CN104260900B - Truss-like telescopic unit and telescopic support arm that elastic hinge drives - Google Patents
Truss-like telescopic unit and telescopic support arm that elastic hinge drives Download PDFInfo
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- CN104260900B CN104260900B CN201410578208.1A CN201410578208A CN104260900B CN 104260900 B CN104260900 B CN 104260900B CN 201410578208 A CN201410578208 A CN 201410578208A CN 104260900 B CN104260900 B CN 104260900B
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Abstract
Truss-like telescopic unit and telescopic support arm that elastic hinge drives, the telescopic support arm that it relates to a kind of truss-like telescopic unit and is made up of this truss-like telescopic unit, there is driving mechanism complexity to solve existing radial type support arm, folding volume is large, repetition precision of expansion is low, greatly increased construction weight and launched the lower problem of reliability, it comprises upper side frame, lower frame, N root elastic hinge formula folding arm and N group inhaul cable assembly; Upper side frame and lower frame be arranged in parallel, and the upper and lower corresponding setting in N summit of the N of a upper side frame summit and lower frame, each drift angle corresponding between upper side frame and lower frame is supported and is rotatably connected by an elastic hinge formula folding arm respectively, and the rectangle plane inner opposite angle place forming between upper side frame, lower frame and adjacent two elastic hinge formula folding arms is provided with one group of inhaul cable assembly. The present invention is for satellite, space station and space probe.
Description
Technical field
The telescopic support arm that the present invention relates to a kind of truss-like telescopic unit and formed by this truss-like telescopic unit, toolBody relates to a kind of truss-like telescopic unit of elastic hinge driving and the telescopic being made up of this truss-like telescopic unit supportsArm, belongs to the one-dimensional space and can repeat development mechanism.
Background technology
Along with the fast development of the causes such as space communication, earth observation, survey of deep space, manned space flight, to large scale, light weightThe demand of the aerospace mechanism of change, high geometrical stability becomes very urgent, but is subject to the restriction of rocket radome fairing volume, needsDesign the space fold-playing mechanism with large folding exhibition ratio,, and enter at spacecraft in folded state at transport and launching phaseAfter rail, be launched into duty.
Space mast in various deep space probing activities, be mainly for launch flexible solar windsurfing, support deployable antenna,Synthetic aperture radar, space telescope etc. After satellite injection, Satellite Payloads is slow under the instruction of control systemLaunch also to maintain a certain distance by support arm and satellite body, to prevent from producing between payload and satellite body signalDisturb and coupled vibrations, the size of support arm is conventionally very large, and its length reaches tens of rice rice even up to a hundred, and this just requires to prop upBrace has certain folding and expansion or unidirectional expansion function, and when satellite is during in ground emission state, support arm becomes to receiveHold together state, when after satellite injection, support arm becomes deployed condition, for satellite antenna provides reliable support.
Deployable support arm is developed so far, and its version is varied, and wherein radial type extending arm has high rigidity, Gao ChengLoading capability, the feature of higher reliability, but existing radial type supporting arm mechanism adopts motor as power source, relies on motorThe moment of torsion of output drives whole mechanism deploying, can effectively control development rate although motor drives, and reduces mechanism deploying mistakeImpact shock in journey, but complicated driving mechanism has not only increased the weight of structure, has also reduced reliability of structure, holdsEasily cause that supporting arm mechanism launches unsuccessfully, cause space exploration task to realize, thereby cause huge economic loss.
Summary of the invention
There is driving mechanism complexity for solving existing radial type support arm in the present invention, folding volume is large, repetition precision of expansionLow, greatly increase construction weight and launched the lower problem of reliability, and then the truss that provides a kind of elastic hinge to driveFormula telescopic unit and telescopic support arm.
The present invention addresses the above problem the technical scheme of taking to be: the truss-like telescopic unit bag that a kind of elastic hinge drivesDraw together upper side frame, lower frame, N root elastic hinge formula folding arm and N group inhaul cable assembly; Described upper side frame and lower frame are N limitShape frame;
Upper side frame and lower frame be arranged in parallel, and the upper and lower corresponding setting in N summit of the N of a upper side frame summit and lower frame,Each drift angle corresponding between upper side frame and lower frame is supported and is rotatably connected by an elastic hinge formula folding arm, onThe rectangle plane inner opposite angle place forming between frame, lower frame and adjacent two elastic hinge formula folding arms is provided with one group of drag-lineAssembly, wherein N is positive integer, and 3≤N≤6;
Every described elastic hinge formula folding arm comprises that under folding arm on unit, unit, folding arm is connected elastic hinge assembly with unit,Described unit connects elastic hinge assembly and comprises two elastic hinge jointings, two elastic hinge spring leafs and four elasticityChain connection briquetting, on unit, under folding arm and unit, the abutting end of folding arm is affixed with elastic hinge jointing respectively, two bulletsProperty hinge spring sheet is symmetrical side by side, and the two ends of two elastic hinge spring leafs connect with corresponding elastic hinge separatelyHead glueds joint, and four elastic hinges connect briquetting and are divided into two couple who is arranged symmetrically with up and down, and the two ends of each elastic hinge spring leaf are dividedBe not furnished with an elastic hinge and connect briquetting, elastic hinge connection briquetting and elastic hinge jointing are affixed.
The telescopic support arm of the truss-like telescopic unit composition that elastic hinge of the present invention drives comprises that multiple elastic hinges driveMoving truss-like telescopic unit and multiple transition folding exhibition assembly, the truss-like telescopic list that every adjacent two elastic hinges driveBetween unit, be rotationally connected by a transition folding exhibition assembly, described transition folding exhibition assembly comprises that the transition of N root elastic hinge formula is foldingArm and multiple transition traction cable, N root elastic hinge formula transition folding arm supports respectively and rotates and is arranged on upper side frame and lower frameBetween drift angle place, the rectangle forming between upper side frame and lower frame and adjacent two elastic hinge formula transition folding arms is flatFace inner opposite angle place intersection is provided with two transition traction cable;
Every described elastic hinge formula transition folding arm comprises that under folding arm in transition, transition, folding arm is connected elasticity hinge with transition elementChain component, described transition element connects elastic hinge assembly and comprises two elastic hinge jointings, two elastic hinge springsSheet is connected briquetting with four elastic hinges, in transition under folding arm and transition the abutting end of folding arm respectively with elastic hinge jointingAffixed, two elastic hinge spring leafs are symmetrical side by side, the two ends of two elastic hinge spring leafs separately with corresponding bulletProperty chain connection joint glued joint, four elastic hinges connect briquettings and are divided into two couple who is arranged symmetrically with up and down, each elastic hinge bulletThe two ends of reed have posted respectively an elastic hinge and have connected briquetting, and elastic hinge connects briquetting and elastic hinge jointing is solidConnect, in described transition, under folding arm and transition, folding arm is made by carbon fibre composite or aviation aluminum alloy material.
The present invention compared with prior art has following effect: 1. overall structure symmetry of the present invention, unit module quantity canFor several, unit module quantity can be expanded according to the demand of antenna aperture, and module autgmentability is strong, can realize modularizationProduce, reduce manufacturing cost and difficulty; 2. to draw rear volume in little, lightweight in the present invention, and storage rate is up to 30%; 3. the present inventionIn added traction cable, traction cable has overcome diagonal angle drag-line and has been wound around and the erratic problem of moving, and has strengthened support simultaneouslyThe integral rigidity of arm and repetition precision of expansion; 4. deployable support arm of the present invention relies on elastic hinge to realize power drive, noNeed to increase extra driving mechanism, alleviate the weight of structure; 5. the present invention launches that motion is simple, reliability is high, along withModularization does not need deliberately to increase other driven unit after expanding, the present invention launches to control simply in addition, good stability;6. its expansion process of telescopic support arm of the present invention is realized by the elastic potential energy that discharges elastic hinge, after elastic hinge launchesRecover vertical straight state, this state is stable state, needs larger moment make its flexural deformation, therefore folding arm after launching notNeed locking device, embodiment is simple, working stability is reliable; 7. all structures of the present invention are all to be added by space flight common used materialWork is manufactured, rich material resources, and processing technology maturation, is convenient to the smooth enforcement of mechanism.
Brief description of the drawings
Fig. 1 is the perspective view of triangular prism truss-like telescopic unit, and Fig. 2 is triangular prism truss-like telescopic unitThe telescopic support arm of composition draws structural representation in, and Fig. 3 is the rolling over of triangular prism truss-like telescopic unit composition of Fig. 2Exhibition arm deployed configuration schematic diagram, Fig. 4 is the perspective view of quadrangular truss-like telescopic unit, Fig. 5 is quadrangularThe telescopic support arm deployed configuration schematic diagram of truss-like telescopic unit composition, Fig. 6 is that the quadrangular truss-like of Fig. 5 can be rolled overThe telescopic support arm of exhibition unit composition draws structural representation in, and Fig. 7 is that elastic hinge formula folding arm draws structural representation in,Fig. 8 is elastic hinge formula folding arm deployed configuration schematic diagram, and Fig. 9 is the structural representation of traction cable, and Figure 10 is Fig. 9A place partial enlarged drawing, Figure 11 is the expansion Control Component and folding exhibition support arm syndeton schematic diagram of detailed description of the invention ten.
Detailed description of the invention
Detailed description of the invention one: in conjunction with Fig. 1-Figure 10 explanation, the truss-like that a kind of elastic hinge of present embodiment drives can be rolled overExhibition unit comprises upper side frame 1, lower frame 4, N root elastic hinge formula folding arm 3 and N group inhaul cable assembly 2; Described upper side frame 1Be N limit shape frame with lower frame 4;
Upper side frame 1 and lower frame 4 be arranged in parallel, and N summit of the N of upper side frame 1 summit and lower frame 4 is right up and downShould arrange, each drift angle corresponding between upper side frame 1 and lower frame 4 supports also by an elastic hinge formula folding arm 3Be rotatably connected, in the rectangle plane forming between upper side frame 1, lower frame 4 and adjacent two elastic hinge formula folding arms 3Diagonal angle place is provided with one group of inhaul cable assembly 2, and wherein N is positive integer, and 3≤N≤6.
The truss-like telescopic unit that the elastic hinge of present embodiment drives is inwardly folding by elastic hinge formula folding arm assemblyRealize and drawing in. Inhaul cable assembly has played the effect that just turns into and improve truss rigidity.
Detailed description of the invention two: in conjunction with Fig. 1 and Fig. 4 explanation, upper side frame 1 and lower frame 4 are three described in present embodimentDihedral or quadrangle frame. So arrange, simple in structure, reasonable in design, easy to use. Other and detailed description of the invention oneIdentical.
Detailed description of the invention three: in conjunction with Fig. 1-Fig. 3, Fig. 5, Fig. 6 explanation, every described elastic hinge formula of present embodimentFolding arm 3 comprises on unit under folding arm 6, unit that folding arm 7 is connected elastic hinge assembly 8 with unit, and described unit connects elasticityHinge component 8 comprises that two elastic hinge jointings 10, two elastic hinge spring leafs 11 are connected pressure with four elastic hingesPiece 9, on unit, under folding arm 6 and unit, the abutting end of folding arm 7 is affixed with elastic hinge jointing 10 respectively, two elasticityHinge spring sheet 11 is symmetrical side by side, and the two ends of two elastic hinge spring leafs 11 connect with corresponding elastic hinge separatelyJoint 10 glueds joint, and four elastic hinges connect briquetting 9 and are divided into two couple who is arranged symmetrically with up and down, each elastic hinge spring leaf11 two ends are furnished with respectively an elastic hinge and connect briquetting 9, and elastic hinge connects briquetting 9 and elastic hinge jointing10 is affixed. Present embodiment, can be real between folding arm 7 under folding arm 6 and unit on unit by the flexural deformation of elastic hingeExisting rotational motion. Other is identical with detailed description of the invention one or two.
Detailed description of the invention four: in conjunction with Fig. 1, Fig. 4 and Fig. 9 explanation, every group of inhaul cable assembly 2 of present embodiment comprises twoTraction cable, two traction cable are mutually intersected and rotate on the diagonal that is arranged on upper side frame 1 and lower frame 4 Mei GelaRope assembly includes unit the first pipe box 13, unit the second pipe box 15, unit drag-line 14 and two unit articulated joints 12, singleOne end of unit's the first pipe box 13 is connected with a unit articulated joint 12, one end of unit the second pipe box 15 and another unit hingeJoint 12 connects, and the two ends of unit drag-line 14 are located in the inner chamber of unit the first pipe box 13 and unit the second pipe box 15,The two ends of unit zip 14 are affixed by a unit articulated joint 12 respectively. So arrange, overcome that diagonal angle drag-line is wound around andThe erratic problem of moving, has strengthened the integral rigidity of support arm simultaneously and has repeated precision of expansion. Other and detailed description of the inventionThree is identical.
Detailed description of the invention five: in conjunction with Fig. 9 explanation, the unit drag-line 14 of present embodiment is Kev stay cord or carbon fiber rope.So arrange, Kev stay cord has high temperature resistant, and fire protection flame retarding is lightweight, and intensity is high, and modulus is high, and dimensionally stable shrinksRate is low, resistance to puncturing, abrasion performance, heat resistance, resistance to chemical attack, good mechanical property, the advantage such as dielectricity is good; Carbon fiber ropeHave intensity large, high conductive feature, is convenient to ensure to repeat precision of expansion. Other is identical with detailed description of the invention four.
Detailed description of the invention six: in conjunction with Fig. 9 explanation, the list in every described elastic hinge formula folding arm 3 of present embodimentIn unit, under folding arm 6, unit, folding arm 7 is made by carbon fibre composite or aviation aluminum alloy material. Aviation aluminium is so setAlloy material has the feature of the recessed combination property of the resistance to antifatigue of high intensity and high ductility, carbon fibre composite has high temperature resistant, antifrictionWiping, conduction, heat conduction and corrosion resistant feature, it is moving that the truss-like telescopic unit that elastic hinge drives relies on elastic hinge to realizePower drives, and not needing increases extra driving mechanism, has alleviated the weight of structure. Other and detailed description of the invention four or five phasesWith.
Detailed description of the invention seven: in conjunction with Fig. 9 explanation, the elastic hinge spring leaf 11 of present embodiment is by spring steel, beryllium-bronzeOr memory alloy material is made. So arrange, after elastic hinge launches, recover vertical straight state, this state is stable state, needsLarger moment make its flexural deformation, therefore folding arm does not need locking device after launching, easy to use, expansion reliabilityHeight, can select the materials such as elastomeric spring steel, beryllium-bronze or memorial alloy. Other is identical with detailed description of the invention six.
Detailed description of the invention eight: in conjunction with Fig. 3 and Fig. 5 explanation, the truss-like telescopic that present embodiment is driven by elastic hingeThe telescopic support arm of unit composition comprises truss-like telescopic unit and the multiple transition folding exhibition assembly that multiple elastic hinges drive5, between the truss-like telescopic unit that every adjacent two elastic hinges drive, be rotationally connected by a transition folding exhibition assembly 5,Described transition folding exhibition assembly 5 comprises N root elastic hinge formula transition folding arm 20 and multiple transition traction cable 21, N root elasticityHinge type transition folding arm 20 supports respectively and rotates the drift angle place being arranged between upper side frame 1 and lower frame 4, upper side frame 1Intersect and be provided with the rectangle plane inner opposite angle place forming between lower frame and adjacent two elastic hinge formula transition folding arms 20Two transition traction cable 21. The composition of present embodiment transition traction cable 21 and annexation and detailed description of the invention four phasesWith. Other is identical with detailed description of the invention one, two, four, five or seven.
Detailed description of the invention nine: in conjunction with Fig. 3, Fig. 5 and Fig. 8 explanation, the every described elastic hinge formula transition of present embodimentFolding arm 20 comprises in transition under folding arm 22, transition that folding arm 23 is connected elastic hinge assembly 24, described transition with transition elementUnit connects elastic hinge assembly 24 and comprises two elastic hinge jointings 10, two elastic hinge spring leafs 11 and fourElastic hinge connect briquetting 9, in transition under folding arm 22 and transition the abutting end of folding arm 23 respectively with elastic hinge jointing10 is affixed, and two elastic hinge spring leafs 11 are symmetrical side by side, the two ends of two elastic hinge spring leafs 11 separately with phaseCorresponding elastic hinge jointing 10 glueds joint, and four elastic hinges connect briquetting 9 and are divided into two couple who is arranged symmetrically with up and down, everyThe two ends of individual elastic hinge spring leaf 11 have posted respectively elastic hinge and have connected briquetting 9, elastic hinge connect briquetting 9 withElastic hinge jointing 10 is affixed, in described transition under folding arm 22 and transition folding arm 23 by carbon fibre composite orAviation aluminum alloy material is made. So arrange, aviation aluminum alloy material has the recessed combination property of the resistance to antifatigue of high intensity and high ductilityFeature, that carbon fibre composite has is high temperature resistant, rub resistance, conduction, heat conduction and corrosion resistant feature, and elastic hinge drivesTruss-like telescopic arm rely on elastic hinge realize power drive, not needing increases extra driving mechanism, has alleviated structureWeight.
Composition and annexation that present embodiment transition element connects elastic hinge assembly 24 are identical with detailed description of the invention three.Other is identical with detailed description of the invention eight.
Detailed description of the invention ten: in conjunction with Figure 11 explanation, the truss-like telescopic unit that elastic hinge drives described in present embodimentThe telescopic support arm of composition also comprises expansion Control Component, described expansion Control Component comprise put rope drum 16, motor 17,Control fast rope 18, support arm front-end bracket 19 and base support 25, support arm front-end bracket 19 and first truss-like telescopicThe upper side frame 1 of unit connects, and base support 25 is hinged with the lower frame 4 of last truss-like telescopic unit, motor 17Be arranged on base support 25, put rope drum 16 and be rotatably installed on base support 25, put the axial and electricity of rope drum 16The axially parallel of machine 17, the output of motor 17 with put rope drum 16 and be connected, control one end and the support arm front end of fast rope 18Support 19 is affixed, and the other end of controlling fast rope 18 is wrapped in to be put on rope drum 16. The whole telescopic support arm of present embodiment bySeveral unit connect elastic hinge assembly 8 and are connected the elastic hinge bending in elastic hinge assembly 24 with several transition elementsThe sex change of rear generation can realize driving and launch, and is driven and puts rope drum 16 and rotate as power source by motor 17, controls control speedThe rate of release of rope 18, makes the controlled steady expansion of whole telescopic support arm, reduces the shock effect while expansion. So be convenient toEnsure steadily to launch to launch to impact with minimizing. Other is identical with detailed description of the invention nine.
The course of work
In conjunction with Fig. 1-Figure 11 explanation, polygon prism truss-like telescopic of the present invention unit is inside by elastic hinge formula folding arm 3Folding realization drawn in, relies on the elastic potential energy of elastic hinge spring leaf 11 to realize power drive, on unit under folding arm 6 and unitFolding arm 7 is realized and being launched, and in the time that folding arm under folding arm on unit 6 and unit 7 launches to be vertical state, unit launches to put in place lockingFirmization. Whole expansion process relies on elastic hinge spring leaf to realize power drive, does not need to increase extra driving mechanism. OftenMany group elastic hinge formula folding arms 3 are installed on individual polygon prism telescopic unit, ensured polygon prism telescopic unit rigidity andRepeat precision of expansion. For anti-stop element drag-line 14 is wound around in expansion gathering process, unit drag-line 14 is placed in to unitIn the first pipe box 13 and unit the second pipe box 15. Whole telescopic support arm connects elastic hinge assembly 8 by several unitBe connected sex change that the elastic hinge bending in elastic hinge assembly 24 produces afterwards with several transition elements and can realize driving and launch,Drive and put rope drum 16 and rotate as power source by motor 17, control the rate of release of the fast rope 18 of control, make whole telescopicThe controlled steady expansion of support arm, reduces the shock effect while expansion. So be convenient to ensure steadily launch to launch to impact with minimizing.
Claims (8)
1. the truss-like telescopic unit that elastic hinge drives, is characterized in that: it comprises upper side frame (1), lower frame (4), N root elastic hinge formula folding arm (3) and N group inhaul cable assembly (2); Described upper side frame (1) and lower frame (4) are N limit shape frame;
Upper side frame (1) and lower frame (4) be arranged in parallel, and N summit of upper side frame (1) and the upper and lower corresponding setting in N summit of lower frame (4), each drift angle corresponding between upper side frame (1) and lower frame (4) is supported and is rotatably connected by an elastic hinge formula folding arm (3), the rectangle plane inner opposite angle place forming between upper side frame (1), lower frame (4) and adjacent two elastic hinge formula folding arms (3) is provided with one group of inhaul cable assembly (2), wherein N is positive integer, and 3≤N≤6;
Every described elastic hinge formula folding arm (3) comprises folding arm on unit (6), folding arm under unit (7) is connected elastic hinge assembly (8) with unit, described unit connects elastic hinge assembly (8) and comprises two elastic hinge jointings (10), two elastic hinge spring leafs (11) are connected briquetting (9) with four elastic hinges, under folding arm on unit (6) and unit, the abutting end of folding arm (7) is affixed with elastic hinge jointing (10) respectively, two elastic hinge spring leafs (11) are symmetrical side by side, glued joint with corresponding elastic hinge jointing (10) separately at the two ends of two elastic hinge spring leafs (11), four elastic hinges connect briquetting (9) and are divided into two couple who is arranged symmetrically with up and down, the two ends of each elastic hinge spring leaf (11) are furnished with respectively an elastic hinge and connect briquetting (9), it is affixed with elastic hinge jointing (10) that elastic hinge connects briquetting (9).
2. the truss-like telescopic unit that elastic hinge according to claim 1 drives, is characterized in that: described upper side frame (1) and lower frame (4) are triangle or quadrangle frame.
3. the truss-like telescopic unit that elastic hinge according to claim 1 and 2 drives, it is characterized in that: every group of inhaul cable assembly (2) comprises two traction cable, two traction cable are mutually intersected and rotate on the diagonal that is arranged on upper side frame (1) and lower frame (4), each traction cable includes unit the first pipe box (13), unit the second pipe box (15), unit drag-line (14) and two unit articulated joints (12), one end of unit the first pipe box (13) is connected with a unit articulated joint (12), one end of unit the second pipe box (15) is connected with another unit articulated joint (12), the two ends of unit drag-line (14) are located in the inner chamber of unit the first pipe box (13) and unit the second pipe box (15), the two ends of unit drag-line (14) are affixed by a unit articulated joint (12) respectively.
4. the truss-like telescopic unit that elastic hinge according to claim 3 drives, is characterized in that: described unit drag-line (14) is Kev stay cord or carbon fiber rope.
5. the truss-like telescopic unit that elastic hinge according to claim 4 drives, is characterized in that: on the unit in every described elastic hinge formula folding arm (3), under folding arm (6), unit, folding arm (7) is made by carbon fibre composite or aviation aluminum alloy material.
6. the truss-like telescopic unit that elastic hinge according to claim 5 drives, is characterized in that: elastic hinge spring leaf (11) is made up of spring steel, beryllium-bronze or memory alloy material.
7. one kind is utilized claim 1, 2, 4, the telescopic support arm of the truss-like telescopic unit composition that the elastic hinge described in 5 or 6 drives, it is characterized in that: it comprises truss-like telescopic unit and the multiple transition folding exhibition assembly (5) that multiple elastic hinges drive, between the truss-like telescopic unit that every adjacent two elastic hinges drive, be rotationally connected by a transition folding exhibition assembly (5), described transition folding exhibition assembly (5) comprises N root elastic hinge formula transition folding arm (20) and multiple transition traction cable (21), N root elastic hinge formula transition folding arm (20) supports respectively and rotates the drift angle place being arranged between upper side frame (1) and lower frame (4), the rectangle plane inner opposite angle place forming between upper side frame (1) and lower frame (4) and adjacent two elastic hinge formula transition folding arms (20) intersects and is provided with two transition traction cable (21),
Every described elastic hinge formula transition folding arm (20) comprises folding arm in transition (22), folding arm under transition (23) is connected elastic hinge assembly (24) with transition element, described transition element connects elastic hinge assembly (24) and comprises two elastic hinge jointings (10), two elastic hinge spring leafs (11) are connected briquetting (9) with four elastic hinges, under folding arm in transition (22) and transition, the abutting end of folding arm (23) is affixed with elastic hinge jointing (10) respectively, two elastic hinge spring leafs (11) are symmetrical side by side, glued joint with corresponding elastic hinge jointing (10) separately at the two ends of two elastic hinge spring leafs (11), four elastic hinges connect briquetting (9) and are divided into two couple who is arranged symmetrically with up and down, the two ends of each elastic hinge spring leaf (11) have posted respectively an elastic hinge and have connected briquetting (9), it is affixed with elastic hinge jointing (10) that elastic hinge connects briquetting (9), under folding arm in described transition (22) and transition, folding arm (23) is made by carbon fibre composite or aviation aluminum alloy material.
8. the telescopic support arm of the truss-like telescopic unit composition that elastic hinge according to claim 7 drives, it is characterized in that: the telescopic support arm of the truss-like telescopic unit composition that described elastic hinge drives also comprises expansion Control Component, described expansion Control Component comprises puts rope drum (16), motor (17), control fast rope (18), support arm front-end bracket (19) and base support (25), support arm front-end bracket (19) is connected with the upper side frame (1) of first truss-like telescopic unit, base support (25) is hinged with the lower frame (4) of last truss-like telescopic unit, motor (17) is arranged on base support (25), putting rope drum (16) is rotatably installed on base support (25), put the axially parallel of the axial and motor (17) of rope drum (16), the output of motor (17) with put rope drum (16) and be connected, one end and the support arm front-end bracket (19) of controlling fast rope (18) are affixed, the other end of controlling fast rope (18) is wrapped in to be put on rope drum (16).
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| CN201410578208.1A CN104260900B (en) | 2014-10-25 | 2014-10-25 | Truss-like telescopic unit and telescopic support arm that elastic hinge drives |
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| CN201410578208.1A CN104260900B (en) | 2014-10-25 | 2014-10-25 | Truss-like telescopic unit and telescopic support arm that elastic hinge drives |
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2014
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