CN207089691U - Parabola petal type rolls over extending apparatus - Google Patents
Parabola petal type rolls over extending apparatus Download PDFInfo
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- CN207089691U CN207089691U CN201720874497.9U CN201720874497U CN207089691U CN 207089691 U CN207089691 U CN 207089691U CN 201720874497 U CN201720874497 U CN 201720874497U CN 207089691 U CN207089691 U CN 207089691U
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Abstract
The utility model discloses parabola petal type to roll over extending apparatus.At present, large scale, high accuracy, high rigidity, high stability, the demand of light-weighted space folding and unfolding mechanism are more and more urgent.The utility model includes folded formation, montant and six connection rod sets.Folded formation includes base substrate and six folding exhibition parts.Folded formation, which has, deploys and folds two states.Under deployed condition, the inside and outside side of folded formation is parabola.Six folding exhibition parts are hinged with base substrate.Folding exhibition part includes five blades being hinged successively from the inside to the outside；The jointed shaft axis of adjacent blades overlaps with the two end point connecting line of adjacent blades medial surface intersection.The top of montant is fixed with base substrate, and montant axis overlaps with folding body axis.Connection rod set is made up of first connecting rod, second connecting rod, third connecting rod and fourth link；The rotary motion of linkage plane is converted into the spatial movement of blade by the utility model, folds and the process of expansion is very easy, and folding ratio is up to 0.4.
Description
Technical field
The utility model belongs to folding extending apparatus technical field, and in particular to a kind of parabola petal type rolls over extending apparatus.
Background technology
With the development of aerospace industry, some large-scale in-orbit structures can be applied in increasing aerospace engineering, to meet
Different space missions.However, due to the limitation of carrier rocket volume, the non-folding that can be transmitted into space opens up the size of structure
Mission requirements can not be met, therefore various types of aerospace folding and unfolding mechanisms are rapidly developed and applied.In space station, lead to
Believe in the space missions such as satellite platform, space telescope, earth observation, celestial body exploration, folding and unfolding mechanism is using quite varied.Space
Folding and unfolding mechanism plays irreplaceable role in aerospace engineering, such as folding exhibition solar panel, space station basis bone
Frame, space manipulator, space mast, heavy caliber folding exhibition antenna, large-scale flexible solar array support frame etc..As space is visited
The fast development of the space operations such as rope, earth observation, seafari and military surveillance and the demand of following complicated space task, greatly
Yardstick, high accuracy, high rigidity, high stability, the demand of light-weighted space folding and unfolding mechanism are more and more urgent.
Utility model content
The purpose of this utility model is to provide a kind of parabola petal type folding extending apparatus, can act as satellite antenna or too
Positive energy plate, have expansion and folding process stable.
The utility model includes folded formation, montant and six connection rod sets.Described folded formation includes base substrate and six
Folding exhibition part.Folded formation, which has, deploys and folds two states.Under deployed condition, the inside and outside side of folded formation is parabola.
The plane taken perpendicular to folded formation central axis is A planes.Base substrate medial surface is projected in A planes and obtained
To profile be put together by six congruent triangles.It is 60 ° that six triangles, which have the size at an angle,.Six sizes are
The summit at 60 ° of angles overlaps, and on the axis of folded formation.Size is that the opposite side at 60 ° of angles is a sides, and another two sides of triangle are distinguished
For b while and during c, b edge lengths are more than or equal to c edge lengths.B is in counter clockwise direction while in c or institute in all triangles
Have in triangle b while in c clockwise.It is being point K with intersection point during b to make a in six trianglesi, i=1,
2,…6.Point KiCircumferentially order arranges.It is point K to have an end pointsiAnother end points on that a side be Ni.If same triangle
B is in counter clockwise direction while in c in shape, then point K2In point K1Counter clockwise direction on.If b is while in c in same triangle
Clockwise, then point K2In point K1Clockwise.
Folded formation is projected in A planes, and the circular S that is projected as of folded formation medial surface opening justifies.Base substrate is projected
In six a while to b side extend to S circle intersect, obtain six intersection point Fi, i=1,2 ... 6.Point FiWith point KiSame
On bar straight line.S is justified into six deciles, obtains six Along ent Hi, i=1,2 ... 6.Point HeIt is arranged on point FeWith point Fe+1Between, e=
1,2,…5。
Point HfWith point KfLine be line Vf, point HfWith point Hf+1Between circular arc be line Xf, point Kf+1The a sides of place triangle
For line Yf, point KfWith point Nf+1For line Zf, f=1,2 ... 5.Point H6With point K6Line be line V6, point H6With point H1Between circular arc
For line X6, point K1The a sides of place triangle are line Y6, point K6With point N1For line Z6。
Line Vf, line Vf+1, line Xf, line YfWith line ZfForm the projection of facial contour on the inside of a folding exhibition part.Line V6, line V1, line
X6, line Y6With line Z6Form the projection of facial contour on the inside of a folding exhibition part.Six described folding exhibition parts are hinged with base substrate,
The line of facial contour two-end-point is respectively superposed on the inside of six roots of sensation jointed shaft axis base substrate corresponding with six a sides.
Described folding exhibition part includes five blades being hinged successively from the inside to the outside；The jointed shaft axis of adjacent blades with it is adjacent
The two end point connecting line of blade medial surface intersection overlaps.
The top of the montant is fixed with base substrate, and montant axis overlaps with folding body axis.Described connection rod set
It is made up of first connecting rod, second connecting rod, third connecting rod and fourth link；The outer end of the first connecting rod and the bottom of second connecting rod
It is fixed.The top of second connecting rod and the bottom of third connecting rod form revolute pair, the common axis of the revolute pair and second connecting rod
Axis overlaps.The top of third connecting rod and the outer end of fourth link form the rotation using the axis of fourth link as common axis
It is secondary.The inner bottom with montant of six roots of sensation first connecting rod is fixed.The inner of six roots of sensation fourth link is located at outermost lateral lobe with six
The lateral surface of piece is fixed respectively.
Described six roots of sensation second connecting rod drives by motor.
The medial surface profile that projects to obtain in A planes in m-th of folding exhibition part positioned at most inner blade is by four
Line segment forms, wherein both threads section and line YmAnd line ZmIt is completely superposed, m=1,2 ... 6.
By the axis projections of six roots of sensation first connecting rod in A planes, six roots of sensation connecting rod projection line Q is obtainedi, i=1,2 ... 6.Point Kf
With point Kf+1Line be line Rf, f=1,2 ... 5.Point K6With point K1Line be line R6.Connecting rod projection line QiIt is respectively perpendicular and waits
Separated time Ri.Connecting rod projection line QiFourth link in connection rod set III where corresponding first connecting rod is inner and outward flange is in A planes
Be projected as line Xp-2Blade fix, 3≤p≤6.Connecting rod projection line Q1In the corresponding place connection rod set III of first connecting rod 3
Double leval jib 6 is inner to be projected as line X with outward flange in A planes5Blade fix.Connecting rod projection line Q2Corresponding first connecting rod
Fourth link in place connection rod set III is inner and outward flange is projected as line X in A planes6Blade fix.
The angle that projection of the axis of the first connecting rod with the axis of corresponding second connecting rod in A planes is formed is 5
~45 °.
The axis of the first connecting rod is in the axis by corresponding second connecting rod and the projection in the plane of A planes
The angle formed with the axis of corresponding second connecting rod is 10~50 °.
The utility model has an advantageous effect in that：
1st, the rotary motion of linkage plane is converted into the spatial movement of blade by the utility model, the process for folding and deploying
It is very easy.
2nd, the utility model folding ratio folds ratio, space profit up to 0.4 compared to existing space folding and unfolding mechanism 0.5~0.9
It is higher with rate, huge help can be brought to aerospace engineering.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is base substrate in the utility model, montant, single folding exhibition part and the schematic diagram of connection rod set assembling；
Fig. 3 is the perspective view of folded formation in the utility model；
Fig. 4 is the perspective view of folded formation and first connecting rod in the utility model；
Fig. 5 is the front view after the utility model collapses；
Fig. 6 is the top view after the utility model collapses.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As illustrated in fig. 1 and 2, parabola petal type folding extending apparatus, including folded formation I, montant II and six connection rod sets III.Folding
Stack I includes base substrate 1 and six folding exhibition parts 2.Folded formation I, which has, deploys and folds two states.Under deployed condition, fold
The inside and outside side of body I is parabola.
As shown in Figure 1,2 and 3, the central axis of base substrate 1 overlaps with the axis of folded formation I.Take perpendicular to folded formation I
One plane of central axis is A planes.The medial surface of base substrate 1 is projected in A planes, obtained profile is by six congruences
Triangle be put together.It is 60 ° that six triangles, which have the size at an angle,.Size is that the summit at 60 ° of angles overlaps, and is being rolled over
On the axis of stack I.Six sizes are that the opposite side at 60 ° of angles is a sides, and another two of triangle is when being respectively b and c sides, b edge lengths
More than or equal to c edge lengths.In all triangles b in counter clockwise direction while in c or in all triangles b sides in c
Side is clockwise.It is being point K with intersection point during b to make a in six trianglesi, i=1,2 ... 6.Point KiCircumferentially order
Arrangement.It is point K to have an end pointsiAnother end points on that a side be Ni.If b is counterclockwise while in c in same triangle
On direction, then point K2In point K1Counter clockwise direction on.If in same triangle b while in c clockwise, point K2
In point K1Clockwise.
Folded formation I is projected in A planes, the circular S that is projected as of the medial surface opening of folded formation I justifies.By base substrate 1
Six a in projection side while to b extends to intersects with S circles, obtains six intersection point Fi, i=1,2 ... 6.Point FiWith point Ki
On same straight line.S is justified into six deciles, obtains six Along ent Hi, i=1,2 ... 6.Point HeIt is arranged on point FeWith point Fe+1It
Between, e=1,2 ... 5.
Point HfWith point KfLine be line Vf, point HfWith point Hf+1Between circular arc be line Xf, point Kf+1The a sides of place triangle
For line Yf, point KfWith point Nf+1For line Zf, f=1,2 ... 5.Point H6With point K6Line be line V6, point H6With point H1Between circular arc
For line X6, point K1The a sides of place triangle are line Y6, point K6With point N1For line Z6。
Line Vf, line Vf+1, line Xf, line YfWith line ZfForm the projection of the profile of a folding exhibition medial surface of part 2.Line V6, line V1、
Line X6, line Y6With line Z6Form the projection of the profile of a folding exhibition medial surface of part 2.Six folding exhibition parts 2 are be hinged with base substrate 1,
The line of the six roots of sensation jointed shaft axis inner side facial contour two-end-point of base substrate 1 corresponding with six a sides is respectively superposed.
Folding exhibition part 2 includes five blades being hinged successively from the inside to the outside；The jointed shaft axis and adjacent blades of adjacent blades
The two end point connecting line of medial surface intersection overlaps.Medial surface in m-th of folding exhibition part 2 positioned at most inner blade projects in A planes
Obtained profile is made up of four line segments.Wherein both threads section and line YmAnd line ZmIt is completely superposed, m=1,2 ... 6.
The top of montant II is fixed with base substrate 1, and the axis of montant II overlaps with the axis of folded formation I.Connection rod set III by
First connecting rod 3, second connecting rod 4, third connecting rod 5 and fourth link 6 form；The outer end of first connecting rod 3 and the bottom of second connecting rod 4
It is fixed.The top of second connecting rod 4 forms revolute pair, common axis and the second connecting rod 4 of the revolute pair with the bottom of third connecting rod 5
Axis overlap.The top of third connecting rod 5 is formed using the axis of fourth link 6 as common axis with the outer end of fourth link 6
Revolute pair.The inner bottom with montant II of six roots of sensation first connecting rod 3 is fixed.The inner of six roots of sensation fourth link 6 is located at six
The lateral surface of outermost blade is fixed respectively.Six roots of sensation third connecting rod 5 drives by motor, motor output shaft axis and second connecting rod
4 axis overlap.
As shown in Fig. 1,2 and 4, by the axis projections of six roots of sensation first connecting rod 3 in A planes, six roots of sensation connecting rod projection line is obtained
Qi, i=1,2 ... 6.Point KfWith point Kf+1Line be line Rf, f=1,2 ... 5.Point K6With point K1Line be line R6.Connecting rod is thrown
Hachure QiIt is respectively perpendicular and bisector Ri.Connecting rod projection line QiFourth link 6 in the corresponding place connection rod set III of first connecting rod 3
It is inner to be projected as line X in A planes with outward flangep-2Blade fix, 3≤p≤6.Connecting rod projection line Q1Corresponding first connects
Fourth link 6 in the place connection rod set III of bar 3 is inner and outward flange is projected as line X in A planes5Blade fix.Connecting rod
Projection line Q2The inner of fourth link 6 in the corresponding place connection rod set III of first connecting rod 3 is projected as with outward flange in A planes
Line X6Blade fix.
The angle that projection of the axis of first connecting rod 3 with the axis of corresponding second connecting rod 4 in A planes is formed is 25 °.
The axis of first connecting rod 3 is in the axis by corresponding second connecting rod 4 and the projection and corresponding second in the plane of A planes
The angle that the axis of connecting rod 4 is formed is 30 °.
Operation principle of the present utility model is as follows：
As it can be seen in figures 5 and 6, the process of gathering is as follows：Motor rotates forward, and driving six roots of sensation second connecting rod 4 rotates forward simultaneously, and first
Blade, the second blade, third blade, quaterfoil and the 5th blade are inwardly overturn.Complete gathering process.
Expansion process is as follows：Motor reversal, driving six roots of sensation second connecting rod 4 rotate backward simultaneously, the first blade, the second leaf
Piece, third blade, quaterfoil and the 5th blade flip over.Complete expansion process.
Claims (6)
1. parabola petal type rolls over extending apparatus, including folded formation, montant and six connection rod sets；Described folded formation includes bottom base
Body and six folding exhibition parts；It is characterized in that：Folded formation, which has, deploys and folds two states；Under deployed condition, folded formation it is interior,
Lateral surface is parabola；
The central axis of the base substrate overlaps with the axis of folded formation；Take perpendicular to fold body axis a plane be A
Plane；Base substrate medial surface is projected in the profile obtained in A planes and is put together by six triangles；Six triangles have
The size at one angle is 60 °；Six sizes are that the summit at 60 ° of angles overlaps, and on the axis of folded formation；Size is 60 ° of angles
Opposite side is a sides, and another two of triangle is when being respectively b and c sides, b edge lengths >=c edge lengths；B sides are in c in all triangles
While counter clockwise direction on or all triangles in b while on c sides clockwise；A is made in six triangles while with b
Intersection point be point Ki, i=1,2 ... 6；Point KiCircumferentially order arranges；It is point K to have an end pointsiThat a side another end
Point is Ni；If b is in counter clockwise direction while in c in same triangle, point K2In point K1Counter clockwise direction on；It is if same
In triangle b while in c clockwise, then point K2In point K1Clockwise；
Folded formation is projected in A planes, and the circular S that is projected as of folded formation medial surface opening justifies；During base substrate is projected
Six a sides while to b extend to intersects with S circles, obtains six intersection point Fi, i=1,2 ... 6；Point FiWith point KiIt is straight in same
On line；S is justified into six deciles, obtains six Along ent Hi, i=1,2 ... 6；Point HeIt is arranged on point FeWith point Fe+1Between, 1≤e≤
5；
Point HfWith point KfLine be line Vf, point HfWith point Hf+1Between circular arc be line Xf, point Kf+1The a sides of place triangle are line
Yf, point KfWith point Nf+1For line Zf, 1≤f≤5；Point H6With point K6Line be line V6, point H6With point H1Between circular arc be line X6,
Point K1The a sides of place triangle are line Y6, point K6With point N1For line Z6；
Line Vf, line Vf+1, line Xf, line YfWith line ZfForm the projection of facial contour on the inside of a folding exhibition part；Line V6, line V1, line X6, line Y6
With line Z6Form the projection of facial contour on the inside of a folding exhibition part；Six described folding exhibition parts are hinged with base substrate, six roots of sensation hinge
The line of facial contour two-end-point is respectively superposed on the inside of spindle axis base substrate corresponding with six a sides；
Described folding exhibition part includes five blades being hinged successively from the inside to the outside；The jointed shaft axis and adjacent blades of adjacent blades
The two end point connecting line of medial surface intersection overlaps；
The top of the montant is fixed with base substrate, and montant axis overlaps with folding body axis；Described connection rod set is by
One connecting rod, second connecting rod, third connecting rod and fourth link composition；The outer end of the first connecting rod and the bottom of second connecting rod are consolidated
It is fixed；The top of second connecting rod and the bottom of third connecting rod form revolute pair, the common axis of the revolute pair and the axle of second connecting rod
Line overlaps；The top of third connecting rod and the outer end of fourth link form the revolute pair using the axis of fourth link as common axis；
The inner bottom with montant of six roots of sensation first connecting rod is fixed；The inner of six roots of sensation fourth link is with six positioned at outermost blade
Lateral surface is fixed respectively.
2. parabola petal type according to claim 1 rolls over extending apparatus, it is characterised in that：Described six roots of sensation second connecting rod is equal
Driven by motor.
3. parabola petal type according to claim 1 rolls over extending apparatus, it is characterised in that：M-th of folding exhibition part middle position
It is made up of in the profile that the medial surface of most inner blade projects to obtain in A planes four line segments, wherein both threads section and line Ym
And line ZmIt is completely superposed.
4. parabola petal type according to claim 1 rolls over extending apparatus, it is characterised in that：By the axis of six roots of sensation first connecting rod
It is projected in A planes, obtains six roots of sensation connecting rod projection line Qi, i=1,2 ... 6；Point KfWith point Kf+1Line be line Rf, f=1,
2,…5；Point K6With point K1Line be line R6；Connecting rod projection line QiIt is respectively perpendicular and bisector Ri；Connecting rod projection line QiIt is corresponding
Fourth link in connection rod set III where first connecting rod is inner and outward flange is projected as line X in A planesp-2Blade fix,
3≤p≤6；Connecting rod projection line Q1Put down with outward flange in A the inner of fourth link 6 in the corresponding place connection rod set III of first connecting rod 3
Line X is projected as on face5Blade fix；Connecting rod projection line Q2Fourth link in connection rod set III where corresponding first connecting rod
It is inner to be projected as line X in A planes with outward flange6Blade fix.
5. parabola petal type according to claim 1 rolls over extending apparatus, it is characterised in that：The axis of the first connecting rod with
The angle that projection of the axis of corresponding second connecting rod in A planes is formed is 5~45 °.
6. parabola petal type according to claim 1 rolls over extending apparatus, it is characterised in that：The axis of the first connecting rod exists
Formed by the axis and the projection in the plane of A planes of corresponding second connecting rod with the axis of corresponding second connecting rod
Angle is 10~50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874497.9U CN207089691U (en) | 2017-07-19 | 2017-07-19 | Parabola petal type rolls over extending apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874497.9U CN207089691U (en) | 2017-07-19 | 2017-07-19 | Parabola petal type rolls over extending apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207089691U true CN207089691U (en) | 2018-03-13 |
Family
ID=61544611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720874497.9U Withdrawn - After Issue CN207089691U (en) | 2017-07-19 | 2017-07-19 | Parabola petal type rolls over extending apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207089691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416232A (en) * | 2017-07-19 | 2017-12-01 | 浙江理工大学 | A kind of parabola petal type rolls over extending apparatus |
| CN109383897A (en) * | 2018-10-18 | 2019-02-26 | 天津大学 | A kind of symmetrical telescopic box-shaped structure in single-degree-of-freedom face |
-
2017
- 2017-07-19 CN CN201720874497.9U patent/CN207089691U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416232A (en) * | 2017-07-19 | 2017-12-01 | 浙江理工大学 | A kind of parabola petal type rolls over extending apparatus |
| CN107416232B (en) * | 2017-07-19 | 2023-05-16 | 浙江理工大学 | Parabolic petal type folding and unfolding device |
| CN109383897A (en) * | 2018-10-18 | 2019-02-26 | 天津大学 | A kind of symmetrical telescopic box-shaped structure in single-degree-of-freedom face |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230516 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230516 |
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| AV01 | Patent right actively abandoned |