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Control method, control system and controller for folding arm support and concrete distribution machinery

A control method and technology for a control system, applied in the field of construction machinery, can solve the problems of bending and even breaking of boom sections.

Active Publication Date: 2014-05-21
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, as the movement speed of the jib increases, the risk of bending or even breaking the jib section also increases.

Method used

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  • Control method, control system and controller for folding arm support and concrete distribution machinery
  • Control method, control system and controller for folding arm support and concrete distribution machinery
  • Control method, control system and controller for folding arm support and concrete distribution machinery

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Experimental program
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Embodiment Construction

[0045] The purpose of the present invention is to provide a control method for a folding boom, so that the end of each boom section driven by the boom oil cylinder moves at a speed not greater than a predetermined speed during the unfolding or folding process of the folding boom, which greatly improves the operating efficiency of the boom. safety performance. In addition, the present invention also aims to provide a controller for the folding boom, a control system for the folding boom, and a concrete placing machine including the control system.

[0046] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Please refer to figure 2 , figure 2 It is a flow chart of a specific embodiment of the control method of the folding boom provided by the present invention.

[0048...

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PUM

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Abstract

Disclosed are a collapsible boom control method, controller and control system, and concrete spreading machinery. The collapsible boom control method comprises the following steps: acquiring the current travel L2 of a predetermined boom oil cylinder of the collapsible boom, and acquiring the maximum distance r2 from each boom section end to a root articulation point of a predetermined boom section between the root articulation point of the predetermined boom section driven by the predetermined boom oil cylinder and the end of the boom (S11); according to the current travel L2 and the maximum distance r2, calculating the required flow rate Q2 for the predetermined boom oil cylinder when the boom section end with the maximum distance r2 is made to move at a predetermined speed nu0 under the drive of the predetermined boom oil cylinder (S12); and supplying hydraulic oil to the predetermined boom oil cylinder at a flow rate less than or equal to the flow rate Q2 (S13). The control method can improve the safety of the collapsible boom when extending or retracting.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a control method for a folding arm frame of a concrete distributing machine. In addition, the present invention also relates to a controller, a control system of the above-mentioned folding arm frame, and a concrete placing machine including the above-mentioned control system of the folding arm frame. Background technique [0002] Concrete pump truck is a commonly used concrete distributing machine, generally including traveling device, pumping device and folding boom. The walking device is mainly used for the transfer of the working site of the concrete pumping equipment; the pumping device is used to pump the concrete into the conveying pipe of the folding boom, and the concrete is conveyed to the required height through the conveying pipe of the folding boom; the control system controls The extend and retract motion of each boom places the end of the boom in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
CPCE04G21/0445
Inventor 黄勃徐鑫尹腾飞
Owner SANY AUTOMOBILE MFG CO LTD