Path control system used for hydraulic digger operating device and its method

A technology for hydraulic excavators and working devices, which is applied in control/adjustment systems, position/direction control, non-electric variable control and other directions, can solve the problems of difficulty in setting parameters, PID parameters are not easy to set, and control effects cannot be obtained. The effect of work cycle, improving work efficiency and work quality

Inactive Publication Date: 2005-08-10
GUANGXI LIUGONG MASCH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 2. Some of the existing control devices fail to take into account the impact of changes in the hydraulic excavator's speed, load, and attitude of the working device on the control performance, resulting in poor stability and control accuracy, which affects the accuracy of the excavator's working device.
[0004] 3. Most of the commonly used common position servo control methods use a typical PID algorithm, but for special objects such as hydraulic excavator working devices, PID parameters are not easy to set, and often cannot obtain good control effects, and due to external load changes The parameters are not easy to adjust, the working conditions are complicated, and the coupling relationship between the components of the working device causes the control performance of the PID regulator to deteriorate

Method used

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  • Path control system used for hydraulic digger operating device and its method
  • Path control system used for hydraulic digger operating device and its method
  • Path control system used for hydraulic digger operating device and its method

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Embodiment Construction

[0040] The control system of the present invention includes boom hydraulic cylinder 208, arm hydraulic cylinder 209, bucket hydraulic cylinder 210, main control valve 207, electromagnetic proportional pilot valve 205, gear pump 211, overflow valve 206, oil filter 212, Boom 104, stick 106, bucket 108, wherein:

[0041] 1. A boom angle detection mechanism 103 and a stick angle detection mechanism 105 are respectively provided at the hinge joints of the boom 104 and the working device 102 , the hinge joints of the boom 104 and the stick 106 , and the joints of the stick 106 and the bucket 108 , bucket angle detection mechanism 107;

[0042] 2. It has a DSP controller 201, which is used to receive the angle signals measured by the boom angle detection mechanism 103, the arm angle detection mechanism 105, and the bucket angle detection mechanism 107 sent through A / D data conversion, and the boom hydraulic cylinder 208 pressure, arm hydraulic cylinder 209 pressure, bucket hydraulic...

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Abstract

The present invention relates to a track control system for hydraulic excavator working equipment and its method. Said system includes the following main components: DSP, moving arm angle detection mechanism, bucket arm angle detection mechanism, bucket angle detection mechanism, hydraulic cylinder, engine, working equipment and its driving cylinder and CAN bus. Said invention also provides the concrete steps of said control method. It can implement automatic control of hydraulic excavator working equipment, and can accurately and stably control the position and attitute of said hydraulic excavator working equipment so as to raise its working efficiency.

Description

technical field [0001] The invention relates to a trajectory control system and method for a working device of a hydraulic excavator. Background technique [0002] 1. Hydraulic excavators are mainly used in earthwork construction and other occasions. The driver needs to have a certain degree of proficiency in manipulating the working device of the hydraulic excavator. In the process of straight line leveling and slope excavation, it often depends on the driver's operating experience. Complicated actions increase the labor intensity of the driver and reduce labor productivity. The use of automatic manipulation can greatly improve the operation efficiency and operation quality, and better complete the operation tasks. [0003] 2. Some existing control devices fail to take into account the influence of changes in the hydraulic excavator's speed, load, and attitude of the working device on the control performance, resulting in poor stability and control accuracy, and affecting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/22G05D3/00
Inventor 戴群亮邵以东唐建国卢书湘
Owner GUANGXI LIUGONG MASCH CO LTD
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