CN106410362A - Stretching forming mechanism of parabolic cylinder - Google Patents
Stretching forming mechanism of parabolic cylinder Download PDFInfo
- Publication number
- CN106410362A CN106410362A CN201610986346.2A CN201610986346A CN106410362A CN 106410362 A CN106410362 A CN 106410362A CN 201610986346 A CN201610986346 A CN 201610986346A CN 106410362 A CN106410362 A CN 106410362A
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- China
- Prior art keywords
- stretching
- parabolic cylinder
- arm unit
- locking
- stretches
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/084—Pivotable antennas
Abstract
The invention provides a stretching forming mechanism of a parabolic cylinder. The stretching forming mechanism is composed of stretching arm units, torsion springs, locking plates, screws, a rotating shaft, a locking groove, and connecting rods. The first stretching arm unit is fixed in a receiving cylinder and other stretching arm units are connected successively and wind into the receiving cylinder; different folding angles are formed between the adjacent stretching arm units and the locking function is completed by using the locking plates. Screw holes are formed in the locking plates; the screws and the screw holes are in threaded connection and the screws pass through the rotating shaft; and the torsion springs sleeve the screws. The rotating shaft is arranged between the inner sides of the locking plates and the torsion springs; and the locking groove is formed in the side of the rotating shaft. The connecting rods are fixed at the sides of the stretching arm units. The mechanism has characteristics of large receiving rate, high rigidity, and light weight and can be applied to fields of a large stretching antenna, a stretching mechanism of a hood of a space telescope, s space manipulator and a space platform.
Description
Technical field
The present invention relates to a kind of parabolic cylinder stretches shaping mechanism, it can be used for large-scale deployable antenna, solar array, space
Mechanical hand and space platform etc..
Background technology
Large Deployable satellite antenna is a kind of new spatial structure being born with Space Science and Technology growth requirement in nearly 20 years
The divine force that created the universe, it is comprised low pair movable agency and is connect based on aerospace material the features such as high intensity ratio, high rigidity ratio, high stability
Point, driving element and actively or passively controller etc..Such antenna requirement is rounding state in ground launch, is fixed on effectively
In load cabin；After transmitting injection, it is instructed on space orbit by design requirement by ground control centre, progressively complete
Become expansion action, then lock and remain working condition.Therefore, stretch shaping mechanism can launch accurately and in time to put in place
Directly influence the success or not of whole satellite launch task.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of parabolic cylinder stretches shaping mechanism, its tool
Have the features such as big storage ratio, high rigidity and lightweight, can be used for large-scale deployable antenna, space telescope shade extension means,
The field such as space mechanical handss and space platform.
According to an aspect of the present invention, a kind of parabolic cylinder is provided to stretch shaping mechanism it is characterised in that described parabolic
Cylinder stretches shaping mechanism and includes stretching arm unit, torsion spring, locking plate, screw, rotating shaft, locking groove, connecting rod, first stretching, extension
Arm unit is fixed on an admission extinguisher, and other stretch arm unit and are sequentially connected and are coiled in admission extinguisher, two neighboring stretching, extension
There are between arm unit different expanded angles and locking function is completed by locking plate, locking plate is provided with screwed hole, screw
Threaded with screwed hole and pass through rotating shaft, on screw, rotating shaft is located between inner side and the torsion spring of locking plate torsion spring set, locking
Groove is located at the side of rotating shaft, and connecting rod is fixed on the side stretching arm unit.
Preferably, described parabolic cylinder stretches shaping mechanism by the use of driving means as core action element, driving means
It is connected with terminal extensions arm unit, driving means drive and drive each stretching, extension arm unit to launch successively, after reaching specified location,
Locking plate enters locking groove and completes lock function.
Preferably, described driving means are motors.
Preferably, each stretching, extension arm unit linkage section described requires one angle of inclination of design according to parabolic surface, makes
It is in the extending arm of deployed condition approximation theory parabola in the way of more piece splicing, meanwhile, angle of inclination should according to parabola
It is adjusted with demand.
Preferably, described locking groove with respect to stretch arm unit plane angle according to angle change.
Preferably, described parabolic cylinder stretches the movement velocity that shaping mechanism controls extending arm by driving means.
Preferably, each stretching, extension arm unit described is all provided with having counted locking mechanism, and this locking mechanism limits the anti-of extending arm
To revolution.
Preferably, described parabolic cylinder stretches the stretching, extension in rectilinear direction and direction of a curve for the shaping mechanism realization.
Compared with prior art, the present invention has following beneficial effect：
One, stretch shaping mechanism and approximation theory parabola is come with the more piece extending arm of different expanded angles, angle of inclination can
Improved according to parabola application demand, with strong applicability.
Two, parabolic cylinder stretches shaping mechanism and controls expansion action, Stability Analysis of Structures by motor driver, and Autonomous Control is stretched
The movement velocity of exhibition arm, reliability is high.
Three, the locking mechanism between unit is used for structure and locks, and has higher locking rigidity.
Four, stretch shaping mechanism and may be implemented in rectilinear direction and the stretching, extension of direction of a curve, short in can realizing as needed
Distance, to the expansion of distance, has the very strong suitability.
Five, parabolic cylinder stretching, extension molding mechanism size is little, and every section of extending arm has 180 ° and rotates freely angle, development distance
Long, storage is than big.
Brief description
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the coiled state schematic diagram that parabolic cylinder of the present invention stretches shaping mechanism；
Fig. 2 is the extending arm cell schematics that parabolic cylinder of the present invention stretches shaping mechanism.
Fig. 3 is the working state schematic representation that parabolic cylinder of the present invention stretches shaping mechanism.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformation can also be made and improve.These broadly fall into the present invention
Protection domain.
As shown in Figure 1 to Figure 3, parabolic cylinder of the present invention stretches shaping mechanism and mainly includes stretching arm unit 1, torsion spring 2, lock
Stator 3, screw 4, rotating shaft 5, locking groove 6, connecting rod 7, first stretching, extension arm unit 1 is fixed on an admission extinguisher, and other are stretched
Exhibition arm unit is sequentially connected and is coiled in admission extinguisher, has different expanded angles and lead between two neighboring stretching, extension arm unit
Cross locking plate 3 and complete locking function, locking plate 3 is provided with screwed hole 8, screw 4 is threadeded with screwed hole 8 and passed through rotating shaft 5,
Torsion spring 2 is enclosed within screw 4, and rotating shaft 5 is located between inner side and the torsion spring 2 of locking plate 3, and locking groove 6 is located at the side of rotating shaft 5,
Connecting rod 7 is fixed on the side stretching arm unit 1.
Described parabolic cylinder stretches shaping mechanism by the use of driving means as core action element, and driving means are stretched with end
Exhibition arm unit is connected, and driving means drive and drive each stretching, extension arm unit to launch successively, and after reaching specified location, locking plate enters
Enter to lock groove and complete lock function.Driving means can be motor, and such general context is wide, low cost.
As shown in Fig. 2 each stretches arm unit linkage section can require one angle of inclination of design according to parabolic surface, make
It is in the extending arm of deployed condition approximation theory parabola in the way of more piece splicing, meanwhile, angle of inclination can be according to parabola
Application demand is adjusted.The angle locking groove with respect to stretching, extension arm unit plane is according to angle change, and ratio tilts
Angle is bigger.
Described stretching, extension shaping mechanism is arranged in admission extinguisher, and parabolic cylinder of the present invention stretches shaping mechanism and passes through driving means
Control the movement velocity of extending arm, thus realizing the controlled expansion campaign of whole device.
Each stretches arm unit and is all provided with having counted locking mechanism, and this locking mechanism limits the reversed turning of extending arm, has
Higher locking rigidity.
Parabolic cylinder of the present invention stretches shaping mechanism and may be implemented in rectilinear direction and the stretching, extension of direction of a curve, can be according to need
Short-distance and medium-distance to be realized, to the expansion of distance, have the very strong suitability.
In sum, this stretching, extension shaping mechanism has the features such as big storage ratio, lightweight and high reliability, is a kind of boat
The stretching, extension shaping mechanism of stronger using value is had on its device.
The present invention has the features such as big storage ratio, high rigidity and lightweight, can be used for large-scale deployable antenna, space telescope
The fields such as shade extension means, space mechanical handss and space platform.This stretches molding institution requests and is in gathering locking shape
It is coiled in during state in antenna admission extinguisher, when being in deployed condition, expansion action can be gradually completing by design requirement, make antenna molding
For required parabolic cylinder planar.It may be implemented in rectilinear direction and the stretching, extension of direction of a curve, has wide applicability, right
Complete expansion locking task to have compared with strong adaptability.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (8)
1. a kind of parabolic cylinder stretches shaping mechanism it is characterised in that described parabolic cylinder stretches shaping mechanism includes extending arm
Unit, torsion spring, locking plate, screw, rotating shaft, locking groove, connecting rod, first stretching, extension arm unit is fixed on an admission extinguisher,
Other stretch arm unit and are sequentially connected and are coiled in admission extinguisher, have the different angles of spread between two neighboring stretching, extension arm unit
Spend and locking function completed by locking plate, locking plate is provided with screwed hole, screw is threadeded with screwed hole and passed through rotating shaft,
On screw, rotating shaft is located between inner side and the torsion spring of locking plate torsion spring set, and locking groove is located at the side of rotating shaft, and connecting rod is solid
It is scheduled on the side stretching arm unit.
2. parabolic cylinder according to claim 1 stretches shaping mechanism it is characterised in that described parabolic cylinder stretches molding
By the use of driving means as core action element, driving means are connected with terminal extensions arm unit for mechanism, and driving means drive
Drive each to stretch arm unit to launch successively, after reaching specified location, locking plate enters locking groove and completes lock function.
3. parabolic cylinder according to claim 2 stretches shaping mechanism it is characterised in that described driving means are motors.
4. parabolic cylinder according to claim 1 stretches shaping mechanism it is characterised in that each stretching, extension arm unit described connects
Connect section and one angle of inclination is designed according to parabolic surface requirement, make to be in the extending arm of deployed condition in the way of more piece splicing
Approximation theory parabola, meanwhile, angle of inclination is adjusted according to parabola application demand.
5. parabolic cylinder according to claim 4 stretches shaping mechanism it is characterised in that described locking groove is with respect to stretching
The angle of exhibition arm unit plane is according to angle change.
6. parabolic cylinder according to claim 1 stretches shaping mechanism it is characterised in that described parabolic cylinder stretches molding
Mechanism controls the movement velocity of extending arm by driving means.
7. parabolic cylinder according to claim 1 stretches shaping mechanism it is characterised in that each stretching, extension arm unit described is equal
Devise locking mechanism, this locking mechanism limits the reversed turning of extending arm.
8. parabolic cylinder according to claim 1 stretches shaping mechanism it is characterised in that described parabolic cylinder stretches molding
Mechanism realizes the stretching, extension in rectilinear direction and direction of a curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986346.2A CN106410362A (en) | 2016-11-09 | 2016-11-09 | Stretching forming mechanism of parabolic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986346.2A CN106410362A (en) | 2016-11-09 | 2016-11-09 | Stretching forming mechanism of parabolic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410362A true CN106410362A (en) | 2017-02-15 |
Family
ID=59229796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610986346.2A Pending CN106410362A (en) | 2016-11-09 | 2016-11-09 | Stretching forming mechanism of parabolic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410362A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016634A (en) * | 2017-10-27 | 2018-05-11 | 上海卫星工程研究所 | A kind of passive unfolding and locking device of modularized compact type |
| CN108045598A (en) * | 2017-10-27 | 2018-05-18 | 上海卫星工程研究所 | A kind of passive unfolding and locking device of light-duty high rigidity of modularization |
| CN108832254A (en) * | 2018-05-25 | 2018-11-16 | 东南大学 | A kind of spaceborne parabolic-cylinder antenna extending arm |
| CN110646998A (en) * | 2019-08-23 | 2020-01-03 | 北京空间机电研究所 | Three-dimensional cylindrical lens hood capable of being unfolded with high folding ratio |
| CN114039213A (en) * | 2021-11-03 | 2022-02-11 | 安徽大学 | Unfolding mechanism of over-constrained rectangular pyramid modular parabolic cylinder antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428690A (en) * | 2008-12-18 | 2009-05-13 | 北京航空航天大学 | Swirl type triangle crossarm hinge space extending arm |
| CN103693212A (en) * | 2013-12-06 | 2014-04-02 | 上海卫星工程研究所 | Controlled-unfolding coiled stretching arm for unfolding satellite load |
| CN103742494A (en) * | 2014-01-08 | 2014-04-23 | 北京航空航天大学 | Interlocking and unlocking device for spatial extending arm |
| CN105564668A (en) * | 2016-01-22 | 2016-05-11 | 上海交通大学 | Coiling type telescopic arm capable of achieving segmental, sequential and progressive expanding |
-
2016
- 2016-11-09 CN CN201610986346.2A patent/CN106410362A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428690A (en) * | 2008-12-18 | 2009-05-13 | 北京航空航天大学 | Swirl type triangle crossarm hinge space extending arm |
| CN103693212A (en) * | 2013-12-06 | 2014-04-02 | 上海卫星工程研究所 | Controlled-unfolding coiled stretching arm for unfolding satellite load |
| CN103742494A (en) * | 2014-01-08 | 2014-04-23 | 北京航空航天大学 | Interlocking and unlocking device for spatial extending arm |
| CN105564668A (en) * | 2016-01-22 | 2016-05-11 | 上海交通大学 | Coiling type telescopic arm capable of achieving segmental, sequential and progressive expanding |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016634A (en) * | 2017-10-27 | 2018-05-11 | 上海卫星工程研究所 | A kind of passive unfolding and locking device of modularized compact type |
| CN108045598A (en) * | 2017-10-27 | 2018-05-18 | 上海卫星工程研究所 | A kind of passive unfolding and locking device of light-duty high rigidity of modularization |
| CN108045598B (en) * | 2017-10-27 | 2020-10-09 | 上海卫星工程研究所 | Modularized light high-rigidity passive unfolding locking device |
| CN108016634B (en) * | 2017-10-27 | 2021-06-29 | 上海卫星工程研究所 | Modularized compact passive unfolding locking device |
| CN108832254A (en) * | 2018-05-25 | 2018-11-16 | 东南大学 | A kind of spaceborne parabolic-cylinder antenna extending arm |
| CN108832254B (en) * | 2018-05-25 | 2019-12-17 | 东南大学 | Satellite-borne parabolic cylinder antenna extension arm |
| CN110646998A (en) * | 2019-08-23 | 2020-01-03 | 北京空间机电研究所 | Three-dimensional cylindrical lens hood capable of being unfolded with high folding ratio |
| CN114039213A (en) * | 2021-11-03 | 2022-02-11 | 安徽大学 | Unfolding mechanism of over-constrained rectangular pyramid modular parabolic cylinder antenna |
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Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |