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Dual-winding synchronous control system and dual-winding synchronous control method for crane

A synchronous control and crane technology, applied in the direction of cranes, load hanging components, transportation and packaging, etc., can solve the problems of demanding requirements and complicated actual operation, achieve simple and reliable control, solve stability and safety, and have good application prospects Effect

Active Publication Date: 2015-05-13
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the present invention is that the existing cranes use a winch plus a counter or an absolute encoder to control the synchronization of the double winches, the requirements are relatively strict, and the actual operation is relatively complicated.

Method used

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  • Dual-winding synchronous control system and dual-winding synchronous control method for crane
  • Dual-winding synchronous control system and dual-winding synchronous control method for crane
  • Dual-winding synchronous control system and dual-winding synchronous control method for crane

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, a double winch synchronous control system for a crane includes two laser range finders A and B symmetrically arranged on both sides of the crane arm head, the probes of each laser range finder are kept vertically downward, and the crane The arm head is connected to the lower hook 5 through two sets of independent speed-adjustable winches 1 and 2. The distance measuring baffles 3 and 4 extend from both sides of the hook 5, and each distance measuring baffle is located on the corresponding side. Directly below the laser range finder, the two laser range finders respectively measure the height of the corresponding side winch from the distance measuring baffle, and transmit the height signal to the controller, which controls the corresponding side through the winch speed regulating mechanism. The speed of the hoist, the laser range finder...

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Abstract

The invention discloses a dual-winding synchronous control system and a dual-winding synchronous control method for a crane. The system comprises two laser distance measuring instruments which are symmetrically arranged at the two sides of a crane boom head, wherein a probe of each laser distance measuring instrument is kept vertically downward; the crane boom head is connected with a hanger below through two groups of independent speed-adjustable windings; distance measuring baffle plates extend out from the two sides of the hanger; each distance measuring baffle plate is positioned below the laser distance measuring instrument at the corresponding side; the two laser distance measuring instruments are respectively used for measuring height from the winding at the corresponding side to the distance measuring baffle plate at the side and transmitting a height signal to a controller; the controller is used for controlling the speed of the corresponding winding through a winding speed regulating mechanism. Through the laser distance measuring instruments at the two sides of head of a cantilever crane, height difference between pulleys at the two sides of hanger is obtained; by regulating the rotation speed of the windings, the height difference is reduced to guarantee that the dual windings are synchronous, so that the stability problem and the safety problem of dual-winding synchronous operation can be solved, the control is simple and reliable, and the application prospect is good.

Description

technical field [0001] The invention relates to the technical field of crane control, in particular to a double hoist synchronous control system and method for a crane. Background technique [0002] With the advancement of technological development and infrastructure construction, the traditional single-winch rope-threaded hoisting can no longer meet the requirements. The equipment needs multiple winches to assist hoisting. Affected by various factors such as the hydraulic system, the difference in structural parts, and friction, it is difficult to ensure that multiple winches can be released within a unit time by using the traditional equal variable control (inputting the same control signal). Or take back the steel wire rope of the same length, the difference in the amount of rope output / retraction will cause the hook to tilt, and the wire rope and pulley block will wear and tear, causing accidents. [0003] Existing cranes use a winch plus a counter to control the synchr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/48
CPCB66C13/48B66C2700/08
Inventor 周嘉鹏李香伟张红松杨继海刘向超
Owner XCMG CONSTR MACHINERY
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