High Bandwidth Antenna Servo Control Stabilization Platform

Abstract

The invention discloses a high bandwidth antenna servo control stable platform, and is aimed at providing a stable platform which is high in transmission stiffness and low in frictional resistance and can realize scan tracking of a same-caliber antenna. The stable platform is realized via the following technical solution: two push-pull connecting rod assemblies (7) are symmetric to a gyro assembly (5) and connected to a frame, a pitching drive motor (9) with a pitching rotary transformer (11) is fixedly connected to the middle part of two side azimuth drive motors via a pitching drive frame (6) fixedly connected with the two side azimuth drive motors (10), an azimuth drive frame (2) and the pitching drive frame are connected to an antenna feeder load upper frame (1) by the push-pull connecting rod assemblies to form a parallelogram mechanism of double frames and four push-pull rods, the lengths of the push-pull connecting rod assemblies (7) are adjusted via threads of a bulb (15), movement of two degrees of freedom of azimuth and pitching of the antenna feeder load upper frame is driven, the kinetic energy is transferred to the upper load frame, and the drive frame thus drives the load frame.

Description

technical field [0001] The invention relates to a servo-controlled stable platform structure of the same-diameter antenna and high-bandwidth antenna widely used in the aerospace field such as radar by using an inertial device to measure the motion of the platform. Background technique [0002] The stable platform is a common device in inertial stabilization, and it is mainly used to sense the state of the antenna and feed back system-related information. The stable platform is generally composed of several parts such as drive motor, transmission structural components and actuators. According to the different environments and conditions of use, choose the appropriate scheme to carry out the design. Control bandwidth is an important indicator of the inertial control system of a stable platform. In order to enable the antenna to complete the scanning and tracking of the target during the movement, a servo-stabilized platform must be used. According to the attitude informatio...

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Problems solved by technology

[0007] Among the known implementations in this field, Chinese patent application 201520632751.5 discloses a small-diameter stable platform, which includes a one-dimensional linkage mechanism and a one-dimensional direct drive mechanism. Although this product is small, it has one dimension The use of direct drive reduces the usable area of ​​the mouth surface, which cannot meet the requirements of the radar stabilization platform with the same caliber

[0008] Among the known implementations in the field, Chinese patent application 201010200590.4 discloses a high-precision two-degree-of-freedom stable platform, including upper platform, middle platform, lower platform, crank, crank shaft, crank connector, middle shaft and other components , the platform is used as a test equipment, the volume is large

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