CN113428388B - Flywheel mechanism for belt connection unlocking device - Google Patents
Flywheel mechanism for belt connection unlocking device Download PDFInfo
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- CN113428388B CN113428388B CN202110635336.5A CN202110635336A CN113428388B CN 113428388 B CN113428388 B CN 113428388B CN 202110635336 A CN202110635336 A CN 202110635336A CN 113428388 B CN113428388 B CN 113428388B
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- flywheel
- handed screw
- screw
- unlocking
- strap
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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
Abstract
The invention provides a flywheel mechanism for a belting connecting and unlocking device, which is characterized by comprising the following components: the device comprises a left shell, a right shell, a bearing, a flywheel, a left-handed screw, a right-handed screw, a loading nut, a platform support, a separation nut, a double-headed screw, a plunger, a bayonet lock, a first rotating shaft and a mounting seat, wherein the flywheel, the left-handed screw, the right-handed screw and the loading nut are wrapping tape connecting pieces; the plunger and the bayonet lock are connected with the unlocking part by the wrapping belt; when the bayonet lock is inserted into the flywheel clamping groove, the connection of the wrapping tape is realized, when the bayonet lock is rotated to be separated from the clamping groove, the circumferential restraint of the flywheel is removed, the flywheel rotates relative to the left and right spiral screws, and the left and right spiral screws are respectively pulled out of the flywheel to realize the unlocking of the wrapping tape. According to the invention, the flywheel is adopted to rotate and unlock instead of explosion bolt explosion unlocking, so that the unlocking time of the wrapping tape can be prolonged, the slow release of the pre-tightening force of the wrapping tape is realized, the locking force can be reduced by forming a two-stage mechanism by the flywheel and the clamping pin lever mechanism, the unlocking technology without fire is convenient to apply, and the impact generated by the wrapping tape unlocking can be greatly reduced.
Description
Technical Field
The invention relates to the field of connection and separation of star arrows, arrow bodies and the like, in particular to a flywheel mechanism for a belt connecting and unlocking device.
Background
At present, the belt connecting and unlocking device is widely applied to connection and unlocking of a satellite/aircraft and carrying due to high connecting rigidity and high reliability. However, the traditional belt connecting and unlocking device mainly applies pretightening force through the explosive bolts to realize radial tightening of the belt, the explosive bolts are detonated during unlocking, and the belt is released in the circumferential direction to realize an unlocking function. Because the explosive bolt is driven by the explosion or combustion of gunpowder to complete the task, the initiating explosive device has the defects that the device cannot overcome the defects that: once used, the impact force load to the structure is large when the initiating explosive device works, and the like. Before the star and the arrow are separated, the wrapping belt and the butt joint frame are deformed to store strain energy under the action of the pre-tightening force of the wrapping belt.
When the star and the arrow are separated, the initiating explosive element is detonated and broken, tangential instantaneous impulse is applied to the wrapping tape through the end part, and the energy released by burning of the gunpowder is converted into kinetic energy of outward expansion movement of the wrapping tape; meanwhile, the strain energy of the bag belt is rapidly dissipated under the influence of self damping; and the release of the strain energy of the docking frame causes damped vibration of the docking frame. Therefore, large impact is generated on the butt joint surfaces of the satellite and the arrow, and the single-machine load on the satellite or the aircraft is adversely affected.
Disclosure of Invention
The flywheel mechanism provided by the invention replaces the traditional explosive mode such as an explosive bolt, the foundation is provided for realizing the non-explosive mode by reducing the larger pretightening force of the strap to the smaller locking force, and meanwhile, the flywheel rotates to unlock so as to realize the slow release of the pretightening force of the strap, so that the impact response caused by the unlocking of the strap can be further reduced.
The technical scheme of the invention is as follows:
a flywheel mechanism for a belting connection unlocking device, comprising: a left shell, a right shell, a bearing, a flywheel, a left-handed screw, a right-handed screw, a loading nut, a platform support, a separation nut, a double-headed screw, a plunger, a bayonet lock, a first rotating shaft and a mounting seat,
the flywheel, the left-handed screw, the right-handed screw and the loading nut are strap connecting pieces, the flywheel is supported in the left shell and the right shell through bearings, one end of the left-handed screw and one end of the right-handed screw are in threaded fit with the flywheel, and the other end of the left-handed screw and the other end of the right-handed screw are in threaded connection with the loading nut, so that the strap is connected;
the plunger and the bayonet lock are connected with an unlocking part through a wrapping tape, the plunger and the double-end screw are fixed in a cylindrical hole of the platform support through the separation nut, the bayonet lock is connected with the platform support through a first rotating shaft, one end of the bayonet lock is limited by the plunger, and the other end of the bayonet lock restrains the flywheel;
flywheel circumference position design draw-in groove, work as the bayonet lock inserts when the flywheel draw-in groove, realize taking the connection, work as when the bayonet lock rotates and breaks away from the draw-in groove, release flywheel circumference restraint, the flywheel with control the screw rod and rotate relatively, left and right handed screw rod is followed respectively extract in the flywheel, realize taking the unblock.
Furthermore, one end of the left-handed screw and one end of the right-handed screw are in non-self-locking trapezoidal thread fit with the flywheel, and the other end of the left-handed screw and one end of the right-handed screw are in common thread connection with the loading nut.
Furthermore, the flywheel is respectively matched with the left-handed screw rod by adopting a non-self-locking multi-thread left-handed trapezoidal thread and is matched with the right-handed screw rod by adopting a non-self-locking multi-thread right-handed trapezoidal thread.
Furthermore, the left-handed screw and the right-handed screw are connected with the wrapping belt through the common threads of the loading nut, and torque is applied through the loading nut.
Furthermore, the left-handed screw and the right-handed screw are matched with end covers arranged on the left shell and the right shell through key grooves, so that the counter torque requirement on the loading nut is provided, the pre-tightening force of the wrapping belt is realized by loading the torque on the loading nut, and the requirement on load balancing is met.
Furthermore, compression springs and spring end covers are installed at the tails of the left-handed screw and the right-handed screw, and after unlocking, the compression springs generate pulling force on the left-handed screw and the right-handed screw, and the left-handed screw and the right-handed screw can be locked by residual force of the compression springs.
Further, the platform support passes through the second pivot and connects on the mount pad, the mount pad is fixed on the delivery adapter, sets up the torsional spring and makes after the unblock action flywheel mechanism wind the rotatory position of arriving of second pivot avoids producing the satellite separation process and interferes.
Further, the separation nut is a memory alloy separation nut.
Further, a collection box is arranged on the lower side of the platform support, and the collection box collects the plunger and the double-threaded screw after unlocking.
Further, the plunger with be provided with unblock spring and lock nut between the double-end screw, the plunger motion provides partly power when unblock spring is for the unblock, lock nut applies moment and guarantees not hard up under the external load condition.
Compared with the prior art, the invention has the following beneficial effects:
the flywheel is adopted to rotate and unlock instead of explosion bolt explosion unlocking, so that the unlocking time of the wrapping tape can be prolonged, the slow release of the pre-tightening force of the wrapping tape is realized, meanwhile, a two-stage mechanism consisting of the flywheel and a clamping pin lever mechanism can reduce the locking force, the non-explosive unlocking technology is convenient to apply, and the memory alloy separation nut disclosed by the invention can greatly reduce the impact generated by the unlocking of the wrapping tape.
Drawings
FIG. 1 is a schematic structural diagram of a flywheel mechanism for a belting connection unlocking device according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a front view section of a flywheel mechanism for a belting connection unlocking device according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a side view section of a flywheel mechanism for a belting-connection unlocking device according to an embodiment of the invention.
FIG. 4 is a schematic view of the installation of the freewheel mechanism for the strap attaching unlocking device according to the embodiment of the present invention.
The notation in the figure is: 1-a right housing; 2-left shell; 3-separating the nut; 4-a platform support; 5-a collection box; 6-a left-handed screw; 7-right-handed screw; 8-a flywheel; 9-a bearing; 10-end cap; 11-a loading nut; 12-a compression spring; 13-spring end caps; 14-double-ended screw; 15-unlocking the spring; 16-a plunger; 17-a lock nut; 18-bayonet lock; 19-a first shaft; 20-torsion spring; 21-a mounting seat; 22-second axis of rotation.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In practice, the invention will be understood to cover all modifications and variations of this invention provided they come within the scope of the appended claims.
For a better illustration of the invention, the following detailed description of the invention is given in conjunction with the accompanying drawings.
Implementation mode one
Fig. 1 is a schematic structural diagram of a flywheel mechanism for a strap connecting and unlocking device according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a front view section of the flywheel mechanism for the strap connecting and unlocking device according to the embodiment of the present invention, and fig. 3 is a schematic structural diagram of a side view section of the flywheel mechanism for the strap connecting and unlocking device according to the embodiment of the present invention. Referring to fig. 1 to 3, the flywheel mechanism for the belting connection unlocking device of the invention comprises a left shell 1, a right shell 2, a separation nut 3, a platform support 4, a collection box 5, a left-handed screw 6, a right-handed screw 7, a flywheel 8, a bearing 9, an end cover 10, a loading nut 11, a compression spring 12, a spring end cover 13, a double-headed screw 14, an unlocking spring 15, a plunger 16, a locking nut 17, a bayonet 18, a first rotating shaft 19, a torsion spring 20, an installation seat 21 and a second rotating shaft 22.
The flywheel 8, the left-handed screw 6, the right-handed screw 7 and the loading nut 11 are main connecting pieces of the wrapping tape.
The flywheel 8 is supported by bearings 9 in the left and right housings 1 and 2. The flywheel 8 is supported by a bearing 9, and the flywheel 8 rotates in a low friction mode in an unlocking state. One ends of the left-handed screw 6 and the right-handed screw 7 are in non-self-locking trapezoidal thread fit with the flywheel 8. The flywheel 8 can be matched with the left-handed screw 6 by adopting a non-self-locking multi-thread left-handed trapezoidal thread and can be matched with the right-handed screw 7 by adopting a non-self-locking multi-thread right-handed trapezoidal thread. By adopting the multi-thread, a larger thread lead angle can be obtained, and the non-self-locking performance and the bearing capacity are improved.
The other ends of the left-handed screw 6 and the right-handed screw 7 are in common threaded connection with a loading nut 11, so that the connection of the wrapping tape is realized. The left-handed screw 6 and the right-handed screw 7 are matched with the end covers 10 arranged on the left shell 1 and the right shell 2 through key slots, and the requirement for counter torque of the loading nut 11 is met. Through loading the loading nut 11 with torque, the pre-tightening force of the wrapping belt is realized, and the requirement of load balancing is met. And after the left-handed screw 6 and the right-handed screw 7 are unlocked, the compression spring 12 generates pulling force on the left-handed screw 6 and the right-handed screw 7, and the left-handed screw 6 and the right-handed screw 7 can be locked by the residual force of the compression spring 12.
The plunger 16 and the latch 18 are strap locks. The plunger 16 is fixed in the cylindrical hole of the platform support 4 through the separation nut 3 and the double-thread screw 14. The release nut 3 is preferably a memory alloy release nut. An unlocking spring 15 and a lock nut 17 are provided between the plunger 16 and the double-headed screw 14. The unlocking spring 15 provides a part of the power for the plunger 16 to move when unlocking. The lock nut 17 applies a torque to ensure that it does not loosen under external load. The lower side of the platform support 4 is provided with a collecting box 5. The collection box 5 collects the unlocked plunger 16, the double-headed screw 14 and the like, and the collection box 5 can prevent the unlocked double-headed screw 14, the plunger 16 and the like from generating space redundancy.
The bayonet 18 is connected to the platform support 4 via a first pivot 19, one end of which is retained by the plunger 16 and the other end of which retains the flywheel 8. The circumferential position of the flywheel 8 is provided with a clamping groove, and when the clamping pin 18 is inserted into the clamping groove of the flywheel 8, the rotation of the non-self-locking flywheel 8 is restrained under the condition of bearing the axial tension load, so that the connection of the wrapping belt is realized. When the clamping pin 18 rotates to be separated from the clamping groove, the circumferential constraint of the flywheel 8 is removed, the flywheel 8 rotates relative to the left-handed screw 6 and the right-handed screw 7, the left-handed screw 6 and the right-handed screw 7 are respectively pulled out of the flywheel 8, and the wrapping belt is unlocked. When the bayonet lock 18 is inserted into the clamping groove of the flywheel 8, the circumferential rotation constraint is realized, and when the bayonet lock is separated from the clamping groove, the constraint release of the flywheel is realized.
The mount 21 is fixed on the carrying adapter. The platform support 4 is connected to the mounting base 21 through the second rotating shaft 22, and the torsion spring 20 is arranged so that the flywheel mechanism can rotate to the right position around the second rotating shaft 22 after the unlocking action, thereby avoiding interference to the satellite separation process.
Second embodiment
The present embodiment differs from the first embodiment in that:
the pin is adopted to directly realize the constraint of the flywheel 8, and when the flywheel 8 is unlocked, the rotation unlocking of the flywheel 8 under the unconstrained condition can be realized by realizing the pin pulling action.
FIG. 4 is a schematic view of the installation of the freewheel mechanism for the strap attaching unlocking device according to the embodiment of the present invention. As shown in FIG. 4, the flywheel mechanism for the belting connection unlocking device reduces the larger pretightening force of the belting to the smaller locking force, and the flywheel rotates to unlock so as to realize the slow release of the pretightening force of the belting.
The patent takes a memory alloy separation nut as an example for introduction, but the memory alloy separation nut does not belong to the improvement point of the patent.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A flywheel mechanism for a belting connection unlocking device, comprising: a left shell, a right shell, a bearing, a flywheel, a left-handed screw, a right-handed screw, a loading nut, a platform support, a separation nut, a double-headed screw, a plunger, a bayonet lock, a first rotating shaft and a mounting seat,
the flywheel, the left-handed screw, the right-handed screw and the loading nut are strap connecting pieces, the flywheel is supported in the left shell and the right shell through bearings, one end of the left-handed screw and one end of the right-handed screw are in threaded fit with the flywheel, and the other end of the left-handed screw and the other end of the right-handed screw are in threaded connection with the loading nut, so that the strap is connected;
the plunger and the bayonet lock are connected with an unlocking part through a wrapping tape, the plunger and the double-end screw are fixed in a cylindrical hole of the platform support through the separation nut, the bayonet lock is connected with the platform support through a first rotating shaft, one end of the bayonet lock is limited by the plunger, and the other end of the bayonet lock restrains the flywheel;
flywheel circumference position design draw-in groove, work as the bayonet lock inserts when the flywheel draw-in groove, realize the band connection, work as when the bayonet lock rotates and breaks away from the draw-in groove, remove flywheel circumference restraint, the flywheel with the levogyration screw rod the dextrorotation screw rod rotates relatively, the levogyration screw rod the dextrorotation screw rod is followed respectively extract in the flywheel, realize the band unblock.
2. The flywheel mechanism for the strap-connecting unlocking device of claim 1, wherein one end of the left-handed screw and one end of the right-handed screw are in non-self-locking trapezoidal thread fit with the flywheel, and the other end of the left-handed screw and one end of the right-handed screw are in common thread connection with the loading nut.
3. The flywheel mechanism for the strap attaching unlocking device of claim 2, wherein the flywheel is respectively engaged with the left-handed screw by a non-self-locking multi-thread left-handed trapezoidal thread and the right-handed screw by a non-self-locking multi-thread right-handed trapezoidal thread.
4. The freewheel mechanism for strap joint unlock device according to claim 1 characterized in that said left-handed screw and said right-handed screw achieve the connection of the strap through the normal thread connection of said loading nut and apply torque through said loading nut.
5. The flywheel mechanism for the belting connection unlocking device of claim 4, wherein the left-handed screw and the right-handed screw are matched with the end covers installed on the left shell and the right shell through key slots, so as to provide the counter torque requirement for the loading nut, and the pre-tightening force of the belting is realized by loading the torque on the loading nut, so as to meet the requirement of load balancing.
6. The strap attaching unlocking device as defined in claim 1, wherein a compression spring and a spring end cap are installed at the tail of the left-handed screw and the right-handed screw, and when the strap attaching unlocking device is unlocked, the compression spring generates a pulling force on the left-handed screw and the right-handed screw, and the left-handed screw and the right-handed screw can be locked by the residual force of the compression spring.
7. The strap attachment release mechanism of claim 1, wherein the platform support is attached to a mounting base via a second pivot, the mounting base is secured to the carrier adapter, and a torsion spring is provided to allow the strap mechanism to rotate into position about the second pivot after the release to avoid interference with the satellite separation process.
8. The freewheel mechanism for strap-attaching unlocking device according to claim 1 characterized in that, the separation nut is a memory alloy separation nut.
9. The freewheel mechanism for strap-attached unlocking device according to claim 1 characterized in that, a collection box is placed under the platform support, which collects the unlocked plunger and double-headed screw.
10. The freewheel mechanism for a strap-attached unlocking device according to claim 1 characterized in that an unlocking spring and a lock nut are arranged between said plunger and said double-headed screw, said unlocking spring provides a part of the power for the plunger to move when unlocked, and said lock nut applies a moment to ensure that it does not loosen under external load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635336.5A CN113428388B (en) | 2021-06-08 | 2021-06-08 | Flywheel mechanism for belt connection unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635336.5A CN113428388B (en) | 2021-06-08 | 2021-06-08 | Flywheel mechanism for belt connection unlocking device |
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| Publication Number | Publication Date |
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| CN113428388A CN113428388A (en) | 2021-09-24 |
| CN113428388B true CN113428388B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110635336.5A Active CN113428388B (en) | 2021-06-08 | 2021-06-08 | Flywheel mechanism for belt connection unlocking device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875404A (en) * | 2009-12-17 | 2010-11-03 | 北京理工大学 | Sealed small low-impact release screw bolt |
| CN202054146U (en) * | 2011-04-18 | 2011-11-30 | 孟宪红 | Inside bayonet separating unlocking device |
| CN104176272A (en) * | 2014-08-06 | 2014-12-03 | 上海卫星工程研究所 | Eight rod connection type non-contact satellite platform configuration |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7893365B2 (en) * | 2008-11-10 | 2011-02-22 | Adc Telecommunications, Inc. | Weather resistant variable enclosure frame |
| KR101403026B1 (en) * | 2010-10-29 | 2014-06-03 | 한국전자통신연구원 | Shockless separation device for space application |
-
2021
- 2021-06-08 CN CN202110635336.5A patent/CN113428388B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875404A (en) * | 2009-12-17 | 2010-11-03 | 北京理工大学 | Sealed small low-impact release screw bolt |
| CN202054146U (en) * | 2011-04-18 | 2011-11-30 | 孟宪红 | Inside bayonet separating unlocking device |
| CN104176272A (en) * | 2014-08-06 | 2014-12-03 | 上海卫星工程研究所 | Eight rod connection type non-contact satellite platform configuration |
Non-Patent Citations (2)
| Title |
|---|
| LPSS a clamp band release system inducing very low shocks at payload interface;Miguel Lancho, Eugenio Grande, Javier Rivas, Christophe Bardet,;《57th International Astronautical Congress》;20121129 * |
| 温度变化对包带装置预紧力影响分析与验证;康士朋,唐杰,宋林郁,胡励,任海辽;《宇航学报》;20160930;1122-1128 * |
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| CN113428388A (en) | 2021-09-24 |
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