Abstract
External gear synchronous motors are widely used in hydraulic synchronous systems due to their robustness and low cost. However, the noise of the motor is one of the limiting factors. The main source of noise comes from the pressure and flow pulsation during gears meshing. One of methods to reduce the noise is to analyze and optimize the tooth profile and meshing volume. However, the accurate measuring and modeling of the tooth profile are the preliminaries required for the accurate determination of the relationship between tooth profile and pressure pulsation. This paper reports a non-contact measurement method using optical CCD and laser displacement sensors to measure the tooth profile of an external gear synchronous motor. Tooth profile testing device is set up and the actual tooth profile model is measured. Regional numerical simulation of the internal flow field with the actual tooth profile is done using CFD (computational fluid dynamics) software. Preliminary results showed that different gear teeth profile functions could affect the pressure pulsation properties of an external gear motor, and CFD resulting using the actual gear profile is more comparable to the measurement.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
