CN201023968Y - Bidirectional roller personnel protection device of mining belt conveyor - Google Patents
Bidirectional roller personnel protection device of mining belt conveyor Download PDFInfo
- Publication number
- CN201023968Y CN201023968Y CNU2007201009155U CN200720100915U CN201023968Y CN 201023968 Y CN201023968 Y CN 201023968Y CN U2007201009155 U CNU2007201009155 U CN U2007201009155U CN 200720100915 U CN200720100915 U CN 200720100915U CN 201023968 Y CN201023968 Y CN 201023968Y
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- China
- Prior art keywords
- circuit
- bidirectional roller
- adhesive tape
- tape conveyor
- voltage comparator
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Abstract
A bidirectional roller personnel protection device of a mining belt conveyor belongs to the technical field of mine equipment protection devices. The utility model provides a mining rubber belt conveyor two-way cylinder personnel protection device, can prevent to have the personnel to take place the accident when getting close to near two-way cylinder. The power circuit is connected with the detection circuit and the control circuit in sequence, the output end of the control circuit is connected with the conveyor start-stop circuit and the voice alarm part, and the detection circuit is installed at the position of a bidirectional roller of the rubber belt conveyor. When a person works or approaches the bidirectional roller, the start-stop control loop of the equipment is automatically disconnected, so that the equipment cannot be started or stopped, and meanwhile, the equipment is subjected to voice alarm and locked, so that the accident that the bidirectional roller hurts the person is prevented. Meanwhile, the monitoring device adopts double sampling of the infrared probe and the metal probe, so that personnel can be monitored, and the sensor can be prevented from being blocked by coal cement and then being not reported or misinformed.
Description
Technical field
The utility model relates to a kind of personal protection means of mining adhesive tape conveyor, belongs to mining equiment fender guard technical field.
Background technology
Mining belt conveyor protection device is more complete, and still, bidirectional roller location personnel fender guard but is blank.In mining adhesive tape conveyor system; often there is maintainer's operation at the bidirectional roller position; at this moment; if starting, adhesive tape conveyor will cause casualties; this phenomenon happens occasionally; therefore develop a kind of adhesive tape conveyor malfunction can prevent maintainer's operation the time, and the fender guard that the caution other staff do not start adhesive tape conveyor is the vital task of technical personnel.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can near bidirectional roller, have personnel near the time automatic cutout equipment start-stop control loop; audio alert and locking device prevent the mining adhesive tape conveyor bidirectional roller personal protection means that accident takes place simultaneously.
The technical scheme that solves the problems of the technologies described above is:
A kind of mining adhesive tape conveyor bidirectional roller personal protection means; it comprises power circuit, control circuit and audio alert part; it also has testing circuit; the mouth of power circuit is connected with testing circuit; the signal output part of testing circuit is connected with the input end of control circuit; the mouth of control circuit is connected with the input end of transport plane equipment start-stop circuit, audio alert part, and testing circuit is installed in adhesive tape conveyor bidirectional roller position.
Above-mentioned mining adhesive tape conveyor bidirectional roller personal protection means, described testing circuit comprises metal probe observation circuit and infrared light control observation circuit, the metal probe observation circuit is by metal probe TZ, voltage comparator U3, resistance R 3, R4, R5, R7 forms, the positive pole of metal probe TZ connects the inverting input of voltage comparator U3, negative earth, the in-phase input end connecting resistance R3 of voltage comparator U3, R4, the potential-divider network that R6 forms, the inverting input of voltage comparator U3 is by resistance R 7 power connection circuit, the input end of the mouth connection control circuit of voltage comparator U3; The infrared light control observation circuit is made up of infrared light control element HK, aerotron V4, and the base stage of aerotron V4 connects infrared light control element HK, grounded emitter, the input end of collecting electrode connection control circuit.
Above-mentioned mining adhesive tape conveyor bidirectional roller personal protection means, described audio alert partly is divided into two-way, and one the tunnel is installed in the adhesive tape conveyor control cabin, and another road is installed in adhesive tape conveyor bidirectional roller position.
The utility model can be when having staff's operation or close mining adhesive tape conveyor bidirectional roller position, automatic cutout equipment start-stop control loop, equipment can not be started or parking immediately, audio alert and locking device prevent the generation of bidirectional roller position casualty accident simultaneously.Simultaneously, monitoring device of the present utility model adopts infrared probe and the dual sampling of metal probe, and infrared probe is used for the testing staff, and metal probe is used to detect coal cement, so both can monitor personnel, can prevent from again not report or report by mistake after sensor from being blocked by coal cement.
Description of drawings
Fig. 1 is an installing condition scheme drawing of the present utility model;
Fig. 2 is a circuit structure block scheme of the present utility model;
Fig. 3 is schematic circuit diagram of the present utility model.
Mark is as follows among the figure: power circuit 1, testing circuit 2, control circuit 3, metal probe observation circuit 4, infrared light control observation circuit 5, adhesive tape conveyor bidirectional roller 6, adhesive tape conveyor control cabin 7, phonetic alarm 8, dragging motor master cock 9
The specific embodiment
The utility model comprises power circuit 1, testing circuit 2, control circuit 3 and audio alert part.
Fig. 1 shows; testing circuit 2 of the present utility model is installed in mining adhesive tape conveyor bidirectional roller 6 places; it is connected with control circuit 3; detectable signal is transported to control circuit 3; the dragging motor master cock 9 of control circuit 3 in can off device start and stop loop; equipment can not be started or parking immediately, while control circuit 3 can start audio alert and partly send the caution voice.The phonetic alarm 8 of audio alert part is installed in adhesive tape conveyor control cabin 7 and adhesive tape conveyor bidirectional roller 6 positions respectively.The utility model can be realized the generation of fatal accident is avoided in the automatic monitoring at mining adhesive tape conveyor bidirectional roller position.
Fig. 2, the 3rd, circuit structure block scheme of the present utility model and schematic circuit diagram.Show among the figure that circuit of the present utility model comprises power circuit 1, testing circuit 2, control circuit 3, respectively they is described below.
Power circuit 1 adopts 127V and two kinds of power supply modes of 36V.These two kinds of power supplys all can be used as power supply of the present utility model, and all have quick acting fuse F1, F2 to protect.After source of AC process voltage transformer U1 conversion, rectifier bridge D1-D4 rectification, the C1 filtering, enter into the safety protection part.Safety protection partly is two series connected little resistance high-power resistance R1, R2; its effect is: when faults such as external circuit is short-circuited; electric power outputting current will rise; when rising to cut-off current (being generally 0.5A); all pressure drops are all reduced on these two resistance; and voltage, the electric current that externally export this moment are 0, have reached the purpose of safety protection.Power supply through safety protection is divided into two-way, and one the tunnel through supplying with testing circuit 2 and control circuit 3 after the three terminal regulator U2 voltage stabilizing, and audio alert partial sum relay is supplied with on another road.
Metal probe observation circuit 4 is made up of metal probe TZ, voltage comparator U3, resistance R 3, R4, R5, R7.The in-phase input end of voltage comparator U3 (2 pin) is connected to the potential-divider network of being made up of resistance R 3, R6 and adjustable resistance R4, and its input range can be adjusted into 2.67V-5.33V by adjustable resistance R4; Its inverting input (3 pin) is connected to power supply by the resistance R 7 of a 1.5M, and also directly as the positive pole of metal probe TZ, the negative pole of metal probe TZ directly inserts power supply ground to its inverting input (3 pin) simultaneously.When work, when not having dust, coal slime and water between metal probe TZ the two poles of the earth, the magnitude of voltage of voltage comparator U3 inverting input (3 pin) is power line voltage (8V), and the mouth of voltage comparator U3 (7 pin) output voltage is high level (8V), then can not trigger subordinate's circuit working; When between metal probe TZ the two poles of the earth dust, coal slime and water being arranged, the magnitude of voltage of voltage comparator U3 inverting input (3 pin) is resistance between the probe and the partial pressure value of pull-up resistor R7, if in the time of should being worth the magnitude of voltage of setting greater than voltage comparator U3 in-phase input end (2 pin), the mouth of voltage comparator U3 (7 pin) output voltage is low level (0V).
Infrared light control observation circuit 5 is made up of infrared light control element HK, aerotron V4, and the base stage of aerotron V4 connects infrared light control element HK, grounded emitter, the input end of collecting electrode connection control circuit 3.Be output as low level signal when the period of blocking that infrared light-dependent control element HK does not receive the people, aerotron V4 is in off condition, can not influence voltage comparator U3 mouth (7 pin) output voltage, also just can not influence subordinate's circuit working; Be output as high level signal when the period of blocking that infrared light-dependent control element HK receives the people, aerotron V4 is in conducting state, and voltage comparator U3 mouth (7 pin) output voltage is pulled to low level, and this just will cause the work of control circuit 3.
The working process of control circuit 3 and audio alert part is as follows: when control circuit 3 receives the low level signal that testing circuit 2 transmits, to trigger IC chip U4, change its mode of operation, making its output is high level by the low level upset, make aerotron V2 conducting, thereby make relay K 1, K2 get electric adhesive.The K1 adhesive disconnects its long closed contact, thereby conveyor belt is stopped; The K2 adhesive make audio alert partly electric work, send audio alert.When IC chip U4 output high level, the elementary conducting because of aerotron V2 of photoelectrical coupler V3 is worked, and causes that its two side also is switched on.Thereby make the mouth of IC chip U4 maintain high level,, also can not change the mode of operation of relay K 1, K1, up to there being artificial reset signal to arrive even the output of IC chip U4 changes at this moment.When reset signal took place, the base stage of aerotron V2 was dragged down by force, so aerotron V2 turn-offs; relay K 1, K2 dead electricity; the long closed contact closure of conveyer belt protection, audio alert part dead electricity quits work, and the latching circuit of photoelectrical coupler V3 also stops auto-lock function.
The phonetic alarm 8 of audio alert part is divided into two-way, and one the tunnel is installed in adhesive tape conveyor control cabin 7, reminds and opens the adhesive tape conveyor driver, " people's operation is arranged, forbid driving ".Another road is installed in bidirectional roller 6 positions, reminds bidirectional roller position maintainer, " adhesive tape starts at any time, No climbing ".Audio alert partly adopts speech chip and loud speaker, and pronunciation circuits such as speech chip and loud speaker have multiple circuit form, is ripe prior art, repeats no more in the utility model.
The model of subelement of the present utility model is:
Three terminal regulator U2 is that LM7808 voltage comparator U3 is that LM311 IC chip U4 is NE555
Photoelectrical coupler V3 is that 521-1 aerotron V2, V4 are that 9013 relay K 1, K2 are JZC-22F
Claims (3)
1. mining adhesive tape conveyor bidirectional roller personal protection means; it comprises power circuit [1], control circuit [3] and audio alert part; it is characterized in that: it also has testing circuit [2]; the mouth of power circuit [1] is connected with testing circuit [2]; the signal output part of testing circuit [2] is connected with the input end of control circuit [3]; the mouth of control circuit [3] is connected with the input end of transport plane equipment start-stop circuit, audio alert part, and testing circuit [2] is installed in adhesive tape conveyor bidirectional roller [6] position.
2. mining adhesive tape conveyor bidirectional roller personal protection means according to claim 1, it is characterized in that: described testing circuit [2] comprises metal probe observation circuit [4] and infrared light control observation circuit [5], metal probe observation circuit [4] is by metal probe TZ, voltage comparator U3, resistance R 3, R4, R5, R7 forms, the positive pole of metal probe TZ connects the inverting input of voltage comparator U3, negative earth, the in-phase input end connecting resistance R3 of voltage comparator U3, R4, the potential-divider network that R6 forms, the inverting input of voltage comparator U3 is by resistance R 7 power connection circuit [1], the input end of the mouth connection control circuit [3] of voltage comparator U3; Infrared light control observation circuit [5] is made up of infrared light control element HK, aerotron V4, and the base stage of aerotron V4 meets infrared light control element HK, grounded emitter, the input end of collecting electrode connection control circuit [3].
3. mining adhesive tape conveyor bidirectional roller personal protection means according to claim 2; it is characterized in that: described audio alert partly is divided into two-way; one the tunnel is installed in adhesive tape conveyor control cabin [7], and another road is installed in adhesive tape conveyor bidirectional roller [6] position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201009155U CN201023968Y (en) | 2007-04-02 | 2007-04-02 | Bidirectional roller personnel protection device of mining belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201009155U CN201023968Y (en) | 2007-04-02 | 2007-04-02 | Bidirectional roller personnel protection device of mining belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201023968Y true CN201023968Y (en) | 2008-02-20 |
Family
ID=39097821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201009155U Expired - Fee Related CN201023968Y (en) | 2007-04-02 | 2007-04-02 | Bidirectional roller personnel protection device of mining belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201023968Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765592A (en) * | 2012-07-25 | 2012-11-07 | 大同煤矿集团有限责任公司 | Safety protection system with function of preventing belt conveyor from hurting people for coal preparation plant |
| CN108430897A (en) * | 2015-11-30 | 2018-08-21 | 哈贝尔公司 | The systems, devices and methods of the synchronized-pulse control of bandwidth chahnel on data communication bus |
-
2007
- 2007-04-02 CN CNU2007201009155U patent/CN201023968Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765592A (en) * | 2012-07-25 | 2012-11-07 | 大同煤矿集团有限责任公司 | Safety protection system with function of preventing belt conveyor from hurting people for coal preparation plant |
| CN108430897A (en) * | 2015-11-30 | 2018-08-21 | 哈贝尔公司 | The systems, devices and methods of the synchronized-pulse control of bandwidth chahnel on data communication bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20140402 |