CN213621956U - Large-chain broken chain monitoring device of coal face scraper conveyor - Google Patents
Large-chain broken chain monitoring device of coal face scraper conveyor Download PDFInfo
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- CN213621956U CN213621956U CN202021849866.7U CN202021849866U CN213621956U CN 213621956 U CN213621956 U CN 213621956U CN 202021849866 U CN202021849866 U CN 202021849866U CN 213621956 U CN213621956 U CN 213621956U
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Abstract
The utility model belongs to the technical field of the colliery is combined and is adopted working face construction, concretely relates to coal face scraper conveyor big chain broken chain monitoring devices, it has solved the extravagant manpower of artifical detection broken chain, problem that the accuracy is low. The utility model comprises a monitoring mechanism, a fixing device, a proximity quick-closing device and a rotating shaft; the monitoring mechanism comprises a monitoring block, a connecting device, a long leg and a short leg, the monitoring block is of a square block structure, a vertical rod of the connecting device is fixed at the bottom of the monitoring block, the long leg and the short leg are respectively and fixedly connected to two ends of a cross rod, and the height difference of the long leg and the short leg is consistent with that of a vertical ring and a flat ring of the large chain; the monitoring mechanism moves up and down along the direction hole relative to the fixing device; the fixing device is provided with a proximity quick switch; the rotating shaft is inserted in the hinge hole of the fixing device and arranged along the left and right directions. The utility model discloses improved the accuracy that scraper conveyor broken chain judged greatly, used manpower sparingly, shortened accident influence time, improved the normal rate of opening of combining and adopting working face equipment.
Description
Technical Field
The utility model belongs to the technical field of the colliery is combined and is adopted working face construction, concretely relates to coal face scraper conveyor chain rupture monitoring devices of big chain.
Background
The scraper conveyor on the fully mechanized mining face of the coal mine is widely applied, but in the use process of the scraper conveyor, chain breakage is often caused due to the reasons of large transportation load, chain biting of a machine head and a machine tail and the like, and the fully mechanized mining efficiency is seriously influenced by the occurrence of accidents. At present, aiming at the situation, the main measures are taken to arrange experienced old workers to observe at the tail of the scraper conveyor, find out the site of chain breakage in time and avoid the expansion of accidents. However, this method is labor-intensive, and sometimes the worker is not focused, and uncertain factors of the person cannot be eliminated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to solve the aforesaid, provides a coal face scraper conveyor chain rupture monitoring devices that hangs down.
The utility model discloses a following technical scheme realizes: a large-chain broken chain monitoring device of a coal face scraper conveyor comprises a monitoring mechanism, a fixing device, a proximity switch and a rotating shaft;
the monitoring mechanism comprises a monitoring block, a connecting device, a long leg and a short leg which are arranged in parallel, the connecting device is of a T-shaped integrated structure, the connecting device comprises a vertical rod and a transverse rod which is arranged on the left and right sides, the monitoring block is of a square block structure, the vertical rod is fixed at the bottom of the monitoring block, the length and the width of the monitoring block are greater than those of the vertical rod, the long leg and the short leg are respectively and fixedly connected to two ends of the transverse rod, and the height difference between the long leg and the short leg is consistent with that between a vertical ring and a flat ring of a large chain;
the monitoring device comprises a fixing device and a monitoring mechanism, wherein a vertical directional hole is formed in the fixing device, an insertion hole for inserting the monitoring mechanism is formed in the bottom of the fixing device, a vertical rod of a connecting device of the monitoring mechanism is inserted into the insertion hole, a monitoring block is located in the directional hole, and the monitoring mechanism moves up and down along the directional hole relative to the fixing device; the fixing device is provided with a proximity switch, the proximity switch is lower than the monitoring block, and the proximity switch is communicated with the scraper conveyor operating platform through a circuit; the fixing device is provided with a hinge hole, the rotating shaft is inserted in the hinge hole, the two ends of the rotating shaft extend out of the fixing device, and the rotating shaft is arranged along the left and right directions.
Furthermore, the bottom ends of the long leg and the short leg of the monitoring mechanism are both conical.
Furthermore, the rotating shaft is fixed at the tail shield of the scraper conveyor, the monitoring mechanism straddles on the large chain, the long legs are positioned on the flat ring of the large chain, and the short legs are positioned on the vertical ring of the large chain.
Further, the short leg of the monitoring mechanism is positioned at the midpoint of the top of the vertical ring, and the distance between the long leg and the short leg is larger than the width of the vertical ring.
The proximity switch is 10cm below the monitoring block.
The utility model discloses compare prior art's beneficial effect:
the device replaces manual detection of chain breakage of the scraper conveyor, greatly improves the accuracy of chain breakage judgment of the scraper conveyor, saves manpower, avoids uncertainty of manual detection, avoids chain breakage accident expansion, shortens accident influence time, and improves normal opening rate of fully mechanized mining face equipment.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the present invention;
FIG. 3 is a schematic view of the present invention swinging in the direction of operation of the scraper conveyor;
in the figure: 1-scraper conveyor large chain, 2-monitoring mechanism, 2.1-monitoring block, 2.2-long leg, 2.3-short leg, 2.4-connecting device, 3-fixing device, 3.1-direction hole, 3.2-plug-in hole, 4-proximity switch, 5-rotating shaft; 6-vertical ring, 7-flat ring, 8-scraper and B-vertical ring width.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The terms "front and rear" in this description refer to the length direction of the large chain (i.e., the direction in which the large chain travels), "left and right" refer to the width direction of the large chain, and "up and down" refer to the height direction of the large chain.
Referring to fig. 1, the utility model provides a technical scheme: a large-chain broken chain monitoring device of a coal face scraper conveyor comprises a monitoring mechanism 2, a fixing device 3, a proximity switch 4 and a rotating shaft 5;
the monitoring mechanism 2 comprises a monitoring block 2.1, a connecting device 2.4, a long leg 2.2 and a short leg 2.3 which are arranged in parallel, the connecting device 2.4 is of a T-shaped integrated structure, the connecting device comprises a vertical rod and a transverse rod arranged on the left and right, the monitoring block 2.1 is of a square block structure, the vertical rod is fixed at the bottom of the monitoring block 2.1, the length and the width of the monitoring block 2.1 are greater than those of the vertical rod, the long leg 2.2 and the short leg 2.3 are respectively and fixedly connected to two ends of the transverse rod, and the height difference between the long leg 2.2 and the short leg 2.3 is consistent with that between a vertical ring 6 and a flat ring 7 of a large chain;
a vertical direction hole 3.1 is formed in the fixing device 3, an insertion hole 3.2 for inserting the monitoring mechanism 2 is formed in the bottom of the fixing device 3, a vertical rod of a connecting device 2.4 of the monitoring mechanism 2 is inserted into the insertion hole 3.2, the monitoring block 2.1 is positioned in the direction hole 3.1, and the monitoring mechanism 2 moves up and down relative to the fixing device 3 along the direction hole 3.1; a proximity switch 4 is arranged on the fixing device 3, the proximity switch 4 is lower than the monitoring block 2.1, and the proximity switch 4 is communicated with a scraper conveyor operating platform through a circuit; be equipped with the hinge hole on fixing device 3, pivot 5 alternates in the hinge hole and both ends extend outside fixing device 3, and pivot 5 sets up along left right direction.
The bottom ends of the long leg 2.2 and the short leg 2.3 of the monitoring mechanism 2 are both conical, so that the friction force between the long leg 2.2 and the short leg 2.3 and a large chain is reduced, and the swing of the large chain driving the monitoring mechanism 2 is reduced as much as possible.
The rotating shaft 5 is fixed at the tail shield of the scraper conveyor, and the whole device can swing within a certain range in the running direction of the scraper conveyor (as shown in fig. 3), so that the monitoring mechanism 2 is transited between a large chain and a scraper when the scraper conveyor normally runs, and the device is prevented from being stumbled when a scraper or an iron device passes by (because a scraper 8 is arranged on the large chain 1 of the scraper conveyor at intervals, and a height difference exists between the scraper 8 and the large chain 1 of the scraper conveyor).
The monitoring mechanism 2 straddles the large chain with the long leg 2.2 on the flat ring 7 of the large chain and the short leg 2.3 on the vertical ring 6 of the large chain, as shown in figure 2.
The short leg 2.3 of the monitoring mechanism 2 is positioned at the midpoint of the top of the vertical ring, and the distance between the long leg 2.2 and the short leg 2.3 is larger than the width B of the vertical ring, so that the monitoring mechanism 2 stably rides on the large chain.
The proximity switch 4 is 10cm below the monitoring block.
When the scraper conveyor normally runs, the positions of the long legs 2.2 and the short legs 2.3 can be kept unchanged, when a large chain breakage accident occurs, the long legs 2.2 and the short legs 2.3 straddling on the large chain fall down (namely, the monitoring block 2.1 of the monitoring mechanism 2 falls down) because no large chain support exists, and the proximity switch 4 monitors that the monitoring block 2.1 falls down, so that a signal is sent to an operation table to warn workers that the large chain breakage accident occurs.
The operation panel records the accurate time of the lower scraper conveyor for breaking the single chain after receiving the chain breaking signal, and then converts the position of the broken chain after the machine is stopped, so that an operator can quickly find the position of the broken chain.
The device is erected on two large chains of the scraper conveyor respectively, chain breakage detection is carried out on the two large chains respectively, and accident enlargement is avoided.
In addition, the operation panel can also monitor the current change during the operation of the industrial truck to monitor the condition of double-chain simultaneous chain breakage, namely when the current change of the motor suddenly increases by more than 10%, the load of the conveyor is increased, and post personnel need to call the working surface in time to require the personnel to take measures such as shutdown.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a coal face scraper conveyor chain rupture monitoring devices of big chain which characterized in that: comprises a monitoring mechanism (2), a fixing device (3), a proximity switch (4) and a rotating shaft (5);
the monitoring mechanism (2) comprises a monitoring block (2.1), a connecting device (2.4), a long leg (2.2) and a short leg (2.3) which are arranged in parallel, the connecting device (2.4) is of a T-shaped integrated structure, the connecting device comprises a vertical rod and a transverse rod arranged on the left and right, the monitoring block (2.1) is of a square block structure, the vertical rod is fixed at the bottom of the monitoring block (2.1), the length and the width of the monitoring block (2.1) are greater than those of the vertical rod, the long leg (2.2) and the short leg (2.3) are respectively and fixedly connected to two ends of the transverse rod, and the height difference between the long leg (2.2) and the short leg (2.3) is consistent with that between a vertical ring (6) and a flat ring (7) of a large chain;
a vertical direction hole (3.1) is formed in the fixing device (3), an insertion hole (3.2) for inserting the monitoring mechanism (2) is formed in the bottom of the fixing device (3), a vertical rod of a connecting device (2.4) of the monitoring mechanism (2) is inserted into the insertion hole (3.2), the monitoring block (2.1) is located in the direction hole (3.1), and the monitoring mechanism (2) moves up and down relative to the fixing device (3) along the direction hole (3.1); a proximity switch (4) is arranged on the fixing device (3), the proximity switch (4) is lower than the monitoring block (2.1), and the proximity switch (4) is communicated with the operation platform of the scraper conveyor through a circuit; the fixing device (3) is provided with a hinge hole, the rotating shaft (5) is inserted in the hinge hole, two ends of the rotating shaft extend out of the fixing device (3), and the rotating shaft (5) is arranged along the left and right directions.
2. The large-chain breakage monitoring device for the scraper conveyor of the coal face according to claim 1, characterized in that: the bottom ends of the long leg (2.2) and the short leg (2.3) of the monitoring mechanism (2) are both conical.
3. The large-chain breakage monitoring device for the scraper conveyor of the coal face according to claim 1, characterized in that: the rotating shaft (5) is fixed at the tail shield of the scraper conveyor, the monitoring mechanism (2) straddles on the large chain, the long leg (2.2) is positioned on a flat ring (7) of the large chain, and the short leg (2.3) is positioned on a vertical ring (6) of the large chain.
4. A coal face scraper conveyor large chain breakage monitoring device according to any one of claims 1-3, characterized in that: the short leg (2.3) of the monitoring mechanism (2) is positioned at the midpoint of the top of the vertical ring, and the distance between the long leg (2.2) and the short leg (2.3) is larger than the width (B) of the vertical ring.
5. The large-chain breakage monitoring device for the scraper conveyor of the coal face according to claim 1, characterized in that: the proximity switch (4) is 10cm lower than the monitoring block (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849866.7U CN213621956U (en) | 2020-08-31 | 2020-08-31 | Large-chain broken chain monitoring device of coal face scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849866.7U CN213621956U (en) | 2020-08-31 | 2020-08-31 | Large-chain broken chain monitoring device of coal face scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213621956U true CN213621956U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021849866.7U Active CN213621956U (en) | 2020-08-31 | 2020-08-31 | Large-chain broken chain monitoring device of coal face scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213621956U (en) |
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2020
- 2020-08-31 CN CN202021849866.7U patent/CN213621956U/en active Active
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