CN212923169U - Coal face height limit protection device for coal mine conveying belt - Google Patents
Coal face height limit protection device for coal mine conveying belt Download PDFInfo
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- CN212923169U CN212923169U CN202021423924.XU CN202021423924U CN212923169U CN 212923169 U CN212923169 U CN 212923169U CN 202021423924 U CN202021423924 U CN 202021423924U CN 212923169 U CN212923169 U CN 212923169U
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- magnet steel
- coal
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Abstract
The utility model relates to a colliery field, concretely relates to coal face limit for height protection device for colliery conveyer belt. Coal face limit for height protection device for colliery conveyer belt, including standing in hollow stand in conveyer belt both sides, limit for height regulating part, response magnetic switch, delay timer, audible-visual annunciator, response magnetic switch includes magnet steel and limit switch, the magnet steel sets up on limit for height regulating part, the magnet steel is mutually supported with limit switch, realizes the on-off control to the circuit, limit switch is connected with the delay timer electricity, the delay timer is connected with audible-visual annunciator electricity. The device can prevent larger gangue or sundries from being blocked at the device to form blockage, so that the conveyer belt is prevented from being worn or torn; the audible and visual alarm is sent out through the audible and visual alarm, a driver is timely reminded of timely handling, the time delay unit is arranged, the alarm is sent out due to mistaken collision, the safety of coal mine production is improved, and major accidents can be effectively avoided.
Description
The technical field is as follows:
the utility model relates to a colliery field, concretely relates to coal face limit for height protection device for colliery conveyer belt.
Background art:
the nine-large protection device of the underground conveyor mainly aims to ensure the safe and normal operation of the conveyor, and can act to prompt the conveyor to stop under the conditions of over-temperature, slipping, smog, deviation and the like. However, in nine-large protection, no protection device can limit the excessive gangue and metal waste (such as anchor rods) on the conveying belt, the conveying belt is likely to be greatly damaged in the operation process, particularly, the excessive material is likely to be blocked at the unloading point of the machine head and injure the conveying belt at the unloading point of the machine head, if one end of the anchor rod is inserted at the position of the machine head bin and the other end of the anchor rod is inserted at the position of the conveying belt of the machine head, the whole conveying belt is likely to be torn, and when the condition is serious, a belt tearing accident is likely to be caused. At present, current limit for height protection generally sets up simple baffle, and the coal face that will surpass under the baffle along keeps off down, when through great waste rock, blocks easily between baffle and transmission band, forms the jam, causes the wearing and tearing of conveyer belt.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a coal face limit for height protection device for colliery conveyer belt, the technical problem of solution is: overcome current coal face limit for height device and block great waste rock or debris in the conveyer belt transportation in the device department, form the jam, cause the wearing and tearing of conveyer belt, for solving above-mentioned technical problem, the utility model discloses the technical scheme who adopts is:
coal face limit for height protection device for colliery conveyer belt, including standing in hollow stand in conveyer belt both sides, limit for height regulating part, response magnetic switch, delay timer, audible-visual annunciator, response magnetic switch includes magnet steel and limit switch, the magnet steel sets up on limit for height regulating part, the magnet steel is mutually supported with limit switch, realizes the on-off control to the circuit, limit switch is connected with the delay timer electricity, the delay timer is connected with audible-visual annunciator electricity.
Further, limit for height regulating part is including setting up the horizontal pole in the transmission band top, the one end and the pole setting of horizontal pole link to each other, the other end of pole setting passes the stand and is connected with the fixed plate, the pole setting is connected with the stand with the rotation mode, the magnet steel sets up on the fixed plate.
Furthermore, the outer surface of the vertical rod is sleeved with a torsion spring, one end of the torsion spring is fixed on the vertical rod, and the other end of the torsion spring is fixed on the vertical rod.
Further, the limit switch adopts the model: KBXC1/127-1 mining explosion-proof travel switch.
Further, the audible and visual alarm adopts the following models: KXH127 combined annunciators.
The utility model has the advantages that: the utility model has reasonable and reliable structural design, and can prevent larger gangue or sundries from being blocked at the device to form blockage, which causes the abrasion or tearing of the conveyer belt; the audible and visual alarm is sent out through the audible and visual alarm, a driver is timely reminded of timely handling, the time delay unit is arranged, the alarm is sent out due to mistaken collision, the safety of coal mine production is improved, and major accidents can be effectively avoided.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic diagram of the circuit principle of the present invention.
In the figure: 1. the device comprises a cross rod, 2, a vertical rod, 3, a stand column, 4, a fixing plate, 5, magnetic steel, 6, a limit switch, 7, an audible and visual alarm, 8 and a time delay.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will now be described in further detail with reference to fig. 1 and examples so that the public can better master the method of implementing the present invention, and the specific embodiments of the present invention are:
coal face limit for height protection device for colliery conveyer belt, including standing in hollow stand 3, limit for height regulating part, response magnetic switch, delay timer 8, audible-visual annunciator 7 in conveyer belt both sides, response magnetic switch includes magnet steel 5 and limit switch 6, magnet steel 5 sets up in limit for height regulating part, magnet steel 5 and limit switch 6 mutually support, realize the on-off control to the circuit, limit switch 6 is connected with delay timer 8 electricity, delay timer 8 is connected with audible-visual annunciator 7 electricity.
Limit for height adjustment portion is including setting up horizontal pole 1 in the transmission band top, the one end of horizontal pole 1 links to each other with pole setting 2, the other end of pole setting 2 passes stand 3 and is connected with fixed plate 4, pole setting 2 is connected with rotation mode with stand (3), magnet steel 5 sets up on fixed plate 4.
The outer surface of the vertical rod 2 is sleeved with a torsion spring, one end of the torsion spring is fixed on the vertical rod, and the other end of the torsion spring is fixed on the upright post 3.
The limit switch 6 adopts the following model: KBXC1/127-1 mining explosion-proof travel switch.
The audible and visual alarm 7 adopts the following models: KXH127 combined annunciators.
The utility model discloses a theory of operation and working process as follows:
as shown in figure 1 and figure 2, coal face limit for height protection device for colliery conveyer belt, install on colliery underground conveyor, the device is including standing in hollow stand 3 in conveyer belt both sides, limit for height regulating part, response magnetic switch, time delay 8, audible-visual annunciator 7. The stand is fixed in conveyer belt both sides, response magnetic switch includes magnet steel 5 and limit switch 6, magnet steel 5 mutually supports with limit switch 6, the realization is to the on-off control of circuit, limit for height regulating part is including setting up horizontal pole 1 in the transmission band top, the horizontal pole is as the limit for height of coal face, make the bold coal on the conveyer belt, waste rock or debris can touch horizontal pole 1, the one end of horizontal pole 1 links to each other with pole setting 2, the other end of pole setting 2 passes stand 3 and is connected with fixed plate 4, magnet steel 5 sets up on fixed plate 4, pole setting 2 is connected with the rotation mode with stand 3, 2 outer surface covers in pole setting are equipped with torsion spring, torsion spring's one end is fixed in the pole setting, the other end. Considering that there is a small amount of false high float coal in the course of movement, so that it can set a torsion spring with large elastic coefficient, and only if the obstacle is large enough and the impact is strong enough, it can trigger the mechanical device to make it act so as to prevent false action. The limit switch 6 is electrically connected with the delayer 8, and the delayer 8 is electrically connected with the audible and visual alarm 7.
When no object on the conveying belt touches the cross rod 1 and the cross rod 1 is not twisted, the limit switch 6 is in a normally open state; when large coal, gangue or sundries pass through the conveying belt, the conveying belt touches the cross rod 1, the cross rod 1 drives the vertical rod 2, the fixed plate 4 and the magnetic steel 5 to rotate around the central axis of the vertical column, the limit switch 6 is enabled to act through the magnetic induction principle and an internal switch to achieve the purpose of connection, an electric signal is conveyed to the time delayer 8, the time delayer 8 starts to time after receiving the electric signal, an opening signal is output to the audible and visual alarm 7 after the time is finished, and the audible and visual alarm 7 starts audible and visual alarm to prompt a driver to process.
Claims (5)
1. The utility model provides a coal face limit for height protection device for colliery conveyer belt which characterized in that: including standing in hollow stand (3), limit for height regulating part, response magnetic switch, delay timer (8), audible-visual annunciator (7) in conveyer belt both sides, response magnetic switch includes magnet steel (5) and limit switch (6), magnet steel (5) set up in limit for height regulating part, magnet steel (5) and limit switch (6) are mutually supported, realize the on-off control to the circuit, limit switch (6) are connected with delay timer (8) electricity, delay timer (8) are connected with audible-visual annunciator (7) electricity.
2. The coal face height limit protection device for the coal mine conveying belt according to claim 1, characterized in that: limit for height adjustment portion is including setting up horizontal pole (1) in the transmission band top, the one end of horizontal pole (1) links to each other with pole setting (2), the other end of pole setting (2) passes stand (3) and is connected with fixed plate (4), pole setting (2) are connected with rotation mode with stand (3), magnet steel (5) set up on fixed plate (4).
3. The coal face height limit protection device for the coal mine conveying belt according to claim 2, characterized in that: the outer surface of the vertical rod (2) is sleeved with a torsion spring, one end of the torsion spring is fixed on the vertical rod, and the other end of the torsion spring is fixed on the upright post (3).
4. The coal face height limit protection device for the coal mine conveying belt according to claim 1, characterized in that: the limit switch (6) adopts the following types: KBXC1/127-1 mining explosion-proof travel switch.
5. The coal face height limit protection device for the coal mine conveying belt according to claim 1, characterized in that: the audible and visual alarm (7) adopts the following types: KXH127 combined annunciators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423924.XU CN212923169U (en) | 2020-07-20 | 2020-07-20 | Coal face height limit protection device for coal mine conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423924.XU CN212923169U (en) | 2020-07-20 | 2020-07-20 | Coal face height limit protection device for coal mine conveying belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212923169U true CN212923169U (en) | 2021-04-09 |
Family
ID=75330719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021423924.XU Expired - Fee Related CN212923169U (en) | 2020-07-20 | 2020-07-20 | Coal face height limit protection device for coal mine conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212923169U (en) |
-
2020
- 2020-07-20 CN CN202021423924.XU patent/CN212923169U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |