CN204985728U - A sealing washer is used to axle for piston rod packing - Google Patents
A sealing washer is used to axle for piston rod packing Download PDFInfo
- Publication number
- CN204985728U CN204985728U CN201520460302.7U CN201520460302U CN204985728U CN 204985728 U CN204985728 U CN 204985728U CN 201520460302 U CN201520460302 U CN 201520460302U CN 204985728 U CN204985728 U CN 204985728U
- Authority
- CN
- China
- Prior art keywords
- lip
- axle
- slip ring
- ring
- piston rod
- 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 Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a sealing washer is used to axle for piston rod packing, including sealed main part and sliding ring, the inboard of sealed main part is equipped with first lip and second lip, be equipped with a V -arrangement recess between first lip and the side, second lip and another side parallel and level, the sliding ring set up in between first lip and the second lip. The utility model discloses an one side that is close to the piston rod in sealed main part inside sets up the sliding ring, plays the effect of supporting and leading to sealed main part to improve a withstand voltage degree with the sealing washer, the life of sealing washer for the extended shaft.
Description
Technical field
The utility model relates to hydraulic cylinder sealing field, particularly relates to a kind of axle seal ring for rod seal.
Background technique
Along with domestic economy development, national life level improves constantly, the industrial automatization of numerous domestic industrial and mining enterprise improves further, and sealed product plays key player in industrial automation, the quality of sealed product quality, plays key effect in dynaflow in industrial automation.Particularly in the heavy main equipment of the country concerning national economy, stable, the quality of sealed product performance reliable and the tolerance to various flowing medium are all very important.Meanwhile, at home in great type key equipment, adopt the Sealing of developed countries import, not only expensive, and also the arrival cycle is long, can cause heavy losses, cause severe contamination to environment during the maintenance and renovation of equipment to enterprise, destroys natural, ecological.
At present, in hydraulic system, generally adopt y-type seal ring or combined seal ring, its working life is all shorter, and reason is the lip serious wear of seal ring, makes seal ring lose seal action, and then causes hydraulic oil to leak.
Model utility content
The utility model provides a kind of axle seal ring for rod seal, to solve the above-mentioned technical problem of existing axle seal ring.
For solving the problems of the technologies described above, the utility model provides a kind of axle seal ring for rod seal, comprise sealed body and slip ring, the inner side of described sealed body is provided with the first lip and the second lip, a v-depression is provided with between described first lip and side, described second lip is concordant with another side, and described slip ring is arranged between described first lip and the second lip.
Preferably, the cross section of described first lip and the second lip is trapezoidal, and the side on shorter base is near piston rod.
Preferably, the bottom of described V-type groove is arc-shaped.
Preferably, the inner side of described slip ring is provided with a step near one end of described first lip.
Preferably, the bottom edge of described first lip is positioned at below the bottom edge of described slip ring.
Preferably, the bottom edge of described second lip is positioned at more than the bottom edge of described slip ring.
Preferably, described sealed body adopts nitrile rubber material to make.
Preferably, described slip ring adopts polytetrafluoroethylmaterial material to make.
Compared with prior art, a kind of axle seal ring for rod seal that the utility model provides, comprise sealed body and slip ring, the inner side of described sealed body is provided with the first lip and the second lip, a v-depression is provided with between described first lip and side, described second lip is concordant with another side, and described slip ring is arranged between described first lip and the second lip.The utility model, by arranging slip ring in the inner side near piston rod of sealed body, plays the effect supporting and lead, thus improves the withstand voltage degree of axle seal ring, the working life of extending shaft seal ring to sealed body.
Accompanying drawing explanation
Fig. 1 is the structural representation of the axle seal ring for rod seal of the utility model one specific embodiment mode.
In figure: 10-sealed body, 11-first lip, 12-second lip, 13-V type groove, 20-slip ring, 21-step.
Embodiment
In order to the technological scheme of the above-mentioned model utility of more detailed statement, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.
A kind of axle seal ring for rod seal that the utility model provides, please refer to Fig. 1, comprise sealed body 10 and slip ring 20, the inner side of described sealed body 10 is provided with the first lip 11 and the second lip 12, a v-depression 13 is provided with between described first lip 11 and side, described second lip 12 is concordant with another side, and described slip ring 20 is arranged between described first lip 11 and the second lip 12.Particularly, sealed body 10 in the utility model plays main seal effect, by arranging slip ring 20 in the inner side near piston rod of sealed body 10, play the effect of auxiliary seal, support and guiding, thus improve the withstand voltage degree of axle seal ring, the working life of extending shaft seal ring.
Preferably, please continue to refer to Fig. 1, the cross section of described first lip 11 and the second lip 12 is trapezoidal, and the side on shorter base is near piston rod (not shown).When seal ring is subject to the pressure to piston rod direction, the first lip 11 is to V-type groove 13 internal strain, and the first lip 11 and the second lip 12 are pressed close to piston rod simultaneously, guarantee sealing effect.
Preferably, please continue to refer to Fig. 1, the bottom of described V-type groove 13 is arc-shaped, and when avoiding receiving reciprocal pressure, V-type groove 13 is torn from bottom.
Preferably, please continue to refer to Fig. 1, the inner side of described slip ring 20 is provided with a step 21 near one end of described first lip 11, when seal ring is stressed after piston rod, can also supplies running of hydraulic power oil, avoid the proper motion affecting piston rod in this step.
Preferably, please continue to refer to Fig. 1, the bottom edge of described first lip 11 is positioned at below the bottom edge of described slip ring 20, that is, compared to slip ring 20, the bottom of described first lip 11 more close to described piston rod, to guarantee sealing effect during lateral forces; Preferably, the bottom edge of described second lip 12 is positioned at more than the bottom edge of described slip ring 20, and that is, compared to slip ring 20, the bottom piston rod described in principle more of described second lip 12, to guarantee sealing effect when top is stressed.
Preferably, described sealed body 10 adopts nitrile rubber material to make, and has the anti-of good oil resistance, wear resistance and excellence and extrudes intensity; Described slip ring 20 adopts polytetrafluoroethylmaterial material to make, and has certain hardness, thus plays the effect supporting and lead.
In sum, a kind of axle seal ring for rod seal that the utility model provides, comprise sealed body 10 and slip ring 20, the inner side of described sealed body 10 is provided with the first lip 11 and the second lip 12, a v-depression 13 is provided with between described first lip 11 and side, described second lip 12 is concordant with another side, and described slip ring 20 is arranged between described first lip 11 and the second lip 12.The utility model, by arranging slip ring 20 in the inner side near piston rod of sealed body 10, plays the effect supporting and lead, thus improves the withstand voltage degree of axle seal ring, the working life of extending shaft seal ring to sealed body 10.
Obviously, those skilled in the art can carry out various change and modification to model utility and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. the axle seal ring for rod seal, it is characterized in that, comprise sealed body and slip ring, the inner side of described sealed body is provided with the first lip and the second lip, be provided with a v-depression between described first lip and side, described second lip is concordant with another side, and described slip ring is arranged between described first lip and the second lip, the cross section of described first lip and the second lip is trapezoidal, and the side on shorter base is near piston rod.
2., as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, the bottom of described V-type groove is arc-shaped.
3., as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, the inner side of described slip ring is provided with a step near one end of described first lip.
4., as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, the bottom edge of described first lip is positioned at below the bottom edge of described slip ring.
5., as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, the bottom edge of described second lip is positioned at more than the bottom edge of described slip ring.
6. as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, described sealed body adopts nitrile rubber material to make.
7. as claimed in claim 1 for the axle seal ring of rod seal, it is characterized in that, described slip ring adopts polytetrafluoroethylmaterial material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460302.7U CN204985728U (en) | 2015-06-30 | 2015-06-30 | A sealing washer is used to axle for piston rod packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460302.7U CN204985728U (en) | 2015-06-30 | 2015-06-30 | A sealing washer is used to axle for piston rod packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985728U true CN204985728U (en) | 2016-01-20 |
Family
ID=55120097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520460302.7U Expired - Fee Related CN204985728U (en) | 2015-06-30 | 2015-06-30 | A sealing washer is used to axle for piston rod packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985728U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
| CN109154391A (en) * | 2016-05-19 | 2019-01-04 | 日本华尔卡工业株式会社 | Dissection type sealing ring |
| CN110686036A (en) * | 2018-07-06 | 2020-01-14 | Nok株式会社 | Supporting ring |
| CN112555226A (en) * | 2020-12-29 | 2021-03-26 | 徐州金鼎恒立液压件有限公司 | Low-friction sealing device for piston rod shaft of hydraulic cylinder |
-
2015
- 2015-06-30 CN CN201520460302.7U patent/CN204985728U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154391A (en) * | 2016-05-19 | 2019-01-04 | 日本华尔卡工业株式会社 | Dissection type sealing ring |
| CN107387765A (en) * | 2017-08-25 | 2017-11-24 | 利辛县宝隆橡塑密封件有限责任公司 | A kind of hydraulic cylinder sealing ring |
| CN110686036A (en) * | 2018-07-06 | 2020-01-14 | Nok株式会社 | Supporting ring |
| CN112555226A (en) * | 2020-12-29 | 2021-03-26 | 徐州金鼎恒立液压件有限公司 | Low-friction sealing device for piston rod shaft of hydraulic cylinder |
| CN112555226B (en) * | 2020-12-29 | 2023-12-22 | 徐州金鼎恒立液压件有限公司 | Low-friction sealing device for hydraulic cylinder piston rod 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 |
Granted publication date: 20160120 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |