3-rps 3D Rotary Parallel Mechanism Antenna Structure System

Abstract

The invention relates to an antenna structure system based on a 3-RPS three-dimensional rotation type parallel mechanism, and belongs to the field of the electromechanical integration technology. The antenna structure system is formed by connecting an antenna reflector with an antenna mount, wherein the antenna mount is of a structure that three servo motors or hydraulic oil cylinders drive three linear telescopic driving devices respectively, the lower ends of the three linear telescopic driving devices (sliding pairs P) are connected with a lower platform through revolute pairs, the upper ends of the three linear telescopic driving devices (sliding pairs P) are connected with an upper platform through spherical hinges (S), and the upper platform and the lower platform are respectively in the shape of an equilateral triangle and are identical in position; three branched chains are respectively connected to vertex angles of the two equilateral triangles. The antenna structure system is characterized in that the axes of the revolute pairs at the lower ends of the three branched chains are in the same plane and intersect with one point O on a connection line of the centers of the upper equilateral triangle and the lower equilateral triangle, in another word, a coplanar concurrent state is formed, and the antenna structure system based on the 3-RPS three-dimensional rotation type parallel mechanism is formed. According to the antenna structure system, remote sensing and remote metering signals and data of satellites, carrier rockets and other aircrafts can be completely obtained, continuous tracking of overhead airspaces is achieved through antennas until working airspaces of the antennas are reached, namely, continuous tracking of any posture is achieved within the working range at the orientation of 0-360 degrees and the pitch angle smaller than + / -90degrees if it is assumed that the antenna pitch angle of the position where an antenna electrical boresight is perpendicular to the ground and faces the sky is 0 degree.

Description

[0001] Technical field [0002] The invention relates to an antenna structure system based on a 3-RPS three-dimensional rotating parallel mechanism. Antenna structure system for aerospace remote sensing, satellite "three remote" technology (remote sensing, telemetry, remote control technology) and satellite communication. The antenna structure system, the servo control system, and the feeder and feeder system (referred to as: sky, servo, and feed) form an antenna system to realize remote sensing, telemetry, and remote control information acquisition and instructions, and to realize satellite communication information transmission and processing. In particular, it can obtain telemetry signals and data in the effective airspace of satellites, launch vehicles and other aircraft, realize continuous tracking of satellite launch vehicles and other aircraft without overhead "blind spots", and successfully solve the continuous tracking in the working airspace of the antenna hemisphere, ...

AI Technical Summary

Problems solved by technology

[0006] The traditional classic remote sensing and telemetry low-orbit satellite antenna design uses the elevation-azimuth (EL-AZ type) antenna seat, which has an overhead "blind cone area", and the elevation-azimuth antenna cannot be placed in the airspace of the satellite's overhead "blind cone area". Continuously track satellites to meet the needs of uninterrupted and continuous signal work

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