CN114056606A - Non-explosive fuse type bidirectional connection and separation device - Google Patents
Non-explosive fuse type bidirectional connection and separation device Download PDFInfo
- Publication number
- CN114056606A CN114056606A CN202111452357.XA CN202111452357A CN114056606A CN 114056606 A CN114056606 A CN 114056606A CN 202111452357 A CN202111452357 A CN 202111452357A CN 114056606 A CN114056606 A CN 114056606A
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- sleeve
- release device
- shell
- fusing
- slide block
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- 238000000926 separation method Methods 0.000 title claims abstract description 45
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 14
- 239000002360 explosive Substances 0.000 title abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/645—Separators
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention discloses a non-explosive fuse type bidirectional connection and separation device, wherein the upper end of a fuse release device is the front end of a fuse release device base and a separation system, a connecting screw is connected to the upper end of the fuse release device, the lower end of the fuse release device is connected with the upper end of a push rod slide block, a sleeve is fixed with the fuse release device base, the lower end of the sleeve is fixed with a bottom cover, the sleeve is provided with a steel ball mounting hole along the radial direction, the push rod slide block is arranged in the sleeve, the middle cylindrical surface of the push rod slide block is in sliding fit with the inner wall of the sleeve, a steel ball locking groove is arranged on the outer wall of the middle cylinder along the circumferential direction, a small spring support rod is arranged at the lower part of the ejector rod slide block, a small spring is tightly pressed and installed between the bottom cover and the ejector rod slide block, the shell is fixed at the rear end of the separation system, a sleeve is installed inside the shell, and the inner cylindrical surface of the shell is provided with a steel ball locking groove in the circumferential direction, and a large spring is tightly pressed and installed between the inner end surface of the shell and the bottom cover. Has the advantages of low unlocking impact, high safety, small volume and repeated use.
Description
Technical Field
The invention relates to the technical field of aerospace separation systems, in particular to a non-explosive fuse type bidirectional connection and separation device.
Background
The connection and separation technology has been widely paid attention as a key technology in the technical field of aerospace separation systems, and the existing initiating explosive connection and separation device is widely applied, but when the initiating explosive device is unlocked and separated, due to the fact that gunpowder is ignited to generate large impact force, large impact can be generated on the structure around the device, and the reliability and safety of the system are affected, so that the low-impact non-initiating explosive connection and separation technology is used urgently. With the vigorous development of aerospace industry in China, great demands are made on low-impact connection and separation technology products. At present, the non-explosive fuse-type unlocking technology has the defects of large equipment volume, heavy mass, small bearing capacity, large unlocking load impact and low working reliability and safety of the device.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a non-explosive fusing type bidirectional connection and separation device, which adopts a non-explosive driving mode and has the characteristics of low unlocking impact, high safety, small volume, reusability and the like.
The technical scheme adopted by the invention is a non-explosive fuse type bidirectional connection and separation device, the upper end of a fuse release device is a fuse release device base and the front end of a separation system, a connecting screw rod is connected to the upper end of the fuse release device to tightly press the front end of the separation system and the fuse release device base, the lower end of the fuse release device is connected with the upper end of a push rod slide block, a sleeve is integrally installed with the fuse release device base, the lower end of the sleeve is fixed with a bottom cover, the sleeve is provided with a steel ball installation hole along the radial direction, the push rod slide block is installed in the sleeve, the middle part of the push rod slide block is in sliding fit with the inner wall of a cylindrical surface of the sleeve, the outer wall of a cylinder at the middle part is provided with a steel ball lock groove along the circumferential direction, the lower part of the push rod slide block is a small spring support rod, a small spring is tightly installed between the bottom cover and the push rod slide block, a shell is fixed at the rear end of the separation system, the shell is internally provided with the sleeve, and the inner cylindrical surface of the shell is provided with a steel ball locking groove in the circumferential direction, and a large spring is tightly pressed and installed between the inner end surface of the shell and the bottom cover.
Preferably, one end of the fusing release device is a threaded hole, the other end of the fusing release device is a split nut with a conical hole, the connecting screw rod is screwed into the threaded hole of the fusing release device, and the conical surface at the upper end of the ejector rod sliding block is in limit fit with the conical hole of the fusing release device.
Further preferably, the split nut is wound by a fusible rope.
Preferably, the small spring is sleeved on the support rod of the ejector rod slide block, one end of the small spring is in contact with the end face of the ejector rod slide block, and the other end of the small spring is in contact with the end face of the bottom cover.
Further preferably, the large spring is installed inside the housing, and one end of the large spring is in contact with the housing and the other end of the large spring is in contact with the bottom cover.
Further preferably, the sleeve and the shell are in limit connection with the ejector rod slide block through steel balls.
The invention has the beneficial effects that: 1. the invention adopts the non-explosive fuse type unlocking technology, greatly reduces the impact of unlocking load, and effectively improves the working reliability and safety of the device; 2. the large spring is used as a power source, so that the bidirectional movement in the unlocking process is realized, and the device has the characteristics of short stroke, small release impact, high stability, compact structure and small occupied space; 3. the steel ball locking technology adopted by the invention can ensure the limiting precision of the moving part during locking, improve the bearing condition of the locking part, reduce unlocking impact and ensure the moving characteristic of the moving part. 4. The device has the characteristics of small volume, light weight, high bearing capacity, energy conservation, environmental protection, and repeated test and use. 5. The adopted interfaces are simple and various, and serialization and generalization can be realized. 6. The product of the invention has the advantages of seriation of bearing capacity, simple structure, various specifications and realization of standardization and modularization.
Drawings
Fig. 1 is a schematic structural view of a non-pyrotechnic fusing type bidirectional connection and separation device of the present invention.
Fig. 2 is a cross-sectional view of the structure of fig. 1.
Fig. 3 is a partial enlarged view at a in fig. 2.
Fig. 4 is a cross-sectional view of the device of fig. 1 after unlocking and separation.
Fig. 5 is a partial enlarged view at B in fig. 4.
In the figure: 1. the device comprises a connecting screw rod, 2, a front end of a separation system, 3, a fusing release device base, 4, a fusing release device, 5, a sleeve, 6, a shell, 7, a large spring, 8, a rear end of the separation system, 9, a bottom cover, 10, a small spring, 11, a steel ball and 12, a push rod sliding block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Referring to fig. 1 and 2 in combination with fig. 3, a non-explosive fuse type bidirectional connection and separation device comprises a connecting screw rod 1, a separation system front end 2, a fuse release device base 3, a fuse release device 4, a sleeve 5, a shell 6, a large spring 7, a separation system rear end 8, a bottom cover 9, a small spring 10, a steel ball 11 and an ejector rod slide block 12; the fusing release device 4 is a split nut with one end being a threaded hole and the other end being a conical hole, the split nut is hooped by a fusing rope to form a complete nut, and each nut split is scattered along the radial direction to be unlocked by fusing the fusing rope. The connecting screw rod 1 is screwed into a threaded hole of the fusing release device 4 through threads, and the front end 2 of the separating system is tightly pressed with the fusing release device base 3. The sleeve 5 is integrally installed with the fusing release device base 3 through a screw, a steel ball installation hole is formed in the sleeve 5 in the radial direction, the steel ball installation hole of the sleeve 5 is a hole formed in the wall of the sleeve 5, a steel ball can move in the hole in the radial direction of the sleeve, the ejector rod sliding block 12 is installed inside the sleeve 5, the upper conical surface of the ejector rod sliding block is in limit fit with the conical surface of the fusing release device 4, the middle cylindrical surface of the ejector rod sliding block is in sliding fit with the inner wall of the sleeve 5, a steel ball locking groove is formed in the outer wall of the middle cylindrical surface of the ejector rod sliding block along the circumferential direction, a small spring 10 supporting rod is arranged at the lower portion of the ejector rod sliding block 12, the bottom cover 9 is installed at the lower end of the sleeve 5 through threads, and the small spring 10 is installed between the bottom cover 9 and the ejector rod sliding block 12 in a pressing mode. The shell 6 is installed at the rear end 8 of the separation system through screws, the sleeve 5 is installed inside the shell and is in sliding fit with the outer wall of the sleeve 5 in the axial direction, a steel ball locking groove is formed in the inner cylindrical surface of the shell 6 in the circumferential direction, a large spring 7 is installed between the inner end face of the shell 6 and the bottom cover 9 in a pressing mode, the steel ball is installed in a steel ball installing hole of the sleeve 5, when the steel ball is located in the steel ball locking groove of the shell 6, the outer wall of the middle cylinder of the ejector rod sliding block 12 is limited to the steel ball in the radial direction, the shell 6 and the sleeve 5 are locked, when the sleeve 5 moves upwards until the steel ball enters the steel ball locking groove of the ejector rod sliding block 12, the shell 6 and the sleeve 5 are unlocked, at the moment, the inner cylindrical surface of the shell 6 is limited to the steel ball in the radial direction, and the sleeve 5 and the ejector rod sliding block 12 are locked. And the rear end 8 of the separation system is in locking connection with the front end 2 of the separation system after the device is assembled.
After the device is assembled, the front end 2 of the separation system is pressed and connected through the connecting screw rod 1, and the shell 6 is connected with the rear end 8 of the separation system in an installing mode, so that the connection function of the front end and the rear end of the separation system is achieved. The small spring 10 is sleeved at the supporting rod end of the ejector rod sliding block 12, one end of the small spring is in contact with the end face of the ejector rod sliding block 12, and the other end of the small spring is in contact with the end face of the bottom cover 9 and is in a compressed state. The steel ball 11 is arranged in the steel ball mounting hole of the sleeve 5, and in the connection state, the steel ball 11 is positioned in the steel ball locking groove of the shell 6 and is in contact with the cylindrical outer wall of the ejector rod slide block 12 for radial limiting. The large spring 7 is installed inside the housing 6, and has one end contacting the housing 6 and one end contacting the bottom cover 9, and is in a compressed state.
Referring to fig. 4 and fig. 5, which are schematic structural diagrams after the non-explosive fuse type bidirectional connection and separation device is unlocked, after the fuse release device 4 is unlocked, each nut lobe is radially dispersed, the axial constraints of the connecting screw rod 1 and the ejector rod slide block 12 are removed, the front end 2 of the separation system is unlocked and separated, under the thrust action of the small spring 10, the ejector rod slide block 12 moves upwards until the steel ball 11 enters the steel ball lock groove of the ejector rod slide block 12, the axial constraint between the shell 6 and the sleeve 5 is released, under the thrust action of the large spring 7, the bottom cover 9 is pushed to drive the sleeve 5, the fusing release device 4, the fusing release device base 3, the ejector rod sliding block 12 and the small spring 10 to move downwards together until the lower end face of the bottom cover 9 is contacted with the rear end 8 of the separation system, and finally the bidirectional unlocking of the device is realized, at the moment, the inner cylindrical surface of the shell 6 is in contact with the steel ball 11 for limiting, and the sleeve 5 and the ejector rod sliding block 12 are locked.
The main working principle of the invention is as follows:
when the front end and the rear end of the separation system are connected, the connecting screw rod 1 is connected with the fusing release device 4, the front end 2 of the separation system is tightly pressed with the fusing release device base 3, the fusing release device base 3 is fixedly connected with the sleeve 5 through a screw, the sleeve 5 and the shell 6 are in limit connection with the ejector rod sliding block 12 through the steel ball 11, and the shell 6 is installed on the rear end 8 of the separation system through a screw, so that the front end and the rear end of the separation system are connected.
When the front end and the rear end of the separation system are separated, the fusing release device 4 is unlocked, the axial restraint of the connecting screw rod 1 and the ejector rod sliding block 12 is released, the front end 2 of the separation system is separated, the ejector rod sliding block 12 is pushed by the small spring 10 to move upwards until the steel ball 11 enters the steel ball locking groove of the ejector rod sliding block 12, the shell 6 and the sleeve 5 are unlocked, the whole device is retracted downwards to the bottom cover 9 to be contacted with the rear end 8 of the separation system under the thrust action of the large spring 7, the ejector rod sliding block 12 and the sleeve 5 are locked, and bidirectional unlocking separation is completed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Non-firer fuse-type bidirectional connection separation device, its characterized in that: the upper end of the fusing release device is provided with a fusing release device base and a separation system front end, a connecting screw rod is connected to the upper end of the fusing release device to press the front end of the separation system and the fusing release device base, the lower end of the fusing release device is connected with the upper end of a push rod slide block, a sleeve is integrally installed with the fusing release device base, the lower end of the sleeve is fixed with a bottom cover, the sleeve is provided with a steel ball installation hole along the radial direction, the push rod slide block is installed in the sleeve, the middle cylindrical surface of the push rod slide block is in sliding fit with the inner wall of the sleeve, the outer cylindrical wall of the middle part of the push rod slide block is provided with a steel ball locking groove along the circumferential direction, the lower part of the push rod slide block is provided with a small spring supporting rod, a small spring is tightly installed between the bottom cover and the push rod slide block, a shell is fixed at the rear end of the separation system, the sleeve is installed in the shell and is in sliding fit with the outer wall of the sleeve along the axial direction, and the inner cylindrical surface of the shell is provided with a steel ball locking groove along the circumferential direction, a large spring is tightly installed between the inner end surface of the shell and the bottom cover.
2. The non-pyrotechnic fusing type bi-directional connection and disconnection device of claim 1, wherein: one end of the fusing release device is a threaded hole, the other end of the fusing release device is a split nut with a conical hole, the connecting screw rod is screwed into the threaded hole of the fusing release device, and the upper end conical surface of the ejector rod sliding block is in limit fit with the conical hole of the fusing release device.
3. The non-pyrotechnic fusing type bidirectional connection and disconnection device of claim 2, wherein: the split nut is wound by a melting rope.
4. The non-pyrotechnic fusing type bi-directional connection and disconnection device of claim 1, wherein: the small spring is sleeved on the supporting rod of the ejector rod sliding block, one end of the small spring is in contact with the end face of the ejector rod sliding block, and the other end of the small spring is in contact with the end face of the bottom cover.
5. The non-pyrotechnic fusing type bi-directional connection and disconnection device of claim 1, wherein: the big spring is arranged in the shell, one end of the big spring is in contact with the shell, and the other end of the big spring is in contact with the bottom cover.
6. The non-pyrotechnic fusing type bi-directional connection and disconnection device of claim 1, wherein: the sleeve and the shell are in limit connection with the ejector rod sliding block through steel balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111452357.XA CN114056606A (en) | 2021-12-01 | 2021-12-01 | Non-explosive fuse type bidirectional connection and separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111452357.XA CN114056606A (en) | 2021-12-01 | 2021-12-01 | Non-explosive fuse type bidirectional connection and separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114056606A true CN114056606A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111452357.XA Pending CN114056606A (en) | 2021-12-01 | 2021-12-01 | Non-explosive fuse type bidirectional connection and separation device |
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| Country | Link |
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| CN (1) | CN114056606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447807A (en) * | 2022-08-29 | 2022-12-09 | 北京空间机电研究所 | Non-firer type high-shear-bearing low-impact connection and separation mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130101369A1 (en) * | 2010-05-07 | 2013-04-25 | Pyroalliance | Tripped unlocking device, connecting two detachable subassemblies |
| CN103253384A (en) * | 2013-04-17 | 2013-08-21 | 上海卫星工程研究所 | Low impact unlocking device based on shape memory alloy spring, and application method thereof |
| CN106494651A (en) * | 2016-11-21 | 2017-03-15 | 上海航天控制技术研究所 | A kind of non-firer's separator of low impact |
| CN109383850A (en) * | 2018-09-04 | 2019-02-26 | 北京灵翼航宇科技有限公司 | A kind of non-firer's driver divides valve nut type tripper |
| CN110697089A (en) * | 2019-11-20 | 2020-01-17 | 沈阳航天新光集团有限公司 | Combined type bears non-firer greatly and connects separator |
| CN110712771A (en) * | 2019-11-20 | 2020-01-21 | 沈阳航天新光集团有限公司 | Non-firer fusing connection and separation device |
| CN113120260A (en) * | 2021-05-14 | 2021-07-16 | 上海宇航系统工程研究所 | Thermally-induced fusing steel ball lock pressing and releasing mechanism |
| CN113120259A (en) * | 2021-05-14 | 2021-07-16 | 上海宇航系统工程研究所 | Thermally-induced fusing steel ball lock separating mechanism |
-
2021
- 2021-12-01 CN CN202111452357.XA patent/CN114056606A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130101369A1 (en) * | 2010-05-07 | 2013-04-25 | Pyroalliance | Tripped unlocking device, connecting two detachable subassemblies |
| CN103253384A (en) * | 2013-04-17 | 2013-08-21 | 上海卫星工程研究所 | Low impact unlocking device based on shape memory alloy spring, and application method thereof |
| CN106494651A (en) * | 2016-11-21 | 2017-03-15 | 上海航天控制技术研究所 | A kind of non-firer's separator of low impact |
| CN109383850A (en) * | 2018-09-04 | 2019-02-26 | 北京灵翼航宇科技有限公司 | A kind of non-firer's driver divides valve nut type tripper |
| CN110697089A (en) * | 2019-11-20 | 2020-01-17 | 沈阳航天新光集团有限公司 | Combined type bears non-firer greatly and connects separator |
| CN110712771A (en) * | 2019-11-20 | 2020-01-21 | 沈阳航天新光集团有限公司 | Non-firer fusing connection and separation device |
| CN113120260A (en) * | 2021-05-14 | 2021-07-16 | 上海宇航系统工程研究所 | Thermally-induced fusing steel ball lock pressing and releasing mechanism |
| CN113120259A (en) * | 2021-05-14 | 2021-07-16 | 上海宇航系统工程研究所 | Thermally-induced fusing steel ball lock separating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115447807A (en) * | 2022-08-29 | 2022-12-09 | 北京空间机电研究所 | Non-firer type high-shear-bearing low-impact connection and separation mechanism |
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