Bearing with improved structure

Abstract

The utility model provides a bearing with an improved structure, which comprises an outer ring, an inner ring and a hub component, a plurality of balls are arranged between the outer ring and the inner ring, bearing steel bowls are arranged at two ends of the hub component, the bearing steel bowls are thickened, a plurality of groups of key slots are circumferentially arranged on the bearing steel bowls, and the key slots are connected with the bearing steel bowls. A plurality of limiting keys are fixed to the outer side of the outer ring in the circumferential direction and matched with the key grooves in size, a limiting ring is arranged on one side of the bearing steel bowl, a plurality of limiting ejector blocks are fixed to the inner side of the limiting ring in the circumferential direction, a fixing ring base is fixed to the inner side of the outer ring, a plurality of clamping grooves are formed in the fixing ring base in the circumferential direction, and the limiting ejector blocks are matched with the clamping grooves in size. The bearing solves the problems that the process of installing a traditional bearing on a hub is very tedious, and after the bearing is used for a long time, due to deformation of a bearing steel bowl, the position of the bearing is very prone to deviation, and the service life of the hub is affected.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a bearing with an improved structure. Background Art

[0002] The hub of a bicycle is mainly the part for wheel axle positioning and driving the rotation of the wheel rim. In the assembly form of the hub of a bicycle, bearings are mostly assembled at both ends inside the hub. Since there are many other components cooperating with the hub, the process of installing the traditional bearing on the hub is very cumbersome. And after long-term use of the bearing, due to the deformation of the bearing cup, the position of the bearing is likely to shift, affecting the service life of the hub.

[0003] Therefore, it is necessary to provide a new bearing with an improved structure to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a bearing with an improved structure, which solves the problems that the process of installing the traditional bearing on the hub is very cumbersome, and after long-term use of the bearing, due to the deformation of the bearing cup, the position of the bearing is likely to shift, affecting the service life of the hub.

[0005] The bearing with an improved structure provided by the utility model includes an outer ring, an inner ring and a hub assembly. A number of balls are arranged between the outer ring and the inner ring. Bearing cups are arranged at both ends of the hub assembly, and the bearing cups are thickened;

[0006] A plurality of key grooves are circumferentially formed on the bearing cup, and a plurality of limiting keys are circumferentially fixed on the outer side of the outer ring. The limiting keys are matched with the key grooves in size;

[0007] A limiting ring is arranged on one side of the bearing cup, and a number of limiting bumpers are circumferentially fixed on the inner side of the limiting ring.

[0008] In a preferred embodiment, a fixed ring seat is fixed on the inner side of the outer ring. A number of card slots are circumferentially formed on the fixed ring seat. Sealing ring plates are arranged on both sides of the fixed ring seat. A number of clamping blocks are fixedly arranged at intervals on one side of the sealing ring plate. The clamping blocks are fitted with the card slots.

[0009] In a preferred embodiment, the inner diameter of the sealing ring plate is larger than the outer diameter of the inner ring. A wear-resistant sealing pad is arranged at the center of the sealing ring plate. The wear-resistant sealing pad is in contact with the surface of the inner ring.

[0010] In a preferred embodiment, an oil injection pipe is communicated with one side of the sealing ring plate.

[0011] In a preferred embodiment, a plurality of connecting seats are circumferentially fixed on one side of the limiting ring, and the connecting seats are fixedly connected with one side of the bearing steel bowl by screws.

[0012] In a preferred embodiment, the screw is made of 40Cr.

[0013] Advantages of the present utility model:

[0014] 1. When it is necessary to install the present bearing on the hub assembly, the staff directly place the outer ring inside the bearing steel bowl, so that the limiting key is located inside the keyway, and then fix the connecting seat and one side of the bearing steel bowl together through high-strength screws to complete the installation of the bearing, which is simple and convenient to operate;

[0015] By providing the limiting key and the keyway, on the one hand, it is convenient for the staff to place the bearing, and on the other hand, it can prevent the bearing from moving during use, greatly improving its anti-offset ability and service life;

[0016] 2. By providing the sealing ring plate and the wear-resistant sealing pad, the leakage of lubricating oil inside the bearing can be avoided. When it is necessary to add lubricating oil, the staff only need to open the plug at the oil injection pipe and add lubricating oil into the bearing through the oil injection pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the main structure of the improved bearing provided by the present utility model;

[0018] Figure 2 is a schematic structural view of the hub assembly provided by the present utility model Figure 1 ;

[0019] Figure 3 is a schematic structural view of the hub assembly provided by the present utility model Figure 2 。

[0020] Reference numerals in the figures: 1, outer ring; 2, inner ring; 3, hub assembly; 4, ball; 5, bearing steel bowl; 6, keyway; 7, limiting key; 8, limiting ring; 9, limiting top block; 10, fixed ring seat; 11, card slot; 12, sealing ring plate; 13, card block; 14, wear-resistant sealing pad; 15, oil injection pipe; 16, connecting seat; 17, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to Figure 1 、 Figure 2 and Figure 3 where Figure 1 is a three-dimensional view of the main structure of the improved bearing provided by the present utility model;Figure 2 Structural schematic diagram of the hub assembly provided by the present utility model Figure 1 ; Figure 3 Structural schematic diagram of the hub assembly provided by the present utility model Figure 2 。

[0023] In the specific implementation process, as Figures 1-3 shown, it includes an outer ring 1, an inner ring 2 and a hub assembly 3. A number of balls 4 are arranged between the outer ring 1 and the inner ring 2. Bearing steel bowls 5 are arranged at both ends of the hub assembly 3, and the bearing steel bowls 5 are thickened to improve the supporting force for the bearing, avoid its deformation, improve its service life, and at the same time facilitate the subsequent installation work of the bearing.

[0024] A number of key grooves 6 are circumferentially formed on the bearing steel bowl 5. A number of limit keys 7 are circumferentially fixed on the outside of the outer ring 1. The limit keys 7 are matched with the key grooves 6 in size. A limit ring 8 is arranged on one side of the bearing steel bowl 5. A number of limit top blocks 9 are circumferentially fixed on the inner side of the limit ring 8. A number of connecting seats 16 are circumferentially fixed on one side of the limit ring 8. The connecting seats 16 and one side of the bearing steel bowl 5 are fixedly connected by screws 17. When this bearing needs to be installed on the hub assembly 3, the staff directly places the outer ring 1 inside the bearing steel bowl 5 so that the limit keys 7 are located inside the key grooves 6, and then fixes the connecting seats 16 and one side of the bearing steel bowl 5 together by high-strength screws 17. A number of limit top blocks 9 on the limit ring 8 can fix the outer ring 1. At this time, the installation of the bearing is completed. The operation is simple and convenient. By setting the limit keys 7 and the key grooves 6, on the one hand, it is convenient for the staff to place the bearing, and on the other hand, it can prevent the bearing from moving during use, greatly improving its anti-offset ability and service life.

[0025] The material of the screw 17 is 40Cr, which has certain toughness and hardness, and the price is relatively low.

[0026] A fixed ring seat 10 is fixed on the inner side of the outer ring 1. A number of card slots 11 are circumferentially formed on the fixed ring seat 10. Sealing ring plates 12 are arranged on both sides of the fixed ring seat 10. A number of card blocks 13 are fixedly arranged at intervals on one side of the sealing ring plate 12. The card blocks 13 are fitted with the card slots 11. The inner diameter of the sealing ring plate 12 is larger than the outer diameter of the inner ring 2. A wear-resistant sealing pad 14 is arranged at the center of the sealing ring plate 12. The wear-resistant sealing pad 14 is in contact with the surface of the inner ring 2. By setting the sealing ring plate 12 and the wear-resistant sealing pad 14, the leakage of lubricating oil inside the bearing can be avoided. An oil injection pipe 15 is communicated with one side of the sealing ring plate 12. When lubricating oil needs to be added, the staff only needs to open the plug at the oil injection pipe 15, and the lubricating oil can be added into the bearing through the oil injection pipe 15.

[0027] Working principle of the present utility model: When it is necessary to install this bearing on the hub assembly 3, the staff directly place the outer ring 1 inside the bearing cup 5, so that the limit key 7 is located inside the keyway 6, and then fix the connecting seat 16 to one side of the bearing cup 5 through the high-strength screw 17. Several limit bumps 9 on the limit ring 8 can fix the outer ring 1. At this time, the installation of the bearing can be completed. The operation is simple and convenient. By setting the limit key 7 and the keyway 6, on the one hand, it is convenient for the staff to place the bearing, and on the other hand, it can prevent the bearing from moving during use, greatly improving its anti-offset ability and service life;

[0028] By setting the sealing ring plate 12 and the wear-resistant sealing gasket 14, the leakage of the lubricating oil inside the bearing can be avoided. When it is necessary to add lubricating oil, the staff only need to open the plug at the oil injection pipe 15, and the lubricating oil can be added into the bearing through the oil injection pipe 15.

[0029] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A bearing with an improved structure, comprising an outer ring (1), an inner ring (2) and a hub assembly (3). A number of ball bearings (4) are arranged between the outer ring (1) and the inner ring (2), and it is characterized in that, Bearing bowls (5) are provided at both ends of the flower drum assembly (3), and the bearing bowls (5) are thickened; A plurality of key grooves (6) are circumferentially formed in the bearing bowl (5), a plurality of limit keys (7) are circumferentially fixed on the outer side of the outer ring (1), and the limit keys (7) are matched with the key grooves (6) in size; A limit ring (8) is arranged on one side of the bearing bowl (5), and a plurality of limit top blocks (9) are circumferentially fixed on the inner side of the limit ring (8).

2. The improved structure bearing according to claim 1, wherein A fixed ring seat (10) is fixed on the inner side of the outer ring (1), a plurality of card slots (11) are circumferentially formed in the fixed ring seat (10), sealing ring plates (12) are arranged on both sides of the fixed ring seat (10), a plurality of card blocks (13) are spaced and fixed on one side of the sealing ring plate (12), and the card blocks (13) are fitted with the card slots (11).

3. The improved structure bearing according to claim 2, characterized in that, The inner diameter of the sealing ring plate (12) is larger than the outer diameter of the inner ring (2), a wear-resistant sealing pad (14) is arranged at the center of the sealing ring plate (12), and the wear-resistant sealing pad (14) is in contact with the surface of the inner ring (2).

4. The improved structure bearing according to claim 3, characterized in that, An oil injection pipe (15) is communicated with one side of the sealing ring plate (12).

5. The improved structure bearing according to claim 4, wherein, A plurality of connecting seats (16) are circumferentially fixed on one side of the limit ring (8), and the connecting seats (16) and one side of the bearing bowl (5) are fixedly connected by screws (17).

6. The improved-structured bearing according to claim 5, wherein, The material of the screw (17) is 40Cr.

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