1 Scope
Part 1 of JB/T 9008 specifies terminologies and definitions, types and basic parameters, technical requirements, inspection rules, marking, packaging, transportation and storage of electric wire rope hoists.
This part is applicable to electric wire rope hoist (hereinafter referred to as electric hoist) applying or swinging molten metal in general working environment, and it is referred to electric hoist working in other environment.
This part is inapplicable to electric hoists used in the following environments:
- The environment with explosive gas, combustible dust or corrosive gas;
- The environment with nuclear radiation or toxic gas.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendment) applies to this document.
GB 755-2008 Rotating Electrical Machines - Rating and Performance
GB/T 783 Lifting Appliance - Range of Maximum Capacities for Basic Models
GB/T 3797-2005 Electrical Control Assemblies
GB/T 3811-2008 Design Rules for Cranes
GB/T 4205 Basic and Safety Principles for Man-machine Interface (MMI), Marking and Identification - Actuating Principles
GB 4208-2008 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 4942.1 Degrees of Protection Provided by the Integral Design of Rotating Electrical Machines (IP Code) - Classification
GB 5226.1-2008 Electrical Safety of Machinery - Electrical Equipment of Machines - Part 1: General Requirements
GB 5226.2-2002 Safety of Machinery - Electrical Equipment of Machines - Part 32: Requirements for Hoisting Machines
GB 6067.1 Safety Rules for Lifting Appliances - Part 1: General Rules
GB 8918 Steel Wire Ropes for Important Purposes
GB/T 9286 Paints and Varnishes - Cross Cut Test for Films
GB/T 10051.1 Lifting Hooks - Mechanical Properties, Lifting Capacities, Stresses and Materials
GB/T 13306 Plates
GB/T 13384 General Specification for Packing of Mechanical and Electrical Product
GB 14048.1-2012 Low-voltage Switchgear and Controlgear - Part 1: General Rules
GB/T 20118 Steel Wire Ropes for General Purpose
JB/T 3907 Machine Tool Electric Apparatus - Push-button Switches
JB/T 9008.2-2015 Electric Wire Rope Hoists Part2: Testing Method
3 Terminologies and Definitions
For the purposes of this document, the following terminologies and definitions apply.
3.1 Electric hoist
A hoist assembled by motor, reducer, brake and others to lift and lower load-handling device by rolling and releasing lifting rope/lifting chain with reel/chain reel respectively.
3.2 Electric wire rope hoist
A kind of electric hoist taking flexible member as steel wire rope.
3.3 Hook safe distance
The minimum distance between the hook set and the potential obstacle when the hook set reaches the upper limit position and the reel rolling stops.
Foreword I
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Types and Basic Parameters
4.1 Types
4.2 Basic Parameters
5 Technical Requirements
5.1 Working Environment Conditions
5.2 Basic Requirements
5.3 Service Performance
5.4 Safety and Hygiene
5.5 The Service Life of Hoisting Mechanism
5.6 Painting and Appearance
5.7 Main Parts and Components
6 Test Methods
7 Inspection Rules
7.1 Motor Inspection
7.2 Inspection Classifications
7.3 End-of-manufacturing Inspection (Test)
7.4 Type Test
7.5 Life Test
8 Marking, Packaging, Transportation and Storage
