The invention relates to the technical field of propeller variable pitch, and provides a digital propeller variable torque control device and a propeller variable torque control system.The digital propeller variable torque control device comprises a high-pressure gear pump, a digital hydraulic control element, a first oil way, a second oil way, a third oil way, a beta valve, a beta control valve, a beta blocking valve, a beta actuator and a variable pitch cylinder; the first oil way is communicated with the digital hydraulic control element, the beta valve and a rod oil cavity of the variable-pitch cylinder; the second oil way is communicated with the digital hydraulic control element and a rodless oil cavity of the variable-pitch cylinder; the digital hydraulic control element enables high-pressure oil provided by the high-pressure gear pump to flow out from the first oil way and return oil from the second oil way, or enables the high-pressure oil to flow out from the second oil way and return oil from the first oil way; the third oil way is communicated with the high-pressure gear pump, the beta control valve, the beta blocking valve and the beta actuator, the variable-pitch hub mechanism is connected with a piston rod of the variable-pitch cylinder, propeller blades are installed on the variable-pitch hub mechanism, and the control system has the advantages of being high in control precision and safety.
本申请涉及螺旋桨变距技术领域,提供一种数字式螺旋桨变矩控制装置及螺旋桨变矩控制系统,该数字式螺旋桨变矩控制装置,包括高压齿轮泵、数字式液压控制元件、第一油路、第二油路、第三油路、β阀、β控制阀、β阻断阀、β作动器和变距缸,第一油路与数字式液压控制元件、β阀和变距缸的有杆油腔连通;第二油路与数字式液压控制元件和变距缸的无杆油腔连通;数字式液压控制元件将高压齿轮泵提供的高压油液从第一油路流出,第二油路回油,或者从第二油路流出,第一油路回油;第三油路与高压齿轮泵、β控制阀、β阻断阀和β作动器连通,变距轮毂机构与变距缸的活塞杆连接并安装螺旋桨叶,具有控制精度高和安全性高的优点。
Digital propeller torque conversion control device and propeller torque conversion control system
一种数字式螺旋桨变矩控制装置及螺旋桨变矩控制系统
06.02.2024
Patent
Elektronische Ressource
Chinesisch
Rotorcraft and propeller torque conversion method thereof
Europäisches Patentamt | 2020
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