CN203285567U - Combined type spray pipe structure - Google Patents
Combined type spray pipe structure Download PDFInfo
- Publication number
- CN203285567U CN203285567U CN2013202741095U CN201320274109U CN203285567U CN 203285567 U CN203285567 U CN 203285567U CN 2013202741095 U CN2013202741095 U CN 2013202741095U CN 201320274109 U CN201320274109 U CN 201320274109U CN 203285567 U CN203285567 U CN 203285567U
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- spray pipe
- tubular construction
- sections
- combined type
- larynx
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Abstract
The utility model discloses a combined type spray pipe structure, and relates to a spray pipe of a solid rocket engine. The combined type spray pipe structure comprises a spray pipe body, the spray pipe body is formed by combining and fixing at least two sections, and the connecting position of two adjacent sections is located at the crossing position of a spray pipe contraction section and a spray throat straight pipe section. According to the combined type spray pipe structure, under the premise of ensuring the high reliability, stability and safety of a system, the material cost of parts, the machining cost of the parts and assembling difficulty are greatly lowered, and the combined type spray pipe structure can be used repeatedly.
Description
Technical field
The utility model relates to a kind of jet pipe of solid propellant rocket, is applicable to the rocket motor that various metallic material and nonmetallic material are made, and according to ambient temperature, requires the interim big-block engine of selecting jet pipe.
Background technique
In the middle of the structure of existing solid propellant rocket is generally, the parts such as the end, forward and backward grate, firing chamber and jet pipe form, and, because solid propellant rocket has simple in structurely, safeguard easily, the reliability high, widely due in military and civilian's product.Jet pipe is as the vital part of rocket motor, and is most important on the state impact of motor.Because the jet pipe of rocket motor is in use bearing washing away of high temperature, high-speed fuel gas stream, the larynx path portion of jet pipe easily is out of shape.And motor generally is divided into the motor of disposable use and Reusability, and the former is mainly used in some tactics, strategic arms, and warhead is rendered to predetermined zone, and the latter is mainly used in stationary engine test and some booster rockets.For reusable motor in order to guarantee the conformity of working state, the general disposable jet pipe that adopts, reusable jet pipe is high especially to material and processing request, and tends to the skew of the state that produces in reusing process, thereby affects the using effect of system.For some big-block engine that uses according to ambient temperature, owing to selecting jet pipe according to weather conditions at that time, so assemble powder charge and motor at scene temporarily, all higher to personnel and the equipment requirement of assembling, and exist larger security risk.
The model utility content
The purpose of this utility model is: propose a kind of the assurance under high system reliability, stability and Security prerequisite, the reusable combined jet tubular construction that the cost of material of part, the processing cost of part and assembling difficulty greatly reduce.
The purpose of this utility model realizes by following technical proposals:
A kind of combined jet tubular construction, comprise spout body, and described spout body is fixedly formed by at least two sections combinations, and wherein have the joint of adjacent two sections to be positioned at jet pipe converging portion and the intersection that sprays the larynx straight length.
As optimal way, described joint, near described spray larynx straight length, is divided into large section with described jet pipe converging portion, and the segment at described spray larynx straight length place.
As optimal way, described spout body is fixedly formed by two sections combinations.
, as optimal way, fix through a fixed block for two sections of described spout body.
As optimal way, described spout body is provided with the fixing part that is fixed with described fixed block.
As optimal way, described fixed block is a ring-type gland.
As optimal way, described fixing part is an annular convex, and described gland is located in the ring of described annular convex and is mated fixing.
The beneficial effects of the utility model: the inventor herein is according to the analysis to engine behavior, and disposable jet pipe uses the analysis of rear ablation situation.The major part of finding the jet pipe converging portion does not have ablation substantially, occurs that the most serious part of ablation exists, jet pipe converging portion and the intersection that sprays the larynx straight length., with the jet pipe segmentation of original integral type, only will spray larynx place section after each the use and change for this reason, guarantee like this working state when motor is reused, thus the reliability and stability of the system of assurance.
This patent sprays larynx by replacing in use at every turn, has guaranteed that motor reuses in process the conformity of spray larynx diameter, thereby has guaranteed the conformity of engine behavior.Make the reliability stability of system all increase, especially for test system, the authenticity of data and directiveness are better.Due to each spray larynx section of only changing, make the size reduction of part, reduced greatly the cost of material of part and the processing cost of part.
For the engine system of selecting spray larynx diameter according to environmental conditions, can in advance system be assembled completely, according to the requirement of field condition, after selected spray larynx diameter, the spray larynx with suitable, be fixed on nozzle component with fixed block.Simplified and used on-the-spot duties to process, and the Security of assembling.Simultaneously also shorten the site-assembled cycle, thereby improved the ability of battlefield response.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment's nozzle component;
Fig. 2 is the structural representation of the utility model embodiment's spray larynx;
Fig. 3 is the utility model embodiment's structural representation;
In figure, 1 is the jet pipe converging portion, and 2 are spray larynx straight length, and 3 is joint, and 4 is nozzle divergence cone, and 5 is gland, and 6 is annular convex.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figures 1 to 3, a kind of combined jet tubular construction, comprise spout body, and spout body is fixedly formed by at least two sections combinations, and wherein have the joint 3 of adjacent two sections be positioned at jet pipe converging portion 1 with the intersection that sprays larynx straight length 2 or spray on larynx straight length 2.As optimal way, as shown in this embodiment, spout body is fixedly formed by two sections combinations, joint 3, near spray larynx straight length 2, is divided into two sections with jet pipe converging portion 1, is respectively large section, and the segment (namely spraying larynx straight length 2 place segments) that is connected with spray larynx straight length 2, comprise this large section for nozzle component, what comprise this segment is the spray larynx, this spray larynx comprise jet pipe converging portion 1 segment, spray larynx straight length 2 and nozzle divergence cone 4.Fix through a fixed block for two sections of this spout body, spout body is provided with the fixing part that is fixed with fixed block.As optimal way, as shown in this embodiment, fixed block is a ring-type gland 5, and fixing part is an annular convex 6, and gland 5 is located in the ring of annular convex 6 and is mated fixing.
Workflow of the present utility model: two sections jet pipes (nozzle component and spray larynx) are assembled into the one (see figure 3) by gland 5.Only will spray larynx after each the use and change, guarantee like this working state when motor is reused, thus the reliability and stability of the system of assurance.
For the engine system of selecting spray larynx diameter according to environmental conditions, can in advance system be assembled completely, according to the requirement of field condition, after selected spray larynx diameter, the spray larynx with suitable, be fixed on nozzle component with gland 5.Simplified and used on-the-spot duties to process, and the Security of assembling.Simultaneously also shorten the site-assembled cycle, thereby improved the ability of battlefield response.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a combined jet tubular construction, comprise spout body, it is characterized in that: described spout body is fixedly formed by at least two sections combinations, and wherein has the joint of adjacent two sections to be positioned at jet pipe converging portion and the intersection that sprays the larynx straight length.
2. combined jet tubular construction as claimed in claim 1 is characterized in that: described joint, near described spray larynx straight length, is divided into large section with described jet pipe converging portion, and the segment at described spray larynx straight length place.
3. combined jet tubular construction as claimed in claim 2, it is characterized in that: described spout body is fixedly formed by two sections combinations.
4. combined jet tubular construction as claimed in claim 3, is characterized in that: fix through a fixed block for two sections of described spout body.
5. combined jet tubular construction as claimed in claim 4, it is characterized in that: described spout body is provided with the fixing part that is fixed with described fixed block.
6. combined jet tubular construction as claimed in claim 5, it is characterized in that: described fixed block is a ring-type gland.
7. combined jet tubular construction as claimed in claim 6, it is characterized in that: described fixing part is an annular convex, described gland is located in the ring of described annular convex and is mated fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202741095U CN203285567U (en) | 2013-05-20 | 2013-05-20 | Combined type spray pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202741095U CN203285567U (en) | 2013-05-20 | 2013-05-20 | Combined type spray pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285567U true CN203285567U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202741095U Expired - Lifetime CN203285567U (en) | 2013-05-20 | 2013-05-20 | Combined type spray pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612858A (en) * | 2015-01-29 | 2015-05-13 | 南京理工大学 | Adjustable double-pulse solid rocket engine jet pipe testing device |
| CN105089853A (en) * | 2015-08-25 | 2015-11-25 | 南京理工大学 | Combined exhaust pipe for solid rocket engine |
-
2013
- 2013-05-20 CN CN2013202741095U patent/CN203285567U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612858A (en) * | 2015-01-29 | 2015-05-13 | 南京理工大学 | Adjustable double-pulse solid rocket engine jet pipe testing device |
| CN105089853A (en) * | 2015-08-25 | 2015-11-25 | 南京理工大学 | Combined exhaust pipe for solid rocket engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
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| CX01 | Expiry of patent term |