CN106428646B - A kind of ejection release device of SMA silks driving - Google Patents
A kind of ejection release device of SMA silks driving Download PDFInfo
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- CN106428646B CN106428646B CN201610971361.XA CN201610971361A CN106428646B CN 106428646 B CN106428646 B CN 106428646B CN 201610971361 A CN201610971361 A CN 201610971361A CN 106428646 B CN106428646 B CN 106428646B
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- compression spring
- release device
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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
A kind of ejection release device of SMA silks driving, it is related to a kind of space mechanism, impact is big during solving existing spacecraft unblock relieving mechanism work, equipment is impacted, and contaminative is strong, can not reuse, the problem of simultaneously complicated, it includes chorista, separation compression spring, threaded rod member, connector, lower limit steel ball, spacing compression spring, driving compression spring, reset compression spring, steel ball retainer, sliding bolt, adapter sleeve, pin, upper limit steel ball, shape-memory alloy wire, shell body and bottom end cover；The upper end of shell body is arranged on connector；Pin is arranged in shell body, the upper end of shell body slides through connector, steel ball retainer is installed in pin, shape-memory alloy wire is drawn through the lower end of sliding bolt and through shell body, reset compression spring to be arranged between sliding bolt and steel ball retainer, driving compression spring is arranged in shell body；Adapter sleeve is sleeved on the upper end of shell body.The present invention is used for Aero-Space.
Description
Technical field
The present invention relates to a kind of space mechanism, and in particular to a kind of aerospace launches release device, belongs to space technology
Field.
Background technology
The present invention is used to discharge the payload being deployed on spacecraft.At present, the tradition unblock release of spacecraft
Mechanism is mostly priming system bolt.Priming system bolt protects payload during transmitting, does not unlock；After sending programmed instruction, energy
Enough timely, synchronously in-orbit unblocks.However, priming system can produce larger impact when working, gesture stability to satellite and quick
Sense equipment causes very big influence.The chemical gas discharged after priming system blast has contaminative, can be to camera lens and electronics
The precision instruments such as device cause damage.In addition, saying that priming system is used only once from the angle of reliability, and easily anticipated
Outward ignition.The priming system bolt finally used on spacecraft is not the bolt tested on ground, and mechanism reliability is tested
Card method is not direct and cost is huge.Structure design of the weight of heat impact and emission system caused by these equipment to surrounding
Cause considerable restraint.
Shape-memory alloy wire (SMA silks) is a kind of intellectual material, and this material is presented a kind of thermo elastic martensite formula and become
Change, i.e., less than certain transition temperature when they are flexible, because it is in martensitic phase, so as to be easily deformed, when it
When temperature is risen to more than transition temperature, the material returns to its austenite phase and former shape, and thus produces larger
Stress, similarly, shape-memory alloy wire can be easily axially extending along its in martensitic phase and remained extended as, at it
When being heated to more than transition temperature, the state that returned to along its axial direction before stretching, extension is understood, that is, shrink and recover, and produce larger
Power.
The content of the invention
The present invention is big to solve to impact when existing spacecraft unlocks relieving mechanism work, and equipment is impacted, and
The problem of contaminative is strong, can not reuse, while complicated, and then propose a kind of ejection release device of SMA silks driving.
The present invention adopts the technical scheme that to solve the above problems：A kind of ejection release device of SMA silks driving includes
Chorista, separation compression spring, threaded rod member, connector, lower limit steel ball, spacing compression spring, driving compression spring,
Reset compression spring, steel ball retainer, sliding bolt, adapter sleeve, pin, upper limit steel ball, shape-memory alloy wire, shell body and
Bottom end cover；
Pin is hollow pin, and the top of pin has the bin that can store upper limit steel ball, and having on sliding bolt can
Store the bin of lower limit steel ball；The upper end of shell body is arranged on connector, and lower end is provided with bottom end cover；Pin is arranged in
In shell body, the upper end of shell body slides through connector, and steel ball retainer is provided with pin, and steel ball retainer is arranged on down
On end cap, steel ball retainer leans pin, and sliding bolt is arranged in steel ball retainer, and shape-memory alloy wire passes through sliding bolt
Lower end is simultaneously drawn through shell body, is resetted compression spring and is arranged between sliding bolt and steel ball retainer, pin lower end inside face is opened
There is the limited impression coordinated with lower limit steel ball, the lower through-hole for moving lower limit steel ball, driving are provided with steel ball retainer
Compression spring is arranged in shell body, drives the lower end of compression spring to act against on pin, upper end is acted against on shell body；
The upper end of threaded rod member is provided with pad, and lower end passes through the supporting table of chorista and is connected with adapter sleeve, padded
It is set with threaded rod member between piece and supporting table and separates compression spring, adapter sleeve is sleeved on the upper end of shell body, outside
The upper end of housing offers the upper through hole for moving upper limit steel ball, and side-lower is provided with what is coordinated with upper limit steel ball in adapter sleeve
Withdrawing pattern hole, spacing compression spring are arranged in the annular groove of shell body and the through hole on shell body can be covered after discharging.
Further, the upper end of adapter sleeve is provided with screwed hole, and the lower end of threaded rod member is screwed in the screw thread of adapter sleeve
In hole.
Further, coordinated after chorista is locked with connector with wedge-shaped anchor ring and contacted.
Further, pin and shell body are two-step cylindrical structural.
Further, the top of pin and the structure of sliding bolt are dumbbell-shaped structure.
Further, the V-shaped arrangement of shape-memory alloy wire.
Further, steel ball retainer is fixed by a pin on bottom end cover.
Further, chorista is tubular structure, and chorista inwall is provided with support platform.
Further, it also includes buffing pad, and buffing pad is arranged on the upper surface of bottom end cover.
Further, it also includes upper end cover, and upper end cover is detachably connected with connector, and shell body is detachable with upper end cover
Connection.
The beneficial effects of the invention are as follows：First, the present invention utilizes the memory effect of shape-memory alloy wire, as space mechanism
The power trigger switch of release is launched, main drive is not that SMA is provided, and SMA is only to provide trigger action.To shape memory
B alloy wire is powered, using the restoring force of shape-memory alloy wire come trigger mechanism, using steel ball, compression spring, sliding bolt,
Pin, shell body are mutually arranged relation execution.And the voltage x current required for making SMA deformation is fewer, energy consumption is low；
2nd, compared with traditional space unblock relieving mechanism, the present invention is easy to operate, and unblock release response is fast, can be tens to hundreds of
Triggering is completed between millisecond；3rd, the mechanism size of apparatus of the present invention is relatively small, and light weight is simple in construction, saves space, can
It is big to discharge payload；4th, apparatus of the present invention impact is small, pollution-free, reusable.
Brief description of the drawings
Fig. 1 is a kind of locking state profile of the ejection release device of SMA silks driving of the present invention；
The locking state orthogonal for the ejection release device that a kind of SMA silks that Fig. 2 is Fig. 1 drive；
Fig. 3 is a kind of release conditions profile of the ejection release device of SMA silks driving of the present invention；
The release conditions orthogonal for the ejection release device that a kind of SMA silks that Fig. 4 is Fig. 3 drive；
Fig. 5 is that shape-memory alloy wire triggering moves forward and backward change schematic diagram；
Fig. 6 is shape-memory alloy wire force analysis figure；
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Referring to shown in Fig. 1-Fig. 4, a kind of ejection release device of SMA silks driving include chorista 1, separation compression spring 4,
Threaded rod member 5, connector 7, lower limit steel ball 9, spacing compression spring 12, driving compression spring 13, reset compression spring
14th, steel ball retainer 15, sliding bolt 16, adapter sleeve 17, pin 18, upper limit steel ball 19, shape-memory alloy wire 21, shell body
22 and bottom end cover 24；
Pin 18 is hollow pin, and the top of pin 18 has the annular groove that can accommodate upper limit steel ball 19, sliding bolt 16
It is upper that there is the annular groove that can accommodate lower limit steel ball 9；The upper end of shell body 22 is arranged on connector 7, and lower end is provided with lower end
Lid 24；Pin 18 is arranged in shell body 22, and the upper end of shell body 22 slides through connector 7, and steel ball is provided with pin 18
Retainer 15, steel ball retainer 15 are arranged on bottom end cover 24, and steel ball retainer 15 leans pin 18, and sliding bolt 16 is arranged in steel
In pearl retainer 15, shape-memory alloy wire 21 is drawn through the lower end of sliding bolt 16 and through shell body 22, resets compression spring
14 are arranged between sliding bolt 16 and steel ball retainer 15, and the lower end inside face of pin 18 is provided with the limit coordinated with lower limit steel ball 9
Position groove, the lower through-hole for moving lower limit steel ball 9 is provided with steel ball retainer 15, and driving compression spring 13 is arranged in shell
In body 22, the lower end of driving compression spring 13 is acted against on pin 18, and upper end is acted against on shell body 22；
The upper end of threaded rod member 5 is provided with pad, and lower end passes through the supporting table of chorista 1 and connected with adapter sleeve 17
Connect, be set with the threaded rod member 5 between pad and supporting table and separate compression spring 4, adapter sleeve 17 is sleeved on shell body
22 upper end, the upper end of shell body 22 offer the upper through hole for moving upper limit steel ball 19, and side-lower is provided with adapter sleeve 17
The withdrawing pattern hole coordinated with upper limit steel ball 19, energy after spacing compression spring 12 is arranged in the annular groove of shell body 22 and discharged
Cover the through hole on shell body 22.
Reset compression spring 14 to be arranged between the upper end of sliding bolt 16 and the blind end of retainer 15, the lateral wall of pin 18 is set
Outer ring table top is put, shell body 22 sets annular table top, and the lower end of driving compression spring 13 acts against the outer ring platform of pin 18
On face, upper end is acted against on the annular table top of shell body 22；The limited impression of the lower end of pin 18 makes arc groove to ensure
The stable arrangement of lower limit steel ball 9.
Referring to shown in Fig. 1 and Fig. 2, bottom end cover 24 is fixed on shell body 22 also by the first screw 10, in shell body 22
On be provided with two symmetrical square holes, be easy to passing through for shape-memory alloy wire 21.Leading for annular is provided with the top of shell body 22
To groove, shape-memory alloy wire 21 will be fixed and pretension being oriented in groove, while also enter the arrangement of row conductor.Ginseng
As shown in Figure 3, it can be circular hole that the part that the upper end of shell body 22 protrudes, which is provided with four upper through hole 22-1, upper through hole 22-1, adapter sleeve
The 17 withdrawing pattern hole 17-1 being provided with, allow upper limit steel ball 19 to free in and out withdrawing pattern hole 17-1 and upper through hole 22-1, are locking
Under state, upper limit steel ball 19 is also set to be maintained at locked position shown in Fig. 1 and Fig. 2.
Reset compression spring 14 and be also at compressive state, be assemblied between steel ball retainer 15 and sliding bolt 16, reset pressure
Contracting spring 14 can withstand sliding bolt 16, sliding bolt 16 is maintained on the position shown in Fig. 1 and Fig. 2, so that lower limit steel
Pearl 9 is also at state shown in Fig. 1, and lower limit steel ball 9 enters the limited impression of pin 18 by the lower through-hole of steel ball retainer 15
It is interior, and then limit the axial movement of pin 18.Resetting compression spring 14 and being in compressive state can also make device will not be because of shaking
The extraneous factor such as dynamic and may caused by false triggering, but the compression stress for resetting compression spring 14 can not be too big, it should less than shape
The product of the axial force that shape memory alloys silk 21 can be provided and reliable nargin.
The upper surface and lower surface of separation compression spring 4 are respectively acting on the support platform 1-1 on pad 3 with chorista 1
On.The compression force of compression spring 4 is separated on pad 3, adapter sleeve 17 is had upward axial force, the active force also serves as
Device bears the index of load.It can meet that the various working conditions that do not have to require by changing separation compression spring 4.Maximum load
Lotus should be within the tolerance range of four spacing steel balls.
Spacing compression spring 12 is assemblied in the annular groove of shell body 22, and its lower surface is fixed on shell body, upper end
Face is fixed on sleeve 11.In the locked condition, spacing compression spring 12 is in compressive state.When chorista 1 drives adapter sleeve
After 17 separation, spacing compression spring 12 promotes and moves on to position as shown in Figure 3 and Figure 4 on sleeve 11, blocks the four of shell body 22
Individual upper through hole 22-1, prevents upper limit steel ball 19 from being fallen out from upper through hole outside shell body 22.
As shown in Fig. 2 steel ball retainer 15 is also provided with rectangular shaped slot, it is easy to passing through and up and down for shape-memory alloy wire 21
It is mobile.The bottom of sliding bolt 16 is also provided with groove, passes through shape-memory alloy wire 21.In every case shape-memory alloy wire 21 passes through
Corner region, in order to avoid stress concentration, have fillet design in structure.
As shown in Fig. 2 shape-memory alloy wire 21 should now be in tensioned state, ensure the retraction of silk to the full extent
Power is all acted on sliding bolt 16.
Because the arrangement of shape-memory alloy wire 21 has determined and non-rotatable, the pin 18 of shaft hole matching relation is formed
Between shell body 22, between steel ball retainer 15 and pin 18, have between sliding bolt 16 and steel ball retainer 15 corresponding
Navigation designing, all only do between making four and move along a straight line to axial, ensure that shape-memory alloy wire 21 is not affected.
Shown in Figure 1, for convenience of operating, convenient disassembly, the upper end of adapter sleeve 17 is provided with tapped through hole, threaded bar
The lower end of part 5 is screwed in the tapped through hole of adapter sleeve 17.
Shown in Figure 2, chorista 1 is coordinated with connector 7 with wedge-shaped anchor ring to be contacted.It is arranged such, after present apparatus locking,
Chorista 1 and connector 7 reliable and stable can connect as one, and ensure that the stability of the two docking.
Referring to shown in Fig. 1-Fig. 4, pin 18 and shell body 22 are two-step cylindrical structural.Pin 18 is from top to bottom
For the two-step cylindrical structural of flaring, shell body 22 is also the two-step cylindrical structural of flaring from top to bottom, so
The aperture at the middle part of connector 7 is smaller, reduces perforate cost, overall structure is easy to process, reliability service, moreover it is possible to ensures single unit system
Launch the stable operation of release.Driving compression spring 13 is in compressive state, thereon an end-acted ring in shell body 22
On shape table top, lower surface is acted on the base circle face of pin 18, the power that is provided of driving compression spring 13 mainly for gram
Take the frictional force between four upper limit steel balls 19 and pin 18.Can according to because separation load is different and caused by frictional force size
Difference come select drive compression spring 13.
Referring to shown in Fig. 1-Fig. 4, the top of pin 18 and the structure of sliding bolt 16 are dumbbell-shaped structure.It is arranged such,
It is easy to the spacing of steel ball and storage, is advantageous to release axial constraint of the lower limit steel ball 9 to pin 18, releases upper limit steel ball 19
To the axial constraint of adapter sleeve 7.As shown in Fig. 2 the lower end of pin 18 is provided with rectangular shaped slot, avoid when pin 18 moves down
Shape-memory alloy wire 21 is caused to interfere.
Referring to shown in Fig. 1-Fig. 4, the V-shaped arrangement of shape-memory alloy wire.So be advantageous to give full play to shape memory conjunction
The retraction force effect of spun gold (SMA silks).
Referring to shown in Fig. 1 and Fig. 3, steel ball retainer 15 is fixed on bottom end cover 24 by pin 25.Such convenient disassembly.
Referring to shown in Fig. 1-Fig. 4, chorista 1 is tubular structure, and the inwall of chorista 1 is provided with support platform 1-1.Separation pressure
The upper surface and lower surface of contracting spring 4 are respectively acting on pad 3 and on the support platform 1-1 of chorista 1.Separate compression spring
4 compression force makes adapter sleeve 17 have upward axial force on pad 3, and the active force also serves as device and bears load
Index.It can meet that the various working conditions that do not have to require by changing separation compression spring 4.Maximum load should be in four limits
Within the tolerance range of position steel ball.In order to ensure threaded rod member 5 upwards motion after rigid shock chorista 1 top surface,
The top surface of chorista 1 sets cushion pad 2, to buffer the release force of threaded rod member 5.
Shown in Figure 2, a kind of ejection release device of SMA silks driving also includes buffing pad 23, and buffing pad 23 is arranged on
On the upper surface of bottom end cover 24.Buffing pad 23 has been screwed above bottom end cover 24, has been moved down with to buffer pin 18 and is brought
Impact.
Referring to shown in Fig. 1 and Fig. 2, a kind of ejection release device of SMA silks driving also includes upper end cover 8, and upper end cover 8 is with connecting
Junctor 7 is detachably connected, and shell body 22 is detachably connected with upper end cover 8.Upper end cover 8 is connected to shell body by the second screw 20
On 22.
Operation principle：Electrified regulation, shape alloy memory wire are carried out to shape alloy memory wire 21 using dc source DC
Collapsed shape memorial alloy (SMA) silk is carried out when less than its phase transition temperature, usually 85 DEG C, SMA silks can become by pre-stretching
Long, maximum tension rate is according to the different and different of string diameter.After the temperature of SMA silks is higher than phase transition temperature, SMA silks can return
The length being reduced to before being pre-stretched to it, stress, referred to as retraction force can be also produced in retraction process.) due to shape note
Recall the retraction of B alloy wire 21, pull sliding bolt 16 to move axially upward, pin 18 is to the radial component of lower limit steel ball 9 by under
Spacing steel ball 9 is pressed into the bin of sliding bolt 16, so as to release axial constraint of the lower limit steel ball 9 to pin 18, by driving
Spring 13 of moving drives pin 18 to move axially downwards, and then releases radial constraint of the pin 18 to upper limit steel ball 19, by even
Upper limit steel ball 19 is pressed into the inside of shell body 22 into the storage of pin 18 by female connector 17 to the radial component of upper limit steel ball 19
In groove, axial constraint of the spacing steel ball 19 to adapter sleeve 17 is released, the separation compression spring 4 in compressive state drives shank of bolt
The adapter sleeve 17 of 5 connections moves upwards, realizes the separation of chorista 1 and connector 7.As shown in Figure 3 and Figure 4.
In separator, the V-shaped arrangement of shape-memory alloy wire 21 as shown in Figure 2 is also beneficial to fully send out
Wave retraction force effect.For the effective axial force for providing sliding bolt 16, shape alloy memory wire 21 is in sliding bolt 16 and outside
Part and axial distance, radial distance between housing 21 form an imaginary right angled triangle, as shown in figure 5, wherein SMA
Silk forms the hypotenuse.Under normal temperature state, i.e., before device triggering, hypotenuse a length of t, right-angle side the c expression of SMA silks
The axial distance of application point of application point of the SMA silks on sliding bolt 16 to SMA silks on shell body 22, another right-angle side b tables
Show the radial distance of application point of application point of the SMA silks on shell body 22 to SMA silks on sliding bolt 16, and b is constant.
After phase transition temperature is reached, SMA filament lengths by shorten to pre-stretching before length, now, the imaginary right angled triangle it is oblique
Edge lengths will shorten, and can obtain distance change Δ c in the axial direction according to Pythagorean theorem, the distance and SMA silks can carry
The triggering displacement of confession.To ensure smoothly triggering, Δ c, which should be more than, can release what sliding bolt 16 was constrained lower limit steel ball 9
Minimum axial direction displacement and the product of reliable nargin.Wherein angle of inclination is got over hour, and SMA silks are more similar to vertical direction, and SMA silks exist
Component on axial direction is also bigger, otherwise smaller.Through calculating, can cause triggering angular range should 15 ° -67 ° it
Between.
The length d in the hole of SMA silks is penetrated by the inclination angle beta or shell body that change SMA silks, SMA can be changed
Silk acts on the size of the power F on sliding bolt 16 in vertical direction.Because the contraction of whole SMA silks is all concentrated on t, so increasing
Length that is long or shortening d can increase and reduce accordingly Δ c multiplication constant.
As shown in fig. 6, being moved up when SMA silk ribbons move sliding bolt 16, its inclination angle beta is increasing, acts on sliding bolt 16
On power it is also less and less.But in contraction process, F will be consistently greater than the compression stress for resetting compression spring 5.
The device can complete separating action within the extremely short time (tens to hundreds of milliseconds), so as to complete releasing for load
Put.Simple reset mode causes the more convenient repetition test for using, being also beneficial to device of device.
The reset of device is also very simple, the screwed hole that the top of pin 18 is provided with, is easy for the installation and reset of pin, passes through
Specific frock simultaneously utilizes the screwed hole on the top of pin 18, pin 18 is overcome the compression stress of driving compression spring 13, rises to
Position as shown in Figures 1 and 2.After pin 18 returns to the position of device locking state, be no longer powered heated shape memory
The prestretching in the case where being stretched to room temperature (or less than its phase transition temperature) under resetting the compression force of compression spring 14 again of B alloy wire 21
Length after stretching, meanwhile, reset compression spring 14 and push sliding bolt 16, lower limit steel ball 9 is slipped to steel ball retainer 15
Lower through-hole (circular hole) in and pin 18 on limited impression 18-1 in.
The present invention is disclosed as above with preferable case study on implementation, but is not limited to the present invention, any to be familiar with this specialty
Technical staff, without departing from the scope of the present invention, when the structure and technology contents that can utilize the disclosure above are done
Go out a little change or be modified to the equivalence enforcement case of equivalent variations, but it is every without departing from technical solution of the present invention
Hold, any simple modification, equivalent change and modification that the technical spirit according to the present invention is done to above case study on implementation, still belong to
Technical solution of the present invention scope.
Claims (10)
1. a kind of ejection release device of SMA silks driving, it includes chorista (1), separation compression spring (4), threaded bar
Part (5), connector (7), lower limit steel ball (9), spacing compression spring (12), driving compression spring (13), reset compression spring
(14), steel ball retainer (15), sliding bolt (16), adapter sleeve (17), pin (18), upper limit steel ball (19), shape memory close
Spun gold (21), shell body (22) and bottom end cover (24)；
It is characterized in that：Pin (18) is hollow pin, and the top of pin (18) has the storage that can store upper limit steel ball (19)
Groove is hidden, there is the bin that can store lower limit steel ball (9) on sliding bolt (16)；The upper end of shell body (22) is arranged on connector
(7) on, lower end is provided with bottom end cover (24)；Pin (18) is arranged in shell body (22), and the upper end of shell body (22), which is slided, wears
Connector (7) to be crossed, steel ball retainer (15) is installed in pin (18), steel ball retainer (15) is arranged on bottom end cover (24),
Steel ball retainer (15) leans pin (18), and sliding bolt (16) is arranged in steel ball retainer (15), shape-memory alloy wire
(21) through sliding bolt (16) lower end and through shell body (22) draw, reset compression spring (14) be arranged in sliding bolt (16) and
Between steel ball retainer (15), pin (18) lower end inside face is provided with the limited impression coordinated with lower limit steel ball (9), and steel ball is protected
The lower through-hole for being provided with frame (15) and making lower limit steel ball (9) mobile is held, driving compression spring (13) is arranged in shell body (22)
Interior, the lower end of driving compression spring (13) is acted against on pin (18), and upper end is acted against on shell body (22)；
The upper end of threaded rod member (5) is provided with pad, and lower end passes through the supporting table of chorista (1) and connected with adapter sleeve (17)
Connect, be set with the threaded rod member (5) between pad and supporting table and separate compression spring (4), adapter sleeve (17) is sleeved on
The upper end of shell body (22), the upper end of shell body (22) offer the upper through hole for making upper limit steel ball (19) mobile, adapter sleeve
(17) interior side-lower is provided with the withdrawing pattern hole coordinated with upper limit steel ball (19), and spacing compression spring (12) is arranged in shell body (22)
Annular groove in and through hole on shell body (22) can be covered after discharging.
A kind of 2. ejection release device of SMA silks driving according to claim 1, it is characterised in that：Adapter sleeve (17)
Upper end is provided with tapped through hole, and the lower end of threaded rod member (5) is screwed in the tapped through hole of adapter sleeve (17).
A kind of 3. ejection release device of SMA silks driving according to claim 1 or 2, it is characterised in that：Chorista (1)
Coordinated after being locked with connector (7) with wedge-shaped anchor ring and contacted.
A kind of 4. ejection release device of SMA silks driving according to claim 3, it is characterised in that：Pin (18) and outer
Housing (22) is two-step cylindrical structural.
A kind of 5. ejection release device of SMA silks driving according to claim 4, it is characterised in that：Pin (18) it is upper
The structure of portion and sliding bolt (16) is dumbbell-shaped structure.
A kind of 6. ejection release device of SMA silks driving according to claim 1,2 or 5, it is characterised in that：Shape memory
The V-shaped arrangement of B alloy wire.
A kind of 7. ejection release device of SMA silks driving according to claim 6, it is characterised in that：Steel ball retainer
(15) it is fixed on by pin (25) on bottom end cover (24).
A kind of 8. ejection release device of SMA silks driving according to claim 7, it is characterised in that：Chorista (1) is cylinder
Shape structure, chorista (1) inwall are provided with support platform.
A kind of 9. ejection release device of SMA silks driving according to claim 8, it is characterised in that：A kind of SMA silks
The ejection release device of driving also includes buffing pad (23), and buffing pad (23) is arranged on the upper surface of bottom end cover (24).
10. a kind of ejection release device of SMA silks driving according to claim 7 to 9 any claim, its feature exist
In：A kind of ejection release device of SMA silks driving also includes upper end cover (8), and upper end cover (8) is detachable with connector (7)
Connection, shell body (22) are detachably connected with upper end cover (8).
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| CN201610971361.XA CN106428646B (en) | 2016-10-28 | 2016-10-28 | A kind of ejection release device of SMA silks driving |
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| CN201610971361.XA CN106428646B (en) | 2016-10-28 | 2016-10-28 | A kind of ejection release device of SMA silks driving |
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| CN111456986B (en) * | 2020-03-20 | 2021-11-16 | 北京控制工程研究所 | Memory alloy locking and releasing mechanism |
| CN111483620B (en) * | 2020-03-30 | 2021-07-16 | 哈尔滨工业大学 | Quick separation device based on memory alloy wire drive |
| CN111894954B (en) * | 2020-06-28 | 2022-03-04 | 航天东方红卫星有限公司 | Memory alloy spring pin |
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| CN113086254B (en) * | 2021-04-14 | 2022-09-02 | 电子科技大学 | Simple unlocking device for aviation environment |
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| CN115231003B (en) * | 2022-09-20 | 2023-03-10 | 北京宇航系统工程研究所 | Satellite-rocket connecting and separating mechanism |
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| US5771742A (en) * | 1995-09-11 | 1998-06-30 | Tini Alloy Company | Release device for retaining pin |
| KR101324661B1 (en) * | 2010-07-19 | 2013-11-08 | 한국항공우주연구원 | Low Shock, Non-Explosive Release Device Using Shape Memory Alloy and Release Method |
| CN103231813B (en) * | 2013-04-16 | 2016-02-24 | 北京航空航天大学 | A kind of SMA grouping roller Xing great discharge mechanism |
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