1 Scope
This standard specifies the type classification and basic parameters, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of bridge crane for general purpose with the rated capacity 3.2t~320t.
This standard is applicable to bridge crane for general purpose (hereinafter referred to as crane) operating in general environment. Its load-handling device is hook or grab bucket or lifting electromagnet (electromagnetic chuck) or are two or three of them at the same time.
This standard may also be used by reference for bridge crane for general purpose with rated capacity greater than 320t or the same part of other bridge crane.
This standard is not applicable to crane used in the following conditions:
——Environment with flammable and combustible gas, dust or corrosive gas;
——Nuclear environment or environment with toxic gas.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited apply. For undated references, the latest editions of the normative documents (include any amendment) apply.
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 Structures
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 Requirements
GB 5226.2 Safety of Machinery--Electrical Equipment of Machines - Part 32: Requirements for Hoisting Machines
GB/T 5905 Cranes—Test code 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 8923 Rust Grades and Preparation Grades of Steel Surfaces before Application of Paints and Related 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 Packing 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 Application
GB/T 24809.5 Cranes - Requirements for Mechanisms - Part 5: Bridge and Gantry Cranes
GB/T 24811.1 Cranes and Lifting Appliances - Selection of Wire Ropes - Part 1: General
JB/T 5870 Technical Specification for YZR Range of High-voltage Medium-sized Wound-rotor Three-phase Induction Motors for Crane and Metallurgical Application
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 Buffer for Crane
JB/T 7019 Disc Brake – Brake Disc
JB/T 7020 Electro-hydraulic Disc Brakes
JB/T 7076 Technical Specification for YEZS Range of Double-speed Conical-rotor Brake Three-phase induction motors for crane application
JB/T 7077 Technical Specifications for YZRE Range of Electromagnetic Braking Three-phase Slip-ring Rotor Induction Motors for Crane and Metallurgical Application
JB/T 7078 Technical Specifications for YZRG Range of Forced-ventilated Wound-rotor Three-phase Induction Motors for Crane and Metallurgical Application
JB/T 7685 Electro-magnetic Drum Brakes
JB/T 7842 Technical Specification for YZR-Z Range of Special-purpose Wound-rotor Three-phase Induction Motors for Crane Application
JB/T 8110.1 Spring Buffer for Crane
JB/T 8110.2 Rubber Buffer for Crane
JB/T 8398 Double Radial Plate Pressed Pulley
JB/T 8437 Wireless Remote Control Unit of Hoisting Machinery
JB/T 8905.1 Three-point Support Gearboxes for Cranes
JB/T 8905.2 Foot Mounted Gearboxes for Cranes
JB/T 8905.3 Vertical Gearboxes for Cranes
JB/T 8905.4 Hollow Shaft Gearboxes for Cranes
JB/T 8955 Specification for YZR2 Series Wound-rotor Three-phase Induction Motor for Crane and Metallurgical Application
JB/T 9003 Gearboxes with Brake Motors for Cranes
JB/T 9005 (All Parts) Casting Sheaves for Cranes
JB/T 9006 (All Parts) Casting Drums for Cranes
JB/T 10104 YZ Range of Three-phase Induction Motors for Crane and Metallurgical Application — Technical Specifications
JB/T 10105 Specification for YZR Series Wound-rotor Three-phase Induction Motor for Crane and Metallurgical Application
JB/T 10360 Technical Specifications for YZ2 Range of Three-phase Induction Motors for Crane and Metallurgical Application
JB/T 10559 Non-destructive Testing of Lifting Appliances-Ultrasonic Testing of Steel Welds
JB/T 10730 DC Electromagnetic Lifter
JB/T 10816 Foot Mounted Hardened Tooth Flank Gearboxes for Cranes
JB/T 10817 Three-point Support Hardened Tooth Flank Gearboxes for Cranes
JB/T 10833 Polyurethane Buffer for Cranes
JGJ 82 Code for Design, Construction and Acceptance of High Strength Bolt Connection of Steel Structures
JG/T 5078.1 Construction Machinery and Equipment Welded Pulleys
JJG 4 Steel Tape
3 Terminologies and Definitions
For the purpose of this standard, terminologies and definitions defined in GB/T 6974.1 and GB/T 697 4.5 apply.
4 Type Classification and Basic Parameters
Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Type Classification and Basic Parameters
4.1 Type Classification
4.2 Basic Parameters
5 Technical Requirements
5.1 Working Environment Conditions
5.2 Basic Requirements
5.3 Service Performance
5.4 Safety and Protection
5.5 Main Components
5.6 Primary Member Connection
5.7 Bridge
5.8 Assembly
5.9 Electrical Equipment
5.10 Painting
6 Test Method
6.1 General
6.2 Assembly Test of Bridge
6.3 Tests for Machinery Installation
6.4 Test of Mechanism Speed and Brake Distance
6.5 Test of Crane Noise
6.6 Test of Insulation Resistance Circuits in Electric Control Equipment
6.7 Verification of Bucket Fill Factor
6.8 Verification of Lifting Electromagnet Magnetic Capacity and Electronic Control System Eletromagnet-keeping Capacity
6.9 Overall Test
7 Inspection Rules
7.1 Inspection Classification
7.2 Outgoing Inspection
7.3 Type Approval Test
8 Marking, Packaging, Transportation and Storage
8.1 Marking
8.2 Packaging
8.3 Transportation and Storage
