets of wax clamps should be easily adjusted within the allowable range of the equipment, and the symmetrical center line should coincide with the center line of the vertical guide column, and the deviation should not exceed 10mm;
5. The height display of the plate thickness or the stack height should be accurate and clear
After the rotary hanging clamp or electromagnetic crane is assembled
Article B,0.10
, it should comply with the provisions of the equipment technical document; after the wire rope is fixed, the horizontality of the balance beam of the hoist should not exceed 2/10 (H0 Article 8.0.11 Installation of the crane The machine should meet the following requirements: When assembling the loosening mechanism, the adjusting screw or brake of the upper pulley block should be adjusted. When the crane exceeds the ID% of the rated load, the brake should be opened:
3. The joints of the loosening device should rotate flexibly; the sprocket and chain of the brake wheel used to rotate the turning mechanism should rotate flexibly
4. After the material machine is hung with the rated load, the buffer spring should not be permanently deformed, and the performance of the conical friction coupling should be good. Chapter 9
Culvert gantry crane and loading and unloading bridge
Section 9.0, 1 This chapter applies to the installation of single-beam and double-beam universal gantry cranes and loading bridges. Www.bzxZ.net
Chapter 9.0.2 When installing the gantry of a double-beam universal gantry crane and loading bridge, it shall be carried out in accordance with the equipment technical documents and the assembly markings; the total deviation after assembly shall comply with the provisions of Table 9.0.2.
Double-beam universal gantry crane and
loading bridge assembly allowable deviation
Name and code
5t, Relative difference of S2
IS,S,>26m|
Main: arch F
Uppermost arm height F
Diagonal
L,L,is2hm
Relative difference
IL,-L>26m
Regular rail box frame
Eccentric box frame
Frame dry,
Single web frame
Table 9.0.2
Each name code
Same-Transverse plane small
Height difference
Regular rail frame,
Folding frame
Note: Both the starting or the machine height are measured, and the measurement method shall meet the requirements of the scope of the scope of the measurement.-t The maximum value of the main dyeing speed is located in the middle 5/10 of the main dyeing speed. The measurement method shall comply with the requirements of Appendix 1 of this specification. The measurement method of the main upper low F=
shall comply with the requirements of the current standard catalogue 2. The total upper depth -
0 When the analysis frame is installed on site, the relative difference of the diagonal line shall be checked: ?1. The depth of the dyeing is curved outward, and the section should be measured at the section of the upper flange plate away from IIKkanm. The allowable deviation of the single main gantry crane and the loading and unloading bridge gantry is the relative deviation of the non-aggregate upper depth F
and the old name and code
Design: both the machine start and the training body's degree are measured at the bottom, and the method of stopping the alcohol consumption shall comply with the requirements of this standard.
+The maximum value of health should be 5/0 in the world. The method of internal position shall comply with the requirements of Appendix 2 of this standard; L is the natural condition, the body temperature F, the crown and kidney P number 3, the beam sequence degree is measured in the west direction, and the point is at the front of the flange 10omm to observe the situation.
Clause 9.6.3 When installing the gantry of a single-beam gantry crane and a loading and unloading bridge trolley, the installation shall be carried out in accordance with the provisions of the technical documents of the equipment and the factory assembly marks; when there are no provisions, after installation, the deviation shall comply with the provisions of Article 9.0.3.
Assembly allowable deviation of gantry cranes and loading and unloading bridge trolleys for single main beams
Name and code
The center of the wheel
Horizontal guide wheel
Axis of the main wheel
Center distance L
L Symmetry7mun
Seventh, after the wire rope of the main lifting mechanism is fixed, the height difference between the two ends of the upper cover should not be greater than 5arm;
Eighth, the gap between the anti-touch safety roller of the trolley running machine and the lower wing extension plate of the main beam should not be greater than 10murNinth, the rotation point and rolling point of the large clamp should be flexible, and the closing chain of the clamp should not be blocked in the clamp frame hole. Article 8.0.7 The installation of the lid crane shall meet the following requirements:
After assembly, the operation of the handle, connecting rod and eccentric wheel should be coordinated: the operation of the lifting clamp or lifting ring should be further:, the dynamic companion car component is adjusted to the accurate positioning, so that the lid crane can automatically stop at the center level of any furnace. Article 8.0.8 The installation of the rigid material crane shall meet the following requirements:
, when the guide is connected to the trolley frame, the center line of the guide frame is aligned with the trolley frame. The verticality deviation between the auxiliary bearings of the wheels should be 1/2000 of the guide frame height;
3. The side clearance between the guide frame and the guide rail should be 1.4m on both sides; the pre-clearance is 1.5--3mm;
3. After the wire rope is fixed, the water depth of the crossbeam should not be greater than 1/:000:
4. The allowable deviation of the diameter of the track of the running trolley is 12mml:
. The parallelism deviation of the upper surface of the circular track to the plane where the wheel surface of the lower trolley is located shall not be less than 3mm; 6. The coaxiality of the circular track and the rotating center line of the trolley frame shall not exceed 3um. 7. The axial distance between the conductive slip ring and the rotating center line of the trolley case shall not be less than 3m. 8. The side clearance between the horizontal wheel of the trolley running machine and the track shall be small. The side clearance between the water wheel of the slewing mechanism and the circular track shall not be greater than 1.51rm. 10. All the gear working surfaces shall be in the same horizontal plane. On the surface, the commercial deviation should not be greater than 3mm
Article 8.0.9 The installation of the board handling crane shall meet the following requirements:
, after the wire rope is fixed, the horizontality of the hanging clamp beam of the board handling crane should not be greater than 2/1000;
1. The movements of the rotation points and rolling points of the clamp should be non-interfering with each other:
3. The verticality of the center line of the rigid extension guide column and the reference plane of the trolley frame should not be greater than 1/20HO; 4. The opening and closing dimensions of the clamp should comply with the equipment holding technology The provisions of the document: The distance between the two sets of wax clamps should be easily adjusted within the allowable range of the equipment, and the symmetrical center line should coincide with the center line of the vertical guide column, and the deviation should not exceed 10mm;
5. The height display of the plate thickness or the stack height should be accurate and clear
After the rotary hanging clamp or electromagnetic crane is assembled
Article B,0.10
, it should comply with the provisions of the equipment technical document; after the wire rope is fixed, the horizontality of the balance beam of the hoist should not exceed 2/10 (H0 Article 8.0.11 Installation of the crane The machine should meet the following requirements: When assembling the loosening mechanism, the adjusting screw or brake of the upper pulley block should be adjusted. When the crane exceeds the ID% of the rated load, the brake should be opened:
3. The joints of the loosening device should rotate flexibly; the sprocket and chain of the brake wheel used to rotate the turning mechanism should rotate flexibly
4. After the material machine is hung with the rated load, the buffer spring should not be permanently deformed, and the performance of the conical friction coupling should be good. Chapter 9
Culvert gantry crane and loading and unloading bridge
Section 9.0, 1 This chapter applies to the installation of single-beam and double-beam universal gantry cranes and loading bridges.
Chapter 9.0.2 When installing the gantry of a double-beam universal gantry crane and loading bridge, it shall be carried out in accordance with the equipment technical documents and the assembly markings; the total deviation after assembly shall comply with the provisions of Table 9.0.2.
Double-beam universal gantry crane and
loading bridge assembly allowable deviation
Name and code
5t, Relative difference of S2
IS,S,>26m|
Main: arch F
Uppermost arm height F
Diagonal
L,L,is2hm
Relative difference
IL,-L>26m
Regular rail box frame
Eccentric box frame
Frame dry,
Single web frame
Table 9.0.2
Each name code
Same-Transverse plane small
Height difference
Regular rail frame,
Folding frame
Note: Both the starting or the machine height are measured, and the measurement method shall meet the requirements of the scope of the scope of the measurement.-t The maximum value of the main dyeing speed is located in the middle 5/10 of the main dyeing speed. The measurement method shall comply with the requirements of Appendix 1 of this specification. The measurement method of the main upper low F=
shall comply with the requirements of the current standard catalogue 2. The total upper depth -
0 When the analysis frame is installed on site, the relative difference of the diagonal line shall be checked: ?1. The depth of the dyeing is curved outward, and the section should be measured at the section of the upper flange plate away from IIKkanm. The allowable deviation of the single main gantry crane and the loading and unloading bridge gantry is the relative deviation of the non-aggregate upper depth F
and the old name and code
Design: both the machine start and the training body's degree are measured at the bottom, and the method of stopping the alcohol consumption shall comply with the requirements of this standard.
+The maximum value of health should be 5/0 in the world. The method of internal position shall comply with the requirements of Appendix 2 of this standard; L is the natural condition, the body temperature F, the crown and kidney P number 3, the beam sequence degree is measured in the west direction, and the point is at the front of the flange 10omm to observe the situation.
Clause 9.6.3 When installing the gantry of a single-beam gantry crane and a loading and unloading bridge trolley, the installation shall be carried out in accordance with the provisions of the technical documents of the equipment and the factory assembly marks; when there are no provisions, after installation, the deviation shall comply with the provisions of Article 9.0.3.
Assembly allowable deviation of gantry cranes and loading and unloading bridge trolleys for single main beams
Name and code
The center of the wheel
Horizontal guide wheel
Axis of the main wheel
Center distance L
L Symmetry10. After the release, it shall comply with the provisions of the equipment technical document; after the wire rope is fixed, the horizontality of the balance beam of the sling shall not exceed 2/10 (H0. Article 8.0.11. The installation and construction of the crane shall meet the following requirements: When assembling the loosening mechanism, the adjusting screws or brakes of the upper pulley block shall be adjusted. When the crane exceeds the rated load ID%, the brake shall be opened:
3. The joints of the loosening device shall rotate flexibly; the sprocket and chain of the brake wheel used to rotate the tilting mechanism shall rotate flexibly
4. After the material machine is hung with the rated load, the buffer spring shall not have permanent deformation, and the performance of the conical friction coupling shall be good. Chapter 9
Gantry cranes and loading and unloading bridges
Article 9.0, 1 This chapter applies to the installation of single-beam and double-beam universal gantry cranes and loading bridges.
Chapter 9.0.2 When installing the gantry of a double-beam universal gantry crane and loading bridge, it shall be carried out in accordance with the equipment technical documents and the assembly markings; the total deviation after assembly shall comply with the provisions of Table 9.0.2.
Double-beam universal gantry crane and
loading bridge assembly allowable deviation
Name and code
5t, Relative difference of S2
IS,S,>26m|
Main arch F
Upper arm height F
Diagonal
L,L,is2hm
Relative difference of
IL,-L>26m
Regular box frame
Eccentric box frame
Frame dryness,
Single web frame
Table 9. 0.2
Each code
Same-transverse battle surface
Rail height difference
Correct rail shape frame,
Folding frame
Note: Both the starting or the machine speed are measured, and the measurement method should be within the range of the present invention.-The maximum value of the main dyeing speed is within 5/10 of the center of the main dyeing speed. The measurement method shall comply with the requirements of Appendix 1 of this specification. The main type of upper low F=
The measurement method should be in accordance with the requirements of the second catalog of this standard. The total kidney energy content is -
0. When the analysis frame is installed on site, the relative difference of the diagonal should be checked: ?1. The degree of dyeing is outwardly curved, and the section should be measured at the section of the upper flange plate at a distance of IIKkanm.
Single main gantry crane and loading and unloading bridge gantry allowable deviation
Name and code
Crane Machine
's relative bitterness
non-aggregate support degree on
old name and code
take stomach pregnancy on the degree F
Wang Sang beside there is degree!
Design: the machine starts the degree of both training bottom measurement, the method of alcohol stop is in line with the requirements of this standard Yang Ren
+infected on the health of the most people should be placed in the world across the world 5/0 fill the internal method position in line with the requirements of this standard Appendix II; L is the natural condition long recovery, body beam temperature F, crown kidney sex development P number 3 people beam ticket sequence degree west curve direction into another measurement, and point at the flange calibration 10omm front pain board at the situation.
Clause 9.6.3 When installing the gantry of a single-beam gantry crane and a loading and unloading bridge trolley, the installation shall be carried out in accordance with the provisions of the technical documents of the equipment and the factory assembly marks; when there are no provisions, after installation, the deviation shall comply with the provisions of Article 9.0.3.
Assembly allowable deviation of gantry cranes and loading and unloading bridge trolleys for single main beams
Name and code
The center of the wheel
Horizontal guide wheel
Axis of the main wheel
Center distance L
L Symmetry10. After the release, it shall comply with the provisions of the equipment technical document; after the wire rope is fixed, the horizontality of the balance beam of the sling shall not exceed 2/10 (H0. Article 8.0.11. The installation and construction of the crane shall meet the following requirements: When assembling the loosening mechanism, the adjusting screws or brakes of the upper pulley block shall be adjusted. When the crane exceeds the rated load ID%, the brake shall be opened:
3. The joints of the loosening device shall rotate flexibly; the sprocket and chain of the brake wheel used to rotate the tilting mechanism shall rotate flexibly
4. After the material machine is hung with the rated load, the buffer spring shall not have permanent deformation, and the performance of the conical friction coupling shall be good. Chapter 9
Gantry cranes and loading and unloading bridges
Article 9.0, 1 This chapter applies to the installation of single-beam and double-beam universal gantry cranes and loading bridges.
Chapter 9.0.2 When installing the gantry of a double-beam universal gantry crane and loading bridge, it shall be carried out in accordance with the equipment technical documents and the assembly markings; the total deviation after assembly shall comply with the provisions of Table 9.0.2.
Double-beam universal gantry crane and
loading bridge assembly allowable deviation
Name and code
5t, Relative difference of S2
IS,S,>26m|
Main arch F
Upper arm height F
Diagonal
L,L,is2hm
Relative difference of
IL,-L>26m
Regular box frame
Eccentric box frame
Frame dryness,
Single web frame
Table 9. 0.2
Each code
Same-transverse battle surface
Rail height difference
Correct rail shape frame,
Folding frame
Note: Both the starting or the machine speed are measured, and the measurement method should be within the range of the present invention.-The maximum value of the main dyeing speed is within 5/10 of the center of the main dyeing speed. The measurement method shall comply with the requirements of Appendix 1 of this specification. The main type of upper low F=
The measurement method should be in accordance with the requirements of the second catalog of this standard. The total kidney energy content is -
0. When the analysis frame is installed on site, the relative difference of the diagonal should be checked: ?1. The degree of dyeing is outwardly curved, and the section should be measured at the section of the upper flange plate at a distance of IIKkanm.
Single main gantry crane and loading and unloading bridge gantry allowable deviation
Name and code
Crane Machine
's relative bitterness
non-aggregate support degree on
old name and code
take stomach pregnancy on the degree F
Wang Sang beside there is degree!
Design: the machine starts the degree of both training bottom measurement, the method of alcohol stop is in line with the requirements of this standard Yang Ren
+infected on the health of the most people should be placed in the world across the world 5/0 fill the internal method position in line with the requirements of this standard Appendix II; L is the natural condition long recovery, body beam temperature F, crown kidney sex development P number 3 people beam ticket sequence degree west curve direction into another measurement, and point at the flange calibration 10omm front pain board at the situation.
Clause 9.6.3 When installing the gantry of a single-beam gantry crane and a loading and unloading bridge trolley, the installation shall be carried out in accordance with the provisions of the technical documents of the equipment and the factory assembly marks; when there are no provisions, after installation, the deviation shall comply with the provisions of Article 9.0.3.
Assembly allowable deviation of gantry cranes and loading and unloading bridge trolleys for single main beams
Name and code
The center of the wheel
Horizontal guide wheel
Axis of the main wheel
Center distance L
L Symmetry
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