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 PDFInfo
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 21
- 239000000446 fuel Substances 0.000 description 4
- 210000000664 Rectum Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000002175 menstrual Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings 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
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.
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)
| 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 |
-
2016
- 2016-11-04 CN CN201610965585.XA patent/CN106439015A/en active Pending
Patent Citations (6)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |