CN104502187A - Base for performing decoupling load test on reflective surface angle and displacement of spaceborne cylindrical antenna - Google Patents

Abstract

A pedestal for decoupling load tests on the angle and displacement of a space-borne cylindrical antenna reflection surface, which belongs to the technical field of space-borne cylindrical antennas, solves the problem of coupling between the angle and displacement load applied at both ends of the cylindrical antenna. It includes leveling base, three-claw base connector, base platform adapter, angle displacement platform and installation connector. The angle displacement platform is connected to the leveling base through the three-claw base connector and base platform adapter. On the seat; on the angular displacement platform, there is an installation connector, the installation connector adopts a cuboid structure, and a flange is arranged at the lower end of the installation connector, and the flange is fixedly connected with the upper surface of the angle displacement platform by screws. The present invention It can be used to decouple the angle of the reflector of the cylindrical antenna and the displacement load.

Description

Base for decoupling loading test of spaceborne cylindrical antenna reflective surface angle and displacement

technical field

The invention belongs to the technical field of space-borne cylindrical antennas, and in particular relates to a base for decoupling loading tests of angle and displacement of a reflection surface of a space-borne cylindrical antenna.

Background technique

The forming principle of a type of high-precision spaceborne cylindrical antenna is to apply a designed angle and displacement load on both ends of the reflecting surface to achieve a high-precision surface configuration. During the development and deployment of the cylindrical antenna, it was found that there is a coupling phenomenon between the angle applied at both ends of the cylindrical antenna and the displacement load, that is, the lines at the two ends of the cylindrical antenna cannot always be guaranteed to coincide with the axis of the rotation axis, resulting in the occurrence of an impact on the reflective surface. When the angular load is applied, a certain displacement occurs on the end face of the reflective surface; when a displacement load is applied to the reflective surface, the angle of the end face of the reflective surface also changes. This type of coupling phenomenon is not easy to accurately load the angle and displacement of the end face of the cylindrical antenna, which seriously affects the test of the accuracy of the reflective surface of the cylindrical antenna.

Contents of the invention

The purpose of the present invention is to solve the problem of the coupling phenomenon between the angle and the displacement load applied at both ends of the cylindrical antenna, and to provide a base for decoupling loading tests of the angle of the reflective surface of the spaceborne cylindrical antenna and the displacement, and its technical solution as follows:

A base for the decoupling loading test of the angle and displacement of the space-borne cylindrical antenna reflection surface, which includes a leveling base, a three-claw base connector, a base platform adapter, an angular displacement platform and a mounting connector, and the angle The displacement platform is connected to the leveling base through the three-claw base connector and the base platform adapter, the three-claw base connector is set on the leveling base, and the base platform adapter includes the base connection The connection end of the connector, the C-shaped column shell and the platform connection flange, the connection end of the base connector is composed of a circular plate and a vertical edge located on the lower edge of the circular plate, and the inner diameter of the vertical edge coincides with the diameter of the three-jaw base connector , There is a round hole in the center of the circular plate, the connecting end of the base connector is set on the upper end of the three-claw base connector, and the connecting bolts contained in the upper end of the three-claw base connector are passed through the round hole and then tightened by the nut Fixed, there is a notch on one side of the connection end of the base connector, so that the vertical edge will not be blocked by the locking bolt contained on the side of the three-claw base connector; the connection end of the base connector is connected to the platform through a C-shaped column shell The connecting flange is fixedly connected, and the gap of the C-shaped column shell is convenient for extending the wrench into the nut to operate. The platform connecting flange and the angular displacement platform are fixedly connected by screws;

An installation connector is provided on the angle displacement platform, and the installation connector adopts a cuboid structure. There are screw holes on the installation connector, and a flange is provided at the lower end of the installation connector. The upper surface is fixedly connected, the projection of one side A of the installation connector on the upper surface of the angular displacement platform coincides with the diameter A of the upper surface of the angular displacement platform, and one of the two sides adjacent to the side A of the installation connector B There is a gap between the projection of the upper surface of the angular displacement platform and the diameter B perpendicular to the diameter A of the upper surface of the angular displacement platform, so that the projection of the connecting part of the cylindrical antenna reflection surface and the installation connector on the upper surface of the angular displacement platform Coincides with diameter B.

The beneficial effects of the present invention are: the present invention can effectively eliminate the coupling phenomenon of the angle and the displacement load when the reflective surface of the cylindrical antenna is loaded, and the reasonable arrangement of several bases is beneficial to realize the accurate loading of the angle and displacement of the cylindrical antenna;

The invention can be used in other test devices that need to apply precise angles and displacements, and has a wide range of applications.

Description of drawings:

FIG. 1 is a schematic structural diagram of Embodiment 2 of the present invention;

Figure 2 is an exploded view of Figure 1;

Fig. 3 is a structural schematic diagram of a base platform adapter in the present invention;

Fig. 4 is a schematic diagram of an installation connector according to Embodiment 2 of the present invention;

Fig. 5 is an exploded view of Fig. 4;

FIG. 6 is a schematic top view of Embodiment 2 of the present invention.

Detailed ways:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a base for decoupling loading test of the angle and displacement of the space-borne cylindrical antenna reflection surface, which includes a leveling base 1, a three-claw base Seat connector 2, base platform adapter 3, angle displacement platform 4 and installation connector 5, angle displacement platform 4 is connected to leveling base 1 through three-claw base connector 2 and base platform adapter 3 Above, the three-jaw base connector 2 is set on the leveling base 1, and the base platform adapter 3 includes a base connector connection end 3-1, a C-shaped column shell 3-2 and a platform connecting flange 3-3. The base connector connection end 3-1 is composed of a circular plate 3-1-1 and a vertical edge 3-1-2 located on the lower edge of the circular plate 3-1-1. The vertical edge 3-1- The inner diameter of 2 coincides with the diameter of the three-claw base connector 2, and a circular hole 3-1-3 is arranged at the center of the circular plate 3-1-1, and the connecting end 3-1 of the base connector is arranged on the three-claw base connector. The upper end of the base connector 2, the connecting bolts contained in the upper end of the three-jaw base connector 2 pass through the round hole 3-1-3 and then are fixed by nuts, and are set on one side of the base connector connection end 3-1 There is a gap 3-1-4 so that the vertical edge 3-1-2 will not be blocked by the locking bolt contained on the side of the three-jaw base connector 2; the base connector connection end 3-1 passes through a C-shaped column shell 3-2 is fixedly connected with the platform connecting flange 3-3, the gap of the C-shaped column shell 3-2 is convenient for inserting a wrench into the nut to operate, and the platform connecting flange 3-3 is fixedly connected with the angular displacement platform 4 through screws ;

An installation connector 5 is provided on the angular displacement platform 4, the installation connector 5 adopts a cuboid structure, a screw hole 5-1 is arranged on the installation connector 5, and a flange 5-2 is arranged at the lower end of the installation connector 5 , the flange plate 5-2 is fixedly connected to the upper surface of the angular displacement platform 4 by screws, and the projection of one side A5-3 of the installation connector 5 on the upper surface of the angular displacement platform 4 and the diameter A4- of the upper surface of the angular displacement platform 4 1 coincides, the projection of one side B5-4 on the upper surface of the angular displacement platform 4 of the two sides adjacent to the side A5-3 of the installation connector 5 is perpendicular to the diameter A4-4 of the upper surface of the angular displacement platform 4 There is a gap between the diameters B4-2 of 1, so that the projection of the connecting part of the cylindrical antenna reflection surface and the installation connector 5 on the upper surface of the angular displacement platform 4 coincides with the diameter B4-2.

Embodiment 1, the installation connector 5 is fixedly connected to the flange plate 5-2, calculated according to the thickness of the reflective surface of the common cylindrical antenna and the thickness of the edge support plate of the reflective surface of the cylindrical antenna, the side B5-4 is on the angular displacement platform 4 The gap between the projection of the upper surface and the diameter B4-2 is 3.125 mm.

Embodiment 2, the installation connector 5 is slidingly connected to the flange 5-2, a slideway 5-2-1 is provided on the upper surface of the flange 5-2, and a slideway 5-2-1 is provided on the lower surface of the installation connector 5. The slide block 5-2-2, the slide block 5-2-2 on the lower surface of the connecting piece 5 is installed in the slideway 5-2-1 on the upper surface of the flange plate 5-2, and the slide block 5-2-2 on the slide block 5-2-2 A jacking screw 5-2-3 is arranged on the top, so that the position of the installation connector 5 can be fixed, and the projection of a side A5-3 of the installation connector 5 parallel to the slideway 5-2-1 on the upper surface of the angular displacement platform 4 Coincident with the diameter A4-1 of the upper surface of the angular displacement platform 4, the projection and angle of one side B5-4 of the two sides adjacent to the side A5-3 of the installation connector 5 on the upper surface of the angular displacement platform 4 The distance between the diameter B4-2 and the diameter B4-2 perpendicular to the diameter A4-1 on the upper surface of the displacement platform 4 can be adjusted by sliding the slider 5-2-2, so that the connecting part of the cylindrical antenna reflection surface with different thicknesses and the installation connector 5 The projection on the upper surface of the angular displacement platform 4 can coincide with the diameter B4-2.

Claims (4)

1. A base for a spaceborne cylindrical antenna reflector angle and displacement decoupling loading test, characterized in that it comprises an angle displacement platform (4) and an installation connector (5), and is arranged on the angle displacement platform (4) There is an installation connector (5), the installation connector (5) adopts a cuboid structure, screw holes (5-1) are arranged on the installation connector (5), and a flange is arranged at the lower end of the installation connector (5) (5-2), the flange (5-2) is fixedly connected with the upper surface of the angular displacement platform (4) by screws, and one side A (5-3) of the connecting piece (5) is installed on the angular displacement platform (4 ) projection on the upper surface coincides with the diameter A (4-1) of the upper surface of the angular displacement platform (4), and one of the two sides adjacent to this side A (5-3) of the mounting connector (5) There is a gap between the projection of the side B (5-4) on the upper surface of the angular displacement platform (4) and the diameter B (4-2) perpendicular to the diameter A (4-1) of the upper surface of the angular displacement platform (4) , so that the projection of the connecting part of the cylindrical antenna reflection surface and the installation connector (5) on the upper surface of the angular displacement platform (4) coincides with the diameter B (4-2). 2. As claimed in claim 1, a spaceborne cylindrical antenna reflective surface angle and displacement decoupling loading test base is characterized in that the installation connector (5) is fixed to the flange (5-2) Connection, the gap between the projection of the side B (5-4) on the upper surface of the angular displacement platform (4) and the diameter B (4-2) is 3.125 mm. 3. As claimed in claim 1, a base for a space-borne cylindrical antenna reflector angle and displacement decoupling loading test is characterized in that the installation connector (5) slides with the flange (5-2) connection, the upper surface of the flange (5-2) is provided with a slideway (5-2-1), and the lower surface of the installation connector (5) is provided with a slider (5-2-2), the installation connection The slide block (5-2-2) on the lower surface of the part (5) is arranged in the slideway (5-2-1) on the upper surface of the flange (5-2), and the slide block (5-2-2) A top screw (5-2-3) is arranged on the top, and a side A (5-3) of the connecting piece (5) parallel to the slideway (5-2-1) is installed on the upper surface of the angular displacement platform (4). The projection coincides with the diameter A (4-1) of the upper surface of the angular displacement platform (4), and one side B (5 -4) The distance between the projection on the upper surface of the angular displacement platform (4) and the diameter B (4-2) perpendicular to the diameter A (4-1) of the upper surface of the angular displacement platform (4) can be passed through the sliding slider (5-2-2) Adjustment. 4. As claimed in claim 1, a base for a space-borne cylindrical antenna reflector angle and displacement decoupling loading test is characterized in that it includes a leveling base (1), a three-claw base connector (2 ) and the base platform adapter (3), the angular displacement platform (4) is connected to the leveling base (1) through the three-jaw base connector (2) and the base platform adapter (3), three The claw base connector (2) is set on the leveling base (1), and the base platform adapter (3) includes the base connector connection end (3-1), C-shaped column shell (3- 2) and the platform connecting flange (3-3), the base connector connecting end (3-1) is composed of a circular plate (3-1-1) and the lower edge of the circular plate (3-1-1) The vertical edge (3-1-2) is formed, the inner diameter of the vertical edge (3-1-2) coincides with the diameter of the three-jaw base connector (2), and is set at the center of the circular plate (3-1-1) There is a round hole (3-1-3), the base connector connection end (3-1) is set on the upper end of the three-claw base connector (2), and the connection contained in the upper end of the three-claw base connector (2) The bolt is fixed by the nut after passing through the round hole (3-1-3), and a gap (3-1-4) is provided on one side of the base connector connection end (3-1), so that the vertical edge ( 3-1-2) will not be blocked by the locking bolts contained on the side of the three-jaw base connector (2); the base connector connection end (3-1) is connected to the platform through a C-shaped column shell (3-2) The connecting flange (3-3) is fixedly connected, and the platform connecting flange (3-3) is fixedly connected to the angular displacement platform (4) through screws.