CN111003015A - Tunnel upslope single file track mine car interception equipment - Google Patents
Tunnel upslope single file track mine car interception equipment Download PDFInfo
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- CN111003015A CN111003015A CN202010058738.9A CN202010058738A CN111003015A CN 111003015 A CN111003015 A CN 111003015A CN 202010058738 A CN202010058738 A CN 202010058738A CN 111003015 A CN111003015 A CN 111003015A
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- fixedly arranged
- block
- rail
- close
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/16—Positive railway stops
- B61K7/18—Buffer stops
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a tunnel uphill single-track tramcar intercepting device, which comprises a sleeper fixedly arranged on the upper end surface of the ground, rails are symmetrically and fixedly arranged in the front and back of the upper end surface of the sleeper, tramcars are arranged on the rails in a sliding manner and driven by cables, contact boxes are symmetrically and fixedly arranged on the left and right of the ground, a transmission box positioned below the rails is fixedly arranged in the ground, a transmission cavity is fixedly arranged in the transmission box, a transmission device is arranged in the transmission cavity, and an intercepting device is arranged on the upper end surface of the transmission box. Meanwhile, the occupied space is smaller, the requirement of modern safety production is met better, and the safety of mine personnel and equipment is guaranteed.
Description
Technical Field
The invention relates to the technical field of mine tunnel safety, in particular to a single-track mine car intercepting device for an uphill tunnel.
Background
The mine is used as a main channel of the mine and is provided with rails and a mine car, so that the rails and the mine car are convenient to transport minerals, and the sliding rails of the mine car belong to high accidents in mine safety accidents.
Disclosure of Invention
The invention aims to provide a single-track mine car intercepting device for an uphill tunnel, which is used for overcoming the defects in the prior art.
The equipment for intercepting the single-track mine car on the uphill side of the tunnel comprises a sleeper fixedly arranged on the upper side end surface of the ground, rails are symmetrically and fixedly arranged on the front and back of the upper side end surface of the sleeper, the mine car is arranged on the rails in a sliding mode and driven by cables, contact boxes are symmetrically and fixedly arranged on the left and right sides of the ground, contact chambers are fixedly arranged in the contact boxes, pressing blocks extending upwards and penetrating through the rails are arranged on the upper top wall of each contact chamber in a sliding mode, the upper side end surface of each pressing block is slightly higher than the upper side end surface of each rail, the left side end surface and the right side end surface of each pressing block are matched with the rails in a sliding mode, upper contacts are fixedly arranged on the lower side end surfaces of the pressing blocks, lower contacts are fixedly arranged on the lower bottom walls of the contact chambers;
a transmission case positioned below the rail is fixedly arranged in the ground, a transmission chamber is fixedly arranged in the transmission case, a transmission device is arranged in the transmission chamber, an interception device is arranged on the upper side end face of the transmission case, a controller is fixedly arranged on the lower bottom wall of the transmission chamber, the lower contact is electrically connected with the controller, the transmission device comprises a motor fixedly arranged on the lower bottom wall of the transmission chamber, the motor is electrically connected with the controller, a power shaft extending backwards is rotatably arranged on the rear side end face of the motor, a first gear is fixedly arranged at the rear end of the power shaft, a first shaft positioned above the motor is rotatably arranged between the front and rear inner walls of the transmission chamber, a second gear meshed with the first gear is fixedly arranged on the first shaft, a third gear is symmetrically arranged on the front and rear sides of the first shaft, and shaft rotating plates extending upwards are fixedly arranged on the front and rear sides of the upper side end face of the transmission case, a second shaft is rotatably arranged on one side, close to the rail, of the rotating shaft plate, and fourth gears meshed with the third gears are symmetrically and fixedly arranged at the front and back of the second shaft close to the tail end of the rail;
on the basis of the technical scheme, the intercepting device comprises a first block which is symmetrically and fixedly arranged on one side of the fourth gear close to the rail in a front-back manner, the end surface of the first block close to the rail is provided with a first cavity, a clamping shaft is fixedly arranged between the inner walls of the left side and the right side of the first cavity, a second block is symmetrically arranged on one side of the first block close to the rail in a sliding manner in the front and back direction, a second cavity is arranged inside the second block, a first sliding groove is fixedly arranged between the upper top wall and the lower bottom wall of the second cavity, a striking block is arranged in the first sliding groove in a sliding manner, the impact block can slide left and right in the first sliding groove, a second spring is fixedly arranged between the right end face of the impact block and the right inner wall of the second cavity, a first rod is symmetrically and fixedly arranged at the front and back of one side of the second spring, which is close to the first block, and a clamping jaw extending leftwards is fixedly arranged at the tail end of the first rod, which is close to the first block;
on the basis of the technical scheme, the lower bottom wall of the second cavity is symmetrically and fixedly provided with second sliding chutes in the front and the back, an annular block is symmetrically arranged on the front and back of the end surface of the upper side of the second sliding chute in a sliding manner, a third spring is fixedly arranged between the end surface of the annular block close to the first block and the inner wall of the second cavity close to the first block, a second rod extending forwards and backwards is fixedly arranged in the annular block, a clamping groove matched with the clamping jaw is fixedly arranged on the end face of the right side of one end, close to the impact block, of the second rod, a fork-shaped block is symmetrically and fixedly arranged at the front and back of one end of the second rod close to the first block, the fork-shaped block is in sliding fit with the first cavity and the clamping shaft, a through hole is fixedly arranged on the inner wall of one side of the second cavity close to the first block, a third sliding groove is fixedly arranged on the inner wall of the second cavity above the annular block, a handle which extends upwards and is connected with the third sliding groove in a sliding fit manner is fixedly arranged on the upper side end face of the annular block;
on the basis of the technical scheme, a third rod and a fourth rod which are positioned on the lower side of the third rod are fixedly arranged on one side, close to the rail, of the second block, a third block is fixedly arranged between the third rod and one side, far away from the second block, of the fourth rod, a first rail block is fixedly arranged on the third rod, a second rail block is fixedly arranged on the fourth rod, and a first opening matched with the first rail block and a second opening matched with the second rail block are symmetrically arranged in the front and back of the rail;
on the basis of the technical scheme, the front and back of the side end face on the ground are symmetrically and fixedly provided with the stand columns located on the left side of the transmission case, the tail ends of the upper sides of the stand columns rotate to be provided with rotating wheel shafts, torsion springs are arranged in the rotating wheel shafts, winding wheels are fixedly arranged on the rotating wheel shafts, elastic ropes are wound on the winding wheels, and the tail ends of the right sides of the elastic ropes are fixed on the left side end face of the second block.
The invention has the beneficial effects that: the mine car stopping device is installed on a slope of a mine road, is used for stopping a mine car when a mine car slides along the rail, and prevents secondary accidents.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall construction of a single file track car intercepting apparatus for tunnel uphill according to the present invention;
FIG. 2 is a schematic view of the structure at A-A in FIG. 1;
FIG. 3 is a schematic view of the structure at B-B in FIG. 2;
FIG. 4 is a schematic view of the structure at C-C in FIG. 2;
fig. 5 is a schematic diagram of the structure at D in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1 to 5, a single file rail car intercepting apparatus for tunnel uphill according to an embodiment of the present invention, includes a sleeper 11 fixedly installed on an upper side end surface of a ground 10, rails 12 are symmetrically fixed on the front and back of the upper side end face of the sleeper 11, mine cars 99 are arranged on the rails 12 in a sliding manner, the mine car 99 is driven by the cable 41, the contact boxes 13 are symmetrically fixed on the ground 10, a contact chamber 16 is fixedly arranged in the contact box 13, a pressing block 17 extending upwards and penetrating through the rail 12 is slidably arranged on the top wall of the contact chamber 16, the upper end surface of the pressing block 17 is slightly higher than the upper end surface of the rail 12, the left and right end surfaces of the pressing block 17 are in sliding fit with the rail 12, an upper contact 18 is fixedly arranged on the lower side end surface of the pressing block 17, a lower contact 14 is fixedly arranged on the lower bottom wall of the contact cavity 16, a first spring 15 is fixedly arranged between the lower side end surface of the pressing block 17 and the lower bottom wall of the contact cavity 16;
a transmission box 19 positioned below the rail 12 is fixedly arranged in the ground 10, a transmission cavity 26 is fixedly arranged in the transmission box 19, a transmission device is arranged in the transmission cavity 26, an intercepting device is arranged on the upper side end face of the transmission box 19, a controller 20 is fixedly arranged on the lower bottom wall of the transmission cavity 26, the lower contact 14 is electrically connected with the controller 20, the transmission device comprises a motor 24 fixedly arranged on the lower bottom wall of the transmission cavity 26, the motor 24 is electrically connected with the controller 20, a power shaft 23 extending backwards is rotatably arranged on the rear side end face of the motor 24, a first gear 22 is fixedly arranged at the rear end of the power shaft 23, a first shaft 25 positioned above the motor 24 is rotatably arranged between the inner walls of the front side and the rear side of the transmission cavity 26, a second gear 21 meshed with the first gear 22 is fixedly arranged on the first shaft 25, and third gears 27 are symmetrically arranged on the front side and the rear side of the first shaft 25, the front and back symmetrical positions of the upper side end surface of the transmission box 19 are fixedly provided with upwards extending rotating shaft plates 66, one side of each rotating shaft plate 66, which is close to the rail 12, is rotatably provided with a second shaft 67, and the front and back symmetrical positions of the tail end, which is close to the rail 12, of the second shaft 67 are fixedly provided with fourth gears 28 meshed with the third gears 27;
in addition, in one embodiment, the intercepting device comprises a first block 29 which is symmetrically and fixedly arranged at the front and back of one side of the fourth gear 28 close to the rail 12, a first cavity 61 is arranged at the end surface of the first block 29 close to the rail 12, a clamping shaft 62 is fixedly arranged between the left inner wall and the right inner wall of the first cavity 61, a second block 32 is symmetrically and slidably arranged at the front and back of one side of the first block 29 close to the rail 12, a second cavity 33 is arranged inside the second block 32, a first sliding groove 34 is fixedly arranged between the upper top wall and the lower bottom wall of the second cavity 33, a striking block 31 is slidably arranged in the first sliding groove 34, the striking block 31 can slide left and right in the first sliding groove 34, a second spring 48 is fixedly arranged between the right end surface of the striking block 31 and the right inner wall of the second cavity 33, a first rod 49 is symmetrically and fixedly arranged at the front and back of one side of the second spring 48 close to the first block 29, a claw 50 extending leftwards is fixedly arranged at the tail end of the first rod 49 close to the first block 29;
in addition, in one embodiment, a second sliding groove 63 is symmetrically and fixedly arranged in front and back of the lower bottom wall of the second cavity 33, an annular block 51 is symmetrically and slidably arranged in front and back of the upper end surface of the second sliding groove 63, a third spring 52 is fixedly arranged between the end surface of the annular block 51 close to the first block 29 and the inner wall of the second cavity 33 close to the first block 29, a second rod 54 extending in front and back is fixedly arranged in the annular block 51, a clamping groove 55 matched with the clamping jaw 50 is fixedly arranged on the right end surface of the second rod 54 close to one end of the impact block 31, a fork-shaped block 53 is symmetrically and fixedly arranged in front and back of one end of the second rod 54 close to the first block 29, the fork-shaped block 53 is in sliding fit with the first cavity 61 and the clamping shaft 62, a through hole 65 is fixedly arranged on the inner wall of one side of the second cavity 33 close to the first block 29, a third sliding groove 64 is fixedly arranged on the inner wall of the second cavity 33 above the annular block 51, the upper side end face of the annular block 51 is fixedly provided with a handle 30 which extends upwards and is connected with the third sliding groove 64 in a sliding fit manner;
in addition, in one embodiment, a third rod 35 and a fourth rod 38 located on the lower side of the third rod 35 are fixedly arranged on one side, close to the rail 12, of the second block 32, a third block 39 is fixedly arranged between the sides, far away from the second block 32, of the third rod 35 and the fourth rod 38, a first rail block 36 is fixedly arranged on the third rod 35, a second rail block 37 is fixedly arranged on the fourth rod 38, and a first notch 47 matched with the first rail block 36 and a second notch 46 matched with the second rail block 37 are symmetrically arranged on the rail 12 in a front-back mode;
in addition, in one embodiment, upright posts 44 positioned on the left side of the transmission case 19 are symmetrically and fixedly arranged on the front and back of the upper side end surface of the ground 10, a rotating wheel shaft 43 is rotatably arranged at the upper end of each upright post 44, a torsion spring is arranged in each rotating wheel shaft 43, a reel 42 is fixedly arranged on each rotating wheel shaft 43, an elastic rope 45 is wound on each reel 42, and the right end of each elastic rope 45 is fixed on the left side end surface of the second block 32.
In the initial state, the second cavity 33 and the third block 39 are kept in the lifting state, the second spring 48 is relaxed, the claw 50 is positioned in the clamping groove 55, the fork-shaped block 53 is positioned in the first cavity 61, the third spring 52 is in the compression state, the first spring 15 is relaxed, and the torsion spring in the rotating wheel shaft 43 is relaxed.
When the mine car 99 passes, the mine car 99 presses the pressing block 17 positioned on the right side, the first spring 15 is compressed, the upper contact 18 is contacted with the lower contact 14, the controller 20 controls the motor 24 to be started, the power shaft 23 rotates and drives the first gear 22 and the second gear 21 to rotate, the second gear 21 drives the first shaft 25 and the third gear 27 to rotate, the third gear 27 drives the fourth gear 28 to rotate, the fourth gear 28 rotates the first block 29, the second block 32, the third rod 35, the first rail block 36, the second rail block 37, the fourth rod 38 and the third block 39, the tramcar 99 passes, and then the tramcar 99 presses the pressing block 17 located at the left side, the motor 24 is reversed, and the device is lifted again.
When an accident occurs, the mine car 99 slides rapidly, at the moment when the mine car 99 touches the left end face of the impact block 31, the impact block 31 slides, the second spring 48 compresses, the first rod 49 and the claw 50 move backwards, the claw 50 is separated from the clamping groove 55, the third spring 52 drives the annular block 51 and the second rod 54 to move towards the impact block 31, the fork-shaped block 53 is separated from the first cavity 61 and the clamping shaft 62 and is recovered into the second cavity 33, the second block 32 is separated from the first block 29 under the pushing of the mine car 99, the elastic rope 45 is pulled, the reel 42 and the rotating wheel shaft 43 rotate, and the torsion spring is screwed to stop the motion of the mine car 99.
After the accident is processed, the second block 32 is in sliding fit with the first block 29, the handle 30 is slid to drive the annular block 51, the second rod 54 and the fork-shaped block 53 to move towards the direction close to the clamping shaft 62, the clamping jaw 50 is matched with the clamping groove 55 again, the device is reset, and the next interception can be carried out smoothly.
The invention has the beneficial effects that: the mine car stopping device is installed on a slope of a mine road, is used for stopping a mine car when a mine car slides along the rail, and prevents secondary accidents.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a tunnel upslope single file track mine car interception equipment, includes the fixed sleeper of locating the upside terminal surface in ground, its characterized in that: rails are symmetrically and fixedly arranged on the front and back of the end face of the upper side of the sleeper, mine cars are arranged on the rails in a sliding manner, the mine cars are driven by the mooring ropes, contact boxes are symmetrically and fixedly arranged on the ground in the left and right direction, contact cavities are fixedly arranged in the contact boxes, pressing blocks which extend upwards and penetrate through the rails are arranged on the upper top walls of the contact cavities in a sliding manner, the end faces of the upper sides of the pressing blocks are slightly higher than the end faces of the upper sides of the rails, the end faces of the left and right sides of the pressing blocks are in sliding fit with the rails, upper contacts are fixedly arranged on the end faces of the lower sides of the pressing blocks, lower contacts are fixedly arranged on the lower bottom walls of the contact;
a transmission case positioned below the rail is fixedly arranged in the ground, a transmission chamber is fixedly arranged in the transmission case, a transmission device is arranged in the transmission chamber, an interception device is arranged on the upper side end face of the transmission case, a controller is fixedly arranged on the lower bottom wall of the transmission chamber, the lower contact is electrically connected with the controller, the transmission device comprises a motor fixedly arranged on the lower bottom wall of the transmission chamber, the motor is electrically connected with the controller, a power shaft extending backwards is rotatably arranged on the rear side end face of the motor, a first gear is fixedly arranged at the rear end of the power shaft, a first shaft positioned above the motor is rotatably arranged between the front and rear inner walls of the transmission chamber, a second gear meshed with the first gear is fixedly arranged on the first shaft, a third gear is symmetrically arranged on the front and rear sides of the first shaft, and shaft rotating plates extending upwards are fixedly arranged on the front and rear sides of the upper side end face of the transmission case, and a second shaft is rotatably arranged on one side of the rotating shaft plate, which is close to the rail, and four gears meshed with the third gear are symmetrically and fixedly arranged on the front and back of the second shaft, which is close to the tail end of the rail.
2. The single file track mine car intercepting apparatus in uphill tunnels of claim 1, wherein: the intercepting device comprises a front gear and a rear gear which are symmetrically and fixedly arranged, wherein the front gear is close to a first block on one side of a rail, the first block is close to the end face of the rail, a first cavity is formed in the end face of the rail, a clamping shaft is fixedly arranged between the inner walls of the left side and the right side of the first cavity, the first block is close to a second block which is symmetrically and slidably arranged on one side of the rail, a second cavity is formed in the inner part of the second block, a first sliding groove is fixedly formed between the upper top wall and the lower bottom wall of the second cavity, an impact block is slidably arranged in the first sliding groove and can slide left and right in the first sliding groove, a second spring is fixedly arranged between the right end face of the impact block and the right inner wall of the second cavity, a first rod is close to the front side and rear symmetrical of one side of the first block, and a clamping jaw extending leftwards is fixedly arranged at the.
3. The single file track mine car intercepting apparatus in uphill tunnels of claim 1, wherein: a second sliding groove is symmetrically and fixedly arranged on the lower bottom wall of the second cavity in the front-back direction, an annular block is symmetrically and slidably arranged on the upper side end surface of the second sliding groove in the front-back direction, a third spring is fixedly arranged between the end surface of the annular block close to the first block and the inner wall of the second cavity close to the first block, a second rod extending forwards and backwards is fixedly arranged in the annular block, a clamping groove matched with the clamping jaw is fixedly arranged on the end face of the right side of one end, close to the impact block, of the second rod, a fork-shaped block is symmetrically and fixedly arranged at the front and back of one end of the second rod close to the first block, the fork-shaped block is in sliding fit with the first cavity and the clamping shaft, a through hole is fixedly arranged on the inner wall of one side of the second cavity close to the first block, a third sliding groove is fixedly arranged on the inner wall of the second cavity above the annular block, and a handle which extends upwards and is connected with the third sliding groove in a sliding fit manner is fixedly arranged on the upper side end face of the annular block.
4. The single file track mine car intercepting apparatus in uphill tunnels of claim 1, wherein: no. two the piece is close to fixed No. three poles and the being located of being equipped with in one side of rail No. four poles of No. three pole downside, No. three the pole and No. four the pole is kept away from fixed No. three pieces of being equipped with between one side of No. two pieces, fixed No. one rail piece that is equipped with on No. three poles, fixed No. two rail pieces that are equipped with on No. four poles, on the rail around the symmetry be equipped with No. one rail piece complex opening and with No. two rail piece complex openings.
5. The single file track mine car intercepting apparatus in uphill tunnels of claim 1, wherein: the fixed stand that is located the transmission case left side that is equipped with of symmetry around the ground upside terminal surface, the terminal rotation of stand upside is equipped with the runner spindle, be equipped with the torsional spring in the runner spindle, the epaxial reel that is fixed to be equipped with of runner spindle, around being equipped with the elasticity rope on the reel, the elasticity rope right side end is fixed in on the terminal surface of No. two pieces left sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058738.9A CN111003015B (en) | 2020-01-19 | 2020-01-19 | Tunnel upslope single file track mine car interception equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058738.9A CN111003015B (en) | 2020-01-19 | 2020-01-19 | Tunnel upslope single file track mine car interception equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111003015A true CN111003015A (en) | 2020-04-14 |
| CN111003015B CN111003015B (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010058738.9A Active CN111003015B (en) | 2020-01-19 | 2020-01-19 | Tunnel upslope single file track mine car interception equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN111003015B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261422A (en) * | 2022-03-02 | 2022-04-01 | 山东省煤炭技术服务有限公司 | Conveying device for continuously conveying underground coal |
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| EP0234029A1 (en) * | 1986-02-27 | 1987-09-02 | Hermann Schmidt Maschinenfabrik | Braking device for rolling pallets |
| CN101704374A (en) * | 2009-11-18 | 2010-05-12 | 靳慧民 | Bottom lifting type U-shaped tram guard |
| CN202243537U (en) * | 2011-12-20 | 2012-05-30 | 山东世纪矿山机电有限公司 | Ground-rise sports car protection arrester |
| CN206374758U (en) * | 2017-01-16 | 2017-08-04 | 华北理工大学 | Electric-controlled pneumatic type inclined drift tramcar escape-preventing device |
| CN207106520U (en) * | 2017-07-29 | 2018-03-16 | 山西汾西矿业（集团）有限责任公司 | New type mining buffer stop |
| CN209051437U (en) * | 2018-10-10 | 2019-07-02 | 山西汾西矿业（集团）有限责任公司 | A kind of underground normally closed type automatic nondestructive detection car retarder |
| CN110439605A (en) * | 2019-08-07 | 2019-11-12 | 四川省煤炭设计研究院 | A kind of coal mine air door anticollision linkage car stopping device |
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2020
- 2020-01-19 CN CN202010058738.9A patent/CN111003015B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0234029A1 (en) * | 1986-02-27 | 1987-09-02 | Hermann Schmidt Maschinenfabrik | Braking device for rolling pallets |
| CN101704374A (en) * | 2009-11-18 | 2010-05-12 | 靳慧民 | Bottom lifting type U-shaped tram guard |
| CN202243537U (en) * | 2011-12-20 | 2012-05-30 | 山东世纪矿山机电有限公司 | Ground-rise sports car protection arrester |
| CN206374758U (en) * | 2017-01-16 | 2017-08-04 | 华北理工大学 | Electric-controlled pneumatic type inclined drift tramcar escape-preventing device |
| CN207106520U (en) * | 2017-07-29 | 2018-03-16 | 山西汾西矿业（集团）有限责任公司 | New type mining buffer stop |
| CN209051437U (en) * | 2018-10-10 | 2019-07-02 | 山西汾西矿业（集团）有限责任公司 | A kind of underground normally closed type automatic nondestructive detection car retarder |
| CN110439605A (en) * | 2019-08-07 | 2019-11-12 | 四川省煤炭设计研究院 | A kind of coal mine air door anticollision linkage car stopping device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261422A (en) * | 2022-03-02 | 2022-04-01 | 山东省煤炭技术服务有限公司 | Conveying device for continuously conveying underground coal |
| CN114261422B (en) * | 2022-03-02 | 2022-04-29 | 山东省煤炭技术服务有限公司 | Conveying device for continuously conveying underground coal |
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| CN111003015B (en) | 2021-05-07 |
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