CN205770212U - A kind of micro-nano satellite braking sail leaves the right or normal track device - Google Patents

Abstract

The utility model discloses a kind of micro-nano satellite braking sail to leave the right or normal track device, including sail storage device, sail expanding unit and tripper, sail expanding unit is centrosymmetric structure, including upper end cover, bottom end cover, flap central shaft, two ring flanges, two strip-like resilient masts, four support prisms, four pairs of pilot sleeves, four hold-down mechanisms and four spring leafs.After receiving surface instruction, tripper release sail expanding unit flap central shaft, the strip-like resilient mast being wound in flap central shaft drives the thin film sail being stored in sail locker room to launch by the elastic potential energy discharging self storage.This utility model utilizes expansion thin film sail to increase the method phase sectional area of satellite motion, increases the atmospheric drag perturbation effect to micro-nano satellite, thus promotes micro-nano star passively to leave the right or normal track.

Description

A kind of micro-nano satellite braking sail leaves the right or normal track device

Technical field

This utility model belongs to spacecraft and leaves the right or normal track field, is specifically related to a kind of micro-nano satellite braking sail and leaves the right or normal track device.

Background technology

Since the mankind launch its first man made earth satellite so far, space technology obtains great achievement and develops rapidly, but Meanwhile also result in the substantial amounts of space junk of longer-term persistence in the range of terrestrial space, and the sky that these quantity increase day by day Between fragment had influence on the proper space activity of the mankind.The mankind have carried out more than 5000 Spacecraft Launchs work altogether up to now Dynamic, there is more than 200 spacecraft or rocket carrier blast/crash in-orbit altogether, also create substantial amounts of space junk simultaneously. The most obvious example is the space that the former Soviet Union occurred for 2009 discards satellite Kosmos-2251 and American satellite Iridium-33 Collision accident.

The safety of spacecraft in-orbit in the existence serious threat of space junk, constrains the development of mankind's space technology.As What slows down the growth of space junk has become as the problem needing solution both at home and abroad badly.For current technology condition, reduce sky Between the only effective method of number of tiles be to make it reenter earth dense atmosphere to burn the technology that i.e. leaves the right or normal track.Inter-agency space is broken The sheet coordination committee (IADC) if also indicating that satellite can not become rail to graveyard track, just should after completing its task in 25 years or Can leave the right or normal track voluntarily in launching latter 30 years, enter dense atmosphere and burn.Therefore, the research spacecraft technology of leaving the right or normal track has very important Meaning.

Along with development and the demand of new and high technology, micro-nano satellite is little with its volume, low in energy consumption, the construction cycle is short, can form into columns Networking, completes the advantage of a lot of complicated space tasks, increasingly by domestic and international associated mechanisms and colleges and universities with lower cost Attention.Along with micro-nano satellite launches the increasing of quantity, the impact on spatial environments is the most more and more significant, if none of can The technology that leaves the right or normal track leaned on, the transmitting of following micro-nano satellite will be by certain restriction.Abroad in Recent Years many colleges and universities and institute The most actively throw oneself into micro-nano satellite to leave the right or normal track the research of technology, the most several modes of leaving the right or normal track include inflatable ball, electric power tether with And braking sail etc..

The braking sail technology of leaving the right or normal track is to form variously-shaped sail by stent thin film on satellite, thus increases satellite The normal section of the direction of motion is amassed, and improves atmospheric drag suffered in satellite flight course in-orbit, force satellite ahead of time from Rail enters dense atmosphere and burns.The braking sail that can vary in size according to satellite different quality development, general sail area is several squares Rice is to tens square metres.This device light weight, simple in construction, low cost, be particularly well-suited to quickly to respond, duty cycle short Low orbit micro-nano satellite.

Patrick is open reports a kind of braking sail device AEOLDOS being applicable to low orbit cube satellite (Advances in Space Research 54 (2014) 82 91), this device relies on the mechanical energy that system self is stored Driving intermediate rotary shaft rotates, thus is launched by braking sail.Braking sail area designed by this device is less, thus can lead to Crossing a rotating shaft to be launched by four masts, 4 Ge Fan locker rooms are separately positioned between four masts.System structure is simple, volume Little, light weight, it is adaptable to leaving the right or normal track of low orbit cube satellite.Improve constantly however as cube satellite orbital altitude, star Weight constantly increases, and the application of this device has some limitations.

Summary of the invention

The purpose of this utility model is to provide a kind of micro-nano satellite braking sail to leave the right or normal track device, can make the orbit altitude be 800km, the micro-nano satellite of quality 70kg left the right or normal track in 25 years, and solving micro-nano satellite cannot be in the stipulated time after completing task Inside leave the right or normal track thus become the problem that space junk affects the normal operation of other satellites.

The technical solution realizing this utility model purpose is: a kind of micro-nano satellite braking sail leaves the right or normal track device, its size TakeSpace, including from up to down set gradually sail storage device, sail expanding unit conciliate Locking device.

Described sail storage device includes sail locker room, thin film sail and journal stirrup, and sail locker room is rectangular structure, four sides Four dovetail grooves are opened respectively for memory films sail in face, and the most each trench bottom is equipped with two through holes, by one of thin film sail Angle is fixed in described through hole；Four sidewall bottom of sail locker room are equipped with downward journal stirrup, are used for and sail expanding unit Side is connected.

Described sail expanding unit is centrosymmetric structure, including upper end cover, bottom end cover, flap central shaft, two ring flanges, Two strip-like resilient masts, four support prisms, four pairs of pilot sleeves, four hold-down mechanisms and four spring leafs.

Four pairs of pilot sleeves are arranged on four angles of bottom end cover, and four support rib column symmetry are distributed in four of bottom end cover On side, two ends are connected with upper end cover and bottom end cover respectively, and next-door neighbour's pilot sleeve, support upper end cover and bottom end cover, upper end cover Bottom centre is provided with a ring flange；Bottom end cover top center is provided with another ring flange；Flap central shaft is arranged on ring flange Center, two ends are connected with two ring flanges respectively；Hold-down mechanism is arranged between adjacent two couple pilot sleeve, respectively with upper end Lid and bottom end cover are hinged；Spring leaf one end is fixed on support prism, and the other end is fixed on hold-down mechanism；Two strip-like resilient Mast is wrapped on flap central shaft.

Described bottom end cover center is sequentially provided with bearing groove, ring flange central shaft through hole and flange surface groove；Bearing groove in order to Assembling rolling bearing make upper and lower end cap be connected with ring flange respectively, ring flange central shaft through hole in order to make ring flange pass, flange Card groove is in order to assembly flange dish, and upper end cover is identical with bottom end cover structure.

Described flap central shaft includes four cylinders arranged in petal-shaped, and leaves gap between cylinder, two Strip-like resilient mast passes and two cylinders of envelope from above-mentioned gap respectively, and said two cylinder is positioned at same diagonal On, then four free ends of strip-like resilient mast are wrapped on flap central shaft, cylinder top and bottom respectively with up and down Two ring flanges are connected, and cylindrical sides centre position has groove and screwed hole, is worn between cylinder by screw in compression The strip-like resilient mast crossed.

Described strip-like resilient mast is formed by stacking by two tape springs, and two tape spring cambered surfaces are relative, cross section radian It is 70 ° 90 °, free end has aperture, be connected with the thin film sail in sail locker room by nylon rope.

Described ring flange includes card, disk center's axle and four flaky strong magnets, and disk center's axle is positioned at card top center, dish Face is distributed uniformly and circumferentially four flaky strong magnets, and disk center's axle is respectively connected with by bearing and upper and lower end cap, and its end face Stretch out bottom end cover to be connected with tripper.

Described bottom end cover has sensor through hole at flaky strong magnet correspondence position, and sensor through hole is used for assembling hall sensing Device.

Described hold-down mechanism includes that cylinder, gripper shoe and support shaft, gripper shoe side have cylinder mounting groove, and opposite side is opened Support shaft mounting groove, the support shaft mounting groove degree of depth is had to exceed the center of gripper shoe；Cylinder is arranged in cylinder mounting groove, support shaft It is arranged in support shaft mounting groove, and is positioned at the end of gripper shoe；The cental axial position of gripper shoe has upper and lower two through holes, uses In hinged with upper end cover, bottom end cover；Gripper shoe outer wall is curved, outwardly, and cylinder compresses and is wrapped on flap central shaft Strip-like resilient mast, spring card is in support shaft.

Every pair of pilot sleeve is made up of two single pilot sleeves, leaves space, strip-like resilient between two single pilot sleeves Four free ends of mast, are each passed through the space of above-mentioned pilot sleeve.

Compared with prior art, its remarkable advantage is this utility model:

(1) volume is little, light weight, complies fully with micro-nano satellite miniaturization, lightweight requirements, reduces other system quality With the restriction in space, improve the functional density of micro-nano satellite.

(2) applied widely, when satellite orbital altitude is 800km, this utility model can be to quality within 70kg All satellites effectively leave the right or normal track；When orbit altitude is less than 800km, this utility model can also be used for quality and is more than the micro-of 70kg Nano satellite.

(3 without outside energy supply, only relies on the elastic strain energy self stored and launches braking sail, reduces ground and control difficulty, Reduce micro-nano satellite manufacturing cost.

(4) this utility model is a set of single system, and function modoularization, and the life-span that will not increase other system is wanted Ask, also will not be affected the most normally by other system, while not disturbing other system, also ensure the reliable of system that leave the right or normal track Property.

(5) ' () ' type elasticity mast that elastic mast utilizes the tape spring of two monolayer opening column shell structures to be combined into Bar, when it can utilize gathering, the elastic strain energy of accumulation realizes Automatic-expanding without other power set；After deployment, Stiffness by itself can be relied on again to provide and to support the self-lock force needed for thin film sail and the ability of external force resistance interference, without additionally adding Locking device.

(6) hold-down mechanism compresses the not deployed part of residue during the expansion of mast, can effectively prevent mast not Deploying portion is lost a part of mechanical energy and blocks the situation appearance died from sail expanding unit because of expansion because of expansion.

(7) thin film sail uses the Kapton aluminized, and its thickness is thin, and mechanical property is good and is easy to fold pressure Contracting, the elemental oxygen being simultaneously highly resistant in spatial environments corrosion and solar radiation.

(8) simple in construction, good reliability, processing cost is low, practical, is highly suitable for quickly responding, duty cycle Short cube satellite.

Accompanying drawing explanation

Fig. 1 is that this utility model micro-nano satellite braking sail leaves the right or normal track the strip-like resilient mast structure schematic diagram of device.

Fig. 2 be this utility model micro-nano satellite braking sail leave the right or normal track device strip-like resilient mast draw in structural representation.

Fig. 3 is that this utility model micro-nano satellite braking sail leaves the right or normal track the partial schematic diagram of strip-like resilient mast of device.

Fig. 4 is that this utility model micro-nano satellite braking sail leaves the right or normal track the structural representation of upper lower flange of device.

Fig. 5 is that this utility model micro-nano satellite braking sail leaves the right or normal track the structural representation of hold-down mechanism of device.

Fig. 6 is that this utility model micro-nano satellite braking sail leaves the right or normal track the bottom end cover structural representation of device.

Fig. 7 is that this utility model micro-nano satellite braking sail leaves the right or normal track the internal structure schematic diagram of sail expanding unit of device.

Fig. 8 is that this utility model micro-nano satellite braking sail leaves the right or normal track the external structure schematic diagram of sail expanding unit of device.

Fig. 9 is that this utility model micro-nano satellite braking sail leaves the right or normal track the structural representation of sail locker room of device.

Figure 10 is that this utility model micro-nano satellite braking sail leaves the right or normal track the overall structure schematic diagram of device.

Figure 11 be this utility model micro-nano satellite braking sail leave the right or normal track device sail launch after structural representation.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described in further detail.

In conjunction with Figure 10, a kind of micro-nano satellite braking sail leaves the right or normal track device, and its size takies's Space, it is possible to apply to cube satellite, takies a cube space of star 1.5U.Including the sail storage dress from up to down set gradually Put, sail expanding unit 32 and tripper 33.

In conjunction with Fig. 9 and Figure 11, described sail storage device is used for storing thin film sail, including sail locker room 29, thin film sail 34 and Journal stirrup 31, sail locker room 29 is rectangular structure, opens four dovetail grooves 30 respectively four sides for memory films sail 34, with Time each trench bottom be equipped with two through holes, an angle of thin film sail 34 is fixed in described through hole；The four of sail locker room 29 Individual sidewall bottom is equipped with downward journal stirrup 31, is connected for the side with upper end cover 28.

In conjunction with Fig. 7 and Fig. 8, sail expanding unit 32 is centrosymmetric structure, including in upper end cover 28, bottom end cover 24, flap 2, four support prisms of 3, two strip-like resilient masts of 6, two ring flanges of mandrel, 26, four compacting machines of 25, four pairs of pilot sleeves Structure 16 and four spring leafs 27.

Four pairs of pilot sleeves 26 are arranged on four angles of bottom end cover 24, and four support prisms 25 are symmetrically distributed in bottom end cover On four sides of 24, two ends are connected with upper end cover 28 and bottom end cover 24 respectively, and next-door neighbour's pilot sleeve 26, support upper end cover 28 With bottom end cover 24, upper end cover 28 bottom centre is provided with a ring flange 3；Bottom end cover 24 top center is provided with another ring flange 3. Flap central shaft 6 is arranged on ring flange 3 center, and two ends are connected with two ring flanges 3 respectively.Hold-down mechanism 16 is arranged on adjacent Between two pairs of pilot sleeves 26, hinged with upper end cover 28 and bottom end cover 24 respectively.Spring leaf 27 one end is fixed on support prism 25 On, the other end is fixed on hold-down mechanism 16.Two strip-like resilient masts 2 are wrapped on flap central shaft 6.

In conjunction with Fig. 1 and Fig. 2, flap central shaft 6 includes four cylinders 1 arranged in petal-shaped, simultaneously between cylinder 1 Leaving gap, two strip-like resilient masts 2 pass and two cylinders 1 of envelope from above-mentioned gap respectively, said two cylinder 1 It is positioned on same diagonal, then four free ends of strip-like resilient mast 2 is wrapped on flap central shaft 6, cylinder 1 top Having screwed hole 4 with bottom to be connected with upper and lower two ring flanges 3, cylindrical sides centre position has groove and screwed hole 5, the strip-like resilient mast 2 passed between cylinder 1 by screw in compression.

In conjunction with Fig. 4, ring flange 3 includes card 9,12, four flaky strong magnets 13 of disk center's axle, and disk center's axle 12 is positioned at card 9 top center, card 9 is distributed uniformly and circumferentially four flaky strong magnets 13, and disk center's axle 12 top is hexagon, disk center Axle 12 is connected with upper and lower end cap by bearing, hexagon end face external part lid.It is positioned at six limits of the ring flange central shaft 12 of bottom Shape end face is connected with tripper 33.

Every pair of pilot sleeve 26 is made up of two single pilot sleeves, leaves space, banding bullet between two single pilot sleeves Four free ends of property mast 2, are each passed through the space of above-mentioned pilot sleeve 26.Pilot sleeve 26 is used for guiding strip-like resilient mast Bar 2 outwards launches, and limits its expansion direction.

In conjunction with Fig. 3, strip-like resilient mast 2 is formed by stacking by two tape springs 7, and two tape spring 7 cambered surfaces are relative, its Middle tape spring 7 is to be processed by the beallon band of wide 19mm thickness 0.1mm, and cross section radian is 70 ° 90 °, on free end Have aperture 8, be connected with the thin film sail in sail locker room 29 by nylon rope.

In conjunction with Fig. 5, hold-down mechanism 16 is used for compressing the not deployed part of strip-like resilient mast 2, prevents it during launching Expanding, card is died from sail expanding unit 32, and including cylinder 14, gripper shoe 15 and support shaft 17, gripper shoe 15 side has cylinder Mounting groove, opposite side has support shaft mounting groove, and the support shaft mounting groove degree of depth exceedes the center of gripper shoe 15.Cylinder 14 is arranged on In cylinder mounting groove, support shaft 17 is arranged in support shaft mounting groove, and is positioned at the end of gripper shoe 15.The center of gripper shoe 15 Shaft position has upper and lower two through holes 10, for hinged with upper end cover 28, bottom end cover 24.Gripper shoe 15 outer wall is curved, outwards Protruding, cylinder 14 compresses the strip-like resilient mast 2 being wrapped on flap central shaft 6, and spring leaf 27 is stuck in support shaft 17.

In conjunction with Fig. 6, described bottom end cover 24 center is sequentially provided with bearing groove 20, ring flange central shaft through hole 19 and flange surface Groove 23, bottom end cover 24 side is uniformly distributed four support prism grooves 21；Bearing groove 20 makes upper and lower end cap in order to assemble rolling bearing Being connected with ring flange 3 respectively, ring flange central shaft through hole 19 is in order to make ring flange pass, and flange surface groove 23 is in order to assembly flange Dish 3, supports prism groove 21 in order to assemble support prism 25；Upper end cover 28 is identical with bottom end cover 24 structure.

Bottom end cover 24 has sensor through hole 18 at flaky strong magnet 13 correspondence position, and sensor through hole is used for installing Hall and passes Sensor.

Tripper 33 is positioned at micro-nano satellite and leaves the right or normal track bottom of device, and tripper of the present utility model uses American TI NI boat Disk center axle 12 is entered the Frangibolt(http of it company: //www.tiniaerospace.com/products.html) Row locking.

After receiving expansion signal, tripper 33 energising discharges disk center's axle 12, and strip-like resilient mast 2 is by self The elastic strain energy of storage drives thin film sail 34 to launch from sail locker room 29, and during launching, hold down gag compresses banding Elastic mast 2 remains furlling part, in case strip-like resilient mast 2 is died from sail expanding unit 32 to circumferencial direction expansion card.

Job description

A kind of micro-nano satellite braking sail leaves the right or normal track device, is fixed on the bottom of micro-nano satellite heading, before satellite launch, two Individual strip-like resilient mast 2 draws in sail expanding unit 32, and the end of strip-like resilient mast 2 hitches and is stored in sail locker room 29 One jiao of thin film sail 34, tripper 33 is by locked for disk center's axle 12 of sail expanding unit 32 simultaneously.Appointing in-orbit of micro-nano satellite After being engaged in, receive launch braking sail leave the right or normal track device instruction after, tripper 33 discharges the disk center of sail expanding unit 32 Axle 12, the elastic strain stretchy of strip-like resilient mast 2 release storage is stored in four thin film sails 34 of sail locker room 29 respectively Launching to four direction, during extension satellite flight, the sectional area on velocity attitude, increases the air suffered by micro-nano satellite Resistance, makes satellite be rapidly separated track.

Embodiment: as a example by three unit cube stars

In conjunction with Fig. 1 ~ Figure 11, a kind of micro-nano satellite braking sail leaves the right or normal track device, for leaving the right or normal track of cube star, prevents it from completing to appoint Space junk is become after business.This micro-nano satellite braking sail device that leaves the right or normal track is installed on bottom cube star, takies a cube sky of star 1.5U Between.Including the sail storage device, sail expanding unit 32 and the tripper 33 that from up to down set gradually.

Described sail storage device includes that sail locker room 29, thin film sail 34 and journal stirrup 31, sail locker room 29 are rectangular structure, Opening four dovetail grooves 30 respectively four sides for memory films sail 34, the most each trench bottom is equipped with two through holes, will One angle of thin film sail 34 is fixed in described through hole；Four sidewall bottom of sail locker room 29 are equipped with downward journal stirrup 31, It is connected for the side with upper end cover 28.

Sail expanding unit 32 is centrosymmetric structure, including upper end cover 28, bottom end cover 24,6, two flanges of flap central shaft 2, four support prisms of 3, two strip-like resilient masts of dish, 26, four hold-down mechanisms 16 of 25, four pairs of pilot sleeves and four springs Sheet 27.

Four pairs of pilot sleeves 26 are arranged on four angles of bottom end cover 24, and four support prisms 25 are symmetrically distributed in bottom end cover On four sides of 24, two ends are connected with upper end cover 28 and bottom end cover 24 respectively, and next-door neighbour's pilot sleeve 26, support upper end cover 28 With bottom end cover 24, upper end cover 28 bottom centre is provided with a ring flange 3；Bottom end cover 24 top center is provided with another ring flange 3. Flap central shaft 6 is arranged on ring flange 3 center, and two ends are connected with two ring flanges 3 respectively.Hold-down mechanism 16 is arranged on adjacent Between two pairs of pilot sleeves 26, hinged with upper end cover 28 and bottom end cover 24 respectively.Spring leaf 27 one end is fixed on support prism 25 On, the other end is fixed on hold-down mechanism 16.Two strip-like resilient masts 2 are wrapped on flap central shaft 6.

Flap central shaft 6 includes four cylinders 1 arranged in petal-shaped, leaves gap between cylinder 1 simultaneously, two Strip-like resilient mast 2 passes and two cylinders 1 of envelope from above-mentioned gap respectively, and said two cylinder 1 is positioned at same pair of horns On line, then being wrapped on flap central shaft 6 by four free ends of strip-like resilient mast 2, cylinder 1 top and bottom are opened respectively Having screwed hole 4 to be connected with upper and lower two ring flanges 3, cylindrical sides centre position has groove and screwed hole 5, by screw pressure The tight strip-like resilient mast 2 passed between cylinder 1.

Ring flange 3 includes card 9,12, four flaky strong magnets 13 of disk center's axle, and disk center's axle 12 is positioned in card 9 top The heart, card 9 is distributed uniformly and circumferentially four flaky strong magnets 13, and disk center's axle 12 top is hexagon, and disk center's axle 12 leads to Cross bearing to be connected with upper and lower end cap, top hexagon end face external part lid.It is positioned at the hexagon of the ring flange central shaft 12 of bottom End face is connected with tripper 33.

Every pair of pilot sleeve 26 is made up of two single pilot sleeves, leaves space, banding bullet between two single pilot sleeves Four free ends of property mast 2, are each passed through the space of above-mentioned pilot sleeve 26.

Strip-like resilient mast 2 is formed by stacking by two tape springs 7, and two tape spring 7 cambered surfaces are relative, wherein banding bullet Spring 7 is to be processed by the beallon band of wide 19mm thickness 0.1mm, and cross section radian is 90 °, free end has aperture 8, passes through Nylon rope is connected with the thin film sail in sail locker room 29.

Hold-down mechanism 16 includes that cylinder 14, gripper shoe 15 and support shaft 17, gripper shoe 15 side have cylinder mounting groove, separately Side has support shaft mounting groove, and the support shaft mounting groove degree of depth exceedes the center of gripper shoe 15.Cylinder 14 is arranged on cylinder and installs In groove, support shaft 17 is arranged in support shaft mounting groove, and is positioned at the end of gripper shoe 15.The cental axial position of gripper shoe 15 is opened There are upper and lower two through holes 10, for hinged with upper end cover 28, bottom end cover 24.Gripper shoe 15 outer wall is curved, outwardly, cylinder 14 compress the strip-like resilient mast 2 being wrapped on flap central shaft 6, and spring leaf 27 is stuck in support shaft 17.

Described bottom end cover 24 center is sequentially provided with bearing groove 20, ring flange central shaft through hole 19 and flange surface groove 23, under End cap 24 side is uniformly distributed four support prism grooves 21；Bearing groove 20 in order to assemble rolling bearing make upper and lower end cap respectively with method Blue dish 3 is connected, and ring flange central shaft through hole 19 is in order to make ring flange pass, and flange surface groove 23, in order to assembly flange dish 3, supports Prism groove 21 is in order to assemble support prism 25；Upper end cover 28 is identical with bottom end cover 24 structure.

Bottom end cover 24 has sensor through hole 18 at flaky strong magnet 13 correspondence position, and sensor through hole is used for installing Hall and passes Sensor.

Tripper 33 is positioned at micro-nano satellite and leaves the right or normal track bottom of device, and tripper of the present utility model uses American TI NI boat Disk center axle 12 is entered the Frangibolt(http of it company: //www.tiniaerospace.com/products.html) Row locking.

In sum, the micro-nano satellite of the present utility model braking sail device volume that leaves the right or normal track is little, and light weight complies fully with micro-nano Satellite to the equipment miniaturization that leaves the right or normal track, lightweight requirements, its modularity, independent does not interferes with the running of other system yet, and The life-span of other subsystems, requirements at the higher level were not proposed.Micro-nano satellite of the present utility model braking sail leave the right or normal track apparatus structure letter Single, processing cost is low, and integrity is good, and reliability is high, and micro-nano satellite the most of the present utility model braking sail leaves the right or normal track device developed surface Long-pending big, applied widely, the micro-nano being in Low Earth Orbit being applicable to low cost, the lead time is short, functional density is big is defended Star.

Claims (9)

1. micro-nano satellite braking sail leaves the right or normal track device, it is characterised in that: its size takiesSky Between, including the sail storage device, sail expanding unit (32) and the tripper (33) that from up to down set gradually；

Described sail storage device includes sail locker room (29), thin film sail (34) and journal stirrup (31), and sail locker room (29) are cuboid Structure, opens four dovetail grooves (30) respectively and is used for memory films sail (34) four sides, and the most each trench bottom is equipped with two Individual through hole, is fixed on an angle of thin film sail (34) in described through hole；Four sidewall bottom of sail locker room (29) are equipped with Downward journal stirrup (31), is connected for the side with sail expanding unit (32).

Micro-nano satellite the most according to claim 1 braking sail leaves the right or normal track device, it is characterised in that: described sail expanding unit (32) It is centrosymmetric structure, including upper end cover (28), bottom end cover (24), flap central shaft (6), two ring flanges (3), two bandings Elastic mast (2), four support prisms (25), four pairs of pilot sleeves (26), four hold-down mechanisms (16) and four spring leafs (27)；

Four pairs of pilot sleeves (26) are arranged on four angles of bottom end cover (24), and four support prisms (25) are symmetrically distributed in lower end On four sides of lid (24), two ends are connected with upper end cover (28) and bottom end cover (24) respectively, and next-door neighbour's pilot sleeve (26), Support upper end cover (28) and bottom end cover (24), upper end cover (28) bottom centre is provided with a ring flange (3)；In bottom end cover (24) top The heart is provided with another ring flange (3)；Flap central shaft (6) is arranged on ring flange (3) center, two ends respectively with two ring flanges (3) connect；Hold-down mechanism (16) is arranged between adjacent two couple pilot sleeve (26), respectively with upper end cover (28) and bottom end cover (24) hinged；Spring leaf (27) one end is fixed in support prism (25), and the other end is fixed on hold-down mechanism (16)；Two bands Shape elasticity mast (2) is wrapped on flap central shaft (6).

Micro-nano satellite the most according to claim 2 braking sail leaves the right or normal track device, it is characterised in that: described bottom end cover (24) center It is sequentially provided with bearing groove (20), ring flange central shaft through hole (19) and flange surface groove (23)；Bearing groove (20) is in order to assemble rolling Dynamic bearing makes upper and lower end cap be connected with ring flange (3) respectively, ring flange central shaft through hole (19) in order to make ring flange pass, flange Card groove (23) is in order to assembly flange dish (3)；Upper end cover (28) is identical with bottom end cover (24) structure.

Micro-nano satellite the most according to claim 2 braking sail leaves the right or normal track device, it is characterised in that: described flap central shaft (6) Including four cylinders (1) arranged in petal-shaped, and leave gap between cylinder (1), two strip-like resilient masts (2) point Not from above-mentioned gap through also two cylinders (1) of envelope, said two cylinder (1) is positioned on same diagonal, then will band Four free ends of shape elasticity mast (2) are wrapped on flap central shaft (6), cylinder (1) top and bottom respectively with up and down Two ring flanges (3) are connected, and cylindrical sides centre position has groove and screwed hole (5), by screw in compression from cylinder (1) the strip-like resilient mast (2) passed between.

Micro-nano satellite the most according to claim 4 braking sail leaves the right or normal track device, it is characterised in that: described strip-like resilient mast (2) being formed by stacking by two tape springs (7), two tape spring (7) cambered surfaces are relative, and cross section radian is 70 ° 90 °, freely Have aperture (8) on end, be connected with the thin film sail (34) in sail locker room (29) by nylon rope.

Micro-nano satellite the most according to claim 2 braking sail leaves the right or normal track device, it is characterised in that: described ring flange (3) includes Card (9), disk center's axle (12) and four flaky strong magnets (13), disk center's axle (12) is positioned at card (9) top center, card (9) being distributed uniformly and circumferentially four flaky strong magnets (13), disk center's axle (12) is respectively connected with by bearing and upper and lower end cap, And its end face stretches out bottom end cover (24) and is connected with tripper (33).

Micro-nano satellite the most according to claim 6 braking sail leaves the right or normal track device, it is characterised in that: described bottom end cover (24) is at sheet Shape strong magnetic (13) correspondence position has sensor through hole (18), and sensor through hole (18) is used for assembling Hall element.

Micro-nano satellite the most according to claim 2 braking sail leaves the right or normal track device, it is characterised in that: described hold-down mechanism (16) wraps Including cylinder (14), gripper shoe (15) and support shaft (17), gripper shoe (15) side has cylinder mounting groove, and opposite side has support Axle mounting groove, the support shaft mounting groove degree of depth exceedes the center of gripper shoe (15)；Cylinder (14) is arranged in cylinder mounting groove, supports Axle (17) is arranged in support shaft mounting groove, and is positioned at the end of gripper shoe (15)；The cental axial position of gripper shoe (15) has Upper and lower two through holes (10), for hinged with upper end cover (28), bottom end cover (24)；Gripper shoe (15) outer wall is curved, convex Going out, cylinder (14) compresses the strip-like resilient mast (2) being wrapped on flap central shaft (6), and spring leaf (27) is stuck in support shaft (17) on.

Micro-nano satellite the most according to claim 2 braking sail leaves the right or normal track device, it is characterised in that: the every pair of pilot sleeve (26) by Two single pilot sleeves are constituted, and leave space between two single pilot sleeves, four free ends of strip-like resilient mast (2), point Chuan Guo the space of above-mentioned pilot sleeve (26).