Researc And Development Parametric System Of Cycloindal Pinwheel Reducer Based On CAD/CAE

Cycloidal pinwheel reducer plays an important role in industrial production. It is mainly used in mining,metallurgical, chemical industry, national defense, lifting transportation departments. The characteristics ofcycloidal pinwheel reducer include smooth transmission ratio, high transmission efficiency, strong carryingcapacity, reliable operation and long service life etc. But the structure of cycloidal pinwheel reducer is morecomplex than that of ordinary gear reducer .,so it is more difficult to analyze the stress of cycloid gear and itblock the diffusion of cycloidal pinwheel reducer. The research and development of parametric CAD/CAEsystem of cycloidal pinwheel reducer is taken aid at in this paper. Pro/TOOLKI and VC ++programming areused for secondary development of Pro/ENGINEER. The parameterized modeling of cycloidal pinwheelreducer and finite element analysis of cycloidal pinwheel reducer have been done. The main achievementsobtained are as following:(1)Pro/TOOLKIT and VC + + are used for secondary development of Pro/ENGINEER, thedevelopment of the system of cycloidal pinwheel reducer parametric is completed ,so as to achieve theparametric design of cycloidal pinwheel reducer various parts. This system can avoid repeating models ofsimilar parts. The design time greatly shortened. This system is of practical value.(2)Mechanics analysis of cycloid gear is done at first .Then various stress on the teeth is computed.Cycloid gear is analysed using the ANSYS finite element analysis software and the diagrams of vector , thediagrams of deformation and the diagrams of stress of cycloid gear are obtained. How to import the model ofPro/ENGINEER to ANSYS and connect Pro/ENGINEER and ANSYS for seamless are discussed,which haspractical value for complex mechanical system of the finite element analysis(3)The reliability-based optimization design is done for cycloidal pinwheel reducer. The objectivefunction and constraint conditions are listed .Then diameter of pin wheel distribution circle, width of cycloidgear, short amplitude coefficient, the outer diameter of needle tooth set, the outside diameter of turn armbearing and the diameter of dowel pin diameter are optimized by ANSYS programming. The volume isdecreased after cycloidal pinwheel reducer optimized. So the cost is reduced.(4)The 3D modeling of cycloidal pinwheel reducer can be obtained by using the developedparameterization system. Then assembly and kinematics analysis are accomplished in Pro/ENGINEER. Thedriver source of each motion pair is defined. Then cycloidal pinwheel reducer is simulated and the motion characteristics of cycloidal pinwheel reducer are anslyzed. The kinematics analysis is used to check whetherthe sizes of the parts and assembly relations arecorrect. So the efficiency can be improved.