CN113942350B - Railway bridge structure of highway and railway dual-purpose vehicle - Google Patents

Railway bridge structure of highway and railway dual-purpose vehicle Download PDF

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Publication number
CN113942350B
CN113942350B CN202111175103.8A CN202111175103A CN113942350B CN 113942350 B CN113942350 B CN 113942350B CN 202111175103 A CN202111175103 A CN 202111175103A CN 113942350 B CN113942350 B CN 113942350B
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CN
China
Prior art keywords
railway
railway bridge
highway
hydraulic cylinder
shaft
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Application number
CN202111175103.8A
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Chinese (zh)
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CN113942350A (en
Inventor
许贺洋
孟令川
许龙飞
周鸣鑫
崔元勋
高宁飞
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Sinotruk Qingdao Heavy Industry Co Ltd
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Sinotruk Qingdao Heavy Industry Co Ltd
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Priority to CN202111175103.8A priority Critical patent/CN113942350B/en
Publication of CN113942350A publication Critical patent/CN113942350A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
    • B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
    • 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
    • B61F1/00—Underframes
    • 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
    • B61F1/00—Underframes
    • B61F1/08—Details
    • 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

Abstract

The invention discloses a railway bridge structure of a highway and railway dual-purpose vehicle, which comprises a front railway bridge system and a rear railway bridge system, wherein the front railway bridge system is positioned at the rear side of a front steering rubber wheel of the highway and railway dual-purpose vehicle and runs by adopting a swing arm structure, the rear railway bridge system is positioned at the rear side of a rear driving rubber wheel of the highway and railway dual-purpose vehicle and runs by adopting a vertical up-down track structure, and the front railway bridge system and the rear railway bridge system are lifted and locked under the working condition of a highway; when the railway works, the front railway bridge system guides and supports the front car body in the rail, the rear railway bridge system falls into the rail and keeps the pressure to the rail through the compression spring, at the moment, the rear driving rubber wheels of the highway and railway dual-purpose car still land and drive the car to move forward and backward, and the whole car is in a slightly warped state, so that the railway car is simple in structure, low in cost and reliable in performance.

Description

Railway bridge structure of highway and railway dual-purpose vehicle
Technical Field
The invention belongs to the technical field of highway and railway dual-purpose vehicles, and particularly relates to a railway bridge structure of a highway and railway dual-purpose vehicle.
Background
At present, most railway bridge parts of highway and railway dual-purpose vehicles in the market are positioned at the front and rear positions of the vehicle body and are special railway drive bridges, and after the highway state is switched to the railway state, the whole vehicle is supported by the railway bridge to leave the ground and is converted into a railway bridge drive vehicle. The highway-railway switching mode has complex mechanism, high cost and large size of the whole car, and is not suitable for special and complex transportation scenes such as short-distance transportation, in a cave depot, embedding under a rail into a road surface and the like.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention aims to provide a railway bridge structure of a highway and railway dual-purpose vehicle, which is suitable for a transportation environment with a plane on a rail being level with a road surface, and is simple and reliable, small in size and low in cost.
The invention provides a railway bridge structure of a highway and railway dual-purpose vehicle, which comprises a front railway bridge system and a rear railway bridge system, wherein the front railway bridge system is positioned at the rear side of a front steering rubber wheel of the highway and railway dual-purpose vehicle and operates by adopting a swing arm type structure, the rear railway bridge system is positioned at the rear side of a rear driving rubber wheel of the highway and railway dual-purpose vehicle and operates by adopting a vertical up-down track structure, and the front railway bridge system and the rear railway bridge system are lifted and locked under the working condition of a highway; when the railway works, the front railway bridge system guides and supports the front car body in the rail, the rear railway bridge system falls into the rail and keeps the pressure to the rail through the compression spring, and at the moment, the rear driving rubber wheels of the highway and railway dual-purpose car still land and drive the car to move forward and backward, and the whole car is in a slightly warped state.
The front railway bridge system comprises a swing arm, railway bridge iron wheels and a front railway bridge shaft, wherein the swing arm comprises a left swing arm and a right swing arm, the left swing arm and the right swing arm are connected through the front railway bridge shaft, and the railway bridge iron wheels are arranged at two ends of the front railway bridge shaft.
The swing arm includes pneumatic cylinder upper bracket, pneumatic cylinder, preceding supporting seat, tripod and presss from both sides tight seat, pneumatic cylinder one end is connected with pneumatic cylinder upper bracket round pin axle, and the other end is connected with the tripod, preceding supporting seat and the tight seat of clamp are connected respectively at the both ends of tripod, the tight seat of clamp is connected the front railway axle.
And a limiting device is arranged at the top of the front supporting seat.
The tripod adopts an I-shaped welding frame structure.
The hydraulic cylinder upper support is welded and fixed on the frame upper beam of the highway and railway dual-purpose vehicle.
The hydraulic cylinder is provided with a hydraulic lock.
The rear railway bridge system comprises a lifting arm, a lifting hydraulic cylinder, rear railway bridge iron wheels and a rear railway bridge shaft, wherein the lifting arm comprises a left lifting arm and a right lifting arm, the left lifting arm, the right lifting arm and the lifting hydraulic cylinder are connected through the rear railway bridge shaft, and the rear railway bridge iron wheels are arranged at two ends of the rear railway bridge shaft.
The lifting arm comprises a slideway, a sliding arm and a lifting arm clamping seat, wherein the sliding arm is arranged on a convex sliding rail of the slideway, and the slideway is connected with a frame beam of the highway-railway dual-purpose vehicle through bolts.
The lifting hydraulic cylinder is located between the left lifting arm and the right lifting arm and is fixed on the rear railway axle through the compression cylinder axle connecting assembly, the compression cylinder axle connecting assembly comprises a shaft sleeve, a shaft seat and a clamping seat, the shaft seat and the clamping seat are clamped on the rear railway axle in an upper-lower fit mode, the shaft sleeve is fixed on the shaft seat, a compression spring is arranged in the shaft sleeve, the output end of the lifting hydraulic cylinder is located on the compression spring in the shaft sleeve, the upper end of the lifting hydraulic cylinder is connected with the lifting hydraulic cylinder upper support, and the lifting hydraulic cylinder upper support is welded and fixed on a frame of the highway-railway dual-purpose vehicle.
The railway bridge structure of the highway and railway dual-purpose vehicle has the advantages that the structure is simple and convenient, the front railway bridge system is arranged to play a supporting and guiding role, the rear railway bridge system is arranged to play a stabilizing and guiding role, the two systems are tightly matched, the use is flexible and stable, the rear driving rubber wheels of the original vehicle are utilized, the cost is low, the railway bridge structure can be widely applied to transportation and highway-railway switching in rails which are short-distance, embedded into the ground and have the upper plane level with the ground, and the performance is reliable.
Drawings
FIG. 1 is a schematic view of a highway driving pattern;
FIG. 2 is a schematic diagram of a railway travel mode;
FIG. 3 is a schematic diagram of a front rail bridge system;
FIG. 4 is a schematic view of a tripod structure;
FIG. 5 is a schematic diagram of the structure of the upper support of the hydraulic cylinder
FIG. 6 is a schematic diagram of a hydraulic cylinder configuration;
FIG. 7 is a schematic view of the front support structure;
FIG. 8 is a schematic view of the upper clamping seat structure;
FIG. 9 is a schematic view of the lower clamping seat structure;
FIG. 10 is a schematic view of the front axle construction;
FIG. 11 is a schematic view of a railway bridge iron wheel construction;
FIG. 12 is a schematic diagram of a rear rail bridge system;
FIG. 13 is an enlarged schematic view of the portion A of FIG. 12;
FIG. 14 is a schematic view of a slide construction;
FIG. 15 is a schematic view of a slider structure;
FIG. 16 is a schematic view of a compression cylinder shaft connection assembly;
the drawing is marked:
1. a front rail bridge system; 2. a rear railway axle system; 3. a front steering rubber wheel; 4. rear driving the rubber wheel; 5. a rail; 6. a front railway axle shaft; 7. railway bridge iron wheels; 8. a front support base; 9. a limiting device; 10. a hydraulic cylinder upper support; 10-1, double connecting lugs; 11. a hydraulic cylinder; 11-1, a hydraulic lock; 12. a tripod; 12-1, connecting shaft holes; 12-2, a pin shaft hole; 12-3, reinforcing plates; 13. a bolt; 14. a clamping seat; 14-1, an upper clamping seat; 14-2, a lower clamping seat; 15. a slide arm; 15-1, a chute; 16. a slideway; 16-1, a convex sliding rail; 17. a lifting hydraulic cylinder upper support; 18. a lifting hydraulic cylinder; 19. rear railway bridge iron wheels; 20. a clamping seat; 21. a shaft sleeve; 22. a compression spring; 23. and a shaft seat.
Detailed Description
The railway bridge structure of the highway and railway dual-purpose vehicle provided by the invention is described in detail below with reference to the accompanying drawings in combination with an embodiment.
Examples
Referring to fig. 1, the railway bridge structure of the dual-purpose rail car of the present embodiment includes a front railway bridge system 1 and a rear railway bridge system 2, wherein the front railway bridge system 1 is located at the rear side of a front steering rubber wheel 3 of the dual-purpose rail car, and operates in a swing arm type structure, the rear railway bridge system 2 is located at the rear side of a rear driving rubber wheel 4 of the dual-purpose rail car, and operates in a vertical up-down track structure, and during highway working conditions, the front railway bridge system 1 and the rear railway bridge system 2 are lifted and locked; referring to fig. 2, during railway conditions, the front railway bridge system 1 guides and supports the front vehicle body in the rail 5, the rear railway bridge system 2 falls into the rail 5 and keeps a downward pressure on the rail through the compression spring, and at the moment, the rear driving rubber wheel 4 of the highway and railway dual-purpose vehicle still lands and drives the vehicle to move forward and backward, and the whole vehicle is in a slightly warped state.
The front railway bridge system 1 described with reference to fig. 3-11 comprises a swing arm, a railway bridge iron wheel 7 and a front railway bridge shaft 6, wherein the swing arm comprises a left swing arm and a right swing arm, the left swing arm and the right swing arm are connected through the front railway bridge shaft 6, and the railway bridge iron wheel 7 is arranged at two ends of the front railway bridge shaft 6.
The swing arm comprises a hydraulic cylinder upper support 10, a hydraulic cylinder 11, a front supporting seat 8, a tripod 12 and a clamping seat 14, wherein one end of the hydraulic cylinder 11 is in pin shaft connection with the hydraulic cylinder upper support 10, the other end of the hydraulic cylinder 11 is connected with the tripod 12, the two ends of the tripod 12 are respectively connected with the front supporting seat 8 and the clamping seat 14, and the clamping seat 14 is connected with the front railway axle 6.
The front supporting seat is of a rigid thick ear seat welding structure and is welded and fixed on a front beam of the frame, and a limiting device 9 is arranged at the top of the front supporting seat 8.
The tripod 12 adopts an I-shaped welding frame structure, a reinforcing plate 12-3 is further arranged between an upper triangular plate and a lower triangular plate in an I shape, the bearing capacity is large, stability and reliability are achieved, a pin shaft hole 12-2 is arranged at an obtuse angle position of the tripod 12, a pin shaft penetrates through the pin shaft hole to connect the hydraulic cylinder 11 with the tripod 12, a connecting shaft hole 12-1 is arranged at the upper end of the tripod 12, the pin shaft penetrates through the connecting shaft hole to connect the front supporting seat 8 with the tripod 12, and the lower end of the tripod 12 is a straight end face and is welded with the clamping seat.
The hydraulic cylinder upper support 10 is welded and fixed on a frame upper beam of the highway and railway dual-purpose vehicle, the specific hydraulic cylinder upper support 10 is provided with a double connecting lug 10-1, and a pin shaft penetrates through the double connecting lug 10-1 to connect the hydraulic cylinder upper support 10 with the hydraulic cylinder 11.
The hydraulic cylinder 11 is provided with a hydraulic lock 11-1.
The clamping seat 14 comprises an upper clamping seat 14-1 and a lower clamping seat 14-2, the upper clamping seat 14-1 is of a thick plate structure, threaded holes are formed in four corners, the outer side of the lower clamping seat 14-2 is in an inverted-convex shape, semicircular grooves are formed in the inner side of the lower clamping seat, threaded holes corresponding to the upper clamping seat 14-1 are formed in the periphery of the lower clamping seat, one side of the front railway axle shaft 6 is arranged in the semicircular grooves of the lower clamping seat 14-2, and the front railway axle shaft 6 is clamped by penetrating through the threaded holes formed in the upper clamping seat and the lower clamping seat through bolts 13.
The front railway axle shaft 6 is a solid steel shaft.
The railway bridge iron wheel 7 is a steel wheel and is connected with the front railway bridge shaft 6 through a rolling bearing.
The rear railway axle system described with reference to fig. 12-16 comprises a lifting arm, a lifting hydraulic cylinder 18, a rear railway bridge iron wheel 19 and a rear railway bridge shaft, wherein the lifting arm comprises a left lifting arm and a right lifting arm, the left lifting arm, the right lifting arm and the lifting hydraulic cylinder 18 are connected through the rear railway bridge shaft, and the rear railway bridge iron wheel 19 is installed at two ends of the rear railway bridge shaft.
The lifting arm comprises a slide way 16, a slide arm 15 and a lifting arm clamping seat, wherein the slide arm 15 is arranged on a convex slide rail 16-1 of the slide way 16 through a slide groove 15-1, and the slide way 16 is connected with a frame beam of the highway-railway dual-purpose vehicle through bolts.
The lifting hydraulic cylinder 18 is located between the left lifting arm and the right lifting arm and is fixed on the rear railway axle through a compression cylinder axle connecting assembly, the compression cylinder axle connecting assembly comprises a shaft sleeve 21, a shaft seat 23 and a clamping seat 20, the shaft seat 23 and the clamping seat 20 are matched up and down to be clamped on the rear railway axle, the shaft sleeve 21 is fixed on the shaft seat, a compression spring 22 is arranged in the shaft sleeve, the output end of the lifting hydraulic cylinder 18 is located on the compression spring 22 in the shaft sleeve 21, the upper end of the lifting hydraulic cylinder 18 is connected with a lifting hydraulic cylinder upper support 17, and the lifting hydraulic cylinder upper support 17 is welded and fixed on a frame of the highway-railway dual-purpose vehicle.
The sliding arm 15 is of an I-shaped welding structure, is internally lined with a nylon sliding block and is welded and fixed with the lifting arm clamping seat.
When the road working condition is met, the hydraulic cylinder 11 and the lifting hydraulic cylinder 18 retract, and the front and rear railway bridge systems are lifted and locked;
when the railway works, the hydraulic cylinder 11 and the lifting hydraulic cylinder 18 extend out to push the front and rear railway bridge systems to fall into the rail 5, the front railway bridge system supports the front rubber wheels of the vehicle off the ground through the swing of the tripod 12, and the railway bridge iron wheels 7 guide and support the front vehicle body in the rail; the rear railway bridge system is pushed to fall into the rail, the rail is continuously pressed down, a certain pressing force is kept on the rail through the compression spring 22, at the moment, the rear driving rubber wheel is still grounded, the vehicle is driven to move forwards and backwards, and the whole vehicle is in a slightly tilting state.
The hydraulic cylinder 11 pushes the tripod 12 to drive the front railway bridge system to swing around the pin shaft, when the railway bridge iron wheel 7 touches the ground, the front railway bridge system continues to swing forwards by a certain angle, at the moment, the limiting device of the front supporting seat 8 is in contact with the tripod 12 and limits the tripod 12 to swing forwards, the hydraulic cylinder 11 is locked, the front steering rubber wheel 3 is supported to leave the ground, and the railway bridge iron wheel 7 is embedded into a rail to support a car body and guide.
In the rear railway bridge system, the lifting hydraulic cylinder 18 pushes the railway bridge to enable the sliding arm 15 to slide up and down along the slideway 16, when the rear railway bridge iron wheel 19 touches the ground, the compression spring 22 in the compression cylinder shaft connecting assembly continuously moves down, so that the rear railway bridge system generates certain downward pressure on the ground, at the moment, the lifting hydraulic cylinder 18 stops moving and is locked, the rear railway bridge iron wheel 19 is embedded into a rail, the rear railway bridge system is close to the rear rubber driving wheel, and the generated downward pressure has small influence on the driving of the driving wheel and can be ignored.

Claims (6)

1. A railway bridge structure of a highway and railway dual-purpose vehicle is characterized in that: the front railway bridge system is positioned at the rear side of a front steering rubber wheel of the highway-railway dual-purpose vehicle, and operates by adopting a swing arm structure, the rear railway bridge system is positioned at the rear side of a rear driving rubber wheel of the highway-railway dual-purpose vehicle, operates by adopting a vertical up-down track structure, and is lifted and locked under highway working conditions; when the railway works, the front railway bridge system guides and supports the front car body in the rail, the rear railway bridge system falls into the rail and keeps the pressure to the rail through the compression spring, at the moment, the rear driving rubber wheels of the highway and railway dual-purpose car still land and drive the car to move forwards and backwards, and the whole car is in a slightly warped state;
the front railway bridge system comprises a swing arm, railway bridge iron wheels and a front railway bridge shaft, wherein the swing arm comprises a left swing arm and a right swing arm, the left swing arm and the right swing arm are connected through the front railway bridge shaft, and the railway bridge iron wheels are arranged at two ends of the front railway bridge shaft;
the swing arm comprises a hydraulic cylinder upper support, a hydraulic cylinder, a front supporting seat, a tripod and a clamping seat, one end of the hydraulic cylinder is connected with the hydraulic cylinder upper support through a pin shaft, the other end of the hydraulic cylinder is connected with the tripod, two ends of the tripod are respectively connected with the front supporting seat and the clamping seat, and the clamping seat is connected with a front railway axle;
the rear railway bridge system comprises a lifting arm, a lifting hydraulic cylinder, a rear railway bridge iron wheel and a rear railway bridge shaft, wherein the lifting arm comprises a left lifting arm and a right lifting arm, the left lifting arm, the right lifting arm and the lifting hydraulic cylinder are connected through the rear railway bridge shaft, the rear railway bridge iron wheel is installed at two ends of the rear railway bridge shaft, the lifting hydraulic cylinder is located between the left lifting arm and the right lifting arm and is fixed on the rear railway bridge shaft through a compression cylinder shaft connecting assembly, the compression cylinder shaft connecting assembly comprises a shaft sleeve, a shaft seat and a clamping seat, the shaft seat and the clamping seat are clamped on the rear railway bridge shaft in an up-down matching manner, the shaft sleeve is fixed on the shaft seat, a compression spring is arranged in the shaft sleeve, the output end of the lifting hydraulic cylinder is located on the compression spring in the shaft sleeve, the upper end of the lifting hydraulic cylinder is connected with an upper support of the lifting hydraulic cylinder, and the upper support of the lifting hydraulic cylinder is welded and fixed on a frame of the highway-railway dual-purpose vehicle.
2. The highway and railway two-purpose vehicle railway bridge structure according to claim 1, wherein: and a limiting device is arranged at the top of the front supporting seat.
3. The highway and railway two-purpose vehicle railway bridge structure according to claim 1, wherein: the tripod adopts an I-shaped welding frame structure.
4. The highway and railway two-purpose vehicle railway bridge structure according to claim 1, wherein: the hydraulic cylinder upper support is welded and fixed on the frame upper beam of the highway and railway dual-purpose vehicle.
5. The highway and railway two-purpose vehicle railway bridge structure according to claim 1, wherein: the hydraulic cylinder is provided with a hydraulic lock.
6. The highway and railway two-purpose vehicle railway bridge structure according to claim 1, wherein: the lifting arm comprises a slideway, a sliding arm and a lifting arm clamping seat, wherein the sliding arm is arranged on a convex sliding rail of the slideway, and the slideway is connected with a frame beam of the highway-railway dual-purpose vehicle through bolts.
CN202111175103.8A 2021-10-09 2021-10-09 Railway bridge structure of highway and railway dual-purpose vehicle Active CN113942350B (en)

Priority Applications (1)

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CN202111175103.8A CN113942350B (en) 2021-10-09 2021-10-09 Railway bridge structure of highway and railway dual-purpose vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111175103.8A CN113942350B (en) 2021-10-09 2021-10-09 Railway bridge structure of highway and railway dual-purpose vehicle

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CN113942350B true CN113942350B (en) 2023-08-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29712695U1 (en) * 1997-07-17 1997-09-18 Zweiweg Schneider Gmbh & Co Kg Road vehicle
JP2001315512A (en) * 2000-05-02 2001-11-13 Aichi Corp Road/rail working vehicle
CN103264625A (en) * 2013-05-31 2013-08-28 中国人民解放军军事交通学院 Towing vehicle capable of being used for both roads and rails
CN205930078U (en) * 2016-08-27 2017-02-08 大连铁丰轨道交通装备有限责任公司 A track guider that is used for public indisputable car of internal combustion
CN109455046A (en) * 2018-11-20 2019-03-12 株洲时代电子技术有限公司 A kind of road rail vehicle rail guiding device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0201554L (en) * 2002-05-24 2003-05-13 Sjoelanders Smides Och Mek Ver Vehicles for driving on both road and railroad tracks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29712695U1 (en) * 1997-07-17 1997-09-18 Zweiweg Schneider Gmbh & Co Kg Road vehicle
JP2001315512A (en) * 2000-05-02 2001-11-13 Aichi Corp Road/rail working vehicle
CN103264625A (en) * 2013-05-31 2013-08-28 中国人民解放军军事交通学院 Towing vehicle capable of being used for both roads and rails
CN205930078U (en) * 2016-08-27 2017-02-08 大连铁丰轨道交通装备有限责任公司 A track guider that is used for public indisputable car of internal combustion
CN109455046A (en) * 2018-11-20 2019-03-12 株洲时代电子技术有限公司 A kind of road rail vehicle rail guiding device

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