Wear-resistant bearing

Abstract

The utility model provides a wear-resistant bearing, which relates to the field of bearings and comprises a shaft outer ring, a ceramic inner ring and a retainer, a dust cover is arranged on the inner side of the shaft outer ring through a groove, the ceramic inner ring is arranged on the inner wall of the shaft outer ring, the retainer is arranged on the inner side of the dust cover on the inner side of the shaft outer ring, and a plurality of groups of bearing balls are equidistantly arranged on the inner side of the retainer. According to the bearing, the temperature generated during high-speed rotation of the bearing can be reduced through the ceramic inner ring, the influence of thermal expansion and cold contraction on the whole bearing is reduced, so that the heat loss of the whole bearing is reduced, and meanwhile, compared with a traditional steel inner ring, the ceramic inner ring has higher hardness and better wear resistance, so that the service life of the bearing is prolonged, and the service life of the bearing is prolonged. Therefore, friction loss in the contact process with the bearing ball can be reduced, and the service life of the whole bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a wear-resistant bearing. Background Art

[0002] Comparative document: CN 205559558 U, proposes a new type of bearing, which ensures the lubrication effect of the ball by refueling on both sides of the raceway, improves the utilization rate of the lubricating oil, avoids the increase of bearing temperature and damage to the balls, greatly increases the service life of the bearing, and saves costs. The problem with the above technical solution is that during the use of the bearing, the internal bearing balls will rub against the outer ring of the bearing, which will increase the overall friction loss of the bearing balls when used for a long time, thereby reducing the service life of the bearing. At the same time, the connection area between the inner side of the bearing and the bearing balls is usually directly exposed to the outside, so the connection area is susceptible to dust, particles or other solid impurities, thereby affecting the friction performance and shortening the bearing life. At the same time, the exposed area will cause lubricant loss, reduce the lubrication effect, increase friction and wear, and reduce the service life of the bearing. Utility Model Content

[0003] The purpose of the utility model is to solve the following problems existing in the prior art: during the use of the bearing, the internal bearing ball will rub against the outer ring of the bearing, which will increase the overall friction loss of the bearing ball when used for a long time, thereby reducing the service life of the bearing. At the same time, the connection area between the inner side of the bearing and the bearing ball is usually directly exposed to the outside, so that the connection area is easily invaded by dust, particles or other solid impurities, thereby affecting the friction performance and shortening the life of the bearing. At the same time, the exposed area will cause lubricant loss, reduce the lubrication effect, increase friction and wear, and reduce the service life of the bearing.

[0004] In order to solve the problems existing in the prior art, the utility model provides a wear-resistant bearing, including a shaft outer ring, a ceramic inner ring and a retaining frame, a dust cover is provided on the inner side of the shaft outer ring through a groove, a ceramic inner ring is provided on the inner wall of the shaft outer ring, a retaining frame is provided on the inner side of the dust cover on the inner side of the shaft outer ring, a plurality of groups of bearing balls are equidistantly provided on the inner side of the retaining frame, and a shaft inner ring is provided on the bottom side of the retaining frame.

[0005] Furthermore, the outer side of the shaft outer ring adopts a side angle design, and the inner groove of the shaft outer ring is provided with an inscribed angle matching the dust cover. The rolling elements can be supported and positioned by the shaft outer ring, and the outer side angle design can improve the rigidity of the shaft outer ring, reduce deformation and improve the load-bearing capacity.

[0006] Furthermore, the dust cover as a whole adopts a trapezoidal hollow structure, and one side of the dust cover contacts the inner side of the outer ring of the shaft. The dust cover can be used to protect the inner side of the bearing from dust, thereby extending the service life of the bearing.

[0007] Furthermore, the ceramic inner ring is integrally embedded in the inner side of the shaft outer ring, and the inner side of the ceramic inner ring contacts the bearing ball. The ceramic inner ring can be used to reduce the friction of the bearing ball during rotation.

[0008] Furthermore, the retaining frame is made entirely of stainless steel and can be used to separate the bearing balls.

[0009] Furthermore, an inner cut angle matching the dust cover is provided on the outer side of the inner ring of the shaft, and the inner ring of the shaft can be used to support and position the rolling body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model can reduce the temperature generated when the bearing rotates at high speed through the ceramic inner ring, reduce the influence of thermal expansion and contraction on the bearing as a whole, thereby reducing the overall heat loss of the bearing. At the same time, compared with the traditional steel inner ring, the ceramic inner ring has higher hardness and better wear resistance, thereby reducing the friction loss during the contact with the bearing ball and extending the service life of the bearing as a whole.

[0012] The utility model can seal and protect the inner side of the shaft outer ring through the dust cover, thereby effectively preventing dust, particles and other pollutants in the air from entering the bearing, thereby protecting the rolling element and lubricant, reducing the volatilization and loss of the lubricant, ensuring that the lubricant remains in the bearing, providing sufficient lubrication, thereby reducing friction and wear, and extending the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the shaft outer ring of the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the retainer of the utility model;

[0016] Figure numerals: 1, shaft outer ring; 2, dust cover; 3, ceramic inner ring; 4, retaining rack; 5, bearing ball; 6, shaft inner ring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0018] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0019] Example 1

[0020] like Figure 1-3 As shown, a wear-resistant bearing comprises an outer ring 1, a ceramic inner ring 3 and a retaining frame 4. A dust cover 2 is provided on the inner side of the outer ring 1 through a groove, a ceramic inner ring 3 is provided on the inner wall of the outer ring 1, a retaining frame 4 is provided on the inner side of the dust cover 2 on the inner side of the outer ring 1, a plurality of groups of bearing balls 5 are equidistantly provided on the inner side of the retaining frame 4, and a shaft inner ring 6 is provided on the bottom side of the retaining frame 4.

[0021] Working principle description: During the assembly of the bearing as a whole, the staff will position and fix the bearing balls 5 equidistantly through the retaining frame 4, and install the retaining frame 4 to the inner side of the shaft outer ring 1. After the overall installation of the retaining frame 4 is completed, the staff will install the dust cover 2 through the inner angle of the groove that matches the dust cover 2. Finally, the staff will install the inner angle of the outer side of the shaft inner ring 6 in conjunction with the dust cover 2. After the overall installation is completed, the dust cover 2 can be used to seal and protect the inner side of the shaft outer ring 1, thereby effectively preventing dust, particles and other pollutants in the air from entering the bearing, thereby protecting the rolling elements and lubricants and reducing Low lubricant volatilization and loss ensure that the lubricant remains inside the bearing, providing sufficient lubrication, thereby reducing friction and wear and extending the service life of the bearing. During the rotation of the bearing as a whole, the internal bearing ball 5 will rub against the ceramic inner ring 3. The ceramic inner ring 3 can reduce the temperature generated when the bearing rotates at high speed, reduce the impact of thermal expansion and contraction on the bearing as a whole, thereby reducing the overall heat loss of the bearing. At the same time, compared with the traditional steel inner ring, the ceramic inner ring 3 has higher hardness and better wear resistance, thereby reducing the friction loss during the contact process with the bearing ball 5 and extending the overall service life of the bearing.

[0022] The shaft outer ring 1 is mainly used to support and position rolling elements. When selected, the outer side of the shaft outer ring 1 adopts a side angle design, and the inner groove of the shaft outer ring 1 is provided with an inscribed angle matching the dust cover 2.

[0023] The dust cover 2 is mainly used to prevent dust, dirt, liquid and other impurities from entering the interior of the bearing. When selected, the dust cover 2 adopts a trapezoidal hollow structure as a whole, and one side of the dust cover 2 is connected to the inner side of the shaft outer ring 1.

[0024] The ceramic inner ring 3 is mainly used to reduce the friction of the bearing ball 5 during the rotation process. When selected, the ceramic inner ring 3 is integrally embedded in the inner side of the shaft outer ring 1 , and the inner side of the ceramic inner ring 3 contacts the bearing ball 5 .

[0025] The retainer 4 is mainly used to separate the bearing balls 5. When selected, the retainer 4 is made of stainless steel as a whole.

[0026] The bearing ball 5 is mainly used to reduce the friction between mechanical parts. When selecting, a conventional selection can be made in the prior art according to the needs.

[0027] The shaft inner ring 6 is mainly used to support and position the rolling element. When selected, an inner cutting angle matching the dust cover 2 is provided on the outer side of the shaft inner ring 6 .

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wear-resistant bearing, comprising a shaft outer ring (1), a ceramic inner ring (3) and a retaining frame (4), Features: A dust cover (2) is provided on the inner side of the shaft outer ring (1) through a groove, a ceramic inner ring (3) is provided on the inner wall of the shaft outer ring (1), a retaining frame (4) is provided on the inner side of the dust cover (2) on the inner side of the shaft outer ring (1), a plurality of groups of bearing balls (5) are equidistantly provided on the inner side of the retaining frame (4), and a shaft inner ring (6) is provided on the bottom side of the retaining frame (4).

2. A wear-resistant bearing according to claim 1, Features: The outer side of the shaft outer ring (1) adopts a side angle design, and the inner groove of the shaft outer ring (1) is provided with an inscribed angle matching the dust cover (2).

3. A wear-resistant bearing according to claim 1, Features: The dust cover (2) as a whole adopts a trapezoidal hollow structure, and one side of the dust cover (2) is in contact with the inner side of the shaft outer ring (1).

4. A wear-resistant bearing according to claim 1, Features: The ceramic inner ring (3) is integrally embedded in the inner side of the shaft outer ring (1), and the inner side of the ceramic inner ring (3) is in contact with the bearing ball (5).

5. The wear-resistant bearing according to claim 1, Features: The retaining frame (4) is entirely made of stainless steel.

6. A wear-resistant bearing according to claim 1, Features: The outer side of the shaft inner ring (6) is provided with an inscribed angle matching the dust cover (2).

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