CN220151734U

CN220151734U - Thrust bearing seat

Info

Publication number: CN220151734U
Application number: CN202321440286.6U
Authority: CN
Inventors: 孙瑞宏
Original assignee: NINGBO GOOT BEARING CO Ltd
Current assignee: NINGBO GOOT BEARING CO Ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-08
Anticipated expiration: 2033-06-07

Abstract

The utility model relates to the technical field of bearing seats, and discloses a thrust bearing seat, which comprises: the lower base is used for supporting and fixing the thrust bearing, and the upper end cover covers the thrust bearing shaft sheet, the lower base and the upper end cover are mutually embedded in a clearance fit manner, and a sealing ring is arranged on the side wall of the embedded part to prevent dust from entering from a clearance between the lower base and the upper end cover; the upper end cover and the lower base are provided with through holes for the rotating shaft to pass through, wherein the inner walls of the through holes of the lower base are also provided with sealing rings to prevent dust from entering from gaps between the bottom plate and the rotating shaft. The thrust bearing seat provided by the utility model has the advantages of simple structure, convenience in assembly and disassembly, capability of effectively preventing dust and dirt from entering the bearing, good dustproof sealing effect, capability of greatly reducing friction and abrasion of the thrust bearing by being matched with the use of lubricating oil, and prolonged service life.

Description

Thrust bearing seat

Technical Field

The utility model relates to the technical field of bearing seats, in particular to a thrust bearing seat.

Background

Thrust bearings, also known as thrust bearings, are bearings that are designed to bear axial loads and generally consist of two or more thrust washers and a plurality of rolling elements. The thrust washer is divided into a shaft piece and a bottom piece, wherein the shaft piece is also called a tightening ring, is excessively matched with the rotating shaft and is leaned against the plane of the rotating part; the bottom plate is also called loose ring, is in clearance fit with the shaft and fixed on the static plane, and the retainer with the rolling bodies is placed between the shaft sheet and the seat sheet and used for reducing friction force between two mutually rotating planes, and the relative rotation between the shaft sheet and the seat sheet can be realized by providing axial rotation acting force on one part of the shaft sheet.

Because the negative plate is clearance fit with the rotating shaft, and a larger clearance is reserved between the shaft sheet and the seat sheet for conveniently installing the retainer, when the thrust bearing runs in the open air, close to the ground, more dust and other harsher working environments, foreign matters with small particles such as external dust and the like easily enter the clearance between the retainer and the shaft sheet or the seat sheet and adhere to the outer surface of the rolling body, thereby influencing the rotation of the rolling body, increasing the abrasion and influencing the service life of the thrust bearing.

Disclosure of Invention

The utility model aims to provide a thrust bearing seat which is simple in structure, convenient to install and good in dustproof property, and aims to overcome the defects in the prior art.

The utility model is realized in the following way:

the utility model provides a thrust bearing mount comprising: the lower base is used for supporting and fixing the thrust bearing, and the upper end cover covers the thrust bearing shaft sheet, the lower base and the upper end cover are mutually embedded in a clearance fit manner, and a sealing ring is arranged on the side wall of the embedded part to prevent dust from entering from a clearance between the lower base and the upper end cover; the upper end cover and the lower base are provided with through holes for the rotating shaft to pass through, wherein the inner walls of the through holes of the lower base are also provided with sealing rings to prevent dust from entering from gaps between the bottom plate and the rotating shaft.

Further, the top of the upper end cover is also provided with a mounting groove with the size matched with the shaft shoulder of the rotating shaft.

Further, a damping washer with a buffering function is arranged in the mounting groove.

Further, the side surface of the lower base is provided with an oil injection pipe communicated with the cavity inside the thrust bearing.

Further, the height of the oil outlet of the oil filling pipe is the same as the height of the gap between the retainer and the shaft sheet.

Further, a fixing plate is arranged on the lower base, and a fixing hole is formed in the fixing plate so as to conveniently fix the bearing seat on the static surface.

Further, a reinforcing rib is further arranged between the fixing plate and the lower base.

Further, the sealing ring is a rotary shaft lip-shaped sealing ring.

Further, the thrust bearing is any one of a thrust ball bearing and a thrust roller bearing.

The utility model has the beneficial effects that:

the thrust bearing seat provided by the utility model has the advantages of simple structure, convenience in assembly and disassembly, capability of effectively preventing dust and dirt from entering the bearing, good dustproof sealing effect, capability of greatly reducing friction and abrasion of the thrust bearing by being matched with the use of lubricating oil, and prolonged service life.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following discussion will discuss the embodiments or the drawings required in the description of the prior art, and it is obvious that the technical solutions described in connection with the drawings are only some embodiments of the present utility model, and that other embodiments and drawings thereof can be obtained according to the embodiments shown in the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an overall structure of a thrust bearing base according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a thrust bearing housing provided by an embodiment of the present utility model;

FIG. 3 is a schematic view of an upper end cap of a thrust bearing base according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a lower base in a thrust bearing base according to an embodiment of the present utility model.

In the figure: the device comprises a 1-upper end cover, a 101-boss, a 2-lower base, a 201-groove, a 202-fixing plate, 203-fixing holes, 204-reinforcing ribs, 205-sealing grooves, 206-oil injection pipes, 3-thrust bearings, 301-shaft sheets, 302-bottom sheets, 303-rolling bodies, 304-retainers, 4-sealing rings, 5-damping washers, 6-main shafts and 601-shaft shoulders.

Detailed Description

The following description of the embodiments of the present utility model will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person of ordinary skill in the art without the need for inventive faculty, are within the scope of the utility model, based on the embodiments described in the present utility model.

As shown in fig. 1 to 4, the embodiment of the present utility model provides a thrust bearing seat, which includes a lower base 2 and an upper end cover 1 that are matched with each other in size with a thrust bearing 3, wherein the thrust bearing 3 is disposed in a receiving chamber formed by joining the lower base 2 and the upper end cover 1 together, and the thrust bearing 3 may be either a thrust ball bearing or a thrust roller bearing; the end faces of the upper end cover 1 and the lower base 2 are respectively provided with a through hole for a rotating shaft to pass through, wherein the upper end cover 1 covers a shaft sheet 301 of the thrust bearing 3, the lower base 2 is used for supporting and fixing a bottom sheet 302 of the thrust bearing 3, the lower base 2 is provided with a fixing plate 202, the fixing plate 202 is provided with a fixing hole 203, the lower base 2 can be fixed on a static surface through bolts, and a reinforcing rib 204 is further arranged between the fixing plate 202 and the lower base 2 so as to ensure the structural strength of the lower base 2.

In order to improve the dustproof effect between the lower base 2 and the upper end cover 1 and facilitate assembly, a circle of boss 101 is arranged at the outer edge of the upper end cover 1, a circle of groove 201 is correspondingly arranged at the outer edge of the lower base 2, so that the lower base 2 and the upper end cover 1 can be mutually embedded together to clamp the thrust bearing 3, a certain gap is reserved between the lower base 2 and the upper end cover 1, and a sealing ring 4 is arranged on the side wall of the embedded part of the lower base and the upper end cover 1, so that dust is effectively prevented from entering the thrust bearing 3 from the gap between the lower base 2 and the upper end cover 1 on the premise that the normal rotation of the thrust bearing 3 is not influenced.

As shown in fig. 2, since the bottom plate 302 of the thrust bearing 3 is usually in clearance fit with the rotating shaft, in this embodiment, two sealing grooves 205 are formed on the inner wall of the through hole of the lower base 2, and a sealing ring 4 is installed in the sealing groove 205, so as to prevent dust from entering the thrust bearing 3 from the gap between the bottom plate 302 and the rotating shaft, and also enable a sealed cavity to be formed inside the bearing seat. The side of the lower base 2 is provided with the oil injection pipe 206 communicated with the cavity in the bearing seat, the oil injection port of the oil injection pipe 206 is provided with a cap, the height of an oil outlet of the oil injection pipe 206 is the same as the height of a gap between the retainer 304 and the shaft sheet 301, so that the wheel lubricating oil can be smoothly injected into the thrust bearing 3, thereby lubricating the rolling bodies 303, reducing erosion of dust and dirt to the bearing, and reducing friction and abrasion of metal among the rolling bodies 303, the rollaway nest and the retainer 304 in the thrust bearing 3.

Furthermore, the rotary shaft lip-shaped sealing ring 4 is adopted as the sealing ring 4, so that an oil seal inner hub with buffer property is formed between the oil seal main lip and the rotary shaft, the interference of external adverse factors such as eccentricity, surface roughness and out-of-roundness of the shaft on sealing is reduced, meanwhile, the installation is easy, the sealing effect is improved, and the service life is prolonged.

In addition, because the thrust bearing 3 mainly bears axial load, but because the load is often changed along with the change of working conditions in the running process of the equipment, the thrust bearing 3 runs unstably and is easy to generate vibration and noise, the machining precision and the reliability of the equipment are affected, the fatigue damage of the thrust bearing 3 is aggravated, and the service life of the thrust bearing 3 is shortened. Therefore, as a preferred embodiment, the top of the upper end 1 cover is further provided with a mounting groove with a size corresponding to the shaft shoulder 601 of the rotating shaft, and a damping washer 5 is further arranged in the mounting groove to reduce the impact force transmitted to the thrust bearing 3.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the utility model is indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A thrust bearing base, comprising: the lower base is used for supporting and fixing the thrust bearing, and the upper end cover covers the thrust bearing shaft sheet, the lower base and the upper end cover are mutually embedded in a clearance fit manner, and a sealing ring is arranged on the side wall of the embedded part to prevent dust from entering from a clearance between the lower base and the upper end cover; the upper end cover and the lower base are provided with through holes for the rotating shaft to pass through, wherein the inner walls of the through holes of the lower base are also provided with sealing rings to prevent dust from entering from gaps between the bottom plate and the rotating shaft.

2. A thrust bearing base according to claim 1, wherein: the top of the upper end cover is also provided with a mounting groove with the size matched with the shaft shoulder of the rotating shaft.

3. A thrust bearing base according to claim 2, wherein: and a damping washer is arranged in the mounting groove.

4. A thrust bearing base according to claim 1, wherein: and the side surface of the lower base is provided with a filler pipe communicated with the cavity inside the thrust bearing.

5. A thrust bearing base as set forth in claim 4, wherein: the height of the oil outlet of the oil filling pipe is the same as the height of the gap between the retainer and the shaft sheet.

6. A thrust bearing base according to claim 1, wherein: the lower base is provided with a fixing plate, and the fixing plate is provided with a fixing hole so as to conveniently fix the bearing seat on the static surface.

7. A thrust bearing base as set forth in claim 6, wherein: reinforcing ribs are further arranged between the fixing plate and the lower base.

8. A thrust bearing base according to claim 1, wherein: the sealing ring is a rotary shaft lip-shaped sealing ring.

9. A thrust bearing base according to any one of claims 1 to 8, wherein: the thrust bearing is any one of a thrust ball bearing and a thrust roller bearing.