Finite Element Analysis For Cycloid Pin Gear Planetary Reducer

Cycloid pin gear planetary reducers are widely used in many kinds of machinery depend on their compact structure, small size, light weight, large transmission ratio, high carrying capacity, smooth operation, low noise, high efficiency running, reliability and long service life. However, in the mechanical analysis, it is the system which is the most complex and difficult to control in all the gear reducers. Because of its rarely study and deep research, it improved slowly in optimization and promotion. Therefore, the paper did the research on modeling and finite element analysis for key components of cycloid reducer.Cycloid-gear is a key component of cycloid pin gear planetary reducer. Much of the previous research of the cycloid-gear has done without considering tooth modification. So the results always keep a distance with the actual work instance. With the example of the pin gear teeth profile of BW180 cycloid pin gear planetary reducer, the paper analyzed the cycloid-gear with tooth modification in order to get more accurate force state, focusing on the problems that exist in institutions and the actual needs of project. On the condition that the cycloid-gear with tooth modification, we got the maximum force, using the theory of meshing between improved cycloid gear and pin gear. Using Pro/E we established cycloid round of the three-dimensional solid model. The model used a more accurate way which is founding curve from equation. Application of mathematical equations improved the accuracy of the analysis model. Using ANSYS finite element analysis, we built the finite element model and analyzed the stress distributing of cycloid-gear by the finite element analysis of the cycloid-gear and pin-gear under the max force.In the process of analysis, we discussed the integration of Pro/E and ANSYS and implemented computer-aided engineering design based on Pro/E-ANSYS environment. The establishment of the common platform to resolve complex mechanical system design and performance analysis has theoretical and practical value in the solid modeling and finite element analysis method.