Crane, and revolution controlling system and method thereof

A control method and technology of a control system are applied in the slewing control of cranes and the field of cranes, which can solve problems such as user dissatisfaction and vehicle shaking, and achieve the effect of improving controllability.

Active Publication Date: 2011-08-10
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hook and the boom are flexibly connected by wire ropes, when the slewing movement stops suddenly, the hook will continue to move forward due to inertia. At this time, the hook will swing like a single pendulum, driving the boom and the turntable to move back and forth, giving the operator The external phenomenon that caused the whole vehicle to shake caused user dissatisfaction

Method used

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  • Crane, and revolution controlling system and method thereof
  • Crane, and revolution controlling system and method thereof
  • Crane, and revolution controlling system and method thereof

Examples

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Embodiment Construction

[0033] The core of the present invention is to provide a slewing control method of a crane, which can automatically adjust the slewing speed according to the change of load parameters. Another core of the present invention is to provide a slewing control system and a crane including the above-mentioned slewing control system.

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Please refer to figure 1 , figure 1 It is a control flow chart of the crane slewing control method provided by the present invention.

[0036] The slewing control method of the crane provided by the present invention is used to control the slewing speed according to the change of the load state, and the method is carried out according to the following steps:

[0037] Step S101, storing in...

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PUM

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Abstract

The invention discloses a revolution controlling method for a crane. The method is characterized by comprising the following steps of: 101, pre-storing a corresponding functional relation between load parameters and revolution currents; 102, acquiring a current load parameter; and 103, obtaining a revolution current value corresponding to the acquired current load parameter according to the functional relation and controlling the output of the revolution current. In the revolution controlling method provided by the invention, load-related parameters are designed into a revolution controlling system, so that different revolution currents can be output under control according to different load parameters, a revolution speed adapting to a loading condition is obtained and revolution control is automatically adjusted according to the change of the loading condition by using the revolution controlling system. The invention also provides the revolution controlling system and a crane comprising the same.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a method for controlling the slewing of a crane. The invention also relates to a slewing control system of a crane and a crane including the slewing control system. Background technique [0002] The slewing system of a crane usually includes a hydraulic pump, a slewing motor, a slewing reducer, and a slewing support. The hydraulic pump drives the slewing motor to rotate, the slewing motor drives the slewing reducer, and then drives the external or internal teeth of the slewing support through the pinion of the slewing reducer. Thereby realize that the turntable drives the rotation of the whole boarding car. [0003] In order to realize the automation of the slewing operation, the electric proportional control is adopted to control the slewing to realize the combination of electro-hydraulic. In order to meet the stability of the rotation, it is necessary to adjust ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/22
Inventor 单增海刘邦才王清送
Owner XUZHOU HEAVY MASCH CO LTD
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