Integral metal truss radar radome

Abstract

The utility model discloses an integral metal truss radar radome, which comprises a spherical metal truss, a heightening barrel and a surface skin, a flange ring is arranged on the top surface of the heightening barrel, and the bottom of the spherical metal truss is fixedly connected with the flange ring on the top surface of the heightening barrel through a bolt. The surface skin covers the outer surface of the truncated spherical metal truss, and the bottom edge is fixed on a flange ring on the top surface of the heightening barrel through a connecting piece. The radar radome overcomes the defects of a traditional radome structure, not only meets the structural rigidity and safety of the radome, but also has good wave-transparent performance, reduces power loss, is simple in overall structure and convenient to erect, is suitable for working environments of small and medium-sized radar antennas, and ensures normal and reliable operation of the radar antennas.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar antenna cover manufacturing technical field especially relates to a whole metal truss radar antenna cover. BACKGROUND

[0002] The antenna cover is the structure of protecting the radar antenna from wind and rain, lightning and other external natural influences, can be required electrical performance while maintaining structure, bearing ice and snow, wind and other loads, to improve the working environment of the radar antenna, improve the reliability and service life of the equipment.

[0003] With the continuous development of modern science, the performance requirement of the radar antenna cover is improved with the widening of the use field of the antenna cover, especially under high frequency conditions, the wave transmission performance of the antenna cover is very high. The traditional antenna cover is a glass steel dielectric cover, adopts a sandwich structure, and has a glass steel skin on the inner and outer sides of the core layer. Although it can transmit waves, the power loss is relatively large, it is difficult to realize high wave transmission rate under high frequency, which affects the precision of the radar and reduces the detection distance.

[0004] The metal truss antenna cover with the metal truss of the film material with high wave transmission rate under high frequency as the skin gradually attracts attention, relying on the characteristics of low loss and high strength of the material, it provides structural reliability under the premise of meeting the wave transmission performance. The metal truss antenna cover seen on the market is composed of many planar basic triangular units to form a large antenna cover. The diameter of such antenna cover is usually more than six meters, and there is no suitable metal truss antenna cover scheme for small and medium-sized radar antennas. SUMMARY

[0005] The utility model solves the technical problem to provide a whole metal truss radar antenna cover, the radar antenna cover overcomes the defects of the traditional antenna cover structure, meets the structural rigidity and safety of the antenna cover, has good wave transmission performance, reduces power loss, and the whole structure is simple, convenient to erect, suitable for the working environment of small and medium-sized radar antennas, and ensures the normal and reliable operation of the radar antenna.

[0006] To solve the above technical problems, the whole metal truss radar antenna cover of the utility model comprises a spherical segment metal truss, a height increasing barrel and a surface skin, the height increasing barrel top surface is provided with a flange, the spherical segment metal truss bottom is fixedly connected with the flange on the height increasing barrel top surface through bolts, and the surface skin is covered on the outer surface of the spherical segment metal truss and the bottom edge is fixed on the flange on the height increasing barrel top surface through a connecting piece.

[0007] Further, the connecting piece comprises a U-shaped piece, a fixing piece and a tensioning bolt, the fixing piece is respectively provided with a large-diameter hole and a small-diameter hole at two ends, the bottom edge of the surface covering is provided with a rolled edge, one side of the U-shaped piece is fixed to the flange ring on the top surface of the height-increasing barrel through a bolt, the bottom surface of the surface covering is provided with the rolled edge in the large-diameter hole at one end of the fixing piece, and the tensioning bolt is connected to the large-diameter hole and the small-diameter hole at the other side and the other end of the fixing piece.

[0008] Further, the surface covering is an integral film material and vertically provided with an opening, the tarpaulin ring is arranged at intervals on both sides of the opening, and the polyester rope is sequentially inserted into the tarpaulin ring for horizontal tensioning.

[0009] Further, the middle and lower annular nodes of the truncated spherical metal truss are respectively provided with a circular shore and a circular pressing plate, the circular shore is centrally provided with a screw hole and is radially provided with a groove at intervals, the circular shore is arranged from inside to outside of the middle and lower annular nodes of the truncated spherical metal truss, and the rod of the truncated spherical metal truss is located in the groove of the circular shore, the circular pressing plate is centrally provided with a stud and is screwed into the screw hole of the circular shore, and the surface covering is located between the circular shore and the circular pressing plate and is fastened to the outer surface of the truncated spherical metal truss through the circular pressing plate.

[0010] Further, the circumferential surface of the height-increasing barrel is provided with a glass steel sealing plate, and is respectively provided with an access door and an exhaust port.

[0011] Further, the bottom surface of the height-increasing barrel is provided with a flange ring and is fixed to the radar base platform.

[0012] Since the overall metal truss radar antenna cover adopts the above technical scheme, that is, the antenna cover comprises a truncated spherical metal truss, a height-increasing barrel and a surface covering, the top surface of the height-increasing barrel is provided with a flange ring, the bottom of the truncated spherical metal truss is fixedly connected to the flange ring on the top surface of the height-increasing barrel through a bolt, and the surface covering is wrapped on the outer surface of the truncated spherical metal truss and the bottom edge is fixed to the flange ring on the top surface of the height-increasing barrel through a connecting piece. The radar antenna cover overcomes the defects of the structure of the traditional antenna cover, meets the structural rigidity and safety of the antenna cover, has good wave transmission performance, reduces power loss, has a simple overall structure, is convenient to erect, is suitable for the working environment of small and medium-sized radar antennas, and ensures the normal and reliable operation of the radar antenna. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in detail in combination with the drawings and embodiments:

[0014] Figure 1 It is the overall metal truss radar antenna cover structure diagram of the utility model;

[0015] Figure 2 It is the connecting piece diagram of the overall metal truss radar antenna cover of the utility model;

[0016] Figure 3 This is a schematic diagram of the surface skin opening in the integral metal truss radar radome.

[0017] Figure 4 This is a schematic diagram of the truncated spherical metal truss in the integral metal truss radar radome;

[0018] Figure 5 This is a schematic diagram of the circular top support and circular pressure plate in this integral metal truss radar radome.

[0019] Figure 6 This is a schematic diagram of the heightening barrel structure in the integral metal truss radar radome. Detailed Implementation

[0020] Implementation, for example Figure 1 As shown, the integral metal truss radar radome of this utility model includes a truncated spherical metal truss 1, a heightening barrel 2, and a surface skin 3. The top surface of the heightening barrel 2 is provided with a flange ring 21. The bottom of the truncated spherical metal truss 1 is fixedly connected to the flange ring 21 on the top surface of the heightening barrel 2 by bolts. The surface skin 3 covers the outer surface of the truncated spherical metal truss 1 and its bottom edge is fixed to the flange ring 21 on the top surface of the heightening barrel 2 by a connector 4.

[0021] Preferred, such as Figure 2 As shown, the connecting component 4 includes a U-shaped component 41, a fixing component 42, and a tensioning bolt 43. The fixing component 41 has countersunk holes with a smaller outer diameter and a larger inner diameter at both ends. The bottom edge of the surface skin 3 has a rolled edge 31. One side of the U-shaped component 41 is fixed to the flange ring 21 on the top surface of the heightening barrel 2 by bolts 44. The rolled edge 31 on the bottom surface of the surface skin 3 is located in the countersunk hole at one end of the fixing component 42. The tensioning bolt 43 connects the other side of the U-shaped component 41 to the countersunk hole at the other end of the fixing component 42. During installation, tightening the tensioning bolt 43 causes the surface skin 3 to be vertically tensioned to the outer surface of the truncated spherical metal truss 1.

[0022] Preferred, such as Figure 3 As shown, the surface skin 3 is a single sheet of membrane material with a vertical opening 32. Tent rings 33 are spaced apart on both sides of the opening 32, and polyester ropes 34 are sequentially threaded through the tent rings 33 for horizontal tensioning. Through the vertical opening 32 of the surface skin 3, the tent rings 33 on both sides of the opening 32, and the polyester ropes 34 threaded through the tent rings 33, the surface skin 3 is horizontally tensioned to the outer surface of the truncated spherical metal truss 1 by the tensioning of the polyester ropes 34.

[0023] Preferred, such as Figure 4 and Figure 5As shown, the middle and lower annular nodes of the truncated spherical metal truss 1 are respectively provided with a circular centering 5 and a circular pressing plate 6, the circular centering 5 is centrally provided with a screw hole 51 and is radially spaced provided with a groove 52, the circular centering 5 is arranged from inside to outside at the middle and lower annular nodes of the truncated spherical metal truss 1, and the rod 11 of the truncated spherical metal truss 1 is located in the groove 52 of the circular centering 5, the circular pressing plate 6 is centrally provided with a stud 61 and is screwed in the screw hole 51 of the circular centering 5, the surface skin 3 is located between the circular centering 5 and the circular pressing plate 6 and is fastened to the outer surface of the truncated spherical metal truss 1 by the circular pressing plate 6. The circular centering 5 and the circular pressing plate 6 can tightly attach the surface skin 3 to the outer surface of the truncated spherical metal truss 1, avoiding the surface skin 3 from being inflated by the air flow.

[0024] By applying tension in two directions to the surface skin, the surface skin can have sufficient stress to ensure the stability and safety of the overall structure.

[0025] Preferably, the circumferential surface of the heightening barrel 2 is provided with a glass steel sealing plate 22, and is respectively provided with an access door hole 23 and an exhaust port 24. The glass steel sealing plate 22 is used to reduce the overall weight.

[0026] Preferably, the bottom surface of the heightening barrel 2 is provided with a flange 25 and is fixed to the radar base platform 7.

[0027] The overall diameter of the antenna cover is 2.3 meters, the truncated spherical height is 1.765 meters, and the overall weight is about 200 kg. Compared with the traditional metal truss antenna cover which is assembled from multiple triangular metal elements and triangular membrane skins, the truncated spherical metal truss of the present antenna cover is a complete structure, and the surface skin is also a complete membrane, so it has better structural stability and better wave transmission performance, and is light in weight and easy to erect. While ensuring the structural strength, the wave transmission performance is better, completely meeting the working environment of small and medium-sized radar antennas, and ensuring the normal and reliable operation of the radar antennas.

Claims

1. A one-piece metal truss radome, characterized by: The application relates to a kind of spherical metal truss, heightening bucket and surface skin, the flange ring is equipped on the top surface of the heightening bucket, the bottom of the spherical metal truss is fixedly connected with the flange ring on the top surface of the heightening bucket by bolt, and the surface skin is covered on the outer surface of the spherical metal truss and is fixed on the flange ring on the top surface of the heightening bucket by connecting piece.

2. The one-piece metal truss radome according to claim 1, wherein: The connecting piece comprises U-shaped piece, fixing piece and tension bolt, the both ends of the fixing piece are respectively equipped with outer small and inner large step bore, the bottom edge of the surface skin is equipped with rolled edge, one side of the U-shaped piece is fixed on the flange ring on the top surface of the heightening bucket by bolt, the bottom surface rolled edge of the surface skin is equipped in the step bore of one end of the fixing piece, and the tension bolt is connected with the step bore of the other end of the fixing piece on the other side of the U-shaped piece.

3. The one-piece metal truss radome according to claim 1, wherein: The surface skin is whole film material and vertically equipped with opening, the tarpaulin ring is spaced apart on the both sides of the opening, and polyester rope is sequentially inserted into the tarpaulin ring for horizontal direction tension.

4. The one-piece metal truss radome of claim 1, wherein: The middle and lower annular nodes of the spherical metal truss are respectively equipped with circular centering and circular pressing plate, the circular centering is centrally equipped with screw hole and is radially spaced apart with sink, the circular centering is arranged from inside to outside in the middle and lower annular nodes of the spherical metal truss, and the rod of the spherical metal truss is located in the sink of the circular centering, the circular pressing plate is centrally equipped with stud and is screwed in the screw hole of the circular centering, the surface skin is located between the circular centering and the circular pressing plate and is fastened on the outer surface of the spherical metal truss by the circular pressing plate.

5. The one-piece metal truss radome of claim 1, wherein: The circumferential surface of the heightening bucket is equipped with glass steel sealing plate and is respectively equipped with access door and exhaust port.

6. The one-piece metal truss radome of claim 1, wherein: The bottom surface of the heightening bucket is equipped with flange ring and is fixed on radar base platform.

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