1 Scope
This standard specifies the type classification and basic parameters, technical requirement, test methods, inspection rules, marking, packaging, transport and storage of general-purpose gantry cranes with a rated capacity of 3.2 t—320 t.
This standard is applicable to the general-purpose gantry cranes (hereinafter referred to as "cranes") in service in the open air, with hooks, grabs or magnets (magnetic pads) as their load-lifting attachments, or two or three of the aforesaid means used simultaneously.
For general-purpose gantry cranes with a rated capacity over 320 t or the identical parts of other gantry cranes, this standard may also be referenced.
This standard is not applicable to cranes in service in the following conditions:
—in the presence of inflammable, explosive or combustible gas, dust and corrosive gas;
—in the presence of nuclear radiation, toxic gas.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191, Packaging—Pictorial marking for handling of goods
GB 755—2008, Rotating electrical machines—Rating and performance
GB/T 1228, High strength bolts with large hexagon head for steel structures
GB/T 1229, High strength large hexagon nuts for steel structures
GB/T 1230, High strength plain washers for steel structures
GB/T 1231, Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures
GB 2893, Safety colours
GB/T 3323, Radiographic examination of fusion welded joints in metallic materials
GB/T 3632, Sets of torshear type high strength bolt hexagon nut and plain washer for steel struc-tures
GB/T 3811—2008, Design rules for cranes
GB 4208, Degrees of protection provided by enclosure (IP code)
GB 5226.1, Electrical safety of machinery—Electrical equipment of machines—Part 1: General re-quirements
GB 5226.2, Safety of machinery—Electrical equipment of machines—Part 32: Requirements for hoisting machines
GB/T 5905, Cranes— Test codes and procedures
GB 6067.1—2010, Safety rules for lifting appliances—Part 1 : General
GB/T 6974.1, Cranes—Vocabulary—Part 1: General
GB/T 6974.5, Cranes—Vocabulary—Part 5: Bridge and gantry cranes
GB 8918, Steel wire ropes for important purposes
GB/T 8923, Rust grades and preparation grades of steel surface before application of paints and relat-ed products
GB/T 9286, Paints and varnishes—Cross cut test for films
GB/T 10051.1 ~ 10051.12-2010, Lifting hooks
GB/T 10095(all parts), Cylindrical gears—System of accuracy
GB/T 10183.1, Cranes—Tolerances for wheels and travel and traversing tracks—Part 1: General
GB 12602, Lifting appliances-safety devices against overloading
GB/T 13306, Plates
GB/T 13384, General specifications for packaging of mechanical and electrical product
GB 14048.1—2006, Low-voltage switchgear and controlgear—Part 1: General rules
GB 15052, Cranes—Safety signs and hazard pictorials—General principles
GB/T 19418, Arc-welded joints in steel—Guidance on quality levels for imperfections
GB/T 20118, Steel wire ropes for general purpose
GB/T 20303.1, Cranes—Cabins—Part 1: General
GB/T 20303.5, Cranes—Cabins—Part 5: Overhead travelling and portal bridge cranes
GB/T 21971, Technical specification for YZD range of multi-speed three-phase induction motors for crane application
GB/T 21972.1, Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical application—Part 1: YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications
GB/T 24809.5, Cranes—Requirements for mechanism—Part 5: Bridge and gantry cranes GB/T 24811.1, Cranes and lifting appliances—Selection of wire ropes—Part 1: General
JB/T 5000.8—2007, Heavy mechanical general techniques and standards—Part 8: Forging
JB/T 5870, YZR series medium-size & high-voltage wound-rotor three-phase induction motors for crane and metallurgical application—Technical requirements
JB/T 6391.1, Conductor systems—Part 1: Insulated conductor systems
JB/T 6391.2, Conductor systems—Part 2: Bare conductor systems
JB/T 6392, Rail wheels for crane
JB/T 6406, Electro-hydraulic drum brakes
JB/T 7017, Hydraulic buffers for cranes
JB/T 7019, Disk brake—Braking disk
JB/T 7020, Electro-hydraulic disc brakes
JB/T 7076, YEZS series dual-speed& conical rotor braking three-phase induction motors for crane ap-plication-Technical requirements
JB/T 7077, YZRE series electromagnetic braking wound rotor type three-phase induction motors for crane and metallurgical application—Technical requirements
JB/T 7078, YZRF and YZRG series forced ventilation wound rotor type three-phase induction motors for crane and metallurgical application— Technical requirements
JB/T 7842, YZR-Z series wound rotor type three-phase induction motors for crane application only— Technical requirements
JB/T 7685, Electro-magnetic drum brake
