CN102231064A - System and method for protecting pin-tooth type trolley machine - Google Patents
System and method for protecting pin-tooth type trolley machine Download PDFInfo
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- CN102231064A CN102231064A CN2011100826484A CN201110082648A CN102231064A CN 102231064 A CN102231064 A CN 102231064A CN 2011100826484 A CN2011100826484 A CN 2011100826484A CN 201110082648 A CN201110082648 A CN 201110082648A CN 102231064 A CN102231064 A CN 102231064A
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Abstract
The invention discloses a system and method for protecting a pin-tooth type trolley machine. The system comprises a PLC (Programmable Logic Controller), a magnet, two displacement sensors, a dry reed pipe, a forward control switch, a backward control switch, a reset switch, a first hydraulic pump control switch, a forward relay, a backward relay, a first hydraulic pump relay, a faulty action control relay, a cage chair control relay and a sensor damage alarm relay, wherein the magnet is arranged on a base of the pin-tooth type trolley machine; the displacement sensors are connected with the input end of the PLC respectively; the dry reed pipe is matched with the magnet; the forward relay is connected with the output end of the PLC; the two displacement sensors are arranged on an installation base of a transmission gear of a hydraulic motor of the pin-tooth type trolley machine; the position of each displacement sensor corresponds to the position of one of gear teeth of the transmission gear; the distance between the two displacement sensors is equal to the tooth space of the transmission gear; and the dry reed pipe is arranged at a correction point of the pin-tooth type trolley machine. The system for protecting the gear trolley machine has reliable performance and a high safety coefficient.
Description
Technical field
The present invention relates to a kind of pin tooth type car pusher control technology, relate in particular to a kind of pin tooth type car pusher protection system and guard method thereof.
Background technology
Coal Production needs producer goods such as a large amount of transporting materials, equipment, aboveground, the main mine car that relies on cage hoisting to be mounted with producer goods of down-hole transportation of these producer goods are finished, big or small each mine car quantity of loading according to cage does not wait, and generally is that two joints are one group.Usually cage is corresponding with pithead position, the well head place is provided with cage chair and the corresponding tramroad that extends, tramroad is provided with winch, car pusher (for example pin tooth type car pusher) and check point thereof are installed near the rail groove of the tramroad cage chair, corresponding preceding car stop and the back car stop that spacing car pusher is installed in the rail groove of the tramroad before and after the check point, the non-working time car pusher is positioned at the check point place, when mine car by winch when tramroad is drawn to the precalculated position, winch and mine car break away from, mine car is rested near the well head, when cage is thus lifted to well head, the signalman opens the safety door of cage, put down and the cage interlock shaking the rocking arm of lifting, open preceding car stop again, car pusher advances cage to mine car by its oil motor power, and car pusher returns to the check point place then, play the rocking arm of preceding car stop and cage chair, shut the safety door of cage.
Wherein, the control of pin tooth type car pusher is finished by the PLC pilot relay, yet because phenomenons such as adhesion or spool be stuck may appear in the contact of relay sometimes, thereby do not cause the pin tooth type car pusher controlled and produce free movement easily.And the pin tooth type car pusher also can cause security incident (control or retreated control of for example advancing can cause the transmission gear of pin tooth type car pusher and its oil motor to take off tooth) in the maloperation in when operation.More than be exactly the problem that the pin tooth type car pusher occurs in actual use, the lighter causes device damage, and weight person mine car occurs and falls into well, causes great casualties and smashes the major accident of downhole production equipment, and the colliery stops production.
Summary of the invention
The object of the present invention is to provide the pin tooth type car pusher protection system and the guard method thereof of a kind of dependable performance, safety.
For achieving the above object; one aspect of the present invention provides a kind of pin tooth type car pusher protection system; comprise PLC; be installed in the magnet on the base of pin tooth type car pusher; two displacement transducers that link to each other with the input end of described PLC respectively; the tongue tube that cooperates with described magnet; the gauge tap of advancing; retreat gauge tap; reset switch; the first hydraulic pump gauge tap; and the forward relay that links to each other with the output terminal of described PLC; reverse relay; the first hydraulic pump relay; the misoperation pilot relay; cage chair pilot relay and sensor faiture alarm relay; wherein; two described displacement transducers are installed on the mounting base of transmission gear of oil motor of described pin tooth type car pusher; each displacement transducer is corresponding with one of them gear position of described transmission gear; distance between two described displacement transducers equates that with the tooth pitch of described transmission gear described tongue tube is installed in the check point place of described pin tooth type car pusher.
Pin tooth type car pusher protection system of the present invention; the model of described PLC is S7-200; one termination of the power input of each described displacement transducer+24V power supply; the 1M terminal of the other end of its power input and described PLC; the 2M terminal is ground connection together; the output terminal correspondence of two displacement transducers links to each other with the I0.4 terminal with the I0.0 terminal of described PLC; one end of described tongue tube; one end of the described gauge tap of advancing; a described end that retreats gauge tap; one end of one end of described reset switch and the described first hydraulic pump gauge tap all connects+the 24V power supply; the other end of described tongue tube; the other end of the described gauge tap of advancing; the described other end that retreats gauge tap; the other end correspondence of the other end of described reset switch and the described first hydraulic pump gauge tap and the I0.3 terminal of described PLC; the I0.1 terminal; the I0.2 terminal; the I0.5 terminal links to each other with the I1.4 terminal; the 1L terminal of described PLC; 2L terminal and 3L terminal connect+the 24V power supply; one end of described forward relay; one end of described reverse relay; one end of the described first hydraulic pump relay; one end of described misoperation pilot relay; the one end correspondence of one end of described cage chair pilot relay and described sensor faiture alarm relay and the Q0.0 terminal of described PLC; the Q0.1 terminal; the Q0.4 terminal; the Q0.6 terminal; the Q1.1 terminal links to each other with the Q1.0 terminal, the other end of described forward relay; the other end of described reverse relay; the other end of the described first hydraulic pump relay; the other end of described misoperation pilot relay; the other end ground connection of the other end of described cage chair pilot relay and described sensor faiture alarm relay.
Pin tooth type car pusher protection system of the present invention; also comprise the second standby hydraulic pump gauge tap and the second hydraulic pump relay; one end of the described second hydraulic pump gauge tap links to each other with the I1.5 terminal of described PLC; another termination+24V power supply; one end of the described second hydraulic pump relay links to each other other end ground connection with the Q0.5 terminal of described PLC.
On the one hand, the present invention also provides a kind of guard method of pin tooth type car pusher, comprises the steps: again
Obtain the number of revolutions of transmission gear of the oil motor of pin tooth type car pusher;
Tooth pitch and described number of revolutions according to described transmission gear are calculated advancing of described pin tooth type car pusher or backway;
If the distance that described pin tooth type car pusher advances surpasses the predefined spacing distance of advancing, forbid that then described pin tooth type car pusher advances, if the distance that described pin tooth type car pusher retreats surpasses the predefined spacing distance that retreats, forbid that then described pin tooth type car pusher retreats.
The guard method of pin tooth type car pusher of the present invention; the described spacing distance of advancing is that described pin tooth type car pusher allows the extreme position that the advances distance to check point, described retreat spacing distance be described pin tooth type car pusher allow the extreme position that retreats to the distance of check point for retreating spacing distance.
The guard method of pin tooth type car pusher of the present invention, the number of revolutions of the transmission gear of the described oil motor that obtains the pin tooth type car pusher specifically comprises the steps:
Receive advancement commands or retreat instruction;
If receive described advancement commands, then starting forward relay advances described pin tooth type car pusher, and first counter that starts self is counted the number of revolutions of the transmission gear of displacement transducer transmission, when if described first counter starts and its current count value still is less than or equal to the numerical value of delaying time preceding after the time-delay some time, then by sensor faiture alarm relay carry-out bit displacement sensor fault alarm information;
If receive the described instruction that retreats, then starting reverse relay retreats described pin tooth type car pusher, and second counter that starts self is counted the number of revolutions of the transmission gear of displacement transducer transmission, when if described second counter starts and its current count value is still more than or equal to the numerical value before the time-delay after the time-delay some time, then by described sensor faiture alarm relay carry-out bit displacement sensor fault alarm information.
The guard method of pin tooth type car pusher of the present invention, the delay time of described first counter and described second counter is 500 milliseconds.
The guard method of pin tooth type car pusher of the present invention also comprises the steps:
When the forward travel distance of described pin tooth type car pusher because of fortuitous event greater than advance spacing apart from the time, send inhibit signal to the cage chair pilot relay, thereby the rocking arm of forbidding cage chair lifts with the safety door of cage and closes, have only when the pin tooth type car pusher retreat into less than advance spacing apart from the time, just allow the rocking arm of cage chair to lift and close with the safety door of cage.
The guard method of pin tooth type car pusher of the present invention is characterized in that,
When the forward relay of described pin tooth type car pusher or reverse relay not during electric unexpected conducting, make the termination of pumping of hydraulic pump relay and carry out sound and light alarm by the misoperation pilot relay.
Pin tooth type car pusher protection system of the present invention comprises LC; be installed in the magnet on the base of pin tooth type car pusher; two displacement transducers that link to each other with the input end of PLC respectively; the tongue tube that cooperates with magnet; the gauge tap of advancing; retreat gauge tap; reset switch; the first hydraulic pump gauge tap; and the forward relay that links to each other with the output terminal of PLC; reverse relay; the first hydraulic pump relay; the misoperation pilot relay; cage chair pilot relay and sensor faiture alarm relay; wherein; two displacement transducers are installed on the mounting base of transmission gear of oil motor of pin tooth type car pusher; each displacement transducer is corresponding with one of them gear position of transmission gear; distance between two displacement transducers equates that with the tooth pitch of transmission gear tongue tube is installed in the check point place of pin tooth type car pusher.During use, be the reference point that puts in place with check point, the magnet that be installed on the base of pin tooth type car pusher this moment makes reed switch conduction near tongue tube, the counter O reset of PLC, and preestablish the pin tooth type car pusher and allow the extreme position that advances to the distance of the reference point that puts in place to be the spacing distance of advancing, and set the pin tooth type car pusher allow the extreme position that retreats to the distance of the reference point that puts in place for retreating spacing distance.When the pin tooth type car pusher advanced operation, the counter of PLC calculated the number of transmission gear rotation, when the distance of advancing equates with the spacing distance of setting of advancing, and the forward relay dead electricity, the pin tooth type car pusher is stopped, and this moment, the pin tooth type car pusher can only retreat.During pin tooth type car pusher fall back, the counter of PLC calculates the number of transmission gear rotation, when backway equates with the spacing distance of retreating of setting, and the reverse relay dead electricity, the pin tooth type car pusher is stopped, and this moment, car pusher can only advance.In addition, when pin tooth type car pusher forward travel distance greater than advancing of setting spacing apart from the time, the rocking arm of cage chair can not lift, the safety door of cage can not be closed, have only the pin tooth type car pusher to return in the spacing distance of advancing of setting, the rocking arm of cage chair just can lift, and the safety door of cage just can be closed.When the forward relay of pin tooth type car pusher or reverse relay in the time must not conducting, pin tooth type car pusher accidental movement, PLC makes the first hydraulic pump relay termination of pumping in the work and carries out sound and light alarm by the misoperation pilot relay immediately.Therefore, pin tooth type car pusher protection system dependable performance of the present invention, safety coefficient height.
Description of drawings
Fig. 1 is the electrical schematic diagram of pin tooth type car pusher protection system of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail:
Pin tooth type car pusher protection system of the present invention comprises that model is the PLC of S7-200; be installed in the magnet on the base of pin tooth type car pusher; two displacement transducers (displacement transducer A and displacement transducer B); the tongue tube K0 that cooperates with magnet; the gauge tap of advancing K1; retreat gauge tap K2; reset switch K3; the first hydraulic pump gauge tap K4; the second hydraulic pump gauge tap K5 and the forward relay 1 that links to each other with the output terminal of PLC; reverse relay 2; the first hydraulic pump relay 3; the second hydraulic pump relay 4; misoperation pilot relay 5; cage chair pilot relay 6 and sensor faiture alarm relay 7.Wherein, two displacement transducers all are installed on the mounting base of transmission gear of oil motor of pin tooth type car pusher by mounting bracket, each displacement transducer is corresponding with one of them gear position of transmission gear, distance between two displacement transducers equates that with the tooth pitch of transmission gear tongue tube K0 is installed in the check point place of pin tooth type car pusher.
With reference to shown in Figure 1, wherein, the model of PLC is S7-200, one termination of the power input of each displacement transducer+24V power supply, the 1M terminal of the other end of its power input and PLC, the 2M terminal is ground connection together, the output terminal correspondence of two displacement transducers links to each other with the I0.4 terminal with the I0.0 terminal of PLC, the end of tongue tube K0, the end of the gauge tap of advancing K1, retreat the end of gauge tap K2, the end of reset switch K3, the end of the end of the first hydraulic pump gauge tap K4 and the second hydraulic pump gauge tap K5 all connects+the 24V power supply, the other end of tongue tube K0, the other end of the gauge tap of advancing K1, retreat the other end of gauge tap K2, the other end of reset switch K3, the other end correspondence of the other end of the first hydraulic pump gauge tap K4 and the second hydraulic pump gauge tap K5 and the I0.3 terminal of PLC, the I0.1 terminal, the I0.2 terminal, the I0.5 terminal, the I1.4 terminal links to each other with the I1.5 terminal, the 1L terminal of PLC, 2L terminal and 3L terminal connect+the 24V power supply, one end of forward relay 1, one end of reverse relay 2, one end of the first hydraulic pump relay 3, one end of the second hydraulic pump relay 4, one end of misoperation pilot relay 5, the one end correspondence of one end of cage chair pilot relay 6 and sensor faiture alarm relay 7 and the Q0.0 terminal of PLC, the Q0.1 terminal, the Q0.4 terminal, the Q0.5 terminal, the Q0.6 terminal, the Q1.1 terminal links to each other with the Q1.0 terminal, the other end of forward relay 1, the other end of reverse relay 2, the other end of the first hydraulic pump relay 3, the other end of the second hydraulic pump relay 4, the other end of misoperation pilot relay 5, the other end ground connection of the other end of cage chair pilot relay 6 and sensor faiture alarm relay 7.Wherein, the first hydraulic pump gauge tap K4 and the first hydraulic pump relay, 3, the second hydraulic pump gauge tap K5 and the active and standby each other usefulness of the second hydraulic pump relay 4 are selected one during use.
Pin tooth type car pusher protection system of the present invention in use; be the reference point that puts in place with check point; the magnet that be installed on the base of pin tooth type car pusher this moment makes tongue tube K0 conducting near tongue tube K0; the counter O reset of PLC; and preestablish the pin tooth type car pusher and allow the extreme position that advances to the distance of the reference point that puts in place to be the spacing distance of advancing, and set the pin tooth type car pusher allow the extreme position that retreats to the distance of the reference point that puts in place for retreating spacing distance.When the tooth-like car pusher of signalman's operative pin, at first the first hydraulic pump gauge tap K4 or the second hydraulic pump gauge tap K5 are opened, the gauge tap K1 that advances that presses the pin tooth type car pusher sends advancement commands to PLC, after PLC receives with forward relay 1 closure, forward relay 1, the transmission gear of the oil motor of pin tooth type car pusher just changes, the pin tooth type car pusher advances, the magnet that is installed on the base of pin tooth type car pusher disconnects tongue tube K0 away from tongue tube K0, conducting and export a count pulse (other situations disconnect) when displacement transducer A and displacement transducer B aim at the gear teeth of transmission gear simultaneously, the counter of PLC then carries out accumulated counts to count pulse, PLC calculates the number of teeth of transmission gear rotation by the number of times of displacement calculating sensors A and displacement transducer B conducting, and the distance of a tooth pitch of transmission gear rotation is a definite value, thereby can calculate the distance that the pin tooth type car pusher advances, distance is advanced spacing distance when equating with setting when advancing, march forward relay 1 of PLC sends brake signal, forward relay 1 dead electricity, the pin tooth type car pusher is forced to stop, this moment, the pin tooth type car pusher can only be drawn back, and before forward travel distance does not reach the spacing distance of advancing, unclamping the gauge tap K1 that advances at any time, the pin tooth type car pusher will stop at any time.After this, retreat instruction if press the gauge tap K2 that retreats of pin tooth type car pusher to the PLC transmission, after PLC receives with reverse relay 2 closures, reverse relay 2, the transmission gear counter-rotating of the oil motor of pin tooth type car pusher, the pin tooth type car pusher retreats, conducting and export a count pulse when displacement transducer A and displacement transducer B aim at the gear teeth of transmission gear simultaneously, the counter of PLC then tires out count pulse and subtracts counting, and calculate the distance that the pin tooth type car pusher retreats in view of the above, when the pin tooth type car pusher returns to when putting reference point in place, the magnet that is installed on the base of pin tooth type car pusher makes tongue tube K0 conducting near tongue tube K0 once more, the counter O reset of PLC, if continue by retreating gauge tap K2, the pin tooth type car pusher continues to retreat, the magnet that is installed on the base of pin tooth type car pusher disconnects tongue tube K0 away from tongue tube K0 once more, the counter of PLC then carries out accumulated counts to follow-up retreating, when after this backway and setting retreat spacing distance and equate, draw back relay 2 of PLC sends brake signals, reverse relay 2 dead electricity, the pin tooth type car pusher is forced to stop, and this moment, the pin tooth type car pusher can only march forward.
In the above-mentioned control procedure of advancing, in case forward travel distance because of fortuitous event greater than advance spacing apart from the time, PLC sends inhibit signal to cage chair pilot relay 6, thereby the rocking arm of forbidding cage chair lifts with the safety door of cage and closes, have only when the pin tooth type car pusher retreat into less than advance spacing apart from the time, PLC just allows the rocking arm of cage chair to lift with the safety door of cage to close.
When the forward relay 1 of pin tooth type car pusher or reverse relay 2 not during electric unexpected conducting, pin tooth type car pusher accidental movement, the counter of PLC begins counting, but in fact this motion causes its closure after PLC receives advancement commands or retreats instruction no thanks to, therefore, belong to above-mentioned phenomenon in case PLC judges, make the first hydraulic pump relay 3 or 4 terminations of pumping of the second hydraulic pump relay in the work and carry out sound and light alarm by misoperation pilot relay 5 immediately.
In the process of advancing of above-mentioned pin tooth type car pusher, if after startup of the counter of PLC and time-delay some time (being generally 500 milliseconds), when the current count value of the counter of PLC still was less than or equal to the numerical value of delaying time preceding, then PLC was by sensor faiture alarm relay 7 carry-out bit displacement sensor fault alarm information.And in the fallback procedures of above-mentioned pin tooth type car pusher, if after startup of the counter of PLC and time-delay some time (being generally 500 milliseconds), the current count value of the counter of PLC is during still more than or equal to the numerical value before the time-delay, and then PLC is by sensor faiture alarm relay 7 carry-out bit displacement sensor fault alarm information.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (9)
1. pin tooth type car pusher protection system; it is characterized in that; comprise PLC; be installed in the magnet on the base of pin tooth type car pusher; two displacement transducers that link to each other with the input end of described PLC respectively; the tongue tube that cooperates with described magnet; the gauge tap of advancing; retreat gauge tap; reset switch; the first hydraulic pump gauge tap; and the forward relay that links to each other with the output terminal of described PLC; reverse relay; the first hydraulic pump relay; the misoperation pilot relay; cage chair pilot relay and sensor faiture alarm relay; wherein; two described displacement transducers are installed on the mounting base of transmission gear of oil motor of described pin tooth type car pusher; each displacement transducer is corresponding with one of them gear position of described transmission gear; distance between two described displacement transducers equates that with the tooth pitch of described transmission gear described tongue tube is installed in the check point place of described pin tooth type car pusher.
2. pin tooth type car pusher protection system according to claim 1; it is characterized in that; the model of described PLC is S7-200; one termination of the power input of each described displacement transducer+24V power supply; the 1M terminal of the other end of its power input and described PLC; the 2M terminal is ground connection together; the output terminal correspondence of two displacement transducers links to each other with the I0.4 terminal with the I0.0 terminal of described PLC; one end of described tongue tube; one end of the described gauge tap of advancing; a described end that retreats gauge tap; one end of one end of described reset switch and the described first hydraulic pump gauge tap all connects+the 24V power supply; the other end of described tongue tube; the other end of the described gauge tap of advancing; the described other end that retreats gauge tap; the other end correspondence of the other end of described reset switch and the described first hydraulic pump gauge tap and the I0.3 terminal of described PLC; the I0.1 terminal; the I0.2 terminal; the I0.5 terminal links to each other with the I1.4 terminal; the 1L terminal of described PLC; 2L terminal and 3L terminal connect+the 24V power supply; one end of described forward relay; one end of described reverse relay; one end of the described first hydraulic pump relay; one end of described misoperation pilot relay; the one end correspondence of one end of described cage chair pilot relay and described sensor faiture alarm relay and the Q0.0 terminal of described PLC; the Q0.1 terminal; the Q0.4 terminal; the Q0.6 terminal; the Q1.1 terminal links to each other with the Q1.0 terminal, the other end of described forward relay; the other end of described reverse relay; the other end of the described first hydraulic pump relay; the other end of described misoperation pilot relay; the other end ground connection of the other end of described cage chair pilot relay and described sensor faiture alarm relay.
3. pin tooth type car pusher protection system according to claim 2; it is characterized in that; also comprise the second standby hydraulic pump gauge tap and the second hydraulic pump relay; one end of the described second hydraulic pump gauge tap links to each other with the I1.5 terminal of described PLC; another termination+24V power supply; one end of the described second hydraulic pump relay links to each other other end ground connection with the Q0.5 terminal of described PLC.
4. the guard method of the described pin tooth type car pusher of claim 1 protection system is characterized in that, comprises the steps:
Obtain the number of revolutions of transmission gear of the oil motor of pin tooth type car pusher;
Tooth pitch and described number of revolutions according to described transmission gear are calculated advancing of described pin tooth type car pusher or backway;
If the distance that described pin tooth type car pusher advances surpasses the predefined spacing distance of advancing, forbid that then described pin tooth type car pusher advances, if the distance that described pin tooth type car pusher retreats surpasses the predefined spacing distance that retreats, forbid that then described pin tooth type car pusher retreats.
5. the guard method of pin tooth type car pusher according to claim 4; it is characterized in that; the described spacing distance of advancing is that described pin tooth type car pusher allows the extreme position that the advances distance to check point, described retreat spacing distance be described pin tooth type car pusher allow the extreme position that retreats to the distance of check point for retreating spacing distance.
6. the guard method of pin tooth type car pusher according to claim 5 is characterized in that, the number of revolutions of the transmission gear of the described oil motor that obtains the pin tooth type car pusher specifically comprises the steps:
Receive advancement commands or retreat instruction;
If receive described advancement commands, then starting forward relay advances described pin tooth type car pusher, and first counter that starts self is counted the number of revolutions of the transmission gear of displacement transducer transmission, when if described first counter starts and its current count value still is less than or equal to the numerical value of delaying time preceding after the time-delay some time, then by sensor faiture alarm relay carry-out bit displacement sensor fault alarm information;
If receive the described instruction that retreats, then starting reverse relay retreats described pin tooth type car pusher, and second counter that starts self is counted the number of revolutions of the transmission gear of displacement transducer transmission, when if described second counter starts and its current count value is still more than or equal to the numerical value before the time-delay after the time-delay some time, then by described sensor faiture alarm relay carry-out bit displacement sensor fault alarm information.
7. the guard method of pin tooth type car pusher according to claim 6 is characterized in that, the delay time of described first counter and described second counter is 500 milliseconds.
8. the guard method of pin tooth type car pusher according to claim 7 is characterized in that, also comprises the steps:
When the forward travel distance of described pin tooth type car pusher because of fortuitous event greater than advance spacing apart from the time, send inhibit signal to the cage chair pilot relay, thereby the rocking arm of forbidding cage chair lifts with the safety door of cage and closes, have only when the pin tooth type car pusher retreat into less than advance spacing apart from the time, just allow the rocking arm of described cage chair to lift and close with the safety door of described cage.
9. the guard method of pin tooth type car pusher according to claim 8 is characterized in that,
When the forward relay of described pin tooth type car pusher or reverse relay not during electric unexpected conducting, make the termination of pumping of hydraulic pump relay and carry out sound and light alarm by the misoperation pilot relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082648 CN102231064B (en) | 2011-04-01 | 2011-04-01 | System and method for protecting pin-tooth type trolley machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082648 CN102231064B (en) | 2011-04-01 | 2011-04-01 | System and method for protecting pin-tooth type trolley machine |
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| Publication Number | Publication Date |
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| CN102231064A true CN102231064A (en) | 2011-11-02 |
| CN102231064B CN102231064B (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110082648 Expired - Fee Related CN102231064B (en) | 2011-04-01 | 2011-04-01 | System and method for protecting pin-tooth type trolley machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576580A (en) * | 2013-11-25 | 2014-02-12 | 中国石油集团川庆钻探工程有限公司川东钻探公司 | Underground cableway platform control system capable of preventing top drive flying rings from collision and suspension |
| CN104110686A (en) * | 2014-07-04 | 2014-10-22 | 光大环保（中国）有限公司 | Control system and method for feeding protection of feeding grate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080217434A1 (en) * | 2005-08-30 | 2008-09-11 | Weidmann Plastics Technology Ag | Shower Attachment |
| CN201138438Y (en) * | 2007-11-13 | 2008-10-22 | 左增民 | Automatic controlled system for coal mine down-hole inclined gallery security |
| CN201433033Y (en) * | 2009-01-19 | 2010-03-31 | 黑龙江龙煤矿业集团有限责任公司七台河分公司 | Winch and inclined shaft normally closed type car stopping system and device |
| CN202038322U (en) * | 2011-04-01 | 2011-11-16 | 安徽泰丰矿用自动化研究开发有限公司 | Protection system for pin-gear car puller |
-
2011
- 2011-04-01 CN CN 201110082648 patent/CN102231064B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080217434A1 (en) * | 2005-08-30 | 2008-09-11 | Weidmann Plastics Technology Ag | Shower Attachment |
| CN201138438Y (en) * | 2007-11-13 | 2008-10-22 | 左增民 | Automatic controlled system for coal mine down-hole inclined gallery security |
| CN201433033Y (en) * | 2009-01-19 | 2010-03-31 | 黑龙江龙煤矿业集团有限责任公司七台河分公司 | Winch and inclined shaft normally closed type car stopping system and device |
| CN202038322U (en) * | 2011-04-01 | 2011-11-16 | 安徽泰丰矿用自动化研究开发有限公司 | Protection system for pin-gear car puller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576580A (en) * | 2013-11-25 | 2014-02-12 | 中国石油集团川庆钻探工程有限公司川东钻探公司 | Underground cableway platform control system capable of preventing top drive flying rings from collision and suspension |
| CN103576580B (en) * | 2013-11-25 | 2019-01-08 | 中国石油集团川庆钻探工程有限公司川东钻探公司 | It prevents top from driving hanging ring and touches extension monkey bench control system |
| CN104110686A (en) * | 2014-07-04 | 2014-10-22 | 光大环保（中国）有限公司 | Control system and method for feeding protection of feeding grate |
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| Publication number | Publication date |
|---|---|
| CN102231064B (en) | 2013-05-29 |
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