Self-lubricating bearing
By optimizing the structural design of the self-lubricating bearing, the installation has been simplified, the sealing performance has been improved, and the oil outlet has been multi-stage. This solves the problems of complicated installation and poor self-lubrication effect in the existing technology, extends the equipment life and reduces the operating cost.
Patent Information
- Application Number
- CN202520138972.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing self-lubricating bearings are cumbersome to install and maintain, resulting in high operating costs and poor self-lubricating effect. They also require frequent manual maintenance, which affects their service life.
The design incorporates an outer bearing ring, an inner bearing ring, and an internal limiting ring structure. Combined with components such as sealing gaskets, balls, oil outlet plates, and guide plates, it achieves multi-stage sealing and auxiliary oil delivery, preventing impurities from entering and lubricating oil from leaking. The multi-stage oil delivery structure also extends the service life.
It simplifies the installation process, reduces costs, improves self-lubrication, extends equipment lifespan, and reduces the frequency of manual maintenance.
Smart Images

Figure CN223498455U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing equipment technology, and in particular to a self-lubricating bearing. Background Technology
[0002] Self-lubricating bearings are classified into composite material self-lubricating bearings, solid-inserted self-lubricating bearings, bimetallic material self-lubricating bearings, and special material self-lubricating bearings. Different self-lubricating bearings are selected according to different applications and operating conditions. Furthermore, self-lubricating bearings require little or no oil lubrication, meaning they require little to no maintenance during use.
[0003] In practice, the self-lubricating bearings in the existing technology require a lot of equipment for installation, which makes the installation and maintenance process more complicated and increases the overall installation and use costs. At the same time, the lack of multi-stage oil discharge treatment results in poor overall self-lubrication effect, which reduces the overall service life and requires frequent manual maintenance, causing many inconveniences and affecting normal use.
[0004] Therefore, this utility model provides a self-lubricating bearing. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing self-lubricating bearings, which require extensive equipment for installation, resulting in cumbersome installation and maintenance processes, increased overall installation costs, poor self-lubrication due to the lack of multi-stage oil discharge treatment, reduced lifespan, and the need for frequent manual maintenance, causing inconvenience and affecting normal use. This invention provides a self-lubricating bearing.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a self-lubricating bearing, including an outer bearing ring,
[0007] An inner bearing ring is installed inside the outer bearing ring, and a first oil reservoir plate is installed between the outer bearing ring and the inner bearing ring. Equally spaced balls are installed on the top of the first oil reservoir plate, and the balls are distributed in a circular shape on the surface of the first oil reservoir plate.
[0008] An internal limiting ring is installed inside the inner bearing ring;
[0009] The inner limiting ring is equipped with equidistantly distributed oil outlet plates, which are arranged in a ring shape on the inner wall of the inner limiting ring. The inner limiting ring is also equipped with equidistantly distributed guide plates, which are arranged in a ring shape inside the inner limiting ring. The oil outlet plates are located outside the guide plates. A sealing gasket is installed on the top of the inner limiting ring. The design of the sealing gasket improves the sealing effect of the inner limiting ring. The oil outlet plates assist in oil discharge, and the guide plates guide the oil discharge process.
[0010] In a preferred embodiment, an annular sealing strip is installed at the bottom of the internal limiting ring. The annular sealing strip is made of sponge and is used to prevent external impurities from entering the bearing and to prevent lubricating oil or grease from leaking.
[0011] The technical effect of adopting the above-mentioned further solution is that the annular sealing strip is used to prevent external impurities from entering the bearing and to prevent lubricating oil or grease from leaking.
[0012] In a preferred embodiment, the top of the ball bearing has equidistantly distributed oil outlet holes, which are staggered with the ball bearing. The inner bearing ring has a first oil outlet cavity extending into the inner limiting ring. The outer bearing ring and the inner bearing ring have a second oil outlet cavity. The second oil outlet cavity, in conjunction with the normal installation of the ball bearing and the first oil reservoir plate, ensures that oil can be normally discharged into the inner limiting ring.
[0013] The technical effect of adopting the above-mentioned further solution is that, while the second oil outlet chamber is properly installed in conjunction with the ball bearing and the first oil reservoir plate, it ensures that oil can be normally discharged into the inner limit ring.
[0014] In a preferred embodiment, the inner limiting ring has an internal mounting cavity for mounting with other connecting parts.
[0015] The technical advantage of adopting the above-mentioned further solution is that the mounting cavity is used to accommodate other connecting parts for installation.
[0016] In a preferred embodiment, an outer bearing top washer is installed on the top of the outer bearing ring, and an inner bearing top washer is installed on the top of the inner bearing ring. The design of the outer bearing top washer improves the sealing effect of both the outer and inner bearing rings. Symmetrically distributed sealing rods are installed inside each oil outlet plate, and each sealing rod has an oil outlet hole. Secondary oil discharge is achieved through the sealing rods and oil outlet holes, thereby extending the service life of the bearing.
[0017] The technical effects of adopting the above-mentioned further solutions are as follows: the sealing effect of the outer bearing ring is improved by the design of the top washer of the outer bearing, the sealing effect of the inner bearing ring is improved by the design of the top washer of the inner bearing, and the secondary oil discharge treatment is carried out by the sealing rod and the oil outlet hole, thereby extending the service life of the bearing.
[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0019] By configuring an outer bearing, an inner bearing ring, and an inner limiting ring, during use, the balls are distributed in a ring shape on the surface of the first oil reservoir. Equally spaced guide plates are installed inside the inner limiting ring, also in a ring shape. The sealing effect of the inner limiting ring is improved through the design of the sealing gasket. Oil is assisted by an oil outlet plate, and guided by the guide plates during oil discharge. An annular sealing strip prevents external impurities from entering the bearing and prevents lubricating oil or grease leakage. The inner limiting ring has an installation cavity for mounting with other connecting parts. Oil outlet holes and balls are staggered. The inner bearing ring has a section extending into the inner limiting ring. The first oil outlet chamber is provided, and a second oil outlet chamber is provided between the outer bearing ring and the inner bearing ring. The second oil outlet chamber, in conjunction with the ball bearing and the first oil reservoir plate, ensures normal oil flow to the inner limiting ring while the ball bearing and the first oil reservoir plate are installed. The top washer design of the outer bearing improves the sealing effect of the outer bearing ring, and the top washer design of the inner bearing improves the sealing effect of the inner bearing ring. Secondary oil flow is achieved through the sealing rod and the oil outlet hole, thereby extending the service life of the bearing. The overall structure does not require the assistance of electrical equipment for operation, which facilitates quick installation and saves on overall installation costs. It meets the needs of use and extends the service life of the equipment through multi-stage sealing. Attached Figure Description
[0020] Figure 1 A schematic diagram of the overall structure of a self-lubricating bearing provided by this utility model;
[0021] Figure 2 A schematic diagram of the internal structure of a self-lubricating bearing provided by this utility model;
[0022] Figure 3 A top view of the overall structure of a self-lubricating bearing provided by this utility model;
[0023] Figure 4 A bottom view of the overall structure of a self-lubricating bearing provided by this utility model.
[0024] Legend:
[0025] 1. Outer bearing ring; 11. Outer bearing top washer; 12. Inner bearing top washer;
[0026] 2. Inner bearing ring; 21. Ball bearing; 22. First oil reservoir plate; 23. Oil outlet hole;
[0027] 3. Internal limiting ring; 31. Oil outlet plate; 32. Sealing rod; 33. Guide plate; 34. Mounting cavity; 35. Annular sealing strip. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1-4 As shown, this embodiment provides a technical solution: a self-lubricating bearing, including an outer bearing ring 1, an inner bearing ring 2 installed inside the outer bearing ring 1, a first oil reservoir 22 installed between the outer bearing ring 1 and the inner bearing ring 2, and equidistantly distributed balls 21 installed on the top of the first oil reservoir 22, the balls 21 being distributed in a ring shape on the surface of the first oil reservoir 22; an inner limiting ring 3 installed inside the inner bearing ring 2; an oil outlet plate 31 equidistantly distributed inside the inner limiting ring 3, the oil outlet plate 31 being distributed in a ring shape on the inner wall of the inner limiting ring 3; an equidistantly distributed guide plate 33 installed inside the inner limiting ring 3, the guide plate 33 being distributed in a ring shape inside the inner limiting ring 3; the oil outlet plate 31 being located outside the guide plate 33; a sealing gasket installed on the top of the inner limiting ring 3, the sealing effect of the inner limiting ring 3 is improved by the design of the sealing gasket, and oil is discharged through the oil outlet plate 31. During oil discharge, the guide plate 33 guides the process. The oil outlet hole 23 and the ball bearing 21 are staggered. The inner bearing ring 2 has a first oil outlet chamber extending into the inner limiting ring 3. A second oil outlet chamber is formed between the outer bearing ring 1 and the inner bearing ring 2. The second oil outlet chamber, in conjunction with the ball bearing 21 and the first oil reservoir plate 22, ensures normal oil discharge into the inner limiting ring 3 while allowing normal installation. The design of the top washer 11 of the outer bearing improves the sealing effect of the outer bearing ring 1, and the design of the top washer 12 of the inner bearing improves the sealing effect of the inner bearing ring 2. The sealing rod 32 and the oil outlet hole 23 provide secondary oil discharge, thereby extending the service life of the bearing. The overall structure does not require the assistance of electrical equipment for operation, which facilitates quick installation and saves on overall installation costs. It meets the needs of use and extends the service life of the equipment through multi-stage sealing.
[0030] Going a step further, such as Figures 1-4 The bottom of the internal limiting ring 3 is equipped with an annular sealing strip 35. The annular sealing strip 35 is made of sponge and is used to prevent external impurities from entering the bearing and to prevent lubricating oil or grease from leaking. The sponge material design improves the impact resistance of the equipment. The internal limiting ring 3 has an installation cavity 34 inside, which is used to install other connecting parts.
[0031] Going a step further, such as Figures 1-4As shown: In this scheme, the top of the ball bearing 21 is provided with equidistantly distributed oil outlet holes 23, and the oil outlet holes 23 and the ball bearing 21 are staggered. The inner bearing ring 2 has a first oil outlet cavity extending into the inner limiting ring 3. The outer bearing ring 1 and the inner bearing ring 2 have a second oil outlet cavity. The second oil outlet cavity, in conjunction with the normal installation of the ball bearing 21 and the first oil storage plate 22, ensures that oil can be normally discharged into the inner limiting ring 3.
[0032] Going a step further, such as Figures 1-4 As shown, in this scheme, an outer bearing top washer 11 is installed on the top of the outer bearing ring 1, and an inner bearing top washer 12 is installed on the top of the inner bearing ring 2. The design of the outer bearing top washer 11 improves the sealing effect of the outer bearing ring 1, and the design of the inner bearing top washer 12 improves the sealing effect of the inner bearing ring 2. The oil outlet plate 31 is equipped with symmetrically distributed sealing rods 32, and each sealing rod 32 has an oil outlet hole 23. Secondary oil discharge treatment is performed through the sealing rods 32 and the oil outlet hole 23, thereby extending the service life of the bearing.
[0033] Working principle:
[0034] like Figure 1-4 As shown:
[0035] By setting an outer bearing 1, an inner bearing ring 2, and an inner limiting ring 3, the balls 21 are distributed in a ring shape on the surface of the first oil reservoir 22 during use. The inner limiting ring 3 is equipped with guide plates 33 that are evenly distributed inside. The guide plates 33 are distributed in a ring shape inside the inner limiting ring 3. The sealing effect of the inner limiting ring 3 is improved by the design of the sealing gasket.
[0036] Oil is discharged through the oil outlet plate 31 and guided by the guide plate 33. The annular sealing strip 35 is used to prevent external impurities from entering the bearing and to prevent lubricating oil or grease from leaking. The design of the sponge material improves the impact resistance of the equipment.
[0037] The inner limiting ring 3 has an internal mounting cavity 34, which is used to cooperate with other connecting parts for installation.
[0038] Oil outlet holes 23 and ball bearings 21 are staggered. The inner bearing ring 2 has a first oil outlet chamber that extends into the inner limiting ring 3. The outer bearing ring 1 and the inner bearing ring 2 have a second oil outlet chamber. The second oil outlet chamber, in conjunction with the ball bearings 21 and the first oil storage plate 22, ensures that oil can be normally discharged into the inner limiting ring 3 while the ball bearings 21 and the first oil storage plate 22 are properly installed.
[0039] The sealing effect of the outer bearing ring 1 is improved by the design of the top washer 11 of the outer bearing, and the sealing effect of the inner bearing ring 2 is improved by the design of the top washer 12 of the inner bearing.
[0040] Secondary oil discharge is achieved through the sealing rod 32 and the oil outlet 23, thereby extending the service life of the bearing.
[0041] The overall structure does not use electrical equipment for operation, which facilitates quick installation and saves on overall installation costs while meeting usage requirements. The multi-stage sealing method extends the service life of the equipment and meets usage requirements.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A self-lubricating bearing, comprising an outer bearing ring (1), characterized in that, An inner bearing ring (2) is installed inside the outer bearing ring (1). A first oil reservoir plate (22) is installed between the outer bearing ring (1) and the inner bearing ring (2). Equally spaced balls (21) are installed on the top of the first oil reservoir plate (22). The balls (21) are distributed in a circular shape on the surface of the first oil reservoir plate (22). An internal limiting ring (3) is installed inside the inner bearing ring (2); The inner limiting ring (3) is equipped with oil outlet plates (31) that are evenly distributed inside. The oil outlet plates (31) are distributed in a circular shape on the inner wall of the inner limiting ring (3). The inner limiting ring (3) is equipped with guide plates (33) that are evenly distributed inside. The guide plates (33) are distributed in a circular shape inside the inner limiting ring (3). The oil outlet plates (31) are located on the outside of the guide plates (33). A sealing gasket is installed on the top of the inner limiting ring (3).
2. The self-lubricating bearing according to claim 1, characterized in that: The bottom of the internal limiting ring (3) is equipped with an annular sealing strip (35), which is made of sponge and is used to prevent external impurities from entering the bearing.
3. The self-lubricating bearing according to claim 1, characterized in that: The top of the ball (21) is provided with oil outlet holes (23) that are evenly distributed, and the oil outlet holes (23) and the ball (21) are staggered.
4. The self-lubricating bearing according to claim 3, characterized in that: The inner bearing ring (2) has a first oil outlet cavity extending into the inner limiting ring (3), and the outer bearing ring (1) and the inner bearing ring (2) have a second oil outlet cavity.
5. The self-lubricating bearing according to claim 1, characterized in that: The internal limiting ring (3) has an installation cavity (34) inside, which is used to cooperate with other connecting parts for installation.
6. The self-lubricating bearing according to claim 1, characterized in that: The top of the outer bearing ring (1) is fitted with an outer bearing top washer (11), and the top of the inner bearing ring (2) is fitted with an inner bearing top washer (12).
7. The self-lubricating bearing according to claim 6, characterized in that: The oil outlet plate (31) is equipped with symmetrically distributed sealing rods (32), and each sealing rod (32) has an oil outlet hole (23) inside.