Crane rotation control system, control method and crane

A control system and control method technology, applied in the crane slewing control system and the field of cranes, can solve problems such as uncontrollable slewing speed, achieve the effect of improving stability and controllability of operation, and improving controllability

Inactive Publication Date: 2015-04-22
SANY HEAVY IND CO LTD (CN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes a crane slewing control system and control method and the crane to solve the problem of uncontrollable slewing speed caused by external force on the slewing mechanism during the slewing process of the crane

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  • Crane rotation control system, control method and crane

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] The basic idea of ​​the present invention is: in order to solve the problem that the slewing mechanism is uncontrollable when the slewing mechanism is subjected to external force during the slewing process of the crane, the present invention proposes a crane slewing control system. The slewing control system provided by the invention is based on The parameters of the slewing load obtained by the detection are used to adjust the slewing current range, thereby adjusting the slewing current, so that the slewing speed is automatically adjusted, and the stability of the slewing mechanism and the controllability of the operation are improved.

[0026] The preferred embodiment of the present inve...

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Abstract

The invention discloses a crane rotation control system which comprises a detection module, an adjustment module and a control module, wherein the detection module is used for detecting rotation load parameters in a free trackslip state, comprising the magnitude and the direction of a rotation load torque; the adjustment module is used for pre-storing a first functional relation between the rotation load parameters and a rotation current range, acquiring the rotation current range corresponding to the rotation load parameters according to the first functional relation and adjusting the rotation current range; and the control module is used for regulating rotation current in the adjusted rotation current range according to the opening of a rotation handle and controlling a rotation mechanism to rotate under the action of the rotation current corresponding to the opening of the rotation handle. According to the control system, the rotation current range is adjusted according to a rotation load obtained by detecting in the free trackslip state, so that the rotation current can be adjusted according to the opening of the rotation handle to ensure that the rotation speed is automatically adjusted so as to improve the stability and the operation controllability of the rotation mechanism. The invention also provides a crane rotation control method and a crane.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a crane slewing control system and control method and a crane. Background technique [0002] The slewing mechanism of the crane generally includes a hydraulic pump, a slewing motor, a slewing reducer, a slewing support, etc. The operator controls the slewing mechanism through the slewing handle. The size of the pump controls the displacement of the pump, and the size of the displacement of the pump determines the rotation speed, so the rotation speed can be controlled by adjusting the opening of the handle. [0003] However, when the slewing mechanism is subjected to an external force, the slewing speed may become uncontrollable. For example, when the crawler crane is hoisting in wind power, due to the high wind speed of the wind farm, the crawler crane is affected by the wind load, which will affect the slewing speed. When the wind load direction is consistent with the slew...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/18
Inventor 韩晓东汪云峰顾海军
Owner SANY HEAVY IND CO LTD (CN)
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