Corrosion-resistant high-toughness bearing seat
By coating multiple anti-corrosion layers on the surface of the bearing seat and using mixed powder materials, the corrosion resistance and toughness of the bearing seat in harsh environments is solved, and stable use in various environments is achieved.
Patent Information
- Application Number
- CN202421831632.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Existing metal bearing seats have poor corrosion resistance in harsh environments, are prone to rust and lack of toughness, especially in low temperature conditions, which are prone to cracking.
The anticorrosion layer is made of multi-layer coating composed of inorganic zinc-rich paint, epoxy cloud iron paint and fluorocarbon paint, and a mixed die-casting material is used to combine the anticorrosion layer and high-toughness material.
It improves the corrosion resistance and toughness of the bearing seat, expands the scope of use, and is suitable for a variety of harsh environments.
Smart Images
Figure CN223089807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing seats, and particularly relates to a corrosion-resistant and high-toughness bearing seat. Background Technique
[0002] A bearing seat, also known as a bearing housing, is an important external support for the shaft and bearing in a machine device, and is widely used in various transmission components. It is used together with the bearing to fix the bearing, bear the load and ensure the normal operation of the bearing.
[0003] At present, when the bearing seat is used in a harsh environment, the corrosion resistance of the bearing seat made of metal is poor, it is easy to age and rust, and the service life is low. In addition, the toughness of the metal bearing seat is poor, and it is easy to crack under low-temperature conditions.
[0004] Therefore, in view of the above problems, it is necessary for the applicant to design a corrosion-resistant and high-toughness bearing seat to solve the problems. Summary of the Invention
[0005] The purpose of the utility model is to provide a corrosion-resistant and high-toughness bearing seat to solve the problems mentioned in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A corrosion-resistant and high-toughness bearing seat, including a base, and mounting holes are provided on the top surface of the base. A bearing chamber for placing a bearing is provided on the top surface of the base, and a movable shell is provided in contact with the top surface of the bearing chamber. A groove is provided on the bottom surface of the base, a connecting screw is provided in the groove, and the end of the connecting screw away from the base penetrates through the top surface of the movable shell and is threadedly provided with a fixing nut. Anti-corrosion layers are coated on the outer surfaces of the base and the movable shell, and the anti-corrosion layer is successively a primer layer, a varnish layer and a topcoat layer from the inside to the outside.
[0007] Further, the primer layer is an epoxy zinc-rich paint, and the coating thickness of the epoxy zinc-rich paint is 40um - 60um.
[0008] Further, the varnish layer is an epoxy mica iron paint, and the coating thickness of the epoxy mica iron paint is 100um - 180um.
[0009] Further, the topcoat layer is a fluorocarbon paint, and the coating thickness of the fluorocarbon paint is 40um - 60um.
[0010] Further, the preferred thickness of the primer layer is 50um, the preferred thickness of the varnish layer is 150um, the preferred thickness of the topcoat layer is 50um, and the preferred total thickness of the anti-corrosion layer is 200um.
[0011] Further, both the base and the movable shell are formed by die-casting a mixture of graphite powder, silicon carbide powder and aluminum metal powder in a ratio of 1:1:3.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The corrosion-resistant and high-toughness bearing seat has strong corrosion resistance and high toughness, and can be used in a variety of harsh environments, with a wide range of applications. The specific content is as follows:
[0013] 1. A corrosion-resistant layer is provided, which is composed of a primer layer (8) coated with inorganic zinc-rich paint, a varnish layer coated with epoxy micaceous iron paint, and a topcoat layer coated with fluorocarbon paint. The high zinc content in the inorganic zinc-rich paint will provide cathodic protection and effectively prevent the corrosion of the base material. The epoxy micaceous iron paint has excellent corrosion resistance, adhesion, and wear resistance, facilitating the connection between the topcoat layer and the primer layer. The fluorocarbon paint has extremely long weather resistance and excellent corrosion resistance, facilitating the use of the bearing seat in harsh environments and having a wide range of applications.
[0014] 2. Both the base and the movable shell are formed by die-casting a mixture of graphite powder, silicon carbide powder, and aluminum metal powder in a ratio of 1:1:3. The advantages of graphite are good lubricity, toughness, high temperature resistance, corrosion resistance, and light weight, while the disadvantage is poor hardness and non-wear resistance. The advantages of silicon carbide are high material strength, good lubricity, corrosion resistance, wear resistance, high temperature resistance, and small friction coefficient, while the disadvantage is that the material is brittle and prone to cracking when subjected to impact force. The bearing seat formed by die-casting a mixture of graphite powder, silicon carbide powder, and aluminum metal powder will have high toughness, corrosion resistance, and lubricity, facilitating its use in harsh environments and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the overall disassembled structure of the present utility model;
[0017] Figure 3 is a schematic diagram of the cross-sectional plane structure of the wear-resistant layer of the present utility model.
[0018] In the figure: 1. Base; 2. Bearing chamber; 3. Movable shell; 4. Groove; 5. Connecting screw; 6. Fixed nut; 7. Mounting hole; 8. Primer layer; 9. Varnish layer; 10. Topcoat layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Such as Figures 1 - 3As shown in the figure, a corrosion-resistant and high-toughness bearing seat of the present utility model includes a base 1, and an installation hole 7 is provided on the top surface of the base 1. A bearing chamber 2 for placing a bearing is provided on the top surface of the base 1, and a movable shell 3 is provided in contact with the top surface of the bearing chamber 2. A groove 4 is provided on the bottom surface of the base 1, and a connecting screw 5 is provided in the groove 4. One end of the connecting screw 5 away from the base 1 penetrates through the top surface of the movable shell 3 and is threadedly provided with a fixing nut 6. Anticorrosion layers are coated on the outer surfaces of the base 1 and the movable shell 3, and the anticorrosion layer includes a primer layer 8, a varnish layer 9 and a topcoat layer 10 from inside to outside. The primer layer 8 is an inorganic zinc-rich paint, and the coating thickness of the inorganic zinc-rich paint is 40um - 60um. The varnish layer 9 is an epoxy mica iron paint, and the coating thickness of the epoxy mica iron paint is 100um - 180um. The topcoat layer 10 is a fluorocarbon paint, and the coating thickness of the fluorocarbon paint is 40um - 60um. The preferred thickness of the primer layer 8 is 50um, the preferred thickness of the varnish layer 9 is 150um, and the preferred thickness of the topcoat layer 10 is 50um. The preferred total thickness of the anticorrosion layer is 200um. The high zinc content contained in the inorganic zinc-rich paint will provide cathodic protection and effectively prevent the corrosion of the base material. The epoxy mica iron paint has excellent corrosion resistance, adhesion and wear resistance, which is convenient for connecting the topcoat layer and the primer layer. The fluorocarbon paint has extremely long weather resistance and excellent corrosion resistance, which is convenient for the bearing seat to be used in harsh environments and has a wide range of applications.
[0021] Both the base 1 and the movable shell 3 are formed by die-casting a mixture of graphite powder, silicon carbide powder and aluminum metal powder in a ratio of 1:1:3. The advantages of graphite are good lubricity, toughness, high temperature resistance, corrosion resistance and light weight, and the disadvantages are poor hardness and non-wear resistance. The advantages of silicon carbide are high material strength, good lubricity, corrosion resistance, wear resistance, high temperature resistance and small friction coefficient, and the disadvantages are that the material is brittle and easy to break when subjected to impact force. The bearing seat formed by die-casting a mixture of graphite powder, silicon carbide powder and aluminum metal powder will have high toughness, corrosion resistance and lubricity, which is convenient for use in harsh environments and has a wide range of applications.
[0022] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A corrosion-resistant and high-toughness bearing seat, characterized in that: It includes a base (1), and an installation hole (7) is provided on the top surface of the base (1). A bearing chamber (2) for placing a bearing is provided on the top surface of the base (1), and a movable shell (3) is in contact with the top surface of the bearing chamber (2). A groove (4) is provided on the bottom surface of the base (1). A connecting screw (5) is provided in the groove (4), and the end of the connecting screw (5) away from the base (1) penetrates through the top surface of the movable shell (3) and is threadedly provided with a fixing nut (6). Anticorrosion layers are coated on the outer surfaces of the base (1) and the movable shell (3), and the anticorrosion layer is successively a primer layer (8), a varnish layer (9), and a topcoat layer (10) from the inside to the outside.
2. The corrosion-resistant and high-toughness bearing housing according to claim 1, wherein: The primer layer (8) is an inorganic zinc-rich paint, and the coating thickness of the inorganic zinc-rich paint is 40um - 60um.
3. The corrosion-resistant and high-toughness bearing housing according to claim 2, wherein: The varnish layer (9) is an epoxy micaceous iron oxide paint, and the coating thickness of the epoxy micaceous iron oxide paint is 100um - 180um.
4. The corrosion-resistant and high-toughness bearing seat according to claim 3, characterized in that: The topcoat layer (10) is a fluorocarbon paint, and the coating thickness of the fluorocarbon paint is 40um - 60um.
5. The corrosion-resistant and high-toughness bearing seat according to claim 4, wherein: The thickness of the primer layer (8) is 50um, the thickness of the varnish layer (9) is 150um, the thickness of the topcoat layer (10) is 50um, and the total thickness of the anticorrosion layer is 200um.