CN221113407U

CN221113407U - Torsion beam suspension and automobile

Info

Publication number: CN221113407U
Application number: CN202322579785.XU
Authority: CN
Inventors: 杨方; 侯建勇; 吴斌
Original assignee: Zhejiang Zero Run Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-06-11
Anticipated expiration: 2033-09-21

Abstract

The application relates to a torsion beam suspension and an automobile, wherein the torsion beam suspension comprises a torsion beam, a fixing frame and a vibration reduction unit, the fixing frame is used for being fixed on an automobile body, the vibration reduction unit comprises a vibration absorber and a spring, the vibration absorber and the spring are both arranged on the torsion beam, and one ends of the vibration absorber and the spring, which are far away from the torsion beam, are respectively connected with the fixing frame; the vibration damper and the spring can act on the fixing frame simultaneously under the drive of the torsion beam. According to the torsion beam suspension and the automobile, the damper and the spring are connected to the automobile body through the fixing frame, so that when the torsion beam is vibrated under the action of external force and drives the damper and the spring to vibrate together, the fixing frame can reduce the vibration frequency transmitted to the automobile body by the damper and the spring, and the comfort of a user when riding the automobile is improved.

Description

Torsion beam suspension and automobile

Technical Field

The application relates to the technical field of automobile suspensions, in particular to a torsion beam suspension and an automobile.

Background

The torsion beam suspension is a suspension system with simple structure, mature process and low cost, and is widely applied to the rear suspension structure of the entrance-level vehicle type.

In the prior art, a spring and a damper on a torsion beam suspension are respectively connected with a vehicle body, and when the torsion beam suspension is impacted by a road surface, external force is respectively transmitted to the vehicle body along the spring and the damper, and vibration isolation is carried out through rubber parts respectively arranged on the spring and the damper. However, after the torsion beam suspension is subjected to primary vibration by the arrangement mode of the springs and the vibration dampers, external force respectively vibrates the vehicle body along the springs and the vibration dampers for two times, vibration isolation effects are limited, and vibration is transmitted to the vehicle body through the vibration dampers and the springs, so that the comfort performance of the whole vehicle can be affected.

Disclosure of utility model

Accordingly, it is necessary to provide a torsion beam suspension and an automobile which can solve the above-mentioned problems.

In order to solve the technical problems, the application provides the following technical scheme:

A torsion beam suspension, the torsion beam suspension comprising:

A torsion beam;

A fixing frame for fixing to a vehicle body;

the vibration reduction unit comprises a vibration absorber and a spring, wherein the vibration absorber and the spring are both arranged on the torsion beam, and one ends of the vibration absorber and the spring, which are far away from the torsion beam, are respectively connected with the fixing frame;

the vibration damper and the spring can be simultaneously applied to the fixing frame under the drive of the torsion beam.

It can be understood that the shock absorber and the spring are connected to the car body through the fixing frame, so that when the torsion beam is vibrated under the action of external force and drives the shock absorber and the spring to vibrate together, the fixing frame can reduce the vibration frequency transmitted to the car body by the shock absorber and the spring, and the comfort of a user when riding the car is improved.

In one embodiment, the torsion beam suspension further includes a first bushing fixedly mounted to the mount, and the mount is connected to the damper through the first bushing.

It can be understood that the fixing frame is connected with the shock absorber through the first bushing, the first bushing can play a vibration isolation effect, the vibration of the vehicle body is reduced, and the comfort of the whole vehicle is improved.

In one embodiment, the first bushing comprises a first inner tube, a first rubber body and a first outer tube, wherein the first outer tube is sleeved on the first inner tube, and the first outer tube is connected with the first inner tube through the first rubber body;

The first outer tube is connected with the fixing frame, and the shock absorber is connected with the first inner tube.

In one embodiment, the torsion beam suspension further comprises a second bushing, and the second bushing is respectively connected with the fixing frame and the spring;

The second bushing is provided with a clamping part, and the spring is connected with the second bushing through the clamping part.

In one embodiment, the fixing frame is formed with a first mounting part, a second mounting part and a connecting part, the first mounting part and the second mounting part are arranged at intervals along the axial direction of the shock absorber, the connecting part extends along the axial direction of the shock absorber, and the connecting part is respectively connected with the first mounting part and the second mounting part;

Wherein, the shock absorber is installed in the first installation department, the spring is installed in the second installation department.

It is understood that the first mounting portion, the second mounting portion and the connecting portion are reasonably arranged on the fixing frame, so that the shape of the fixing frame can adapt to the mounting of the damper and the spring.

In one embodiment, the cross section of the connecting part is provided in a sector ring shape, and the shape of the connecting part is matched with the outer wall of the shock absorber.

It can be appreciated that the shape of the connecting portion is matched with the shock absorber, so that the shock absorber is not easy to collide with the connecting portion during movement.

In one embodiment, the fastening frame is provided as a forging or casting.

It can be understood that the fixing frame is set to be a forging piece or a casting piece, so that the rigidity of the fixing frame is high, the local rigidity of the mounting position is improved after the shock absorber and the spring are mounted on the vehicle body through the fixing frame, and the torsion of the whole vehicle and the dynamic rigidity improvement of the local mounting point are facilitated.

In one embodiment, the mount comprises a connection lug which abuts against the vehicle body and is fixedly connected to the vehicle body by a connection piece which can pass through the connection lug.

In one embodiment, the number of the connection lugs is set to one.

It can be understood that the quantity of the connecting lugs is set to be one, so that after external force is transmitted to the fixing frame from the shock absorber and the spring respectively, the external force is transmitted to the vehicle body through one connecting lug of the fixing frame, and the force transmission paths of the shock absorber and the spring are further combined into one, so that the shock absorption effect on the vehicle body is improved.

The application also provides the following technical scheme:

An automobile comprising a body and the torsion beam suspension as described above, the torsion beam suspension being connected to the body.

It can be understood that through the reasonable arrangement of the torsion beam suspension on the vehicle body, the vibration of the vehicle in the running process is reduced, and the riding comfort is improved.

Due to the application of the scheme, compared with the prior art, the application has the following advantages:

According to the torsion beam suspension and the automobile, the damper and the spring are connected to the automobile body through the fixing frame, so that when the torsion beam is vibrated under the action of external force and drives the damper and the spring to vibrate together, the fixing frame can reduce the vibration frequency transmitted to the automobile body by the damper and the spring, and the comfort of a user when riding the automobile is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a torsion beam suspension according to an embodiment of the present application;

FIG. 2 is an exploded view of a torsion beam suspension according to one embodiment of the present application;

FIG. 3 is a schematic view of a torsion beam according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a fixing frame according to an embodiment of the present application;

FIG. 5 is a schematic view of a first bushing according to an embodiment of the present application;

FIG. 6 is a schematic view of a second bushing according to an embodiment of the present application;

FIG. 7 is a schematic view illustrating a first bushing, a second bushing and a fixing frame according to an embodiment of the application;

FIG. 8 is a schematic view of a spring and spring spacer according to one embodiment of the present application;

FIG. 9 is a schematic diagram of a shock absorber according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a wheel according to an embodiment of the present application.

Reference numerals: 100. torsion beam suspension; 10. a torsion beam; 11. a first mounting hole; 12. a second mounting hole; 13. a third mounting hole; 20. a vibration damping unit; 21. a damper; 211. a first bushing; 2111. a first inner tube; 2112. a first rubber body; 2113. a first outer tube; 212. a first connecting rod; 213. a second connecting rod; 22. a spring; 221. a spring lower pad; 222. a second bushing; 2221. a second inner tube; 2222. a second rubber body; 2223. a second outer tube; 2224. a clamping part; 30. a fixing frame; 31. a first mounting portion; 32. a second mounting portion; 33. a connection part; 34. a connecting lug; 40. a wheel; 41. a brake.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a torsion beam suspension 100 according to an embodiment of the present application includes a torsion beam 10, a fixing frame 30, and a damper unit 20, wherein the fixing frame 30 is used for fixing to a vehicle body, the damper unit 20 includes a damper 21 and a spring 22, the damper 21 and the spring 22 are both mounted on the torsion beam 10, and ends of the damper 21 and the spring 22, which are far from the torsion beam 10, are respectively connected with the fixing frame 30. Wherein the damper 21 and the spring 22 can be simultaneously applied to the fixing frame 30 under the driving of the torsion beam 10. Thus, the damper 21 and the spring 22 are connected to the vehicle body through the fixing frame 30, and thus when the torsion beam 10 is vibrated by external force and drives the damper 21 and the spring 22 to vibrate together, the fixing frame 30 can reduce the vibration frequency of the damper 21 and the spring 22 transmitted to the vehicle body, and the comfort of a user in riding the vehicle is improved. And, at the time of installation, the damper 21 and the spring 22 are first installed on the mount 30, and then the mount 30 is directly installed to the vehicle body, so that the assembly between the damper unit 20 and the vehicle body is facilitated.

As shown in fig. 3, in an embodiment, the torsion beam 10 is provided with first mounting holes 11, and the first mounting holes 11 are provided at both ends of the torsion beam 10 for achieving connection between the torsion beam 10 and the vehicle body.

As shown in fig. 5 and 7, in an embodiment, the torsion beam suspension 100 further includes a first bushing 211, the first bushing 211 is fixedly mounted on the fixing frame 30, and the fixing frame 30 is connected with the shock absorber 21 through the first bushing 211, and the first bushing 211 can play a role in vibration isolation, reduce vibration of a vehicle body, and improve comfort of the whole vehicle.

As shown in fig. 9, in an embodiment, the damper 21 is a damper structure, the damper 21 is formed with a first connecting rod 212 extending along its axial direction, and the damper 21 is fixedly connected to the first bushing 211 through the first connecting rod 212. The first connecting rod 212 and the first bushing 211 may be specifically configured as a bolt connection or an interference fit. The damper 21 is formed with a second connecting rod 213 extending in a radial direction thereof, and the second connecting rod 213 is fixedly connected with the torsion beam 10, wherein the second connecting rod 213 and the torsion beam 10 may be specifically configured as a bolt connection or an interference fit.

As shown in fig. 5, in an embodiment, the first bushing 211 includes a first inner tube 2111, a first rubber body 2112 and a first outer tube 2113, the first outer tube 2113 is sleeved on the first inner tube 2111, the first outer tube 2113 is connected with the first inner tube 2111 through the first rubber body 2112, and the first rubber body 2112 is fixed with the first inner tube 2111 and the first outer tube 2113 through a vulcanization process, respectively.

Wherein, first outer tube 2113 is fixedly connected to mount 30, and shock absorber 21 passes through first inner tube 2111 and is fixedly connected to first inner tube 2111. The damper 21 and the first inner tube 2111 may be secured by an interference fit or threaded connection.

In the present embodiment, the first bush 211 is provided as a rubber bush. Without being limited thereto, in other embodiments, the first bushing 211 may also be provided as a hydraulic bushing.

As shown in fig. 3 and 8, the spring 22 has a coil spring structure and has a cushioning effect. The torsion beam 10 is further provided with a third mounting hole 13, a spring lower pad 221 is mounted in the third mounting hole 13, and the spring 22 is flexibly connected with the torsion beam 10 through the spring lower pad 221, so that abnormal sound is avoided.

As shown in fig. 6, in an embodiment, the torsion beam suspension 100 further includes a second bushing 222, the second bushing 222 includes a second inner tube 2221, a second rubber 2222, and a second outer tube 2223, and the second rubber 2222 is disposed between the second inner tube 2221 and the second outer tube 2223 and is fixed by a vulcanization process. And the second bushings 222 are connected to the fixing frame 30 through second outer tubes 2223 and to the springs 22 through second inner tubes 2221, respectively.

The second bushing 222 is provided with a clamping portion 2224, the clamping portion 2224 is located at one end of the second inner tube 2221 facing the spring 22, the clamping portion 2224 protrudes along the radial direction of the second inner tube 2221, and the spring 22 can be clamped with the clamping portion 2224, so that the spring 22 is connected with the second bushing 222.

In the present embodiment, the second bush 222 is provided as a rubber bush. Without limitation, in other embodiments, the second bushing 222 may also be configured as a hydraulic bushing.

In an embodiment, the fixing frame 30 is configured as a forging or casting, so that the rigidity of the fixing frame 30 is high, and after the shock absorber 21 and the spring 22 are mounted on the vehicle body through the fixing frame 30, that is, the shock absorbing unit 20 is connected together through the fixing frame 30, so that the mounting stability between the shock absorbing unit 20 and the vehicle body is improved, the mounting position is not easy to deform, the local rigidity is improved, and the whole vehicle torsion and the local mounting point dynamic rigidity are improved.

Specifically, the material of the fixing frame 30 may be forged steel, forged aluminum, cast steel, cast aluminum, or the like.

As shown in fig. 4, in an embodiment, a first mounting portion 31, a second mounting portion 32, and a connecting portion 33 are formed on a fixing frame 30, the first mounting portion 31 and the second mounting portion 32 are arranged at intervals in an axial direction of a damper 21, the connecting portion 33 extends in the axial direction of the damper 21, and the connecting portion 33 is connected with the first mounting portion 31 and the second mounting portion 32, respectively, and is reasonably arranged on the fixing frame 30 through the first mounting portion 31, the second mounting portion 32, and the connecting portion 33, so that the shape of the fixing frame 30 can accommodate the mounting of the damper 21 and the spring 22. The damper 21 is attached to the first attachment portion 31, and the spring 22 is attached to the second attachment portion 32.

Specifically, the first mounting portion 31 and the second mounting portion 32 are both in an annular structure, the first bushing 211 is fixed and pressed in the first mounting portion 31 in an interference fit manner, and the second bushing 222 is fixed and pressed in the second mounting portion 32 in an interference fit manner.

In other embodiments, the damper 21 may be directly and fixedly connected to the first mounting portion 31, and the spring 22 may be directly and fixedly connected to the second mounting portion 32. The shape of the first mounting portion 31 or the second mounting portion 32 may also be provided in a cylindrical or plate-like structure as long as the mounting of the damper 21 or the spring 22 can be accommodated.

Further, the cross section of the connecting portion 33 is in a sector ring shape, and the shape of the connecting portion 33 is matched with that of the shock absorber 21, so that the shock absorber 21 and the connecting portion 33 are prevented from interfering as much as possible, and the shock absorber 21 is not easy to collide with the connecting portion 33 when moving.

In one embodiment, the fixing frame 30 includes a connection lug 34, the connection lug 34 is disposed at one side of the first mounting portion 31 and extends in a radial direction of the first mounting portion 31, and the connection lug 34 can be abutted to the vehicle body and fixedly connected to the vehicle body with a connection member (not shown) passing through the connection lug 34. The connection elements may in particular be provided as bolts, screws or rivets or the like.

Preferably, the number of the connecting lugs 34 is set to be one, so that when the external force is transmitted to the fixing frame 30 from the shock absorber 21 and the spring 22 respectively, the external force is transmitted to the vehicle body through one connecting lug 34 of the fixing frame 30, and the force transmission paths of the shock absorber 21 and the spring 22 are further integrated, so that the shock absorption effect on the vehicle body is improved.

Not limited to this, in other embodiments, the number of the connection lugs 34 may be set to be plural, and the plural connection lugs 34 may be arranged on the circumferential sides of both the first mounting portion 31 and the second mounting portion 32, or may be arranged only on the first mounting portion 31, or may be arranged only on the second mounting portion 32. The number of the connecting lugs 34 may be two, three, four, etc., and may be selected according to practical situations.

The present application also provides an automobile (not shown) comprising a vehicle body and a torsion beam suspension 100 as described above, the torsion beam suspension 100 being attached to the vehicle body. By reasonable arrangement of the torsion beam suspension 100 on the vehicle body, vibration of the vehicle during running is reduced, and riding comfort is improved.

As shown in fig. 3 and 10, the vehicle further includes wheels 40, and the torsion beam 10 is further provided with second mounting holes 12, and the second mounting holes 12 are located at both sides of the torsion beam 10 for mounting the wheels 40. The brake 41 is disposed on the wheel 40, and the wheel 40 and the brake 41 are both of a conventional structure in the prior art, and will not be described herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims

1. A torsion beam suspension characterized in that the torsion beam suspension (100) includes:

A torsion beam (10);

A fixing frame (30) for fixing to a vehicle body;

the vibration reduction unit (20) comprises a vibration reduction device (21) and a spring (22), wherein the vibration reduction device (21) and the spring (22) are both arranged on the torsion beam (10), and one ends, far away from the torsion beam (10), of the vibration reduction device (21) and the spring (22) are respectively connected with the fixing frame (30);

wherein the damper (21) and the spring (22) can act on the fixing frame (30) simultaneously under the drive of the torsion beam (10).

2. Torsion beam suspension according to claim 1, characterized in that the torsion beam suspension (100) further comprises a first bushing (211), the first bushing (211) being fixedly mounted to the mount (30), and the mount (30) being connected to the damper (21) via the first bushing (211).

3. The torsion beam suspension according to claim 2, wherein the first bushing (211) includes a first inner tube (2111), a first rubber body (2112) and a first outer tube (2113), the first outer tube (2113) is sleeved on the first inner tube (2111), and the first outer tube (2113) and the first inner tube (2111) are connected through the first rubber body (2112);

Wherein the first outer tube (2113) is connected to the mount (30), and the damper (21) is connected to the first inner tube (2111).

4. The torsion beam suspension according to claim 1, wherein the torsion beam suspension (100) further includes a second bushing (222), the second bushing (222) being connected with the mount (30) and the spring (22), respectively;

The second bushing (222) is provided with a clamping portion (2224), and the spring (22) is connected with the second bushing (222) through the clamping portion (2224).

5. Torsion beam suspension according to claim 1, characterized in that the mount (30) is formed with a first mounting portion (31), a second mounting portion (32) and a connecting portion (33), the first mounting portion (31) being arranged at intervals from the second mounting portion (32) in the axial direction of the damper (21), the connecting portion (33) extending in the axial direction of the damper (21), and the connecting portion (33) being connected to the first mounting portion (31) and the second mounting portion (32), respectively;

Wherein the damper (21) is mounted on the first mounting portion (31), and the spring (22) is mounted on the second mounting portion (32).

6. Torsion beam suspension according to claim 5, characterized in that the cross section of the connection part (33) is arranged in the shape of a sector ring and that the shape of the connection part (33) is arranged to match the outer wall of the damper (21).

7. Torsion beam suspension according to claim 1, characterized in that the mount (30) is provided as a forging or casting.

8. Torsion beam suspension according to claim 1, characterized in that the mount (30) comprises a connection lug (34), which connection lug (34) abuts against the vehicle body and is fixedly connected to the vehicle body with a connection piece which can pass through the connection lug (34).

9. Torsion beam suspension according to claim 8, characterized in that the number of connecting lugs (34) is set to one.

10. An automobile comprising a vehicle body and a torsion beam suspension (100) according to any one of claims 1 to 9, the torsion beam suspension (100) being connected to the vehicle body.