Bearing ring

Abstract

The utility model provides a bearing ring, which relates to the technical field of bearings, and comprises an outer ring, an inner ring, two fixed ring pieces and a plurality of large balls, an outer ring slide way and an inner ring slide way are respectively arranged on the corresponding surfaces of the outer ring and the inner ring, and the large balls can slide on the outer ring slide way and the inner ring slide way. A plurality of large convex grooves used for wrapping the large balls are annularly formed in the fixing ring piece at equal angles, the two sides of the large balls are limited through the fixing ring piece, the number of the small balls is N times that of the large balls, at least one small convex groove used for wrapping the small balls is formed in the position, between every two adjacent large convex grooves, of the fixing ring piece, and the small convex grooves are used for wrapping the small balls. And when the small balls are limited and fixed by the small convex grooves, the small balls are in contact with the outer ring slideway or the inner ring slideway. According to the bearing ring, a gap between every two adjacent large balls is compensated through the small balls, so that more balls can be assembled between the outer ring and the inner ring, the balls are fully distributed between the outer ring slide way and the inner ring slide way, and the friction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and specifically relates to a bearing ring. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment, mainly used to support a mechanical rotating body and reduce the friction coefficient during its movement. Currently, bearings mainly include several categories such as sliding bearings, spherical plain bearings, rolling bearings, deep groove ball bearings, angular contact ball bearings, self-aligning ball bearings, thrust ball bearings, and needle roller bearings. Among them, rolling bearings include ball bearings.

[0003] For example, in Chinese Patent Publication No. CN204610592U, when installing the rolling elements of a bearing, especially when installing the balls of a deep groove ball bearing, the outer ring and the inner ring with their planes in the same plane are arranged eccentrically and displaced, and a crescent-shaped fixture is arranged in the gap formed between the above-mentioned eccentric inner and outer rings. Then the balls are dropped and received at the raceway positions of the inner and outer rings, and finally the assembly of the bearing is completed.

[0004] However, in the above method of installing rolling elements, due to the limited space of the crescent shape, fewer rolling elements can be installed in the gap. When the inner ring is reset, the rolling elements cannot completely fill the gap, resulting in the friction efficiency of the bearing not reaching the optimal state. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a bearing ring, which solves the problems raised in the above background art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized through the following technical solutions: A bearing ring includes an outer ring, an inner ring, two fixed ring pieces, and a number of large balls. On the corresponding surfaces of the outer ring and the inner ring, there are respectively an outer ring raceway and an inner ring raceway for the large balls to slide. On the fixed ring pieces, a number of large convex grooves for wrapping the large balls are circumferentially and equally angularly arranged. The two sides of the large balls are limited by the fixed ring pieces. It also includes small balls with a total number N times that of the large balls. At least one small convex groove for wrapping the small balls is arranged between two adjacent large convex grooves on the fixed ring piece. When the small balls are restricted and fixed by the small convex grooves, the small balls contact the outer ring raceway or the inner ring raceway.

[0009] Preferably, the small balls include a set of outer small balls and a set of inner small balls. The small convex grooves on the fixed ring plate are respectively arranged as the outer small convex grooves on the outer ring and the inner small convex grooves on the inner ring. When the outer small balls are restricted and fixed in the outer small convex grooves, they contact the outer ring slideway, and when the inner small balls are restricted and fixed in the inner small convex grooves, they contact the inner ring slideway.

[0010] Preferably, the number of the outer small balls, the inner small balls, and the large balls is the same. One outer small convex groove and one inner small convex groove are respectively arranged between two adjacent large convex grooves on the fixed ring plate.

[0011] Preferably, the number of both the outer small balls and the inner small balls is half of that of the large balls. One outer small convex groove and one inner small convex groove are alternately arranged at intervals between two adjacent large convex grooves on the fixed ring plate.

[0012] Preferably, a plurality of rivet holes for installing rivets are circumferentially and equiangularly formed on the fixed ring plate.

[0013] (III) Beneficial effects

[0014] The present utility model provides a bearing race. The following beneficial effects are achieved:

[0015] 1. For this bearing race, small balls are used to compensate for the gap between two adjacent large balls, so that more balls can be assembled between the outer ring and the inner ring, and the balls are filled between the outer ring slideway and the inner ring slideway, improving the friction efficiency.

[0016] 2. For this bearing race, after the large balls are installed between the outer ring and the inner ring, the small balls are then installed between two adjacent large balls. Since the diameter of the small balls is smaller than the gap between the outer ring and the inner ring, the installation of the small balls is not restricted. Description of the drawings

[0017] Figure 1 is the assembly drawing of the present utility model;

[0018] Figure 2 is the disassembly drawing of the present utility model;

[0019] Figure 3 is the plane cross-sectional view of the present utility model.

[0020] In the figure: 1 outer ring, 2 inner ring, 3 fixed ring plate, 4 large ball, 5 outer small ball, 6 inner small ball, 7 large convex groove, 8 outer small convex groove, 9 inner small convex groove, 10 rivet hole, 11 outer ring slideway, 12 inner ring slideway. Detailed implementation manners

[0021] An embodiment of the present utility model provides a bearing race, as Figures 1-3As shown in the figure, it includes an outer ring 1, an inner ring 2, two fixed ring plates 3, and several large ball bearings 4. An outer ring slideway 11 for the large ball bearings 4 to slide is provided on the inner ring of the outer ring 1, and an inner ring slideway 12 for the large ball bearings 4 to slide is provided on the outer ring of the inner ring 2. A number of large convex grooves 7 for wrapping the large ball bearings 4 are provided on the fixed ring plate 3 at equal angles in the circumferential direction. The two sides of the large ball bearings 4 are limited by the fixed ring plate 3. A number of rivet holes 10 for installing rivets are provided on the fixed ring plate 3 at equal angles in the circumferential direction. The above is the conventional technology of the existing ball bearing.

[0022] This bearing also includes small ball bearings whose total number is N times that of the large ball bearings 4. At least one small convex groove for wrapping the small ball bearings is provided between two adjacent large convex grooves 7 on the fixed ring plate 3. When the small ball bearings are restricted and fixed by the small convex grooves, the small ball bearings contact the outer ring slideway 11 or the inner ring slideway 12.

[0023] The small ball bearings are used to compensate for the gap between two adjacent large ball bearings 4, so that more ball bearings can be assembled between the outer ring 1 and the inner ring 2, making the ball bearings fill the space between the outer ring slideway 11 and the inner ring slideway 12, and improving the friction efficiency.

[0024] The small ball bearings include a set of outer small ball bearings 5 and a set of inner small ball bearings 6. The outer small ball bearings 5 and the inner small ball bearings 6 have the same diameter. In this embodiment, the diameter of the small ball bearings is half of that of the large ball bearings 4. In actual applications, it only needs to be less than the distance between the outer ring 1 and the inner ring 2 after assembly as shown in the figure. After the large ball bearings 4 are installed between the outer ring 1 and the inner ring 2, the small ball bearings are then installed between two adjacent large ball bearings 4. Since the diameter of the small ball bearings is smaller than the gap between the outer ring 1 and the inner ring 2, the installation of the small ball bearings is not restricted. Figure 3 As shown in the figure.

[0025] The small convex grooves on the fixed ring plate 3 are respectively an outer small convex groove 8 provided on the outer side of the outer ring and an inner small convex groove 9 provided on the inner side of the inner ring. When the outer small ball bearings 5 are restricted and fixed in the outer small convex groove 8, they contact the outer ring slideway 11. When the inner small ball bearings 6 are restricted and fixed in the inner small convex groove 9, they contact the inner ring slideway 12.

[0026] Embodiment 1 of the arrangement of the small ball bearings and the small convex grooves: The number of the outer small ball bearings 5, the inner small ball bearings 6, and the large ball bearings 4 is the same. One outer small convex groove 8 and one inner small convex groove 9 are respectively arranged between two adjacent large convex grooves 7 on the fixed ring plate 3. In this scheme, the outer small convex groove 8 and the inner small convex groove 9 are in the same radial direction.

[0027] Embodiment 2 of the arrangement of the small ball bearings and the small convex grooves: That is, as shown in the figure, the number of the outer small ball bearings 5 and the inner small ball bearings 6 is half of that of the large ball bearings 4. One outer small convex groove 8 and one inner small convex groove 9 are alternately arranged at intervals between two adjacent large convex grooves 7 on the fixed ring plate 3. Figure 3 As shown in the figure.

[0028] When rotating, the outer small ball 5 located on the outside rolls and frictions with the outer ring slideway 11, and the inner small ball 6 located on the inside rolls and frictions with the inner ring slideway 12.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing ring, comprising an outer ring (1), an inner ring (2), two fixed ring pieces (3), and a plurality of large balls (4); the outer ring (1) and the inner ring (2) are provided with an outer ring slideway (11) and an inner ring slideway (12) on the corresponding sides thereof for the large balls (4) to slide; the fixed ring piece (3) is provided with a plurality of large convex grooves (7) at equal angles in the circumferential direction for wrapping around the large balls (4); the two sides of the large balls (4) are limited by the fixed ring piece (3); and the characteristics are as follows: It also includes small balls whose total number is N times that of the large balls (4). The fixed ring plate (3) is provided with at least one small convex groove between two adjacent large convex grooves (7) for wrapping the small balls. When the small balls are restricted and fixed by the small convex grooves, the small balls contact the outer ring slideway (11) or the inner ring slideway (12).

2. A bearing ring according to claim 1, characterized in that: The small balls include a group of outer small balls (5) and a group of inner small balls (6); the small convex grooves on the fixed ring plate (3) are respectively arranged on the outer small convex grooves (8) of the outer ring and the inner small convex grooves (9) of the inner ring; when the outer small balls (5) are restricted and fixed in the outer small convex grooves (8), they are in contact with the outer ring slideway (11); when the inner small balls (6) are restricted and fixed in the inner small convex grooves (9), they are in contact with the inner ring slideway (12).

3. A bearing ring according to claim 2, characterized in that: The number of the outer small balls (5), the inner small balls (6) and the large balls (4) is the same, and an outer small convex groove (8) and an inner small convex groove (9) are respectively arranged between two adjacent large convex grooves (7) on the fixed ring plate (3).

4. A bearing ring according to claim 2, characterized in that: The number of the outer small balls (5) and the inner small balls (6) is half of the number of the large balls (4), and an outer small convex groove (8) and an inner small convex groove (9) are alternately arranged between two adjacent large convex grooves (7) on the fixed ring plate (3).

5. A bearing ring according to claim 1, characterized in that: The fixing ring plate (3) is provided with a plurality of rivet holes (10) for installing rivets at equal angles in a circular direction.

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