凸轮转子叶片马达端面缝隙压力场研究

IThis paper provides the structure and working principle of cam-rotor vane type hydraulic motor in detail, in order to study the hydraulic pressure field distribution regularity of the cam-rotor vane type hydraulic motor. Use the CFD software to solve the fluid circumstances of the head face of motor. The digital analysis shows that the flow field changes fiercely when the motor starts to run. (1)In low speed case, the liquid flows in and out smoothly so that the pressure field turns out to be well-distributed. (2)In high speed case, the liquid turns to be turbulent flow, thus leading to an irregular vortex in the vicinity of the main spindle, resulting in the pressure on the cam surfaces to change dramatically (3) Because of the asymmetric leakage oil port, the pressure of side with the leakage oil port is significantly higher than the other side without the leakage oil port. It turns out to be a trend of a tilt of the cam toward the stator. This trend is more obvious when the cam is in a low rotational speed.