A self-supporting large-span antenna panel mechanism

Abstract

The application discloses a kind of self-supporting large-span antenna panel mechanism, belong to antenna field, it includes reflecting surface component, space layout unit and adjusting mechanism;Multiple reflecting surface components are fixed on space layout unit by adjusting mechanism.The application patent is fixed by space layout unit and several adjusting mechanisms, the height of adjusting mechanism is adjusted to meet the requirement of large-span reflecting surface, several reflecting surface components are connected with adjusting mechanism, and an antenna panel mechanism is formed.The application patent provides a kind of self-supporting large-span antenna panel mechanism suitable for large area, which is simple in structure, easy to install, light in weight and good in rigidity, can be divided into parts, transportation cost is greatly reduced, reliability is high, and is very suitable for super large area antenna or flat panel antenna.

Description

Technical Field

[0001] This invention relates to the field of antennas, and in particular to a self-supporting antenna panel mechanism suitable for large-area, wide-span antennas or flat panel antennas. Background Technology

[0002] With the significant advancements in satellite communication and deep space exploration, antennas have played a crucial role. The primary function of an antenna is to receive and transmit signals through a reflective surface of a specific size. The antenna reflector is a key component. Traditional large antennas consist of a front metal skin plate and a back metal radiating beam connected together by riveting or bonding and fixed to a central body. While this structure offers high precision, it is complex, costly to produce, and time-consuming, making it unsuitable for large-area (or ultra-large-area) antennas with wide spans. Furthermore, it suffers from high transportation costs and poor reliability. Based on the overall design of a large single-aperture radio telescope, the telescope will inevitably utilize a self-supporting, wide-span antenna panel mechanism. To minimize interference from artificial electromagnetic sources, the project will construct a large single-aperture radio telescope in a remote location specifically for observation, detecting important signals emitted from deep space to reveal the mysteries of cosmic structure and dark energy.

[0003] Invention Patent Content

[0004] The technical problem to be solved by this invention is to provide a self-supporting antenna panel mechanism that is simple in structure, easy to install, lightweight, and has good rigidity, suitable for large areas and large spans.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this invention patent is as follows:

[0006] A self-supporting large-span antenna panel mechanism includes multiple sets of reflector components, which are spliced ​​together to form a complete reflector surface; characterized in that it further includes a spatial layout component 4 and an adjustment component 5; adjacent reflector components are connected through the adjustment component, the spatial layout component is located below the adjustment component, and adjacent adjustment components are connected through the spatial layout component;

[0007] The reflective surface assembly includes a reflective panel and a support plate; the reflective panel is connected to the support plate via weight-reducing ribs provided on the upper surface of the support plate;

[0008] The adjustment assembly is located at the node formed by multiple sets of reflective surface assemblies, and includes a spring assembly, a fixed base, a central shaft, a positioning surface, and a back frame node ball. The spring assembly, fixed base, positioning surface, and back frame node ball are sequentially mounted on the central shaft from top to bottom. The fixed base is fixedly connected to the lower edge of the outer edge of the support plate. The spring assembly includes multiple springs, the number of which corresponds to the number of reflective surface assemblies at the node. Each spring is mounted on a pin, which is vertically positioned in the pin hole of the fixed base and can move along the axis of the pin hole. The spring is located below the upper edge of the outer edge of the support plate. A fine-tuning screw is also provided between the fixed base and the positioning surface. The top end of the fine-tuning screw is threaded to the fixed base, and the bottom end of the fine-tuning screw abuts against the upper surface of the positioning surface.

[0009] The central shaft is also provided with a ball sleeve, and the back frame node ball covers the outer surface of the ball sleeve. The central shaft is connected to the back frame node ball by a ball hinge through the ball sleeve.

[0010] The spatial layout component includes connecting rods and positioning heads; the positioning heads are located below the center of the smallest diameter unit circle around multiple back frame node balls; adjacent back frame node balls, adjacent positioning heads, and adjacent positioning heads and back frame node balls are all connected by connecting rods.

[0011] Furthermore, the top end of the pin is provided with an anti-detachment block to prevent the spring from coming off, the pressure block is located directly above the anti-detachment block, the top end of the spring is fixedly connected to the anti-detachment block, and the bottom end of the spring abuts against the fixed seat.

[0012] Furthermore, the adjustment assembly also includes positioning pins, each pin having a vertical groove and a fixing seat having a through hole; the positioning pin is inserted into the vertical groove through the corresponding through hole.

[0013] Furthermore, the top of the back frame node ball is provided with a planar positioning plate; the lower surface of the support plate is provided with a strip groove; the upper surface of the planar positioning plate is fixed with a planar positioning pin, the top ball of the planar positioning pin is hinged with the ball of the strip groove, and can move freely in the strip groove;

[0014] A fine-tuning ring is fixed at the bottom of the back frame node ball; a plurality of fine-tuning threaded holes are evenly arranged on the outer edge of the fine-tuning ring; the angle fine-tuning screw is threadedly connected to the fine-tuning threaded hole, and the inner end of the angle fine-tuning screw abuts against the central shaft.

[0015] Furthermore, each reflective surface component at the node corresponds to a groove; the same node includes two mutually perpendicular grooves.

[0016] Furthermore, the adjustment assembly also includes a differential mechanism; the differential mechanism includes a ball joint rod, a micro-motion knob, a fixed ring, and a positioning ring; the positioning ring is fitted on the central shaft, the top end of the positioning ring is the positioning surface, the ball joint rod is fitted on the outside of the positioning ring, the top end of the ball joint rod is the ball sleeve, a groove is provided in the middle position of the ball joint rod, a set screw is provided in the back frame node ball, the inner end of the set screw is constrained in the groove and can rotate relative to the groove;

[0017] The fixed ring is fixedly connected to the bottom end of the ball joint rod; the micro-motion knob is sleeved on the bottom end of the positioning ring, and the inner side of the lower half of the micro-motion knob is connected to the positioning ring through a differential thread; the upper half of the micro-motion knob is sleeved on the outer surface of the fixed ring and connected by a bearing, the surface of the micro-motion knob is provided with a scale, and the outer surface of the fixed ring is provided with a reference vertical line.

[0018] Furthermore, a pressure block is provided at the top of the central shaft, and the pressure block has a cross-shaped structure; the pressure block is located below the upper edge of the outer edge of the support plate; an adjustment rod is provided at the end of the central shaft, and the adjustment rod is perpendicular to the central shaft core.

[0019] Furthermore, both ends of the connecting rod are provided with connecting joints; the connecting rod is cylindrical, and its outer wall is provided with an elongated hole for tightening bolts; the connecting joints are connected to the positioning head or the back frame node ball by bolts.

[0020] Furthermore, a second spring is provided between the lower surface of the positioning surface and the top end of the ball joint rod.

[0021] Furthermore, a rotational constraint is provided between the ball joint rod and the positioning ring, allowing the positioning ring to move freely along the central axis of the ball joint rod.

[0022] The beneficial effects of adopting the above technical solution are as follows:

[0023] By fixing the spatial layout unit with several adjustment mechanisms, and then adjusting the height of the adjustment mechanisms to meet the requirements of a large-span reflector, and finally connecting several reflector components with the adjustment mechanisms, an antenna panel mechanism is formed. Several antenna panel mechanisms fixed on the antenna support constitute a large-scale reflector system. Weight-reducing ribs and support plates are included at the outer edge and center line of the reflector components, giving the reflector panel sufficient rigidity. The square pyramidal reflector panel is very suitable for splicing large-area, large-span antenna panels, allowing for modular assembly, significantly reducing transportation costs, and offering high reliability. Several reflector panels fixed on the antenna support form a large-scale reflector system, satisfying the requirement for precise modular installation, making it highly suitable for large-area, large-span antenna panel systems. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this invention patent;

[0025] Figure 2 This is a schematic diagram of the structure of the reflective surface component of this invention patent;

[0026] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0027] Figure 4 yes Figure 3 Cross-sectional view.

[0028] Figure 5 yes Figure 4 Partial structural diagram.

[0029] Figure 6 yes Figure 1 Partial structural diagram.

[0030] In the diagram: 1. Reflective panel, 2. Support plate, 3. Reflective surface component, 4. Spatial layout unit, 5. Adjustment mechanism, 6. Weight reduction rib, 7. Connecting component, 101. First spring, 102. Fine adjustment screw, 103. Fixing seat, 104. Planar positioning plate, 105. Back frame node ball, 106. Angle fine adjustment screw, 107. Micro-motion knob, 108. Locking ring, 109. Right angle constraint groove, 110. Adjusting rod, 111. Second spring, 112. Ball joint rod, 113. Nylon pressure ring, 114. Pressure ring, 115. Fastening screw, 117. Central shaft, 118. Positioning ring, 118-1. Positioning surface, 119. Fixed ring, 120. Planar positioning pin. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 The diagram shows the structure of this invention. A self-supporting large-span antenna panel mechanism includes a reflective surface component 3, a spatial layout unit 4, and an adjustment mechanism 5. Multiple reflective surface components 3 are fixed to the spatial layout unit 4 via the adjustment mechanism 5. The spatial layout unit 4 is a two-layered regular square pyramid structure, with a distance of 0.8m-3m between the two layers and a pitch design of 0.7m-3.6m. Each side of the regular square pyramid consists of 8 connecting tubes. Adjacent regular square pyramids are fixedly connected to the lower regular square pyramid via support rods. The adjustment mechanism 5, made of rust-resistant aluminum, is used to adjust the height of the reflective surface components 3 to form a large-span reflective surface structure. It includes an adjusting bolt screwed onto the spatial layout unit 4, with a connecting component 7 fixed to the head of the adjusting bolt. Multiple reflective surface components 3 are connected to the connecting component 7.

[0033] See Figure 2As shown, the reflective surface component 3 includes a reflective panel 1 with weight-reducing ribs 6; wherein, the reflective panel 1 is composed of a thick aluminum plate and weight-reducing ribs, the purpose of which is to ensure the requirements of a certain electromagnetic wave frequency band and meet the requirement of light weight. The reflective panel 1 can be square, parallelogram, or rhomboid, and has a support plate 2 on its outer edge; the weight-reducing ribs 6 can be straight ribs, variable cross-section ribs, curved ribs, or topological ribs; in this embodiment, the reflective panel 1 is square, and there are support plates 2 on its four midline lines. The support plate 2 and the connecting component 7 are both made of aluminum alloy, which is a commonly used aluminum profile in the industry.

[0034] The spatial layout unit is a regular square pyramid structure consisting of two layers, and adjacent regular square pyramids are fixedly connected by support rods.

[0035] The adjustment mechanism includes an adjustment bolt screwed onto the spatial layout unit, with a connecting component fixed to the head of the adjustment bolt, and multiple reflective surface components connected to the connecting component.

[0036] The reflective surface component includes a reflective panel with weight-reducing ribs, and a support plate is riveted to the outer edge of the reflective panel.

[0037] The reflective panel is quadrilateral, and support plates are arranged on its four sides.

[0038] The reflective panel is square, parallelogram, or rhomboid.

[0039] The weight-reducing reinforcement can be a straight reinforcement, a variable cross-section reinforcement, a curved reinforcement, or a topological reinforcement.

[0040] The manufacturing and assembly process of this invention patent is as follows: First, weight-reducing ribs are processed on a thick aluminum plate to make it full of straight ribs, variable cross-section ribs, curved ribs, or topological ribs 6. Then, the thick aluminum plate is straightened and surface oxidized. It is then cut into quadrilateral, parallelogram, or rhomboid reflective panels 1 according to the final required size. The outer edge of the reflective panel 1 is connected to the support plate 2 to form a reflective surface component 3. The spatial layout unit 4 is fixed with several adjustment mechanisms 5. Then, the height of the adjustment mechanisms 5 is adjusted to meet the requirements of a large-span reflective surface. Several reflective surface components 3 are connected with adjustment mechanisms 5 to form an antenna panel mechanism. Several antenna panel mechanisms are fixed on the antenna support to form a large-scale reflective surface system. The advantage of this new approach is that it meets the requirements of fine installation by breaking down the whole into parts. It also uses a similar combination method (several units form a mechanism, and several mechanisms form a system), which is very suitable for large-area, large-span large antenna panel systems.

[0041] Reference Figure 3 , Figure 4 and Figure 5This is the adjustment mechanism of this embodiment; it includes a spring assembly, a fixed seat, a central shaft, a positioning surface, and a back frame node ball; the spring assembly, fixed seat, positioning surface, and back frame node ball are sequentially mounted on the central shaft from top to bottom;

[0042] The fixed base is fixedly connected to the lower edge of the outer edge of the support plate; the spring assembly includes multiple first springs, the number of springs corresponding to the number of reflective surface assemblies at the nodes; each first spring is fitted onto a pin, the pin is perpendicular to the pin hole in the fixed base, and the pin can move along the axis of the pin hole; the spring is located below the upper edge of the outer edge of the support plate; a fine-tuning screw is also provided between the fixed base and the positioning surface, the top end of the fine-tuning screw is threaded to the fixed base, and the bottom end of the fine-tuning screw abuts against the upper surface of the positioning surface;

[0043] The central shaft is also provided with a ball sleeve, and the back frame node ball covers the outer surface of the ball sleeve. The central shaft is connected to the back frame node ball by ball hinge through the ball sleeve.

[0044] The top of the pin is provided with an anti-dislodgement block to prevent the spring from coming out;

[0045] It also includes locating pins, each pin having a vertical groove and a through hole on the fixing seat; the locating pin is inserted into the vertical groove through the corresponding through hole.

[0046] Reference Figure 6 The top of the back frame node ball is provided with a planar positioning plate; the lower surface of the support plate is provided with a strip groove; the upper surface of the planar positioning plate is fixed with a planar positioning pin, the top ball of the planar positioning pin is hinged with the ball of the strip groove, and can move freely in the strip groove;

[0047] A fine-tuning ring is fixed at the bottom of the back frame node ball; a plurality of fine-tuning threaded holes are evenly arranged on the outer edge of the fine-tuning ring; the angle fine-tuning screw is threadedly connected to the fine-tuning threaded hole, and the inner end of the angle fine-tuning screw abuts against the central shaft.

[0048] Each reflective surface component at a node corresponds to a groove; the same node includes two grooves that are perpendicular to each other.

[0049] The adjustment mechanism also includes a differential mechanism; the differential mechanism includes a ball joint rod, a micro-motion knob, a fixed ring, and a positioning ring; the positioning ring is fitted on the central shaft, the top of the positioning ring is the positioning surface, the ball joint rod is fitted on the outside of the positioning ring, the top of the ball joint rod is the ball sleeve, a groove is provided in the middle of the ball joint rod, a set screw is provided in the back frame node ball, the inner end of the set screw is constrained in the groove and can rotate relative to the groove;

[0050] The fixed ring is fixedly connected to the bottom end of the ball joint rod; the micro-motion knob is sleeved on the bottom end of the positioning ring, and the inner side of the lower half of the micro-motion knob is connected to the positioning ring through a differential thread; the upper half of the micro-motion knob is sleeved on the outer surface of the fixed ring, the surface of the micro-motion knob is provided with a scale, and the outer surface of the fixed ring is provided with a reference vertical line.

[0051] The top of the central shaft is provided with a pressure block, which has a cross-shaped structure; the pressure block is located below the upper edge of the outer edge of the support plate; the end of the central shaft is provided with an adjusting rod, which is perpendicular to the central shaft.

[0052] A second spring is provided between the lower surface of the positioning surface and the top end of the ball joint rod.

[0053] A rotational constraint is provided between the ball joint rod and the positioning ring, and the positioning ring can move freely along the central axis of the ball joint rod.

[0054] The rotation of the adjusting rod causes the cross-shaped pressure block at the top of the central shaft to rotate. During installation, the central shaft drives the cross-shaped pressure block to press against the top of the anti-detachment block. After installation, the cross-shaped pressure block rotates and detaches from the top of the anti-detachment block, making installation and adjustment easier.

[0055] By rotating the angle fine-tuning screw, the inner end of the screw abuts against the outer surface of the ball joint, causing it to shift slightly at a small angle, thus fine-tuning the angle. The adjustable angle is approximately ±3 degrees.

[0056] The ball joint sleeve of the ball joint rod is hinged to the ball joint of the back frame node through a pressure ring and a nylon pressure block; the angle fine-tuning screw is pressed against the outer wall of the ball joint rod.

[0057] The fine-tuning knob is connected to the fixed ring bearing on the ball joint rod. When the fine-tuning knob is rotated, the differential thread drives the positioning ring to move up and down, thereby adjusting the position of the positioning surface and further changing the position of the fixed seat.

Claims

1. A self-supporting large-span antenna panel mechanism, comprising multiple sets of reflective surface assemblies (3), wherein the multiple sets of reflective surface assemblies are spliced ​​together to form a complete reflective surface; characterized in that, It also includes a spatial layout component (4) and an adjustment component (5); adjacent reflective surface components are connected through the adjustment component, the spatial layout component is located below the adjustment component and adjacent adjustment components are connected through the spatial layout component; The reflective surface assembly includes a reflective panel and a support plate; the reflective panel is connected to the support plate via weight-reducing ribs provided on the upper surface of the support plate; the support plate is located at the outer edge of the reflective panel; The adjustment assembly is located at the node formed by multiple sets of reflective surface assemblies, and includes a spring assembly, a fixed seat, a central shaft, a positioning surface, and a back frame node ball; the spring assembly, fixed seat, positioning surface, and back frame node ball are sequentially mounted on the central shaft from top to bottom; the fixed seat is fixedly connected to the lower edge of the outer edge of the support plate; The spring assembly includes multiple springs, the number of which corresponds to the number of reflective surface assemblies at the nodes; each spring is mounted on a pin, the pin being vertically positioned within the pin hole of the fixed base, and the pin being movable along the axis of the pin hole; the top end of the spring acts on the fixed base via an anti-detachment block, and the bottom end of the spring rests against the fixed base; the spring is located below the upper edge of the outer edge of the support plate; a fine-tuning screw is also provided between the fixed base and the positioning surface, the top end of the fine-tuning screw being threadedly connected to the fixed base, and the bottom end of the fine-tuning screw resting against the upper surface of the positioning surface; The central shaft is also provided with a ball sleeve, and the back frame node ball covers the outer surface of the ball sleeve. The central shaft is connected to the back frame node ball by a ball hinge through the ball sleeve. The spatial layout component includes connecting rods and positioning heads; the positioning heads are located below the center of the smallest diameter unit circle around multiple back frame node balls; adjacent back frame node balls, adjacent positioning heads, and adjacent positioning heads and back frame node balls are all connected by connecting rods. The spatial layout component is a regular square pyramid structure consisting of two layers, with a distance of 0.8m-3m between the two layers and a pitch of 0.7m-3.6m. Each side consists of 8 connecting rods; adjacent regular square pyramids are fixedly connected by support rods.

2. The self-supporting large-span antenna panel mechanism according to claim 1, characterized in that, The top of the pin is provided with an anti-detachment block to prevent the spring from coming out. The pressure block at the top of the central shaft is located directly above the anti-detachment block. The top of the spring is fixedly connected to the anti-detachment block, and the bottom of the spring abuts against the fixed seat.

3. The self-supporting large-span antenna panel mechanism according to claim 1, characterized in that, The adjustment assembly also includes positioning pins, each pin having a vertical groove and a fixing seat having a through hole; the positioning pin is inserted into the vertical groove through the corresponding through hole.

4. The self-supporting large-span antenna panel mechanism according to claim 1, characterized in that, The top of the back frame node ball is provided with a flat positioning plate; the lower surface of the support plate is provided with a strip groove; the upper surface of the flat positioning plate is fixed with a flat positioning pin, the top ball of the flat positioning pin is hinged with the ball of the strip groove, and the top ball can move freely in the strip groove; A fine-tuning ring is fixed at the bottom of the back frame node ball; a plurality of fine-tuning threaded holes are evenly arranged on the outer edge of the fine-tuning ring; the angle fine-tuning screw is threadedly connected to the fine-tuning threaded hole, and the inner end of the angle fine-tuning screw abuts against the central shaft.

5. The self-supporting large-span antenna panel mechanism according to claim 4, characterized in that, Each reflective surface component at the node corresponds to a strip groove.

6. The self-supporting large-span antenna panel mechanism according to claim 4, characterized in that, The adjustment assembly also includes a differential mechanism; the differential mechanism includes a ball joint rod, a micro-motion knob, a fixed ring, and a positioning ring; the positioning ring is fitted on the central shaft, the top end of the positioning ring is the positioning surface, the ball joint rod is fitted on the outside of the positioning ring, the top end of the ball joint rod is the ball sleeve, a groove is provided in the middle position of the ball joint rod, a set screw is provided in the back frame node ball, the inner end of the set screw is constrained in the groove and can rotate relative to the groove; The fixed ring is fixedly connected to the bottom end of the ball joint rod; the micro-motion knob is sleeved on the bottom end of the positioning ring, and the inner side of the lower half of the micro-motion knob is connected to the positioning ring through a differential thread; the upper half of the micro-motion knob is sleeved on the outer surface of the fixed ring and connected by a bearing, the surface of the micro-motion knob is provided with a scale, and the outer surface of the fixed ring is provided with a reference vertical line.

7. The self-supporting large-span antenna panel mechanism according to claim 1, characterized in that, The top of the central shaft is provided with a pressure block, which has a cross-shaped structure; the pressure block is located below the upper edge of the outer edge of the support plate; the end of the central shaft is provided with an adjustment rod, which is perpendicular to the central shaft core.

8. The self-supporting large-span antenna panel mechanism according to claim 1, characterized in that, Both ends of the connecting rod are provided with connecting joints; the connecting rod is cylindrical and has an elongated hole on its outer wall for tightening bolts; the connecting joints are connected to the positioning head or the back frame node ball by bolts.

9. A self-supporting large-span antenna panel mechanism according to claim 6, characterized in that, A second spring is provided between the lower surface of the positioning surface and the top end of the ball joint rod.

10. A self-supporting large-span antenna panel mechanism according to claim 6, characterized in that, A rotational constraint is provided between the ball joint rod and the positioning ring, and the positioning ring can move up and down along the central axis of the ball joint rod.

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