Controllable-pitch propeller complete machine rotation electro-hydraulic servo loading reliability test device and method

The invention relates to a controllable-pitch propeller complete machine rotation electro-hydraulic servo loading reliability test device and method. The test device comprises a CPP rotation bench assembly, a propeller hub loading bench assembly, a long oil pipeline rotation bench assembly, a loading hydraulic system and an electric control and detection system. The CPP rotation bench assembly comprises a 1# supporting sliding bearing, a 2# supporting sliding bearing, a main shaft, a 3# supporting sliding bearing, a parallel operation gearbox, a 1# main shaft driving motor, a 2# main shaft driving motor and a loading oil way distributor. The propeller hub loading bench assembly comprises a rotary resistance loading oil cylinder, a rotary vane torque loading oil cylinder, a thrust loading oil cylinder and a centrifugal force loading weight. The electric control and detection system drives each oil cylinder to simulate various stresses of the paddle through the loading hydraulic system so as to carry out dynami