High-precision multi-butt-joint-locking-plane antenna auxiliary unfolding mechanism

Abstract

The invention discloses a high-precision multi-butt-joint-locking-plane antenna auxiliary unfolding mechanism, and belongs to the technical field of satellite antennas. The mechanism comprises an overturning module I, a rotation connection module II and a fixing module III, the module I and the module III comprise wedge telescoping mechanisms, the rotation connection module II comprises a large motor, a transmission shaft fixedly combined with a motor shaft of the large motor, and a first installation plate and a second installation plate supporting connection of the large motor and the transmission shaft, and the overturning module I and the rotation connection module II are separately connected with the transmission shaft. By employing the mechanism, the whole process of antenna unfolding is reversible, when an antenna needs to be withdrawn, wedges of the auxiliary mechanism can perform accurate butt joint with a reflection plane and are then vertically overturned to an original position, the antenna reflection plane with greater length can be carried in a segmented manner, a fixing effect is achieved during folding of the reflection plane, and the problem of simultaneous and accurate overturning of multiple groups of reflection planes is solved.

Description

technical field [0001] The invention relates to the technical field of satellite antennas, in particular to a multi-module, self-adaptive, high-precision auxiliary deployment mechanism of a satellite fixed surface antenna. Background technique [0002] With the development of satellite technology, the design of spaceborne antennas pays more attention to the design requirements of multi-frequency bands, high precision and large capacity, and the design of satellite antennas is gradually becoming more complicated. However, due to the limitation of rocket carrying capacity, economy and other factors, the antenna structure is required to be light in weight and small in size. Based on the above contradictions, modular and scalable antenna technology emerged and developed rapidly, and it has become an important way to meet the needs of satellite antennas such as large-diameter, high-precision, and lightweight. This requires the antenna to be in a folded state during launch. Becau...

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Problems solved by technology

[0004] Aiming at the technical problem that the auxiliary deployment mechanism in the prior art cannot realize the simultaneous flipping and precise docking of multiple groups of antenna reflection surface sub-modules, and in order to fill this blank field, the present invention discloses a high-precision multi-joint locking surface antenna Auxiliary unfolding mechanism, the invention can assist the simultaneous flipping of multiple antenna modules to ensure the next step of antenna module docking and unfolding operations

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