Wear-resistant deep groove ball bearing with long service life

Abstract

The utility model relates to the technical field of bearings, and discloses a wear-resistant long-life deep groove ball bearing which comprises an outer ring, an inner ring, a plurality of balls and two retainers, the balls are circularly arranged on the inner side of the outer ring, the two retainers are arranged at the upper ends and the lower ends of the balls, the inner ring is arranged on the inner sides of the two retainers, and the outer ring is arranged on the inner side of the inner ring. A second groove is formed in the center of the inner side wall of the outer ring, a first groove is formed in the center of the outer side wall of the inner ring, wear-resisting structures are arranged in the first groove and the second groove, and sealing covers are arranged at the upper end of the retainer close to the upper portion and the lower end of the retainer close to the lower portion. According to the ball bearing, sealing is conducted through the sealing cover, dust entering and damage to the balls are reduced, the balls are limited through the two retainers, the abrasion resistance is improved through the abrasion-resistant structure, meanwhile, replacement and use can be conducted, the service life is prolonged, meanwhile, the use cost is reduced, and lubricating oil can conduct lubrication more thoroughly and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a wear-resistant and long-life deep groove ball bearing. Background Art

[0002] Deep groove ball bearings, also called single row radial ball bearings, are the most widely used rolling bearings. They are characterized by low friction resistance and high speed. They can be used on parts that bear radial loads or combined loads of radial and axial loads, and can also be used on parts that bear axial loads.

[0003] However, due to the heavy load during use, the friction between the internal balls and the outer ring, inner ring and retaining frame is large, making it difficult to maintain long-term use. Therefore, technical personnel in this field provide a wear-resistant and long-life deep groove ball bearing to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a wear-resistant and long-life deep groove ball bearing. When in use, a first wear-resistant layer and a second wear-resistant layer are arranged on both sides of a plurality of balls to reduce the wear between the inner ring and the outer ring of the plurality of balls, and then the ends of the balls are infiltrated with oil through a plurality of oil infiltration grooves, so that the lubricating oil is more thoroughly and quickly wrapped around the outer sides of the plurality of balls, thereby improving the efficiency of lubrication.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant and long-life deep groove ball bearing, comprising an outer ring, an inner ring, and two cages with a plurality of balls, wherein the plurality of balls are arranged in a circular shape on the inner side of the outer ring, the two cages are arranged at the upper and lower ends of the plurality of balls, the inner ring is arranged on the inner sides of the two cages, a second groove is provided at the center of the inner side wall of the outer ring, a first groove is provided at the center of the outer side wall of the inner ring, a wear-resistant structure is provided inside the first groove and the second groove, and a sealing cover is provided at the upper end of the cage near the upper end and the lower end of the cage near the lower end;

[0006] Through the above technical solution, sealing is performed through the sealing cover to reduce dust entry and damage to the balls, and multiple balls are limited by two retaining frames. The wear-resistant structure improves wear resistance and can also be replaced and used, thereby increasing service life and reducing use costs.

[0007] Further, the wear-resistant structure comprises a first wear-resistant layer and a second wear-resistant layer, the first wear-resistant layer is arranged inside the first groove, and the second wear-resistant layer is arranged at the center inside the second groove;

[0008] Through the above technical solution, the wear resistance is improved by the first wear-resistant layer and the second wear-resistant layer, the wear is reduced, and the service life is increased.

[0009] Furthermore, the inner wall of the second wear-resistant layer is provided with a plurality of oil seepage grooves arranged in a circular shape at both upper and lower ends;

[0010] Through the above technical solution, the lubricating oil can quickly wrap around the ball for lubrication through multiple oil seepage grooves.

[0011] Furthermore, a curved surface is provided at the center of the inner wall of the first wear-resistant layer and the center of the outer wall of the second wear-resistant layer;

[0012] The above technical solution facilitates the rolling of multiple balls inside the two curved surfaces.

[0013] Furthermore, the first wear-resistant layer and the second wear-resistant layer are both formed by splicing two semi-cylinders;

[0014] The above technical solution facilitates the splicing installation when replacing and installing the first wear-resistant layer and the second wear-resistant layer.

[0015] Furthermore, the upper and lower ends of the outer wall of the inner ring and the upper and lower ends of the inner wall of the outer ring are provided with card slots, and the outer edges and inner edges of the two sealing covers are respectively arranged inside the four card slots;

[0016] The above technical solution facilitates the limited installation of the two sealing covers.

[0017] Furthermore, oil inlet holes are symmetrically arranged on both sides of the center of the upper end surface of the sealing cover;

[0018] Through the above technical solution, lubricating oil is injected through the oil inlet hole, which facilitates lubrication.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, when the wear-resistant and long-life deep groove ball bearing is used, the first wear-resistant layer and the second wear-resistant layer are arranged on both sides of the plurality of balls, so as to reduce the wear between the inner ring and the outer ring of the plurality of balls and improve the service life of the bearing.

[0021] 2. In the utility model, oil is infiltrated into the ends of the balls through a plurality of oil infiltration grooves, so that the lubricating oil is more thoroughly and quickly wrapped around the outer sides of the plurality of balls, thereby improving the efficiency of lubrication.

[0022] 3. In the utility model, the first wear-resistant layer and the second wear-resistant layer are fixed inside the first groove and the second groove by using screws. After being worn out due to long-term use, the first wear-resistant layer and the second wear-resistant layer can be removed and replaced to reduce material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a wear-resistant and long-life deep groove ball bearing proposed by the utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view of a wear-resistant and long-life deep groove ball bearing proposed by the utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the outer ring of a wear-resistant and long-life deep groove ball bearing proposed by the utility model;

[0026] Figure 4 for Figure 2 A magnified schematic diagram of center A.

[0027] Legend:

[0028] 1. Outer ring; 2. Sealing cover; 3. Oil inlet hole; 4. Inner ring; 5. Wear-resistant structure; 501. First groove; 502. First wear-resistant layer; 503. Second groove; 504. Second wear-resistant layer; 505. Arc surface; 506. Oil seepage groove; 6. Cage; 7. Ball. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-4 The utility model provides an embodiment: a wear-resistant and long-life deep groove ball bearing, comprising an outer ring 1, an inner ring 4, a plurality of balls 7 and two retaining frames 6, the plurality of balls 7 are arranged in a circular shape on the inner side of the outer ring 1, the two retaining frames 6 are arranged at the upper and lower ends of the plurality of balls 7, the plurality of balls 7 are limited by the two retaining frames 6, the inner ring 4 is arranged on the inner side of the two retaining frames 6, a second groove 503 is provided at the center of the inner wall of the outer ring 1, a first groove 501 is provided at the center of the outer wall of the inner ring 4, a wear-resistant structure 5 is provided inside the first groove 501 and the second groove 503, the wear-resistant structure 5 can improve the wear resistance and can also be replaced and used, thereby increasing the service life and reducing the use cost, the upper end of the upper retaining frame 6 and the lower end of the lower retaining frame 6 are both provided with a sealing cover 2, which is sealed by the sealing cover 2 to reduce dust from entering and damaging the balls 7.

[0031] The wear-resistant structure 5 includes a first wear-resistant layer 502 and a second wear-resistant layer 504. The first wear-resistant layer 502 is arranged inside the first groove 501, and the second wear-resistant layer 504 is arranged at the center inside the second groove 503. The first wear-resistant layer 502 and the second wear-resistant layer 504 are used to improve wear resistance, reduce wear, and increase service life. The upper and lower ends of the inner wall of the second wear-resistant layer 504 are arranged in a circular shape with a plurality of oil seepage grooves 506. The lubricating oil is used to quickly wrap the ball 7 for lubrication through the plurality of oil seepage grooves 506. The center of the inner wall of the first wear-resistant layer 502 and the center of the outer wall of the second wear-resistant layer 504 are both provided with an arc surface 505, which facilitates the rolling of multiple balls 7 inside the two arc surfaces 505. The first wear-resistant layer 502 and the second wear-resistant layer 504 are both formed by splicing two semi-cylinders, which facilitates the splicing and installation when replacing and installing the first wear-resistant layer 502 and the second wear-resistant layer 504.

[0032] Slots are provided at the upper and lower ends of the outer wall of the inner ring 4 and the upper and lower ends of the inner wall of the outer ring 1. The outer edges and inner edges of the two sealing covers 2 are respectively arranged in the four slots, which is convenient for limiting the installation of the two sealing covers 2. Oil inlet holes 3 are symmetrically provided on both sides of the center of the upper end surface of the sealing cover 2 at the upper part, and lubricating oil is injected through the oil inlet holes 3 to facilitate lubrication.

[0033] Working principle: When in use, by setting the first wear-resistant layer 502 and the second wear-resistant layer 504 on both sides of the multiple balls 7, the wear of the multiple balls 7 between the inner ring 4 and the outer ring 1 is reduced, and the service life of the bearing is improved. Then, the ends of the balls 7 are infiltrated with oil through the multiple oil infiltration grooves 506, so that the lubricating oil can be more thoroughly and quickly wrapped around the outer sides of the multiple balls 7, thereby improving the lubrication efficiency. The first wear-resistant layer 502 and the second wear-resistant layer 504 are fixed inside the first groove 501 and the second groove 503 by using screws. After wear and tear caused by long-term use, the first wear-resistant layer 502 and the second wear-resistant layer 504 are removed and replaced to reduce material loss.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant and long-life deep groove ball bearing, comprising an outer ring (1), an inner ring (4), a plurality of balls (7) and two retaining frames (6), wherein the plurality of balls (7) are arranged in a circular shape on the inner side of the outer ring (1), the two retaining frames (6) are arranged at the upper and lower ends of the plurality of balls (7), and the inner ring (4) is arranged on the inner sides of the two retaining frames (6), characterized in that: A second groove (503) is provided at the center of the inner wall of the outer ring (1), and a first groove (501) is provided at the center of the outer wall of the inner ring (4). Wear-resistant structures (5) are provided inside the first groove (501) and the second groove (503). A sealing cover (2) is provided at the upper end of the retaining frame (6) and the lower end of the retaining frame (6).

2. A wear-resistant and long-life deep groove ball bearing according to claim 1, characterized in that: The wear-resistant structure (5) comprises a first wear-resistant layer (502) and a second wear-resistant layer (504), wherein the first wear-resistant layer (502) is arranged inside the first groove (501), and the second wear-resistant layer (504) is arranged at the center inside the second groove (503).

3. A wear-resistant and long-life deep groove ball bearing according to claim 2, characterized in that: A plurality of oil seepage grooves (506) are arranged in a circular shape at both upper and lower ends of the inner side wall of the second wear-resistant layer (504).

4. A wear-resistant and long-life deep groove ball bearing according to claim 2, characterized in that: A curved surface (505) is provided at the center of the inner wall of the first wear-resistant layer (502) and at the center of the outer wall of the second wear-resistant layer (504).

5. The wear-resistant and long-life deep groove ball bearing according to claim 2, characterized in that: The first wear-resistant layer (502) and the second wear-resistant layer (504) are both formed by splicing two semi-cylinders.

6. The wear-resistant and long-life deep groove ball bearing according to claim 1, characterized in that: The upper and lower ends of the outer wall of the inner ring (4) and the upper and lower ends of the inner wall of the outer ring (1) are provided with slots, and the outer edges and inner edges of the two sealing covers (2) are respectively arranged inside the four slots.

7. The wear-resistant and long-life deep groove ball bearing according to claim 1, characterized in that: Oil inlet holes (3) are symmetrically arranged on both sides of the center of the upper end surface of the sealing cover (2).

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