CN214367317U

CN214367317U - Anti-falling structure for dust cover of roller bearing

Info

Publication number: CN214367317U
Application number: CN202023203825.3U
Authority: CN
Inventors: 时智峰; 张晓卫; 杨坡; 李伟功
Original assignee: LUOYANG BEST PRECISION MACHINERY MANUFACTURE CO Ltd
Current assignee: LUOYANG BEST PRECISION MACHINERY MANUFACTURE CO Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-08
Anticipated expiration: 2030-12-28

Abstract

An anti-falling structure of a dust cover of a roller bearing is characterized in that anti-falling flanges are arranged on a retainer ring and the dust cover to prevent the dust cover from falling off; or the retainer ring is provided with the embedded nut, and the dustproof cover is fixedly connected to the retainer ring through the screw to prevent the bearing cover from falling off; the two structures effectively solve the problem that the dust cover of the roller bearing falls off in the process of delivery, transportation and installation, so that the use satisfaction of customers of the roller bearing is improved.

Description

Anti-falling structure for dust cover of roller bearing

Technical Field

The utility model relates to a ring rolling mill equipment technical field, concretely relates to roller bearing shield anti-drop structure.

Background

The dust covers on two end faces of the existing roller bearing are of movable structures, and the axial position of the dust covers on the roller bearing is positioned and fixed through a connecting shaft bracket of the roller bearing in the installation process of the roller bearing; however, before the roller bearing is not installed, the dust cover may fall off, and particularly, during the delivery and transportation of the roller bearing, the dust cover may fall off along with the vibration and jolt in the transportation process, so that foreign matters may enter the bearing of the roller bearing, thereby affecting the customer satisfaction of the roller bearing delivery.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency in the background art, the utility model discloses improved the connection structure of gyro wheel bearing shield, made shield and gyro wheel bearing constitute fixed connection, solved the shield problem of droing of current gyro wheel bearing both ends face.

In order to realize the utility model aims at, the utility model adopts the following technical scheme: an anti-falling structure of a dust cover of a roller bearing comprises a mandrel and a roller sleeve which are rotationally connected, wherein check rings are arranged on two sides of the roller sleeve and fixedly connected with the mandrel; the outer end face of the retainer ring is fixedly provided with a dustproof cover, and the dustproof cover which is fixedly arranged solves the problem that the dustproof covers on the two end faces of the existing roller bearing fall off.

Furthermore, a check ring anti-falling check edge is arranged on the outer end face of the check ring, and a check ring assembly guide surface and a check ring assembly guide R angle are sequentially connected to the outer side of the check ring anti-falling check edge; the end surface of the dust cover facing the retainer ring is provided with a dust cover anti-falling flange, and the outer side surface of the dust cover anti-falling flange is sequentially connected with a dust cover assembly guide surface and a dust cover assembly guide R angle; the check ring assembly guide surface, the check ring assembly guide R angle, the dustproof cover assembly guide surface and the dustproof cover assembly guide R angle are used for assembly guide during assembly of the check ring and the dustproof cover;

the diameter of the anti-falling flange of the dustproof cover is larger than that of the anti-falling flange of the check ring, and the anti-falling flange of the dustproof cover and the check ring can interfere in the assembling process, so that the anti-falling flange of the dustproof cover needs to be forcibly pressed into the anti-falling flange of the check ring through an assembling tool, and the fixed connection between the check ring and the dustproof cover is realized; this kind of drop-proof structure of shield is undetachable connection structure, and if dismantle the shield, the shield structure will take place to destroy.

Preferably, the check ring is fixedly provided with a plurality of embedded nuts, the dustproof cover is provided with a plurality of counter bores, the check ring and the dustproof cover are fixedly connected through screws, and the anti-falling structure of the dustproof cover is a detachable connecting structure; it is added that, in the roller bearing, the retainer ring actually bears the axial load of the roller bearing, so the retainer ring is actually equivalent to a tight ring of the thrust roller bearing, the processing process needs a quenching process, and the retainer ring can generate large deformation after quenching, so the retainer ring is not suitable for processing connecting threads; in the utility model, the stepped hole is pre-processed on the retainer ring, and the processed embedded nut is pressed into the stepped hole after quenching for being connected with the dust cap, thereby solving the problem that the retainer ring is not suitable for processing the connecting thread; in order to prevent the pre-processed counter bore from generating adverse effects on the quenching of the baffle ring, a stress relief ring groove can be processed between the counter bore and the working surface of the baffle ring, namely the contact surface of the baffle ring and the roller, so as to improve the condition; in addition, the counter bore can be machined by spark discharge after the baffle ring is quenched, but the relative machining cost is high.

Furthermore, the embedded nut is made of copper; the embedded nut and the retaining ring counter bore are in interference fit to prevent the embedded nut from falling off; the embedded nut is made of copper materials with lower hardness, so that the assembly difficulty and the interference force among the counter bores of the retaining ring of the embedded nut can be reduced; the screw is countersunk screw, and its screw head terminal surface is less than the outer terminal surface of shield after countersunk screw assembles, prevents that roller bearing when the assembly, countersunk screw's screw head and spiale bracket from taking place to interfere.

Due to the adoption of the technical scheme, the method has the following beneficial effects: the utility model discloses an anti-drop structure of a dust cover of a roller bearing, which prevents the dust cover from dropping off by arranging anti-drop flanges on a retaining ring and the dust cover; or the retainer ring is provided with the embedded nut, and the dustproof cover is fixedly connected to the retainer ring through the screw to prevent the bearing cover from falling off; the two structures effectively solve the problem that the dust cover of the roller bearing falls off in the process of delivery, transportation and installation, so that the use satisfaction of customers of the roller bearing is improved.

Drawings

FIG. 1 is a schematic sectional view of a roller bearing structure;

FIG. 2 is a first sectional view of a retainer ring;

FIG. 3 is an enlarged view of part A;

FIG. 4 is a first cross-sectional view of a dust cap;

FIG. 5 is an enlarged view of a portion B;

FIG. 6 is a first cross-sectional view of an assembly structure of a retainer ring and a dust cap;

FIG. 7 is an enlarged view of a portion C;

FIG. 8 is a second sectional view of the retainer ring;

FIG. 9 is an enlarged view of a portion D;

FIG. 10 is a schematic sectional view of a dust cap;

FIG. 11 is an enlarged view of a portion E;

FIG. 12 is a second sectional view of an assembly structure of a retainer ring and a dust cap;

fig. 13 is an enlarged view of a part F.

In the figure: 1. a mandrel; 2. a roller sleeve; 3. a retainer ring; 3.1, retaining ring anti-drop flanges; 3.2, assembling a guide surface on the check ring; 3.3, assembling a guide R angle by a check ring; 3.5, embedding a nut; 4. a dust cover; 4.1, preventing the dust cover from dropping off the flange; 4.2, assembling a guide surface on the dustproof cover; 4.3, assembling a dustproof cover to guide an R angle; 4.5, counter bores; 5. and (4) screws.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

An anti-falling structure of a dust cover of a roller bearing comprises a mandrel 1 and a roller sleeve 2 which are rotationally connected, wherein retainer rings 3 are arranged on two sides of the roller sleeve 2, and the retainer rings 3 are fixedly connected with the mandrel 1; a dustproof cover 4 is fixedly arranged on the outer end face of the retainer ring 3; a retainer ring anti-falling retaining edge 3.1 is arranged on the outer end surface of the retainer ring 3, and a retainer ring assembly guide surface 3.2 and a retainer ring assembly guide R angle 3.3 are sequentially connected to the outer side of the retainer ring anti-falling retaining edge 3.1; the end face, facing the retainer ring 3, of the dustproof cover 4 is provided with a dustproof cover anti-falling flange 4.1, and the outer side of the dustproof cover anti-falling flange 4.1 is sequentially provided with a dustproof cover assembly guide surface 4.2 and a dustproof cover assembly guide R angle 4.3 in a connecting mode; the diameter of the dustproof cover anti-falling flange 4.1 is larger than that of the retainer ring anti-falling flange 3.1; the check ring 3 and the dust cover 4 are fixedly connected with the anti-falling flange 4.1 of the dust cover through the matching of the anti-falling flange 3.1.

An anti-falling structure of a dust cover of a roller bearing comprises a mandrel 1 and a roller sleeve 2 which are rotationally connected, wherein retainer rings 3 are arranged on two sides of the roller sleeve 2, and the retainer rings 3 are fixedly connected with the mandrel 1; a dustproof cover 4 is fixedly arranged on the outer end face of the retainer ring 3; the retaining ring 3 is fixedly provided with a plurality of embedded nuts 3.5 made of copper, the dust cover 4 is provided with a plurality of counter bores 4.5, and the retaining ring 3 and the dust cover 4 are fixedly connected through countersunk head screws 5.

The part of the utility model not detailed is prior art.

Claims

1. An anti-falling structure of a dust cover of a roller bearing comprises a mandrel (1) and a roller sleeve (2) which are rotationally connected, wherein retainer rings (3) are arranged on two sides of the roller sleeve (2), and the retainer rings (3) are fixedly connected with the mandrel (1); the method is characterized in that: and a dustproof cover (4) is fixedly arranged on the outer end face of the retainer ring (3).

2. The anti-drop structure of the dust cap of the roller bearing according to claim 1, wherein: a retainer ring anti-falling retaining edge (3.1) is arranged on the outer end surface of the retainer ring (3) close to the outer end surface, and a retainer ring assembling guide surface (3.2) and a retainer ring assembling guide R angle (3.3) are sequentially connected with the outer side of the anti-falling retaining edge (3.1);

the end face, facing the retainer ring (3), of the dust cover (4) is provided with a dust cover anti-falling flange (4.1), and the outer side of the dust cover anti-falling flange (4.1) is sequentially connected with a dust cover assembly guide surface (4.2) and a dust cover assembly guide R angle (4.3);

the diameter of the anti-falling flange (4.1) of the dust cover is larger than that of the anti-falling flange (3.1) of the check ring;

the check ring (3) and the dust cover (4) are fixedly connected with the anti-falling flange (4.1) of the dust cover through the matching of the anti-falling flange (3.1) of the check ring.

3. The anti-drop structure of the dust cap of the roller bearing according to claim 1, wherein: a plurality of embedded nuts (3.5) are fixedly arranged on the check ring (3), a plurality of counter bores (4.5) are arranged on the dustproof cover (4), and the check ring (3) and the dustproof cover (4) are fixedly connected through screws (5).

4. The anti-drop structure of the dust cap of the roller bearing according to claim 3, wherein: the embedded nut (3.5) is made of copper; the screw (5) is a countersunk head screw.