CN107191291A - The dust guard and its installation method of a kind of engine - Google Patents
The dust guard and its installation method of a kind of engine Download PDFInfo
- Publication number
- CN107191291A CN107191291A CN201710569980.0A CN201710569980A CN107191291A CN 107191291 A CN107191291 A CN 107191291A CN 201710569980 A CN201710569980 A CN 201710569980A CN 107191291 A CN107191291 A CN 107191291A
- Authority
- CN
- China
- Prior art keywords
- attachment strap
- backing plate
- engine
- lower attachment
- dust guard
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 210000000867 larynx Anatomy 0.000 claims 1
- 230000004224 protection Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 3
- 239000003380 propellant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002609 anti-worm Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to engine protection device, and in particular to the dust guard and its installation method of a kind of engine, and its object is to solve the problems, such as the dust-proof blanking cover of available engine because of bonding to cause its to hold caducous failure.The technical scheme is that providing a kind of dust guard of engine, including bolt, upper attachment strap, lower attachment strap, the backing plate for sticking to lower attachment strap upper end and the nut for being separately positioned on backing plate upper end and lower attachment strap lower end, the center of the upper attachment strap, lower attachment strap and backing plate is equipped with mounting hole, the shape of the shape of the upper attachment strap and engine throat upper inside wall matches, and the shape of the lower attachment strap inwall corresponding with engine matches；Lower attachment strap and backing plate, are fixed on bolt by the mounting hole in the screw bolt passes on attachment strap, backing plate and lower attachment strap by nut.Dust guard is mechanical connection, installs simple, can be prevented effectively from the phenomenon generation that the various dust guards caused by adhesion problem come off.
Description
Technical field
The present invention relates to engine protection device, and in particular to the dust guard and its installation method of a kind of engine.
Background technology
Dust-proof blanking cover is the important guard member of normal temperature propellant first class engine, and the throat positioned at motor power room is
The important protective barrier together of motor power room working cavities, rank is used in Zhuan Jian ﹑ Yun Shu ﹑ transmittings and storage of engine etc.
Duan Jun plays the important function of the anti-fifth wheels such as the anti-worm ﹑ protections against rodents of anti-dirt ﹑.But occur to prevent after the rocket of multiple models transports target range to
The failure that dirt blanking cover comes off.Through analysis, there is following weak link in dust-proof blanking cover in bonding, installation：
(1) the bonding surface quality requirement of nozzle wall is high, and must polish thorough with sand paper when bonding, and is not allow for
Antirust oil is present；
(2) thrust chamber throat ovality can not be too big, and otherwise glue is difficult to fill full, influences adhesion strength；
(3) curing environment condition requires higher when bonding, and must solidify 24h after bonding, and environment temperature can not be low, and humidity is not
Can be big；
(4) intensity after blanking cover adhesive solidification can not be checked；
(5) the epoxy resin quality of main material 618 of adhesive is unstable, and source of goods quality is difficult to ensure that；
(6) dust guard after bonding is difficult to dismantle and refilled；
(7) dust-proof blanking cover in use, due to temperature change can produce alternate stress be easily caused cracking or come off.
Although understanding that dust guard is simple using bonding process after being analyzed more than, raw material quality and operating process
It is difficult to control to, dismantles and refill inconvenience, accordingly, it would be desirable to designs a kind of dust guard of new normal temperature propellant first class engine
Improve the working service of engine.
The content of the invention
It is an object of the invention to solve the problems, such as the dust-proof blanking cover of available engine because of bonding to cause its to hold caducous failure,
And there is provided the dust guard and its installation method of a kind of engine.
To achieve these goals, the technical scheme is that：
A kind of dust guard of engine, it is characterized in that：Including bolt, upper attachment strap, lower attachment strap, stick to down and take
The backing plate of plate upper end and the nut for being separately positioned on backing plate upper end and lower attachment strap lower end, the upper attachment strap, lower attachment strap and backing plate
Center be equipped with mounting hole, the shape of the shape of the upper attachment strap and engine throat upper inside wall matches, it is described under take
The shape of plate inwall corresponding with engine matches；Mounting hole in the screw bolt passes on attachment strap, backing plate and lower attachment strap,
Lower attachment strap and backing plate are fixed on bolt by nut.
Further, the diameter of the backing plate than corresponding engine inner wall diameter more than 1mm.
Further, the edge tilt of the upper attachment strap is set, and relative level has an inclination angle A upward.
Further, the edge tilt of the lower attachment strap is set, and relative level has an angle of inclination B directed downwardly.
Further, the inclination angle A and angle of inclination B are 16 °.
Further, the material of the upper attachment strap and lower attachment strap is polyvinyl chloride, and the material of backing plate is flexibel polyurethane
Foamed plastics, the material of screw bolt and nut is nylon.
The installation method of the dust guard of above-mentioned engine, it is characterized in that：Comprise the following steps：
1) backing plate is sticked at into lower attachment strap upper surface with anaerobic adhesive, ensures that backing plate and lower attachment strap are concentric when bonding, then stand
24 hours；
2) bolt passes through the mounting hole of upper attachment strap, and upper attachment strap is taken in attachment strap water on motor power room throat top, holding
Flat and overlap joint is firmly；
3) by one of nut and be stained with the lower attachment strap of backing plate and screw in bolt successively, push up lower attachment strap, make its with
Correspondence engine inner wall laminating, and ensure lower attachment strap level, then precession is located at nut above backing plate to the upper surface of backing plate,
Lower attachment strap is carried out it is spacing, then by the lower surface of another nut precession to lower attachment strap of fitting；
4) check that lower gap between attachment strap edge and engine inner wall keeps uniform, lower attachment strap lower surface will be fitted in
Nut again enclose by precession 6；
5) after installing, locking processing is carried out to screw bolt and nut.
Compared with prior art, the advantage of the invention is that：
1st, dust guard is mechanical connection, installs simple, can be prevented effectively from the various dust guards caused by adhesion problem
The phenomenon come off occurs.
2nd, the shape of the shape of the upper attachment strap and engine throat upper inside wall matches, and the edge tilt of upper attachment strap is set
Put, relative level has an inclination angle upward, it is ensured that upper attachment strap is closely overlapped on the inwall on engine throat top,
It is easily installed.
3rd, the shape of lower attachment strap inwall corresponding with engine matches, and the edge tilt of lower attachment strap is set, with respect to water
Plane has an inclination angle directed downwardly, is easy to lower attachment strap being pressed on engine inner wall.
4th, backing material is flexible polyurethane foam, the diameter of backing plate than corresponding engine inner wall diameter more than 1mm,
The gap of lower attachment strap and motor power chamber interior walls can be filled, the dust-proof effect problem that engine inner wall ovality is brought is made up.
5th, the material of the upper attachment strap and lower attachment strap is polyvinyl chloride, and the material of backing plate is moulded for flexible polyurethane foams
Material, the material of screw bolt and nut is nylon, and the material of whole dust guard is combustible material, is lighted a fire in engine start
Moment has just burnt and come off, and does not interfere with the Acceleration of starting of engine, shows to store for a long time through natural storage test,
Reliable in quality.
6th, due to backing plate first is bonded in into lower attachment strap upper surface, after dust guard is installed, can directly engine be entered next
Road assembly process, is effectively shortened assembly period；
7th, ensure installation pretightening force with pitch, it is ensured that certain installation tightness, can both make the full engine wall of backing plate filling
Face gap, ensures to deform excessive to cause attachment strap to come off again.
Brief description of the drawings
Fig. 1 is the structural representation of inventive engine dust guard；
Fig. 2 is Fig. 1 front view.
In figure：1st, bolt, 2, nut, 3, upper attachment strap, 4, lower attachment strap, 5, backing plate, 6, motor power room.
Embodiment
The present invention is further elaborated and illustrated with reference to specific embodiments and the drawings：
It is shown as depicted in figs. 1 and 2, a kind of dust guard of engine, including it is bolt 1, upper attachment strap 3, lower attachment strap 4, viscous
It is attached to the backing plate 5 of the lower upper end of attachment strap 4 and is separately positioned on the nut 2 of the upper end of backing plate 5 and the lower lower end of attachment strap 4, the upper attachment strap
3rd, the center of lower attachment strap 4 and backing plate 5 is equipped with mounting hole, and the bolt 1 is sequentially passed through on attachment strap 3, backing plate 5 and lower attachment strap 4
Mounting hole, lower attachment strap 4 and backing plate 5 are fixed on bolt 1 by nut 2.The shape and motor power of the upper attachment strap 3
The shape of the throat's upper inside wall of room 6 matches, and the lower attachment strap 4 matches with the shape of the corresponding inwall in motor power room 6.Institute
State the diameter of backing plate 5 than the corresponding inwall of motor power room 6 diameter more than 1mm.The edge tilt of the upper attachment strap 3 is set, phase
There is an inclination angle A upward to horizontal plane, the edge tilt of the lower attachment strap 4 is set, relative level has one directed downwardly to incline
Angle B, the inclination angle A and angle of inclination B are 16 °.The material of the upper attachment strap 3 and lower attachment strap 4 is polyvinyl chloride, the material of backing plate 5
Expect for flexible polyurethane foam, the material of bolt 1 and nut 2 is nylon.
The installation method of the dust guard of above-mentioned engine, comprises the following steps：
1) backing plate 5 is sticked at into the lower upper surface of attachment strap 4 with anaerobic adhesive XY401, ensures that backing plate 5 and lower attachment strap 4 are concentric when bonding,
Then 24 hours are stood；
2) bolt 1 passes through the mounting hole of upper attachment strap 3, and upper attachment strap 3 is taken to be taken on the throat top of motor power room 6, holding
The level of plate 3 and overlap joint is firm；
3) one of nut 2 is screwed in into bolt 1 with the lower attachment strap 4 for being stained with backing plate 5 successively, pushes up lower attachment strap 4, make
It fits with the corresponding inwall of motor power room 6, and ensures the lower level of attachment strap 4, and then precession is located at the nut 2 of the top of backing plate 5
To the upper surface of backing plate 5, lower attachment strap 4 is carried out it is spacing, then by the lower surface of another precession of nut 2 to lower attachment strap 4 of fitting；
4) check that lower gap between the edge of attachment strap 4 and the inwall of motor power room 6 keeps uniform, lower attachment strap will be fitted in
The nut of 4 lower surfaces again enclose by precession 6；
5) after installing, locking processing is carried out to bolt 1 and nut 2.
Claims (7)
1. a kind of dust guard of engine, it is characterised in that：Including bolt (1), upper attachment strap (3), lower attachment strap (4), stick to
The backing plate (5) of lower attachment strap (4) upper end and the nut (2) for being separately positioned on backing plate (5) upper end and lower attachment strap (4) lower end, it is described
The center of upper attachment strap (3), lower attachment strap (4) and backing plate (5) is equipped with mounting hole, shape and the engine larynx of the upper attachment strap (3)
The shape of portion's upper inside wall matches, and the shape of lower attachment strap (4) inwall corresponding with engine matches；The bolt (1)
The mounting hole on attachment strap (3), backing plate (5) and lower attachment strap (4) is sequentially passed through, by nut (2) by lower attachment strap (4) and backing plate
(5) it is fixed on bolt (1).
2. a kind of dust guard of engine according to claim 1, it is characterised in that：The diameter ratio of the backing plate (5)
The many 1mm of diameter of correspondence engine inner wall.
3. a kind of dust guard of engine according to claim 2, it is characterised in that：The edge of the upper attachment strap (3)
It is obliquely installed, relative level has an inclination angle A upward.
4. a kind of dust guard of engine according to claim 3, it is characterised in that：The edge of the lower attachment strap (4)
It is obliquely installed, relative level has an angle of inclination B directed downwardly.
5. a kind of dust guard of engine according to claim 4, it is characterised in that：The inclination angle A and angle of inclination B are
16°。
6. according to a kind of dust guard of any described engines of claim 1-5, it is characterised in that：The upper attachment strap (3)
Material with lower attachment strap (4) is polyvinyl chloride, and the material of backing plate (5) is flexible polyurethane foam, bolt (1) and nut
(2) material is nylon.
7. the installation method of engine dust guard, it is characterised in that：Comprise the following steps：
1) backing plate (5) is sticked at into lower attachment strap (4) upper surface with anaerobic adhesive, ensures that backing plate (5) and lower attachment strap (4) are concentric when bonding,
Then 24 hours are stood；
2) bolt (1) passes through the mounting hole of upper attachment strap (3), and upper attachment strap (3) is taken in attachment strap (3) on engine throat top, holding
Level and overlap joint is firm；
3) by one of nut (2) and it is stained with the lower attachment strap (4) of backing plate (5) and screws in bolt (1) successively, pushes up lower attachment strap
(4) it is fitted with corresponding engine inner wall, and ensure lower attachment strap (4) level, then precession is located at the spiral shell above backing plate (5)
The upper surface of female (2) to backing plate (5), lower attachment strap (4) is carried out it is spacing, then by another nut (2) precession to lower attachment strap of fitting
(4) lower surface；
4) check that lower gap of the attachment strap (4) between edge and engine inner wall keeps uniform, lower attachment strap (4) lower surface will be fitted in
Nut (2) precession 6 is enclosed again；
5) after installing, locking processing is carried out to bolt (1) and nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569980.0A CN107191291A (en) | 2017-07-13 | 2017-07-13 | The dust guard and its installation method of a kind of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569980.0A CN107191291A (en) | 2017-07-13 | 2017-07-13 | The dust guard and its installation method of a kind of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191291A true CN107191291A (en) | 2017-09-22 |
Family
ID=59883726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710569980.0A Pending CN107191291A (en) | 2017-07-13 | 2017-07-13 | The dust guard and its installation method of a kind of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191291A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242440A (en) * | 2019-07-23 | 2019-09-17 | 西安航天动力研究所 | A kind of high pressure staged combustion cycle engine Multifunctional split-type thrust chamber protective device |
| CN110849599A (en) * | 2019-10-11 | 2020-02-28 | 平高集团有限公司 | Contact finger pressing force test and inspection device |
| CN111336014A (en) * | 2020-03-07 | 2020-06-26 | 岳保丽 | Aviation gas turbine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068090A (en) * | 1980-01-29 | 1981-08-05 | Messerschmitt Boelkow Blohm | Closure for ram-jets |
| JPS62276248A (en) * | 1986-05-26 | 1987-12-01 | Nissan Motor Co Ltd | Nozzle closure for rocket motor |
| KR20040034783A (en) * | 2002-10-17 | 2004-04-29 | 한국항공우주연구원 | Rocket Engine Throat Plug for Sealing and Safekeeping |
| CN201151030Y (en) * | 2008-01-30 | 2008-11-19 | 四川石油天然气建设工程有限责任公司 | Inner protection device for pipeline welding |
| KR20120045736A (en) * | 2010-11-01 | 2012-05-09 | 한국항공우주연구원 | Sealing plug for a rocket engine chamber |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
| CN205370789U (en) * | 2016-01-25 | 2016-07-06 | 湖北航天化学技术研究所 | A dampproofing sealed blanking cover for solid rocket engine combustion chamber |
| CN106287101A (en) * | 2016-08-30 | 2017-01-04 | 湖北三江航天江北机械工程有限公司 | The adhering method of solid rocket motor nozzle and flexible blanking cover and sealing frock |
| CN207004676U (en) * | 2017-07-13 | 2018-02-13 | 西安航天动力研究所 | A kind of dust guard of engine |
-
2017
- 2017-07-13 CN CN201710569980.0A patent/CN107191291A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068090A (en) * | 1980-01-29 | 1981-08-05 | Messerschmitt Boelkow Blohm | Closure for ram-jets |
| JPS62276248A (en) * | 1986-05-26 | 1987-12-01 | Nissan Motor Co Ltd | Nozzle closure for rocket motor |
| KR20040034783A (en) * | 2002-10-17 | 2004-04-29 | 한국항공우주연구원 | Rocket Engine Throat Plug for Sealing and Safekeeping |
| CN201151030Y (en) * | 2008-01-30 | 2008-11-19 | 四川石油天然气建设工程有限责任公司 | Inner protection device for pipeline welding |
| KR20120045736A (en) * | 2010-11-01 | 2012-05-09 | 한국항공우주연구원 | Sealing plug for a rocket engine chamber |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
| CN205370789U (en) * | 2016-01-25 | 2016-07-06 | 湖北航天化学技术研究所 | A dampproofing sealed blanking cover for solid rocket engine combustion chamber |
| CN106287101A (en) * | 2016-08-30 | 2017-01-04 | 湖北三江航天江北机械工程有限公司 | The adhering method of solid rocket motor nozzle and flexible blanking cover and sealing frock |
| CN207004676U (en) * | 2017-07-13 | 2018-02-13 | 西安航天动力研究所 | A kind of dust guard of engine |
Non-Patent Citations (2)
| Title |
|---|
| 柯金友 韩树楷: "火箭弹构造与作用", 30 April 1994, 北京理工大学出版社, pages: 16 - 17 * |
| 陈守芳: "液体火箭发动机喉部堵盖的一种新方案", vol. 28, no. 3, pages 7 - 10 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242440A (en) * | 2019-07-23 | 2019-09-17 | 西安航天动力研究所 | A kind of high pressure staged combustion cycle engine Multifunctional split-type thrust chamber protective device |
| CN110242440B (en) * | 2019-07-23 | 2020-08-18 | 西安航天动力研究所 | Multifunctional split type thrust chamber protection device for high-pressure afterburning engine |
| CN110849599A (en) * | 2019-10-11 | 2020-02-28 | 平高集团有限公司 | Contact finger pressing force test and inspection device |
| CN110849599B (en) * | 2019-10-11 | 2021-10-01 | 平高集团有限公司 | Contact finger pressing force test and inspection device |
| CN111336014A (en) * | 2020-03-07 | 2020-06-26 | 岳保丽 | Aviation gas turbine |
| CN111336014B (en) * | 2020-03-07 | 2021-08-20 | 陕西蓝天上航空俱乐部有限公司 | Aviation gas turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107191291A (en) | The dust guard and its installation method of a kind of engine | |
| CN207004676U (en) | A kind of dust guard of engine | |
| US9290276B2 (en) | Lightning protection fastener and aircraft | |
| KR101346507B1 (en) | Wheel bearing joint unit | |
| CN106641253A (en) | Sealing system for fasteners | |
| US20140255152A1 (en) | Fan track liner designed to yield next to fan case hook | |
| JP5753961B1 (en) | Hot water storage tank unit and manufacturing method thereof | |
| CN108442593A (en) | A kind of glass curtain wall of adjustable-angle | |
| CN106149314A (en) | A kind of lower margin and washing machine | |
| CN202358306U (en) | Thermal protection structure for tail segment of aircraft | |
| CN208233383U (en) | A kind of unmanned plane | |
| CN102606782B (en) | For control unit being fixed to the fixing device on heat exchanger valve chest | |
| CN205156486U (en) | Cooling device of explosion -proof operation post | |
| CN205579349U (en) | Underground lamp | |
| KR20120069328A (en) | Vibration support beam to guarantee the safety of the nozzle for high altitude firing test | |
| CN205124189U (en) | Explosion -proof operation post convenient to installation | |
| CN207728700U (en) | A kind of T-bolt with circular arc | |
| CN208831615U (en) | A kind of aviation helicopter tail rotor transmission tension device dedicated | |
| CN206775266U (en) | Motor sealing structure | |
| CN207351048U (en) | The mounting structure of refrigerator and its compressor | |
| CN203488946U (en) | Easily mounted rocker arm type television stand | |
| CN111140621A (en) | Flight control box damping structure and aircraft thereof | |
| CN205715212U (en) | Automobile-used dual-fastening packing ring | |
| CN210244693U (en) | Exhibition is with simulating driving experience cabin | |
| CN110143298B (en) | Support structure of single impact reducing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |