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Arm support control method and device and pump truck

A control method and boom technology, applied in the field of control, can solve problems such as difficulty in improving the structure, and achieve the effects of maintaining continuity, promoting convenience and improving safety.

Active Publication Date: 2013-10-16
河北雷萨重型工程机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this problem is difficult to improve structurally and hydraulically. In the concrete boom pump truck industry, this phenomenon is very common and has not been well resolved.

Method used

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  • Arm support control method and device and pump truck
  • Arm support control method and device and pump truck
  • Arm support control method and device and pump truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] figure 2 Shown is a flow chart of a boom control method described in this embodiment, including the following steps:

[0042] S110: Determine whether the boom is in retracted state: if yes, go to step S120; if not, go to step S140;

[0043] S120: Determine whether the rotation angle of the boom is within the set range: if yes, go to step S130; if not, go to step S140;

[0044] S130: while deploying the first section of the boom, automatically withdraw the second section of the boom, and then turn to step S140;

[0045] S140: The first boom section and the second boom section of the boom work normally according to the control command, and the method ends.

[0046] The present invention automatically controls the retraction of the second section of the boom when the boom sinks, preventing uncontrolled movements due to the sinking of the boom,...

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Abstract

The invention discloses an arm support control method and device. The control method comprises the steps of judging whether an arm support is in a retracted state: if the arm support is not in the retracted state, enabling a first segment arm and a second segment arm of the arm support to work normally according to control commands and ending the method; if the arm support is in the retracted state, judging whether a rotation angle of the arm support is within a set range: if the rotation angle of the arm support is not within the set range, enabling the first segment arm and the second segment arm of the arm support to work normally according to the control commands and ending the method; if the rotation angle of the arm support is within the set range, automatically retracting the second segment arm of the arm support while unfolding the first segment arm of the arm support, and then enabling the first segment arm and the second segment arm to work normally according to the control commands. According to the arm support control method and device, danger caused by automatic sinking of the second segment arm is avoided, and safety and stability and the like of a whole vehicle body are improved.

Description

technical field [0001] The invention relates to the technical field of control, in particular to a boom control method and device, and a pump truck. Background technique [0002] The concrete delivery pump truck is a special vehicle that installs both the concrete pump and the hydraulic folding boom on the heavy-duty truck chassis, and lays the delivery pipeline along the boom, and finally outputs the concrete through the end hose. like figure 1 As shown, it consists of two parts, the chassis and the upper body. The chassis mainly provides power and the carrier function, and the upper body belongs to the operating mechanism. [0003] Wherein, the distributing system 102 includes two parts, the outrigger mechanism and the arm frame mechanism, which are used as a medium for supporting and conveying concrete, and belong to the structural foundation of the concrete pump truck; [0004] The hydraulic system 103 and the electronic control system 104 belong to the core system of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/04
Inventor 罗玉良王泽堂胡智杜忌韩术亭李勋文李海波张爱武
Owner 河北雷萨重型工程机械有限责任公司
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