CN104806715A - Tension roller with sealing element - Google Patents
Tension roller with sealing element Download PDFInfo
- Publication number
- CN104806715A CN104806715A CN201510161672.5A CN201510161672A CN104806715A CN 104806715 A CN104806715 A CN 104806715A CN 201510161672 A CN201510161672 A CN 201510161672A CN 104806715 A CN104806715 A CN 104806715A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- seat
- bearing
- sealing
- tension arms
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/181—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings for plastic packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
Abstract
The invention discloses a tension roller with a sealing element. The tension roller comprises a plummer mandrel, a tension arm, an oilless bearing, a spring a, wheel body, a bearing and a screw, wherein one end of the tension arm is rotationally sleeved on the plummer mandrel, the oilless bearing is arranged between the plummer mandrel and the tension arm, and the bearing is arranged in the wheel body and is fastened on another end of the tension arm through a screw; a mounting gap is formed in the top between the plummer mandrel and the tension arm and is internally provided with a sealing component, the sealing component comprises a plastic gasket, an injection molding cushion block and a rubber seal ring which are closely adhered from bottom to top, and the wheel body is provided with a seal cover and the seal cover is closely propped against the upper end of the bearing. The tension roller with the sealing element provided by the invention in reasonable and simple structure and good in leakproofness, is capable of preventing moisture and dust from entering the oilless bearing and the bearing in the wheel body well, thereby being beneficial for improving the operating stability and prolonging the service life at the same time.
Description
Technical field
The present invention relates to auto parts machinery field, be specifically related to a kind of expansion tightening wheel with Sealing.
Background technique
Along with improving constantly of automotive performance, also more and more higher to the requirement of auto parts machinery, automobile tension wheel is as the vitals in motor car engine, play vital effect to the function of motor and the performance of performance, people also require to have good travelling comfort while improving the security requirement of automobile.So just require that the running of the accessory of automobile is stable flexibly, rotating speed is fast, noise is low.Tradition expansion tightening wheel can comprise mandrel of usheing to seat usually, tension arms, oilless bearing, spring, wheel body, bearing and screw rod, tension arms one end rotating sleeve is located at and is usherd to seat on mandrel, being arranged at without wick axle ushers to seat between mandrel and tension arms, spring is arranged at ushers to seat between mandrel and tension arms, bearing to be installed in wheel body and to be anchored on the tension arms the other end by screw rod, but, in prior art, tension arms is all poor with the sealing that coordinates between mandrel and wheel body of usheing to seat respectively, make moisture, dust is easy to enter in oilless bearing and bearing, expansion tightening wheel working stability will be affected, its working life will be shortened simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple, good airproof performance rational in infrastructure, greatly can improve working stability, be conducive to the expansion tightening wheel of the band Sealing increased the service life simultaneously.
In order to solve the problem existing for background technique, present invention employs following technological scheme: a kind of expansion tightening wheel with Sealing, comprise mandrel of usheing to seat, tension arms, oilless bearing, spring, wheel body, bearing and screw rod, described tension arms one end rotating sleeve is located at and is usherd to seat on mandrel, described being arranged at without wick axle is usherd to seat between mandrel and tension arms, described spring is arranged at ushers to seat between mandrel and tension arms, described bearing to be installed in wheel body and to be anchored on the tension arms the other end by screw rod, installation gap is formed on described top of usheing to seat between mandrel and tension arms, black box is provided with in described installation gap, sealing assembly comprises the plastic washer fitted tightly from the bottom to top, injection moulding cushion block and rubber seal, described wheel body is provided with a sealing cover and sealing cover tight abutment in bearing upper end.
By adopting above-mentioned technological scheme, the expansion tightening wheel of band Sealing of the present invention is by being provided with black box usheing to seat in the installation gap between mandrel and tension arms, on wheel body, be provided with a sealing cover simultaneously, thus good waterproof and dustproof effect can be played, to avoid moisture, dust enters into oilless bearing and in the bearing of wheel body, greatly can improve the working stability of expansion tightening wheel, be conducive to extending its working life simultaneously.
The further setting of the present invention: the outer wall tight abutment of described plastic washer is in the inwall of tension arms, the inwall tight abutment of described injection moulding cushion block is in the outer wall of mandrel of usheing to seat, the inside and outside wall of described rubber seal pushes against the inwall of outer wall in mandrel of usheing to seat and tension arms respectively, and the outer wall of described rubber seal is by being provided with inserted part and injection moulding cushion block tight clamping fit.
By adopting above-mentioned technological scheme, thus be conducive to improving the sealing coordinated between mandrel and tension arms of usheing to seat further, and rubber seal can make the installation of whole black box more firm by the tight clamping fit of inserted part and injection moulding cushion block, produce to avoid black box the phenomenon loosened.
The further setting of the present invention: described screw rod is through being provided with packing ring in sealing cover described screw head and sealing cover.
By adopting above-mentioned technological scheme, thus the installation of sealing cover can be made more firm, and when packing ring can avoid screw rod to screw, cause the scratching of sealing cover.
The further setting of the present invention: described in the usher to seat arranged outside of mandrel have annular arm and described annular arm is sticked in tensioning wall bottom side and forms the annular housing of sealing, described spring fitting is in described annular housing.
By adopting above-mentioned technological scheme, the formation of annular housing can play dust-proof effect, thus the installation can removing dust-proof cover from is arranged, and is conducive to simplifying expansion tightening wheel structure further, makes the installation of spring more firm simultaneously.
The further setting of the present invention: be provided with spring seat in described annular housing, described spring fitting on spring seat, and is arranged with a latch closure between described spring and spring seat.
By adopting above-mentioned technological scheme, the setting of spring seat can make the installation of spring more stable, and latch closure can avoid the situation producing deflection when spring-compressed, reset, makes it play better performance.
Beneficial effect of the present invention is: expansion tightening wheel simple, the good airproof performance rational in infrastructure of band Sealing of the present invention, can be good at avoiding moisture, dust enters into oilless bearing and in the bearing of wheel body, be conducive to the working stability greatly improving expansion tightening wheel, be conducive to extending its working life simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of expansion tightening wheel with Sealing of the present invention.
Embodiment
In order to make content of the present invention more clear, below in conjunction with embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of expansion tightening wheel with Sealing of the embodiment of the present invention, comprise mandrel 1 of usheing to seat, tension arms 2, oilless bearing 3, spring 4, wheel body 5, bearing 6 and screw rod 7, tension arms 2 one end rotating sleeve is located at and is usherd to seat on mandrel 1, being arranged at without wick axle 3 ushers to seat between mandrel 1 and tension arms 2, spring 4 is arranged at ushers to seat between mandrel 1 and tension arms 2, bearing 6 to be installed in wheel body 5 and to be anchored on tension arms 2 the other end by screw rod 7, wherein, installation gap 8 is formed on the top of usheing to seat between mandrel 1 and tension arms 2, and be provided with black box in installation gap 8, sealing assembly comprises the plastic washer 9 fitted tightly from the bottom to top, injection moulding cushion block 10 and rubber seal 11, further, wheel body 5 is provided with a sealing cover 12 and sealing cover 12 tight abutment in bearing 6 upper end, the expansion tightening wheel of this band Sealing by being provided with black box in the installation gap 8 of usheing to seat between mandrel 1 and tension arms 2, on wheel body 5, be provided with a sealing cover 12 simultaneously, thus good waterproof can be played, dust-proof effect, to avoid moisture, dust enters in the bearing 6 of oilless bearing 3 and wheel body 5, greatly can improve the working stability of expansion tightening wheel, be conducive to extending its working life simultaneously.
In the present embodiment, the outer wall tight abutment of plastic washer 9 is in the inwall of tension arms 2, the inwall tight abutment of injection moulding cushion block 10 is in the outer wall of mandrel 1 of usheing to seat, and the inside and outside wall of rubber seal 11 pushes against the inwall of outer wall in mandrel 1 of usheing to seat and tension arms 2 respectively, and the outer wall of rubber seal 11 is by being provided with inserted part 111 and injection moulding cushion block 10 tight clamping fit, thus be conducive to improving the sealing of usheing to seat and coordinating between mandrel 1 and tension arms 2 further, and rubber seal 11 can make the installation of whole black box more firm by inserted part 111 and the tight clamping fit of injection moulding cushion block 10, the phenomenon loosened is produced to avoid black box.
In the present embodiment, screw rod 7 through being provided with packing ring 13 in sealing cover 12 screw rod 7 head and sealing cover 12, thus can make the installation of sealing cover 12 more firm, and causes the scratching of sealing cover 12 when packing ring 13 can avoid screw rod 7 to screw.
In the present embodiment, the arranged outside of mandrel 1 of usheing to seat has annular arm 101 and annular arm 101 is sticked in tensioning wall 2 bottom side and forms the annular housing 14 of sealing, spring 4 is installed in annular housing 14, the formation of annular housing 14 can play dust-proof effect, thus the installation can removing dust-proof cover from is arranged, be conducive to simplifying expansion tightening wheel structure further, make the installation of spring 4 more firm simultaneously.
In the present embodiment, spring seat 15 is provided with in annular housing 14, spring 4 is installed on spring seat 15, and between spring 4 and spring seat 15, be arranged with a latch closure 16, the setting of spring seat 15 can make the installation of spring 4 more stable, and latch closure 16 can avoid spring 4 to compress, produce the situation of deflection when resetting, it is made to play better performance.
Claims (5)
1. the expansion tightening wheel with Sealing, comprise mandrel of usheing to seat, tension arms, oilless bearing, spring, wheel body, bearing and screw rod, described tension arms one end rotating sleeve is located at and is usherd to seat on mandrel, described being arranged at without wick axle is usherd to seat between mandrel and tension arms, described spring is arranged at ushers to seat between mandrel and tension arms, described bearing to be installed in wheel body and to be anchored on the tension arms the other end by screw rod, it is characterized in that: described in usher to seat top between mandrel and tension arms form installation gap, black box is provided with in described installation gap, sealing assembly comprises the plastic washer fitted tightly from the bottom to top, injection moulding cushion block and rubber seal, described wheel body is provided with a sealing cover and sealing cover tight abutment in bearing upper end.
2. a kind of expansion tightening wheel with Sealing according to claim 1, it is characterized in that: the outer wall tight abutment of described plastic washer is in the inwall of tension arms, the inwall tight abutment of described injection moulding cushion block is in the outer wall of mandrel of usheing to seat, the inside and outside wall of described rubber seal pushes against the inwall of outer wall in mandrel of usheing to seat and tension arms respectively, and the outer wall of described rubber seal is by being provided with inserted part and injection moulding cushion block tight clamping fit.
3. a kind of expansion tightening wheel with Sealing according to claim 1, is characterized in that: described screw rod is through being provided with packing ring in sealing cover described screw head and sealing cover.
4. a kind of expansion tightening wheel with Sealing according to claim 1, it is characterized in that: described in the usher to seat arranged outside of mandrel have annular arm and described annular arm is sticked in tensioning wall bottom side and forms the annular housing of sealing, described spring fitting is in described annular housing.
5. a kind of expansion tightening wheel with Sealing according to claim 4, is characterized in that: be provided with spring seat in described annular housing, and described spring fitting on spring seat, and is arranged with a latch closure between described spring and spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161672.5A CN104806715A (en) | 2015-04-07 | 2015-04-07 | Tension roller with sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161672.5A CN104806715A (en) | 2015-04-07 | 2015-04-07 | Tension roller with sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806715A true CN104806715A (en) | 2015-07-29 |
Family
ID=53691811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510161672.5A Pending CN104806715A (en) | 2015-04-07 | 2015-04-07 | Tension roller with sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253495A (en) * | 2017-08-08 | 2017-10-17 | 中信重工开诚智能装备有限公司 | A kind of caterpillar type robot automatic tension device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668863A (en) * | 2002-07-18 | 2005-09-14 | 戴科产品有限责任公司 | Belt tensioner with integral damping |
| CN101107461A (en) * | 2005-01-20 | 2008-01-16 | 戴科产品有限责任公司 | Belt tensioner |
| CN201116590Y (en) * | 2007-07-13 | 2008-09-17 | 上海振华轴承总厂 | Automatic belt tension pulley device with multiple damping |
| CN201416640Y (en) * | 2009-06-18 | 2010-03-03 | 青岛泰德汽车轴承有限责任公司 | Automobile engine tension pulley and idle pulley anti- muddy-water device |
| CN201934602U (en) * | 2011-03-23 | 2011-08-17 | 浙江庆源车业部件有限公司 | Generator belt tensioning wheel assembly of diesel vehicle |
| CN102869899A (en) * | 2010-05-03 | 2013-01-09 | 谢夫勒科技股份两合公司 | Clamping device |
| CN204592181U (en) * | 2015-04-07 | 2015-08-26 | 温州天纳福汽车轴承股份有限公司 | A kind of expansion tightening wheel with Sealing |
-
2015
- 2015-04-07 CN CN201510161672.5A patent/CN104806715A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668863A (en) * | 2002-07-18 | 2005-09-14 | 戴科产品有限责任公司 | Belt tensioner with integral damping |
| CN101107461A (en) * | 2005-01-20 | 2008-01-16 | 戴科产品有限责任公司 | Belt tensioner |
| CN201116590Y (en) * | 2007-07-13 | 2008-09-17 | 上海振华轴承总厂 | Automatic belt tension pulley device with multiple damping |
| CN201416640Y (en) * | 2009-06-18 | 2010-03-03 | 青岛泰德汽车轴承有限责任公司 | Automobile engine tension pulley and idle pulley anti- muddy-water device |
| CN102869899A (en) * | 2010-05-03 | 2013-01-09 | 谢夫勒科技股份两合公司 | Clamping device |
| CN201934602U (en) * | 2011-03-23 | 2011-08-17 | 浙江庆源车业部件有限公司 | Generator belt tensioning wheel assembly of diesel vehicle |
| CN204592181U (en) * | 2015-04-07 | 2015-08-26 | 温州天纳福汽车轴承股份有限公司 | A kind of expansion tightening wheel with Sealing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253495A (en) * | 2017-08-08 | 2017-10-17 | 中信重工开诚智能装备有限公司 | A kind of caterpillar type robot automatic tension device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |