Copper cover conductive bearing
By adopting a double-layer copper cover conductive bearing structure formed by a copper cover with a double-layer material, combined with the design of columns, through holes, bumps and grooves, the strength of the material with good conductivity is solved, and efficient conductive and long-life bearing dust cover is achieved.
Patent Information
- Application Number
- CN202421945571.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-08-12
AI Technical Summary
While existing bearings meet the conductive needs, the materials with good conductivity are poor in strength and other aspects, resulting in a short service life of the dust cover and need to be improved.
The structure of copper cover conductive bearings is adopted. The dustproof cover is made of double-layer material. The top layer is made of conductive material such as brass. The bottom layer is made of harder, tougher and stronger than the top layer. Through the fitting fixation of the embedded columns and through holes, the structural design of bumps and grooves can improve the stability and service life of the structure.
It achieves the improvement of the strength and service life of the bearing dust cover while meeting the conductive needs, making it easy to use, and avoids the shortcomings in the strength of the conductive material.
Smart Images
Figure CN222797951U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing devices, in particular to a copper-covered conductive bearing. Background Art
[0002] Bearings generally include an inner ring, an outer ring, balls, a cage and a dust cover. The balls and the cage are placed between the inner ring and the outer ring, and the dust cover is installed at the end between the inner ring and the outer ring. In some fields, bearings need to meet the requirements of conductivity. For example, companies on the market install conductive brushes on bearings. The structure is relatively complicated. Some companies change the dust cover to a material with better conductive properties to meet the conductive requirements. The defect is that materials with good conductive properties are generally poor in strength and other aspects, and the service life of the dust cover is not high, which needs to be improved. Utility Model Content
[0003] In order to solve at least one of the above technical defects, the utility model provides the following technical solutions:
[0004] The present application document discloses a copper-covered conductive bearing, comprising an inner ring, an outer ring, balls, a retaining frame and a dust cover, wherein the dust cover is located between the inner ring and the outer ring, the outer end of the dust cover contacts the outer ring and the inner end of the dust cover contacts the conductive grease in the dustproof groove on the inner ring, the dust cover comprises a top layer and a bottom layer that fit together, a plurality of embedded columns are arranged at intervals on the surface of the top layer facing the bottom layer and the embedded columns are embedded in through holes formed at corresponding positions of the bottom layer, the ends of the embedded columns are flush with or exceed the bottom surface of the bottom layer, the edges of the top layer contact the outer ring and the conductive grease in the dustproof groove, and the top layer is formed of a conductive material.
[0005] This solution improves the structure of the dust cover in the bearing. The top layer and the bottom layer are bonded together. The embedded columns and through holes at the top layer are fixed to improve the stability of the bonding between the top layer and the bottom layer. The top layer is formed of a conductive material, and the bottom layer can be formed of a material with better hardness, toughness, strength, etc. than the top layer material according to demand. The double-layer material can meet the requirements of conductivity while meeting the requirements of strength, etc., is easy to use, and has a longer service life.
[0006] Furthermore, bumps are arranged at intervals along the circumferential direction on the bottom surface of the edge of the top layer, and grooves are arranged at corresponding positions on the edge of the bottom layer. The bumps are embedded and fixed in the grooves, and the side surfaces of the bumps are flush with the circumferential surface of the bottom layer. The bumps formed at the edges are fixed to the grooves, which helps to improve the stability of the structure. The structure in which the side surfaces of the bumps are flush with the circumferential surface of the bottom layer facilitates contact with the outer ring and conductive grease to meet the conductivity requirements.
[0007] Furthermore, the embedded columns are concentrically distributed in a plurality of ring shapes at the bottom surface of the top layer, and the outer rings are arranged near the edge. The multiple embedded column ring-shaped distribution configuration helps to improve the stability of the fit between the top layer and the bottom layer.
[0008] Furthermore, the top layer is made of brass material and has good electrical conductivity.
[0009] Furthermore, the ball is formed of bearing steel and has high hardness and other properties.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. The utility model improves the structure of the dust cover in the bearing, and the double-layer material meets the requirements of conductivity and strength, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0013] Figure 1 is a schematic structural diagram of the copper cover conductive bearing in Example 1;
[0014] Figure 2 It is a schematic diagram of the structure of the dust cover;
[0015] Wherein, the accompanying drawings are marked as follows:
[0016] 1. Outer ring; 2. Inner ring; 3. Ball; 4. Cage; 5. Dust cover; 6. Conductive grease; 51. Top layer; 52. Bottom layer; 53. Embedded column; 54. Bump. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] Example 1
[0019] like Figure 1 , Figure 2 As shown, in this example, a copper cover conductive bearing includes an inner ring 2, an outer ring 1, balls 3, a retainer 4 and a dust cover 5. The dust cover 5 is located at the two ends between the inner ring 2 and the outer ring 1. The retainer 4 and the matching balls 3 are arranged between the inner ring 2 and the outer ring 1. The balls 3 are formed of bearing steel. This is a conventional technology and will not be repeated here.
[0020] In this example, the dust cover 5 includes a top layer 51 and a bottom layer 52 that are fitted and fixed together. The top layer 51 and the bottom layer 52 are both ring-shaped with the same size. The top layer 51 is formed of a conductive material, such as brass, and the bottom layer 52 is formed of a higher strength material to maintain the basic strength of the dust cover.
[0021] In this example, a plurality of embedded columns 53 are formed at intervals on the surface of the top layer 51 facing the bottom layer. For example, the embedded columns 53 are concentrically distributed on the bottom surface of the top layer in the shape of multiple rings, such as three rings. The outer rings are formed at the adjacent edges, and through holes are formed axially at corresponding positions of the bottom layer 52. The embedded columns 53 are embedded in the through holes and the ends of the embedded columns 53 are flush with or exceed the bottom surface of the bottom layer. The embedded columns are embedded and fixed for easy docking and fixation.
[0022] In this example, in order to maintain the stability of the edge of the top layer, protrusions 54 are formed at circumferential intervals on the bottom surface of the edge of the top layer 51, and notches, i.e., grooves, are formed at corresponding positions on the edge of the bottom layer 52. When the top layer and the bottom layer are fitted and fixed, the protrusions 54 are embedded and fixed in the grooves, and the side surfaces of the protrusions 54 are flush with the circumferential surface of the bottom layer 52.
[0023] Under this structure, when the outer edge of the dust cover abuts the outer ring, the protrusion at the top edge synchronously abuts the outer ring, and when the inner edge of the dust cover abuts the conductive grease in the dustproof groove of the inner ring, the protrusion at the top edge synchronously abuts the conductive grease, thereby simultaneously meeting the conductivity requirements.
[0024] When the bearing of this structure is in use, it can be conductive through the dust cover, which helps to increase the service life. The double-layer material can also meet the requirements of strength, etc., and is easy to use.
[0025] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.
Claims
1. A copper cover conductive bearing, comprising an inner ring, an outer ring, a ball, a cage and a dust cover, wherein the dust cover is located between the inner ring and the outer ring, the outer end of the dust cover contacts the outer ring and the inner end of the dust cover contacts the conductive grease in the dustproof groove on the inner ring, characterized in that: The dust cover includes a top layer and a bottom layer that fit together. A plurality of embedded columns are arranged at intervals on the surface of the top layer facing the bottom layer, and the embedded columns are embedded in through holes formed at corresponding positions of the bottom layer. The ends of the embedded columns are flush with or exceed the bottom surface of the bottom layer. The edges of the top layer are in contact with the conductive grease in the outer ring and the dustproof groove. The top layer is formed of a conductive material.
2. A copper-covered conductive bearing as claimed in claim 1, characterized in that: The bottom surface of the edge of the top layer is provided with protrusions at intervals along the circumferential direction, and the corresponding positions of the edge of the bottom layer are provided with embedding grooves, the protrusions are embedded and fixed in the embedding grooves, and the side surfaces of the protrusions are flush with the circumferential surface of the bottom layer.
3. A copper-covered conductive bearing as claimed in claim 1, characterized in that: The embedded columns are concentrically distributed on the bottom surface of the top layer in the shape of a plurality of ring bodies, and the outer ring bodies are arranged adjacent to the edge.
4. A copper-covered conductive bearing as claimed in claim 1, characterized in that: The top layer is formed of brass.
5. A copper-covered conductive bearing as claimed in claim 1, characterized in that: The ball is formed of bearing steel.