GB 4447-1992 Anchor windlass and anchor winches for seagoing vessels

This standard specifies the classification, technical requirements and test methods of anchor windlasses and anchor winches. This standard applies to electric, hydraulic, steam-driven anchor windlasses, anchor winches and externally driven anchoring devices for seagoing vessels. In addition to complying with this standard, anchoring and mooring combined machines shall also comply with the relevant provisions of GB4446. GB 4447-1992 Anchor windlasses and anchor winches for seagoing vessels GB4447-1992 Standard download decompression password: www.bzxz.net

UV629.123.015
National Standard of the People's Republic of China
GB4447--92
Sea-going essels-windlasses and anchor capstans1992-03-30Promulgated
National Technical Bureau
1993-01-01Implementation
National Standard of the People's Republic of China
Sea-going vessels-Windlasses and anchor capstansGB 4447-92
Agency G 444784
This standard refers to the international standard IS04368-1086 Offshore - Lowering and Anchoring Capstans and Windlasses 31 Main Contents and Applicable Figures
The standard specifies the classification, technical requirements and test methods of windlasses and anchor winches (hereinafter referred to as windlasses unless otherwise specified).
This standard is applicable to electric, hydraulic, steam-driven windlasses, anchoring capstans and externally driven windlasses for seagoing vessels. In addition to complying with this standard, windlass and mooring combined machines shall also comply with the relevant provisions of GB4146. 2 References
GB 549
Packaging, storage and transportation diagrams
Electric welding anchor chain
Cast copper anchor chain
GB3R93
GB4446
GE7390
GB0912
GB11624
CB3311
CB3179
CB*3242
3Terms
Ship deck machinery names and examples
Mooring winch
Simple appearance||tt| |Performance parameters of windlass and anchor winch
General requirements for deck machinery
Control method for deck machinery models
Test method for electric windlass and anchor winch
In addition to the terms specified in 385, this standard also uses the following terms: 3.1 Working load of the windlass Working load is measured at the chain sprocket and is derived from the chain diameter and chain grade. 3.2 Overload pull
Time efficiency of the windlass.
3.3 Support load1rolJing load
The maximum static load on the anchor chain that the anchor chain pulley brake can withstand. 3.4 Nominal speednominal2peect
The average speed when three sections of the chain are submerged in the water and freely suspended, or when two sections of the anchor chain are retracted. 3.5 Symmetrical double-staggered sprocket windlass, symmeirikl rlunlalealle—l.ifirrwirudlasx is a windlass with two symmetrical sprockets driven by independent power. Approved by the State Bureau of Technical Supervision on March 30, 1992, and implemented on January 1, 1993. GE4447-92 3.6 Single-cable-lifter windlass A windlass with independent power: a windlass with two sprockets 3.7 Single-cable-lifter unit A windlass driven by an external power source with one auxiliary sprocket. 3.8 Right-hand (left-hand) windlass When the core is located on the side of the prime mover, power or controller, if the anchor chain wheel or sprocket is equipped with a drive device on the sprocket, it is called a right-hand windlass: if the drive device is on the left side of the chain, it is called a left-hand windlass. 3.9 Depth of water measured from the sea surface at the anchor point.
AProduct Classification
Symmetrical double-end sprocket box lifter, see Figure 1.
Type A--
Single-end sprocket anchor lifter, see Figure 2
Type C, Type 1--Single-end sprocket anchor lifter, see Figure 3.Figure 4 Anchor plate, see Figure 5.
CHIHHIH
Figure 1A Type symmetrical double-end sprocket lifter (power drive) Dongshi
Ke 2B Type single-end sprocket anchor lifter (power drive) Dongshi
Figure 3 Type single-end sprocket lifter (external power drive) (power high combined army)
Suli disease combined display[
GA 4447-92
Field force high combination
Figure 4D type single-missing wheel screw key cover
(two-ring external power drive)
4.2 Most of the basic
The performance parameters of the anchoring machine and anchoring plate shall comply with the provisions of GH9912. 4.3 The nominal specification of the anchoring plate
Figure E type anchoring plate
The nominal specification is expressed by the diameter, the level of the anchoring plate, the load supported and the water depth of the anchoring plate. If it is less than 82.5, the ground boring depth is not expressed. 4.4 Mark
4.4.1 Marking composition form
Product name
4.4.2 Marking example
Standard mother
Public specification. See 4-3
z-—left type
Y—right type
Type, 4.1
Machine model code
Dynamic shape code:
Section *3341
Example 1 Anchor grid is 0mT: Cat chain grade is 3 supporting load cold 45% laying load, anchoring depth is 100m, B type electric windlass. bzxZ.net
Starting pin DMB 9(I-3-45-10oGB4447-2 Example 2. The auxiliary chain diameter is 40mm, the misalignment level is level 3, and the support load is 45% of the misalignment load. The anchor water depth is equal to or less than B2.5m. Type B hydraulic starter and breaker.
Starting machine YMBY40-3-45GB444792
5 Technical requirements
5. 1 Performance
For export products, the requirements of relevant grade societies shall be met. 5.1.1 The lifting machine must be capable of working 31mm continuously under load, and should be capable of working continuously for 2min under the deceleration specified in 5.1.3.3.
5.1.2 The nominal speed of the lifting machine shall not be less than 0.5/5.1.3 The load-bearing ratio of the lifting machine is based on the use of one sprocket at a time, the approved conditions, and the chain efficiency is 70%, and the seawater load coefficient is 87%.
GB 4447--92
5.1.3.1 The working load of the lifting machine with a water depth equal to or less than 82.5m is determined by formula (1). Level 1 F, = 37. 5
i2-level anchor chain F,42.52
[3-level anchor chain F,=47.5
wherein, the working load
d can be chain diameter + mm
5.1.3.2 The auxiliary water depth is 52.5m. The working load of the staggered row is selected by dialing or (2). F+= F, + (D - 82.5) X 0.27 d3wherein: F. Working load Ni
D-ground tank depth.\.
5.1.3.3 Overload bearing capacity
The overload force is 1.5 51.3.4 The support must be loaded with a chain stopper, 0.45×anchor chain breaking load or .N without a chain stopper: according to the requirements of the classification society, 5.2 Design and structure The export products shall also meet the national safety regulations of the relevant countries that have an impact on the control of the misalignment machine. 5.2.1 This standard adopts 3 laying chains as its reward, first GB54$ and GB0. 5.2.2 Sprocket 1 The sprocket is designed according to the provisions of CD, 3179. b. The laying sprocket must be able to be disengaged from the account, and the high-speed belt of the power change must also be disengaged. 5.2.3 The cable drum can be designed to be a belt without a relatively elastic drum, which causes The cylinder can be installed on the intermediate shaft or the wheel. The appearance of the cable is shown in GB75005.2.4 Strength requirements. If a chain stopper is installed, when the brake is installed and the sprocket is released, the starter will bear 5% of the breaking load, and its variable force will not be reversed and there will be permanent deformation. Its brake device should not have any signs of dismantling. If a chain stopper is not installed, the starter should comply with relevant social requirements. 5.2.4.2 The stress of the starter and the related parts of the starter bracket must meet the elastic limit of the material used. When designing, pay attention to the stress concentration of the key increase and other high stress operations. a. b. The power effect caused by the sudden start and stop of the source engine or key chain. E.The calculation method used when calculating the design stress is d. The relevant classification village requirements,
5.2.5 Braking device
5.2.5.1 Control brake device
The electric fault starter must be equipped with an automatic brake device that can automatically operate when the corrector bar is stopped or the brake position is changed or the power is cut off. This brake device should be able to support 1.3 screen working load on the cat chain. For other drive types, suitable brake devices should also be used. The brake device should also be able to support 1.3 working load on the chain. 5.2.5.2 Frog wheel brush device
Each sprocket should be equipped with a manual travel device. This brake device can also be controlled. Its brake torque should be sufficient to support the support load specified in this standard.
5.2.6 Emergency stop mechanism
5.2.6.1 Each fully operational hoist must have a quick-acting emergency stop mechanism to cut off the power of the hoist and put the control brake into operation.
G 444792
5.2.6.2 The emergency stop mechanism must be set up in a place with obvious signs and close to the operator. 5.2.7 Protection
5.2.7.1 The prime mover and transmission device should consider the energy response of over-torque and impact. 5.2.2 The transmission components and related parts should take into account the influence of the over-torque generated by the original engine. 5.2.8 Speed ​​control
The sprocket speed should be adjustable between the idle speed and stop, and its starting speed should also be adjustable during the process of starting. 5.2.9 Windlass
5.2.9.1 The action and direction of the windlass should be in accordance with the provisions of G11624. 5.2.9.2 All control handles should have water-proof markings: 5.2.9.3 Non-subscriber product manufacturers have other agreements: regardless of the windlass What kind of power drive is used? When manually controlled, the operating device must be able to stop the machine. 6 Test methods
6.1 The test of electric windlass shall be carried out according to the requirements of CB\3242: 6.2 Other power-driven windlasses and anchors shall be tested and inspected according to the following items. If the test items need to be increased or decreased, the user and the manufacturer shall reach an agreement when signing the contract, and the test site shall also be determined by the user and the manufacturer at the same time. 6.2.1 The windlass must be rotated at the same time under the condition of low-voltage and high-speed. Each turn is 15 minutes. After 30 minutes or more, the speed shall be changed as soon as possible, and the operation shall be accelerated at each turn. The following inspections or tests shall be carried out during the test: a. Oil sealing condition: h. Shaft flatness
Pollution is common.
6.2.2 The anchor should be operated for a specified length of time. The pull force should be tested and monitored. It should meet the requirements of this standard: the following test sequence should be carried out:
Oil tightness;
h. Bearing degree,
c. There is abnormal noise;
d. Whether there is chain jumping phenomenon
6.2.3 The working condition and operation of the control brake and the load wheel brake must be checked to ensure that they meet the requirements of this standard.
· The control and stop test of the card box load wheel brake should be carried out. The support load of the pin chain light brake device can be confirmed by test reduction calculation. The user and the manufacturer shall determine it when placing an order. 6.2.4 If the anchor is equipped with a strong control or other special device, its lifting performance must be checked. 7 Marking, packaging, transportation and storage
7.1 Marking
The lead lifting machine or lifting winch that complies with this standard shall be permanently marked with the following contents: Name
h. Product name
Trademark:
Product model mark:
Product inspection mark
2. Date of manufacture
7.2 Packaging, transportation and storage
GB 414792
The packaging shall comply with the provisions of GB B19. The product shall not be stamped during transportation, and the packaging box shall not be damaged. The product shall be stored in a safe room.
Additional instructions
This standard is proposed by China State Shipbuilding Corporation. This standard was drafted by the Deck Machinery Technical Committee of the National Technical Committee for Standardization of Marine Machinery and the Deck Machinery Technical Committee of the Ministry of Industry and Information Technology, and the 70th and 603rd Institutes of the China State Shipbuilding Corporation. The main authors of this standard are Zhou Baohua,
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