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Method for controlling movement locus of hook of crane

A technology of movement trajectory and crane, which is applied in the field of controlling the movement trajectory of the crane's hook, can solve the problems of insufficient accuracy and low lifting efficiency, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2012-10-10
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the defects of low lifting efficiency and insufficient accuracy in the existing lifting equipment, the present invention proposes a new method for controlling the movement track of the crane's hook

Method used

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  • Method for controlling movement locus of hook of crane
  • Method for controlling movement locus of hook of crane
  • Method for controlling movement locus of hook of crane

Examples

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Comparison scheme
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Embodiment Construction

[0029] The present invention proposes various methods for controlling the motion track of the hook of the crane for the general crane structure. In a general crane structure, there is no limit to the number of sections of the arm of the crane, which sections are telescopic, and which sections are rotatable, so the method proposed by the present invention is applicable to cranes with any number of sections.

[0030]In the following description, an exemplary crane with a turntable and two jibs will be described, wherein the turntable is connected to the chassis through a slewing bearing and can rotate in the horizontal plane, the first jib is a folding jib, and the second jib The arm is a telescoping arm. It should be noted that although the present invention only provides a description for this exemplary crane, those skilled in the art can obviously extend it to the situation of any number of sections, arbitrary rotation and telescopic requirements according to the content and ...

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PUM

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Abstract

The invention provides a method for controlling a movement locus of a hook of a crane. The method comprises the following steps of: acquiring an included angle between each arm and the horizontal plane and the length of each telescopic arm, setting parameters such as rotation angular velocity of each arm and the stretching speed of each telescopic arm and the like so as to acquire an inertia index of each arm; and according to the determined inertia index, judging whether to drive each hydraulic cylinder so as to drive the hook to move according to the angular velocity and stretching speed ornot. By the method for controlling the movement locus of the hook of the crane, which is provided by the invention, the influence of the movement of the hook on the inertia of each arm can be mutually eliminated, so that the precision of controlling the movement locus of the hook by the crank can be improved, and the efficiency of the crane can be improved.

Description

technical field [0001] The present invention relates to a method for controlling the motion trajectory of the hook of a crane. Background technique [0002] Lifting equipment plays a very important role in today's social life, and it is widely used in construction sites, ports, metallurgical mines and other occasions that require large-scale loading, unloading and handling of goods or ores. In order to adapt to the needs of different working conditions, the lifting equipment is constantly changing. How to improve the performance of the lifting equipment and solve the problems encountered in the process of using the lifting equipment is one of the long-term research topics in the field of construction machinery. one. [0003] Today, lifting equipment is mostly driven by hydraulic pressure, and each hydraulic cylinder can control a degree of freedom (telescopic or pitch) of each boom section. The operator controls each hydraulic cylinder separately through a remote control or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/20
CPCB66C23/54B66C23/08
Inventor 段卓
Owner ZOOMLION HEAVY IND CO LTD