CN204175806U - A kind of automobile tension pulley bearing - Google Patents
A kind of automobile tension pulley bearing Download PDFInfo
- Publication number
- CN204175806U CN204175806U CN201420595828.1U CN201420595828U CN204175806U CN 204175806 U CN204175806 U CN 204175806U CN 201420595828 U CN201420595828 U CN 201420595828U CN 204175806 U CN204175806 U CN 204175806U
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- CN
- China
- Prior art keywords
- bearing
- bearing body
- dust cover
- mandrel
- tension pulley
- 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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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to technical field of bearings, is specifically a kind of automobile tension pulley bearing.The technical solution adopted in the utility model is: a kind of automobile tension pulley bearing, include bearing body, mandrel and outer wheel, described mandrel is plugged in the inner ring of bearing body, outer wheel is fixed on the outer ring of bearing body, the inner chamber two-port of described bearing body is provided with rubber seal, the axial two ends of bearing body all keep off the dust cover being provided with rigid material and making, described dust cover includes the annular door body blocked outside bearing body, and be positioned at the assembly department of annular door body inner circle, described dust cover is fixedly set on mandrel through assembly department and rotates with mandrel, annular door body radial outer end extends radially outwardly and crosses bearing body lumen port.The utility model compared with prior art, has double sealing effect, sealing and dustproof and anti-muddy water effective, use reliable, the advantage of long service life.
Description
Technical field
The utility model relates to technical field of bearings, is specifically a kind of automobile tension pulley bearing.
Background technique
Belt stretcher in existing car transmissions mainly comprises Idle wheel, drivign belt etc., wherein Idle wheel is fixed on tension wheel shaft bearing, it acts on the slack list of drivign belt, make the tension force that drivign belt keeps certain, thus ensure the normal work of car transmissions, present automobile tension pulley bearing is primarily of a deep groove ball bearing, mandrel and outer wheel composition, and the inner ring of deep groove ball bearing is fixed on mandrel, and outer wheel is fixed on the outer ring of deep groove ball bearing.
Automobile tension pulley bearing is arranged in automobile engine system, and its working environment is relatively severe, dust and muddy water more; Existing tension wheel shaft bearing, generally only has seal ring one resealing, after automobile running certain hour, tension wheel shaft bearing be easily subject to dust, mud intrusion and damage, have impact on motor car engine drive wheel lifetime of system.
For improving bearing seal effect, in some bearings, there is the double-sealing device of dust cover and seal ring formation, but its dust cover is assemblied in the lumen port of bearing, dust cover is arranged on bearing inner race, the radial cylindrical of dust cover extends to bearing outer ring, but reserves free gap with bearing outer ring; Due to the limited space of the bearing body inside of tension wheel shaft bearing, there is dust cover assembling inconvenience, easy and bearing outer ring causes interference, cause bearing to use unreliable, and discomfort is used in tension wheel shaft bearing; Meanwhile, dust cover and bearing outer ring have gap diametrically, the work under bad environment of tension wheel shaft bearing, therefore under this design, muddy water easily enters from gap, and on dust cover, muddy water is easily thrown to gap location and enters Bearing inner, there is the defect of dust-proof effect difference; Double sealing structure on these other bearings existing is not also suitable on tension wheel shaft bearing.Therefore existing tension wheel shaft bearing still retains the resealing design that seal ring is formed.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of with dust cover, and dust cover is installed and reasonable in design, sealing and dustproof, good waterproof performance, uses reliable, the automobile tension pulley bearing of long service life.
For achieving the above object, the utility model provides following technological scheme: a kind of automobile tension pulley bearing, include bearing body, mandrel and outer wheel, described mandrel is plugged in the inner ring of bearing body, outer wheel is fixed on the outer ring of bearing body, the inner chamber two-port of described bearing body is provided with rubber seal, it is characterized in that: the axial two ends of described bearing body all keep off the dust cover being provided with rigid material and making, described dust cover includes the annular door body blocked outside bearing body, and be positioned at the assembly department of annular door body inner circle, described dust cover is fixedly set on mandrel through assembly department and rotates with mandrel, annular door body radial outer end extends radially outwardly and crosses bearing body lumen port.
By adopting technique scheme, at bearing body axial two ends, dust cover is set, double seal is formed with seal ring in bearing body lumen port, greatly improve sealability, dust cover is arranged on mandrel, and be positioned at outside the axial two ends of bearing body, the assembly space of dust cover is large, the assembling of dust cover and arranging conveniently, dust cover can not cause interference with bearing body Internal and external cycle; Annular door body radial outer end extends radially outwardly and crosses bearing body lumen port simultaneously, realize dust cover to block completely outside bearing body, dust-proof effective with gear muddy water, and dust cover is when rotating with mandrel, under centrifugal action, effectively the muddy water on dust cover is thrown away bearing, thus avoid muddy water to assemble on dust cover, reach good dust-proof and gear muddy water effect.
The utility model is set to further: described dust cover body radial outer end has axially extended to form annular rib towards near bearing body direction.
By adopting technique scheme, annular rib realizes blocking diametrically, improves the dust-proof of dust cover and gear muddy water effect further, improves sealability.
The utility model is set to further: described dust cover body inner round portion is axially arranged towards away from bearing body one end projection.
By adopting technique scheme, the space between dust cover and bearing body can be expanded, the cooperation of convenient dust-proofing lid and assembling.
The utility model is set to further: the assembly department of described dust cover is axially towards the installation sleeve deviating from bearing body one end and extend to form.
By adopting technique scheme, make the assembling of dust cover more solid and reliable.
The utility model is set to further: described outer wheel is one-body molded with bearing outer ring.
By adopting technique scheme, tension wheel shaft bearing work is more reliable and stable.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment automobile tension pulley bearing structure schematic diagram;
Fig. 2 is the utility model specific embodiment dustproof cover structure schematic diagram.
Embodiment
See accompanying drawing 1 and accompanying drawing 2, a kind of automobile tension pulley bearing disclosed in the utility model, includes bearing body 1, mandrel 2 and an outer wheel 3; Bearing body 1 includes inner ring 11, outer ring 12 and rolling element 13, in the inner chamber 14 of rolling element 13 between outer ring 12 and inner ring 11; Described mandrel 2 is plugged in the inner ring 11 of bearing body 1, an outer wheel 3 is fixed on the outer ring 12 of bearing body 1, in this specific embodiment, a described outer wheel 3 is one-body molded with bearing outer ring 12, make the connection more firm stable of outer wheel and bearing body like this, thus improve the reliability of tension wheel shaft bearing.Inner chamber 14 two-port of described bearing body 1 is provided with rubber seal 4.The described axial two ends of bearing body 1 all keep off the dust cover 5 being provided with rigid material and making, and namely all there is a dust cover 5 on bearing body 1 both sides; Described dust cover 5 includes the annular door body 51 blocked outside bearing body 1, and is positioned at the assembly department 52 of annular door body 51 inner circle; Described dust cover 5 is fixedly set on mandrel 2 through assembly department 52 and rotates with mandrel 2; annular door body 51 radial outer end extends radially outwardly and crosses bearing body 1 inner chamber 14 port; namely completely inner chamber 14 port of bearing body 1 is blocked, completely protection is blocked to rubber seal 4.Such formation double seal, improves sealability greatly; Dust cover is arranged on mandrel, and be positioned at outside the axial two ends of bearing body, the assembly space of dust cover is large, the assembling of dust cover and arranging conveniently, and dust cover can not cause interference with bearing body Internal and external cycle; Annular door body radial outer end extends radially outwardly and crosses bearing body lumen port simultaneously, realize dust cover to block completely outside bearing body, dust-proof effective with gear muddy water, and dust cover is when rotating with mandrel, under centrifugal action, effectively the muddy water on dust cover is thrown away bearing, thus avoid muddy water to assemble on dust cover, reach good dust-proof and gear muddy water effect.
For further improving the protection of dust cover to bearing body, described dust cover body 51 radial outer end has axially extended to form annular rib 53 towards near bearing body 1 direction.So annular rib 53 realizes blocking diametrically, realizes the radial clearance made up to a certain extent between dust cover 5 radial outer end and bearing body 1, improves the dust-proof of dust cover 5 and gear muddy water effect further, improves sealability.
In this specific embodiment, described dust cover body 51 inner round portion is axially arranged towards away from bearing body 1 one end projection.The space between dust cover 5 and bearing body 1 can be expanded, the cooperation of convenient dust-proofing lid and assembling.
For making the assembling of dust cover more solid and reliable, the assembly department 52 of described dust cover 5 is axially towards the installation sleeve deviating from bearing body 1 one end and extend to form.
Claims (5)
1. an automobile tension pulley bearing, include bearing body, mandrel and outer wheel, described mandrel is plugged in the inner ring of bearing body, outer wheel is fixed on the outer ring of bearing body, the inner chamber two-port of described bearing body is provided with rubber seal, it is characterized in that: the axial two ends of described bearing body all keep off the dust cover being provided with rigid material and making, described dust cover includes the annular door body blocked outside bearing body, and be positioned at the assembly department of annular door body inner circle, described dust cover is fixedly set on mandrel through assembly department and rotates with mandrel, annular door body radial outer end extends radially outwardly and crosses bearing body lumen port.
2. automobile tension pulley bearing according to claim 1, is characterized in that: described dust cover body radial outer end has axially extended to form annular rib towards near bearing body direction.
3. automobile tension pulley bearing according to claim 2, is characterized in that: described dust cover body inner round portion is axially arranged towards away from bearing body one end projection.
4. automobile tension pulley bearing according to claim 1 or 2 or 3, is characterized in that: the assembly department of described dust cover is axially towards the installation sleeve deviating from bearing body one end and extend to form.
5. automobile tension pulley bearing according to claim 1, is characterized in that: described outer wheel is one-body molded with bearing outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595828.1U CN204175806U (en) | 2014-10-15 | 2014-10-15 | A kind of automobile tension pulley bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595828.1U CN204175806U (en) | 2014-10-15 | 2014-10-15 | A kind of automobile tension pulley bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175806U true CN204175806U (en) | 2015-02-25 |
Family
ID=52564617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595828.1U Expired - Fee Related CN204175806U (en) | 2014-10-15 | 2014-10-15 | A kind of automobile tension pulley bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175806U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090157A (en) * | 2016-08-31 | 2016-11-09 | 安徽全柴动力股份有限公司 | A kind of transition wheel mechanism for diesel engine tightening belt |
| CN108561420A (en) * | 2018-02-08 | 2018-09-21 | 无锡诚石轴承有限公司 | A kind of weaving machine bearing |
| CN112622612A (en) * | 2020-12-24 | 2021-04-09 | 奇瑞汽车股份有限公司 | Fixing support for automobile driving shaft |
-
2014
- 2014-10-15 CN CN201420595828.1U patent/CN204175806U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090157A (en) * | 2016-08-31 | 2016-11-09 | 安徽全柴动力股份有限公司 | A kind of transition wheel mechanism for diesel engine tightening belt |
| CN108561420A (en) * | 2018-02-08 | 2018-09-21 | 无锡诚石轴承有限公司 | A kind of weaving machine bearing |
| CN112622612A (en) * | 2020-12-24 | 2021-04-09 | 奇瑞汽车股份有限公司 | Fixing support for automobile driving shaft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20161015 |