The invention relates to the field of aerospace equipment, and particularly discloses a redundant design propeller pitch angle accurate control device which comprises a propeller hub, blades installed on the propeller hub, a limiting fixing seat fixedly connected with the propeller hub and a pitch changing mechanism. And a first control mechanism for measuring the linear displacement of the variable pitch nut and a second control mechanism for electrically limiting the range of the pitch angle of the paddle are arranged on the limiting fixed seat. Real-time monitoring of the pitch angle of the propeller blade is achieved by measuring the linear displacement of the variable pitch nut converted from the pitch angle of the propeller blade, feedback control is conducted on the pitch angle by combining the rotating speed of the propeller, and accurate adjustment and control of the pitch angle of the propeller blade of the propeller are achieved.
本申请涉及航天设备的领域,具体公开了一种冗余设计的螺旋桨桨距角精确控制装置,包括桨毂、安装于桨毂的桨叶、与桨毂固定连接的限位固定座、变距机构,限位固定座上设置有测量变距螺母直线位移的第一控制机构和对桨叶桨距角范围进行电器限位的第二控制机构。通过测量由桨叶桨距角角度转化为变距螺母的直线位移实现桨叶桨距角角度的实时监测,并结合螺旋桨转速对桨距角角度进行反馈控制,达到了对螺旋桨桨叶桨距角的精确调节及控制。
Precise control device and method for propeller pitch angle of redundant design
一种冗余设计的螺旋桨桨距角精确控制装置及方法
2022-04-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
Redundant hydraulic emergency control system of controllable-pitch propeller device
Europäisches Patentamt | 2022
|Europäisches Patentamt | 2021
|ADJUSTABLE PITCH PROPELLER OR GTE FAN WITH REDUNDANT ACTUATORS.
Europäisches Patentamt | 2020
|A propeller pitch angle adjusting device and adjusting method
Europäisches Patentamt | 2020
|