Remote control method and device of thin seam working surface coal mining machine

A technology of remote control device and coal mining machine, which is applied in the direction of mining equipment, comprehensive factory control, comprehensive factory control, etc., can solve problems such as unsafety and high labor intensity, and achieve reliable control, accurate positioning of segments, flexible and convenient segments Effect

Inactive Publication Date: 2010-10-27
兖矿能源集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the remote control of the shearer in the thin coal seam working face requires long-distance crawling, high labor intensity, and unsafety, the present invention provides...

Method used

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  • Remote control method and device of thin seam working surface coal mining machine
  • Remote control method and device of thin seam working surface coal mining machine
  • Remote control method and device of thin seam working surface coal mining machine

Examples

Experimental program
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Effect test

Embodiment 1

[0034] exist figure 2 Shown in the thin coal seam working face coal mining machine remote control method and device of the present invention, that is, the first implementation of automatic segment remote control. The positioning device adopts a hollow shaft photoelectric encoder, the coal mining machine control center, that is, the main control unit of the coal mining machine, adopts a programmable controller, and the signal conversion circuit adopts a conversion controller.

[0035] The main vibrations 1 to 8 of the radio remote control receiver, that is, the eight main vibration frequencies, are switched by the eight output control terminals of the single-chip microcomputer used as a decoder. The two receivers of the shearer respectively receive the remote control signals of the two transmitters of the same transmitter group, and control the left and right drums of the shearer respectively.

[0036]Radio remote control transmitter groups 1 to 8 have eight carrier frequenci...

Embodiment 2

[0047] exist image 3 Another implementation of the automatic segmented remote control of the coal mining machine in the thin coal seam working face is shown in .

[0048] The radio remote control receiver adopts a multi-channel receiver, and realizes segmented remote control by controlling the switching of receiving channels. Although the circuit is not as simple as switching the crystal oscillator and changing the frequency of the main oscillator. But it is also one of the feasible options.

[0049] Switching control of the receiver channel: The segmented coded signals sent by two sets of output terminals of the PLC, three in each group, are transmitted to the radio remote control receiver through the multi-core cable in the form of parallel coded signals, and then passed through the three / The eight-decoder is decoded, and the eight output terminals of the decoder are output to the single-chip microcomputer, and then the eight output terminals of the single-chip microcomp...

Embodiment 3

[0051] exist Figure 5 , 7 Shows the third embodiment of the automatic subsection remote control of the coal mining machine in the thin coal seam working face.

[0052] The coal mining machine control center adopts the industrial control computer, that is, the industrial computer IPC. The positioning device is still based on the hollow shaft photoelectric encoder BM 1 For example, its output terminal A, B terminal and the counting module A of the industrial computer CT The input terminal IN 0 , IN 1 connect. Industrial computer output module A OUT The output terminal R 01 ~R 03 , R 04 ~R 06 Output two sets of segment coded signals respectively. COM 0 The +12V and GND terminals are the DC power supply terminal and the ground terminal. AC220V is the AC power supply terminal of the industrial computer IPC.

[0053] Photoelectric encoder BM 1 The two-phase square wave signal sent by the output terminals A and B passes through the counting module A of the IPC CT The...

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PUM

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Abstract

The invention relates to a remote control method of a thin seam working surface coal mining machine. automatic segmentation remote control is used in the remote control method and comprises the following steps of: segmenting a working surface, and inputting segment parameters into a coal mining machine control center so that the coal mining machine only receives a remote control command of a radio transmitter, which is set in the segment, and increasing a positioning device in a remote control device comprising a transmitter, a receiver and the coal mining machine control center to detect theposition of the segment where the coal mining machine is; outputting a position segment code signal through the operation processing of the coal mining machine control center, and controlling and switching carrier frequencies or passages or decoding formats, and the like of the receiver through an automatic switching control circuit newly increased in the receiver. Each transmitter adopts different transmitting carrier frequencies or coding formats, and the like to correspond to the set working surface segment and the switchable receiving of the receiver. The invention can reduce the creepingand the crawling of operators following machines and the labor intensity, realizes safety and high efficiency, has man-machine conversation interface segment setting, flexibility, convenience and accurate positioning, is especially suitable for the remote control of the thin seam coal mining machine, and is also suitable for moderate and thick seam coal mining machines.

Description

technical field [0001] The invention relates to a radio remote control technology for a shearer in a fully mechanized mining face of a coal mine, in particular to a remote control method and device for a shearer in a thin coal seam fully mechanized mining face suitable for remote control of the shearer in a fully mechanized mining face of a thin coal seam. Background technique [0002] The thin coal seam fully mechanized mining face has small mining height, many supporting equipment, and small space for passing people. It is difficult for people to walk on the mining face and often needs to crawl. Although the radio remote control of the shearer is a mature technology and can be operated off-machine, it still needs to crawl with the machine for a long distance on the thin coal seam working face, which is very hard and unsafe. It is necessary to solve the problems of remote control of shearer in thin coal seam working face based on the concept of people-oriented. Contents o...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21C25/00G05B19/418G08C17/02
CPCY02P90/02
Inventor 曲天智谢波王玉学张崇宏齐振峰孙继爽蒲保山张纯
Owner 兖矿能源集团股份有限公司
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