Efficient lubricating bearing

Abstract

The invention discloses an efficient lubricating bearing and relates to the technical field of bearings, the efficient lubricating bearing comprises an inner ring, an outer ring, a retainer and a steel ball, a plurality of limiting grooves are formed in the retainer, an oil storage plate is arranged in the retainer, an oil storage cavity is formed in the oil storage plate, an oil inlet hole is formed in the retainer, and a plurality of oil storage assemblies are arranged on the side wall, away from the retainer, of the oil storage plate; the outer wall of the steel ball abuts against the oil storage assembly, a plurality of oil supply assemblies are arranged in the oil storage plate, and the oil supply assemblies feed lubricating grease in the oil storage cavity into the oil storage assembly. According to the bearing, the oil storage plate is utilized, in the using process of the bearing, the steel ball can drive the retainer to rotate, when the retainer rotates, lubricating grease in the bearing can enter the oil storage cavity of the oil storage plate from the oil inlet hole, then the oil supply assembly feeds the lubricating grease in the oil storage cavity into the oil storage assembly, and the oil storage assembly stores the lubricating grease and continuously lubricates the steel ball; therefore, the friction force of the steel balls is reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of bearings, and in particular to a high-efficiency lubricating bearing. Background Art

[0002] A ball bearing is a type of rolling bearing, primarily composed of an inner ring, an outer ring, rolling steel balls, and a cage. The cage plays a crucial role: it effectively isolates the individual steel balls, preventing them from colliding or rubbing against each other; it also guides the steel balls to an even distribution on the raceway, ensuring proper movement and proper load distribution.

[0003] At present, there are multiple semicircular limit grooves formed on the retaining frame. After the two retaining frames are combined, the two limit grooves semi-enclose a steel ball. During the rotation of the bearing, grease can enter the limit groove from the opening of the limit groove and then lubricate the steel ball.

[0004] As the bearing rotates, the temperature inside the bearing rises, which reduces the viscosity of the grease and increases its fluidity. The smooth inner wall of the cage and the surface of the steel balls make it difficult for the grease to remain in the retaining grooves, increasing the friction between the balls and the cage and shortening the bearing's service life. Summary of the Invention

[0005] In order to increase the service life of a bearing, the present application provides a high-efficiency lubricated bearing.

[0006] The present application provides a high-efficiency lubricated bearing adopting the following technical solution:

[0007] A high-efficiency lubricated bearing comprises an inner ring, an outer ring, two retaining frames and a plurality of steel balls, wherein a plurality of limiting grooves are formed on the retaining frame, a receiving groove is provided on the inner wall of the retaining frame located in the limiting groove, an oil storage plate is provided on the retaining frame in the receiving groove, an oil storage cavity is formed on the side of the oil storage plate close to the retaining frame, an oil inlet hole is provided in the retaining frame, the oil inlet hole is connected to the oil storage cavity, a plurality of oil storage assemblies are provided on the side wall of the oil storage plate away from the retaining frame, the outer wall of the steel ball abuts the oil storage assembly, a plurality of oil supply assemblies are provided in the oil storage plate, and the oil supply assembly delivers the grease in the oil storage cavity into the oil storage assembly.

[0008] By adopting the above technical solution, during the use of the bearing, the steel ball will drive the retaining frame to rotate. When the retaining frame rotates, the grease in the bearing will enter the oil storage cavity of the oil storage plate from the oil inlet hole. Then the oil supply component will send the grease in the oil storage cavity into the oil storage component. The oil storage component stores the grease and continuously lubricates the steel ball, thereby reducing the friction of the steel ball and increasing the service life of the bearing.

[0009] Preferably, the oil storage assembly includes an oil storage frame and a plurality of support columns, the oil storage frame is fixedly arranged on the side wall of the oil storage plate away from the retaining frame, the support columns are fixedly arranged in the oil storage plate, the plurality of support columns are located in the oil storage frame, and the top ends of the plurality of support columns abut against the steel balls.

[0010] By adopting the above technical solution, the outer wall of the ball abuts against the top of the support column, and the oil supply component sends the grease in the oil storage chamber into the oil storage frame. The oil storage frame stores the grease, making it difficult for the grease to slip out of the retaining frame, thereby continuously lubricating the steel ball.

[0011] Preferably, the oil supply assembly includes a movable column, an oil supply plate, a spring and multiple oil supply columns, the movable column is slidably arranged in the oil storage plate, the oil supply plate is slidably arranged in the oil storage cavity, one end of the movable column is fixedly connected to the oil supply plate, and the other end abuts the steel ball, the spring is arranged on the side wall of the oil storage plate away from the movable column, the spring abuts the retaining frame located on the inner wall of the accommodating groove, multiple oil supply columns are arranged on the side wall of the oil storage plate close to the movable column, multiple oil supply holes are opened in the oil storage plate, multiple oil supply columns are slidably arranged in the multiple oil supply holes, and the steel ball is floated between the two oil storage plates.

[0012] By adopting the above technical solution, the shrapnel drives the end of the movable column to move and abut against the steel ball through the oil supply plate. The steel ball floats between the two oil storage plates. During the floating process, the steel ball will push the movable column to move back and forth in the oil storage plate. The movable column drives the oil supply column to slide back and forth in and out of the oil supply hole through the oil supply plate. During the continuous entry and exit of the oil supply column, the grease in the oil storage cavity is injected into the oil storage frame through the oil supply hole, so that there is always grease in the oil storage frame.

[0013] Preferably, the support columns pass through an oil supply plate, and the oil supply plate is slidably arranged on a plurality of support columns.

[0014] By adopting the above technical solution, the support column guides the movement of the oil supply plate, thereby making the reciprocating movement of the oil supply plate more stable.

[0015] Preferably, the end of the oil storage frame away from the oil storage plate is provided with a chamfer.

[0016] By adopting the above technical solution, the chamfers at the ends of the oil storage frames facilitate the mutual communication of grease in each oil storage frame, thereby further improving the lubrication effect of the steel balls.

[0017] Preferably, the oil storage frame is in the shape of a regular hexagon, and a plurality of the oil storage frames are arranged in a honeycomb shape.

[0018] By adopting the above technical solution, one oil storage frame is connected to multiple other oil storage frames, thereby facilitating the delivery of the grease in one oil storage frame into multiple other oil storage frames.

[0019] Preferably, a support seat is fixedly provided at the end of the support column away from the steel ball, and the support seat abuts against the inner wall of the retaining frame located at the accommodating groove.

[0020] By adopting the above technical solution, the support seat reinforces the support column, making the support column more stable when abutting against the steel ball.

[0021] Preferably, a scraper is provided on the outer side wall of the retaining frame, and the scraper is located at the open end of the oil inlet hole.

[0022] By adopting the above technical solution, the retaining frame drives the scraper to rotate during the rotation process, and the scraper collects the grease in the bearing at the oil inlet hole, thereby facilitating the grease to enter the oil storage cavity from the oil inlet hole.

[0023] Preferably, there are two oil inlet holes, and two scrapers are provided. The two scrapers are located on the side where the two oil inlet holes are close to each other, and the ends of the two scrapers away from the retaining frame are inclined in a direction away from each other.

[0024] By adopting the above technical solution, two scrapers and oil inlet holes are installed on the retaining frame, so that grease can be delivered to the oil storage cavity when the bearing rotates forward or reverse.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. With the oil storage plate, when the bearing is in use, the steel ball drives the cage to rotate. When the cage rotates, the grease in the bearing enters the oil storage cavity of the oil storage plate from the oil inlet hole. Then the oil supply assembly sends the grease in the oil storage cavity into the oil storage assembly. The oil storage assembly stores the grease and continuously lubricates the steel ball, thereby reducing the friction of the steel ball and increasing the service life of the bearing.

[0027] 2. With the help of the oil storage assembly, the outer wall of the ball abuts against the top of the support column. The oil supply assembly sends the grease in the oil storage chamber into the oil storage frame. The oil storage frame stores the grease, making it difficult for the grease to slip out of the cage, thereby continuously lubricating the steel ball;

[0028] 3. Through the oil supply assembly, the shrapnel drives the end of the movable column to move and abut against the steel ball through the oil supply plate. The steel ball floats between the two oil storage plates. During the floating process, the steel ball will push the movable column to move back and forth in the oil storage plate. The movable column drives the oil supply column to slide out and enter the oil supply hole through the oil supply plate. During the continuous entry and exit of the oil supply column, the grease in the oil storage cavity is injected into the oil storage frame through the oil supply hole, so that there is always grease in the oil storage frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency lubricated bearing in this application;

[0030] Figure 2 This is a partial structural diagram of the high-efficiency lubricated bearing of this application, highlighting the cage;

[0031] Figure 3 This is a partial structural diagram of the high-efficiency lubricated bearing of this application, highlighting the limit groove;

[0032] Figure 4 For this application, the highly efficient lubricated bearing is a forward exploded view showing part of the structure of the oil storage plate;

[0033] Figure 5 For this application, the highly efficient lubricated bearing is shown in a reverse exploded view to highlight the partial structure of the oil storage plate;

[0034] Figure 6 This is a partial structural diagram of the high-efficiency lubricated bearing of this application, highlighting the oil storage component;

[0035] Figure 7 For this application, the highly efficient lubrication of the bearing is a forward exploded view showing part of the structure of the oil supply assembly;

[0036] Figure 8 For the purpose of efficiently lubricating the bearing in this application, a reverse exploded view is shown to highlight part of the structure of the oil supply component.

[0037] Figure numerals: 1. Inner ring; 2. Outer ring; 3. Retaining frame; 4. Steel ball; 5. Limiting groove; 6. Accommodating groove; 7. Oil storage plate; 8. Oil storage assembly; 81. Oil storage frame; 82. Support column; 9. Oil supply assembly; 91. Moving column; 92. Oil supply plate; 93. Shrapnel; 94. Oil supply column; 10. Oil storage chamber; 11. Oil inlet hole; 12. Oil supply hole; 13. Chamfer; 14. Support seat; 15. Scraper; 16. Raceway; 17. Baffle. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1-8 This application is described in further detail.

[0039] The embodiment of the present application discloses a high-efficiency lubricating bearing.

[0040] Reference Figure 1 and Figure 2 A high-efficiency lubricated bearing includes an inner ring 1, an outer ring 2, two retaining frames 3 and multiple steel balls 4. Raceways 16 are provided on the outer side wall of the inner ring 1 and the inner side wall of the outer ring 2, and multiple steel balls 4 are rolled in the two raceways 16.

[0041] Reference Figure 2 and Figure 3Each retaining frame 3 is formed with multiple limiting grooves 5 at equal intervals along its own circumference. The two retaining frames 3 are fixedly connected by rivets or screws, and the two limiting grooves 5 at the same position on the two retaining frames 3 semi-enclose one steel ball 4.

[0042] Reference Figure 4 and Figure 5 The retainer 3 has an arc-shaped receiving groove 6 on the inner side wall of each limiting groove 5. The retainer 3 has an arc-shaped oil storage plate 7 mounted in each receiving groove 6. The steel ball 4 is floatingly mounted between the two oil storage plates 7. Each oil storage plate 7 has an arc-shaped oil storage cavity 10 formed on the side wall near the retainer 3.

[0043] Two oil inlet holes 11 are spaced apart and formed on the outer wall of the retainer 3, corresponding to each receiving slot 6. The openings of these oil inlet holes 11 are rectangular and parallel to each other. Two scrapers 15 are fixedly mounted on the outer wall of the retainer 3, corresponding to each receiving slot 6. Baffles 17 are fixedly mounted at both ends of each scraper 15 in a direction perpendicular to the scraper 15. The two scrapers 15 are located on the side of the oil inlet holes 11 that is closest to each other, and are tilted away from each other on the side away from the retainer 3.

[0044] The high-efficiency lubricated bearings of the present application are medium-to-large bearings used in reciprocating equipment. When in use, the bearings often rotate forward and reverse. During the reciprocating rotation of the bearings, the steel balls 4 roll within the raceways 16, which drive the retaining frame 3 to rotate, and the retaining frame 3 drives the scraper 15 to rotate. During the rotation of the scraper 15, the grease in the bearing is scraped to the opening of the oil inlet hole 11. Under the action of the two baffles 17, the grease enters the oil storage chamber 10 of the oil storage plate 7 through the oil inlet hole 11 for storage.

[0045] A plurality of oil storage assemblies 8 are installed on the side wall of the oil storage plate 7 away from the oil storage cavity 10, and a plurality of oil supply assemblies 9 are installed in the oil storage plate 7. The plurality of oil supply assemblies 9 correspond one-to-one to the plurality of oil storage assemblies 8, and the oil supply assemblies 9 deliver the grease in the oil storage cavity 10 into the oil storage assembly 8.

[0046] During the use of the bearing, the oil supply component 9 delivers the grease in the oil storage chamber 10 into the oil storage component 8. The outer wall of the steel ball 4 abuts against multiple oil storage components 8. The oil storage component 8 stores the grease and continuously lubricates the steel ball 4, thereby reducing the friction of the steel ball 4 and increasing the service life of the bearing.

[0047] Reference Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8Specifically, the oil storage assembly 8 includes an oil storage frame 81 and six support columns 82. The oil storage frame 81 is fixedly mounted on the side wall of the oil storage plate 7 close to the steel ball 4. The oil storage frame 81 is a regular hexagon. One side wall of each adjacent two oil storage frames 81 abuts against each other, and multiple oil storage frames 81 are in contact in sequence and arranged in a honeycomb shape.

[0048] The support columns 82 are fixedly mounted within the oil reservoir plate 7. All six support columns 82 are located within the oil reservoir frame 81 and are evenly spaced along the circumference of the oil reservoir frame 81. The ends of the support columns 82 facing away from the steel balls 4 extend into the oil reservoir cavity 10. The ends of the support columns 82 facing away from the steel balls 4 are fixedly mounted on the support seats 14. The support seats 14 abut against the inner wall of the retainer 3 located within the receiving groove 6. The ends of the support columns 82 facing away from the support seats 14 abut against the steel balls 4.

[0049] The outer wall of the ball forms an abutting relationship with the top of the support column 82. This fitting method not only ensures the stability of the steel ball 4, but also creates basic conditions for subsequent lubrication operations. When the bearing is running, the oil supply component 9 transports the grease pre-stored in the oil storage chamber 10 to the inside of the oil storage frame 81. The oil storage frame 81 effectively preserves the grease by virtue of its regular hexagonal cavity structure. The oil storage frame 81 can cleverly limit the flow range of the grease, preventing the grease from easily sliding out of the retaining frame 3 due to equipment vibration or centrifugal force generated by the rotation of the ball. Through the coordinated cooperation of the support column 82 and the oil storage frame 81, the grease can always be stably retained in the working area around the ball, thereby continuously providing lubrication support for the rotation of the steel ball 4, reducing friction loss, and ensuring the long-term and efficient operation of the bearing.

[0050] Specifically, the oil supply assembly 9 includes a movable post 91, an oil supply plate 92, two springs 93, and six oil supply posts 94. The movable post 91 is slidably mounted within the oil reservoir plate 7 along the diameter of the steel ball 4. One end of the movable post 91 abuts the steel ball 4, and the other end of the movable post 91 extends into the oil reservoir cavity 10. The oil supply plate 92 is located within the oil reservoir cavity 10 of the oil reservoir plate 7. The oil supply plate 92 is fixedly connected to the end of the movable post 91 away from the steel ball 4 and is slidably mounted on the six support posts 82.

[0051] The oil reservoir plate 7 is provided with an oil supply hole 12 between each pair of adjacent support columns 82. The ends of the oil supply holes 12 communicate with the oil reservoir chamber 10. Six oil supply columns 94 are fixedly mounted on the sidewall of the oil supply plate 92 near the movable column 91, with each of the six oil supply columns 94 corresponding to the six oil supply holes 12. Two spring clips 93 are fixedly mounted on the sidewall of the oil supply plate 92 away from the oil supply columns 94. The spring clips 93 are V-shaped, with the ends of the spring clips 93 away from the oil supply plate 92 abutting the inner wall of the retainer 3 located in the receiving slot 6.

[0052] The steel ball 4 is mounted in a floating position between the two oil reservoirs 7, allowing for sufficient space for subsequent dynamic operation. When the spring 93 begins to function, it generates thrust through the oil supply plate 92, which in turn displaces the end of the movable column 91, causing it to abut against the surface of the steel ball 4.

[0053] The steel ball 4, located between the two oil storage plates 7, reacts on the movable column 91 during its floating process, causing it to reciprocate inside the oil storage plates 7. As the movable column 91 moves back and forth, the oil supply plate 92 connected to it also moves synchronously, thereby driving the oil supply column 94 to slide in and out of the oil supply hole 12 continuously.

[0054] As the oil supply column 94 continuously moves in and out, the grease in the oil storage chamber 10 is continuously squeezed and injected into the interior of the oil storage frame 81 through the oil supply hole 12. The oil storage frame 81 is able to always maintain sufficient grease reserves, providing a stable and reliable guarantee for subsequent lubrication work.

[0055] Chamfers 13 are formed on opposite sides of the oil reservoir 81, away from the end of the oil reservoir plate 7. These chamfers 13 smooth out the sharp corners at the ends of the oil reservoir 81, creating a smooth transition between adjacent oil reservoirs 81. As grease flows through the oil reservoirs 81, the presence of the chamfers 13 allows the grease within each oil reservoir 81 to flow more smoothly. This allows for more flexible allocation of grease between the multiple oil reservoirs 81, ensuring that the steel balls 4 receive adequate lubrication at different locations. This further enhances the lubrication of the steel balls 4 and reduces the possibility of wear on the steel balls 4 due to insufficient local lubrication.

[0056] Furthermore, when multiple regular hexagonal oil storage frames 81 are arranged in a honeycomb pattern, each oil storage frame 81 is tightly connected to multiple surrounding oil storage frames 81, forming a highly efficient interconnected grid. This structure provides a more diverse and convenient grease delivery path. When a large amount of grease is present in one oil storage frame 81, it can be quickly and smoothly transferred to the surrounding oil storage frames 81, achieving efficient distribution of grease throughout the entire system of oil storage frames 81. This ensures that each oil storage frame 81 maintains an appropriate amount of grease, providing continuous and uniform lubrication support for the steel balls 4, significantly enhancing the overall performance of the lubrication system.

[0057] The implementation principle of an efficient lubricating bearing in an embodiment of the present application is as follows: during the reciprocating rotation of the bearing, the steel ball 4 will roll in the raceway 16, the steel ball 4 will drive the retaining frame 3 to rotate, and the retaining frame 3 will drive the scraper 15 to rotate. During the rotation of the scraper 15, the grease in the bearing will be scraped to the opening of the oil inlet hole 11. Under the action of the two baffles 17, the grease enters the oil storage cavity 10 of the oil storage plate 7 through the oil inlet hole 11 for storage.

[0058] As the steel ball 4 floats between the two oil reservoir plates 7, it reacts on the movable column 91, causing it to reciprocate within the oil reservoir plates 7. As the movable column 91 reciprocates, the connected oil supply plate 92 also moves synchronously, driving the oil supply column 94 to continuously slide in and out of the oil supply hole 12. As the oil supply column 94 continuously moves in and out, the grease in the oil reservoir chamber 10 is continuously squeezed through the oil supply hole 12 and injected into the oil reservoir frame 81, ensuring that the oil reservoir 81 always has a sufficient supply of grease.

[0059] The oil reservoir 81, with its regular hexagonal cavity, effectively preserves the grease. It cleverly limits the grease's flow, preventing it from easily escaping from the cage 3 due to equipment vibration or centrifugal forces generated by the ball's rotation. The coordinated cooperation between the support column 82 and the oil reservoir 81 ensures that the grease remains stably within the working area surrounding the ball, providing continuous lubrication support for the rotation of the steel ball 4, reducing frictional losses and ensuring the long-term, efficient operation of the bearing.

[0060] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A high-efficiency lubricating bearing, comprising an inner ring (1), an outer ring (2), two retaining frames (3) and a plurality of steel balls (4), wherein a plurality of limiting grooves (5) are formed on the retaining frames (3), and characterized in that: The retaining frame (3) is provided with a receiving groove (6) on the inner wall of the limiting groove (5), and the retaining frame (3) is provided with an oil storage plate (7) in the receiving groove (6). The oil storage plate (7) is provided with an oil storage cavity (10) on the side close to the retaining frame (3), and an oil inlet hole (11) is provided in the retaining frame (3). The oil inlet hole (11) is communicated with the oil storage cavity (10). A plurality of oil storage components (8) are provided on the side wall of the oil storage plate (7) away from the retaining frame (3). The outer wall of the steel ball (4) abuts against the oil storage component (8). A plurality of oil supply components (9) are provided in the oil storage plate (7), and the oil supply component (9) delivers the grease in the oil storage cavity (10) into the oil storage component (8).

2. The high-efficiency lubricating bearing according to claim 1, characterized in that: The oil storage assembly (8) comprises an oil storage frame (81) and a plurality of support columns (82). The oil storage frame (81) is fixedly arranged on the side wall of the oil storage plate (7) away from the retaining frame (3). The support columns (82) are fixedly arranged in the oil storage plate (7). The plurality of support columns (82) are located in the oil storage frame (81), and the top ends of the plurality of support columns (82) abut against the steel balls (4).

3. The high-efficiency lubricating bearing according to claim 2, characterized in that: The oil supply assembly (9) includes a movable column (91), an oil supply plate (92), a spring piece (93) and a plurality of oil supply columns (94). The movable column (91) is slidably arranged in the oil storage plate (7), and the oil supply plate (92) is slidably arranged in the oil storage cavity (10). One end of the movable column (91) is fixedly connected to the oil supply plate (92), and the other end abuts the steel ball (4). The spring piece (93) is arranged on the side wall of the oil storage plate (7) away from the movable column (91). The spring piece (93) abuts the inner wall of the retaining frame (3) located in the accommodating groove (6). The plurality of oil supply columns (94) are arranged on the side wall of the oil storage plate (7) close to the movable column (91). The oil storage plate (7) is provided with a plurality of oil supply holes (12). The plurality of oil supply columns (94) are slidably arranged in the plurality of oil supply holes (12). The steel ball (4) is floatingly arranged between the two oil storage plates (7).

4. The high-efficiency lubricating bearing according to claim 3, characterized in that: The plurality of support columns (82) pass through the oil supply plate (92), and the oil supply plate (92) is slidably arranged on the plurality of support columns (82).

5. The high-efficiency lubricating bearing according to claim 2, characterized in that: The end of the oil storage frame (81) away from the oil storage plate (7) is provided with a chamfer (13).

6. The high-efficiency lubricating bearing according to claim 5, characterized in that: The oil storage frame (81) is in a regular hexagonal shape, and a plurality of the oil storage frames (81) are arranged in a honeycomb shape.

7. The high-efficiency lubricating bearing according to claim 2, characterized in that: A support seat (14) is fixedly provided at the end of the support column (82) away from the steel ball (4), and the support seat (14) abuts against the inner wall of the retaining frame (3) located in the accommodating groove (6).

8. The high-efficiency lubricating bearing according to claim 1, characterized in that: A scraper (15) is provided on the outer side wall of the retainer (3), and the scraper (15) is located at the opening end of the oil inlet hole (11).

9. The high-efficiency lubricating bearing according to claim 8, characterized in that: Two oil inlet holes (11) are provided, and two scrapers (15) are provided. The two scrapers (15) are located on the side where the two oil inlet holes (11) are close to each other, and the ends of the two scrapers (15) away from the retaining frame (3) are inclined in a direction away from each other.

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