CN201443415U - Coal-winning machine remote control device for thin coal seam working face - Google Patents
Coal-winning machine remote control device for thin coal seam working face Download PDFInfo
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- CN201443415U CN201443415U CN2009200215084U CN200920021508U CN201443415U CN 201443415 U CN201443415 U CN 201443415U CN 2009200215084 U CN2009200215084 U CN 2009200215084U CN 200920021508 U CN200920021508 U CN 200920021508U CN 201443415 U CN201443415 U CN 201443415U
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Abstract
A coal-winning machine remote control device on a thin coal seam working face is made up of a wireless remote control transmitter, a receiver, a coal-winning machine control center and a segment switching control circuit, wherein the control circuit is made up of a positioning device for detecting the dividing position of the work surface where the coal-winning machine is positioned, the coal-winning machine control center, a signaling conversion circuit and a switching control circuit. Segmented encoding signals are output after position signals output by the positioning device are processed through the control center, and sent to the switching control circuits of receivers through the signaling conversion circuit so as to control the switching of carrier frequencies or channels. The carrier frequencies of all receivers are different and correspond with set segmentations and correspond with the switched receive of the receivers. When the coal mining machine overcomes a section spot and enters into a segmentation, the receiver switches and receives automatically, only control instructions set on the segmentation can be received, that an operator creeps with the machine can be reduced, the labor intensity is reduced, and the safety and high efficiency are achieved. The segmentation setting for man-machine interface is flexible and convenient, and the positioning is accurate, and the utility model is particularly suitable for remote control of the thin coal seam working face, and is also suitable for medium and thick seams.
Description
Technical field
The utility model relates to coal mine fully-mechanized mining working coal-winning machine radio remote control technology, the thin seam working surface coal mining machine remote control that the remote control of particularly a kind of suitable thin coal bed fully-mechanized mining working surface coal mining machine is used.
Background technology
Thin coal bed fully-mechanized mining face is little because of its mining height, corollary equipment is many, remarkable space is little, and the people often need creep at the stope difficulty in walking.Though the coal-winning machine wireless remotecontrol has been mature technology, the operation of can disembarking for thin seam working surface, still needs long distance to crawl to creep with machine, and it is very arduous also dangerous to work.It is necessary to solve the problem that the thin seam working surface coal mining machine remote control exists in line with people-oriented theory.
Summary of the invention
For solve the thin seam working surface coal mining machine remote control need grow the distance crawl bow creep, labour intensity is big, unsafe deficiency, the utility model provides a kind of thin seam working surface coal mining machine remote control, can reduce with machine crawl to creep distance, alleviate labor strength, realize safe and efficient.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
The thin seam working surface coal mining machine remote control, by wireless remotecontrol emitter, wireless remotecontrol receiver, coal-winning machine control centre, and the segmentation control switching circuit is formed.The segmentation control switching circuit is made up of the positioner that detects coal-winning machine work plane segmentation of living in position, coal-winning machine control centre, signaling conversion circuit, control switching circuit etc.The output of positioner is connected with the input of the coal-winning machine position signalling of coal-winning machine control centre, coal-winning machine control centre sends the output of coal-winning machine location segment code signal, through signaling conversion circuit, be connected with the resonant tank of receiver control or the control switching circuit that its element switches or control multichannel receiver passage switches.
Perhaps, positioner, is connected with the resonant tank of receiver control or the control switching circuit that its element switches or control multichannel receiver passage switches by the output of its output coal-winning machine location segment code signal by ad hoc signal processing unit.
The wireless remotecontrol emitter adopts the different emitter of multi-section carrier frequency, and the carrier frequency of different transmitters is corresponding with each segmentation of work plane respectively.
The wireless remotecontrol receiver adopts the receiver of changeable carrier frequency or the multichannel receiver of changeable passage.The carrier frequency of switchable carrier frequency of wireless remotecontrol receiver or the changeable passage of multichannel receiver is corresponding one by one with the carrier frequency of each wireless remotecontrol emitter.
When with coal-winning machine walking, when crossing waypoint and entering a certain segmentation of work plane, the carrier frequency of wireless remotecontrol receiver switches to and the corresponding predetermined carrier frequency of this segmentation; For multichannel receiver, be changed to the predetermined carrier frequency corresponding with this segmentation with passage switching, passage carrier frequency; At this moment, the carrier frequency of receiver or passage carrier frequency are identical with the carrier frequency that is set in this segmentation radio transmitter.
The beneficial effects of the utility model are:
1. can reduce the personnel of controlling thin seam working surface with machine crawl to creep, alleviate labor strength, realize safe and efficient.
2. hollow shaft photoelectric encoder counting is located, and split fix is accurate, reliable operation.Set work plane segments and waypoint by man-machine dialog interface, segmentation is flexible.Utilize the control of PLC or Industrial Personal Computer (IPC), automaticallying switch receives the reception of different segmentations, adopts the transmission of coding serial communication, and control is reliable.
Description of drawings
Fig. 1 is the composition block diagram of the utility model thin seam working surface coal mining machine remote control.
Fig. 2, the 3rd, the block diagram of first and second kind of coal-winning machine remote control embodiment.
Fig. 4 is the electrical schematic diagram of first kind of embodiment receiver of coal-winning machine remote control and segmentation control.
Fig. 5, the 6th, the block diagram of third and fourth kind of coal-winning machine remote control embodiment.
Fig. 7 is the electrical schematic diagram of the third embodiment receiver of coal-winning machine remote control and segmentation control.
Among the figure: BM
1-hollow shaft photoelectric encoder, PLC-programmable controller, A
1-high frequency dash receiver, A
2-switching controller, IC
1And IC
2-single-chip microcomputer, RX
1And RX
2-wireless remotecontrol receiver, BPS-intrinsic safety electric source, the non-intrinsic safety electric source of FPS-, IPC-Industrial Personal Computer (IPC), A
CT-counting module, A
OUT-output module.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model thin seam working surface coal mining machine remote control, be to form on the basis of coal-winning machine remote control by wireless remotecontrol emitter, wireless remotecontrol receiver, coal-winning machine control centre, increase the control circuit that segmentation is switched, realize the remote control of coal-winning machine automatic segmentation; That is: as required work plane is divided into plurality of sections along face length, and segmentation parameter is input to coal-winning machine control centre; Set up positioner, by positioner the actual residing positional information of coal-winning machine is provided and passes to coal-winning machine control centre in real time, by coal-winning machine control centre according in advance the input segmentation parameter and the positional information calculation process that receives in real time, output coal-winning machine location segment code signal, the in good time automatic switchover that the control receiver receives.
The wireless remotecontrol emitter adopts the different emitter of multi-section carrier frequency, and its carrier frequency is corresponding with each segmentation of work plane respectively.The wireless remotecontrol receiver adopts the receiver of changeable carrier frequency or passage, and its switchable carrier frequency or passage carrier frequency are corresponding one by one with the carrier frequency of each emitter.
With the walking of coal-winning machine, when coal-winning machine is crossed waypoint and entered a certain segmentation of work plane, the carrier frequency of wireless remotecontrol receiver or passage carrier frequency switch to the carrier frequency that is set in this segmentation emitter; At this moment, receiver receives only the control instruction of the control coal-winning machine that the radio transmitter that is set in this segmentation sends.
Also can receive and handle the coal-winning machine positional information that positioner provides by an ad hoc signal processing unit, output coal-winning machine location segment code signal, the automatic switchover that control wireless remotecontrol receiver receives.
The composition of the utility model thin seam working surface coal mining machine remote control shown in Figure 1, be the composition of automatic segmentation remote control.Mainly form by wireless remotecontrol emitter, wireless remotecontrol receiver, coal-winning machine control centre, positioner, signaling conversion circuit, intrinsic safety electric source, non-intrinsic safety electric source etc.To be that coal-winning machine is controlled personnel portable except the wireless remotecontrol emitter, and remainder is that coal-winning machine is airborne.
The wireless remotecontrol emitter is used to launch the control instruction of coal-winning machine, and two ones is one group, is exemplified as eight groups: emission unit 1～8.Two emitters of each emission unit are controlled the left and right cylinder of coal-winning machine respectively.Emission unit adopts two emitters and is controlled respectively by two people, is because just be not easy to see clearly in the cut situation of the thin seam working surface distance coal-winning machine left and right sides far away slightly cylinder.
The wireless remotecontrol emitter can make the high-frequency emission plate obtain different master oscillator frequencs by the crystal oscillator of different frequency is installed in the machine.Eight emission units are made carrier frequency with eight different master oscillator frequencs.Emitter also can adopt wireless data transmission module, sets eight different frequent points as required and makes channel carrier frequency; Also can adopt the coding of eight different-formats to launch, decode with corresponding codec format by receiver etc.
High frequency dash receiver, single-chip microcomputer etc. are arranged in the wireless remotecontrol receiver.The number that receives 1～reception, 8 expression automatic switchover receptions is eight, and switchable reception can be eight different carrier frequency, be master oscillator frequenc or passage or frequency, and is corresponding one by one with the carrier frequency of eight emission units; Also can be to switch eight different passages or eight different codec formats or eight different receiver modules etc.
Embodiment 1:
The utility model thin seam working surface coal mining machine remote control shown in Figure 2, be first kind of embodiment of automatic segmentation remote control.Its positioner adopts the hollow shaft photoelectric encoder, and coal-winning machine control centre is the coal-winning machine main control unit, adopts programmable controller, and signaling conversion circuit adopts switching controller.
The master of wireless remotecontrol receiver shakes 1～8, i.e. eight master oscillator frequencs, switched by eight output control terminals controls of the single-chip microcomputer of using as decoder.Two receivers of coal-winning machine receive the remote signal of two emitters of same emission unit respectively, control the left and right cylinder of coal-winning machine respectively.
Wireless remotecontrol emission unit 1～8 has eight carrier frequency.The model of emitter is: FYF20C, scientific ﹠ technical corporation's product is extensively recorded in Shijiazhuang.In radio transmitter,, make its high-frequency emission plate have different carrier frequency by the crystal oscillator of different frequency is installed.The carrier frequency of eight emission units is corresponding identical with eight master oscillator frequencs of receiver, and corresponding with eight segmentations of the work plane that sets.All the other same Fig. 1.
The circuit theory of first kind of embodiment receiver shown in Figure 4 and automatic segmentation control section.
1. explosion-proof type hollow shaft photoelectric encoder BM
1: as the stroke sensor of coal-winning machine, be installed on a certain output shaft of shearer hauled-part, rotate with the coal-winning machine walking, its output terminals A, B hold the exportable two-phase square-wave signal 90 °, that reflect coal-winning machine direction of travel, speed, distance that differs.Its model is: SZF30-1024RF-30G, and for Correspondent Electronics Co., Ltd. in Changchun makes.Its power end B24V, earth terminal GND connect B24V, the GND end of intrinsic safety electric source BDY, by 24 volts of power supplies of direct current of intrinsic safety electric source.
2. programmable controller PLC: adopting product, the model of Mitsubishi is FX2N64MR.Its input X
0, X
1End and photoelectric encoder BM
1Output terminals A, B connect, receive photoelectric encoder BM
1The A that sends, B two-phase square-wave signal carry out computing, processing, storage, demonstration to signal, and according to the work plane section length of setting, at output Y
30～Y
35Output segment encoding signal.COM
5End is its common.The input X of PLC
3～X
7, X
10～X
17, X
20～X
27, X
30～X
37And output Y
0～Y
7, Y
10～Y
17, Y
20～Y
27, for connecing the terminal of coal-winning machine electric control system controls loop and remote control output.The L of PLC, N end is power end, adopts AC 220V power supply.
3. switching controller A
2: be with single-chip microcomputer IC
2Be main that constitute, convert the parallel fragmentation code signal of PLC output the device of serial segment encoding signal to, model is: LYZH-7.Single-chip microcomputer IC in it
2Model be: PIC16C57.Switching controller A
2By terminal 5,6,7 and 12,13,14 terminals, send the lead-out terminal Y of segment encoding signal with PLC
30～Y
32And Y
33～Y
35The corresponding connection is at inner and single-chip microcomputer IC
2Corresponding connection of pin 4,6,7,8,11,12,13; The terminal 8 of switching controller and its interior single-chip microcomputer IC
2Pin 4 connect, externally and the terminal COM of PLC
5Connect, as the common of output.At single-chip microcomputer IC
2In convert parallel segment encoding signal to serial segment encoding signal, by 14 pin, the switching controller A of single-chip microcomputer
2Signal end SIG, promptly 4 ends send.
Switching controller A
2Power positive end B5V, earth terminal GND, connect B5V, the GND end of intrinsic safety electric source BDY, adopt DC 5V power supply.Switching controller A
2Power end F12V, earth terminal GND, meet power end F12V, the earth terminal GND of non-intrinsic safety electric source FDY, adopt DC 12V power supply.All the other terminals 10,2: be other output V
01, V
02
4. wireless remotecontrol receiver RX
1, RX
2: two receiver RX
1, RX
2Receive the telecommand of two emitters of each emission unit respectively, by output V
0, i.e. 2 ends output, after the PLC decoding, control the left and right sides cylinder of coal-winning machine respectively.Two receiver RX
1, RX
2To the telecommand of two co-channel transmitters of same emission unit, be to utilize the difference of coding sequential to be differentiated.The receiver model is: FYS20C type, the same emitter of producer.This receiver can be transformed on common single channel remote-control receiver basis.
Remodeling method: with the signal end SIG of radio receiver, be terminals 3 and switching controller A
2The serial segment encoding signal end SIG, be terminal 4, internally link to each other, single-chip microcomputer IC with 12 pin of single-chip microcomputer IC1, PIC16C57
1Making decoder usefulness, eight control signal outputs after the decoding, is IC
1Pin 10,11,13,14,15,18,20,21 ends, meet eight midget relay J respectively
1～J
8Eight docking point J of eight relays
1-1～J
8-1Be connected on crystal oscillator X respectively
1～X
8With high frequency dash receiver A
1In the connection of main vibration circuit, constitute the different crystal oscillators of control and switch the control switching circuit that inserts.Because of crystal oscillator X
1～X
8The frequency difference, so high frequency dash receiver A
1Have eight different switching master oscillator frequencs.All the other terminals: 4 ends are that power positive end B5V, 1 end are power supply negative terminal 0V.The relay model is: the G6K2P type.
Use switching controller A
2Cooperate with the decoder in the receiver, increase the coded strings communication function that works, make signal transmission between electric control box PLC and the receiver, do not need to use the multicore communication cable.
5. power supply: give explosion-proof type hollow shaft photoelectric encoder, switching controller, the power supply of wireless remotecontrol receiver.Comprise intrinsic safety electric source BDY and non-intrinsic safety electric source FDY.The power end B24V of intrinsic safety electric source, earth terminal GND provide DC 24V operating voltage for photoelectric encoder; Its power end B5V, earth terminal GND provide DC5V.Power end F12V, the earth terminal GND of non-intrinsic safety electric source provide DC 12V.
Embodiment 2:
The another embodiment of thin seam working surface coal mining machine automatic segmentation remote control shown in Figure 3.
The wireless remotecontrol receiver adopts multichannel receiver, by the switching realization segmentation remote control of control receive path.Though circuit is simple not as switching crystal oscillator, change master oscillator frequenc.But also be one of feasible program.
The switching controls of receiver channel: by two groups of lead-out terminals of PLC, three the every group segment encoding signals that send, pass through multicore cable with the parallel encoding aspect, be sent to the wireless remotecontrol receiver, three/eight decoder decodes in receiver, eight outputs by decoder export single-chip microcomputer to, pass through eight outputs output control signals of the single-chip microcomputer of control switching circuit then, the switching of eight passages of control receiver.Eight passages of receiver: passage 1～8 is connected with high-frequency receiver.The sort signal transmission means without switching controller and coding serial communication, but will be used the multicore communication cable by coal-winning machine electric control box to receiver transmission signal.All the other are substantially the same manner as Example 1.
Embodiment 3:
In the third embodiment of the remote control of thin seam working surface coal mining machine automatic segmentation shown in Fig. 5,7.
Coal-winning machine control centre adopts industrial control computer, is Industrial Personal Computer (IPC) IPC.Positioner is still with hollow shaft photoelectric encoder BM
1Be example, the counting module A of its output terminals A, B end and Industrial Personal Computer (IPC)
CTInput IN
0, IN
1Connect.Industrial Personal Computer (IPC) output module A
OUTOutput R
01～R
03, R
04～R
06Export two set of segmentation code signals respectively.COM
0End is common, and+12V, GND end is dc power supply terminal, earth terminal.AC220V is the communication power supply end of Industrial Personal Computer (IPC) IPC.
Photoelectric encoder BM
1The two-phase square-wave signal that output terminals A, B send is by the counting module A of IPC
CTInput IN
0, IN
1Input IPC, the work plane segmentation parameter is imported by the human-computer dialogue device of IPC, by IPC signal is calculated, handles, stores, shows, according to the work plane section length of setting, the output module A of IPC
OUTOutput R
01～R
03, R
04～R
06Export two groups three coal-winning machine location segment code signals respectively.This code signal through signaling conversion circuit, be switching controller A
2, converting the input signal of control switching circuit to, the control receiver switches crystal oscillator X
1～X
8, change the master oscillator frequenc that receives: the main 1～master that shakes shakes 8.The reception that realizes the remote control of wireless remotecontrol receiver automatic segmentation is switched.The model of Industrial Personal Computer (IPC) is: MIC3001/8; Counting module A
CTModel be: ADAM4080, output module A
OUTModel be: ADAM3937.Magnificent company product is ground in Taiwan.All the other are identical with embodiment 1.
Embodiment 4:
The 4th kind of embodiment of thin seam working surface coal mining machine automatic segmentation remote control shown in Figure 6.
Positioner is by ad hoc signal processing unit, and output coal-winning machine location segment code signal is sent to the control switching circuit in the receiver, is received by control switching circuit output control and switches.This routine coal-winning machine position signalling is handled separately, and not by PLC and IPC as coal-winning machine control centre.
Adopting the axle photoelectric encoder with positioner is example.Signal processing unit can be made up of counting module, single-chip microcomputer etc.The input of counting module is connected with axle photoelectric encoder output, and its output is connected with the single-chip microcomputer input.The output of single-chip microcomputer is connected with the coal-winning machine location segment code signal input of receiver.In receiver by comprising the different switchings that receive of control switching circuit that single-chip microcomputer is formed control.
This illustration shows the frequency that adopts switching different: frequency 1～frequency 8.All the other are identical with embodiment 1.
Positioner also can adopt position sensing device except adopting axle photoelectric encoder as stroke sensor, Hall speed probe etc., as: the coal-winning machine infrared positioning device.This infrared positioning device is made up of infrared transmitting device on the coal-winning machine and the infrared receiver that is installed on the hydraulic support; The infrared receiver of support is sent to the controller of hydraulic support with the position signalling of coal-winning machine, and controller will be delivered to coal-winning machine again.Its model is: pm32/wm/r, German agate jade-like stone company product.
Operating principle: with embodiment 1 is example.
1. coal-winning machine is that starting point resets a photoelectric encoder with head or tail behind the assembly and adjustment of down-hole.Press face length as required to the work plane segmentation, the predefined section length data of input in PLC.
2. coal-winning machine is installed in the hollow shaft photoelectric encoder on the shearer hauled-part output shaft when a certain direction is walked, and rotates with the coal-winning machine walking, and its A, B end is to the X of PLC
0, X
1End sends the square-wave signal of reflection coal-winning machine direction of travel, speed, distance.
3. after PLC receives the signal of photoelectric encoder, carry out computing and according to predefined section length at output Y
30～Y
35Send the segment encoding signal to switching controller.
4. switching controller receives PLC output Y by input terminal
30～Y
32And Y
33～Y
35The segment encoding signal that sends send inner single-chip microcomputer PIC16C57 to handle, and single-chip microcomputer PIC16C57 converts parallel segment encoding signal to serial segment encoding signal, and 4 ends by 14 pin and switching controller send.
5. receiver receives the serial segment encoding signal that switching controller sends, and enters 12 ends of single-chip microcomputer PIC16C57, output 8 tunnel control signals after single-chip microcomputer decoding, control J
1～J
8The on off operating mode of eight midget relaies.By J
1-1～J
8-1Eight contacts are controlled crystal oscillator X respectively
1To X
8Connection combination with the high frequency dash receiver.Because of crystal oscillator X
1～X
8The frequency difference, changeable eight the different master oscillator frequencs of high frequency dash receiver.
6. eight wireless remotecontrol emission units have eight different master oscillator frequencs, are carried respectively by each the coal-winning machine driver who is positioned at eight segmentations of stope and control.Switchable eight master oscillator frequencs of airborne radio receiver are corresponding with eight master oscillator frequencs of the emission unit that is positioned at eight segmentations of work plane.
7. along with the walking of coal-winning machine, every when crossing waypoint and entering the some segmentation of work plane, radio receiver just automatically switches to crystal oscillator corresponding with this segmentation in eight crystal oscillators and connects, and the operation of receiver master oscillator frequenc is with to be positioned at this segmentation emitter master oscillator frequenc identical; At this moment, the emitter that only is positioned at this segmentation sends and shakes control instruction and can be received machine and receive and carry out, thereby realizes the remote control of coal-winning machine automatic segmentation.
The corresponding relation of the tri-bit encoding signal that programmable controller sends and the master oscillator frequenc of wireless remotecontrol operation of receiver, wireless remotecontrol emitter group number and work plane fragment number is as follows:
Illustrate:
1. the utility model segmentation remote control is particularly suitable for the remote control of stoping low coal seam working surface coal mining machine, but is not limited to thin seam working surface, can adopt equally if necessary for medium-thickness seam, high seam work plane.
2. above-mentioned embodiment is that the IPC that adopts Mitsubishi PLC, Taiwan to grind China gathers position signalling, also can adopt other programmable logic controller or high speed counting module and industrial computer that signal is gathered.
3. the circuit of switching controller (LYZH-7), wireless remotecontrol receiver (FYS20C) and emitter (FYF20C) and also available other model of inner single-chip microcomputer PIC16C57 or identical function and device substitute.
The master oscillator frequenc number of the work plane segments of 4. giving an example, emission unit number, receiver is 8, can be used as preferably, actually uses number to be less than or more than 8.Also be not limited to 8 as product design.
Claims (12)
1. a thin seam working surface coal mining machine remote control comprises wireless remotecontrol emitter, wireless remotecontrol receiver, coal-winning machine control centre, it is characterized in that: have the segmentation control switching circuit; This circuit comprises the positioner that detects coal-winning machine work plane segmentation of living in position, said coal-winning machine control centre, signaling conversion circuit, control switching circuit; The positioner output is connected with the coal-winning machine location segment signal input part of coal-winning machine control centre, the output of the transmission coal-winning machine location segment code signal of coal-winning machine control centre, through signaling conversion circuit, be connected with the resonant tank of control receiver or the control switching circuit that its element switches or control multichannel receiver passage switches;
Perhaps, positioner, is connected with the resonant tank of control receiver or the control switching circuit that its element switches or control channel is switched by the output of its output coal-winning machine location segment code signal by ad hoc signal processing unit;
Said wireless remotecontrol emitter is the different emitter of multi-section carrier frequency, and the carrier frequency of different transmitters is corresponding with each segmentation of work plane respectively;
Said wireless remotecontrol receiver is the receiver of changeable carrier frequency or the multichannel receiver of changeable passage; The carrier frequency of switchable carrier frequency of wireless remotecontrol receiver or changeable passage is corresponding one by one with the carrier frequency of each wireless remotecontrol emitter;
When with coal-winning machine walking, when crossing waypoint and entering a certain segmentation of work plane, the carrier frequency of wireless remotecontrol receiver switches to the predetermined carrier frequency corresponding with this segmentation; For multichannel receiver, be changed to the predetermined carrier frequency corresponding with this segmentation with switching, the passage carrier frequency of passage; At this moment, the carrier frequency of receiver or passage carrier frequency are identical with the carrier frequency of the emitter that is set in this segmentation.
2. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said coal-winning machine control centre is PLC; The human-computer dialogue device of PLC is the input unit of work plane segmentation parameter; The output of PLC output coal-winning machine location segment code signal through signaling conversion circuit, switches the segmentation control signal input that receives carrier frequency or passage with the control receiver and is connected.
3. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said coal-winning machine control centre is an Industrial Personal Computer (IPC); The human-computer dialogue device of Industrial Personal Computer (IPC) is the input unit of work plane segmentation parameter; The output of Industrial Personal Computer (IPC) output coal-winning machine location segment code signal through signaling conversion circuit, switches the segmentation control signal input that receives carrier frequency or passage with the control receiver and is connected.
4. according to claim 2 or 3 described thin seam working surface coal mining machine remote control thereofs, it is characterized in that: said signaling conversion circuit is a decoding circuit, and this circuit is the decoder that the parallel fragmentation code signal of PLC or Industrial Personal Computer (IPC) output is converted to multichannel output control signal.
5. according to claim 2 or 3 described thin seam working surface coal mining machine remote controls, it is characterized in that: said signaling conversion circuit comprises coding circuit and decoding circuit; Two groups of parallel location segment code signals of PLC or Industrial Personal Computer (IPC) output are converted to the coding circuit of serial position segment encoding signal, its input is connected with the output that PLC or Industrial Personal Computer (IPC) send coal-winning machine location segment code signal, and its output is connected with the input of decoding circuit;
Serial position segment encoding signal is converted to the decoding circuit of the control signal of control multichannel output switching, its input is connected with the serial position segment encoding signal output part of coding circuit, and its output is connected with the signal input part that the control circuit of carrier frequency or passage is switched in the output of control multichannel.
6. thin seam working surface coal mining machine remote control according to claim 5 is characterized in that: said coding circuit is by single-chip microcomputer (IC in the electric control box
2) switching controller (A that constitute, that two groups of parallel location segment code signals of PLC or Industrial Personal Computer (IPC) output are converted to one tunnel serial segment encoding signal
2);
Said decoding circuit is with switching controller (A
2) the serial position segment encoding signal that sends convert to multichannel output control signal, by the single-chip microcomputer (IC in the wireless remotecontrol receiver
1) circuit that constitutes.
7. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said positioner is the explosion-proof type hollow shaft photoelectric encoder that is contained on the shearer hauled-part output shaft.
8. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said positioner is an infrared rays coal-winning machine position sensing device.
9. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: the receiver of said changeable master oscillator frequenc has the tank elements of a plurality of changeable master oscillator frequencs, the crystal oscillator of different frequency; The control switching circuit that the different crystal oscillators of control resonant tank switch is: the multichannel output control terminal of decoding circuit respectively connects a relay, after corresponding with each crystal oscillator respectively series connection of the contact of these relays, and high frequency dash receiver (A
1) the main resonance circuit that shakes is connected.
10. thin seam working surface coal mining machine remote control according to claim 9 is characterized in that: the changeable master oscillator frequenc of said receiver is eight; Make the single-chip microcomputer (IC of decoding circuit
1) output control terminal number, relay (J
1～J
8) number, relay tip (J
1-1～J
8-1) group number, crystal oscillator (X
1～X
8) number is eight; Radio transmitter is eight groups, and each one one of two one every group, left and right sides cylinder are in same segmentation.
11. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said wireless remotecontrol receiver is eight passage receivers; Said coal-winning machine control centre is PLC, and PLC exports three outputs of three parallel-by-bit segment encoding signals, connects single-chip microcomputer through three/eight decoders, eight passage switching controls ends of eight output termination remote-control receivers of single-chip microcomputer; Radio transmitter is eight groups, two ones every group, a segmentation.
12. thin seam working surface coal mining machine remote control according to claim 1 is characterized in that: said signal processing unit comprises counting module and single-chip microcomputer; The input of counting module is connected with the output of positioner shaft encoder, and its output is connected with the single-chip microcomputer input, and the output of single-chip microcomputer is connected with the coal-winning machine location segment code signal input of receiver.
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| CN2009200215084U CN201443415U (en) | 2009-04-22 | 2009-04-22 | Coal-winning machine remote control device for thin coal seam working face |
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| CN2009200215084U CN201443415U (en) | 2009-04-22 | 2009-04-22 | Coal-winning machine remote control device for thin coal seam working face |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102340333A (en) * | 2010-07-28 | 2012-02-01 | 三一重型装备有限公司 | Bluetooth transmission device for coal mining machine |
| CN105321319A (en) * | 2015-10-27 | 2016-02-10 | 刘志海 | Coal cutter wireless remote control system utilizing narrow space |
-
2009
- 2009-04-22 CN CN2009200215084U patent/CN201443415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340333A (en) * | 2010-07-28 | 2012-02-01 | 三一重型装备有限公司 | Bluetooth transmission device for coal mining machine |
| CN105321319A (en) * | 2015-10-27 | 2016-02-10 | 刘志海 | Coal cutter wireless remote control system utilizing narrow space |
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