High performance bushing

Abstract

The utility model provides a kind of high-performance bushing belongs to mechanical technical field.It solves the problem of the existing bushing buffering effect is not ideal.The high-performance bushing, including outer tube and inner tube, elastic member is equipped between outer tube and inner tube, the side of elastic member is equipped with several buffer cavities, buffer cavity is along the radial setting of inner tube and buffer cavity is evenly arranged with the axis of inner tube as center, spring is equipped in buffer cavity, and two ends of spring are respectively abutted on inner tube and outer tube.The high-performance bushing has the advantages that buffering effect is good and structure is reliable and stable.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a bushing, particularly a high-performance bushing. Background Technology

[0002] During vehicle operation, especially when the suspension system is subjected to impacts from the road surface, vibrations occur. To overcome these vibrations and improve ride comfort, shock absorbers are widely used in automotive suspension systems. Rubber bushings are widely employed as a secondary damping measure, connecting the shock absorber to the suspension system, and as a flexible connection between vehicle assemblies and linkages.

[0003] Chinese Patent Publication No. CN100510457C proposes a rubber-plastic composite bushing technology. The main technical solution involves a rubber sleeve fixed to the outer cylindrical surface of a steel sleeve, with a plastic bushing fixed within the inner hole of the steel sleeve. At least one annular groove is provided on the outer cylindrical surface of the middle part of the rubber sleeve, and an oil return groove is provided in the inner hole of the plastic bushing. This technology utilizes a rubber bushing for interference fit, preventing bushing misalignment, tilting, and uneven wear during press-fitting. It also mitigates structural damage caused by excessive deformation under severe vehicle vibration or heavy loads. Furthermore, the oil return groove design lubricates, reduces friction, and extends service life. However, this rubber-plastic composite bushing relies on the elasticity of the rubber for cushioning, resulting in a less than ideal cushioning effect. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a high-performance bushing with good buffering effect and reliable and stable structure.

[0005] The objective of this utility model can be achieved through the following technical solution: a high-performance bushing, including an outer cylinder and an inner cylinder, wherein an elastic element is provided between the outer cylinder and the inner cylinder, characterized in that the side of the elastic element is provided with a plurality of buffer cavities, the buffer cavities are arranged radially along the inner cylinder and are uniformly arranged with the axis of the inner cylinder as the center, and a spring is provided in the buffer cavity, the two ends of the spring abutting against the inner cylinder and the outer cylinder respectively.

[0006] The aforementioned elastic element is provided between the outer cylinder and the inner cylinder. The buffer cavity of the elastic element is arranged along the radial direction of the inner cylinder. The elastic element can buffer vibrations in different directions, and the spring in the buffer cavity can buffer radial vibrations. Through the dual buffering effect of the elastic element and the spring, this bushing has the advantages of good buffering effect and reliable and stable structure.

[0007] In the aforementioned high-performance bushing, a plug is threaded onto the outer cylinder. The inner end of the plug has a protruding positioning protrusion. One end of the spring is fitted onto the positioning protrusion, and the outer wall of the inner cylinder has a positioning groove. The other end of the spring is embedded in the positioning groove. The two ends of the spring are respectively connected to the positioning protrusion of the plug and the positioning groove of the inner cylinder, providing good positioning of the spring, preventing spring misalignment, and thus improving the buffering effect.

[0008] In the aforementioned high-performance bushing, the number of springs is 3-8, and they are evenly distributed around the axis of the inner cylinder. This arrangement provides the advantage of good cushioning performance.

[0009] In the aforementioned high-performance bushing, the inner edge of the upper end of the elastic element is provided with a plurality of arc-shaped protrusions, and these arc-shaped protrusions are evenly distributed with the axis of the inner cylinder as the center. This arrangement increases the elasticity of the elastic element and improves the cushioning effect.

[0010] In the aforementioned high-performance bushing, the inner edge of the lower end of the elastic element is provided with a plurality of arc-shaped protrusions, and these arc-shaped protrusions are evenly arranged with the axis of the inner cylinder as the center. This arrangement increases the elasticity of the elastic element and improves the cushioning effect.

[0011] In the aforementioned high-performance bushing, the outer cylinder, inner cylinder, and elastic element are vulcanized integrally molded structures. This design offers advantages such as ease of manufacturing and long service life.

[0012] In the aforementioned high-performance bushing, both ends of the outer cylinder are provided with inwardly bent portions, which abut against the corresponding end faces of the elastic element. By pressing the bent portions against the corresponding end faces of the elastic element, the connection strength between the elastic element and the outer cylinder is improved, thereby increasing the service life of the bushing.

[0013] In the aforementioned high-performance bushing, the inner cylinder is made of high-strength steel. The use of high-strength steel for the inner cylinder improves the service life of this high-performance bushing.

[0014] In the aforementioned high-performance bushing, the buffer cavity is filled with damping fluid. The damping fluid in the buffer cavity improves the vibration reduction effect.

[0015] Compared with existing technologies, this high-performance bushing has the following advantages:

[0016] 1. The elastic element can buffer vibrations in different directions, and the spring in the buffer cavity can buffer radial vibrations. Through the dual buffering effect of the elastic element and the spring, this bushing has the advantages of good buffering effect and reliable and stable structure.

[0017] 2. The two ends of the spring are respectively connected to the positioning protrusion of the plug and the positioning groove of the inner cylinder, which has a good positioning effect on the spring, avoids spring displacement, and thus improves the buffering effect.

[0018] 3. The inner edge of the upper end of the elastic element is provided with several arc-shaped protrusions, and the arc-shaped protrusions are evenly arranged with the axis of the inner cylinder as the center. The inner edge of the lower end of the elastic element is provided with several arc-shaped protrusions, and the arc-shaped protrusions are evenly arranged with the axis of the inner cylinder as the center. This increases the elasticity of the elastic element and improves the buffering effect.

[0019] 4. Both ends of the outer cylinder are provided with inward bending parts, and the bending parts abut against the corresponding end face of the elastic element, which improves the connection strength between the elastic element and the outer cylinder, thereby improving the service life of this bushing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the high-performance bushing.

[0021] Figure 2 This is a cross-sectional schematic diagram of this high-performance bushing.

[0022] Figure 3 This is a cross-sectional schematic diagram of another method for designing this high-performance bushing.

[0023] In the diagram, 1 is the outer cylinder; 1a is the bending part; 2 is the inner cylinder; 2a is the positioning groove; 3 is the elastic element; 3a is the first arc-shaped protrusion; 3b is the second arc-shaped protrusion; 3c is the buffer cavity; 4 is the spring; 5 is the plug; and 5a is the positioning protrusion. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figure 1 and 2 As shown, the high-performance bushing includes an outer cylinder 1 and an inner cylinder 2. An elastic element 3 is provided between the outer cylinder 1 and the inner cylinder 2. The side of the elastic element 3 has 3-8 buffer cavities 3c. The buffer cavities 3c are arranged radially along the inner cylinder 2 and are evenly distributed with the axis of the inner cylinder 2 as the center. A spring 4 is provided in the buffer cavity 3c, and the two ends of the spring 4 abut against the inner cylinder 2 and the outer cylinder 1, respectively. Preferably, the side of the elastic element 3 has 6 buffer cavities 3c.

[0026] A plug 5 is threaded onto the outer cylinder 1. The inner end of the plug 5 has a protruding positioning protrusion 5a. One end of the spring 4 is fitted onto the positioning protrusion 5a. The outer wall of the inner cylinder 2 has a positioning groove 2a, and the other end of the spring 4 is embedded in the positioning groove 2a. The two ends of the spring 4 are respectively connected to the positioning protrusion 5a of the plug 5 and the positioning groove 2a of the inner cylinder 2, which has a good positioning effect on the spring 4, prevents the spring 4 from shifting, and thus improves the buffering effect.

[0027] The upper inner edge of the elastic element 3 is provided with several arc-shaped protrusions 3a, and the arc-shaped protrusions 3a are evenly arranged with the axis of the inner cylinder 2 as the center. The lower inner edge of the elastic element 3 is provided with several arc-shaped protrusions 3b, and the arc-shaped protrusions 3b are evenly arranged with the axis of the inner cylinder 2 as the center. This increases the elasticity of the elastic element 3 and improves the buffering effect.

[0028] The outer cylinder 1, inner cylinder 2, and elastic element 3 are vulcanized integral molding structures, which have the advantages of convenient manufacturing and long service life. The inner cylinder 2 is made of high-strength steel, which improves the service life of this high-performance bushing.

[0029] As a preferred option, such as Figure 3 As shown, both ends of the outer cylinder 1 are provided with inwardly bent portions 1a, and the bent portions 1a abut against the corresponding end faces of the elastic element 3, which improves the connection strength between the elastic element 3 and the outer cylinder 1, thereby improving the service life of this bushing.

[0030] The aforementioned elastic element 3 is provided between the outer cylinder 1 and the inner cylinder 2. The buffer cavity 3c of the elastic element 3 is arranged along the radial direction of the inner cylinder 2. The elastic element 3 can buffer vibrations in different directions. The spring 4 in the buffer cavity 3c can buffer radial vibrations. Through the double buffering effect of the elastic element 3 and the spring 4, this bushing has the advantages of good buffering effect and reliable and stable structure.

[0031] As another method, the buffer cavity 3c is filled with damping fluid. The damping fluid in the buffer cavity 3c improves the shock absorption effect.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0033] Although this document frequently uses terms such as housing 1, body 1a, handle 1b, indicator direction 1c, positioning core 2, insertion hole 2a, positioning direction 2b, positioning seat 3, cavity 3a, and blocking piece 4, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A high-performance bushing, comprising an outer cylinder (1) and an inner cylinder (2), wherein an elastic element (3) is provided between the outer cylinder (1) and the inner cylinder (2), characterized in that, The elastic element (3) has several buffer cavities (3c) on its side. The buffer cavities (3c) are arranged radially along the inner cylinder (2) and are evenly arranged with the axis of the inner cylinder (2) as the center. A spring (4) is provided in the buffer cavity (3c). The two ends of the spring (4) abut against the inner cylinder (2) and the outer cylinder (1) respectively.

2. The high-performance bushing according to claim 1, characterized in that, The outer cylinder (1) is threaded with a plug (5), the inner end of the plug (5) is provided with a protruding positioning protrusion (5a), one end of the spring (4) is sleeved on the positioning protrusion (5a), the outer side wall of the inner cylinder (2) is provided with a positioning groove (2a), and the other end of the spring (4) is embedded in the positioning groove (2a).

3. The high-performance bushing according to claim 1, characterized in that, The number of springs (4) is 3-8 and they are evenly arranged around the axis of the inner cylinder (2).

4. The high-performance bushing according to claim 1, 2, or 3, characterized in that, The upper end of the elastic element (3) is provided with a plurality of arc-shaped protrusions (3a), and the arc-shaped protrusions (3a) are uniformly arranged with the axis of the inner cylinder (2) as the center.

5. The high-performance bushing according to claim 1, 2, or 3, characterized in that, The lower end of the elastic element (3) is provided with a plurality of arc-shaped protrusions (3b), and the arc-shaped protrusions (3b) are uniformly arranged with the axis of the inner cylinder (2) as the center.

6. The high-performance bushing according to claim 1, 2, or 3, characterized in that, The outer cylinder (1), inner cylinder (2) and elastic element (3) are vulcanized integral molding structures.

7. The high-performance bushing according to claim 1, 2, or 3, characterized in that, Both ends of the outer cylinder (1) are provided with inwardly bent portions (1a), and the bent portions (1a) abut against the corresponding end faces of the elastic member (3).

8. The high-performance bushing according to claim 1, 2, or 3, characterized in that, The inner cylinder (2) is made of high-strength steel.

9. The high-performance bushing according to claim 1, 2, or 3, characterized in that, The buffer cavity (3c) is filled with damping fluid.

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