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Remote control type hydraulic support electrohydraulic control system

An electro-hydraulic control system and hydraulic support technology, which is applied in the direction of pillars/supports, short-distance communication services, mining equipment, etc., can solve problems such as non-operation, jumping, and unstable operation of infrared receivers, so as to improve stability and reliability effect

Pending Publication Date: 2020-06-19
山东矿机华信智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual application process, due to the influence of working flour and dust, the infrared receiver will often be covered with dust, and even the infrared receiver will enter water, which will cause the infrared receiver to work unstable or even not work, making the signal converter The calculated position is discontinuous, and jumps often occur, resulting in unreliable automatic functions of the hydraulic support and machine
[0006] The above factors directly affect the reliability and stability of the hydraulic support electro-hydraulic control system, and also increase the maintenance cost of the hydraulic support electro-hydraulic control system, which directly affects the use effect of the hydraulic support electro-hydraulic control system and machine automation

Method used

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  • Remote control type hydraulic support electrohydraulic control system
  • Remote control type hydraulic support electrohydraulic control system
  • Remote control type hydraulic support electrohydraulic control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1 to Figure 4 As shown together, a remote-controlled hydraulic support electro-hydraulic control system includes multiple hydraulic supports, a shearer position transmitting device 4, a coupler 5, and a power supply box 6. Each hydraulic support includes a support controller 1 and an electrically connected support. The multifunctional emergency stop switch device 2, the support controller 1 is sealed on the hydraulic support, and the multifunctional emergency stop switch device 2 is independently set.

[0038] The power supply box 6 supplies power to the rack controller 1, the multi-function emergency stop switch device 2 and the coupler 5;

[0039] Wherein the multifunctional emergency stop switch device is provided with an emergency stop switch 20 for emergency stop locking.

[0040] The system also includes at least one bracket remote controller 3, the bracket remote controller 3 is provided with a keyboard for human-computer interaction, the bracket...

Embodiment 2

[0068] Such as Figure 5 As shown, this embodiment is basically the same as Embodiment 1, the difference is:

[0069] The wireless communication adopts ZigBee wireless communication technology, that is, the first wireless communication module, the second wireless communication module and the third wireless communication module are all ZigBee wireless communication modules, and use ZigBee wireless communication to perform wireless distance measurement.

[0070] Zigbee is a 2.4GHz frequency band 250kb / s low-speed, low-power consumption, short-distance (10-75m), low-latency wireless communication technology. Zigbee ranging principle such as Figure 5 As shown, the ranging technology based on RSSI uses the principle that the radio signal decays regularly as the distance increases to measure the distance between nodes. The relationship between the received signal strength RSSI and the transmission distance d is as follows:

[0071] RSSI=-(10×n×lgd+A)

[0072] d=10^((abs(RSSI)-A...

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Abstract

The invention discloses a remote control type hydraulic support electrohydraulic control system, and relates to the field of hydraulic support control. The control system comprises a coal mining machine position transmitting device, a plurality of hydraulic supports and at least one support remote controller, wherein each hydraulic support comprises a support controller sealed on the hydraulic support and an independently arranged multifunctional emergency stop switching device; each multifunctional emergency stop switching device is provided with an emergency stop switch; multifunctional emergency stop switching devices communicate with the coal mining machine position transmitting device wirelessly; a keyboard for man-machine interaction is arranged on each support remote controller; andeach support remote controllers communicates with each multifunctional emergency stop switch device wirelessly. Therefore, the support controllers are prevented from affected by moisture, the performance and the service life of each support controller are guaranteed, and the performance of the emergency stop switches, the keyboards and the like is guaranteed, so that the real-time performance, the stability and the reliability of the whole system are guaranteed.

Description

technical field [0001] The invention relates to the technical field of hydraulic support control in a fully mechanized mining face, in particular to a remote-controlled electro-hydraulic control system for a hydraulic support. Background technique [0002] The hydraulic support electro-hydraulic control system of fully mechanized mining face is the key technology for the automatic control of coal mine fully mechanized mining face, especially for the hydraulic support electro-hydraulic control system of fully mechanized mining face. The working face generally consists of 100-200 hydraulic supports, each A set of support control unit is installed on the hydraulic support. The support control unit is composed of support controllers and sensors. The support controllers are connected to each other through cable connectors. The existing support controllers are equipped with operation keyboards and emergency stop buttons. Display, indicator light, buzzer, driver, etc. [0003] Dur...

Claims

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Application Information

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IPC IPC(8): E21D15/44E21D15/50E21F17/18E21F17/00H04W4/80
CPCE21D15/44E21D15/50E21F17/00E21F17/18H04W4/80
Inventor 赵华涛
Owner 山东矿机华信智能科技有限公司
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