CN209991873U - Non-explosive separation device based on explosive bolt - Google Patents
Non-explosive separation device based on explosive bolt Download PDFInfo
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- CN209991873U CN209991873U CN201920215083.4U CN201920215083U CN209991873U CN 209991873 U CN209991873 U CN 209991873U CN 201920215083 U CN201920215083 U CN 201920215083U CN 209991873 U CN209991873 U CN 209991873U
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Abstract
The utility model relates to an aerospace equipment technical field, concretely relates to non-firer separator based on explosion bolt, include: at least one explosive bolt, which is internally provided with an air cavity for containing high-pressure gas; and the high-pressure gas cylinder is communicated with the gas cavity of the explosive bolt through at least one pipeline and is used for conveying the high-pressure gas stored inside to the gas cavity of the explosive bolt through the pipeline and applying acting force for separating the explosive bolt. The utility model provides a repeatedly usable, with low costs to can not produce harmful gas's non-firer separator based on explosion bolt.
Description
Technical Field
The utility model relates to an aerospace equipment technical field, concretely relates to non-firer separator based on explosion bolt.
Background
The traditional rocket section separation, whether the interstage separation or the fairing separation and the like are separated by using explosion bolts, the initiating explosive device is disposable and has a high price, the initiating explosive device is separated for one time, and related matched products and the like are disposable products, such as detonating cords, manifolds, detonators and the like. Chemical energy generated by the detonation of the detonator is transmitted to the separated initiating explosive through the manifold and the detonating cord to be detonated and separated for unlocking, all initiating explosive such as main explosive, secondary explosive and the like are exhausted after being detonated once, and the whole set of separating and unlocking device cannot be reused after being used once, so that the cost of the rocket is increased, and meanwhile, harmful gas is generated when gunpowder is combusted or exploded to pollute the environment.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art fireman divides the dissociation locking device can only disposable and can produce harmful gas when gunpowder burning or explosion, the defect of polluted environment to provide a repeatedly usable, with low costs, and can not produce the non-fireman separator based on explosion bolt of harmful gas.
In order to solve the technical problem, the utility model provides a non-explosive separation device based on explosion bolt, include:
at least one explosive bolt, which is internally provided with an air cavity for containing high-pressure gas;
and the high-pressure gas cylinder is communicated with the gas cavity of the explosive bolt through at least one pipeline and is used for conveying the high-pressure gas stored inside to the gas cavity of the explosive bolt through the pipeline and applying acting force for separating the explosive bolt.
Furthermore, the number of the high-pressure gas cylinders is one, and an electromagnetic valve for adjusting the on-off state of the high-pressure gas cylinders and the explosion bolts is arranged on the pipeline.
Furthermore, the number of the explosion bolts is at least two, the electromagnetic valves comprise a first electromagnetic valve and a second electromagnetic valve which are respectively connected with the high-pressure gas cylinder, and each explosion bolt is respectively connected with the first electromagnetic valve and the second electromagnetic valve through two pipelines.
Further, the explosive bolt is a weakening groove type explosive bolt.
Further, weaken slot type explosion bolt include the bolt body, locate the inside piston rod of bolt body with locate the cell body on the periphery wall of bolt body, the piston rod moves under high-pressure gas's effect to crossing the position of cell body, it is right explosion bolt applys separating force.
Furthermore, the air cavity is formed at one end, far away from the groove body, of the bolt body and extends to the stress end of the piston rod.
Further, the explosive bolt is a shear pin type explosive bolt.
Further, the shear pin type explosive bolt comprises a bolt body, a bolt rod fixedly connected with the bolt body and a pin body used for connecting the bolt body and the bolt rod, wherein the air cavity is arranged in the bolt body and extends to the stress end of the bolt rod.
Further, the axial direction of the pin body is perpendicular to the axial direction of the bolt rod.
Furthermore, a one-way valve for preventing high-pressure gas from flowing back is arranged at the joint of the explosion bolt and the pipeline.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a non-explosive separation device based on explosion bolt stores high-pressure gas in the high-pressure gas cylinder, provides explosion bolt through the pipeline, and high-pressure gas enters into explosion bolt's air cavity, exerts an effort that makes explosion bolt separation, makes explosion bolt divide into two parts to realize the separation unblock of separating face, compare in prior art, the utility model provides a product except that explosion bolt all can used repeatedly, is favorable to reducing the cost of aerospace, avoids the condition of once using of the explosive separation device that comprises the explosive work such as main powder charge, secondary powder charge among the prior art, thereby realizes the purpose that reduces the carrier rocket cost; meanwhile, non-pollution high-pressure gas is selected as the initiation energy, so that harmful gas generated after gunpowder is combusted or exploded is avoided, and the pollution to the environment is avoided.
2. The utility model provides a non-firer separator based on explosion bolt, high-pressure cylinder is one be equipped with on the pipeline and be used for adjusting high-pressure cylinder with the solenoid valve of explosion bolt break-make state. The time, the flow velocity and other parameters of the high-pressure gas entering the explosive bolt are controlled through the electromagnetic valve, so that the high-pressure gas in the high-pressure gas cylinder accurately enters the explosive bolt, the explosion time of the explosive bolt is controlled, and the separation time of the rocket separation section is controlled.
3. The utility model provides a non-firer separator based on explosion bolt, the explosion bolt is at least two, the solenoid valve including respectively with first solenoid valve and second solenoid valve, every that high-pressure gas cylinder connects the explosion bolt all through two pipelines respectively with first solenoid valve with the second solenoid valve is connected. The electromagnetic valves and the pipelines are arranged in a redundant mode, so that in the process of actual operation, when one of the electromagnetic valves or one of the pipelines fails, any one of the electromagnetic valves and the pipeline can still be normally used, and the reliability of the separating device is improved.
4. The utility model provides a non-firer separator based on explosion bolt with the junction of pipeline is equipped with the check valve that prevents the high-pressure gas backward flow. The check valve effectively prevents that the high-pressure gas from flowing back to the pipeline after entering into the explosion bolt, prevents that the high-pressure gas pressure that fills in the explosion bolt reduces, leads to the required high-pressure gas of explosion not enough to influence the explosion time of explosion bolt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a non-explosive separation device based on explosive bolts according to the present invention;
FIG. 2 is a schematic structural view of the weakened slotted explosive bolt of FIG. 1;
FIG. 3 is a schematic structural view of the shear pin type explosive bolt of FIG. 1;
description of reference numerals:
1-a pipe joint; 2-the bolt body; 3-an air cavity; 4-sealing ring; 5-a nut; 6-connecting piece;
7-a trough body; 8-a piston mandril; 9-a pin body; 10-bolt shank; 11-an inflation valve; 12-a high pressure gas cylinder;
13-a first solenoid valve; 14-a second solenoid valve; 15-pipeline; 16-explosive bolts;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
One particular embodiment of a non-pyrotechnic separation device based on explosive bolts as shown in fig. 1-3, comprises:
at least one explosive bolt 16, inside of which is provided with an air cavity 3 for containing high-pressure air;
and at least one high-pressure gas bottle 12 which is communicated with the gas cavity 3 of the explosive bolt 16 through at least one pipeline 15 and is used for conveying the internally stored high-pressure gas into the gas cavity 3 of the explosive bolt 16 through the pipeline 15 and applying a force for separating the explosive bolt 16.
The front end of a high-pressure gas cylinder 12 is also provided with an inflation valve 11, before the carrier rocket is launched, the high-pressure gas (the high-pressure gas is about 30-90 MPa) is filled into the high-pressure gas cylinder 12 through the inflation valve 11 in advance, so that the high-pressure gas is stored in the high-pressure gas cylinder 12, at least one high-pressure gas cylinder 12 conveys the high-pressure gas into a gas cavity 3 of an explosive bolt 16 through at least one pipeline 15, and under the action of the high-pressure gas, the explosive bolt 16 is separated from a part connected with a rocket separation end.
As a specific embodiment, the high-pressure gas cylinder 12 is one, and an electromagnetic valve for adjusting the on-off state of the high-pressure gas cylinder 12 and the explosive bolt 16 is arranged on the pipeline 15. Before the separation of the separation section, the electromagnetic valve is charged in advance, and a separation signal transmitted by a control system is received during separation, so that high-pressure gas in the high-pressure gas bottle 12 is controlled to reach the gas cavity 3 of the explosive bolt 16 along the pipeline 15 at supersonic speed, the explosive bolt 6 is separated and unlocked by the acting force of the high-pressure gas acting on the explosive bolt 6, and the separation of the parts of the carrier rocket is realized.
In a specific embodiment, there are two explosion bolts 16, the electromagnetic valves include a first electromagnetic valve 13 and a second electromagnetic valve 14 respectively connected to the high-pressure gas cylinder 12, and each explosion bolt 16 is connected to the first electromagnetic valve 13 and the second electromagnetic valve 14 respectively through two pipelines 15. The electromagnetic valves are a first electromagnetic valve 13 and a second electromagnetic valve 14 which are connected in parallel and are connected with a high-pressure gas bottle 12, the first electromagnetic valve 13 and the second electromagnetic valve 14 need to select the same parts, so that the separation consistency is ensured, the same first electromagnetic valve 13 and the same second electromagnetic valve 14 are adopted, each explosion bolt 16 is connected with two pipelines 15, and the separation of the explosion bolts 16 can be caused as long as the high-pressure gas in one pipeline 15 reaches the explosion bolt 16.
In this embodiment, 4 explosive bolts 16, a first electromagnetic valve 13 and a second electromagnetic valve 14 are arranged on one separating surface, and the pipelines are connected with the explosive bolts 16 in a 2 × 4 redundant manner, so long as one of the pipelines 15 can convey high-pressure gas to the explosive bolts 16, separation of the explosive bolts 16 can be realized, and failure of one of the pipelines 15 is prevented, which leads to inaccurate separation of rocket separating sections, thereby ensuring high reliability in separation. Of course, when a separate section is required, a plurality of explosive bolts 16 may be arranged, determined according to the size of the area of the separate section.
As shown in fig. 2, the explosive bolts 16 are weakened slotted explosive bolts. Weaken slot type explosion bolt include bolt body 2, locate the inside piston rod 8 of bolt body 2 with locate cell body 7 on the periphery wall of bolt body 2, piston rod 8 moves under high-pressure gas's effect extremely surpasss the position of cell body 7 is right explosion bolt 16 applys separating force. The air cavity 3 is formed at one end, far away from the groove body 7, of the bolt body 2 and extends to the stressed end of the piston rod 8.
The left end of bolt body 2 is equipped with pipeline joint 1, bolt body 2 is used for linking together two connecting pieces 6, the right-hand member of bolt body 2 is equipped with and is used for connecting two nuts 5 that 6 fasten, air cavity 3 sets up in bolt body 2, be equipped with piston rod 8 in bolt body 2, be equipped with on the interface of piston rod 8 and air cavity 3 and be used for sealed sealing washer 4, high-pressure gas in gas cylinder 12 enters into air cavity 3 in explosion bolt 16, high-pressure gas promotes piston rod 8 along axial motion, move to the rightmost side of air cavity 3 in bolt body 2, at this moment, the stress of cell body 7 department on the periphery wall of bolt body 2 exceeds the intensity limit of material, under high-pressure gas's continuous impact, bolt body 2 begins to fracture from cell body 7, realize explosion bolt 16's separation, thereby realize rocket separation section's separation.
The groove body 7 is an annular groove provided on the outer peripheral wall of the bolt body 2, but the groove body 7 may be provided in other forms, such as a V-shape.
The high-pressure gas entering the explosive bolts 16 needs to be preset, the number of the explosive bolts 16 is set according to the area to be separated of the separation section, the gas pressure F based on the movement of the pushing piston rod 8 is equal to the high-pressure gas pressure P multiplied by the action area S in the gas cavity 3, and the control of the high-pressure gas pressure F of the groove body 7 at the position of the groove type explosive bolt with different bearing capacities under different specifications is realized by adjusting the high-pressure gas pressure and the action area in the gas cavity 3.
As an alternative embodiment, the piston rod 8 is not arranged in the air cavity 3 of the bolt body 2, high-pressure gas is directly introduced into the air cavity 3, and the bolt body 2 can start to break at the groove body 7 through continuous impact of the high-pressure gas, so that the separation of the explosive bolt 16 is realized, and the separation of the rocket separation section is realized.
As shown in fig. 3, the explosive bolt 16 is a shear pin type explosive bolt. The shear pin type explosive bolt comprises a bolt body 2, a bolt rod 10 fixedly connected with the bolt body 2 and a pin body 9 used for connecting the bolt body 2 and the bolt rod 10, wherein the air cavity 3 is arranged in the bolt body 2 and extends to the stress end of the bolt rod 10. The axial direction of the pin body 9 is perpendicular to the axial direction of the bolt shank 10.
The left end of the bolt body 2 is provided with a pipeline joint 1, the right end of the bolt body 2 is provided with a bolt rod 10, the bolt body 2 and the bolt rod 10 are connected together through a pin body 9, when high-pressure gas in a high-pressure gas cylinder 12 enters an air cavity 3 in an explosive bolt 16, the pin body 9 is broken under the continuous impact of the high-pressure gas, the explosive bolt 16 is separated, and therefore the separation of a rocket separation section is achieved. The pin body 9 is vertically fixed in the bolt 10, but may be inserted obliquely into the bolt shank 10 and the bolt body 2 to connect them.
The high-pressure gas entering the explosive bolts 16 needs to be preset, and the number of the explosive bolts 16 is set according to the area to be separated of the separation section, and the high-pressure gas pressure F needed by the shear pin type explosive bolt shear pin body 9 with different bearing capacities under different specifications is controlled by adjusting the high-pressure gas pressure and the action area S in the air cavity 3 based on the gas pressure F for pushing the bolt rod 10 to move, namely the high-pressure gas pressure P multiplied by the action area S in the air cavity 3.
In a specific embodiment, a check valve for preventing the backflow of the high pressure gas is provided at the connection between the explosion bolt 16 and the pipeline 15. At the pipe joint 1 between the explosive bolt 16 and the pipe 15, a check valve is provided to prevent the high pressure gas from flowing back into the pipe 15, and a sensor is provided to detect the content of the high pressure gas filled in the explosive bolt 16.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A non-explosive separation device based on explosive bolts, comprising:
at least one explosive bolt (16) provided with an air chamber (3) therein for containing high-pressure gas;
and the at least one high-pressure gas bottle (12) is communicated with the gas cavity (3) of the explosive bolt (16) through at least one pipeline (15) and is used for conveying the high-pressure gas stored inside to the gas cavity (3) of the explosive bolt (16) through the pipeline (15) and applying a force for separating the explosive bolt (16).
2. Non-explosive bolt-based separation device according to claim 1, characterized in that the high pressure gas cylinder (12) is one, and the pipeline (15) is provided with a solenoid valve for adjusting the on-off state of the high pressure gas cylinder (12) and the explosive bolt (16).
3. Non-pyrotechnic separation device based on explosive bolts according to claim 2, characterized in that the number of explosive bolts (16) is at least two, the solenoid valves comprising a first solenoid valve (13) and a second solenoid valve (14) connected respectively to the high pressure gas cylinder (12), each explosive bolt (16) being connected respectively to the first solenoid valve (13) and to the second solenoid valve (14) by two lines (15).
4. A non-pyrotechnic separation device based on an explosive bolt according to any of claims 1-3 characterised in that the explosive bolt (16) is a weakened slotted explosive bolt.
5. Non-pyrotechnic separation device based on an explosive bolt according to claim 4, characterised in that the weakening groove type explosive bolt comprises a bolt body (2), a piston rod (8) arranged inside the bolt body (2) and a groove body (7) arranged on the peripheral wall of the bolt body (2), wherein the piston rod (8) moves to a position beyond the groove body (7) under the action of high pressure gas, and applies a separation force to the explosive bolt (16).
6. A non-pyrotechnic separation device based on an explosive bolt according to claim 5 characterised in that the air chamber (3) is formed inside the bolt body (2) at an end remote from the housing (7) and extending to the stressed end of the piston rod (8).
7. A non-pyrotechnic separation device based on an explosive bolt according to any of claims 1-3 characterised in that the explosive bolt (16) is a shear pin explosive bolt.
8. A non-pyrotechnic separation device based on an explosive bolt according to claim 7, characterised in that the shear pin explosive bolt comprises a bolt body (2), a bolt shank (10) fixedly connected to the bolt body (2) and a pin body (9) for connecting the bolt body (2) and the bolt shank (10), the air chamber (3) being provided inside the bolt body (2) and extending to the force-bearing end of the bolt shank (10).
9. A non-pyrotechnic separation device based on an explosive bolt in accordance with claim 8 characterized in that the axial direction of the pin body (9) is arranged perpendicular to the axial direction of the bolt shank (10).
10. An explosive bolt-based non-explosive separation device according to any of claims 1-3, characterized in that a non-return valve preventing the backflow of high pressure gas is provided at the junction of the explosive bolt (16) and the pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215083.4U CN209991873U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on explosive bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215083.4U CN209991873U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on explosive bolt |
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| CN209991873U true CN209991873U (en) | 2020-01-24 |
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| CN201920215083.4U Active CN209991873U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on explosive bolt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737831A (en) * | 2019-02-19 | 2019-05-10 | 北京星际荣耀空间科技有限公司 | A kind of non-firer's separator based on blasting bolt |
| CN113405410A (en) * | 2021-08-20 | 2021-09-17 | 中国科学院力学研究所 | Interstage separation device suitable for rocket cold separation |
| CN117404968A (en) * | 2023-10-19 | 2024-01-16 | 北京天兵科技有限公司 | Non-initiating explosive device connection unlocking and reusable fairing separation system and method |
-
2019
- 2019-02-19 CN CN201920215083.4U patent/CN209991873U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737831A (en) * | 2019-02-19 | 2019-05-10 | 北京星际荣耀空间科技有限公司 | A kind of non-firer's separator based on blasting bolt |
| CN113405410A (en) * | 2021-08-20 | 2021-09-17 | 中国科学院力学研究所 | Interstage separation device suitable for rocket cold separation |
| CN113405410B (en) * | 2021-08-20 | 2021-11-05 | 中国科学院力学研究所 | Interstage separation device suitable for rocket cold separation |
| CN117404968A (en) * | 2023-10-19 | 2024-01-16 | 北京天兵科技有限公司 | Non-initiating explosive device connection unlocking and reusable fairing separation system and method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100045 1-14-214, 2nd floor, 136 Xiwai street, Xicheng District, Beijing Patentee after: Beijing Star glory Space Technology Co.,Ltd. Address before: 329, floor 3, building 1, No. 9, Desheng South Street, Daxing Economic and Technological Development Zone, Beijing 100176 Patentee before: BEIJING XINGJIRONGYAO SPACE TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |