Device, system and method for positioning control of movement mechanism and engineering machinery

A motion mechanism and positioning control technology, applied in the direction of using feedback control, etc., can solve problems such as inability to accurately position the motion mechanism, achieve high positioning accuracy, and prevent damage

Active Publication Date: 2012-08-01
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a positioning control device, system, method and engineering machinery of a ki

Method used

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  • Device, system and method for positioning control of movement mechanism and engineering machinery
  • Device, system and method for positioning control of movement mechanism and engineering machinery
  • Device, system and method for positioning control of movement mechanism and engineering machinery

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[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in a variety of different ways defined and covered by the claims.

[0023] As a first aspect of the present invention, a positioning control device for a movement mechanism is provided. Such as figure 2 As shown, the positioning control device includes: a control unit (such as a microcontroller, a PLC controller, etc.), which acquires the current movement position of the movement mechanism and a first signal for instructing the movement mechanism to move to the target position; when the current movement position is When the difference between the target positions is greater than the set value, the control unit controls the movement mechanism to move at the first speed; otherwise, the control unit controls the movement mechanism to move at a second speed less than the first speed, and when the control unit recei...

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Abstract

The invention provides a device, a system and a method for positioning control of a movement mechanism and engineering machinery. The positioning control device comprises a control unit which is used for acquiring current movement position of the movement mechanism and indicating a first signal of the movement mechanism moving to a target position. When a difference value between the current movement position and the target position is larger than a set value, the control unit controls the movement mechanism to move at a first speed, otherwise, the control unit controls the movement mechanism to move at a second speed lower than the first speed, and the control unit controls the movement mechanism to stop when receiving the first signal. A real-time position detection position is used for detecting current position of the movement mechanism in real time, the movement mechanism can be controlled to move to the target position at the lower second speed and finally positioned through the first signal sent out by a target position detecting unit, higher positioning precision can be achieved, and mechanical parts or hydraulic parts of the engineering machinery can be protected from damage.

Description

technical field [0001] The present invention relates to the field of construction machinery, and more specifically, to a positioning control device, system, method and construction machinery of a motion mechanism. Background technique [0002] Various kinematic mechanisms are used in construction machinery. These kinematic mechanisms can perform linear motion or curved motion. When in use, the motion of the kinematic mechanism needs to be controlled and positioned. For example, in cranes, pump trucks, high-altitude vehicles, high-altitude fire trucks and other construction machinery with slewing mechanisms, after the work is completed, the arm can only be retracted after the boom is centered by the slewing mechanism. This is because the boom must be rotated to the same direction as the central axis of the chassis before it can be put down, otherwise the mechanical parts may be damaged, and even serious safety accidents may be caused. [0003] figure 1 A schematic diagram o...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 黎明和马钰熊忆罗建利
Owner ZOOMLION HEAVY IND CO LTD
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