卫星载荷无接触支承外转子旋转关节结构

By designing the stator and rotor structures, and combining a rotating motor, magnetic levitation bearings, and sensor arrays, five-degree-of-freedom active control of the satellite payload was achieved. This solved the problems of high precision and reliability of the satellite payload's non-contact support and provided protection against magnetic levitation instability.

CN119637119BActive Publication Date: 2026-07-17BEIJING INST OF CONTROL ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Filing Date
2025-01-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to achieve five-degree-of-freedom active control of satellite payloads, and cannot meet the high requirements of satellite engineering for non-contact support capabilities and control precision.

Method used

It adopts a stator and rotor structure, combined with a rotary motor, magnetic levitation bearing assembly, sensor assembly and self-unlocking locking device to achieve five degrees of freedom active control. The magnetic levitation bearing assembly provides contactless support, the mechanical protection bearing serves as a backup, and the backlash elimination device enables active switching.

Benefits of technology

It achieves high-precision rotation control and stable support for satellite payloads, provides protection against magnetic levitation instability, and improves the reliability and mechanical resistance of the rotating joint.

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Abstract

本发明涉及卫星载荷无接触支承外转子旋转关节结构,包括定子、转子、旋转电机、磁悬浮轴承组、传感器组和自解锁式锁紧装置。转子间隔套设在定子的外侧,旋转电机、磁悬浮轴承组和传感器组设置在转子和定子之间,转子在外能够将旋转关节控制线路置于载荷舱,以便旋转关节各组件导线可以直接通过旋转关节外围连接至相应的控制线路、驱动线路,避免因线路过多导致通过中心轴内孔走线方式实现困难的问题,并且能够利用载荷舱姿态信息进行旋转关节转子系统的高精度指向和稳定控制。磁悬浮轴承组能够实现五自由度磁悬浮无接触支承,为载荷提供精密支承功能。自解锁式锁紧装置用于连接并锁定定子和转子,且在需要解锁时能够解除定子和转子之间的固定。
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