A new type of permanent magnetic face gear which couple through multi-row magnetic cylinders and achieve non-contact orthogonal transmission is proposed.Through several experiments of this permanent magnetic gears device

its transmission characteristics and influencing factors are studied

finding that the air gap directly affects magnetic coupling drive torque.By comparing of torque curves of different starting angle as well as the different curves of a certain single row of magnetic cylinders

the condition of better transmission characteristic is obtained.No matter device is on load or not

the research phenomena indicate that the device runs smoothly.By measuring the magnetic field and its changes in engagement region

the analysis result is further validated

and the transmission characteristics can be improved on the basis of rational distribution of the magnetic cylinders.