Study On Accuracy And Dynamic Characteristics Of Spherical Worm Wheel Grinding Spindle Rotary Conponent

In recent years, with the rapid rise of the domestic and international nuclear power,large-scale hydro, wind generators and other machinery makes the demand for high-power planetary gear reducer on the market is growing, but it is in large Hardened planetary reduction gear ring important core machine parts. The large ring gear grinding Hardened remains a technical difficulty, the someone based on worm wheel grinding method design the spherical worm wheel grinding machine but only at the prototype stage.Spindle system is good or bad their health is an important component of machine tools directly related to the machining accuracy is good or bad. In this paper, spherical worm wheel grinding machine based on its spindle and wheel structure for further design and dynamic characteristics of rotating spindle accuracy and conduct research. The main contents of this paper are as follows:(1) Analysis of the structure of the program’s original grinding its original structure of the program deficiencies improved. Hollow fluid balance means the rim with the wheel hub structure reduces the wheel weight, improved balance of properties grindstone body,spindle dynamics.(2) Spindle structure parametric modeling, with its static stiffness maximum objective function, using the finite element software Ansys Workbench spindle structure parameters were optimized using the optimization results for the corresponding size of the spindle to be modified.(3) It analyzes the causes of errors generated by rotating the spindle assembly to find out the rotary spindle assembly error resulting on runout grinding wheel grinding wheel body and the swing of the modeling and simulation, based on simulation results presented some of the spindle can be improved component rotation measure precision.(4) In order to determine a more reasonable span of the spindle, the quality of the wheel bearing, spindle dynamic characteristics were analyzed.