CN105564668A - Coiling type telescopic arm capable of achieving segmental, sequential and progressive expanding - Google Patents
Coiling type telescopic arm capable of achieving segmental, sequential and progressive expanding Download PDFInfo
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- CN105564668A CN105564668A CN201610045736.XA CN201610045736A CN105564668A CN 105564668 A CN105564668 A CN 105564668A CN 201610045736 A CN201610045736 A CN 201610045736A CN 105564668 A CN105564668 A CN 105564668A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/222—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state
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Abstract
The invention discloses a coiling type telescopic arm capable of achieving segmental, sequential and progressive expanding. The coiling type telescopic arm comprises a locking and releasing mechanism, a telescopic arm truss, a collection barrel and a mechanical and electrical transmission mechanism, and the telescopic arm truss, the collection barrel and the mechanical and electrical transmission mechanism are connected in sequence. The telescopic arm truss is fixedly mounted in the collection barrel and arranged to be capable of being coiled and drawn back. The collection barrel is arranged to be capable of storing the telescopic arm truss which is coiled and drawn back. The locking and releasing mechanism is arranged around the barrel wall of the collection barrel and used for pressing and locking the expanded telescopic arm truss which is drawn back and expanding and releasing the telescopic arm truss in the rebounding and expanding process. The mechanical and electrical transmission mechanism is used for driving the telescopic arm truss and the locking and releasing mechanism. The telescopic arm is simple in structure, small in expanding impact and reliable, the top end of the arm is kept directional, the overall mass is low, rigidity is large, and the telescopic arm can be used for space-expandable antennas, solar cell arrays, solar sails, space platforms, detecting arm mechanisms and the like.
Description
Technical field
The present invention relates to a kind of high precision extending arm, particularly relate to the coiling extending arm of a kind of segmentation asymptotic expansion successively, can be used for space Deployable antenna, solar cell array, solar sail, space platform, feeler arm mechanism etc.
Background technology
Space mast is a most basic space-like deployable structure, its research the earliest, the most deep, most system, technology is also the most ripe, most widely used general, but Novel stretch arm is still the important directions that various countries constantly explore and research and develop.Space mast mainly in one-dimensional linear system, is elongated tubular, bar or framework (truss), can be widely used in the development mechanism of large-scale solar wing, large-scale antenna.As main expansion carrying primary structure member, space mast plays an important role in total system.
The expansion mode of current coiling extending arm can be summarized as 3 kinds: freely launch, drag-line launches and nut launches.The extending arm freely launched utilizes the folding strain energy of collection, and without electric machine control development mechanism, release strain energy makes extending arm freely stretch with inverse winding direction.The extending arm simple structure freely launched, collection height can reach 2% of length of run, and launch transition phase and control without constraint, rigidity is very low, and elliptical gear is comparatively large, is difficult to control.The extending arm that drag-line launches utilizes high tensile flexible rope to control stretching routine, rope one end is fixed on, other end connecting base plate motor or retarder, under driven by motor, rope is progressively released, and the extending arm structure that drag-line launches is simple, quality very little but in expansion process extending arm ratio of rigidity poor, extending arm top rotates around the line of centers of extending arm, this being rotated on some spacecraft does not allow, and extending arm can only realize in space once stretching, and can not automatically draw in.The extending arm that nut launches is formed primarily of parts such as collection cylinder, rotatable chassis, guide rail, nut actuating device, motor and drivings device, the extending arm that nut launches is in expansion process and after launching, extending arm all has higher-strength, in expansion process, move without spin in extending arm top, extending arm can realize repeatedly stretching, but quality is comparatively large, configuration and mechanism's complexity.
Therefore, those skilled in the art is devoted to develop a kind of simple structure, quality is light, stretch steady, that expansion is reliable, rigidity is high expansion arm.
Summary of the invention
Because the above-mentioned defect of prior art, to be solved by this invention be the Low rigidity, the elliptical gear that exist in traditional extending arm large, be difficult to control, can not from drawing in, the large and complex structure and other problems of quality.
For achieving the above object, the invention provides the coiling extending arm of a kind of segmentation asymptotic expansion successively, comprising: locking with releasing mechanism and the extending arm truss be connected successively, collect cylinder and electromechanical transmission mechanism;
Wherein, extending arm truss is fixedly installed in collection cylinder, and extending arm truss is set to coil gathering; Collection cylinder is set to can the extending arm truss of memory disc under rounding state; Locking and releasing mechanism be arranged at collect cylinder barrel around, expansion when compression during for realizing extending arm truss rounding state locks and the resilience of extending arm truss launches discharges; Electromechanical transmission mechanism is for driving extending arm truss and locking and releasing mechanism.
Preferably, electromechanical transmission mechanism is positioned at the bottom of extending arm truss, and is arranged at the inside of collection cylinder.
Preferably, extending arm truss comprises extending arm base plate and multiple triangular truss unit, and extending arm base plate to be arranged in collection cylinder and to be connected with collection cylinder, and multiple triangular truss unit to set gradually and connected along the longitudinal direction of extending arm truss; Each triangular truss unit comprises the first triangle frame and multiple second triangle frame; In each triangular truss unit, between the first triangle frame and the second triangle frame, between two, between the second triangle frame, be all connected with extending arm vertical pole; The triangular truss unit of the bottom of extending arm truss is connected with extending arm base plate by extending arm vertical pole; Extending arm vertical pole has elasticity, coiling can draw in, thus extending arm truss can be coiled draw in collection cylinder in spring-like.
Further preferably, in the first triangle-frame, three isometric extending arm cross bars connect into triangle frame by meropodium with lock function point; In second triangle-frame, three isometric extending arm cross bars connect into triangle frame by pipe nipple not with lock function point; The extending arm vertical pole be connected with the first triangle-frame is inserted into meropodium point with lock function and is fixedly connected with meropodium with lock function point by injecting epoxide-resin glue; The extending arm vertical pole be connected with the second triangle-frame is inserted into pipe nipple point not with lock function and is fixedly connected with pipe nipple not with lock function point by injecting epoxide-resin glue; The extending arm vertical pole be connected with extending arm base plate is inserted into bottom node and is fixedly connected with bottom node by injecting epoxide-resin glue, and bottom node is fixedly connected on extending arm base plate.
Further preferably, collect cylinder and comprise the first column, the second column, the first cushion cap bridge piece, the second cushion cap bridge piece, the 3rd cushion cap bridge piece, curved thin plate and collection tube end plate; Wherein, three first columns and three spaced formation regular hexagons of second column are arranged, during regular hexagon is arranged, three first columns form positive triangle and to arrange and three second columns form positive triangle arranges; All curved thin plate is connected with between the first adjacent column and the second column; Every root first column is connected with the 3rd cushion cap bridge piece first cushion cap bridge piece identical with three along the longitudinal direction in turn, every root second column is connected with the 3rd cushion cap bridge piece, the first cushion cap bridge piece that the second cushion cap bridge piece is identical with three along the longitudinal direction in turn, 3rd cushion cap bridge piece is connected with collection tube end plate, and the second cushion cap bridge piece is connected with extending arm base plate.
Further preferably, the curved thin plate between the first adjacent column and the second column is disposed with three along the longitudinal direction of collection cylinder, and curved thin plate is connected with the first column or the second column by the first cushion cap bridge piece.
Further preferably, locking and releasing mechanism comprise blocking device and multiple length arc cross bar not etc., blocking device is connected with the curved thin plate on the second column of collection cylinder, blocking device comprises flap, L-type attaching parts, positioning key and bearing pin, bearing pin is inserted in flap, the two ends of bearing pin are connected to L-type attaching parts, and are fixedly connected with L-type attaching parts by inserting positioning key.
Further preferably, electromechanical transmission mechanism comprises DC servo motor, retarder, round turntable, rotating disk blade, square vertical pole, the bottom of DC servo motor is fixedly connected with collection tube end plate, the top of DC servo motor is connected with round turntable, round turntable is provided with rotating disk blade, one end of rotating disk blade is connected with round turntable, and the other end of rotating disk blade is connected with square vertical pole, square vertical pole is provided with the arc cross bar that multiple length does not wait; DC servo motor is connected with retarder, rotates for driving round turntable.
Further preferably, the arc cross bar that multiple length does not wait comprises short arc cross bar, middle long arc shape cross bar and the long arc shape cross bar that length increases successively, and short arc cross bar, middle long arc shape cross bar and long arc shape cross bar are along the longitudinal direction of square vertical pole successively in laterally inserted square vertical pole.
Further preferably, when extending arm truss is in rounding state, meropodium point in extending arm truss just overlaps with one end of blocking device, and the other end of blocking device forms interlocking state on arc cross bar, makes extending arm truss sections draw in collection cylinder; When DC servo motor drives round turntable to rotate, rotating disk blade, square vertical pole and arc cross bar rotate simultaneously, blocking device and arc cross bar are unlocked, and discharges meropodium point, thus extending arm truss can discharge expansion; Due to multiple arc cross bar length not etc., thus along square vertical pole longitudinal direction from top to bottom arc cross bar pass completely through blocking device and time of unlocking different, make extending arm truss segmentation can discharge expansion progressively successively.
Particularly, when energized, DC servo motor connection reducer drives round turntable to rotate, rotating disk blade this moment, square vertical pole and arc cross bar rotate all simultaneously, because the length of arc cross bar is inconsistent, along square vertical pole longitudinal direction from top to bottom arc cross bar to pass completely through time of blocking device different: above short arc cross bar first through blocking device, then be that the arc cross bar of the moderate-length of centre is through blocking device, what eventually pass through is the longest arc cross bar below, because arc cross bar to rotate but to pass completely through time of blocking device inconsistent simultaneously, material is thus formed the time difference.First arc cross bar (such as short arc cross bar) is through after blocking device, meropodium point in first triangle crossbearer unit from the top of extending arm truss is released blocking device, thus the multistage extending arm vertical pole in first triangle crossbearer unit is released.Second arc cross bar (such as moderate-length arc cross bar) is through after blocking device, and the meropodium point in second triangular truss unit is released blocking device, thus in second triangular truss unit multistage extending arm vertical pole be released.Finally discharge the meropodium point bottom extending arm truss in nethermost triangular truss unit and extending arm vertical pole.So extending arm of the present invention utilizes the arc cross bar on square vertical pole and the meropodium point on extending arm truss to interact on the locking apparatus the gathering and release that realize extending arm truss.
The material behavior that the coiling extending arm of segmentation of the present invention asymptotic expansion successively takes full advantage of the construction features of extending arm node, extending arm vertical pole is suitable for large deformation coiling and resilience makes space mast segmentation asymptotic expansion successively, thus implementation structure is simple, less and reliable, arm top maintenance orientation is impacted in expansion, and total quality is light, rigidity is large.Extending arm of the present invention can be used for space Deployable antenna, solar cell array, solar sail, space platform, feeler arm mechanism etc.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the axis side view of the segmentation coiling extending arm of asymptotic expansion successively of a preferred embodiment of the present invention;
Fig. 2 is the axis side view of the first triangle frame in the extending arm truss of a preferred embodiment of the present invention;
Fig. 3 is the axis side view of the second triangle frame in the extending arm truss of a preferred embodiment of the present invention;
Fig. 4 is the axis side view that the bottom node of the extending arm truss of a preferred embodiment of the present invention is connected with extending arm vertical pole and extending arm base plate;
Fig. 5 is the axis side view of the collection cylinder of a preferred embodiment of the present invention;
Fig. 6 is the axis side view of the blocking device of a preferred embodiment of the present invention;
Fig. 7 is the axis side view of the electromechanical transmission mechanism of a preferred embodiment of the present invention.
Detailed description of the invention
Fig. 1-Fig. 7 shows the preferred detailed description of the invention of one of the segmentation provided by the present invention novel coiling extending arm of asymptotic expansion successively.
As shown in Figure 1, the coiling extending arm of the asymptotic expansion successively of the segmentation in this detailed description of the invention comprise locking with releasing mechanism 102 and the extending arm truss 101 be connected successively, collect cylinder 103 and electromechanical transmission mechanism 104.Wherein, the bottom of extending arm truss 101 is fixedly installed in collection cylinder 103, and extending arm truss 101 is set to coil gathering.Collection cylinder 103 is set to can the extending arm truss 101 of memory disc under rounding state; Locking and releasing mechanism 102 be arranged at collect cylinder 103 barrel around, expansion when compression during for realizing extending arm truss 101 rounding state locks and extending arm truss 101 resilience launches discharges.Electromechanical transmission mechanism 104 is positioned at the bottom of extending arm truss 101, and is arranged at the inside of collection cylinder 103, for driving extending arm truss 101 and locking and releasing mechanism 102.
In the present embodiment, as in Figure 2-4, extending arm truss 101 comprises extending arm base plate 206 and multiple triangular truss unit, and extending arm base plate 206 to be arranged in collection cylinder 103 and to be connected with collection cylinder 103, and multiple triangular truss unit sets gradually along the longitudinal direction of extending arm truss 101 and is connected; Each triangular truss unit comprises the first triangle frame and multiple second triangle frame; In each triangular truss unit, between the first triangle frame and the second triangle frame, between two, between the second triangle frame, be all connected with extending arm vertical pole 203; The triangular truss unit of the bottom of extending arm truss 101 is connected with extending arm base plate 206 by extending arm vertical pole 203.Extending arm vertical pole 203 has elasticity, coiling can draw in, thus extending arm truss 101 can be coiled draw in collection cylinder 103 in spring-like.
Wherein, in the first triangle-frame, three isometric extending arm cross bars 201 connect into triangle frame by meropodium with lock function point 202; In second triangle-frame, three isometric extending arm cross bars 201 connect into triangle frame by pipe nipple point 204 not with lock function.The extending arm vertical pole 203 be connected with the first triangle-frame is inserted into meropodium point 202 with lock function and is fixedly connected with meropodium with lock function point 202 by injecting epoxide-resin glue (can solidify).The extending arm vertical pole 203 be connected with the second triangle-frame is inserted into pipe nipple point 204 not with lock function and is fixedly connected with pipe nipple not with lock function point 204 by injecting epoxide-resin glue.The extending arm vertical pole 203 be connected with extending arm base plate 206 is inserted into bottom node 205 and is fixedly connected with bottom node 205 by injecting epoxide-resin glue, and bottom node 205 is fixedly connected on extending arm base plate 206 by bottom bearing pin.
Extending arm base plate 206 is vertically connected to the cushion cap bridge piece 211 of collection cylinder by bolt 227.
As shown in Figure 5, the collection cylinder 103 of the present embodiment comprises the first column 207, second column 208, first cushion cap bridge piece 210, second cushion cap bridge piece 211, the 3rd cushion cap bridge piece 212, curved thin plate 209 and collection tube end plate 233.Wherein, three first columns 207 and three spaced formation regular hexagons of second column 208 are arranged, during regular hexagon is arranged, three first columns 207 form positive triangle and to arrange and three second columns 208 form positive triangle arranges.Curved thin plate 209 is all connected with between the first adjacent column 207 and the second column 208; Every root first column 207 is connected with the 3rd cushion cap bridge piece 212 first cushion cap bridge piece 210 identical with three along the longitudinal direction in turn, every root second column 208 is connected with the 3rd cushion cap bridge piece 212, second cushion cap bridge piece 211 first cushion cap bridge piece 210, the three cushion cap bridge piece 212 identical with three along the longitudinal direction in turn and is connected with collection tube end plate 233.Second cushion cap bridge piece 211 is connected with extending arm base plate 206.Curved thin plate 209 between the first adjacent column 207 and the second column 208 is disposed with three along the longitudinal direction of collection cylinder 103, and curved thin plate 209 is connected with the first column 207 or the second column 208 by the first cushion cap bridge piece 210.
First column 207 is vertically connected with collection tube end plate 233 by four bolts 213 by bolt 215 lateral connection the 3rd cushion cap bridge piece the 212, three cushion cap bridge piece 212.First column 207 connects three identical the first cushion cap bridge pieces 210 by three bolts 215.Second column 208 vertically connects the 3rd cushion cap bridge piece 212 by two bolts 215, and by bolt 215 lateral connection second cushion cap bridge piece 211, extending arm base plate 206 is longitudinally connected with the second cushion cap bridge piece 211 by two bolts 227.Then second column 208 passes through the first identical cushion cap bridge piece 210 of three bolt 215 lateral connection three.First column 207 and the second column 208 are vertically interconnected by curved thin plate 209 and four bolts 214.Curved thin plate 209 on each second column 208 can vertically connect extending arm locking and releasing mechanism by two bolts 216.
The locking of the present embodiment and releasing mechanism 102 comprise blocking device and multiple length arc cross bar not etc., blocking device is connected with the curved thin plate 209 on the second column 8 of collection cylinder 103, and blocking device comprises flap 217, L-type attaching parts 218, positioning key 219 and bearing pin 220.As shown in Figure 6, bearing pin 220 is inserted in flap 217, and the two ends of bearing pin 220 are connected to L-type attaching parts 18, and is fixedly connected with L-type attaching parts 18 by inserting positioning key 219.Whole blocking device is vertically connected by two bolts 216 with the curved thin plate 209 of collection cylinder.
As shown in Figure 7, the electromechanical transmission mechanism 104 of the present embodiment comprises thin straight flow servo motor 230, retarder (not shown), round turntable 229, rotating disk blade 225, square vertical pole 221, the bottom of thin straight flow servo motor 230 is fixedly connected with collection tube end plate 233 by four studs 231, four studs 231 are vertically connected with thin straight flow servo motor 230 by screw 2 232, the top of thin straight flow servo motor 230 is vertically fixedly connected with round turntable 229 by eight screws 228, round turntable 229 is provided with three fan rotating disk blades 225, one end of rotating disk blade 225 is vertically connected with round turntable 229 by six bolts 227, the other end of rotating disk blade 225 is connected with square vertical pole 221 by four bolts 226, square vertical pole 221 is provided with the arc cross bar that multiple length does not wait.Thin straight flow servo motor 230 is connected with retarder, rotates for driving round turntable 229.
In the present embodiment, the arc cross bar that multiple length does not wait comprises short arc cross bar 222, middle long arc shape cross bar 223 and the long arc shape cross bar 224 that length increases successively, and short arc cross bar 222, middle long arc shape cross bar 223 and long arc shape cross bar 224 are along the longitudinal direction of square vertical pole 221 successively in laterally inserted square vertical pole 221.
In the present embodiment, when extending arm truss 101 is under rounding state, meropodium point 202 with lock function in extending arm truss 101 just can overlap with one end of blocking device, the other end of blocking device respectively frame forms interlocking state on short arc cross bar 222, middle long arc shape cross bar 223, long arc shape cross bar 224, and extending arm truss 101 segmentation is drawn in collection cylinder 103.When energized, thin straight flow servo motor 230 drives round turntable 229 to rotate through retarder, rotating disk blade 225 this moment, square vertical pole 221, short arc cross bar 222, middle long arc shape cross bar 223 and long arc shape cross bar 224 rotate all simultaneously, because the length of arc cross bar is inconsistent, short arc cross bar 222 from top to bottom, middle long arc shape cross bar 223 is different with the time that long arc shape cross bar 224 passes completely through blocking device: short arc cross bar 222 is first through blocking device above, then be that in centre, long arc shape cross bar 223 passes blocking device, what eventually pass through is long arc shape cross bar 224 below, because arc cross bar to rotate but to pass completely through time of blocking device inconsistent simultaneously, material is thus formed the time difference.Short arc cross bar 222 is through after blocking device, and the meropodium point 202 in first triangle crossbearer unit from the top of extending arm truss 101 is released blocking device, thus the multistage extending arm vertical pole in first triangle crossbearer unit is released.Middle long arc shape cross bar 223 is through after blocking device, and the meropodium point 202 in second triangular truss unit is released blocking device, thus the multistage extending arm vertical pole in second triangular truss unit is released.Finally discharge the meropodium point bottom extending arm truss 101 in nethermost triangular truss unit and extending arm vertical pole.So the extending arm of the present embodiment utilizes the short arc cross bar 222 on square vertical pole 221, middle long arc shape cross bar 223, long arc shape cross bar 224 and meropodium with lock function point 202 to interact on the locking apparatus to realize gathering and the release of extending arm truss 101.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical personnels in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. a coiling extending arm for segmentation asymptotic expansion successively, is characterized in that, comprising: locking with releasing mechanism and the extending arm truss be connected successively, collect cylinder and electromechanical transmission mechanism;
Wherein, described extending arm truss is fixedly installed in described collection cylinder, and described extending arm truss is set to coil gathering; Described collection cylinder is set to can the described extending arm truss of memory disc under rounding state; Described locking and releasing mechanism are arranged at around the barrel of described collection cylinder, and expansion when launching with the resilience of described extending arm truss for compression locking when realizing described extending arm truss rounding state discharges; Described electromechanical transmission mechanism is for driving described extending arm truss and described locking and releasing mechanism.
2. the coiling extending arm of segmentation as claimed in claim 1 asymptotic expansion successively, it is characterized in that, described electromechanical transmission mechanism is positioned at the bottom of described extending arm truss, and it is inner to be arranged at described collection cylinder.
3. the coiling extending arm of segmentation as claimed in claim 1 asymptotic expansion successively, it is characterized in that, described extending arm truss comprises extending arm base plate and multiple triangular truss unit, described extending arm base plate to be arranged in described collection cylinder and to be connected with described collection cylinder, and described multiple triangular truss unit to set gradually and connected along the longitudinal direction of described extending arm truss; Each triangular truss unit comprises the first triangle frame and multiple second triangle frame; In each triangular truss unit, between described first triangle frame and described second triangle frame, between two, between described second triangle frame, be all connected with extending arm vertical pole; The triangular truss unit of the bottom of described extending arm truss is connected with described extending arm base plate by extending arm vertical pole; Described extending arm vertical pole has elasticity, coiling can draw in, thus described extending arm truss can be coiled draw in described collection cylinder in spring-like.
4. the coiling extending arm of segmentation as claimed in claim 3 asymptotic expansion successively, is characterized in that, in described first triangle-frame, three isometric extending arm cross bars connect into triangle frame by meropodium with lock function point; In described second triangle-frame, three isometric extending arm cross bars connect into triangle frame by pipe nipple not with lock function point; The extending arm vertical pole be connected with described first triangle-frame is inserted into described meropodium with lock function point and is fixedly connected with described meropodium with lock function point by injecting epoxide-resin glue; Pipe nipple point not with lock function described in the extending arm vertical pole be connected with described second triangle-frame is inserted into also is fixedly connected with described pipe nipple not with lock function point by injecting epoxide-resin glue; The extending arm vertical pole be connected with described extending arm base plate is inserted into bottom node and is fixedly connected with described bottom node by injecting epoxide-resin glue, and described bottom node is fixedly connected on described extending arm base plate.
5. the coiling extending arm of segmentation as claimed in claim 4 asymptotic expansion successively, it is characterized in that, described collection cylinder comprises the first column, the second column, the first cushion cap bridge piece, the second cushion cap bridge piece, the 3rd cushion cap bridge piece, curved thin plate and collection tube end plate; Wherein, three described first columns and three spaced formation regular hexagons of described second column are arranged, during described regular hexagon is arranged, three described first columns form positive triangle and to arrange and three described second columns form positive triangle arranges; Described curved thin plate is all connected with between adjacent described first column and described second column; First column described in every root is connected with the described 3rd cushion cap bridge piece described first cushion cap bridge piece identical with three along the longitudinal direction in turn, second column described in every root is connected with described 3rd cushion cap bridge piece, described first cushion cap bridge piece that described second cushion cap bridge piece is identical with three along the longitudinal direction in turn, described 3rd cushion cap bridge piece is connected with described collection tube end plate, and described second cushion cap bridge piece is connected with described extending arm base plate.
6. the coiling extending arm of segmentation as claimed in claim 5 asymptotic expansion successively, it is characterized in that, described curved thin plate between adjacent described first column and described second column is disposed with three along the longitudinal direction of described collection cylinder, and described curved thin plate is connected with described first column or described second column by described first cushion cap bridge piece.
7. the coiling extending arm of segmentation as claimed in claim 5 asymptotic expansion successively, it is characterized in that, described locking and releasing mechanism comprise blocking device and multiple length arc cross bar not etc., described blocking device is connected with the described curved thin plate of described collection cylinder, described blocking device comprises flap, L-type attaching parts, positioning key and bearing pin, described bearing pin is inserted in described flap, the two ends of described bearing pin are connected to described L-type attaching parts, and are fixedly connected with described L-type attaching parts by inserting positioning key.
8. the coiling extending arm of segmentation as claimed in claim 7 asymptotic expansion successively, it is characterized in that, described electromechanical transmission mechanism comprises DC servo motor, retarder, round turntable, rotating disk blade, square vertical pole, the bottom of described DC servo motor is fixedly connected with described collection tube end plate, the top of described DC servo motor is connected with described round turntable, described round turntable is provided with rotating disk blade, one end of described rotating disk blade is connected with described round turntable, the other end of described rotating disk blade is connected with described square vertical pole, described square vertical pole is provided with the arc cross bar that described multiple length does not wait, described DC servo motor is connected with described retarder, rotates for driving described round turntable.
9. the coiling extending arm of the asymptotic expansion successively of the segmentation as described in claim 5 or 8, it is characterized in that, the arc cross bar that described multiple length does not wait comprises short arc cross bar, middle long arc shape cross bar and the long arc shape cross bar that length increases successively, and described short arc cross bar, described middle long arc shape cross bar and described long arc shape cross bar are along the longitudinal direction of described square vertical pole successively in laterally inserted described square vertical pole.
10. the coiling extending arm of segmentation as claimed in claim 8 asymptotic expansion successively, it is characterized in that, when described extending arm truss is in rounding state, meropodium point in described extending arm truss just overlaps with one end of described blocking device, the other end of described blocking device forms interlocking state on described arc cross bar, makes described extending arm truss sections draw in described collection cylinder; When described DC servo motor drives described round turntable to rotate, described rotating disk blade, described square vertical pole and described arc cross bar rotate simultaneously, described blocking device and described arc cross bar are unlocked, thus described extending arm truss can discharge expansion; Due to multiple described arc cross bar length not etc., thus along described square vertical pole longitudinal direction from top to bottom described arc cross bar pass completely through described blocking device and time of unlocking different, make described extending arm truss segmentation can discharge expansion progressively successively.
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| CN106742076A (en) * | 2016-11-16 | 2017-05-31 | 上海卫星工程研究所 | A kind of wound form is hinged the expansion locking mechanism of extending arm |
| CN107804484A (en) * | 2017-09-25 | 2018-03-16 | 上海卫星工程研究所 | High storage applied to spacecraft is than controllable expanded truss device |
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| CN109098276A (en) * | 2018-10-11 | 2018-12-28 | 哈尔滨工业大学 | The molding in-orbit building system of truss and in-orbit method of construction are connected based on component |
| CN109411863A (en) * | 2018-10-18 | 2019-03-01 | 哈尔滨工业大学 | A kind of prism-shaped developable surface film antenna mechanism |
| CN109546282A (en) * | 2018-12-17 | 2019-03-29 | 西北工业大学 | A kind of truss-like space antenna extending arm |
| WO2021037785A1 (en) * | 2019-08-29 | 2021-03-04 | University Of Limerick | Deployable structures |
| CN111409871A (en) * | 2020-03-19 | 2020-07-14 | 上海卫星工程研究所 | Satellite platform configuration with extendable truss node pods |
| CN113895652A (en) * | 2021-09-16 | 2022-01-07 | 大连理工大学 | Truss type stretching arm capable of being unfolded and folded |
| CN113895652B (en) * | 2021-09-16 | 2023-08-04 | 大连理工大学 | Truss type extension arm capable of being unfolded and folded |
| CN117963165A (en) * | 2024-04-02 | 2024-05-03 | 北京航空航天大学 | Space coiling formula extension arm mechanism based on built-in double-screw bolt is expanded |
| CN118004451A (en) * | 2024-04-02 | 2024-05-10 | 北京航空航天大学 | Multi-solar-wing synchronous unfolding device based on secondary unfolding of coiled stretching arm |
| CN117963165B (en) * | 2024-04-02 | 2024-05-31 | 北京航空航天大学 | Space coiling formula extension arm mechanism based on built-in double-screw bolt is expanded |
| CN118004451B (en) * | 2024-04-02 | 2024-06-04 | 北京航空航天大学 | Multi-solar-wing synchronous unfolding device based on secondary unfolding of coiled stretching arm |
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