CN113415445A - Connection secondary locking device - Google Patents
Connection secondary locking device Download PDFInfo
- Publication number
- CN113415445A CN113415445A CN202110724378.6A CN202110724378A CN113415445A CN 113415445 A CN113415445 A CN 113415445A CN 202110724378 A CN202110724378 A CN 202110724378A CN 113415445 A CN113415445 A CN 113415445A
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- Prior art keywords
- locking
- lock
- shaft
- spring
- guide sleeve
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- 238000000926 separation method Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000002360 explosive Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention provides a connection secondary locking device, which belongs to the technical field of aerospace, and the device integrally comprises an external structure body and an internal structure arranged in a cavity of the external structure body, wherein the external structure of the device comprises a lower shell, a support ring and a mounting seat; the device inner structure is connecting screw one end with the firer separation nut passes through threaded connection, and the other end and compression bar sub-unit connection, compression bar and lock axle installation are spacing, and the locking piece seat is installed in supporting the intra-annular, and the big locking piece is installed in locking piece seat lockhole, and lock axle lower part cylinder section cover has the lock axle spring, and the lock core is spacing with the installation of locking axle, and the chucking ring is installed in the locking axle outside, and inside little locking piece and the locking piece spring of being equipped with of chucking ring. The device adopts the fire connection and separation technology, and has the advantages of low impact, large bearing, high unlocking synchronization, small volume, high reliability and the like.
Description
Technical Field
The invention belongs to the technical field of aerospace, and particularly relates to a secondary locking device for connection.
Background
Connection locking and separation releasing are always widely concerned as key technologies in the aerospace field, and most of the existing connection and separation devices still adopt an initiating explosive device which has the remarkable characteristics of high reliability, quick response, high synchronism and the like. The current application is mostly in a separated working state after connection, and the scheme of locking again after connection is less. With the vigorous development of aerospace industry in China, the continuous deep promotion of tasks such as Chang' e lunar exploration project, Mars exploration project, space station construction and the like, a large number of high-precision exploration devices, micro-weapon equipment and small observation satellites are applied, and the connection locking technology is facing a new opportunity of innovative development.
Disclosure of Invention
The invention solves the technical problem of providing a connection secondary locking device which integrates the characteristics of high reliability, large bearing, high unlocking synchronism, small volume and the like, and solves the problem of difficult secondary locking after connection.
The technical scheme adopted by the invention is as follows: a connection secondary locking device comprises an external structure body and an internal structure arranged in a cavity of the external structure body, wherein the external structure of the device is a lower shell positioned at the bottom of the whole device, the upper part of the lower shell is connected with a support ring through a screw, the upper part of the support ring is an installation seat, the installation seat is connected with a separation locking system after the device is assembled, and an adapter seat arranged on the lower shell is connected with a body of an observation mechanism after the device is assembled; the internal structure of the device is that an explosive separation nut is connected with a lower shell through a screw, one end of a connecting screw rod is connected with the explosive separation nut through a thread, the other end of the connecting screw rod is connected with one side with a thread at the lower part of a pressing rod, the pressing rod is installed and limited with a lock shaft through a first limiting component, a lock block seat is installed in a supporting ring through hole-shaft matching, a large lock block is installed in a lock hole of the lock block seat, one end of the large lock block is installed in contact with a spherical surface on the lock shaft, a cylinder section at the lower part of the lock shaft is sleeved with a lock shaft spring, one end of the lock shaft spring is propped against the end surface of the lock shaft, the other end of the lock shaft spring is propped against the internal end surface of the lower shell, a vertebral disc is connected with the supporting ring through a screw to limit the lock block seat and the lock spring, a mandril is fixedly connected with the lock shaft through a screw thread, the small end part of the mandril is in contact with the lock cylinder, the lock cylinder is installed in contact with the lock cylinder and the second limiting component, and the lock shaft is installed in a limiting position through the second limiting component, the clamp ring is installed in the locking shaft outside through the cooperation of hole axle, inside little locking piece and the locking piece spring of being equipped with of clamp ring, and snap ring one end is fixed with the spacing subassembly contact of second, and one end and ejector pin contact fix it in the cross recess of clamping lever spacing, and locking shaft spring housing is in the outside of the spacing subassembly of second, and the fender lid is fixed in the spacing subassembly tip of second and pushes up and is spacing to it at locking shaft spring tip.
Preferably, the threaded side of the compression rod penetrates through the through hole in the lock shaft from top to bottom to be connected with the connecting screw rod.
Preferably, the first limiting component is a steel ball B and a guide sleeve A, and the compression rod is mounted and limited with the V-shaped groove at the lower part of the lock shaft through the steel ball B and the guide sleeve A.
Preferably, the second limiting component is a steel ball A and a guide sleeve B, the lock cylinder is installed in contact with the guide sleeve B, the lock cylinder is installed in a limiting mode through the steel ball A and the guide sleeve B and a V-shaped groove in the lower portion of the locking shaft, the guide sleeve B is fixedly connected with the locking block seat through a screw, the locking shaft is sleeved on the outer side of the guide sleeve B in a spring mode, and the blocking cover is fixed to the top end of the guide sleeve B and presses the end portion of the locking shaft spring to limit the position of the guide sleeve B.
Preferably, the tail part of the large locking block is a spherical surface, the large locking block is connected with the locking shaft through the spherical surface, and the spherical surface at the end part of the large locking block is inserted into a spherical groove of the locking shaft to move and lock for limiting.
Preferably, the contact surface of the large locking block and the locking block seat is a conical surface, when the locking shaft moves upwards to the locking position under the pushing of the locking shaft spring, the large locking block enters the spherical groove and moves outwards under the pushing of the locking shaft for locking, and the locking state limiting of the device is completed.
Preferably, the inner side of the lock shaft is a V-shaped surface and is matched with the steel ball B in shape.
Preferably, the inner side of the locking shaft is a V-shaped surface and is matched with the steel ball A in shape.
Preferably, the number of the large locking blocks is 6, and the large locking blocks are uniformly distributed on the circumference of the locking block seat.
The invention has the beneficial effects that:
1. the invention adopts the action form of separating the nut by small-sized firer, greatly reduces the load impact when the device is unlocked, and effectively improves the working reliability and the bearing capacity of the device;
2. the invention adopts the spring group as a locking power source and has the characteristics of short stroke, large load, small release impact, high stability, compact structure and small occupied space;
4. the side surface of the lock block seat is a conical surface, so that the position degree of the lock block can be limited when the lock block seat is locked, the bearing condition of the lock block seat can be improved, and the motion characteristic of the lock shaft is guaranteed;
5. the spherical surface design adopted by the invention ensures that the locking shaft can accurately move along the cylindrical surface on the inner side of the clamping ring in the process of moving down to the locking position, thereby improving the locking reliability of the device;
6. the end face of the large locking block adopted by the invention is a conical surface, so that the large locking block can be effectively limited to move when being locked and contacted with the locking block seat, and the support ring and the locking block seat are ensured to be tightly locked.
7. The end face of the small locking block adopted by the invention is a spherical surface, so that the movement of the locking shaft can be effectively limited when the small locking block is in locking contact with the locking shaft, and the mounting seat and the vertebral disc are ensured to be tightly locked.
Drawings
FIG. 1 is a schematic view of a connecting secondary locking device;
FIG. 2 is a cross-sectional view of a connecting secondary locking device.
Reference numerals: 1. the hydraulic cylinder comprises an initiating explosive separation nut, 2 a connecting screw, 3 a compression rod, 4 a locking shaft spring, 5 a large locking block, 6 a support ring, 7 a locking spring, 8 a locking block spring, 9 a cone disc, 10 a locking shaft, 11 a mounting seat, 12 a baffle cover, 13 a lock cylinder spring, 14 a locking shaft spring, 15 a lock cylinder, 16 a steel ball A, 17 a small locking block, 18 a guide sleeve B, 19 a snap ring, 20 a clamping ring, 21 a push rod, 22 a locking shaft, 23 a locking block seat, 24 an adapter seat, 25 a steel ball B, 26 a guide sleeve A, 27 and a lower shell.
Detailed Description
The connection secondary locking device has the remarkable characteristics of high reliability, large bearing capacity, high unlocking synchronism, small size and the like, and the device has various interface forms and can be applied to various connection locking systems. In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to a connecting secondary locking device, which has the working principle that: the connecting screw rod 2 is unlocked, separated and released by the action of the firer separating nut 1, the compression rod 3 moves upwards under the action of the compressed state release of the lock shaft spring 4, the steel ball B25 completes unlocking, the lock shaft spring 4 pushes the lock shaft 22 to drive the large lock block 5 and the ejector rod 21 to move, the ejector rod 21 impacts the end part of the lock cylinder 15 to enable the lock cylinder to move upwards, the steel ball A16 unlocks, the lock shaft spring 14 pushes the lock shaft 10 to move downwards, the lock block spring 8 pushes the small lock block 17 to move to lock and limit the lock shaft 10, and the lock shaft 10 drives the mounting seat 11 to be tightly locked with the vertebral disc 9.
In a connection secondary locking device, as shown in fig. 1 and 2, a mounting base 11 of the device is connected with a separation locking system after the device is assembled, an adapter 24 is mounted on a lower shell 27, and the adapter 24 is connected with a body of an observation mechanism after the device is assembled. The fire separation nut 1 is connected with the lower shell 27 through a screw, one end of a connecting screw rod 2 is connected with the fire separation nut 1 through a screw thread, the other end of the connecting screw rod is connected with one side with a screw thread at the lower part of a pressing rod 3, the pressing rod 3 is installed and limited with a V-shaped groove at the lower part of a lock shaft 22 through a steel ball B25 and a guide sleeve A26, the upper part of the lower shell 27 is connected with a support ring 6 through a screw, a lock block seat 23 is installed in the support ring 6 through hole-shaft matching, a large lock block 5 is installed in a lock hole of the lock block seat 23, one end of the large lock block is installed in contact with a spherical surface on the lock shaft 22, a conical disc 9 is connected with the support ring 6 through a screw to limit the lock block seat 23 and a locking spring 7, the side with a screw thread of the pressing rod 3 is connected with the connecting screw rod 2 through a through hole on the lock shaft 22, a mandril 21 is fixedly connected with the lock shaft 22 through a screw thread, the upper part of the mandril 21 is a small end part in contact with a lock core 15, the guide sleeve 15 is installed in contact with the lock core spring 13 and a B18, the locking shaft is installed and limited through a steel ball A16 and a guide sleeve B18 and a V-shaped groove at the lower part of the locking shaft 10, the guide sleeve B18 is fixedly connected with a locking block seat 23 through screws, a small locking block 17 and a locking block spring 8 are installed inside a clamping ring 20, one end of a clamping ring 19 is fixed in contact with a guide sleeve B18, one end of the clamping ring is fixed in contact with an ejector rod 21 and fixed in a cross groove of a compression rod 3 for limitation, the locking shaft 10 is installed together with an installation seat 11 and the clamping ring 20 through hole-shaft matching, and a blocking cover 12 is connected with the guide sleeve B18 through screws to fix and limit a locking shaft spring 14.
When the device is used, after the firer separation nut 1 is electrified and unlocked, the compression rod 3 is driven to axially rotate under the action of the elasticity of the lock shaft spring 4, and the unlocking of the steel ball B25 between the compression rod 3 and the lock shaft 22 is completed; after the steel ball B25 is unlocked, the pressing rod 3 continues to move upwards under the action of the elasticity of the locking shaft spring 4 to drive the end part of the ejector rod 21 to impact the lock cylinder 15, the lock cylinder 15 is driven to compress the lock cylinder spring 13, the unlocking of the steel ball A16 between the locking shaft 10 and the guide sleeve B18 is completed, the locking shaft spring 14 pushes the locking shaft 10 to move downwards through the release of a compressed state, the locking block spring 8 pushes the small locking block 17 to move through the release of a compressed state to lock and limit the locking shaft 10, the locking shaft 10 drives the mounting seat 11 to be tightly locked with the vertebral disc 9, and the locking state limitation of the device is completed.
The above description is the specific embodiment of the present invention and the technical principle applied, and any modification and equivalent transformation based on the technical solution of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A connecting secondary locking device, characterized by: the device integrally comprises an external structure body and an internal structure arranged in a cavity of the external structure body, the external structure of the device is a lower shell positioned at the bottom of the device integrally, the upper part of the lower shell is connected with a support ring through a screw, the upper part of the support ring is an installation seat, the installation seat is connected with a separation locking system after the device is assembled, and an adapter seat arranged on the lower shell is connected with a body of the observation mechanism after the device is assembled; the internal structure of the device is that an explosive separation nut is connected with a lower shell through a screw, one end of a connecting screw rod is connected with the explosive separation nut through a thread, the other end of the connecting screw rod is connected with one side with a thread at the lower part of a pressing rod, the pressing rod is installed and limited with a lock shaft through a first limiting component, a lock block seat is installed in a supporting ring through hole-shaft matching, a large lock block is installed in a lock hole of the lock block seat, one end of the large lock block is installed in contact with a spherical surface on the lock shaft, a cylinder section at the lower part of the lock shaft is sleeved with a lock shaft spring, one end of the lock shaft spring is propped against the end surface of the lock shaft, the other end of the lock shaft spring is propped against the internal end surface of the lower shell, a vertebral disc is connected with the supporting ring through a screw to limit the lock block seat and the lock spring, a mandril is fixedly connected with the lock shaft through a screw thread, the small end part of the mandril is in contact with the lock cylinder, the lock cylinder is installed in contact with the lock cylinder and the second limiting component, and the lock shaft is installed in a limiting position through the second limiting component, the clamp ring is installed in the locking shaft outside through the cooperation of hole axle, inside little locking piece and the locking piece spring of being equipped with of clamp ring, and snap ring one end is fixed with the spacing subassembly contact of second, and one end and ejector pin contact fix it in the cross recess of clamping lever spacing, and locking shaft spring housing is in the outside of the spacing subassembly of second, and the fender lid is fixed in the spacing subassembly tip of second and pushes up and is spacing to it at locking shaft spring tip.
2. A connecting secondary locking device as claimed in claim 1, wherein: the threaded side of the compression bar penetrates through the through hole in the lock shaft from top to bottom and is connected with the connecting screw rod.
3. A connecting secondary locking device as claimed in claim 1, wherein: the first limiting assembly is a steel ball B and a guide sleeve A, and the compression rod is mounted and limited with the V-shaped groove at the lower part of the lock shaft through the steel ball B and the guide sleeve A.
4. A connecting secondary locking device as claimed in claim 1, wherein: the second limiting component is a steel ball A and a guide sleeve B, the lock cylinder is installed in contact with the guide sleeve B, the lock cylinder is installed in a limiting mode through the steel ball A and the guide sleeve B and a V-shaped groove in the lower portion of the locking shaft, the guide sleeve B is fixedly connected with the locking block seat through a screw, the locking shaft is sleeved on the outer side of the guide sleeve B in a spring mode, and the blocking cover is fixed to the top end of the guide sleeve B and presses the end portion of the locking shaft spring to limit the locking shaft spring.
5. A connecting secondary locking device as claimed in claim 1, wherein: the tail of the large lock block is a spherical surface, the large lock block is connected with the lock shaft through the spherical surface, and the spherical surface at the end part of the large lock block is inserted into the spherical groove of the lock shaft to move and lock for limiting.
6. A connecting secondary locking device as claimed in claim 1, wherein: the contact surface of the large locking block and the locking block seat is a conical surface, when the locking shaft moves upwards to the locking position under the pushing of the locking shaft spring, the large locking block enters the spherical groove and moves outwards under the pushing of the locking shaft to be locked, and the locking state limiting of the device is completed.
7. A connecting secondary locking device as claimed in claim 3, wherein: the inner side of the lock shaft is a V-shaped surface and matched with the steel ball B in shape.
8. A connecting secondary locking device as claimed in claim 4, wherein: the inner side of the locking shaft is a V-shaped surface and is matched with the steel ball A in shape.
9. A connecting secondary locking device according to any one of claims 1 to 8, characterised in that: the number of the large locking blocks is 6, and the large locking blocks are uniformly distributed on the circumference of the locking block seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724378.6A CN113415445A (en) | 2021-06-29 | 2021-06-29 | Connection secondary locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724378.6A CN113415445A (en) | 2021-06-29 | 2021-06-29 | Connection secondary locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113415445A true CN113415445A (en) | 2021-09-21 |
Family
ID=77717011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110724378.6A Pending CN113415445A (en) | 2021-06-29 | 2021-06-29 | Connection secondary locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113415445A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2876985A1 (en) * | 2004-10-21 | 2006-04-28 | Eads Space Transp Sa Sa | Object e.g. satellite, connection device for e.g. launch vehicle`s structure, has connection unit and locking unit that are moved to respectively lead to electrical disjunction and mechanical unlocking between object and structure |
| 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 |
| CN112357128A (en) * | 2020-11-13 | 2021-02-12 | 沈阳航天新光集团有限公司 | Non-firer low-impact electromagnetic locking and releasing device |
| CN112389684A (en) * | 2020-11-03 | 2021-02-23 | 四川航天川南火工技术有限公司 | Connecting and unlocking structure driven by shape memory alloy |
| CN112407343A (en) * | 2020-11-20 | 2021-02-26 | 哈尔滨工业大学 | Torsional spring driven wedge type low-impact repeatable locking and releasing mechanism and working method thereof |
| CN112572843A (en) * | 2020-12-15 | 2021-03-30 | 沈阳航天新光集团有限公司 | Connection locking device |
| CN112660421A (en) * | 2021-01-24 | 2021-04-16 | 北京灵翼航宇科技有限公司 | Horizontal non-firer unlocking device |
-
2021
- 2021-06-29 CN CN202110724378.6A patent/CN113415445A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2876985A1 (en) * | 2004-10-21 | 2006-04-28 | Eads Space Transp Sa Sa | Object e.g. satellite, connection device for e.g. launch vehicle`s structure, has connection unit and locking unit that are moved to respectively lead to electrical disjunction and mechanical unlocking between object and structure |
| 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 |
| CN112389684A (en) * | 2020-11-03 | 2021-02-23 | 四川航天川南火工技术有限公司 | Connecting and unlocking structure driven by shape memory alloy |
| CN112357128A (en) * | 2020-11-13 | 2021-02-12 | 沈阳航天新光集团有限公司 | Non-firer low-impact electromagnetic locking and releasing device |
| CN112407343A (en) * | 2020-11-20 | 2021-02-26 | 哈尔滨工业大学 | Torsional spring driven wedge type low-impact repeatable locking and releasing mechanism and working method thereof |
| CN112572843A (en) * | 2020-12-15 | 2021-03-30 | 沈阳航天新光集团有限公司 | Connection locking device |
| CN112660421A (en) * | 2021-01-24 | 2021-04-16 | 北京灵翼航宇科技有限公司 | Horizontal non-firer unlocking device |
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