CN217682865U

CN217682865U - Tapered roller bearing with end cover type sealing structure

Info

Publication number: CN217682865U
Application number: CN202221991176.4U
Authority: CN
Inventors: 任荣富
Original assignee: Xinchang Haina Renhe Bearing Co ltd
Current assignee: Xinchang Haina Renhe Bearing Co ltd
Priority date: 2022-07-31
Filing date: 2022-07-31
Publication date: 2022-10-28
Anticipated expiration: 2032-07-31

Abstract

A tapered roller bearing with an end cover type sealing structure belongs to the technical field of tapered roller bearings. The bearing comprises an inner ring assembly, a bearing outer ring and a retainer provided with a tapered roller, wherein the bearing outer ring is sleeved on the outer side of the inner ring assembly, and the retainer is arranged between the inner ring assembly and the bearing outer ring; the inner ring assembly comprises a bearing inner ring, the bearing inner ring comprises a large end and a small end, a sealing end cover is sleeved on the large end side of the bearing inner ring, and an elastic sealing element is attached to the outer portion of the sealing end cover along with the shape. The utility model discloses a set up the end cover, the sealing member that the cooperation was set up can carry out end face seal to the big distolateral and bearing inner race of tapered roller bearing inner race, avoids inside grease and external contact, prevents that grease from receiving external high temperature and reducing, can prevent simultaneously that the dust from getting into and causing the influence to the grease; the sealing end cover and the bearing inner ring are sleeved and assembled in an interference fit mode, the assembling structure is convenient to disassemble and assemble, and the operation is simple and rapid.

Description

Tapered roller bearing with end cover type sealing structure

Technical Field

The utility model belongs to the technical field of tapered roller bearing, concretely relates to take tapered roller bearing of end cap formula seal structure.

Background

Tapered roller bearing wide application is in hydro-cylinder piston motion, and inside being full of the grease of hydro-cylinder piston motion, this grease generally the anti-pollution nature high, and high temperature resistant, consequently need design a tapered roller bearing with seal structure, keeps apart the inboard space of bearing in the hydro-cylinder piston motion with external environment, plays thermal-insulated and prevents the effect that the dust got into, keeps away that the grease in the inboard space receives high temperature and reduces or because the pollution of dust influences the performance.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the utility model aims to provide a good, the stable and swift tapered roller bearing of taking end cap formula seal structure of sealing performance of leakproofness.

The utility model provides a following technical scheme:

a tapered roller bearing with an end cover type sealing structure comprises an inner ring assembly, a bearing outer ring and a retainer provided with a tapered roller, wherein the bearing outer ring is sleeved on the outer side of the inner ring assembly, and the retainer is arranged between the inner ring assembly and the bearing outer ring; the inner ring assembly comprises a bearing inner ring, the bearing inner ring comprises a large end and a small end, a sealing end cover is sleeved on the large end side of the bearing inner ring, an elastic sealing element is attached to the outer portion of the sealing end cover along with the shape, and the lower portion of the sealing element is tightly attached to the upper end face of the bearing outer ring.

Furthermore, the main body of the sealing end cover is of an annular plate-shaped structure, an inner folding edge and an outer folding edge are arranged on the main body, and the inner folding edge and the outer folding edge are both of annular thin-wall structures.

Furthermore, the inner diameter of the main body is equal to the outer diameter of the large end of the bearing inner ring, and the outer diameter of the main body is equal to the diameter of the inner wall of the upper end part of the bearing outer ring.

Furthermore, the lower end face of the main body is arranged close to the upper end face of the retainer.

Furthermore, the sealing element comprises a main body attaching section, an inner folded edge attaching section and an outer folded edge attaching section which are attached to the sealing end cover along with the shape, and a first sealing section is arranged on the outer folded edge attaching section.

Furthermore, a second sealing section extending outwards is arranged at the end part of the lower end of the first sealing section.

Through adopting above-mentioned technique, compare with prior art, the beneficial effects of the utility model are as follows:

1) The utility model discloses a set up the end cover, the sealing member that the cooperation was set up can carry out end face seal to the big distolateral and bearing inner race of tapered roller bearing inner race, avoids inside grease and external contact, prevents that grease from receiving external high temperature and reducing, can prevent simultaneously that the dust from getting into and causing the influence to the grease; the sealing end cover and the bearing inner ring are sleeved and assembled in an interference fit mode, the assembling structure is convenient to assemble and disassemble, and the operation is simple and rapid;

2) In the utility model, the sealing mechanism composed of the sealing end cover and the elastic sealing element is assembled with the bearing outer ring and the bearing inner ring respectively in the interference fit and extrusion fit mode, and the sealing mechanism is used for sealing between the bearing inner ring and the retainer and between the bearing inner ring and the bearing outer ring;

3) In the utility model, the stability of the sealing between the bearing inner ring and the retainer can be further ensured through the arranged inner folding edge, the outer folding edge and the corresponding inner folding edge attaching section and the outer folding edge attaching section;

4) The utility model discloses in, through the first seal section and the second seal section that set up, sealed area of contact between increase sealing member and the bearing inner race can further guarantee sealed stability between bearing inner race and the bearing inner race.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention in partial section;

FIG. 3 is a schematic structural view of the sealing end of the present invention;

fig. 4 is a schematic structural diagram of the sealing member of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the drawings and the embodiments of the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

Referring to fig. 1-4, a tapered roller bearing with an end cap type sealing structure includes an inner ring assembly 1, a bearing outer ring 2 and a retainer 3; the inner ring assembly 1 comprises a bearing inner ring 4, a sealing end cover 5 and a sealing element 6, and the sealing element 6 is attached to the outside of the sealing end cover 5 and combined to form a sealing structure; the bearing outer ring 2 is sleeved outside the bearing inner ring 4, an installation space is reserved between the bearing outer ring 2 and the bearing inner ring 4, and the retainer 3 is installed on the bearing inner ring 4 and is positioned in the installation space; and the sealing structures are used for sealing between the bearing outer ring 2 and the bearing inner ring 4 and between the bearing inner ring 4 and the retainer 3.

Specifically, the bearing inner ring 4 comprises a large end and a small end, and the sealing end cover 5 is sleeved on the large end side; the end cover 5 comprises a main body 501 which is an annular plate structure, wherein the edges of the inner side and the outer side of the main body are respectively provided with an inner folded edge 502 and an outer folded edge 503 which extend downwards along the vertical direction, and the inner folded edge and the outer folded edge are both annular thin-wall structures. The inner diameter of the main body 501 is equal to the outer diameter of the large end of the bearing inner ring 4, and the outer diameter of the main body 501 is equal to the inner wall diameter of the upper end of the bearing outer ring 2. Therefore, when the sealing element 6 is attached to the sealing end cover 5 in a following manner, the sealing structure formed by the sealing element can be in close contact with the large end of the bearing inner ring 4 and the upper end of the bearing outer ring 2 through interference fit and extrusion fit.

Specifically, the sealing member 6 includes a main body attaching section 601, an inner folded edge attaching section 602, and an outer folded edge attaching section 603; the main body attaching section 601, the inner folded edge attaching section 602 and the outer folded edge attaching section 603 are respectively attached to the main body 501, the inner folded edge 502 and the outer folded edge 503 of the sealing end cover 5 correspondingly; the lower part of outer hem subsides section 603 extends and forms first seal section 604, and the tip of first seal section 604 lower extreme extends to the outside and forms second seal section 605, and as the second grade between sealing member 6 and the bearing inner race 2 inside wall sealed and further increased the laminating area between the two, improved sealed stability.

When the tapered roller bearing of the embodiment is assembled and used, the concrete process is as follows:

firstly, assembling a group of tapered rollers, a retainer 3 and a bearing inner ring 4, then tightly fitting and sleeving a sealing end cover 5 attached with a sealing element 6 on the large end side of the bearing inner ring 4, ensuring that the part, positioned between an inner folded edge 502 and an outer folded edge 503, on the bottom end face of the sealing end cover 5 is tightly attached to the upper end face of the retainer 3, and finishing the assembly of the inner ring component 1; then, the bearing outer ring 2 is sleeved on the outer side of the assembled inner ring assembly 1, and the second sealing section 605 is tightly attached to the upper end face of the bearing outer ring 2.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a take tapered roller bearing of end cap formula seal structure which characterized in that: the tapered roller bearing comprises an inner ring assembly, a bearing outer ring and a retainer provided with a tapered roller, wherein the bearing outer ring is sleeved on the outer side of the inner ring assembly, and the retainer is arranged between the inner ring assembly and the bearing outer ring; the inner ring assembly comprises a bearing inner ring, the bearing inner ring comprises a large end and a small end, a sealing end cover is sleeved on the large end side of the bearing inner ring, an elastic sealing element is attached to the outer portion of the sealing end cover along with the shape, and the lower portion of the sealing element is tightly attached to the upper end face of the bearing outer ring.

2. The tapered roller bearing with the end cover type sealing structure as claimed in claim 1, wherein the main body of the sealing end cover is an annular plate-shaped structure, and an inner folded edge and an outer folded edge are provided on the main body, and both the inner folded edge and the outer folded edge are annular thin-walled structures.

3. The tapered roller bearing with the end cover type sealing structure as claimed in claim 2, wherein the inner diameter of the main body is equal to the outer diameter of the large end of the bearing inner ring, and the outer diameter of the main body is equal to the diameter of the inner wall of the upper end of the bearing outer ring.

4. The tapered roller bearing with an end-cap seal structure according to claim 3, wherein the lower end face of the main body is disposed closely to the upper end face of the retainer.

5. The tapered roller bearing with the end cover type sealing structure according to claim 4, wherein the sealing element comprises a main body attaching section, an inner folded edge attaching section and an outer folded edge attaching section which are attached to the sealing end cover in a shape-following manner, and the outer folded edge attaching section is provided with a first sealing section.

6. The tapered roller bearing with an end-cap seal structure according to claim 5, wherein the end of the lower end of the first seal segment is provided with a second seal segment extending outward.