Suspension control arm, suspension system and vehicle

Abstract

The utility model provides a suspension control arm, a suspension system and a vehicle. The suspension control arm comprises a control arm body. An elastic buffer mechanism is arranged on the control arm body, the elastic buffer mechanism is used for abutting against a vehicle body under wheel jump excitation, and a connecting structure and a limiting structure are arranged between the elastic buffer mechanism and the control arm body; the elastic buffering mechanism is fixed to the control arm body through the connecting structure, and the limiting structure is used for limiting the elastic buffering mechanism when the elastic buffering mechanism is connected with the control arm body. According to the suspension control arm, the elastic buffering mechanism is arranged on the control arm body, the suspension control arm abuts against a vehicle body through the elastic buffering mechanism under wheel jump excitation, the overlarge wheel jump stroke can be limited, large wheel jump of wheels can be avoided, and therefore driving and riding comfort of a vehicle can be improved.

Description

Technical Field

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

[0002] Suspension is an important component of the vehicle's driving system. It directly affects the stability, operability and comfort of the vehicle. The suspension system mainly includes independent suspension, non-independent suspension and semi-independent suspension. The structural feature of the non-independent suspension system is that the wheels on both sides are connected by an integral frame, and the wheels together with the axle are connected under the frame through an elastic suspension system. The non-independent suspension system has the advantages of simple structure, low cost, high strength, easy maintenance, and small changes in the front wheel positioning during driving. However, the structural design of the control arm in the non-independent suspension of the prior art is not reasonable, resulting in the failure to limit the wheel when the wheel jumps, which is not conducive to improving the driving comfort of the vehicle. Utility Model Content

[0003] In view of this, the utility model aims to provide a suspension control arm to limit the wheel jump travel when the wheel jump is large, thereby improving the driving comfort of the vehicle.

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

[0005] A suspension control arm comprises a control arm body; an elastic buffer mechanism is provided on the control arm body, the elastic buffer mechanism is used to abut against a vehicle body under wheel hop excitation, and a connecting structure and a limiting structure are provided between the elastic buffer mechanism and the control arm body; the elastic buffer mechanism is fixed to the control arm body through the connecting structure, and the limiting structure is used to limit the elastic buffer mechanism when the elastic buffer mechanism is connected to the control arm body.

[0006] Furthermore, the control arm body includes a rod body and bushings arranged at both ends of the rod body, and the elastic buffer mechanism is arranged at one end of the rod body.

[0007] Furthermore, the elastic buffer mechanism includes a mounting base and an elastic buffer block arranged on the mounting base, and the connecting structure and the limiting structure are arranged between the mounting base and the rod body.

[0008] Furthermore, the mounting base is detachably fixed to the rod body via the connecting structure, and the limiting structure comprises a first limiting structure and a second limiting structure arranged between the mounting base and the rod body, and the first limiting structure and the second limiting structure have different limiting directions.

[0009] Furthermore, the connection structure adopts a screw connection structure, and the limiting directions of the first limiting structure and the second limiting structure are perpendicular.

[0010] Furthermore, the first limiting structure and the second limiting structure both include a limiting surface provided on the rod body, and a limiting flange provided on the mounting base; each limiting flange abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located on one side of the rod body, and the limiting surface in the second limiting structure is located at an end of the rod body.

[0011] Furthermore, the connection structure includes a threaded connection hole provided on each of the limiting surfaces, a connection through hole adapted to the threaded connection hole, provided on the corresponding limiting flange, and a bolt screwed into the threaded connection hole through the connection through hole.

[0012] Furthermore, the rod body is provided with a boss formed at one end of the elastic buffer mechanism, and the mounting base is fixed on the boss; and / or, in the thickness direction of the elastic buffer block, the cross-section of the elastic buffer block is gradually reduced along the direction away from the mounting base.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The suspension control arm described in the utility model, by arranging an elastic buffer mechanism on the control arm body, abuts against the vehicle body via the elastic buffer mechanism under wheel jump excitation, can limit the excessive wheel jump stroke, can avoid large wheel jump, and thus help to improve the driving comfort of the vehicle.

[0015] In addition, the control arm body is composed of a rod body and a bushing, which has a simple structure and is easy to design and manufacture. It is also convenient for the setting of an elastic buffer mechanism and reliable contact with the vehicle body. The buffer mechanism is composed of a mounting base and an elastic buffer block, which has a simple structure and is easy to design and prepare. The mounting base is detachable, which can facilitate the later maintenance and replacement of the elastic buffer mechanism and improve the maintenance economy of the vehicle. The limiting structure includes two limiting directions with different limiting directions, which can achieve a good limiting effect and help to better improve the convenience of the fixing operation of the mounting base, as well as the reliability of the fixing of the mounting base. The connection structure adopts a screw connection structure, which has a simple structure, is easy to connect and operate, and can ensure the reliability of the connection and fixation. The limiting directions of the first limiting structure and the second limiting structure are perpendicular, which is easy to design the two limiting structures and can also ensure the limiting effect.

[0016] In addition, the limiting structure is composed of an adaptive limiting surface and a limiting flange, which has a simple structure and is easy to design, helping to reduce the design and manufacturing costs of the control arm. The connection structure is integrated at the limiting structure, which can facilitate the setting of the connection structure, and can also make use of the difference in limiting directions between the two limiting structures to better ensure the stability of the connection of the connection structure. By forming a boss on the rod body, the mounting base is fixed on the boss, which helps to improve the reliability of the setting of the elastic buffer mechanism; the cross-section of the elastic buffer block is gradually reduced, so that when it abuts against the vehicle body, the impact force on the upper part with a smaller cross-section can be decomposed by the lower part with a larger cross-section. At the same time, the lower part with a larger cross-section can also increase the connection area between the elastic buffer block and the mounting base, which is beneficial to improving the buffering stability and the stability of the overall structure of the elastic buffer mechanism.

[0017] In addition, another object of the present invention is to provide a suspension system, which is a non-independent suspension system and is provided with the suspension control arm as described above.

[0018] The suspension system described in the utility model, by providing the suspension control arm as described above, is conducive to solving the problem of poor vehicle comfort caused by large wheel hop in the prior art, and has good practicality.

[0019] In addition, the utility model also provides a vehicle, in which the suspension system as described above is provided.

[0020] The vehicle described in the utility model is helpful to improve the driving comfort by providing the suspension system as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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:

[0022] Figure 1 It is a structural schematic diagram of the suspension control arm described in the first embodiment of the utility model at one viewing angle;

[0023] Figure 2 It is a structural schematic diagram of the suspension control arm according to the first embodiment of the utility model from another perspective;

[0024] Figure 3 It is a structural schematic diagram of the control arm body according to the first embodiment of the utility model at one viewing angle;

[0025] Figure 4 It is a structural schematic diagram of the control arm body according to the first embodiment of the utility model from another perspective;

[0026] Figure 5It is a structural schematic diagram of the elastic buffer mechanism described in the first embodiment of the utility model at one viewing angle;

[0027] Figure 6 It is a schematic structural diagram of the elastic buffer mechanism described in the first embodiment of the utility model from another perspective.

[0028] Description of reference numerals:

[0029] 2. Control arm body; 3. Elastic buffer mechanism;

[0030] 200, rod body; 201, connecting ring; 202, sleeve; 203, boss; 2031, inner part; 2032, outer part; 204, threaded connection hole; 205, first limiting surface; 2051, convex block; 206, second limiting surface; 207, weight reduction groove;

[0031] 301, mounting base; 3011, first limiting flange; 3012, second limiting flange; 3013, connecting through hole; 302, elastic buffer block; 303, notch; 304, bolt. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they 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, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] 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.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] Embodiment 1

[0037] The present embodiment relates to a suspension control arm, which is used to limit the wheel jump travel when the wheel jump is large, thereby improving the driving comfort of the vehicle.

[0038] In terms of overall structure, the suspension control arm includes a control arm body 2, on which an elastic buffer mechanism 3 is provided, which is used to abut against the vehicle body under wheel hop excitation, and a connection structure and a limiting structure are provided between the elastic buffer mechanism 3 and the control arm body 2. The elastic buffer mechanism 3 is fixed to the control arm body 2 through the connection structure, and the limiting structure is used to limit the elastic buffer mechanism 3 when the elastic buffer mechanism 3 is connected to the control arm body 2.

[0039] The suspension control arm of this embodiment, by arranging an elastic buffer mechanism 3 on the control arm body 2, abuts against the vehicle body via the elastic buffer mechanism 3 under wheel jump excitation, which can limit the excessive wheel jump stroke and avoid large wheel jump, thereby helping to improve the driving comfort of the vehicle.

[0040] Based on the above overall introduction, an exemplary structure of the suspension control arm described in this embodiment is as follows: Figure 1 and Figure 2 As shown in FIG. 1 , the structure of the control arm body 2 is first described. Figure 3 and Figure 4 As shown in , the control arm body 2 includes a rod body 200 and sleeves 202 disposed at both ends of the rod body 200, and the elastic buffer mechanism 3 is disposed at one end of the rod body 200. Here, the control arm body 2 is composed of the rod body 200 and the sleeve 202, and has a simple structure, which is convenient for design and manufacturing, and also convenient for the setting of the elastic buffer mechanism 3 and reliable contact with the vehicle body.

[0041] Specifically, connecting rings 201 are respectively provided at both ends of the rod body 200, and mounting holes for mounting the shaft sleeve 202 are respectively provided in each connecting ring 201, and the axis of the mounting hole is arranged perpendicular to the length direction of the rod body 200. The rod body 200 in this embodiment is preferably forged to have a higher structural strength and to improve assembly efficiency.

[0042] In addition, a weight-reducing structure may be provided on the rod body 200 to facilitate the lightening of the control arm body 2. Figure 3 and Figure 4 As shown in , the weight-reducing structure includes weight-reducing grooves 207 provided on both sides of the rod body 200 and extending along the length direction of the rod body 200. The weight-reducing grooves 207 have a simple structure, which is conducive to weight reduction while ensuring the structural strength of the rod body 200. Of course, in specific implementation, the position and shape of the weight-reducing structure can be adjusted according to the use requirements.

[0043] It is understandable that, in addition to the rod body 200, the control arm body 2 in this embodiment can also refer to the control arm structure in the existing suspension system. The main structure of the control arm body 2 can also be block-shaped, plate-shaped or other structural forms, as long as it meets the use requirements.

[0044] As a preferred embodiment, Figure 1 , Figure 5 and Figure 6 As shown in , the elastic buffer mechanism 3 in this embodiment includes a mounting base 301, and an elastic buffer block 302 arranged on the mounting base 301, and a connecting structure and a limiting structure are arranged between the mounting base 301 and the rod body 200. Here, the elastic buffer mechanism 3 is composed of the mounting base 301 and the elastic buffer block 302, and has a simple structure and is easy to design and prepare.

[0045] To facilitate the installation of the mounting base 301, Figure 4 and Figure 5 As shown in the figure, a boss 203 is formed on one end of the rod body 200 provided with the elastic buffer mechanism 3, and the mounting base 301 is fixed on the boss 203. By forming the boss 203 on the rod body 200, the mounting base 301 is fixed on the boss 203, which helps to improve the reliability of the setting of the elastic buffer mechanism 3.

[0046] Specifically, the boss 203 has an inner portion 2031 located on the side of the same-end connecting ring 201 facing the rod body 200, and an outer portion 2032 located outside the same-end connecting ring 201. The top of the boss 203 is a plane, and the main body of the mounting base 301 is a flat plate abutting against the plane on the top of the boss 203, which facilitates the installation of the mounting base 301 and even the elastic buffer mechanism 3 on the rod body 200.

[0047] In this embodiment, as a preferred connection method, the mounting base 301 is detachably fixed to the rod body 200 through a connecting structure, and the limiting structure includes a first limiting structure and a second limiting structure arranged between the mounting base 301 and the rod body 200, and the limiting directions of the first limiting structure and the second limiting structure are different.

[0048] Here, the mounting base 301 is detachable, which can facilitate the later maintenance and replacement of the elastic buffer mechanism 3, and can improve the maintenance economy of the vehicle. The limiting structure includes two limiting structures with different limiting directions, which can achieve a better limiting effect, help to better improve the convenience of the fixing operation of the mounting base 301, and can improve the reliability of the fixing of the mounting base 301.

[0049] In specific implementation, the connection structure adopts a screw connection structure, and the limiting directions of the first limiting structure and the second limiting structure are perpendicular. In this embodiment, the connection structure adopts a screw connection structure, which has a simple structure, is easy to connect and operate, and can ensure the reliability of connection and fixation. The limiting directions of the first limiting structure and the second limiting structure are perpendicular, which is easy to design the two limiting structures and can also ensure the limiting effect.

[0050] like Figures 3 to 6 As shown in , the first limiting structure and the second limiting structure in this embodiment both include a limiting surface provided on the rod body 200, and a limiting flange provided on the mounting base 301. Each limiting flange abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located at one side of the rod body 200, and the limiting surface in the second limiting structure is located at the end of the rod body 200. By making the limiting structure consist of the matching limiting surface and the limiting flange, the structure is simple, which is convenient for design and helps to reduce the design and manufacturing costs of the control arm.

[0051] For the convenience of describing this embodiment, the two limiting surfaces are respectively referred to as the first limiting surface 205 and the second limiting surface 206. The first limiting surface 205 is parallel to the length direction of the rod body 200, and the second limiting surface 206 is arranged orthogonally to the length direction of the rod body 200. Such an arrangement is conducive to ensuring that the limiting directions of the first limiting structure and the second limiting structure are perpendicular, and the limiting effect is good.

[0052] like Figure 5 and Figure 6 As shown in , the limiting flange in this embodiment includes a first limiting flange 3011 provided on one side of the mounting base 301 and overlapped on the first limiting surface 205, and a second limiting flange 3012 provided on the other side of the mounting base 301 and overlapped on the second limiting surface 206. Here, the first limiting structure and the second limiting structure are respectively provided at both ends of the mounting base 301 and between the boss 203, which is conducive to further improving the installation effect of the mounting base 301.

[0053] In order to facilitate the folding and forming of the first limiting flange 3011, a notch 303 is provided on the main body of the mounting base 301 near the root of the first limiting flange 3011. The notch 303 has a simple structure and is easy to process and form. It can be understood that the first limiting surface 205 can also be provided on the other side of the boss 203. In this case, it is sufficient to ensure that the position of the first limiting flange 3011 and the position of the first limiting surface 205 are consistent.

[0054] As a preferred embodiment, the connection structure includes a threaded connection hole 204 provided on each limiting surface, a connection through hole 3013 adapted to the threaded connection hole 204, provided on the corresponding limiting flange, and a bolt 304 screwed into the threaded connection hole 204 through the connection through hole 3013. The connection structure is integrated at the limiting structure, which can facilitate the setting of the connection structure, and can also make use of the difference in limiting directions between the two limiting structures to better ensure the stability of the connection of the connection structure.

[0055] As a preferred example, Figure 3 As shown in , in order to further improve the connection effect between the first limiting flange 3011 and the first limiting surface 205. Corresponding to the first limiting flange 3011, a protrusion 2051 can also be arranged on the boss 203, and the end surface of the protrusion 2051 constitutes the first limiting surface 205, and the threaded connection hole 204 is arranged through the protrusion 2051. The arrangement of the protrusion 2051 is conducive to improving the connection strength between the first limiting surface 205 and the first limiting flange 3011, and the structure of the protrusion 2051 is simple and easy to process and form.

[0056] It should be noted that, in addition to integrating the connection structure at the limiting structure, the connection structure can also be located at other positions of the mounting base 301, or a connection flange can be further provided on the mounting base 301, as long as it can achieve reliable fixation of the mounting base 301 on the rod body 200. In addition, in addition to the bolt 304 screw connection structure, the connection structure can also adopt other connection structures that meet the connection requirements.

[0057] In this embodiment, Figure 5 As shown in , in the thickness direction of the elastic buffer block 302, the cross section of the elastic buffer block 302 is gradually reduced in the direction away from the mounting base 301. The cross section of the elastic buffer block 302 is gradually reduced, so that when it abuts against the vehicle body, the impact force on the upper part with a smaller cross section can be decomposed by the lower part with a larger cross section. At the same time, the lower part with a larger cross section can also increase the connection area between the elastic buffer block 302 and the mounting base 301, which is conducive to improving the buffering stability and the stability of the overall structure of the elastic buffer mechanism 3.

[0058] In specific implementation, the elastic buffer block 302 can be connected to the mounting base 301 by vulcanization or bonding, and the elastic buffer block 302 can be made of a rubber material with suitable elasticity and good weather resistance and durability. It should be noted that in other implementation forms, for example, the elastic buffer mechanism 3 can also use an elastic buffer block 302 directly fixed to the rod body 200, in which case there is no need to set the mounting base 301, and it also has a good use effect.

[0059] The suspension control arm in this embodiment is provided with an elastic buffer mechanism 3 at one end of the rod body 200. When the wheel jump is large, the elastic buffer mechanism 3 can contact the frame, thereby limiting the travel of the wheel jump. The mounting base 301 and the elastic buffer block 302 have a simple structure and are easy to arrange and install on the rod body 200, which is beneficial to improving the comfort of the vehicle.

[0060] Embodiment 2

[0061] This embodiment relates to a suspension system, which is a non-independent suspension system, and the suspension control arm as described in the first embodiment is provided in the suspension system.

[0062] During specific implementation, the suspension control arm is generally an upper control arm in a suspension system, and the elastic buffer mechanism 3 can be arranged at the rear end of the upper control arm.

[0063] The suspension system of this embodiment, by providing the suspension control arm as described above, helps to solve the problem of poor vehicle comfort caused by large wheel hop in the prior art, and has good practicality.

[0064] In addition, the present embodiment also relates to a vehicle, in which the suspension system as described above is provided.

[0065] The vehicle of this embodiment is provided with the suspension system as described above, which helps to improve the driving comfort.

[0066] 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 suspension control arm, characterized in that: It includes a control arm body (2); An elastic buffer mechanism (3) is provided on the control arm body (2), the elastic buffer mechanism (3) is used to abut against the vehicle body under wheel hop excitation, and a connection structure and a limit structure are provided between the elastic buffer mechanism (3) and the control arm body (2); The elastic buffer mechanism (3) is fixed to the control arm body (2) via the connection structure, and the limiting structure is used to limit the elastic buffer mechanism (3) when the elastic buffer mechanism (3) is connected to the control arm body (2).

2. The suspension control arm according to claim 1, characterized in that: The control arm body (2) comprises a rod body (200) and shaft sleeves (202) arranged at both ends of the rod body (200), and the elastic buffer mechanism (3) is arranged at one end of the rod body (200).

3. The suspension control arm according to claim 2, characterized in that: The elastic buffer mechanism (3) comprises a mounting base (301) and an elastic buffer block (302) arranged on the mounting base (301); the connecting structure and the limiting structure are arranged between the mounting base (301) and the rod body (200).

4. The suspension control arm according to claim 3, characterized in that: The mounting base (301) is detachably fixed to the rod body (200) via the connecting structure, and the limiting structure comprises a first limiting structure and a second limiting structure arranged between the mounting base (301) and the rod body (200), wherein the first limiting structure and the second limiting structure have different limiting directions.

5. The suspension control arm according to claim 4, characterized in that: The connection structure adopts a screw connection structure, and the limiting directions of the first limiting structure and the second limiting structure are perpendicular.

6. The suspension control arm according to claim 5, characterized in that: The first limiting structure and the second limiting structure both comprise a limiting surface provided on the rod body (200), and a limiting flange provided on the mounting base (301); Each of the limiting flanges abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located at one side of the rod body (200), and the limiting surface in the second limiting structure is located at the end of the rod body (200).

7. The suspension control arm according to claim 6, characterized in that: The connection structure comprises a threaded connection hole (204) provided on each of the limiting surfaces, a connection through hole (3013) adapted to the threaded connection hole (204), provided on the corresponding limiting flange, and a bolt (304) screwed into the threaded connection hole (204) through the connection through hole (3013).

8. The suspension control arm according to any one of claims 3 to 7, characterized in that: The rod body (200) is provided with the elastic buffer mechanism (3), one end of which is formed with a boss (203), and the mounting base (301) is fixed on the boss (203); and / or, In the thickness direction of the elastic buffer block (302), the cross section of the elastic buffer block (302) is gradually reduced in a direction away from the mounting base (301).

9. A suspension system, characterized in that: The suspension system is a non-independent suspension system, and the suspension control arm according to any one of claims 1 to 8 is provided in the suspension system.

10. A vehicle, characterized in that: The vehicle is provided with the suspension system according to claim 9.

Images