Design and Displacement Analysis of Non-circular Planetary Gear Motors
The non-circular planetary gear motor has the advantages of high volumetric efficiency,good sealing and large torque transmission,which can be used in the fields of underground machinery and food machinery.Based on the geometric relationship,the arc length,transmission and constraint conditions of the arc-arc type(double arc type)pitch curve parameters are derived,and the nonlinear programming model of the inner gear ring and solar wheel pitch curve is established and solved.On the basis of analyzing the rules of liquid intake and discharge in non-circular planetary gear motor,the periodic changes of liquid intake and discharge in each cavity under different rotation angles of the solar wheel are determined.The maximum and minimum cavity areas of the motor are solved by the area fitting method and the graphic method.Also,the theoretical displacement of the motor is determined.The experimental results of non-circular planetary gear motor show that the experimental method and the theoretical calculation method show the same trend of the actual motor flow with the speed,the maximum error is only 9.57％,which verifies the correctness of the theoretical displacement model of the double circular arc pitch curve motor.This study can provide reference for further exploration of optimization design of non-circular planetary gear motors.
万方数据
维普
