CN219035323U - Biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing - Google Patents
Biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing Download PDFInfo
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- CN219035323U CN219035323U CN202320191029.7U CN202320191029U CN219035323U CN 219035323 U CN219035323 U CN 219035323U CN 202320191029 U CN202320191029 U CN 202320191029U CN 219035323 U CN219035323 U CN 219035323U
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- bearing
- bearing bush
- silicon nitride
- sliding
- oil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model discloses a biomedical application-oriented surface spraying silicon nitride ceramic sliding bearing, which comprises a bearing bush and a shaft neck, wherein the surface of the bearing bush is provided with a sliding groove, the shaft neck is embedded in the sliding groove and is in sliding connection with the bearing bush, the surface of the bearing bush is provided with oil injection holes, the surface of the shaft neck is provided with oil rings, the oil rings are symmetrically distributed on two sides of the oil injection holes, and the surfaces of the bearing bush and the shaft neck are provided with plating layers. Compared with a pure ceramic sliding bearing, the utility model has the advantages that the surface hardness and the whole toughness of the sliding bearing can be improved by adopting the silicon nitride ceramic coating sprayed on the surfaces of the journal and the bearing bush of the 316L sliding bearing as the base material, and the sliding bearing journal and the bearing bush are installed in a clearance fit manner.
Description
Technical Field
The utility model relates to the technical field of biological medicine, in particular to a surface-sprayed silicon nitride ceramic sliding bearing for biological medicine application.
Background
In the biomedical industry, the reasonable design of the biological reaction equipment has very important significance for ensuring the production quality, and the biological reaction equipment is suitable for cell culture in the fields of antibodies, vaccines, blood products, cell therapy and gene therapy. Some cell culture fluids require stirring, oxygenation, and other procedures, and bearings are required to constrain the rotating member.
The traditional ceramic roller bearing has the problems of large installation size and complex installation structure; and ceramic sliding bearings have the problem of insufficient overall toughness and are fragile when subjected to impact loads. For this reason, a new solution needs to be designed to solve.
Disclosure of Invention
The utility model aims to provide a biomedical application-oriented surface spraying silicon nitride ceramic sliding bearing, which solves the problems of large installation size and fragility when bearing impact load of a ceramic roller bearing in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the surface spraying silicon nitride ceramic sliding bearing for biomedical application comprises a bearing bush and a shaft neck, wherein a sliding groove is formed in the surface of the bearing bush, the shaft neck is embedded in the sliding groove and is in sliding connection with the bearing bush, an oil filling hole is formed in the surface of the bearing bush, oil rings are arranged on the surface of the shaft neck and symmetrically distributed on two sides of the oil filling hole, and plating layers are arranged on the surfaces of the bearing bush and the shaft neck.
As an improvement of the technical scheme, the bearing bush and the shaft neck are made of 316L material.
As an improvement of the technical scheme, the coating is uniformly sprayed on the surfaces of the bearing bush and the shaft neck by adopting silicon nitride ceramics.
As an improvement of the technical scheme, the outer diameter of the shaft neck is smaller than the inner diameter of the sliding groove, and the bearing bush and the shaft neck are installed in a clearance fit mode.
As the improvement of the technical scheme, the inner wall of the bearing bush is provided with the oil guide groove which is communicated with the oil filling hole.
Compared with the prior art, the utility model has the following beneficial effects:
compared with a pure ceramic sliding bearing, the utility model has the advantages that the surface hardness and the whole toughness of the sliding bearing can be improved by adopting the silicon nitride ceramic coating sprayed on the surfaces of the journal and the bearing bush of the 316L sliding bearing as the base material, and the sliding bearing journal and the bearing bush are installed in a clearance fit manner.
Drawings
FIG. 1 is a schematic diagram of a cross-sectional structure of a surface-sprayed silicon nitride ceramic sliding bearing for biomedical applications according to the present utility model;
fig. 2 is a schematic cross-sectional view of a bearing shell according to the present utility model.
In the figure: bearing bush-1, journal-2, sliding groove-3, oil filler hole-4, oil ring-5, coating-6, oil guiding groove-7.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a surface spraying silicon nitride ceramic sliding bearing towards biological medicine application, includes axle bush 1 and axle journal 2, sliding groove 3 has been seted up on the surface of axle bush 1, axle journal 2 is embedded in sliding groove 3 and with axle bush 1 sliding connection, oil filler point 4 has been seted up on the surface of axle bush 1, oil ring 5 has been seted up on the surface of axle journal 2, oil ring 5 symmetric distribution is in the both sides of oil filler point 4, the surface of axle bush 1 and axle journal 2 is equipped with cladding material 6.
Further improved, the bearing bush 1 and the shaft neck 2 are made of 316L material, and the whole toughness of the sliding bearing is ensured by using the 316L material to make the bearing bush 1 and the shaft neck 2.
Further improved, the coating 6 is uniformly sprayed on the surfaces of the bearing bush 1 and the journal 2 by adopting silicon nitride ceramic, and the hardness of the surface of the sliding bearing is improved by adopting silicon nitride ceramic material to be sprayed on the surfaces of the bearing bush 1 and the journal 2.
Further improved, the outer diameter of the journal 2 is smaller than the inner diameter of the sliding groove 3, the bearing bush 1 and the journal 2 are installed in a clearance fit mode, and compared with a traditional interference fit ceramic roller bearing, the bearing bush 1 and the journal 2 are installed in a clearance fit mode, and the bearing bush has the characteristics of being smaller in installation size and simpler in installation structure.
Specifically, the inner wall of the bearing bush 1 is provided with the oil guide groove 7, the oil guide groove 7 is communicated with the oil injection hole 4, and lubricating oil is conveniently led into the oil ring 5 through the oil guide groove 7 arranged on the inner wall of the bearing bush 1, so that the sliding smoothness between the journal 2 and the bearing bush 1 is improved.
Compared with a plain ceramic sliding bearing, the utility model has the advantages that the base material adopts the surface of the journal 2 and the bearing bush 1 of the 316L sliding bearing to be sprayed with the silicon nitride ceramic coating, the surface hardness and the whole toughness of the sliding bearing can be improved, the journal 2 and the bearing bush 1 of the sliding bearing are installed in a clearance fit manner, and compared with the traditional ceramic roller bearing adopting interference fit, the installation size is smaller, and the installation structure is simpler.
When the sliding bearing is used, lubricating oil is injected along the oil injection hole 4, the lubricating oil flows into the oil ring 5 on the surface of the journal 2 along the diversion trench, the sliding smoothness of the sliding bearing is improved, the sliding bearing is made of 316L material, the toughness of the sliding bearing is ensured, the integral impact load bearing capacity of the sliding bearing is improved, and the abrasion resistance of the surface of the sliding bearing is improved by matching with the silicon nitride ceramic coating sprayed on the surface.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The surface spraying silicon nitride ceramic sliding bearing for biomedical application comprises a bearing bush (1) and a shaft neck (2), and is characterized in that: the oil-filling device is characterized in that a sliding groove (3) is formed in the surface of the bearing bush (1), the shaft journal (2) is embedded in the sliding groove (3) and is in sliding connection with the bearing bush (1), an oil filling hole (4) is formed in the surface of the bearing bush (1), oil rings (5) are formed in the surface of the shaft journal (2), the oil rings (5) are symmetrically distributed on two sides of the oil filling hole (4), and a plating layer (6) is arranged on the surfaces of the bearing bush (1) and the shaft journal (2).
2. The biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing of claim 1, wherein: the bearing bush (1) and the shaft neck (2) are made of 316L material.
3. The biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing of claim 1, wherein: the coating (6) is uniformly sprayed on the surfaces of the bearing bush (1) and the shaft neck (2) by adopting silicon nitride ceramics.
4. The biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing of claim 1, wherein: the outer diameter of the shaft neck (2) is smaller than the inner diameter of the sliding groove (3), and the bearing bush (1) and the shaft neck (2) are installed in a clearance fit mode.
5. The biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing of claim 1, wherein: an oil guide groove (7) is formed in the inner wall of the bearing bush (1), and the oil guide groove (7) is communicated with the oil injection hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191029.7U CN219035323U (en) | 2023-02-13 | 2023-02-13 | Biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191029.7U CN219035323U (en) | 2023-02-13 | 2023-02-13 | Biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219035323U true CN219035323U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320191029.7U Active CN219035323U (en) | 2023-02-13 | 2023-02-13 | Biomedical application-oriented surface-sprayed silicon nitride ceramic sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219035323U (en) |
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2023
- 2023-02-13 CN CN202320191029.7U patent/CN219035323U/en active Active
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