CN114865276A - Space developable parabolic antenna back frame based on thick plate paper folding structure - Google Patents
Space developable parabolic antenna back frame based on thick plate paper folding structure Download PDFInfo
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- CN114865276A CN114865276A CN202210372720.5A CN202210372720A CN114865276A CN 114865276 A CN114865276 A CN 114865276A CN 202210372720 A CN202210372720 A CN 202210372720A CN 114865276 A CN114865276 A CN 114865276A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
Abstract
The utility model provides a space can expand parabolic antenna back of body frame based on thick plate paper folding structure, relates to aerospace equipment field, to the problem that traditional parabolic antenna folded and expanded inefficiency, this application will fold paper structure and modular design theory and introduce the design of space can expand parabolic antenna back of body frame, can expand antenna back of body frame and be through the single degree of freedom thick plate that hinged joint constitutes can expand the mechanism, different thick plate paper folding modules are connected fixedly according to given mode, the drive can realize tensile and curved surface deformation. The flexible cable net covers the surface of the antenna back frame, so that the folding, folding and deformation of the whole parabolic antenna back frame can be realized. The initial state of the back frame is the minimum state of the state, and the occupied space during the launching can be saved. After the antenna is transmitted to the space working position, the unfolding of the antenna back frame is realized through the driving of the motor, the cable net forming of the surface paraboloid is realized, and the folding and unfolding efficiency of the antenna can be effectively improved.
Description
Technical Field
The invention relates to the field of aerospace equipment, in particular to a space developable parabolic antenna back frame based on a thick plate paper folding structure.
Background
The application requirement of the space-expandable parabolic antenna with a large folding-unfolding ratio in space missions is more and more urgent, the traditional parabolic antenna is low in folding-unfolding efficiency and fixed in layout, and the requirement of executing multiple tasks in different complex environments such as current real battles, investigation and observation is more and more difficult to meet. Due to the limitations of the emission space and load, the folded and unfolded configuration and the manufacturing assembly mode of the parabolic antenna are key issues to be solved in the design process, which promotes the development of a space-deployable parabolic antenna. The paper folding structure has the characteristics of strong folding and unfolding capacity, simple manufacturing and assembling process and the like, provides a novel idea for the innovative design of a plurality of engineering unfolding structures, and further improves the application field of the unfolding structures based on the modular design of the paper folding structure.
Disclosure of Invention
The purpose of the invention is: aiming at the problem of low folding and unfolding efficiency of the traditional parabolic antenna, the space-developable parabolic antenna back frame based on the thick-plate paper folding structure is provided.
The technical scheme adopted by the invention to solve the technical problems is as follows:
a space developable paraboloid antenna back frame based on a thick plate paper folding structure comprises a plurality of thick plate paper folding A modules 3 and a plurality of thick plate paper folding B modules 4;
the thick plate paper folding A module 3 comprises a first quadrilateral thick plate unit 5, a second quadrilateral thick plate unit 8, a first triangular thick plate unit 6, a second triangular thick plate unit 7, a third triangular thick plate unit 9 and a fourth triangular thick plate unit 10, wherein the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8 are trapezoidal, and the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 are right-angled triangles;
one side of the first quadrilateral thick plate unit 5 is hinged with the bevel edge of the first triangular thick plate unit 6;
the right-angle side of the first triangular thick plate unit 6 is hinged with the right-angle side of the second triangular thick plate unit 7;
the bevel edge of the second triangular thick plate unit 7 is hinged with one edge of the second quadrilateral thick plate unit 8;
the other side of the second quadrilateral thick plate unit 8 is hinged with the bevel edge of the third triangular thick plate unit 9;
the right-angle side of the third triangular thick plate unit 9 is hinged with the right-angle side of the fourth triangular thick plate unit 10;
the bevel edge of the fourth triangular thick plate unit 10 is hinged with the other edge of the first quadrilateral thick plate unit 5;
the first quadrangular thick plate unit 5, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the second quadrangular thick plate unit 8, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 form a closed loop;
the thick plate folded paper A module 3 is unfolded into a rectangle;
when the thick plate origami A module 3 is folded, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 are arranged between the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8;
the thick plate origami B module 4 includes: the third quadrangular thick plate unit 11 and the fourth quadrangular thick plate unit 14 are trapezoidal, and the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are right-angled triangles;
the lower bottom of the third quadrangular thick plate unit 11 is hinged with the lower bottom of the fourth quadrangular thick plate unit 14;
two sides of the third quadrilateral thick plate unit 11 are hinged with the bevel edge of the fifth triangular thick plate unit 12 and the bevel edge of the sixth triangular thick plate unit 13 respectively;
two sides of the fourth quadrilateral thick plate unit 14 are hinged with the bevel edge of the seventh triangular thick plate unit 15 and the bevel edge of the eighth triangular thick plate unit 16 respectively;
the thick plate folded paper B module 4 is unfolded into a rectangle;
when the thick plate origami B module 4 is folded, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are not arranged between the third quadrangular thick plate unit 11 and the fourth quadrangular thick plate unit 14;
when the thick plate paper folding A module 3 and the thick plate paper folding B module 4 are folded, the thick plate paper folding B module 4 is inserted between the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8;
the third triangular thick plate unit 9 is parallel to the first quadrangular thick plate unit 5 or the second quadrangular thick plate unit 8, i.e., the side a;
the side of the fourth triangular thick-plate unit 10 parallel to the bottom side of the first quadrangular thick-plate unit 5 or the second quadrangular thick-plate unit 8, i.e., the side B;
the side of the fifth triangular thick-plate unit 12 parallel to the bottom side of the third quadrangular thick-plate unit 11 or the fourth quadrangular thick-plate unit 14, i.e., the side C;
the side of the sixth triangular thick-plate unit 13 parallel to the bottom side of the third quadrangular thick-plate unit 11 or the fourth quadrangular thick-plate unit 14, i.e., the side D;
the A side is coincided with the D side, the B side is coincided with the C side, the third triangular thick plate unit 9 is fixedly connected with the coincided part of the sixth triangular thick plate unit 13, and the coincided part of the fourth triangular thick plate unit 10 is fixedly connected with the coincided part of the fifth triangular thick plate unit 12;
the lower bottom of a first quadrilateral thick plate unit 5 in the thick plate paper folding A module 3 is hinged with the lower bottom of a second quadrilateral thick plate unit 8 in the other thick plate paper folding A module 3;
the side of the fifth triangular thick plate unit 12 in the thick plate paper folding B module 4, which is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, is the side E;
the sixth triangular thick plate unit 13 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, namely, the F side;
the seventh triangular thick plate unit 15 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrilateral thick plate unit 11 or the fourth quadrilateral thick plate unit 14, namely a G side;
the eighth triangular thick plate unit 16 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, namely, the H side;
the edge E in the thick plate paper folding B module 4 is hinged with the edge F in the other thick plate paper folding B module 4;
the G edge of the thick plate paper folding B module 4 is hinged with the H edge of the other thick plate paper folding B module 4.
Further, the thickness parameters of the first quadrilateral thick plate unit 5, the second quadrilateral thick plate unit 8, the third quadrilateral thick plate unit 11 and the fourth quadrilateral thick plate unit 14 are equal.
Further, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are matched with each other to control the unfolding state of the antenna back frame.
Furthermore, the antenna back frame is of a stepped inclined plane structure;
the geometric dimension parameters of the first quadrilateral thick plate unit 5, the second quadrilateral thick plate unit 8, the third quadrilateral thick plate unit 11, the fourth quadrilateral thick plate unit 14, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 change along with the position of the row, and the dimension parameters of the thick plate units in the same row are the same.
Further, the degree of freedom of the antenna back frame is 1.
Further, the geometric dimension parameters of the first quadrangular thick plate unit 5, the second quadrangular thick plate unit 8, the third quadrangular thick plate unit 11, the fourth quadrangular thick plate unit 14, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are determined according to the curvature of the target parabolic antenna back frame.
The invention has the beneficial effects that:
in the design of this application with paper folding structure and modularized design theory introduction space developable parabolic antenna back of the body frame, but the antenna back of the body frame that can expand is the mechanism that can expand of a single degree of freedom thick plate of constituteing through hinged joint, and different thick plate paper folding modules are connected fixedly according to given mode, and the drive can realize tensile and curved surface deformation. The flexible cable net covers the surface of the antenna back frame, so that the folding, folding and deformation of the whole parabolic antenna back frame can be realized. The initial state of the back frame is the minimum state of the state, and the occupied space during the launching can be saved. After the antenna is transmitted to the space working position, the unfolding of the antenna back frame is realized through the driving of the motor, the cable net forming of the surface paraboloid is realized, and the folding and unfolding efficiency of the antenna can be effectively improved.
The invention has simple structure and larger folding, is suitable for the design of space parabolic antenna back frames with different forms, has more convenient production and assembly process, is suitable for large-scale production and manufacture and has low manufacturing cost. And the modular design is adopted, so that the principle is simple and convenient to control.
Drawings
FIG. 1 is a schematic view of a space developable parabolic antenna back frame with a thick plate paper folding structure;
FIG. 2 is a front view of a space developable parabolic antenna back frame of a thick plate paper folding structure;
FIG. 3 is a schematic view of a plank folding module a;
FIG. 4 is an expanded view of the thick plate paper folding module a;
FIG. 5 is a schematic view of a plank folding module b;
FIG. 6 is an expanded view of the thick plate paper folding module b;
FIG. 7 is a schematic view of the assembly of the thick plate origami module a and the thick plate origami module b;
FIG. 8 is a schematic view of the assembly of the thick plate origami module a and the thick plate origami module b;
FIG. 9 is a schematic view illustrating a state where the step slope structure of the thick plate unit is engaged with an adjacent thick plate unit;
fig. 10 is a schematic view of a folded state of the space-developable parabolic antenna back frame with a thick-plate paper-folding structure.
Parabolic cable net (1), parabolic antenna back frame (2) capable of being unfolded by thick plate paper folding structure space, thick plate paper folding module a (3), thick plate paper folding module b (4), quadrilateral thick plate unit a (5), triangular thick plate unit a (6), triangular thick plate unit b (7), quadrilateral thick plate unit b (8), triangular thick plate unit c (9), triangular thick plate unit d (10), quadrilateral thick plate unit c (11), triangular thick plate unit e (12), triangular thick plate unit f (13), quadrilateral thick plate unit d (14), triangular thick plate unit g (15), triangular thick plate unit h (16), triangular thick plate unit a (17), triangular thick plate unit b (18), form control thick plate unit (19), form control triangular thick plate unit (20), quadrilateral thick plate paper folding module a-1(21), the paper folding module for the thick plates comprises a thick plate paper folding module a-2(22), a thick plate paper folding module a-3(23), a thick plate paper folding module b-1(24), a thick plate paper folding module b-2(25), a thick plate paper folding module b-3(26) and a thick plate paper folding module b-4 (27).
Detailed Description
It should be noted that, in the present invention, the embodiments disclosed in the present application may be combined with each other without conflict.
The first embodiment is as follows: specifically describing the present embodiment with reference to fig. 1, the spatial developable parabolic antenna back frame based on the thick-plate paper folding structure in the present embodiment includes a plurality of thick-plate paper folding a modules 3 and a plurality of thick-plate paper folding B modules 4;
the thick plate paper folding A module 3 comprises a first quadrilateral thick plate unit 5, a second quadrilateral thick plate unit 8, a first triangular thick plate unit 6, a second triangular thick plate unit 7, a third triangular thick plate unit 9 and a fourth triangular thick plate unit 10, wherein the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8 are trapezoidal, and the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 are right-angled triangles;
one side of the first quadrilateral thick plate unit 5 is hinged with the bevel edge of the first triangular thick plate unit 6;
the right-angle side of the first triangular thick plate unit 6 is hinged with the right-angle side of the second triangular thick plate unit 7;
the bevel edge of the second triangular thick plate unit 7 is hinged with one edge of the second quadrilateral thick plate unit 8;
the other side of the second quadrilateral thick plate unit 8 is hinged with the bevel edge of the third triangular thick plate unit 9;
the right-angle side of the third triangular thick plate unit 9 is hinged with the right-angle side of the fourth triangular thick plate unit 10;
the bevel edge of the fourth triangular thick plate unit 10 is hinged with the other edge of the first quadrilateral thick plate unit 5;
the first quadrangular thick plate unit 5, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the second quadrangular thick plate unit 8, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 form a closed loop;
the thick plate folded paper A module 3 is unfolded to be rectangular;
when the thick plate paper folding A module 3 is folded, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9 and the fourth triangular thick plate unit 10 are arranged between the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8;
the thick plate origami B module 4 includes: the third quadrangular thick plate unit 11 and the fourth quadrangular thick plate unit 14 are trapezoidal, and the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are right-angled triangles;
the lower bottom of the third quadrangular thick plate unit 11 is hinged with the lower bottom of the fourth quadrangular thick plate unit 14;
two sides of the third quadrilateral thick plate unit 11 are hinged with the bevel edge of the fifth triangular thick plate unit 12 and the bevel edge of the sixth triangular thick plate unit 13 respectively;
two sides of the fourth quadrilateral thick plate unit 14 are hinged with the bevel edge of the seventh triangular thick plate unit 15 and the bevel edge of the eighth triangular thick plate unit 16 respectively;
the thick plate folded paper B module 4 is unfolded to be rectangular;
when the thick plate origami B module 4 is folded, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 are not arranged between the third quadrangular thick plate unit 11 and the fourth quadrangular thick plate unit 14;
when the thick plate paper folding A module 3 and the thick plate paper folding B module 4 are folded, the thick plate paper folding B module 4 is inserted between the first quadrilateral thick plate unit 5 and the second quadrilateral thick plate unit 8;
the third triangular thick plate unit 9 is parallel to the first quadrangular thick plate unit 5 or the second quadrangular thick plate unit 8, i.e., the side a;
the side of the fourth triangular thick-plate unit 10 parallel to the bottom side of the first quadrangular thick-plate unit 5 or the second quadrangular thick-plate unit 8, i.e., the side B;
the side of the fifth triangular thick-plate unit 12 parallel to the bottom side of the third quadrangular thick-plate unit 11 or the fourth quadrangular thick-plate unit 14, i.e., the side C;
the side of the sixth triangular thick-plate unit 13 parallel to the bottom side of the third quadrangular thick-plate unit 11 or the fourth quadrangular thick-plate unit 14, i.e., the side D;
the A side is coincided with the D side, the B side is coincided with the C side, the third triangular thick plate unit 9 is fixedly connected with the coincided part of the sixth triangular thick plate unit 13, and the coincided part of the fourth triangular thick plate unit 10 is fixedly connected with the coincided part of the fifth triangular thick plate unit 12;
the lower bottom of a first quadrilateral thick plate unit 5 in the thick plate paper folding A module 3 is hinged with the lower bottom of a second quadrilateral thick plate unit 8 in the other thick plate paper folding A module 3;
the side of the fifth triangular thick plate unit 12 in the thick plate paper folding B module 4, which is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, is the side E;
the sixth triangular thick plate unit 13 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, namely, the F side;
the seventh triangular thick plate unit 15 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, namely, the G side;
the eighth triangular thick plate unit 16 in the thick plate folded paper B module 4 is perpendicular to the lower bottom of the third quadrangular thick plate unit 11 or the fourth quadrangular thick plate unit 14, namely, the H side;
the edge E in the thick plate paper folding B module 4 is hinged with the edge F in the other thick plate paper folding B module 4;
the G edge of the thick plate paper folding B module 4 is hinged with the H edge of the other thick plate paper folding B module 4.
The embodiment is described with reference to fig. 1 to 7, and the space-expandable parabolic antenna back frame of the thick plate paper folding structure comprises a thick plate paper folding module a, a thick plate paper folding module b and a flexible parabolic cable net, wherein the thick plate paper folding module a and the thick plate paper folding module b are assembled in series, the flexible parabolic cable net is arranged on the surface of the thick plate paper folding structure, the thick plate paper folding modules are all foldable and expandable, and the whole antenna back frame is driven to expand and contract through series linkage, so that the parabolic cable net is stretched and curved surface deformation is realized.
The second embodiment is as follows: the present embodiment is further described with respect to the first embodiment, and the difference between the first embodiment and the first embodiment is that the thickness parameters of the first quadrangular thick plate unit 5, the second quadrangular thick plate unit 8, the third quadrangular thick plate unit 11, and the fourth quadrangular thick plate unit 14 are equal.
The third concrete implementation mode: the present embodiment is further described with reference to the first embodiment, and the difference between the present embodiment and the first embodiment is that the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15, and the eighth triangular thick plate unit 16 cooperate with each other to control the unfolding configuration of the antenna back frame.
The fourth concrete implementation mode: the present embodiment is a further description of the first embodiment, and the difference between the present embodiment and the first embodiment is that the antenna back frame is a stepped slope structure;
the geometric dimension parameters of the first quadrilateral thick plate unit 5, the second quadrilateral thick plate unit 8, the third quadrilateral thick plate unit 11, the fourth quadrilateral thick plate unit 14, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15 and the eighth triangular thick plate unit 16 change along with the position of the row, and the dimension parameters of the thick plate units in the same row are the same.
The fifth concrete implementation mode is as follows: this embodiment mode is a further description of the first embodiment mode, and is different from the first embodiment mode in that the degree of freedom of the antenna backing is 1.
The sixth specific implementation mode: the present embodiment is further described with respect to the first embodiment, and the difference between the first embodiment and the first embodiment is that the geometric dimension parameters of the first quadrangular thick plate unit 5, the second quadrangular thick plate unit 8, the third quadrangular thick plate unit 11, the fourth quadrangular thick plate unit 14, the first triangular thick plate unit 6, the second triangular thick plate unit 7, the third triangular thick plate unit 9, the fourth triangular thick plate unit 10, the fifth triangular thick plate unit 12, the sixth triangular thick plate unit 13, the seventh triangular thick plate unit 15, and the eighth triangular thick plate unit 16 are determined according to the curvature of the target parabolic antenna back frame.
The parabolic cable net is characterized by comprising a thick plate paper folding module a, a thick plate paper folding module b and a parabolic cable net, wherein the thick plate paper folding module a and the thick plate paper folding module b are assembled in series, the parabolic cable net is arranged on the surface of a thick plate paper folding structure, the thick plate paper folding modules are foldable and unfoldable, the whole antenna back frame is driven to unfold and fold through series linkage, and the parabolic cable net is stretched and curved surface deformation is realized. The thick plate paper folding module a comprises 2 quadrilateral thick plate units and 4 triangular thick plate units, the quadrilateral thick plate units are identical in geometric dimension, and the triangular thick plate units correspond to the quadrilateral thick plate units in geometric dimension. The thick plate units are sequentially hinged to form a closed loop, the hinged positions of the triangular thick plate units are located on two sides of the plate surface of the unit, the hinged positions of the quadrilateral thick plate units are located on one side of the plate surface, hinges are not arranged among the quadrilateral thick plate units, and the upper surface of the thick plate paper folding module a is in a planar state after being completely unfolded. The thick plate paper folding module b comprises 2 quadrilateral thick plate units and 4 triangular thick plate units, the quadrilateral thick plate units have the same geometric dimension, and the geometric dimension of the triangular thick plate units corresponds to that of the quadrilateral thick plate units. The triangular thick plate units are hinged with the quadrilateral thick plate units, the quadrilateral thick plate units are hinged with each other, the hinged positions are located on two sides of the plate surface of the units, and the upper surface of the thick plate paper folding module b is in a planar state after being completely unfolded. The thick plate paper folding module a and the thick plate paper folding module b are assembled in series, thick plate units at corresponding positions are fixedly bonded, the lengths of the coincident side lines are equal, and the angles are correspondingly equal. The thick plate units which are mutually assembled, bonded and fixed have the same structural form, the assembling surfaces are completely overlapped, and the thickness difference value between the panels is equal to the thickness parameter of the quadrilateral thick plate unit. The thick plate units are matched with the adjacent thick plate units through the stepped inclined surface structure to control the unfolding state of the antenna back frame. The space-developable paraboloidal antenna back frame of the thick plate paper folding structure can be completely folded. The geometric dimension parameters of the thick plate paper folding modules change along with the position change of the row, and the dimension parameters of the module units in the same row are the same. The degree of freedom of the space developable paraboloidal antenna back frame of the thick plate paper folding structure is 1.
Example (b):
the thick plate paper folding module a-3 of the embodiment comprises a quadrangular thick plate unit a-5, a quadrangular thick plate unit b-8, 4 triangular thick plate units a-6, a triangular thick plate unit b-7, a triangular thick plate unit c-9 and a triangular thick plate unit d-10, wherein the quadrangular thick plate unit a-5 is hinged with the triangular thick plate unit a-6, the triangular thick plate unit a-6 is hinged with the triangular thick plate unit b-7, the triangular thick plate unit b-7 is hinged with the quadrangular thick plate unit b-8, the quadrangular thick plate unit b-8 is hinged with the triangular thick plate unit c-9, the triangular thick plate unit c-9 is hinged with the triangular thick plate unit d-10, the triangular thick plate unit d-10 is hinged with the quadrangular thick plate unit a-5, forming a closed loop. The hinged positions of the triangular thick plate units are located on two sides of the plate surface, the hinged positions of the quadrilateral thick plate units are located on one side of the plate surface, the geometric dimensions of the quadrilateral thick plate units a-5 and the quadrilateral thick plate units b-8 are the same, the structural forms of the triangular thick plate units a-6 and the triangular thick plate units b-7 are symmetrical, the structural forms of the triangular thick plate units c-9 and the triangular thick plate units d-10 are symmetrical, the degree of freedom of the thick plate paper folding modules a-3 is 1, and the upper surfaces of the thick plate paper folding modules are planes after being unfolded.
The thick plate paper folding module b-4 comprises a quadrilateral thick plate unit c-11, a quadrilateral thick plate unit d-14, 4 triangular thick plate units e-12, a triangular thick plate unit f-13, a triangular thick plate unit g-15 and a triangular thick plate unit h-16, wherein the quadrilateral thick plate unit c-11 is hinged to the triangular thick plate unit e-12, the triangular thick plate unit f-13 is hinged to the quadrilateral thick plate unit d-14, the triangular thick plate unit g-15 is hinged to the quadrilateral thick plate unit d-14, the triangular thick plate unit h-16 is hinged to the quadrilateral thick plate unit c-11, and the quadrilateral thick plate unit c-11 is hinged to the quadrilateral thick plate unit d-14. The hinged positions of the triangular thick plate units are located on one side of the plate surface, the hinged positions of the quadrilateral thick plate units are located on two sides of the plate surface, the geometric dimensions of the quadrilateral thick plate units c-11 and the quadrilateral thick plate units d-14 are the same, the structural forms of the triangular thick plate units e-12 and the triangular thick plate units f-13 are symmetrical, the structural forms of the triangular thick plate units g-15 and the triangular thick plate units h-16 are symmetrical, and the upper surface of the thick plate paper folding module b-2 is a plane after being unfolded.
The thick plate paper folding module a-3 and the thick plate paper folding module b-4 are assembled in series, the triangular thick plate unit d-10 and the triangular thick plate unit e-12 are fixedly bonded, the lengths of the coincident side lines are equal, the angles are correspondingly equal, the triangular thick plate unit c-9 and the triangular thick plate unit f-13 are fixedly bonded, the lengths of the coincident side lines are equal, and the angles are correspondingly equal. The triangular thick plate units after being bonded and fixed have the same motion form, and can be connected in series to drive the quadrilateral thick plate units to move. The form control triangular thick plate unit-20 and the form control quadrilateral thick plate unit-19 are matched to control the unfolding state of the antenna back frame, and the antenna back frame is unfolded in place to realize limiting braking.
In this embodiment, the number of the heavy plate paper folding modules a is 9, and the modules are respectively arranged in 3 rows, and each row comprises 3 modules; the number of the thick plate paper folding modules b is 6, and the thick plate paper folding modules are respectively arranged in 2 rows, and each row comprises 3 modules; the number of the half thick plate paper folding modules b is 6, and the half thick plate paper folding modules are respectively arranged in 2 rows at the tail ends of two sides, and each row comprises 3 modules; the geometric dimension parameters of the thick plate paper folding modules vary with the position serial numbers of the rows, the dimension parameters of the medium plate module units in the same row are the same, the thick plate paper folding modules a are divided into 3 types, namely a thick plate paper folding module a-1, a thick plate paper folding module a-2 and a thick plate paper folding module a-3, and the thick plate paper folding modules a are divided into 4 types, namely a thick plate paper folding module b-1, a thick plate paper folding module b-2, a thick plate paper folding module b-3 and a thick plate paper folding module b-4. The geometric parameters of the thick plate paper folding module can be designed according to the curvature of the target parabolic antenna back frame, the modular design is adopted, and the larger the area of the back frame is, the more the number of the thick plate paper folding module units is.
The flexible object plane throwing cable net is arranged on the surface of the thick plate paper folding structure back frame, and the thick plate paper folding module back frame drives the whole antenna back frame to unfold and fold through serial linkage, so that the parabolic cable net is stretched and curved surface deformation is realized.
The working principle is as follows:
assuming that the working state and the folded state of the parabolic antenna back frame capable of being unfolded in the thick plate paper folding space are respectively shown in fig. 1 and fig. 7, the antenna back frame is initially in the folded state, at this time, the quadrilateral thick plate units in the thick plate paper folding module a and the thick plate paper folding module b are in a parallel adjacent state, and the triangular thick plate units are folded and folded between the quadrilateral thick plate units. When the antenna back frame is unfolded from a folded state to a working state, the quadrilateral thick plate units on the left side and the right side of the thick plate paper folding module a-1 in the middle row move outwards, so that other thick plate paper folding modules in the middle row are driven to move outwards, and the triangular thick plate units in the thick plate paper folding module b-1 hinged to one side of the middle row change in position along with the movement of the middle row module, so that other thick plate units in the row where the b-1 module is located are driven to move, and the thick plate paper folding modules in the row are driven to move outwards. The movement process of the thick plate paper folding module b-2 positioned at the other side of the middle row is consistent with the movement mode of the b-1 module, so that the extension of the paper folding module can be realized by changing the rows. The triangular thick plate units in the row of the thick plate paper folding module a-2 can change positions along with the unfolding motion of the thick plate paper folding module b-1, so that the other thick plate units in the row of the thick plate paper folding module a-2 are driven to move, all the a-2 thick plate paper folding modules generate outward stretching motion, and the motion of the a-2 thick plate paper folding module can drive the thick plate paper folding module b-3 to unfold outward. The a-3 thick plate paper folding module and the b-4 thick plate paper folding module on the other side correspond to the motion principle of the a-2 thick plate paper folding module and the b-3 thick plate paper folding module respectively, so that all the thick plate paper folding modules of the whole antenna back frame can perform outward stretching motion, and the whole antenna back frame is unfolded. When the shape control quadrilateral thick plate unit is contacted with the step slope structure of the shape control triangular thick plate unit, the movement of the corresponding thick plate paper folding module stops, so that the unfolding movement of the whole antenna back frame also stops, and the stretching and the curved surface deformation of the paraboloid cable net are realized.
It should be noted that the detailed description is only for explaining and explaining the technical solution of the present invention, and the scope of protection of the claims is not limited thereby. It is intended that all such modifications and variations be included within the scope of the invention as defined in the following claims and the description.
Claims (6)
1. A space developable paraboloid antenna back frame based on a thick plate paper folding structure is characterized by comprising a plurality of thick plate paper folding A modules (3) and a plurality of thick plate paper folding B modules (4);
the thick plate paper folding A module (3) comprises a first quadrilateral thick plate unit (5), a second quadrilateral thick plate unit (8), a first triangular thick plate unit (6), a second triangular thick plate unit (7), a third triangular thick plate unit (9) and a fourth triangular thick plate unit (10), wherein the first quadrilateral thick plate unit (5) and the second quadrilateral thick plate unit (8) are trapezoidal, and the first triangular thick plate unit (6), the second triangular thick plate unit (7), the third triangular thick plate unit (9) and the fourth triangular thick plate unit (10) are right-angled triangles;
one side of the first quadrilateral thick plate unit (5) is hinged with the bevel edge of the first triangular thick plate unit (6);
the right-angle side of the first triangular thick plate unit (6) is hinged with the right-angle side of the second triangular thick plate unit (7);
the bevel edge of the second triangular thick plate unit (7) is hinged with one edge of the second quadrilateral thick plate unit (8);
the other side of the second quadrilateral thick plate unit (8) is hinged with the bevel edge of the third triangular thick plate unit (9);
the right-angle side of the third triangular thick plate unit (9) is hinged with the right-angle side of the fourth triangular thick plate unit (10);
the bevel edge of the fourth triangular thick plate unit (10) is hinged with the other edge of the first quadrilateral thick plate unit (5);
the first quadrilateral thick plate unit (5), the first triangular thick plate unit (6), the second triangular thick plate unit (7), the second quadrilateral thick plate unit (8), the third triangular thick plate unit (9) and the fourth triangular thick plate unit (10) form a closed loop;
the thick plate paper folding A module (3) is unfolded into a rectangle shape;
when the thick plate paper folding A module (3) is folded, the first triangular thick plate unit (6), the second triangular thick plate unit (7), the third triangular thick plate unit (9) and the fourth triangular thick plate unit (10) are arranged between the first quadrilateral thick plate unit (5) and the second quadrilateral thick plate unit (8);
the thick plate paper folding B module (4) comprises: the three-dimensional rectangular plate comprises a third quadrangular thick plate unit (11), a fourth quadrangular thick plate unit (14), a fifth triangular thick plate unit (12), a sixth triangular thick plate unit (13), a seventh triangular thick plate unit (15) and an eighth triangular thick plate unit (16), wherein the third quadrangular thick plate unit (11) and the fourth quadrangular thick plate unit (14) are trapezoidal, and the fifth triangular thick plate unit (12), the sixth triangular thick plate unit (13), the seventh triangular thick plate unit (15) and the eighth triangular thick plate unit (16) are right-angled triangles;
the lower bottom of the third quadrilateral thick plate unit (11) is hinged with the lower bottom of the fourth quadrilateral thick plate unit (14);
two sides of the third quadrilateral thick plate unit (11) are respectively hinged with the bevel edge of the fifth triangular thick plate unit (12) and the bevel edge of the sixth triangular thick plate unit (13);
two sides of the fourth quadrilateral thick plate unit (14) are respectively hinged with the bevel edge of the seventh triangular thick plate unit (15) and the bevel edge of the eighth triangular thick plate unit (16);
the thick plate paper folding B module (4) is unfolded into a rectangle shape;
when the thick plate paper folding B module (4) is folded, the fifth triangular thick plate unit (12), the sixth triangular thick plate unit (13), the seventh triangular thick plate unit (15) and the eighth triangular thick plate unit (16) are not arranged between the third quadrilateral thick plate unit (11) and the fourth quadrilateral thick plate unit (14);
when the thick plate paper folding A module (3) and the thick plate paper folding B module (4) are folded, the thick plate paper folding B module (4) is inserted between the first quadrilateral thick plate unit (5) and the second quadrilateral thick plate unit (8);
the third triangular thick plate unit (9) and the first quadrilateral thick plate unit (5) or the second quadrilateral thick plate unit (8) are parallel to the bottom side, namely the side A;
the side, namely the side B, of the fourth triangular thick plate unit (10) which is parallel to the bottom side of the first quadrangular thick plate unit (5) or the second quadrangular thick plate unit (8);
the side of the fifth triangular thick plate unit (12) parallel to the bottom side of the third quadrangular thick plate unit (11) or the fourth quadrangular thick plate unit (14), namely the side C;
the side of the sixth triangular thick plate unit (13) parallel to the bottom side of the third quadrangular thick plate unit (11) or the fourth quadrangular thick plate unit (14), namely the side D;
the A side is coincided with the D side, the B side is coincided with the C side, the third triangular thick plate unit (9) is fixedly connected with the coincided part of the sixth triangular thick plate unit (13), and the fourth triangular thick plate unit (10) is fixedly connected with the coincided part of the fifth triangular thick plate unit (12);
the lower bottom of a first quadrilateral thick plate unit (5) in the thick plate paper folding A module (3) is hinged with the lower bottom of a second quadrilateral thick plate unit (8) in the other thick plate paper folding A module (3);
the side, namely the E side, of the thick plate paper folding B module (4) is perpendicular to the lower bottom of the fifth triangular thick plate unit (12) and the third quadrilateral thick plate unit (11) or the fourth quadrilateral thick plate unit (14);
the side perpendicular to the lower bottom of the sixth triangular thick plate unit (13) and the third quadrilateral thick plate unit (11) or the fourth quadrilateral thick plate unit (14) in the thick plate paper folding B module (4), namely the side F;
the seventh triangular thick plate unit (15) in the thick plate paper folding B module (4) is perpendicular to the lower bottom of the third quadrilateral thick plate unit (11) or the fourth quadrilateral thick plate unit (14), namely, the G side;
the side, namely the H side, of the thick plate folding B module (4) perpendicular to the lower bottom of the eighth triangular thick plate unit (16) and the third quadrilateral thick plate unit (11) or the fourth quadrilateral thick plate unit (14);
the edge E in the thick plate paper folding B module (4) is hinged with the edge F in the other thick plate paper folding B module (4);
and the edge G in the thick plate paper folding B module (4) is hinged with the edge H in the other thick plate paper folding B module (4).
2. The spatial developable parabolic antenna back frame based on thick plate paper folding structure according to claim 1 is characterized in that the thickness parameters of the first quadrilateral thick plate unit (5), the second quadrilateral thick plate unit (8), the third quadrilateral thick plate unit (11) and the fourth quadrilateral thick plate unit (14) are equal.
3. The spatial developable parabolic antenna back frame based on the thick plate paper folding structure according to claim 1 is characterized in that the first triangular thick plate unit (6), the second triangular thick plate unit (7), the third triangular thick plate unit (9), the fourth triangular thick plate unit (10), the fifth triangular thick plate unit (12), the sixth triangular thick plate unit (13), the seventh triangular thick plate unit (15) and the eighth triangular thick plate unit (16) control the unfolding state of the antenna back frame by mutual cooperation.
4. The spatial developable parabolic antenna back frame based on the thick plate paper folding structure according to claim 1, characterized in that the antenna back frame is a step slope structure;
the geometric dimension parameters of the first quadrilateral thick plate unit (5), the second quadrilateral thick plate unit (8), the third quadrilateral thick plate unit (11), the fourth quadrilateral thick plate unit (14), the first triangular thick plate unit (6), the second triangular thick plate unit (7), the third triangular thick plate unit (9), the fourth triangular thick plate unit (10), the fifth triangular thick plate unit (12), the sixth triangular thick plate unit (13), the seventh triangular thick plate unit (15) and the eighth triangular thick plate unit (16) change along with the change of the positions of the rows, and the dimension parameters of the thick plate units on the same row are the same.
5. The spatial developable parabolic antenna back frame based on thick plate paper folding structure according to claim 1 is characterized in that the degree of freedom of the antenna back frame is 1.
6. The spatial developable parabolic antenna back frame based on the thick plate origami structure according to claim 1 is characterized in that geometric dimension parameters of the first quadrangular thick plate unit (5), the second quadrangular thick plate unit (8), the third quadrangular thick plate unit (11), the fourth quadrangular thick plate unit (14), the first triangular thick plate unit (6), the second triangular thick plate unit (7), the third triangular thick plate unit (9), the fourth triangular thick plate unit (10), the fifth triangular thick plate unit (12), the sixth triangular thick plate unit (13), the seventh triangular thick plate unit (15) and the eighth triangular thick plate unit (16) are determined according to a curvature of a target parabolic antenna back frame.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115159238A (en) * | 2022-09-05 | 2022-10-11 | 哈尔滨工业大学 | Paper folding type adjustable constant force mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115159238A (en) * | 2022-09-05 | 2022-10-11 | 哈尔滨工业大学 | Paper folding type adjustable constant force mechanism |
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