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

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...

AI Technical Summary

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 kinematic mechanism, so as to solve the problem that the motion of the kinematic mechanism cannot be accurately positioned in the prior art

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