1 Scope
This standard specifies the types, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage and other contents of electric single girder crane (hereinafter referred to as "crane").
This standard is applicable to general-purpose cranes using electric hoist as hoisting mechanism and also can be taken as reference to cranes in other forms or special-purpose cranes.
This standard is not applicable to cranes working in the following environmental conditions:
- The environment with explosive gas, combustible dust and corrosive gas;
- Lifting molten metal, inflammables and explosives.
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents apply. For undated references, their latest editions apply.
Tolerances for Cranes Manufacture and Tracks Laying (GB/T
10183-2005, ISO 8306: 1985, MOD)
GB/T 13306 Plates
GB/T 13384 General Specifications for Packing of Mechanical and Electrical
Product
GB 14048.1-2006 Low-voltage Switchgear and Controlgear - Part 1: General Rules
(IEC 60947-1: 2001, MOD)
JB/T 4315 Crane Electric Control Equipment
JB/T 5317 Electric Chain Hoists
JB/T 6391.1 Conductor Systems - Part 1: Insulated Conductor Systems
JB/T 8110.2 Rubber Buffer for Crane
JB/T 8437 Wireless Remote Control Unit of Hoisting Machinery
JB/T 9008.1 Electric Wire Rope Hoists - Part 1: Types and Basic Parameter, Specification
JB/T 10559 Non-destructive Testing of Lifting Appliances - Ultrasonic Testing of Steel Welds
JB/T 10833 The Polyurethane Buffer for Cranes
3 Types and Basic Parameters
3.1 Types
3.1.1 Cranes are classified into the following types according to the position and operating mode of hoisting mechanism:
a) The crane with electric hoist trolley operating at the lower flange of main girder and equipped with a trolley of standard building height is shown in Figure 1;
b) The crane equipped with a trolley of low building height is shown in Figure 2;
c) The crane with electric hoist mounted on angular trolley is shown in Figure 3.
Foreword ...................................................................................................................................II
1 Scope ...................................................................................................................................
2 Normative References .........................................................................................................
3 Types and Basic Parameters ................................................................................................
3.1 Types ................................................................................................................................
3.2 Basic Parameters ..............................................................................................................
4 Technical Requirements ......................................................................................................
4.1 Environmental and Operating Requirements ...................................................................
4.2 Basic Requirements ..........................................................................................................
4.3 Service Performance.........................................................................................................
4.4 Safety and Health .............................................................................................................
4.5 Welding.............................................................................................................................
4.6 Bridge (after Assembly of the Crane Operation Mechanism) ..........................................
4.7 Assembly ..........................................................................................................................
4.8 Electric Control Equipment ..............................................................................................
4.9 Steel Pretreatment and Painting......................................................................................
5 Test Methods .....................................................................................................................
5.1 Visual Inspection ............................................................................................................
5.2 No-load Test ...................................................................................................................
5.3 Static Load Test ..............................................................................................................
5.4 Rated Load Test ..............................................................................................................
5.5 Noise Test of Complete Machine ...................................................................................
5.6 Static Rigidity Test .........................................................................................................
5.7 Dynamic Load Test.........................................................................................................
5.8 Span Deviation of Crane ................................................................................................
5.9 Diagonal Difference of Bridge .......................................................................................
5.10 Local Warping of Main Girder Web .............................................................................
5.11 Camber of Main Girder ................................................................................................
5.12 Height Difference of Crane Wheel Acting Points ........................................................
5.13 Vertical Deviation and Horizontal Deviation of Crane Wheels....................................
6 Inspection Rules ................................................................................................................
6.1 End-of-manufacturing Inspection...................................................................................
6.2 Type Inspection ..............................................................................................................
7 Marking, Packaging, Transportation and Storage .............................................................
7.1 Marking ..........................................................................................................................
7.2 Packaging, Transportation and Storage ..........................................................................
