CN212868212U

CN212868212U - Outer ferrule for dustproof bearing

Info

Publication number: CN212868212U
Application number: CN202021621953.7U
Authority: CN
Inventors: 张健
Original assignee: Xinchang Jianfeng Bearing Co ltd
Current assignee: Xinchang Jianfeng Bearing Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-02
Anticipated expiration: 2030-08-06

Abstract

The invention provides an outer ferrule for a dustproof bearing, which comprises a ferrule body and a dustproof mechanism arranged on the ferrule body, wherein the dustproof mechanism comprises dustproof rings correspondingly arranged on the left side and the right side of the ferrule body and connecting rings coaxially arranged on the dustproof rings; an annular concave part is arranged on one side of the connecting ring facing the ferrule body, and an annular groove matched with the concave part is arranged on the ferrule body; evenly be provided with at least three chucking spare on the depressed part, each chucking spare is hollow spherical structure spare, correspond the position of recess on the lasso body be equipped with chucking spare complex draw-in groove, draw-in groove and recess intercommunication. The invention has simple structure and easy assembly and use, and the dustproof performance of the outer ferrule can be greatly improved by arranging the dustproof ring on the ferrule body, thereby being beneficial to prolonging the service life of the bearing.

Description

Outer ferrule for dustproof bearing

Technical Field

The invention belongs to the field of bearings, and particularly relates to an outer ring for a dustproof bearing.

Background

At present, two sides of a used sealing bearing are provided with a dust cover, a sealing ring and the like; in order to prevent external dust from entering the bearing, the inside of the bearing is protected by the dustproof cover or the sealing ring, the dustproof cover of the existing sealed bearing is directly buckled on two sides of the bearing, a sealing surface is formed between the dustproof cover and the bearing to prevent the external dust from entering, and the structure is easy to cause the dust to enter the inside of the bearing, damage is caused to the bearing, and the service life of the bearing is shortened; however, the existing dust cover or dust ring is generally fixed on the bearing sleeve only through a single structure clamp, and the dust ring is very unstable in the bearing rotation process and is very easy to fall off.

Disclosure of Invention

In view of this, the present invention provides an outer race for a dust-proof bearing, which is designed to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an outer ferrule for a dustproof bearing comprises a ferrule body and a dustproof mechanism arranged on the ferrule body, wherein the dustproof mechanism comprises dustproof rings correspondingly arranged on the left side and the right side of the ferrule body and a connecting ring coaxially arranged on the dustproof rings; an annular concave part is arranged on one side of the connecting ring facing the ferrule body, and an annular groove matched with the concave part is arranged on the ferrule body; evenly be provided with at least three chucking spare on the depressed part, each chucking spare is hollow spherical structure spare, correspond the position of recess on the lasso body be equipped with chucking spare complex draw-in groove, draw-in groove and recess intercommunication.

Furthermore, the concave part is provided with a through hole communicated with the inner cavity of the clamping piece.

Furthermore, a positioning pin is arranged on the concave part corresponding to the through hole, a protruding part is arranged at one end of the positioning pin penetrating through the through hole, and an annular baffle plate used for shielding the concave part is arranged at the other end of the positioning pin.

Further, the annular baffle is in interference fit with the concave part.

Furthermore, the section of the annular groove is V-shaped, and the clamping groove is an O-shaped groove.

Furthermore, the clamping piece is made of rubber.

Compared with the prior art, the invention has the following advantages:

the dustproof ring is arranged on the ferrule body, so that the dustproof performance of the outer ferrule can be greatly improved, the service life of a bearing is favorably prolonged, the clamping piece is arranged on the connecting ring, the clamping groove matched with the clamping piece is arranged on the ferrule body, the stability of the connecting ring and the dustproof ring on the ferrule body is greatly improved, and the dustproof ring can be ensured to play a good dustproof protection role all the time.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a schematic view of the structure of the connection ring in the inventive embodiment of the present invention.

Description of reference numerals:

1-ferrule body; 2-a dustproof ring; 3-connecting rings; 4-a protrusion; 5-a clip; 6-a boss; 7-a positioning pin; 8-a recess; 9-an annular baffle; 10-a through hole; 11-a limit groove.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

An outer ferrule for a dustproof bearing comprises a ferrule body 1 and a dustproof mechanism arranged on the ferrule body 1, wherein the dustproof mechanism comprises dustproof rings 2 correspondingly arranged on the left side and the right side of the ferrule body 1 and connecting rings 3 coaxially arranged on the dustproof rings 2, annular protruding parts 4 are arranged on the inner sides and the outer sides of the dustproof rings 2, and annular limiting grooves 11 matched with the protruding parts 4 are arranged on the inner sides of the ferrule body 1; specifically, the dust-proof ring 2 and the connection ring 3 may be integrally formed, or may be fixed by adhering with an adhesive, and a person skilled in the art may select a connection manner of the connection ring 3 and the dust-proof ring 2 as needed, which is not described herein again; the inner ring of the bearing is also generally provided with a limiting groove, the protruding parts 4 at two sides of the dustproof ring 2 can be respectively inserted into the limiting grooves 11 on the inner ring and the outer ring, and the limiting grooves 11 are matched with the protruding parts 4, so that the dustproof ring 2 can be ensured to have a better shielding effect on balls, and the dustproof effect of the dustproof ring 2 can be improved;

an annular concave part 8 is arranged on one side of the connecting ring 3 facing the ferrule body 1, and an annular groove matched with the concave part 8 is arranged on the ferrule body 1 corresponding to the concave part 8; at least three clamping pieces 5 are uniformly arranged on the recessed part 8, each clamping piece 5 is a hollow spherical structural part, a clamping groove matched with the clamping piece 5 is arranged on the ferrule body 1 corresponding to the groove, and the clamping groove is communicated with the groove; specifically, a plurality of clamping pieces 5 can be uniformly arranged, for example, nine clamping pieces 5 can be arranged, and the plurality of clamping pieces 5 is beneficial to improving the stability of the connecting ring 3 on the ferrule body 1; the concave part 8 is matched with the groove, so that the stability of the connecting ring 3 and the dust-proof ring 2 on the ferrule body 1 is improved; through set up at least three chucking spare 5 on depressed part 8, chucking spare 5 can insert the draw-in groove through deformation, utilizes chucking spare 5 and draw-in groove cooperation, has realized the further fixed of go-between 3 and dust ring 2, has improved the stability of dust ring 2 on lasso body 1 greatly.

The concave part 8 is provided with a through hole 10 communicated with the inner cavity of the clamping piece 5; a positioning pin 7 is arranged on the depressed part 8 corresponding to the through hole 10, one end of the positioning pin 7 penetrating through the through hole 10 is provided with a convex part 6, and the other end is provided with an annular baffle 9 for shielding the depressed part 8; it is specific, locating pin 7 can with ring baffle 9 integrated into one piece, also can paste fixedly, technical personnel in the field also can select other modes by oneself as required, as long as can realize locating pin 7 and ring baffle 9 stable connection can, the position that corresponds the through-hole on the chucking spare can set up the opening, after chucking spare 5 inserts the draw-in groove, for further improving chucking spare 5 and draw-in groove complex stability, operating personnel can insert through-hole 10 with locating pin 7, along with locating pin 7 stretches into chucking spare 5 in, bellying 6 on the locating pin 7 can be through filling the inside cavity of chucking spare 5, realize preventing 5 deformations of chucking spare, thereby avoid chucking spare 5 to deviate from the draw-in groove, chucking spare 5 and draw-in groove complex stability have been improved greatly.

The annular baffle 9 is in interference fit with the concave part 8; specifically, the position that corresponds depressed part 8 on the connection ring 3 is equipped with the annular heavy groove with the annular baffle 9 complex, and under the interference fit state, annular baffle 9 can be blocked by depressed part 8, ensures that setting that annular baffle 9 can be stable is on go-between 3, avoids annular baffle 9 to take place to loosen at go-between 3 rotation in-process and takes place to take place.

The section of the annular groove is V-shaped, and the clamping groove is an O-shaped groove; specifically, the annular groove of V type structure is favorable to inserting of depressed part 8, and the chucking spare 5 of also being convenient for simultaneously takes place deformation, is favorable to chucking spare 5 more convenient insert draw-in groove, and it is very convenient that the operation is got up.

The clamping piece 5 is made of rubber; specifically, the clamping piece 5 and the concave part 8 can be integrally formed, and can also be fixed on the concave part 8 through adhesive bonding, a person skilled in the art can also select other fixing modes of the clamping piece 5 according to needs, as long as the stable connection between the clamping piece 5 and the concave part 8 can be realized, through the clamping piece 5 made of rubber, the clamping piece 5 has better deformation capacity, which is beneficial to the assembly of the outer ferrule, and meanwhile, under the action of the convex part 6 of the positioning pin 7, even if the clamping piece 5 made of rubber is adopted, the convex part 6 can also well limit the deformation of the clamping piece 5, so that the clamping piece 5 is ensured to be stably matched with the clamping groove; the connecting ring 3 and the dustproof ring 2 can be always stably arranged on the ferrule body 1 under the dual-limiting fixation of the clamping piece 5 and the protruding part 4, so that the stability and the dustproof effect of the outer ferrule in the use process are greatly improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. The utility model provides an outer lasso for dust proof bearing which characterized in that: the dustproof mechanism comprises a ferrule body and a dustproof mechanism arranged on the ferrule body, wherein the dustproof mechanism comprises dustproof rings correspondingly arranged on the left side and the right side of the ferrule body and a connecting ring coaxially arranged on the dustproof rings; an annular concave part is arranged on one side of the connecting ring facing the ferrule body, and an annular groove matched with the concave part is arranged on the ferrule body; evenly be provided with at least three chucking spare on the depressed part, each chucking spare is hollow spherical structure spare, correspond the position of recess on the lasso body be equipped with chucking spare complex draw-in groove, draw-in groove and recess intercommunication.

2. The outer race for a dust bearing according to claim 1, wherein: the concave part is provided with a through hole communicated with the inner cavity of the clamping piece.

3. The outer race for a dust bearing according to claim 2, wherein: the position of the depressed part corresponding to the through hole is provided with a positioning pin, one end of the positioning pin penetrating through the through hole is provided with a protruding part, and the other end of the positioning pin is provided with an annular baffle used for shielding the depressed part.

4. The outer race for a dust bearing according to claim 3, wherein: the annular baffle is in interference fit with the concave part.

5. The outer race for a dust bearing according to claim 1, wherein: the section of the annular groove is V-shaped, and the clamping groove is an O-shaped groove.

6. The outer race for a dust bearing according to claim 1, wherein: the clamping piece is made of rubber.