Rear suspension integrated structure and vehicle

Abstract

The utility model provides a rear suspension integrated structure and a vehicle, and belongs to the technical field of automobile accessories, the rear suspension integrated structure is applied to connection of an auxiliary frame and a transmission of the vehicle, the rear suspension integrated structure comprises a pull rod assembly and a connecting part, and the pull rod assembly comprises a pull rod body and a shaft sleeve assembly connected to one end of the pull rod body; the shaft sleeve assembly is installed in the shaft sleeve framework, the connecting part and the shaft sleeve framework are integrally formed, and the connecting part is connected with the transmission. According to the rear suspension integrated structure, the connecting part used for being connected with the transmission and the shaft sleeve framework are integrally formed, integration of the connecting part and the pull rod assembly is achieved, a rear suspension support independently designed in the prior art is omitted, the number of parts is reduced, the rear suspension structure is simplified, and the production process is simplified; the purpose of reducing cost and weight is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to a rear suspension integrated structure and a vehicle. Background Art

[0002] In recent years, competition in the automotive industry has become increasingly fierce. In order to enhance product competitiveness, major OEMs have continuously improved the quality of their vehicles. At present, the left and right engine mounts of mid- and high-end passenger car models mostly use hydraulic forms, and the rear mounts mostly use tie-rod rubber structures to improve the driving comfort of the vehicle.

[0003] At present, the pull-rod type rubber rear suspension is widely used due to its simple structure and mature technology.

[0004] In the related art, the large bushing end of the pull-rod type rubber rear suspension structure is connected to the vehicle's subframe, and the small bushing end is installed with a rear suspension bracket, which is connected to the transmission in the powertrain through the rear suspension bracket. The structure and production process are relatively complex and the cost is relatively high. Utility Model Content

[0005] In view of this, the present application aims to propose a rear suspension integrated structure to solve the problems of complex rear suspension structure and production process and high cost in the prior art.

[0006] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0007] A rear suspension integrated structure is used for connecting a vehicle's subframe with a transmission, comprising: a tie rod assembly and a connecting portion, wherein the tie rod assembly comprises a tie rod body and a shaft sleeve assembly connected to one end of the tie rod body, the shaft sleeve assembly is installed in a shaft sleeve frame, the connecting portion is integrally formed with the shaft sleeve frame, and the connecting portion is connected to the transmission.

[0008] Through the above technical solution, the connecting part and the shaft sleeve frame are integrally formed, which is easy to process, realizes the integration of the transmission connecting part and the pull rod assembly, eliminates the separately designed rear suspension bracket, reduces the number of parts, simplifies the structure, and achieves the purpose of reducing weight and cost.

[0009] Furthermore, a first sleeve assembly is provided at one end of the pull rod body, and a second sleeve assembly is provided at the other end; the first sleeve assembly is installed in the first frame, the connecting portion is integrally formed with the first frame, and the second sleeve assembly is connected to the sub-frame.

[0010] Through the above technical solution, the connecting part is integrally formed with the first frame, so that the connecting part is integrated at one end of the first sleeve assembly for connecting the transmission, and the second sleeve assembly is used to connect the subframe, thereby realizing the connection between the vehicle powertrain and the subframe.

[0011] Furthermore, a first sleeve assembly is provided at one end of the pull rod body, and a second sleeve assembly is provided at the other end; the second sleeve assembly is installed in the second frame, the connecting portion is integrally formed with the second frame, and the first sleeve assembly is connected to the sub-frame.

[0012] Through the above technical solution, the connecting part is integrally formed with the second frame, so that the connecting part is integrated at one end of the second sleeve assembly for connecting the transmission, and the first sleeve assembly is used to connect the subframe, thereby realizing the connection between the vehicle powertrain and the subframe.

[0013] Furthermore, the outer circumference size of the second shaft sleeve assembly is smaller than the outer circumference size of the first shaft sleeve assembly.

[0014] Through the above technical solution, the connection method between the rear suspension integrated structure and the subframe is adjusted, and the second shaft sleeve assembly with a smaller size is connected to the subframe, which reduces the connection size between the rear suspension structure and the subframe, thereby reducing the space required for matching and making the layout more convenient.

[0015] Furthermore, a first mounting hole is provided on the connecting portion, and the connecting portion is connected to the transmission via a first connecting member.

[0016] Through the above technical solution, the connection between the connecting part and the transmission is achieved by providing the first mounting hole and cooperating with the first connecting member.

[0017] Optionally, the number of the first mounting holes is set to three, and the connecting lines between the three first mounting holes form a triangle.

[0018] Through the above technical solution, the number of the first mounting holes is set to three, and the connecting lines between the three fixed points form a triangular structure, which ensures the balance and stability of the connection.

[0019] Furthermore, the first sleeve assembly also includes an inner core arranged inside the first frame, a through hole is arranged inside the inner core, and the inner core is connected to the first frame via a first rubber body.

[0020] Furthermore, the pull rod body includes a first connecting end and a second connecting end which are vertically arranged, the first connecting end is installed in the inner core, a second mounting hole is opened on the second connecting end, and the second bushing assembly is installed in the second mounting hole.

[0021] Through the above technical scheme, the first connecting end is used to connect the first sleeve assembly, and the first connecting end is installed in the through hole of the inner core to realize the connection between the pull rod body and the first sleeve assembly; a second mounting hole is opened in the second connecting end, and the second sleeve assembly is installed in the second mounting hole to realize the connection between the pull rod body and the second sleeve assembly.

[0022] Furthermore, the second bushing assembly includes an inner tube and a second rubber body arranged on the outer periphery of the inner tube, and the second rubber body is connected between the second mounting hole and the inner tube.

[0023] Compared with the prior art, the rear suspension integrated structure described in this application has the following advantages:

[0024] (1) The rear suspension integrated structure described in the present application comprises a tie rod assembly and a connecting portion, wherein the tie rod assembly comprises a tie rod body and a sleeve assembly connected to one end of the tie rod body, wherein the sleeve assembly is installed in a sleeve frame, wherein the connecting portion is integrally formed with the sleeve frame, and wherein the connecting portion is connected to the transmission; the present application realizes the integration of the connecting portion and the tie rod assembly by integrally forming the connecting portion for connecting the transmission with the sleeve frame, thereby eliminating the rear suspension bracket separately designed in the prior art, reducing the number of parts, simplifying the rear suspension structure, simplifying the production process, and reducing the production cost.

[0025] (2) The rear suspension integrated structure described in the present application has a first sleeve assembly at one end of the pull rod body and a second sleeve assembly at the other end; the first sleeve assembly is installed in the first frame, the connecting portion is integrally formed with the first frame, and the second sleeve assembly is connected to the subframe; the outer circumference of the second sleeve assembly is smaller than the outer circumference of the first sleeve assembly. The present application adjusts the connection method between the sleeve assembly and the subframe to connect the smaller second sleeve assembly to the subframe, thereby reducing the connection size between the rear suspension structure and the subframe, reducing the matching space, and making the layout more convenient.

[0026] Another object of the present application is to provide a vehicle, comprising the rear suspension integrated structure as described above.

[0027] The advantages of the vehicle and the above-mentioned rear suspension integrated structure over the prior art are the same, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 It is a structural schematic diagram of the rear suspension integrated structure described in an embodiment of the present application;

[0030] Figure 2 It is an exploded schematic diagram of the rear suspension integrated structure described in the embodiment of the present application;

[0031] Figure 3It is a structural schematic diagram of the connection part and the first frame in the rear suspension integrated structure described in an embodiment of the present application;

[0032] Figure 4 It is a structural schematic diagram of the connecting part, the first frame and the first sleeve assembly in the rear suspension integrated structure described in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Pull rod body; 11. First connecting end; 12. Second connecting end; 121. Second mounting hole; 2. Connecting portion; 21. First mounting hole; 3. First skeleton; 4. First bushing assembly; 41. Inner core; 42. First rubber body; 5. Second bushing assembly; 51. Inner tube; 52. Second rubber body. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0036] In addition, the directions or positional relationships indicated by "inside", "outside", "left", "right", etc. mentioned in the embodiments of the present application are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, relational terms such as "first" and "second" are merely used to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities, nor can they be understood as indicating or implying relative importance.

[0037] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] In the related art, the pull-rod type rubber rear suspension structure includes a large bushing end and a small bushing end, wherein the large bushing end is connected to the subframe of the vehicle, and the small bushing end is equipped with a rear suspension bracket, which is connected to the transmission in the powertrain through the rear suspension bracket. The entire rear suspension structure and production process are relatively complex and costly; in addition, the large bushing end is large in size and volume, and requires a large space to cooperate with the subframe, making it difficult to arrange.

[0039] In view of this, an embodiment of the present application proposes a rear suspension integrated structure.

[0040] See also Figure 1A rear suspension integrated structure is used for connecting a vehicle subframe with a transmission, comprising: a tie rod assembly and a connecting portion 2, wherein the tie rod assembly comprises a tie rod body 1 and a sleeve assembly connected to one end of the tie rod body 1, the sleeve assembly is installed in a sleeve frame, the connecting portion 2 is integrally formed with the sleeve frame, and the connecting portion 2 is connected to the transmission.

[0041] Specifically, the tie rod assembly includes a tie rod body 1, a sleeve assembly is arranged at the end of the tie rod body 1, a sleeve frame is used to install the sleeve assembly, and a connecting portion 2 is arranged on the sleeve frame for connecting with the transmission. The connecting portion 2 is integrally formed with the sleeve frame, which is easy to process, realizes the integration of the transmission connector and the tie rod assembly, cancels the rear suspension bracket designed separately in the related art, reduces the number of parts, simplifies the structure, and achieves the purpose of reducing weight and cost.

[0042] Furthermore, a first sleeve assembly 4 is provided at one end of the tie rod body 1, and a second sleeve assembly 5 is provided at the other end; the first sleeve assembly 4 is installed in the first skeleton 3, the connecting part 2 is integrally formed with the first skeleton 3, and the second sleeve assembly 5 is connected to the sub-frame.

[0043] Specifically, both ends of the pull rod body 1 are provided with a sleeve assembly, namely a first sleeve assembly 4 and a second sleeve assembly 5. Figure 2 As shown, the first sleeve assembly 4 is installed in the first skeleton 3, and one end of the tie rod body 1 is connected to the first sleeve assembly 4; the second sleeve assembly 5 is installed in the second skeleton, and the second skeleton is a part of the tie rod body 1, and is located at one end of the tie rod body 1 away from the first sleeve assembly 4, thereby realizing the setting of the second sleeve assembly 5 at the end of the tie rod body 1.

[0044] See also Figure 3 In an optional embodiment, the connection part 2 is integrated at one end of the first sleeve assembly 4, and the connection part 2 is integrally formed with the first frame 3. The connection part 2 is used to connect the transmission, and the second sleeve assembly 5 is used to connect the subframe, that is, one end of the first sleeve assembly 4 of the rear suspension integrated structure is connected to the transmission, and one end of the second sleeve assembly 5 of the rear suspension integrated structure is connected to the subframe, so as to realize the connection between the vehicle powertrain and the subframe.

[0045] In actual production, the connection portion 2 and the first frame 3 may be integrally formed by die-casting.

[0046] Die casting is a precision casting method that uses high pressure to force molten metal into a complex-shaped metal mold. It has the characteristics of high pressure and high speed. The castings produced by die casting have small dimensional tolerances, high surface accuracy, and higher tensile strength than ordinary casting alloys. It is very suitable for mass production of parts with high strength and impact resistance requirements such as automobile frames.

[0047] The material of the connecting part 2 and the first frame 3 can be aluminum, which is light, stable, corrosion-resistant, mechanically sound, easy to process, and low in cost. The die-casting method is simple in process and is conducive to improving production efficiency.

[0048] Optionally, a first sleeve assembly 4 is provided at one end of the tie rod body 1, and a second sleeve assembly 5 is provided at the other end; the second sleeve assembly 5 is installed in the second frame, the connecting part 2 is integrally formed with the second frame, and the first sleeve assembly 4 is connected to the sub-frame.

[0049] In another optional embodiment, the connecting portion 2 can also be integrated at one end of the second sleeve assembly 5, and the connecting portion 2 is integrally formed with the second frame. The connecting portion 2 is used to connect the transmission, and the first sleeve assembly 4 is used to connect the subframe, that is, one end of the second sleeve assembly 5 of the rear suspension integrated structure is connected to the transmission, and one end of the first sleeve assembly 4 of the rear suspension integrated structure is connected to the subframe, so as to realize the connection between the vehicle powertrain and the subframe.

[0050] Furthermore, the outer circumference size of the second shaft sleeve assembly 5 is smaller than the outer circumference size of the first shaft sleeve assembly 4 .

[0051] like Figure 1 As shown, in this embodiment, the outer circumferential size of the second sleeve assembly 5 is smaller than the outer circumferential size of the first sleeve assembly 4, the connecting portion 2 is integrated at one end of the first sleeve assembly 4, the connecting portion 2 is connected to the transmission, and the second sleeve assembly 5 is connected to the subframe, so that the large sleeve end of the rear suspension integrated structure is connected to the transmission, and the small sleeve end is connected to the subframe.

[0052] Conventional tie rod suspension structures usually have a small sleeve end connected to the transmission and a large sleeve end connected to the subframe. Since the large sleeve end is large in size and volume, it requires a large space to cooperate with the subframe, so it is difficult to arrange. However, the embodiment of the present application adjusts the connection method between the rear suspension integrated structure and the subframe, connects the smaller second sleeve assembly 5 to the subframe, reduces the connection size between the rear suspension structure and the subframe, and further reduces the space required for cooperation, making the arrangement more convenient.

[0053] Furthermore, a first mounting hole 21 is provided on the connecting portion 2, and the connecting portion 2 is connected to the transmission via a first connecting member.

[0054] Specifically, the first connecting member is a first bolt, and the first mounting hole 21 is used to pass the first bolt. The connecting part 2 can be connected and locked to the transmission through the first bolt.

[0055] Optionally, the number of the first mounting holes 21 is set to three, and the connecting lines between the three first mounting holes 21 form a triangle.

[0056] See also Figure 3 The number of the first mounting holes 21 is set to three, and the three first mounting holes 21 are not collinear, so that the lines between the three fixed points form a triangular structure, which ensures the balance and stability of the connection. During installation, a first bolt is installed in each first mounting hole 21 to connect and lock the connecting part 2 with the transmission, thereby ensuring the connection stability between the rear suspension integrated structure and the transmission.

[0057] Furthermore, the first sleeve assembly 4 further includes an inner core 41 disposed inside the first frame 3 . A through hole is disposed inside the inner core 41 . The inner core 41 is connected to the first frame 3 via a first rubber body 42 .

[0058] See also Figure 4 The first sleeve assembly 4 further includes an inner core 41, which is disposed inside the first frame 3. The inner core 41 and the first frame 3 are connected via a first rubber body 42. A through hole is provided inside the inner core 41, and one end of the pull rod body 1 penetrates through the through hole of the inner core 41 to be connected to the first sleeve assembly 4. Specifically, the first frame 3 and the inner core 41 can be vulcanized together using the first rubber body 42 through a vulcanization process, so as to play a role in buffering and shock absorption during vehicle driving.

[0059] Furthermore, the pull rod body 1 includes a first connecting end 11 and a second connecting end 12 which are vertically arranged. The first connecting end 11 is installed in the inner core 41 . The second connecting end 12 is provided with a second mounting hole 121 . The second bushing assembly 5 is installed in the second mounting hole 121 .

[0060] For details, see Figure 2 The pull rod body 1 is L-shaped and has two connecting ends arranged perpendicular to each other, namely, a first connecting end 11 and a second connecting end 12. The first connecting end 11 is used to connect the first sleeve assembly 4. The cross-sectional shape of the first connecting end 11 matches the through-hole shape of the inner core 41. The first connecting end 11 can be pressed into the through-hole of the inner core 41 by a press-fitting process to achieve the connection between the pull rod body 1 and the first sleeve assembly 4. The second connecting end 12 is located at the end away from the first sleeve assembly 4. A second mounting hole 121 is provided in the second connecting end 12. The second sleeve assembly 5 can be pressed into the second mounting hole 121 by a press-fitting process to achieve the connection between the pull rod body 1 and the second sleeve assembly 5.

[0061] The press-fitting process is a process of compressing or fixing an object on another object by mechanical force or hydraulic force, which can be used to manufacture parts, assemble workpieces and reinforce structures. The press-fitting process can complete the assembly task quickly and accurately, and the equipment and tools required are relatively simple and low-cost. Therefore, the press-fitting process is used to realize the connection between the pull rod body 1 and the first sleeve assembly 4, and the pull rod body 1 and the second sleeve assembly 5, which is conducive to saving manpower and time costs.

[0062] Furthermore, the second bushing assembly 5 includes an inner tube 51 and a second rubber body 52 disposed on the outer periphery of the inner tube 51 , and the second rubber body 52 is connected between the second mounting hole 121 and the inner tube 51 .

[0063] like Figure 2 As shown, the second sleeve assembly 5 includes an inner tube 51 and a second rubber body 52. ​​The second rubber body 52 can be connected to the outer periphery of the inner tube 51 by vulcanization, which can provide a buffering and shock-absorbing effect during the vehicle driving process. Then, the second sleeve assembly 5 is pressed into the second mounting hole 121 by a press-fitting process, so that the outer wall of the second rubber body 52 is in close contact with the inner wall of the second mounting hole 121. The inner tube 51 is hollow. When connecting the subframe, a second bolt can be used to pass through the inner tube 51 to connect and lock the second sleeve assembly 5 with the subframe, thereby realizing the connection between the rear suspension integrated structure and the subframe.

[0064] The rear suspension integrated structure provided in the embodiment of the present application adopts an integrated structural design. By integrally forming the connecting part 2 for connecting the transmission with the bushing frame, the connecting part 2 and the pull rod assembly are integrated, the rear suspension bracket designed separately in the prior art is eliminated, the number of parts is reduced, the overall weight is reduced, the production process and assembly process are simplified, the production and development costs are reduced, and the structure is simple, easy to implement, and highly adaptable. At the same time, by adjusting the connection method between the bushing assembly and the sub-frame, the second bushing assembly 5 with a smaller size and volume is connected to the sub-frame, thereby reducing the matching space between the rear suspension structure and the sub-frame, making the layout more convenient.

[0065] An embodiment of the present application further provides a vehicle, comprising the rear suspension integrated structure as described above.

[0066] The advantages of the vehicle and the above-mentioned rear suspension integrated structure over the prior art are the same, which will not be described in detail here.

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

Claims

1. A rear suspension integrated structure, applied to the connection between a vehicle subframe and a transmission, characterized in that: include: A tie rod assembly and a connecting portion (2), wherein the tie rod assembly comprises a tie rod body (1) and a shaft sleeve assembly connected to one end of the tie rod body (1), the shaft sleeve assembly is installed in a shaft sleeve frame, the connecting portion (2) is integrally formed with the shaft sleeve frame, and the connecting portion (2) is connected to the transmission.

2. The rear suspension integrated structure according to claim 1, characterized in that: A first shaft sleeve assembly (4) is provided at one end of the pull rod body (1), and a second shaft sleeve assembly (5) is provided at the other end; the first shaft sleeve assembly (4) is installed in the first frame (3), the connecting portion (2) and the first frame (3) are integrally formed, and the second shaft sleeve assembly (5) is connected to the sub-frame.

3. The rear suspension integrated structure according to claim 1, characterized in that: A first shaft sleeve assembly (4) is provided at one end of the pull rod body (1), and a second shaft sleeve assembly (5) is provided at the other end; the second shaft sleeve assembly (5) is installed in a second frame, the connecting portion (2) is integrally formed with the second frame, and the first shaft sleeve assembly (4) is connected to the sub-frame.

4. The rear suspension integrated structure according to claim 2, characterized in that: The outer circumference size of the second shaft sleeve assembly (5) is smaller than the outer circumference size of the first shaft sleeve assembly (4).

5. The rear suspension integrated structure according to claim 2, characterized in that: The connecting portion (2) is provided with a first mounting hole (21), and the connecting portion (2) is connected to the transmission via a first connecting member.

6. The rear suspension integrated structure according to claim 5, characterized in that: The number of the first mounting holes (21) is set to three, and the connecting lines between the three first mounting holes (21) form a triangle.

7. The rear suspension integrated structure according to claim 2, characterized in that: The first sleeve assembly (4) further comprises an inner core (41) arranged inside the first frame (3); a through hole is arranged inside the inner core (41); and the inner core (41) is connected to the first frame (3) via a first rubber body (42).

8. The rear suspension integrated structure according to claim 7, characterized in that: The pull rod body (1) comprises a first connecting end (11) and a second connecting end (12) which are vertically arranged, wherein the first connecting end (11) is installed in the inner core (41), and a second mounting hole (121) is provided on the second connecting end (12), and the second bushing assembly (5) is installed in the second mounting hole (121).

9. The rear suspension integrated structure according to claim 8, characterized in that: The second bushing assembly (5) comprises an inner tube (51) and a second rubber body (52) arranged on the outer periphery of the inner tube (51); the second rubber body (52) is connected between the second mounting hole (121) and the inner tube (51).

10. A vehicle, characterized in that: The invention comprises a rear suspension integrated structure as claimed in any one of claims 1 to 9.

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