Bearing retainer
By designing a bearing cage with limiting grooves, lubrication grooves, and oil cavity structures, the problems of lubricating oil splashing and unevenness were solved, achieving uniform application and continuous supply of lubricating oil, and extending the service life of the bearing.
Patent Information
- Application Number
- CN202520212076.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing bearing cages are prone to oil spillage and uneven lubrication during lubrication, leading to increased friction and shortened service life.
A bearing cage was designed, comprising a limiting groove, a lubrication groove, and an oil cavity structure. It is fixed to the outer ring with screws, and the lubricating oil is stored in the oil cavity. When rotating, it is evenly applied to the outside of the rolling elements to achieve continuous lubrication.
It achieves uniform application of lubricating oil, reduces friction, lowers frictional temperature rise, extends bearing life, and prevents lubricating oil oxidation.
Smart Images
Figure CN223662378U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of retainer, especially to a bearing retainer. BACKGROUND
[0002] Bearing retainer is also called bearing holder, which is a bearing part that partially wraps all or part of rolling elements and moves with them, and is used to isolate rolling elements, usually guiding and retaining rolling elements in the bearing, and is one of the important components of the bearing.
[0003] In the prior art, after the rolling elements are placed in the rolling ball holes of the common bearing retainer, the rolling elements need to be lubricated during the use of the bearing, and the lubrication method is usually to pour lubricating oil directly on the rolling elements, which can cause splashing of excess lubricating oil and cannot uniformly lubricate the rolling elements. Long-term contact of the lubricating oil with air can cause oxidation and deterioration of the lubricating oil, which can lose the original performance. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a bearing retainer, which has the advantages of uniform lubrication and continuous lubrication, and solves the problems raised in the background art.
[0005] The utility model provides the following technical scheme: a bearing retainer, comprising a bearing, the bearing comprising an outer ring, an inner ring, rolling elements being movably arranged in a circular array between the outer ring and the inner ring, thread holes being uniformly arranged on both sides of the outer ring in a circular shape, a retainer being fixedly installed on both sides of the bearing, the retainer comprising a left side frame and a right side frame, the left side frame and the right side frame being installed on both sides of the bearing, and mounting holes being arranged on the surface of the left side frame and the right side frame at positions corresponding to the thread holes.
[0006] Through the above structure, when the device is used, the inside of the retainer is filled with lubricating oil and sealed, and when the bearing moves, the rolling elements rotate to evenly apply the lubricating oil in the retainer to the outside of the rolling elements, thereby reducing the relative friction and slowing down the temperature rise due to friction between the rolling elements and the outer ring and the inner ring, and prolonging the service life of the bearing.
[0007] Preferably, a screw is installed in the mounting hole and the thread hole, a thread groove is arranged in the inner ring of the thread hole, the outer ring of the screw is provided with threads, the threads of the screw are matched with the thread groove of the thread hole, and the retainer is installed on both sides of the outer ring through the screw.
[0008] Through the above structure, the lubricating oil in the retainer will not leak outside the bearing and the retainer, which protects the lubricating oil and avoids oxidation of the lubricating oil due to excessive contact with air.
[0009] Preferably, the left and right side frames are provided with limiting grooves at positions corresponding to the rolling bodies, the inner circle of the limiting grooves is in close contact with the outer circle of the rolling bodies, the left and right side frames are internally provided with oil cavities, the surface of the left and right side frames is provided with through holes, the through holes are in communication with the oil cavities, and the through holes are fixedly installed with sealing covers.
[0010] Through the above structure, the rolling bodies are in contact with the lubricating oil in the lubricating grooves during rotation, and the outer circle of the rolling bodies is coated with lubricating oil after one rotation, thereby achieving uniform coating.
[0011] Preferably, the left and right side frames are provided with lubricating grooves, the lubricating grooves are located at the two sides of the rolling bodies, the lubricating grooves are in communication with the oil cavities, the oil cavities are internally provided with lubricating oil, and the lubricating grooves are arc-shaped.
[0012] Through the above structure, the lubricating oil slides to the rolling bodies through the inner wall of the lubricating grooves, and the rolling bodies are in contact with the lubricating oil during rotation, so that the lubricating oil is uniformly distributed on the outer circle of the rolling bodies after rotation.
[0013] The utility model has the following effects:
[0014] 1. The bearing retainer, through the setting of retainer, limiting groove, lubricating groove and other structures, realizes uniform lubrication, when the inner sleeve ring rotates, the inner sleeve ring drives the rolling bodies to rotate due to friction, the rolling bodies are in contact with the lubricating oil during rotation, the outer circle of the rolling bodies is uniformly coated with lubricating oil after one rotation, uniform coating is realized, when the rolling bodies rotate in the bearing, the relative friction is reduced, the temperature rise due to friction between the rolling bodies and the outer sleeve ring and the inner sleeve ring is slowed down, the service life of the bearing is prolonged, and the effect of uniform lubrication is achieved.
[0015] 2. The bearing retainer, through the setting of sealing cover, oil cavity, lubricating groove and other structures, realizes the effect of continuous lubrication, the sealing cover is opened, lubricating oil is added to the oil cavity through the through hole, after the oil cavity is filled with lubricating oil, the through hole is plugged with the sealing cover, when the inner sleeve ring rotates, the rolling bodies are driven to rotate due to friction, when the rolling bodies rotate, the inner wall of the lubricating groove and the inner wall of the oil cavity are on the same horizontal line, the lubricating oil in the oil cavity flows into the lubricating groove, due to the friction between the lubricating oil and the inner sleeve ring, the outer sleeve ring and the retainer during the rolling of the rolling bodies, part of the lubricating oil is evaporated, through the setting of the oil cavity, the rolling bodies are continuously supplied with lubricating oil, and the effect of continuous lubrication is realized. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the utility model;
[0017] Figure 2It is the overall structure explosion schematic view of the utility model;
[0018] Figure 3 It is the cage structure schematic view of the utility model;
[0019] Figure 4 It is the cage structure internal schematic view of the utility model.
[0020] In the drawing: 1, bearing; 12, inner race; 13, rolling element; 14, threaded hole; 2, cage; 21, left side frame; 22, right side frame; 23, mounting hole; 24, screw; 25, sealing cover; 26, limiting groove; 27, oil cavity; 28, lubricating groove. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0022] Please refer to Figures 1-2 A bearing cage, comprising a bearing 1, the bearing 1 comprising an outer race, an inner race 12, the outer race and the inner race 12 being uniformly movably installed with rolling elements 13 in a circular ring array, the outer race being uniformly provided with threaded holes 14 on both sides in a circular ring shape, the bearing 1 being fixedly installed with a cage 2 on both sides, the cage 2 comprising a left side frame 21 and a right side frame 22, the left side frame 21 and the right side frame 22 being installed on both sides of the bearing 1, and the left side frame 21 and the right side frame 22 being provided with mounting holes 23 at positions corresponding to the threaded holes 14.
[0023] When the device is used, the inside of the cage 2 is filled with lubricating oil and sealed, and when the bearing 1 moves, the rolling elements 13 rotate to uniformly apply the lubricating oil in the cage 2 to the outside of the rolling elements 13, so that when the rolling elements 13 rotate in the bearing 1, the relative friction is reduced, the temperature rise due to friction between the rolling elements 13 and the outer race and the inner race 12 is reduced, and the service life of the bearing 1 is prolonged.
[0024] Please refer to Figures 1-4 A screw 24 is installed in the mounting hole 23 and the threaded hole 14, a threaded groove is formed in the inner ring of the threaded hole 14, the outer ring of the screw 24 is provided with threads, the screw 24 and the threaded hole 14 are threadedly matched, and the cage 2 is installed on both sides of the outer race through the screw 24.
[0025] By setting the mounting hole 23 and the threaded hole 14, the retainer 2 can be fixed on both sides of the outer sleeve by the screw 24. Since the retainer 2 and the rolling body 13 are shape-fitted, the rolling body 13 can be limited in a specific position, the lubricating oil in the retainer 2 cannot leak outside the bearing 1 and the retainer 2, which protects the lubricating oil from oxidation due to excessive contact with air.
[0026] Please refer to Figures 1-4 The left side frame 21 and the right side frame 22 are provided with a limiting groove 26 corresponding to the position of the rolling body 13. The inner circle of the limiting groove 26 is in close contact with the outer circle of the rolling body 13, and the rolling body 13 can rotate inside the limiting groove 26. The left side frame 21 and the right side frame 22 are provided with an oil cavity 27 inside. The surface of the left side frame 21 and the right side frame 22 is provided with a through hole, which is in communication with the oil cavity 27. The through hole is fixedly provided with a sealing cover 25.
[0027] After opening the sealing cover 25, lubricating oil can be added to the oil cavity 27 through the through hole. After filling the oil cavity 27 with lubricating oil, the through hole is sealed with the sealing cover 25. When the inner sleeve 12 rotates, the rolling body 13 rotates due to friction. When the rolling body 13 rotates, the inner wall of the lubricating groove 28 and the inner wall of the oil cavity 27 are on the same horizontal line. The lubricating oil in the oil cavity 27 flows into the lubricating groove 28. When the rolling body 13 rotates, it contacts with the lubricating oil in the lubricating groove 28. After the rolling body 13 rotates one round, the outer circle of the rolling body 13 is coated with lubricating oil, which achieves the effect of uniform coating.
[0028] Please refer to Figures 1-4 The left side frame 21 and the right side frame 22 are provided with a lubricating groove 28, which is located on both sides of the rolling body 13. The lubricating groove 28 is in communication with the oil cavity 27. The oil cavity 27 is provided with lubricating oil. The lubricating groove 28 is arc-shaped, so that when the lubricating oil fills the oil cavity 27, it can slide along the inner wall of the lubricating groove 28 to the rolling body 13. When the rolling body 13 rotates, it contacts with the lubricating oil, so that the lubricating oil uniformly covers the outer circle of the rolling body 13 after the rolling body 13 rotates, which achieves the effect of continuous lubrication.
[0029] Working principle: the left frame 21 and right frame 22 are installed on both sides of bearing 1, through the installation hole 23 and the position of the threaded hole 14, using screw 24 screw into the inside of threaded hole 14, between the retainer 2 and bearing 1 is fixed, after the fixed rolling body 13 is located in the limit groove 26, open the sealing cover 25, the oil cavity 27 is filled with lubricating oil, using sealing cover 25 to seal the hole, when the drive inner race 12 rotates, the inner race 12 will drive the rolling body 13 to rotate due to friction, the rolling body 13 can only rotate in the limit groove 26 due to the limitation of the limit groove 26, the lubricating oil in the oil cavity 27 will flow to the rolling body 13 direction according to the arc edge of the lubricating groove 28, the rolling body 13 rotates and contacts with the lubricating oil, after the rolling body 13 rotates a circle, the lubricating oil is evenly coated on the outer ring of the rolling body 13, realizing uniform coating.
Claims
1. A bearing cage, comprising a bearing (1), characterized in that: The bearing (1) includes an outer ring and an inner ring (12). Rolling elements (13) are evenly and movably mounted in a circular array between the outer ring and the inner ring (12). Threaded holes (14) are evenly and circularly opened on both sides of the outer ring. Cages (2) are fixedly installed on both sides of the bearing (1). The cages (2) include a left cage (21) and a right cage (22). The left cage (21) and the right cage (22) are installed on both sides of the bearing (1). Mounting holes (23) are opened on the surfaces of the left cage (21) and the right cage (22) at the corresponding positions of the threaded holes (14). The left cage (21) and the right cage (22) are located at the positions of the rolling elements (13). A limiting groove (26) is provided at the corresponding location. The inner ring of the limiting groove (26) is in contact with the outer ring of the rolling element (13). An oil cavity (27) is provided inside the left side frame (21) and the right side frame (22). A through hole is provided on the surface of the left side frame (21) and the right side frame (22). The through hole is connected to the oil cavity (27). A sealing cover (25) is fixedly installed inside the through hole. A lubrication groove (28) is provided on the left side frame (21) and the right side frame (22). The lubrication groove (28) is located on both sides of the rolling element (13). The lubrication groove (28) is connected to the oil cavity (27). Lubricating oil is provided inside the oil cavity (27). The lubrication groove (28) is arc-shaped.
2. A bearing cage according to claim 1, characterized in that: Screws (24) are installed inside the mounting hole (23) and the threaded hole (14). The inner ring of the threaded hole (14) has a threaded groove, and the outer ring of the screw (24) has a thread. The screw (24) and the threaded hole (14) are threaded to match. The retainer (2) is installed on both sides of the outer ring by screws (24).