Torsion beam structure and vehicle

Abstract

The utility model discloses a torsion beam structure and a vehicle. The torsion beam structure comprises a torsion beam body and an installation assembly. A mounting inclined plane is arranged on the torsion beam body; the mounting assembly comprises a first mounting plate connected with a wheel bearing and a brake, and a second mounting plate fixedly mounted on the mounting slope; a connecting shaft perpendicular to the mounting slope is arranged on the first end face of the second mounting plate in a protruding mode, the first mounting plate is rotationally mounted on the connecting shaft, and a first preset inclined included angle is formed between the connecting shaft and the central axis of the wheel bearing. According to the utility model, a stable driving track can be kept in the turning process of the vehicle, and the driving stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a torsion beam structure and a vehicle. Background Art

[0002] The wheels of a vehicle are connected to the body through a suspension. As a non-independent suspension, a torsion beam suspension ensures precise wheel guidance and is lightweight. Currently, some vehicles use a torsion beam rear suspension. This solution has drawbacks: the crossbeam of a torsion beam rear suspension has a certain degree of flexibility, resulting in negative toe during braking. This creates a greater vertical force on the outer wheels during cornering, resulting in a correspondingly greater lateral force. When the lateral forces of the left and right wheels combine, the resultant force is directed toward the outside of the curve. This reduces the vehicle's understeer gradient, thereby reducing driving stability. Summary of the Invention

[0003] The embodiments of the present utility model provide a torsion beam structure and a vehicle to solve the technical problem in the prior art that the torsion beam structure is difficult to ensure the driving stability of the vehicle.

[0004] The present invention provides a torsion beam structure, comprising a torsion beam body and a mounting assembly; the torsion beam body is provided with a mounting bevel; the mounting assembly comprises a first mounting plate connected to a wheel bearing and a brake, and a second mounting plate fixedly mounted on the mounting bevel;

[0005] A connecting shaft perpendicular to the mounting slope is protruded from the first end surface of the second mounting plate away from the torsion beam body, and the first mounting plate is rotatably mounted on the connecting shaft, and the connecting shaft is arranged at a first preset inclination angle with the central axis of the wheel bearing.

[0006] Optionally, a mounting hole adapted to the connecting shaft is provided on the second end surface of the first mounting plate facing the second mounting plate; the first mounting plate is rotatably mounted on the connecting shaft through the mounting hole;

[0007] The mounting assembly further includes an elastic constraint member connected between the first end surface and the second end surface.

[0008] Optionally, a boss is provided on the second end face of the first mounting plate, and the mounting hole is recessed and formed on the end face of the boss facing the second mounting plate; the thickness of the elastic restraint is greater than the protruding height of the boss on the second end face.

[0009] Optionally, the first end surface and the second end surface are both arranged parallel to the mounting inclined surface.

[0010] Optionally, a third end face connected to the wheel bearing is provided on the end face of the first mounting plate away from the second mounting plate, and a fourth end face connected to the mounting bevel is provided on the end face of the second mounting plate away from the first mounting plate; the third end face and the fourth end face are arranged at a first preset inclination angle.

[0011] Optionally, the torsion beam body further includes a crossbeam, a longitudinal beam connected to the crossbeam, and a mounting panel connected to the longitudinal beam, and the mounting slope is provided on an end surface of the mounting panel away from the crossbeam.

[0012] Optionally, the torsion beam structure further includes a shaft sleeve connected to the longitudinal beam, the longitudinal beam is connected to the vehicle body via the shaft sleeve, and the shaft sleeve and the mounting panel are arranged at opposite ends of the longitudinal beam.

[0013] Optionally, the torsion beam structure further includes a mounting bracket, and the mounting panel is mounted on the longitudinal beam via the mounting bracket.

[0014] Optionally, the mounting bracket includes a first supporting side plate, a second supporting side plate and an intermediate connecting plate, all of which are connected to the longitudinal beam, the intermediate connecting plate is connected between the first supporting side plate and the second supporting side plate, and the mounting panel is fixedly mounted on the intermediate connecting plate; the intermediate connecting plate is arranged parallel to the mounting bevel.

[0015] The utility model also provides a vehicle, comprising the above-mentioned torsion beam structure.

[0016] In the present utility model, the torsion beam structure includes a torsion beam body and a mounting assembly; the torsion beam body is provided with a mounting bevel; the mounting assembly includes a first mounting plate connecting the wheel bearing and the brake, and a second mounting plate fixedly mounted on the mounting bevel; the second mounting plate is provided with a connecting shaft protruding from the first end face of the torsion beam body and perpendicular to the mounting bevel, the first mounting plate is rotatably mounted on the connecting shaft, and the connecting shaft is arranged at a first preset inclination angle with the central axis of the wheel bearing.

[0017] In the present invention, a first mounting plate of the mounting assembly is connected to a wheel bearing and a brake, and a second mounting plate is fixedly mounted on an inclined mounting surface of a torsion beam body. The first mounting plate is rotatably connected to the second mounting plate via a connecting shaft, and the inclined mounting surface is obliquely mounted on the torsion beam body and is arranged at a second preset inclined angle with respect to a longitudinal extension direction of the torsion beam body, wherein the sum of the second preset inclined angle and the first preset inclined angle is equal to 90 degrees. Thus, during normal driving and braking of the vehicle or during cornering braking, a longitudinal force generated at the contact point of the wheel assembly with the ground causes the wheel assembly to be subjected to a counterclockwise torque. This torque is transmitted to the first mounting plate of the mounting assembly via the wheel bearing and the brake, thereby driving the first mounting plate to rotate a certain angle about the connecting shaft, thereby adjusting the toe angles of the two rear wheel assemblies from negative toe to positive toe. At this time, the resultant lateral forces of the wheel assemblies on both sides of the rear wheels are directed toward the inside of the curve, thereby increasing the understeer gradient of the entire vehicle, helping the vehicle maintain a stable driving trajectory during cornering, and improving driving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic structural diagram of a torsion beam structure in one embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of a torsion beam structure in another embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of a mounting assembly of a torsion beam structure in another embodiment of the present invention;

[0022] Figure 4 This is a structural diagram of a torsion beam structure in another embodiment of the present invention;

[0023] Figure 5 This is a structural schematic diagram showing the comparison of changes in toe angles of two rear wheels when a vehicle is braking in one embodiment of the present invention;

[0024] The reference numerals in the specification are as follows:

[0025] 1-torsion beam body, 11-mounting slope, 12-cross beam, 13-longitudinal beam, 14-mounting panel, 2-mounting assembly, 21-first mounting plate, 211-second end face, 212-mounting hole, 213-boss, 214-third end face, 22-second mounting plate, 221-first end face, 222-connecting shaft, 223-fourth end face, 23-elastic constraint, 3-brake, 4-wheel bearing, 5-axle sleeve, 6-mounting bracket, 61-first support side plate, 62-second support side plate, 63-middle connecting plate, 7-wheel assembly. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] like Figures 1 to 4As shown, an embodiment of the present invention provides a torsion beam structure, including a torsion beam body 1 and a mounting assembly 2; the torsion beam body 1 is provided with a mounting bevel 11; the mounting assembly 2 includes a first mounting plate 21 connecting the wheel bearing 4 and the brake 3, and a second mounting plate 22 fixedly mounted on the mounting bevel 11; the second mounting plate 22 is provided with a connecting shaft 222 protruding from the first end face 221 of the torsion beam body 1 and perpendicular to the mounting bevel 11, the first mounting plate 21 is rotatably mounted on the connecting shaft 222, and the connecting shaft 222 is arranged at a first preset inclination angle with the central axis of the wheel bearing 4.

[0030] Among them, the mounting assembly 2 includes a first mounting plate 21 and a second mounting plate 22, the second mounting plate 22 is fixedly mounted on the mounting bevel 11 of the torsion beam body 1, the first mounting plate 21 connects the wheel bearing 4 and the brake 3, the first end face 221 of the second mounting plate 22 is away from the torsion beam body 1, and a connecting shaft 222 perpendicular to the mounting bevel 11 is provided on the first end face 221, and the first mounting plate 21 is rotatably mounted on the connecting shaft 222; the axis of the connecting shaft 222 is set at a first preset inclination angle with the central axis of the wheel bearing 4.

[0031] Furthermore, since the vehicle's wheel assembly 7 needs to be installed on the end face of the first mounting plate 21 away from the second mounting plate 22 (that is, the third end face 214 mentioned later) through the wheel bearing 4, the center axis of the wheel assembly 7 needs to coincide with the center axis of the wheel bearing 4; and the wheel assembly 7 needs to be parallel to the ground on which the vehicle is placed. Assuming that the vehicle is placed on a horizontal plane, at this time, the end face of the first mounting plate 21 away from the second mounting plate 22 needs to be perpendicular to the horizontal plane, so that after the wheel assembly 7 is installed on the end face of the first mounting plate 21 away from the second mounting plate 22 through the wheel bearing 4, the center axis of the vehicle bearing 4 is parallel to the horizontal plane, thereby allowing the wheel assembly 7 to rotate normally to drive the vehicle.

[0032] Because the axis of connecting shaft 222 is disposed at a first predetermined angle to the central axis of wheel bearing 4, the angle between the axis of connecting shaft 222 and the horizontal plane is also equal to the first predetermined angle. Furthermore, because the axis of connecting shaft 222 is perpendicular to inclined mounting surface 11, inclined mounting surface 11 and the end surface of first mounting plate 21 facing away from second mounting plate 22 also form the first predetermined angle.

[0033] It can be understood that since the mounting bevel 11 is obliquely arranged on the torsion beam body 1, and the length extension direction of the torsion beam body 1 must be parallel to the central axis of the wheel assembly 7, the mounting bevel 111 is arranged at a second preset inclination angle with the length extension direction of the torsion beam body 1, and the sum of the second preset inclination angle and the first preset inclination angle is equal to 90 degrees.

[0034] In the above-described embodiment of the present invention, when the longitudinal force generated at the contact point of the wheel assembly 7 with the ground causes the wheel assembly 7 to be subjected to a counterclockwise torque, this torque is transmitted through the wheel bearing 4 and the brake 3 to the first mounting plate 21 of the mounting assembly 2, thereby driving the first mounting plate 21 to rotate a certain angle about the connecting axis 222. Because the mounting inclined surface 11 is arranged at a second predetermined angle with the longitudinal extension direction of the torsion beam body 1, the rotation of the first mounting plate 21 about the connecting axis 222 drives the wheel bearing 4 and the brake 3 to rotate synchronously, thereby adjusting the rotation angle of the wheel assembly 7 connected to the wheel bearing 4 and the brake 3 (generating a certain rotation angle of the wheel assembly 7 relative to the vehicle body), thereby driving the toe angle of the wheel assembly 7 to change. The first predetermined angle can be set as required, and can be set according to the desired improvement in vehicle braking stability. The larger the first predetermined angle, the wider the adjustable range of the toe angle of the wheel assembly 7. For example, the first predetermined angle can be set between 2° and 30°.

[0035] like Figure 5 As shown, when a vehicle brakes in a curve, the braking force causes the torsion beam's crossmember to deform due to its flexibility, resulting in negative wheel toe (the front end of the wheel assembly 7 deflects outward relative to the vehicle centerline, i.e., the wheel assembly 7 forms an outward toe shape). Centrifugal force increases the vertical force on the wheel assembly 7 located on the outside of the curve, and the lateral force generated at the same toe angle is also greater. At this point, the resultant force on both sides of the rear wheels points outward of the curve. This reduces the vehicle's understeer gradient and reduces driving stability. At this time, when the vehicle brakes during a turn, the longitudinal force generated by the contact point of the wheel assembly 7 with the ground causes the wheel assembly 7 to be subjected to a counterclockwise torque, which is transmitted to the first mounting plate 21 of the mounting assembly 2 through the wheel bearing 4 and the brake 3, driving the first mounting plate 21 to rotate a certain angle around the connecting shaft 222, thereby driving the wheel assembly 7 to rotate in the opposite direction of the negative toe state relative to the vehicle body, and then the two rear wheel assemblies 7 are adjusted from negative toe to positive toe (the front end of the wheel assembly 7 is deflected inward relative to the center line of the vehicle, that is, the wheel assembly 7 presents an inward-facing eight-shaped shape); when the wheel assembly 7 generates positive toe, the resultant lateral force of the wheel assemblies 7 on both sides of the rear wheels will point to the inside of the curve, thereby increasing the understeer gradient of the entire vehicle, helping the vehicle to maintain a stable driving trajectory during a turn and improving driving stability.

[0036] In the present invention, the first mounting plate 21 of the mounting assembly 2 is connected to the wheel bearing 4 and the brake 3, and the second mounting plate 22 is fixedly mounted on the mounting bevel 11 of the torsion beam body 1. The first mounting plate 21 is rotatably connected to the second mounting plate 22 via a connecting shaft 222, and the mounting bevel 11 is obliquely mounted on the torsion beam body 1 and is set at a second preset oblique angle with the length extension direction of the torsion beam body 1. The sum of the second preset oblique angle and the first preset oblique angle is equal to 90 degrees. In this way, when the vehicle is braking normally during driving or braking in a curve, the contact between the wheel assembly 7 and the ground is The longitudinal force generated by the point causes the wheel assembly 7 to be subjected to a counterclockwise torque, which is transmitted to the first mounting plate 21 of the mounting assembly 2 through the wheel bearing 4 and the brake 3, driving the first mounting plate 21 to rotate a certain angle around the connecting shaft 222, thereby adjusting the toe angles of the two rear wheel assemblies 7, so that the wheel assembly 7 is adjusted from negative toe to positive toe. At this time, the resultant lateral forces of the wheel assemblies 7 on both sides of the rear row will point to the inside of the curve, thereby increasing the understeer gradient of the entire vehicle, helping the vehicle to maintain a stable driving trajectory during cornering and improving driving stability.

[0037] In one embodiment, if Figures 2 to 3 As shown, a mounting hole 212 adapted to the connecting shaft 222 is provided on the second end face 211 of the first mounting plate 21 facing the second mounting plate 22; the first mounting plate 21 is rotatably mounted on the connecting shaft 222 through the mounting hole 212; the mounting assembly 2 also includes an elastic constraint 23, which is connected between the first end face 221 and the second end face 211. It can be understood that the second end face 211 of the first mounting plate 21 is set toward the second mounting plate 22, and a mounting hole 212 is set on the second end face 211. The first mounting plate 21 is rotatably mounted on the connecting shaft 222 through the mounting hole 212. An elastic constraint 23 is installed between the first end face 221 and the second end face 211. The elastic constraint 23 can be connected between the first end face 221 and the second end face 211 by rubber vulcanization. The elastic constraint 23 can constrain the freedom of rotation and translation of the first mounting plate 21 on the connecting shaft 222, so that the angle of rotation of the first mounting plate 21 around the connecting shaft 222 is within a preset range to adapt to the changing requirements of the toe angle.

[0038] In one embodiment, if Figures 2 to 3As shown, a boss 213 is provided on the second end face 211 of the first mounting plate 21, and the mounting hole 212 is recessed and formed on the end face of the boss 213 facing the second mounting plate 22; the thickness of the elastic constraint 23 is greater than the protruding height of the boss 213 on the second end face 211. It can be understood that a boss 213 is provided on the second end face 211 of the first mounting plate 21, and a mounting hole 212 is opened on the end face of the boss 213 facing the second mounting plate 22. The mounting hole 212 is a blind hole, and the connecting shaft 222 is inserted into the mounting hole 212. The thickness of the elastic constraint 23 is greater than the protruding height of the boss 213 on the second end face 211. In this way, when the connecting shaft 222 is rotated and inserted into the mounting hole 212, and the elastic constraint 23 is connected between the first end face 221 and the second end face 211, a space is formed between the boss 213 and the first end face 221 of the second mounting plate 22, thereby preventing hard interference between the first mounting plate 21 and the second mounting plate 22 when the first mounting plate 21 rotates around the connecting shaft 222.

[0039] In one embodiment, if Figures 2 to 3 As shown, the first end surface 221 and the second end surface 211 are both arranged parallel to the mounting bevel 11. It is understandable that the first end surface 221 and the second end surface 211 are both arranged parallel to the mounting bevel 11. When the first mounting plate 21 rotates relative to the second mounting plate 22 about the connecting axis 222, the elastic constraint 23 located between the first end surface 221 and the second end surface 211 can be uniformly stressed, thereby improving the structural stability and reliability of the mounting assembly 2.

[0040] In one embodiment, if Figures 2 to 3 As shown, a third end surface 214 connected to the wheel bearing 4 is provided on the end surface of the first mounting plate 21 away from the second mounting plate 22, and a fourth end surface 223 is provided on the end surface of the second mounting plate 22 away from the first mounting plate 21, which is in contact with the mounting bevel 11. The third end surface 214 and the fourth end surface 223 are arranged at a first predetermined tilt angle. It is understood that the angle between the third end surface 214 and the fourth end surface 223 is equal to the angle between the connecting shaft 222 and the central axis of the wheel bearing 4, both being the first predetermined tilt angle. The sum of the second predetermined tilt angle and the first predetermined tilt angle is equal to 90 degrees. Therefore, the magnitude of the first predetermined tilt angle varies with the second predetermined tilt angle, thereby driving the wheel assembly 7 to rotate in the desired direction, accurately controlling the toe angle of the wheel assembly 7, ensuring that the wheel assembly 7 maintains correct positioning during driving, and thus improving the vehicle's handling performance and driving stability.

[0041] In one embodiment, if Figures 1 to 2As shown, the torsion beam body 1 further comprises a crossbeam 12, a longitudinal beam 13 connecting the crossbeam 12, and a mounting panel 14 connecting the longitudinal beam 13. The mounting bevel 11 is disposed on the end surface of the mounting panel 14 away from the crossbeam 12. It is understood that the torsion beam body 1 is composed of the crossbeam 12, the longitudinal beam 13 connecting the crossbeam 12, and the mounting panel 14 connecting the longitudinal beam 13. The mounting panel 14 is mounted on the longitudinal beam 13, and the mounting bevel 11 is disposed on the mounting panel 14. It is understood that in this embodiment, the longitudinal beam 13 is perpendicular to the crossbeam 12, and the extension direction of the crossbeam 12 is the longitudinal extension direction of the torsion beam body 1. Therefore, since the mounting bevel 11 is disposed at a second predetermined angle to the longitudinal extension direction of the torsion beam body 1, the mounting bevel 11 is disposed at a first predetermined angle to the longitudinal beam 13. In this embodiment, the addition of the mounting panel 14 between the mounting assembly 2 and the longitudinal beam 13 can enhance the connection stability between the mounting assembly 2 and the longitudinal beam 13.

[0042] In one embodiment, if Figures 1 to 2 As shown, the torsion beam structure further includes a sleeve 5 connected to the longitudinal beam 13. The longitudinal beam 13 is connected to the vehicle body via the sleeve 5. The sleeve 5 and the mounting panel 14 are disposed at opposite ends of the longitudinal beam 13. It is understood that the sleeve 5 is used to connect the longitudinal beam 13 to the vehicle body and is responsible for primarily transmitting force between the vehicle body and the wheel assembly 7. The mounting panel 14 is disposed at the other end of the longitudinal beam 13 away from the sleeve 5 and is used to mount and connect the mounting assembly 2. The placement of the sleeve 5 and mounting panel 14 at each end of the longitudinal beam 13 effectively disperses the forces from the wheel assembly 7 and the vehicle body, reducing local stress concentration and improving the durability and reliability of the overall structure. It also helps to fully utilize space, avoid interference between different components, and ensure the compactness and efficiency of the suspension system.

[0043] In one embodiment, if Figure 1 、 Figure 2 and Figure 4 As shown, the torsion beam structure further includes a mounting bracket 6, through which the mounting panel 14 is mounted on the longitudinal beam 13. As can be appreciated, mounting the mounting panel 14 on the longitudinal beam 13 via the mounting bracket 6 provides a stable support platform for the mounting panel 14, ensuring proper positioning and stable installation of the mounting panel 14 on the longitudinal beam 13. When force from the wheel assembly 7, transmitted via the suspension, acts on the torsion beam body 1, the mounting bracket 6 helps disperse stress, preventing stress concentration from damaging the mounting panel 14 or the longitudinal beam 13.

[0044] In one embodiment, if Figure 1As shown, the mounting bracket 6 includes a first supporting side plate 61, a second supporting side plate 62, and an intermediate connecting plate 63, each connected to the longitudinal beam 13. The intermediate connecting plate 63 is connected between the first supporting side plate 61 and the second supporting side plate 62, and the mounting panel 14 is fixedly mounted on the intermediate connecting plate 63; the intermediate connecting plate 63 is arranged parallel to the mounting inclined surface 11. It can be understood that the first supporting side plate 61 and the second supporting side plate 62 are mounted on the longitudinal beam 13, the intermediate connecting plate 63 is connected between the first supporting side plate 61 and the second supporting side plate 62, and the mounting panel 14 is fixedly mounted on the intermediate connecting plate 63, further improving the mounting security of the mounting panel 14.

[0045] The present invention further provides a vehicle comprising the aforementioned torsion beam structure. In the vehicle of the aforementioned embodiment of the present invention, the torsion beam structure comprises a torsion beam body 1 and a mounting assembly 2; the torsion beam body 1 is provided with an inclined mounting surface 11; the mounting assembly 2 comprises a first mounting plate 21 connecting the wheel bearing 4 and the brake 3, and a second mounting plate 22 fixedly mounted on the inclined mounting surface 11; the second mounting plate 22 has a connecting shaft 222 protruding from a first end surface 221 facing away from the torsion beam body 1 and perpendicular to the inclined mounting surface 11; the first mounting plate 21 is rotatably mounted on the connecting shaft 222, and the connecting shaft 222 is arranged at a first predetermined angle relative to the central axis of the wheel bearing 4.

[0046] In the vehicle of the above embodiment of the present invention, the first mounting plate 21 of the mounting assembly 2 is connected to the wheel bearing 4 and the brake 3, the second mounting plate 22 is fixedly mounted on the mounting bevel 11 of the torsion beam body 1, the first mounting plate 21 is rotatably connected to the second mounting plate 22 by the connecting shaft 222, and the mounting bevel 11 is obliquely mounted on the torsion beam body 1 and is set at a second preset oblique angle with the length extension direction of the torsion beam body 1, and the sum of the second preset oblique angle and the first preset oblique angle is equal to 90 degrees; in this way, when the vehicle brakes in a curve, the contact between the wheel assembly 7 and the ground is The longitudinal force generated by the point causes the wheel assembly 7 to be subjected to a counterclockwise torque, which is transmitted to the first mounting plate 21 of the mounting assembly 2 through the wheel bearing 4 and the brake 3, driving the first mounting plate 21 to rotate a certain angle around the connecting shaft 222, thereby adjusting the toe angles of the two rear wheel assemblies 7, so that the wheel assembly 7 is adjusted from negative toe to positive toe. At this time, the resultant lateral forces of the wheel assemblies 7 on both sides of the rear row will point to the inside of the curve, thereby increasing the understeer gradient of the entire vehicle, helping the vehicle to maintain a stable driving trajectory during cornering and improving driving stability.

[0047] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A torsion beam structure, characterized in that: The invention comprises a torsion beam body and a mounting assembly; the torsion beam body is provided with a mounting bevel; the mounting assembly comprises a first mounting plate connected to the wheel bearing and the brake, and a second mounting plate fixedly mounted on the mounting bevel; A connecting shaft perpendicular to the mounting slope is protruded from the first end surface of the second mounting plate away from the torsion beam body, and the first mounting plate is rotatably mounted on the connecting shaft, and the connecting shaft is arranged at a first preset inclination angle with the central axis of the wheel bearing.

2. The torsion beam structure according to claim 1, characterized in that: A mounting hole adapted to the connecting shaft is provided on the second end surface of the first mounting plate facing the second mounting plate; the first mounting plate is rotatably mounted on the connecting shaft through the mounting hole; The mounting assembly further includes an elastic constraint member connected between the first end surface and the second end surface.

3. The torsion beam structure according to claim 2, characterized in that: A boss is provided on the second end face of the first mounting plate, and the mounting hole is recessed and formed on the end face of the boss facing the second mounting plate; the thickness of the elastic restraint is greater than the protruding height of the boss on the second end face.

4. The torsion beam structure according to claim 2, characterized in that: The first end surface and the second end surface are both arranged parallel to the installation inclined surface.

5. The torsion beam structure according to claim 1, characterized in that: A third end face connected to the wheel bearing is provided on the end face of the first mounting plate away from the second mounting plate, and a fourth end face fitted and connected to the mounting bevel is provided on the end face of the second mounting plate away from the first mounting plate; the third end face and the fourth end face are arranged at a first preset inclination angle.

6. The torsion beam structure according to any one of claims 1 to 5, characterized in that: The torsion beam body further includes a crossbeam, a longitudinal beam connected to the crossbeam, and a mounting panel connected to the longitudinal beam. The mounting inclined surface is arranged on an end surface of the mounting panel away from the crossbeam.

7. The torsion beam structure according to claim 6, characterized in that: The torsion beam structure further includes a shaft sleeve connected to the longitudinal beam, the longitudinal beam is connected to the vehicle body through the shaft sleeve, and the shaft sleeve and the mounting panel are arranged at opposite ends of the longitudinal beam.

8. The torsion beam structure according to claim 6, characterized in that: The torsion beam structure further includes a mounting bracket, and the mounting panel is mounted on the longitudinal beam via the mounting bracket.

9. The torsion beam structure according to claim 8, characterized in that: The mounting bracket includes a first supporting side plate, a second supporting side plate and an intermediate connecting plate, all of which are connected to the longitudinal beam. The intermediate connecting plate is connected between the first supporting side plate and the second supporting side plate, and the mounting panel is fixedly mounted on the intermediate connecting plate; the intermediate connecting plate is arranged parallel to the mounting inclined surface.

10. A vehicle, characterized in that: The torsion beam structure comprises the torsion beam structure according to any one of claims 1 to 9.

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