CN217055960U

CN217055960U - Long service life's wheel hub bearing

Info

Publication number: CN217055960U
Application number: CN202220770781.2U
Authority: CN
Inventors: 李雪芬; 陈建辉
Original assignee: Individual
Current assignee: Taizhou Qingwen Machinery Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-26
Anticipated expiration: 2032-04-06

Abstract

The utility model relates to a wheel hub bearing technical field discloses a long service life's wheel hub bearing, including bearing inner race and bearing inner race, bearing inner race's inner wall a week is located even fixedly connected with multi-disc impeller blade between the holder of both sides, the contained angle is 45 between impeller blade and bearing inner race's the axial direction line, the inside a week of bearing inner race lateral wall evenly is provided with four first lubricating oil chamber ways, just first lubricating oil chamber way all is linked together with the clearance between bearing inner race, the bearing inner race. The utility model discloses in, the impeller blade of follow-up promotes lubricating oil to clearance one side to the opposite side from the clearance flows in the clearance once more, thereby relies on the flow of lubricating oil, can effectively reduce the wearing and tearing between rolling element and bearing inner race, the bearing inner race, and the lubricating oil that flows has improved lubricating efficiency, thereby has effectively prolonged the life of this wheel hub bearing.

Description

Long service life's wheel hub bearing

Technical Field

The utility model relates to a wheel hub bearing technical field especially relates to a long service life's wheel hub bearing.

Background

The hub bearing mainly has the functions of bearing and providing accurate guide for the rotation of a hub, bears axial load and radial load, and is a very important part, the traditional bearing for the automobile wheel is formed by combining two sets of tapered roller bearings or ball bearings, the installation, oil coating, sealing and clearance adjustment of the bearing are all carried out on an automobile production line, a hub bearing unit is developed on the basis of a standard angular contact ball bearing and a tapered roller bearing, the two sets of bearings are integrated, and the hub bearing unit has the advantages of good assembly performance, capability of omitting clearance adjustment, light weight, compact structure, large load capacity, free maintenance and the like, is widely applied to cars, and has the trend of gradually expanding application in trucks.

Chinese patent publication No. CN205639283U discloses a hub bearing, which includes an outer ring, a flange plate sleeved in the outer ring, and an inner ring sleeved between the outer ring and the flange plate, wherein a middle blocking piece is disposed between the outer ring and the inner ring, the outer ring presses the inner ring against the flange plate through the middle blocking piece, and the hub bearing presses the inner ring against the flange plate through the middle blocking piece disposed between the outer ring and the inner ring, so that in the process of assembling the hub bearing, the middle blocking piece is sleeved outside the inner ring, thereby well avoiding the phenomenon that the inner ring of the bearing falls off, and making the assembly more convenient, after the hub bearing is assembled, the outer ring can apply an acting force to the middle blocking piece, so that the middle blocking piece presses the inner ring against the flange plate, and effectively preventing the inner ring from falling off in the using process, thereby being beneficial to improving the usability of the hub bearing, and being beneficial to prolonging the service life, but the patent still has a sealing structure disposed between the double flanges, the fluidity of lubricating oil in the hub bearing is reduced, so that the abrasion between the rolling body and the inner ring and the outer ring of the bearing is intensified, and the service life of the bearing is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the wheel hub bearing who provides a long service life.

In order to realize the purpose, the utility model adopts the following technical scheme: a hub bearing with long service life comprises a bearing inner ring and a bearing outer ring, wherein a second flange is arranged outside the bearing outer ring, the bearing outer ring is sleeved outside the bearing inner ring, a gap is formed between the bearing inner ring and the bearing outer ring, retainers are arranged on two sides of the gap, a plurality of rolling elements are uniformly arranged on one circle inside the retainers, a plurality of impeller blades are uniformly and fixedly connected between the retainers on two sides of the circumference of the inner wall of the bearing outer ring, an included angle between the impeller blades and the axial central line of the bearing outer ring is 45 degrees, four first lubricating oil cavity channels are uniformly arranged on one circle inside the side wall of the bearing inner ring, the first lubricating oil cavity channels are communicated with the gap between the bearing inner ring and the bearing outer ring, a first flange is arranged at one end of the bearing inner ring, and the other end of the bearing inner ring is connected with a sealing end cover through bolts, four second lubricating oil channels are uniformly arranged on the periphery of the inner portion of the side wall of the sealing end cover, the second lubricating oil channels are communicated with gaps between the bearing inner ring and the bearing outer ring, and the second lubricating oil channels are correspondingly communicated with the first lubricating oil channels.

As a further description of the above technical solution:

a first shaft mounting cavity is formed in the inner center of the sealing end cover, and a second shaft mounting cavity is formed in the inner center of the bearing inner ring.

As a further description of the above technical solution:

the first shaft installation cavity is communicated with the second shaft installation cavity, and the inner diameters of the first shaft installation cavity and the second shaft installation cavity are consistent.

As a further description of the above technical solution:

one side that first flange is close to the bearing inner race is provided with the annular, just the bearing inner race is close to the one end of first flange and stretches into in this annular, the first sealing rubber ring of inner wall fixedly connected with of this annular.

As a further description of the above technical solution:

the inner ring of the first sealing rubber ring is provided with a first adaptive sealing rubber ring, and the inner ring of the first adaptive sealing rubber ring is fixedly connected to the outer part of the bearing outer ring.

As a further description of the above technical solution:

one side that the end cap is close to the bearing inner race is provided with the annular, just the one end that the bearing inner race is close to the end cap stretches into in this annular, and the inner wall fixedly connected with second packing rubber ring of this annular.

As a further description of the above technical solution:

and the inner ring of the second sealing rubber ring is provided with a second adaptive sealing rubber ring, and the inner ring of the second adaptive sealing rubber ring is fixedly connected to the outer part of the bearing outer ring.

The utility model discloses following beneficial effect has:

the utility model discloses in, when the bearing inner race rotates for the bearing inner race, can rotate together with the impeller blade is synchronous, thereby utilize the effort can promote lubricating oil in the clearance to clearance one side, and the lubricating oil that is promoted will say through first lubricating oil chamber, the second lubricating oil chamber is said and is flowed out and flow into the clearance once more from the opposite side in clearance, thereby rely on the flow of lubricating oil, can effectively reduce wearing and tearing between rolling element and the bearing inner race, and the lubricating oil that flows has improved lubricated efficiency, thereby effectively prolonged the life of this wheel hub bearing.

Drawings

Fig. 1 is an internal schematic view of a wheel hub bearing with a long service life provided by the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view at B in FIG. 1;

fig. 4 is a schematic view of an impeller blade of a hub bearing with a long service life according to the present invention;

fig. 5 is a schematic view of an included angle between an impeller blade and a bearing outer ring.

Illustration of the drawings:

1. a bearing inner race; 2. a first flange; 3. a first sealing rubber ring; 4. an outer race of the bearing; 5. a first adaptive sealing rubber ring; 6. a second flange; 7. an impeller blade; 8. a holder; 9. a rolling body; 10. sealing the end cap; 11. a first shaft mounting cavity; 12. a second sealing rubber ring; 13. a second adaptive sealing rubber ring; 14. a first lubricant channel; 15. a second lubricant channel; 16. a bolt; 17. the second shaft is provided with a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a hub bearing with long service life comprises a bearing inner ring 1 and a bearing outer ring 4, wherein a second flange 6 is arranged outside the bearing outer ring 4, the bearing outer ring 4 is sleeved outside the bearing inner ring 1, a gap is formed between the bearing inner ring 1 and the bearing outer ring 4, two sides of the gap are respectively provided with a retainer 8, a plurality of rolling bodies 9 are uniformly arranged on the periphery inside the retainer 8, a plurality of impeller blades 7 are uniformly and fixedly connected between the retainers 8 on the two sides of the periphery of the inner wall of the bearing outer ring 4, and an included angle of 45 degrees is formed between each impeller blade 7 and the axial central line of the bearing outer ring 4 The gap between the bearing outer ring 4 is communicated, one end of the bearing inner ring 1 is provided with a first flange 2, the other end of the bearing inner ring 1 is connected with a sealing end cover 10 through a bolt 16, four second lubricating oil channels 15 are uniformly arranged on a circle inside the side wall of the sealing end cover 10, the second lubricating oil channels 15 are communicated with the gap between the bearing inner ring 1 and the bearing outer ring 4, the second lubricating oil channels 15 are correspondingly communicated with the first lubricating oil channels 14, when the bearing outer ring 4 rotates relative to the bearing inner ring 1, the second lubricating oil channels can synchronously rotate together with the impeller blades 7, and further, because the included angle between the axial center lines of the impeller blades 7 and the bearing outer ring 4 is 45 degrees, the lubricating oil in the gap between the bearing inner ring 1 and the bearing outer ring 4 can be pushed to one side of the gap by using acting force, and the pushed lubricating oil flows out through the first lubricating oil channels 14 and the second lubricating oil channels 15 and flows into the gap from the other side of the gap again, therefore, the abrasion between the rolling body 9 and the bearing inner ring 1 and between the rolling body and the bearing outer ring 4 can be effectively reduced by depending on the flowing of the lubricating oil, the lubricating efficiency is improved by the flowing lubricating oil, and the service life of the hub bearing is effectively prolonged.

The inner center of the sealing end cover 10 is provided with a first shaft installation cavity 11, the inner center of the bearing inner ring 1 is provided with a second shaft installation cavity 17, the first shaft installation cavity 11 is communicated with the second shaft installation cavity 17, the inner diameters of the first shaft installation cavity 11 and the second shaft installation cavity 17 are consistent, the hub bearing can be installed on a structural shaft through a first flange 2, a second flange 6, the first shaft installation cavity 11 and the second shaft installation cavity 17, one side, close to the bearing outer ring 4, of the first flange 2 is provided with a ring groove, one end, close to the first flange 2, of the bearing outer ring 4 extends into the ring groove, the inner wall of the ring groove is fixedly connected with a first sealing rubber ring 3, the inner ring of the first sealing rubber ring 3 is provided with a first adaptive sealing rubber ring 5, the inner ring of the first adaptive sealing rubber ring 5 is fixedly connected to the outer part of the bearing outer ring 4, one side, close to the bearing outer ring 4, of the sealing end cover 10 is provided with a ring groove, and one end, close to the sealing end, of the bearing outer ring 4 extends into the ring 4, the inner wall fixedly connected with second rubber seal 12 of this annular, the inner circle of second rubber seal 12 is provided with the sealed rubber seal 13 of second adaptation, and the inner circle fixed connection of the sealed rubber seal 13 of second adaptation is in the outside of bearing inner race 4, and above-mentioned structure is used as the clearance between sealed bearing inner race 1, the bearing inner race 4, avoids lubricating oil to flow out, guarantees the smooth and easy nature of use.

The working principle is as follows: the hub bearing can be mounted on a structural shaft through the first flange 2, the second flange 6, the first shaft mounting cavity 11 and the second shaft mounting cavity 17, when the bearing outer ring 4 rotates relative to the bearing inner ring 1, can synchronously rotate together with the impeller blades 7, and further because the included angle between the impeller blades 7 and the axial center line of the bearing outer ring 4 is 45 degrees, therefore, the lubricating oil in the gap between the bearing inner ring 1 and the bearing outer ring 4 can be pushed to one side of the gap by acting force, and the pushed lubricating oil will flow out through the first lubricating oil channel 14 and the second lubricating oil channel 15 and flow into the gap again from the other side of the gap, thereby effectively reducing the abrasion among the rolling body 9, the bearing inner ring 1 and the bearing outer ring 4 by depending on the flowing of the lubricating oil, and the flowing lubricating oil improves the lubricating efficiency, thereby effectively prolonging the service life of the hub bearing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a long service life's wheel hub bearing, includes bearing inner race (1) and bearing inner race (4), its characterized in that: the outer portion of the bearing outer ring (4) is provided with a second flange (6), the inner portion of the bearing outer ring (4) is sleeved on the outer portion of the bearing inner ring (1), a gap is formed between the bearing inner ring (1) and the bearing outer ring (4), both sides of the gap are provided with retainers (8), a plurality of rolling bodies (9) are uniformly arranged on one circle of the inner portion of each retainer (8), a plurality of impeller blades (7) are uniformly and fixedly connected between the retainers (8) on both sides of the inner wall of the bearing outer ring (4) on one circle, an included angle between each impeller blade (7) and the axial center line of the bearing outer ring (4) is 45 degrees, four first lubricating oil cavities (14) are uniformly arranged on one circle of the inner portion of the side wall of the bearing inner ring (1), and the first lubricating oil cavities (14) are communicated with the gaps between the bearing inner ring (1) and the bearing outer ring (4), one end of the bearing inner ring (1) is provided with a first flange (2), the other end of the bearing inner ring (1) is connected with a sealing end cover (10) through a bolt (16), four second lubricating oil cavity channels (15) are uniformly arranged on one circle of the inner side wall of the sealing end cover (10), the second lubricating oil cavity channels (15) are communicated with gaps between the bearing inner ring (1) and the bearing outer ring (4), and the second lubricating oil cavity channels (15) are correspondingly communicated with the first lubricating oil cavity channels (14).

2. A long-life hub bearing according to claim 1, characterized in that: a first shaft mounting cavity (11) is formed in the center of the inner portion of the sealing end cover (10), and a second shaft mounting cavity (17) is formed in the center of the inner portion of the bearing inner ring (1).

3. A long-life hub bearing according to claim 2, characterized in that: the first shaft installation cavity (11) is communicated with the second shaft installation cavity (17) and the inner diameters of the first shaft installation cavity and the second shaft installation cavity are consistent.

4. A long-life hub bearing according to claim 1, characterized in that: one side that first flange (2) are close to bearing inner race (4) is provided with the annular, just in bearing inner race (4) are close to the one end of first flange (2) and stretch into this annular, the inner wall fixedly connected with first sealed rubber ring (3) of this annular.

5. A long-life hub bearing according to claim 4, characterized in that: the inner ring of the first sealing rubber ring (3) is provided with a first adaptive sealing rubber ring (5), and the inner ring of the first adaptive sealing rubber ring (5) is fixedly connected to the outer part of the bearing outer ring (4).

6. A long-life hub bearing according to claim 1, characterized in that: one side that end cover (10) is close to bearing inner race (4) is provided with the annular, just in one end that end cover (10) is close to end cover (4) stretches into this annular, the inner wall fixedly connected with second sealing rubber ring (12) of this annular.

7. A long-life hub bearing according to claim 6, characterized in that: and a second adaptive sealing rubber ring (13) is arranged on the inner ring of the second sealing rubber ring (12), and the inner ring of the second adaptive sealing rubber ring (13) is fixedly connected to the outer part of the bearing outer ring (4).