Deep groove ball bearing

Abstract

The utility model provides a deep groove ball bearing, and belongs to the field of bearings. The problem that abrasion between an existing ball and a bearing is large is solved. The deep groove ball bearing comprises a bearing outer ring, a bearing inner ring, a ball, a retainer and a dustproof cover, sealing rings are further arranged on the two sides of the bearing, the bearing inner ring, the bearing outer ring and the sealing rings are matched to form a movable cavity allowing the ball to be movably installed, an annular cavity is formed in the bearing outer ring, and the annular cavity is filled with lubricating oil. An upper wear-resisting ring and a lower wear-resisting ring are arranged at the upper end and the lower end of the movable cavity respectively, the upper wear-resisting ring is connected to the inner wall of the bearing outer ring in an embedded mode and penetrates into the annular cavity, a plurality of lubricating mechanisms are arranged in the annular cavity, and each lubricating mechanism comprises a lubricating ball, an elastic piece and a limiting part. A stepped hole for limiting installation of the elastic piece is formed in the limiting part, and a plurality of oil injection holes are formed in the bearing outer ring and communicate with the stepped hole. The utility model has the advantage of self-lubricating effect.

Description

Technical Field

[0001] The utility model belongs to the field of bearings and relates to a deep groove ball bearing. Background Art

[0002] Deep groove ball bearings are important components widely used in mechanical systems to support the load on rotating shafts. However, during the operation of traditional deep groove ball bearings, the balls are not lubricated enough, which leads to collisions between the balls and the bearings. The balls and the inside of the bearings are subject to severe wear and deformation, which reduces the performance and service life of the bearings. Summary of the invention

[0003] The utility model aims to solve the above problems existing in the prior art by providing a deep groove ball bearing with good lubrication effect.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a deep groove ball bearing, comprising a bearing outer ring, a bearing inner ring, balls, a retainer and a dust cover, wherein the number of the dust covers is two and they are respectively arranged on both sides of the bearing, and the characteristic is that sealing rings which cooperate with the dust covers and are used to improve the sealing strength are also arranged on both sides of the bearing;

[0005] The inner ring of the bearing, the outer ring of the bearing and the sealing ring cooperate to form a movable cavity for the ball to be movably installed;

[0006] The inner part of the outer ring of the bearing is provided with an annular cavity, and the annular cavity is filled with lubricating oil;

[0007] An upper wear-resistant ring and a lower wear-resistant ring are respectively arranged at the upper and lower ends of the movable cavity to reduce friction loss. The upper wear-resistant ring is embedded and connected to the inner wall of the outer ring of the bearing and penetrates into the annular cavity.

[0008] The annular cavity is provided with a plurality of lubrication mechanisms for self-lubricating the balls in the movable cavity;

[0009] The lubrication mechanism comprises a lubrication ball, an elastic member for elastic resetting and a limiting portion for blocking and limiting, wherein a stepped hole for limiting installation of the elastic member is provided inside the limiting portion;

[0010] The outer ring of the bearing is provided with a plurality of oil injection holes for injecting oil into the annular cavity. The oil injection holes are connected with the stepped holes and a detachable plug is provided in the oil injection holes.

[0011] In the above-mentioned deep groove ball bearing, the outer wall of the inner ring of the bearing and the inner wall of the outer ring of the bearing are both provided with arc ring grooves for movable connection of the balls, and the upper wear-resistant ring and the lower wear-resistant ring are respectively inlaid and installed in the arc ring grooves of the inner wall of the outer ring of the bearing and the outer wall of the inner ring of the bearing.

[0012] In the above-mentioned deep groove ball bearing, the cross-sections of the upper wear-resistant ring and the lower wear-resistant ring are arranged in an arc structure, and the upper wear-resistant ring is provided with a plurality of matching holes for the lubricating ball to partially penetrate and cooperate with the ball. The lubricating ball is installed in the matching hole by an elastic part, and penetrates into the movable cavity to fit and roll with the ball.

[0013] In the above-mentioned deep groove ball bearing, the limiting portion and the inner wall of the annular cavity are integrally formed.

[0014] In the above-mentioned deep groove ball bearing, a sealing frame for sealing support and having noise reduction and silencing functions is arranged inside the sealing ring, and the lips on both sides of the sealing ring are respectively embedded and installed on the inner wall of the bearing outer ring and the outer wall of the bearing inner ring.

[0015] Compared with the prior art, the deep groove ball bearing has a simple structural design. Through the coordination of the annular cavity, the upper wear-resistant ring and the lubrication mechanism structure, the self-lubricating effect of the deep groove ball bearing can be effectively achieved. The upper wear-resistant ring and the lower wear-resistant ring structure are further set to reduce the wear of the ball, the outer ring of the bearing and the inner ring of the bearing, thereby greatly improving the performance and service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the partial cross-sectional structure of the deep groove ball bearing.

[0017] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure, 1. bearing inner ring; 2. bearing outer ring; 3. ball; 4. retaining frame; 5. dust cover; 6. sealing ring; 7. movable cavity; 8. annular cavity; 9. upper wear-resistant ring; 10. lower wear-resistant ring; 11. lubricating ball; 12. elastic part; 13. limiting part; 14. stepped hole; 15. oil filling hole; 16. plug; 17. matching hole; 18. sealing frame. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2As shown, the deep groove ball bearing comprises a bearing outer ring 2, a bearing inner ring 1, balls 3, a retainer 4 and a dust cover 5. There are two dust covers 5, which are respectively arranged on both sides of the bearing. Sealing rings 6 that cooperate with the dust covers 5 and are used to improve the sealing strength are also arranged on both sides of the bearing. The bearing inner ring 1, the bearing outer ring 2 and the sealing ring 6 cooperate to form an active cavity 7 for the balls 3 to be movably installed. The bearing outer ring 2 has an annular cavity 8 inside, and the annular cavity 8 is filled with lubricating oil. An upper wear-resistant ring 9 and a lower wear-resistant ring 10 for reducing friction loss are respectively arranged at the upper and lower ends of the active cavity 7. The upper wear-resistant ring 9 is embedded and connected to the inner wall of the bearing outer ring 2 and penetrates into the annular cavity 8. The annular cavity 8 is provided with a plurality of rings for self-lubrication of the balls 3 in the active cavity 7. A lubrication mechanism for lubrication includes a lubrication ball 11, an elastic member 12 for elastic resetting and a limiting portion 13 for blocking and limiting. A stepped hole 14 is provided inside the limiting portion 13 for limiting and installing the elastic member 12. A plurality of oil filling holes 15 for oiling the annular cavity 8 are provided on the bearing outer ring 2. The oil filling holes 15 are communicated with the stepped holes 14. A detachable plug 16 is provided in the oil filling hole 15. The above-mentioned structure is simple in design. Through the cooperation of the annular cavity 8, the upper wear-resistant ring 9 and the lubrication mechanism structure, the self-lubrication effect of the deep groove ball bearing can be effectively achieved. Through the structural arrangement of the upper wear-resistant ring 9 and the lower wear-resistant ring 10, the wear of the ball 3, the bearing outer ring 2 and the bearing inner ring 1 is further reduced, and the performance and service life of the bearing are greatly improved.

[0021] To further elaborate, in order to reduce the wear of the ball 3 on the bearing inner ring 1 and the bearing outer ring 2, the outer wall of the bearing inner ring 1 and the inner wall of the bearing outer ring 2 are provided with arc ring grooves for the ball 3 to be movably connected, and the upper wear-resistant ring 9 and the lower wear-resistant ring 10 are respectively embedded in the arc ring grooves on the inner wall of the bearing outer ring 2 and the outer wall of the bearing inner ring 1.

[0022] To further elaborate, in order to reduce the wear of the ball 3 and improve the lubrication degree of the ball 3, the cross-section of the upper wear-resistant ring 9 and the lower wear-resistant ring 10 is arranged in an arc structure. The upper wear-resistant ring 9 is provided with a plurality of matching holes 17 for the lubricating ball 11 to partially penetrate and cooperate with the ball 3. The lubricating ball 11 is installed in the matching hole 17 by the elastic member 12, and penetrates into the movable cavity 7 to fit and roll with the ball 3.

[0023] To further elaborate, in order to improve the connection stability, the limiting portion 13 and the inner wall of the annular cavity 8 are integrally formed.

[0024] To elaborate further, in order to prevent dust from entering the interior of the bearing, a sealing frame 18 is provided inside the sealing ring 6 for sealing support and having noise reduction and silencing functions. The lips on both sides of the sealing ring 6 are respectively embedded and installed on the inner wall of the bearing outer ring 2 and the outer wall of the bearing inner ring 1, and play a role in noise reduction and silencing.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0026] Although this article uses more terms such as bearing inner ring 1, bearing outer ring 2, ball 3, cage 4, dust cover 5, sealing ring 6, movable cavity 7, annular cavity 8, upper wear-resistant ring 9, lower wear-resistant ring 10, lubricating ball 11, elastic member 12, limiter 13, stepped hole 14, oil injection hole 15, plug 16, matching hole 17, sealing frame 18, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A deep groove ball bearing, comprising a bearing outer ring (2), a bearing inner ring (1), balls (3), a retaining frame (4) and a dust cover (5), wherein the number of the dust covers (5) is two and they are arranged on both sides of the bearing respectively, and the characteristics are as follows: Sealing rings (6) are also provided on both sides of the bearing and cooperate with the dust cover (5) to improve the sealing strength. The bearing inner ring (1), the bearing outer ring (2) and the sealing ring (6) cooperate to form a movable cavity (7) for the movable installation of the ball (3); The bearing outer ring (2) has an annular cavity (8) inside, and the annular cavity (8) is filled with lubricating oil; An upper wear-resistant ring (9) and a lower wear-resistant ring (10) for reducing friction loss are respectively arranged at the upper and lower ends of the movable cavity (7); the upper wear-resistant ring (9) is embedded and connected to the inner wall of the bearing outer ring (2) and penetrates into the annular cavity (8); A plurality of lubrication mechanisms for self-lubricating the balls (3) in the movable cavity (7) are arranged in the annular cavity (8); The lubrication mechanism comprises a lubrication ball (11), an elastic member (12) for elastic resetting, and a limiting portion (13) for blocking and limiting, wherein a stepped hole (14) is provided inside the limiting portion (13) for the elastic member (12) to be installed for limiting. The bearing outer ring (2) is provided with a plurality of oil injection holes (15) for injecting oil into the annular cavity (8); the oil injection holes (15) are connected to the stepped holes (14); and a detachable plug (16) is provided in the oil injection holes (15).

2. A deep groove ball bearing according to claim 1, characterized in that: The outer wall of the bearing inner ring (1) and the inner wall of the bearing outer ring (2) are both provided with arc ring grooves for movable connection of the balls (3), and the upper wear-resistant ring (9) and the lower wear-resistant ring (10) are respectively embedded and installed in the arc ring grooves of the inner wall of the bearing outer ring (2) and the outer wall of the bearing inner ring (1).

3. A deep groove ball bearing according to claim 1, characterized in that: The cross-sections of the upper wear-resistant ring (9) and the lower wear-resistant ring (10) are arranged in an arc structure. The upper wear-resistant ring (9) is provided with a plurality of matching holes (17) for the lubricating ball (11) to partially penetrate and cooperate with the ball (3). The lubricating ball (11) is installed in the matching hole (17) by means of an elastic member (12) and penetrates into the movable cavity (7) to fit and roll with the ball (3).

4. A deep groove ball bearing according to claim 1, characterized in that: The limiting portion (13) and the inner wall of the annular cavity (8) are arranged as an integrally formed structure.

5. A deep groove ball bearing according to claim 1, characterized in that: A sealing frame (18) for sealing support and having noise reduction and silencing functions is arranged inside the sealing ring (6), and lips on both sides of the sealing ring (6) are respectively embedded and installed on the inner wall of the bearing outer ring (2) and the outer wall of the bearing inner ring (1).

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