CN217234121U

CN217234121U - Hub bearing unit with multi-lip sealing ring

Info

Publication number: CN217234121U
Application number: CN202221058100.6U
Authority: CN
Inventors: 丁红; 卜久贵; 吴佳兴
Original assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Current assignee: NANJING GUANSHENG AUTOMOBILE PARTS CO Ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-19
Anticipated expiration: 2032-05-06

Abstract

A hub bearing unit with a multi-lip seal ring. The main poor problem of sealed effect that exists of solving present wheel hub bearing unit. The method is characterized in that: a first lip (51), a second lip (52), a third lip (53), a fourth lip (54) and a fifth lip (55) are arranged on the sealing framework; the flange plate comprises a rod part (11) and a disc part (12); the fourth lip with disk portion clearance fit, the fifth lip with form between the skeleton and be used for outer lane one end to stretch into seal groove (551), the second lip with the third lip with disk portion seal fit, the first lip with pole portion seal fit. The utility model provides a wheel hub bearing unit with many lips sealing washer realizes mainly sealed (contacting with dish portion) through second lip and third lip, and first lip has guaranteed sealed effect for supplementary sealed (contacting with pole portion) when reducing moment.

Description

Hub bearing unit with multi-lip sealing ring

Technical Field

The utility model relates to a hub bearing unit field, concretely relates to hub bearing unit with many lips sealing washer.

Background

With the rapid development of the automation level of the automobile accessory industry, the varieties and the use environments of the wheel hub bearings are more and more diversified, manufacturers matched with various main machines carry out research and development improvement on new products and new processes without losing the power, and the requirements on the precision and the performance of the products are continuously improved.

The hub bearing unit seal comprises a static seal and a dynamic seal, and factors influencing the friction torque come from the dynamic seal part.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a wheel hub bearing unit with many lips sealing washer mainly solves present wheel hub bearing unit and has the not good problem of sealed effect.

The utility model adopts the technical proposal that:

a hub bearing unit with a multi-lip sealing ring comprises a flange plate, wherein the flange plate comprises a shaft neck, an outer ring is sleeved outside the shaft neck, and the hub bearing unit further comprises a sealing framework arranged between the shaft neck and the outer ring, and a first lip, a second lip, a third lip, a fourth lip and a fifth lip are arranged on the sealing framework; the flange plate comprises a rod part and a disc part;

the fourth lip with dish portion clearance fit, the fifth lip with form between the skeleton and be used for the seal groove that outer lane one end stretched into, the second lip with the third lip with dish portion seal fit, the first lip with pole portion seal fit.

The outer wall of two sides of the sealing cover is attached to the inner wall of two sides of the outer ring.

The cover is made of metal.

The second lip is disposed parallel to the third lip.

The included angle between the second lip and the first lip is less than 180 degrees.

And a rolling part is also arranged between the outer ring and the rod part.

The rolling member is a rolling ball.

The utility model has the advantages that: the utility model provides a wheel hub bearing unit with many lips sealing washer realizes mainly sealed (contacting with dish portion) through second lip and third lip, and first lip has guaranteed sealed effect for supplementary sealed (contacting with pole portion) when reducing moment.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: as shown in the figures, 1, a hub bearing unit with a multi-lip seal ring comprises a flange plate 1, wherein the flange plate comprises a shaft neck 2, an outer ring 3 is sleeved outside the shaft neck, and the hub bearing unit further comprises a seal framework 4 arranged between the shaft neck and the outer ring, and a first lip 51, a second lip 52, a third lip 53, a fourth lip 54 and a fifth lip 55 are arranged on the seal framework; the flange plate comprises a rod part 11 and a disc part 12; the fourth lip with disc portion clearance fit, the fifth lip with form between the skeleton and be used for outer lane one end to stretch into seal groove 551, the second lip with the third lip with disc portion seal fit, the first lip with pole portion seal fit. After the hub unit is sleeved, the fourth lip and the fifth lip are in static sealing, the fourth lip is in small clearance fit with the disc portion, solid particles are prevented from entering the inside of a product, direct impact of muddy water on a bearing position is reduced, the fifth lip is in interference fit with an outer ring, water is prevented from penetrating into the bearing, and sealing performance is enhanced. The third lip is dynamic seal, designs main sealing function for the axial seal of second lip and third lip, reduces friction torque when improving sealing performance, and the radial realization of first lip and pole portion is sealed, for supplementary seal.

The utility model discloses in, as shown in the figure, still include closing cap 6, closing cap both sides outer wall with the both sides inner wall of outer lane is laminated mutually. The other end is sealed, and the sealing effect is better.

In the present invention, as shown in the figure, the cover is made of metal.

In the present invention, as shown in the figure, the second lip and the third lip are disposed in parallel. The sealing effect is increased.

In the present invention, as shown in the figure, the included angle between the second lip and the first lip is less than 180 °. The sealing effect is increased.

In the present invention, as shown in the figure, a rolling member 7 is further provided between the outer ring and the rod portion. A small inner ring is omitted, and the cost is reduced.

In the present invention, as shown in the figure, the rolling member is a rolling ball.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a wheel hub bearing unit with many lips sealing washer, includes ring flange (1), the ring flange includes axle journal (2), the axle journal overcoat is equipped with outer lane (3), still including locating the axle journal with sealed skeleton (4) between the outer lane, its characterized in that: a first lip (51), a second lip (52), a third lip (53), a fourth lip (54) and a fifth lip (55) are arranged on the sealing framework; the flange plate comprises a rod part (11) and a disc part (12);

the fourth lip with dish portion clearance fit, the fifth lip with form between the skeleton and be used for outer lane one end to stretch into seal groove (551), the second lip with the third lip with dish portion seal fit, first lip with pole portion seal fit.

2. A hub-bearing unit with a multi-lip seal according to claim 1, characterized in that: the sealing device is characterized by further comprising a sealing cover (6), wherein the outer walls of two sides of the sealing cover are attached to the inner walls of two sides of the outer ring.

3. A hub-bearing unit with a multi-lip seal according to claim 2, characterized in that: the cover is made of metal.

4. A hub-bearing unit with a multi-lip seal according to claim 3, characterized in that: the second lip is disposed parallel to the third lip.

5. A hub-bearing unit with a multi-lip seal according to claim 4, characterized in that: the included angle between the second lip and the first lip is less than 180 degrees.

6. A hub-bearing unit with a multi-lip seal according to claim 5, characterized in that: and a rolling part (7) is also arranged between the outer ring and the rod part.

7. A hub-bearing unit with a multi-lip seal according to claim 6, characterized in that: the rolling member is a rolling ball.