A high-torque anti-jamming antenna pointing mechanism for deep space exploration

Abstract

The invention provides a high-torque anti-interference antenna pointing mechanism for deep space detection. The high-torque anti-interference antenna pointing mechanism comprises a servo mechanism, alocking unit, a two-dimensional rotation unit, an extension rod, press and release mechanisms, a first limiting mechanism, a second limiting mechanism and a brake, wherein the locking unit is used forfixing the servo mechanism and supporting an antenna at a fixed position; the two-dimensional rotation unit is fixedly connected with the antenna through a flange; one end of the extension rod is connected with a lifting unit and the other end is connected with the two-dimensional rotation unit; the press and release mechanisms are symmetrically distributed on the periphery of the antenna by employing the antenna as the center; and the brake is arranged on a rotating shaft of the two-dimensional rotation unit, a stator of the brake is fixed on the end surface of a bearing hole of the two-dimensional rotation unit and a rotor of the brake is fixed in a driven shaft. The high-torque anti-interference antenna pointing mechanism for deep space detection provided by the invention, the brake isarranged on the rotating shaft of the two-dimensional rotation unit, so that the torque is kept through adding the rotating shaft after energization, and the anti-interference performance of the servo mechanism in a stalling keeping mode is improved.

Description

technical field [0001] The invention relates to the field of aerospace electromechanical technology, in particular to a large-torque anti-jamming antenna pointing mechanism for deep space exploration. Background technique [0002] The antenna pointing mechanism is the core component of the spaceborne measurement and control data transmission system, and is the executive mechanism for the digital transmission antenna to track and locate the ground receiving station. [0003] The caliber of common spaceborne data transmission antennas is generally about 0.5 meters, and the interference torque received during in-orbit flight is only tens of millinewton meters. With the development of deep space exploration activities represented by the moon landing plan and fire detection project, the distance between the probe and the earth is much larger than that of the earth orbit satellite, and the signal attenuation degree in the data transmission process has also increased significantly,...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-torque anti-interference antenna pointing mechanism for deep space exploration to solve the problem that the pressing point of the servo mechanism cannot be installed

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