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1. The basic structure of the test bench
The test bench uses motors, dynamic torque sensors, rolling bearing rotor systems, planetary gearboxes, parallel shaft gearboxes, and magnetic powder brakes as experimental loads to form a complete fault simulation system. The size of the experimental load can be changed by adjusting the excitation current of the magnetic powder brakes. Supporting data acquisition system and related software, acceleration sensor, eddy current sensor, etc. can realize vibration, noise, torque and speed signal measurement of normal and faulty bearings and rotor faults.

2. Experimental research content
Motor fault research: With different types of faulty motors and current and voltage sensors, it is possible to study motor rotor unbalance faults, motor bearing faults, motor rotor broken bar faults, etc.;
Rotor fault research: rotor unbalance fault, rotor misalignment fault, rotor friction fault, rotor crack fault, rotor deformation fault, etc.;
Research on the failure mechanism of parallel shaft gearboxes: different failure forms of straight teeth and helical teeth, such as pitting, wear, cracks, broken teeth, missing teeth and other common failures; different failure forms can also be customized according to requirements;
Research on the fault mechanism of planetary gearboxes: different fault forms of planetary gears, sun gears, and internal ring gears, such as common faults such as pitting, wear, cracks, broken teeth, and missing teeth; different fault forms can also be customized according to requirements;
Rolling bearing fault research: different fault forms of gearbox support bearings, such as pitting, cracks, wear, cage fracture, etc.;
Simulation of different working conditions: gear characteristics under the state of motor speed up and down, gear characteristics under different load conditions, etc.