Swing arm bushing and vehicle

Abstract

The utility model belongs to the field of automobile components, and particularly discloses a swing arm lining which comprises an inner lining pipe, a rubber body arranged on the periphery of the inner lining pipe and an outer lining pipe arranged on the periphery of the rubber body in a sleeved mode, and at least one strip-shaped hole extending in the circumferential direction of the rubber body is formed in the rubber body. A plurality of first energy absorption grooves are formed in the side, close to the lining pipe, of the strip-shaped hole in the rubber body, and the first energy absorption grooves are arranged in the length direction of the strip-shaped hole and penetrate through the rubber body in the axial direction. The vehicle comprises the swing arm lining.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, and in particular to a swing arm bushing and a vehicle having the aforementioned swing arm bushing. Background Technology

[0002] The control arms are a crucial component of a car's suspension system, effectively absorbing and cushioning vibrations and impacts transmitted from the ground. Connected to shock absorbers, the control arms support the vehicle body and dampen vibrations, ensuring a smooth and comfortable ride.

[0003] The swing arm bushing is mainly connected to the inner tube and the outer tube by a rubber vulcanization process. During the driving process, the swing arm bushing is subjected to complex working loads such as impact, torsion and swing of the swing arm. The rubber structure of the swing arm bushing is constantly squeezed, which will produce abnormal noise and affect the ride comfort. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a control arm bushing and a vehicle equipped with the control arm bushing, wherein the control arm bushing is capable of absorbing the impact force of the control arm, preventing the control arm bushing from slipping under the impact force of the control arm and causing abnormal noise, thereby improving the vehicle's riding experience.

[0005] The first aspect of this application provides a swing arm bushing, comprising: an inner liner tube, a rubber body disposed on the outer periphery of the inner liner tube, and an outer liner tube sleeved on the outer periphery of the rubber body. The rubber body has at least one linear hole extending circumferentially along the rubber body. The rubber body has a plurality of first energy-absorbing grooves on the side of the linear hole near the inner liner tube. The plurality of first energy-absorbing grooves are arranged along the length direction of the linear hole and penetrate the rubber body axially.

[0006] In one embodiment, the plurality of first energy-absorbing grooves are spaced apart, and each first energy-absorbing groove extends from a position of the rubber body near the inner liner tube to a position near the strip hole and communicates with the strip hole.

[0007] In one embodiment, the width of each portion of the first energy-absorbing groove is the same.

[0008] In one embodiment, the first energy-absorbing groove has a first energy-absorbing part and a second energy-absorbing part that are connected to each other, and the first energy-absorbing part and the second energy-absorbing part are arc-shaped grooves with opposite opening directions.

[0009] In one embodiment, the rubber body has a plurality of second energy-absorbing grooves on the side of the strip hole near the outer liner tube. The plurality of second energy-absorbing grooves are arranged along the length direction of the strip hole and penetrate the rubber body axially.

[0010] In one embodiment, the plurality of second energy-absorbing grooves are spaced apart, and each second energy-absorbing groove extends from the rubber body near the outer liner tube to the position near the strip hole and communicates with the strip hole.

[0011] In one embodiment, the width of each portion of the second energy-absorbing groove is the same.

[0012] In one embodiment, the second energy-absorbing groove has a third energy-absorbing part and a fourth energy-absorbing part that are connected to each other, and the third energy-absorbing part and the fourth energy-absorbing part are arc-shaped grooves with opposite opening directions.

[0013] In one embodiment, the at least one linear hole divides the rubber body into a first rubber body and a second rubber body that are separated from each other, the first rubber body being connected to the inner liner tube and the second rubber body being connected to the outer liner tube.

[0014] A second aspect of this application provides a vehicle including the aforementioned swing arm bushing.

[0015] The advantages of this application compared to the prior art are as follows:

[0016] The swing arm transmits the impact it receives to the swing arm bushing. The strip-shaped holes on the rubber body allow the rubber body to deform under the axial impact of the swing arm, absorbing the axial impact force of the swing arm. The first energy-absorbing groove can provide space for the rubber body to absorb deformation when it is subjected to axial, radial and / or circumferential deformation, further improving the impact absorption performance of the swing arm bushing, avoiding abnormal noise caused by the swing arm bushing sliding under the impact force of the swing arm, and improving the stability of the swing arm bushing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the swing arm bushing in this application.

[0019] Figure 2 This is a front view schematic diagram of the swing arm bushing in this application.

[0020] Figure 3 for Figure 2 Schematic diagram of the cross section AA.

[0021] In the figure: 1. Inner liner tube; 2. Rubber body; 21. Strip hole; 211. Arc-shaped part; 212. Partition part; 22. First energy-absorbing groove; 221. First energy-absorbing part; 222. Second energy-absorbing part; 23. Second energy-absorbing groove; 231. Third energy-absorbing part; 232. Fourth energy-absorbing part; 24. First rubber body; 25. Second rubber body; 3. Outer liner tube; 100. Swing arm bushing. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0026] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0027] Example 1

[0028] like Figure 1 and Figure 2As shown, this embodiment provides a swing arm bushing 100, including: an inner liner tube 1, a rubber body 2 disposed on the outer periphery of the inner liner tube 1, and an outer liner tube 3 sleeved on the outer periphery of the rubber body 2. The rubber body 2 is provided with at least one linear hole 21 extending circumferentially along the rubber body 2. The rubber body 2 is provided with a plurality of first energy-absorbing grooves 22 on the side of the linear hole 21 near the inner liner tube 1. The plurality of first energy-absorbing grooves 22 are arranged along the length direction of the linear hole 21 and penetrate the rubber body 2 axially.

[0029] In this embodiment, the inner liner tube 1 is sleeved on the swing arm. It can be understood that the swing arm will transmit the impact it receives to the swing arm bushing 100. The strip hole 21 on the rubber body 2 can cause the rubber body 2 to deform under the axial impact of the swing arm, absorbing the axial impact force of the swing arm. The first energy-absorbing groove 22 can provide space for the rubber body 2 to absorb deformation when the rubber body 2 is subjected to impact and undergoes axial, radial and / or circumferential deformation, further improving the impact absorption performance of the swing arm bushing 100, avoiding abnormal noise caused by the sliding of the swing arm bushing 100 under the impact force of the swing arm, and improving the stability of the swing arm bushing 100.

[0030] like Figure 1 and Figure 2 As shown, in a specific example provided in this application, a plurality of first energy-absorbing grooves 22 are spaced apart along the length direction of the strip hole 21, and these first energy-absorbing grooves 22 extend radially from the rubber body 2 near the inner liner tube 1 towards the strip hole 21, and communicate with the strip hole 21 at their outer ends. Further, as... Figure 3 As shown, the width of each part of the first energy-absorbing groove 22 is the same. In this embodiment, the groove width of each part of the first energy-absorbing groove 22 is 1-3mm. Furthermore, the first energy-absorbing groove 22 has a first energy-absorbing part 221 and a second energy-absorbing part 222 that are connected. The first energy-absorbing part 221 and the second energy-absorbing part 222 are arc-shaped grooves with opposite opening directions. The number of the first energy-absorbing part 221 and the second energy-absorbing part 222 is unlimited, and the first energy-absorbing part 221 and the second energy-absorbing part 222 are spaced apart. That is, the second energy-absorbing part 222 is located between adjacent first energy-absorbing parts 221, and / or the first energy-absorbing part 221 is located between adjacent second energy-absorbing parts 222. The connection between the first energy-absorbing part 221 and the second energy-absorbing part 222 is a smooth arc shape, thus making the first energy-absorbing groove 22 as a whole wavy shape.

[0031] It is understood that in this embodiment, the first energy-absorbing part 221 and the second energy-absorbing part 222 are arc-shaped grooves with opposite opening directions, which can realize the two-stage absorption of the impact force of the swing arm by the first energy-absorbing groove 22, improve the stability of the swing arm bushing 100, and prevent the swing arm bushing 100 from slipping under the impact of the swing arm; the width of each part of the first energy-absorbing groove 22 is the same, which can ensure that the rubber body 2 maintains linear contraction during the deformation process, and improve the stability of the swing arm bushing 100.

[0032] like Figure 1 As shown, in a specific example provided in this application, the rubber body 2 has a plurality of second energy-absorbing grooves 23 on the side of the strip hole 21 near the outer liner tube 3. The plurality of second energy-absorbing grooves 23 are arranged along the length direction of the strip hole 21 and penetrate the rubber body 2 axially.

[0033] Understandably, the swing arm transmits the impact it receives to the swing arm bushing 100. The strip-shaped hole 21 on the rubber body 2 allows the rubber body 2 to deform under the impact of the swing arm, absorbing the impact force. The second energy-absorbing groove 23 narrows when the rubber body 2 is stretched or compressed by axial, radial, or circumferential impact, providing deformation space for the deformation of the rubber body 2. The combination of the first energy-absorbing groove 22 and the second energy-absorbing groove 23 can provide deformation space for the axial, radial, or circumferential deformation of the rubber body 2, further improving the impact absorption performance of the swing arm bushing 100, preventing the swing arm bushing 100 from slipping and making abnormal noises under the impact of the swing arm, and improving the stability of the swing arm bushing 100.

[0034] Furthermore, in this embodiment, the plurality of second energy-absorbing grooves 23 are spaced apart along the length direction of the strip hole 21, and these second energy-absorbing grooves 23 extend radially from the position of the rubber body 2 near the outer liner tube 3 towards the position near the strip hole 21, and communicate with the strip hole 21 at their inner ends. Specifically, see Figure 3 The width of each part of the second energy-absorbing groove 23 is the same. In this embodiment, the width of each part of the second energy-absorbing groove 22 is 1-3mm. In addition, the second energy-absorbing groove 23 has a connected third energy-absorbing part 231 and a fourth energy-absorbing part 232. The third energy-absorbing part 231 and the fourth energy-absorbing part 232 are arc-shaped grooves with opposite opening directions. The number of third energy-absorbing parts 231 and the fourth energy-absorbing part 232 is unlimited, and the third energy-absorbing parts 231 and the fourth energy-absorbing part 232 are arranged at intervals. That is, the third energy-absorbing part 231 is located between adjacent fourth energy-absorbing parts 232, and / or the fourth energy-absorbing part 232 is located between adjacent third energy-absorbing parts 231. The connection between the third energy-absorbing part 231 and the fourth energy-absorbing part 232 is a smooth arc shape, so that the second energy-absorbing groove 23 is generally wavy.

[0035] Understandably, the third energy-absorbing part 231 and the fourth energy-absorbing part 232 are arc-shaped grooves with opposite opening directions, which can realize the two-stage absorption of the impact force of the swing arm by the second energy-absorbing groove 23, improve the stability of the swing arm bushing 100, and avoid the abnormal noise caused by the swing arm bushing 100 sliding under the impact force of the swing arm; the width of each part of the second energy-absorbing groove 23 is the same, which can ensure that the rubber body 2 maintains linear contraction during the deformation process, and improve the stability of the swing arm bushing 100.

[0036] like Figure 1As shown in the specific example provided in this application, there are two strip-shaped holes 21, which are evenly distributed circumferentially on the rubber body 2. Each strip-shaped hole 21 includes an arc-shaped portion 211 extending circumferentially and a partition portion 212 extending outward from the end of the arc-shaped portion 211, which divides the rubber body 2 into a first rubber body 24 and a second rubber body 25 that are separated from each other. The first rubber body 24 is connected to the inner liner tube 1, and the second rubber body 25 is connected to the outer liner tube 3. The second rubber bodies 25 are symmetrically distributed on both sides of the first rubber body 24. In actual use, when the first rubber body 24 hits the second rubber body 25, the second rubber body 25 can absorb part of the impact. Specifically, the second rubber body 25 can deform when it is impacted and expand towards the position of the second energy-absorbing groove 23 to absorb part of the impact received by the second rubber body 25. In other embodiments, three strip-shaped holes 21 are evenly distributed on the rubber body 2 to divide the rubber body 2 into one first rubber body 24 and three second rubber bodies 25. Therefore, this application does not limit the number of strip holes 21 on the rubber body 2.

[0037] like Figure 1 and Figure 2 As shown, in a specific example provided in this application, the first energy-absorbing groove 22 extends approximately along the axial direction of the inner liner tube 1; the second energy-absorbing groove 23 extends approximately along the axial direction of the outer liner tube 3. Specifically, in this embodiment, there are nine first energy-absorbing grooves 22 evenly distributed circumferentially on the rubber body 2, and eight second energy-absorbing grooves 23 evenly distributed circumferentially on the rubber body 2. In actual use, the multiple first energy-absorbing grooves 22 and second energy-absorbing grooves 23 enable the rubber body 2 to have multi-level shock absorption capabilities, further ensuring the absorption of the impact force of the swing arm by the rubber body 2. This can prevent slippage between the swing arm and the swing arm bushing 100, avoid relative sliding between the swing arm and the swing arm bushing 100 that would cause abnormal noise, and also absorb the radial impact force on the swing arm, improving NVH performance. It is worth mentioning that in other embodiments, under the premise of ensuring the strength of the rubber body 2, the number of first energy-absorbing grooves 22 and second energy-absorbing grooves 23 can be other values, such as seven or ten each. This application does not impose any restrictions and can set them according to actual needs.

[0038] In one specific example provided in this application, the first rubber body 24 is made of a high-durability rubber compound. The second rubber body 25 is made of a high-lubricity rubber compound. In this embodiment, the first rubber body 24, made of a high-durability rubber compound, is used to ensure the durability of the first rubber body 24. The axial thickness of the second rubber body 25 is smaller than that of the first rubber body 24, and its strength is relatively lower. However, compared with the impact experienced by the first rubber body 24, the impact experienced by the second rubber body 25 is relatively smaller. Therefore, its durability can also meet the requirements. Using a high-lubricity rubber compound to make the second rubber body 25 can reduce or avoid abnormal sliding friction noise between the first rubber body 24 and the second rubber body 25.

[0039] Example 2

[0040] This embodiment provides a swing arm assembly, including the swing arm bushing 100 from Embodiment 1. In actual use, when the swing arm is subjected to external force and swings, the swing arm bushing 100 can absorb the impact force generated by the swing arm swing, preventing slippage between the swing arm and the swing arm bushing 100, thereby preventing abnormal noise between the swing arm and the swing arm bushing 100.

[0041] Example 3

[0042] This embodiment provides a vehicle, including the swing arm bushing of Embodiment 1 or the swing arm assembly of Embodiment 2. During vehicle operation, the vehicle experiences bumps due to road conditions. The swing arm absorbs the impact force generated by the vehicle, maintaining its stability. The swing arm bushing 100 absorbs the impact force generated by the swing arm's swing, preventing slippage between the swing arm and the bushing 100, thereby preventing abnormal noises between the swing arm and the bushing 100, improving the vehicle's NVH performance, and ultimately enhancing the comfort of the occupants.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A swing arm bushing, characterized in that, include: The inner liner (1), the rubber body (2) disposed on the outer periphery of the inner liner (1), and the outer liner (3) sleeved on the outer periphery of the rubber body (2). The rubber body (2) is provided with at least one strip hole (21) extending circumferentially along the rubber body (2). The rubber body (2) is provided with a plurality of first energy-absorbing grooves (22) on the side of the strip hole (21) near the inner liner (1). The plurality of first energy-absorbing grooves (22) are arranged along the length direction of the strip hole (21) and penetrate the rubber body (2) axially.

2. The swing arm bushing as described in claim 1, characterized in that, The plurality of first energy-absorbing grooves (22) are spaced apart, and each first energy-absorbing groove (22) extends from the position of the rubber body (2) near the inner liner tube (1) to the position near the strip hole (21) and communicates with the strip hole (21).

3. The swing arm bushing as described in claim 1, characterized in that, The width of each part of the first energy-absorbing groove (22) is the same.

4. The swing arm bushing as described in claim 1, characterized in that, The first energy-absorbing groove (22) has a first energy-absorbing part (221) and a second energy-absorbing part (222) that are connected. The first energy-absorbing part (221) and the second energy-absorbing part (222) are arc-shaped grooves with opposite opening directions.

5. The swing arm bushing as described in claim 1, characterized in that, The rubber body (2) has a plurality of second energy-absorbing grooves (23) on the side of the strip hole (21) near the outer liner tube (3). The plurality of second energy-absorbing grooves (23) are arranged along the length direction of the strip hole (21) and penetrate the rubber body (2) axially.

6. The swing arm bushing as described in claim 5, characterized in that, The plurality of second energy-absorbing grooves (23) are spaced apart, and each second energy-absorbing groove (23) extends from the position of the rubber body (2) near the outer liner tube (3) to the position near the strip hole (21) and communicates with the strip hole (21).

7. The swing arm bushing as described in claim 5, characterized in that, The width of each part of the second energy-absorbing groove (23) is the same.

8. The swing arm bushing as described in claim 5, characterized in that, The second energy-absorbing groove (23) has a third energy-absorbing part (231) and a fourth energy-absorbing part (232) that are connected to each other. The third energy-absorbing part (231) and the fourth energy-absorbing part (232) are arc-shaped grooves with opposite opening directions.

9. The swing arm bushing as described in claim 1, characterized in that, The at least one linear hole (21) divides the rubber body (2) into a first rubber body (24) and a second rubber body (25) that are separated from each other. The first rubber body (24) is connected to the inner liner tube (1), and the second rubber body (25) is connected to the outer liner tube (3).

10. A vehicle, characterized in that, Includes the swing arm bushing as described in any one of claims 1 to 9.

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