CN209213333U - A kind of space can Automatic-expanding self-timer bracket - Google Patents
A kind of space can Automatic-expanding self-timer bracket Download PDFInfo
- Publication number
- CN209213333U CN209213333U CN201821759572.8U CN201821759572U CN209213333U CN 209213333 U CN209213333 U CN 209213333U CN 201821759572 U CN201821759572 U CN 201821759572U CN 209213333 U CN209213333 U CN 209213333U
- Authority
- CN
- China
- Prior art keywords
- torsional spring
- joint
- pin
- fixed link
- deck
- 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.)
- Active
Links
Landscapes
- Accessories Of Cameras (AREA)
Abstract
The utility model discloses a kind of space can Automatic-expanding self-timer bracket, including fixed device, electromagnetic locking device and self-presenting devices；Wherein fix the first fixed link, the second fixed link and third fixed link that device includes fixing seat and is successively vertically set in fixing seat；Self-presenting devices include the first joint, first movement bar, second joint, the second mobile bar and camera mounting base, are provided with torsional spring in the first joint and second joint.The space of the utility model can Automatic-expanding self-timer bracket, the principle driven using electromagnetic locking and torsional spring, in the case where electromagnetic locking device is powered and unlocks, self-timer bracket completes Automatic-expanding under the driving of torsional spring, solve the problems, such as it is existing it is at high cost using motor-driven expanding unit, volume is larger and reliability is poor, while also solving that the existing space retaining mechanism using priming system blasting bolt is with high costs, influences aircraft safety and the technical issues of reliability.
Description
Technical field
The utility model relates to it is a kind of can Automatic-expanding self-timer bracket, and in particular to one kind for space craft into
Row self-timer can Automatic-expanding self-timer bracket institution.
Background technique
In recent years, business space flight and civil aerospace technology emerge rapidly, and various types of micro-nano satellites and other small spaces fly
Row device emerges one after another, and the acquisition of monitoring and image information for small-sized space craft operation on orbit state becomes increasingly to compel
It cuts.
In the means for obtaining small-sized space craft operation on orbit state image information, too with traditional large-scale model task
Empty aircraft has relatively big difference.Traditional large size model task space craft, goes up ton, physique is huge, and multiple phases can be used easily
Machine is directly installed on the different location of large-scale space craft outer surface, can be completed to the multiple positions of large-scale space craft
Monitoring and image information obtain.For small-sized space craft, due to the limitation of volume and weight, it is impossible to use multiple cameras
The acquisition of operation on orbit state image information is carried out simultaneously, and single camera is directly mounted at small aircraft outer surface, depending on
Field can only cover the very small part of small aircraft.If carried out outside certain distance to small aircraft using single camera
Shooting, can be obtained biggish field coverage.
Camera can be realized outside certain distance to the shooting of small aircraft using self-timer bracket.Self-timer bracket is generally
Long rod structure, in order to enable small aircraft has lesser outer dimension, while in order to guarantee launching phase self-timer bracket have compared with
Good rigidity, self-timer bracket needs to shrink or fold up before small aircraft is entered the orbit, and self-timer bracket is completed after entering the orbit
Automatic-expanding.
For disposably shrinking expansion, using motor driven higher cost, volume is larger and reliability is poor.Contraction-like
The reliability locked when state is particularly important, and traditional space retaining mechanism mostly uses priming system blasting bolt, and for it is small-sized too
Empty aircraft, the biggish impact of blasting bolt will substantially reduce the safety of the in-orbit normal operation of small aircraft and reliable
Property.Priming system is with high costs, is also not suitable for the small-sized space craft with business space flight background of low cost.
Summary of the invention
The deficiency of new demand and conventional shrink expansion technique for above-mentioned small aircraft self-timer, the utility model provide
A kind of space can Automatic-expanding self-timer bracket, be suitable for small-sized space craft, and reliability with higher and safety
Property.
To achieve the above object, technical solution provided by the utility model is:
A kind of space can Automatic-expanding self-timer bracket, be characterized in that including fixed device, electromagnetic locking device
And self-presenting devices；
The first fixed link 1, second that the fixed device includes fixing seat 11 and is successively vertically set in fixing seat 11
Fixed link 2 and third fixed link 3, the second fixed link 2 is between the first fixed link 1 and third fixed link 3；
The electromagnetic locking device includes the first electromagnetic locking mechanism 8 and the second electromagnetic locking mechanism 9；
The self-presenting devices include the first joint 6, first movement bar 4, second joint 7, the second mobile bar 5 and camera
Mounting base 10；
First joint 6 includes the first joint frame 6-1, the first articulated shaft 6-2, torsional spring group one and baffle group one；
The first joint frame 6-1 is fixedly connected with the first fixed link 1, is provided at least on the first joint frame 6-1
One the first torsional spring mounting groove 6-6；
The torsional spring group one includes that at least one first torsional spring 6-4, each first torsional spring 6-4 is sleeved on the first articulated shaft 6-2
It goes up and is located in the first torsional spring mounting groove 6-6, every one first torsional spring mounting groove 6-6 one the first torsional spring 6-4 of corresponding installation, each
There is a fixing end at the both ends of first torsional spring 6-4 respectively, and middle part has a torsion end, and two fixing ends are separately fixed at first
On the cell wall of torsional spring mounting groove 6-6, the torsion end at middle part is used to cooperate with a linking arm of 4 one end of first movement bar；
The baffle group one is fixedly connected with the first joint frame 6-1, and first moves when for discharging to the first torsional spring 6-4 elastic force
The rotational angle of lever 4 is limited；
The linking arm of described 4 one end of first movement bar be located at the torsion end of the first torsional spring 6-4 and with the first articulated shaft 6-2
Hingedly, the other end of first movement bar 4 is fixedly connected after reversing the first torsional spring 6-4 with second joint 7；
The second joint 7 is locked by the first electromagnetic locking mechanism 8 with third fixed link 3,
The second joint 7 includes second joint frame 7-1, the second articulated shaft 7-2, torsional spring group two and baffle group two；
The second joint 7 is fixedly connected by second joint frame 7-1 with the other end of first movement bar 4, and described second
At least one second torsional spring mounting groove 7-6 is provided on the frame 7-1 of joint；
The torsional spring group two includes that at least one second torsional spring 7-4, each second torsional spring 7-4 is sleeved on the second articulated shaft 7-2
It goes up and is located in the second torsional spring mounting groove 7-6, every one second torsional spring mounting groove 7-6 one the second torsional spring 7-4 of corresponding installation, each
There is a fixing end at the both ends of second torsional spring 7-4 respectively, and middle part has a torsion end, and two fixing ends are separately fixed at second
On the cell wall of torsional spring mounting groove 7-6, for cooperating with a linking arm of 5 one end of the second mobile bar at the torsion end at middle part；
The baffle group two is fixedly connected with second joint frame 7-1, and second moves when for discharging to the second torsional spring 7-4 elastic force
The rotational angle of lever 5 is limited；
One end of second mobile bar 5 is located at the second torsional spring 7-4 torsion end and hinged with the second articulated shaft 7-2；The
The other end of two mobile bars 5 is fixedly connected with camera mounting base 10, and reversing the second torsional spring 7-4 makes camera mounting base 10 be located at the
At two fixed links 2；Camera mounting base 10 is locked by the second electromagnetic locking mechanism 9 and the second fixed link 2.
Further, first electromagnetic locking mechanism 8 includes the first pull ring 8-6, the first deck 8-4, the first pin 8-5
And the first electromagnetism pulling pin component；
The first pull ring 8-6 is fixed on second joint frame 7-1；
The first deck 8-4 is fixedly connected with third fixed link 3, and the first deck 8-4 passes through the first pin 8-5 and the
One pull ring 8-6 locking；
The side of the first deck 8-4 is arranged in the first electromagnetism pulling pin component, and the first electromagnetism pulling pin component includes
First iron core 8-2, the first electromagnet 8-1, the first iron core 8-2 stretch out the fixed company of the first electromagnet 8-1 and the first pin 8-5
Connect, in the case where the first electromagnet 8-1 is powered, the first iron core 8-2 and the first electromagnet 8-1 be attracted generate it is mobile thus by the
One pin 8-5 is pulled out.
Further, second electromagnetic locking mechanism 9 includes the second pull ring 9-6, the second deck 9-4, the second pin 9-5
And the second electromagnetism pulling pin component；
The second pull ring 9-6 is fixed in camera mounting base 10；
The second deck 9-4 is fixedly connected with the second fixed link 2, and the second deck 9-4 passes through the second pin 9-5 and the
Two pull ring 9-6 locking；
The side of the second deck 9-4 is arranged in the second electromagnetism pulling pin component, and the second electromagnetism pulling pin component includes
Second iron core 9-2, the second electromagnet 9-1, the second iron core 9-2 stretch out the fixed company of the second electromagnet 9-1 and the second pin 9-5
It connects, in the case where the second electromagnet 9-1 is powered, the second iron core 9-2 and the second electromagnet 9-1 are attracted to generate and move from by second
Pin 9-5 is pulled out.
Further, first electromagnetic locking mechanism 8 further includes the first pressure spring 8-3；
The first baffle ring is further fixedly arranged on the outside of one end that the first iron core 8-2 is fixedly connected with the first pin 8-5
8-8；
The first pressure spring 8-3 is arranged between the first baffle ring 8-8 and the first electromagnet 8-1.
Further, second electromagnetic locking mechanism 9 further includes the second pressure spring 9-3；
The second baffle ring is further fixedly arranged on the outside of one end that the second iron core 9-2 is fixedly connected with the second pin 9-5
9-8；
The second pressure spring 9-3 is arranged between the second baffle ring 9-8 and the second electromagnet 9-1.
Further, the first joint frame 6-1 includes two the first torsional spring mounting groove 6-6,
The torsional spring group one includes that two first torsional springs 6-4, two the first torsional spring 6-4 are located at two the first torsional spring peaces
In tankage 6-6；
There are two linking arm, two linking arm correspondences to set for one end setting that the first movement bar 4 is connect with the first joint 6
It sets at the torsion end of two the first torsional spring 6-4.
Further, the second joint frame 7-1 includes two the second torsional spring mounting groove 7-6,
The torsional spring group two includes that two second torsional springs 7-4, two the second torsional spring 7-4 are located at two the second torsional spring peaces
In tankage 7-6；
There are two linking arm, two linking arm correspondences to set for one end setting that second mobile bar 5 is connect with second joint 7
It sets at the torsion end of two the second torsional spring 7-4.
Further, the first pin 8-5 in first electromagnetic locking mechanism 8 and the first deck 8-4 and the first pull ring
Matching for 8-6 is combined into clearance fit；
Matching for the second pin 9-5, the second deck 9-4 and the second pull ring 9-6 in second electromagnetic locking mechanism 9 is combined into
Clearance fit.
Further, first fixed link 1, the second fixed link 2, third fixed link 3, first movement bar 4, second are mobile
Bar 5 is hollow stem；
The first optoelectronic switch 6-5 is provided at first joint 6；
The second optoelectronic switch 7-5 is provided at the second joint 7.
Further, the first pin 8-5 in first electromagnetic locking mechanism 8 uses H62 copper product, the first deck 8-
4 use 304 stainless steel materials, and the first pull ring 8-6 uses TC4 titanium alloy material；
The second pin 9-5 in second electromagnetic locking mechanism 9 uses H62 copper product, and the second deck 9-4 uses 304
Stainless steel material, the second pull ring 9-6 use TC4 titanium alloy material.
Compared with prior art, beneficial effect is the utility model:
1, the space of the utility model can Automatic-expanding self-timer bracket, the principle driven using electromagnetic locking and torsional spring,
In the case where electromagnetic locking device is powered and unlocks, self-timer bracket completes Automatic-expanding under the driving of torsional spring, is not necessarily to any electricity
Son learns driving and control assembly, and structure is simple, and small in size, reliability is higher.
2, the space of the utility model can Automatic-expanding self-timer bracket, the retaining mechanism of self-timer bracket is complete using electromagnet
Driving when at unlock, relatively traditional priming system unlocks form, smaller to the impact of aircraft and self-timer bracket, to camera lens
It is pollution-free, there is higher safety and reliability.
3, the space of the utility model can Automatic-expanding self-timer bracket, the first electromagnetic locking mechanism and the second electromagnetic locking
Pressure spring is provided in mechanism between iron core and electromagnet, pin is tightly pressed at the inner hole of deck and pull ring by iron core by pressure spring
In, which can prevent under the severe mechanical environment of launching phase, and iron core and pin are along axial float so as to cause locking
It fails and unlocks in advance, ensure that the reliability and safety of retaining mechanism under severe mechanical environment.
4, the space of the utility model can Automatic-expanding self-timer bracket, the first electromagnetic locking mechanism and the second electromagnetic locking
In mechanism, different materials is respectively adopted in pin, deck and pull ring, prevents from occurring after the extreme high/low temperature changed repeatedly cold
Weldering, can not unlock so as to cause retaining mechanism.
5, the space of the utility model can Automatic-expanding self-timer bracket, self-timer bracket use hollow rod-shaped structure type,
Contraction mode is the folding of three hollow stems, has reached preferable lightweight and miniaturization purpose.
6, the space of the utility model can Automatic-expanding self-timer bracket, mobile bar use two linking arms structure shape
Formula, increases the length in the shaft hole matching face of mobile bar and articulated shaft, is passed through hingedly to improve by mobile bar and joint frame
The strength and stability of linkwork composed by axis, mobile bar opposed articulation frame will not be because of shaft hole matching gap after guaranteeing expansion
And generate swing.
In addition, mobile bar uses the structure type of two linking arms, the torsional spring group that driving effect is played in joint can be made
Using two torsional springs, when the failure of one of torsional spring or elastic force decrease, another torsional spring can still guarantee joint
Normal Automatic-expanding increases the reliability and safety of the driving function in joint, while but also the driving function in joint has
Enough power.
7, the space of the utility model can Automatic-expanding self-timer bracket, the joint of self-timer bracket devises photoelectricity and opens
It closes, after expanding in place, optoelectronic switch will obtain trigger signal, return to the state letter that self-timer bracket has been unfolded to system in real time
Breath.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is the utility model embodiment self-timer stent collapses；
Fig. 2 is the structural schematic diagram after the expansion of the embodiment self-timer bracket first step；
Fig. 3 is the structural schematic diagram after embodiment self-timer bracket second step is unfolded (after being fully deployed)；
Fig. 4 is the structural schematic diagram in the first joint in embodiment；
Fig. 5 is the structural schematic diagram of the first electromagnetic locking mechanism in embodiment；
Fig. 6 is the structural schematic diagram of second joint in embodiment；
Fig. 7 is the structural schematic diagram of the second electromagnetic locking mechanism in embodiment.
Wherein appended drawing reference are as follows: the first fixed link of 1-, the second fixed link of 2-, 3- third fixed link, 4- first movement bar, 5-
Second mobile bar, the first joint 6-, the first joint 6-1- frame, the first articulated shaft of 6-2-, 6-3- first baffle, 6-4- first are turned round
Spring, the first optoelectronic switch of 6-5-, the first torsional spring of 6-6- mounting groove, 7- second joint, 7-1- second joint frame, 7-2- second are hinged
Axis, 7-3- second baffle, the second torsional spring of 7-4-, the second optoelectronic switch of 7-5-, the second torsional spring of 7-6- mounting groove, the first electromagnetic lock of 8-
Tight mechanism, the first electromagnet of 8-1-, the first iron core of 8-2-, the first pressure spring of 8-3-, the first deck of 8-4-, the first pin of 8-5-, 8-
The first pull ring of 6-, the first electromagnet base of 8-7-, the first baffle ring of 8-8-, the second electromagnetic locking of 9- mechanism, the second electromagnet of 9-1-, 9-
The second iron core of 2-, the second pressure spring of 9-3-, the second deck of 9-4-, the second pin of 9-5-, the second pull ring of 9-6-, the second electromagnet of 9-7-
Seat, the second baffle ring of 9-8-, 10- camera mounting base, 11- fixing seat, 12- camera.
Specific embodiment
The utility model space can Automatic-expanding self-timer bracket principle and expansion process it is as follows:
Principle: first movement bar 4 is fixedly connected by the first joint 6 with the first fixed link 1, inside the first joint 6
Under the action of first torsional spring 6-4, first movement bar 4 can be rotated relative to the first fixed link 1.In the other end of first movement bar 4
There is the first electromagnetic locking mechanism 8 between fixed second joint 7 and third fixed link 3, the first electromagnetic locking mechanism 8 is by first
Mobile bar 4 is locked on one end of third fixed link 3.
One end of second mobile bar 5 is connect by second joint 7 with first movement bar 4, in 7 inside torsional spring of second joint
Under promotion, the second mobile bar 5 can be rotated relative to first movement bar 4.In the fixed camera installation in the other end of the second mobile bar 5
There is the second electromagnetic locking mechanism 9 between seat 10 and the second fixed link 2, the second electromagnetic locking mechanism 9 can lock the second mobile bar 5
On one end of the second fixed link 2.
The composition of first electromagnetic locking mechanism 8 and the second electromagnetic locking mechanism 9 is identical as principle, all by pin, deck, drawing
Ring and electromagnetism pulling pin component are constituted.Electromagnetism pulling pin component includes iron core, electromagnet, and one end of iron core is fixedly connected with pin.?
When locking, pull ring is put in deck, and pin sequentially passes through the inner hole of the deck and the pull ring, and pull ring is fixed on deck
It is interior.In unlock, electromagnet is powered, and iron core is retracted in electromagnet, and pin is pulled out out of deck and pull ring inner hole by iron core,
Pull ring is in respect to deck and freely moves state, to complete to unlock.
Expansion process:
Step 1: in conjunction with Fig. 1 and Fig. 7, the second electromagnet 9-1 is powered for expansion, the unlock of the second electromagnetic locking mechanism 9, second
The release of torsional spring 7-4 elasticity, the second mobile bar 5 rotate to the position after expansion, the second light around two 7-2 of axis with respect to first movement bar 4
Electric switch 7-5 obtains trigger signal, returns to the status information that the second mobile bar 5 has been unfolded to system.It is illustrated in figure 2 the first step
Self-timer bracket after expansion.
Second step is unfolded, in conjunction with Fig. 2 and Fig. 5, one 8-1 of electromagnetism is powered, the unlock of the first electromagnetic locking mechanism 8, the first torsional spring
The release of 6-4 elasticity, first movement bar 4 rotate to the position after expansion around one 6-2 of axis with respect to the first fixed link 1, and the first photoelectricity is opened
It closes 6-5 and obtains trigger signal, return to the status information that first movement bar 4 has been unfolded to system.It is illustrated in figure 3 second step expansion
Self-timer bracket (after final expansion) afterwards.
It is described in detail below in conjunction with a preferred embodiment of the attached drawing to the utility model.
In conjunction with Fig. 1, space can Automatic-expanding self-timer supporting structure composition mainly have: the first fixed link 1, the second fixed link
2, third fixed link 3, first movement bar 4, the second mobile bar 5, the first joint 6, second joint 7, the first electromagnetic locking mechanism 8,
Second electromagnetic locking mechanism 9 and camera mounting base 10.Camera mounting base 10 is for installing camera 12.
Fixing seat 11 in the utility model embodiment is aircraft deck board.
The component of same function uses same structure form as far as possible in the utility model embodiment, partially uses identical zero
Part, such structure type reduce the complexity of system composition, reduce part category, reduce the processing cost of part.
Based on the purpose of lightweight, high intensity and High Reliability Design, the first fixed link 1, second in self-timer bracket is solid
Fixed pole 2, third fixed link 3, first movement bar 4, the second mobile bar 5 all select space equipment common used material-duralumin, hard alumin ium alloy
2A12-T4 is all hollow rod structure type.
In conjunction with Fig. 4, first movement bar 4 is connect by the first joint 6 with the first fixed link 1.First joint 6 is by the first joint
Frame 6-1, one 6-2 of axis, two first baffle 6-3, two the first torsional spring 6-4, the first optoelectronic switch 6-5 compositions.First joint frame
6-1 includes two the first torsional spring mounting groove 6-6, and torsional spring group one includes two the first torsional spring 6-4, two the first torsional spring 6-4 difference
In two the first torsional spring mounting groove 6-6；Under the promotion of two the first torsional spring 6-4, first movement bar 4 can be with one 6- of axis
2 rotate for shaft relative to the first fixed link 1.In conjunction with Fig. 2 and Fig. 3, when rotational angle is about 80 °, at this moment two first gear
Plate 6-3 can block first movement bar 4, prevent continuing to rotate for first movement bar 4.At this point, two the first torsional spring 6-4 still have it is larger
Elastic force does not discharge, and first movement bar 4 is tightly pressed against on two first baffle 6-3, so that first movement bar 4 opposite first is consolidated
Fixed pole 1 keeps relative static conditions.First optoelectronic switch 6-5 is housed on first baffle 6-3, when first movement bar 4 encounters the
When one baffle 6-3, the first optoelectronic switch 6-5 will obtain trigger signal, return to the state that first movement bar 4 has been unfolded to system
Information.
In conjunction with Fig. 2 and Fig. 5, in a fixed second joint 7 of first movement bar 4, second joint 7 and third fixed link
There is the first electromagnetic locking mechanism 8 between 3, first movement bar 4 is locked in third fixed link 3.First electromagnetic locking mechanism 8 by
First electromagnet 8-1, the first iron core 8-2, the first pressure spring 8-3, the first deck 8-4, the first pin 8-5, the first pull ring 8-6,
One electromagnet base 8-7, the first baffle ring 8-8 composition.The first iron core 8-2 that first pin 8-5 and the first electromagnet 8-1 are stretched is solid
Connection.First deck 8-4 and third fixed link 3 are connected, and the first pull ring 8-6 and second joint 7 are connected.In locking, the first pull ring
8-6 is put in the first deck 8-4, and the first pin 8-5 sequentially passes through the inner hole of the first deck 8-4 and the first pull ring 8-6, and first draws
Ring 8-6 is just fixed in the first deck 8-4.In unlock, the first electromagnet 8-1 is powered, the first electricity of the first iron core 8-2 retraction
In magnet 8-1, the first pin 8-5 is pulled out from the inner hole of the first deck 8-4 and the first pull ring 8-6 by the first iron core 8-2, the
One pull ring 8-6 is in respect to the first deck 8-4 and freely moves state, to complete to unlock.
In conjunction with Fig. 5, under the severe mechanical environment of launching phase, the first iron core 8-2 and the first pin 8-5 may be along axis
To play, unlocked in advance so as to cause locking failure.Therefore, one end that the first iron core 8-2 is fixedly connected with the first pin 8-5
Outside be further fixedly arranged on the first baffle ring 8-8；The first pressure spring is devised between the first baffle ring 8-8 and the first electromagnet 8-1
First pin 8-5 is tightly pressed at the first deck 8-4 and the first pull ring 8-6 by the first iron core 8-2 by 8-3, the first pressure spring 8-3
Inner hole in, ensure that the reliability and safety of the first electromagnetic locking mechanism 8 under severe mechanical environment.
In conjunction with Fig. 5, after experience launching phase severe mechanical environment, the inner hole of the first deck 8-4 and the first pull ring 8-6
Inner hole dislocation slightly may occur, the first pin 8-5 is jammed due to by larger shearing force, so as to lead to
One electromagnetic locking mechanism 8 is subsequent to be unlocked.It is such in order to prevent to happen, the outer circle and the first deck of the first pin 8-5
The cooperation of the inner hole of 8-4 and the first pull ring 8-6 uses very loose clearance fit form so that the first pin 8-5 not will receive compared with
Big shearing force, the first electromagnetic locking mechanism of guarantee 8 is subsequent being capable of normal release.
After self-timer bracket enters space, extreme high/low temperature can be undergone to change repeatedly, the phase mutual connection between structural member
Cold welding may occur in contacting surface.In conjunction with Fig. 5, the first pin 8-5, the first deck 8-4, any two in the first pull ring 8-6 three
It is likely to that cold welding occurs on the face that contacts with each other of person, so as to cause that can not unlock.According to the mechanism of cold welding it is found that different materials
Between cold welding degree be far smaller than the cold welding between same material.Therefore, the case where cold welding causes unlock to be failed in order to prevent
Occur, the first pin 8-5 uses H62 copper product, and the first deck 8-4 uses 304 stainless steel materials, and the first pull ring 8-6 uses TC4
Titanium alloy material.
In conjunction with Fig. 6, the second mobile bar 5 is connect by second joint 7 with first movement bar 4.Second joint 7 is by second joint
Frame 7-1, two 7-2 of axis, two second baffle 7-3, two the second torsional spring 7-4, the second optoelectronic switch 7-5 compositions.Second joint frame
7-1 includes two the second torsional spring mounting groove 7-6, and torsional spring group two includes two the second torsional spring 7-4, two the second torsional spring 7-4 difference
In two the second torsional spring mounting groove 7-6.Under the promotion of two the second torsional spring 7-4, the second mobile bar 5 can be with two 7- of axis
2 rotate for shaft relative to first movement bar 4.Combined with Figure 1 and Figure 2, when rotational angle is about 160 °, at this moment two second gear
Plate 7-3 can block the second mobile bar 5, prevent continuing to rotate for the second mobile bar 5.At this point, two the second torsional spring 7-4 still have it is larger
Elastic force does not discharge, and the second mobile bar 5 is tightly pressed against on two second baffle 7-3, so that the second mobile bar 5 opposite first is moved
Lever 4 keeps relative static conditions.Second optoelectronic switch 7-5 is housed on second baffle 7-3, when the second mobile bar 5 encounters the
When two baffle 7-3, the second optoelectronic switch 7-5 will obtain trigger signal, return to the state that the second mobile bar 5 has been unfolded to system
Information.
In conjunction with Fig. 1 and Fig. 7, in the fixed camera mounting base 10 in the other end of the second mobile bar 5, camera mounting base 10 and
There is the second electromagnetic locking mechanism 9 between two fixed links 2, the second mobile bar 5 is locked in the second fixed link 2.Second electromagnetic lock
Tight mechanism 9 is drawn by the second electromagnet 9-1, the second iron core 9-2, the second pressure spring 9-3, the second deck 9-4, the second pin 9-5, second
Ring 9-6, the second electromagnet base 9-7, the second baffle ring 9-8 composition.Second pin 9-5 and the second electromagnet 9-1 stretch second
Iron core 9-2 is connected firmly.Second deck 9-4 and the second fixed link 2 are connected, and the second pull ring 9-6 and camera mounting base 10 are connected.It is locking
When, the second pull ring 9-6 is put in the second deck 9-4, and the second pin 9-5 sequentially passes through the second deck 9-4's and the second pull ring 9-6
Inner hole, the second pull ring 9-6 are just fixed in the second deck 9-4.In unlock, the second electromagnet 9-1 is powered, the second iron core 9-
In 2 the second electromagnet 9-1 of retraction, the second pin 9-5 is by the second iron core 9-2 from the inner hole of the second deck 9-4 and the second pull ring 9-6
In pull out, the second pull ring 9-6 with respect to the second deck 9-4 be in freely move state, to complete to unlock.
In conjunction with Fig. 7, under the severe mechanical environment of launching phase, the second iron core 9-2 and the second pin 9-5 may be along axis
To play, unlocked in advance so as to cause locking failure.Therefore, one be fixedly connected in the second iron core 9-2 with the second pin 9-5
The second baffle ring 9-8 is further fixedly arranged on the outside of end；The second pressure is devised between the second baffle ring 9-8 and the second electromagnet 9-1
Second pin 9-5 is tightly pressed at the second deck 9-4 and the second pull ring by the second iron core 9-2 by spring 9-3, the second pressure spring 9-3
In the inner hole of 9-6, the reliability and safety of the second electromagnetic locking mechanism 9 under severe mechanical environment ensure that.
In conjunction with Fig. 7, after experience launching phase severe mechanical environment, the inner hole of the second deck 9-4 and the second pull ring 9-6
Inner hole dislocation slightly may occur, the second pin 9-5 is jammed due to by larger shearing force, so as to lead to
Two electromagnetic locking mechanisms 9 are subsequent to be unlocked.It is such in order to prevent to happen, the outer circle and the second deck of the second pin 9-5
The cooperation of the inner hole of 9-4 and the second pull ring 9-6 uses very loose clearance fit form so that the second pin 9-5 not will receive compared with
Big shearing force, the second electromagnetic locking mechanism of guarantee 9 is subsequent being capable of normal release.
After self-timer bracket enters space, extreme high/low temperature can be undergone to change repeatedly, the phase mutual connection between structural member
Cold welding may occur in contacting surface.In conjunction with Fig. 7, the second pin 9-5, the second deck 9-4, any two in the second pull ring 9-6 three
It is likely to that cold welding occurs on the face that contacts with each other of person, so as to cause that can not unlock.According to the mechanism of cold welding it is found that different materials
Between cold welding degree be far smaller than the cold welding between same material.Therefore, the case where cold welding causes unlock to be failed in order to prevent
Occur, the second pin 9-5 uses H62 copper product, and the second deck 9-4 uses 304 stainless steel materials, and the second pull ring 9-6 uses TC4
Titanium alloy material.
According to the structure composition feature of self-timer bracket, self-timer, optoelectronic switch cable need along three sections of bars (second
Mobile bar 5, first movement bar 4, the first fixed link 1) it reaches in aircraft deck board, in rod piece and joint, do not influencing to be unfolded
In the case where movement, divide segment by cable binding on bar and joint, point epoxy glue is locking at binding.It is reserved in joint larger
Line around surplus, guarantee self-timer bracket in the state of expansion and contraction, cable will not be pullled.
The self-timer bracket of the utility model embodiment in a contracted state, has preferable rigidity, can satisfy space product
In the severe mechanical environment requirement of launching phase.Self-timer bracket is in the case where installing the contraction state after 0.8Kg self-timer, the first rank
Intrinsic frequency is 146Hz, and second-order intrinsic frequency is 177Hz.
The self-timer bracket of the utility model embodiment has biggish expansion shrinkage ratio.Self-timer bracket and self-timer assembly
When shrinking, height is not more than 200mm, and height is greater than 650mm after deployment, wherein distance of the camera front end to aircraft deck board
Greater than 500mm.
Claims (10)
1. a kind of space can Automatic-expanding self-timer bracket, it is characterised in that: including fixed device, electromagnetic locking device and automatic
Expanding unit；
The fixed device includes fixing seat (11) and the first fixed link (1) being successively vertically set on fixing seat (11),
Two fixed links (2) and third fixed link (3), the second fixed link (2) is between the first fixed link (1) and third fixed link (3)；
The electromagnetic locking device includes the first electromagnetic locking mechanism (8) and the second electromagnetic locking mechanism (9)；
The self-presenting devices include the first joint (6), first movement bar (4), second joint (7), the second mobile bar (5) and
Camera mounting base (10)；
First joint (6) includes the first joint frame (6-1), the first articulated shaft (6-2), torsional spring group one and baffle group one；
First joint frame (6-1) is fixedly connected with the first fixed link (1), be provided on first joint frame (6-1) to
A few first torsional spring mounting groove (6-6)；
The torsional spring group one includes at least one first torsional spring (6-4), and each first torsional spring (6-4) is sleeved on the first articulated shaft (6-
2) on and it is located in the first torsional spring mounting groove (6-6), every one first torsional spring mounting groove (6-6) one the first torsional spring of corresponding installation
There is a fixing end at (6-4), the both ends of each first torsional spring (6-4) respectively, and middle part has a torsion end, two fixing ends point
It is not fixed on the cell wall of the first torsional spring mounting groove (6-6), the torsion end at middle part is for one with first movement bar (4) one end
Linking arm cooperation；
The baffle group one is fixedly connected with the first joint frame (6-1), and first moves when for discharging to the first torsional spring (6-4) elastic force
The rotational angle of lever (4) is limited；
The linking arm of described first movement bar (4) one end be located at the torsion end of the first torsional spring (6-4) and with the first articulated shaft (6-
2) hingedly, the other end torsion the first torsional spring (6-4) of first movement bar (4) is fixedly connected with second joint (7) afterwards；
The second joint (7) is locked by the first electromagnetic locking mechanism (8) and third fixed link (3),
The second joint (7) includes second joint frame (7-1), the second articulated shaft (7-2), torsional spring group two and baffle group two；
The second joint (7) is fixedly connected by second joint frame (7-1) with the other end of first movement bar (4), and described
At least one second torsional spring mounting groove (7-6) is provided on two joint framves (7-1)；
The torsional spring group two includes at least one second torsional spring (7-4), and each second torsional spring (7-4) is sleeved on the second articulated shaft (7-
2) on and it is located in the second torsional spring mounting groove (7-6), every one second torsional spring mounting groove (7-6) one the second torsional spring of corresponding installation
There is a fixing end at (7-4), the both ends of each second torsional spring (7-4) respectively, and middle part has a torsion end, two fixing ends point
It is not fixed on the cell wall of the second torsional spring mounting groove (7-6), for one with the second mobile bar (5) one end at the torsion end at middle part
A linking arm cooperation；
The baffle group two is fixedly connected with second joint frame (7-1), and second moves when for discharging to the second torsional spring (7-4) elastic force
The rotational angle of lever (5) is limited；
One end of second mobile bar (5) is located at the second torsional spring (7-4) torsion end and hinged with the second articulated shaft (7-2)；
The other end of second mobile bar (5) is fixedly connected with camera mounting base (10), and torsion the second torsional spring (7-4) makes camera mounting base
(10) it is located at the second fixed link (2)；Camera mounting base (10) passes through the second electromagnetic locking mechanism (9) and the second fixed link (2)
Locking.
2. space according to claim 1 can Automatic-expanding self-timer bracket, it is characterised in that:
First electromagnetic locking mechanism (8) includes the first pull ring (8-6), the first deck (8-4), the first pin (8-5) and the
One electromagnetism pulling pin component；
First pull ring (8-6) is fixed on second joint frame (7-1)；
First deck (8-4) is fixedly connected with third fixed link (3), and the first deck (8-4) passes through the first pin (8-5)
It is locked with the first pull ring (8-6)；
In the side of the first deck (8-4), the first electromagnetism pulling pin component includes for first electromagnetism pulling pin component setting
One iron core (8-2), the first electromagnet (8-1), first iron core (8-2) stretch out the first electromagnet (8-1) and the first pin (8-
5) it is fixedly connected, in the case where the first electromagnet (8-1) is powered, the first iron core (8-2) and the first electromagnet (8-1) are attracted and produce
It is raw mobile to pull out the first pin (8-5).
3. space according to claim 1 can Automatic-expanding self-timer bracket, it is characterised in that:
Second electromagnetic locking mechanism (9) includes the second pull ring (9-6), the second deck (9-4), the second pin (9-5) and the
Two electromagnetism pulling pin components；
Second pull ring (9-6) is fixed on camera mounting base (10)；
Second deck (9-4) is fixedly connected with the second fixed link (2), and the second deck (9-4) passes through the second pin (9-5)
It is locked with the second pull ring (9-6)；
In the side of the second deck (9-4), the second electromagnetism pulling pin component includes for second electromagnetism pulling pin component setting
Two iron cores (9-2), the second electromagnet (9-1), second iron core (9-2) stretch out the second electromagnet (9-1) and the second pin (9-
5) it is fixedly connected, in the case where the second electromagnet (9-1) is powered, the second iron core (9-2) and the second electromagnet (9-1) are attracted and produce
Raw movement is pulled out from by the second pin (9-5).
4. space according to claim 2 can Automatic-expanding self-timer bracket, it is characterised in that:
First electromagnetic locking mechanism (8) further includes the first pressure spring (8-3)；
The first baffle ring is further fixedly arranged on the outside of one end that first iron core (8-2) is fixedly connected with the first pin (8-5)
(8-8)；
First pressure spring (8-3) is arranged between the first baffle ring (8-8) and the first electromagnet (8-1).
5. space according to claim 3 can Automatic-expanding self-timer bracket, it is characterised in that:
Second electromagnetic locking mechanism (9) further includes the second pressure spring (9-3)；
The second baffle ring is further fixedly arranged on the outside of one end that second iron core (9-2) is fixedly connected with the second pin (9-5)
(9-8)；
Second pressure spring (9-3) is arranged between the second baffle ring (9-8) and the second electromagnet (9-1).
6. space according to any one of claims 1 to 5 can Automatic-expanding self-timer bracket, it is characterised in that:
First joint frame (6-1) includes two the first torsional spring mounting grooves (6-6),
The torsional spring group one includes two the first torsional springs (6-4), and two the first torsional springs (6-4) are located at two the first torsional spring peaces
In tankage (6-6)；
There are two linking arm, two linking arm correspondences to set for one end setting that the first movement bar (4) connect with the first joint (6)
It sets at the torsion end of two the first torsional springs (6-4).
7. space according to claim 6 can Automatic-expanding self-timer bracket, it is characterised in that:
The second joint frame (7-1) includes two the second torsional spring mounting grooves (7-6),
The torsional spring group two includes two the second torsional springs (7-4), and two the second torsional springs (7-4) are located at two the second torsional spring peaces
In tankage (7-6)；
There are two linking arm, two linking arm correspondences to set for one end setting that second mobile bar (5) connect with second joint (7)
It sets at the torsion end of two the second torsional springs (7-4).
8. space according to claim 1 can Automatic-expanding self-timer bracket, it is characterised in that:
First fixed link (1), the second fixed link (2), third fixed link (3), first movement bar (4), the second mobile bar (5)
It is hollow stem；
The first optoelectronic switch (6-5) is provided at first joint (6)；
The second optoelectronic switch (7-5) is provided at the second joint (7).
9. space according to claim 2 can Automatic-expanding self-timer bracket, it is characterised in that:
The first pin (8-5) in first electromagnetic locking mechanism (8) and the first deck (8-4's) and the first pull ring (8-6)
With being combined into clearance fit；
The first pin (8-5) in first electromagnetic locking mechanism (8) uses H62 copper product, and the first deck (8-4) uses
304 stainless steel materials, the first pull ring (8-6) use TC4 titanium alloy material.
10. space according to claim 3 can Automatic-expanding self-timer bracket, it is characterised in that:
The second pin (9-5), the second deck (9-4) and the second pull ring (9-6) in second electromagnetic locking mechanism (9) are matched
It is combined into clearance fit；
The second pin (9-5) in second electromagnetic locking mechanism (9) uses H62 copper product, and the second deck (9-4) uses
304 stainless steel materials, the second pull ring (9-6) use TC4 titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821759572.8U CN209213333U (en) | 2018-10-29 | 2018-10-29 | A kind of space can Automatic-expanding self-timer bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821759572.8U CN209213333U (en) | 2018-10-29 | 2018-10-29 | A kind of space can Automatic-expanding self-timer bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213333U true CN209213333U (en) | 2019-08-06 |
Family
ID=67457342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821759572.8U Active CN209213333U (en) | 2018-10-29 | 2018-10-29 | A kind of space can Automatic-expanding self-timer bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253358A (en) * | 2018-10-29 | 2019-01-22 | 中国科学院西安光学精密机械研究所 | A kind of space can Automatic-expanding self-timer bracket |
| CN111806724A (en) * | 2020-06-22 | 2020-10-23 | 中国科学院西安光学精密机械研究所 | Satellite and space station mechanical arm expansion control judgment system and method |
| CN114520869A (en) * | 2020-11-20 | 2022-05-20 | 北京九天微星科技发展有限公司 | Method for realizing space self-timer |
| WO2022171588A1 (en) * | 2021-02-09 | 2022-08-18 | Deployables Cubed GmbH | Boom system for a satellite |
-
2018
- 2018-10-29 CN CN201821759572.8U patent/CN209213333U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253358A (en) * | 2018-10-29 | 2019-01-22 | 中国科学院西安光学精密机械研究所 | A kind of space can Automatic-expanding self-timer bracket |
| CN109253358B (en) * | 2018-10-29 | 2024-04-05 | 中国科学院西安光学精密机械研究所 | Space can be from auto heterodyne support of expansion |
| CN111806724A (en) * | 2020-06-22 | 2020-10-23 | 中国科学院西安光学精密机械研究所 | Satellite and space station mechanical arm expansion control judgment system and method |
| CN111806724B (en) * | 2020-06-22 | 2021-11-16 | 中国科学院西安光学精密机械研究所 | Satellite and space station mechanical arm expansion control judgment system and method |
| CN114520869A (en) * | 2020-11-20 | 2022-05-20 | 北京九天微星科技发展有限公司 | Method for realizing space self-timer |
| WO2022171588A1 (en) * | 2021-02-09 | 2022-08-18 | Deployables Cubed GmbH | Boom system for a satellite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209213333U (en) | A kind of space can Automatic-expanding self-timer bracket | |
| CN109253358A (en) | A kind of space can Automatic-expanding self-timer bracket | |
| CN104677199B (en) | A kind of single driving folds rudder face synchronous expansion mechanism more | |
| CN112298610B (en) | Solar wing and sectional type secondary unfolding hinge thereof | |
| CN109659661A (en) | A kind of rope bar stretching type annular deployable antenna mechanism | |
| CN104765122A (en) | Telescopic truss type binary optical space camera and on-orbit work method thereof | |
| CN112768869A (en) | Flat antenna folding and unfolding unit and two-dimensional folding and unfolding antenna mechanism | |
| CN110816818B (en) | Light folding type multi-rotor-wing aircraft arm locking multiplexing undercarriage, use method and unmanned aerial vehicle | |
| CN111430876B (en) | Multi-superelastic hinge parabolic cylinder antenna deployable mechanism | |
| CN107768797A (en) | A kind of spaceborne solid face deployable antenna | |
| CN107768796B (en) | The deployable spaceborne parabola antenna of petal type | |
| CN108598662A (en) | A kind of dual-layer Parallel quadrangle annular expandable truss | |
| CN112319855A (en) | Spatial extensible prism unit for on-orbit assembly | |
| CN102442429B (en) | Uplock of retractable arrester hook | |
| CN106910976A (en) | Light-duty automatic Quick extension folded antenna bar | |
| CN102031850A (en) | Electric telescopic awning | |
| CN205366105U (en) | Centralized variable angle expandes locking mechanical system | |
| CN111224210B (en) | Large-scale cable pole truss type deployable antenna mechanism | |
| CN209212089U (en) | A kind of hovercar door latch apparatus | |
| CN116374155A (en) | Synchronous unfolding mechanism for aircraft wings | |
| CN109895987B (en) | Rudder folding device for ocean robot | |
| CN115406311B (en) | Grid rudder device | |
| CN206806487U (en) | Light-duty automatic Quick extension folded antenna bar | |
| JODOI et al. | A 100-meter-class plate space structure construction method using a deployable truss | |
| CN110492220B (en) | Extensible space large-scale telescopic truss unfolding mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |