CN204327983U - A kind of pivoting support lip-type packing - Google Patents
A kind of pivoting support lip-type packing Download PDFInfo
- Publication number
- CN204327983U CN204327983U CN201420789261.1U CN201420789261U CN204327983U CN 204327983 U CN204327983 U CN 204327983U CN 201420789261 U CN201420789261 U CN 201420789261U CN 204327983 U CN204327983 U CN 204327983U
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- China
- Prior art keywords
- lip
- pivoting support
- seal ring
- type packing
- ring body
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Abstract
The utility model discloses a kind of pivoting support lip-type packing, it comprises seal ring body, waist and lip, seal ring body, waist are connected with lip one, described seal ring body upper and lower sides is fixedly installed some hangnail portions, labial angle θ=105 ° of described lip, lip anterior angle is 35-45o and lip relief angle is 30-40o.A kind of pivoting support lip-type packing that the utility model proposes, good seal performance, has good oil resistance and weatherability, not easily deforms, the problem such as loose or dislocation, effectively protects pivoting support raceway, extends the pivoting support life-span.
Description
Technical field
The utility model belongs to pivoting support Sealing, particularly a kind of pivoting support lip-type packing.
Background technique
The raceway of pivoting support, built with rolling element and spacing block (or retainer), must have lubricating grease to keep lubrication in raceway when pivoting support normally works, due to the structural feature of pivoting support itself, the outside foreign matter such as water, dust easily enters raceway.The seal ring of pivoting support should possess the function stoping the foreign material such as water, dust of the lubricating grease seepage in raceway and external environment condition to invade raceway; certain protective action can be played to raceway, steel ball, spacing block (or retainer), extend the working life of pivoting support.Existing seal ring due to itself structure single, sealing effect is not good, yielding, work a period of time after and combines between to be sealed relax, easily come off, working life is shorter.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of pivoting support lip-type packing, improves the sealability of to be sealed, and not yielding, seals position be combined closely with to be sealed, extends seal ring working life.
For achieving the above object, a kind of pivoting support lip-type packing that the utility model proposes, it comprises seal ring body, waist and lip, seal ring body, waist is connected with lip one, described seal ring body upper and lower sides is fixedly installed some hangnail portions, be combined closely to make seal ring with pivoting support seal groove, not easily loose or dislocation, labial angle θ=105 ° of described lip, lip and surface of contact form lip anterior angle and lip relief angle, be that sealability is optimum in this case for 35-45o(for making assembling posterior lip anterior angle be 30-40o and lip relief angle), design, during manufacture, lip anterior angle is 35-45o and lip relief angle is 30-40o.
When between the described hangnail portion being fixedly installed on seal ring body upper and lower sides and seal ring body, obtuse angle is 150 °, acute angle is when being 45 °, described seal ring and pivoting support seal groove binding ability best.
Described a kind of pivoting support lip-type packing also comprises reinforcing line, this reinforcing line is the synthetic line of Φ=0.5-1mm, described reinforcing line is arranged between seal ring body and waist, deforms when expanding with heat and contract with cold or assemble and pull to prevent described seal ring.
Described a kind of pivoting support lip-type packing material adopts nitrile butadiene rubber, and oil resistance is fabulous, and wear resistance is higher, and heat resistance is better, and bonding force is strong.
A kind of pivoting support lip-type packing that the utility model proposes, good seal performance, has good oil resistance and weatherability, not easily deforms, the problem such as loose or dislocation, effectively protects pivoting support raceway, extends the pivoting support life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pivoting support lip-type packing that the utility model proposes.
Fig. 2 is the schematic diagram that a kind of pivoting support lip-type packing that the utility model proposes is arranged in pivoting support.
Fig. 3 is a kind of pivoting support lip-type packing lip anterior angle, the lip relief angle change schematic diagram that before and after assembling, the utility model proposes.
Embodiment
See accompanying drawing, a kind of pivoting support lip-type packing, it comprises seal ring body 1, waist 3 and lip 4, seal ring body, waist are connected with lip one, described seal ring body upper and lower sides is fixedly installed some hangnail portions 2, is combined closely, not easily loose or dislocation to make seal ring with pivoting support seal groove, labial angle θ=105 ° of described lip, lip and surface of contact form lip anterior angle and lip relief angle, for making assembling posterior lip anterior angle
α ＇for 30-40o and lip relief angle
β ＇for 35-45o(, sealability is optimum in this case), when design, manufacture, lip anterior angle α is 35-45o and lip relief angle β is 30-40o.Seal ring before assembly after deformation more complicated, the angle of its anterior lip anterior angle α angle and lip relief angle β roughly situation of change is that lip anterior angle is become from α
α ＇, lip relief angle is become from β
β ＇, prove
α ＇< α, lip relief angle
β ＇> β, according to the design code of rotary shaft lip seal
[5]and in conjunction with the performance requirement of pivoting support seal ring, after the L shape seal ring assembling of nitrile butadiene rubber material, α ＇ sealing effect when 30-40 °, β ＇ is between 35-45 ° is best.For the seal ring of other materials, the different physical propertys according to material can make the appropriate adjustments, and α controls to control at 30-40o at 35-45o, β.
When between the described hangnail portion being fixedly installed on seal ring body upper and lower sides and seal ring body, obtuse angle is 150 °, acute angle is when being 45 °, described seal ring and pivoting support seal groove binding ability best.
Described a kind of pivoting support lip-type packing also comprises reinforcing line 5, this reinforcing line is the synthetic line of Φ=0.5-1mm, described reinforcing line is arranged between seal ring body and waist, deforms when expanding with heat and contract with cold or assemble and pull to prevent described seal ring.
Described a kind of pivoting support lip-type packing material adopts nitrile butadiene rubber, and oil resistance is fabulous, and wear resistance is higher, and heat resistance is better, and bonding force is strong.
A kind of pivoting support lip-type packing that the utility model proposes, good seal performance, has good oil resistance and weatherability, not easily deforms, the problem such as loose or dislocation, effectively protects pivoting support raceway, extends the pivoting support life-span.
Claims (4)
1. a pivoting support lip-type packing, it comprises seal ring body, waist and lip, seal ring body, waist are connected with lip one, it is characterized in that described seal ring body upper and lower sides is fixedly installed some hangnail portions, labial angle θ=105 ° of described lip, lip anterior angle is 35-45o and lip relief angle is 30-40o.
2. a kind of pivoting support lip-type packing according to claim 1, is characterized in that being fixedly installed on that obtuse angle between the hangnail portion of seal ring body upper and lower sides and seal ring body is 150 °, acute angle is 45 °.
3. a kind of pivoting support lip-type packing according to claim 1, is characterized in that it also comprises reinforcing line, and this reinforcing line is the synthetic line of Φ=0.5-1mm, and described reinforcing line is arranged between seal ring body and waist.
4. a kind of pivoting support lip-type packing according to claim 1, is characterized in that described a kind of pivoting support lip-type packing material adopts nitrile butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789261.1U CN204327983U (en) | 2014-12-15 | 2014-12-15 | A kind of pivoting support lip-type packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789261.1U CN204327983U (en) | 2014-12-15 | 2014-12-15 | A kind of pivoting support lip-type packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327983U true CN204327983U (en) | 2015-05-13 |
Family
ID=53164345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789261.1U Active CN204327983U (en) | 2014-12-15 | 2014-12-15 | A kind of pivoting support lip-type packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777833A (en) * | 2020-07-16 | 2020-10-16 | 马鞍山方圆精密机械有限公司 | Slewing bearing sealing ring and sealing ring material |
-
2014
- 2014-12-15 CN CN201420789261.1U patent/CN204327983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777833A (en) * | 2020-07-16 | 2020-10-16 | 马鞍山方圆精密机械有限公司 | Slewing bearing sealing ring and sealing ring material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170122 Address after: 243000 Ma'anshan economic and Technological Development Zone, Anhui, West Hill Road, No. 3, No. 399 Patentee after: Ma'anshan Fangyuan Pml Precision Mechanism Ltd Address before: 243000 Ma'anshan Province Economic and Technological Development Zone, West Mountain Road, Anhui Patentee before: Maanshan Fangyuan Slewing Ring Co., Ltd. |