Support controller for electrohydraulic control system

Abstract

The invention relates to a support controller for an electrohydraulic control system. The support controller is mainly characterized by comprising an MCU processing unit, a wireless transceiving unit and two paths of power supply systems. The MCU processing unit is respectively connected with the wireless transceiving unit, two CAN transceivers, a human-machine interaction unit, a data acquisition unit, an infrared receiver and a magnetic valve driver, and the magnetic valve driver is connected with a magnetic pilot valve; one path of power supply system is connected with and supplies power to the MCU processing unit, the wireless transceiving unit, the two CAN transceivers and the human-machine interaction unit; the other path of power supply system is connected with and supplies power to the infrared receiver, the data acquisition unit, the magnetic valve driver and the magnetic pilot valve. The support controller for the electrohydraulic control system is reasonable in design, data transmission is carried out in a wireless transmission mode and in a manner that the two paths of power supply systems are adopted, automatic control function demands of a hydraulic support are met, the resource utilization ratio of the support controller is improved, the use of auxiliary equipment is reduced, and failure rates are lowered.

Description

technical field [0001] The invention belongs to the technical field of electro-hydraulic control, in particular to a bracket controller for an electro-hydraulic control system. Background technique [0002] In fully mechanized underground mining, in order to improve production efficiency and meet the needs of operational safety, the action of the support should be adapted to the equipment capacity of the working face and the efficiency of the production process, so as to ensure that the coal shearer can quickly advance and cut coal. It is not only necessary to improve the support control operation To increase the degree of automation, the convenience, reliability and safety of control must be further improved. The electro-hydraulic control will speed up the action speed of the bracket, improve the degree of automation, reduce the workload of operation, improve efficiency and enhance safety. [0003] The existing mine hydraulic support electro-hydraulic control system genera...

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Problems solved by technology

[0003] The existing mine hydraulic support electro-hydraulic control system generally uses a single power supply to supply power to the control unit and external equipment such as solenoid valves and sensors. The problem with the design of the single power supply is: if the power supply system Failure of external devices such as solenoid valves or sensors will seriously affect the normal operation of the control unit; at the same time, the single-channel power supply design limits the load capacity of the power module

[0004] In addition, most of the existing mine hydraulic support electro-hydraulic control systems use a mining hydraulic support controller composed of a single-line CAN bus. The CAN communication protocol standard is not set for the coal mining industry. The existing problems are: CAN The bus usually has a limit on the maximum number of nodes, and the single-line CAN bus has a slow communication rate and poor anti-interference ability

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