CN205477971U - Prevent structure of ablating - Google Patents
Prevent structure of ablating Download PDFInfo
- Publication number
- CN205477971U CN205477971U CN201620022359.3U CN201620022359U CN205477971U CN 205477971 U CN205477971 U CN 205477971U CN 201620022359 U CN201620022359 U CN 201620022359U CN 205477971 U CN205477971 U CN 205477971U
- Authority
- CN
- China
- Prior art keywords
- hold
- burn
- down ring
- proof structure
- sealing ring
- 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.)
- Expired - Fee Related
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- Gasket Seals (AREA)
Abstract
The utility model provides a prevent structure of ablating, including clamp ring and sealing washer, the outer wall of clamp ring be stepped cylinder body, install in rocket projectile motor case, step face and the cooperation of connector body, the big diameter section outer wall of clamp ring are opened flutedly along circumference, place the sealing washer in the recess, rocket projectile motor case inner wall and connector body, clamp ring between paint non -drying putty. The utility model discloses low cost, simple process, protection motor case that can be reliable is not by the flame ablation.
Description
Technical field
The invention belongs to ammunition technology field, for solving the ablation problem of a kind of civil rocket bullet motor body.
Background technology
During developing certain civilian low-cost rocket bullet, in order to reduce cost, rocket engine major part parts are adopted
By nonmetallic materials, but in process of the test, find time burning by powder column in rocket projectile motor housing forward end screw thread position
High temperature, high pressure flame gas burn, cause the duty of engine to lose efficacy.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of burn-out proof structure, and with low cost, technique is simple,
Can protect motor body not by flame ablation reliably.
The technical solution adopted for the present invention to solve the technical problems is: include hold-down ring and sealing ring.
The outer wall of described hold-down ring is stepped cylinder, is arranged in rocket projectile motor housing, step surface and connector
Body fits, the enlarged diameter section outer wall of hold-down ring circumferentially has groove, has placement sealing ring in groove；Described fire
Non-drying putty is smeared between arrow bullet motor body inwall and connector body, hold-down ring.
Described hold-down ring bonds together with connector body.
Reduced diameter section one end of described hold-down ring is closed by diaphragm seal.
Described sealing ring be cross section be the circulus of rectangle.
Described sealing ring uses flame retardant rating to be the silicone rubber of FV-0；Described hold-down ring is glass steel material.
Interference fit between described sealing ring and rocket projectile motor housing.
The invention has the beneficial effects as follows: when engine ignition, sealing ring and the greasy molecular double barrier of non-drying can
Effectively to stop flame gas to enter connector body and housing junction, protective housing is not burnt, and present invention knot
Structure is simple, low cost, meets this kind of ammunition requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure, 1-connector body, 2-housing, 3-diaphragm seal, 4-non-drying putty, 5-sealing ring, 6-hold-down ring,
7-fore-stock, 8-powder column.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following embodiment.
A kind of burn-out proof structure that the present invention provides specifically includes hold-down ring and sealing ring.Sealing ring is enclosed within hold-down ring,
Hold-down ring bonds together with being connected body；Sealing ring be cross section be the circulus of rectangle, material is a kind of fire-retardant etc.
The silicone rubber of level FV-0, does not burns in engine working process；Hold-down ring is glass steel material, and its cylindrical adds
Fluted being used for of work places sealing ring, uses interference fit, housing forward end screw thread tail end 2～3 between housing and sealing ring
Button uniform application non-drying putty, this non-drying putty has resistance to fire-retardant, the feature of good seal.
Embodiments of the invention are as it is shown in figure 1, sealing ring 5 is enclosed within the groove of hold-down ring 6, and diaphragm seal is placed on connection
In body body, then hold-down ring 6 is put into connector body 1 (hold-down ring and the contact surface of connector body by diagram
Upper uniform application seals fastening glue), after solidification 24h, connector is placed fore-stock 7, powder column 8 etc. in order,
Again housing 2 nose threads tail end 2～3 button uniform application silica gel non-drying putty 4 is screwed with connector body by diagram
Put in place.
Claims (6)
1. a burn-out proof structure, including hold-down ring and sealing ring, it is characterised in that: the outer wall of described hold-down ring is platform
Rank cylinder, is arranged in rocket projectile motor housing, step surface and connector body fits, the major diameter of hold-down ring
Section outer wall circumferentially has groove, has placement sealing ring in groove；Described rocket projectile motor inner walls and company
Non-drying putty is smeared between junctor body, hold-down ring.
Burn-out proof structure the most according to claim 1, it is characterised in that: described hold-down ring glues with connector body
It is connected together.
Burn-out proof structure the most according to claim 1, it is characterised in that: reduced diameter section one end of described hold-down ring
Closed by diaphragm seal.
Burn-out proof structure the most according to claim 1, it is characterised in that: described sealing ring be cross section be rectangle
Circulus.
Burn-out proof structure the most according to claim 1, it is characterised in that: described sealing ring employing flame retardant rating is
The silicone rubber of FV-0；Described hold-down ring is glass steel material.
Burn-out proof structure the most according to claim 1, it is characterised in that: described sealing ring and rocket projectile motor
Interference fit between housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022359.3U CN205477971U (en) | 2016-01-11 | 2016-01-11 | Prevent structure of ablating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022359.3U CN205477971U (en) | 2016-01-11 | 2016-01-11 | Prevent structure of ablating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477971U true CN205477971U (en) | 2016-08-17 |
Family
ID=56666016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022359.3U Expired - Fee Related CN205477971U (en) | 2016-01-11 | 2016-01-11 | Prevent structure of ablating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870206A (en) * | 2017-03-29 | 2017-06-20 | 北京航空航天大学 | A kind of quick response solid-liquid rocket combines powder column |
-
2016
- 2016-01-11 CN CN201620022359.3U patent/CN205477971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870206A (en) * | 2017-03-29 | 2017-06-20 | 北京航空航天大学 | A kind of quick response solid-liquid rocket combines powder column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160817 Termination date: 20180111 |