Auxiliary reflecting surface electric lifting assembly and antenna

By using a single drive motor and a purely mechanical transmission chain, the automation and synchronization issues of the sub-reflector antenna lifting device are solved, achieving efficient and stable sub-reflector lifting, meeting the needs of vehicle transportation and operation, and supporting modular maintenance.

CN121965092APending Publication Date: 2026-05-01CHINA ELECTRONICS TECH GRP NO 39 RES INST
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Patent Information

Application Number
CN202610114819.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In the existing technology, the lifting device of the sub-reflector antenna has a low degree of automation and poor synchronization of multi-motor drive, making it difficult to meet the dual requirements of vehicle transportation and working use. In addition, the traditional manual mechanical adjustment is inefficient.

Method used

Using a single drive motor and a purely mechanical transmission chain, the rotational power is synchronously distributed to three linear actuators through the first and second commutator transfer cases, achieving high-precision linear lifting of the sub-reflector. Combined with the guide mechanism and encoder, precise control is achieved.

Benefits of technology

It achieves automatic electric lifting of the sub-reflector, ensuring the synchronization accuracy and stability of the movement, reducing costs, adapting to complex vehicle postures, and facilitating modular maintenance.

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Abstract

The invention discloses a subreflector electric lifting assembly and an antenna, and belongs to the technical field of antennas. The auxiliary reflecting surface electric lifting assembly comprises a bottom plate, a driving motor, two reversing transfer cases, a plurality of right-angle commutators, three linear executing mechanisms and a connecting plate. A driving motor divides power into two paths through a first reversing transfer case, and one path drives a first linear execution mechanism through a first vertical right-angle reverser; and the other path sequentially passes through a first horizontal right-angle reverser and a second reversing transfer case for secondary distribution and steering, and finally drives a second linear actuating mechanism and a third linear actuating mechanism directly and respectively through a second horizontal right-angle reverser and a second vertical right-angle reverser. The three linear executing mechanisms stretch out and draw back synchronously to drive the connecting plate and the auxiliary reflecting surface to lift integrally and stably. The single driving motor is matched with the specific mechanical transmission chain, so that three-point rigid synchronous driving is realized, and the problems of inconvenience in manual lifting of the auxiliary reflecting surface of the vehicle-mounted antenna, poor synchronous precision of multiple motors and over-limit transportation are solved.
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