Guide arm assembly, suspension system and vehicle

Abstract

The utility model discloses a guide arm assembly, a suspension system and a vehicle, and the guide arm assembly comprises a guide arm, a fixing part, an elastic part and a spring, the connecting support is arranged at the end, away from the fixing part, of the guide arm in a hung mode, and the connecting support is suitable for being connected with an air spring assembly and a shock absorber. According to the guide arm assembly, a twisting structure is omitted, stress concentration and manufacturing defects in the forming process of the guide arm can be avoided, the service life of the guide arm can be prolonged, the connecting support bears the load of the air spring assembly, the stress of the guide arm assembly can be reduced, in addition, the guide arm assembly does not occupy the longitudinal space of a vehicle in the aspect of arrangement, and the cost is reduced. The longitudinal installation distance of the air spring assembly can be shortened, the guide arm assembly can be lengthened, the load borne by the guide arm assembly can be reduced in the aspect of load distribution, and therefore the reliability and comfort of a vehicle are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a guide arm assembly, suspension system and vehicle. BACKGROUND

[0002] In the related art, the guide arm assembly is an important core structure in the automobile, and is a suspension component connecting the axle and the frame, used to transmit the force and torque between the axle and the frame, so as to constrain the movement trajectory of the axle relative to the frame, and ensure the stable and safe driving of the vehicle. Due to the arrangement requirement of the electric drive axle and the drum brake, when the suspension system is arranged, a torsion structure ('Z' type structure) guide arm assembly needs to be selected to avoid the brake.

[0003] However, the existing guide arm assembly also has significant defects: the guide arm assembly is a torsion structure, the end is bent approximately 90 degrees, and stress concentration and manufacturing defects are prone to occur at the bending part. In addition, in the arrangement, the guide arm assembly occupies the longitudinal space between the air spring assembly and the axle, the air spring assembly needs to be moved backward, causing the guide arm assembly to bear a large load and the guide arm assembly to have a short half-chord length, which reduces the fatigue life of the guide arm assembly, affects the reliability and comfort of the vehicle, and even causes safety accidents and other problems. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a guide arm assembly which can reduce the load borne in load distribution, thereby improving the reliability and comfort of the vehicle.

[0005] The utility model further provides a suspension system.

[0006] The utility model still further provides a vehicle.

[0007] According to the guide arm assembly of the utility model, the guide arm assembly includes: a guide arm, one end of the guide arm is provided with a fixed part; a connecting support is hung on the end of the guide arm away from the fixed part, and the connecting support is suitable for connecting an air spring assembly and a shock absorber.

[0008] According to the guide arm assembly of the utility model, the guide arm assembly cancels the torsion structure, can avoid stress concentration and manufacturing defects in the guide arm forming process, can improve the service life of the guide arm, secondly, the connecting support bears the load of the air spring assembly, can reduce the stress of the guide arm assembly, in addition, in the arrangement, the guide arm assembly does not occupy the longitudinal space of the vehicle, can shorten the longitudinal installation distance of the air spring assembly and lengthen the guide arm assembly, can reduce the load borne by the guide arm assembly in load distribution, thereby improving the reliability and comfort of the vehicle.

[0009] In some examples of the utility model, still include: fixed part, the connecting support includes: support part, the fixed part is hung in the end of the guide arm away from the fixed part, the support part is arranged at the lower end of the fixed part, so that the axle is pressed between the guide arm body and the support part.

[0010] In some examples of the utility model, the support part is provided with a positioning part, and the positioning part is suitable for positioning cooperation with the axle.

[0011] In some examples of the utility model, the connecting support further includes a connecting part, an air spring assembly mounting part and a shock absorber mounting part, the connecting part is connected with the support part, and the air spring assembly mounting part and the shock absorber mounting part are connected with the connecting part respectively.

[0012] In some examples of the utility model, the support part, the connecting part, the air spring assembly mounting part and the shock absorber mounting part are integrally formed.

[0013] In some examples of the utility model, further include: cover plate, the cover plate is pressed between the fixed part and the guide arm.

[0014] According to the suspension system of the utility model, including: air spring assembly;Shock absorber;Push rod, the push rod is connected between the shock absorber;The guide arm assembly described above, the lower end of the air spring assembly is fixed on the connecting support, and the lower end of the shock absorber is fixed on the connecting support.

[0015] According to the vehicle of the utility model, including: axle;Frame, the upper end of the air spring assembly is fixed on the frame, and the upper end of the shock absorber is fixed on the frame;The suspension system described above, the fixed part is fixed on the frame, and the axle is pressed between the guide arm and the connecting support.

[0016] In some examples of the utility model, further include: first mounting bracket, second mounting bracket and third mounting bracket, the fixed part is fixed on the frame through the first mounting bracket, the upper end of the air spring assembly is fixed on the frame through the second mounting bracket, and the upper end of the shock absorber is fixed on the frame through the third mounting bracket.

[0017] In some examples of the utility model, further include: buffer, the buffer is arranged on the frame to buffer and limit the axle.

[0018] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings of which:

[0020] Figure 1 is a partial structure schematic diagram of a vehicle according to an embodiment of the present utility model;

[0021] Figure 2 is a structure schematic diagram of a vehicle according to an embodiment of the present utility model;

[0022] Figure 3 is a structure schematic diagram of a connecting support.

[0023] Reference Signs:

[0024] 1, guide arm assembly;

[0025] 10, guide arm; 100, fixed part; 101, guide arm body; 20, connecting support; 200, support part; 201, positioning part; 202, connecting part; 203, air spring assembly mounting part; 204, shock absorber mounting part; 30, fixing piece; 40, cover plate; 2, suspension system; 50, air spring assembly; 60, shock absorber; 70, thrust rod; 3, vehicle; 80, vehicle frame; 800, first mounting frame; 801, second mounting frame; 802, third mounting frame; 90, buffer. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model are described in detail below, and the embodiments described with reference to the drawings are exemplary, and the embodiments of the present utility model are described in detail below.

[0027] The embodiments of the present utility model are described in detail below, and the embodiments described with reference to the drawings are exemplary, and the embodiments of the present utility model are described in detail below. Figures 1-3 The guide arm assembly 1 according to the embodiment of the present utility model is described below.

[0028] As shown in Figures 1-3 , the guide arm assembly 1 according to the embodiment of the present utility model comprises: a guide arm 10 and a connecting support 20. The guide arm 10 can mainly guide or control the movement of the moving part along a specific path, and can transmit vertical force and longitudinal force. The connecting support 20 can mainly play a connecting and supporting role.

[0029] As shown in Figure 1 and Figure 2As shown, a fixing part 100 is provided at one end of the guide arm 10, and a connecting support 20 is hung at the end of the guide arm 10 away from the fixing part 100. The connecting support 20 is suitable for connecting the air spring assembly 50 and the shock absorber 60. The fixing part 100 mainly serves as a fixed connection. The connecting support 20 is hung on the end of the guide arm 10 away from the fixing part 100. The guide arm 10 has the connecting support 20 on the side away from the fixing part 100. That is to say, the guide arm assembly 1 eliminates the tortuous structure, which can avoid stress concentration and manufacturing defects during the forming process of the guide arm 10 and improve the service life of the guide arm 10. In addition, in terms of layout, the guide arm assembly 1 does not occupy the longitudinal space of the vehicle 3, which can shorten the longitudinal installation distance of the air spring assembly 50 and lengthen the guide arm assembly 1. In terms of load distribution, it can reduce the load on the guide arm assembly 1, thereby improving the reliability and comfort of the vehicle 3. The connecting support 20 is suitable for connecting the air spring assembly 50 and the shock absorber 60. At this time, the connecting support 20 bears the load of the air spring assembly 50, which can reduce the force on the guide arm assembly 1.

[0030] Therefore, by eliminating the tortuous structure in the guide arm assembly 1, stress concentration and manufacturing defects can be avoided during the forming process of the guide arm 10, thus improving the service life of the guide arm 10. Secondly, the load of the air spring assembly 50 is borne by the connecting support 20, which can reduce the stress on the guide arm assembly 1. In addition, in terms of layout, the guide arm assembly 1 does not occupy the longitudinal space of the vehicle 3, which can shorten the longitudinal installation distance of the air spring assembly 50 and lengthen the guide arm assembly 1. In terms of load distribution, the load on the guide arm assembly 1 can be reduced, thereby improving the reliability and comfort of the vehicle 3.

[0031] Specifically, such as Figures 1-3 As shown, the guide arm assembly 1 also includes a fixing member 30. The connecting support 20 includes a support portion 200. The fixing member 30 is hung on the end of the guide arm 10 away from the fixing portion 100, and the support portion 200 is located at the lower end of the fixing member 30, so that the axle is pressed between the guide arm body 101 and the support portion 200. The fixing member 30 mainly serves a connecting and supporting function. The connecting support 20 includes a support portion 200, which mainly serves a supporting function. The fixing member 30 is hung on the end of the guide arm 10 away from the fixing portion 100. The guide arm 10 has a fixing member 30 on the side away from the fixing portion 100. The fixing member 30 can fix the guide arm 10. The support portion 200 is located at the lower end of the fixing member 30, so that the axle is pressed between the guide arm body 101 and the support portion 200. This can ensure the stability of the axle and reduce the transmission of vibration, thereby improving the overall stability and ride comfort of the vehicle 3. Among them, the fastener 30 can be a U-bolt and a nut.

[0032] Among them, such as Figure 3As shown in the drawings, the support part 200 is provided with a positioning part 201, which is suitable for positioning cooperation with the axle. The positioning part 201 mainly plays a positioning role. The positioning part 201 is suitable for positioning cooperation with the axle. Through the accurate positioning cooperation between the positioning part 201 and the axle, it can be ensured that the axle can be accurately placed at its predetermined position during installation.

[0033] In addition, as Figure 3 As shown in the drawings, the connecting support 20 further comprises a connecting part 202, an air spring assembly mounting part 203 and a shock absorber mounting part 204. The connecting part 202 is connected with the support part 200, and the air spring assembly mounting part 203 and the shock absorber mounting part 204 are respectively connected with the connecting part 202. It should be noted that the connecting part 202, the air spring assembly mounting part 203 and the shock absorber mounting part 204 are components of the connecting support 20. The connecting part 202 mainly plays a connecting role. The air spring assembly mounting part 203 can be used to install and arrange the air spring assembly 50. The shock absorber mounting part 204 can be used to install and arrange the shock absorber 60. The connecting part 202 is connected with the support part 200, and the air spring assembly mounting part 203 and the shock absorber mounting part 204 are respectively connected with the connecting part 202. At this time, the connecting part 202, the support part 200, the air spring assembly mounting part 203 and the shock absorber mounting part 204 form an integral whole, which is convenient for the installation and arrangement of the connecting support 20.

[0034] Of course, as Figure 3 As shown in the drawings, the support part 200, the connecting part 202, the air spring assembly mounting part 203 and the shock absorber mounting part 204 are integrally formed. At this time, the connecting support 20 is also integrally formed. At this time, the overall structure of the connecting support 20 is more stable and firm, which is convenient for installation and arrangement. At the same time, only one processing mold is needed, which is convenient for the production and manufacture of the connecting support 20.

[0035] Further, as Figure 1 and Figure 2 As shown in the drawings, the guide arm assembly 1 further comprises a cover plate 40, which is tightly pressed between the fixing part 30 and the guide arm 10. The cover plate 40 can ensure the close contact between the components, improve the overall rigidity and stability of the structure, and the cover plate 40 is tightly pressed between the fixing part 30 and the guide arm 10. At this time, the cover plate 40 can prevent the relative movement of the fixing part 30 and the guide arm 10 during use, so as to ensure the stability and reliability of the guide arm assembly 1.

[0036] As Figure 1 and Figure 2As shown, according to the suspension system 2 of the utility model embodiment, it comprises: air spring assembly 50, shock absorber 60, push rod 70, push rod 70 is connected between shock absorber 60, the guiding arm assembly 1 described in the above embodiment, the lower end of air spring assembly 50 is fixed on connecting support 20, the lower end of shock absorber 60 is fixed on connecting support 20. Air spring assembly 50 can change its stiffness characteristics by adjusting internal air pressure, so that smoother driving experience can be provided, shock absorber 60 can mainly absorb and dissipate impact energy from road unevenness, prevent excessive up and down vibration of vehicle 3, push rod 70 can mainly be used to control the position change of axle relative to vehicle body, push rod 70 is connected between shock absorber 60, air spring assembly 50 can mainly transmit vertical force, shock absorber 60 can mainly generate damping force during compression and stretching, push rod 70 can mainly transmit lateral force, the lower end of air spring assembly 50 is fixed on connecting support 20, the lower end of shock absorber 60 is fixed on connecting support 20, connecting support 20 is suitable for connecting air spring assembly 50 and shock absorber 60, at this time the load of air spring assembly 50 is borne by connecting support 20, which can reduce the stress of guiding arm assembly 1. It should be noted that one end of push rod 70 is connected with axle support, and the other end is connected with frame 80 support.

[0037] As Figure 1 And Figure 2 As shown, according to the vehicle 3 of the utility model embodiment, it comprises: axle, frame 80, the upper end of air spring assembly 50 is fixed on frame 80, the upper end of shock absorber 60 is fixed on frame 80, the suspension system 2 described in the above embodiment, fixed part 100 is fixed on frame 80, axle is pressed between guiding arm 10 and connecting support 20. Axle can mainly support the weight of vehicle 3, and transmit driving force, braking force and steering force to wheels, frame 80 can mainly connect and support all main components of vehicle 3, the upper end of air spring assembly 50 is fixed on frame 80, the upper end of shock absorber 60 is fixed on frame 80, the upper end of air spring assembly 50 and shock absorber 60 is fixedly connected with frame 80, fixed part 100 is fixed on frame 80, fixed part 100 is fixedly connected with frame 80, axle is pressed between guiding arm 10 and connecting support 20, that is to say, axle is pressed between guiding arm body 101 and supporting part 200, so that the stability of axle and the transmission of vibration can be ensured, so that the overall stability and ride comfort of vehicle 3 can be improved. Among them, fixed part 100, spring assembly 50 and shock absorber 60 can be fixedly connected with frame 80 through bolts.

[0038] In addition, as Figure 1 And Figure 2As shown, the vehicle 3 further comprises: a first mounting bracket 800, a second mounting bracket 801 and a third mounting bracket 802, the fixing part 100 is fixed to the frame 80 through the first mounting bracket 800, the upper end of the air spring assembly 50 is fixed to the frame 80 through the second mounting bracket 801, and the upper end of the shock absorber 60 is fixed to the frame 80 through the third mounting bracket 802. The first mounting bracket 800, the second mounting bracket 801 and the third mounting bracket 802 are component parts of the vehicle 3, and can all play the role of mounting support. When the fixing part 100 is fixed to the frame 80 through the first mounting bracket 800, the upper end of the air spring assembly 50 is fixed to the frame 80 through the second mounting bracket 801, and the upper end of the shock absorber 60 is fixed to the frame 80 through the third mounting bracket 802, it can be ensured that the fixing part 100, the air spring assembly 50 and the shock absorber 60 are stably mounted, and can effectively perform their functions.

[0039] It should be noted that, as Figure 2 As shown, the vehicle 3 further comprises: a buffer 90, which is arranged on the frame 80 to buffer and limit the axle. The buffer 90 mainly plays the roles of buffering and limiting. When the buffer 90 is arranged on the frame 80, the direct impact of the axle on the frame 80 can be reduced, and excessive deformation of the air spring assembly 50 can be prevented.

[0040] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0041] In the description of the utility model, "first feature" and "second feature" can include one or more features. In the description of the utility model, "a plurality of" means two or more. In the description of the utility model, "above" or "below" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. In the description of the utility model, "above", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.

[0042] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example.

[0043] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A guide arm assembly (1) characterized by, Comprising: a guide arm (10), one end of the guide arm (10) is provided with a fixed part (100); a connecting support (20) is hung on one end of the guide arm (10) away from the fixed part (100), and the connecting support (20) is suitable for connecting an air spring assembly (50) and a shock absorber (60).

2. A guide arm assembly (1) according to claim 1, characterized in that Further comprising: a fixing piece (30), the guide arm (10) comprises: a guide arm body (101), the connecting support (20) comprises: a supporting part (200), the fixing piece (30) is hung on one end of the guide arm (10) away from the fixed part (100), and the supporting part (200) is arranged at the lower end of the fixing piece (30) to press the axle between the guide arm body (101) and the supporting part (200).

3. The guide arm assembly (1) according to claim 2, characterized in that The supporting part (200) is provided with a positioning part (201) suitable for positioning cooperation with the axle.

4. The guide arm assembly (1) according to claim 2, characterized in that The connecting support (20) further comprises: a connecting part (202), an air spring assembly mounting part (203) and a shock absorber mounting part (204), the connecting part (202) is connected with the supporting part (200), and the air spring assembly mounting part (203) and the shock absorber mounting part (204) are respectively connected with the connecting part (202).

5. The guide arm assembly (1) according to claim 4, characterized in that The supporting part (200), the connecting part (202), the air spring assembly mounting part (203) and the shock absorber mounting part (204) are integrally formed.

6. The guide arm assembly (1) according to claim 2, characterized in that Further comprising: a cover plate (40) is pressed between the fixing piece (30) and the guide arm (10).

7. A suspension system (2) characterised in that, Comprising: an air spring assembly (50); a shock absorber (60); a thrust rod (70) connected between the shock absorbers (60); The guide arm assembly (1) of any one of claims 1-6, the lower end of the air spring assembly (50) is fixed on the connecting support (20), and the lower end of the shock absorber (60) is fixed on the connecting support (20).

8. A vehicle (3), characterized in that Comprising: an axle; a frame (80), the upper end of the air spring assembly (50) is fixed on the frame (80), and the upper end of the shock absorber (60) is fixed on the frame (80); The suspension system (2) of claim 7, the fixed part (100) is fixed on the frame (80), and the axle is pressed between the guide arm (10) and the connecting support (20).

9. The vehicle (3) according to claim 8, characterized in that Further comprising: a first mounting bracket (800), a second mounting bracket (801) and a third mounting bracket (802), the fixed part (100) is fixed on the frame (80) through the first mounting bracket (800), the upper end of the air spring assembly (50) is fixed on the frame (80) through the second mounting bracket (801), and the upper end of the shock absorber (60) is fixed on the frame (80) through the third mounting bracket (802).

10. The vehicle (3) according to claim 8, characterized in that Further comprising: A buffer (90) is arranged on the frame (80) to buffer and limit the axle.

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