CN103899654B - U-shaped combined bearing pedestal sealing device for waterproof carrier roller - Google Patents
U-shaped combined bearing pedestal sealing device for waterproof carrier roller Download PDFInfo
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- CN103899654B CN103899654B CN201410153500.9A CN201410153500A CN103899654B CN 103899654 B CN103899654 B CN 103899654B CN 201410153500 A CN201410153500 A CN 201410153500A CN 103899654 B CN103899654 B CN 103899654B
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- sealing
- ring
- bearing pedestal
- bearing
- protection cover
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a U-shaped combined bearing pedestal sealing device for a waterproof carrier roller. The U-shaped combined bearing pedestal sealing device comprises a core shaft and a barrel body, wherein a protection cover is pressed on the core shaft; a bearing pedestal sleeving the core shaft is adapted between the protection cover and the barrel body; a first sealing part is formed between one end, which is in contact with the protection cover, of the bearing pedestal and the core shaft in sequence through a U-shaped sealing ring and a ring type lip rubber ring; the lip of the ring type lip rubber ring is in tight contact with the U-shaped sealing ring; the lip is coated with lubricating grease; one end, which is far away from the protection cover, of the bearing pedestal is in contact with the core shaft through a bottom seal to form a second sealing part; the core shaft in the bearing pedestal is sleeved with a conical roller bearing; a bearing check ring is arranged between the conical roller bearing and the protection cover. The U-shaped combined bearing pedestal sealing device disclosed by the invention has the beneficial effects that the protection cover and the bearing pedestal are combined to seal the carrier roller, so that the carrier roller friction resistance is reduced, water and dust are thoroughly prevented from entering a channel, so that a sealing cavity is formed; an annular supporting component can further enhance the sealing performance of the second sealing part.
Description
Technical field
The present invention relates to sealing device, more particularly to waterproof carrier roller U-shaped built-up shaft bearing sealing device.
Background technology
Carrying roller is that one of critical piece of transmission is carried on ribbon conveyer, is typically installed at its two ends by special steel pipe
There are bearing and support member, then have an axle to be fixed on support body, belt on carrying roller does rolling friction and works.Its quality
Quality directly affects the service life of ribbon conveyer.The sealing device of prior art middle idler roller is usually non-contacting seal
Part, and non-contacting seal part itself does not have sealing property, can only rely on
Fat is reaching the purpose of sealing；But conveyer carrying roller oils and fatss in rotary course also can produce fortune with non-contacting seal part
Dynamic, oils and fatss can produce shearing friction heat in motor process, cause oils and fatss temperature to raise, and oils and fatss can cause oil when temperature is too high
Oil, fat in fat is separated, so that oils and fatss lose lubrication and sealing function, shortens the service life of carrying roller.On the other hand exist
Water proofing property is poor, and when bearing premature failure is caused after carrying roller water inlet, carrying roller service life is low.
The content of the invention
The technical problem to be solved in the present invention is that the existing non-contacting seal sealing property for carrying roller is low, uses the longevity
Life is short, provides a kind of waterproof carrier roller U-shaped built-up shaft bearing sealing device for this.
The technical scheme is that：Waterproof carrier roller U-shaped built-up shaft bearing sealing device, it includes heart axle and cylinder, institute
State and on heart axle, be pressed with protective cover, between the protective cover and cylinder, be fitted with the bearing block being socketed on heart axle, the bearing
U-shaped sealing ring is passed sequentially through between one end for contact with protective cover of seat and heart axle and ring type lip rubber ring forms the first sealing
Portion, lip and the U-shaped sealing ring of the ring type lip rubber ring are in close contact, and lubricant grease, the axle are scribbled on the lip
Bearing forms second sealing by bottom sealing and mandrel contacts away from one end of protective cover, on the heart axle inside the bearing block
Taper roll bearing is arranged with, between the taper roll bearing and protective cover, end ring is provided with.
The sealing of bottom described in such scheme is the exoskeletal dust ring of J-type.
The improvement of such scheme is to be provided with annular support member between the bottom sealing and heart axle.
The invention has the beneficial effects as follows protective cover and bearing block combination sealing carrying roller, reduce carrying roller frictional resistance, thoroughly every
Absolutely the entrance passage of water and dust, forms the cavity of sealing, and this structure can more efficiently prevent from the intrusion of water and dust,
Play a part of to protect bearing, the architecture is used under conditions of work under bad environment, extend carrying roller making without maintenance
With the life-span, the number of parts of employing is few, and cost is relatively low；The exoskeletal wiper seal function admirable of J-type, working life are high, friction
Resistance is little, has good self-lubricating property；Annular support member can further enhance the sealing property of the second sealing, reduce
The pressure that the exoskeletal dust ring of J-type is subject to, and reduce impact of the circular runout power of carrying roller to supporting roller sealing.
Description of the drawings
Fig. 1 is schematic diagram of the present invention；
In figure, 1, heart axle, 2, cylinder, 3, bearing block, 4, bottom sealing, 5, taper roll bearing, 6, shaft block ring, 7, U-shaped
Sealing ring, 8, ring type lip rubber ring, 9, protective cover, 10, annular support member.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention includes heart axle 1 and cylinder 2, on the heart axle, be pressed with protective cover 9, the protective cover and
The bearing block 3 being socketed on heart axle is fitted between cylinder, between one end that the bearing block is contacted with protective cover and heart axle according to
It is secondary that first sealing is formed by U-shaped sealing ring 7 and ring type lip rubber ring 8, the lip of the ring type lip rubber ring with it is U-shaped
Sealing ring is in close contact, and scribbles lubricant grease on the lip, the bearing block away from protective cover one end by bottom sealing 4 and
Mandrel contacts form the second sealing, and taper roll bearing 5, the taper roller are arranged with the heart axle inside the bearing block
End ring 6 is provided between bearing and protective cover.
3 interference of bearing block is fitted on cylinder 2 during installation, penetrates heart axle 1 and be pressed into bottom sealing 4, taper roller successively
Bearing 5, end ring 6, U-shaped sealing ring 7, and by the protective acoustic cover assembly for having assembled（8、9）Integral press mounting in roll body, ring type
Lip rubber ring 8 has super elastic structure, and contact surface is few, while grease is scribbled in three lips plays lubrication and seal effect,
Roller revolving resistance is little, saves production cost.
Preferably, the exoskeletal dust ring of J-type is selected in bottom sealing 4, and its sealing ring tightness can be excellent, and working life is high, moves
State pressure seal service life as compared traditional rubber sealing articles are high 5-10 times, reach as high as decades of times, under certain conditions can be with
The sealing matrix same life-span；Sealing ring frictional resistance is little, and kinematics and static friction power is equal, is 1/2-the 1/ of " 0 " shape rubber ring frictional force
4, " creeping " phenomenon moved under low speed, low pressure can be eliminated.Sealing ring high abrasion, has automatic elastic compensating after sealing surface wear
Function；The good self-lubricating property of sealing ring. Oilless Lubrication Seal in Petroleum Gas can be made.
In order to be further ensured that sealing effectiveness, preferably seal the bottom of at and annular support member 10, ring are provided with and heart axle between
The material of shape support member is preferably elastomeric material, on the one hand can improve the sealing property of the second sealing, on the other hand may be used
To reduce impact of the circular runout power of carrying roller to the second sealing, extend the service life of bottom sealing.
Claims (1)
1. waterproof carrier roller U-shaped built-up shaft bearing sealing device, it includes heart axle（1）And cylinder（2）, it is characterized in that on the heart axle
It is pressed with protective cover（9）, between the protective cover and cylinder, it is fitted with the bearing block being socketed on heart axle（3）, the bearing block
U-shaped sealing ring is passed sequentially through between the one end contacted with protective cover and heart axle（7）With ring type lip rubber ring（8）Form first close
Envelope portion, lip and the U-shaped sealing ring of the ring type lip rubber ring are in close contact, and lubricant grease is scribbled on the lip, described
Bearing block is sealed the bottom of by away from one end of protective cover（4）The second sealing is formed with mandrel contacts, inside the bearing block
Taper roll bearing is arranged with heart axle（5）, between the taper roll bearing and protective cover, it is provided with end ring（6）, it is described
Bottom sealing is the exoskeletal dust ring of J-type, is provided with annular support member between the bottom sealing and heart axle（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153500.9A CN103899654B (en) | 2014-04-17 | 2014-04-17 | U-shaped combined bearing pedestal sealing device for waterproof carrier roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153500.9A CN103899654B (en) | 2014-04-17 | 2014-04-17 | U-shaped combined bearing pedestal sealing device for waterproof carrier roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899654A CN103899654A (en) | 2014-07-02 |
| CN103899654B true CN103899654B (en) | 2017-05-03 |
Family
ID=50991168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410153500.9A Active CN103899654B (en) | 2014-04-17 | 2014-04-17 | U-shaped combined bearing pedestal sealing device for waterproof carrier roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899654B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257711A (en) * | 2015-09-23 | 2016-01-20 | 青岛恩普环保设备有限公司 | Bearing sealing device at tail of wet concrete separator |
| CN107021365A (en) * | 2017-06-01 | 2017-08-08 | 台州恒投工贸有限公司 | A kind of Super Long-axles torsion coil formula ship unloaders |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827344A (en) * | 1954-09-17 | 1958-03-18 | Meyer & Co | Bearing seals |
| DE2260686C3 (en) * | 1972-12-12 | 1978-06-29 | Pohlig-Heckel-Bleichert, Vereinigte Maschinenfabriken Ag, 5000 Koeln | Sealing of a rolling bearing |
| GB2194993B (en) * | 1986-09-10 | 1990-02-07 | Ha Rubber & Plastics | Contact seal |
| CN2361604Y (en) * | 1999-03-18 | 2000-02-02 | 张旭 | Roller for belt conveyer |
| CN1552613A (en) * | 2003-05-28 | 2004-12-08 | 上海高罗输送装备有限公司 | Idler bearing assembly |
| CN2815967Y (en) * | 2005-07-26 | 2006-09-13 | 董国柱 | High-precision bearing seat |
| CN202642755U (en) * | 2012-05-03 | 2013-01-02 | 中发电气（铜陵）海德精密工业有限公司 | Combined carrier roller seal device |
| CN203809519U (en) * | 2014-04-17 | 2014-09-03 | 中发电气（铜陵）海德精密工业有限公司 | U-shaped combination bearing sealing device of waterproof supporting roller |
-
2014
- 2014-04-17 CN CN201410153500.9A patent/CN103899654B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103899654A (en) | 2014-07-02 |
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Address after: 244000 Weisan Road, Tongling Economic and Technological Development Zone, Tongling City, Anhui Province Patentee after: Tongling Sanjia Jianxi Precision Industry Co.,Ltd. Address before: 244000 Weisan Road, Development Zone, Tongling City, Anhui Province Patentee before: ZHONGFA ELECTRICAL (TONGLING) HYDE PRECISION INDUSTRY Co.,Ltd. |
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