Patent Grant
12129603
The present application is a national stage of International Application No. PCT/CN2018/104644 filed on Sep. 7, 2018, which claims priority to Chinese Patent Application No. 201811030486.8, filed on Sep. 5, 2018. The disclosures of these applications are hereby incorporated by reference in their entirety.
The disclosure relates to a railway vehicle gauge changing technology, and particularly to a ground railway transfer device and a gauge changing system.
A railway vehicle is usually divided into a monorail train and a double rail train. Among them, the double rail train runs along two rails having a same gauge therebetween. The gauge is a distance between two rails. Most countries or regions adopt a uniform gauge, but the gauge adopted by some countries or regions is different. The railway train needs to transfer railway before the railway train moves from a railway having one gauge to a railway having another gauge, that is, to adjust a distance between two wheels connected on the same axle in a railway train so that the distance between the wheels can adapt to a new gauge.
In related railway transfer technology, a ground railway transfer device is usually arranged between a wide gauge railway and a narrow gauge railway. The ground railway transfer device is configured for unloading a vertical load of a bogie of a railway vehicle, and applies a railway transfer driving force onto the bogie to change the distance between two wheels connected on the same axle. The wheels will fall down and roll on the ground after the wheels of the bogie leave the wide gauge (narrow gauge) railway. When the wheels reach the narrow gauge (wide gauge) railway, the wheels move up to the narrow gauge (wide gauge) railway to complete the railway transfer operation, by the vertical component of the traction force.
At the moment the wheels fall down, a greater vibration will be produced, which will have a certain impact on the service life of the components in the bogie. In addition, returning the wheels to the railway requires greater traction force and consumes higher kinetic energy.
The embodiments of the disclosure provide a ground railway transfer device and a gauge changing system, which can reduce energy consumption and reduce the vibration amplitude of the bogie.
An embodiment of a first aspect of the disclosure provides a ground railway transfer device for driving a railway vehicle to switch between a first railway and a second railway, the first railway has a gauge called as a first gauge, the second railway has a gauge called as a second gauge, the first gauge being different from the second gauge; in which the ground railway transfer device includes:
An embodiment of a second aspect of the disclosure provides a gauge changing system including: a gauge changing bogie and the above-mentioned ground railway transfer device.
The technical solution provided by embodiments of the disclosure uses the support rail arranged on the ground to unload the vertical load of the bogie in the railway vehicle, and uses the guide rail arranged on the ground to drive the bogie to perform the railway transfer operation, so that the bogie can switch between the first gauge and the second gauge. The technical solution also uses the transition plate arranged on the ground and located between the first railway and the second railway. The difference in a height direction between the top surface of the transition plate and the top surface of the first railway is equal to the distance between the wheel rim tip circle and the wheel tread of the railway vehicle. The transition plate is configured for supporting wheels after the wheels leave the first railway or the second railway, in which heights of the wheels do not change, so that the wheels will not fall down and thus large vibration can be avoided.
The present disclosure will become more fully understood from the accompanying drawings, which constitute a part of the disclosure. The illustrative embodiments of the disclosure and the description thereof are used to explain the disclosure, and do not constitute an improper limitation of the present disclosure. In the accompanying drawings:
Reference numerals are listed as follows.
In order to make the technical solutions and advantages of the embodiments of the disclosure clearer, the exemplary embodiments of the disclosure will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the disclosure, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the disclosure and the features in the embodiments can be combined with each other in the case of no conflict.
The embodiment of the disclosure provides a ground railway transfer device, which can drive a bogie to perform a railway transfer operation during traveling of a railway vehicle, so as to adapt to different gauges.
If the first gauge is smaller than the second gauge, the first railway is called a narrow gauge railway, and the second railway is called a wide gauge railway. If the first gauge is greater than the second gauge, the first railway is called a wide gauge railway, and the second railway is called a narrow gauge railway. The ground railway transfer device provided by this embodiment can drive a railway train to perform a railway transfer operation during traveling, so that the train can switch from a narrow gauge railway to a wide gauge railway or from a wide gauge railway to a narrow gauge railway without stopping.
In the embodiment, taking the first gauge being greater than the second gauge as an example, the implementation manner of the ground railway transfer device will be described in detail.
As shown in
The ground railway transfer device provided by the embodiment is a gauge changing bogie capable of changing the distance between the wheels. The bogie can adopt various manners. For example, the bogie can include: two half-frames arranged in parallel and a bolster extending across the two half-frames, in which the two half-frames can move with respect to each other. Two wheel pairs are arranged in parallel between the two half-frames, each wheel pair includes an axle and wheels arranged at both ends of the axle, the wheels move synchronously with the half-frame. A traction structure is provided between the bolster and each of the two half-frames, and the bolster can provide a traction force to the half-frame by the traction structure.
An area between the first railway 11 and the second railway 12 is provided as a railway transfer area, in which the ground railway transfer device is arranged. Each bogie can perform a railway transfer operation when entering the railway transfer area. For example, when the bogie leaves the first railway 11 and enters the railway transfer area, the ground railway transfer device drives the two half-frames to move towards each other to reduce the distance between the two wheels until the gauge corresponding to the second railway 12 is satisfied, after which the bogie can enter the second railway 12.
The support rail 21 is configured for supporting the bolster when the bogie enters the railway transfer area and raising the bolster so that the bolster no longer exerts a vertical pressure on the half-frames, but the traction force remains unchanged.
The guide rail 22 is configured for applying a driving force to the two half-frames to drive the two half-frames move toward each other to reduce the distance between the wheels.
When the railway vehicle travels on the first railway 11, the height of the wheel rim tip circle is the same as the height of the top surface of the transition plate 23. Therefore, the wheel rim contacts the transition plate 23 and thus the wheel will not fall down, when the bogie leaves the first railway 11. In this way, a smooth transition between the first railway 11 and the transition plate 23 is realized, and large vibration produced by the bogie is avoided.
Certainly, for bogie of other structure, the above mentioned support rail 21 and guide rail 22 can be implemented correspondingly to cooperate with the bogie to unload the vertical load, and then push the bogie for railway transfer operation.
The technical solution provided by the embodiment uses the support rail arranged on the ground to unload the vertical load of the bogie in the railway vehicle, and uses the guide rail arranged on the ground to drive the bogie to perform the railway transfer operation, so that the bogie can switch between the first gauge and the second gauge. The technical solution further uses the transition plate arranged on the ground and located between the first railway and the second railway; the difference in a height direction between the top surface of the transition plate and the top surface of the first railway is equal to the distance between the wheel rim tip circle and the wheel tread of the railway vehicle, and therefore the wheels are supported after the wheels leave the first railway or the second railway, in which the heights of the wheels do not change, so that the wheels will not fall down and thereby avoiding large vibration.
The embodiment is based on the above mentioned embodiment to optimize the ground railway transfer device.
As shown in
The first guide member 24 can be implemented in a variety of manners, as long as the wheels can be guided. Specifically, the embodiment is implemented in a way that: the first guide member 24 is parallel to the first railway 11 and is spaced from the first railway 11 by a gap. An end of the first guide member 24 facing toward the second railway 12 protrudes beyond the first railway 11 and a surface of the end facing toward the first railway 11 is provided with a first guide slope 241.
After the bogie has completed the railway transfer operation, the wheels first contact the first guide member 24 during moving forward, and the first guide slope 241 guides the wheels to enter the gap between the first guide member 24 and the first railway 11 so as to reach the first railway 11 more accurately.
Specifically, the first guide member 24 is a structure of long plate shape extending in a longitudinal direction and arranged inside the first railway 11, and the first guide member has an overlapping part that overlaps with the first railway 11 and extends beyond the first railway 11 toward a first end of the second railway 12.
There may be two first guide members 24, symmetrically arranged on the inside of two rails in the first railway 11, and there is a gap between each first guide member and the corresponding rail. The two first guide members 24 respectively guide two wheels, so as to avoid the excessive deviation of the wheels in the transverse direction, which may cause the first railway 11 to not be accurately reached.
The length of the first guide slope 241 along the longitudinal direction can be 200 mm or greater than 200 mm.
Further, a second guide member 25 can also be used. The second guide member 25 can be arranged inside the second railway 12 and configured for guiding the wheels traveling to the second railway 12. The wheels roll on the transition plate 23 after the wheels leave the first railway 11, and due to the loss of the guiding effect of the first railway 11, the wheels are easier to move in the transverse direction. The second guide member 25 can guide the wheels so that the wheels can travel to the second railway 12 accurately.
The second guide member 25 can be implemented in a variety of manners, as long as the wheels can be guided. Specifically, the embodiment is implemented in a way that: the second guide member 25 is arranged inside of the second railway 12, is parallel to the second railway 12 and is spaced from the second railway 12 by a gap. An end of the second guide member 25 facing toward the first railway 11 protrudes beyond the second railway 12. Therefore, after the bogie has completed the railway transfer operation, under the guiding effect of the second guide member 25, the wheels can enter the gap between the second guide member 25 and the second railway 12 so as to reach the second railway 12 accurately.
The second guide member 25 is a structure of long plate shape extending in the longitudinal direction. There may be two second guide members 25, symmetrically arranged inside of the two rails in the second railway 12, and there is a gap between each second guide member and the corresponding rail.
Further, when the second guide member 25 extends to an end of the first railway 11, there is no need to arrange a guide slope on the second guide 25. When wheels are changed from a wide gauge to a narrow gauge, the wheels can directly contact the second guide member 25 and undergo the guiding effect of the second guide member 25.
The embodiment is based on the above mentioned embodiment to optimize the ground railway transfer device.
The support rail 21 is configured for, when the bogie enters the rail transfer area, supporting the bolster and raising the bolster so that the bolster no longer exerts vertical pressure on the half-frames, but the traction force remains unchanged. The bolster falls back to the original position, and thus the vertical pressure on the half-frames is restored, when the railway transfer is completed.
The support rail 21 can be implemented in a variety of manners. For example, the following manners provided by the embodiment can be used.
The two support bodies 211 are symmetrically distributed on both sides of the transition plate 23 to support both ends of the bolster, so that both ends of the bolster are raised at the same time, and the raised heights are same.
The support structure can include: a transverse moving member arranged on the support body 211 and a vertical moving member arranged on the support body 211, the transverse moving member can move in the transverse direction, and the vertical moving member is arranged on the transverse moving member, and can move along the transverse direction with the transverse moving member until it moves below the bolster. The vertical moving member can also exert an upward thrust on the bolster. For example: the transverse moving member and the vertical moving member may adopt a hydraulic or pneumatic driver, in which the vertical moving member applies an upward thrust to the bolster to push the bolster to rise. After the railway transfer is completed, the bolster is then driven to fall back to the original position.
Alternatively, the support structure includes: a vertical moving member and a bearing member, in which the bearing member is arranged on the top of the vertical moving member. Correspondingly, both ends of the bolster are provided with a telescopic support part. When the bogie enters the railway transfer area, the support part extends in the transverse direction to above the bearing member, and the vertical moving member drives the bearing member to move upward, thereby exerting an upward thrust on the bolster to push the bolster to rise. After the railway transfer is completed, the bolster is then driven to fall back to the original position.
Alternatively, the following manner can be used. That is, the support structure can be a support plane 211a arranged on the top of the support body 211 and support slopes located at both ends of the support plane 211a. The support slopes at both ends are called: a first support slope 211b and a second support slope 211c respectively. The heights of support slopes gradually decrease from the middle of the support body 211 to the both ends of the support body. Correspondingly, telescopic support parts are arranged on the both ends of the bolster. Taking the bolster traveling from the first railway 11 to the second railway 12 as an example, the support part extends in the transverse direction to engage with the second support slope 211c when the bogie enters the railway transfer area. As the bogie continues to travel forward, the support part moves forward and upward along the support slope 211b, and the bolster is raised accordingly. When the support part reaches the support plane 211a, the loads of the bolster and the half-frames are completely unloaded, and then the guide rail 22 can apply a transverse thrust to the half-frames to allow the two half-frames to move toward each other. When the support part moves to the second support slope 211c at the other end, the support part moves forward and downward along the second support slope 211c, and the bolster falls accordingly.
Further, the length of the support plane 211a in the longitudinal direction is designed to be greater than the length of the transition plate 23. The support plane 211a has, at one end, an overlapping part that overlaps with the first railway 11, and has, at another end, an overlapping part that overlaps with the second railway 12. In other words, the entire first support slopes 211b are located on the both sides of the first railway 11, and the entire second support slopes 211c are located on the both sides of the second railway 12. In this way, the bolster can be raised by the support rail 21 to unload the vertical load, before the front wheels in the traveling direction of the bogie start to perform the railway transfer.
In addition, a roller can be arranged on the support part at each of both ends of the bolster, so that there is a rolling friction between the support part and the support body 211. In this way, on the one hand, the degree of wear on the support part and the support body 211 can be reduced, and on the other hand, the friction between the support portion and the support body 211 can be reduced, and thus unnecessary energy consumption can be reduced.
Further, a block portion 211d can be arranged on the top of the support body 211. Specifically, the block portion 211d can be a structure protruding from the top surface of the support body 211 and arranged on a side of the support body away from the transition plate 23. The block portion 211d can prevent the roller from falling from the outside of the support body 211 when the roller of the support part rolls on the top surface of the support body 211.
The block portion 211d can be arranged on the first support slope 211b, can be arranged on the second support slope 211c, or also can be arranged on the support plane 211a. Alternatively, the block portion 211d can be arranged on each of the support plane 211a, the first support slope 211b and the second support slope 211c.
The embodiment is based on the above mentioned embodiment to optimize the ground railway transfer device.
The function of the above mentioned guide rail 22 is to apply a driving force to the two half-frames so that the two half-frames move toward each other to reduce the distance between the wheels.
The guide rail 22 includes: two guide bodies 221 with a same structure which are symmetrically distributed on both sides of the transition plate 23. Each of the guide bodies 221 is provided with a guide structure, to provide a railway transfer driving force to a railway transfer guide member arranged on the bogie.
The guide body 211 can be implemented in a variety of manners. For example: The guide body 221 can be parallel to the first railway 11. The guide structure may be hydraulic or pneumatic. The guide structure pushes the half-frame to move in the transverse direction when the bogie enters the railway transfer area.
Alternatively, the guide rail 22 can adopt the following manner provided by the embodiment. As shown in
The railway transfer guide member is a structure arranged on the half-frame. When the bogie enters the railway transfer area, the railway transfer guide member is inserted downward into the guide groove 222. The center line of the guide groove 222 is at a set angle to the longitudinal direction. For example, as shown in
The transfer from wide gauge railway to narrow gauge railway is taken as an example. The bogie travels in a direction from the first railway 11 to the second railway 12, and the railway transfer guide member enters the guide groove 222 after the wheels at the front in the traveling direction leave the first railway 11. The guide grooves 222 on both sides have a tendency to retract inward, and the two half-frames are pushed to move toward each other by the railway transfer guide members. The two half-frames move in place when the railway transfer guides are disengaged from the guide grooves 222.
Further, ends of the two side walls of the guide groove 222 are provided with second guide slopes 223 for guiding the railway transfer guide member that will enter the guide groove 222, to allow the railway transfer guide member to enter the guide groove 222 more smoothly. The longitudinal length of the second guide slope 223 is 150 mm.
The center line of the guide groove 222 shown in
If the difference in the transverse distances between the two ends of the center line of the guide groove 222 and the extension line of the center line of the first rail 11 is equal to one half of the difference between the first gauge and the second gauge, the requirement for the first gauge and the second gauge can be met.
In addition, the transfer from the first railway 11 to the second railway 12 is taken as an example. For the bogie traveling forward, a wheel at the front is called a front wheel, and a wheel at the rear is called a rear wheel. The rear wheel just leaves the first railway 11 before the railway transfer guide member enters the guide groove 222 of the guide rail 22; and the front wheel just enters the second railway 12 when the railway transfer guide member leaves the guide groove 222. Thus, the length L3 of the transition plate 23 can be set to be greater than a sum of an axle distance of the bogie (that is, a sum of a distance between the railway transfer guide member and a center of a front axle, and a distance between the railway transfer guide member and a center of a rear axle), a length of the railway transfer guide member, and a length of the guide rail 22 in a longitudinal direction. For example, the axle distance of the bogie is 1.6 m, the length of the railway transfer guide member is 150 mm, and the length of the guide rail 22 in the longitudinal direction is 1 m, then the length of the transition plate 23 is L3=(1.6+0.15+1)m=2.75 m, or L3 can also be slightly larger than 2.75 m.
In
The embodiment is based on the above mentioned embodiment, and provides a specific implementation manner of railway transfer support members.
The railway transfer support member 33 includes: the driving member 331 and the driven member 332. One end of the driving member 331 is fixed on the bolster 32, and another end of the driving member is connected to the middle of the driven member 332. An end of the driven member 332 is hinged to the bolster 32. The driving member 331 can apply a thrust or a pulling force on the middle of the driven member 332 so that the driven member 332 can rotate relative to the bolster 32.
As shown in
The working process of the above mentioned railway transfer support member is as follow.
Working fluid is injected into the cylinder 3311 to push the piston rod 3312 to move outward when the railway transfer operation is required. By the cooperation of the slider 3313 with the sliding groove 3322, the driven member rotates relative to the bolster 32, such that the driven member turns upward to be substantially parallel to the bolster, and then roller 3321 can be engaged with the support rail 21.
After the railway transfer is completed, the working fluid in the cylinder 3311 is discharged, to pull the piston rod 3312 to retract inward. By the cooperation of the slider 3313 with the sliding groove 3322, the driven member rotates relative to the bolster 32, such that the driven member turns downward and is folded.
The embodiment is based on the above mentioned embodiment, and provides a specific implementation manner of the bogie.
For the power bogie, the half-frame is further provided with a motor hanger 311 for installing the traction motor 35. For a non-powered bogie, there is no need to provide the traction motor 35, and accordingly there is no need to provide a motor hanger 311.
Insertable connectors are arranged between the two half-frames 31. For example, a first insertable connector 371 and a second insertable connector 372 are arranged side by side on one of the two half-frames 31, and a second insertable connector 372 and a first insertable connector 371 are arranged side by side on the other one of the two half-frame 31. The second insertable connector 372 on one half-frame 31 is correspondingly inserted into the first insertable connector 371 on the other half-frame 31, and the second insertable connector 372 can stretch out and contract with respect to the first insertable connector 371 in the transverse direction.
The distance between the two half-frames 31 is reduced to adapt the railway with the narrow gauge, when the second insertable connector 372 is inserted into the first insertable connector 371. The distance between the two half-frames 31 is increased to adapt the railway with the wide gauge, when the second insertable connector 372 protrudes partly from the first insertable connector 371.
As shown in
As shown in
As shown in
As shown in
The traveling process of the bogie from the second railway 12 to the first railway 11 is similar to the above process, except that the guide rail 22 generates a pulling force on the half-frames 31, so that the two half-frames 31 move away from each other towards two sides to adapt to the first railway 11 with a wider gauge.
The embodiment provides a gauge changing system which includes: a gauge changing bogie and a ground railway transfer device provided in any one of the above embodiments.
As shown in
As shown in
As shown in
As shown in
The support rail arranged on the ground can be used to unload the vertical load of the bogie in the railway vehicle, and the guide rail arranged on the ground can be used to drive the bogie to perform the railway transfer operation, so that the bogie can switch between the first gauge and the second gauge. The transition plate arranged on the ground and located between the first railway and the second railway can also be used. The difference in a height direction between the top surface of the transition plate and the top surface of the first railway is equal to the distance between the wheel rim tip circle and the wheel tread of the railway vehicle. The transition plate therefore supports wheels after the wheels leave the first railway or the second railway, in which the heights of the wheels do not change, so that the wheels will not fall down and thus large vibration can be avoided.
In the description of the disclosure, it should be understood that, the orientation or positional relationship indicated by the terms such as “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “up”, “down”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” is based on the orientation or positional relationship shown in the drawings. It is intended only for the convenience of describing the disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the disclosure.
In addition, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the feature defined with “first” or “second” may include explicitly or implicitly one feature or a plurality of the features. In the description of the disclosure, “a plurality of” means at least two, such as two, three or more, unless specifically defined otherwise.
In the disclosure, unless otherwise clearly specified and limited, the terms “install”, “link”, “connect”, “fix” and other terms should be interpreted broadly. For example, it may be a fixed connection, a detachable connection, or an integrated connection; it may be a mechanical connection or an electrical connection or a mutual communication; it may be a direct connection, or an indirect connection by an intermediate medium; and it may also be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above mentioned terms in the disclosure can be understood according to specific circumstances.
Although the preferred embodiments of the disclosure have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the claims are intended to be interpreted as including the preferred embodiments and all changes and modifications within the scope of this disclosure.
Obviously, those skilled in the art can make various changes and modifications to the disclosure without departing from the spirit and scope of the disclosure. In this way, if these modifications and variations of the disclosure fall into the scope of the claims of the disclosure and their equivalent technologies, then the disclosure is also intended to include these modifications and variations.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201811030486.8 | Sep 2018 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2018/104644 | 9/7/2018 | WO |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2020/047852 | 3/12/2020 | WO | A |
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| Number | Date | Country | |
|---|---|---|---|
| 20210395952 A1 | Dec 2021 | US |
