CN208887490U - A kind of steering engine thermal protection struc ture - Google Patents
A kind of steering engine thermal protection struc ture Download PDFInfo
- Publication number
- CN208887490U CN208887490U CN201721889495.3U CN201721889495U CN208887490U CN 208887490 U CN208887490 U CN 208887490U CN 201721889495 U CN201721889495 U CN 201721889495U CN 208887490 U CN208887490 U CN 208887490U
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- China
- Prior art keywords
- steering engine
- leading portion
- thermal protection
- shell
- jet pipe
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Abstract
The utility model discloses a kind of steering engine thermal protection struc tures, the structure is in the rounding cone barrel of truncation, leading portion is defined as at the top of the rounding cone cylinder, bottom is defined as back segment, the inner peripheral surface of the rounding cone cylinder is the outer isolation face being made of steel plate (1), the heat that the flame that barrier jet pipe (6) sprays backward is radiated to steering engine (5), outer peripheral surface is the joint face being made of asbestos pad (2), the joint face extend from back segment to leading portion respectively with shell of the projectile body (4), steering engine (5) and jet pipe (6) are tightly connected, the structural arrangement is in engine tail portion by shell of the projectile body (4), steering engine (5) and jet pipe (6) and motor body (7) surround made of in truncation rounding cone cylinder cavity in.The utility model structure is conducive to the shunting and ejection of engine wake flame, guarantees the radiation of engine wake flame, is heated at reflux and the pressure of bottom environment acts directly on thermal protection struc ture, and this is simple and reliable for structure, material is cheap and easy to get.
Description
Technical field
The utility model relates to a kind of steering engine thermal protection struc tures, belong to steering engine thermal protection technology field.
Background technique
Steering engine is the executive component of missile control system, is mounted on inside body.Steering engine, which also proximates, in the case of certain starts
Tail jet pipe, steering engine needs thermal protection at this time, short spraying because engine wake flame has the characteristics that high temperature, high pressure and enthalpy
The steering engine near jet pipe can be caused to burn in time.Thermal protection generally passes through the heat-insulated material of heat insulating coat or thickness in cabin
Material realizes that coating spraying temperature is high, and thermal insulation layer occupied space is larger；Therefore it is located near nozzle in the prior art
The effect is unsatisfactory for the actual thermal protection of steering engine thermal protection.To solve the above-mentioned problems, needing to design one kind can be with body
Connected thermal protection struc ture, this thermal protection struc ture must be able to withstand the radiation of engine wake flame, be heated at reflux and bottom environment
Pressure, protect steering engine from burning.
Utility model content
Based on above-mentioned purpose, the utility model provides firstly a kind of steering engine thermal protection struc ture, and the structure is fallen in truncation
Taper barrel is defined as leading portion at the top of the rounding cone cylinder, and bottom is defined as back segment, and the inner peripheral surface of the rounding cone cylinder is served as reasons
The outer isolation face that steel plate is constituted, the heat that the flame that barrier jet pipe sprays backward is radiated to steering engine, outer peripheral surface are by asbestos pad
The joint face of composition, the joint face extends from back segment to leading portion to be tightly connected with shell of the projectile body, steering engine and jet pipe respectively, institute
State structural arrangement falling in truncation made of engine tail portion is surrounded as shell of the projectile body, steering engine and jet pipe and motor body
In taper cone barrel cavity.
In a preferred embodiment, the steel plate leading portion is taper barrel, and taper and jet pipe inner surface are most
Latter section of taper is identical, and back segment is cylindrical shape, leading portion back segment vertical transition；The leading portion and back segment and steel plate leading portion and mistake of asbestos pad
It is consistent to cross section shape.
In a highly preferred embodiment, steel plate and asbestos pad are seamless connectivity.
In a preferred embodiment, steel plate back segment outer surface and shell of the projectile body leading portion inner surface are by radially
The screw four of distribution connects.
In another preferred embodiment, asbestos pad inner surface and steel plate leading portion outer surface bonding are integral, asbestos
Pad outer surface and the fitting of shell of the projectile body leading portion inner surface.
It is further preferable that the back segment end face that the steel plate and asbestos pad extend to jet pipe is equipped with sealing ring.
Secondly, the utility model additionally provides a kind of target missile for being assembled with any of the above-described structure.
In a preferred embodiment, the target missile has shell of the projectile body, steering engine, rudderpost, rudder face, jet pipe and hair
Motivation shell structure element, the steering engine are fixed on shell of the projectile body, jet pipe, motor body and any of the above-described rudder
In the seal cavity that machine thermal protection struc ture surrounds.
In a highly preferred embodiment, the steering engine, rudderpost and rudder face are connected by screw one.
It is further preferable that motor body back segment inner surface is connected with jet pipe leading portion outer surface by major thread, start
Casing body back segment and shell of the projectile body leading portion are connected by radially distributed screw two, and shell of the projectile body and steering engine are by radially dividing
The screw three of cloth connects.
The utility model is insufficient for current steering engine thermal protection technology, discloses a kind of steering engine thermal protection struc ture and is mounted with this
The target missile of structure solves the problems, such as the steering engine thermal protection under single spraying pipe engine, and proves such steering engine by thermodynamics emulation
It is effective that thermal protection struc ture designs reasonable.
Steering engine thermal protection struc ture provided by the utility model has three big crucial technical characteristics, and brings skill outstanding
Art effect:
1. thermal protection struc ture is divided into two layers inside and outside, steel plate is heat-resisting in outer surface, and asbestos pad is insulated in inner surface, two layers of gapless
Connection.Its structural parameters such as steel plate thickness, asbestos mat thickness is related to engine tail portion thermal environment, general to be determined by test,
Or after first passing through analysis of Heat Transfer determination, then use verification experimental verification.According to simulation result, only 2mm steel plate can be to general solid
Heat of engine generates good isolation effect, and stickup 2~3mm or more asbestos pad, which can enhance, to be thermally isolated.If space allows,
Thickness can be increased.
2. thermal protection struc ture is relative to being to seal inside endpiece, front end face is connected with nozzle rear end face, outside
Surface is connected with shell of the projectile body inner surface.It, will not be directly in endpiece when being sprayed outward backward this guarantees engine wake flame
Portion has an impact, but the radiation of engine wake flame, is heated at reflux and the pressure of bottom environment acts directly on thermal protection struc ture.
3. thermal protection struc ture Front-end Design is at taper barrel, the more conducively shunting and ejection of engine wake flame, while sufficiently benefit
Design is optimized with inner space, produces more excellent heat release at columnar thermal protection struc ture than Front-end Design and imitates
Fruit.
The simple easy processing of steering engine thermal protection struc ture with above structure technical characteristic, the cost of material is low, easy for installation, accounts for
It is smaller with space.In practical applications, steering engine can be made to be effectively isolated with engine wake flame heat, and be conducive to point of engine wake flame
Stream and ejection.Therefore its structure of steering engine thermal protection struc ture design provided by the utility model is simple and effective, is worthy to be popularized and answers
With.
Detailed description of the invention
Fig. 1 steering engine thermal protection struc ture longitudinal sectional drawing；
The full parallax stereogram of Fig. 2 steering engine thermal protection struc ture；
Temperature cloud picture near steering engine when Fig. 3 band steering engine shield；
Temperature cloud picture near steering engine when Fig. 4 is without steering engine shield.
Description of symbols:
1: steel plate
2: asbestos pad
3: sealing ring
4: shell of the projectile body
5: steering engine
51: rudderpost
52: rudder face
6: jet pipe
7: motor body
8: screw one
9: screw two
10: screw three
11: screw four
Specific embodiment
Further describe the utility model combined with specific embodiments below, the advantages of the utility model and feature will be with
Description and it is apparent.But examples are merely exemplary for these, does not constitute to the protection scope of the utility model any
Limitation.
Embodiment 1:
Fig. 1 shows the longitudinal sectional drawing for being mounted with one embodiment of target missile of the utility model steering engine thermal protection struc ture,
Fig. 2 is the full parallax stereogram of the embodiment.The target missile has shell of the projectile body 4, steering engine 5, rudderpost 51, rudder face 52,6 and of jet pipe
7 structural detail of motor body, the steering engine 5 are fixed on shell of the projectile body 4, jet pipe 6, motor body 7 and steering engine solar heat protection
In the seal cavity that structure surrounds.7 back segment inner surface of motor body is connected with 6 leading portion outer surface of jet pipe by major thread,
7 back segment of motor body and 4 leading portion of shell of the projectile body are connected by radially distributed screw 29, and shell of the projectile body 4 and steering engine 5 are logical
It crosses radially distributed screw 3 10 to connect, the steering engine 5, rudderpost 51 and rudder face 52 are connected by screw 1.
The steering engine thermal protection struc ture is in the rounding cone barrel of truncation, is made of steel plate 1, asbestos pad 2 and sealing ring 3.It is described
Be defined as leading portion at the top of rounding cone cylinder, bottom is defined as back segment, the inner peripheral surface of the rounding cone cylinder be made of steel plate 1 it is outer
Isolation face, the heat that the flame that barrier jet pipe 6 sprays backward is radiated to steering engine 5, outer peripheral surface is the connection being made of asbestos pad 2
Face, the joint face extends from back segment to leading portion to be tightly connected with shell of the projectile body 4, steering engine 5 and jet pipe 6 respectively, steel plate 1 and stone
The back segment end face that cotton pad 2 extends to jet pipe 6 is equipped with sealing ring 3.The structural arrangement is in engine tail portion by shell of the projectile body
4, in the rounding cone cylinder cavity of truncation made of steering engine 5 and jet pipe 6 and motor body 7 surround.
The 1 back segment outer surface of steel plate and 4 leading portion inner surface of shell of the projectile body of steering engine thermal protection struc ture pass through radially distributed
The connection of screw 4 11,2 inner surface of asbestos pad and 1 leading portion outer surface of steel plate bonding or similar fashion seamless connectivity are integral, stone
2 outer surface of cotton pad and the fitting of 4 leading portion inner surface of shell of the projectile body, sealing ring 3 are installed on 6 rear end face of jet pipe and steel plate 1, asbestos
It pads between 2 front end faces.1 leading portion of steel plate is taper barrel, and taper is identical with 6 inner surface final stage taper of jet pipe, back segment
For cylindrical shape, leading portion back segment vertical direction transition；2 leading portion back segment of asbestos pad is consistent with 1 leading portion changeover portion shape of steel plate.
2. heat insulation simulation analysis of embodiment
It is emulated with heat insulation of the Ansys to steering engine shield, gas is arranged with a thickness of 2mm in simulation model light plate
Dynamic to heat caused 85 DEG C of hull-skin temperature, 1000 DEG C of engine wake flame temperature, compared by 90 DEG C of jet pipe hull-skin temperature
The temperature transmitting of steering engine ambient enviroment, simulation result are shown in Fig. 3 and Fig. 4 respectively in the case of two kinds of no steering engine shield.It is not advised in figure
Then curve is different range temperature region sideline, and color is deeper, and to represent temperature higher.As can be seen from the figure jet pipe flame heat
Amount is completely isolated except shield (see the darker regions on the right side of Fig. 3), and reducing jet pipe flame heat regulating is influencing steering engine just
The risk often to work.
The embodiments of the present invention sufficiently show that the utility model steering engine thermal protection struc ture has three big crucial technologies
Feature, and bring technical effect outstanding:
1. thermal protection struc ture is divided into two layers inside and outside, steel plate is heat-resisting in outer surface, and asbestos pad is insulated in inner surface, two layers of gapless
Connection.Its structural parameters such as steel plate thickness, asbestos mat thickness is related to engine tail portion thermal environment, general to be determined by test,
Or after first passing through analysis of Heat Transfer determination, then use verification experimental verification.According to simulation result, only 2mm steel plate can be to general solid
Heat of engine generates good isolation effect, and stickup 2~3mm or more asbestos pad, which can enhance, to be thermally isolated.If space allows,
Thickness can be increased.
2. thermal protection struc ture is relative to being to seal inside endpiece, front end face is connected with nozzle rear end face, outside
Surface is connected with shell of the projectile body inner surface.It, will not be directly in endpiece when being sprayed outward backward this guarantees engine wake flame
Portion has an impact, but the radiation of engine wake flame, is heated at reflux and the pressure of bottom environment acts directly on thermal protection struc ture.
3. thermal protection struc ture Front-end Design is at taper barrel, the more conducively shunting and ejection of engine wake flame, while sufficiently benefit
Design is optimized with inner space, produces more excellent heat release at columnar thermal protection struc ture than Front-end Design and imitates
Fruit.
The simple easy processing of steering engine thermal protection struc ture with above structure technical characteristic, the cost of material is low, easy for installation, accounts for
It is smaller with space.In practical applications, steering engine can be made to be effectively isolated with engine wake flame heat, and be conducive to point of engine wake flame
Stream and ejection.Therefore its structure of steering engine thermal protection struc ture design provided by the utility model is simple and effective, is worthy to be popularized and answers
With.
Claims (10)
1. a kind of steering engine thermal protection struc ture, which is characterized in that the structure is in the rounding cone barrel of truncation, the top of the rounding cone cylinder
Portion is defined as leading portion, and bottom is defined as back segment, and the inner peripheral surface of the rounding cone cylinder is the outer isolation face being made of steel plate (1), resistance
Every the heat that the flame that jet pipe (6) sprays backward is radiated to steering engine (5), outer peripheral surface is the joint face being made of asbestos pad (2),
The joint face extends from back segment to leading portion to be tightly connected with shell of the projectile body (4), steering engine (5) and jet pipe (6) respectively, the knot
Structure is placed in made of engine tail portion is surrounded as shell of the projectile body (4), steering engine (5) and jet pipe (6) and motor body (7)
In the rounding cone cylinder cavity of truncation.
2. steering engine thermal protection struc ture according to claim 1, which is characterized in that steel plate (1) leading portion is taper barrel,
Taper is identical with jet pipe (6) inner surface final stage taper, and back segment is cylindrical shape, leading portion back segment vertical transition；Asbestos pad (2)
Leading portion and back segment it is consistent with the leading portion of steel plate (1) and changeover portion shape.
3. steering engine thermal protection struc ture according to claim 2, which is characterized in that steel plate (1) is gapless company with asbestos pad (2)
It connects.
4. steering engine thermal protection struc ture according to claim 1, which is characterized in that steel plate (1) back segment outer surface and body shell
Body (4) leading portion inner surface is connected by radially distributed screw four (11).
5. steering engine thermal protection struc ture according to claim 1, which is characterized in that asbestos pad (2) inner surface and steel plate (1) leading portion
Outer surface bonding is integral, asbestos pad (2) outer surface and the fitting of shell of the projectile body (4) leading portion inner surface.
6. steering engine thermal protection struc ture according to claim 5, which is characterized in that the steel plate (1) and asbestos pad (2) extend to
The back segment end face of jet pipe (6) is equipped with sealing ring (3).
7. a kind of target missile, which is characterized in that the target missile is assembled with any steering engine thermal protection struc ture of claim 1-6.
8. target missile according to claim 7, the target missile has shell of the projectile body (4), steering engine (5), rudderpost (51), rudder face
(52), jet pipe (6) and motor body (7) structural detail, which is characterized in that the steering engine (5) is fixed on shell of the projectile body
(4), in the seal cavity that jet pipe (6), motor body (7) and the structure surround.
9. target missile according to claim 8, which is characterized in that the steering engine (5), rudderpost (51) and rudder face (52) pass through spiral shell
Follow closely one (8) connection.
10. target missile according to claim 9, which is characterized in that motor body (7) back segment inner surface and jet pipe (6)
Leading portion outer surface is connected by major thread, and motor body (7) back segment and shell of the projectile body (4) leading portion pass through radially distributed spiral shell
Two (9) connection is followed closely, shell of the projectile body (4) and steering engine (5) are connected by radially distributed screw three (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889495.3U CN208887490U (en) | 2017-12-28 | 2017-12-28 | A kind of steering engine thermal protection struc ture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889495.3U CN208887490U (en) | 2017-12-28 | 2017-12-28 | A kind of steering engine thermal protection struc ture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887490U true CN208887490U (en) | 2019-05-21 |
Family
ID=66490193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889495.3U Withdrawn - After Issue CN208887490U (en) | 2017-12-28 | 2017-12-28 | A kind of steering engine thermal protection struc ture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208887490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007280A (en) * | 2017-12-28 | 2018-05-08 | 北京威标至远科技发展有限公司 | A kind of steering engine thermal protection struc ture |
-
2017
- 2017-12-28 CN CN201721889495.3U patent/CN208887490U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007280A (en) * | 2017-12-28 | 2018-05-08 | 北京威标至远科技发展有限公司 | A kind of steering engine thermal protection struc ture |
| CN108007280B (en) * | 2017-12-28 | 2023-08-15 | 北京威标至远科技发展有限公司 | Steering engine heat-proof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Heat proof structure of steering gear Effective date of registration: 20220314 Granted publication date: 20190521 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING WEIBIAO ZHIYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022990000098 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220923 Granted publication date: 20190521 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING WEIBIAO ZHIYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2022990000098 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A thermal resistant structure for steering gear Effective date of registration: 20230703 Granted publication date: 20190521 Pledgee: Beijing ustron Tongsheng financing Company limited by guarantee Pledgor: BEIJING WEIBIAO ZHIYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023990000336 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20230815 |