JB/T 6392.2-1992 Crane wheel technical conditions

This standard specifies the technical requirements and inspection rules for rotating shaft cylindrical wheels for cranes. The standard applies to cylindrical wheels (hereinafter referred to as wheels) used on bridges, gantry cranes and metallurgical cranes. Wheels for other cranes can also be used as a reference. JB/T 6392.2-1992 Technical conditions for crane wheels JB/T6392.2-1992 Standard download and decompression password: www.bzxz.net

Machinery Industry Standards of the People's Republic of China
Technical Conditions for Crane Wheels
1 Subject Content and Scope of Application
This standard specifies the technical requirements and inspection rules for rotating shaft cylindrical wheels for cranes JB/ T 6392.2.-.92
This standard applies to cylindrical wheels (hereinafter referred to as wheels) used on bridges, gantry cranes and metallurgical cranes. Wheels used for other cranes can also refer to Shichuan.
2 cited standards
GB699 high-quality carbon structural steel technical conditions
GB1031www.bzxz.net
GB1184
GB1801
GB1802
GB3811
GB 11352
Surface roughness parameters and their values
Shape and position tolerances, specified tolerances and fitting dimensions for unindicated tolerances up to 500) mm hole, shaft tolerance zone and fitting tolerances Design specifications for cranes with common hole and shaft tolerances with matching dimensions greater than 500 to 3150mm
Casted carbon steel parts for general engineering
GB/T13384 General technical conditions for mechanical and electrical product packaging 3 Technical requirements
3.1 Material
The material of rolled wheels should not be lower than 60 steel specified in GB699. Forged wheel materials, wheels with a tread diameter not greater than 400 mml should be no less than 45 steel specified in GB699; wheels with a tread diameter greater than 400 mm should be no less than 55 steel.
The cast wheel material should be no less than ZG340-640 steel specified in GB11352. 3.2 Heat treatment
After heat treatment, the wheels should comply with the requirements in Table 1. Qiu
wheel tread diameter
3.3 precision
tread and rim inner surface hardness HB
300-380| |tt||Depth of hardened layer 260E113
3.3.1 The dimensional deviation of the wheel tread diameter should not be less than GB1801~1802 h9 as specified in. The dimensional deviation of the shaft hole should not be lower than H7. 3.3.2 The annual ring tread and the datum end face (plus a 1.5mm deep groove as a mark) the radial runout of the buckle with respect to the hole axis and the end face circular runout should not be lower than Level 8 specified in 31184
3.3.3 The surface roughness parameter value of the wheel tread and the inner side of the rim is 6.31m according to the Ru specified in GB1031. The surface roughness parameter value Ru of the axle hole is 3.2um.
Ministry of Mechanical and Electronic Industry of the People's Republic of China approved on 1992-07-14 for implementation on 1993-07-01
3.4 ??Surface quality of finished wheels
JB/T 6392.2 92
3.4.1 The surface of the wheel shall not have cracks:
3.4.2 The defects such as blisters, pores, and slag on the surface of the cast wheel shall not exceed the requirements in Table 2. Table 2
Defect location
End face and
Non-cutting surface
Tread and
Inside surface of rim
Defect equivalent value
DS500: 1
D>500:1.5
Note: It is the wall thickness of the shaded area. 1) It is the wheel tread diameter. Depth of defects
maximum 10
3.4.3 Defects on the wheel tread and the inner surface of the rim are not allowed to be repaired by welding 4 Load capacity
of the wheel The bearing capacity should be calculated according to the relevant provisions in (:133811. 5 Inspection Rules
Number of defects
(place)
Defects jump||tt ||0
5.1 Each wheel shall be inspected item by item according to the product drawings for all items except the depth of the hardened layer specified in this standard, and all items shall be qualified. .
5.2 The depth of the deep hard layer shall be inspected at a rate of one thousandth (but not less than . tt||5.3 The detection method of the hardness and hardened layer depth of the wheel tread and the inner side of the rim is as follows: When testing the hardness of the tread and the inner side of the rim, the Sichuan hardness tester measures 3 points along the circumference under the wheel tread, two of which Qualified means qualified;
When measuring the depth of the hard layer, cut the wheel with gas cutting (to eliminate the heat-affected zone. For example, the work allowance should be at least 20mm). Then add it into b.||tt| |Test the sample in the radial part. Starting from the tread, use a hardness tester to measure the depth at 260HB intervals along the radial direction. Just is the depth of the hardened layer
6 mark, packaging.
6.1 The factory inspection mark (mark) should be stamped on the reference end surface of the wheel that has passed the inspection. 6.2 The cutting surface of the wheel should be coated with anti-rust oil, and the other surfaces should be coated with anti-rust paint. The packaging should comply with the relevant provisions of (G13/T13384). Additional remarks:
This standard is proposed and exported by the Beijing Hoisting and Transport Machinery Research Institute of the Ministry of Mechanical and Electronics. This standard is responsible for the Shanghai Hoisting and Transport Machinery Alkali Factory Drafting. The main drafters of this standard: Wang Debao, Yang Shoufa, Zhenggen draft 102
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