Air spring system and railway vehicle

Abstract

This application provides an air spring system, comprising: a first mounting portion and a second mounting portion, the first mounting portion being connected to the vehicle body and the second mounting portion being connected to the vehicle axle; a stop post, the stop post being fixedly connected to the first mounting portion; and an elastic bushing, the elastic bushing being fixedly connected to the second mounting portion. The elastic bushing is sleeved on the outer periphery of the stop post, and when the vehicle body and axle undergo lateral displacement, the stop post contacts the elastic bushing, causing the elastic bushing to elastically deform. This method improves the lateral stiffness of the air spring, enhancing the comfort and stability of the vehicle. This application also provides a rail vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to an air spring system and a rail vehicle. Background Technology

[0002] An air spring is a spring that is filled with air in a sealed container and uses the compressibility of gas to achieve its elasticity. It is a commonly used shock absorption device in rail vehicles.

[0003] In related technologies, air springs have relatively low lateral stiffness. When a vehicle is cornering or subjected to large lateral forces, the lateral displacement of the vehicle body relative to the axle is large, affecting the vehicle's stability and comfort. Utility Model Content

[0004] This application provides an air spring system to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, an air spring system is provided, comprising: a first mounting portion and a second mounting portion, wherein the first mounting portion is connected to the vehicle body of a vehicle, and the second mounting portion is connected to the vehicle axle.

[0006] A stop post, which is fixedly connected to the first mounting part;

[0007] An elastic bushing is fixedly connected to the second mounting portion;

[0008] The elastic bushing is sleeved on the outer periphery of the stop post. When the vehicle body and axle undergo lateral displacement, the stop post comes into contact with the elastic bushing, and the elastic bushing undergoes elastic deformation.

[0009] According to the above method, a stop post is provided in the first mounting part, and an elastic bushing is provided in the second mounting part. The elastic bushing is sleeved on the outer periphery of the stop post. When the vehicle body and axle undergo lateral displacement, the stop post contacts the elastic bushing, and the elastic bushing undergoes elastic deformation, thereby offsetting the lateral force, effectively improving the lateral stiffness of the air spring, and enhancing the comfort and stability of the vehicle.

[0010] Furthermore, an airbag is provided between the first mounting part and the second mounting part, and the stop post and the elastic bushing are disposed inside the airbag.

[0011] Furthermore, the elastic bushing is provided with a through hole, and a wear-resistant ring is provided on the inner circumference of the through hole, and the wear-resistant ring is sleeved on the outer circumference of the stop post.

[0012] Furthermore, the first end of the stop post is fixedly connected to the first mounting part, and a buffer block is provided at the second end of the stop post.

[0013] Furthermore, it also includes a stop plate, which is connected to the second mounting part through an elastic member. When the vehicle body and the axle undergo vertical displacement, causing the first mounting part and the second mounting part to approach each other, the buffer block contacts the stop plate, and the elastic member undergoes elastic deformation.

[0014] Furthermore, the elastic element is a spring.

[0015] Furthermore, the second mounting part is provided with a cylindrical chamber, which is adapted to accommodate and restrict the stop plate and the elastic element, and a wear-resistant layer is provided on the inner wall of the cylindrical chamber.

[0016] Furthermore, the thickness of the first edge of the airbag is greater than the thickness of the airbag wall. The first edge is the edge where the airbag connects to the first mounting part. The first mounting part includes a first airbag pressure plate and a top cover plate. The first airbag pressure plate is provided with a first groove, which is adapted to accommodate the first edge. The first airbag pressure plate and the top cover plate cooperate to fix the first edge of the airbag.

[0017] Furthermore, the airbag is connected to the vehicle's air supply system via an air channel, which includes a first channel located inside the upper cover and extending radially along the upper cover, a second channel located inside the first airbag pressure plate, and / or a third channel located inside the stop post.

[0018] Furthermore, the second edge of the airbag is bent inward, and the second edge is the edge connecting the airbag and the second mounting part. The second mounting part includes a second airbag pressure plate and a mounting platform. The width of the mounting platform is adapted to the width of the second edge of the airbag bent inward. The second airbag pressure plate is provided with a second groove, which is suitable for accommodating the second edge. The second airbag pressure plate and the mounting platform cooperate to fix the second edge of the airbag.

[0019] According to a second aspect of this application, a rail vehicle is provided, including the air spring system described in the first aspect, wherein a first mounting portion of the air spring system is connected to the body of the rail vehicle, a second mounting portion of the air spring system is connected to the axle of the rail vehicle, and an air passage of the air spring system is connected to the air supply system of the rail vehicle.

[0020] Furthermore, it includes two air spring systems, with the air inlets of the two air spring systems facing each other.

[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0024] Figure 1 This is a schematic diagram of a portion of the air spring system structure provided in an exemplary embodiment of this application;

[0025] Figure 2 This is a cross-sectional view of an air spring system provided in an exemplary embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the appearance of the air spring system provided in an exemplary embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the air spring system and axle connection provided in an exemplary embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] Air spring system; 20. Axle;

[0030] 100. First mounting section; 101. Stop post; 102. Air passage; 1021. First passage; 1022. Second passage; 1023. Third passage; 103. First airbag pressure plate; 104. Top cover plate; 105. Buffer block;

[0031] 200. Second mounting section; 201. Elastic bushing; 202. Wear-resistant ring; 203. Mounting platform; 204. Second airbag pressure plate; 205. Stop plate; 206. Elastic element; 207. Cylinder; 208. Wear-resistant layer;

[0032] 300, airbag; 301, first edge; 302, second edge. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0034] According to the first aspect of this application, referring to Figure 1 This application provides an air spring system, including: a first mounting part 100 and a second mounting part 200, wherein the first mounting part 100 is connected to the vehicle body and the second mounting part 200 is connected to the vehicle axle.

[0035] Stop post 101, the stop post 101 is fixedly connected to the first mounting part 100;

[0036] Elastic bushing 201, which is fixedly connected to the second mounting part 200;

[0037] The elastic bushing 201 is sleeved on the outer periphery of the stop post 101. When the vehicle body and axle undergo lateral displacement, the stop post 101 contacts the elastic bushing 201, and the elastic bushing 201 undergoes elastic deformation. Under the action of this elastic deformation, the lateral displacement between the stop post 101 and the elastic bushing 201 is suppressed, thereby suppressing the lateral displacement between the vehicle body and the axle. In some embodiments, the elastic bushing 201 is made of rubber and is fixed to the top end of the second mounting portion 200 by a vulcanization process.

[0038] In some embodiments, such as Figure 2 As shown, an airbag 300 is provided between the first mounting part 100 and the second mounting part 200, and the stop post 101 and the elastic bushing 201 are disposed inside the airbag 300.

[0039] In some embodiments, the first mounting portion 100 is provided with an air channel 102 through which gas enters and exits the airbag 300. The air channel 102 is provided in the first mounting portion 100 to prevent the air channel 102 from being exposed to the external environment and to effectively protect the air channel 102 from external forces.

[0040] In some embodiments, the stop post 101 is provided with an air passage 102 through which gas enters and exits the airbag 300. An air passage 102 is also provided inside the stop post 101 to ensure smooth airflow in all parts of the air spring system.

[0041] In some embodiments, the elastic bushing 201 is provided with a through hole, and a wear-resistant ring 202 is provided on the inner circumference of the through hole. The wear-resistant ring 202 is sleeved on the outer circumference of the stop post 101. The stop post 101 contacts and presses against the elastic bushing 201 through the wear-resistant ring 202, rather than directly contacting it, thereby increasing its wear life.

[0042] In some embodiments, the first end of the stop post 101 is fixedly connected to the first mounting portion 100, and the second end of the stop post 101 is provided with a buffer block 105. In some embodiments, the buffer block 105 is a rubber block.

[0043] In some embodiments, the air spring system provided by this utility model further includes a stop plate 205, which is connected to the second mounting portion 200 via an elastic element 206. When the vehicle body and axle undergo vertical displacement, causing the first mounting portion 100 and the second mounting portion 200 to approach each other, the buffer block 105 contacts the stop plate 205, and the elastic element 206 undergoes elastic deformation. In some embodiments, the elastic element 206 is a spring.

[0044] In some embodiments, when the vehicle is stationary, the distance between the buffer block 105 and the stop plate 205 is greater than the compression deformation of the air spring system under normal operating conditions. When the air spring system is operating normally, due to the poor damping effect of the elastic element 206, contact between the buffer block 105 and the stop plate 205 should be avoided as much as possible. When the air spring system experiences a deflation malfunction, or encounters extreme bumps, the buffer block 105 impacts and compresses the stop plate 205. The elastic deformation of the elastic element 206 mitigates the impact force, significantly reducing the impact vibration. Even when the air spring system deflates, the elastic element 206 still provides support to the vehicle body, and its damping effect is sufficient for the vehicle to reach the repair point.

[0045] In some embodiments, the second mounting portion 200 is provided with a chamber 207, which is adapted to accommodate and restrict the stop plate 205. A wear-resistant layer 208 is provided on the inner wall of the chamber 207. The wear-resistant layer 208 prevents wear on the inner wall of the chamber 207 when the stop plate 205 moves.

[0046] In some embodiments, the thickness of the first edge 301 of the airbag 300 is greater than the thickness of the airbag wall. The first edge 301 is the edge connecting the airbag 300 and the first mounting portion 100. The first mounting portion 100 includes a first airbag pressure plate 103 and a top cover plate 104. The first airbag pressure plate 103 is provided with a first groove adapted to accommodate the first edge 301. The first airbag pressure plate 103 and the top cover plate 104 cooperate to fix the first edge 301 of the airbag. Thus, the airbag 300 and the first mounting portion 100 are tightly connected.

[0047] In some embodiments, the airbag is connected to the vehicle’s air supply system via an air channel 102, the air channel 102 including a first channel 1021 located inside the upper cover 104 and extending radially along the upper cover 104, a second channel 1022 located inside the first airbag pressure plate 103 and / or a third channel 1023 located inside the stop post 101.

[0048] In some embodiments, the second edge 302 of the airbag 300 is bent inwards, and the second edge is the edge connecting the airbag 300 and the second mounting portion 200. The second mounting portion 200 includes a second airbag pressure plate 204 and a mounting platform 203. The width of the mounting platform 203 is adapted to the width of the inward bending of the second edge 302 of the airbag. The second airbag pressure plate 204 is provided with a second groove, which is adapted to accommodate the second edge 302. The second airbag pressure plate 204 and the mounting platform 203 cooperate to fix the second edge 302 of the airbag 300. Thus, the airbag 300 and the second mounting portion 200 are tightly connected.

[0049] The air spring system of this application embodiment will be described in detail below in conjunction with the vehicle's operating status.

[0050] When a vehicle encounters ordinary bumps or vertical forces while driving normally:

[0051] The vehicle body and axle undergo relative vertical displacement, compressing the air in the airbag 300 to provide shock absorption and improve vehicle comfort.

[0052] When a vehicle is cornering or subjected to lateral forces:

[0053] The vehicle body and axle experience relative lateral displacement, which in turn causes the stop post 101 and the elastic bushing 201 to also undergo lateral relative displacement. Since the elastic bushing 201 is fitted around the stop post 101, when the vehicle body and axle experience lateral displacement, the stop post 101 contacts the elastic bushing 201, causing the elastic bushing to elastically deform and restrict the lateral displacement of the stop post 101. This limits the lateral displacement between the vehicle body and axle, preventing significant vehicle swaying and improving vehicle stability and comfort.

[0054] When the air spring system experiences a loss of air pressure, or encounters extreme turbulence under special circumstances:

[0055] When the vehicle body collides with the axle, the buffer block 105 impacts and compresses the stop plate 205. The elastic deformation of the elastic element 206 reduces the impact force and significantly attenuates the impact vibration. Even when the air spring system deflates, the elastic element 206 still supports the vehicle body, and its shock-absorbing effect helps the vehicle reach the repair point.

[0056] Through the above methods, the air spring system of this application can improve lateral stiffness and enhance the comfort and stability of the vehicle.

[0057] According to the second aspect of this application, referring to Figure 4 This application provides a rail vehicle including the air spring system 10 described in the first aspect, wherein a first mounting part 100 of the air spring system is connected to the body of the rail vehicle, a second mounting part 200 of the air spring system 10 is connected to the axle 20 of the rail vehicle, and an air passage 102 of the air spring system 10 is connected to the air source system of the rail vehicle.

[0058] In some embodiments, the rail vehicle includes two air spring systems 10 with their air inlets facing each other.

[0059] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0060] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0061] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0062] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An air spring system, characterized by, include: A first mounting part and a second mounting part, wherein the first mounting part is connected to the vehicle body and the second mounting part is connected to the vehicle axle; A stop post, which is fixedly connected to the first mounting part; An elastic bushing is fixedly connected to the second mounting portion; The elastic bushing is sleeved on the outer periphery of the stop post. When the vehicle body and axle undergo lateral displacement, the stop post comes into contact with the elastic bushing, and the elastic bushing undergoes elastic deformation.

2. The air spring system of claim 1, wherein, An airbag is provided between the first mounting part and the second mounting part, and the stop post and the elastic bushing are disposed inside the airbag.

3. The air spring system of claim 1, wherein, The elastic bushing is provided with a through hole, and a wear-resistant ring is provided on the inner circumference of the through hole. The wear-resistant ring is sleeved on the outer circumference of the stop post.

4. The air spring system of claim 1, wherein, The first end of the stop post is fixedly connected to the first mounting part, and the second end of the stop post is provided with a buffer block.

5. The air spring system according to claim 4, characterized in that, It also includes a stop plate, which is connected to the second mounting part through an elastic element. When the vehicle body and the axle undergo vertical displacement, causing the first mounting part and the second mounting part to come close to each other, the buffer block contacts the stop plate, and the elastic element undergoes elastic deformation.

6. The air spring system according to claim 5, characterized in that, The elastic element is a spring.

7. The air spring system according to claim 5, characterized in that, When the vehicle is stationary, the distance between the buffer block and the stop plate is greater than the compression deformation of the air spring system under normal operating conditions.

8. The air spring system according to claim 5, characterized in that, The second mounting part is provided with a cylindrical chamber, which is adapted to accommodate and restrict the stop plate and the elastic element, and a wear-resistant layer is provided on the inner wall of the cylindrical chamber.

9. The air spring system according to claim 2, characterized in that, The thickness of the first edge of the airbag is greater than the thickness of the airbag wall. The first edge is the edge where the airbag connects to the first mounting part. The first mounting part includes a first airbag pressure plate and a top cover plate. The first airbag pressure plate is provided with a first groove, which is adapted to accommodate the first edge. The first airbag pressure plate and the top cover plate cooperate to fix the first edge of the airbag.

10. The air spring system according to claim 9, characterized in that, The airbag is connected to the vehicle's air supply system via an air channel, which includes a first channel located inside the upper cover and extending radially along the upper cover, a second channel located inside the first airbag pressure plate, and / or a third channel located inside the stop post.

11. The air spring system according to claim 2, characterized in that, The second edge of the airbag is bent inward, and the second edge is the edge connecting the airbag and the second mounting part. The second mounting part includes a second airbag pressure plate and a mounting platform. The width of the mounting platform is adapted to the width of the second edge of the airbag bent inward. The second airbag pressure plate is provided with a second groove, which is suitable for accommodating the second edge. The second airbag pressure plate and the mounting platform cooperate to fix the second edge of the airbag.

12. A rail vehicle, characterized in that, The system includes the air spring system according to any one of claims 1-11, wherein the first mounting part of the air spring system is connected to the body of the rail vehicle, the second mounting part of the air spring system is connected to the axle of the rail vehicle, and the air passage of the air spring system is connected to the air source system of the rail vehicle.

13. The rail vehicle according to claim 12, characterized in that, It includes two air spring systems, with the air inlets of the two air spring systems facing each other.

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