Self-adaptive clearance adjusting device for swing arm

Abstract

The utility model discloses a swing arm self-adaptive clearance adjusting device which comprises an upper base and a lower base, and a swing arm shaft is connected between the upper base and the lower base. A limiting bush is arranged in the lower swing arm, the upper bearing and the lower bearing abut against the limiting bush, and the upper bearing, the lower bearing and the limiting bush are arranged on the swing arm shaft in a sleeving mode; a plurality of bearing gaskets are plugged between the upper bearing and the upper base; the limiting spring is arranged between the second bearing and the lower base in a plugged mode, and the limiting spring is arranged on the swing arm shaft in a compressed and sleeved mode. According to the device, the compression amount of the limiting spring in a compressed state can be automatically adjusted under the elastic force of the limiting spring, so that looseness or gaps existing in all components are compensated, and the clearance in the whole axial direction is counteracted. In addition, the limiting bearing can resist the acting force of the limiting spring, the dryness when the bearing is pressed by the spring to adjust the clearance is relieved, and the abnormal sound generated by the clearance of the swing arm can be effectively relieved by matching with the limiting spring.

Description

Technical Field

[0001] The utility model relates to the field of automobile suspension swing arms, and in particular to a swing arm adaptive virtual position adjusting device. Background Art

[0002] In related technologies, the virtual position of a vehicle swing arm usually refers to the situation where the swing arm or other suspension components in an automobile suspension system become loose or have excessive gaps. This phenomenon may cause abnormal noises or vibrations during vehicle driving. In the traditional rigid structure of the swing arm, there is no good solution to the virtual position of the swing arm. Generally, when the virtual position of the swing arm occurs in a vehicle, post-maintenance is carried out later, which is rather troublesome and cannot improve the virtual position problem from the source of the swing arm structure. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a swing arm adaptive virtual position adjusting device.

[0004] The technical solution of the utility model is as follows: A swing arm adaptive virtual position adjusting device, characterized by comprising:

[0005] An upper base and a lower base, with a vertical swing arm shaft connected between the upper base and the lower base;

[0006] A lower swing arm, in which a vertical shaft hole is provided. A first bearing hole is provided at the upper end of the shaft hole, and a second bearing hole is provided at the lower end of the shaft hole. A limiting bushing is inserted into the shaft hole. An upper bearing is fixedly provided in the first bearing hole, and a lower bearing is fixedly provided in the second bearing hole. The upper bearing and the lower bearing respectively abut against the limiting bushing, and the upper bearing, the lower bearing and the limiting bushing are respectively sleeved on the swing arm shaft;

[0007] Bearing gaskets, several of which are inserted between the upper bearing and the upper base, and the bearing gaskets are sleeved on the swing arm shaft;

[0008] A limiting spring, which is inserted between the second bearing and the lower base, and the limiting spring is in a compressed state and sleeved on the swing arm shaft.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] This device utilizes a limiting spring in a compressed state. The limiting spring can automatically adjust the magnitude of its own compression amount under its own elastic force, thereby compensating for the looseness or gaps existing in each component in the axial direction to offset the virtual position in the entire axial direction. In addition, the limiting bushing 11 abuts between the upper and lower bearings. The limiting bearing can resist the acting force of the limiting spring, which helps to reduce the dry feeling of the bearing when it is tightened by the spring to adjust the virtual position. Cooperating with the limiting spring can effectively reduce the abnormal noise generated by the swing arm due to the virtual position.

[0011] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0013] Figure 1 is a schematic diagram of the present utility model;

[0014] Figure 2 is a cross-sectional view of the present utility model;

[0015] Figure 3 is an exploded view of the present utility model.

[0016] Reference Numerals:

[0017] 1. Upper base; 2. Lower base; 3. Upper ball joint bushing; 4. Lower ball joint bushing; 5. Upper ball joint pin; 6. Lower ball joint pin; 7. Swing arm shaft; 8. Lower swing arm; 9. Upper bearing; 10. Lower bearing; 11. Limiting bushing; 12. Bearing gasket; 13. Limiting spring. Detailed Description of the Embodiments

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0019] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0020] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0022] As Figures 1 - 3 shown, a swing arm self-adaptive adjustment play device includes: an upper base 1, a lower base 2, a lower swing arm 8, a bearing gasket 12 and a limit spring 13.

[0023] As Figure 2 and Figure 3 shown, a vertical swing arm shaft 7 is connected between the upper base 1 and the lower base 2. Among them, an upper ball head bushing 3 is provided in the upper base 1, an upper ball head pin 5 is provided in the upper ball head bushing 3, and a first shaft hole is provided in the upper ball head pin 5; a lower ball head bushing 4 is provided in the lower base 2, a lower ball head pin 6 is provided in the lower ball head bushing 4, and a second shaft hole is provided in the lower ball head pin 6. The upper end of the swing arm shaft 7 is inserted into the first shaft hole, and the lower end is inserted into the second shaft hole.

[0024] The lower control arm 8 is provided with a vertical shaft hole. A first bearing hole is provided at the upper end of the shaft hole, and a second bearing hole is provided at the lower end of the shaft hole. A limiting bushing 11 is inserted through the shaft hole. An upper bearing 9 is fixedly provided in the first bearing hole, and a lower bearing 10 is fixedly provided in the second bearing hole. The upper bearing 9 and the lower bearing 10 are respectively abutted against the limiting bushing 11. The upper bearing 9, the lower bearing 10 and the limiting bushing 11 are respectively sleeved on the swing arm shaft 7.

[0025] A plurality of bearing shims 12 are inserted between the upper bearing 9 and the upper base 1. The bearing shims 12 are sleeved on the swing arm shaft 7. A limiting spring 13 is inserted between the second bearing and the lower base 2. The limiting spring 13 is in a compressed state and is sleeved on the swing arm shaft 7.

[0026] Specifically, in this device, the limiting bushing 11 abuts between the lower end of the upper bearing 9 and the upper end of the lower bearing 10, so as to axially limit the upper and lower bearings. The axial limit of the upper bearing 9 in the other axial direction is achieved by the bearing shims 12, and the axial limit of the lower bearing 10 in the other axial direction is achieved by the limiting spring 13.

[0027] When the device is assembled, the limiting spring 13 is in a compressed state. The limiting spring 13 can automatically adjust the magnitude of its own compression amount under its own elastic force, so as to compensate for the looseness or clearance of each component in the axial direction and offset the virtual position in the whole axial direction. In addition, the limiting bushing 11 abuts between the upper and lower bearings. The limiting bearing can resist the acting force of the limiting spring 13, which helps to reduce the dry feeling when the bearing is pressed by the spring to adjust the virtual position, and can effectively reduce the abnormal noise generated by the swing arm due to the virtual position in cooperation with the limiting spring 13.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A swing arm adaptive virtual position adjustment device, characterized in that: include: An upper base and a lower base, wherein a vertical swing arm shaft is connected between the upper base and the lower base; A lower swing arm, wherein a vertical shaft hole is provided in the lower swing arm, a first bearing hole is provided at the upper end of the shaft hole, a second bearing hole is provided at the lower end of the shaft hole, a limiting bushing is passed through the shaft hole, an upper bearing is fixedly provided in the first bearing hole, a lower bearing is fixedly provided in the second bearing hole, the upper bearing and the lower bearing are respectively abutted against the limiting bushing, and the upper bearing, the lower bearing and the limiting bushing are respectively sleeved on the swing arm shaft; Bearing gaskets, a plurality of bearing gaskets are inserted between the upper bearing and the upper base, and the bearing gaskets are sleeved on the swing arm shaft; A limit spring is provided between the second bearing and the lower base, and the limit spring is sleeved on the swing arm shaft in a compressed state.

2. The swing arm adaptive virtual position adjustment device according to claim 1, characterized in that: An upper ball bushing is arranged in the upper base, an upper ball pin is arranged in the upper ball bushing, and a first shaft hole is arranged in the upper ball pin; A lower ball bushing is provided in the lower base, a lower ball pin is provided in the lower ball bushing, a second axial hole is provided in the lower ball pin, the upper end of the swing arm shaft is inserted into the first axial hole, and the lower end is inserted into the second axial hole.

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