CN204200864U - With the bearing of dust cover - Google Patents
With the bearing of dust cover Download PDFInfo
- Publication number
- CN204200864U CN204200864U CN201420625792.7U CN201420625792U CN204200864U CN 204200864 U CN204200864 U CN 204200864U CN 201420625792 U CN201420625792 U CN 201420625792U CN 204200864 U CN204200864 U CN 204200864U
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- Prior art keywords
- dust
- bearing
- proof
- cover
- snap ring
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Abstract
The utility model discloses a kind of bearing with dust cover, comprise bearing inner race, bearing outer ring and dust cover, bearing inner race and bearing outer ring are provided with for the fixing draw-in groove of dust cover, dust cover comprises dust-proof inner cap and dust-proof enclosing cover, dust-proof inner cap and dust-proof outer cover be respectively arranged with to match with draw-in groove in snap ring and outer snap ring, the other end of dust-proof inner cap snap ring relative to dust-proof enclosing cover is connected and joint is provided with gap, meanwhile, in gap, is filled with grease.By dust cover being arranged to dust-proof inner cap and dust-proof enclosing cover, and in recessed bond ing between dust-proof inner cap and dust-proof enclosing cover, by grease-filled in gap, make bearing when rotating, dust-proof inner cap and dust-proof enclosing cover can relatively rotate, avoid the wearing and tearing between dust cover and bearing, improve the working life of bearing integral.
Description
Technical field
The utility model relates to field of bearings, is specifically related to a kind of bearing with dust cover.
Background technique
Bearing is in mechanical transmission course, play parts that are fixing and reduction load friction factor.Alternatively, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor in power transmission process and retainer shaft central position.Bearing is a kind of very important component in contemporary machinery.Its major function is supported mechanical solid of rotation, in order to reduce the mechanical load friction factor of equipment in transmission process.Bearing in use; usually having the impurity such as dust, stone drops between bearing outer ring and inner ring; cause ball to wear and tear, make bearing cannot smooth rotation in rotation process, produce shake; bearing temperature is raised; therefore, in the occasion that some impurity are more, with dust cover on bearing; avoid impurity to enter between bearing inner race and bearing outer ring, cause bearing wear.
Chinese patent 201320836538.7 discloses " a kind of bearing dustproof cover ", be arranged at Bearing inner, bearing comprises bearing outer ring, bearing inner race, ball between bearing outer ring and inner ring, described bearing dustproof cover is arranged between bearing outer ring and bearing inner race, one end that described bearing dustproof cover contacts with bearing inner race is provided with hair brush structure, and described hair brush structure respectively extends a segment distance respectively to described bearing inner race and described ball direction.This bearing dustproof cover realizes dust-proof by the hairbrush being arranged on dust cover one end, but in bearing rotation process, the contact friction distance of hairbrush and bearing inner race, easy generation high temperature, not only affect the working life of bearing, hairbrush also can be made because of high temperature deformation, cause dust-proof effect to be deteriorated.
Model utility content
For the deficiencies in the prior art, the utility model provides a kind of bearing with dust cover, dust cover is divided into the dust-proof inner cap and dust-proof enclosing cover that are connected, by being connected with gap between dust-proof inner cap and dust-proof enclosing cover, avoid the friction between dust cover and bearing, improve the whole service life of bearing.
For achieving the above object, the utility model provides following technological scheme: a kind of bearing with dust cover, comprise bearing inner race, bearing outer ring and dust cover, bearing inner race and bearing outer ring are provided with for the fixing draw-in groove of dust cover, dust cover comprises dust-proof inner cap and dust-proof enclosing cover, dust-proof inner cap and dust-proof outer cover be respectively arranged with to match with draw-in groove in snap ring and outer snap ring, the other end of dust-proof inner cap snap ring relative to dust-proof enclosing cover is connected and joint is provided with gap.
By adopting technique scheme, should by adding equation on bearing outer ring and bearing inner race, avoid dust, the impurity such as stone enter between bearing inner race and bearing outer ring, prevent bearing wearing and tearing in use, extend the working life of bearing, in order to avoid the friction between dust cover and bearing, bearing cap is divided into dust-proof inner cap and dust-proof enclosing cover, and be connected on bearing inner race and bearing outer ring respectively, in there being being connected of gap between dust-proof inner cap and dust-proof enclosing cover, when bearing inner race and bearing outer ring relatively rotate, by having the dust-proof inner cap in gap and dust-proof enclosing cover, avoid the friction between dust cover and bearing, reduce because of fricative heat, can effectively avoid impurity to enter in bearing simultaneously, improve the working life of bearing.
The utility model is set to further, covers the other end of snap ring relatively and be provided with jut in dust-proof, and the dust-proof outer the other end covering relatively outer snap ring is provided with the clamping part for coated jut.
By adopting technique scheme, one end of the relatively dust-proof enclosing cover of dust-proof inner cap is provided with jut, one end of the relatively dust-proof inner cap of dust-proof enclosing cover is provided with the clamping part of coated jut, and after clamping part and jut be connected, centre is formed with gap, by the setting in gap, when dust-proof inner cap and dust-proof enclosing cover relatively rotate, friction can not be produced, effectively decrease the friction between traditional dust cover and bearing, the wearing and tearing to bearing can not only be reduced, also can reduce bearing in operation process because of fricative heat.
The utility model is set to further, the rounded structure in jut cross section, and clamping part cross section is fan-shaped circle structure, and the fan-shaped internal radius of clamping part is greater than jut diameter of a circle.
By adopting technique scheme, circle is arranged in the cross section of jut and clamping part interface is formed in fan-shaped ring, and the fan-shaped annulus of clamping part can be well wherein coated by jut, realize being connected of clamping part and jut, reach the dust sealing effect of dust cover.
The utility model is set to further, and the central angle that the fan-shaped annulus in clamping part cross section is corresponding is greater than 180 °.
By adopt technique scheme, the central angle corresponding to circular arc is greater than 180 ° of settings, when clamping part and jut in mating connection time, effectively can envelope jut, avoid jut to come off in clamping part, reach stable being connected.
The utility model is set to further, is filled with grease in gap.
By adopting technique scheme, when dust-proof inner cap and dust-proof enclosing cover relatively rotate, grease can play good lubrication to the gap between dust-proof inner cap and dust-proof enclosing cover, can also prevent impurity from entering in bearing by the gap between dust-proof inner cap and dust-proof enclosing cover simultaneously, the sealing of bearing integral is improved.
The utility model is set to further, and the snap ring of dust-proof inner cap and dust-proof enclosing cover arranges bossed shell fragment.
By adopting technique scheme, by arranging the shell fragment of projection on the snap ring of dust-proof inner cap and dust-proof enclosing cover, when dust-proof inner cap is connected with bearing with dust-proof enclosing cover, by the effect of shell fragment, make dust-proof inner cap and the connection between dust-proof enclosing cover and bearing more stable, avoid in bearing rotation process, the phenomenon that dust cover comes off.
The utility model is set to further, and on bearing inner race and bearing outer ring, the cross-sectional width of draw-in groove is reduced to two ends gradually by centre, and draw-in groove opening is provided with chamfering.
By adopting technique scheme, by going out to be provided with chamfering at draw-in groove opening, when dust cover is loaded on bearing, by the chamfering more convenient dust cover of energy and coordinating between bearing, meanwhile, the sectional shape of bearing draw-in groove is reduced between two ends by centre, when snap ring coordinates in insertion draw-in groove, by the connection of shell fragment on draw-in groove shape and snap ring, the connection between dust cover and bearing can be made more firm.
Compared with prior art, by dust cover being arranged to dust-proof inner cap and dust-proof enclosing cover, and in recessed bond ing between dust-proof inner cap and dust-proof enclosing cover, by grease-filled in gap, make bearing when rotating, dust-proof inner cap and dust-proof enclosing cover can relatively rotate, and avoid the wearing and tearing between dust cover and bearing, improve the working life of bearing integral.
Accompanying drawing explanation
Fig. 1 is the bearing generalized section of the utility model band dust cover;
Fig. 2 is the enlarged diagram in A portion in Fig. 1.
Reference character: 1, bearing outer ring; 2, bearing inner race; 3, ball; 4, retainer; 5, dust cover; 6, grease; 7, chamfering; 11, draw-in groove; 51, dust-proof enclosing cover; 52, dust-proof inner cap; 53, snap ring; 54, shell fragment; 111, exterior bayonet slot; 112, inner card cage; 511, clamping part; 521, jut; 531, outer snap ring; 532, interior snap ring.
Embodiment
Be described further with reference to Fig. 1, Fig. 2 bearing embodiment to the utility model band dust cover.
A kind of bearing with dust cover, comprise bearing inner race 2, bearing outer ring 1 and dust cover 5, ball 3 is also provided with and for keeping the retainer 4 of ball 3 position between bearing inner race 2 and bearing outer ring 1, and be provided with the annular groove matched with ball 3 in the middle of the surface of the relative outer ring of bearing inner race 2, the surface of the relative bearing inner race 2 of bearing outer ring 1 is also provided with the annular groove matched with ball 3, by coordinating of two grooves and ball 3, after making bearing assemble, ball 3 can remain between bearing outer ring 1 and bearing inner race 2, friction factor in effective attenuating rotatingshaft rotation process.
Bearing inner race 2 and bearing outer ring 1 are respectively arranged with for the fixing inner card cage 112 of dust cover 5 and exterior bayonet slot 111, dust cover 5 comprises dust-proof inner cap 52 and dust-proof enclosing cover 51, dust-proof inner cap 52 and dust-proof enclosing cover 51 are respectively arranged with snap ring 532 and outer snap ring 531 in matching with draw-in groove 11, and distance between exterior bayonet slot 111 with inner card cage 112 is equal with the distance between outer snap ring 531 and interior snap ring 532, by interior snap ring 532 and inner card cage 112, outer snap ring 531 and coordinating between exterior bayonet slot 111, when bearing cap is connected with bearing fit, draw-in groove 11 can effectively make bearing cap be fixed on bearing with the Placement of snap ring 53.Simultaneously, in order to be that dust cover 5 can stable be connected on bearing, can not drop out in bearing rotation process, Olive Shape is arranged in the cross section of draw-in groove on bearing 11, namely the shape reduced gradually to both sides by the intermediate portion of draw-in groove 11, and on snap ring 53 with on the surface of draw-in groove 11 connecting part, bossed shell fragment 54 is set, preferably, the inner and outer surface of snap ring 53 is provided with shell fragment 54, it is inside and outside when dust cover 5 is mounted on bearing, snap ring 53 on dust cover 5 aligns with the draw-in groove 11 on bearing, then dust cover 5 is pressed in bearing, shell fragment 54 on snap ring 53 is compressed by draw-in groove 11 opening, after snap ring 53 is compressed into draw-in groove 11, shell fragment 54 on snap ring 53 is upspring, by the outstanding space in the middle part of draw-in groove 11, in snap ring 53 passes through, the shell fragment 54 that outer surface is arranged is stuck in draw-in groove 11, reach the stable effect connected.
Further, in order to make the more convenient installation of dust cover 5, draw-in groove 11 opening of bearing is provided with chamfering 7, when dust cover 5 installed by bearing, can effectively be connected on bearing in order to dust cover 5 can be made, draw-in groove 11 closes with the matching size of snap ring 53, in installation process, time in dust cover 5 casees, having blocked the sight line of installation personnel, can be that the installation of dust cover 5 becomes loaded down with trivial details, by the chamfering 7 that bearing draw-in groove 11 is arranged, can, when installation personnel cannot see aligning clearly, by chamfering, snap ring 53 be alignd with draw-in groove 11 fast, the installation of convenient dust-proofing lid 5.Simultaneously, the shape of dust-proof inner cap 52 and dust-proof enclosing cover 51 is all in " 7 " font, i.e. snap ring 53 and dust-proof inner cap 52, dust-proof enclosing cover 51 is in vertical relation, when snap ring 53 is connected on draw-in groove 11, dust-proof inner cap 52 can be parallel relation with the side of bearing with dust-proof enclosing cover 51, can not only the installation of more convenient dust cover 5, also have after dust cover 5 is installed, stable Spielpassung is realized between dust-proof inner cap 52 and dust-proof enclosing cover 51, in rotation process, reduce the vibrations of dust cover 5, it is the dust-proof effect that dust cover 5 can not only reach good, severe friction can also be avoided to produce amount of heat, cause the damage of bearing.
In order to make dust cover 5 when bearing rotates, effectively can reduce the friction between bearing and dust cover 5, avoid frictional heat, affect the normal use of bearing, the connection with certain interval is arranged in the connection of dust-proof inner cap 52 and dust-proof enclosing cover 51, preferably, on dust-proof inner cap 52, one end of relatively dust-proof enclosing cover 51 is provided with jut 521, one end of the relatively dust-proof inner cap 52 of dust-proof enclosing cover 51 is provided with the clamping part 511 for coated jut 521, and clamping part 511 and jut 521 are formed when coordinating, centre is formed with certain space.Preferably, circle is arranged in the cross section of jut 521, the cross section of clamping part 511 is then set to the fan-shaped annulus arranged with jut 521 circular shape concentric, and the inner circle radius of fan-shaped annulus is greater than jut 521 radius of a circle, when bearing inner race 2 and bearing outer ring 1 formation are connected, by the relation that is connected between fan-shaped annulus and circle, make to be formed with space between clamping part 511 and jut 521, when bearing inner race 2 and bearing outer ring 1 relatively rotate, by the setting in gap, the friction between bearing inner race 2 and bearing outer ring 1 effectively can be avoided.The fan-shaped annulus of clamping part 511 is provided with opening, and the central angle corresponding to the fan-shaped annulus of clamping part 511 is greater than 180 °, preferably.The central angle of fan-shaped for clamping part 511 annulus is arranged to 270 °, 270 ° of fan-shaped annulus arranged, effectively can play covered effect to jut 521, when dust-proof inner cap 52 relatively rotates with dust-proof enclosing cover 51, jut 521 can not be made to come off in clamping part 511, form stable connection, make dust-proof effect better.Further, grease 6 is filled with in gap, preferably, grease 6 adopts quasi-hydrodynamic lubrication grease, by the filling of semi fluid grease, good lubrication can not only be played to the connection between dust-proof inner cap 52 and dust-proof enclosing cover 51, also by grease 6, good sealing effect is formed to the gap between clamping part 511 and jut 521, impurity is avoided to enter in bearing by the gap between jut 521 and clamping part 511, the wearing and tearing on aggravation ball 3 surface, improve the working life of ball 3, thus improve the working life of bearing integral.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the bearing with dust cover, comprise bearing inner race, bearing outer ring and dust cover, it is characterized in that: described bearing inner race and bearing outer ring are provided with for the fixing draw-in groove of dust cover, described dust cover comprises dust-proof inner cap and dust-proof enclosing cover, described dust-proof inner cap and dust-proof outer cover be respectively arranged with to match with draw-in groove in snap ring and outer snap ring, the other end of described dust-proof inner cap snap ring relative to dust-proof enclosing cover is connected and joint is provided with gap.
2. the bearing of band dust cover according to claim 1, is characterized in that: described dust-proof in cover the other end of snap ring relatively and be provided with jut, the described dust-proof outer the other end covering relatively outer snap ring is provided with the clamping part for coated described jut.
3. the bearing of band dust cover according to claim 2, is characterized in that: the rounded structure in described jut cross section, and described clamping part cross section is fan-shaped circle structure, and the fan-shaped internal radius of described clamping part is greater than jut diameter of a circle.
4. the bearing of band dust cover according to claim 3, is characterized in that: the central angle that the fan-shaped annulus in described clamping part cross section is corresponding is greater than 180 °.
5. the bearing of band dust cover as claimed in any of claims 1 to 4, is characterized in that: be filled with grease in described gap.
6. the bearing of band dust cover according to claim 1, is characterized in that: the snap ring of described dust-proof inner cap and dust-proof enclosing cover arranges bossed shell fragment.
7. the bearing of band dust cover according to claim 6, is characterized in that: on described bearing inner race and described bearing outer ring, the width in the cross section of draw-in groove is reduced to two ends gradually by centre, and draw-in groove opening is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420625792.7U CN204200864U (en) | 2014-10-27 | 2014-10-27 | With the bearing of dust cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420625792.7U CN204200864U (en) | 2014-10-27 | 2014-10-27 | With the bearing of dust cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200864U true CN204200864U (en) | 2015-03-11 |
Family
ID=52658828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420625792.7U Expired - Fee Related CN204200864U (en) | 2014-10-27 | 2014-10-27 | With the bearing of dust cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612769A (en) * | 2016-12-09 | 2018-10-02 | 镇江东正精工机械有限公司 | A kind of bearing with dustproof cover |
-
2014
- 2014-10-27 CN CN201420625792.7U patent/CN204200864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612769A (en) * | 2016-12-09 | 2018-10-02 | 镇江东正精工机械有限公司 | A kind of bearing with dustproof cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |