Bearing

Abstract

The utility model belongs to the technical field of transmission parts, and particularly relates to a bearing which comprises an outer ring, an inner ring and an inner ring, the inner ring is arranged in the outer ring and is concentrically distributed with the outer ring; the plurality of bearing balls are arranged between the outer ring and the inner ring; the retainer is arranged on the inner wall of the outer ring, the retainer and the outer ring are concentrically distributed, and a plurality of ball grooves are formed in the retainer; the vibration reduction part is arranged in the outer ring and used for balancing impact and vibration borne by the bearing; the grooves are formed in the inner wall of the inner ring, and the grooves are evenly distributed in the circumferential direction of the inner ring at intervals; wherein the retainer and the outer ring are integrally formed, the ball grooves extend to the inner wall of the outer ring, the ball grooves are evenly distributed in the circumferential direction of the retainer at intervals, the bearing balls are rotationally arranged in the ball grooves, and compared with the prior art, the service life of the bearing is prolonged, and the working stability of the bearing is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission parts, and in particular relates to a bearing. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Common types of bearings include sliding bearings, spherical plain bearings, and rolling bearings. Common bearings are generally composed of an outer ring, an inner ring, a cage, and bearing balls. For example, the shaft positioning roller bearing disclosed in patent application number CN201820914048.7 includes an inner ring, an outer ring, multiple balls, a cage, and multiple balls are cylindrical rollers, with a stop and a ball shaft head at each end. There is an inner ring stop surface on the outer wall of one end of the inner ring, and a first outward-inclined groove on the outer wall of the other end of the inner ring. There is an outer ring stop surface on the inner wall of one end of the outer ring that matches the ball end stop, and a second outward-inclined groove on the other end of the outer ring. Ball shaft head sockets are respectively provided on the cage composed of two ring-shaped plates and multiple connecting columns. A circular stop plate is fixed on the outside of each ball shaft head socket;

[0003] During use, this type of existing bearing has low assembly efficiency, which reduces work efficiency. In addition, the bearing may be damaged due to impact and vibration during use, which reduces the service life and working stability of the bearing. At the same time, the lack of self-lubrication means makes it prone to excessive wear, further reducing the service life and working stability of the bearing. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of the present invention is to provide a bearing in view of the above-mentioned technical problems, so as to facilitate the bearing assembly and improve the service life and working stability of the bearing.

[0005] In view of this, the present invention provides a bearing, comprising:

[0006] An outer ring, wherein a connecting ring is provided on the outer side of the outer ring;

[0007] An inner ring, the inner ring being arranged in the outer ring and concentrically distributed with the outer ring;

[0008] A plurality of bearing balls, wherein the plurality of bearing balls are arranged between the outer ring and the inner ring;

[0009] Also includes:

[0010] A retainer, the retainer is arranged on the inner wall of the outer ring and is concentrically distributed with the outer ring, and the retainer is provided with a plurality of ball grooves;

[0011] A vibration damping portion, which is arranged inside the outer ring and is used to balance the impact and vibration of the bearing;

[0012] A plurality of grooves are provided on the inner wall of the inner ring, and the plurality of grooves are evenly spaced along the circumference of the inner ring;

[0013] The retaining frame and the outer ring are integrally formed, the ball grooves extend to the inner wall of the outer ring, a plurality of ball grooves are evenly spaced along the circumference of the retaining frame, and the bearing balls are rotatably arranged in the ball grooves.

[0014] In this technical solution, during the use of the bearing, the retaining frame and the outer ring are formed as one piece. During the assembly of the bearing, the balls are embedded in the ball grooves, and then the inner ring is squeezed. Several grooves can provide a certain space for the deformation of the inner ring, and finally the inner ring is embedded in the outer ring, which effectively simplifies the assembly process of the bearing and improves work efficiency. At the same time, during the operation of the bearing, the vibration damping part can effectively balance the impact and vibration of the bearing, thereby preventing the bearing from being damaged due to impact and vibration, and improving the service life and working stability of the bearing.

[0015] In the above technical solution, further, the vibration damping unit further includes:

[0016] A vibration-damping inner cavity is provided in the outer ring, and has two vibration-damping inner cavities and is symmetrically distributed along the radial direction of the outer ring;

[0017] Vibration-damping beads, which are filled and arranged in the vibration-damping inner cavity;

[0018] a filling hole, the filling hole being arranged on the side wall of the outer ring and communicating with the vibration-damping inner cavity;

[0019] Wherein, a sealing bolt is detachably provided on the filling hole.

[0020] In the above technical solution, further, the vibration-damping column fills 90% to 94% of the space in the vibration-damping inner cavity.

[0021] In the above technical solution, further, the vibration-damping beads are granular steel balls.

[0022] In the above technical solution, further comprising:

[0023] A lubricating oil groove is provided on the outer wall of the outer ring, and an oil hole communicating with the ball groove is provided at the bottom end of the lubricating oil groove;

[0024] The oil storage cotton is filled in the oil hole.

[0025] The beneficial effects of the utility model are:

[0026] 1. By integrating the cage and the outer ring, the assembly process of the bearing can be effectively simplified, thus improving work efficiency;

[0027] 2. The setting of the vibration damping part can effectively balance the impact and vibration of the bearing, thereby preventing the bearing from being damaged due to impact and vibration, and improving the service life and working stability of the bearing;

[0028] 3. Through the setting of lubricating oil grooves, oil holes and oil storage cotton, the lubricant can be slowly applied to the surface of the ball as the bearing rotates, thereby performing self-lubrication, reducing excessive wear of the bearing, and further improving the service life and working stability of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 It is a structural schematic diagram of a specific implementation method of the present utility model.

[0031] Figure 2 This is a schematic diagram of the outer ring structure of the utility model.

[0032] Figure 3 This is a schematic diagram of the inner ring structure of the utility model.

[0033] Figure 4 This is a schematic diagram of the lubricating oil tank structure of the utility model.

[0034] Figure 5 This is a schematic diagram of the structure of the vibration reduction part of the utility model.

[0035] The marks in the figure are:

[0036] 1. Outer ring; 2. Connecting ring; 3. Inner ring; 4. Cage; 5. Ball groove; 6. Vibration damping part; 60. Vibration damping inner cavity; 61. Vibration damping ball; 62. Filling hole; 63. Sealing bolt; 7. Groove; 8. Lubricating oil groove; 9. Oil hole; 10. Oil storage cotton. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] Example 1:

[0040] The embodiment of the present application provides a bearing, comprising: an outer ring 1, with a connecting ring 2 disposed on the outer side of the outer ring 1; an inner ring 3, which is disposed in the outer ring 1 and is concentrically distributed with the outer ring 1; and a plurality of bearing balls, which are disposed between the outer ring 1 and the inner ring 3.

[0041] The bearing assembly further comprises: a retainer 4, which is arranged on the inner wall of the outer ring 1 and is concentrically distributed with the outer ring 1, and is provided with a plurality of ball grooves 5; a vibration damping portion 6, which is arranged in the outer ring 1 to balance the impact and vibration of the bearing; and a plurality of grooves 7, which are arranged on the inner wall of the inner ring 3 and are evenly spaced along the circumference of the inner ring 3.

[0042] The retainer 4 and the outer ring 1 are integrally formed, the ball grooves 5 extend to the inner wall of the outer ring 1 , and a plurality of ball grooves 5 are evenly spaced along the circumference of the retainer 4 , and the bearing balls are rotatably arranged in the ball grooves 5 .

[0043] Moreover, the connecting ring 2 is concentrically distributed with the outer ring 1 , and the connecting ring 2 is detachably connected to the outer ring 1 by bolts.

[0044] In this embodiment, during use of the bearing, the retaining frame 4 and the outer ring 1 are integrally formed. During the assembly of the bearing, the balls are embedded in the ball grooves 5, and then the inner ring 3 is squeezed. Several grooves 7 can provide a certain space for the deformation of the inner ring 3, and finally the inner ring 3 is embedded in the outer ring 1, which effectively simplifies the assembly process of the bearing and improves work efficiency. At the same time, during the operation of the bearing, the vibration damping part 6 can effectively balance the impact and vibration of the bearing, thereby preventing the bearing from being damaged due to impact and vibration, and improving the service life and working stability of the bearing.

[0045] Example 2:

[0046] This embodiment provides a bearing. In addition to the technical solutions of the above embodiments, it also has the following technical features: the vibration damping portion 6 further includes: a vibration damping inner cavity 60, which is disposed in the outer ring 1 and has two vibration damping inner cavities 60 and is symmetrically distributed along the radial direction of the outer ring 1; vibration damping beads 61, which are filled and disposed in the vibration damping inner cavity 60; and a filling hole 62, which is disposed on the side wall of the outer ring 1 and communicates with the vibration damping inner cavity 60.

[0047] A sealing bolt 63 is detachably provided on the filling hole 62 .

[0048] The vibration-damping column fills 90% to 94% of the space in the vibration-damping inner cavity.

[0049] The vibration-damping balls 61 are granular steel balls.

[0050] In this embodiment, during use of the bearing, the retainer 4 and the outer ring 1 are integrally formed. During assembly, the balls are inserted into the ball grooves 5, and then the inner ring 3 is squeezed. The grooves 7 provide space for the deformation of the inner ring 3. Finally, the inner ring 3 is inserted into the outer ring 1. Then, the vibration-damping beads 61 are filled into the vibration-damping inner cavity 60 through the filling hole 62. After filling, the filling hole 62 is sealed with a plugging bolt 63. When the bearing is subjected to impact and vibration, the vibration-damping beads 61 filled in the vibration-damping inner cavity 60 will always move in the opposite direction of the bearing's acceleration due to inertia under the action of the impact and vibration, thereby balancing the impact and vibration and reducing the impact and vibration on the bearing. At the same time, the collision and friction between the vibration-damping beads 61 and the collision and friction between the vibration-damping beads 61 and the inner wall of the vibration-damping inner cavity 60 further absorb the energy exerted on the bearing by the impact and vibration and dissipate it as heat energy, thereby further reducing the impact and vibration on the bearing. Compared with the prior art, the present invention can effectively improve the service life and operating stability of the bearing.

[0051] Example 3:

[0052] This embodiment provides a bearing, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including: a lubricating oil groove 8, the lubricating oil groove 8 is arranged on the outer wall of the outer ring 1, and the bottom end of the lubricating oil groove 8 is provided with an oil hole 9 connected to the ball groove 5; oil storage cotton 10, the oil storage cotton 10 is filled and arranged in the oil hole 9.

[0053] In this embodiment, during the use of the bearing, the lubricating grease is filled into the lubricating oil groove 8 when assembling the bearing, and then the connecting ring 2 is installed on the outer ring 1. The lubricating grease in the lubricating oil groove 8 can penetrate into the oil hole 9 and be absorbed by the oil storage cotton 10. As the bearing ball rotates, the lubricating grease absorbed in the oil storage cotton 10 can be slowly applied to the bearing ball, so that the bearing can be self-lubricated during operation, reducing the phenomenon of excessive wear of the bearing, and further improving the service life and working stability of the bearing.

[0054] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A bearing comprising: An outer ring (1), wherein a connecting ring (2) is provided on the outer side of the outer ring (1); an inner ring (3), the inner ring (3) being arranged in the outer ring (1) and being concentrically distributed with the outer ring (1); A plurality of bearing balls, wherein the plurality of bearing balls are arranged between the outer ring (1) and the inner ring (3); It is characterized by further comprising: A retainer (4), the retainer (4) being arranged on the inner wall of the outer ring (1) and being distributed concentrically with the outer ring (1), and the retainer (4) being provided with a plurality of ball grooves (5); A vibration damping portion (6), the vibration damping portion (6) being arranged inside the outer ring (1) and used for balancing the impact and vibration suffered by the bearing; A plurality of grooves (7), wherein the plurality of grooves (7) are arranged on the inner wall of the inner ring (3), and the plurality of grooves (7) are evenly spaced along the circumference of the inner ring (3); The retaining frame (4) and the outer ring (1) are integrally formed, the ball groove (5) extends to the inner wall of the outer ring (1), a plurality of ball grooves (5) are evenly spaced along the circumference of the retaining frame (4), and the bearing balls are rotatably arranged in the ball grooves (5).

2. A bearing according to claim 1, characterized in that: The vibration damping part (6) further comprises: A vibration-damping inner cavity (60), the vibration-damping inner cavity (60) being arranged in the outer ring (1), the vibration-damping inner cavity (60) having two and symmetrically distributed along the radial direction of the outer ring (1); Vibration-damping beads (61), the vibration-damping beads (61) are filled and arranged in the vibration-damping inner cavity (60); A filling hole (62), the filling hole (62) being arranged on the side wall of the outer ring (1) and communicating with the vibration-damping inner cavity (60); Wherein, a blocking bolt (63) is detachably provided on the filling hole (62).

3. A bearing according to claim 2, characterized in that: The vibration-damping beads fill 90% to 94% of the space in the vibration-damping inner cavity (60).

4. A bearing according to claim 3, characterized in that: The vibration-damping beads (61) are granular steel balls.

5. A bearing according to claim 4, characterized in that: Also includes: A lubricating oil groove (8), the lubricating oil groove (8) being arranged on the outer wall of the outer ring (1), and an oil hole (9) communicating with the ball groove (5) being arranged at the bottom end of the lubricating oil groove (8); The oil storage cotton (10) is filled and arranged in the oil hole (9).

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