Thrust ball bearing
By setting a sealing ring and sealing ring on the outside of the cage of the thrust ball bearing, combined with the groove design of the shaft ring and the seat ring, the problem of bearings being susceptible to contamination in harsh environments is solved, and a higher sealing and service life is achieved.
Patent Information
- Application Number
- CN202421564981.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-04
AI Technical Summary
Existing thrust ball bearings are susceptible to external impurities and moisture in harsh environments, resulting in grease contamination and early failure.
A thrust ball bearing is designed. By setting a sealing ring and a sealing ring on the outside of the cage, the seat ring, the cage and the shaft ring are connected to form a sealing structure, and the rolling element is wrapped through the grooves of the shaft ring and the seat ring to increase the The area of stress of the rolling element.
It effectively prevents external impurities and moisture from entering the bearing, improves the sealing and service life of the bearing, and enhances the load capacity of the rolling element.
Smart Images
Figure CN222526704U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of thrust ball bearings, in particular to a thrust ball bearing. Background Art
[0002] A thrust ball bearing is a bearing used to withstand axial force and is commonly used in various large-scale mechanical equipment. It usually includes a seat ring, a shaft ring, a plurality of rollers and a retaining frame that forms a spacing guide for the plurality of rollers. The seat ring is arranged on a fixed component, and the shaft ring is connected to a rotating shaft. A raceway for loading a plurality of rollers is formed between the seat ring and the shaft ring. However, the thrust ball bearing of the prior art only forms a sealing gap between the retaining frame, the seat ring and the shaft ring, which has a certain shielding effect and needs to rely on the lubricating oil circulation system in the equipment components. When the thrust ball is used to be exposed to the external environment, especially in some harsh environments, it is easy for external impurities, moisture and other adverse factors to enter the interior of the bearing and contaminate the grease, thereby causing the bearing to fail early. Utility Model Content
[0003] The purpose of the utility model is to solve the following problems existing in the prior art: the thrust ball bearing of the prior art only has a sealing gap formed between the retaining frame, the seat ring and the shaft ring, which has a certain shielding effect, and needs to rely on the lubricating oil circulation system in the equipment components. When the thrust ball is used to be exposed to the external environment, especially in some harsh environments, it is easy for external impurities, moisture and other adverse factors to enter the interior of the bearing and contaminate the grease, thereby causing early failure of the bearing.
[0004] In order to solve the problems existing in the prior art, the utility model provides a thrust ball bearing, including a seat ring, a shaft ring arranged above the seat ring, a retaining frame placed between the seat ring and the shaft ring, and a plurality of rolling bodies arranged on the retaining frame and connected to the seat ring and the shaft ring, two sealing rings connected to the seat ring and the shaft ring are provided on the outside of the retaining frame respectively, and sealing rings connected to the retaining frame are provided on the inner side of the top end of the seat ring and the inner side of the bottom end of the shaft ring and located in the middle of the seat ring.
[0005] Preferably, the seat ring and the shaft ring are arranged symmetrically, the top end of the seat ring and the bottom end of the shaft ring are both provided with grooves, and the retaining frame is located inside the grooves of the seat ring and the shaft ring.
[0006] Preferably, there is a gap between the retaining frame and the inner walls of the grooves of the seat ring and the shaft ring, and the gap value is a positive value.
[0007] Preferably, the bottom ends of the grooves of the shaft ring and the seat ring are both provided with moving grooves, and the upper and lower ends of the rolling body are respectively located inside the moving grooves of the shaft ring and the seat ring.
[0008] Preferably, the thickness of the retaining frame is located in the middle of the rolling body, and the thickness of the retaining frame is less than or equal to one third of the diameter of the rolling body.
[0009] Preferably, the moving grooves of the shaft ring and the seat ring are respectively wrapped around the upper and lower ends of the rolling body located on the upper and lower surfaces of the retaining frame.
[0010] Preferably, the outer side of the retaining frame and the inner wall of the inner side of the groove of the seat ring and the shaft ring and close to the outer side are both provided with mounting grooves, and the two sealing rings are respectively located between the mounting grooves of the seat ring and the retaining frame and between the mounting grooves of the shaft ring and the retaining frame.
[0011] Preferably, the inner side of the retaining frame and the inner wall of the inner side of the groove of the seat ring and the shaft ring and close to the middle are both provided with fixing grooves, and the two sealing rings are respectively located between the mounting groove of the seat ring and the retaining frame and between the mounting groove of the shaft ring and the retaining frame.
[0012] Preferably, there is a gap between the seat ring and the shaft ring, and the gap between the seat ring and the shaft ring is 0.1mm-3mm.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model connects the seat ring, the cage and the shaft ring into one body by means of a sealing ring and a sealing ring installed on the outer side of the cage and the inner side of the seat ring and the shaft ring, so that the movement of the bearing is more convenient and the connection is sealed. The upper and lower ends of the rolling body are respectively wrapped by the moving grooves in the grooves of the shaft ring and the seat ring, so that when the rolling body rolls on the inner sides of the moving grooves of the seat ring and the shaft ring, the arc surface area of the rolling body connecting the seat ring and the shaft ring is increased, the force-bearing area of the rolling body is increased, the rolling body can withstand a certain radial force, and the service life of the bearing is increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;
[0017] Figure 3 It is a schematic cross-sectional view of a quarter of the overall structure of the utility model;
[0018] Reference numerals: 1, seat ring; 2, shaft ring; 3, rolling element; 4, retaining frame; 5, sealing ring; 6, sealing ring. DETAILED DESCRIPTION
[0019] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0020] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.
[0021] Example 1
[0022] like Figure 1-3 As shown, a thrust ball bearing comprises a seat ring 1, a shaft ring 2 arranged above the seat ring 1, a retaining frame 4 placed between the seat ring 1 and the shaft ring 2, and a plurality of rolling bodies 3 arranged on the retaining frame 4 and connected to the seat ring 1 and the shaft ring 2, two sealing rings 5 respectively connected to the seat ring 1 and the shaft ring 2 are arranged on the outer side of the retaining frame 4, and a sealing ring 6 connected to the retaining frame 4 is arranged on the inner side of the top end of the seat ring 1 and the inner side of the bottom end of the shaft ring 2 and located in the middle of the seat ring 1.
[0023] The seat ring 1 and the shaft ring 2 are arranged symmetrically, and grooves are provided at the top of the seat ring 1 and the bottom of the shaft ring 2. The retaining frame 4 is located on the inner side of the grooves of the seat ring 1 and the shaft ring 2. The retaining frame 4 is wrapped by the grooves of the seat ring 1 and the shaft ring 2 and the multiple rolling bodies 3 installed on the rolling bodies 3 cooperate with the movable grooves of the shaft ring 2, so the installation of the rolling bodies 3 and the retaining frame 4 is relatively convenient.
[0024] The outer side of the retainer 4 and the inner side of the groove of the seat ring 1 and the shaft ring 2 and the inner wall close to the outer side are provided with mounting grooves. Two sealing rings 5 are respectively located between the mounting grooves of the seat ring 1 and the retainer 4 and between the mounting grooves of the shaft ring 2 and the retainer 4. The inner side of the retainer 4 and the inner side of the groove of the seat ring 1 and the shaft ring 2 and the inner wall close to the middle are provided with fixing grooves. Two sealing rings 6 are respectively located between the mounting grooves of the seat ring 1 and the retainer 4 and between the mounting grooves of the shaft ring 2 and the retainer 4, so that the rolling body 3 is sealed between the seat ring 1 and the shaft ring 2, and the seat ring 1, the shaft ring 2 and the retainer 4 are connected to the sealing ring 6 and the sealing ring 5 through the groove to form an integral body, so that the installation of the bearing is more convenient.
[0025] There is a gap between the retaining frame 4 and the inner wall of the groove of the seat washer 1 and the shaft washer 2, and the gap value is a positive value to avoid friction between the seat washer 1, the shaft washer 2 and the retaining frame 4, which may cause damage to the bearing.
[0026] The bottom ends of the grooves of the shaft ring 2 and the seat ring 1 are both provided with moving grooves, and the upper and lower ends of the rolling body 3 are respectively located on the inner sides of the moving grooves of the shaft ring 2 and the seat ring 1, wherein the thickness of the retaining frame 4 is located in the middle of the rolling body 3, and the thickness of the retaining frame 4 is less than or equal to one third of the diameter of the rolling body 3, and the moving grooves of the seat ring 1 and the shaft ring 2 are wrapped around the upper and lower ends of the rolling body 3 with a larger contact area, so that when the rolling body 3 rolls on the inner sides of the moving grooves of the seat ring 1 and the shaft ring 2, the arc surface area connecting the rolling body 3 with the seat ring 1 and the shaft ring 2 is increased, thereby increasing the force-bearing area of the rolling body 3, so that the rolling body 3 can withstand a certain radial force, thereby increasing the service life of the bearing.
[0027] There is a gap between the seat ring 1 and the shaft ring 2, and the gap between the seat ring 1 and the shaft ring 2 is 0.1mm-3mm. When in use, friction can be prevented from being generated between the seat ring 1 and the shaft ring 2.
[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A thrust ball bearing, characterized in that: The invention comprises a seat ring (1), a shaft ring (2) arranged above the seat ring (1), a retaining frame (4) placed between the seat ring (1) and the shaft ring (2), and a plurality of rolling bodies (3) arranged on the retaining frame (4) and connected to the seat ring (1) and the shaft ring (2); two sealing rings (5) respectively connected to the seat ring (1) and the shaft ring (2) are arranged on the outer side of the retaining frame (4); and a sealing ring (6) connected to the retaining frame (4) is arranged on the inner side of the top end of the seat ring (1) and the inner side of the bottom end of the shaft ring (2) and located in the middle of the seat ring (1).
2. A thrust ball bearing according to claim 1, characterized in that: The seat ring (1) and the shaft ring (2) are arranged symmetrically, the top end of the seat ring (1) and the bottom end of the shaft ring (2) are both provided with grooves, and the retaining frame (4) is located inside the grooves of the seat ring (1) and the shaft ring (2).
3. A thrust ball bearing according to claim 1, characterized in that: The retaining frame (4) has a gap with the inner walls of the grooves of the seat ring (1) and the shaft ring (2), and the gap value is a positive value.
4. A thrust ball bearing according to claim 1, characterized in that: The bottom ends of the grooves of the shaft ring (2) and the seat ring (1) are both provided with moving grooves, and the upper and lower ends of the rolling body (3) are respectively located inside the moving grooves of the shaft ring (2) and the seat ring (1).
5. A thrust ball bearing according to claim 1, characterized in that: The thickness of the retaining frame (4) is located in the middle of the rolling body (3), and the thickness of the retaining frame (4) is less than or equal to one third of the diameter of the rolling body (3).
6. A thrust ball bearing according to claim 1, characterized in that: The movable grooves of the shaft ring (2) and the seat ring (1) are respectively wrapped around the upper and lower ends of the rolling body (3) located on the upper and lower surfaces of the retaining frame (4).
7. A thrust ball bearing according to claim 1, characterized in that: The outer side of the retaining frame (4) and the inner side of the grooves of the seat ring (1) and the shaft ring (2) and the inner wall close to the outer side are provided with mounting grooves, and the two sealing rings (5) are respectively located between the mounting grooves of the seat ring (1) and the retaining frame (4) and between the mounting grooves of the shaft ring (2) and the retaining frame (4).
8. A thrust ball bearing according to claim 1, characterized in that: The inner side of the retaining frame (4) and the inner side of the grooves of the seat ring (1) and the shaft ring (2) and the inner wall near the middle are both provided with fixing grooves, and the two sealing rings (6) are respectively located between the mounting grooves of the seat ring (1) and the retaining frame (4) and between the mounting grooves of the shaft ring (2) and the retaining frame (4).
9. A thrust ball bearing according to claim 1, characterized in that: There is a gap between the seat ring (1) and the shaft ring (2), and the gap between the seat ring (1) and the shaft ring (2) is 0.1 mm-3 mm.