CN212638941U - Conveyor protection control device - Google Patents
Conveyor protection control device Download PDFInfo
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- CN212638941U CN212638941U CN202021320110.3U CN202021320110U CN212638941U CN 212638941 U CN212638941 U CN 212638941U CN 202021320110 U CN202021320110 U CN 202021320110U CN 212638941 U CN212638941 U CN 212638941U
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- protection control
- conveyor
- control device
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- explosion
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Abstract
The utility model discloses a conveyer protection control device: the explosion-proof device comprises an explosion-proof cavity body consisting of a horizontal disc and a top cylinder, wherein the explosion-proof cavity body is hung at one end of the discharging of a conveyor, at least two mercury switches are uniformly arranged in the horizontal disc along the circumference, and pins of all the mercury switches are electrically connected to a protection control system of the conveyor after being connected in parallel. The mercury switch of the utility model is horizontally arranged on the horizontal disc, when coal piling accidents happen, coal is piled up to ensure that at least one mercury switch of the horizontal disc can incline to connect a circuit, then a signal is transmitted to a protection control system of a conveyor, and the conveyor is stopped, thereby preventing the coal from being piled up continuously; the utility model discloses basically eliminated the influence of external environment such as coal dust harassment, moisture corrosion, the good operation, the reliability is high.
Description
Technical Field
The utility model relates to a mining equipment technical field, concretely relates to conveyer protection control device.
Background
In large modern coal mines, almost all coal mine transportation links are completed by belt conveyors. With the continuous progress and development of society, the requirement of modern mines on the automation degree of coal mine production and production equipment is higher and higher, and the requirement on a protection control system of a belt conveyor is also higher and higher. The coal piling protection device is a very important protection in the centralized protection control device of the conveyor, once a coal piling accident occurs, the piling speed is very high, and if the conveyor stops in time, the conveyor head can be submerged by coal in a short period; if the transmission mechanisms such as the motor reduction box and the like are covered by coal to block rotation, the belt conveyor can overload and block rotation, the belt conveyor can be directly burnt down when the belt conveyor is not stopped in time, even the belt is torn, serious equipment damage is caused, and personnel safety is endangered.
Most of the existing coal piling sensors are based on travel switches, and due to the particularity of the underground environment of the coal mine, a sensing mechanism and the travel switches of the coal piling sensors are easily affected by external environments such as coal dust intrusion, moisture corrosion and the like, and the durability, the sensitivity and the reliability of the coal piling sensors are not ideal.
SUMMERY OF THE UTILITY MODEL
In order to improve durability, sensitivity and reliability of the coal piling sensor, the utility model provides a conveyor protection control device.
The utility model adopts the technical scheme as follows: the utility model provides a conveyer protection control device, includes the flame proof cavity that horizontal disc and top cylinder are constituteed, the flame proof cavity hangs in the one end of conveyer ejection of compact, evenly arranged along the circumference in the horizontal disc has two at least mercury switches, all the pin of mercury switch is parallelly connected the back, is connected to the protection control system of conveyer.
The utility model has the advantages that: the mercury switch of the utility model is horizontally arranged on the horizontal disc, when coal piling accidents happen, coal is piled up to ensure that at least one mercury switch of the horizontal disc can incline to connect a circuit, then a signal is transmitted to a protection control system of a conveyor, and the conveyor is stopped, thereby preventing the coal from being piled up continuously; the utility model discloses basically eliminated the influence of external environment such as coal dust harassment, moisture corrosion, the good operation, the reliability is high.
Preferably: the lower surface of the horizontal disc is provided with a vertical connecting rod, and the lower end of the vertical connecting rod is provided with a plumb bob.
Preferably: the vertical connecting rod and the plumb are in threaded connection and detachable structure.
Preferably: the horizontal disc is internally provided with a relay and a lithium battery, all the pins of the mercury switch are connected in parallel and then connected with the lithium battery and the coil end of the relay in series, and the load end of the relay is electrically connected to a conveyor protection control system.
Preferably: the top of the top barrel is provided with a lifting ring and a threading hole, and the threading hole is provided with an explosion-proof sealing sleeve.
Preferably: and the edge of the upper surface of the horizontal disc is provided with a connecting ring, and the connecting ring is connected with the inner wall of the top cylinder through an explosion-proof thread.
Preferably: and two ends of the mercury switch are arranged close to the edge of the connecting ring.
Preferably: the horizontal disc and the top cylinder are plastic shells.
Drawings
Fig. 1 is a schematic view of installation and operation of the embodiment of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
Fig. 3 is an exploded view of an embodiment of the present invention (with the electrical wires omitted).
Fig. 4 is a schematic circuit diagram of an embodiment of the present invention.
The coal pile explosion-proof device comprises a horizontal disc 100, a connecting ring 101, a top cylinder 200, a hanging ring 201, a threading hole 202, a mercury switch 300, a vertical connecting rod 400, a plumb bob 500, a relay 600, a lithium battery 700, an explosion-proof sealing sleeve 800, a conveyor 900 and a coal pile 001.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
In the embodiments, as shown in FIGS. 1 to 4: the utility model provides a conveyer protection control device, includes the flame proof cavity that horizontal disc 100 and top cylinder 200 constitute, the flame proof cavity hangs in the one end of conveyer ejection of compact, evenly arranged along the circumference in the horizontal disc 100 has two at least mercury switches 300, all mercury switch 300's pin is connected the back in parallel, is connected to conveyer 900's protection control system electrically. Referring to fig. 1, the explosion-proof chamber of this embodiment is suspended at one end of the conveyor 900 for discharging, and the center of gravity is adjusted by a counterweight, so that the horizontal disc 100 is kept horizontal, that is, the mercury switch 300 is horizontally installed on the horizontal disc 100. As shown in fig. 4, the mercury switch 300 can be understood as a plastic container storing a small drop of mercury, into which an inert gas or vacuum is injected, when the mercury switch 300 is tilted to an operating angle, the mercury will flow toward a lower position in the container due to gravity, and if 2 electrodes are simultaneously touched, the mercury switch 300 will close the circuit. When coal piling accidents happen, at least one mercury switch 300 on the horizontal disc 100 is inclined to connect a circuit due to coal piling, then a signal is transmitted to a protection control system of the conveyor 900, and the conveyor 900 is stopped, so that coal is prevented from being piled continuously; the utility model discloses basically eliminated the influence of external environment such as coal dust harassment, moisture corrosion, the good operation, the reliability is high.
In the embodiments, as shown in FIGS. 2 to 3: the lower surface of the horizontal disc 100 is provided with a vertical connecting rod 400, and the lower end of the vertical connecting rod 400 is provided with a plumb bob 500. In this embodiment, the vertical connecting rod 400 and the plumb 500 extending downward from the horizontal plate 100 are in contact with the coal pile 001, so as to avoid direct contact with the coal pile 001 and damage. The weight of the plumb bob 500 is larger, so that the horizontal disc 100 has enough stability when being suspended, and the misoperation caused by wind blowing or the inclination of coal block striking is avoided.
In the example, as shown in fig. 3: the vertical link 400 and the plumb bob 500 are in a detachable structure in a threaded connection. The plumb bob 500 can be conveniently detached and cleaned after being stuck with coal, and other maintenance can be conveniently carried out.
In the embodiment, as shown in fig. 3 and 4: the horizontal disc 100 is internally provided with a relay 600 and a lithium battery 700, all the pins of the mercury switch 300 are connected in parallel and then connected with the lithium battery 700 and the coil end of the relay 600 in series, and the load end of the relay 600 is electrically connected to a conveyor protection control system. The relay 600 of the present embodiment has a time delay function, and thus does not transmit a switching value signal to the protection control system even when the mercury switch 300 is momentarily tilted due to external factors such as wind blow and collision.
In the example, as shown in fig. 3: the top of the top barrel 200 is provided with a hanging ring 201 and a threading hole 202, and the threading hole 202 is provided with an explosion-proof sealing sleeve 800. The rings 201 of the embodiment are convenient to hang and debug, and the explosion-proof sealing sleeve 800 can ensure the explosion-proof performance of the device.
In the example, as shown in fig. 3: the edge of the upper surface of the horizontal disc 100 is provided with a connecting ring 101, and the connecting ring 101 is connected with the inner wall of the top cylinder 200 through an explosion-proof thread. In the embodiment, the connection ring 101 has a certain height, so that the tightness of the connection can be ensured, and the explosion-proof performance can also be ensured by using the explosion-proof thread.
In the example, as shown in fig. 3: both ends of the mercury switch 300 are disposed against the edge of the connection ring 101. Since the mercury switch 300 of the present embodiment is disposed on the edge as much as possible, the sensitivity can be improved, and the mercury switch 300 can respond even if the horizontal plate 100 is tilted at a small angle.
In an embodiment, the horizontal plate 100 and the top barrel 200 are plastic housings. The weight of the plastic shell is lighter, so that the counterweight stabilizing effect of the plumb bob 500 is better, and the detection stability of the device is further improved.
It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Obvious changes or variations coming within the spirit of the invention are intended to be covered by the scope of the invention.
Claims (8)
1. A conveyor protection control device is characterized in that: the explosion-proof cavity comprises a horizontal disc (100) and a top cylinder (200), the explosion-proof cavity is hung at one end of the conveyor for discharging, at least two mercury switches (300) are uniformly arranged in the horizontal disc (100) along the circumference, and pins of the mercury switches (300) are connected in parallel and then electrically connected to a protection control system of the conveyor (900).
2. The conveyor protection control device according to claim 1, characterized in that: the lower surface of the horizontal disc (100) is provided with a vertical connecting rod (400), and the lower end of the vertical connecting rod (400) is provided with a plumb bob (500).
3. The conveyor protection control device according to claim 2, characterized in that: the vertical connecting rod (400) and the plumb bob (500) are in threaded connection and detachable structures.
4. The conveyor protection control device according to claim 1, characterized in that: be equipped with relay (600) and lithium cell (700) in horizontal dish (100), all the pin of mercury switch (300) after the hookup with lithium cell (700), the coil end series connection of relay (600), the load end electric connection of relay (600) is to the protection control system of conveyer (900).
5. The conveyor protection control device according to claim 1, characterized in that: the top of the top barrel (200) is provided with a hanging ring (201) and a threading hole (202), and an explosion-proof sealing sleeve (800) is installed on the threading hole (202).
6. The conveyor protection control device according to claim 1, characterized in that: the edge of the upper surface of the horizontal disc (100) is provided with a connecting ring (101), and the connecting ring (101) is connected with the inner wall of the top cylinder (200) through explosion-proof threads.
7. The conveyor protection control device according to claim 6, characterized in that: the two ends of the mercury switch (300) are arranged close to the edge of the connecting ring (101).
8. The conveyor protection control device according to claim 1, characterized in that: the horizontal disc (100) and the top cylinder (200) are plastic shells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320110.3U CN212638941U (en) | 2020-07-08 | 2020-07-08 | Conveyor protection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320110.3U CN212638941U (en) | 2020-07-08 | 2020-07-08 | Conveyor protection control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212638941U true CN212638941U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021320110.3U Active CN212638941U (en) | 2020-07-08 | 2020-07-08 | Conveyor protection control device |
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| CN (1) | CN212638941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086560A (en) * | 2021-04-22 | 2021-07-09 | 中滦科技股份有限公司 | Universal anti-coal-piling protection device and coal-piling protection method |
| CN113291848A (en) * | 2021-05-28 | 2021-08-24 | 鞍钢集团矿业有限公司 | Belt leakage stoppage early warning control system and early warning method |
-
2020
- 2020-07-08 CN CN202021320110.3U patent/CN212638941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086560A (en) * | 2021-04-22 | 2021-07-09 | 中滦科技股份有限公司 | Universal anti-coal-piling protection device and coal-piling protection method |
| CN113291848A (en) * | 2021-05-28 | 2021-08-24 | 鞍钢集团矿业有限公司 | Belt leakage stoppage early warning control system and early warning method |
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