Flow distribution system, device and method for multi-section arm support, and engineering machine equipment

Abstract

The invention provides a flow distribution system for a multi-section arm support. The system comprises an operating device and a control device, wherein the operating device is used for inducing the arm support operating action of a user and generating a corresponding operating command; and the control device is connected to the operating device and used for generating a corresponding control signal according to the operating command from the operating device and derating the control signal. Correspondingly, the invention also provides engineering machine equipment, and a flow distribution device and a flow distribution method for the multi-section arm support. Through the technical scheme, flow is reasonably distributed when the multi-section arm support is operated, and the action of each section of arm support can be operated in a coordinated mode.

Description

technical field [0001] The invention relates to the field of mechanical control, in particular to a flow distribution system, device and method for a multi-section boom, and a construction machinery equipment. Background technique [0002] Due to its large construction range and fast operation speed, the ultra-long boom has become more and more mainstream in the market. As the boom continues to grow, its operation becomes more complex, the safety and reliability requirements are higher, and precise driving and coordinated control are more difficult. The hydraulic system The quality of flow distribution directly affects the accuracy and flexibility of operation. [0003] With the continuous increase of the length of the boom, the size and thrust of the supporting hydraulic cylinder will increase sharply, and the demand for hydraulic flow will also continue to increase. However, due to the limitation of structural space and economic performance, it is impossible to choose the ...

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Problems solved by technology

[0003] With the continuous increase of the length of the boom, the size and thrust of the supporting hydraulic cylinder will increase sharply, and the demand for hydraulic flow will also continue to increase. However, due to the limitation of structural space and economic performance, it is impossible to choose the displacement of the hydraulic pump of the boom system Therefore, when the multi-section booms are linked, the flow provided by the hydraulic pump cannot fully meet the flow demand. In addition, the loads of different booms vary greatly, which will inevitably lead to uncoordinated movements between the booms and affect the accuracy of the entire operation. , increasing the complexity of the operation, how to distribute the flow of each section of the boom after the flow of the hydraulic system is saturated, and to ensure the coordination of the overall action has become a difficult point of control

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