A multi-ring perimeter parallel networking antenna based on double-shearing fork unit

Abstract

The application discloses a kind of multi-ring periphery parallel networking antenna based on double shear fork unit, it is related to aerospace technology field, by nineteen configurations, size identical six-prism module unit is formed, each six-prism module unit is regarded as a ring periphery type antenna, and entire antenna is formed by each module unit parallelly, each module unit is connected by connecting unit, each six-prism module unit is formed by six groups configuration, size identical double shear fork unit, the drive of double shear fork unit is located on each module six corners.The technical scheme of the application can provide reference value for the design of super-large aperture parabolic load antenna, and is beneficial to decoupling in the deployment process, expanding simple parabolic antenna design, so that the antenna can adapt to higher working frequency and has a wider frequency band, and then the anti-reconnaissance of the antenna is enhanced through frequency hopping communication technology and spread spectrum communication technology.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerospace technology, in particular to a multi-ring periphery parallel networking antenna based on double-shearing fork units. BACKGROUND

[0002] Large space deployable antenna structure is one of the rapidly developing research directions in recent years, and is the key equipment to support large space antennas. Due to its special application in resource exploration, military early warning and deep space exploration and communication, and its great difficulty in development, it has become one of the scales to measure the spaceflight capabilities of a space power. Large space deployable antenna structure has great strategic significance to a country's social economy and national security, and has become a hot spot for research and deployment by various countries. In the next ten years, China needs to launch dozens of satellites for future national space exploration, communication, electronic reconnaissance, navigation, remote sensing, earth observation and deep space exploration. Due to the long distance, the signal received by the satellite is weak, and the satellite-borne antenna is required to have a large aperture to obtain high gain.

[0003] In order to obtain faster and higher quality signal transmission capability, communication satellites need to carry large-aperture satellite-borne antennas to meet the demand. In addition, in order to transmit high-power continuous microwaves from geosynchronous orbit to the ground, space solar power stations require hundreds of meters of super-large antennas. Satellite-borne antennas with high gain and strong directivity have a profound application prospect in military satellites due to their strong anti-interference capability. The frequency hopping communication technology and spread spectrum communication technology used to enhance the anti-reconnaissance of the antenna require the antenna to adapt to higher working frequency and have a wider frequency band. These requirements naturally put higher requirements on future satellite-borne antennas. In view of the above problems, a multi-ring periphery parallel networking antenna based on double-shearing fork units is proposed. SUMMARY

[0004] The purpose of the present application is to provide a multi-ring periphery parallel networking antenna based on double-shearing fork units to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a multi-ring periphery parallel networking antenna based on double-shearing fork units, which is composed of nineteen six-prism module units with the same configuration and size. Each six-prism module unit is regarded as a ring periphery antenna, and the entire antenna is composed of parallel module units. The module units are connected by connecting units. Each six-prism module unit is composed of six groups of double-shearing fork units with the same configuration and size. The driving of the double-shearing fork unit is located on each module six corners. According to the working mode of the connecting unit, the connecting unit can be divided into two categories, a total of five connecting units. The connecting units of the same type have the same configuration but different sizes.

[0006] The multiple-ring periphery of the double-scissor unit is deployed in two stages of mutual decoupling, in the first stage, only the module units are deployed, the included angle of the double-scissor units in the same module unit remains unchanged, and the double-scissor units are synchronously deployed, the movement in the first stage is planar deployment, the vertices on the upper and lower surfaces of each module unit always remain coplanar, and the movement in the first stage is to expand the aperture of the antenna, in the second stage, only the connecting units are deployed, the movement in the second stage is spatial movement, the connecting units are mutually separated to make the module units parallel and form a specific included angle, and the movement in the second stage is to make the antenna form a required geometric shape.

[0007] The module units are divided into two types of topological type one module and topological type two module according to the generation mode, six topological type two modules close to the central module are generated by rotating the central module, six topological type two modules away from the central module are generated by the topological type two modules close to the central module in the same way, and the outer topological type one module is generated by the outer topological type two module in reverse.

[0008] The connecting units are divided into two types according to the working mode, the first type only includes one type of first type connecting unit, the included angle of the plane where the first type connecting unit is located and the adjacent module unit remains unchanged during deployment, the second type includes second type connecting units, and is divided into four types of second type connecting unit type one, second type connecting unit type two, second type connecting unit type three and second type connecting unit type four, the second type connecting unit not only expands in the plane where the second type connecting unit is located, but also rotates relative to the module unit connected to the second type connecting unit, the second type connecting unit includes second type connecting unit side rods, second type connecting unit rotating female hinges, second type connecting unit rotating male hinges and second type connecting unit connections, the second type connecting unit side rods are connected with the second type connecting unit rotating male hinges, and can rotate around the symmetry axis, the included angle of the plane where the second type connecting unit is located and the adjacent module unit changes during deployment.

[0009] Preferably, the first type connecting unit includes first type connecting unit side rods, a connecting unit scissor mechanism upper rotating module, a connecting unit scissor mechanism lower sliding module, a connecting unit scissor mechanism sliding limit, first type connecting unit connections, a connecting unit upper and lower rod connecting piece, a connecting unit upper rod, a connecting unit lower rod, a connecting unit locking claw, a connecting unit driving spring, a connecting unit driving spring limit, a connecting unit scissor mechanism upper scissor rod, a connecting unit scissor mechanism lower scissor rod, a connecting unit scissor mechanism scissor rod adapter and a connecting unit scissor mechanism center hinge, the connecting unit is in an isosceles trapezoidal shape in the deployed state and is in an elongated rectangular shape in the folded state, the plane where the first type connecting unit is located and the module unit connected to the first type connecting unit do not rotate relative to each other during deployment, the first type connecting unit is fixedly connected to the module unit, and the scissor mechanism in the middle of the connecting unit is used to ensure that the entire unit has a single degree of freedom during deployment.

[0010] Preferably, the connecting unit has a scissors mechanism in the middle to ensure that the entire connecting unit is deployed in a single degree of freedom, and the entire deployment process of the connecting unit is driven by the connecting unit drive spring driving the connecting unit scissors mechanism lower sliding module, while the upper and lower parts of the connecting unit have connecting unit locking claws for automatic locking after deployment.

[0011] Preferably, each module unit of the antenna has a cable net cooperating with the six double scissors units at its edges to form a rigid-flexible coupled structure, the cable net structure is composed of a front cable net, a tension array and a back cable net, the antenna forms a working surface by relying on the front cable net attached to each module unit, the front cable net profiles of the module units at different positions are slightly different, and multiple module units are connected in parallel to form a parabolic working surface, each point on the upper surface of each module unit is located on a spherical surface fitted by the working surface, and the front cable net of each module unit and the folding and deploying mechanism are connected by a certain compensation to compensate for errors.

[0012] Preferably, the connecting unit locking claw includes a connecting unit locking claw male hinge, a connecting unit locking claw female hinge, a connecting unit locking claw locking rod, a locking rod rotation shaft, a locking rod actuating torsional spring, a connecting unit locking claw drive coil spring, a connecting unit locking claw rotation shaft, and a connecting unit locking claw fixing nut, the thickness of the antenna remains unchanged during deployment, the module unit is an elongated hexagonal prism when it is folded, and the entire antenna is a low columnar structure when it is folded, which is formed by connecting multiple groups of elongated hexagonal prisms through the connecting unit in parallel.

[0013] Preferably, the double scissors unit includes a sliding rod, a center sliding module, a short side sliding module group, a long side sliding module group, a push rod, a module corner connector, a center scissors mechanism connector, a side scissors mechanism connector, a double scissors unit drive spring, and a sliding module limit, each of the two different parallel axes of the sliding rod is provided with a single scissors mechanism, realizing staggered placement of the front and rear center scissors mechanisms in the same double scissors unit, and one part of the short side sliding module group and the long side sliding module group on the two axes of the edge sliding rods of the double scissors unit is connected with the other part of the sliding rod of the adjacent double scissors unit edge, realizing synchronous deployment of the same module unit.

[0014] Preferably, the single scissors mechanism includes a single scissors mechanism hinge, a single scissors mechanism scissors rod, and a single scissors mechanism scissors rod edge connector, the single scissors mechanism hinge can make the four single scissors mechanism scissors rods in the single scissors mechanism rotate around the same axis.

[0015] Preferably, the single shear fork mechanism hinge comprises a single shear fork mechanism half hinge, a single shear fork mechanism rotating shaft, a single shear fork mechanism bearing, and a bearing retainer ring, the single shear fork mechanism half hinge enables the single shear fork mechanism fork rod connected thereto to rotate around the single shear fork mechanism rotating shaft, the single shear fork mechanism rotating shaft, as the main body of rotation, can be matched with the bearing retainer ring to realize the placement of the single shear fork mechanism bearing.

[0016] Preferably, the central sliding module comprises a central sliding module sliding main body, a central sliding module adapter plate, a central sliding module upper double hinge, and a central sliding module bottom plate, the central sliding module sliding main body can enable the central sliding module to slide on the sliding rod while maintaining good coaxiality.

[0017] Preferably, the short side edge sliding module group comprises a side edge sliding module sliding main body, a short side edge sliding module group adapter plate, a side edge sliding module upper single hinge, and a side edge sliding module bottom plate, each of the short side edge sliding module group comprises two side edge sliding module sliding main bodies at an included angle of 60°, which can maintain good coaxiality with the sliding rods on two adjacent double shear units respectively, and the long side edge sliding module group comprises a long side edge sliding module group adapter plate, which is different from the short side edge sliding module group adapter plate in length and notch angle arrangement.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] In the present application, a multi-ring peripheral parallel networking antenna based on a double shear unit comprises nineteen module units with the same configuration and size and different connecting units connected between the module units, the unfolded aperture is not less than 50 m, the storage cross section diameter is about 5.1 m, the module units are hexagonal prisms based on a double shear unit, different module units are connected with each other through different types of connecting units, the antenna aperture expansion and surface formation are divided into two decoupled stages through the module unit mechanism and the connecting unit mechanism, the first stage of unfolding is only the coplanar unfolding of the module units to realize the antenna aperture expansion, and the second stage of unfolding is only the spatial unfolding of the connecting units, so that the vertices of each module unit are located on the same spherical surface, the connecting units are spread apart to make the module units parallel and form a specific included angle, which functions to make the antenna form the required geometric shape, the technical scheme of the present application can provide reference value for the design of a super-large aperture parabolic load antenna, is conducive to the decoupling of the unfolding process and the expansion of simple parabolic antenna design, enables the antenna to adapt to a higher working frequency and has a wider frequency band, and further enhances the anti-reconnaissance performance of the antenna through frequency hopping communication technology and spread spectrum communication technology. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the unfolding schematic diagram of the multi-ring peripheral parallel networking antenna based on a double shear unit in the present application;

[0021] Figure 2 is the folding schematic diagram of the multi-ring periphery parallel networking antenna folding and unfolding mechanism based on double-shear fork unit in the application;

[0022] Figure 3 is the intermediate stage schematic diagram of the antenna unfolding in the application;

[0023] Figure 4 is the schematic diagram of the antenna module unit topology type division in the application;

[0024] Figure 5 is the schematic diagram of the connection unit type in the application;

[0025] Figure 6 is the schematic diagram of the module unit cable net in the application;

[0026] Figure 7 is the unfolding schematic diagram of the double-shear fork unit in the application;

[0027] Figure 8 is the folding schematic diagram of the double-shear fork unit in the application;

[0028] Figure 9 is the schematic diagram of the mutual connection and driving configuration of the double-shear fork unit in the application;

[0029] Figure 10 is the schematic diagram of the single-shear fork mechanism in the application;

[0030] Figure 11 is the schematic diagram of the center hinge of the single-shear fork mechanism in the application;

[0031] Figure 12 is the schematic diagram of the module angle connector in the application;

[0032] Figure 13 is the schematic diagram of the center shear fork mechanism connector in the application;

[0033] Figure 14 is the schematic diagram of the side shear fork mechanism connector in the application;

[0034] Figure 15 is the schematic diagram of the center sliding module in the application;

[0035] Figure 16 is the schematic diagram of the short side edge sliding module group in the application;

[0036] Figure 17 is the schematic diagram of the long side edge sliding module group in the application;

[0037] Figure 18 is the schematic diagram of the short side edge sliding module group adapter plate in the application;

[0038] Figure 19 is the schematic diagram of the adapter plate of the long side sliding module group in the application;

[0039] Figure 20 is the schematic diagram of the first type of connection unit unfolding in the application;

[0040] Figure 21 is the schematic diagram of the first type of connection unit folding in the application;

[0041] Figure 22 is the schematic diagram of the second type of connection unit unfolding in the application;

[0042] Figure 23 is the schematic diagram of the second type of connection unit folding in the application;

[0043] Figure 24 is the schematic diagram of the connection between the second type of connection unit and the double shear fork unit in the application;

[0044] Figure 25 is the schematic diagram of the locking claw of the connection unit in the application;

[0045] Figure 26 is the schematic diagram of the upper and lower rod connecting piece of the connection unit in the application;

[0046] Figure 27 is the schematic diagram of the male hinge of the locking claw of the connection unit in the application;

[0047] Figure 28 is the schematic diagram of the female hinge of the locking claw of the connection unit in the application.

[0048] In the figure: 01, topology type one module; 02, topology type two module; 11, first type connection unit; 21, second type connection unit type one; 22, second type connection unit type two; 23, second type connection unit type three; 24, second type connection unit type four; 31, front cable net; 32, tension array; 33, back cable net; 001, single scissor mechanism; 002, sliding rod; 003, center sliding module; 004, short side sliding module group; 005, long side sliding module group; 006, push rod; 007, module corner connector; 008, center scissor mechanism connector; 009, side scissor mechanism connector; 010, double scissor unit drive spring; 011, sliding module limit; 0011, single scissor mechanism hinge; 0012, single scissor mechanism scissor rod; 0013, single scissor mechanism scissor rod edge connector; 00111, single scissor mechanism half hinge; 00112, single scissor mechanism rotation shaft; 00113, single scissor mechanism bearing; 00114, bearing retainer; 0031, center sliding module sliding main body; 0032, center sliding module adapter plate; 0033, center sliding module upper double hinge; 0034, center sliding module bottom plate; 0041, side sliding module sliding main body; 0042, short side sliding module group adapter plate; 0043, side sliding module upper single hinge; 0044, side sliding module bottom plate; 0052, long side sliding module group adapter plate; 101, first type connection unit side rod; 102, connection unit scissor mechanism upper rotation module; 103, connection unit scissor mechanism lower sliding module; 104, connection unit scissor mechanism sliding limit; 105, first type connection unit connection; 106, connection unit upper and lower rod connector; 107, connection unit upper rod; 108, connection unit lower rod; 109, connection unit locking claw; 110, connection unit drive spring; 111, connection unit drive spring limit; 112, connection unit scissor mechanism upper scissor rod; 113, connection unit scissor mechanism lower scissor rod; 114, connection unit scissor mechanism scissor rod adapter; 115, connection unit scissor mechanism center hinge; 201, second type connection unit side rod; 202, second type connection unit rotation male hinge; 203, second type connection unit adapter side rod; 204, second type connection unit rotation female hinge; 205, second type connection unit connection; 1091, connection unit locking claw male hinge; 1092, connection unit locking claw female hinge; 1093, connection unit locking claw locking rod; 1094, locking rod rotation shaft; 1095, locking rod actuating torsion spring; 1096, connection unit locking claw drive coil spring; 1097, connection unit locking claw rotation shaft; 1098, connection unit locking claw fixed nut. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0050] Embodiment 1: Reference Figure 1 - Figure 5 As shown in the figure: a multi-ring periphery parallel networking antenna based on double-shear fork units, composed of nineteen six-prism module units with the same configuration and size, with an aperture of no less than 50 m, each six-prism module unit is regarded as a ring periphery antenna, and the entire antenna is composed of parallel module units, the module units are connected by connecting units, each six-prism module unit is composed of six groups of double-shear fork units with the same configuration and size, the driving of the double-shear fork units is located on the six corners of each module, and the connecting units can be divided into two categories, i.e., five connecting units according to the working mode of the connecting units, and connecting units of the same type have the same configuration but different sizes;

[0051] The multi-ring periphery parallel networking antenna based on double-shear fork units is unfolded in two stages of mutual decoupling, in the first stage, only the module units are unfolded (the unfolding in the first stage is from the folded state to the intermediate unfolded state, the unfolding stage is the planar unfolding movement of the module units, and the upper and lower vertices of each module unit remain coplanar during the unfolding process, and the effect of this stage is to expand the planar aperture), the included angle of each double-shear fork unit in the same module unit remains unchanged, and the double-shear fork units are synchronously unfolded, the movement in the first stage is planar unfolding, the upper and lower vertices on each module unit always remain coplanar, and the effect is to expand the aperture of the antenna, in the second stage, only the connecting units are unfolded, the unfolding movement in the second stage is spatial movement, the connecting units are mutually spread apart to make the module units parallel and form a specific included angle, and the effect is to make the antenna form a required geometric shape (the unfolding in the second stage is from the intermediate unfolded state to the completely unfolded state, the unfolding in this stage is the spatial unfolding movement between the connecting units, the movement process is designed to unfold the connecting units in the plane where the connecting units are located and rotate relative to the module units around the symmetry axis of the side rod 201 of the connecting units of the second type, and the effect of this stage is to make the antenna work surface form a required parabolic surface);

[0052] The module units are divided into two types, a topological type one module 01 and a topological type two module 02, according to the generating mode. Six topological type two modules 02 close to the central module are generated by rotating the central module, six topological type two modules 02 far from the central module are generated by the topological type two modules 02 close to the central module in the same way, and the outer topological type one module 01 is generated by inversely generating the outer topological type two module 02. (The centralmost module is a topological type one module 01. The central module is rotated by an angle along the perpendicular of the edge to form the inner topological type two module 02 close to the central module. The outer topological type two module 02 far from the central module is formed by rotating the inner topological type two module 02 by the same angle along the rotating direction. The outer topological type one module 01 is inversely generated by rotating the outer topological type two module 02 along the corresponding edge in the clockwise direction according to the way of generating the inner topological type two module 02 of the central module.)

[0053] The connecting units are divided into two types according to the working mode. The first type only includes one type of first connecting unit 11, which only expands in the plane where it is located, and the angle between the plane and the adjacent module unit remains unchanged during expansion. The second type includes a second connecting unit, which is divided into four types, a second connecting unit type one 21, a second connecting unit type two 22, a second connecting unit type three 23, and a second connecting unit type four 24. The second connecting unit not only expands in the plane where it is located, but also has a relative rotation between the plane and the module unit connected thereto. The second connecting unit includes a second connecting unit side rod 201, a second connecting unit adapter side rod 203, a second connecting unit rotating female hinge 204, and a second connecting unit connection 205. The second connecting unit side rod 201 is connected with a plurality of second connecting unit rotating male hinges 202, which can realize rotation around the symmetry axis. The angle between the plane and the adjacent module unit changes during expansion.

[0054] In this embodiment, the working surface formed by the plurality of module units in the expanded state is a parabolic surface through parallel connection, and the edge corner vertices of the module units close to the working surface are located on the same spherical surface fitted by the parabolic surface. The antenna in the folded state is a plurality of elongated hexagonal prism module units connected by the connecting units, and the overall structure is a low column structure with a height slightly higher than 3m and an envelope cross-sectional diameter less than 5.1m.

[0055] Embodiment 2: It has the implementation content of the above-mentioned embodiment, wherein for the specific implementation of the above-mentioned embodiment, please refer to the above description, and the embodiment here is not repeated in detail; and in the embodiment of the present application, the difference from the above-mentioned embodiment is that:

[0056] In this embodiment, reference is made to Figure 6Each module unit of the antenna is provided with a cable net matched with six double-shear units at the edges thereof to form a rigid-flexible coupling structure. The cable net structure is composed of a front cable net 31, a tension array 32 and a back cable net 33. The antenna forms a working surface by means of the front cable net 31 attached to each module unit. The front cable net 31 of the module units at different positions has slightly different profiles. After a plurality of module units are connected in parallel, a parabolic working surface is formed. Each point on the upper surface of each module unit is located on a spherical surface fitted by the working surface. The front cable net 31 of each module unit and the folding and unfolding mechanism are connected through a certain compensation connection to compensate for errors.

[0057] Embodiment 3: It has the implementation content of the above-mentioned embodiments, wherein, for the specific implementation of the above-mentioned embodiments, please refer to the above description, the embodiment here does not repeat detailed description; and in the embodiment of the application, the difference from the above-mentioned embodiments is that:

[0058] In the embodiment, refer to Figure 7 and Figure 8 The double-shear unit includes a sliding rod 002, a center sliding module 003, a short side sliding module group 004, a long side sliding module group 005, a pushing rod 006, a module corner connecting piece 007, a center shear mechanism connecting piece 008, a side shear mechanism connecting piece 009, a double-shear unit driving spring 010 and a sliding module limiting piece 011. One single shear mechanism 001 is arranged on each of two different parallel axes of the sliding rod 002 (two parallel sliding axes on the sliding rod 002 maintain a certain distance), so as to realize staggered placement of the front and rear center shear mechanisms on the same double-shear unit (the single shear mechanism 001 of the same double-shear unit is divided into two parts that do not interfere with each other in movement). One part of the short side sliding module group 004 and the long side sliding module group 005 is arranged on each axis of the two sliding rods 002 at the edges of the double-shear unit, and the other part is connected with the sliding rod 002 at the edge of the adjacent double-shear unit, so as to realize synchronous unfolding of the same module unit. The three single shear mechanisms 001 connected through the center sliding module 003 on the same side can realize synchronous movement and unfolding through two hinges on the center sliding module 003.

[0059] In this embodiment, each double scissor unit contains six, a total of two groups of three-phase connected front and back staggered single scissor mechanism 001, the outer edge of the four single scissor mechanism 001 of the edge is connected with the short side sliding module group 004 or the long side sliding module group 005 through the hinge, which can realize the composite motion of sliding and axial rotation of the motion axis, the other end is connected with the side scissor mechanism connector 009 through the hinge, which can realize the rotation around the hinge shaft, one end of the middle two single scissor mechanism 001 is connected with the center sliding module 003 through the hinge, which can realize the composite motion of sliding and axial rotation of the motion axis, the other end is connected with the side scissor mechanism connector 009 through the hinge, which can realize the rotation around the hinge shaft;

[0060] In this embodiment, referring to Figure 9 , the corresponding single scissor mechanism 001 of two adjacent double scissor units shares the same short side sliding module group 004 or long side sliding module group 005, wherein the short side sliding module group 004 is arranged on the sliding rod 002 close to the center of the module unit, and the long side sliding module group 005 is arranged on the sliding rod 002 away from the center of the module unit, the short side sliding module group 004 and the long side sliding module group 005 are moved by the double scissor unit driving spring 010 arranged on the front and rear two pushing rods 006 between the two module corner connectors 007, the movement directions of the two double scissor unit driving springs 010 are opposite, which can realize the up and down staggered movement of the short side sliding module group 004 and the long side sliding module group 005, at the same time, the short side sliding module group 004 and the long side sliding module group 005 can make the two single scissor mechanisms 001 connected thereto located on different double scissor units realize synchronous expansion, and then realize the synchronous expansion of the entire module unit through the closed loop connection of the double scissor units;

[0061] In this embodiment, referring to Figure 10 , the single scissor mechanism 001 includes a single scissor mechanism hinge 0011, a single scissor mechanism scissor rod 0012, and a single scissor mechanism scissor rod edge connector 0013, the single scissor mechanism hinge 0011 can make the four single scissor mechanism scissor rods 0012 in the single scissor mechanism 001 rotate around the same shaft, and at the same time, the single scissor mechanism scissor rods 0012 are staggered with each other when being stored, reducing the space required for storage, all the single scissor mechanism scissor rods 0012 of the antenna are hollow tubular rods, and the lengths of the single scissor mechanism scissor rods 0012 are constant, so the expansion process of each single scissor mechanism 001 is also completely the same, the single scissor mechanism scissor rod edge connector 0013 has two non-intersecting and mutually perpendicular staggered axes, which are used to realize the rotation and the composite motion of rotation and sliding of the single scissor mechanism 001;

[0062] In this embodiment, referring to Figure 11The single scissor mechanism hinge 0011 includes a single scissor mechanism half hinge 00111, a single scissor mechanism rotation shaft 00112, a single scissor mechanism bearing 00113, and a bearing retaining ring 00114. The single scissor mechanism half hinge 00111 enables the connected single scissor mechanism scissor rod 0012 to rotate around the single scissor mechanism rotation shaft 00112, and at the same time achieve mutual staggering when stored. The single scissor mechanism rotation shaft 00112, as the rotating body, can cooperate with the bearing retaining ring 00114 to realize the placement of the single scissor mechanism bearing 00113.

[0063] In this embodiment, refer to Figure 12 - Figure 14 The module corner connector 007 has five through holes with axes parallel to each other but kept at a certain distance. Four of the symmetrical through holes will be connected to the sliding rods 002 of different double scissor units to securely connect adjacent double scissor units. The shaft with the axis located in the symmetry plane is used to connect to the first type of connection unit 11, thereby realizing the connection between different module units through the first type of connection unit 11. The inner holes of the tubular interfaces with the axes located in front and behind on the symmetry plane are used to fix one end of the push rod 006, and the outer holes are used to fix the double scissor unit drive spring 010, thereby realizing the deployment drive of the module units.

[0064] In this embodiment, the central scissors-fork mechanism connector 008 is installed on one side of the two middle sliding rods 002 of the double scissors-fork unit, and there is a rotating hinge on both sides thereof, which can make the plane where the corresponding central sliding rod 002 is located remain parallel when the double scissors-fork unit is unfolded. The side scissors-fork mechanism connector 009 has two mutually orthogonal axes, which is used to connect the single scissors-fork mechanism 001 at the edge of the double scissors-fork unit so that the plane where the corresponding edge sliding rod 002 is located remains parallel to the plane where the central sliding rod 002 is located when the double scissors-fork unit is unfolded.

[0065] Example 4: It has the implementation content of the above-mentioned embodiment. For the specific implementation of the above-mentioned embodiment, please refer to the above description, and the embodiment here will not be repeated in detail; however, in the embodiment of this application, it differs from the above-mentioned embodiment in that:

[0066] In this embodiment, refer to Figure 15, the center sliding module 003 comprises a center sliding module sliding body 0031, a center sliding module adapter plate 0032, a center sliding module upper double hinge 0033, and a center sliding module bottom plate 0034. The center sliding module sliding body 0031 can make the center sliding module 003 slide on the sliding rod 002 while maintaining good coaxiality. The center sliding module adapter plate 0032 is connected to the center sliding module upper double hinge 0033 through the internal hole, and the center sliding module upper double hinge 0033 is connected to the single scissor mechanism 001 through the hinge, realizing the rotation and linkage of the single scissor mechanism 001. The center sliding module bottom plate 0034 is in contact with the sliding module limiting 011 after the double scissor unit is unfolded, realizing the limiting of the mechanism. The above components all contain notches, which can avoid the interference between the center sliding module 003 and the connecting plate on the sliding rod 002 during movement;

[0067] In this embodiment, refer to Figure 16 and Figure 17 The short side sliding module group 004 comprises a side sliding module sliding body 0041, a short side sliding module group adapter plate 0042, a side sliding module upper single hinge 0043, and a side sliding module bottom plate 0044. Each short side sliding module group 004 comprises two side sliding module sliding bodies 0041 at an angle of 60°, which can maintain good coaxiality with the sliding rod 002 on the two adjacent double scissor units. The short side sliding module group adapter plate 0042 has a hole through which the push rod 006 passes. When the double scissor unit driving spring 010 pushes the short side sliding module group adapter plate 0042 to move, it can make the two single scissor mechanisms 001 connected by the short side sliding module group 004 move synchronously. The rotation axis of the side sliding module upper single hinge 0043 is at an angle of 60°, which can respectively connect the single scissor mechanism 001 of the adjacent double scissor unit. The side sliding module bottom plate 0044 is in contact with the sliding module limiting 011 at the end of unfolding, realizing the limiting of the mechanism. At the same time, the above components all contain notches, which can avoid the interference between the short side sliding module group 004 and the connecting plate on the sliding rod 002 during movement. The difference between the long side sliding module group 005 and the short side sliding module group 004 is that the corresponding components of the long side sliding module group 005 are at an angle of 120°. The long side sliding module group adapter plate 0052 in the long side sliding module group 005 is different from the short side sliding module group adapter plate 0042 in length and notch angle, but the corresponding functions are the same;

[0068] In this embodiment, refer to Figure 18 and Figure 19The short-side sliding module group 004 and the long-side sliding module group 005 have the same functions, and the main structural difference is that the lengths and the angles of the notches are different. Each of the two has an opening for the sliding rod 002 to pass through, and each half has six inner and outer circle screw holes for switching. The inner circle screw holes are used to connect with the sliding main body 0041 of the side sliding module, and the three holes are arranged at an angle of 120°. The outer circle screw holes are used to connect with the upper single hinge 0043 of the side sliding module, and the three holes are also arranged at an angle of 120°. The middle part of each has an opening for the push rod 006 to pass through, and the outer side of the opening has a protrusion for limiting the transverse displacement of the double-shear fork unit driving spring 010.

[0069] Embodiment 5: It has the implementation content of the above-mentioned embodiments, wherein for the specific implementation of the above-mentioned embodiments, please refer to the above description, and the embodiment here does not repeat the detailed description; and in the embodiment of the present application, the difference from the above-mentioned embodiments is that:

[0070] In this embodiment, referring to Figure 20 and Figure 21 , the first type of connection unit 11 includes a first type of connection unit side rod 101, a connection unit shear fork mechanism upper rotating module 102, a connection unit shear fork mechanism lower sliding module 103, a connection unit shear fork mechanism sliding limit 104, a first type of connection unit connection 105, a connection unit upper and lower rod connecting piece 106, a connection unit upper rod 107, a connection unit lower rod 108, a connection unit locking claw 109, a connection unit driving spring 110, a connection unit driving spring limit 111, a connection unit shear fork mechanism upper shear fork rod 112, a connection unit shear fork mechanism lower shear fork rod 113, a connection unit shear fork mechanism shear fork rod adapter 114, and a connection unit shear fork mechanism center hinge 115. The connection unit in the unfolded state is approximately isosceles trapezoidal, and in the folded state, it is approximately elongated rectangular. The plane of the first type of connection unit 11 and the module unit connected thereto does not produce relative rotation during the unfolding process. The first type of connection unit 11 is fixedly connected with the module unit. The shear fork mechanism in the middle of the connection unit is used to ensure that the entire unit has single degree of freedom during the unfolding process, and its configuration is similar to that of the single shear fork mechanism 001 in the double-shear fork unit. The upper ends of the two connection unit shear fork mechanism upper shear fork rods 112 and the connection unit shear fork mechanism shear fork rod adapter 114 are fixedly connected, and form a rotating pair with the connection unit shear fork mechanism upper rotating module 102 fixed on the first type of connection unit side rod 101 through the hinge, realizing the rotation of the shear fork mechanism in the middle of the connection unit around the fixed shaft. The lower ends of the two connection unit shear fork mechanism lower shear fork rods 113 and the connection unit shear fork mechanism shear fork rod adapter 114 are fixedly connected, and form a rotating pair with the connection unit shear fork mechanism lower sliding module 103 which can slide on the first type of connection unit side rod 101 through the hinge, realizing the combined motion of rotation and sliding of the shear fork mechanism in the middle of the connection unit around the shaft.

[0071] In this embodiment, the middle part of the connecting unit has a scissors mechanism, which is used to ensure that the entire deployment process of the connecting unit is single degree of freedom deployment. The entire deployment process of the connecting unit is driven by the connecting unit driving spring 110 driving the lower sliding module 103 of the connecting unit scissors mechanism. Meanwhile, the upper and lower parts of the connecting unit have connecting unit locking clamps 109 for automatic locking after deployment to the position;

[0072] In this embodiment, the scissors mechanism in the middle part of the connecting unit is pushed to deploy by the connecting unit driving spring 110 which abuts on the connecting unit driving spring limit 111 at one end, and the deployment limit is achieved by the contact between the lower sliding module 103 of the connecting unit scissors mechanism and the connecting unit scissors mechanism sliding limit 104. The connecting unit driving spring limit 111 and the connecting unit scissors mechanism sliding limit 104 are both fixedly connected with the first type of connecting unit side rod 101;

[0073] In this embodiment, there are two connection methods between the first type of connecting unit 11 and the module unit: one is that the first type of connecting unit 11 connected to the outer side of the double scissors unit is directly connected through the corresponding hole of the module angle connecting piece 007 in the module unit, and the other is that the first type of connecting unit 11 connected to the middle part of the double scissors unit is fixedly connected through the first type of connecting unit connection 105. The connecting hole on the outer side of the first type of connecting unit connection 105 is used to connect with the sliding rod 002, and the inner side structure is similar to the side scissors mechanism connecting piece 009. It can be connected with the upper and lower rod connecting piece 106 of the connecting unit through the hinge while connecting the first type of connecting unit side rod 101;

[0074] In this embodiment, the first type of connecting unit 11 is locked at the same time by the upper and lower connecting unit locking clamps 109 after deployment to the position. The upper and lower connecting unit locking clamps 109 are respectively connected with the connecting unit upper rod 107 and the connecting unit lower rod 108. These two rod pieces are hollow square tube structures and can be staggered front and back when the first type of connecting unit 11 is folded;

[0075] In this embodiment, refer to Figure 22 - Figure 24The main difference between the second type of connecting unit and the first type of connecting unit 11 is that the side rod 201 of the second type of connecting unit is a segmented rod with a plurality of second type of connecting unit rotating male hinges 202 nested therebetween, so that the plane thereof can change the angle with the module unit connected thereto during the antenna deployment process. The second type of connecting unit rotating male hinge 202 can cooperate with a plurality of second type of connecting unit rotating female hinges 204 nested on the second type of connecting unit adapter side rod 203, so that the connecting unit rotates around the rotation shaft of the rotating pair formed by the two. The connection mode of the second type of connecting unit and the module unit is only one, that is, the second type of connecting unit connecting 205 fixed on the second type of connecting unit adapter side rod 203 is connected with the sliding rod 002 of the corresponding double scissors unit.

[0076] Embodiment 6: It has the implementation content of the above-mentioned embodiments, wherein for the specific implementation of the above-mentioned embodiments, please refer to the above description, and the embodiment here does not repeat the detailed description; and in the embodiment of the present application, the difference from the above-mentioned embodiments is that:

[0077] In this embodiment, referring to Figure 25 , the connecting unit locking claw 109 includes a connecting unit locking claw male hinge 1091, a connecting unit locking claw female hinge 1092, a connecting unit locking claw locking rod 1093, a locking rod rotating shaft 1094, a locking rod actuating torsional spring 1095, a connecting unit locking claw drive coil spring 1096, a connecting unit locking claw rotating shaft 1097, and a connecting unit locking claw fixing nut 1098. The thickness dimension of the antenna remains unchanged during the deployment process. The module unit is an elongated hexagonal prism when it is folded. The entire antenna is a low columnar structure formed by a plurality of elongated hexagonal prisms connected in parallel through the folding connecting unit.

[0078] In this embodiment, the connecting unit locking claw male hinge 1091 is locked by the connecting unit locking claw locking rod 1093 connected with the connecting unit locking claw female hinge 1092. During the folding stage, the connecting unit locking claw locking rod 1093 is located in the cylindrical protrusion track in the middle of the connecting unit locking claw male hinge 1091. After deployment, the connecting unit locking claw locking rod 1093 can be rotated around the locking rod rotating shaft 1094 under the action of the torque of the locking rod actuating torsional spring 1095, that is, it can be clamped into the recess at the end of the cylindrical protrusion track, realizing locking. During the initial stage of deployment, the connecting unit locking claw drive coil spring 1096 can provide a basic torque for the claw, so that it can overcome the possible jamming in the initial position and smoothly deploy. The connecting unit locking claw rotating shaft 1097 is located in the corresponding hole position of the connecting unit locking claw male hinge 1091 and the connecting unit locking claw female hinge 1092 to realize the relative rotation of the two. The two ends are threaded and can cooperate with the connecting unit locking claw fixing nut 1098 to realize the axial fixation of the two coil springs and the male and female hinges.

[0079] In this embodiment, with reference to Figure 26 Figure 28 One end of the upper and lower rod connecting piece 106 of the connecting unit is a parallel two-hole, and by connecting the upper rod 107 or the lower rod 108 of the connecting unit with one of the two holes, the two upper rods 107 or lower rods 108 of the connecting unit connected with the same connecting unit locking claw 109 can be realized in a staggered state. One end of the male hinge 1091 of the connecting unit locking claw is a square hole connected with the upper rod 107 or the lower rod 108 of the connecting unit, and the other end has a cylindrical protruding track outside the shaft hole. The locking rod 1093 of the connecting unit locking claw is located on the track at the initial stage of unfolding, moves tangentially along the track during the unfolding process, and falls into the notch at the end of the unfolding process to achieve locking. The female hinge 1092 of the connecting unit locking claw has a square hole staggered in front of and behind the male hinge 1091 of the connecting unit locking claw at one end, and includes a shaft hole for placing the rotating shaft 1097 of the connecting unit locking claw and the rotating shaft 1094 of the locking rod at the other end.

[0080] The working principle and method of using the device: a multi-ring peripheral parallel networking antenna based on a double-shear fork unit, including nineteen module units with the same size and different connecting units connected between the module units, the unfolding aperture is not less than 50m, the storage cross-section diameter is about 5.1m, the module unit is a six-prism structure based on a double-shear fork unit, different module units are connected with each other through different types of connecting units, the driving of the double-shear fork unit is located on each module six corners, and the connecting units can be divided into two categories according to the working mode of the connecting unit, and there are five connecting units, the same type of connecting units have the same structure but different sizes;

[0081] The aperture expansion and surface formation of the antenna are divided into two decoupled stages through the module unit mechanism and the connecting unit mechanism. The first stage of unfolding only has each module unit perform coplanar unfolding to realize antenna aperture expansion. The second stage of unfolding only has each connecting unit perform spatial unfolding, so that each vertex of each module unit is located on the same spherical surface, and the connecting units are spread apart to make each module unit parallel and form a specific included angle, which functions to make the antenna form the required geometric shape. The technical scheme of the application can provide reference value for super-large aperture parabolic load antenna design, is beneficial to decoupling during the unfolding process, expands simple parabolic antenna design, makes the antenna adapt to a higher working frequency and have a wider frequency band, and then enhances the anti-reconnaissance performance of the antenna through frequency hopping communication technology and spread spectrum communication technology.

[0082] ​Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-ring perimeter based parallel connected network antenna based on double-shears unit, characterized by: The antenna is composed of nineteen six-prism module units with the same configuration and size, each of the six-prism module units is regarded as a ring-shaped peripheral antenna, and the whole antenna is composed of the module units in parallel, the module units are connected by connecting units, each of the six-prism module units is composed of six groups of double-shear fork units with the same configuration and size, the driving of the double-shear fork units is located at six corners of each module, the connecting units can be divided into two categories and five types according to the working mode, the connecting units of the same type have the same configuration but different sizes; The multi-ring peripheral parallel network antenna of the double-shear fork units is expanded in two stages which are decoupled from each other, in the first stage, only the module units are expanded, the included angle of each double-shear fork unit in the same module unit remains unchanged, and the module units are expanded synchronously, the thickness direction size remains unchanged during the expansion process, the module units are slender six-prisms when being folded, and the whole antenna is a low columnar structure composed of the slender six-prisms connected by the connecting units in parallel when being folded, the movement in the first stage is planar expansion, the top points on the upper and lower surfaces of each module unit always remain coplanar, and the function is to expand the aperture of the antenna, in the second stage, only the connecting units are expanded, the expansion movement in the second stage is spatial movement, the connecting units are separated from each other to make the module units in parallel and form a specific included angle, and the function is to make the antenna form a required geometric shape; The module units can be divided into two types, i.e., a topological type one module (01) and a topological type two module (02) according to the generation mode, six topological type two modules (02) close to the central module are generated by rotating the central module, six topological type two modules (02) away from the central module are generated by the topological type two modules (02) close to the central module in the same way, and the outer topological type one module (01) is generated by the outer topological type two module (02) in reverse; The connecting units are divided into two types according to the working mode, the first type only includes one type of first connecting units (11), the included angle between the plane of the first connecting units (11) and the adjacent module units remains unchanged during the expansion, the second type includes second connecting units, and is divided into four types, i.e., a second connecting unit type one (21), a second connecting unit type two (22), a second connecting unit type three (23) and a second connecting unit type four (24), the second connecting units not only expand in the plane, but also have relative rotation between the plane and the connected module units, the second connecting units include a second connecting unit side rod (201), a second connecting unit transfer side rod (203), a second connecting unit rotating female hinge (204) and a second connecting unit connection (205), the second connecting unit side rod (201) is connected with a plurality of second connecting unit rotating male hinges (202), can rotate around the symmetry axis, and the included angle between the plane of the second connecting unit side rod (201) and the adjacent module units changes during the expansion.

2. The dual-shear-fork cell based multi-loop perimeter parallel-inverted-antenna of claim 1, wherein: The first type of connecting unit (11) includes a first type of connecting unit side rod (101), a connecting unit scissor mechanism upper rotation module (102), a connecting unit scissor mechanism lower sliding module (103), a connecting unit scissor mechanism sliding limit (104), a first type of connecting unit connection (105), a connecting unit upper and lower rod connector (106), a connecting unit upper rod (107), a connecting unit lower rod (108), a connecting unit locking claw (109), a connecting unit drive spring (110), a connecting unit drive spring limit (111), a connecting unit scissor mechanism upper scissor rod (112), a connecting unit scissor mechanism lower scissor rod (113), a connecting unit scissor mechanism scissor rod adapter (114), a connecting unit scissor mechanism center hinge (115), the connecting unit has an isosceles trapezoidal shape in an unfolded state and an elongated rectangular shape in a folded state, the plane of the first type of connecting unit (11) and the module unit connected thereto do not produce relative rotation during unfolding, the first type of connecting unit (11) is fixedly connected with the module unit, and the scissor mechanism in the middle of the connecting unit is used to ensure that the entire unit has a single degree of freedom during unfolding.

3. The dual-shear-fork cell based multi-loop perimeter parallel mesh antenna of claim 2, wherein: The connecting unit has a scissor mechanism in the middle, which is used to ensure that the entire connecting unit has a single degree of freedom during unfolding, and the entire unfolding process of the connecting unit is driven by the connecting unit drive spring (110) driving the connecting unit scissor mechanism lower sliding module (103), and the connecting unit locking claw (109) is used to automatically lock after unfolding.

4. The dual-shear-fork cell based multi-loop perimeter parallel-inverted antenna of claim 1, wherein: Each module unit of the antenna has a cable net cooperating with six double scissor units at the edges thereof to form a rigid-flexible coupled structure, and the cable net structure is composed of a front cable net (31), a tension array (32), and a back cable net (33). The antenna forms a working surface by relying on the front cable net (31) attached to each module unit. The front cable nets (31) of the module units located at different positions have slightly different profiles. After a plurality of module units are connected in parallel, a parabolic working surface is formed. Each point on the upper surface of each module unit is located on a spherical surface fitted by the working surface. The front cable net (31) of each module unit and the folding and unfolding mechanism are connected by a certain compensation connection to compensate for errors.

5. The dual-shear-fork cell based multi-loop perimeter parallel mesh antenna of claim 2, wherein: The connecting unit locking claw (109) includes a connecting unit locking claw male hinge (1091), a connecting unit locking claw female hinge (1092), a connecting unit locking claw locking rod (1093), a locking rod rotation shaft (1094), a locking rod actuating torsional spring (1095), a connecting unit locking claw drive coil spring (1096), a connecting unit locking claw rotation shaft (1097), and a connecting unit locking claw fixing nut (1098).

6. The dual-shear-fork-element-based multi-loop-perimeter parallel-connected array antenna according to claim 1, wherein: The double scissor unit includes sliding rods (002), center sliding modules (003), short side sliding module groups (004), long side sliding module groups (005), push rods (006), module corner connectors (007), center scissor mechanism connectors (008), side scissor mechanism connectors (009), double scissor unit driving springs (010), and sliding module limiters (011). One single scissor mechanism (001) is arranged on each of the two different parallel axes of the sliding rod (002), achieving staggered placement of the front and rear center scissor mechanisms on the same double scissor unit. The two axes of the sliding rods (002) on the edges of the double scissor unit are each arranged with a part of the short side sliding module group (004) and the long side sliding module group (005), and the other part is connected to the sliding rod (002) on the edge of the adjacent double scissor unit, achieving synchronous expansion of the same module unit.

7. The dual-shear-fork element based multi-loop periphery parallel-connected mesh antenna according to claim 6, wherein: The single scissor mechanism (001) includes a single scissor mechanism hinge (0011), a single scissor mechanism scissor rod (0012), and a single scissor mechanism scissor rod edge connector (0013). The single scissor mechanism hinge (0011) can rotate the four single scissor mechanism scissor rods (0012) in the single scissor mechanism (001) around the same axis.

8. The dual-shear-fork cell based multi-loop perimeter parallel mesh antenna of claim 7, wherein: The single scissor mechanism hinge (0011) includes a single scissor mechanism half hinge (00111), a single scissor mechanism rotating shaft (00112), a single scissor mechanism bearing (00113), and a bearing retainer (00114). The single scissor mechanism half hinge (00111) allows the single scissor mechanism scissor rod (0012) connected thereto to rotate around the single scissor mechanism rotating shaft (00112). The single scissor mechanism rotating shaft (00112) serves as the main body of rotation and can cooperate with the bearing retainer (00114) to achieve the placement of the single scissor mechanism bearing (00113).

9. The dual-shear-fork cell based multi-loop perimeter parallel mesh antenna of claim 6, wherein: The center sliding module (003) includes a center sliding module sliding body (0031), a center sliding module adapter plate (0032), a center sliding module upper double hinge (0033), and a center sliding module bottom plate (0034). The center sliding module sliding body (0031) can make the center sliding module (003) slide on the sliding rod (002) while maintaining good coaxiality.

10. The dual-shear-fork cell based multi-loop perimeter parallel mesh antenna of claim 6, wherein: The short side sliding module group (004) includes a side sliding module sliding body (0041), a short side sliding module group adapter plate (0042), a side sliding module upper single hinge (0043), and a side sliding module bottom plate (0044). Each short side sliding module group (004) includes two side sliding module sliding bodies (0041) at an angle of 60°, which can maintain good coaxiality with the sliding rods (002) on two adjacent double scissor units, respectively. The long side sliding module group (005) includes a long side sliding module group adapter plate (0052), which is different from the short side sliding module group adapter plate (0042) in length and notch angle arrangement.

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