Highly efficient lubricated bearing

Abstract

The application discloses a high-efficiency lubricated bearing, relates to the technical field of bearings, and comprises an inner ring, an outer ring, a retainer and steel balls, 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, a plurality of oil storage assemblies are arranged on the side wall of the oil storage plate away from the retainer, 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 send the lubricating grease in the oil storage cavity into the oil storage assembly. In the application, the oil storage plate is utilized, the steel ball drives the retainer to rotate in the bearing use process, the lubricating grease in the bearing enters the oil storage cavity of the oil storage plate from the oil inlet hole when the retainer rotates, then the oil supply assembly sends the lubricating grease in the oil storage cavity into the oil storage assembly, the oil storage assembly stores the lubricating grease and continuously lubricates the steel ball, so that the friction of the steel ball is reduced, and the service life of the bearing is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bearings, in particular to a high-efficiency lubricated bearing. BACKGROUND

[0002] A ball bearing is a kind of rolling bearing, mainly composed of an inner ring, an outer ring, rolling steel balls and a retainer. The retainer plays a crucial role: it effectively isolates each steel ball to prevent mutual collision and friction; at the same time, it guides the uniform distribution and correct movement of the steel balls on the raceway, ensuring reasonable load distribution.

[0003] At present, a plurality of semicircular limiting grooves are formed on the retainer. After two retainers are combined, two limiting grooves semi-enclose and limit one steel ball. During the rotation of the bearing, lubricating grease can enter the limiting groove from the opening of the limiting groove, thereby lubricating the steel ball.

[0004] During the rotation of the bearing, the temperature inside the bearing will rise, and the increase in temperature will reduce the viscosity of the lubricating grease, thereby increasing the flowability of the lubricating grease. The inner wall of the retainer and the surface of the steel ball are smooth, making it difficult for the lubricating grease to remain in the limiting groove, thereby increasing the friction between the steel ball and the retainer and reducing the service life of the bearing. SUMMARY

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

[0006] The high-efficiency lubricated bearing provided by the application adopts the following technical scheme:

[0007] A high-efficiency lubricated bearing, comprising an inner ring, an outer ring, two retainers and a plurality of steel balls, a plurality of limiting grooves are formed on the retainer, a containing groove is formed on the inner wall of the limiting groove, an oil storage plate is arranged in the containing groove, an oil storage cavity is formed on the side of the oil storage plate close to the retainer, an oil inlet hole is formed in the retainer, the oil inlet hole is in communication with the oil storage cavity, a plurality of oil storage assemblies are arranged on the side wall of the oil storage plate away from the retainer, 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 send the lubricating grease in the oil storage cavity into the oil storage assembly.

[0008] By adopting the above technical scheme, during the use of the bearing, the steel ball drives the retainer to rotate, the lubricating grease in the bearing enters the oil storage cavity of the oil storage plate through the oil inlet hole when the retainer rotates, then the oil supply assembly sends the lubricating grease in the oil storage cavity into the oil storage assembly, the oil storage assembly stores the lubricating grease and continuously lubricates the steel ball, thereby reducing the friction of the steel ball and improving the service life of the bearing.

[0009] Preferably, the oil storage assembly comprises 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 retainer, and the support columns are fixedly arranged in the oil storage plate, the top ends of the plurality of support columns abut against the steel balls.

[0010] By adopting the above technical scheme, the outer wall of the steel ball abuts against the top end of the support column, the oil supply assembly sends the lubricating grease in the oil storage cavity into the oil storage frame, the oil storage frame stores the lubricating grease, the lubricating grease is not easy to slide out of the retainer, and thus the steel ball can be continuously lubricated.

[0011] Preferably, the oil supply assembly comprises a moving column, an oil supply plate, a spring sheet and a plurality of oil supply columns, the moving column is slidingly arranged in the oil storage plate, the oil supply plate is slidingly arranged in the oil storage cavity, one end of the moving column is fixedly connected with the oil supply plate, the other end abuts against the steel ball, the spring sheet is arranged on the side wall of the oil storage plate away from the moving column, the spring sheet abuts against the inner wall of the containing groove of the retainer, the plurality of oil supply columns are arranged on the side wall of the oil storage plate close to the moving column, a plurality of oil supply holes are formed in the oil storage plate, and the plurality of oil supply columns are slidingly arranged in the plurality of oil supply holes.

[0012] By adopting the above technical scheme, the spring sheet drives the end of the moving column to move and abut against the steel ball, the steel ball is floatingly arranged between the two oil storage plates, the steel ball pushes the moving column to reciprocatingly move in the oil storage plate during the floating process, the moving column drives the oil supply column to reciprocatingly slide out of and into the oil supply hole through the oil supply plate, and the oil supply column continuously injects the lubricating grease in the oil storage cavity into the oil storage frame through the oil supply hole during the in-and-out process, so that the oil storage frame can always have the lubricating grease.

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

[0014] By adopting the above technical scheme, the support columns guide the movement of the oil supply plate, so that the reciprocating movement of the oil supply plate is 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 scheme, the chamfer at the end of the oil storage frame facilitates the mutual communication of the lubricating grease in each oil storage frame, so as to further improve the lubricating effect of the steel ball.

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

[0018] By adopting the above technical scheme, one oil storage frame is connected with a plurality of other oil storage frames, so as to facilitate the lubricating grease in one oil storage frame to be sent into the other plurality of oil storage frames.

[0019] Preferably, the end of the support column away from the steel ball is fixedly provided with a support seat, and the support seat abuts against the inner wall of the containing groove.

[0020] By adopting the above technical scheme, the support seat reinforces the support column, so that the support column is more stable when abutting against the steel ball.

[0021] Preferably, a scraper is arranged on the outer side wall of the retainer, and the scraper is located at the opening end of the oil inlet hole.

[0022] By adopting the above technical scheme, the retainer drives the scraper to rotate in the rotating process, and the scraper collects the lubricating grease in the bearing at the oil inlet hole, so that the lubricating grease can enter the oil storage cavity from the oil inlet hole.

[0023] Preferably, two oil inlet holes are arranged, two scrapers are arranged, the two scrapers are located on the side close to each other of the two oil inlet holes, and the ends of the two scrapers away from the retainer are inclined away from each other.

[0024] By adopting the above technical scheme, two scrapers and oil inlet holes are arranged on the retainer, so that the lubricating grease can be sent into the oil storage cavity when the bearing rotates forward and reversely.

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

[0026] 1. The oil storage plate is used, in the use process of the bearing, the steel ball drives the retainer to rotate, the lubricating grease in the bearing enters the oil storage cavity of the oil storage plate from the oil inlet hole when the retainer rotates, then the oil supply assembly sends the lubricating grease in the oil storage cavity into the oil storage assembly, the oil storage assembly stores the lubricating grease and continuously lubricates the steel ball, thereby reducing the friction of the steel ball and prolonging the service life of the bearing;

[0027] 2. The outer wall of the rolling ball abuts against the top end of the support column by means of the oil storage assembly, the oil supply assembly sends the lubricating grease in the oil storage cavity into the oil storage frame, the oil storage frame stores the lubricating grease, so that the lubricating grease is not easy to slide out of the retainer, thereby continuously lubricating the steel ball;

[0028] 3. The oil supply assembly is used, the end of the moving column is driven by the oil supply plate to move and abut against the steel ball, the steel ball floats between the two oil storage plates, and the moving column reciprocates in the oil storage plate in the floating process of the steel ball, the oil supply column is driven by the oil supply plate to reciprocate out of and into the oil supply hole, and the lubricating grease in the oil storage cavity is injected into the oil storage frame through the oil supply hole in the process of the oil supply column constantly going in and out, so that the oil storage frame can always have lubricating grease. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole structure schematic view of the efficient lubricating bearing of the present application.

[0030] Figure 2 Part structure diagram of the high-efficiency lubricated bearing of the present application, highlighting the retainer;

[0031] Figure 3 Part structure diagram of the high-efficiency lubricated bearing of the present application, highlighting the limiting groove;

[0032] Figure 4 Part structure front exploded view of the high-efficiency lubricated bearing of the present application, highlighting the oil storage plate;

[0033] Figure 5 Part structure reverse exploded view of the high-efficiency lubricated bearing of the present application, highlighting the oil storage plate;

[0034] Figure 6 Part structure diagram of the high-efficiency lubricated bearing of the present application, highlighting the oil storage assembly;

[0035] Figure 7 Part structure front exploded view of the high-efficiency lubricated bearing of the present application, highlighting the oil supply assembly;

[0036] Figure 8 Part structure reverse exploded view of the high-efficiency lubricated bearing of the present application, highlighting the oil supply assembly.

[0037] Reference signs: 1, inner ring; 2, outer ring; 3, retainer; 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, elastic sheet; 94, oil supply column; 10, oil storage cavity; 11, oil inlet hole; 12, oil supply hole; 13, chamfer; 14, support seat; 15, scraper; 16, raceway; 17, baffle. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings Figures 1-8 The present application will be further described in detail.

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

[0040] Reference Figure 1 and Figure 2 The high-efficiency lubricated bearing comprises an inner ring 1, an outer ring 2, two retainers 3 and a plurality of steel balls 4, a raceway 16 is formed on the outer side wall of the inner ring 1 and the inner side wall of the outer ring 2, and the plurality of steel balls 4 are rollingly installed in the two raceways 16.

[0041] Reference Figure 2 and Figure 3Each holder 3 is formed with multiple limiting grooves 5 at equal intervals along the circumferential direction of the holder 3, the two holders 3 are fixedly connected by rivets or screws, and the two limiting grooves 5 at the same position on the two holders 3 semi-enclose a steel ball 4.

[0042] With reference to Figure 4 and Figure 5 , the holder 3 is provided with an arc-shaped containing groove 6 on the inner side wall of each limiting groove 5, the holder 3 is provided with an arc-shaped oil storage plate 7 clamped and installed in each containing groove 6, and the steel ball 4 is floatingly installed between the two oil storage plates 7. Each oil storage plate 7 is formed with an arc-shaped oil storage cavity 10 on the side wall close to the holder 3.

[0043] The outer side wall of the holder 3 is provided with two oil inlet holes 11 at intervals corresponding to each containing groove 6, the opening of the oil inlet hole 11 is rectangular, and the two oil inlet holes 11 are parallel to each other. The outer side wall of the holder 3 is fixedly installed with two scrapers 15 corresponding to each containing groove 6, and the two ends of each scraper 15 in the length direction are fixedly installed with a baffle 17 in the direction perpendicular to the scraper 15. The two scrapers 15 are located on the side close to each other of the two oil inlet holes 11, and the side away from the holder 3 of the two scrapers 15 is inclined away from each other.

[0044] The high-efficiency lubricated bearing of the present application is a medium or large bearing, which is applied to reciprocating rotating equipment. The bearing is often reciprocating forward and reverse rotation during use. During the reciprocating rotation of the bearing, the steel ball 4 rolls in the raceway 16, the steel ball 4 drives the holder 3 to rotate, the holder 3 drives the scraper 15 to rotate, and the scraper 15 scrapes the lubricating grease in the bearing to the opening of the oil inlet hole 11 during rotation. Under the action of the two baffles 17, the lubricating grease enters the oil storage cavity 10 of the oil storage plate 7 through the oil inlet hole 11 and is stored.

[0045] The oil storage plate 7 is installed with multiple oil storage assemblies 8 on the side wall away from the oil storage cavity 10, and the oil storage plate 7 is installed with multiple oil supply assemblies 9, the multiple oil supply assemblies 9 correspond to the multiple oil storage assemblies 8 one by one, and the oil supply assembly 9 sends the lubricating grease in the oil storage cavity 10 into the oil storage assembly 8.

[0046] During the use of the bearing, the oil supply assembly 9 sends the lubricating grease in the oil storage cavity 10 into the oil storage assembly 8, the outer wall of the steel ball 4 abuts against the multiple oil storage assemblies 8, the oil storage assemblies 8 store the lubricating grease and continuously lubricate the steel ball 4, thereby reducing the friction of the steel ball 4 and improving the service life of the bearing.

[0047] With reference to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8Specifically, the oil storage assembly 8 comprises an oil storage frame 81 and six support columns 82. The oil storage frame 81 is fixedly installed 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. The side walls of every two adjacent oil storage frames 81 abut against each other. The oil storage frames 81 are in contact with each other and arranged in a honeycomb shape.

[0048] The support columns 82 are fixedly installed in the oil storage plate 7. The six support columns 82 are located in the oil storage frame 81. The six support columns 82 are arranged at equal intervals along the circumference of the oil storage frame 81. The end of the support column 82 away from the steel ball 4 extends into the oil storage cavity 10. The end of the support column 82 away from the steel ball 4 is fixedly installed on the support seat 14. The support seat 14 abuts against the inner wall of the containing groove 6 of the retainer 3. The end of the support column 82 away from the support seat 14 abuts against the steel ball 4.

[0049] The outer wall of the steel ball 4 abuts against the top end of the support column 82. This abutting mode not only ensures the stability of the steel ball 4, but also creates a basic condition for subsequent lubrication. When the bearing is running, the oil supply assembly 9 delivers the grease pre-stored in the oil storage cavity 10 to the inside of the oil storage frame 81. The oil storage frame 81 plays an effective role in preserving the grease due to its regular hexagonal cavity structure. The oil storage frame 81 can cleverly limit the flow range of the grease, avoiding the grease from easily sliding out of the retainer 3 due to the centrifugal force generated by the vibration of the equipment or the rotation of the steel ball. Through the cooperation of the support column 82 and the oil storage frame 81, the grease can always stably remain in the working area around the steel 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 comprises a moving column 91, an oil supply plate 92, two elastic sheets 93, and six oil supply columns 94. The moving column 91 is slidingly installed in the oil storage plate 7 along the diameter direction of the steel ball 4. One end of the moving column 91 abuts against the steel ball 4. The other end of the moving column 91 extends into the oil storage cavity 10. The oil supply plate 92 is located in the oil storage cavity 10 of the oil storage plate 7. The oil supply plate 92 is fixedly connected with the end of the moving column 91 away from the steel ball 4. The oil supply plate 92 is slidingly installed on the six support columns 82.

[0051] The oil supply hole 12 is formed between every two adjacent support columns 82 in the oil storage plate 7. The end of the oil supply hole 12 communicates with the oil storage cavity 10. The six oil supply columns 94 are fixedly installed on the side wall of the oil supply plate 92 close to the moving column 91. The six oil supply columns 94 correspond to the six oil supply holes 12 one by one. The two elastic sheets 93 are fixedly installed on the side wall of the oil supply plate 92 away from the oil supply columns 94. The elastic sheet 93 is V-shaped. The end of the elastic sheet 93 away from the oil supply plate 92 abuts against the inner wall of the containing groove 6 of the retainer 3.

[0052] The steel ball 4 is installed in a floating state between the two oil storage plates 7, which reserves space for subsequent dynamic operation. When the spring 93 starts to act, the spring 93 will generate a pushing force through the oil supply plate 92, which will cause the end of the moving column 91 to displace, so that the end of the moving column 91 abuts against the surface of the steel ball 4.

[0053] While the steel ball 4 between the two oil storage plates 7 is floating, it will react on the moving column 91, prompting it to reciprocatingly move inside the oil storage plate 7. With the back-and-forth movement of the moving column 91, the oil supply plate 92 connected thereto will also move synchronously, thereby continuously reciprocatingly sliding the oil supply column 94 in and out of the oil supply hole 12.

[0054] In the continuous in-and-out movement of the oil supply column 94, the lubricating grease in the oil storage cavity 10 is continuously extruded and injected into the oil storage frame 81 through the oil supply hole 12. The oil storage frame 81 can always maintain sufficient lubricating grease reserves, providing stable and reliable guarantee for subsequent lubrication work.

[0055] The oil storage frame 81 is formed with chamfers 13 on the opposite sides away from the end of the oil storage plate 7. The chamfers 13 can eliminate the corners of the end of the oil storage frame 81, forming a smooth transition area between adjacent oil storage frames 81. When the lubricating grease flows in the oil storage frame 81, the presence of the chamfers 13 allows the lubricating grease in each oil storage frame 81 to flow more smoothly. The lubricating grease can be more flexibly allocated between multiple oil storage frames 81, ensuring that the steel ball 4 can be adequately lubricated at different positions, further improving the lubrication effect of the steel ball 4 and reducing the possibility of wear due to insufficient local lubrication of the steel ball 4.

[0056] At the same time, when the plurality of regular hexagonal oil storage frames 81 are arranged in a honeycomb shape, each oil storage frame 81 can be closely connected with multiple other oil storage frames 81 around it, forming an efficient connection grid. This structure makes the transmission path of the lubricating grease more abundant and convenient. When the lubricating grease content in one oil storage frame 81 is relatively high, it can be quickly and smoothly transported to multiple surrounding oil storage frames 81, achieving efficient distribution of the lubricating grease in the entire oil storage frame 81 system. This ensures that each oil storage frame 81 can maintain an appropriate amount of lubricating grease, providing continuous and uniform lubrication support for the steel ball 4, greatly enhancing the overall performance of the lubrication system.

[0057] The implementation principle of the high-efficiency lubricated bearing according to an embodiment of the present application is as follows: in the process of reciprocating rotation of the bearing, the steel ball 4 rolls in the raceway 16, the steel ball 4 drives the retainer 3 to rotate, and the retainer 3 drives the scraper 15 to rotate. During the rotation of the scraper 15, the lubricating grease in the bearing is scraped to the opening of the oil inlet hole 11. Under the action of the two baffles 17, the lubricating grease enters the oil storage cavity 10 of the oil storage plate 7 through the oil inlet hole 11 and is stored therein.

[0058] The steel ball 4 between the two oil storage plates 7, in the process of floating itself, will react to the moving column 91, prompting it to move reciprocatingly inside the oil storage plate 7. With the back and forth movement of the moving column 91, the oil supply plate 92 connected thereto will also move synchronously, thereby driving the oil supply column 94 to continuously slide in and out of the oil supply hole 12. In the continuous in-and-out movement of the oil supply column 94, the lubricating grease in the oil storage cavity 10 is continuously extruded and injected into the oil storage frame 81 through the oil supply hole 12, so that the oil storage frame 81 can always maintain sufficient lubricating grease reserves.

[0059] The oil storage frame 81 plays an effective role in preserving the lubricating grease due to its regular hexagonal cavity structure. The oil storage frame 81 can cleverly limit the flow range of the lubricating grease, avoiding the lubricating grease from easily sliding out of the retainer 3 due to centrifugal force generated by equipment vibration or ball rotation. Through the cooperation of the support column 82 and the oil storage frame 81, the lubricating 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 long-term and efficient operation of the bearing.

[0060] The above is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A high efficiency lubricated bearing comprising an inner ring (1), an outer ring (2), two cages (3) and a plurality of steel balls (4), the cages (3) being formed with a plurality of retaining grooves (5), characterized in that: The retaining frame (3) is provided with an accommodating groove (6) on the inner wall of the limiting groove (5), the retaining frame (3) is provided with an oil storage plate (7) in the accommodating groove (6), the oil storage plate (7) is formed with an oil storage cavity (10) on the side close to the retaining frame (3), the oil storage plate (7) is provided with a plurality of oil storage assemblies (8) on the side wall away from the retaining frame (3), the outer wall of the steel ball (4) abuts against the oil storage assembly (8), and the oil storage plate (7) is provided with a plurality of oil supply assemblies (9) therein, the oil supply assembly (9) sends the lubricating grease in the oil storage cavity (10) into the oil storage assembly (8). The oil storage assembly (8) comprises an oil storage frame (81) and a plurality of supporting 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 supporting column (82) is fixedly arranged in the oil storage plate (7), a plurality of the supporting columns (82) are located in the oil storage frame (81), and the top ends of the plurality of supporting columns (82) abut against the steel ball (4); the oil supply assembly (9) comprises a moving column (91), an oil supply plate (92), a spring (93) and a plurality of oil supply columns (94), the moving column (91) is slidably arranged in the oil storage plate (7), the oil supply plate (92) is slidably arranged in the oil storage cavity (10), one end of the moving column (91) is fixedly connected with the oil supply plate (92), the other end abuts against the steel ball (4), the spring (93) is arranged on the side wall of the oil storage plate (7) away from the moving column (91), the spring (93) abuts against the inner wall of the retaining frame (3) located in the accommodating groove (6), a plurality of the oil supply columns (94) are arranged on the side wall of the oil storage plate (7) close to the moving column (91), a plurality of oil supply holes (12) are formed in the oil storage plate (7), and a plurality of the oil supply columns (94) are slidably arranged in the plurality of oil supply holes (12); the steel ball (4) is arranged between the two oil storage plates (7) in a floating manner.

2. A high efficiency lubricated bearing according to claim 1, wherein: The plurality of supporting columns (82) pass through the oil supply plate (92), and the oil supply plate (92) is slidably arranged on the plurality of supporting columns (82).

3. A high efficiency lubricated bearing according to claim 1, wherein: The end of the oil storage frame (81) away from the oil storage plate (7) is provided with a chamfer (13).

4. A high efficiency lubricated bearing according to claim 3, wherein: The oil storage frame (81) is a regular hexagon, and a plurality of the oil storage frames (81) are arranged in a honeycomb shape.

5. A high efficiency lubricated bearing of claim 1 wherein: The end of the supporting column (82) away from the steel ball (4) is fixedly provided with a supporting seat (14), and the supporting seat (14) abuts against the inner wall of the retaining frame (3) located in the accommodating groove (6).

6. A high efficiency lubricated bearing of claim 1 wherein: The outer side wall of the retaining frame (3) is provided with a scraper (15), and the scraper (15) is located at the opening end of the oil inlet hole (11).

7. A high efficiency lubricated bearing according to claim 6 wherein: The oil inlet hole (11) is provided with two oil inlet holes (11), and the scraper (15) is provided with two scrapers (15), two of the scrapers (15) are located on the side close to each other of the two oil inlet holes (11), and the ends of the two scrapers (15) away from the retaining frame (3) are inclined away from each other.

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