CN205278370U - A combined seal ring that is used for sealed position of high frequency activity - Google Patents
A combined seal ring that is used for sealed position of high frequency activity Download PDFInfo
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- CN205278370U CN205278370U CN201521034264.5U CN201521034264U CN205278370U CN 205278370 U CN205278370 U CN 205278370U CN 201521034264 U CN201521034264 U CN 201521034264U CN 205278370 U CN205278370 U CN 205278370U
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- high frequency
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- polyphenyl fat
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Abstract
The utility model belongs to the sealing member provides a combined seal ring that is used for sealed position of high frequency activity, include: PTFE sliding ring 1, butadiene acrylonitrile rubber " O " type sealing washer 2 are filled to polyphenyl fat, polyphenyl fat is filled 1 periphery on PTFE sliding ring middle part and is equipped with the recess, the recess both sides are in the middle of the circular arc bottom for the plane, and 2 sets butadiene acrylonitrile rubber " O " the type sealing washers are in the recess of 1 periphery on the PTFE sliding ring is filled to polyphenyl fat. The utility model discloses an aspect has simple structure, easily assembly, hangs down characteristics such as rubbing, be applicable to the high frequency motion, can satisfy the good sealing performance requirement in the long life -cycle time of actuator simultaneously again to passed through the examination of product endurance test, proved that this kind of combination activity seal structure can satisfy hydraulic actuator service environment and life requirements.
Description
Technical field
The invention belongs to sealing member, it is specifically related to a kind of combined seal ring for high frequency movable sealing position.
Background technology
Hydraulic pressure actuator is the important composition of aircraft fly-by-wire flight control system, and its function and performance determine that can flight control system the key of normal operation. Being the actuator of 28MPa for operating pressure, good and bad function, the Performance And Reliability directly affecting product of sealing property, even can cause plane hydraulic system to lose efficacy when leaking serious. " O " RunddichtringO+pure tetrafluoroethylene guard ring is a kind of simple, economic sealed structure in engineering; but as the movable sealing structure under 28MPa operating pressure; in use often expose the problem of wear-out life deficiency during the straight reciprocating motion poor, long-time of "O"-ring wear resisting property; therefore cause hydraulic pressure actuator outer gland sealing to leak to exceed standard, affect product work reliability and life-span.
Summary of the invention
It is an object of the invention to: propose a kind of combined seal ring for high frequency movable sealing position, meet hydraulic pressure actuator environment for use and life-span requirement.
The technical scheme of the present invention is: a kind of combined seal ring for high frequency movable sealing position, comprising:
Polyphenyl fat Filled PTEF slip ring (1), paracril " O " RunddichtringO (2),
It is provided with groove in the middle part of described polyphenyl fat Filled PTEF slip ring (1) periphery, described groove both sides are circular arc central bottom is plane, and paracril " O " RunddichtringO (2) is enclosed within the groove of polyphenyl fat Filled PTEF slip ring (1) periphery.
It is an advantage of the invention that: one aspect of the present invention have structure simple, be easy to assembling, low friction, be applicable to the features such as high frequency motion, the good seal performance requirement in phase actuator long lifetime can be met again simultaneously, and have passed product long duration test examination, prove that this kind of combined moving sealed structure can meet hydraulic pressure actuator environment for use and life-span requirement.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of the present invention.
Fig. 2 is the decomposition chart of the present invention.
Embodiment
Below the present invention is described in further details.
The hydraulic pressure actuator movable sealing of straight reciprocating motion is due in the friction process being in sealing material and metallic surface relatively sliding all the time, and this kind of friction can make rubber packing material heating, abrasion and aging, and finally causes actuator seal failure. Therefore, abrasion is the main and the most common failure mode of actuator movable sealing. Meanwhile, under 28MPa operating pressure, high speed, the greatly applying working condition such as load and high temperature can aggravate the aggravation of sealing part abrasion, thus also just had higher requirement by the wear resisting property of sealing material.
For " O " RunddichtringO+pure tetrafluoroethylene guard ring under 28MPa operating pressure during long-time straight reciprocating motion wear-out life not enough and affect the problem in product work reliability and life-span; emphasis of the present invention novelty in the selecting of sealed structure and sealing material proposes a solution; as shown in Figure 1, 2, comprising:
Polyphenyl fat Filled PTEF slip ring 1, paracril " O " RunddichtringO 2,
Being provided with groove in the middle part of described polyphenyl fat Filled PTEF slip ring 1 periphery, described groove both sides are circular arc central bottom is plane, and paracril " O " RunddichtringO 2 is enclosed within the groove of polyphenyl fat Filled PTEF slip ring 1 periphery.
Above scheme makes full use of the characteristics such as the polyphenyl fat low friction of Filled PTEF composite seal, high-wear resistance on the one hand, it can be used as the slip ring in combination sealing, for directly contacting with sealing face, thus improve wear resisting property and the wear-out life of combination sealing part; Utilize on the other hand that the snappiness of acrylonitrile butadiene packing material, oil resistance be good and the performance such as wide use temperature scope, for polyphenyl fat Filled PTEF slip ring being pressed on sealing face, playing and supporting and pressuring action.
Claims (1)
1. the combined seal ring for high frequency movable sealing position, it is characterised in that, comprising:
Polyphenyl fat Filled PTEF slip ring (1), paracril " O " RunddichtringO (2),
It is provided with groove in the middle part of described polyphenyl fat Filled PTEF slip ring (1) periphery, described groove both sides are circular arc central bottom is plane, and paracril " O " RunddichtringO (2) is enclosed within the groove of polyphenyl fat Filled PTEF slip ring (1) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521034264.5U CN205278370U (en) | 2015-12-11 | 2015-12-11 | A combined seal ring that is used for sealed position of high frequency activity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521034264.5U CN205278370U (en) | 2015-12-11 | 2015-12-11 | A combined seal ring that is used for sealed position of high frequency activity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278370U true CN205278370U (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521034264.5U Active CN205278370U (en) | 2015-12-11 | 2015-12-11 | A combined seal ring that is used for sealed position of high frequency activity |
Country Status (1)
| Country | Link |
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| CN (1) | CN205278370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849080A (en) * | 2019-11-27 | 2020-02-28 | 东台市富安合成材料有限公司 | Ring pressure formula synthetic leather drying device |
-
2015
- 2015-12-11 CN CN201521034264.5U patent/CN205278370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849080A (en) * | 2019-11-27 | 2020-02-28 | 东台市富安合成材料有限公司 | Ring pressure formula synthetic leather drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |