CN112937626B - Storage battery electric locomotive with safety protection mechanism for coal mine auxiliary transportation - Google Patents
Storage battery electric locomotive with safety protection mechanism for coal mine auxiliary transportation Download PDFInfo
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- CN112937626B CN112937626B CN202110143334.4A CN202110143334A CN112937626B CN 112937626 B CN112937626 B CN 112937626B CN 202110143334 A CN202110143334 A CN 202110143334A CN 112937626 B CN112937626 B CN 112937626B
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- tail
- electric locomotive
- storage battery
- telescopic rod
- safety protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D9/00—Tipping wagons
- B61D9/04—Adaptations of rail vehicle elements to tipping wagons
- B61D9/12—Body fitments or devices facilitating or controlling outflow on discharge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the field of mining storage battery electric locomotives, in particular to a storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation. Can solve current colliery for auxiliary transportation battery electric locomotive drop on the track because of the colliery that it bore easily at the operation in-process, and because the colliery of transportation needs to be poured from loading the case after accomplishing the transportation on the electric locomotive, also drop on the track easily, the colliery that drops on the track brings the hindrance for the normal operating of electric locomotive easily, thereby there is certain potential safety hazard, and current processing mode to the colliery that drops on the track is artifical regular cleaning, and is comparatively troublesome, and waste time and energy.
Description
Technical Field
The invention relates to the field of mining storage battery electric locomotives, in particular to a storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation.
Background
The accumulator electric locomotive is a traction equipment for mine rail vehicle transportation, and the locomotive runs on the rail by means of the friction force between the wheels and the rail surface.
The current colliery is battery electric locomotive for auxiliary transportation still has certain defect when using, because the electric locomotive needs to move on specific track, drop on the track because of the colliery that bears on it easily in the operation process, and because the colliery of transportation needs to pour out from loading the case after accomplishing the transportation on the electric locomotive, also drop on the track easily, the colliery that drops on the track brings the hindrance for the normal operating of electric locomotive easily, thereby there is certain potential safety hazard, and current processing mode to the colliery that drops on the track is artifical regular clearance, it is comparatively troublesome, and waste time and energy.
Disclosure of Invention
The invention aims to provide a storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation, which can solve the problems that the existing storage battery electric locomotive for coal mine auxiliary transportation is easy to fall off on a rail due to coal mine carried on the storage battery electric locomotive in the operation process because the existing storage battery electric locomotive needs to operate on the specific rail, and the coal mine transported on the electric locomotive needs to be poured out of a loading box after transportation is finished, and also easily falls off on the rail, so that the coal mine falling on the rail easily brings obstruction to normal operation of the electric locomotive, and certain potential safety hazards exist.
The purpose of the invention can be realized by the following technical scheme:
a storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation comprises a safety protection structure, a base, a locomotive and a tail tractor, wherein two groups of track wheels are installed at the bottom of the base, the locomotive is fixed at the top of one end of the base, the tail tractor is fixedly connected to the other end of the base, a front baffle frame is fixed at the bottom right in front of the locomotive, the safety protection mechanism is arranged at the bottoms of the two ends of the front baffle frame, a lifting machine positioned on one side of the locomotive is fixed at the top of the base, an output end on the side wall of the lifting machine is movably connected with a turnover machine, a loading box is arranged at the top of the tail tractor, the side wall of the loading box is connected with a turnover rod of the turnover machine, a rotating shaft is connected to the bottom of one side of the loading box far away from the turnover machine in a penetrating manner, shaft seats fixed on the tail tractor are installed at the two ends of the rotating shaft, and two pressing plates are fixed at the bottom of one side of the loading box close to the turnover machine, the bottom parts of the two pressure plates are connected with a pressure rod connected into the tail tractor, one end of the pressure rod connected into the tail tractor is connected with a compressed air pipe, the pressure rod is connected into the compressed air pipe and is connected with a piston in the compressed air pipe, the side walls of the bottom parts of the two compressed air pipes are connected with a traction telescopic rod, and the two traction telescopic rods are respectively connected with a side protection plate;
all seted up one on all the other three side outer walls that the tail dragged to be close to the base and accomodate the groove, the inslot portion is all installed the side guard plate to two symmetrical accomodations, and another accomodates inslot portion and installs a tail end guard plate, the tail drags inside being fixed with a middle part telescopic link, the tail end guard plate is connected to the flexible end of middle part telescopic link, all be connected with a side telescopic link, every on the both sides outer wall of middle part telescopic link the flexible end of side telescopic link is connected with a side guard plate separately.
Preferably, the middle telescopic rod is communicated with the side telescopic rod, the compressed air pipe is communicated with the traction telescopic rod, and the pressing rod and the compressed air pipe are both of arc structures.
Preferably, safety protection structure includes rim plate, bottom gear, apical gear and flabellum, the rim plate hub connection keeps off the frame inside wall in the front, be provided with a band pulley on the outer wall of rim plate one side, the band pulley is connected with the rail wheel that is close to preceding fender frame through a hold-in range, be provided with a apical gear on the rim plate opposite side outer wall, the bottom meshing of apical gear has a bottom gear, the bottom hub connection flabellum of bottom gear.
Preferably, the fan blade and the rail wheel are located on the same horizontal straight line, and the bottom height of the fan blade is higher than the axle center height of the rail wheel.
Preferably, the loading box is rotatably connected with the tail boom through the turnover machine and the hoisting machine, and the loading box rotates around the rotating shaft when rotating.
Preferably, the working method of the storage battery electric locomotive with the safety protection mechanism for coal mine auxiliary transportation comprises the following specific steps:
the method comprises the following steps: the storage battery in the locomotive head is used for providing power for the motor at the bottom of the locomotive head, and the motor is used for driving the rail wheels to rotate so as to realize the operation of the storage battery electric locomotive on the rail, so that the track wheel drives the synchronous belt to rotate by the rotation of the track wheel in the process of running on the track, the synchronous belt drives the wheel disc to rotate in the rotating process, the wheel disc drives the top gear to rotate in the rotating process, the top gear drives the bottom gear to rotate in the rotating process, thereby utilizing the bottom gear to drive the fan blades to rotate, utilizing the fan blades to clean the track, and during the running process of the storage battery electric locomotive on the track, the loading box is flatly placed on the tail trailer, the pressure plate is utilized to extrude the pressure rod, the pressure rod presses the gas in the compressed gas pipe into the traction telescopic rod, the traction telescopic rod is extended, and the side protection plates are ejected out from the two sides of the tail boom under the driving of the traction telescopic rod and cover the track;
step two: when battery electric locomotive bring to rest need load or pour out the colliery from the loading case, utilize the lifting machine to promote the upset machine and cooperate the upset machine again and overturn the loading case, make the loading case rotate round the pivot and the upset is emptyd, the loading case is at the in-process of upset and no longer extrudees the compressed air pipe, make the compressed air pipe will pull the inside gas of telescopic link and take back again, thereby pull the telescopic link and shorten and withdraw the side guard plate again, two side guard plates are extruding the side telescopic link at the in-process of withdrawing, impress the inside gas of side telescopic link middle part telescopic link, make the middle part telescopic link extension, thereby it drags with this extension tail end guard plate ejecting.
The invention has the beneficial effects that: due to the existence of the safety protection structure, in the process that the rail wheel runs on the rail, the rotation of the rail wheel can be utilized to drive the synchronous belt to rotate, the synchronous belt drives the wheel disc to rotate in the rotating process, the wheel disc drives the top gear to rotate in the rotating process, the top gear drives the bottom gear to rotate in the rotating process, and therefore the bottom gear drives the fan blade to rotate;
the loading box is horizontally placed on the tail tractor in the operation process of the storage battery electric locomotive, so that the loading box can extrude the pressure rod by using the pressure plate at the bottom of the loading box, gas in the compressed gas pipe can be pressed into the traction telescopic rod by using the pressure rod, the traction telescopic rod is extended, and the side protection plates can be ejected out from the two sides of the tail tractor under the driving of the traction telescopic rod and cover the track by using the side protection plates due to the existence of the side protection plates, so that the storage battery electric locomotive cannot fall on the track even if a coal mine falls out of the loading box due to jolt in the operation process;
because the loading case is no longer extrudeing compressed air pipe at the in-process of upset, make compressed air pipe can take back the inside gas of traction telescopic link again, thereby traction telescopic link shortens and withdraws the side guard plate again, prevent that the side guard plate from hindering the butt joint between collection instrument and the tail that outside unloading was used drags, because be provided with middle part telescopic link and side telescopic link between two side guard plates, thereby two side guard plates can extrude the side telescopic link at the in-process of withdrawing, impress the inside gas of side telescopic link in the middle part telescopic link, make the middle part telescopic link extension, thereby it drags with this extension tail guard plate ejecting with this tail, avoid falling on the air space at the middle part of the track when the colliery is poured out from the loading case from the direction of empting, avoid appearing because of the problem of inconvenient pickup of the air space unevenness in the middle part of the track.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the structure of the loading compartment of the present invention;
figure 4 is a side view of the safety shield structure of the present invention;
FIG. 5 is a schematic structural view of the safety shield structure of the present invention;
FIG. 6 is a schematic view of the internal structure of the tail boom of the present invention;
FIG. 7 is a schematic view showing the inner structure of the compressed air tube of the present invention;
in the figure: 1. a base; 2. a front baffle frame; 3. a headstock; 4. a hoist; 5. a rail wheel; 6. dragging by a tail; 7. a loading bin; 8. a fan blade; 9. side protection plates; 10. a tail end protection plate; 11. a turnover machine; 12. pressing a plate; 13. a rotating shaft; 14. a shaft seat; 15. a synchronous belt; 16. a pulley; 17. a wheel disc; 18. a bottom gear; 19. a top gear; 20. a middle telescopic rod; 21. a side telescopic rod; 22. drawing the telescopic rod; 23. a pressure lever; 24. a piston; 25. the air pipe is compressed.
Detailed Description
The technical solutions of the present invention will be described below clearly and completely in conjunction with the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation comprises a safety protection structure, a base 1, a locomotive 3 and a tail towing 6, wherein two sets of track wheels 5 are installed at the bottom of the base 1, the locomotive 3 is fixed at the top of one end of the base 1, the tail towing 6 is fixedly connected with the other end of the base 1, a front baffle frame 2 is fixed at the bottom right in front of the locomotive 3, the safety protection mechanism is arranged at the bottoms of the two ends of the front baffle frame 2, a hoisting machine 4 positioned at one side of the locomotive 3 is fixed at the top of the base 1, an output end on the side wall of the hoisting machine 4 is movably connected with a turnover machine 11, a loading box 7 is arranged at the top of the tail towing 6, the side wall of the loading box 7 is connected with a turnover rod of the turnover machine 11, a rotating shaft 13 is connected at the bottom of one side of the loading box 7 far away from the turnover machine 11 in a penetrating manner, shaft seats 14 fixed on the tail towing 6 are installed at the two ends of the rotating shaft 13, the bottom of one side, close to the tilter 11, of the loading box 7 is fixedly provided with two pressing plates 12, the bottoms of the two pressing plates 12 are respectively connected with a pressing rod 23 connected into the tail towing 6, one end, connected into the tail towing 6, of the pressing rod 23 is connected with a compressed air pipe 25, the pressing rod 23 is connected into the compressed air pipe 25 and is connected with a piston 24 inside the compressed air pipe 25, the side walls of the bottoms of the two compressed air pipes 25 are respectively connected with a traction telescopic rod 22, and the two traction telescopic rods 22 are respectively connected with a side protection plate 9;
the tail drags 6 except that all having seted up one on all the other three side outer walls that are close to base 1 and accomodate the groove, symmetrical two are accomodate inslot portion and all install side guard plate 9, another accomodates inslot portion and has a tail end guard plate 10, the tail drags 6 inside being fixed with a middle part telescopic link 20, tail end guard plate 10 is connected to the flexible end of middle part telescopic link 20, all be connected with a side telescopic link 21 on the both sides outer wall of middle part telescopic link 20, the flexible end of every side telescopic link 21 is connected with a side guard plate 9 separately.
Middle part telescopic link 20 is linked together with side telescopic link 21 for the inside gas of middle part telescopic link 20 and side telescopic link 21 can circulate each other, and compressed air pipe 25 is linked together with traction telescopic link 22, makes compressed air pipe 25 and the inside gas of traction telescopic link 22 can circulate each other, and depression bar 23 and compressed air pipe 25 all are the arc structure.
Safety protection structure includes rim plate 17, end gear 18, top gear 19 and flabellum 8, and on 2 inside walls of frame were kept off in the front to 17 hub connections of rim plate, is provided with a band pulley 16 on the outer wall of 17 one side of rim plate, and band pulley 16 is connected with the rail wheel 5 that keeps off frame 2 before being close to through a hold-in range 15, is provided with a top gear 19 on the outer wall of 17 opposite side of rim plate, and the bottom meshing of top gear 19 has an end gear 18, and the bottom hub connection flabellum 8 of end gear 18.
The loading box 7 is rotatably connected with the tail tow 6 through the turnover machine 11 and the hoisting machine 4, and the loading box 7 rotates around the rotating shaft 13 when rotating, so that the loading box 7 has a normal dumping function under the action of the turnover machine 11 and the hoisting machine 4.
When the invention is used, the rail wheel 5 of the storage battery electric locomotive is positioned right above the rail, the storage battery in the locomotive 3 is used for providing power for the motor at the bottom of the locomotive 3, and the motor is used for driving the rail wheel 5 to rotate so as to realize the operation of the storage battery electric locomotive on the rail, due to the existence of the safety protection structure, the rail wheel 5 can drive the synchronous belt 15 to rotate by utilizing the rotation of the rail wheel 5 in the process of the operation on the rail, the synchronous belt 15 drives the wheel disc 17 to rotate in the process of the rotation, the wheel disc 17 drives the top gear 19 to rotate in the process of the rotation, the top gear 19 drives the bottom gear 18 to rotate in the process of the rotation, so that the bottom gear 18 drives the fan blade 8 to rotate, and because the fan blade 8 and the rail wheel 5 are positioned on the same horizontal straight line, the bottom height of the fan blade 8 is higher than the axle center height of the rail wheel 5, the fan blade 8 faces the rail and is not contacted with the rail, so that the blades 8 can be used for cleaning the rail in the process of running the storage battery electric locomotive on the rail, so that the storage battery electric locomotive can automatically clean the coal mine falling on the track in the advancing process, and because the loading box 7 is laid on the tail-towing vehicle 6 during the operation of the storage battery electric locomotive, so that the loading compartment 7 can press the pressing rod 23 with the pressing plate 12 at the bottom thereof, so that the air inside the compressed air pipe 25 can be pressed inside the telescopic traction rod 22 with the piston 24, so that the telescopic traction rod 22 is extended, and due to the presence of the side protection plates 9, so that the side protection plates 9 can be ejected out from the two sides of the tail boom 6 under the driving of the traction telescopic rod 22, the side protection plates 9 are utilized to cover the track, therefore, even if the coal mine falls out of the loading box 7 due to bumping in the running process of the storage battery electric locomotive, the storage battery electric locomotive cannot fall on the track; when the storage battery electric locomotive stops running and needs loading or a coal mine is poured out from the loading box 7, the lifting machine 4 is used for lifting the tilter 11 and matching with the tilting rod to turn the loading box 7, wherein the tilting rod is of a telescopic structure, so that the loading box 7 rotates around the rotating shaft 13 to turn over and tilt, the loading box 7 does not extrude the compressed air pipe 25 any more in the turning process, so that the compressed air pipe 25 can extract the air in the traction telescopic rod 22 again, the traction telescopic rod 22 is shortened, the side protection plate 9 is recovered again, the side protection plate 9 is prevented from obstructing the butt joint between a collecting tool for external blanking and the tail towing 6, the middle telescopic rod 20 and the side telescopic rod 21 are arranged between the two side protection plates 9, the two side protection plates 9 can extrude the side telescopic rods 21 in the recovery process, and the air in the side protection plates 21 is pressed into the middle telescopic rod 20, so that the middle telescopic rod 20 extends, the tail end protection plate 10 is ejected out to prolong the tail towing 6, the coal mine is prevented from falling on the empty ground in the middle of the rail when being discharged from the dumping direction when being dumped from the loading box 7, and inconvenient picking due to uneven empty ground in the middle of the rail is avoided.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A storage battery electric locomotive with a safety protection mechanism for coal mine auxiliary transportation comprises a safety protection structure, a base (1), a locomotive (3) and a tail tractor (6), and is characterized in that two groups of track wheels (5) are installed at the bottom of the base (1), the locomotive (3) is fixed at the top of one end of the base (1), the tail tractor (6) is fixedly connected to the other end of the base (1), a front baffle frame (2) is fixed at the bottom right in front of the locomotive (3), the safety protection mechanism is arranged at the bottoms of two ends of the front baffle frame (2), a lifting machine (4) positioned on one side of the locomotive (3) is fixed at the top of the base (1), an output end on the side wall of the lifting machine (4) is movably connected with a turnover machine (11), a loading box (7) is arranged at the top of the tail tractor (6), the side wall of the loading box (7) is connected with a turnover rod of the turnover machine (11), a rotating shaft (13) is connected at the bottom of one side of the loading box (7) far away from the turnover machine (11) in a penetrating way, two ends of the rotating shaft (13) are both provided with shaft seats (14) fixed on the tail drags (6), two pressing plates (12) are fixed at the bottom of one side of the loading box (7) close to the tilter (11), the bottoms of the two pressing plates (12) are connected with a pressing rod (23) connected into the tail towing (6), one end of the compression bar (23) connected into the tail tractor (6) is connected with a compressed air pipe (25), the compression rod (23) is connected into the compressed air pipes (25) and is connected with the piston (24) in the compressed air pipes (25), the side walls of the bottoms of the two compressed air pipes (25) are respectively connected with a traction telescopic rod (22), and the two traction telescopic rods (22) are respectively connected with a side protection plate (9);
the tail mop is characterized in that the outer walls of the rest three sides of the tail mop (6) close to the base (1) are respectively provided with an accommodating groove, the inner parts of two symmetrical accommodating grooves are respectively provided with a side protection plate (9), the inner part of the other accommodating groove is provided with a tail protection plate (10), a middle telescopic rod (20) is fixed in the tail mop (6), the telescopic end of the middle telescopic rod (20) is connected with the tail protection plate (10), the outer walls of the two sides of the middle telescopic rod (20) are respectively connected with a side telescopic rod (21), and the telescopic end of each side telescopic rod (21) is respectively connected with one side protection plate (9),
the middle telescopic rod (20) is communicated with the side telescopic rod (21), the compressed air pipe (25) is communicated with the traction telescopic rod (22), and the pressing rod (23) and the compressed air pipe (25) are both arc-shaped structures.
2. The electric locomotive with the safety protection mechanism and the storage battery for coal mine auxiliary transportation is characterized in that the safety protection mechanism comprises a wheel disc (17), a bottom gear (18), a top gear (19) and fan blades (8), the wheel disc (17) is connected to the inner side wall of a front blocking frame (2) in a shaft mode, a belt wheel (16) is arranged on the outer wall of one side of the wheel disc (17), the belt wheel (16) is connected with a track wheel (5) close to the front blocking frame (2) through a synchronous belt (15), the top gear (19) is arranged on the outer wall of the other side of the wheel disc (17), the bottom of the top gear (19) is meshed with the bottom gear (18), and the bottom shaft of the bottom gear (18) is connected with the fan blades (8).
3. The electric locomotive with the safety protection mechanism for the storage battery for coal mine auxiliary transportation is characterized in that the fan blades (8) and the rail wheels (5) are positioned on the same horizontal straight line, and the bottom height of the fan blades (8) is higher than the axle center height of the rail wheels (5).
4. The electric locomotive with the safety protection mechanism for the storage battery for the coal mine auxiliary transportation is characterized in that the loading box (7) is rotatably connected with the tail hauler (6) through the turnover machine (11) and the hoisting machine (4), and the loading box (7) rotates around the rotating shaft (13) when rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143334.4A CN112937626B (en) | 2021-02-02 | 2021-02-02 | Storage battery electric locomotive with safety protection mechanism for coal mine auxiliary transportation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110143334.4A CN112937626B (en) | 2021-02-02 | 2021-02-02 | Storage battery electric locomotive with safety protection mechanism for coal mine auxiliary transportation |
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| CN112937626A CN112937626A (en) | 2021-06-11 |
| CN112937626B true CN112937626B (en) | 2022-08-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19933914A1 (en) * | 1999-07-20 | 2001-01-25 | Siemens Krauss Maffei Lokomoti | Road clearers |
| CN205100151U (en) * | 2015-10-30 | 2016-03-23 | 华北科技学院 | Colliery underground transportation track clearance car |
| CN206570752U (en) * | 2017-02-22 | 2017-10-20 | 重庆工程职业技术学院 | A kind of mine track obstacle automatic cleaning apparatus |
| CN110816580A (en) * | 2019-11-30 | 2020-02-21 | 千水清源（湖北）科技有限公司 | Barrier removing device for coal mine rail transportation safety |
| CN110886270A (en) * | 2019-11-29 | 2020-03-17 | 济南轨道交通集团有限公司 | Railway track cleaning and maintaining device |
| CN211442298U (en) * | 2019-12-05 | 2020-09-08 | 内蒙古裕兴矿业有限公司 | High-safety underground coal mine car |
-
2021
- 2021-02-02 CN CN202110143334.4A patent/CN112937626B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19933914A1 (en) * | 1999-07-20 | 2001-01-25 | Siemens Krauss Maffei Lokomoti | Road clearers |
| CN205100151U (en) * | 2015-10-30 | 2016-03-23 | 华北科技学院 | Colliery underground transportation track clearance car |
| CN206570752U (en) * | 2017-02-22 | 2017-10-20 | 重庆工程职业技术学院 | A kind of mine track obstacle automatic cleaning apparatus |
| CN110886270A (en) * | 2019-11-29 | 2020-03-17 | 济南轨道交通集团有限公司 | Railway track cleaning and maintaining device |
| CN110816580A (en) * | 2019-11-30 | 2020-02-21 | 千水清源（湖北）科技有限公司 | Barrier removing device for coal mine rail transportation safety |
| CN211442298U (en) * | 2019-12-05 | 2020-09-08 | 内蒙古裕兴矿业有限公司 | High-safety underground coal mine car |
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| CN112937626A (en) | 2021-06-11 |
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