Crane lifting hook falling speed regulation device and control system thereof

Abstract

The invention discloses a crane lifting hook falling speed regulation device and a control system thereof and relates to the technical field of crane lifting. The crane lifting hook falling speed regulation device comprises a moving trolley which slides on a crane beam in a matching manner; a lifting hook is connected to the lower side of the moving trolley through a steel wire rope in a sliding manner. The control system comprises a crane electronic scale, a speed sensor, a Zigbee router and a servo motor. For the crane lifting hook falling speed regulation device, by providing the moving trolley with a two-layer frame structure, a lifting hook with the crane electronic scale, the speed sensor and wireless communication equipment is connected to the lower side of the moving trolley through the steel wire rope in the sliding manner, and a hoister motor, the servo motor and a contracting brake are controlled to adopt corresponding execution movements by transmitting the weight of dispatching goods and lifting hook speed information below the lifting hook to a main PLC in a control chamber for calculation; and the crane lifting hook falling speed is uniform, the conditions of disordered ropes and damages on the steel wire rope difficultly occur, and the working efficiency of the lifting hook is improved.

Description

technical field [0001] The invention belongs to the technical field of crane lifting, and in particular relates to a crane hook drop speed adjusting device and a control system thereof. Background technique [0002] A crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range, also known as a crane. In order to improve work efficiency, cranes generally have the function of free-falling hooks. The hook-dropping speed of the hook is one of the key performance indicators. Usually, the hook-dropping speed is proportional to the self-weight of the hook and the spreader. The hook-dropping speed It is inversely proportional to the magnification of the wire rope between the winch and the hook. When the crane is unloaded and the hook is dropped, there will be problems of slow hook-down speed and low hook-down efficiency. Slow hook-down speed will lead to rope disorder Affect the life of the wire rope. [00...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a crane hook drop speed adjustment device and its control system. By providing a mobile trolley with a two-layer frame structure, a winch, a limit channel and a brake disc are fixedly installed on the mobile trolley. The rotating roller, wireless communication equipment, PLC controller, and a hook with a crane electronic scale, speed sensor, and wireless communication equipment are slidingly connected to the bottom of the moving trolley through a wire rope. The information is transmitted to the main PLC controller in the control room for calculation in real time, and the hoist motor, servo motor, and brake are controlled in real time to take corresponding execution actions, which solves the problem of uneven hook drop speed of the crane, prone to messy ropes and damaged wire ropes problem occurred

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