CN211654622U - Novel interlocking device for mining and transportation - Google Patents
Novel interlocking device for mining and transportation Download PDFInfo
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- CN211654622U CN211654622U CN202020801177.2U CN202020801177U CN211654622U CN 211654622 U CN211654622 U CN 211654622U CN 202020801177 U CN202020801177 U CN 202020801177U CN 211654622 U CN211654622 U CN 211654622U
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- 238000005065 mining Methods 0.000 title claims abstract description 76
- 239000003245 coal Substances 0.000 claims abstract description 20
- 238000004880 explosion Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 102100028175 Abasic site processing protein HMCES Human genes 0.000 description 1
- 101001006387 Homo sapiens Abasic site processing protein HMCES Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a novel mining and transportation interlocking device, which is applied to a combination switch, wherein the combination switch comprises a flameproof cavity, the mining and transportation interlocking device comprises a mining and transportation interlocking circuit arranged in the flameproof cavity, and the mining and transportation interlocking circuit comprises a power supply box and a relay; the input end of the power box is connected with the power output end of the combination switch, the positive output end of the power box is connected with one end of the relay coil power supply, the other end of the relay coil power supply is connected with the mining and transportation interlocking button arranged on the coal mining machine through a core wire and then connected with the negative output end of the power box, and the normally open contact of the relay is connected in series in the conveyor starting control loop of the external control console; the effect is as follows: the characteristics of strong direct current anti-interference capability are utilized, and the design is simple, safe and practical; and design according to the explosion-proof chamber space of combination switch, utilize the residual space, occupation space is little, can not cause the hindrance for other maintenance operations of switch, and is convenient for fix, can not cause the switch to lose and explode, and the practicality is higher.
Description
Technical Field
The utility model belongs to the technical field of coal mining, concretely relates to novel adopt fortune interlock.
Background
The fully mechanized coal mining face is a main link of modern coal mine production, and is a system with the most equipment, the worst environment and the most complex work in the coal mine production. The existing mining and transportation interlocking device realizes the locking of the scraper conveyer on the coal mining machine through a 'transportation locking' button on the machine body of the coal mining machine, provides a safe operation environment for a driver of the coal mining machine and a maintainer of the coal mining machine, and avoids the operations of adding picks and the like on a roadway; however, in the prior art, the core wires of the coal mining machine are connected in series and are directly connected in series to a conveyor control loop of the console, and this mode easily causes electric signal interference, causes that the conveyor cannot be started or the conveyor is started by mistake, and affects normal safety production;
the prior art also discloses a mode of utilizing a self-contained mining interlocking device on a six-combination switch of a working face, and the mode has the following defects: the conveyor can be started on the premise that the six-combination switch is started, and the contactor module of the six-combination switch only uses one set of normally-open auxiliary nodes to avoid electric signal interference, so that the cost is high, the six-combination switch is in a no-load opening state for a long time, the fault rate is high, and further the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a novel adopt and transport interlocking device to overcome the defect that the cost is high in the prior art.
The utility model discloses the technical scheme who takes does: a novel mining and transportation interlocking device is applied to a combined switch, the combined switch comprises a explosion-proof cavity, the mining and transportation interlocking device comprises a mining and transportation interlocking circuit arranged in the explosion-proof cavity, and the mining and transportation interlocking circuit comprises a power supply box and a relay;
the input end of the power supply box is connected with the power output end of the combination switch, the positive output end of the power supply box is connected with one end of the relay coil power supply, the other end of the relay coil power supply is connected with the mining interlocking button arranged on the coal mining machine through a core wire and then connected with the negative output end of the power supply box, and the normally open contact of the relay is connected in series in the starting control loop of the conveyor of the external control console.
Preferably, the normally closed contact of the relay is connected in series in a light signal loop of an external console;
in such a mode, the mining and transportation interlocking signal lamp is lightened to remind workers of the control console that the mining and transportation interlocking of the fully mechanized mining face is started, and if the conveyor needs to be started, the corresponding mining and transportation interlocking is released after the confirmation with operators on the coal mining machine.
Preferably, the light signal loop comprises a signal lamp, and the signal lamp is an explosion-proof signal lamp; the reminding mode is safe and reliable, and the safety requirement of the special coal mining industry is met.
Preferably, the power supply box is an FPWR non-intrinsic safety power supply box for converting alternating current into direct current; the characteristic of strong direct current anti-interference capability is utilized, and power is independently supplied, so that the stable operation of the mining and transportation interlocking device is ensured.
Preferably, the relay is a direct current relay; the action is reliable, and the independent electric signals can isolate the interference of the console.
Preferably, a first fuse is further arranged between the positive output end of the power supply box and the relay.
Preferably, two ends of the relay coil power supply are further connected with a diode, an anode of the diode is connected with the other end of the relay coil power supply, and a cathode of the diode is connected with one end of the relay coil power supply; by the connection mode, the diode is used as a freewheeling diode, so that the relay coil is prevented from being burnt by induced current when the power supply is suddenly disconnected, the direct-current relay is protected, and the reliability of the device is improved.
Preferably, a second fuse is connected between the negative output end of the power supply box and the mining and transportation interlocking button in series.
Preferably, the mining and transportation interlocking button is explosion-proof.
By adopting the technical scheme, the method has the following advantages: the utility model provides a novel mining and transporting interlocking device which utilizes the characteristic of strong direct current anti-interference capability, has simple design structure, is safe and practical; and design according to the explosion-proof chamber space of combination switch, utilize the residual space, occupation space is little, and is more reasonable, can not cause the hindrance for other maintenance operations of switch, and is convenient for fix, can not cause the switch to lose to explode, and the practicality is higher.
Drawings
Fig. 1 is a schematic connection diagram of a main circuit of an interlocking circuit for mining and transportation according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a connection between a mining interlock button and a coal mining machine according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a starting control loop of a conveyor provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a light signal circuit provided in an embodiment of the present invention.
Detailed Description
To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be made with reference to the accompanying drawings and specific embodiments, and the description herein does not mean that all the subject matters corresponding to the specific examples set forth in the embodiments are cited in the claims.
Referring to fig. 1 to 4, a novel mining and transportation interlocking device is applied to a combination switch, the combination switch includes a flameproof cavity, the mining and transportation interlocking device includes a mining and transportation interlocking circuit arranged in the flameproof cavity, and the mining and transportation interlocking circuit includes a power supply box and a relay;
the input end of the power supply box is connected with the power output end of the combination switch, the positive output end of the power supply box is connected with one end of the relay coil power supply, the other end of the relay coil power supply is connected with the mining interlocking button arranged on the coal mining machine through a core wire and then connected with the negative output end of the power supply box, and the normally open contact of the relay is connected in series in the starting control loop of the conveyor of the external control console.
When in application, the combination switch is a 3300V six combination switch, which is used for controlling a coal mining machine and a conveyor of a fully mechanized mining face, and meanwhile, the explosion-proof cavity of the combination switch comprises a 127V power output end special for the explosion-proof cavity, which is the power output end described above, and it should be clear to those skilled in the art that details are not described herein; the power supply box is an FPWR non-intrinsic safety power supply box used for converting alternating current into direct current; the relay adopts a direct current relay; a first fuse is further arranged between the positive output end of the power supply box and the relay; the mining and transportation interlocking button is explosion-proof.
In this embodiment, as can be seen from fig. 1 and 2, the power supply of the mining interlock circuit is introduced into a 127V power supply output end dedicated to a flameproof cavity in a six-combination switch to meet the coal safety regulations, the power supply is led out from an AC127V power supply output end dedicated to the flameproof cavity and is connected into an FPWR non-intrinsic safety power supply box to obtain a DC12V power supply through conversion, the DC12 power supply is sent out from a positive electrode, passes through a fuse FU1, i.e., a first fuse, and is connected in series with a 12V DC relay KA coil, and then passes through two core wires W1.7 and W1.8 controlled to be closed in a coal cutter main cable, the W1.7 is connected with one end of the mining interlock button, and the other end of the mining interlock button is connected with the W1.8 and then enters into an FPWR negative electrode to form.
Further, referring to fig. 4, the normally closed contact of the relay is connected in series in the light signal loop of the external console; the light signal circuit includes a signal light, which is an explosion-proof signal light, and is represented by L1 in fig. 4.
Furthermore, in order to protect the coil of the direct current relay, the reliability of the device is also improved; the two ends of the relay coil power supply are also connected with diodes, the anode of each diode is connected with the other end of the relay coil power supply, and the cathode of each diode is connected with one end of the relay coil power supply; and a second fuse, namely a fuse FU2, is also connected in series between the negative output end of the power supply box and the mining and transportation interlocking button.
In combination with the drawings, during operation, when the mining and transportation interlocking button SBY is not pressed, the relay KA is electrified, the normally open contact KA1 is closed, the control console presses the conveyor starting button SB1, the control loop is conducted, the conveyor is started, the normally closed contact KA2 is disconnected, and the mining and transportation interlocking signal lamp is turned off; when the SBY is pressed down, the relay KA loses power, the normally open contact KA1 is in an open state, the control loop cannot form a loop, the conveyor cannot be started, the normally closed contact KA2 is in a closed state, the mining and transportation interlocking signal lamp is on, the control console is reminded, the mining and transportation interlocking of the fully-mechanized mining face is started, and the mining and transportation interlocking is released after the conveyor needs to be started and confirmed by operators on the coal mining machine if the conveyor needs to be started.
By the scheme, the characteristic of strong direct current anti-interference capability is utilized, and the design structure is simple, safe and practical; the explosion-proof switch is designed according to the explosion-proof cavity space of the combined switch, the residual space is utilized, the occupied space is small, the reasonability is realized, the obstruction to other maintenance operations of the switch is avoided, the fixation is convenient, the switch is not subjected to explosion loss, and the practicability is higher; meanwhile, a normally closed node of the relay is externally connected with a group of explosion-proof signal lamps to serve as a prompt signal of the mining and transportation interlocking to prompt that the mining and transportation interlocking of the fully mechanized mining face is started, and the defect that the conventional mining and transportation interlocking device has no signal display is overcome.
Finally, it should be noted that the above description is a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. A novel mining and transportation interlocking device is applied to a combined switch and is characterized in that the combined switch comprises a explosion-proof cavity, the mining and transportation interlocking device comprises a mining and transportation interlocking circuit arranged in the explosion-proof cavity, and the mining and transportation interlocking circuit comprises a power supply box and a relay;
the input end of the power supply box is connected with the power output end of the combination switch, the positive output end of the power supply box is connected with one end of the relay coil power supply, the other end of the relay coil power supply is connected with the mining interlocking button arranged on the coal mining machine through a core wire and then connected with the negative output end of the power supply box, and the normally open contact of the relay is connected in series in the starting control loop of the conveyor of the external control console.
2. The mining interlock of claim 1 wherein the normally closed contacts of the relay are connected in series in the light signal circuit of the external control station.
3. The mining interlock of claim 2 wherein the light signal circuit includes a signal light, the signal light being an explosion-proof signal light.
4. The new mining interlock of claim 1, wherein the power pack is an FPWR non-intrinsically safe power pack for converting alternating current to direct current.
5. The novel mining interlock of claim 1, wherein the relay is a dc relay.
6. The novel mining and transportation interlocking device as claimed in any one of claims 1 to 5, wherein a first fuse is further arranged between the positive output end of the power supply box and the relay.
7. The novel mining interlocking device as claimed in claim 6, wherein a diode is further connected to each end of the relay coil power supply, the anode of the diode is connected to the other end of the relay coil power supply, and the cathode of the diode is connected to one end of the relay coil power supply.
8. The novel mining and transportation interlocking device as claimed in claim 7, wherein a second fuse is connected in series between the negative output end of the power supply box and the mining and transportation interlocking button.
9. The new mining interlock of claim 1 wherein the mining interlock button is explosion proof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020801177.2U CN211654622U (en) | 2020-05-14 | 2020-05-14 | Novel interlocking device for mining and transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020801177.2U CN211654622U (en) | 2020-05-14 | 2020-05-14 | Novel interlocking device for mining and transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211654622U true CN211654622U (en) | 2020-10-09 |
Family
ID=72690325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020801177.2U Expired - Fee Related CN211654622U (en) | 2020-05-14 | 2020-05-14 | Novel interlocking device for mining and transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211654622U (en) |
-
2020
- 2020-05-14 CN CN202020801177.2U patent/CN211654622U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |