GB/T 14405-2011General purpose bridge cranes (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard replaces GB/T 14405-1993 "General bridge crane." This standard and GB/T 14405-1993 compared to the main changes are as follows.

--- Modify the definition of nominal weight, and will expand the scope of the rated capacity to 320t;

--- Modify the tolerance requirements wheels, carts and trolley tracks;

--- Adjust the main beam under vertical static deflection indicators;

--- Adjust the camber on the main beam across the requirements;

--- Adjust the minimum temperature of the crane when working outdoors;

--- Adjust the crane speed parameter;

--- Added "About" and "Terms and Definitions";

--- Increase the data "more car" crane;

--- Increased use of high strength steel bolts to connect large hexagonal head and disc brake rotor runout requirements;

--- Increasing the weld surface quality requirements;

--- Added "manipulate terrestrial wired, wireless remote control manipulation and multi-point manipulation" security requirements;

--- Added "shock-prone, pummeling, bump, pinch and other unsafe set at the appropriate safety warning signs" and so on;

--- Increasing the test method main item;

--- Remove the model representation of the crane;

--- Remove the control tolerances crane metal structure of the selection of materials and structural elements of the manufacturing process;

--- Remove Appendix A.

1 Scope

This standard specifies the nominal weight of 3.2t ~ 320t bridge crane general classification of the type and basic parameters, technical requirements, test Methods, inspection rules, marking, packaging, transportation and storage.

This standard applies to work in the general environment in general overhead crane (hereinafter referred to as the crane). Which means to extract the hook or grab Or lifting magnet (electromagnetic sucker), or both made of two or three.

For general overhead crane or other part of the same weight is greater than 320t overhead crane's rated capacity, may also refer to use.

This standard does not apply to the crane under the following conditions.

--- Explosive, flammable gas, dust, and corrosive gas environment;

--- Nuclear radiation environment, toxic gas environment.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 191 Packaging - Pictorial signs

GB 755-2008 rotating motor fixed and performance

GB/T 1228 high strength steel with large hexagon head bolts

GB/T 1229 steel with high strength large hexagon nuts

GB/T 1230 high-strength steel washers

GB/T 1231 Steel hexagon head bolts, hexagon nuts, plain washers for high-strength

GB 2893 Safety colors

GB/T 3323 metal fusion welded joints radiography

GB/T 3632 Steel with torsional shear bolts connecting deputy

GB/T 3811-2008 crane design specifications

GB 4208 housing protection (IP Code)

GB 5226.1 mechanical and electrical safety of machinery - Electrical equipment - Part 1: General requirements

GB 5226.2 Safety of machinery - Electrical equipment - Part 32: Requirements for hoisting machines

GB/T 5905 Cranes - Test code and procedures

GB 6067.1-2010 crane safety regulations - Part 1: General

GB/T 6974.1 crane terminology - Part 1: General terms

GB/T 6974.5 cranes terminology - Part 5: Bridge and gantry cranes

GB 8918 important uses rope

GB/T 8923 steel surface before painting Rust grades and grade

GB/T 9286 Paints and varnishes Cut test

GB/T 10051.1 ~ 10051.12-2010 lifting hook