CN107414737A - A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool - Google Patents
A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool Download PDFInfo
- Publication number
- CN107414737A CN107414737A CN201710649586.8A CN201710649586A CN107414737A CN 107414737 A CN107414737 A CN 107414737A CN 201710649586 A CN201710649586 A CN 201710649586A CN 107414737 A CN107414737 A CN 107414737A
- Authority
- CN
- China
- Prior art keywords
- hole
- base part
- teflon
- shell base
- positioning seat
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool, including：One positioning seat, with a bottom surface corresponding with the end face in the hole for thering is hole to justify shell base part, vertical through hole is provided with bottom surface, the diameter of vertical through hole is equal to the described hole for having hole circle shell base part, the side of positioning seat is provided with lateral threaded holes connection vertical through hole and is screwed with positioning screw, is additionally provided with positioning seat for there is the location structure of the circle shell positioning of hole circle shell base part；One depthkeeping push rod, is cylinder, and top is provided with annular convex shoulder, and the diameter of cylinder is slidably matched the positioning seat vertical through hole, and the bottom of cylinder is provided with prominent axial pin, side is then milled with axial keyway；One back-moving spring.The present invention is simple in construction, easy to use；The predeformation amount that Teflon is obturaged can be minimized, Teflon is avoided damage to and obturages.
Description
Technical field
The present invention relates to a kind of Teflon to obturage installation tool, more particularly to a kind of aircraft engine has hole to justify shell base part
Teflon obturages installation tool.
Background technology
Fuel system is the important component of aircraft engine system, and the part of fuel system is as the important of engine
Part, directly affects the safety and performance of engine, is always the emphasis of maintenance；
Fuel oil part is made up of drive shaft, guiding valve, electrohydraulic servo valve, magnetic valve, displacement transducer, operating bar etc. more.By
It is directed to rotate or moves back and forth in above-mentioned part, this kind of dynamic part obturages the side sealed together with seal using Teflon more
Formula, increase the wearability of encapsulant, to improve reliability.
Teflon, which is obturaged, to be installed in the groove of part case endoporus, bigger than shell inner hole due to obturaging external diameter, and is obturaged
Material is hard, elastic deformation amount is small, and deformation process is needed in installation process, to be installed on the shell inner hole groove of fuel oil part
It is interior.In the prior art, installation Teflon, which is obturaged, has no specially designed instrument, often causes Teflon to obturage when as a result installing
Overbending, influence its sealing property, sometimes even cause Teflon to obturage fracture；Meanwhile easily caused in installation process
The inclination obturaged, it is big to be attached to difficulty in shell inner hole groove.It directly affects the safety and reliability for obturaging part.
The content of the invention
The technical problems to be solved by the invention, being just to provide a kind of aircraft engine has hole circle shell base part Teflon envelope
Tight installation tool, overbending when Teflon obturages installation or fracture are effectively prevent, holds its seal under energy；Meanwhile pacify
Inclination will not be produced by being obturaged during dress, be easily attached in shell inner hole groove, improve obturage part security and can
By property.
Solves above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool, and described has hole to justify shell base part
Have to be provided with the circle shell base part endoporus of hole and obturage groove with seal for installing Teflon；It is characterized in that：Described erector
Tool includes：
One positioning seat, there is a bottom surface corresponding with the end face for having hole to justify shell base part endoporus, opened on bottom surface
There is vertical through hole, the diameter of vertical through hole is equal to the diameter for having hole circle shell base part endoporus, and the side of positioning seat is provided with horizontal spiral shell
Pit connects vertical through hole and is screwed with positioning screw, is additionally provided with positioning seat for there is the circle shell positioning of hole circle shell base part
Location structure；
One depthkeeping push rod, it is cylinder；Top is provided with annular convex shoulder, and the diameter of cylinder is slidably matched the vertical of the positioning seat
Through hole, the bottom of cylinder are provided with prominent axial pin, and side is milled with axial keyway；
One back-moving spring；
Depthkeeping push rod is inserted in vertical through hole from positioning seat top surface, and back-moving spring, which is enclosed on depthkeeping push rod, is located at positioning seat top
Between face and depthkeeping push rod top annular convex shoulder, axial keyway correspond to the positioning screw front end of the positioning seat；Axial keyway
Length, should to promote Teflon to obturage to reach and there is hole circle shell base part endoporus installation Teflon to obturage when depthkeeping push rod is descending
During with the groove location of seal, positioning screw front end withstands on the upper end of axial keyway.
Preferably, described positioning seat is the cylinder for being provided with axially extending bore, and then symmetrically milling is put down on two sides on cylinder, horizontal
Be opened in screwed hole on arc surface, described location structure is axially extended symmetrical two projection in lower surface, two projections it is interior
Side is processed as corresponding to the positioning arc surface for having the circular hole shell of hole circle shell base part cylindrical.
When installation Teflon is obturaged, positioning is put into after Teflon is obturaged into predeformation using the pin of the front end of depthkeeping push rod
In seat vertical through hole, positioning seat vertical through hole turns into the circular arc deformation space that Teflon is obturaged, then with the setting circle of positioning seat
Cambered surface and aircraft engine have that hole circle shell base part circle shell excircle orientation is good, set screw and the axial keyway of depthkeeping push rod side
Coordinate, be adapted with there is hole circle shell base part to obturage the depth of groove when obturaging depth and the installation in predeformation space, finally with fixed
The front end face of deep push rod by Teflon obturage it is lower top to have hole justify shell base part endoporus groove location.
The beneficial effects of the invention are as follows：
1) present invention can minimize the predeformation amount that Teflon is obturaged, and avoid damage to Teflon and obturage.
2) for the present invention by screw and the mechanical position limitation of groove, effect can be installed with once mounting to specified location by making to obturage
Rate is high.
3) present invention is easy to use, and by designing the change of keyway size, can meet various sizes obturage and
Housing obturages the installment work of groove depth.
4) because the external diameter that Teflon is obturaged is bigger than the endoporus of installation tool, by pin and applying power, make to obturage in advance
" recessed " property deforms, and is attached at the endoporus of installation tool.Pin can play position-limiting action simultaneously, prevent the rotation in installation process
And deviation, keep horizontal movement in installation process.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is to be provided with seal and the schematic cross-sectional view for having hole circle shell base part that Teflon is obturaged；
Fig. 2 is that Teflon obturages the predeformation schematic diagram in hole；
Fig. 3 is that Teflon obturages the predeformation schematic diagram in the hole of the positioning seat of the present invention；；
Fig. 4 is the front view of the depthkeeping push rod of the present invention；
Fig. 5 is the right view of the depthkeeping push rod of the present invention；
Fig. 6 is the upward view of the depthkeeping push rod of the present invention；
Fig. 7 is the front view of the positioning seat of the present invention；
Fig. 8 is the right view of the positioning seat of the present invention；
Fig. 9 is the upward view of the positioning seat of the present invention；
Figure 10 is the assembling schematic diagram of the present invention.
In figure：1- axial pins；2- cylinders；3- axial keyways；4- annular convex shoulders；5- lateral threaded holes；6- vertical through hole；
7- location structures；8- back-moving springs；9- positioning screws；10- seal；11- is obturaged；12- has hole to justify shell base part；13- has Kong Yuan
Shell base part endoporus；14- grooves.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, the having to be provided with the endoporus 13 of hole circle shell base part 12 of aircraft engine is obturaged for installing Teflon
11 and the groove 14 of seal 12.
The present invention's has hole circle shell base part Teflon to obturage installation tool embodiment, including：
One positioning seat (with reference to figure 7- Fig. 9), to be provided with the cylinder of axially extending bore, then two sides symmetrically milling on cylinder
Flat, lateral threaded holes 5 are opened on arc surface, lower surface and the end for having hole circle shell base part endoporus 13 for having hole circle shell base part 12
Face is corresponding, and vertical through hole 6 is provided with planar base surface, and the diameter of vertical through hole 6 is equal to the diameter for having hole circle shell base part endoporus 13,
The side of positioning seat, which is provided with lateral threaded holes 5 and connected, vertical through hole 6 and is screwed with positioning screw 9, be additionally provided with positioning seat for
There are the location structure 7 of the circle shell positioning of hole circle shell base part 13, specially axially extended symmetrical two projection in lower surface, two is convex
The medial surface of block is processed as corresponding to the positioning arc surface for having the circular hole shell of hole circle shell base part 12 cylindrical.
One depthkeeping push rod (with reference to figure 4- Fig. 6), it is cylinder 2, top is provided with annular convex shoulder 4, and the diameter of cylinder 2 is slidably matched
The vertical through hole 6 of the positioning seat, the bottom of cylinder 2 are provided with prominent axial pin 1, and side is milled with axial keyway 3；
One back-moving spring 8.
With reference to figure 10, depthkeeping push rod is inserted in vertical through hole 6 from positioning seat top surface, and back-moving spring 8 is enclosed on depthkeeping push rod
Between positioning seat top surface and depthkeeping push rod top annular convex shoulder 4, axial keyway 3 correspond to the positioning screw of the positioning seat
9 front ends, the length of axial keyway 3, should cause when depthkeeping push rod it is descending promote Teflon obturage 11 reach have hole justify shell base part
Endoporus 13 install Teflon obturage 11 and seal 10 14 position of groove when, the front end of positioning screw 9 withstands on the upper of axial keyway 3
End.
The course of work of the present invention is as follows：
Installation Teflon is when obturaging 11, and Teflon obturaged to be put into positioning seat after 11 predeformation vertical using axial pin 1
In through hole 6, positioning seat vertical through hole 6 turns into the circular arc deformation space (referring to Fig. 3) that Teflon is obturaged, and is then determined with positioning seat
Circle of position cambered surface and aircraft engine there is hole circle shell base part 12 to justify shell excircle orientation is good, set screw 9 and depthkeeping push rod side
Axial keyway 3 coordinates, with the depth phase for having hole circle shell base part 12 to obturage groove when obturaging depth and the installation in 11 predeformation spaces
Adapt to, Teflon is finally obturaged into 11 time tops to there is hole to justify the position of shell base part endoporus groove 14 i.e. with the front end face of depthkeeping push rod
Can.
After installing, depthkeeping push rod is because position of the lower automatic rebounding of the elastic force effect of back-moving spring 8 to before installing.
Now Teflon is obturaged 11 and has just been attached in hole circle shell base part endoporus groove 14, i.e., in seal 10；Finally
Whole installation tool is removed, installation steps are completed.
Obturaged due to Teflon 10 external diameter it is bigger than the endoporus of installation tool, by axial pin 1 and applying power, make to obturage
10 produce the deformation of " recessed " property (with reference to figure 2), are attached at the endoporus of installation tool (with reference to figure 3).Axial pin 1 can play simultaneously
Position-limiting action, the rotation in installation process and deviation are prevented, keep horizontal movement in installation process.
The present invention obturages 11 to Teflon to be installed with pre-deformation device and carries out initial deformation, and its deflection just and has
Hole circle shell base part endoporus 13 is consistent, to reach the purpose of least amount of deformation；Again by tool positioning device, by whole work
Tool has been navigated on hole circle shell base part 12；Finally by erecting device is pushed down on, Teflon to be installed is set to obturage 11 vertical
Into the installation site of housing, the inclination in installation process is effectively avoided, and once mounting is in place.
Claims (3)
1. a kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool, described to have hole to justify shell base part (12)
There is hole to justify to be provided with shell base part endoporus (13) for installing the groove (14) that Teflon obturages (11) and seal (12), its feature
It is：The installation tool includes：
One positioning seat, there is a bottom surface corresponding with the end face for having hole to justify shell base part (12), be provided with bottom surface vertical
Clear opening (6), the diameter of vertical through hole (6) are equal to the diameter for having hole to justify shell base part endoporus (13), and the side of positioning seat is provided with
Lateral threaded holes (5) connection vertical through hole (6) is simultaneously screwed with positioning screw (9), is additionally provided with positioning seat for there is hole to justify shell class
The location structure (7) of the circle shell positioning of part (12)；
One depthkeeping push rod, it is cylinder (2), cylinder (2) top is provided with annular convex shoulder (4), and the diameter of cylinder (2) is slidably matched
The vertical through hole (6) of the positioning seat, the bottom of cylinder (2) are provided with prominent axial pin (1), and side is milled with axial keyway
(3)；
One back-moving spring (3)；
For depthkeeping push rod from positioning seat top surface insertion vertical through hole (6), back-moving spring (8), which is enclosed on depthkeeping push rod, is located at positioning seat
Between top surface and depthkeeping push rod top annular convex shoulder (4), positioning screw (9) front end of the corresponding positioning seat of axial keyway (3)；
The length of axial keyway (3) so that when depthkeeping push rod it is descending promote Teflon obturage (11) reach have hole justify shell base part endoporus
(13) when installation Teflon obturages groove (14) position of (11) and seal (10), positioning screw (9) front end withstands on axial keyway
(3) upper end.
2. aircraft engine according to claim 1 has hole circle shell base part Teflon to obturage installation tool, its feature exists
In：The positioning seat is the cylinder for being provided with axially extending bore, and then symmetrically milling is put down on two sides on cylinder, and lateral threaded holes (5) are opened
On arc surface, the location structure (7) is axially extended symmetrical two projection in lower surface, and the medial surface of two projections is processed as
Corresponding to the positioning arc surface that the circular hole shell for having hole circle shell base part (12) is cylindrical.
3. aircraft engine according to claim 1 or 2 has hole circle shell base part Teflon to obturage installation tool, its feature
It is, application method is：
(11) are obturaged to Teflon using the axial pin (1) for being arranged on depthkeeping push rod and apply active force, obturage Teflon
(11) produce predeformation, after be put into positioning seat vertical through hole (6), positioning seat vertical through hole (6) is obturaged (11) as Teflon
Circular arc deformation space；Then hole justifies shell base part (12) circle shell with aircraft engine with the positioning arc surface of positioning seat cylindrical
Positioning；
Set screw (9) and the axial keyway (3) of depthkeeping push rod side coordinate, and the depth in (11) predeformation space is obturaged with Teflon
There is hole circle shell base part (12) to obturage the depth of groove when degree and installation to be adapted, obturaged Teflon with the front end face of depthkeeping push rod
(11) pushed up under to have hole justify shell base part endoporus groove (14) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649586.8A CN107414737A (en) | 2017-08-02 | 2017-08-02 | A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649586.8A CN107414737A (en) | 2017-08-02 | 2017-08-02 | A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107414737A true CN107414737A (en) | 2017-12-01 |
Family
ID=60437253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710649586.8A Pending CN107414737A (en) | 2017-08-02 | 2017-08-02 | A kind of aircraft engine has hole circle shell base part Teflon to obturage installation tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107414737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546280A (en) * | 2020-04-23 | 2020-08-18 | 广州飞机维修工程有限公司 | Aircraft starting drive assembly equipment frock of obturating |
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| CN106239423A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Cylinder holes sealing ring assembly tool |
| CN206048049U (en) * | 2016-08-24 | 2017-03-29 | 广州飞机维修工程有限公司 | A kind of aircraft pneumatic primer is obturaged mounting tool |
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| US3990138A (en) * | 1973-09-24 | 1976-11-09 | Etat Francais | Device for placing a preformed fitting in a groove |
| CA2293377C (en) * | 1997-08-08 | 2003-12-23 | Aeroquip Corporation | Face seal o-ring insertion tool |
| US6971150B1 (en) * | 2003-11-20 | 2005-12-06 | Robert Bosch Gmbh | Method of positioning a seal in a groove of a bore in a housing |
| DE102008026809A1 (en) * | 2008-06-05 | 2009-12-10 | Knick Elektronische Messgeräte GmbH & Co. KG | Mounting device for positioning e.g. scraper ring, in interior slot of passage channel, has pressurizing unit for pressing rings into support and recess such that rings with outer contour are slid for being inserted into tubular channel |
| CN201353754Y (en) * | 2009-02-18 | 2009-12-02 | 衡阳风顺车桥有限公司 | Assembling tool with key groove gear |
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| CN106239423A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Cylinder holes sealing ring assembly tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111546280A (en) * | 2020-04-23 | 2020-08-18 | 广州飞机维修工程有限公司 | Aircraft starting drive assembly equipment frock of obturating |
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| PB01 | Publication | ||
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Application publication date: 20171201 |