CN220869532U - Spiral nested type grain of variable thrust solid-liquid rocket engine - Google Patents
Spiral nested type grain of variable thrust solid-liquid rocket engine Download PDFInfo
- Publication number
- CN220869532U CN220869532U CN202322852618.8U CN202322852618U CN220869532U CN 220869532 U CN220869532 U CN 220869532U CN 202322852618 U CN202322852618 U CN 202322852618U CN 220869532 U CN220869532 U CN 220869532U
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- grain
- shell
- rocket engine
- liquid rocket
- casing
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 40
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 239000002360 explosive Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 235000015842 Hesperis Nutrition 0.000 description 4
- 235000012633 Iberis amara Nutrition 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of solid-liquid rocket engines, in particular to a spiral nested type grain of a variable-thrust solid-liquid rocket engine, which comprises a grain shell and a spray pipe shell, wherein two grain bodies are arranged in the grain shell, two bolts are arranged between the grain shell and the spray pipe shell, nuts are connected to the outer sides of the bolts in a threaded manner, a reinforcing assembly is arranged between the grain shell and the spray pipe shell, and the reinforcing assembly comprises two fixed bins which are respectively fixedly connected with two sides of the grain shell. This become spiral nested formula grain of thrust solid-liquid rocket engine through setting up reinforcement subassembly, can be in solid-liquid rocket engine operation in-process, consolidate between grain casing and the spray tube casing by the spliced pole and handle, improve the stability between grain casing and the spray tube casing, guarantee the sealed effect between grain casing and the spray tube casing for rocket can normal operating.
Description
Technical Field
The utility model relates to the technical field of solid-liquid rocket engines, in particular to a spiral nested grain of a variable-thrust solid-liquid rocket engine.
Background
The rocket engine is the most main power device of various rockets, missiles and spacecrafts, the development of the rocket engine plays a very important role in improving the performances of the rockets, the missiles and the spacecrafts, therefore, the development of rocket engine technology is a key factor for determining the development progress of aerospace science and technology, all countries engaged in aerospace industry pay attention to the development and improvement work of the rocket engine, the application of the liquid rocket engine and the solid rocket engine is very wide at present, although the technology of the liquid rocket engine and the solid rocket engine is mature, the solid rocket engine has certain defects at the same time, and the solid rocket engine has the advantages of the two engines, and has great application potential in the fields of sounding rockets, small carrier rockets, attitude control engines, tactical missiles, even combined ramjet engines and the like.
For example, publication number CN103967653a, proposes an axial injection end-fire solid-liquid rocket engine structure comprising an engine head cover, a grain shell, a grain insulation layer, an end-fire grain, a nozzle shell and a nozzle insulation layer; the front end of the explosive column shell is provided with an engine head cover, and the rear end of the explosive column shell is provided with a spray pipe shell; the engine head cover is provided with an air inlet channel, but in the using process, the explosive column shell and the spray pipe shell are mostly connected and fixed through the matching of bolts and nuts, and as the rocket engine drives the rocket to lift off and fly, vibration can be generated, the loosening of the bolts can occur, and the normal operation of the rocket is influenced, so that the spiral nested explosive column of the variable-thrust solid-liquid rocket engine is provided.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a spiral nested type grain of a variable thrust solid-liquid rocket engine, which has the advantages of stable connection and the like, and solves the problems that the normal operation of a rocket is influenced because the spiral nested type grain is mostly connected and fixed through the cooperation of bolts and nuts and the bolt loosens possibly due to vibration generated in the process that the rocket engine drives the rocket to lift off and fly.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the spiral nested type grain of the variable thrust solid-liquid rocket engine comprises a grain shell and a spray pipe shell, wherein a grain body is arranged in the grain shell, two bolts are arranged between the grain shell and the spray pipe shell, nuts are connected to the outer sides of the bolts in a threaded manner, and a reinforcing component is arranged between the grain shell and the spray pipe shell;
The reinforcing component comprises two fixed bins which are fixedly connected with two sides of the grain shell respectively, the left sides of the fixed bins are rotationally connected with worms, the two inner walls of one sides opposite to the fixed bins are rotationally connected with threaded rods, the outer sides of the threaded rods are fixedly connected with worm wheels, the outer sides of the threaded rods are connected with connecting columns in a threaded manner, the outer sides of the connecting columns are fixedly connected with movable plates, limit grooves which are two in number are formed in the spray pipe shell, and the left sides of the spray pipe shell are fixedly connected with sealing rings.
Through adopting above-mentioned technical scheme, conveniently carry out reinforcement processing by the spliced pole between to grain casing and the spray tube casing when using, improve the stability between grain casing and the spray tube casing.
Further, the limit groove is matched with the connecting column in size, and one end of the worm penetrates through the fixed bin and is rotationally connected with the right inner wall of the fixed bin
Through adopting above-mentioned technical scheme, the spliced pole passes through the spacing groove and is connected with the spray tube casing when conveniently using.
Further, the worm is intermeshed with the worm wheel.
By adopting the technical scheme, the worm is convenient to drive the worm wheel to rotate along with rotation when in use.
Further, the left and right sides of fixed storehouse has all seted up the spout, the slider of spout sliding connection is all fixedly connected with in the left and right sides of fly leaf.
Through adopting above-mentioned technical scheme, the fly leaf is convenient when using to slide in the spout through the slider.
Further, one end of the connecting column penetrates through and extends to the outer side of the fixed bin.
Through adopting above-mentioned technical scheme, the spliced pole stretches out to the activity of fixed storehouse outside when conveniently using.
Further, a sealing groove matched with the sealing ring in size is formed in the right side of the grain shell.
By adopting the technical scheme, the sealing ring is convenient to improve the tightness between the grain shell and the spray pipe shell when in use.
Further, a thread groove in threaded connection with the threaded rod is formed in the connecting column.
Through adopting above-mentioned technical scheme, the threaded rod drives the spliced pole when conveniently rotating when using and removes.
Further, the cartridge housing is engaged with the spout housing.
Through adopting above-mentioned technical scheme, the sealed effect of being connected of grain casing and spray tube casing is guaranteed when conveniently using.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
This become spiral nested formula grain of thrust solid-liquid rocket engine through setting up reinforcement subassembly, can be in solid-liquid rocket engine operation in-process, consolidate between grain casing and the spray tube casing by the spliced pole and handle, improve the stability between grain casing and the spray tube casing, guarantee the sealed effect between grain casing and the spray tube casing for rocket can normal operating.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is an enlarged view of the structure of fig. 1a according to the present utility model.
In the figure: 1. a cartridge housing; 2. a grain body; 3. a nozzle housing; 4. a bolt; 5. a nut; 6. a fixed bin; 7. a worm; 8. a threaded rod; 9. a worm wheel; 10. a connecting column; 11. a movable plate; 12. a chute; 13. a slide block; 14. a seal ring; 15. and a limit groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, a spiral nested type grain of a variable thrust solid-liquid rocket engine in this embodiment includes a grain shell 1 and a nozzle shell 3, the grain shell 1 is embedded with the nozzle shell 3, a grain body 2 is disposed in the grain shell 1, two bolts 4 are disposed between the grain shell 1 and the nozzle shell 3, the two bolts 4 are disposed at the top and bottom of the grain shell 1 respectively, nuts 5 are screwed on the outer sides of the bolts 4, and a reinforcing component is disposed between the grain shell 1 and the nozzle shell 3.
The reinforcing component comprises two fixed bins 6 which are fixedly connected with two sides of the grain shell 1 respectively, a worm 7 is rotationally connected to the left side of the fixed bins 6, one end of the worm 7 penetrates through the fixed bins 6 and is rotationally connected with the right side inner wall of the fixed bins 6, threaded rods 8 are rotationally connected to the inner walls of the opposite sides of the two fixed bins 6, worm wheels 9 are fixedly connected to the outer sides of the threaded rods 8, the worm 7 and the worm wheels 9 are meshed with each other, and the self-locking performance of the worm wheels 9 and the worm 7 is achieved, so that the connecting column 10 cannot move at will, and the stability of connection between the grain shell 1 and the spray pipe shell 3 can be improved. Simultaneously, the outside threaded connection at threaded rod 8 has spliced pole 10, the thread groove with threaded rod 8 threaded connection has been seted up to spliced pole 10's inside, conveniently drive spliced pole 10 when threaded rod 8 rotates during the use and remove, spliced pole 10 one end runs through and extends to the outside fixedly connected with fly leaf 11 of spliced pole 10 in the outside of fixed storehouse 6, spout 12 has all been seted up to the left and right sides of fixed storehouse 6, the slider 13 of spout 12 sliding connection is all fixedly connected with in the left and right sides of fly leaf 11, fly leaf 11 accessible slider 13 slides on spout 12 that fixed storehouse 6 inside was seted up, limit groove 15 that is two in quantity has been seted up on the spray tube casing 3, limit groove 15 and spliced pole 10's size looks adaptation, spray tube casing 3's left side fixedly connected with sealing washer 14, the seal groove with sealing washer 14 looks adaptation has been seted up on the right side of spray tube casing 1, can improve the leakproofness between the explosive column casing 1 and the spray tube casing 3.
Referring to fig. 1, the number of segments of each group of helical blades in the hollow cylindrical shell of the grain body 2 is calculated, and high-withdrawal-rate fuel is poured and filled in the helical channels formed by the adjacent helical blades to form the spiral nested grain, so that the combustion state of the high-withdrawal-rate fuel in the helical channels can be ensured.
It should be noted that, through setting up the reinforcement subassembly, can be in the operation process of solid-liquid rocket engine, consolidate between grain casing 1 and the spray tube casing 3 by spliced pole 10 and handle, improve the stability between grain casing 1 and the spray tube casing 3, guarantee the sealed effect between grain casing 1 and the spray tube casing 3 for rocket can normal operating.
The working principle of the embodiment is as follows:
This become spiral nested formula grain of thrust solid-liquid rocket engine, through reinforcement subassembly, in the equipment in-process with grain casing 1 and spray tube casing 3, with grain casing 1 and the gomphosis of grain body 2, make seal circle 14 and the last seal groove that sets up of grain casing 1 be connected, then be connected fixedly to grain casing 1 and grain body 2 through bolt 4 and nut 5 cooperation, then through rotating worm 7, make the worm wheel 9 with worm 7 meshing rotatory through threaded rod 8, threaded rod 8 pivoted in-process, drive fly leaf 11 and slide in spout 12 through slider 13, and then promote the spliced pole 10 and stretch out to the outside of fixed storehouse 6, make fixed storehouse 6 and spray tube casing 3 on set up spacing groove 15 be connected, consolidate between grain casing 1 and the spray tube casing 3, stability between improvement grain casing 1 and the spray tube casing 3, guarantee the sealed effect between grain casing 1 and the spray tube casing 3, make rocket can normal operating.
Claims (8)
1. The utility model provides a become spiral nested grain of thrust solid-liquid rocket engine, includes grain casing (1) and spray tube casing (3), its characterized in that: the novel explosive cartridge is characterized in that a explosive cartridge body (2) is arranged in the explosive cartridge shell (1), two bolts (4) are arranged between the explosive cartridge shell (1) and the spray pipe shell (3), nuts (5) are connected to the outer sides of the bolts (4) in a threaded mode, and a reinforcing component is arranged between the explosive cartridge shell (1) and the spray pipe shell (3);
The reinforcing component comprises two fixed bins (6) which are fixedly connected with two sides of a grain shell (1) respectively, wherein the left sides of the fixed bins (6) are rotationally connected with worms (7), the two inner walls of the opposite sides of the fixed bins (6) are rotationally connected with threaded rods (8), the outer sides of the threaded rods (8) are fixedly connected with worm wheels (9), connecting columns (10) are connected with outer threads of the threaded rods (8), movable plates (11) are fixedly connected with the outer sides of the connecting columns (10), limit grooves (15) with two numbers are formed in the spray pipe shell (3), and sealing rings (14) are fixedly connected with the left sides of the spray pipe shell (3).
2. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: the limit groove (15) is matched with the connecting column (10) in size, and one end of the worm (7) penetrates through the fixed bin (6) and is rotationally connected with the right inner wall of the fixed bin (6).
3. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: the worm (7) is meshed with the worm wheel (9).
4. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: the left and right sides of fixed storehouse (6) have all seted up spout (12), the slider (13) of spout (12) sliding connection are all fixedly connected with in the left and right sides of fly leaf (11).
5. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: one end of the connecting column (10) penetrates through and extends to the outer side of the fixed bin (6).
6. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: and a sealing groove matched with the sealing ring (14) in size is formed in the right side of the grain shell (1).
7. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: the inside of the connecting column (10) is provided with a thread groove in threaded connection with the threaded rod (8).
8. The spiral nested grain of a variable thrust solid-liquid rocket engine of claim 1, wherein: the grain shell (1) is embedded with the spray pipe shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322852618.8U CN220869532U (en) | 2023-10-24 | 2023-10-24 | Spiral nested type grain of variable thrust solid-liquid rocket engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322852618.8U CN220869532U (en) | 2023-10-24 | 2023-10-24 | Spiral nested type grain of variable thrust solid-liquid rocket engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220869532U true CN220869532U (en) | 2024-04-30 |
Family
ID=90820862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322852618.8U Active CN220869532U (en) | 2023-10-24 | 2023-10-24 | Spiral nested type grain of variable thrust solid-liquid rocket engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220869532U (en) |
-
2023
- 2023-10-24 CN CN202322852618.8U patent/CN220869532U/en active Active
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