阅读说明：本技术 扭转梁式悬架及其制作方法、汽车 (Torsion beam type suspension, manufacturing method thereof and automobile ) 是由 杨展 程林 宋东奇 郝雷伟 韩旭 王存峰 于 2021-06-29 设计创作，主要内容包括：本公开是关于一种扭转梁式悬架及其制作方法、汽车,属于汽车领域。扭转梁式悬架包括：拱形横梁、第一连接部和第二连接部。拱形横梁具有相对的第一端和第二端,拱形横梁的开口处形成供排气管通过的容置空间。第一连接部与拱形横梁的第一端连接,第一连接部用于与汽车的一个轮毂连接。第二连接部与拱形横梁的第二端连接,第二连接部用于与汽车的另一个轮毂连接。(The disclosure relates to a torsion beam type suspension, a manufacturing method thereof and an automobile, and belongs to the field of automobiles. The torsion beam suspension includes: the connecting structure comprises an arched beam, a first connecting part and a second connecting part. The arched beam is provided with a first end and a second end which are opposite, and an accommodating space for the exhaust pipe to pass through is formed at the opening of the arched beam. First connecting portion are connected with the first end of arch crossbeam, and first connecting portion are used for being connected with a wheel hub of car. The second connecting portion is connected with the second end of arch crossbeam, and the second connecting portion is used for being connected with another wheel hub of car.)

1. A torsion beam suspension for use in an automotive vehicle, said torsion beam suspension comprising:

the exhaust pipe structure comprises an arched cross beam (10), wherein the arched cross beam (10) is provided with a first end (101) and a second end (102) which are opposite to each other, and an opening of the arched cross beam (10) forms an accommodating space (40) for an exhaust pipe to pass through;

a first connection (20) connected to a first end (101) of the arched cross-beam (10), the first connection (20) being intended to be connected to a hub of the motor vehicle;

a second connection (30) connected to a second end (102) of the arched cross-member (10), the second connection (30) being intended to be connected to another hub of the motor vehicle.

2. A torsion beam suspension according to claim 1, wherein said arched beam (10) is stamped from a tubular structure;

the arched beam (10) comprises:

a first section (103) positioned in the middle, wherein half of the inner side wall of the corresponding tubular structure of the first section (103) is extruded and attached to the other half, and the cross section of the first section (103) is V-shaped;

and the second section (104) is positioned between the first section (103) and the end part of the arched beam (10), half of the side wall of the tubular structure corresponding to the second section (104) is extruded, the extruded degree of the side wall of the tubular structure is gradually increased from the end part of the arched beam (10) to the end part of the first section (103), and the cross section of the arched beam (10) is in a round rectangle shape at the end part of the arched beam (10).

3. A torsion beam suspension according to claim 2, wherein the orthographic projection of the arched beam (10) on a first plane is arcuate, said first plane being the plane of both ends of the arched beam (10).

4. A torsion beam suspension according to claim 3 wherein the orientation of the opening of the "V" shape is opposite to the orientation of the opening of the orthographic arc.

5. A torsion beam suspension according to any one of claims 1 to 4, wherein the first connection portion (20) comprises:

a first trailing arm (201), wherein the middle of the first trailing arm (201) is connected with the first end (101) of the arched cross beam (10), and the length direction of the first trailing arm (201) is crossed with the length direction of the arched cross beam (10);

a first sleeve (202), wherein the outer side wall of the first sleeve (202) is connected with one end of the first trailing arm (201), and the first sleeve (202) is used for being connected with the automobile torsion shaft bracket;

a first hub axle bracket (203), one part of which is connected with the outer side wall of the first trailing arm (201), the other part of which is connected with the other end of the first trailing arm (201), the first hub axle bracket (203) and the arched crossbeam (10) are respectively positioned at the opposite sides of the first trailing arm (201), and the first hub axle bracket (203) is used for being connected with one hub of the automobile;

a first spring tray (205), one outer side wall of the first spring tray (205) is connected with the outer side wall of the arched cross beam (10), the other outer side wall of the first spring tray (205) is connected with the outer side wall of the first longitudinal arm (201), the first spring tray (205) and the first hub axle bracket (203) are respectively positioned at the opposite sides of the first longitudinal arm (201), and the first spring tray (205) is used for being connected with a first spring of the automobile;

a first shock absorber support (206) connected with the first hub axle support (203), and the first shock absorber support (206) is located between the first bushing (202) and the first hub axle support (203), the first shock absorber support (206) being for connection with a first shock absorber of the automobile.

6. A torsion beam suspension according to claim 5, wherein said first hub axle carrier (203) has a first connection hole (231) therein for connection to a hub of said vehicle, said first connection portion (20) further comprising:

a first hub axle support reinforcing plate (204) connected with the first hub axle support (203), the first hub axle support reinforcing plate (204) having a second connecting hole (241), the second connecting hole (241) communicating with the first connecting hole (231), the first hub axle support reinforcing plate (204) being located between the first hub axle support (203) and one of the hubs of the vehicle to which it is connected.

7. A method of making a torsion beam suspension, the method comprising:

providing an arched beam, wherein the arched beam is provided with a first end and a second end which are opposite to each other, and an opening of the arched beam forms an accommodating space for an exhaust pipe to pass through;

connecting a first connecting part at the first end, the first connecting part being used for connecting with a wheel hub of a motor vehicle;

and the second end is connected with a second connecting part, and the second connecting part is used for being connected with the other wheel hub of the automobile.

8. A method of making a twist beam suspension according to claim 7, wherein said providing an arched beam comprises:

providing a tubular structure, wherein the tubular structure is provided with a middle section and side sections which are respectively connected with two ends of the middle section;

carrying out primary stamping on the tubular structure to enable the cross section of the tubular structure to be in a round corner rectangle shape;

pressing the tubular structure for the second time, so that the middle section is provided with half of the inner side wall of the tubular structure pressed and attached to the other half, and the degree of pressing of the side wall of the tubular structure is gradually increased from the end part of the side section to the end part of the middle section;

performing third punching on the tubular structure to enable the cross section of the middle section to be V-shaped;

and stamping the tubular structure for the fourth time, so that the tubular structure forms an arched cross beam.

9. An automobile, characterized in that it comprises a torsion beam suspension according to any one of claims 1 to 6.

10. The automobile of claim 9, further comprising an exhaust pipe passing through the accommodating space.

Technical Field

The disclosure relates to the field of automobiles, in particular to a torsion beam type suspension and a manufacturing method thereof, and an automobile.

Background

The torsion beam type suspension is one of automobile rear suspension types, two ends of the torsion beam type suspension are respectively connected with two hubs of an automobile, and the torsion beam type suspension balances the vertical bouncing of a left wheel and a right wheel through a torsion beam so as to reduce the shaking of the automobile and keep the stability of the automobile. The torsion beam type suspension has the advantages of simple structure, small occupied space and low cost, and is more and more applied in the field of automobiles.

Torsion beam type suspension is located between the bottom plate and the ground of car, and the demand of vehicle-mounted user to car inner space promotes, and the height of bottom plate is lower and lower more, has certain ground clearance for the space that is used for installing torsion beam type suspension simultaneously in order to guarantee torsion beam type suspension and ground for less and less.

Disclosure of Invention

The embodiment of the disclosure provides a torsion beam type suspension, a manufacturing method thereof and an automobile, which can increase the internal space of the automobile. The technical scheme is as follows:

in one aspect, the present disclosure provides a torsion beam suspension for use in an automobile, the torsion beam suspension comprising: the exhaust pipe comprises an arched beam, a first end and a second end, wherein the first end and the second end are opposite to each other; the first connecting part is connected with the first end of the arched crossbeam and is used for being connected with a hub of the automobile; and the second connecting part is connected with the second end of the arched cross beam and is used for being connected with another hub of the automobile.

In one implementation of the disclosed embodiment, the arched beam is stamped from a tubular structure; the arched beam includes: the first section is positioned in the middle, one half of the inner side wall of the tubular structure corresponding to the first section is extruded and attached to the other half, and the cross section of the first section is V-shaped; and the second section is positioned between the first section and the end part of the arched beam, half of the side wall of the tubular structure corresponding to the second section is extruded, the extruded degree of the side wall of the tubular structure is gradually increased from the end part of the arched beam to the end part of the first section, and the cross section of the arched beam is in a round rectangle shape at the end part of the arched beam.

In an implementation manner of the embodiment of the present disclosure, an orthographic projection of the arched beam on a first plane is an arc, and the first plane is a plane where two ends of the arched beam are located.

In one implementation of the disclosed embodiment, the orientation of the "V" shaped opening is opposite to the orientation of the orthographic arc of openings.

In one implementation manner of the embodiment of the present disclosure, the first connection portion includes: the middle part of the first longitudinal arm is connected with the first end of the arched cross beam, and the length direction of the first longitudinal arm is intersected with the length direction of the arched cross beam; the outer side wall of the first sleeve is connected with one end of the first trailing arm, and the first sleeve is used for being connected with the automobile torsion shaft bracket; a first hub axle bracket having one portion connected to an outer side wall of the first trailing arm and the other portion connected to the other end of the first trailing arm, the first hub axle bracket and the arched beam being located at opposite sides of the first trailing arm, respectively, the first hub axle bracket being adapted to be connected to a hub of the automobile; a first spring tray, one outer side wall of the first spring tray is connected with the outer side wall of the arched cross beam, the other outer side wall of the first spring tray is connected with the outer side wall of the first longitudinal arm, the first spring tray and the first hub axle bracket are respectively positioned at the opposite sides of the first longitudinal arm, and the first spring tray is used for being connected with a first spring of the automobile; and the first shock absorber support is connected with the first hub axle support, is positioned between the first sleeve and the first hub axle support, and is used for being connected with a first shock absorber of the automobile.

In one implementation manner of the embodiment of the present disclosure, the first hub axle bracket has a first connection hole connected to one hub of the automobile, and the first connection part further includes: a first hub axle support stiffener connected to the first hub axle support, the first hub axle support stiffener having a second connection hole that communicates with the first connection hole, the first hub axle support stiffener being positioned between the first hub axle support and a connected one of the hubs of the vehicle.

In another aspect, the present disclosure also provides a method for manufacturing a torsion beam type suspension, including: providing an arched beam, wherein the arched beam is provided with a first end and a second end which are opposite to each other, and an opening of the arched beam forms an accommodating space for an exhaust pipe to pass through; connecting a first connecting part at the first end, the first connecting part being adapted to be connected to a wheel hub of the motor vehicle; the second end is connected with a second connecting part, and the second connecting part is used for being connected with a hub of the automobile.

In one implementation of the disclosed embodiment, the providing an arched beam includes: providing a tubular structure, wherein the tubular structure is provided with a middle section and side sections which are respectively connected with two ends of the middle section; stamping the tubular structure for the first time to enable the cross section of the tubular structure to be in a round corner rectangular shape; pressing the tubular structure for the second time, so that the middle section is provided with half of the inner side wall of the tubular structure pressed and attached to the other half, and the degree of pressing of the side wall of the tubular structure is gradually increased from the end part of the side section to the end part of the middle section; performing third punching on the tubular structure to enable the cross section of the middle section to be V-shaped; and stamping the tubular structure for the fourth time, so that the tubular structure forms an arched cross beam.

In another aspect, embodiments of the present disclosure provide an automobile including a twist beam suspension according to any one of the above aspects.

In one implementation of the embodiment of the present disclosure, the automobile further includes an exhaust pipe, and the exhaust pipe penetrates through the accommodating space.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

in the torsion beam type suspension provided by the embodiment of the disclosure, the first connecting portion is connected with one hub of the automobile, and the second connecting portion is connected with the other hub of the automobile, so that the two hubs of the automobile are connected. Because the crossbeam is the arch, this arch crossbeam also has the opening, when installing torsion beam type suspension in the car, the opening of arch crossbeam is towards ground for the distance on arch crossbeam middle part and ground increases, the opening part forms the accommodation space that supplies the blast pipe to pass through, can place the blast pipe at the opening part of arch crossbeam, when guaranteeing distance between torsion beam type suspension and the blast pipe, reduce the total space that torsion beam type suspension and blast pipe occupy, thereby can increase the space of car bottom.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a torsion beam suspension provided by an embodiment of the present disclosure;

FIG. 2 is a front view of a torsion beam suspension provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of an arched beam according to an embodiment of the present disclosure;

FIG. 4 is a top view of a torsion beam suspension provided by an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view taken along plane A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along plane B-B of FIG. 4;

FIG. 7 is a schematic cross-sectional view taken along plane C-C of FIG. 4;

FIG. 8 is a schematic cross-sectional view of the D-D surface of FIG. 4;

FIG. 9 is a left side view of a twist beam type suspension provided by an embodiment of the present disclosure;

FIG. 10 is an exploded schematic view of a torsion beam suspension provided by an embodiment of the present disclosure;

FIG. 11 is a flow chart of a method of making a torsion beam suspension provided by an embodiment of the present disclosure;

fig. 12 is a flowchart of a method for manufacturing an arched beam according to an embodiment of the present disclosure.

Reference numerals:

10. an arched beam; 101. a first end; 102. a second end; 40. an accommodating space; 20. a first connection portion; 30. a second connecting portion; 103. a first stage; 104. a second stage; 105. reinforcing ribs; 201. a first trailing arm; 202. a first sleeve; 203. a first hub axle bracket; 205. a first spring tray; 206. a first shock absorber support; 231. a first connection hole; 204. a first hub axle support stiffener; 241. a second connection hole; 301. a second trailing arm; 302. a second sleeve; 303. a second hub axle support; 305. a second spring tray; 306. a second shock absorber support; 331. a third connection hole; 304. a second hub axle support stiffener; 341. and a fourth connecting hole.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

In the related art, the exhaust pipe is arranged below the torsion beam type suspension, meanwhile, the automobile can vibrate in the operation process, collision between the exhaust pipe and the torsion beam type suspension is avoided, a certain gap needs to be reserved between the exhaust pipe and the torsion beam type suspension, and the space occupied by the exhaust pipe and the torsion beam type suspension is larger.

The disclosed embodiments provide a torsion beam suspension for use in an automobile. Fig. 1 is a schematic structural diagram of a torsion beam type suspension provided by an embodiment of the present disclosure. Referring to fig. 1, a torsion beam type suspension includes: an arched beam 10, a first connection portion 20, and a second connection portion 30. The arched beam 10 has opposite first and second ends 101 and 102. A first connection 20 is connected to a first end 101 of the arched beam 10, the first connection 20 being intended for connection to a wheel hub of a motor vehicle. The second connecting portion 30 is connected to the second end 102 of the arched beam 10, and the second connecting portion 30 is used for connecting to another wheel hub of the automobile. FIG. 2 is a front view of a torsion beam suspension provided by an embodiment of the present disclosure. Referring to fig. 2, an opening of the arched beam 10 forms an accommodating space 40 through which the exhaust pipe passes.

In the torsion beam type suspension provided in the embodiment of the present disclosure, the first connecting portion 20 is connected to one hub of the automobile, and the second connecting portion 30 is connected to the other hub of the automobile, connecting the two hubs of the automobile. Because the crossbeam is the arch, this arch crossbeam 10 also has the opening, when installing torsion beam type suspension in the car, the opening of arch crossbeam 10 is towards ground for the distance between the middle part of arch crossbeam 10 and ground increases, the opening part forms the accommodation space that supplies the blast pipe to pass through, can place the blast pipe at the opening part of arch crossbeam, when guaranteeing distance between torsion beam type suspension and the blast pipe, reduce the total space that torsion beam type suspension and blast pipe occupy, thereby can increase the space of car bottom.

In the disclosed embodiment, the arched beam 10 is stamped from a tubular structure.

Illustratively, the arched beams 10 may be formed from round tubes by hydroforming.

Because the arched beam 10 is formed by hydraulic forming of a circular tube, compared with the related art, the arched beam has a cylindrical structure, is lighter in weight and smaller in volume, and is beneficial to lightweight design of a torsion beam type suspension.

Fig. 3 is a schematic structural diagram of an arched beam according to an embodiment of the present disclosure. Referring to fig. 3, the arched beam 10 includes a first section 103 and two second sections 104. Wherein the first section 103 and the second section 104 are integral.

FIG. 4 is a top view of a twist beam suspension provided by an embodiment of the present disclosure. Referring to fig. 3 and 4, the first segment 103 is located at the middle, two second segments 104 are respectively located between the first segment 103 and one of the ends of the arched beam 10, and the two second segments 104 are respectively connected to both ends of the first segment 103.

Fig. 5 is a schematic cross-sectional view of plane a-a in fig. 4. Fig. 6 is a schematic cross-sectional view taken along plane B-B of fig. 4.

Wherein the a-a surface is located in the first section 103 and the B-B surface is the end surface of one of the ends of the first section 103. Referring to fig. 5 and 6, the first section 103 is press-fitted to the inner side wall of the corresponding tubular structure in half, and the first section 103 has a V-shaped cross section.

Fig. 7 is a schematic cross-sectional view of plane C-C in fig. 4. Fig. 8 is a schematic cross-sectional view of the D-D surface of fig. 4.

Where the C-C surface is located in the second section 104 and the D-D surface is an end surface of the second section 104. Referring to fig. 7 to 8, the second segment 104 corresponds to the side wall of the tubular structure being pressed halfway, and the side wall of the tubular structure is gradually pressed to an increasing extent from the end of the arched beam 10 to the end of the first segment 103, where the arched beam 10 has a rounded rectangular cross section at the end of the arched beam 10.

In the disclosed embodiment, since the inner sidewall half of the tubular structure corresponding to the first segment 103 is press-fitted to the other half, and the cross section of the first segment 103 is "V" shaped, the cross section of the first segment 103 can be regarded as an approximate closed section. In the related art, the cross beam is a circular tube, so that the cross section of the cross beam is circular, and the inner side wall of the circular cross section is not attached. The structure with a closed cross-section has better strength than the structure with a circular cross-section, which can improve the strength of the arched beam and at the same time reduce the volume of the arched beam 10, thus reducing the space occupied by the torsion beam type suspension.

Experiments prove that the shearing strength of the first section 103 can be improved by arranging the first section 103 in a V-shaped cross section structure, wherein the middle part of the arched cross beam 10 receives larger shearing force in the running process of the automobile. Meanwhile, the first end 101 and the second end 102 of the arched beam 10 are respectively connected with the first connecting portion 20 and the second connecting portion 30, and the cross section of the arched beam 10 is a rounded rectangle at the end of the arched beam 10, so that the two ends of the arched beam 10 are conveniently connected with the first connecting portion 20 and the second connecting portion 30.

Meanwhile, compared with the circular cross section, the height of the structure with the round rectangular cross section in the vertical direction is shorter, so that the volume occupied by the torsion beam type suspension can be further reduced.

In the disclosed embodiment, the half of the inner sidewall of the tubular structure corresponding to the first segment 103 is pressed to fit the other half, and may or may not be completely fitted. Referring to fig. 5 and 6, the cross-section of the entire first section 103 is "V" shaped, with the middle of the "V" shape, the inner side walls of the tubular structure being conformed, and at the ends of the "V" shape, the inner side walls of the tubular structure not being completely conformed.

The extent to which the side walls of the tubular structure are crushed increases progressively from the end of the arched beam 10 to the end of the first section 103. Referring to fig. 7, in the middle portion of the second segment 104, the arched beam 10 has a concave shape in cross section.

Referring again to fig. 4, the orthographic projection of the arched beam 10 on the first plane is an arc, and the first plane is a plane where the two ends of the arched beam 10 are located. Wherein, the two ends of the arched crossbeam 10 are the ends of the arched crossbeam 10. In the configuration shown in fig. 4, the first plane is a horizontal plane.

In the embodiment of the present disclosure, during the operation of the automobile, the arched beam 10 may bend towards the front of the automobile, so that the arched beam 10 is subjected to a large bending stress, when the arched beam 10 is disposed in the automobile, the arched beam 10 takes the shape as shown in fig. 4, and the arched beam 10 also bends towards the front of the automobile, so as to improve the rigidity of the arched beam 10 when the arched beam 10 tilts, thus reducing the bending stress to which the arched beam 10 is subjected under the condition of the same bending degree during the operation of the automobile, so as to reduce the possibility of damage to the torsion beam type suspension, and improve the service life of the arched beam 10.

In the embodiment of the disclosure, the arc-shaped bending angle can be adjusted according to actual requirements, so that the inclination rigidity of the arched beam 10 is adjusted, and the later-stage adjustment work of the automobile is facilitated.

In the disclosed embodiment, the first section 103 may be arranged laterally such that the "V" shaped cross section is arranged laterally, the "V" shaped opening is oriented parallel to the first plane, the space occupied by the first section 103 in the vehicle height direction may be reduced, the total space occupied by the torsion beam type suspension and the exhaust pipe may be further reduced, and the space of the vehicle bottom may be increased.

It can be seen from fig. 4 that the curved opening faces downward in fig. 4, and in conjunction with fig. 5 and 6, the "V" shaped opening faces upward in fig. 4, i.e., the "V" shaped opening faces opposite to the forward projected curved opening. In other implementations, the orientation of the "V" shaped opening may be the same as the orientation of the orthographic arc of openings.

The arched beam 10 provided by the embodiment of the disclosure is of a special-shaped structure, and when the arched beam is bent upwards, the arched beam is also bent towards the front of an automobile, so that the shearing center of the arched beam 10 can be adjusted by adjusting the bending angle, and the difficulty of later-stage adjustment work of the torsion beam type suspension is reduced.

Referring again to fig. 4, 7 and 8, the arched beam 10 further includes reinforcing ribs 105, and the reinforcing ribs 105 are connected to the sidewalls of the second section 104 to increase the strength of the second section 104.

FIG. 9 is an exploded schematic view of a torsion beam suspension provided by an embodiment of the present disclosure. Referring to fig. 9, the first connection part 20 includes: a first trailing arm 201, a first sleeve 202, a first hub axle bracket 203, a first spring tray 205, and a first shock absorber bracket 206.

The middle of the first trailing arm 201 is connected to the first end 101 of the arched beam 10, and the longitudinal direction of the first trailing arm 201 intersects the longitudinal direction of the arched beam 10. The outer side wall of the first sleeve 202 is connected with one end of the first trailing arm 201, and the first sleeve 202 is used for being connected with an automobile torsion shaft support. A portion of the first hub axle bracket 203 is connected to an outer side wall of the first trailing arm 201, another portion of the first hub axle bracket 203 is connected to the other end of the first trailing arm 201, the first hub axle bracket 203 and the arched beam 10 are respectively located at opposite sides of the first trailing arm 201, and the first hub axle bracket 203 is used for connection to one hub of the automobile. One outer side wall of the first spring tray 205 is connected with the outer side wall of the arched beam 10, the other outer side wall of the first spring tray 205 is connected with the outer side wall of the first trailing arm 201, the first spring tray 205 and the first hub axle bracket 203 are respectively located at the opposite sides of the first trailing arm 201, and the first spring tray 205 is used for being connected with a first spring of an automobile. The first shock absorber support 206 is connected with the first hub axle support 203, and the first shock absorber support 206 is located between the first bushing 202 and the first hub axle support 203, and the first shock absorber support 206 is used for being connected with a first shock absorber of the automobile.

In the disclosed embodiment, the first trailing arm 201 is used to connect the first bushing 202 with the arched beam 10, the first hub axle bracket 203 with the arched beam 10, the first spring tray 205 with the arched beam 10, and the first damper bracket 206 with the arched beam 10, thereby connecting the respective components with the arched beam 10.

The first bushing 202 is connected to a torsion axle bracket of the vehicle, and connects the torsion beam suspension to the torsion axle. The first hub axle bracket 203 is connected to a hub of the vehicle, connecting the hub to the torsion beam suspension. The first spring tray 205 is connected to the first spring of the vehicle, connecting the first spring to the torsion beam suspension. The first shock absorber bracket 206 is connected to a first shock absorber of the vehicle, connecting the first shock absorber to the torsion beam suspension.

Referring again to fig. 9, the first hub axle bracket 203 has a first coupling hole 231 formed therein to be coupled to one hub of the automobile.

In the embodiment of the present disclosure, the first hub axle bracket 203 is connected to the first hub through the first connection hole 231, the hub has a threaded hole communicated with the first connection hole 231, and the bolt passes through the first connection hole 231 and is threadedly connected to the threaded hole.

Referring again to fig. 9, the first connection part further includes: the first hub axle supports a stiffening plate 204. The first hub axle support reinforcing plate 204 is connected to the first hub axle support 203.

FIG. 10 is an exploded schematic view of a torsion beam suspension provided by an embodiment of the present disclosure. Referring to fig. 9 and 10, the first hub axle support reinforcing plate 204 has a second coupling hole 241, the second coupling hole 241 communicates with the first coupling hole 231, and the first hub axle support reinforcing plate 204 is located between the first hub axle support 203 and one of the hubs of the connected vehicles.

Arranging the first hub-shaft support reinforcing plate 204 between the first hub-shaft support 203 and one of the hubs of the connected automobile can reduce the wear between the first hub-shaft support 203 and the hub, thereby increasing the strength.

In the embodiment of the present disclosure, the bolt is threadedly coupled with the threaded hole through the first coupling hole 231 and the second coupling hole 241 in sequence.

In the disclosed embodiment, the torsion beam type suspension is a suspension of a metal structure, so that the strength of the torsion beam type suspension of the suspension is ensured. For example, the torsion beam suspension is a stainless steel suspension.

In the disclosed embodiment, the first trailing arm 201, the first sleeve 202, the first hub axle bracket 203, the first hub axle bracket stiffener 204, the first spring tray 205, and the first shock absorber bracket 206 are all stamped and formed from a single layer of sheet metal.

In the embodiment of the present disclosure, the first trailing arm 201 and the arched beam 10, the first trailing arm 201 and the first sleeve 202, the first hub axle bracket 203 and the first trailing arm 201, the first spring tray 205 and the first trailing arm 201, and the first damper bracket 206 and the first trailing arm 201 are all connected by welding.

Referring again to fig. 9, the second connection part 30 includes: a second trailing arm 301, a second sleeve 302, a second hub axle bracket 303, a second spring tray 305, and a second shock absorber bracket 306.

The middle of the second trailing arm 301 is connected to the second end 102 of the arched beam 10, and the longitudinal direction of the second trailing arm 301 intersects the longitudinal direction of the arched beam 10. The outer side wall of the second sleeve 302 is connected with one end of the second trailing arm 301, and the second sleeve 302 is used for being connected with an automobile torsion shaft bracket. A portion of the second hub axle bracket 303 is connected to an outer sidewall of the second trailing arm 301, another portion of the second hub axle bracket 303 is connected to the other end of the second trailing arm 301, the second hub axle bracket 303 and the arched beam 10 are respectively located at opposite sides of the second trailing arm 301, and the second hub axle bracket 303 is used to be connected to one hub of the automobile. One outer side wall of the second spring tray 305 is connected with the outer side wall of the arched beam 10, the other outer side wall of the second spring tray 305 is connected with the outer side wall of the second trailing arm 301, the second spring tray 305 and the second hubload bracket 303 are respectively located at the opposite sides of the second trailing arm 301, and the second spring tray 305 is used for being connected with a second spring of the automobile. The second shock absorber support 306 is connected to the second hub axle support 303, and the second shock absorber support 306 is located between the second bushing 302 and the second hub axle support 303, and the second shock absorber support 306 is used for connecting with a second shock absorber of the automobile. The second hub axle bracket 303 has a third coupling hole 331 formed therein to be coupled to a hub of an automobile.

The second connection portion 30 further includes: the second hub axle supports a stiffening plate 304. The second hub axle support reinforcing plate 304 is connected to the second hub axle support 303, the second hub axle support reinforcing plate 304 has a fourth connecting hole 341, the fourth connecting hole 341 communicates with the third connecting hole 331, and the second hub axle support reinforcing plate 304 is located between the second hub axle support 303 and one of the hubs of the connected automobile.

In the embodiment of the present disclosure, the structure of the second connection portion 30 is the same as that of the first connection portion 20, and is not described herein again.

Through experimental tests, compared with the torsion beam type suspension in the related art, when the torsion beam type suspension is applied to an automobile, the torsion beam type suspension provided by the embodiment of the disclosure can lower the underbody of the automobile by 10 millimeters (mm) to 20 mm.

FIG. 11 is a flow chart of a method of making a torsion beam suspension provided by an embodiment of the present disclosure. Referring to fig. 11, the method includes:

in step 501, an arched beam is provided.

The arched beam is provided with a first end and a second end which are opposite to each other, and an accommodating space for the exhaust pipe to pass through is formed at the opening of the arched beam.

Fig. 12 is a flowchart of a method for manufacturing an arched beam according to an embodiment of the present disclosure. Referring to fig. 12, step 501 includes:

in step 511, a tubular structure is provided, the tubular structure having a middle section and side sections connected to two ends of the middle section.

In step 512, the tubular structure is first stamped such that the tubular structure has a rounded rectangular cross-section.

In step 513, the tubular structure is stamped a second time so that in the middle section, half of the inside walls of the tubular structure are pressed against the other half, the extent to which the side walls of the tubular structure are pressed gradually increasing from the ends of the side sections to the ends of the middle section.

In step 514, a third pass is performed on the tubular structure such that the cross-section of the middle section is "V" shaped.

In step 515, the tubular structure is stamped a fourth time so that the tubular structure forms an arched beam.

In the embodiment of the present disclosure, the first section is obtained by stamping the middle section for four times, and the second section is obtained by stamping the side section for four times.

In step 502, a first connection is connected at a first end.

Wherein the first connection is for connection with a wheel hub of a motor vehicle.

In step 503, a second connection is connected at a second end.

Wherein the second connecting portion is used for connecting with another wheel hub of the automobile.

The embodiment of the disclosure also provides an automobile comprising the torsion beam type suspension.

In the embodiment of the disclosure, the automobile further comprises an exhaust pipe, and the exhaust pipe penetrates through the accommodating space.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.