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Crane anti-swing system

A crane and anti-sway technology, applied in the direction of load hanging components, transportation and packaging, etc., can solve the problems of heavy maintenance workload, low reliability, and unsatisfactory anti-sway effect, etc., and achieve good anti-sway effect , to reduce the effect of swing

Active Publication Date: 2011-07-13
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this kind of mechanical anti-shake device is very complicated and the reliability is not high, so the workload of maintenance is large, and the anti-shake effect is not very satisfactory.

Method used

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] In the following description, for simplicity of description, when referring to "the included angle of the jib" or "the included angle", it refers to the included angle between the jib of the crane and the horizontal plane. When referring to the "angle of swing of the spreader", it means the maximum angle at which the work object and / or spreader deviates from the vertical line when it swings.

[0018] In actual operation, it is found that the operating object swings relatively large when it is just lifted by the crane sling 2. If the swing of the sling 2 and / or the operating object can be reduced to a certain degree at this time, then in the subsequent process , the swing degree of the spreader 2 and / or the work object will not be very large. Therefore, it is necessary to reduce the swing of the working object to a certain extent at ...

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Abstract

The invention discloses a crane anti-swing system, which is characterized by comprising a force detection device (20) and a controller (10), wherein the force detection device (20) is used for detecting the force magnitude of an arm support (1); and the controller (10) is used for obtaining the force magnitude from the force detection device (20), judging and detecting whether a crane is in a loading state or unloading state according to the force magnitude, and controlling an amplitude varying mechanism (40) to adjust the included angle between the arm support (1) and the horizontal plane according to the judgment result. The crane anti-swing system provided by the invention performs anti-swing control on the lifting appliance when the crane is in a loading state (namely that the object is just lifted) or in an unloading state (namely that the object is just unloaded) in which the lifting appliance experiences the greatest swing degree, thus the system can minimize swing of the lifting appliance during the entire operation of the crane to realize a perfect anti-swing effect.

Description

technical field [0001] The invention relates to a crane anti-sway system, in particular to an automobile crane anti-sway system. Background technique [0002] Cranes (such as truck cranes) have the advantages of flexible maneuvering, convenient operation, and high efficiency. However, in the process of hoisting the operating object by the crane, the swing of the operating object has always been a problem that needs to be solved. [0003] At present, the existing anti-sway technology is to use a mechanical anti-sway device, which includes an anti-sway wire rope, a reel and a torque limiter transmission chain, and a reel with a one-way bearing and a puller. The method consumes the energy of the swing when the working object is hoisted to achieve the purpose of finally eliminating the swing. To control the swing of the spreader, it is necessary to adopt a reasonable wire rope winding method first, so that the hoisting pulley on the jib and the traction pulley on the spreader ...

Claims

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Application Information

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IPC IPC(8): B66C13/06
Inventor 曾杨郑庆华刘涛姚立娟
Owner ZOOMLION HEAVY IND CO LTD
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