Method, device and system for controlling engineering mechanical arm frame

A technology of engineering machinery and jib, which is applied in the field of engineering machinery jib control, can solve the problems of limited vibration reduction effect, difficult to guarantee, and poor real-time performance, and achieve the effects of improving real-time performance, small transmission delay, and improving vibration reduction effect

Active Publication Date: 2012-12-19
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology

Therefore, this method is difficult to guarantee that under all working conditions, when the vibration suppression action of the driving boom cylinder is transmitted to the end, a periodic vibration with the same amplitude as the existing vibration and a phase difference of ha...

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  • Method, device and system for controlling engineering mechanical arm frame
  • Method, device and system for controlling engineering mechanical arm frame
  • Method, device and system for controlling engineering mechanical arm frame

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Embodiment Construction

[0029] In the embodiment of the present invention, the vibration suppression treatment can be performed on one, two, or multiple booms that have not been expanded and retracted, specifically including: obtaining the current stroke of the piston in the boom cylinder corresponding to the boom in real time , and then determine the control parameters sent to the operating device according to the current stroke and the initial stroke of the piston, so that the operating device is driven to move according to the control parameters, and the displacement of the boom due to vibration is compensated. In this way, the vibration of the section of the boom is suppressed through the control of the corresponding boom oil cylinder, the transmission delay of the vibration suppression force is small, and the real-time performance is good. At the same time, multi-section booms can be simultaneously suppressed, and there is no problem that the transmission ratio of each boom cylinder to the end is...

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Abstract

The invention discloses a method, a device and a system for controlling an engineering mechanical arm frame, which is used for improving the vibration reduction effect of the engineering mechanical arm frame. The method comprises the following steps that: when the vibration state of the engineering mechanical arm frame is determined, the following actions are performed on at least one arm frame: the current stroke of a piston in an arm frame oil cylinder which corresponds to the arm frame is obtained; the difference which is obtained by subtracting the current stroke from the initial stroke of the piston is determined as a stroke difference, and control parameters which correspond to the stroke difference are determined; and the control parameters are sent to an operation device, the operation device drives the piston to correspondingly move, so the arm frame displacement which is generated by vibration is compensated.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a method, device and system for controlling an engineering machinery boom. Background technique [0002] Many construction machinery, such as concrete pump trucks, truck cranes, etc., are equipped with booms, and the booms can be extended and retracted under the drive of the boom cylinder. swivel. [0003] During the operation of construction machinery, it will cause vibration of the boom. For example: during the process of pumping concrete, the concrete pump truck will vibrate the whole machine due to hydraulic shock, and the vibration of the boom caused by this hydraulic shock will be more obvious. After the truck crane lifts the object, the vibration of the boom will also be caused by the swing of the object. Moreover, even in the non-working state of the construction machinery, due to the inertia of the boom, large vibrations will be generated when the boom moves. The v...

Claims

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Application Information

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IPC IPC(8): E04G21/02B66C23/64
Inventor 易伟春尹君李葵芳张虎
Owner ZOOMLION HEAVY IND CO LTD
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