CN211288453U - Wear-resistant dustproof long-life bearing - Google Patents

Abstract

The utility model discloses a bearing aims at providing a stand wear and tear dustproof long-life bearing, and its technical scheme main points are, including bearing inner race, arrange the bearing ball between bearing inner race and the bearing inner race in, the bearing inner race is equipped with the shield outward, be equipped with the joint on the shield, be equipped with outer convex ring on the joint, be equipped with the draw-in groove with outer convex ring adaptation on the bearing inner race, be equipped with the interference dop on the bearing inner race, the top and the interference dop laminating of joint, the bearing inner race inboard is equipped with the mounting groove, the bearing ball is installed in the mounting groove, bearing inner race and bearing inner race all are equipped with the ceramic wearing layer. The utility model has the advantages that: the dust can be prevented from entering the bearing, the wear resistance of the bearing is improved, and the service life of the bearing is prolonged.

Description

Wear-resistant dustproof long-life bearing

Technical Field

The utility model relates to a bearing, more specifically say, it relates to a stand wear and tear dustproof long-life bearing.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. The main function of the bearing is to support, i.e. literally explained for bearing the shaft, but this is only a part of its function, and to support it is essentially capable of bearing radial loads, it can also be understood that it is for fixing the shaft, which makes it only able to rotate, but to control its axial and radial movements, most bearings must have lubricating oil, which is responsible for reducing losses at high speed operation, not only increasing energy consumption due to friction, but also being more likely to damage the bearing. The bearing is easy to wear after long-time use, has low strength and short service life, and influences the normal use of matched equipment. And the poor leakproofness of current bearing leads to impurity to get into inside easily, causes unusual wearing and tearing, reduces the life of bearing.

In summary, a wear-resistant bearing with good dustproof effect is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a stand wear and tear dustproof long-life bearing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a stand wear and tear dustproof long-life bearing, includes bearing inner race, arranges the bearing ball between bearing inner race and the bearing inner race in, the bearing inner race is equipped with the shield outward, be equipped with the joint on the shield, be equipped with the evagination circle on the joint, be equipped with the draw-in groove with the evagination circle adaptation on the bearing inner race, be equipped with the interference dop on the bearing inner race, the top and the interference dop laminating of joint, the bearing inner race inboard is equipped with the mounting groove, the bearing ball is installed in the mounting groove, bearing inner race and bearing inner race all are equipped with the ceramic wearing layer.

Through adopting above-mentioned technical scheme, be connected through the joint between shield and the bearing inner race. Outer fringe integrated into one piece of shield has the joint, and the overhead integrated into one piece of joint has the evagination circle, and integrated into one piece makes the structure more firm, and is stable, and production is more convenient, and the draw-in groove with the full adaptation of evagination is seted up at the edge of bearing inner race, and the cross-section of draw-in groove and evagination circle is convex, and the joint is the elastic plastic material moreover, can warp easily and reply original dress, convenient dismantlement. Bearing inner race integrated into one piece has the interference dop, the top of joint and the lateral wall laminating of interference dop, the interference dop of bearing inner race and the cooperation of joint both can strengthen joint strength, prevent to drop, connect inseparabler, prevent that the dust from getting into, the mounting groove has been seted up to the outer lane of bearing for prevent the bearing ball, the ceramic wearing layer is all installed to the inside of bearing inner race and the outside of bearing inner race, can effectively reduce the wearing and tearing of bearing.

The utility model discloses further set up to: the outer convex ring is sleeved with a dustproof sleeve, and the dustproof sleeve is made of rubber.

Through adopting above-mentioned technical scheme, the dirt proof boot cover is established outside the outer protruding circle, and the dirt proof boot is the rubber material, both can strengthen the frictional force between outer protruding circle and the draw-in groove, can also strengthen the leakproofness, has good dustproof effect.

The utility model discloses further set up to: and a bearing retainer is arranged between the bearing outer ring and the bearing inner ring, and the bearing balls are arranged in the bearing retainer in an annular array.

Through adopting above-mentioned technical scheme, the bearing holder is used for supporting the bearing ball, and is more stable when making the bearing function, and bearing ball annular array installs in the holder, can make the motion more steady, less loss.

The utility model discloses further set up to: the bearing retainer is made of ceramic materials.

By adopting the technical scheme, compared with common steel, the ceramic has the advantages of corrosion resistance, high temperature resistance, light weight, friction resistance and long service life, and is suitable for operation under severe conditions with corrosive media; the weight is light, so that the centrifugal effect on the outer ring during rotation can be reduced, and the service life is prolonged; because the elastic modulus of the ceramic is higher than that of steel, the ceramic is not easy to deform when stressed, thereby being beneficial to improving the working speed and achieving higher precision.

The utility model discloses further set up to: the bearing outer ring and the bearing inner ring are made of Cr14Mo4 bearing steel.

By adopting the technical scheme, the Cr14Mo4 bearing steel is a high-quality steel containing molybdenum, is also a high-temperature bearing steel which is most widely applied in all countries in the world, has the characteristics of a common bearing, also has higher high-temperature dimensional stability, high-temperature hardness and high-temperature contact fatigue performance, and can be used at the working temperature lower than 315 ℃ for a long time.

The utility model has the advantages that: the dust can be prevented from entering the bearing, the wear resistance of the bearing is improved, and the service life of the bearing is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

1. The bearing comprises a bearing outer ring, 11 clamping grooves, 12 interference clamping heads, 2 bearing inner rings, 3 bearing balls, 4 dustproof covers, 41 clamping heads, 42 outer convex rings, 43 dustproof sleeves, 5 ceramic wear-resistant layers and 6 bearing retainers.

Detailed Description

The present invention is further described with reference to fig. 1.

The utility model provides a stand wear and tear dustproof long-life bearing, including bearing inner race 1, bearing inner race 2, arrange bearing inner race 1 and bearing inner race 2 between bearing inner race 3 in, bearing inner race 1 is equipped with shield 4 outward, be equipped with joint 41 on the shield 4, be equipped with evagination circle 42 on the joint 41, be equipped with the draw-in groove 11 with evagination circle 42 adaptation on the bearing inner race 1, be equipped with interference dop 12 on the bearing inner race 1, the top and the laminating of interference dop 12 of joint 41, 1 inboard of bearing inner race is equipped with the mounting groove, bearing ball 3 installs in the mounting groove, bearing inner race 1 and bearing inner race 1 all are equipped with ceramic wearing layer. The dust cover 4 is connected with the bearing outer ring 1 through clamping. Outer fringe integrated into one piece of shield 4 has joint 41, and integrated into one piece has outer convex ring 42 on joint 41, and integrated into one piece makes the structure more firm, and is stable, and production is more convenient, and bearing inner race 1's edge is seted up with the draw-in groove 11 of the full adaptation of evagination, and the cross-section of draw-in groove 11 and outer convex ring 42 is arc, and joint 41 is the elastic plastic material moreover, can warp easily and reply original dress, convenient dismantlement. Bearing inner race 1 integrated into one piece has interference dop 12, the top of joint head 41 and the lateral wall laminating of interference dop 12, bearing inner race 1's interference dop 12 and joint head 41's cooperation both can strengthen joint strength, prevent to drop, it is inseparabler to connect, prevent that the dust from getting into, the mounting groove has been seted up to the outer lane of bearing, be used for preventing bearing ball 3, ceramic wearing layer 5 is all installed to bearing inner race 2's inside and bearing inner race 1's outside, can effectively reduce the wearing and tearing of bearing. The dust-proof sleeve 43 is sleeved outside the convex ring 42, the dust-proof sleeve 43 is made of rubber, friction force between the convex ring 42 and the clamping groove 11 can be enhanced, sealing performance can be enhanced, and a good dust-proof effect is achieved. The bearing retainer 6 is used for supporting the bearing balls 3, so that the bearing is more stable in operation, and the bearing balls 3 are arranged in the retainer in an annular array mode, so that the movement is more stable and less loss is caused. The bearing retainer 6 is made of ceramic, and compared with common steel, the ceramic has the advantages of corrosion resistance, high temperature resistance, light weight, friction resistance and long service life, and is suitable for operation under severe conditions with corrosive media; the weight is light, so that the centrifugal effect on the outer ring during rotation can be reduced, and the service life is prolonged; because the elastic modulus of the ceramic is higher than that of steel, the ceramic is not easy to deform when stressed, thereby being beneficial to improving the working speed and achieving higher precision. The bearing outer ring 1 and the bearing inner ring 2 are made of Cr14Mo4 bearing steel, the Cr14Mo4 bearing steel is high-quality steel containing molybdenum and is also high-temperature bearing steel which is most widely applied in all countries in the world, and the bearing steel has the characteristics of a common bearing, also has high-temperature dimensional stability, high-temperature hardness and high-temperature contact fatigue performance, and can be used at the working temperature lower than 315 ℃ for a long time.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims (5)

1. The utility model provides a stand wear and tear dustproof long-life bearing, includes bearing inner race (1), bearing inner race (2), arranges bearing inner race (1) and bearing inner race (2) between bearing ball (3) in, a serial communication port, bearing inner race (1) is equipped with shield (4) outward, be equipped with joint (41) on shield (4), be equipped with evagination circle (42) on joint (41), be equipped with draw-in groove (11) with evagination circle (42) adaptation on bearing inner race (1), be equipped with interference dop (12) on bearing inner race (1), the top and the laminating of interference dop (12) of joint (41), bearing inner race (1) inboard is equipped with the mounting groove, bearing ball (3) are installed in the mounting groove, bearing inner race (1) and bearing inner race (1) all are equipped with ceramic wearing layer (5).

2. A wear-resistant, dust-proof and long-life bearing as claimed in claim 1, wherein the outer flange (42) is externally sleeved with a dust-proof sleeve (43), and the dust-proof sleeve (43) is made of rubber.

3. A wear-resistant, dust-proof and long-life bearing according to claim 1, characterized in that a bearing cage (6) is provided between the bearing outer ring (1) and the bearing inner ring (2), and the bearing balls (3) are mounted in an annular array in the bearing cage (6).

4. A wear-resistant, dust-proof and long-life bearing according to claim 3, characterized in that the bearing holder (6) is of ceramic material.

5. A wear-resistant, dust-proof and long-life bearing as claimed in claim 1, characterized in that the bearing inner ring (2) and the bearing outer ring (1) are made of Cr14Mo4 bearing steel.

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