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Safety control method, device and system for execution actions of crawling crane

A technology of crawler crane and execution action, which is applied in the field of safety control of crawler crane execution action, which can solve the problems of not considering impact, shaking, and occupying the working time of the crane, so as to achieve the effect of improving the safety level and control effect

Active Publication Date: 2015-06-24
XCMG CONSTR MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But almost no consideration is given to the shock, vibration and other issues when the required power is met, and this situation occupies most of the working time of the crane, generally relying on the experience of the operator to avoid shock and vibration

Method used

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  • Safety control method, device and system for execution actions of crawling crane
  • Safety control method, device and system for execution actions of crawling crane
  • Safety control method, device and system for execution actions of crawling crane

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Embodiment Construction

[0026] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] figure 1 It is a schematic diagram of an embodiment of a safety control method for performing actions of a crawler crane according to the present invention.

[0028] Step 101, determine the maximum allowable acceleration value of the crawler crane's actions, including: lifting, luff...

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Abstract

The invention discloses a safety control method, device and system for execution actions of a crawling crane. The safety control method comprises the following steps of: determining a maximum allowable value of an accelerated speed of the execution actions of the crawling crane, wherein the actions comprise ascending, amplitude variation, rotation and walking; controlling maximum current which is circularly output by a single program when the actions are executed according to the maximum allowable value of the accelerated speed so that the accelerated speed of the actions is not greater than the maximum allowable value. According to the method, device and system disclosed by the invention, the accelerated speed control is carried out aiming at the ascending, amplitude variation, rotation and walking actions of the crawling crane, so that not only can the actions of the maximum allowable value of the accelerated speed be limited, but also the accelerated speed which is less than the maximum value is effectively controlled at the same time, and furthermore, the stable change of the actions is realized, and the safety grade and the control effect when a whole car is operated are improved comprehensively.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a safety control method, device and system for performing actions of crawler cranes. Background technique [0002] At present, the execution actions of crawler cranes with a medium tonnage and above in China generally adopt an electrical control method, that is, the hydraulic pump, hydraulic valve, and solenoid valve are controlled by the controller. Considering the working environment of the crawler crane, the operator's operating habits, and various emergencies (such as misoperation, accidental power failure, etc.), the electrical control takes on more responsibilities and directly determines the stability of the entire vehicle. safety, security and maneuverability. [0003] For the above control objectives, domestic crawler cranes generally adopt power limit control, inching control, constant power control, etc. The control idea is that the power required by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/44B66C13/20B66C13/16
Inventor 孙丽张东李香伟张红松孟进军陈国亮
Owner XCMG CONSTR MACHINERY
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