Theoretical And Experimental Analysis Of Double-rotor Three-raised Cam-rotor Vane Motor

Hydraulic motor is an important execution element in hydraulic system , but existingquantitative motor can only output a speed and torque, in the conditions of input constantflow and pressure hydraulic oil. Obviously when the quantitative motor used in variablespeed or variable torque systems, the system efficiency is low. Double-rotor cam-motorvane-rotor is a new type of structure of hydraulic motor. It formed two motors in a casinginside motor and outside motor, also the motors work independly. Through change thecombination way of internal and external motor oil mouth can realize multistage variabledisplacement output. Namely a double-rotor cam-motor vane-rotor motor can achieve avariety speed and torque without adjusting auxiliary control valves when input constantflow and pressure oil.Firstly, this paper introduced the domestic and foreign hydraulic components presentsituation and the development trend, also the domestic experts and teachers’researchdirection about cam-rotor vane motor. On the analysis of the current development and theexisting motor shortage, put forward a new type of "double rotor" cam-rotor vane motor,In addition, recommend characteristic structure of the motor and working principle andapplication of innovation in detail. And then derived the instantaneous torque formula ofafter the stress of outside rotor and insid rotor are analyzed, find out the influence factorsfor motor torque output pulse and four kinds of work combination with torque ripple issmaller. Using simulation software established three model and policy of the connectingrod and inside rotor, mainly including, the kinematics analysis of connecting rod and roller,also bending stress intensity check of connecting rod bisides the roller has been 0.5 mmweared . Connecting rod radial force compressive strength is simulated when alone intermotor work, and calculated the inter-rotor maximum stress position. Established internaland outernal leakage mathematics model and find out the main leakage influence factorsfor motor, put forward the way to improve the motor volume efficiency. Finally, throughthe experiment of the prototype verify the feasibility of the new structure motor, analysisthe conclusion and the prospects.The above analysis and conclusions just primary stage work of motor theory and experimental design, but these conclusions and parameters laid a foundation fordouble-rotor cam-rotor vane motor of optimization design and better applied in practical.