Integrated rear suspension sliding column mounting structure and vehicle

Abstract

The utility model provides an integrated rear suspension sliding column mounting structure and a vehicle, and belongs to the technical field of vehicles. The mounting structure comprises a rear suspension sliding column mounting upper plate and a rear suspension sliding column mounting lower plate; one side of the rear suspension sliding column mounting upper plate and one side of the rear suspension sliding column mounting lower plate are connected with the rear wheel cover inner plate; the rear suspension sliding column mounting upper plate is fixedly connected above the rear suspension sliding column mounting lower plate, and a cavity is formed between the rear suspension sliding column mounting lower plate and the rear suspension sliding column mounting upper plate; and the rear suspension sliding column mounting upper plate is connected with the rear girder. Compared with a traditional single plate structure, the strength and rigidity of a rear suspension sliding column installation point area are effectively improved; and the rear suspension sliding column mounting point moves downwards to be close to the position of the rear crossbeam, so that the structural integrity of the rear suspension sliding column mounting point area is ensured, and the stress concentration problem of the sliding column mounting point and the rear wheel cover area is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to an integrated rear suspension sliding column installation structure and a vehicle. Background Art

[0002] In the automobile structure, the rear suspension strut mounting structure is the main mounting hard point of the rear suspension, which mainly plays the role of force transmission and vibration reduction. The traditional rear suspension strut mounting structure is often designed at the upper end of the rear wheel cover. This structure has the following problems:

[0003] 1. The installation point of the sliding column is mainly designed at the upper end of the rear wheel cover, which is far away from the rear beam. The force at the installation point is not easy to be transmitted to the beam, which is easy to cause stress concentration at the thinner rear wheel cover, resulting in fatigue cracking and other problems;

[0004] 2. The installation point of the sliding column is a single-layer installation, and the dynamic stiffness and strength of the installation point area are weak;

[0005] 3. The upper reinforcement plate of the rear wheel cover inner panel extends to the rear wheel cover flange and stops, and the lower part is disconnected from the rear wheel cover support plate, which is not conducive to force transmission. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide an integrated rear suspension sliding column mounting structure and a vehicle, which solves the problem of weak rigidity and strength in the existing sliding column mounting point area.

[0007] The utility model is realized by the following technical solutions:

[0008] In a first aspect of the utility model, an integrated rear suspension strut mounting structure is provided, comprising a rear suspension strut mounting upper plate and a rear suspension strut mounting lower plate;

[0009] One side of the rear suspension strut mounting upper plate and the rear suspension strut mounting lower plate are both connected to the rear wheel housing inner plate;

[0010] The rear suspension strut mounting upper plate is fixedly connected to the upper part of the rear suspension strut mounting lower plate, and a cavity is formed between the rear suspension strut mounting lower plate and the rear suspension strut mounting upper plate;

[0011] The rear suspension sliding column mounting upper plate is connected to the rear beam.

[0012] The further improvement of the utility model is:

[0013] The rear suspension strut mounting upper plate comprises:

[0014] A first intermediate platform forms a rear suspension strut mounting platform;

[0015] A first upper connecting portion is formed by bending and extending upwardly from one side of the first intermediate platform close to the rear wheel housing inner plate, and the first upper connecting portion is fixedly connected to the rear wheel housing inner plate and the rear suspension strut mounting lower plate;

[0016] The first lower connecting portion is formed by bending and extending the remaining side edges of the first intermediate platform downward, and the first lower connecting portion is fixedly connected to the side surfaces of the rear suspension strut mounting lower plate and the rear beam.

[0017] The further improvement of the utility model is:

[0018] The outer contour of the first lower connecting portion is provided with an outwardly bent flange, and the flange is spot-welded to the bottom surface of the rear beam; the first lower connecting portion is spot-welded to the side surface of the rear beam.

[0019] The further improvement of the utility model is:

[0020] The rear suspension strut mounting lower plate comprises:

[0021] A second intermediate platform is disposed below the first intermediate platform, so that the cavity is formed between the first intermediate platform and the second intermediate platform;

[0022] A second upper connecting portion is formed by bending and extending upwardly from one side of the second intermediate platform corresponding to the first upper connecting portion, the second upper connecting portion is fixedly connected to the first upper connecting portion and the rear wheel housing inner plate, and the second upper connecting portion is sandwiched between the first upper connecting portion and the rear wheel housing inner plate;

[0023] The second lower connecting portion is formed by bending and extending the remaining side edges of the second intermediate platform downward, and the second lower connecting portion is fixedly connected to the first lower connecting portion.

[0024] The further improvement of the utility model is:

[0025] A plurality of mounting bolt holes are respectively provided at corresponding positions of the first intermediate platform and the second intermediate platform for mounting rear suspension struts.

[0026] The further improvement of the utility model is:

[0027] A cushion block is arranged in a cavity formed by the rear suspension strut mounting lower plate and the rear suspension strut mounting upper plate, and the cushion block is welded to the rear suspension strut mounting lower plate by double welding.

[0028] The further improvement of the utility model is:

[0029] The integrated rear suspension strut mounting structure also includes a rear wheel housing support plate, which is overlapped on the rear suspension strut mounting upper plate and connected to the rear floor crossbeam for force transmission.

[0030] The further improvement of the utility model is:

[0031] The rear wheel cover support plate includes a first rear wheel cover support plate and a second rear wheel cover support plate, the first rear wheel cover support plate and the second rear wheel cover support plate are spot welded together, and the upper ends of the first rear wheel cover support plate and the second rear wheel cover support plate are overlapped on the rear suspension slide column mounting plate, and the lower ends are overlapped on the rear floor cross beam.

[0032] The further improvement of the utility model is:

[0033] The integrated rear suspension strut mounting structure also includes a rear wheel housing inner panel reinforcement plate, which is overlapped on the side panel inner panel, the rear wheel housing inner panel and the rear wheel housing support plate in sequence from top to bottom.

[0034] A second aspect of the utility model provides a vehicle, comprising the integrated rear suspension strut mounting structure.

[0035] Compared with the prior art, the beneficial effects of the utility model are:

[0036] The utility model provides a rear suspension strut mounting upper plate and a rear suspension strut mounting lower plate, and the rear suspension strut mounting upper plate and the rear suspension strut mounting lower plate form a cavity, so that the rear suspension strut mounting lower plate and the rear suspension strut mounting upper plate form a box-shaped structure at the strut mounting point. Compared with the traditional single-plate structure, the Y-direction dynamic stiffness is increased by about 387%, and the Z-direction dynamic stiffness is increased by about 7.8%, which effectively improves the strength and stiffness of the rear suspension strut mounting point area. At the same time, a pad is provided in the cavity, which also improves the overall connectivity of the mounting point area.

[0037] The utility model connects the rear suspension strut mounting upper plate with the rear beam, moves the rear suspension strut mounting point downward and close to the rear beam, thereby ensuring the structural integrity of the rear suspension strut mounting point area; the flange design is conducive to force transmission at the rear suspension strut mounting point, avoids stress concentration at the mounting point, and reduces the stress of the inner plate of the rear wheel cover by 33%.

[0038] The utility model provides a rear wheel cover support plate and a rear wheel cover inner plate reinforcement plate, wherein the rear wheel cover support plate is overlapped on the rear suspension column mounting plate and connected to the rear floor beam for force transmission, and the rear wheel cover inner plate reinforcement plate is overlapped on the side inner plate, the rear wheel cover inner plate and the rear wheel cover support plate in sequence from top to bottom, so that the rear wheel cover inner plate reinforcement plate is connected with the rear wheel cover support plate to form a force transmission path, and then the rear wheel cover inner plate reinforcement plate, the rear wheel cover support plate, the rear floor beam, the side inner plate reinforcement plate and the top cover beam form a closed C ring, which ensures the consistency and integrity of the C ring, can effectively transmit and disperse the side collision energy, and improve the rear suspension column mounting point stiffness, body-in-white stiffness, modal and side collision performance. Compared with the traditional structure, the body-in-white stiffness is increased by 75%, the rear wheel cover support plate is heightened, and the force transmission is smooth. At the same time, because the rear wheel cover support plate is pressed on the rear suspension column mounting plate, the force transmission smoothness is improved, the stress concentration is effectively reduced, and the rear suspension column mounting point dynamic stiffness is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The utility model provides an integrated rear suspension sliding column installation structure diagram;

[0040] Figure 2 It is a cross-sectional view of an integrated rear suspension strut mounting structure provided by the utility model;

[0041] Figure 3 It is a schematic diagram of the structure of the upper plate of the rear suspension strut installation;

[0042] Figure 4 It is a schematic diagram of the structure of the lower plate of the rear suspension strut installation.

[0043] In the figure, 1, rear wheel housing inner panel reinforcement plate, 2, rear wheel housing inner panel, 3, rear wheel housing inner panel mounting lower plate, 3-1, second intermediate platform, 3-2, second upper connecting part, 3-3, second lower connecting part, 4, cushion block, 5, rear wheel housing slide column mounting upper plate, 5-1, first intermediate platform, 5-2, first upper connecting part, 5-3, first lower connecting part, 5-4, flange, 6, rear beam, 7, rear wheel housing support plate, 7-1, first rear wheel housing support plate, 7-2, second rear wheel housing support plate, 8, rear floor cross beam. DETAILED DESCRIPTION

[0044] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0045] The utility model provides an integrated rear suspension sliding column installation structure, such as Figure 1 and Figure 2 As shown, it includes a rear suspension strut mounting upper plate 5 and a rear suspension strut mounting lower plate 3;

[0046] One side of the rear suspension strut mounting upper plate 5 and the rear suspension strut mounting lower plate 3 are both connected to the rear wheel housing inner plate 2;

[0047] The rear suspension strut mounting upper plate 5 is fixedly connected to the upper part of the rear suspension strut mounting lower plate 3, and a cavity is formed between the rear suspension strut mounting lower plate 3 and the rear suspension strut mounting upper plate 5, so that the rear suspension strut mounting lower plate 3 and the rear suspension strut mounting upper plate 5 form a box-shaped structure at the strut mounting point, and compared with the traditional single-plate structure, the Y-direction dynamic stiffness is increased by about 387%, and the Z-direction dynamic stiffness is increased by about 7.8%;

[0048] The rear suspension strut mounting plate 5 is connected to the rear beam 6 .

[0049] As a preferred embodiment of the present invention, Figure 3 As shown, the rear suspension strut mounting upper plate 5 comprises:

[0050] The first intermediate platform 5-1 forms a rear suspension strut mounting platform;

[0051] A first upper connecting portion 5-2 is formed by bending and extending upwardly from one side of the first intermediate platform 5-1 close to the rear wheel housing inner plate 2, and the first upper connecting portion 5-1 is fixedly connected to the rear wheel housing inner plate 2 and the rear suspension strut mounting lower plate 3;

[0052] A first lower connecting portion 5-3 is formed by bending and extending the remaining side edges of the first intermediate platform 5-1 downward, and the first lower connecting portion 5-3 is fixedly connected to the side surfaces of the rear suspension strut mounting lower plate 3 and the rear beam 6;

[0053] The first lower connecting portion 5-3 is spot-welded to the side of the rear beam, and the outer contour of the first lower connecting portion 5-3 is provided with an outwardly bent flange 5-4, and the flange 5-4 is spot-welded to the bottom surface of the rear beam 6, wherein the width of the flange 5-4 can be reasonably selected.

[0054] In this way, the rear suspension strut mounting point is close to the rear beam 6, and the first lower connecting portion 5-3 and its flange 5-4 are directly fixedly connected to the rear beam 6, ensuring the structural integrity of the rear suspension strut mounting point area; the design of the flange 5-4 is conducive to the force transmission of the strut mounting point, avoiding stress concentration at the mounting point, and reducing the stress of the rear wheel cover inner panel 2 by 33%.

[0055] The rear suspension strut mounting plate 5 has a simple structure and high reliability, and the first intermediate platform 5 - 1 can be used to provide a rear suspension strut mounting point.

[0056] As a preferred embodiment of the present invention, Figure 4 As shown, the rear suspension strut mounting lower plate 3 includes:

[0057] The second intermediate platform 3-1 is arranged below the first intermediate platform 5-1, so that a cavity is formed between the first intermediate platform 5-2 and the second intermediate platform 3-1, thereby effectively improving the strength and rigidity of the rear suspension strut mounting point area, thereby improving the performance of the entire vehicle;

[0058] The second upper connecting portion 3-2 is formed by bending and extending one side of the second intermediate platform 3-1 corresponding to the first upper connecting portion 5-2 upward, the second upper connecting portion 3-2 is fixedly connected to the first upper connecting portion 5-3 and the rear wheel housing inner plate 2, and the second upper connecting portion 3-2 is sandwiched between the first upper connecting portion 5-2 and the rear wheel housing inner plate 2;

[0059] The second lower connection part 3-3 is formed by the remaining side edges of the second intermediate platform 3-1 being bent and extended downward. The second lower connection part 3-3 is fixedly connected to the first lower connection part 5-3 and is disposed on the inner side of the first lower connection part 5-3.

[0060] As a preferred embodiment of the present invention, a plurality of mounting bolt holes are respectively provided at corresponding positions of the first intermediate platform 5-1 and the second intermediate platform 3-1. Preferably, four mounting bolt holes are respectively provided at corresponding positions of the first intermediate platform 5-1 and the second intermediate platform 3-1 for installing the rear suspension strut. Compared with the traditional structure, the rear suspension strut mounting point of the present invention is located lower and closer to the rear beam 6. Since the outer contour of the first lower connecting portion 5-3 in the rear suspension strut mounting upper plate 5 is provided with an outwardly bent flange 5-4 and fixedly connected to the bottom surface of the rear beam 6, it is beneficial for the strut mounting point to transmit force to the rear beam 6, thereby improving the structural integrity and stability of the rear suspension strut mounting point area, and effectively solving the stress concentration problem of the strut mounting point and the rear wheel cover area. Compared with the traditional structure, the stress of the inner plate of the rear wheel cover is reduced from 198MPa to 133MPa.

[0061] At the same time, since the rear suspension strut mounting point is moved downward, the Y-direction dimension of the rear wheel arch inner panel can be reduced, thereby providing more space inside the vehicle.

[0062] As a preferred embodiment of the utility model, a pad 4 is arranged in the cavity formed by the rear suspension strut mounting lower plate 3 and the rear suspension strut mounting upper plate 5. The pad 4 is welded to the rear suspension strut mounting lower plate 3 by double shielding welding (carbon dioxide shielded welding), thereby improving the overall connectivity at the strut mounting point; at the same time, the strut mounting point is changed from the original traditional two-point installation to a multi-point installation, preferably a four-point installation, which is beneficial to the uniform distribution of force at the rear shock absorber mounting point and reduces stress concentration.

[0063] As a preferred embodiment of the utility model, the integrated rear suspension strut mounting structure further comprises a rear wheel housing support plate 7, the rear wheel housing support plate 7 is overlapped on the rear suspension strut mounting upper plate 5, and is connected to the rear floor cross beam 8 for force transmission.

[0064] The rear wheel cover support plate 7 includes a first rear wheel cover support plate 7-1 and a second rear wheel cover support plate 7-2, the first rear wheel cover support plate 7-1 and the second rear wheel cover support plate 7-2 are spot welded, and the upper ends of the first rear wheel cover support plate 7-1 and the second rear wheel cover support plate 7-2 are overlapped on the rear suspension slide column mounting plate 5, and the lower ends are overlapped on the rear floor cross beam 8, which solves the formability problem after the rear wheel cover support plate is raised. Preferably, the left rear wheel cover support plate and the right rear wheel cover support plate can also be of the same structure to reduce parts molds and reduce costs.

[0065] As a preferred embodiment of the utility model, the integrated rear suspension strut mounting structure further includes a rear wheel housing inner plate reinforcement plate 1, which is overlapped on the side inner plate, the rear wheel housing inner plate 2 and the rear wheel housing support plate 7 from top to bottom, so that the rear wheel housing inner plate reinforcement plate 1 is connected with the rear wheel housing support plate 7 to form a force transmission path, and then the rear wheel housing inner plate reinforcement plate 1, the rear wheel housing support plate 7, the rear floor cross beam 8, the side inner plate reinforcement plate and the top cover cross beam form a closed C ring, which ensures the consistency and integrity of the C ring, can effectively transmit and disperse the side collision energy, and improve the rear suspension strut mounting point stiffness, body-in-white stiffness, modal and side collision performance. Compared with the traditional structure, the body-in-white stiffness is increased by 75%, the rear wheel housing support plate is heightened, and the force transmission is smooth. At the same time, because the rear wheel housing support plate is pressed on the rear suspension strut mounting upper plate, the force transmission smoothness is improved, the stress concentration is effectively reduced, and the rear suspension strut mounting point dynamic stiffness is improved.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0068] The above technical solution is only one implementation method of the utility model. For technicians in this field, it is easy to make various types of improvements or modifications based on the principles disclosed in the utility model, and it is not limited to the technical solution described in the above specific embodiments of the utility model. Therefore, the above description is only preferred and does not have a restrictive meaning.

Claims

1. An integrated rear suspension strut mounting structure, characterized in that: It includes a rear suspension strut mounting upper plate and a rear suspension strut mounting lower plate; One side of the rear suspension strut mounting upper plate and the rear suspension strut mounting lower plate are both connected to the rear wheel housing inner plate; The rear suspension strut mounting upper plate is fixedly connected to the upper part of the rear suspension strut mounting lower plate, and a cavity is formed between the rear suspension strut mounting lower plate and the rear suspension strut mounting upper plate; The rear suspension sliding column mounting upper plate is connected to the rear beam.

2. The integrated rear suspension strut mounting structure according to claim 1, characterized in that: The rear suspension strut mounting upper plate comprises: A first intermediate platform forms a rear suspension strut mounting platform; A first upper connecting portion is formed by bending and extending upwardly from one side of the first intermediate platform close to the rear wheel housing inner plate, and the first upper connecting portion is fixedly connected to the rear wheel housing inner plate and the rear suspension strut mounting lower plate; The first lower connecting portion is formed by bending and extending the remaining side edges of the first intermediate platform downward, and the first lower connecting portion is fixedly connected to the side surfaces of the rear suspension strut mounting lower plate and the rear beam.

3. The integrated rear suspension strut mounting structure according to claim 2, characterized in that: The outer contour of the first lower connecting portion is provided with an outwardly bent flange, and the flange is spot-welded to the bottom surface of the rear beam; the first lower connecting portion is spot-welded to the side surface of the rear beam.

4. The integrated rear suspension strut mounting structure according to claim 2, characterized in that: The rear suspension strut mounting lower plate comprises: a second intermediate platform, disposed below the first intermediate platform, such that the cavity is formed between the first intermediate platform and the second intermediate platform; A second upper connecting portion is formed by bending and extending upwardly from one side of the second intermediate platform corresponding to the first upper connecting portion, the second upper connecting portion is fixedly connected to the first upper connecting portion and the rear wheel housing inner plate, and the second upper connecting portion is sandwiched between the first upper connecting portion and the rear wheel housing inner plate; The second lower connecting portion is formed by bending and extending the remaining side edges of the second intermediate platform downward, and the second lower connecting portion is fixedly connected to the first lower connecting portion.

5. The integrated rear suspension strut mounting structure according to claim 4, characterized in that: A plurality of mounting bolt holes are respectively arranged at corresponding positions of the first intermediate platform and the second intermediate platform for mounting rear suspension struts.

6. The integrated rear suspension strut mounting structure according to claim 1, characterized in that: A cushion block is arranged in a cavity formed by the rear suspension strut mounting lower plate and the rear suspension strut mounting upper plate, and the cushion block is welded to the rear suspension strut mounting lower plate by double welding.

7. The integrated rear suspension strut mounting structure according to claim 1, characterized in that: The integrated rear suspension strut mounting structure also includes a rear wheel housing support plate, which is overlapped on the rear suspension strut mounting upper plate and connected to the rear floor crossbeam for force transmission.

8. The integrated rear suspension strut mounting structure according to claim 7, characterized in that: The rear wheel cover support plate includes a first rear wheel cover support plate and a second rear wheel cover support plate, the first rear wheel cover support plate and the second rear wheel cover support plate are spot welded together, and the upper ends of the first rear wheel cover support plate and the second rear wheel cover support plate are overlapped on the rear suspension slide column mounting plate, and the lower ends are overlapped on the rear floor cross beam.

9. The integrated rear suspension strut mounting structure according to claim 7, characterized in that: The integrated rear suspension strut mounting structure also includes a rear wheel housing inner panel reinforcement plate, which is overlapped on the side panel inner panel, the rear wheel housing inner panel and the rear wheel housing support plate in sequence from top to bottom.

10. A vehicle, characterized in that: It comprises an integrated rear suspension strut mounting structure as described in any one of claims 1 to 9.

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