This standard specifies the types and basic parameters of electric hoist gantry cranes. This standard is applicable to cranes with working levels A2~A5, the lifting mechanism (electric hoist) trolley runs on the lower flange of the main beam, and its retrieval device hook, grab bucket or electromagnetic suction cup. This standard does not apply to cranes that work in flammable, explosive and corrosive gas environments and lift hot items above 300°C and other dangerous items. JB/T 5663.1-1991 Types and basic parameters of electric hoist gantry crane JB/T5663.1-1991 Standard download and decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
Electric hoist gantry crane
Type and basic parameters
1 Subject content and scope of application
JB/T 5663.1--91|| tt||This standard specifies the type and basic parameters of electric hoist gantry cranes (hereinafter referred to as cranes). This standard is applicable to cranes with working levels A2 to A5, the lifting mechanism (electric hoist) trolley runs on the lower flange of the main beam, and the retrieval device is a hook, grab bucket or electromagnetic suction cup. This standard does not apply to cranes working in environments with flammable, explosive and corrosive gases and lifting hot items above 300C and other dangerous items.
2 cited standards
GB783 crane maximum lifting capacity series
crane design specifications
GB3811
3 types
3.1 Basic types of cranes According to its retrieval device, it is divided into: a.
b.
Electric hoist hook gantry crane, code-named MH; Electric hoist grab gantry crane, code-named MHZ; Electric hoist electromagnetic gantry crane Crane, codenamed MHC. 3.2 The crane mast can adopt no-cantilever, single-cantilever or double-cantilever structure. The main beam generally adopts box, truss or combined main beam structure. The outriggers adopt double rigid outriggers, and when the span is large, one rigid outrigger and one flexible outrigger can also be used. 3.3 Commonly used cranes are shown in the figure:
D
H
3.4 ??Model representation method
Approved by the Ministry of Mechanical and Electronics Industry of the People's Republic of China 1991-08-14 492| |tt||Implemented on 1992-07-01
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5 mark example
3.5
a.
b.
4
JB/T5663.1-—91
Conductive mode (sliding wire conductive is represented by U: cable conductive is not represented) Crane working level
-span, m
Rated lifting capacity (code: G, hereinafter referred to as lifting capacity) , t product code (see item 3.1)
The lifting capacity is 3.2t, the span is 14m, the working level is A5, and the hook gantry crane using conductive cables: Crane MH3.2-14A5JB/T5663.1| |tt||The lifting capacity is 8t, the span is 40m, the working level is A4, and the grab gantry crane using slide wire conduction: Crane MHZ8-40A4UJB/T5663.1
The lifting capacity is 10t, the span is 22m, Electromagnetic gantry crane with working level A5 and using conductive slide wires: Crane MHC10-22A5UJB/T5663.1
Basic parameters
The lifting capacity of the crane is as follows:
4.1|| tt||2,3.2,5.8,10,12.5,16t
Note: The lifting capacity of the grab and electromagnetic crane includes the own weight of its pickup device. The lifting height of the crane is selected according to Table 1. | |tt | The span (code: S) is specified as follows: 6, 10, 14, 18, 22, 26, 30.35, 40m
4.4
When the crane has a cantilever, the effective length of the cantilever is selected according to Table 2. Table 2
Span s
10,14
18~~26
30~40
4.5 The working speed of each mechanism of the crane is selected according to Table 3 3
Lifting capacity, 1
Crane operating mechanism
Car operating mechanism
Lifting mechanism
2~5
Lifting height H
6.3.8.10.12.5
6.3,8,10
Cantilever effective length
3~5
5~7
7~10
20-63
LI2
8~16www.bzxz.net
im
m
m/min
2050
10~-40
4~12.5
4.6 The working level of the crane is A2~A5. You can refer to Appendix A (reference parts) to select the working level of the 493

A1
A2
crane according to different usage conditions
JB/T 5663.1 .--91
Appendix A
Selection of crane working level
(reference part)
When it is difficult for the user to accurately calculate the crane's work according to the provisions of GB3811 Level, it is recommended to select according to Table A1. Table A1
Object retrieval device
hook
move
electromagnetic sucker
use site
power station, warehouse
station , wharf, cargo yard
production workshop
bulk cargo yard
loading and unloading wagons
scrap steel yard
working level of each mechanism of the lifting machine|| tt||Usage level
Infrequently used
Infrequently used
More frequently used
Infrequently used
More frequently used
Crane working level
A2～A3
A3～A4
A5
A3A4
A5
When it is difficult for the user to perform the work according to the regulations of GB3811 When calculating the working level of each mechanism of the crane more accurately, it can be determined based on the following principles.
a.
b.
The lifting mechanism is generally of the same level as the crane.
The trolley operating mechanism and the crane operating mechanism can be 1~~2 levels lower than the working level of the crane. Additional notes:
This standard is proposed and administered by the Beijing Hoisting and Transport Machinery Research Institute of the Ministry of Mechanical and Electronics Industry. This standard is drafted by the Beijing Hoisting and Transportation Machinery Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafter of this standard is Ma Jingdong.
494
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