CN209991875U - Non-explosive separation device based on separation nut - Google Patents
Non-explosive separation device based on separation nut Download PDFInfo
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- CN209991875U CN209991875U CN201920231222.2U CN201920231222U CN209991875U CN 209991875 U CN209991875 U CN 209991875U CN 201920231222 U CN201920231222 U CN 201920231222U CN 209991875 U CN209991875 U CN 209991875U
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Abstract
The utility model relates to an aerospace equipment technical field, concretely relates to non-firer separator based on separation nut. The separating nut comprises a bolt rod connected with at least one piece to be separated, a split nut embracing the bolt rod to enable the piece to be separated to be in a connected state, and an air cavity arranged in the split nut and used for containing high-pressure air; the air cavity of the separation nut is communicated with a high-pressure air bottle with high-pressure air stored inside through at least one pipeline, when the high-pressure air bottle conveys the high-pressure air stored inside to the air cavity of the separation nut through any pipeline, the high-pressure air acts to enable the split nut to loosen the bolt rod, and the piece to be separated is in a free state. The utility model discloses a non-firer separator based on separation nut has repeatedly usable, and is with low costs to can not produce harmful gas's advantage.
Description
Technical Field
The utility model relates to an aerospace equipment technical field, concretely relates to non-firer separator based on separation nut.
Background
The traditional rocket section separation, whether the interstage separation or the fairing separation and the like are separated by using the explosion nuts, 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 separation nut of harmful gas.
In order to solve the problems, the utility model discloses a non-explosive separation device based on separation nut, including at least one separation nut, the separation nut includes the shank of bolt that connects at least one to-be-separated piece, the split nut that embraces the shank of bolt and makes the to-be-separated piece be in the connection state, and the air cavity that is used for holding high-pressure gas that sets up in its inside; the air cavity of the separation nut is communicated with a high-pressure air bottle with high-pressure air stored inside through at least one pipeline, when the high-pressure air bottle conveys the high-pressure air stored inside to the air cavity of the separation nut through any pipeline, the high-pressure air acts to enable the split nut to loosen the bolt rod, and the piece to be separated is in a free state.
And at least one electromagnetic valve is arranged on any pipeline and used for adjusting the on-off state of the high-pressure gas cylinder and the separation nut.
The two electromagnetic valves are respectively a first electromagnetic valve and a second electromagnetic valve, the high-pressure gas cylinder is provided with one, any separating nut is communicated with the high-pressure gas cylinder through the two pipelines, the first electromagnetic valve is installed on one of the two pipelines, and the second electromagnetic valve is installed on the other of the two pipelines.
When the electromagnetic valve is communicated with the high-pressure gas cylinder and the gas cavity, the high-pressure gas of the high-pressure gas cylinder enters the gas cavity along the pipeline at supersonic speed.
The bolt rod connects the two pieces to be separated.
The separating nut comprises a body, an air passage, a stop block and a split nut, a first movable cavity is arranged in the body, a first movable piece capable of moving in the first movable cavity is arranged in the first movable cavity, a second movable cavity is arranged in the first movable piece, a second movable piece capable of moving in the second movable cavity is installed in the second movable cavity, the air cavity is formed between the inner wall of the second movable cavity and the side wall of the end part of the second movable piece, extending into the second movable cavity, and a first inclined side wall inclining towards the outside is arranged at one end, far away from the air cavity, of the second movable piece; the gas path is arranged on the body and is communicated with the gas cavity and the pipeline; the stop block is arranged at one end of the body far away from the second movable piece, and one end of the stop block facing the second movable piece is provided with a second inclined side wall which inclines outwards and corresponds to the first inclined side wall; the opening and closing nut is arranged between the second movable piece and the stop block, two ends of the opening and closing nut are respectively contacted with the first inclined side wall and the second inclined side wall, and the peripheral side wall of the opening and closing nut is abutted against part of the inner wall of the first movable piece; when the high-pressure gas is filled into the air cavity, the first moving part and the second moving part move in opposite directions under the action of the high-pressure gas, the split nut is separated from the constraint of the first moving part, and the split nut is expanded outwards under the combined action of the first inclined side wall and the second inclined side wall, so that the split nut loosens the bolt rod.
The inner wall of the first movable cavity and the side wall of one end of the first movable part, extending into the first movable cavity, form a movable cavity, when the high-pressure gas is filled into the gas cavity, the first movable part moves into the movable cavity, and a cushion pad is arranged on the inner side of one end, far away from the first movable part, of the movable cavity.
And a damping hole communicated with the outside is arranged on the inner wall of the moving chamber close to the buffer pad.
The utility model discloses technical scheme has following advantage:
1. the utility model discloses a non-firer separating device based on separation nut, include, at least one separation nut, the separation nut includes the shank of bolt of connecting at least one piece of waiting to separate, embraces the shank of bolt makes the piece of waiting to separate be in the split nut of connected state, and set up the air cavity that is used for holding high-pressure gas in its inside; the air cavity of the separation nut is communicated with a high-pressure air bottle with high-pressure air stored inside through at least one pipeline, when the high-pressure air bottle conveys the high-pressure air stored inside to the air cavity of the separation nut through any pipeline, the high-pressure air acts to enable the split nut to loosen the bolt rod, and the piece to be separated is in a free state. The non-explosive separation device based on the separation nut uses high-pressure gas as a separation energy source of the separation nut, and compared with the use of gunpowder explosion or gunpowder combustion, the non-explosive separation device based on the separation nut does not generate harmful gas and is cleaner; and the structure except the separating nut is a structure capable of being recycled, so that the use cost of the non-fire separation device can be correspondingly saved, and the waste of materials is reduced. When the non-explosive separation device is used for rockets, the cost of aerospace is reduced.
2. The utility model discloses a non-firer separator based on separation nut opens when first battery valve and second battery valve receive control signal, the high-pressure gas cylinder with the air cavity passes through the pipeline intercommunication, and arbitrary opening or opening at first in first battery valve and the second battery valve promptly makes separation nut separation move in high-pressure gas enters into separation nut through the pipeline promptly. The electromagnetic valves and the pipelines are arranged in a redundant mode, in the actual operation process, when one electromagnetic valve or one pipeline fails, the other electromagnetic valve and the other pipeline can still be normally used, and the separation reliability of the non-explosive separation device is improved.
3. The utility model discloses a non-priming separation device based on separation nut, the setting up of blotter reduces the harm to the body when first moving part and body striking.
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 view of a cross-sectional view of a breakaway nut of the present invention through a center line;
FIG. 2 is a schematic structural view of the non-explosive separation device of the present invention;
description of reference numerals:
1-a split nut; 2-a piece to be separated; 3-bolt shank; 4-split nuts; 5-an air cavity; 7-body; 8-a buffer pad; 9-a damping hole; 10-high pressure gas cylinder; 11-a pipeline; 12-a first solenoid valve; 13-a second solenoid valve; 14-an inflation valve; 15-a first movable member; 17-a second active chamber; 18-a second movable member; 19-a first inclined side wall; 20-gas path; 21-a stopper; 22-a second sloping sidewall; 23-a moving chamber; 24-a line connection; 25-a limiting member.
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.
The non-explosive separation device based on the separation nut of the embodiment, as shown in fig. 1 and 2, comprises a separation nut 1, an air passage 20 and an electromagnetic valve.
Any separation nut 1 comprises a bolt rod 3 for connecting two pieces to be separated 2, a split nut 4 for holding the pieces to be separated 2 in a connecting state by embracing the bolt rod 3, an air cavity 5 arranged in the split nut for containing high-pressure air, a body 7, an air passage 20, a stop block 21, the split nut 4, a movable cavity 23 and a damping hole 9
The body 7 is provided with a first movable cavity, a first movable member 15 capable of moving in the first movable cavity is arranged in the first movable cavity, a second movable cavity 17 is arranged in the first movable member 15, a second movable member 18 capable of moving in the second movable cavity 17 is arranged in the second movable cavity 17, the air cavity 5 is formed between the inner wall of the second movable cavity 17 and the end side wall of the second movable member 18 extending into the second movable cavity 17, and a first inclined side wall 19 inclined towards the outside is arranged at one end of the second movable member 18 far away from the air cavity 5.
The air passage 20 is arranged on the body 7 and is communicated with the air cavity 5 and the pipeline 11.
A stopper 21 is disposed at an end of the body 7 away from the second movable member 18, and an end of the stopper 21 facing the second movable member 18 has a second inclined sidewall 22 inclined outward and corresponding to the first inclined sidewall 19.
The split nut 4 is arranged between the second movable member 18 and the stop block 21, two ends of the split nut 4 are respectively contacted with the first inclined side wall 19 and the second inclined side wall 22, and the peripheral side wall of the split nut 4 is abutted against part of the inner wall of the first movable member 15. In this embodiment, the first movable member 15 is connected to a limiting member 25, and an inner wall of the limiting member 25 abuts against an outer peripheral side wall of the split nut 4, so that the split nut 4 is in a state of embracing the bolt shank 3.
The inner wall of the first movable cavity and the side wall of one end of the first movable part 15 extending into the first movable cavity form a movable cavity 23, when the high-pressure gas is filled into the air cavity 5, the first movable part 15 moves into the movable cavity 23, and a buffer cushion 8 is arranged on the inner side of one end of the movable cavity 23 far away from the first movable part 15, so that damage to the body 7 when the first movable part 15 collides with the body 7 is reduced.
In order to enable the first movable member 15 to move into the moving chamber 23, a damping hole 9 communicated with the outside is formed on the inner wall of the moving chamber 23 close to the cushion pad 8, and the size of the damping hole 9 is controlled to limit the speed of the first movable member 15 moving into the moving chamber 23.
A pipe joint 24 is provided on the body 7, and the body is connected to the pipe 11 through the pipe joint 24.
In this embodiment, when the high-pressure gas is filled into the air cavity 5, the first movable member 15 and the second movable member 18 move in opposite directions under the action of the high-pressure gas, the split nut 4 is released from the constraint of the first movable member 15, and the split nut 4 expands outward under the combined action of the first inclined sidewall 19 and the second inclined sidewall 22, so that the split nut 4 releases the bolt rod 3.
As shown in fig. 2, there are 4 separation nuts 1, the air chamber 5 of any one of the separation nuts 1 is communicated with a high-pressure gas cylinder 10 in which high-pressure gas is stored through two pipelines 11, when the high-pressure gas cylinder 10 conveys the high-pressure gas stored in the high-pressure gas cylinder into the air chamber 5 of the separation nut 1 through any one of the pipelines 11, the high-pressure gas acts to loosen the bolt rod 3 from the split nut 4, and the member to be separated 2 is in a free state.
An electromagnetic valve is arranged on any pipeline 11 and used for adjusting the on-off state of the high-pressure gas cylinder 10 and the separation nut 1. In this embodiment, the separation nut 1 is connected to two pipelines 11, the two electromagnetic valves are also provided, which are a first electromagnetic valve 12 and a second electromagnetic valve 13, respectively, the high-pressure gas cylinder 10 is provided with one, any one of the separation nut 1 is communicated with the high-pressure gas cylinder 10 through the two pipelines 11, one of the two pipelines 11 is provided with the first electromagnetic valve 12, and the other is provided with the second electromagnetic valve 13. That is, the non-explosive separation device employs 2 × 4 redundancy based on two solenoid valves of the first solenoid valve 12 and the second solenoid valve 13. Of course, the pneumatic piston type cutting can be communicated with the high-pressure gas cylinder 10 through a plurality of pipelines 11, the number of the corresponding battery valves is correspondingly increased, and at least one battery valve is required to be arranged on any pipeline 11. In order to ensure the stability of the gas supply of the high-pressure gas cylinder 10, a plurality of high-pressure gas cylinders 10 may be provided.
The non-explosive separation device can be used for a carrier rocket, a spacecraft and the like, when the non-explosive separation device is used for the carrier rocket, the carrier rocket charges a high-pressure gas cylinder 10 through an inflation valve 14 in advance before launching, the first electromagnetic valve 12 and the second electromagnetic valve 13 are powered in advance in the first few minutes of section separation in the flying process, and the first electromagnetic valve 12 and the second electromagnetic valve 13 are opened after receiving control separation signals during separation, so that high-pressure gas in the high-pressure gas cylinder 10 respectively reaches the separation nut 1 along a pipeline 11 at supersonic speed, and separation and unlocking of the separation nut 1 are triggered by the acting force converted from the high-pressure gas, so that separation of components of the carrier rocket is realized. When the separating surface adjusting device is used, the setting quantity and the specification of the separating nuts 1 in the separating surface are adjusted according to different working conditions of the separating surface, so that the using requirements are met. When the rocket is recycled and reused, only the separation nut 1 needs to be replaced, and most of structures such as the high-pressure gas cylinder 10, the inflation valve 14, the battery valve and the pipeline 11 can be reused. Before the device is used repeatedly, the non-explosive separation device needs to be decomposed for air tightness inspection, X-ray inspection, pressure sensor function inspection and the like, the device is assembled and integrated again after being qualified, and high-pressure gas is charged into the high-pressure gas bottle 10 through the charging valve 14 before the device is used.
The non-explosive separation device based on the separation nut uses high-pressure gas as a separation energy source of the separation nut 1, and compared with the use of gunpowder explosion or gunpowder combustion, the non-explosive separation device based on the separation nut does not generate harmful gas and is cleaner; besides, the structure except the separation nut 1 is a structure capable of being recycled, so that the use cost of the non-fire separation device can be correspondingly saved, and the waste of materials is reduced. When the non-explosive separation device is used for a rocket, the condition of one-time use of the explosive separation device consisting of main explosive charges, secondary explosive charges and other explosive charges in the prior art is avoided, and accordingly the cost of aerospace is reduced.
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 (8)
1. A separation nut-based non-explosive separation device is characterized by comprising at least one separation nut (1), wherein the separation nut (1) comprises a bolt rod (3) connected with at least one piece to be separated (2), an opening and closing nut (4) embracing the bolt rod (3) to enable the piece to be separated (2) to be in a connected state, and an air cavity (5) arranged in the separation nut and used for containing high-pressure air;
the air cavity (5) of the separation nut (1) is communicated with a high-pressure gas cylinder (10) with high-pressure gas stored inside through at least one pipeline (11), when the high-pressure gas cylinder (10) conveys the high-pressure gas stored inside to the air cavity (5) of the separation nut (1) through any pipeline (11), the high-pressure gas acts to enable the split nut (4) to loosen the bolt rod (3), and the piece (2) to be separated is in a free state.
2. Non-pyrotechnic separation device based on a separation nut according to claim 1, characterized in that at least one solenoid valve is arranged on any of the pipelines (11) and is used for adjusting the on-off state of the high-pressure gas cylinder (10) and the separation nut (1).
3. A non-pyrotechnic separation device based on a separation nut according to claim 2, characterised in that the solenoid valves are two, respectively a first solenoid valve (12) and a second solenoid valve (13), the high-pressure gas cylinder (10) has one, either of the separation nuts (1) communicates with the high-pressure gas cylinder (10) through two of the conduits (11), one of the two conduits (11) is fitted with the first solenoid valve (12) and the other with the second solenoid valve (13).
4. A non-pyrotechnic separation device based on a separation nut according to claim 2, characterised in that the high-pressure gas of the high-pressure gas cylinder (10) enters the gas chamber (5) along the conduit (11) at supersonic velocity when the solenoid valve communicates the high-pressure gas cylinder (10) with the gas chamber (5).
5. A non-pyrotechnic separation device based on a separation nut as claimed in claim 1, characterised in that the bolt shank (3) connects the two pieces (2) to be separated.
6. A non-pyrotechnic separation device based on a separation nut according to any of claims 1-5, characterised in that the separation nut (1) comprises,
the air cavity (5) is formed between the inner wall of the second movable cavity (17) and the side wall of the end part of the second movable piece (18) extending into the second movable cavity (17), and a first inclined side wall (19) inclining towards the outer side is arranged at one end, far away from the air cavity (5), of the second movable piece (18);
the air passage (20) is arranged on the body (7) and is communicated with the air cavity (5) and the pipeline (11);
the stopper (21) is arranged at one end of the body (7) far away from the second movable piece (18), and one end of the stopper (21) facing the second movable piece (18) is provided with a second inclined side wall (22) which inclines outwards and corresponds to the first inclined side wall (19);
the opening and closing nut (4) is arranged between the second moving piece (18) and the stop block (21), two ends of the opening and closing nut (4) are respectively contacted with the first inclined side wall (19) and the second inclined side wall (22), and the peripheral side wall of the opening and closing nut (4) is abutted against part of the inner wall of the first moving piece (15);
when the high-pressure gas is filled into the air cavity (5), the first movable piece (15) and the second movable piece (18) move in opposite directions under the action of the high-pressure gas, the split nut (4) is separated from the constraint of the first movable piece (15), and the split nut (4) is expanded outwards under the combined action of the first inclined side wall (19) and the second inclined side wall (22), so that the split nut (4) loosens the bolt rod (3).
7. A non-explosive separation device based on a separation nut according to claim 6, characterized in that the inner wall of the first movable cavity and the side wall of the first movable member (15) at one end extending into the first movable cavity form a moving chamber (23), when the high-pressure gas is filled into the gas cavity (5), the first movable member (15) moves into the moving chamber (23), and a buffer cushion (8) is arranged on the inner side of one end of the moving chamber (23) far away from the first movable member (15).
8. A non-pyrotechnic separation device based on a separation nut as claimed in claim 7 characterised in that the inner wall of the moving chamber (23) close to the cushion (8) is provided with a damping hole (9) communicating with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920231222.2U CN209991875U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on separation nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920231222.2U CN209991875U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on separation nut |
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| Publication Number | Publication Date |
|---|---|
| CN209991875U true CN209991875U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920231222.2U Active CN209991875U (en) | 2019-02-19 | 2019-02-19 | Non-explosive separation device based on separation nut |
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| CN (1) | CN209991875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737833A (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 separation nut |
-
2019
- 2019-02-19 CN CN201920231222.2U patent/CN209991875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737833A (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 separation nut |
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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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