CN203499853U - Rocket propellant grain fixing device - Google Patents
Rocket propellant grain fixing device Download PDFInfo
- Publication number
- CN203499853U CN203499853U CN201320430843.6U CN201320430843U CN203499853U CN 203499853 U CN203499853 U CN 203499853U CN 201320430843 U CN201320430843 U CN 201320430843U CN 203499853 U CN203499853 U CN 203499853U
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- CN
- China
- Prior art keywords
- positioning body
- grain
- mounting groove
- ring
- fixing device
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- Expired - Fee Related
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Abstract
The utility model relates to a rocket propellant grain fixing device and belongs to the field of a rocket engine. The grain fixing device disclosed by the utility model comprises a sealing ring, an elastic check ring and a positioning body; the positioning body is a circular ring-shaped structure formed by carrying out die pressing on a metal material and a non-metallic material; the outer edge of the end part of the front end of the positioning body extends forwards to form arc supporting sheets uniformly distributed; the arc supporting sheets of the positioning body are embedded into an engine grain and are wound with the grain into one whole body by bandages; the grain fixed with the positioning body is limited backwards by the check ring; and the sealing ring is arranged in a sealing ring mounting groove of the positioning body. According to the utility model, reliable connection of the sticky grain and a rigid shell is implemented; the position of the grain is relatively fixed; sealing of the rear end of the grain is reinforced; rigidity of the grain is improved; and by the added sealing ring structure, gas in the front can be stopped from penetrating into a clamped position, temperature rising of the engine is stabilized and the rocket propellant grain fixing device has important practical value.
Description
Technical field
The utility model relates to a kind of rocket propellant column fixer, belongs to rocket motor field.
background technique
Tradition is freely loaded motor and is relied on the axial compression of grate and jet pipe to realize powder column axial restraint.Along with powder column burning, the critical molten state that is of viscosity powder column component, powder column intensity, rigidity weaken.Powder column pine dress in firing chamber lacks that effectively machinery is fixing, may rotate, the dangerous situation such as avalanche disintegration under high pressure draught effect.Traditional solid prescription method is used for to internal bore burning type powder column, if the sealing of powder column rear end is only compressed to guarantee by jet pipe, high-temperature fuel gas very easily impacts metal drug blocking device, makes the too fast rising heat of its temperature pass to powder column, thereby causes the problems such as motor local superheating.
model utility content
The purpose of this utility model is easily to cause the problems such as motor local superheating in order to solve the rocket projectile drug blocking device of conventional construction, and the utility model provides a kind of rocket propellant column fixer.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rocket propellant column fixer of the present utility model, comprises seal ring, circlip and positioning body;
Positioning body is that metallic material and nonmetallic material mold pressing form cirque structure, nonmetallic material are positioned at the inside of ring positioning body, the sidewall of metallic material is processed with seal ring mounting groove and the back-up ring mounting groove of circumferential fluting, and uniform arc support plate is extended forward in the outer of metallic material front end end;
The rear end inwall of rocket projectile firing chamber is processed with the back-up ring mounting groove of circumferential fluting, and the arc support plate of positioning body embeds motor grain, and by bandage, arc support plate and the powder column of positioning body is wound in to one; The powder column that is fixed with positioning body inserts from rear end, rocket projectile firing chamber, the back-up ring mounting groove of the back-up ring mounting groove of positioning body and rocket projectile firing chamber is aligned, and place back-up ring in two mounting grooves that align, and the powder column that makes to be fixed with positioning body is spacing backward; In the seal ring mounting groove of positioning body, place seal ring.
Beneficial effect
The utility model has been realized the positive connection of viscosity powder column and stiff case, makes powder column position relatively curing, has strengthened the sealing of powder column rear end, has increased powder column rigidity; And by the ring structure increasing, can intercept anterior combustion gas to the infiltration of wedging position, and stablize motor temperature rise, there is important use value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model powder column fixing device;
Fig. 2 is the structural representation of positioning body in the utility model powder column fixing device;
1-rocket projectile firing chamber; 2-seal ring; 3-circlip; 4-positioning body.
Embodiment
Below in conjunction with drawings and Examples, content of the present utility model is further described.
Embodiment
A kind of rocket propellant column fixer of the present utility model, as shown in Figure 1, comprises seal ring 2, circlip 3 and positioning body 4;
Positioning body 4 forms cirque structure for metallic material and nonmetallic material mold pressing, nonmetallic material are positioned at the inside of ring positioning body, the sidewall of metallic material is processed with seal ring mounting groove and the back-up ring mounting groove of circumferential fluting, and uniform arc support plate is extended forward in the outer of metallic material front end end;
The rear end inwall of rocket projectile firing chamber 1 is processed with the back-up ring mounting groove of circumferential fluting, and the arc support plate of positioning body 4 embeds motor grain, and by bandage, arc support plate and the powder column of positioning body 4 is wound in to one; The powder column that is fixed with positioning body 4 inserts 1 rear end from rocket projectile firing chamber, the back-up ring mounting groove of the back-up ring mounting groove of positioning body 4 and rocket projectile firing chamber 1 is aligned, and place back-up ring 3 in two mounting grooves that align, and the powder column that makes to be fixed with positioning body 4 is spacing backward; In the seal ring mounting groove of positioning body 4, place seal ring.
Claims (1)
1. a rocket propellant grain fixing device, is characterized in that: comprise seal ring, circlip and positioning body;
Positioning body is cirque structure, and nonmetallic material are positioned at the inside of ring positioning body, and the sidewall of metallic material is processed with seal ring mounting groove and the back-up ring mounting groove of circumferential fluting, and uniform arc support plate is extended forward in the outer of metallic material front end end;
The rear end inwall of rocket projectile firing chamber is processed with the back-up ring mounting groove of circumferential fluting, and the arc support plate of positioning body embeds motor grain, and by bandage, arc support plate and the powder column of positioning body is wound in to one; The powder column that is fixed with positioning body inserts from rear end, rocket projectile firing chamber, the back-up ring mounting groove of the back-up ring mounting groove of positioning body and rocket projectile firing chamber is aligned, and place back-up ring in two mounting grooves that align, and the powder column that makes to be fixed with positioning body is spacing backward; In the seal ring mounting groove of positioning body, place seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430843.6U CN203499853U (en) | 2013-07-19 | 2013-07-19 | Rocket propellant grain fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430843.6U CN203499853U (en) | 2013-07-19 | 2013-07-19 | Rocket propellant grain fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499853U true CN203499853U (en) | 2014-03-26 |
Family
ID=50330840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320430843.6U Expired - Fee Related CN203499853U (en) | 2013-07-19 | 2013-07-19 | Rocket propellant grain fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499853U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105684800A (en) * | 2016-02-22 | 2016-06-22 | 西安近代化学研究所 | Hail suppression and rain enhancement bullet engine and manufacturing method thereof |
| CN104612856B (en) * | 2014-11-28 | 2016-07-06 | 西安近代化学研究所 | A kind of band medicine reel stress release device |
| CN106121862A (en) * | 2016-08-11 | 2016-11-16 | 西北工业大学 | A kind of solid rocket motor grain fixing device |
| CN107162864A (en) * | 2017-04-25 | 2017-09-15 | 西北工业大学 | A kind of hybrid motor fuel powder column and the integral process of preparing of ignition charge |
| CN110966116A (en) * | 2019-11-08 | 2020-04-07 | 上海新力动力设备研究所 | Free charge grain assembly fixture of solid rocket engine |
| CN110985236A (en) * | 2019-12-30 | 2020-04-10 | 西安航科等离子体科技有限公司 | Supporting device and supporting method for end face combustion explosive column of solid rocket engine |
| CN114382612A (en) * | 2020-10-19 | 2022-04-22 | 内蒙古工业大学 | High-energy explosive column filling device |
-
2013
- 2013-07-19 CN CN201320430843.6U patent/CN203499853U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612856B (en) * | 2014-11-28 | 2016-07-06 | 西安近代化学研究所 | A kind of band medicine reel stress release device |
| CN105684800A (en) * | 2016-02-22 | 2016-06-22 | 西安近代化学研究所 | Hail suppression and rain enhancement bullet engine and manufacturing method thereof |
| CN106121862A (en) * | 2016-08-11 | 2016-11-16 | 西北工业大学 | A kind of solid rocket motor grain fixing device |
| CN107162864A (en) * | 2017-04-25 | 2017-09-15 | 西北工业大学 | A kind of hybrid motor fuel powder column and the integral process of preparing of ignition charge |
| CN107162864B (en) * | 2017-04-25 | 2018-10-16 | 西北工业大学 | A kind of hybrid motor fuel powder column and ignition charge one process of preparing |
| CN110966116A (en) * | 2019-11-08 | 2020-04-07 | 上海新力动力设备研究所 | Free charge grain assembly fixture of solid rocket engine |
| CN110985236A (en) * | 2019-12-30 | 2020-04-10 | 西安航科等离子体科技有限公司 | Supporting device and supporting method for end face combustion explosive column of solid rocket engine |
| CN114382612A (en) * | 2020-10-19 | 2022-04-22 | 内蒙古工业大学 | High-energy explosive column filling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160719 |