Bogie, rail vehicle and rail transit system

Abstract

The utility model relates to a bogie, a rail vehicle and a rail transit system, and the bogie comprises two groups of mutually independent suspension assemblies which are respectively used for being connected with a vehicle body and are used for being correspondingly connected with walking wheels on the left side and the right side in a one-to-one manner; the driving assembly is used for being connected with the walking wheels on the left side and the right side, at least part of each set of hanging assembly is located on the first side of the corresponding walking wheel, the first side is configured to be the side, away from the other walking wheel, of the corresponding walking wheel, and the driving assembly is arranged between the walking wheels on the left side and the right side. The arrangement space in the middle of the whole bogie is increased and used for arranging a driving assembly, and driving power is increased. And each bogie of the vehicle can be arranged into the independent suspension, so that the driving power of each bogie is stronger. And a large drive can be replaced by a plurality of small drives, so that the maintenance cost is saved. And the space in the middle of the whole bogie is increased, so that the maintenance space is enlarged, and the maintenance is more convenient.

Description

Technical Field

[0001] The present disclosure relates to the technical field of bogies, and in particular, to a bogie, a rail vehicle and a rail transit system. Background Art

[0002] In rail transit systems, rail vehicles use bogies to turn on the track, and the bogies need to be powered by a drive mechanism. In the prior art, independent suspensions are set up to improve the running stability of vehicles. However, independent suspensions have many components, and it is difficult to arrange a separate power drive for a bogie with independent suspension. Therefore, it needs to be driven by the power of other non-independent bogies of the vehicle, resulting in poor power performance of the bogie. Utility Model Content

[0003] An object of the present disclosure is to provide a bogie, a rail vehicle and a rail transit system to at least partially solve the problems existing in the related art.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a bogie, comprising: two groups of independent suspension components, the two groups of suspension components are respectively used to connect to the car body, and are used to connect to the running wheels on the left and right sides in a one-to-one correspondence; and a drive component, which is used to connect to the running wheels on the left and right sides, wherein at least a portion of each group of the suspension components is located on a first side of the corresponding running wheel, the first side is configured as a side of the corresponding running wheel away from the other running wheel, and the drive component is arranged between the running wheels on the left and right sides.

[0005] Optionally, the drive assembly includes a drive motor, a drive shaft, a differential and a transmission shaft, the drive motor is connected to the differential via the drive shaft, the differential is connected to the two transmission shafts, and the two transmission shafts are respectively hinged to the two running wheels.

[0006] Optionally, the drive motor is mounted on the vehicle body.

[0007] Optionally, the suspension assembly includes a suspension for connecting between the vehicle body and the running wheels, and the suspension is arranged on a first side of the corresponding running wheel.

[0008] Optionally, the suspension includes a spring, and the suspension is used to be connected between the vehicle body and the running wheels, and / or the suspension includes a shock absorber, and the shock absorber is used to be connected between the vehicle body and the running wheels.

[0009] Optionally, the suspension assembly includes: a steering yoke, used to be hinged to the running wheel, and the suspension is connected to the running wheel through the steering yoke; a first swing arm, one end of which is hinged to the upper part of the steering yoke, and the other end is hinged to the vehicle body; and a second swing arm, one end of which is hinged to the lower part of the steering yoke, and the other end is hinged to the vehicle body.

[0010] Optionally, the first swing arm and the second swing arm are arranged on the first side of the corresponding running wheel, or the steering yoke, the first swing arm and the second swing arm are all arranged on the first side of the corresponding running wheel.

[0011] Optionally, the two groups of suspension components are respectively mounted on the vehicle body via mounting frames, and the mounting frames are configured as trusses.

[0012] Optionally, the bogie includes: a first steering arm, used to connect between the running wheel on the left and the guide wheel on the left; a second steering arm, used to connect between the running wheel on the right and the guide wheel on the right; and a first steering rod, connected left and right between the first steering arm and the second steering arm.

[0013] Optionally, the number of the first steering arms is two, which are used to connect the two guide wheels on the left side; the number of the second steering arms is two, which are used to connect the two guide wheels on the right side; the bogie also includes a second steering rod connected between the first steering arm and the second steering arm on the left and right sides; the second steering rod is spaced apart from the first steering rod in front and behind, and the second steering rod is configured to be retractable left and right.

[0014] Optionally, the bogie includes a steering knuckle for being articulated with the running wheels, the bottom of the steering knuckle is connected to a connecting piece, and the first steering arm and the second steering arm are respectively connected to the bottom of the connecting piece on corresponding sides.

[0015] Optionally, an anti-rollover baffle is fixedly connected to the steering knuckle, and the anti-rollover baffle is used to be arranged opposite to the track beam.

[0016] According to a second aspect of an embodiment of the present disclosure, there is provided a rail vehicle, comprising a vehicle body and a bogie provided by the present disclosure.

[0017] According to a third aspect of an embodiment of the present disclosure, there is provided a rail transit system, comprising a rail beam and a rail vehicle provided by the present disclosure.

[0018] Through the above technical solution, at least part of the structure of the suspension assembly is arranged on the side of the two running wheels away from each other, so that the layout space in the middle of the entire bogie can be increased for arranging the drive assembly. The drive assembly can be set on the independently suspended bogie for driving, thereby increasing the driving power. Therefore, each bogie of the vehicle can be arranged into such an independent suspension, so that the driving power of each bogie is stronger, and there is no need to set up a non-independent bogie to set up the drive assembly. In addition, the technical solution of configuring one drive assembly for each bogie replaces the technical solution of configuring one drive assembly for multiple bogies, and multiple small drives can replace a large drive, saving maintenance costs. In addition, the increase in the space in the middle of the entire bogie can also make the maintenance space larger, and it is more convenient during maintenance.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 The diagram is a schematic diagram showing a rail vehicle running on a flat road according to an exemplary embodiment.

[0022] Figure 2 The diagram is a schematic diagram showing a rail vehicle running on an uneven road surface according to an exemplary embodiment.

[0023] Figure 3 is a top view of a bogie according to an exemplary embodiment.

[0024] Figure 4 is a partial view of the right side of a bogie shown according to an exemplary embodiment.

[0025] Figure 5 is a schematic diagram of a guide portion of a bogie according to an exemplary embodiment.

[0026] Figure 6 is a schematic diagram of a mounting bracket according to an exemplary embodiment.

[0027] Description of Reference Numerals

[0028] 10-car body, 20-traveling wheel, 22-track beam, 30-guide wheel, 32-guide beam, 100-mounting frame, 2211-spring mounting interface, 2221-shock absorber mounting interface, 241-first swing arm mounting interface, 251-second swing arm mounting interface, 200-suspension assembly, 210-steering yoke, 220-suspension, 221-spring, 222-shock absorber, 240-first swing arm, 250-second swing arm, 301-steering knuckle, 302-connecting piece, 310-first steering arm, 320-second steering arm, 330-first steering tie rod, 370-second steering tie rod, 371-elastic piece, 380-anti-rollover baffle, 400-drive assembly, 410-drive motor, 420-drive shaft, 430-differential, 440-drive shaft, 441-universal joint. DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, directional words such as "up, down, horizontal, vertical" are defined according to the direction of use of the vehicle, "lateral" refers to the left and right direction of the vehicle, "longitudinal" refers to the front and rear direction of the vehicle, "left, right" refers to the direction facing the front of the vehicle, and is defined according to the front view of the vehicle. The specific directions of "up, down, left, right" can be referred to in detail. Figure 1 The terms "inside" and "outside" are defined according to the outline of the corresponding parts. The terms "first" and "second" used in this disclosure are to distinguish one element from another and have no order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0031] Reference Figure 1 and Figure 2The present disclosure provides a bogie, including two sets of independent suspension components 200 and a drive component 400. The two sets of suspension components 200 are respectively used to connect with the vehicle body 10, and are used to connect with the running wheels 20 on the left and right sides in a one-to-one correspondence, that is, the suspension component 200 on the left is connected to the running wheel 20 on the left, and the suspension component 200 on the right is connected to the running wheel 20 on the right, so that the movement between the running wheels 20 on both sides can be independent and do not affect each other. The independent suspension method can make the running wheels 20 on the left and right sides move independently without affecting each other. When the running heights on both sides are different, the displacements of the two running wheels 20 in the vertical direction will not affect each other, thereby reducing the impact of the uneven running surfaces on the vehicle movement, reducing bumps, and improving driving smoothness and driving comfort. The drive component 400 is used to connect with the running wheels 20 on the left and right sides to provide steering power for the running wheels 20.

[0032] At least part of each suspension assembly 200 is located on the first side of the corresponding running wheel 20, and the first side is configured as the side of the corresponding running wheel 20 away from another running wheel 20, and the driving assembly 400 is arranged between the running wheels 20 on the left and right sides. Figure 1 The first side of the left running wheel 20 is its left side, and at least a portion of the left suspension assembly 200 is located on the left side of the left running wheel 20. The first side of the right running wheel 20 is its right side, and at least a portion of the right suspension assembly 200 is located on the right side of the right running wheel 20. The drive assembly 400 can be arranged between the running wheels 20 on the left and right sides.

[0033] Through the above technical solution, at least part of the structure of the suspension assembly 200 is arranged on the side of the two running wheels 20 away from each other, so that the layout space in the middle of the entire bogie can be increased for arranging the drive assembly 400. The drive assembly 400 can be set on the independently suspended bogie for driving, thereby increasing the driving power. Therefore, each bogie of the vehicle can be arranged into such an independent suspension, so that the driving power of each bogie is stronger, and there is no need to set up a non-independent bogie to set the drive assembly 400. In addition, the technical solution of configuring one drive assembly 400 for each bogie replaces the technical solution of configuring one drive assembly for multiple bogies, and multiple small drives can replace a large drive, saving maintenance costs. In addition, the increase in the space in the middle of the entire bogie can also make the maintenance space larger, and it is more convenient during maintenance.

[0034] Reference Figure 1The drive assembly 400 may include a drive motor 410, a drive shaft 420, a differential 430, and a transmission shaft 440. The drive motor 410 is connected to the differential 430 via the drive shaft 420. The differential 430 is connected to two transmission shafts 440. The two transmission shafts 440 are respectively hinged to the two running wheels 20. The drive motor 410 can provide driving power, which can be transmitted to the running wheels 20 via the drive shaft 420, the differential 430, and the transmission shaft 440. The transmission shaft 440 can be connected to the running wheels 20 via a universal joint 441. The universal joint 441 can realize rotation in three directions, including rotation and rotation in two directions up and down, so as to ensure that the up and down movement of the running wheels 20 does not affect the transmission of the drive motor 410.

[0035] In one embodiment of the present disclosure, the drive motor 410 can be installed on the vehicle body 10, so as to reduce the unsprung mass. In other embodiments, the installation position of the drive motor 410 can also be adjusted according to actual conditions, and the present disclosure does not limit this.

[0036] In the present disclosure, refer to Figure 4 , Figure 4 It shows Figure 1 In the right part of the middle bogie, the suspension assembly 200 includes a suspension 220 for connecting between the car body 10 and the running wheel 20. The suspension 220 can be arranged on the first side of the corresponding running wheel 20, that is, the right suspension 220 is arranged on the right side of the running wheel 20, and the left suspension 220 is arranged on the left side of the running wheel 20. On the one hand, the suspension 220 is arranged on the outside to increase the area between the running wheels 20. On the other hand, the lateral arrangement spacing of the suspensions 220 on both sides can be increased, so as to support the car body 10 at a position far away from each other, resulting in a larger support force span and a longer lever arm between the two. When driving on an uneven road, the support close to the outside can make the inclination angle of the car body 10 smaller, and the support of the car body 10 is more stable, thereby improving the anti-roll performance and load-bearing performance of the vehicle and ensuring the smoothness of the vehicle operation.

[0037] The suspension 220 may include at least one of a spring 221 and a shock absorber 222. To ensure that the vehicle can be quickly stabilized while reducing vibration, the suspension 220 may include both a spring 221 and a shock absorber 222. The spring 221 and the shock absorber 222 may be connected between the vehicle body 10 and the running wheel 20. The spring 221 may be an air spring to ensure riding comfort. The spring 221 and the shock absorber 222 may be arranged at intervals to ensure better stabilization effect. For example, the spring 221 may be arranged at the top close to the vehicle body 10 to attenuate the vibration of the vehicle body 10 and ensure riding comfort. The shock absorber 222 may be arranged below the spring 221 to further improve stability.

[0038] Reference Figure 4 The suspension assembly 200 may include a steering yoke 210, a first swing arm 240, and a second swing arm 250. The steering yoke 210 is used to be hinged to the running wheel 20, for example, hinged to the hub of the running wheel through a kingpin, and the suspension 220 may be connected to the running wheel 20 through the steering yoke 210; one end of the first swing arm 240 is hinged to the upper part of the steering yoke 210, and the other end is hinged to the vehicle body 10; one end of the second swing arm 250 is hinged to the lower part of the steering yoke 210, and the other end is hinged to the vehicle body 10. Figure 1 and Figure 2 , the vehicle is Figure 1 When the vehicle is running on a flat road, the running wheels 20 are in a stable state and no relative movement occurs; Figure 2 When the bogie is on an uneven road surface as shown in the figure, the running wheel 20 on the undulating side will be lifted or lowered along the undulation, the first swing arm 240 and the second swing arm 250 on this side will rotate relative to each other, and the spring 221 and the shock absorber 222 will be compressed or stretched, so that the movement of the running wheel 20 on this side does not affect the movement of the running wheel 20 on the other side, avoiding excessive side roll of the entire bogie, making the entire bogie more adaptable to the road surface and more stable when passing through the undulating track beam 22.

[0039] Among them, refer to Figure 4 There can be two first swing arms 240 and two second swing arms 250, and the two identical swing arms can be hinged at the same position. By setting two swing arms, the connection reliability between the bogie and the car body 10 can be guaranteed, the force transmission effect can be improved, and thus the bumps can be improved.

[0040] When the bogie has a steering yoke 210, a first swing arm 240 and a second swing arm 250, in one embodiment, the first swing arm 240 and the second swing arm 250 can be arranged on the first side of the corresponding running wheel 20, and the steering yoke 210 can be arranged on the side of the running wheel 20 opposite to the first side, and the steering yoke 210 can be extended from the side to the first side for connecting the first swing arm 240 and the second swing arm 250. Alternatively, in another embodiment, the steering yoke 210, the first swing arm 240 and the second swing arm 250 can all be arranged on the first side of the corresponding running wheel 20 to maximize the space between the running wheels 20 on both sides, so as to facilitate the arrangement of other structures.

[0041] Reference Figure 1 , the two sets of suspension components 200 can be installed on the vehicle body 10 through the mounting frame 100 respectively. In the embodiment of the present disclosure, the mounting frame 100 can be in various forms as long as it can install various components. Figure 6The mounting frame 100 may be constructed as a truss, that is, a plurality of rods connected together. The truss has high strength and light weight, and can reduce the unsprung mass compared to the axle method in the prior art. The mounting frame 100 may be provided with a spring mounting interface 2211, a shock absorber mounting interface 2221, a first swing arm mounting interface 241, and a second swing arm mounting interface 251.

[0042] In the disclosed embodiment, in order to establish a steering force relationship between two independent suspension components, refer to Figure 3 and Figure 5 The bogie may include a first steering arm 310, a second steering arm 320 and a first steering tie rod 330. The first steering arm 310 is used to connect between the running wheel 20 on the left and the guide wheel 30 on the left to establish force transmission between the running wheel 20 on the left and the guide wheel 30 on the left; the second steering arm 320 is used to connect between the running wheel 20 on the right and the guide wheel 30 on the right to establish force transmission between the running wheel 20 on the right and the guide wheel 30 on the right, and the guide wheel 30 can move along the guide beam 32; the first steering tie rod 330 is connected between the first steering arm 310 and the second steering arm 320 on the left and right to connect the left and right sides, so as to achieve the same steering angle of the running wheels 20 on the left and right sides. When the guide wheel 30 receives the external force of the guide beam 32 and turns, the running wheel 20 can be driven to rotate through a series of rod systems, thereby realizing the steering of the vehicle.

[0043] There are two first steering arms 310, which are arranged front to back and used to connect the two guide wheels 30 on the left side. There are two second steering arms 320, which are arranged front to back and used to connect the two guide wheels 30 on the right side. The bogie may also include a second steering rod 370 connected left to right between the first steering arm 310 and the second steering arm 320. The second steering rod 370 is spaced apart front to back from the first steering rod 330, and the second steering rod 370 is configured to be retractable left to right, so as to attenuate vibration during steering. For example, in one embodiment, an elastic member 371 may be connected to the middle of the second steering rod 370, and the second steering rod 370 is divided into two by the elastic member 371, so as to attenuate vibration by the elastic member 371. It should be noted here that in the embodiments of the present disclosure, all the connections between the steering rods and other structures are hinged, refer to Figure 3 The central axis of the articulation is the vertical direction of the vehicle, that is, perpendicular to Figure 6 Direction of drawing.

[0044] Reference Figure 5The bogie may include a steering knuckle 301 for articulating with the running wheel 20, a connecting piece 302 is connected to the bottom of the steering knuckle 301, and a first steering arm 310 and a second steering arm 320 are respectively connected to the bottom of the connecting piece 302 on the corresponding side. Figure 1 By providing the steering knuckle 301 and the connecting member 302 , the first steering arm 310 and the second steering arm 320 can be installed closer to the bottom, so that the upper space can be reserved for installing the driving assembly 400 .

[0045] Reference Figure 1 and Figure 5 In the disclosed embodiment, the steering knuckle 301 may be fixedly connected with an anti-rollover baffle 380, which is used to be arranged opposite to the track beam 22 to cooperate with the track beam 22 to prevent the vehicle from rolling over. In other embodiments, the anti-rollover baffle 380 may also be directly hinged on the wheel hub of the running wheel 20.

[0046] According to a second aspect of the embodiment of the present disclosure, a rail vehicle is provided, comprising a vehicle body 10 and the above-mentioned bogie, and having all the beneficial effects of the above-mentioned bogie, which will not be repeated here. The rail vehicle may include multiple bogies, and one or more of the multiple bogies may be set as the bogie in the embodiment of this disclosure.

[0047] According to a third aspect of the embodiment of the present disclosure, a rail transit system is provided, referring to Figure 1 The rail transit system may include a rail beam 22 and the above-mentioned rail vehicle, and has all the beneficial effects of the above-mentioned rail vehicle, which will not be repeated here.

[0048] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0050] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A bogie, characterized in that: include: Two sets of independent suspension components, the two sets of suspension components are respectively used to connect to the vehicle body and are used to connect to the running wheels on the left and right sides in a one-to-one correspondence; and The drive assembly is used to connect with the running wheels on the left and right sides. Wherein, at least a portion of each group of the suspension components is located on a first side of a corresponding running wheel, the first side is configured as a side of the corresponding running wheel away from another running wheel, and the drive component is arranged between the running wheels on the left and right sides.

2. The bogie according to claim 1, characterized in that: The driving assembly includes a driving motor, a driving shaft, a differential and a transmission shaft. The driving motor is connected to the differential via the driving shaft. The differential is connected to the two transmission shafts. The two transmission shafts are respectively hinged to the two running wheels.

3. The bogie according to claim 2, characterized in that: The driving motor is mounted on the vehicle body.

4. The bogie according to claim 1, characterized in that: The suspension assembly includes a suspension for connecting between the vehicle body and the running wheels, and the suspension is arranged on a first side of the corresponding running wheel.

5. The bogie according to claim 4, characterized in that: The suspension includes a spring, the spring is used to connect between the vehicle body and the running wheel, and / or The suspension includes a shock absorber, and the shock absorber is used to be connected between the vehicle body and the running wheels.

6. The bogie according to claim 4, characterized in that: The suspension assembly comprises: A steering yoke, used for being articulated with the running wheel, and the suspension is connected with the running wheel through the steering yoke; A first swing arm, one end of which is hinged to the upper part of the steering yoke, and the other end of which is hinged to the vehicle body; and The second swing arm has one end hinged to the lower part of the steering yoke and the other end hinged to the vehicle body.

7. The bogie according to claim 6, characterized in that The first swing arm and the second swing arm are arranged on the first side of the corresponding running wheel, or the steering yoke, the first swing arm and the second swing arm are all arranged on the first side of the corresponding running wheel.

8. The bogie according to claim 1, characterized in that: The two groups of suspension components are respectively mounted on the vehicle body through mounting frames, and the mounting frames are configured as trusses.

9. The bogie according to claim 1, characterized in that: The bogie comprises: A first steering arm is used to connect between the left running wheel and the left guide wheel; a second steering arm, used to be connected between the right running wheel and the right guide wheel; and The first steering tie rod is connected between the first steering arm and the second steering arm on the left and right sides.

10. The bogie according to claim 9, characterized in that The number of the first steering arms is two, which are used to connect the two guide wheels on the left side. The number of the second steering arms is two, which are used to connect the two guide wheels on the right side. The bogie also includes a second steering rod connected between the first steering arm and the second steering arm on the left and right sides. The second steering rod is spaced apart from the first steering rod in front and behind, and the second steering rod is configured to be telescopic left and right.

11. The bogie according to claim 9, characterized in that: The bogie comprises a steering knuckle for being articulated with a running wheel, a connecting piece is connected to the bottom of the steering knuckle, and the first steering arm and the second steering arm are respectively connected to the bottom of the connecting piece on the corresponding side.

12. The bogie according to claim 11, characterized in that An anti-rollover baffle is fixedly connected to the steering knuckle, and the anti-rollover baffle is used to be arranged opposite to the track beam.

13. A rail vehicle, characterized in that: The vehicle comprises a vehicle body and a bogie according to any one of claims 1-12.

14. A rail transit system, characterized in that: The invention comprises a track beam and a rail vehicle according to claim 13.

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