CN110439884A - A kind of repeatable locking axial locking structure using memorial alloy - Google Patents
A kind of repeatable locking axial locking structure using memorial alloy Download PDFInfo
- Publication number
- CN110439884A CN110439884A CN201810408306.9A CN201810408306A CN110439884A CN 110439884 A CN110439884 A CN 110439884A CN 201810408306 A CN201810408306 A CN 201810408306A CN 110439884 A CN110439884 A CN 110439884A
- Authority
- CN
- China
- Prior art keywords
- locking
- shafting
- memorial alloy
- repeatable
- elastic spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract description 29
- 230000000694 effects Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
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
- B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/77—Use of a shape-memory material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Springs (AREA)
Abstract
The present invention relates to a kind of repeatable locking axial locking mechanisms using memorial alloy, belong to space mechanism field.The present invention relates to a kind of repeatable locking axial locking mechanisms using memorial alloy to design flexible reed, can restore to reach initial position under elastic reaction after coupling mechanism force is removed its main feature is that retaining mechanism is driven using memorial alloy.After memory alloy wire drives wirerope to take up elastic spring, the ball-and-socket on the rigid bulb and shafting rotor on elastic spring cooperates, and realizes shafting locking.Mechanism locking point of force application distance axis holds distance closely, and active force is applied directly on shafting axis of rotation, can play better locking effect.Architecture quality is light, small in size, unlock impact is small, and the repetition locking and unlock of achievable shafting.
Description
Technical field
The present invention relates to a kind of repeatable locking axial locking mechanisms using memorial alloy for being applied to servo turntable, belong to
In space mechanism field.
Background technique
The mechanical frequency of servo turntable when in order to improve rocket launching prevents resonance and rocket or turntable is caused to damage.
The servo turntable of satellite borne equipment is generally used retaining mechanism and locks to turntable moving component, improves turntable intrinsic frequency and protects
Emission security is demonstrate,proved, retaining mechanism is unlocked after satellier injection, and turntable moving component affranchises rotation.Common locking side
Formula is to be attached using fire attacks product such as blasting bolts to moving component, but blasting bolt volume, weight are big, and unlock impact is big,
As the smaller and smaller small light requirement of turntable is higher and higher, priming system locking is more unable to satisfy system requirements.It generates therewith
Fire attack product are replaced to realize turntable locking using memorial alloy by the retaining mechanism of driving force, memorial alloy retaining mechanism has volume
The advantages such as small, light-weight, unlock impact is small, the achievable repetition locking of optimized design.Existing retaining mechanism is usually used
Excessive part outside shafting carries out the rotation of locking limitation axis to rotary axis, since locking point does not cause axis on axis of rotation
It is unbalance stress, to locking mechanism rigidity, more stringent requirements are proposed, is unfavorable for lightweight and easily causes overall stiffness insufficient.
The invention proposes a kind of repeatable locking axial locking structures using memorial alloy, its main feature is that locking masterpiece
Close apart from bearing distance with point, active force is applied directly on axis of rotation, and retaining mechanism shaft active force is uniform, Ke Yiqi
To better locking effect.Retaining mechanism is driven using memorial alloy, and can carry out repeating locking.
Summary of the invention
In order to meet the needs of small turntable is to small-sized retaining mechanism, a kind of use applied to servo turntable has been invented
The repeatable locking axial locking mechanism of memorial alloy, steps are as follows for required equipment and realization:
Required equipment is by shafting stator 1, elastic spring 2, bearing 3, shafting rotor 4, fastened housing 5, wirerope 6, connection
Part 7, heater 8 and memory alloy wire 9 form.Shafting stator 1, bearing 3 and shafting rotor 4 constitute rotation axis system, multiple elasticity
Reed 2 and shafting stator 1 are connected, and uniformly distributed by rotating shaft of shafting rotation axis, and fastened housing 5 and shafting stator 1 are connected.Shafting
Stator 1 and the design of elastic spring 2 have an annular groove, and when installation guarantees that shafting stator 1 is aligned to form positioning with the annular groove of elastic spring 2
Slot, wirerope 6 are wrapped in locating slot, and one end and shafting stator 1 are connected, and one end and connector 7 are connected, can be in memory alloy wire
It completes to take up and loosen under 9 drive.The design of shafting stator 1 has a threading hole, guarantee wirerope 6 can out of shafting stator 1 through
Outside is connect with connector 7.Design has rigid bulb on elastic spring 2, and rear axle mechanism is locked in the big guarantee of performance level analysis
Rigidity, vertical stiffness is small and has certain elasticity, and elastic spring 2 guarantees that shafting rotor 4 is not interfered to rotate in initial position.Axis
It is that design has ball-and-socket on 4 corresponding position of rotor.9 one end of memory alloy wire and fastened housing 5 are connected, and one end and connector 7 are connected.
When locking, heater 8 is powered and heats to memory alloy wire 9, and after 9 temperature of memory alloy wire is increased to threshold temperature, memory is closed
Spun gold 9 is shunk drives wirerope 6 to take up by connector 7, and wirerope 6 takes up the deformation of post-tensioning dynamic elasticity reed 2, band dynamic elasticity spring
Rigidity bulb on piece 2 is moved down to be cooperated with the ball-and-socket on shafting rotor 4, and limitation shafting rotor 4 rotates, and realizes the lock of shaft
Tightly.When unlock, heater 8 is powered off, and after 9 temperature of memory alloy wire is reduced to threshold temperature, memory alloy wire 9 extends, wirerope 6
After loosening, elastic spring 2 restores initial position under the action of elasticity, and shafting rotor 4 is free to rotate, realizes shafting unlock.
Shafting stator 1 and the annular groove of elastic spring 2 will not slip when guaranteeing that wirerope 6 takes up and loosens.
Realize step:
When step 1, shafting locking, shafting rotor 4 remains stationary after turning to locked position, and heater 8 is powered, to memory
Alloy wire 9 heats.
After step 2,9 temperature of memory alloy wire are increased to threshold temperature, memory alloy wire 9 is started to shrink, and memorial alloy 9 is logical
Crossing connector 7 drives wirerope 6 to take up.
The rigid bulb and shafting rotor of step 3, wirerope 6 in next, the deformation of elasticity of compression reed 2, elastic spring 2
4 ball-and-socket contact, limits the rotation of shafting rotor 4, realizes shaft locking.
Step 4, locking post-heater 8 remain powered on state, guarantee the temperature of memory alloy wire 9, keep shafting locking.
When step 5, unlock, heater 8 is powered off, and stops the heating to memory alloy wire 9, under 9 temperature of memorial alloy starts
Drop.
Step 6, when 9 temperature of memory alloy wire be lower than threshold temperature after, memory alloy wire 9 starts to extend, and wirerope 6 is put
Pine, 2 bullet of elastic spring restore initial position under property effect, and the rigid bulb of elastic spring 2 is separated with the ball-and-socket of shafting rotor 4
And initial position is returned to, shafting rotor 4 can be freely rotated at this time, realize the unlock of shafting.
Step 7, heater 8 remain powered off, and shafting is in the unlocked state.
The repetition locking of shafting can be realized by repeating step 1 to step 4, and the repetition of shafting can be realized to step 7 by repeating step 5
Unlock.
The invention proposes a kind of repeatable locking axial locking mechanisms using memorial alloy: being driven using memorial alloy
It is dynamic, realize the locking and unlock of shaft.Architecture quality is light, small in size, unlock impact is small, and locks point of force application distance axis
It holds that distance is close, and active force is applied directly on shafting axis of rotation, can play better locking effect, and achievable shafting
Repeat locking and unlock.
Detailed description of the invention
Fig. 1 is a kind of composition figure of equipment needed for repeatable locking axial locking mechanism using memorial alloy, in which: required
Equipment 1 is shafting stator, 2 is elastic spring, 3 is bearing, 4 is shafting rotor, 5 is fastened housing, 6 is wirerope, 7 is connection
Part, 8 be heater, 9 be memory alloy wire.
Fig. 2 is elastic spring structural schematic diagram.
Two figures are also abstract of description attached drawing.
Specific embodiment
By taking certain laser communication servo turntable pitching shafting retaining mechanism as an example, steps are as follows for system composition and realization:
Structure by shafting stator 1, elastic spring 2, bearing 3, shafting rotor 4, fastened housing 5, wirerope 6, connector 7,
Heater 8 and memory alloy wire 9 form.6 elastic springs 2 are evenly arranged on shafting stator 1, on 4 corresponding position of shafting rotor
Offer 6 ball-and-sockets that can cooperate with the rigid bulb on elastic spring 2.The threshold temperature of memory alloy wire 9 is designed as 80 DEG C,
Memorial alloy 9 starts to extend after memory alloy wire 9 is shunk less than 80 DEG C after the temperature of memory alloy wire 9 is greater than 80 DEG C.
When step 1, shafting locking, shafting rotor 4 remains stationary after turning to locked position, and heater 8 is powered, to memory
Alloy wire 9 heats.
After step 2,9 temperature of memory alloy wire are increased to threshold temperature (80 DEG C), memory alloy wire 9 is started to shrink, memory
Alloy wire 9 drives wirerope 6 to take up by connector 7.
After step 3, wirerope 6 are tightened, elasticity of compression reed 2, elastic spring 2 is deformed, the rigid bulb on elastic spring 2
It is contacted with the ball-and-socket of shafting rotor 4, limits the rotation of shafting rotor 4, realize shaft locking.
Step 4, locking post-heater 8 remain powered on state, guarantee the temperature of memory alloy wire 9, keep shafting locking.
When step 5, unlock, heater 8 is powered off, and stops the heating to memory alloy wire 9, and 9 temperature of memory alloy wire starts
Decline.
Step 6, when 9 temperature of memory alloy wire be lower than threshold temperature after, memory alloy wire 9 starts to extend, and wirerope 6 is put
Pine, 2 bullet of elastic spring restore initial position under property effect, and the rigid bulb of elastic spring 2 is separated with the ball-and-socket of shafting rotor 4
And initial position is returned to, shafting rotor 4 can be freely rotated at this time, realize the unlock of shafting.
Step 7, heater 8 remain powered off, and shafting is in the unlocked state.
The repetition locking of shafting can be realized by repeating step 1 to step 4, and the repetition of shafting can be realized to step 7 by repeating step 5
Unlock.By above step, the locking and unlock of pitching shafting are completed.
Claims (2)
1. a kind of repeatable locking axial locking mechanism using memorial alloy, it is characterised in that: locking active force directly acts on
Onto shafting axis of rotation, shafting uniform force.
2. a kind of repeatable locking axial locking mechanism using memorial alloy according to claim 1, it is characterised in that:
Design has an elastic spring with rigid bulb and the shafting rotor with ball-and-socket, the rigid bulb and axis of rigidity reed when locking
It is the cooperation limitation shafting rotation of rotor ball-and-socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810408306.9A CN110439884A (en) | 2018-05-02 | 2018-05-02 | A kind of repeatable locking axial locking structure using memorial alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810408306.9A CN110439884A (en) | 2018-05-02 | 2018-05-02 | A kind of repeatable locking axial locking structure using memorial alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439884A true CN110439884A (en) | 2019-11-12 |
Family
ID=68427375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810408306.9A Pending CN110439884A (en) | 2018-05-02 | 2018-05-02 | A kind of repeatable locking axial locking structure using memorial alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110439884A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169660A (en) * | 2019-12-12 | 2020-05-19 | 北京空间技术研制试验中心 | Exposed load support system for spacecraft |
| CN115675941A (en) * | 2022-10-19 | 2023-02-03 | 北京灵翼航宇科技有限公司 | Deployable lens hood |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201872957U (en) * | 2010-07-23 | 2011-06-22 | 郑钢铁 | Locking and unlocking device with two-stage driving |
| CN203248486U (en) * | 2013-04-16 | 2013-10-23 | 中国科学院金属研究所 | Non-hot-work-type pop-up unlocking device |
| CN203381788U (en) * | 2013-04-19 | 2014-01-08 | 南京航空航天大学 | Controlled unlocking device based on shape memory alloy spring |
| CN105035368A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Low-impact unlocking device allowing in-track repeated use and utilization method |
| 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 |
| CN107097980A (en) * | 2017-03-30 | 2017-08-29 | 北京临近空间飞行器系统工程研究所 | A kind of non-firer's stage separation structure |
| CN107352049A (en) * | 2017-06-06 | 2017-11-17 | 上海卫星工程研究所 | Spacecraft memorial alloy driving rope holds repeatable tripper tightly |
-
2018
- 2018-05-02 CN CN201810408306.9A patent/CN110439884A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201872957U (en) * | 2010-07-23 | 2011-06-22 | 郑钢铁 | Locking and unlocking device with two-stage driving |
| CN203248486U (en) * | 2013-04-16 | 2013-10-23 | 中国科学院金属研究所 | Non-hot-work-type pop-up unlocking device |
| CN203381788U (en) * | 2013-04-19 | 2014-01-08 | 南京航空航天大学 | Controlled unlocking device based on shape memory alloy spring |
| CN105035368A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Low-impact unlocking device allowing in-track repeated use and utilization method |
| 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 |
| CN107097980A (en) * | 2017-03-30 | 2017-08-29 | 北京临近空间飞行器系统工程研究所 | A kind of non-firer's stage separation structure |
| CN107352049A (en) * | 2017-06-06 | 2017-11-17 | 上海卫星工程研究所 | Spacecraft memorial alloy driving rope holds repeatable tripper tightly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169660A (en) * | 2019-12-12 | 2020-05-19 | 北京空间技术研制试验中心 | Exposed load support system for spacecraft |
| CN115675941A (en) * | 2022-10-19 | 2023-02-03 | 北京灵翼航宇科技有限公司 | Deployable lens hood |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |