CN202674035U - Dust cover of bearing - Google Patents
Dust cover of bearing Download PDFInfo
- Publication number
- CN202674035U CN202674035U CN2012202881819U CN201220288181U CN202674035U CN 202674035 U CN202674035 U CN 202674035U CN 2012202881819 U CN2012202881819 U CN 2012202881819U CN 201220288181 U CN201220288181 U CN 201220288181U CN 202674035 U CN202674035 U CN 202674035U
- Authority
- CN
- China
- Prior art keywords
- bearing
- dust cover
- decompressing groove
- outer ring
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a dust cover of a bearing. The dust cover is used in the bearing and is provided with decompression grooves; each decompression groove is arranged at a position on the dust cover matched with an outer ring of the bearing and is provided with a first face and a second face opposite to the first face; each second face is perpendicular to the central axis X of the bearing; an angle of 35-45 degrees is formed by each first face and the corresponding second face; nine decompression grooves 511 are arranged and are arranged on the dust cover of the bearing at intervals; the width on the widest part of each decompression groove 511 is 0.1-0.14 mm; and the decompression grooves are conical. According to the dust cover, since the decompression grooves are arranged to be conical, openings of the decompression grooves and the air suction direction P form large angles, in addition, the width of the widest part of each decompression groove is reduced, and the number of the decompression grooves is increased, dust cannot easily enter the bearing provided with the dust cover.
Description
Technical field
The utility model relates to a kind of bearing, relates in particular to a kind of bearing dustproof cover.
Background technique
Bearing is to work the parts of fixing and reducing the load friction factor in mechanical transmission course.Also can say, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor and retainer shaft central position in the power transmission process.Bearing is a kind of very important component in the contemporary machinery.Its major function is the supported mechanical solid of rotation, in order to the mechanical load friction factor of reduction equipment in transmission process.
Such as the structural representation of Fig. 1 for bearing existing, bearing 100 comprises: bearing outer ring 10, the bearing inner race in bearing outer ring 10 20, be fixed on retainer 40 between bearing outer ring 10 and the bearing inner race 20, be fixed on the some balls 30 on the retainer 40 and be set in bearing outer ring 10 and bearing inner race 20 between dust cover 50, the first end 51 of dust cover 50 is fixed on the bearing outer ring 10, the second end 52 of dust cover 50 is fixed on the bearing inner race 20, enters bearing inside in order to can prevent dust.
In the existing general design, this decompressing groove 511 is positioned at the turning of dust cover 51, decompressing groove 511 directions are consistent with air suction direction P, and decompressing groove 511 openings are larger, when the bearing High Rotation Speed, can produce an air suction, dust enters in a large number with air, with the minimizing in working life of causing bearing.
Fig. 3 be decompressing groove shown in Figure 2 at the structural representation of K direction, see decompressing groove 51 from the K direction of Fig. 1, decompressing groove 511 is square groove, dust can enter in a large number, causes bearing on the low side working life.
Summary of the invention
The purpose of this utility model is to provide a kind of bearing dustproof cover, uses this dust cover dust to be difficult for entering bearing inside.
A kind of bearing dustproof cover, be used in the bearing, bearing comprises bearing outer ring, bearing inner race, ball between bearing outer ring and inner ring, described dust cover is set between bearing outer ring and the bearing inner race, it is characterized in that: described dust cover is provided with decompressing groove, this decompressing groove is located at the position that dust cover matches with bearing outer ring, described decompressing groove have first surface with relative with described first surface second, described second vertical with bearing centre axle X, the angle of described first surface and second formation is 35 °～45 °, described decompressing groove 511 is provided with 9, and the interval is arranged on the described bearing dustproof cover, the width of the widest position of described decompressing groove 511 is 0.1～0.14mm, the tapered shape of described decompressing groove.
In the technique scheme: described decompressing groove is located at the turning that dust cover matches with bearing outer ring.
In the technique scheme: the angle between described first surface and second is 40 °.
The utility model is owing to be arranged to cone-shaped with decompressing groove, the opening of decompressing groove and air suction direction P have larger angle, width with the widest position of decompressing groove reduces in addition, and the decompressing groove number increases, thereby is difficult for entering bearing inside so that the utility model bearing dust is installed.
Description of drawings
Fig. 1 is the structural representation of existing bearing.
Fig. 2 is the I place enlarged view among Fig. 1.
Fig. 3 is that decompressing groove shown in Figure 2 is at the structural representation of K direction.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the II place enlarged view among Fig. 4.
Fig. 6 is that decompressing groove shown in Figure 5 is at the structural representation of K direction.
Embodiment
Below by Figure of description, the technical solution of the utility model is described further.
Be the structural representation of the utility model bearing such as Fig. 4, bearing 100 comprises: bearing outer ring 10, the bearing inner race in bearing outer ring 10 20, be fixed on retainer 40 between bearing outer ring 10 and the bearing inner race 20, be fixed on the some balls 30 on the retainer 40 and be set in bearing outer ring 10 and bearing inner race 20 between dust cover 50, dust cover 50 is in order to prevent that dust from entering the inside of bearing.
In order to prevent dust cover 50 and bearing outer ring 10 distortion, generally be provided with decompressing groove 511 at dust cover 51 and bearing outer ring 10 contacted turnings.Decompressing groove 511 described in the utility model is provided with 9, and the interval is arranged on the described bearing dustproof cover.The width of the widest position of described decompressing groove 511 is 0.12.Compare with the bearing cap on the market, described decompressing groove 511 numbers have increased, but width has reduced.Or can effectively prevent dust dust cover 50 and bearing outer ring 10 distortion.Although the utility model has increased some manufacture difficulty, can make dust be difficult for entering bearing inside by decompressing groove 511.
During the bearing High Rotation Speed, can produce air suction, and described air suction direction P is parallel with X-axis.Bearing of the prior art, dust can be brought into to bearing inner by decompressing groove by air suction.
Decompressing groove 511 described in the utility model have first surface 512 with relative with first surface 512 second 513, first surface 512 and second 513 space that encloses are exactly decompressing groove 511, described second vertical with bearing centre axle X, the angle of described first surface and second formation is 35 °～45 °.So just make opening and the air suction direction P of decompressing groove 511 have larger angle, thereby when the bearing High Rotation Speed, avoid dust under the effect of air suction, to enter bearing inside by the opening of decompressing groove 511.The angle of described first surface and second formation is preferably 40 °, thereby so that decompressing groove 511 can prevent 10 distortion of dust cover 50 and bearing outer ring, not only can but also greatly reduce the probability that dust enters bearing.
Fig. 6 is that decompressing groove is at the structural representation of K direction, described decompressing groove 511 is cone shape hole, it is tabular also to be that described first surface 512 and second 513 are triangle, be provided with curved junction surface 514 between first surface 512 and second 514, and be that arc is connected between first surface 512 and the adjacent approximal surface; Also be that arc is connected between first surface 513 and the adjacent approximal surface.
Decompressing groove 511 is designed to cone shape hole, dust is entered as much as possible less, thereby increase the service life greatly.
Decompressing groove of the present utility model has been done good improvement, thereby enters bearing inside so that dust is difficult by decompressing groove.That is to say that the utility model minimizes the drawback of decompressing groove, do not affect the use function of decompressing groove, can prevent well that again dust from entering bearing inside.
Claims (3)
1. bearing dustproof cover, be used in the bearing, bearing comprises bearing outer ring, bearing inner race, ball between bearing outer ring and inner ring, described dust cover is set between bearing outer ring and the bearing inner race, it is characterized in that: described dust cover is provided with decompressing groove, this decompressing groove is located at the position that dust cover matches with bearing outer ring, described decompressing groove have first surface with relative with described first surface second, described second vertical with bearing centre axle X, the angle of described first surface and second formation is 35 °～45 °, described decompressing groove (511) is provided with 9, and the interval is arranged on the described bearing dustproof cover, the width of the widest position of described decompressing groove (511) is 0.1～0.14mm, the tapered shape of described decompressing groove.
2. bearing dustproof cover as claimed in claim 1, it is characterized in that: described decompressing groove is located at the turning that dust cover matches with bearing outer ring.
3. bearing dustproof cover as claimed in claim 1 or 2 is characterized in that: the angle between described first surface and second is 40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202881819U CN202674035U (en) | 2012-06-19 | 2012-06-19 | Dust cover of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202881819U CN202674035U (en) | 2012-06-19 | 2012-06-19 | Dust cover of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674035U true CN202674035U (en) | 2013-01-16 |
Family
ID=47494942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202881819U Expired - Fee Related CN202674035U (en) | 2012-06-19 | 2012-06-19 | Dust cover of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705375A (en) * | 2012-06-19 | 2012-10-03 | 宁波摩根轴承有限公司 | Dust cover for bearing |
-
2012
- 2012-06-19 CN CN2012202881819U patent/CN202674035U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705375A (en) * | 2012-06-19 | 2012-10-03 | 宁波摩根轴承有限公司 | Dust cover for bearing |
| CN102705375B (en) * | 2012-06-19 | 2016-01-13 | 宁波摩盛轴承有限公司 | A kind of bearing 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: 20130116 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |