CN108194231A - A kind of small-scale solid rocket motor jet pipe blanking cover - Google Patents
A kind of small-scale solid rocket motor jet pipe blanking cover Download PDFInfo
- Publication number
- CN108194231A CN108194231A CN201711357894.XA CN201711357894A CN108194231A CN 108194231 A CN108194231 A CN 108194231A CN 201711357894 A CN201711357894 A CN 201711357894A CN 108194231 A CN108194231 A CN 108194231A
- Authority
- CN
- China
- Prior art keywords
- blanking cover
- jet pipe
- small
- rocket motor
- solid rocket
- 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
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
- F02K9/97—Rocket nozzles
- F02K9/978—Closures for nozzles; Nozzles comprising ejectable or discardable elements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of jet pipe blanking cover more particularly to a kind of small-scale solid rocket motor blanking covers.Blanking cover connection screw thread and cut groove are provided on jet pipe blanking cover, jet pipe blanking cover is connect by blanking cover connection screw thread with jet pipe housing sidewall, and cut groove is set on blanking cover and jet pipe contact surface.Solid propellant rocket blanking cover provided by the present invention improves the reliability of solid propellant rocket work, suitable for most of small-scale solid rocket motor, it can be achieved that blanking cover is reliably connected.
Description
Technical field
The present invention relates to a kind of jet pipe blanking cover more particularly to a kind of small-scale solid rocket motor blanking covers.
Background technology
Jet pipe blanking cover is one of critical component of solid propellant rocket, and major function has two aspects：First, sealing is anti-
Tide prevents outside air from entering combustion chamber, influences solid propellant rocket storage life；Second is that provide wink in engine ignition
When closed container, combustion gas is made to stay for some time in the combustion chamber, engine is helped to build pressure rapidly, shortening ignition delay time,
Realize reliable ignition.Existing jet pipe blanking cover use is bonded or welded mode and is fixed in jet pipe other parts.Bonding way is by viscous
The influence of the factors such as surface treatment situation, specific technique for sticking and condition of cure is connect, adhesive property is unstable, and long term storage
In, aging or embrittlement under cryogenic due to bonding agent so that gas leak phenomenon occurs for bonding site part unsticking.Welding
Mode is suitable for jet pipe blanking cover and is same metal material to pipe fitting, and application range is narrow.
Invention content
The technical problems to be solved by the invention：
The present invention provides a kind of small-scale solid rocket motor blanking cover, realizes being reliably connected for blanking cover, improves solid-rocket and starts
The reliability of machine work, suitable for most of small-scale solid rocket motor.
The technical solution adopted in the present invention：
A kind of small-scale solid rocket motor jet pipe blanking cover, the blanking cover 3 are equipped with blanking cover connection screw thread 4, and jet pipe blanking cover leads to
It crosses blanking cover connection screw thread 4 to connect with jet pipe housing sidewall, is provided with cut groove 5 on the jet pipe blanking cover, cut groove is set to stifled
On lid and jet pipe contact surface.
Preferably, the blanking cover connection screw thread 4 is connect by sealing ring 2 with jet pipe side wall.
Beneficial effects of the present invention：
The present invention provides a kind of small-scale solid rocket motor blanking cover, realizes being reliably connected for blanking cover, improves solid-rocket and starts
The reliability of machine work, suitable for most of small-scale solid rocket motor.
Description of the drawings
Fig. 1：Jet pipe blanking cover and jet pipe housing connection diagram.
Fig. 2：Jet pipe blocking cover structure schematic diagram.
Fig. 3：Jet pipe housing and jet pipe blanking cover connecting portion structure diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
As illustrated in fig. 1 and 2, a kind of small-scale solid rocket motor jet pipe blanking cover, the blanking cover 3 are connected equipped with blanking cover
Screw thread 4, jet pipe blanking cover are connect by blanking cover connection screw thread 4 with jet pipe housing sidewall, and cut groove is provided on the jet pipe blanking cover,
Cut groove is set on blanking cover and jet pipe contact surface.The blanking cover connection screw thread 4 is connect by sealing ring 2 with jet pipe side wall.
When it is implemented, being required according to nozzle closure opening pressure, cut groove 5 and connection screw thread 4,7 sizes are calculated.2 side of sealing ring
Seal compression selects 15%.Jet pipe blanking cover of the present invention by sealing ring 2 in use, be installed to jet pipe housing seal slot 6, in sealing ring 2
Surface applies a small amount of lubricating grease, and jet pipe blanking cover 3 is installed to jet pipe housing 1, completes the installation of jet pipe blanking cover.
Claims (3)
1. a kind of small-scale solid rocket motor jet pipe blanking cover, it is characterised in that：The blanking cover（3）It is equipped with blanking cover and connects spiral shell
Line（4）, jet pipe blanking cover passes through blanking cover connection screw thread（4）It is connect with jet pipe housing sidewall, shearing is provided on the jet pipe blanking cover
Slot（5）, cut groove is set on blanking cover and jet pipe contact surface.
2. jet pipe blanking cover according to claim 1, it is characterised in that：The blanking cover connection screw thread（4）Pass through sealing ring
（2）It is connect with jet pipe side wall.
3. jet pipe blanking cover according to claim 2, it is characterised in that：The sealing ring seal compression is 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357894.XA CN108194231A (en) | 2017-12-17 | 2017-12-17 | A kind of small-scale solid rocket motor jet pipe blanking cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711357894.XA CN108194231A (en) | 2017-12-17 | 2017-12-17 | A kind of small-scale solid rocket motor jet pipe blanking cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194231A true CN108194231A (en) | 2018-06-22 |
Family
ID=62574747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711357894.XA Pending CN108194231A (en) | 2017-12-17 | 2017-12-17 | A kind of small-scale solid rocket motor jet pipe blanking cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194231A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026445A (en) * | 2018-07-12 | 2018-12-18 | 上海新力动力设备研究所 | Multi nozzle solid attitude control engine blocking cover structure |
| CN110259608A (en) * | 2019-06-19 | 2019-09-20 | 湖北三江航天红峰控制有限公司 | A kind of solid rail control engine jet pipe blanking cover |
| CN110905686A (en) * | 2019-10-30 | 2020-03-24 | 北京动力机械研究所 | Multi-flow-path combined engine starting protection structure |
| CN111502862A (en) * | 2020-04-29 | 2020-08-07 | 内蒙动力机械研究所 | Plug-in type low pass filter |
| CN112523902A (en) * | 2020-11-30 | 2021-03-19 | 内蒙动力机械研究所 | 3D printing-based composite material fixing shell for spray pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204438928U (en) * | 2014-12-09 | 2015-07-01 | 晋西工业集团有限责任公司 | A kind of civil rocket bullet monoblock type projectile tail |
| CN106930866A (en) * | 2017-01-26 | 2017-07-07 | 北京航空航天大学 | A kind of solid-liquid rocket ground experiment jet pipe blocking cover structure |
-
2017
- 2017-12-17 CN CN201711357894.XA patent/CN108194231A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204438928U (en) * | 2014-12-09 | 2015-07-01 | 晋西工业集团有限责任公司 | A kind of civil rocket bullet monoblock type projectile tail |
| CN106930866A (en) * | 2017-01-26 | 2017-07-07 | 北京航空航天大学 | A kind of solid-liquid rocket ground experiment jet pipe blocking cover structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026445A (en) * | 2018-07-12 | 2018-12-18 | 上海新力动力设备研究所 | Multi nozzle solid attitude control engine blocking cover structure |
| CN110259608A (en) * | 2019-06-19 | 2019-09-20 | 湖北三江航天红峰控制有限公司 | A kind of solid rail control engine jet pipe blanking cover |
| CN110905686A (en) * | 2019-10-30 | 2020-03-24 | 北京动力机械研究所 | Multi-flow-path combined engine starting protection structure |
| CN111502862A (en) * | 2020-04-29 | 2020-08-07 | 内蒙动力机械研究所 | Plug-in type low pass filter |
| CN112523902A (en) * | 2020-11-30 | 2021-03-19 | 内蒙动力机械研究所 | 3D printing-based composite material fixing shell for spray pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108194231A (en) | A kind of small-scale solid rocket motor jet pipe blanking cover | |
| CN109806523A (en) | A kind of extinguishing device and extinguishing device control method | |
| KR20140053983A (en) | Automatic fire extinguishing apparatus for an electric automobile | |
| CN109026445B (en) | Multi-nozzle solid attitude control engine blanking cover structure | |
| US10639858B2 (en) | Flat-tire repair kit | |
| CN202500675U (en) | High-pressure-resistant starting box based on non-metallic capsule | |
| CN110185918B (en) | High-pressure composite container | |
| JP5590584B1 (en) | Gas pressure type tire repair sealant bottle | |
| CN207864240U (en) | A kind of chemical flow-process pump | |
| CN202561135U (en) | Vacuumizing and nitrogen charging protective device of oxygen valve | |
| US20130134707A1 (en) | Pipe coupling for the fluid-tight attachment of components in an air conditioning system | |
| CN203809179U (en) | High pressure fuel pipe for railway locomotives | |
| JP5818004B2 (en) | Sealing plate for sealed electrochemical devices | |
| CN108799510A (en) | A kind of rotation assembled canister shut-off valve | |
| US8602064B2 (en) | Fluid passage closure system in compressor | |
| CN113063001B (en) | Multifunctional low-pressure integrated valve and control method thereof | |
| US6537044B2 (en) | Scroll compressor sealing unit structure | |
| CN208722972U (en) | A kind of safe deflation structure of lithium dynamical battery shell | |
| CN211145382U (en) | Built-in emergency cut-off valve of low-temperature storage tank | |
| CN207588602U (en) | A kind of motor and threaded connector | |
| CN107965597A (en) | One kind sealing snifting valve and storage battery | |
| CN209071505U (en) | A kind of battery cap and lithium battery | |
| JP2013143370A5 (en) | ||
| CN102767691B (en) | Self-tightening type quick-mounted anti-explosion vacuum-pumping device | |
| CN208024944U (en) | A kind of unloading valve drive shaft seal |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |