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Anti-swing control method of industrial crane

A control method and anti-sway technology, applied in the directions of load hanging components, transportation and packaging, can solve problems such as affecting safe operation and reducing work efficiency, and achieve simple operation, less hoisting and moving swing, and simple control. Effect

Inactive Publication Date: 2015-08-26
廖章威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such a problem, the efficiency of the work is reduced in the operation of the crane, and it still affects the safe operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Through a practical case, an anti-sway server is installed on an industrial bridge crane, and a 600-pulse incremental encoder is installed on the hoist to calculate the real-time swing length of the crane and feed back to the anti-sway server. The cart adopts An inverter with PROFIBUS-DP communication function is used for drive control, and the trolley also uses an inverter with PROFIBUS-DP function for drive control. Communication is used to control the running speed of the cart and trolley, and the effect presented is perfect, and the swing range can be controlled within 3-5 degrees.

[0019] The calculation formula of pendulum length of the present invention is as follows:

[0020] l = g (τ / 4π) 2

[0021] τ= pendulum period (unit: second / S.)

[0022] π= 3.141592654

[0023] g = acceleration due to gravity (9.81 ms-2)

[0024] l = length of lifting wire rope (unit: m)

[0025] Since the cranes are installed in different geographical locations, it is neces...

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PUM

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Abstract

The invention discloses an anti-swing control method of an industrial crane. An encoder, a frequency converter and a swing preventing system are adopted to control the coordination work of all driving motors; a corner parameter, returned by the encoder, of a rotating shaft on an electric block is analyzed; the swing amplitude of a lifting object is analyzed; and the acceleration and the deceleration of large and small cars are synchronously controlled, so that the swing of the industrial crane in the lifting and transporting process is prevented. The method is simple in control, convenient to operate, small in crane swing amplitude and small in object lifting swing amplitude.

Description

technical field [0001] The invention relates to the field of industrial cranes, in particular to an anti-sway control method for industrial cranes. Background technique [0002] Industrial cranes are hoisting equipment that are horizontally placed over workshops, warehouses and stockyards for material lifting. Because its two ends are located on tall concrete pillars or metal supports, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the tracks laid on the elevated sides on both sides, which can make full use of the space under the bridge frame to lift materials without being hindered by ground equipment. It is a kind of hoisting machinery with the widest range and the largest number. [0003] As for the operation of the crane, it can be known that the load of the crane will form a certain swing state during the process of lifting objects and moving acceleration and deceleration. For such a problem, the efficiency of the work is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/06B66C13/46
CPCB66C13/063B66C13/46
Inventor 廖章威
Owner 廖章威
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