CN212377120U

CN212377120U - High-strength bearing inner ring

Info

Publication number: CN212377120U
Application number: CN202020926939.1U
Authority: CN
Inventors: 黄炜育
Original assignee: Xinchang Chuangfeng Machinery Co ltd
Current assignee: Xinchang Chuangfeng Machinery Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-19
Anticipated expiration: 2030-05-27

Abstract

The utility model belongs to the technical field of the bearing accessory, especially, relate to a high strength bearing inner ring, include the ring body of being made by the bearing steel, have radial inside slot and the assembly annular of seting up on the ring body inner wall, the slot is used for supplying the ball to slide, and the assembly annular is used for supplying the embedding of the seal lip part on the shield, and the assembly annular has two, and is located the both sides of slot respectively, all sets up the intercommunicating pore that accesss to the slot on the inner wall of two assembly annulars, and the intercommunicating pore has a plurality of and follows circumference direction evenly distributed. The utility model discloses still be provided with the assembly annular on the ring body, when installing the shield, the seal lip on the shield can be embedded into the assembly annular, thereby can play fixed effect to the shield, and because of the existence of assembly annular, the seal lip on the shield can be set up to double-deck or multilayer seal lip, and then the leakproofness of increase; the utility model discloses after being provided with the assembly annular, can increase the addition of lubricating grease, and then improve the life of bearing, reduce maintenance cycle.

Description

High-strength bearing inner ring

Technical Field

The utility model belongs to the technical field of the bearing accessory, especially, relate to a high strength bearing inner ring.

Background

The bearing is a supporting part in a mechanical transmission mechanism, is widely applied to industries such as automobiles, medical instruments, sports equipment, aerospace equipment and the like, is used for determining the relative movement position of a rotating shaft and other parts, directly influences the working performance of the mechanical complete machine by the quality of the bearing, and drives the relevant mechanism to move through the operation of the bearing.

Current bearing, generally include the bearing outer race and be located the intra-annular bearing inner ring of bearing outer race, be equipped with the ball that can rotate between bearing outer race and the bearing inner ring, in entering into the bearing for avoiding external debris, lead to the ball, the wearing and tearing of inner and outer ring, still have the shield of embedding between the inner and outer ring to this, however current shield installation is dismantled comparatively trouble, and the sealing lip on the shield is connected the compactness less than between the inner ring, long-time back, there is the condition of oil leak easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide a high strength just, bearing inner ring of easy assembly.

The purpose of the utility model is realized like this: a high strength bearing inner ring which characterized in that: including the ring body of being made by the bearing steel, have radial inside slot and the assembly annular of seting up on the ring body inner wall, the slot is used for supplying the ball to slide, and the assembly annular is used for supplying the embedding of the sealing lip part on the shield, and the assembly annular has two, and is located the both sides of slot respectively, all sets up the intercommunicating pore that accesss to the slot on the inner wall of two assembly annular, and the intercommunicating pore has a plurality of and follows circumferential direction evenly distributed.

By adopting the technical scheme, the traditional bearing inner ring is generally only provided with a groove for the sliding of a ball on the outer surface, so that the assembly ring groove is further arranged on the ring body, when the dust cover is installed, the sealing lip on the dust cover can be embedded into the assembly ring groove, the dust cover can be fixed, and the sealing lip on the dust cover can be arranged into double-layer or multi-layer sealing lips due to the existence of the assembly ring groove, so that the sealing performance is improved;

because the bearing needs to be added with lubricating grease in the assembling process, after the ring groove is assembled, the adding amount of the lubricating grease can be increased, the service life of the bearing is further prolonged, and the maintenance period is shortened; because of the existence of bearing retainer, lubricating grease need through on can using the ball after very little gap, for improving lubricating efficiency, to this the utility model discloses still set up the intercommunicating pore that accesss to the slot on the assembly annular, on the ball that makes lubricating grease flow into on the slot that can be quick through the intercommunicating pore.

The utility model discloses further set up to: the communicating hole is sequentially divided into a first flow guide section with a port opposite to the assembling ring groove, a second flow guide section with a middle section and a third flow guide section with a port opposite to the groove, the second flow guide section is a straight hole, the inner wall of the first flow guide section is a first inclined ring surface with gradually increasing inner diameter from inside to outside, and the inner wall of the third flow guide section is a second inclined ring surface with gradually increasing inner diameter from inside to outside; the maximum outer diameter of the second inclined ring surface is larger than that of the first inclined ring surface.

Through adopting above-mentioned technical scheme, set up the intercommunicating pore into first water conservancy diversion section, second water conservancy diversion section and third water conservancy diversion section respectively to further improve the water conservancy diversion efficiency of lubricating grease.

The utility model discloses further set up to: and the ports of the third flow guide sections are provided with round corners.

Through adopting above-mentioned technical scheme, set up the fillet on the port of third water conservancy diversion section to avoid the ball when the slot internal rotation, with its fish tail, and then reduce wearing and tearing.

The utility model discloses further set up to: fillets are arranged at the outer edges of the two ends of the ring body, a chamfer is arranged at the joint between the inner wall of the assembly ring groove, which is far away from the communicating hole, and the outer wall of the ring body, the chamfer forms a guide inclined plane, and the inclination of the guide inclined plane is 15-30 degrees.

Through adopting above-mentioned technical scheme, set up the fillet on the ring body, set up the direction inclined plane on the assembly groove to the installation and the dismantlement of shield are convenient for.

The utility model discloses further set up to: the groove is internally provided with a wear-resistant layer which is made of high-strength carbon fibers.

By adopting the technical scheme, the balls are directly acted on the grooves of the ring body, so that a wear-resistant layer is arranged on the grooves for improving the wear-resistant performance of the ring body; the high-strength carbon fiber is a novel fiber material of high-strength and high-modulus fiber with the carbon content of more than 95%, has a small friction coefficient and lubricity, and is used as a raw material of a wear-resistant layer.

The utility model has the advantages that:

the traditional bearing inner ring is generally only provided with a groove for sliding balls on the outer surface, so that the assembly ring groove is further arranged on the ring body, when the dust cover is installed, the sealing lip on the dust cover can be embedded into the assembly ring groove, the dust cover can be fixed, and the sealing lip on the dust cover can be arranged into a double-layer or multi-layer sealing lip due to the existence of the assembly ring groove, so that the sealing performance is improved;

Drawings

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

fig. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

the reference numbers in the figures are: 1. a ring body; 11. a trench; 12. assembling a ring groove; 13. a communicating hole; 131. a first flow guide section; 1311. a first toroidal surface; 132. a second flow guide section; 133. a third flow guide section; 1331. a second toroidal surface; 14. a guide slope; 15. and a wear-resistant layer.

Detailed Description

In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:

the utility model provides a high strength bearing inner ring, as shown in fig. 1 and fig. 2, wherein, include the ring body 1 of being made by the bearing steel, there are radial inside slot 11 and the assembly annular 12 of seting up on the 1 inner wall of ring body, slot 11 is used for supplying the ball to slide, assembly annular 12 is used for supplying the partial embedding of seal lip on the shield, assembly annular 12 has two, and be located the both sides of slot 11 respectively, all set up the intercommunicating pore 13 that accesss to slot 11 on the inner wall of two assembly annular 12, intercommunicating pore 13 has a plurality of and follows circumferential direction evenly distributed.

The traditional bearing inner ring is generally only provided with a groove 11 for sliding balls on the outer surface, so that the assembly ring groove 12 is further arranged on the ring body 1, when the dust cover is installed, the sealing lip on the dust cover can be embedded into the assembly ring groove 12, the dust cover can be fixed, and the sealing lip on the dust cover can be arranged into double-layer or multi-layer sealing lips due to the existence of the assembly ring groove 12, so that the sealing performance is improved;

because the bearing needs to be added with lubricating grease in the assembling process, after the ring groove 12 is assembled, the adding amount of the lubricating grease can be increased, the service life of the bearing is further prolonged, and the maintenance period is shortened; because of the existence of bearing retainer, lubricating grease need through on can using the ball after very little gap, for improving lubricating efficiency, to this the utility model discloses still set up the intercommunicating pore 13 that accesss to slot 11 on assembling ring groove 12, on messenger's lubricating grease that can be quick through intercommunicating pore 13 flowed into the ball on slot 11.

As shown in fig. 2 and 3, the communication hole 13 is sequentially divided into a first flow guiding section 131 with a port facing the assembly ring groove 12, a second flow guiding section 132 with a middle section, and a third flow guiding section 133 with a port facing the groove 11, the second flow guiding section 132 is a straight hole, the inner wall of the first flow guiding section 131 is a first inclined ring surface 1311 with an inner diameter gradually increasing from inside to outside, and the inner wall of the third flow guiding section 133 is a second inclined ring surface 1331 with an inner diameter gradually increasing from inside to outside; the maximum outer diameter of second beveled ring surface 1331 is greater than the maximum outer diameter of first beveled ring surface 1311 to further improve the flow guiding efficiency of the grease.

Optimally, the ports of the third flow guiding section 133 are all provided with fillets.

By providing rounded corners at the ends of the third flow guiding section 133, the ball is prevented from being scratched when rotating in the groove 11, thereby reducing wear.

Optimally, the outer edges of the two ends of the ring body 1 are provided with fillets, a chamfer is arranged at the joint between the inner wall of the assembly ring groove 12 far away from the communicating hole 13 and the outer wall of the ring body 1, the chamfer forms a guide inclined plane 14, and the inclination of the guide inclined plane 14 is 15-30 degrees so as to facilitate the installation and the disassembly of the dust cover.

Preferably, as shown in fig. 3, a wear-resistant layer 15 is disposed in the groove 11, and the wear-resistant layer 15 is made of high-strength carbon fiber.

Because the balls are directly acted on the groove 11 of the ring body 1, in order to improve the wear-resisting property of the ring body 1, a wear-resisting layer 15 is arranged on the groove 11; the high-strength carbon fiber is a novel fiber material of a high-strength and high-modulus fiber having a carbon content of 95% or more, has a small friction coefficient and lubricity, and is used as a raw material of the wear-resistant layer 15.

The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A high strength bearing inner ring which characterized in that: include ring body (1) made by the bearing steel, have radial inside slot (11) and assembly annular (12) of seting up on ring body (1) inner wall, slot (11) are used for supplying the ball to slide, assembly annular (12) are used for supplying the partial embedding of seal lip on the shield, assembly annular (12) have two, and are located respectively the both sides of slot (11), two all seted up on the inner wall of assembly annular (12) and have access to intercommunicating pore (13) of slot (11), intercommunicating pore (13) have a plurality of and follow circumference direction evenly distributed.

2. A high strength bearing inner ring according to claim 1, wherein: the intercommunicating pore (13) divide into the port in proper order just right the second water conservancy diversion section (132) and the port of first water conservancy diversion section (131), the interlude of assembly annular (12) are just right the third water conservancy diversion section (133) of slot (11), second water conservancy diversion section (132) are straight hole, the inner wall of first water conservancy diversion section (131) is first inclined torus (1311) of inside and outside internal diameter crescent gradually, the inner wall of third water conservancy diversion section (133) is second inclined torus (1331) of inside and outside internal diameter crescent gradually.

3. A high strength bearing inner ring according to claim 2, wherein: the maximum outer diameter of the second toroidal surface (1331) is greater than the maximum outer diameter of the first toroidal surface (1311).

4. A high strength bearing inner ring according to claim 2, wherein: and the ports of the third flow guide section (133) are provided with round corners.

5. A high strength bearing inner ring according to any one of claims 1 to 4, wherein: the outer edge department at ring body (1) both ends all is provided with the fillet, assembly ring groove (12) keep away from its inner wall of intercommunicating pore (13) with the junction between the outer wall of ring body (1) is provided with the chamfer, and this chamfer forms direction inclined plane (14).

6. The high strength bearing inner ring as claimed in claim 5, wherein: the inclination of the guide inclined surface (14) is 15-30 degrees.

7. The high strength bearing inner ring as claimed in claim 6, wherein: a wear-resistant layer (15) is arranged in the groove (11), and the wear-resistant layer (15) is made of high-strength carbon fibers.