CN106439015A - Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way - Google Patents

Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way Download PDF

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Publication number
CN106439015A
CN106439015A CN201610965585.XA CN201610965585A CN106439015A CN 106439015 A CN106439015 A CN 106439015A CN 201610965585 A CN201610965585 A CN 201610965585A CN 106439015 A CN106439015 A CN 106439015A
Authority
CN
China
Prior art keywords
sealing
guide sleeve
shell
guide pin
pin bushing
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.)
Pending
Application number
CN201610965585.XA
Other languages
Chinese (zh)
Inventor
高妮
贺青
王剑
李培良
胡肖璐
陈岭雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Aero Engine Controls Co Ltd
Original Assignee
Xian Aero Engine Controls Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xian Aero Engine Controls Co Ltd filed Critical Xian Aero Engine Controls Co Ltd
Priority to CN201610965585.XA priority Critical patent/CN106439015A/en
Publication of CN106439015A publication Critical patent/CN106439015A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means

Abstract

The invention relates to a guide sleeve sealing structure for an end face high-pressure large-drift-diameter oil way. The guide sleeve sealing structure is composed of an upper shell (1), a lower shell (2), a guide sleeve (3), a protecting ring (4) and a seal ring (5). Oil way sealing holes of the combined faces of the upper shell (1) and the lower shell (2) are connected through the guide sleeve (3) of a similar valve lining structure according to a radial sealed structure form, and the upper end and the lower end of the guide sleeve (3) are sequentially sleeved with the seal ring (5) and the protecting ring (4). The guide sleeve sealing structure is good in sealing effect, multiple end face sealed oil leakage failures of the product are effectively solved, and the reliability of the product is greatly improved.

Description

A kind of guide pin bushing sealing structure for end face high pressure big orifice oil circuit
Technical field
The invention belongs to structure-design technique field is and in particular to a kind of guide pin bushing for end face high pressure big orifice oil circuit is close Seal structure.
Background technology
General fuel regulator housing uses unitary design, and faying face is using low pressure, the little oil circuit end face that stimulates the menstrual flow Sealing structure, when faying face has high pressure, big orifice oil circuit, due to high pressure impact, and flow is larger, and normal end face is close Seal structure easily causes sealing ring breakage, leads to end face seal oil leak.
Existing fuel oil mechanical hydraulic unit adopts upper and lower casing structure, and upper shell is the performance housing of product, lower house For product and outside crosslinked switching sexual function housing, Fast-Maintenance can be realized by changing upper shell during flight-line service, up and down Connection high pressure, big orifice oil circuit between casing joint surface, using common end face seal structure, are susceptible to faying face oil leak event Barrier.
Content of the invention
The fault of oil leak easily occurs for solving fuel oil mechanical hydraulic unit faying face, the present invention devises one kind and is used for holding The guide pin bushing sealing structure of face high pressure big orifice oil circuit, common end face seal structure is converted to radial seal structure.
In view of the problems referred to above of prior art, according to one side disclosed by the invention, the present invention adopts following technology Scheme:
A kind of guide pin bushing sealing structure for end face high pressure big orifice oil circuit, by upper shell (1), lower house (2), guide pin bushing (3), guard circle (4) and sealing ring (5) composition;
Radial seal structure form is pressed in the sealing oil circuit hole of upper shell (1) and lower house (2) faying face, is served as a contrast by class valve The guide pin bushing (3) of nested structure connects, and guide pin bushing (3) upper and lower ends are cased with a sealing ring (5) and guard circle (4) successively, by sealing Circle (5) cushion rubber carries out oil circuit sealing, guide pin bushing (3) sealing and upper shell (1) and lower house (2) faying face not in the same plane, By radial seal is converted to than more sensitive end face seal to deflection, do not result in seal failure.
Beneficial effect:
This guide pin bushing sealing structure sealing effectiveness preferably, efficiently solves this product a lot of end face seal oil leakage fault, greatly Improve greatly the reliability of product.
Brief description
Fig. 1 guide pin bushing sealed structure chart
Sealed structure chart on Fig. 2 housing
Fig. 3 guide sleeve structure figure
Fig. 4 main fuel mechanical hydraulic unit faying face oil circuit figure
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
A kind of guide pin bushing sealing structure for end face high pressure big orifice oil circuit of the present invention, by upper shell (1), lower house (2), guide pin bushing (3), guard circle (4) and sealing ring (5) composition;Referring to accompanying drawing 1.
Radial seal structure form is pressed in the sealing oil circuit hole of upper shell (1) and lower house (2) faying face, referring to accompanying drawing 2, leads to The guide pin bushing (3) crossing class valve bush structure connects, and guide pin bushing (3) upper and lower ends are cased with a sealing ring (5) and guard circle successively (4), oil circuit sealing is carried out by sealing ring (5) cushion rubber, guide pin bushing (3) sealing is not existed with upper shell (1) and lower house (2) faying face In same plane, referring to accompanying drawing 3, by radial seal is converted to than more sensitive end face seal to deflection, do not result in close Envelope lost efficacy.
Main fuel mechanical hydraulic unit adopts upper-lower casing structure, and faying face has many places high pressure and big orifice oil circuit, end Face seal adopts guide pin bushing sealing structure, and end face seal is converted to radial seal structure.The existing oil circuit of casing joint surface has 9, Structure is shown in Fig. 4.On housing, oil circuit has 9, and each road binders is pressed and latus rectum such as table 1.
Table 1
A lot of end face Leakages are occurred according to main fuel mechanical hydraulic unit, by simulation analysis, in conjunction with surface pressure relatively Height, at latus rectum larger a, b, g tri-, deflection is larger, and sealing structure larger for deformation of joint surface amount is changed to footpath by end face seal To guide pin bushing sealing, remaining deflection is less to keep original end face seal, have passed through 300h duration running, sealing effectiveness is preferable, Do not find oil leakage phenomenon.

Claims (1)

1. a kind of guide pin bushing sealing structure for end face high pressure big orifice oil circuit, by upper shell (1), lower house (2), guide pin bushing (3), Guard circle (4) and sealing ring (5) composition;
Radial seal structure form is pressed in the sealing oil circuit hole of upper shell (1) and lower house (2) faying face, is tied by class valve bushing The guide pin bushing (3) of structure connects, and guide pin bushing (3) upper and lower ends are cased with a sealing ring (5) and guard circle (4) successively, by sealing ring (5) Cushion rubber carries out oil circuit sealing, guide pin bushing (3) sealing and upper shell (1) and lower house (2) faying face not in the same plane, by right Deflection is converted to radial seal than more sensitive end face seal, does not result in seal failure.
CN201610965585.XA 2016-11-04 2016-11-04 Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way Pending CN106439015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610965585.XA CN106439015A (en) 2016-11-04 2016-11-04 Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610965585.XA CN106439015A (en) 2016-11-04 2016-11-04 Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way

Publications (1)

Publication Number Publication Date
CN106439015A true CN106439015A (en) 2017-02-22

Family

ID=58180390

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610965585.XA Pending CN106439015A (en) 2016-11-04 2016-11-04 Guide sleeve sealing structure for end face high-pressure large-drift-diameter oil way

Country Status (1)

Country Link
CN (1) CN106439015A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2711422Y (en) * 2004-06-17 2005-07-20 蔡振东 Seal mechanism for hydrocarbon like medium conveying pump
CN103234042A (en) * 2013-06-01 2013-08-07 四川日机密封件股份有限公司 Safe shutdown sealing device
CN203743546U (en) * 2014-01-16 2014-07-30 浙江众博矿业机械有限公司 Pilot-operated type overflow valve
CN104074919A (en) * 2014-07-09 2014-10-01 重庆大学 Engine magneto-rheological hydraulic mount method based on circumferential and radial flowing mode
CN204002674U (en) * 2014-08-21 2014-12-10 金湖恒力机械有限公司 A kind of metallic combination sealing shroud tube head
CN105179692A (en) * 2015-09-24 2015-12-23 北京精密机电控制设备研究所 Compact type redundant sealing structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2711422Y (en) * 2004-06-17 2005-07-20 蔡振东 Seal mechanism for hydrocarbon like medium conveying pump
CN103234042A (en) * 2013-06-01 2013-08-07 四川日机密封件股份有限公司 Safe shutdown sealing device
CN203743546U (en) * 2014-01-16 2014-07-30 浙江众博矿业机械有限公司 Pilot-operated type overflow valve
CN104074919A (en) * 2014-07-09 2014-10-01 重庆大学 Engine magneto-rheological hydraulic mount method based on circumferential and radial flowing mode
CN204002674U (en) * 2014-08-21 2014-12-10 金湖恒力机械有限公司 A kind of metallic combination sealing shroud tube head
CN105179692A (en) * 2015-09-24 2015-12-23 北京精密机电控制设备研究所 Compact type redundant sealing structure

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Application publication date: 20170222