CN214084249U - Active tilting device for railway vehicle - Google Patents
Active tilting device for railway vehicle Download PDFInfo
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- CN214084249U CN214084249U CN202120003741.0U CN202120003741U CN214084249U CN 214084249 U CN214084249 U CN 214084249U CN 202120003741 U CN202120003741 U CN 202120003741U CN 214084249 U CN214084249 U CN 214084249U
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- sleeper beam
- air
- tilting device
- active
- air spring
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Abstract
The utility model provides a rail vehicle initiative pendulum device that inclines for providing the vertical left and right sides difference in height of the pendulum process automobile body that inclines, the pendulum device that inclines includes the sleeper beam, the sleeper beam below is provided with two and is air spring, and the sleeper beam includes: the upper sleeper beam is connected with the vehicle body; the lower sleeper beam is arranged opposite to the upper sleeper beam and is provided with an additional air chamber of a secondary air spring; the tilting device further comprises a tilting unit, and the tilting unit is arranged between the upper sleeper beam and the lower sleeper beam. The utility model has simple structure and lower cost, and is beneficial to the light weight of the rail vehicle; the railway vehicle can have better curve passing capacity without reforming a bogie frame and other suspension units of a secondary system.
Description
Technical Field
The utility model belongs to the technical field of the rail vehicle automobile body inclines to put, especially, relate to a rail vehicle initiative inclines to put.
Background
The high speed and comfort are the development trend of rail vehicles, but due to the limitation of line conditions, such as the characteristics of large quantity of curve segments, more small-radius curves and the like, the unbalanced centrifugal force of the vehicle in the turning process can be increased by simply increasing the running speed of the vehicle, and the comfort of passengers and the safety and stability of the vehicle are influenced. Considering the factors of high cost, high maintenance cost, high technical requirements and the like of the construction of a high-speed railway, the vehicle is expected to be transformed on the existing railway, so that the aim of improving the running speed of the vehicle is fulfilled.
The pendulum train is an effective technical measure for speeding up the existing line, and is characterized in that when a vehicle enters a curve section, line information is measured by a detection system, and the line information is transmitted to a control system to calculate an inclination angle which needs to be additionally generated by a train body, namely an additional super-high is added, so that the centripetal force is increased, most of the overspeed centrifugal force is balanced, the train can stably pass through the curve at a high speed, the centrifugal force felt by passengers is greatly reduced, and the riding comfort is obviously improved.
The tilting device is one of key technologies for realizing the tilting of the vehicle body, and directly influences the selection of design parameters of a tilting system and the return rigidity of the vehicle body after the vehicle body tilts and finally influences the performance of the vehicle. The present tilting mechanism of a pendulum train has 4 modes, including: the four-hanger-rod type tilting mechanism, the rolling guide rail type tilting mechanism, the side rolling torsion bar type tilting mechanism and the air spring tilting mechanism. The first three tilting systems have complex structures and high total system cost. The air springs are common suspension devices, and the swing type train can also enable the train body to tilt by controlling the lifting of the left and right air springs. But the inclination angle of the vehicle body is influenced by the lifting amount of the air spring, the maximum inclination angle of the vehicle body is 2 degrees-3 degrees, the running speed of the vehicle can be improved by 20-30 percent, and the device is suitable for a small-radius curve line with limited running speed. The air spring active control tilting structure is relatively simple, but has better curve passing capacity. This tilting system has a great advantage from the viewpoint of weight reduction without requiring a large modification of the bogie frame. However, the air spring tilting mechanism increases the stroke of the secondary suspension, and will bring about corresponding transformation of other damping components of the secondary suspension, such as an anti-roll torsion bar, a secondary vertical damper, a height valve, a differential pressure valve, and the like, so that the existing air spring tilting mechanism needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned technical problem, a rail vehicle initiative pendulum device that inclines is provided, and this initiative pendulum device that inclines provides the vertical difference in height in automobile body both sides, only needs to improve the sleeper beam structure, has avoided the transformation of other secondary suspension parts, and the device's sleeper beam intensity is high, light in weight, is favorable to the vehicle lightweight.
In order to achieve the above object, the utility model discloses a technical scheme be:
provided is a rail vehicle active tilting device, comprising:
the sleeper beam, sleeper beam below is provided with secondary air spring, and the sleeper beam includes:
the upper sleeper beam is connected with the vehicle body;
the lower sleeper beam is arranged opposite to the upper sleeper beam and is provided with an additional air chamber of a secondary air spring;
and the tilting unit is arranged between the upper sleeper beam and the lower sleeper beam.
Preferably, the tilting unit is a plurality of dampers.
Preferably, the tilting unit is a plurality of air springs.
Preferably, a steel cylinder is sleeved on the outer side of the air spring and fixedly connected below the upper sleeper beam.
Preferably, a gap S is formed between the steel cylinder and the inner wall of the lower sleeper beam.
Preferably, the air spring includes:
an air bag;
the upper cover is connected to the opening at the upper end of the air bag in a sealing manner and is connected with the lower part of the upper sleeper beam;
the base is hermetically connected to the opening at the lower end of the air bag and is arranged on the lower sleeper beam;
the buffer is arranged in the air bag and fixedly installed on the base.
Preferably, the damper is a rubber elastic element or a hydraulic damper.
Preferably, the upper bolster and the air inlet hole of the upper cover are correspondingly provided with an air inflation hole.
Preferably, the steel wire rope is provided with a preset length, one end of the steel wire rope is connected with the upper sleeper beam, and the other end of the steel wire rope is connected with the lower sleeper beam.
Preferably, the bottom plate of the lower bolster is provided with a drain hole.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the utility model provides a rail vehicle initiative pendulum device that inclines for the vertical both sides difference in height of the pendulum process automobile body that inclines is provided, when curve bend, can supply the track superelevation. The device comprises a sleeper beam and a tilting unit, wherein the sleeper beam is divided into an upper sleeper beam and a lower sleeper beam, and the upper sleeper beam is high in structural strength and used for transmitting driving force and braking force to a vehicle body; the lower bolster acts as a built-in tilt unit and provides a secondary air spring additional air chamber and connects to other bogie suspension units. The device simple structure, the cost is lower, only needs to improve the sleeper beam structure, has effectively avoided the transformation of other suspension units of secondary, and is simple and convenient.
Drawings
Fig. 1 shows a linear line working state of the tilting device according to the embodiment of the present invention;
fig. 2 shows the working state of the curve line of the tilting device according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a tilting unit according to an embodiment of the present invention.
In the above figures: 1. a secondary air spring; 2. an upper sleeper beam; 21. a steel cylinder; 22. an inflation hole; 3. a lower bolster; 31. a drain hole; 4. a tilt unit; 5. a wire rope; 6. an air bag; 7. an upper cover; 71. an air inlet; 8. a base; 9. a buffer; 10. and an O-shaped ring.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
For better understanding of the above technical solutions, the above technical solutions are described in detail below with reference to fig. 1 to 3 and specific embodiments.
Referring to fig. 1, the utility model provides a rail vehicle initiative tilt device, include:
sleeper beam, sleeper beam below is provided with secondary air spring 1, and the sleeper beam includes:
the upper sleeper beam 2 is connected with the vehicle body;
the lower sleeper beam 3 is arranged opposite to the upper sleeper beam 2, and the lower sleeper beam 3 is provided with an additional air chamber of a secondary air spring 1; a bottom plate of the lower sleeper beam 3 is provided with a drain hole 31 for draining accumulated water in the sleeper beam;
and the tilting unit 4 is arranged between the upper bolster 2 and the lower bolster 3.
The device divides the sleeper beam into an upper sleeper beam 2 and a lower sleeper beam 3, wherein the upper sleeper beam 2 has high structural strength and is used for transmitting driving force and braking force to a vehicle body; the lower bolster 3 serves to provide additional air chambers for the secondary air springs 1 and to connect other truck suspension products. Preferably, the bottom plate of the lower bolster 3 is provided with a drain hole 31, and accumulated water in the bolster can be conveniently drained through the drain hole 31. The size, number and position of the drain holes 31 are determined according to the structures of the lower bolster 3 and the tilt unit 4. The tilting unit 4 is arranged inside the sleeper beam, provides height difference of the left side and the right side of the car body in the tilting process, avoids transformation of other secondary suspension units, and is simple in structure and low in cost. In the present embodiment, the tilting unit 4 is provided between the upper bolster 2 and the lower bolster 3, and preferably, a plurality of dampers or a plurality of air springs. When the curve is crossed, the curve inner side tilting unit 4 does not act, the outer side tilting unit 4 is controlled to act, the height is increased by h, the outer side vehicle body is lifted, the additional track is ultrahigh, and the riding comfort is improved.
Further, with continued reference to fig. 1 and 2, the active tilt device further includes a steel wire rope 5 having a preset length, one end of the steel wire rope 5 is connected to the upper bolster 2, and the other end is connected to the lower bolster 3. In this embodiment, wire rope 5 has preset length, controls the biggest height of raising of outside automobile body, avoids the automobile body to incline too big.
When the tilting unit 4 is preferably a plurality of air springs, the air springs are arranged between the upper bolster 2 and the lower bolster 3, and are built-in air springs, and the air springs include, but are not limited to, membrane type air bag air springs or large curved bag air springs or belt type air springs, and double curved air springs. When the air spring structure is designed, the air spring with a larger effective diameter is designed in a space as small as possible, and enough bearing capacity can be provided to push the vehicle body to tilt; meanwhile, the required air pressure and the volume of the air spring body are reduced, and the energy consumption is reduced; the design of proper rigidity provides better vehicle dynamic performance in the tilting process, and improves the riding comfort of passengers.
Specifically, in the present embodiment, a diaphragm type air bag air spring is taken as an example for description, and referring to fig. 3, the air spring includes:
an air bag 6;
the upper cover 7 is connected to the opening at the upper end of the air bag 6 in a sealing manner, and the upper cover 7 is connected with the lower part of the upper sleeper beam 2;
the base 8 is connected to the opening at the lower end of the air bag 6 in a sealing mode, and the base 8 is installed on the lower sleeper beam 3;
and the buffer 9 is arranged in the air bag 6, and the buffer 9 is fixedly arranged on the base 8.
In the above embodiment, the air spring is internally provided with the buffer 9, when the rail vehicle runs out of a curve, the air spring at the outer side needs to exhaust air to reduce the height, and the buffer 9 can avoid rigid contact between the upper sleeper beam 2 and the lower sleeper beam 3 when the upper sleeper beam falls down. The damper 9 is preferably a rubber elastic element or a hydraulic damper, including but not limited to a rubber elastic element or a hydraulic damper. In this embodiment, the buffer 9 needs to have a proper rigidity and height, and according to the weight of the vehicle body (different vehicle weights according to the number of passengers) and the load change condition of the air spring built in the bolster, the buffer 9 has enough rigidity to slow down the falling impact force of the vehicle body, but cannot be too large, so as to avoid that the gap exists between the vehicle body and the bolster when the air spring built in the bolster is not inflated.
Further, a steel cylinder 21 is sleeved on the outer side of the air spring, and the steel cylinder 21 is fixedly connected below the upper sleeper beam 2 and used for limiting the overall dimension of an air spring air bag in the sleeper beam; meanwhile, a gap S is formed between the steel cylinder 21 and the inner wall of the lower bolster 3, and is used for limiting the transverse and longitudinal movement of the air spring.
With continued reference to fig. 3, the upper bolster 2 and an air spring upper cover 7 are provided with an inflation hole 22 at a position of one air inlet hole 71 for inflating the inside of the air spring. Specifically, in the embodiment, the upper cover 7 of the air spring is fixedly connected with the upper sleeper beam 2 through a bolt, and an O-ring 10 is arranged between the air inlet hole 71 and the upper sleeper beam 2; and the base 8 is arranged on the lower sleeper beam 3, and an O-shaped ring 10 is also arranged between the base 8 and the lower sleeper beam 3, so that the air tightness of the air spring is further improved.
The active tilting device of the embodiment is simple in structure, safe and reliable. When the railway vehicle runs in a straight line, the air spring arranged in the sleeper beam is in an airless state, and as shown in figure 1, the upper sleeper beam 2 is directly seated on the lower sleeper beam 3. When the curve is passed, the air spring arranged in the sleeper beam at the inner side of the curve does not need to move, the air spring arranged in the sleeper beam at the outer side is controlled to inflate, as shown in figure 2, the height is raised by h, the car body at the outer side is lifted, and the ultrahigh of the track is supplemented.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. Rail vehicle initiative tilt device which characterized in that includes:
the sleeper beam, sleeper beam below is provided with secondary air spring, and the sleeper beam includes:
the upper sleeper beam is connected with the vehicle body;
the lower sleeper beam is arranged opposite to the upper sleeper beam and is provided with an additional air chamber of a secondary air spring;
and the tilting unit is arranged between the upper sleeper beam and the lower sleeper beam.
2. The active railway vehicle tilting device according to claim 1, wherein the tilting unit is a plurality of dampers.
3. The active railway vehicle tilting device according to claim 1, wherein the tilting unit is a plurality of air springs.
4. The active tilting device for railway vehicles according to claim 3, characterized in that a steel cylinder is sleeved outside the air spring and fixedly connected below the upper sleeper beam.
5. The active railway vehicle tilting device according to claim 4, wherein a gap S is formed between the steel cylinder and the inner wall of the lower sleeper beam.
6. The active railway vehicle tilting device of claim 3, wherein the air spring comprises:
an air bag;
the upper cover is connected to the opening at the upper end of the air bag in a sealing manner and is connected with the lower part of the upper sleeper beam;
the base is hermetically connected to the opening at the lower end of the air bag and is arranged on the lower sleeper beam;
the buffer is arranged in the air bag and fixedly installed on the base.
7. The active railway vehicle tilting device according to claim 6, wherein the damper is a rubber elastic element or a hydraulic damper.
8. The active tilting device for railway vehicles as claimed in claim 6, wherein the air inlet holes of the upper bolster and the upper cover are provided with air inflation holes at positions corresponding to the positions of the air inlet holes.
9. The active tilting device for railway vehicles according to claim 1, further comprising a steel wire rope having a preset length, wherein one end of the steel wire rope is connected with the upper bolster, and the other end of the steel wire rope is connected with the lower bolster.
10. The active railway vehicle tilting device according to claim 1, wherein the bottom plate of the lower bolster is provided with a drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120003741.0U CN214084249U (en) | 2021-01-04 | 2021-01-04 | Active tilting device for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120003741.0U CN214084249U (en) | 2021-01-04 | 2021-01-04 | Active tilting device for railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214084249U true CN214084249U (en) | 2021-08-31 |
Family
ID=77437375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120003741.0U Active CN214084249U (en) | 2021-01-04 | 2021-01-04 | Active tilting device for railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214084249U (en) |
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2021
- 2021-01-04 CN CN202120003741.0U patent/CN214084249U/en active Active
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