CN113911144A - Tractor for suspension vehicle - Google Patents
Tractor for suspension vehicle Download PDFInfo
- Publication number
- CN113911144A CN113911144A CN202111293959.5A CN202111293959A CN113911144A CN 113911144 A CN113911144 A CN 113911144A CN 202111293959 A CN202111293959 A CN 202111293959A CN 113911144 A CN113911144 A CN 113911144A
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- Prior art keywords
- coupler
- tractor
- bogie
- vehicle body
- traction motor
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- 238000004891 communication Methods 0.000 claims description 10
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- 238000010168 coupling process Methods 0.000 abstract description 14
- 238000005859 coupling reaction Methods 0.000 abstract description 14
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Images
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
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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
- B61F7/00—Rail vehicles equipped for use on tracks of different width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/10—Mounting of the couplings on the vehicle
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a tractor for a suspension vehicle, which comprises a vehicle body and a bogie connected below the vehicle body, wherein wheels and a traction motor for driving the wheels to rotate are arranged on the bogie, a power battery pack for supplying power to the traction motor is arranged on the vehicle body, a guide wheel disc which is used for contacting with the side surface of a track and can rotate relative to the bogie is coaxially arranged on one side of each wheel, and a coupler is arranged at the front end and/or the rear end of the vehicle body. The tractor can assist in completing the coupling of the suspended vehicles and the transfer of the vehicles in the garage, is convenient to operate, and saves time and labor.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a tractor for a suspension vehicle.
Background
The track tractor belongs to special vehicle, and at present, track tractor for railway has more maturely made the technology through many years's development.
The medium-low speed magnetic levitation track is a fixed structure for supporting and guiding the train to run, and comprises a magnetic conduction structure with an F-shaped section and an induction metal plate on the magnetic conduction structure. Besides the functions of bearing and transmitting the gravity, guiding force, traction force and braking force of the train of the traditional track, the traditional track also forms an electromagnetic loop with an electromagnet, a linear induction motor and a sensor which are arranged on the train to realize the functions of suspension, guiding, traction, braking and suspension clearance measurement. Compared with the conventional subway and high-speed railway, the medium-low speed magnetic levitation railway is different from the conventional subway and high-speed railway, the medium-low speed magnetic levitation railway is F-shaped, an aluminum induction plate for linear motor traction is arranged on the F-shaped railway, and a conventional railway traction locomotive cannot run on a magnetic levitation line. The F-shaped track is a foundation construction for bearing the suspension force, the guide force and the traction force of the magnetic suspension vehicle, and consists of F-shaped steel and an induction plate, wherein the induction plate is a component of a linear induction motor secondary for vehicle traction and is a non-magnetic conductive material arranged on the F-shaped track.
The middle-low speed magnetic suspension vehicle needs to be linked after being assembled, the linking process is to connect the car couplers of two cars needing to be linked together, and the car couplers cannot be lengthened or shortened in a large range because of rigidity, so that one car of the two cars is not moved during normal linking, the other car is pushed beside the stationary car, and the car couplers of the two cars are connected together. In the process of coupling, the vehicle runs by means of the supporting wheels arranged on the suspension frames (each suspension frame is provided with 8 supporting wheels, each section of medium-low speed magnetic suspension vehicle is provided with 5 suspension frames, and the suspension frames are similar to the bogie of the railway vehicle, so that the total number of the supporting wheels is 40). Because the supporting wheels are large in number and heavy in bearing capacity, the vehicle resistance is large, and the continuous hanging operation cannot be completed manually. The conventional mode of dragging through the steel wire rope beside the rail can only realize vehicle dragging, and can not realize continuous hanging. The vehicle can be dragged by using the hinge, but the hinge wastes time and labor, and the vehicle and the sleeper are easily damaged.
At present, a plurality of medium-low speed magnetic levitation lines for domestic commercial operation exist, wherein the track gauges of some lines are different, so that a general tractor capable of adapting to various track gauges is urgently needed. Wherein, the track gauge refers to the distance between the centers of two suspended magnetic pole faces at two sides of the track.
In the prior art, a tractor for installing, inspecting and rescuing a magnetic suspension traffic is provided, in order to improve friction force, a loading driving wheel is additionally arranged below an F-shaped track on the basis of a traveling bearing driving wheel of an F-shaped track sliding surface, the system is complex, the tractor can only penetrate the tractor from one side of the track by using a special vehicle, can only penetrate out from the section of the track after penetrating, and cannot be directly lifted, so that the tractor can only be applied to rescue of a straight magnetic suspension train, track maintenance and the like, and cannot meet the application requirement of continuous hanging of vehicles in a warehouse.
When a vehicle is hung in a warehouse, in order to pull the vehicle, in some prior art, a tool is arranged on a track panel, a pulley is arranged on the tool, one end of a steel wire rope is connected with a car coupler, the other end of the steel wire rope is connected with a ground winch, and the vehicle is pulled through the rotation of the winch. When linking the trailer, the scheme that is feasible at present uses the hinge, is connected to the section of track with hinge one end on, and the other end is connected on the automobile body, through the hinge pulling, infinitely approaches two magnetic levitation automobile bodies, accomplishes the coupling and links, because of factors such as distance, uses the hinge to move the car and need dismouting many times, and wastes time and energy.
Therefore, how to provide a device suitable for the magnetic levitation vehicle connection and the vehicle transportation in the garage is a technical problem to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the present invention provides a towing vehicle for a levitation vehicle, which can assist in coupling levitation vehicles and transferring vehicles in a garage, and is convenient to operate, time-saving and labor-saving.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a tractor for suspension vehicle, includes the automobile body and connect in the bogie of automobile body below, be provided with the wheel on the bogie and be used for the drive wheel pivoted traction motor, be provided with on the automobile body for traction motor provides the power battery group of electric energy, one side coaxial of wheel is provided with be used for with the track side contact and relative the rotatable direction rim plate of bogie, the front end and/or the rear end of automobile body are equipped with the coupling.
Preferably, an axle is arranged on the bogie, at least two wheels are arranged on the axle, and at least one wheel is connected to the axle in a way that the axial position of the axle is adjustable through a track gauge adjusting structure.
Preferably, the track gauge adjusting structure comprises a plurality of positioning holes arranged on the wheel axle along the axial direction of the wheel axle and positioning pins movably arranged on the wheel.
Preferably, at least two of said axles arranged in parallel are provided on said bogie, each said axle being provided with said traction motor and at least two of said wheels.
Preferably, the material of the outer circle of the wheel is flexible.
Preferably, the material of the excircle of the wheel is rubber.
Preferably, a speed reduction mechanism is disposed between the traction motor and the wheel.
Preferably, the traction motor is a permanent magnet synchronous motor, and a motor inverter is further arranged on the vehicle body.
Preferably, a coupler slide way for connecting the coupler and allowing the coupler to slide up and down is provided at a front end and/or a rear end of the car body, and a coupler locking structure for locking a height of the coupler is provided between the coupler and the coupler slide way.
Preferably, the coupler is used for with the one end that the coupler slide is connected is equipped with the coupler connecting plate, the coupler slide is including being used for the joint the draw-in groove of coupler connecting plate both sides, coupler locking structure includes the edge the extending direction of coupler slide set up in a plurality of screw holes of the lateral wall of draw-in groove and a plurality of with the screw hole runs through complex locking bolt.
Preferably, the coupler slide way is of a rack slide way structure.
Preferably, a counterweight device is further arranged on the vehicle body.
Preferably, the car body and/or the bogie is a frame structure formed by welding metal profiles.
Preferably, the tractor further comprises a wireless communication device and a remote control device, the wireless communication device is arranged on the vehicle body or the bogie and is connected with the traction motor, the remote control device is in communication connection with the wireless communication device, and the remote control device is used for controlling the starting, stopping and rotating speed of the traction motor.
The invention provides a tractor for suspending a vehicle, which comprises a vehicle body and a bogie connected below the vehicle body, wherein wheels and a traction motor for driving the wheels to rotate are arranged on the bogie, a power battery pack for supplying power to the traction motor is arranged on the vehicle body, a guide wheel disc which is used for contacting with the side surface of a track and can rotate relative to the bogie is coaxially arranged on one side of each wheel, and a coupler is arranged at the front end and/or the rear end of the vehicle body.
The working principle of the invention is as follows:
when needing the haulage vehicle, hoist this tractor to the suspension track on, link to each other the coupling of tractor with the coupling of waiting to haulage vehicle again, then, traction motor starts and drive wheel rotates, and at this moment, the tractor just drives through the coupling and waits to haulage vehicle to realize removing. When two vehicles need to be linked, the tractor is placed at the other end opposite to the vehicle linking end, and the vehicle to be linked is pushed to approach the other vehicle by the tractor until the couplers of the two vehicles are linked. In this process, the direction rim plate and the track side contact of tractor, and the direction rim plate is rotatable, can follow the wheel rotation when the tractor walks to avoid damaging the track.
The invention has the following beneficial effects:
1) the tractor provided by the invention can assist in completing the coupling of suspended vehicles and the transfer of the vehicles in the garage, and has a wide application range;
2) the tractor has simple structure and is convenient for hoisting operation;
3) the tractor drives the tractor to run by using the traction motor, is convenient to operate, and saves time and labor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a tractor according to an embodiment of the present invention placed on a track;
FIG. 2 is a schematic view of the overall structure of a towing vehicle in an embodiment of the present invention;
FIG. 3 is a schematic illustration of an axle to wheel connection in an embodiment of the present invention;
FIG. 4 is a top view of a coupler and coupler slide connection in an exemplary embodiment of the invention;
figure 5 is a side view of a coupler and coupler draft gear attachment in an exemplary embodiment of the invention.
The meaning of the various reference numerals in figures 1 to 5 is as follows:
the method comprises the following steps of 1-vehicle body, 2-vehicle wheel, 3-rail, 4-positioning hole, 5-wheel shaft, 6-traction motor, 7-speed reducing mechanism, 8-guiding wheel disc, 9-car coupler, 10-bogie, 11-power battery pack, 12-counterweight device, 13-motor inverter, 14-car coupler connecting plate, 15-car coupler slideway, 16-clamping groove and 17-threaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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 to 5, fig. 1 is a schematic structural view of a tractor placed on a track according to an embodiment of the present invention; FIG. 2 is a schematic view of the overall structure of a towing vehicle in an embodiment of the present invention; FIG. 3 is a schematic illustration of an axle to wheel connection in an embodiment of the present invention; fig. 4 and 5 are top and side views, respectively, of a coupler and coupler draft gear coupling in an embodiment of the present invention.
The invention provides a tractor for a suspension vehicle, which comprises a vehicle body 1 and a bogie 10 connected below the vehicle body 1, wherein wheels 2 and a traction motor 6 for driving the wheels 2 to rotate are arranged on the bogie 10, a power battery pack 11 for supplying electric energy to the traction motor 6 is arranged on the vehicle body 1, a guide wheel disc 8 which is used for being in contact with the side surface of a track 3 and can rotate relative to the bogie 10 is coaxially arranged on one side of each wheel 2, and a coupler 9 is arranged at the front end and/or the rear end of the vehicle body 1.
The working principle of the invention is as follows:
when needing the haulage vehicle, hoist this tractor to the suspension track on, link to each other the coupling of tractor with the coupling of waiting to haulage vehicle again, then, traction motor 6 starts and drive wheel 2 rotates, and at this moment, the tractor just drives through coupling 9 and waits to haulage vehicle to realize removing. When two vehicles need to be linked, the tractor is placed at the other end opposite to the vehicle linking end, and the vehicle to be linked is pushed to approach the other vehicle by the tractor until the couplers of the two vehicles are linked. In this process, the direction rim plate 8 of tractor and the side contact of track 3, and direction rim plate 8 is rotatable, can follow wheel 2 when the tractor walks and rotate to avoid damaging track 3.
It should be noted that the present invention can connect the wheels 2 directly to the bogie 10, or can be arranged on the bogie 10 through the wheel axle 5, preferably, the bogie 10 is provided with the wheel axle 5, the wheel axle 5 is provided with at least two wheels 2, and at least one wheel 2 is connected to the wheel axle 5 through the track gauge adjusting structure in a way of being adjustable along the axial position of the wheel axle 5. The positions of the wheels 2 in the axial direction of the wheel shaft 5 can be adjusted by arranging the track gauge adjusting structure, so that the distance between the wheels 2 on two sides is changed, and the tractor can be suitable for walking on suspension tracks on different track gauges.
It should be noted that the track gauge adjusting structure of the present invention may be designed in various forms, for example, a positioning manner using a positioning pin and a positioning hole, an adjusting manner using a locking nut and a lead screw to cooperate, or a manner using a sliding clamping device provided on the wheel axle 5. Preferably, the track gauge adjusting structure in the present scheme includes a plurality of positioning holes 4 arranged on the wheel axle 5 along the axial direction of the wheel axle 5 and a positioning pin movably arranged on the wheel 2. When the track gauge needs to be changed, the tractor is only required to be hoisted, the positioning pins on the wheels 2 are pulled out, the positions of the wheels 2 are adjusted, and then the positioning pins are inserted into the corresponding positioning holes 4, so that the distance between the wheels 2 on the two sides can be locked.
Preferably, the bogie 10 is provided with at least two parallel arranged axles 5, each axle 5 being provided with a traction motor 6 and at least two wheels 2. The tractor can move forward and backward by arranging the wheel shaft 5 and the traction motor 6 in the front and back directions of the tractor. The tractor can be designed into a structure with symmetrical front and back ends.
Preferably, the material of the outer circle of the wheel 2 is flexible. Specifically, the flexible material may be rubber, leather, flexible resin, or the like, and more preferably, the outer circumference of the wheel 2 is made of rubber. This scheme adopts flexible rubber material to arrange in 2 excircles of wheel, can play the shock attenuation effect on the one hand, and on the other hand can increase the frictional force between wheel 2 and the track 3 when the tractor walks to draw for the vehicle and provide bigger traction force.
Because of the limitation of the vehicle speed, and the flexible material is arranged on the excircle of the wheel 2, the air spring between the conventional vehicle body and the bogie can be eliminated, and the vehicle body 1 and the bogie 10 are rigidly connected, so that the overall rigidity of the tractor is improved.
Preferably, a speed reduction mechanism 7 is arranged between the traction motor 6 and the wheel 2. The speed reducing mechanism 7 may be an existing speed reducing gear box or a worm gear speed reducing mechanism, and the speed reducing mechanism 7 may be specifically disposed between the traction motor 6 and the wheel axle 5, and the wheel-side torque may be further increased by providing the speed reducing mechanism 7.
Preferably, the traction motor 6 is a permanent magnet synchronous motor, and the vehicle body 1 is further provided with a motor inverter 13. The motor inverter 13 directly converts the direct current of the power battery 11 into alternating current of variable frequency and variable voltage and supplies the alternating current to the traction motor 6. Of course, the traction motor 6 of the present scheme can also be an asynchronous motor or other traction motors. In addition, the power battery pack 11 can be configured according to specific application requirements, and in order to increase the weight, a lead-acid battery is selected and used in the scheme. Of course, a lithium battery may also be used as the power battery pack 11, and details thereof are not described herein. In order to increase the friction force between the wheels 2 and the track 3 and maintain the stress balance of the wheels 2 on both sides of the track 3, the present solution further provides a counterweight device 12 on the vehicle body 1, and the counterweight device 12 can be configured according to actual conditions.
Preferably, the vehicle body 1 and/or the bogie 10 are frame structures of welded metal profiles. As shown in fig. 2, a stainless steel profile or an aluminum alloy profile can be used to manufacture the frame structure, which not only simplifies the structure, but also facilitates the hoisting and moving of the tractor.
Preferably, a front end and/or a rear end of the car body 1 is provided with a coupler slide 15 for connecting the coupler 9 and allowing the coupler 9 to slide up and down, and a coupler locking structure for locking the height of the coupler 9 is provided between the coupler 9 and the coupler slide 15.
Preferably, a coupler connecting plate 14 is arranged at one end of the coupler 9 for being connected with a coupler slide way 15, the coupler slide way 15 comprises a clamping groove 16 for clamping two sides of the coupler connecting plate 14, and the coupler locking structure comprises a plurality of threaded holes 17 arranged on the side wall of the clamping groove 16 along the extending direction of the coupler slide way 15 and a plurality of locking bolts in penetrating fit with the threaded holes 17. When the height of the coupler 9 needs to be adjusted, the locking bolt is unscrewed, the coupler 9 and the coupler connecting plate 14 slide up and down relative to the coupler slideway 15, and after the coupler 9 moves to a target height position, the locking bolt is screwed into the threaded hole 17, so that the tail end of the locking bolt is abutted against the coupler connecting plate 14, the coupler connecting plate 14 is abutted against the coupler slideway 15, and position locking is realized.
Further preferably, in order to ensure a stable connection between the coupler connecting plate 14 and the coupler slide way 15, the coupler slide way 15 is designed to be of a rack slide way structure, as shown in fig. 5, and correspondingly, the surface of the coupler connecting plate 14 facing the coupler slide way 15 is also designed with corresponding fixing teeth.
Preferably, the tractor further comprises a wireless communication device and a remote control device, the wireless communication device is arranged on the vehicle body 1 or the bogie 10 and is connected with the traction motor 6, the remote control device is in communication connection with the wireless communication device, and the remote control device is used for controlling the starting, stopping and rotating speed of the traction motor 6. So set up, can be convenient for operating personnel remove at remote control operation control tractor, need not to set up the control cabinet on automobile body 1, still further simplified the structure of tractor.
The invention has the following beneficial effects:
1) the tractor provided by the invention can assist in completing the coupling of suspended vehicles and the transfer of the vehicles in the garage, and has a wide application range;
2) the tractor has simple structure and is convenient for hoisting operation;
3) the tractor is driven to travel by the traction motor 6, so that the operation is convenient, and the time and the labor are saved;
4) the outer circle of the wheel 2 is made of flexible materials, so that the friction force between the wheel 2 and the track 3 is increased, and the damping effect is achieved;
5) the wheels 2 can be adjusted in position according to the track gauge of the track 3, so that the adaptation to tracks with different track gauges is realized;
6) the tooth rail slideway structure is designed, and the difficulty in adjusting the height of the car coupler 9 is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. The tractor for suspending the vehicle is characterized by comprising a vehicle body and a bogie connected below the vehicle body, wherein wheels and a traction motor used for driving the wheels to rotate are arranged on the bogie, a power battery pack used for supplying power to the traction motor is arranged on the vehicle body, a guide wheel disc which is used for being in contact with the side face of a track and can rotate relative to the bogie is coaxially arranged on one side of each wheel, and a coupler is arranged at the front end and/or the rear end of the vehicle body.
2. The tractor of claim 1, wherein the bogie is provided with an axle on which at least two of the wheels are mounted, at least one of the wheels being adjustably connected to the axle by a gauge adjustment structure along an axial position of the axle.
3. The tractor of claim 2, wherein the gauge adjustment structure includes a plurality of locating holes disposed on the axle in an axial direction of the axle and locating pins movably disposed on the wheels.
4. The tractor of claim 2, wherein the bogie has at least two parallel arranged axles each having the traction motor and at least two wheels disposed thereon.
5. The tractor of claim 1, wherein the outer circumference of the wheel is flexible.
6. The tractor of claim 5, wherein the outer circumference of the wheel is made of rubber.
7. The tractor of claim 1, wherein a speed reduction mechanism is disposed between the traction motor and the wheel.
8. The tractor of claim 1, wherein the traction motor is a permanent magnet synchronous motor, and a motor inverter is further disposed on the vehicle body.
9. The tractor according to claim 1, wherein a front end and/or a rear end of the vehicle body is provided with a coupler slide for connecting the coupler and allowing the coupler to slide up and down, and a coupler locking structure for locking a height of the coupler is provided between the coupler and the coupler slide.
10. The tractor according to claim 9, wherein a coupler connecting plate is disposed at an end of the coupler, which is used for being connected to the coupler slide way, the coupler slide way includes a clamping groove for clamping two sides of the coupler connecting plate, and the coupler locking structure includes a plurality of threaded holes disposed on a side wall of the clamping groove along an extending direction of the coupler slide way and a plurality of locking bolts engaged with the threaded holes in a penetrating manner.
11. The tractor of claim 9, wherein the coupler slide is a rack slide configuration.
12. The tractor of claim 1, wherein a counterweight device is further disposed on the body.
13. The tractor of claim 1, wherein the body and/or the bogie is a welded metal profile frame structure.
14. The tractor of claim 1, further comprising a wireless communication device disposed on the vehicle body or the bogie and coupled to the traction motor, and a remote control device communicatively coupled to the wireless communication device for controlling the start, stop, and speed of the traction motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293959.5A CN113911144A (en) | 2021-11-03 | 2021-11-03 | Tractor for suspension vehicle |
| PCT/CN2021/133018 WO2023077572A1 (en) | 2021-11-03 | 2021-11-25 | Tractor for magnetic levitation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293959.5A CN113911144A (en) | 2021-11-03 | 2021-11-03 | Tractor for suspension vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113911144A true CN113911144A (en) | 2022-01-11 |
Family
ID=79244930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293959.5A Pending CN113911144A (en) | 2021-11-03 | 2021-11-03 | Tractor for suspension vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113911144A (en) |
| WO (1) | WO2023077572A1 (en) |
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| CN102700430A (en) * | 2012-06-06 | 2012-10-03 | 南车株洲电力机车有限公司 | Railway vehicle and guiding device thereof |
| CN109094586A (en) * | 2018-09-12 | 2018-12-28 | 大连铁丰轨道交通装备有限责任公司 | Magnetic suspension train draws maintenance engineering vehicle |
| CN110641484A (en) * | 2019-10-30 | 2020-01-03 | 山东东大动力科技有限公司 | Rail electric tractor |
| CN113352903A (en) * | 2021-08-10 | 2021-09-07 | 西南交通大学 | Wheel rail-permanent magnet suspension hybrid bearing bogie |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2023077572A1 (en) | 2023-05-11 |
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