High Load Carrying Capacity Reducer Temperature Field And Thermal Coefficient

In this paper, heavy-duty reducer internal heat sources and heat transmissionways are analyzed and heat transfer model is given using heat transfer theory andmechanics knowledge. Three-dimensional mathematical model is constructed basedon reducer geometry;steady-state heat conduction governing equation and boundarycondition are made and reducer temperature field functional are deduced,temperature field and heat transfer coefficient are calculated using multiple plateheat-conducting formula and finite element method(FEM). Method calculating heattransfer coefficient at the inside and outside are presented in according with workingcondition,heat fluxes and consumed power changing with power and revolution inthe reducer are calculated; temperature constant at the bottom of gear box isdetermined. The corresponding computer program is developed for all thecalculation. The temperature field, average temperature of lubricating oil and heatrelease coefficient are obtained and analyzed.The study results show that reducer heat release coefficient can satisfy theengineering need using FEM and multiply plate conduction. The heat releasecoefficient and oil temperature are influenced mostly by power, next byenvironmental temperature and slightly by evolution. The temperature filed diffusesin the center of heat resource and decreases evenly;the bottom temperature isaffected slightly.