Torsion beam rear suspension structure and automobile

Abstract

The utility model relates to the technical field of automobiles, in particular to a torsion beam rear suspension structure and an automobile. A torsion beam rear suspension structure is used for an automobile and comprises a main cross beam. The two groups of side beams are respectively connected to the two ends of the main cross beam; the two groups of wheel mounting brackets are respectively connected to the two groups of side beams; wherein the wheel mounting bracket is provided with a first mounting hole and a second mounting hole, and the first mounting hole is a long hole and is used for mounting a wheel hub bearing; and the plurality of second mounting holes are arranged, are long holes and are used for mounting a caliper connecting plate. According to the torsion beam rear suspension structure and the automobile, the height of the wheel center is adjustable, cost is reduced, and efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and particularly to a torsion beam rear suspension structure and an automobile. Background Art

[0002] Existing automobile torsion beam rear suspensions have the disadvantage that they cannot be fully shared for different models (such as sedans, SUVs, MPVs, etc.) on the same platform with different wheel center heights. When there are differences in wheel center heights for different models on the same platform, the existing torsion beam rear suspension needs to adjust the installation angle of the torsion beam mounting bracket and replace the wheel mounting bracket to achieve wheel center adjustment.

[0003] Therefore, the following disadvantages exist:

[0004] 1. Replacing the wheel mounting bracket will generate new assembly part numbers, increasing the types of assembly parts. This results in a large number of product types, high development and verification costs, and low production efficiency.

[0005] 2. The applicable range is single, and multiple torsion beam rear suspensions need to be developed. The wheel mounting brackets welded to the torsion beam rear suspension need to be redesigned, adjusting the through holes and installation point positions, or even their own size structures to meet the design requirements. This leads to increased development costs and management costs, and there is also a risk of misassembly during co-line assembly in the workshop. Summary of the Utility Model

[0006] Based on this, it is necessary to provide a torsion beam rear suspension structure and an automobile with adjustable wheel center height, cost reduction, and efficiency improvement.

[0007] A torsion beam rear suspension structure for an automobile, comprising:

[0008] A main crossbeam;

[0009] Side beams, two sets of the side beams are provided, and the two sets of side beams are respectively connected to both ends of the main crossbeam;

[0010] Wheel mounting brackets, two sets of the wheel mounting brackets are provided, and the two sets of wheel mounting brackets are respectively connected to the two sets of side beams;

[0011] Wherein, the wheel mounting bracket is provided with a first mounting hole and a second mounting hole. The first mounting hole is an elongated hole for installing a wheel hub bearing; a plurality of the second mounting holes are provided and configured as elongated holes for installing a caliper connecting plate.

[0012] In one embodiment, the lengths of the first mounting hole and the second mounting hole extend along the vehicle height direction Z.

[0013] In one embodiment, the first mounting hole is provided at the middle position of the wheel mounting bracket, and a plurality of the second mounting holes surround the outside of the first mounting hole.

[0014] In one embodiment, the wheel mounting bracket includes a body, a first flange, and a second flange. The body has a transverse direction and a longitudinal direction. The first flange and the second flange are disposed on both sides of the transverse direction of the body and are respectively connected to the side beam.

[0015] In one embodiment, weight-reducing holes are respectively provided on the first flange and the second flange.

[0016] In one embodiment, the wheel mounting bracket further includes a third flange. The third flange is disposed at the bottom of the longitudinal direction of the body and is connected to the side beam.

[0017] In one embodiment, the torsion beam rear suspension structure further includes a torsion beam bracket. The torsion beam bracket is disposed on the side beam, and a flexible bushing is provided between the torsion beam bracket and the side beam.

[0018] In one embodiment, the torsion beam rear suspension structure further includes a spring bracket. The spring bracket is disposed at the connection between the main cross beam and the side beam and is respectively connected to the main cross beam and the side beam.

[0019] In one embodiment, the torsion beam rear suspension structure further includes a shock absorber bracket. The shock absorber bracket is close to the spring bracket and is respectively connected to the side beam and the spring bracket.

[0020] In one embodiment, the torsion beam rear suspension structure further includes a wire harness bracket. The wire harness bracket is disposed at a position on the side beam close to the wheel mounting bracket and is fixedly connected to the side beam.

[0021] An automobile includes the torsion beam rear suspension structure according to any one of the above embodiments.

[0022] Compared with the prior art, the torsion beam rear suspension structure has the following advantages:

[0023] (1) Both the first mounting hole and the second mounting hole on the wheel mounting bracket are set as long holes. Then, by adjusting the mounting position of the wheel mounting bracket and the caliper connecting plate, the position of the wheel hub bearing can be adjusted to realize the adjustment of the wheel center height, and further realize the adjustment of the vehicle body height and the ground clearance of the chassis. The wheel center height can be adjusted within a certain range, and the assembly and installation parameters can be adjusted, so as to adapt to the design requirements of different models on the same platform.

[0024] (2) It will not increase the types of assembly parts, reduce the development and verification costs, and improve the production efficiency.

[0025] (3) There is no need to develop new molds, enabling the sharing of molds, reducing development costs, shortening the development cycle, improving production efficiency, and enhancing the platformization of automobiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic of the torsion beam rear suspension structure provided by the present application Figure 1 。

[0028] Figure 2 Structural schematic diagram of the wheel mounting bracket provided by the present application.

[0029] Figure 3 Front view schematic of the wheel mounting bracket provided by the present application.

[0030] Figure 4 Structural schematic of the cooperation between the wheel mounting bracket and the caliper connecting plate provided by the present application.

[0031] Figure 5 Cooperation schematic of the wheel mounting bracket and the caliper connecting plate in the upper limit state provided by the present application.

[0032] Figure 6 Cooperation schematic of the wheel mounting bracket and the caliper connecting plate in the lower limit state provided by the present application.

[0033] Figure 7 Structural schematic of the torsion beam rear suspension structure provided by the present application Figure 2 。

[0034] Figure 8 Structural schematic of the torsion beam rear suspension structure provided by the present application Figure 3 。

[0035] Reference numerals: 10, main cross beam; 20, side beam; 30, wheel mounting bracket; 31, first mounting hole; 32, second mounting hole; 33, body; 34, first flanging; 35, second flanging; 351, recess; 352, weld seam; 353, weight reduction hole; 36, third flanging; 40, torsion beam bracket; 50, flexible bushing; 60, spring bracket; 70, shock absorber bracket; 80, wire harness bracket; 90, caliper connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the description of the present application are for illustrative purposes only and do not represent the only implementation.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in the description of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the description of the present application includes any and all combinations of one or more of the related listed items.

[0041] Please refer to Figures 1 to 8, this application provides a torsion beam rear suspension structure for an automobile. The torsion beam rear suspension structure includes a main cross beam 10, side beams 20, and wheel mounting brackets 30. Among them, two sets of side beams 20 are provided and are respectively connected to both ends of the main cross beam 10 along the length direction of the main cross beam 10. Two sets of wheel mounting brackets 30 are provided and are respectively connected to the two sets of side beams 20.

[0042] As Figures 2 - 4 shown, the wheel mounting bracket 30 is provided with a first mounting hole 31 and a second mounting hole 32. The first mounting hole 31 is an elongated hole for mounting a wheel hub bearing. A plurality of second mounting holes 32 are provided and are set as elongated holes for mounting a caliper connecting plate 90.

[0043] It can be understood that the caliper connecting plate 90 is connected to the second mounting hole 32 by bolts. Since the second mounting hole 32 is an elongated hole, the bolts can move a certain position in the length direction of the second mounting hole 32, and then the caliper connecting plate 90 can move a certain position in the length direction of the second mounting hole 32 relative to the wheel mounting bracket 30. The middle of the caliper connecting plate 90 is also provided with a mounting hole. During the movement of the caliper connecting plate 90, the mounting hole on the caliper connecting plate 90 can drive the wheel hub bearing to displace in the length direction of the first mounting hole 31, so as to realize the adjustment of the wheel center.

[0044] It can be understood that this application can be arbitrarily adjusted within the installation position between the upper limit ( Figure 5 ) and the lower limit ( Figure 6 ). The distance between the centers of the two modes is the adjustable height of the wheel center.

[0045] Furthermore, the lengths of the first mounting hole 31 and the second mounting hole 32 extend along the vehicle height direction Z. Thus, the adjustment of the wheel center ground clearance is realized, and the adjustment of the vehicle body height and the chassis ground clearance is realized.

[0046] Exemplarily, the above-mentioned elongated holes can be long round holes, rectangular holes, elliptical holes, etc., which are specifically selected according to actual needs as long as the position adjustment can be satisfied.

[0047] Furthermore, the first mounting hole 31 is arranged in the middle position of the wheel mounting bracket 30, and a plurality of second mounting holes 32 are arranged around the outside of the first mounting hole 31. The number of the second mounting holes 32 can be set to more than two. In this embodiment, it is preferably set to four and evenly arranged around the outside of the first mounting hole 31 in a circle, so that the position positioning between the wheel mounting bracket 30 and the caliper connecting plate 90 is more stable.

[0048] Specifically, the wheel mounting bracket 30 includes a body 33, a first flange 34, and a second flange 35. The body 33 has a transverse direction and a longitudinal direction. In this embodiment, the longitudinal direction is the vehicle height direction Z, and the transverse direction is the horizontal direction perpendicular to the vehicle height direction Z.

[0049] Further, the first flange 34 and the second flange 35 are provided on both sides of the body 33 in the transverse direction and are respectively connected to the side beam 20. The connection manner between the first flange 34 and the second flange 35 and the side beam 20 can be welding, screwing, etc. In this embodiment, welding is preferably used.

[0050] In order to better adapt to the connection with the side beam 20, a recess 351 is respectively provided at the bottom of the first flange 34 and the second flange 35, and weld seams 352 are provided at the edges of the recess 351 to enhance the connection with the side beam 20.

[0051] In one embodiment, the wheel mounting bracket 30 further includes a third flange 36, and the third flange 36 is provided at the bottom of the body 33 in the longitudinal direction and is connected to the side beam 20. Thus, three sides of the wheel mounting bracket 30 are connected to the side beam 20, and the connection is more stable.

[0052] Exemplarily, the connection manner between the third flange 36 and the side beam 20 can be welding, screwing, etc. In this embodiment, welding is preferably used.

[0053] Preferably, the first flange 34, the second flange 35, and the third flange 36 are integrally formed with the body 33. Specifically, they are formed by directly bending three sides of the body 33, which is simple to process and has low production costs.

[0054] Further, weight-reducing holes 353 are respectively provided on the first flange 34 and the second flange 35. The weight-reducing holes 353 penetrate through the first flange 34 and the second flange 35 in the transverse direction. Without affecting the strength of the first flange 34 and the second flange 35, the weight of the wheel mounting bracket 30 is reduced, the consumption of materials is reduced, and the cost is saved.

[0055] Of course, the size, shape, and dimensions of the weight-reducing holes 353 can be selected according to actual needs and will not be elaborated here.

[0056] In one embodiment, as Figure 7 、 Figure 8 shown, the torsion beam rear suspension structure further includes torsion beam brackets 40 for the installation of the torsion beam. The torsion beam brackets 40 are also provided in two groups, and the two groups of torsion beam brackets 40 are respectively provided on the two groups of side beams 20. And a flexible bushing 50 is provided between the torsion beam brackets 40 and the side beams 20.

[0057] Exemplarily, the torsion beam bracket 40 can be fixed to the side beam 20 by means of screwing, welding, etc. In this embodiment, screwing is preferably adopted for easy disassembly. The flexible bushing 50 can be made of materials such as rubber and resin. In this embodiment, rubber is preferably used.

[0058] Further, the torsion beam rear suspension structure further includes spring brackets 60 for mounting coil springs. The spring brackets 60 are also provided in two groups, and the two groups of spring brackets 60 are respectively arranged on the two groups of side beams 20. They are correspondingly located at the connection of the main cross beam 10 and the side beam 20, and are respectively connected to the main cross beam 10 and the side beam 20.

[0059] Exemplarily, the spring brackets 60 can be connected to the main cross beam 10 and the side beam 20 by means of screwing, welding, etc. In this embodiment, welding is preferably adopted for firm connection.

[0060] In one embodiment, the torsion beam rear suspension structure further includes shock absorber brackets 70 for mounting shock absorbers. The shock absorber brackets 70 are also provided in two groups, and the two groups of shock absorber brackets 70 are respectively arranged on the two groups of side beams 20. The shock absorber brackets 70 are arranged close to the spring brackets 60 and are respectively connected to the side beam 20 and the spring bracket 60.

[0061] Exemplarily, the shock absorber brackets 70 can be connected to the side beam 20 and the spring bracket 60 by means of screwing, welding, etc. In this embodiment, welding is preferably adopted for firm connection.

[0062] Further, the torsion beam rear suspension structure further includes wire harness brackets 80 for mounting wire harnesses. The wire harness brackets 80 are also provided in two groups, and the two groups of wire harness brackets 80 are respectively arranged on the two groups of side beams 20. The wire harness brackets 80 are arranged at the position of the side beam 20 close to the wheel mounting bracket 30 and are fixedly connected to the side beam 20.

[0063] Exemplarily, the wire harness brackets 80 can be connected to the side beam 20 by means of screwing, welding, etc. In this embodiment, welding is preferably adopted for firm connection.

[0064] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0065] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A torsion beam rear suspension structure for an automobile, characterized in that: Comprising: Main crossbeam (10); Side beams (20), where two sets of the side beams (20) are provided, and the two sets of side beams (20) are respectively connected to two ends of the main crossbeam (10); Wheel mounting brackets (30), where two sets of the wheel mounting brackets (30) are provided, and the two sets of wheel mounting brackets (30) are respectively connected to the two sets of side beams (20); Wherein, the wheel mounting bracket (30) is provided with a first mounting hole (31) and a second mounting hole (32), the first mounting hole (31) is an elongated hole for mounting a wheel hub bearing; the second mounting hole (32) is provided in multiple numbers and configured as an elongated hole for mounting a caliper connecting plate (90).

2. The torsion beam rear suspension structure according to claim 1, characterized in that, The lengths of the first mounting hole (31) and the second mounting hole (32) extend along the vehicle height direction Z.

3. The torsion beam rear suspension structure according to claim 1, characterized in that, The first mounting hole (31) is provided at the middle position of the wheel mounting bracket (30), and multiple second mounting holes (32) are arranged around the outside of the first mounting hole (31).

4. The torsion beam rear suspension structure according to claim 1, characterized in that: The wheel mounting bracket (30) includes a body (33), a first flange (34), and a second flange (35), the body (33) has a transverse direction and a longitudinal direction; the first flange (34) and the second flange (35) are both provided on two sides of the transverse direction of the body (33) and are respectively connected to the side beam (20).

5. The torsion beam rear suspension structure according to claim 4, wherein Weight reduction holes (353) are respectively provided on the first flange (34) and the second flange (35).

6. The torsion beam rear suspension structure according to claim 4, characterized in that, The wheel mounting bracket (30) further includes a third flange (36), the third flange (36) is provided at the bottom of the longitudinal direction of the body (33) and is connected to the side beam (20).

7. The torsion beam rear suspension structure according to claim 1, characterized in that, The torsion beam rear suspension structure further includes a torsion beam bracket (40), the torsion beam bracket (40) is provided on the side beam (20), and a flexible bushing (50) is provided between the torsion beam bracket (40) and the side beam (20).

8. The torsion beam rear suspension structure according to claim 1, characterized in that, The torsion beam rear suspension structure further includes a spring bracket (60), the spring bracket (60) is provided at the connection of the main crossbeam (10) and the side beam (20) and is respectively connected to the main crossbeam (10) and the side beam (20).

9. The torsion beam rear suspension structure according to claim 8, characterized in that, The torsion beam rear suspension structure further includes a shock absorber bracket (70), the shock absorber bracket (70) is close to the spring bracket (60) and is respectively connected to the side beam (20) and the spring bracket (60).

10. The torsion beam rear suspension structure according to claim 1, characterized in that, The torsion beam rear suspension structure further includes a wire harness bracket (80), the wire harness bracket (80) is provided at a position on the side beam (20) close to the wheel mounting bracket (30) and is fixedly connected to the side beam (20).

11. A vehicle, characterized in that, Including the torsion beam rear suspension structure according to any one of the above claims 1-10.

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