Impact-resistant oilless bearing

Abstract

The utility model relates to the technical field of oilless bearings, in particular to an impact-resistant oilless bearing, which comprises a bearing body, a hollow area is arranged in the bearing body, a plurality of cross-shaped fastening structures are filled between two side surfaces in the hollow area, and each cross-shaped fastening structure consists of two support plates which are fixedly arranged at 90 degrees. A plurality of through holes communicated with the hollow area are evenly formed in the side face of the bearing body. The oil-free bushing solves the problem that an existing oil-free bushing is poor in impact resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-free bearings, in particular to an impact-resistant oil-free bearing. Background Art

[0002] Oil-free bushings, also known as oil-free bearings, are bearings that do not require additional lubrication and are typically used in applications requiring low maintenance and long life. They are designed to maintain good operating performance without external lubrication. Oil-free bushings are typically made of self-lubricating materials that reduce friction and wear under dry-running conditions.

[0003] Most existing oil-free bushing structures are metal bearings with several holes on the side of the metal bearings. The holes are filled with graphite for lubrication. However, in automobile suspension systems or heavy engineering machinery, oil-free bushings are susceptible to frequent impacts. The existing bushing structure cannot withstand frequent impacts and is easily damaged. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing oil-free bushing has poor impact resistance.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is an impact-resistant oil-free bearing, including a bearing body, a hollow area is opened inside the bearing body, and the two side surfaces of the hollow area are filled by a number of cross fastening structures. The cross fastening structure is composed of two support plates fixed at 90 degrees, and a number of through holes connected to the hollow area are evenly opened on the side of the bearing body.

[0006] As a further solution of the present invention: the inner edge of the through hole is an irregular curve, and both ends of the through hole are located on the inner and outer sides of the bearing body and are chamfered into the through hole, which can slow down the consumption rate of graphite and prevent it from wearing too quickly.

[0007] As a further solution of the present invention, a plurality of cross fastening structures are closely and orderly arranged in the hollow area, so as to improve the overall supporting strength of the bearing body.

[0008] As a further solution of the present invention: the through holes and the hollow areas are filled with graphite material.

[0009] As a further solution of the present invention: the bearing body is made of an aluminum-based composite material, which has a certain supporting strength and self-lubricating effect.

[0010] Compared with the prior art, the advantages of the present invention are as follows: the present invention adds a hollow area structure and several cross fastening structures. The cross fastening structure composed of the support plates can absorb part of the impact force when the bearing is impacted, thereby improving the overall impact resistance of the bearing body. In addition, by filling the hollow area with graphite, it can also play a certain buffering role. At the same time, it can also increase the reserves of graphite in the bearing and improve the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a three-dimensional diagram of the overall structure of an impact-resistant oil-free bearing of the utility model.

[0013] Figure 2 This is a partial structural section of an impact-resistant oil-free bearing of the utility model. Figure 1 .

[0014] Figure 3 This is a partial structural section of an impact-resistant oil-free bearing of the utility model. Figure 2 .

[0015] Figure 4 This is an enlarged view of the structure of part A in an impact-resistant oil-free bearing of the utility model.

[0016] In the attached figure:

[0017] 1. Bearing body; 2. Cross fastening structure; 3. Graphite material; 1.1. Hollow area; 1.2. Through hole; 2.1. Support plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model provides a technical solution for solving the existing problems raised in the background technology.

[0020] Combined with attachment Figure 1-4It can be seen that it includes a bearing body 1, which is made of an aluminum-based composite material with certain supporting strength and self-lubricating effect. A hollow area 1.1 is opened inside the bearing body 1. The two sides of the hollow area 1.1 are filled with a plurality of cross fastening structures 2. The cross fastening structure 2 is composed of two support plates 2.1 fixedly arranged at 90 degrees. A plurality of through holes 1.2 connected to the hollow area 1.1 are evenly opened on the side of the bearing body 1. The through holes 1.2 and the hollow area 1.1 are filled with graphite material 3.

[0021] The inner edge of the through hole 1.2 is an irregular curve, and both ends of the through hole 1.2 are located on the inner and outer sides of the bearing body 1 and are chamfered into the through hole 1.2, which can slow down the consumption rate of graphite and prevent it from wearing too quickly; several cross fastening structures 2 are tightly and orderly arranged in the hollow area 1.1 to improve the overall support strength of the bearing body 1.

[0022] The working principle of this application is: when the bearing body 1 is impacted, several cross fastening structures 2 in its internal hollow area 1.1 can absorb part of the impact, improve the impact resistance of the bearing body 1, and the graphite material 3 filled in the hollow area 1.1 can also reduce part of the impact force.

[0023] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. An impact-resistant oil-free bearing, comprising a bearing body (1), characterized in that: A hollow area (1.1) is provided inside the bearing body (1), and a plurality of cross-fastening structures (2) are provided between two side surfaces of the hollow area (1.1). The cross-fastening structures (2) are composed of two support plates (2.1) fixedly arranged at a 90-degree angle. A plurality of through holes (1.2) connected to the hollow area (1.1) are evenly provided on the side surfaces of the bearing body (1).

2. The impact-resistant oil-free bearing according to claim 1, characterized in that: The inner edge of the through hole (1.2) is in an irregular curve shape, and both ends of the through hole (1.2) are located on the inner and outer sides of the bearing body (1) and are chamfered toward the inside of the through hole (1.2).

3. The impact-resistant oil-free bearing according to claim 1, characterized in that: Several cross fastening structures (2) are closely and orderly arranged in the hollow area (1.1).

4. The impact-resistant oil-free bearing according to claim 1, characterized in that: The through hole (1.2) and the hollow area (1.1) are filled with graphite material (3).

5. The impact-resistant oil-free bearing according to claim 1, characterized in that: The bearing body (1) is made of an aluminum-based composite material.

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