Torsion-resistant suspension system and vehicle

Abstract

The utility model provides an anti-torsion suspension system and a vehicle, the anti-torsion suspension system comprises a structure body and a connecting support connected with the structure body; the structure body is used for being connected with an auxiliary frame, suspension bushings are arranged on the two opposite sides of the structure body respectively, and elastic buffering bodies are arranged on inner cores of the suspension bushings on the sides in a sleeving mode. The connecting support is used for being connected with a power assembly, the connecting support is arranged between the inner cores on the two sides, and the elastic buffering body can abut against the connecting support so as to limit the torsion angle of the connecting support. According to the anti-torsion suspension system, the elastic buffer bodies which can abut against the connecting support are arranged on the inner cores of the suspension bushings on the two sides in the sleeved mode, the torsion angle of the connecting support can be limited through the elastic buffer bodies, and therefore the anti-torsion suspension system has the capacity of bearing large power assembly torque, and meanwhile the torsion angle of the connecting support can be limited through the elastic buffer bodies. And the problem that the suspension bushing and the external connecting piece are loosened can be well prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to an anti-torsion suspension system. Meanwhile, the utility model also relates to a vehicle provided with the anti-torsion suspension system. Background Art

[0002] The three-point pendulum suspension system is increasingly widely used in the field of automotive suspension systems due to its simple structure, low cost, and good vibration isolation effect. The suspensions of many fuel vehicles, electric vehicles, and hybrid vehicles are three-point pendulum suspensions. The three-point pendulum suspension includes left suspension, right suspension, and rear suspension. The rear suspension usually adopts anti-torsion suspension, and its main functions are shock isolation, torque limiting, isolation of powertrain torsional vibration, and limitation of powertrain torsional displacement. It is an important anti-torsion structure in the three-point pendulum suspension. However, the existing rear suspension is limited by its own structure. After the powertrain generates a large torque, it is easy to have problems such as loosening and abnormal noise of the suspension bracket bushing, and loosening of the connection bolts of the suspension body and the suspension bracket, thereby affecting the use effect of the rear suspension. Utility Model Content

[0003] In view of this, the utility model aims to provide an anti-torsion suspension system, so as to facilitate the ability to bear a larger powertrain torque and better prevent the suspension bushing and the connecting parts from loosening.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A torsion suspension system comprises a structural body and a connecting bracket connected to the structural body;

[0006] The structural body is used to be connected to the sub-frame, and two opposite sides of the structural body are respectively provided with suspension bushings, and an elastic buffer body is sleeved on the inner core of the suspension bushing on each side;

[0007] The connecting bracket is used to be connected to the powertrain, and the connecting bracket is arranged between the inner cores on both sides and connected to each inner core through an external connecting piece. The elastic buffer body can abut against the connecting bracket to limit the torsion angle of the connecting bracket.

[0008] Furthermore, sleeves are respectively provided on two opposite sides of the structural body;

[0009] The suspension bushing on each side is interference-pressed into the sleeve on the corresponding side, and the elastic buffer body on each side abuts against the sleeve on the corresponding side.

[0010] Furthermore, two sleeves are arranged at intervals on two opposite sides of the structural body, the suspension bushings are arranged one-to-one correspondingly to the sleeves, and an elastic buffer body is sleeved on at least the inner core of the diagonally arranged suspension bushings;

[0011] The diagonally arranged elastic buffer body abuts against the connecting bracket, and can limit the torsion angle of the connecting bracket.

[0012] Furthermore, the sleeve and the structural body are integrally cast.

[0013] Further, the rubber body of the suspension bushing includes a main body portion and a covering portion;

[0014] The main body is connected between the inner core and the outer tube of the suspension bushing, the covering portion covers the inner core, and the elastic buffer body is interference-fitted on the covering portion.

[0015] Furthermore, the structural body includes two side panels arranged opposite to each other, and a bottom panel connected between the side panels at both sides;

[0016] The suspension bushings on both sides are arranged on the side plates on the corresponding sides.

[0017] Further, one end of the bottom plate has a protruding portion protruding outward relative to the side plate;

[0018] The structural body is connected to the sub-frame via the protruding portion.

[0019] Furthermore, the connecting bracket is plate-shaped and includes a main body portion and a connecting portion;

[0020] The main body is arranged between the side plates at both sides and connected to the inner core. The connecting portion protrudes toward the other end of the side plate relative to the protruding portion, and the connecting portion is used to be connected to the powertrain.

[0021] Furthermore, the protruding portion is provided with a first connecting hole, and the structural body is connected to the sub-frame via an external connecting member passing through the first connecting hole; and / or,

[0022] The connecting portion is provided with a second connecting hole, and the connecting bracket is connected to the power assembly via an external connecting piece passing through the second connecting hole.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] The anti-torsion suspension system described in the utility model is characterized in that suspension bushings are respectively provided on two opposite sides of the structural body, and an elastic buffer body capable of abutting against the connecting bracket is sleeved on the inner core of each suspension bushing. The torsion angle of the connecting bracket can be limited by the elastic buffer body, thereby facilitating the anti-torsion suspension system to have the ability to bear a larger powertrain torque while better preventing the problem of loosening of the suspension bushing and external connecting parts.

[0025] In addition, by providing a sleeve on the structural body, the installation of the suspension bushing is facilitated, and the suspension bushing is press-fitted in the sleeve with interference fit, which is beneficial to improving the installation stability of the suspension bushing. In addition, two sleeves arranged at intervals are provided on the two opposite sides of the structural body, and at least an elastic buffer body is sleeved on the inner core of the diagonally arranged suspension bushing, which is beneficial to abutting the connecting bracket through the diagonally arranged elastic buffer body, thereby limiting the torsion angle of the connecting bracket, and the provision of the elastic buffer body also makes the contact between the connecting bracket and the structural body smoother, which is beneficial to reducing contact noise.

[0026] In addition, by integrally casting the sleeve and the structural body, the structure is simple, easy to process and manufacture, and also convenient to assemble the torsion suspension system. Moreover, by making the rubber body include a body part and a covering part, and making the covering part cover the inner core, it is beneficial to improve the connection strength between the rubber body and the inner core, and the elastic buffer body is interference-fitted on the covering part, which is beneficial to improve the setting stability of the elastic buffer body and prevent the elastic buffer body from falling off the inner core.

[0027] Secondly, by making the structural body include two side plates arranged opposite to each other and a bottom plate connected between the two side plates, the structure is simple and easy to manufacture. At the same time, it is easy to make the structural body have better structural strength and also convenient to set the suspension bushing.

[0028] Furthermore, by providing a protruding portion on the bottom plate, it is convenient to connect the structural body with the sub-frame, prevent the sub-frame from interfering with the connecting bracket, and provide sufficient operating space for the connecting operation between the sub-frame and the structural body, which is convenient for operation. In addition, by making the connecting bracket include a main body part and a connecting part, the structure is simple and convenient for connection with the powertrain and the structural body.

[0029] Another object of the present invention is to provide a vehicle, on which the above-mentioned torsion suspension system is provided.

[0030] The vehicle described in the utility model has the same technical effect as the above-mentioned torsion suspension system compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of the torsion suspension system according to an embodiment of the utility model;

[0033] Figure 2 It is a front view of the torsion suspension system according to an embodiment of the utility model;

[0034] Figure 3 A top view of the torsion suspension system according to an embodiment of the utility model;

[0035] Figure 4 It is a schematic structural diagram of the suspension bushing described in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1. Structural body; 101. Side plate; 102. Bottom plate; 2. Connecting bracket; 201. Main body; 202. Connecting part; 3. Suspension bushing; 301. Inner core; 302. Rubber body; 3021. Covering part; 303. Outer tube; 4. Elastic buffer body; 5. Sleeve; 6. Protruding part; 7. Through hole; 8. First connecting hole; 9. Second connecting hole. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0041] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0042] Embodiment 1

[0043] This embodiment relates to a torsion suspension system, the overall structure of which is as follows: Figures 1 to 3 As shown in , the torsion suspension system includes a structural body 1 and a connecting bracket 2 connected to the structural body 1. The structural body 1 is used to connect to the subframe, and the two opposite sides of the structural body 1 are respectively provided with suspension bushings 3, and an elastic buffer body 4 is sleeved on the inner core 301 of the suspension bushing 3 on each side. The connecting bracket 2 is used to connect to the powertrain, and the connecting bracket 2 is provided between the inner cores 301 on both sides and connected to each inner core 301 through an external connecting member. The elastic buffer body 4 can abut against the connecting bracket 2 to limit the torsion angle of the connecting bracket 2.

[0044] In the present embodiment, suspension bushings 3 are respectively provided on two opposite sides of the structural body 1, and an elastic buffer body 4 capable of abutting against the connecting bracket 2 is sleeved on the inner core 301 of each suspension bushing 3. The torsion angle of the connecting bracket 2 can be limited by the elastic buffer body 4, thereby facilitating the torsion-resistant suspension system to have the ability to bear a larger powertrain torque while better preventing the problem of loosening of the suspension bushing 3 and external connecting parts.

[0045] It is worth noting that the above-mentioned external connecting parts can be bolts commonly used in the prior art. During assembly, the bolts pass through the connecting bracket 2 and the suspension bushings 3 on both sides to achieve the connection between the connecting bracket 2 and the inner cores 301 on both sides.

[0046] Based on the above overall introduction, as a preferred implementation method, Figure 3 As shown in the figure, in this embodiment, sleeves 5 are respectively provided on two opposite sides of the structural body 1. The suspension bushings 3 on each side are press-fitted into the sleeves 5 on the corresponding side, and the elastic buffers 4 on each side abut against the sleeves 5 on the corresponding side. It can be understood that by providing the sleeves 5 on the structural body 1, the installation of the suspension bushings 3 is facilitated, and the suspension bushings 3 are press-fitted into the sleeves 5 with an interference fit, which is conducive to improving the installation stability of the suspension bushings 3.

[0047] In addition, the elastic buffer body 4 is abutted against the sleeve 5 on the corresponding side, which is beneficial to improving the installation stability of the elastic buffer body 4. At the same time, it is convenient to better limit the torsion angle of the connecting bracket 2 through the sleeve 5 and the elastic buffer body 4, thereby preventing the suspension bushing 3 and the external connecting parts from loosening.

[0048] It should be noted that the structure of the suspension bushing 3 in this embodiment can be set with reference to the structure of the suspension bushing 3 commonly used in the prior art, such as Figure 4As shown in , it generally includes an inner core 301, an outer tube 303, and a rubber body 302 connected between the inner core 301 and the outer tube 303. In specific implementation, the vibration isolation performance of the whole vehicle can be improved by adjusting the bushing size and the hardness of the rubber body.

[0049] In addition, in this embodiment, a sleeve 5 for installing the suspension bushing 3 is provided on the structural body 1, which is only used as a preferred implementation. Moreover, in other embodiments, the sleeve 5 may not be provided, and the suspension bushing 3 may be directly inserted into the structural body 1. In this case, the elastic buffer body 4 may be brought into contact with the rubber body 302 or the outer tube 303 of the suspension bushing 3.

[0050] As a preferred implementation method, Figure 3 As shown in the figure, in this embodiment, two sleeves 5 are arranged at intervals on two opposite sides of the structural body 1, and the suspension bushings 3 are arranged one by one in correspondence with the sleeves 5. Elastic buffers are sleeved on the inner cores 301 of the two sets of diagonally arranged suspension bushings 3. The diagonally arranged elastic buffers 4 abut against the connecting bracket 2, which can limit the torsion angle of the connecting bracket 2.

[0051] With such an arrangement, during actual use, the torsion limit of the connecting bracket 2 is the situation where the two diagonally arranged elastic buffer bodies 4 are completely compressed by the connecting bracket 2, which helps to reduce the torsion amplitude of the connecting bracket 2, and helps to prevent the suspension bushing 3 and the external connecting parts from loosening and making abnormal noises. In addition, the arrangement of the elastic buffer bodies 4 also makes the contact between the connecting bracket 2 and the structural body 1 smoother, which helps to reduce contact noise.

[0052] Of course, in this embodiment, two sleeves 5 are arranged at intervals on two opposite sides of the structural body 1, which is only a preferred embodiment. In addition, in other embodiments, the sleeves 5 can be set to other numbers, such as one, three, four, five, and six. Moreover, in specific implementation, the sleeves 5 on the two opposite sides can be arranged relative to each other or staggered. And elastic buffers can be provided on one or more of the multiple suspension bushings 3 on each side, which can ensure that there are at least two groups of diagonally arranged elastic buffers 4 and can limit the rotation range of the connecting bracket 2 relative to the structural body 1 in the left and right directions.

[0053] As a preferred embodiment, in this embodiment, the sleeve 5 is integrally cast with the structural body 1. By integrally casting the sleeve 5 with the structural body 1, the structure is simple, easy to process and manufacture, and also convenient for the assembly of the torsion suspension system. Figure 3As shown in the figure, in this embodiment, the rubber body 302 of the suspension bushing 3 includes a body part and a covering part 3021. The body part is connected between the inner core 301 and the outer tube 303 of the suspension bushing 3, the covering part 3021 covers the inner core 301, and the elastic buffer body 4 is interference-fitted on the covering part 3021.

[0054] It can be understood that in this embodiment, by making the rubber body 302 include a main body part and a covering part 3021, and making the covering part 3021 cover the inner core 301, it is beneficial to improve the connection strength between the rubber body 302 and the inner core 301, while making the elastic buffer body 4 interference fit on the covering part 3021, which is beneficial to improve the setting stability of the elastic buffer body 4 and prevent the elastic buffer body 4 from falling off from the inner core 301.

[0055] As a preferred embodiment, the elastic buffer body 4 of this embodiment may include a buffer pad made of rubber. In this way, the structure is simple, the cost is low, and it is easy to set up and implement. In addition, as a preferred embodiment, Figure 1 and Figure 3 As shown in FIG. 1 , in this embodiment, the structural body 1 includes two side plates 101 arranged opposite to each other, and a bottom plate 102 connected between the side plates 101. The suspension bushings 3 on both sides are arranged on the side plates 101 on the corresponding sides.

[0056] It can be understood that by making the structural body 1 include two side panels 101 arranged opposite to each other and a bottom plate 102 connected between the two side panels 101, the structure is simple and easy to manufacture, while making it easy for the structural body 1 to have better structural strength and also facilitate the setting of the suspension bushing 3.

[0057] In addition, as preferably, Figure 1 As shown in FIG. 1 , in this embodiment, a through hole 7 is further provided on the bottom plate 102, and the bracket body can be exposed in the through hole 7, so that the posture of the connecting bracket 2 can be observed during assembly and vehicle road testing. In a specific implementation, the through hole 7 can be provided between two sleeves 5 arranged at intervals and be in a long strip shape, so as to better observe the posture of the connecting bracket 2.

[0058] As a preferred implementation method, Figure 1 and Figure 2 As shown in FIG. 1 , one end of the bottom plate 102 has a protruding portion protruding outward relative to the side plate 101, and the structural body 1 is connected to the sub-frame via the protruding portion 6. The protruding portion 6 facilitates the connection between the structural body 1 and the sub-frame, prevents the sub-frame from interfering with the connecting bracket 2, and facilitates the connection operation between the sub-frame and the connecting bracket 2 by providing sufficient operating space, which is convenient for operation.

[0059] As a preferred example, Figure 1As shown in the figure, in this embodiment, the connecting bracket 2 is plate-shaped and includes a main body 201 and a connecting part 202. The main body 201 is disposed between the side plates 101 on both sides and connected to the inner core 301. The connecting part 202 protrudes toward the other end of the side plate 101 relative to the protruding part 6, and the connecting part 202 is used to connect to the power assembly. By making the connecting bracket 2 include the main body 201 and the connecting part 202, the structure is simple and the connection with the power assembly and the structural body 1 is convenient.

[0060] To facilitate the connection between the protruding portion 6 and the sub-frame, and the connection between the connecting portion 202 and the powertrain, as a preferred implementation, in this embodiment, a first connecting hole 8 is provided on the protruding portion 6, and the structural body 1 is connected to the sub-frame via an external connecting member penetrating through the first connecting hole 8. A second connecting hole 9 is provided on the connecting portion 202, and the connecting bracket 2 is connected to the powertrain via an external connecting member penetrating through the second connecting hole 9.

[0061] It should be noted that the external connecting members inserted into the first connecting hole 8 and the second connecting hole 9 can be bolts commonly used in the prior art, and the connecting structure is relatively simple and the connecting operation is convenient. In addition, three second connecting holes 9 can be provided on the connecting portion 202, so that the connecting portion 202 and the power assembly can be connected by three bolts, and the three bolts can be arranged in a triangle, so as to improve the connection strength between the connecting portion 202 and the power assembly and ensure the connection effect between the connecting portion 202 and the power assembly.

[0062] Of course, in this embodiment, the first connection hole 8 for connecting with the sub-frame is provided on the protruding portion 6, and the second connection hole 9 for connecting with the powertrain is provided on the connecting portion 202, so that the protruding portion 6 and the sub-frame, and the connecting portion 202 and the powertrain are connected through external connecting parts, which is only a preferred embodiment. In addition, in other embodiments, the protruding portion 6 and the sub-frame, or the connecting portion 202 and the powertrain, can also be connected through other commonly used connection methods in the prior art, such as welding.

[0063] The torsion-resistant suspension system of this embodiment is provided with oppositely arranged suspension bushings 3 on two opposite sides of the structural body 1, and an elastic buffer body 4 capable of abutting against the connecting bracket 2 is sleeved on the inner core 301 of each suspension bushing 3, so that the torsion-resistant suspension system has the ability to bear a large torque of the powertrain, and can better prevent the problem of the suspension bushing 3 and the external connecting parts from loosening. The structural body 1 includes two oppositely arranged side plates 101 and a bottom plate 102 connected between the two side plates 101, and the connecting bracket 2 is plate-shaped and has a main body portion 201 and a connecting portion 202, which has a simple structure and is easy to design and implement.

[0064] Embodiment 2

[0065] This embodiment relates to a vehicle, on which the torsional suspension system of the first embodiment is provided.

[0066] The vehicle of this embodiment has the same technical effect as the torsional suspension system of the first embodiment compared with the prior art, and will not be described in detail here.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A torsional suspension system, characterized in that: It comprises a structural body (1) and a connecting bracket (2) connected to the structural body (1); The structural body (1) is used to be connected to the sub-frame, and two opposite sides of the structural body (1) are respectively provided with suspension bushings (3), and an elastic buffer body (4) is sleeved on the inner core (301) of the suspension bushing (3) on each side; The connecting bracket (2) is used to be connected to the powertrain, and the connecting bracket (2) is arranged between the inner cores (301) on both sides and is connected to each inner core (301) via an external connecting piece. The elastic buffer body (4) can abut against the connecting bracket (2) to limit the torsion angle of the connecting bracket (2).

2. The torsion mount system according to claim 1, characterized in that: Two opposite sides of the structural body (1) are respectively provided with sleeves (5); The suspension bushing (3) on each side is interference-pressed into the sleeve (5) on the corresponding side, and the elastic buffer body (4) on each side abuts against the sleeve (5) on the corresponding side.

3. The torsion mount system according to claim 2, characterized in that: Two sleeves (5) are arranged at intervals on two opposite sides of the structural body (1), the suspension bushings (3) are arranged one-to-one with the sleeves (5), and an elastic buffer body (4) is sleeved on at least the inner core (301) of the diagonally arranged suspension bushing (3); The elastic buffer body (4) disposed diagonally abuts against the connecting bracket (2), and can limit the torsion angle of the connecting bracket (2).

4. The torsional suspension system according to claim 2, characterized in that: The sleeve (5) and the structural body (1) are integrally cast.

5. The torsion suspension system according to claim 1, characterized in that: The rubber body (302) of the suspension bushing (3) comprises a main body portion and a covering portion (3021); The main body portion is connected between the inner core (301) and the outer tube (303) of the suspension bushing (3), the covering portion (3021) covers the inner core (301), and the elastic buffer body (4) is interference-fitted on the covering portion (3021).

6. The torsion mount system according to any one of claims 1 to 5, characterized in that: The structural body (1) comprises two side plates (101) arranged opposite to each other, and a bottom plate (102) connected between the side plates (101) at both sides; The suspension bushings (3) on both sides are arranged on the side plates (101) on the corresponding sides.

7. The torsional suspension system according to claim 6, characterized in that: One end of the bottom plate (102) has a protruding portion (6) protruding outward relative to the side plate (101); The structural body (1) is connected to the sub-frame via the protruding portion (6).

8. The torsional suspension system according to claim 7, characterized in that: The connecting bracket (2) is plate-shaped and comprises a main body portion (201) and a connecting portion (202); The main body portion (201) is disposed between the side panels (101) at both sides and is connected to the inner core (301); the connecting portion (202) protrudes toward the other end of the side panel (101) relative to the protruding portion (6); and the connecting portion (202) is used to be connected to the power assembly.

9. The torsional suspension system according to claim 8, characterized in that: The protruding portion (6) is provided with a first connecting hole (8), and the structural body (1) is connected to the sub-frame via an external connecting member passing through the first connecting hole (8); and / or, The connecting portion (202) is provided with a second connecting hole (9), and the connecting bracket (2) is connected to the power assembly via an external connecting piece passing through the second connecting hole (9).

10. A vehicle, characterized in that: The vehicle is provided with a torsional suspension system according to any one of claims 1 to 9.

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