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Emergency method for controlling bridge crane failure

An overhead crane and crane technology, applied in the directions of walking overhead cranes, cranes, transportation and packaging, can solve problems such as safety hazards for enterprises and employees, inability to control overhead cranes, accidents, etc., and achieve strong practicability, The effect of curbing the occurrence of major accidents

Inactive Publication Date: 2007-10-31
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the normal operation of the bridge crane, the sudden failure of the operating mechanism or the "failure" phenomenon of the lifting mechanism will cause the driver to panic and be unable to control the bridge crane, causing unnecessary accidents and bringing safety hazards to the enterprise and employees. great harm

Method used

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  • Emergency method for controlling bridge crane failure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Case analysis of main hook brake failure of 150t bridge crane:

[0026] The driver starts the 150t bridge crane, puts the test station over the flat car, lifts the rotor of the 30SH086 turbo generator that has completed the coil embedding, and prepares to put it into the rotor vacuum drying room for baking. , the 150t hook suddenly had a brake failure phenomenon, and the 300,000-kilowatt rotor dropped out of control. If measures are not taken in time, it will pose a great danger to the product and personal safety. The driver first performs several consecutive jog reverse operations , at this time, the jog reverse operation, the lifting mechanism mainly focuses on rising, supplemented by down jogging operation; the running mechanism mainly focuses on jogging operation in the opposite direction, supplemented by jogging operation in the same direction When the operating handle is closed, the failure still exists, indicating that the bridge crane has a mechanical failure. T...

Embodiment 2

[0029] Use the "Case Case of Hook Sliding Accident When a 300t / 80t Bridge Crane Lifts a 125,000-kilowatt Motor" to illustrate: Observe the state of no acceleration when the object falls, and the emergency method of cutting off the power supply can be used to control the "failure" of the bridge crane Accident and control of overhead crane "failure" caused by confirmed "electrical failure".

[0030] The driver of the bridge crane drives the 300t / 80t bridge crane, lifts the stator frame of the steam turbine generator with a capacity of 125,000 kilowatts with a main hook with a rated lifting capacity of 300t, and prepares to pack the finished stator frame .

[0031] The weight of the finished stator frame of a 125,000-kilowatt turbo-generator is 102t. Using a main hook with a rated lifting capacity of 300t to lift the stator frame of a 125,000-kilowatt turbo-generator should be capable of lifting At work, when the bridge crane raised the stator base from its original position to ...

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Abstract

The invention relates to the emergency method for malfunction of the crane. When it happens, reverse operate several times continuously to observe whether there is the occurrence of speed acceleration status to decide the cause of the accident. It is simple, practical, being able to control the development of the imperfect situation.

Description

technical field [0001] The invention relates to an emergency method for controlling the failure of a bridge crane, which can be used in emergency response measures to deal with various sudden accidents of the bridge crane when the controller of the bridge crane loses control of the movement direction of the mechanism. The invention is used to control the development of unfavorable situations and can effectively curb the occurrence of major accidents, belonging to the technical field of bridge cranes. Background technique [0002] During the normal operation of the bridge crane, the sudden failure of the operating mechanism or the "failure" phenomenon of the lifting mechanism will cause the driver to panic and be unable to control the bridge crane, causing unnecessary accidents and bringing safety hazards to the enterprise and employees. Great harm. Contents of the invention [0003] The purpose of the present invention is to provide an emergency method for controlling the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C17/00
Inventor 丛金钴顾臻徐东华陶迄东
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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