CN203809519U - U-shaped combination bearing sealing device of waterproof supporting roller - Google Patents
U-shaped combination bearing sealing device of waterproof supporting roller Download PDFInfo
- Publication number
- CN203809519U CN203809519U CN201420185390.XU CN201420185390U CN203809519U CN 203809519 U CN203809519 U CN 203809519U CN 201420185390 U CN201420185390 U CN 201420185390U CN 203809519 U CN203809519 U CN 203809519U
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- China
- Prior art keywords
- bearing
- ring
- axle
- sealing
- shaped
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- 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.)
- Withdrawn - After Issue
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- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a U-shaped combination bearing sealing device of a waterproof supporting roller. The U-shaped combination bearing sealing device of the waterproof supporting roller comprises a mandrel and a cylinder, wherein a protective cover is mounted on the mandrel in a pressing manner; a bearing seat which arranged on the mandrel in a sleeving manner is matched between the protective cover and the cylinder; a first sealing part is formed by that a U-shaped sealing ring and an annular lip rubber circle penetrate between the end, which is in contact with the protective cover, of the bearing seat and the mandrel in sequence; the lip of the annular lip rubber circle is in tight contact with the U-shaped sealing ring; lubricating grease is arranged on the lip in a coating manner; the end, far away from the protective cover, of the bearing seat is in the contact with the mandrel through a bottom seal to form a second sealing part; the mandrel in the bearing seat is sleeved with a tapered roller bearing; a bearing baffle ring is arranged between the tapered roller bearing and the protective cover. The U-shaped combination bearing sealing device of the waterproof supporting roller has the beneficial effects that the supporting roller is sealed by the combination of the protective cover and the bearing seat, so that the friction resistance of the supporting roller is reduced, an entrance channel of water and dust is completely isolated, and a sealed cavity is formed; the sealing performance of the second sealing part can be further enhanced by an annular supporting part.
Description
Technical field
The utility model relates to seal arrangement, relates in particular to waterproof carrier roller U-shaped built-up shaft bearing seal arrangement.
Background technique
Carrying roller is one of critical piece carrying on Belt Conveyors transmission, normally by special steel pipe, at its two ends, bearing and supporting element is installed, then has an axle to be fixed on support body, and belt is done rolling friction and worked on carrying roller.The quality of its quality directly affects the working life of Belt Conveyors.The seal arrangement of prior art middle idler roller is generally noncontact seal part, and noncontact seal part itself does not have sealability, can only rely in the space of noncontact seal part and add grease to reach the object of sealing; But grease also can be along with noncontact seal part produces motion in rotary course for conveyer carrying roller, grease can produce shearing friction heat in movement process, cause grease temperature to raise, grease can cause that when excess Temperature oil, the fat in grease is separated, thereby make grease lose lubricated and seal action, shorten the working life of carrying roller.Exist on the other hand water proofing property poor, after carrying roller water inlet, cause bearing premature failure, carrying roller is low working life.
Model utility content
The technical problems to be solved in the utility model is that the existing noncontact seal sealability for carrying roller is low, working life is short, and a kind of waterproof carrier roller U-shaped built-up shaft bearing seal arrangement is provided for this reason.
The technical solution of the utility model is: waterproof carrier roller U-shaped built-up shaft bearing seal arrangement, it comprises axle and cylindrical shell, in described axle, be pressed with protective housing, between described protective housing and cylindrical shell, adaptation has the bearing support in the axle of being socketed in, between one end that described bearing support contacts with protective housing and axle, by U-shaped seal ring and ring type lip rubber ring, form the first sealed department successively, the lip of described ring type lip rubber ring and U-shaped seal ring close contact, on described lip, scribble lubricant grease, described bearing support is sealed and is contacted formation the second sealed department with axle the end of by away from one end of protective housing, in the axle of described bearing support inside, be arranged with tapered roller bearing, between described tapered roller bearing and protective housing, be provided with end ring.
The sealing of the end 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 sealing of the described end and axle.
The beneficial effects of the utility model are protective housing and bearing support combination seal carrying roller, reduce carrying roller surface friction drag, thoroughly completely cut off the inlet passage of water and dust, form the cavity of sealing, this structure is the intrusion of anti-sealing and dust more effectively, play the effect of protection bearing, make that this structure is suitable to be used under the condition of work under bad environment, extend carrying roller without the working life of maintenance, the number of spare parts adopting is few, and cost is lower; The exoskeletal dust ring sealability of J type is good, and operating life is high, and surface friction drag is little, has good self-lubricating property; Annular support member can further strengthen the sealability of the second sealed department, reduces the pressure that the exoskeletal dust ring of J type is subject to, and the impact of the circular runout power that reduces carrying roller on supporting roller sealing.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
In figure, 1, axle, 2, cylindrical shell, 3, bearing support, 4, end sealing, 5, tapered roller bearing, 6, shaft block ring, 7, U-shaped seal ring, 8, ring type lip rubber ring, 9, protective housing, 10, annular support member.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the utility model comprises axle 1 and cylindrical shell 2, in described axle, be pressed with protective housing 9, between described protective housing and cylindrical shell, adaptation has the bearing support 3 in the axle of being socketed in, between one end that described bearing support contacts with protective housing and axle, by U-shaped seal ring 7 and ring type lip rubber ring 8, form the first sealed department successively, the lip of described ring type lip rubber ring and U-shaped seal ring close contact, on described lip, scribble lubricant grease, described bearing support seals 4 away from one end of protective housing the end of by and contacts with axle and form the second sealed department, in the axle of described bearing support inside, be arranged with tapered roller bearing 5, between described tapered roller bearing and protective housing, be provided with end ring 6.
During installation, bearing support 3 interference are fitted on cylindrical shell 2, penetrate axle 1 and be pressed into successively end sealing 4, tapered roller bearing 5, end ring 6, U-shaped seal ring 7, and by the protective acoustic cover assembly having assembled (8,9) integral press mounting in roll body, ring type lip rubber ring 8 has superelasticity structure, surface of contact is few, in three lips, scribble lubricating grease simultaneously and play lubrication and seal effect, roller revolving resistance is little, has saved cost of production.
Preferably, the exoskeletal dust ring of J type is selected in end sealing 4, and its sealing ring tightness can be good, operating life is high, the dynamic pressure seal operation life-span is higher 5-10 times than conventional rubber seal products, reaches as high as decades of times, under certain conditions can with sealing the same life-span of matrix; Seal ring surface friction drag is little, and dynamic and static frictional force equates, is 1/2-1/4 of " 0 " shape rubber ring frictional force, can eliminate " creeping " phenomenon of moving under low speed, low pressure.Seal ring high abrasion, has automatic elastic compensating function after sealing surface wear; The self-lubricating property that seal ring is good. can make Oilless Lubrication Seal in Petroleum Gas.
In order further to guarantee sealing effect, preferably between end sealing and axle, be provided with annular support member 10, the material of annular support member is preferably elastic material, can improve the sealability of the second sealed department on the one hand, the impact of the circular runout power that can reduce on the other hand carrying roller on the second sealed department, extends the working life of end sealing.
Claims (3)
1. waterproof carrier roller U-shaped built-up shaft bearing seal arrangement, it comprises axle (1) and cylindrical shell (2), it is characterized in that being pressed with in described axle protective housing (9), between described protective housing and cylindrical shell, adaptation has the bearing support (3) in the axle of being socketed in, between one end that described bearing support contacts with protective housing and axle, by U-shaped seal ring (7) and ring type lip rubber ring (8), form the first sealed department successively, the lip of described ring type lip rubber ring and U-shaped seal ring close contact, on described lip, scribble lubricant grease, described bearing support seals (4) away from one end of protective housing the end of by and contacts with axle and form the second sealed department, in the axle of described bearing support inside, be arranged with tapered roller bearing (5), between described tapered roller bearing and protective housing, be provided with end ring (6).
2. waterproof carrier roller U-shaped built-up shaft bearing seal arrangement as claimed in claim 1, is characterized in that the sealing of the described end is the exoskeletal dust ring of J type.
3. waterproof carrier roller U-shaped built-up shaft bearing seal arrangement as claimed in claim 1 or 2, is characterized in that being provided with annular support member (10) between the sealing of the described end and axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185390.XU CN203809519U (en) | 2014-04-17 | 2014-04-17 | U-shaped combination bearing sealing device of waterproof supporting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185390.XU CN203809519U (en) | 2014-04-17 | 2014-04-17 | U-shaped combination bearing sealing device of waterproof supporting roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809519U true CN203809519U (en) | 2014-09-03 |
Family
ID=51448276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185390.XU Withdrawn - After Issue CN203809519U (en) | 2014-04-17 | 2014-04-17 | U-shaped combination bearing sealing device of waterproof supporting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899654A (en) * | 2014-04-17 | 2014-07-02 | 中发电气（铜陵）海德精密工业有限公司 | U-shaped combined bearing pedestal sealing device for waterproof carrier roller |
-
2014
- 2014-04-17 CN CN201420185390.XU patent/CN203809519U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899654A (en) * | 2014-04-17 | 2014-07-02 | 中发电气（铜陵）海德精密工业有限公司 | U-shaped combined bearing pedestal sealing device for waterproof carrier roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20170503 |