CN218718179U

CN218718179U - Contact type sealing bearing structure

Info

Publication number: CN218718179U
Application number: CN202223178474.4U
Authority: CN
Inventors: 黄段
Original assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-24
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a contact sealed bearing structure, including inner circle, outer lane and ball part and sealing washer, the coaxial cover in outer lane is established on the inner circle, ball part sets up between inner circle and outer lane, the sealing washer is coaxial to be cup jointed on the tip of inner circle, the sealing washer includes skeleton and sealed sizing material, the section of skeleton is U type slice, and this sectional both ends are upper and lower distribution, sealed sizing material is fixed on the skeleton, forms the seal lip that contacts with the inner circle flange in skeleton lower extreme department. The utility model discloses a contact seal bearing structure, through the setting of U type skeleton, can realize that the contact between seal lip and the inner circle flange is soft contact to obtain higher lip contact volume under the same moment of torsion, and then improve sealed effect, improve deep groove ball bearing's sealing performance.

Description

Contact type sealing bearing structure

Technical Field

The utility model relates to a bearing structure, more specifically the utility model relates to a contact seals bearing structure that says so.

Background

The influence of the cleanliness of the bearing on the service life of the bearing is quite large, and the service life of different cleanliness bearings is different by times or even more than ten times. The higher the cleanliness of the bearing, the longer the life; however, with the light weight and cost reduction of automobiles, some protection accessories are cancelled, so that the service environment of the bearing becomes severe, and the bearing needs to be improved in order to enable the bearing to resist various dust and muddy water environments and ensure the low torque and high rotating speed performance of the bearing.

Therefore there is patent number 201720946329.6 among the prior art, the name is a novel bearing seal ring and has this bearing seal ring's utility model patent discloses a sealing washer structure, it discloses sealed lid body, and the sealing effect of bearing is realized to the mode that sets up main seal lip and vice seal lip on sealed lid body's inner circle wall, in the in-process that uses, sealed lid body is as the skeleton of whole seal structure, however sealed lid body is straight plate type structure, from this main seal lip and vice seal lip and inner circle flange between the contact be rigid contact, from this main seal lip and vice seal lip and inner circle flange between the lip contact surface be very big, sealed effect still remains to be promoted.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a lip contact surface is big, sealed effectual contact seal bearing structure.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a contact sealed bearing structure, includes inner circle, outer lane and ball part and sealing washer, the coaxial cover in outer lane is established on the inner circle, ball part sets up between inner circle and outer lane, the coaxial cup joint of sealing washer is on the tip of inner circle, its characterized in that: the sealing ring comprises a framework and sealing rubber materials, the section of the framework is in a U-shaped sheet shape, the two ends of the section are distributed up and down, the sealing rubber materials are fixed on the framework, and a sealing lip which is in contact with the inner ring flange is formed at the lower end of the framework.

As the utility model discloses a further improvement, the seal lip includes main seal lip and vice seal lip, main seal lip and vice seal lip are the interval setting each other, and lip limit butt to the inner circle flange on.

As a further improvement of the utility model, the main seal lip and the auxiliary seal lip are all obliquely arranged, and the oblique direction is the slope of the lip edge towards the outer side of the inner ring.

As a further improvement of the utility model, the butt of the lip limit interference of main seal lip and vice seal lip is on the inner circle flange.

As a further improvement, the length of the lower end of the framework is larger than the length of the upper end of the framework, and the sealing rubber material wraps the framework and is arranged at the upper end and the lower end.

The beneficial effects of the utility model, through setting the sealing washer to have skeleton and sealed sizing material combination, set the mode of U type to the skeleton simultaneously, can realize the contact lip softening between seal lip and the inner circle flange to obtain higher lip contact volume under the same moment of torsion, and then improve sealed effect, improve deep groove ball bearing's sealing performance.

Drawings

Fig. 1 is a schematic structural diagram of the contact seal bearing structure of the present invention.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1, a contact type sealed bearing structure of this embodiment, including inner circle 1, outer lane 2 and ball part 3 and sealing washer 4, the coaxial cover of outer lane 2 is established on inner circle 1, ball part 3 sets up between inner circle 1 and outer lane 2, sealing washer 4 is coaxial to be cup jointed on the tip of inner circle 1, sealing washer 4 includes skeleton 41 and sealing rubber material 42, the section of skeleton 41 is U type slice, and the both ends of this section distribute from top to bottom, sealing rubber material 42 is fixed on skeleton 41, forms the sealing lip 5 that contacts with inner circle 1 flange at skeleton 41 lower extreme department, and in the in-process of the operation of the bearing structure of this embodiment, skeleton 41 and sealing rubber material 42 are fixed together on the inner circle wall of outer lane 2, then realize sealing through the mode that sealing lip 5 contradicts each other with inner circle 1 flange, and owing to adopted skeleton 41 to be U type structure, alright utilize the deformability of U type structure to realize that sealing lip 5 supports the contact flexibility softening between 1 flange, consequently under the condition of same moment of torsion, obtain higher contact amount, and then improve the deep groove sealing performance, improve the sealing ball bearing.

As an improved specific embodiment, the seal lip 5 includes a main seal lip 51 and an auxiliary seal lip 52, the main seal lip 51 and the auxiliary seal lip 52 are arranged at an interval, and the lips abut against the flange of the inner ring 1, and by arranging the main seal lip 5 and the auxiliary seal lip 52, the secondary protection effect can be effectively realized, and the sealing performance of the bearing is further increased.

As a modified specific embodiment, the main seal lip 51 and the sub seal lip 52 are both inclined in such a manner that the lips are inclined toward the outer side of the inner ring 1, and the inclined structure is adopted, so that the external dust and muddy water can be guided to flow toward the outer side in an inclined manner, and the sealing performance can be further improved.

As an improved specific embodiment, the main seal lip 51 and the auxiliary seal lip 52 are in interference contact with each other at the retaining edge of the inner ring 1, and the main seal lip 51 and the auxiliary seal lip 52 can be extruded in an interference manner, so that the main seal lip 51 and the auxiliary seal lip 52 generate certain deformation, the lip contact amount is further increased, the sealing effect is further improved, the sealing performance of the deep groove ball bearing is improved, and meanwhile, the inner ring 1 does not need to be provided with a sealing groove.

As an improved specific embodiment, the length of the lower end of the framework 41 is greater than the length of the upper end of the framework 41, and the sealing rubber 42 is arranged to cover the upper end and the lower end of the framework 41, and by adopting the above structure, the way of the upper end and the lower end of the framework 41 is adopted, on one hand, the installation groove frame formed on the inner side wall of the outer ring 2 when the framework is fixed to the outer ring 2 can be reduced, and on the other hand, a sufficient connection area can be provided for connecting the main sealing lip 51 and the auxiliary sealing lip 52.

In summary, in the bearing structure of the present embodiment, the seal ring 4 is configured to be the U-shaped frame 41 and the sealing rubber, so that the contact between the seal lip 5 and the rib of the inner ring 1 is soft contact, and a higher lip contact amount is obtained under the same torque, thereby improving the sealing effect and the sealing performance of the deep groove ball bearing.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. The utility model provides a contact sealed bearing structure, includes inner circle (1), outer lane (2) and ball part (3) and sealing washer (4), the coaxial cover of outer lane (2) is established on inner circle (1), ball part (3) set up between inner circle (1) and outer lane (2), sealing washer (4) coaxial cup joint on the tip of inner circle (1), its characterized in that: the sealing ring (4) comprises a framework (41) and sealing rubber materials (42), the section of the framework (41) is in a U-shaped sheet shape, the two ends of the section are distributed up and down, the sealing rubber materials (42) are fixed on the framework (41), and sealing lips (5) which are in contact with the flanges of the inner ring (1) are formed at the lower end of the framework (41).

2. The contact seal bearing structure according to claim 1, wherein: the sealing lip (5) comprises a main sealing lip (51) and an auxiliary sealing lip (52), the main sealing lip (51) and the auxiliary sealing lip (52) are arranged at intervals, and the lips are abutted to the blocking edge of the inner ring (1).

3. The contact seal bearing structure according to claim 2, wherein: the main sealing lip (51) and the auxiliary sealing lip (52) are both obliquely arranged, and the oblique direction is that the lips are inclined towards the outer side of the inner ring (1).

4. The contact seal bearing structure according to claim 3, wherein: the main sealing lip (51) and the auxiliary sealing lip (52) are in interference contact with the flange of the inner ring (1).

5. The contact seal bearing structure according to claim 4, wherein: the length of the lower end of the framework (41) is larger than that of the upper end of the framework (41), and the sealing rubber material (42) wraps the upper end and the lower end of the framework (41).