In order to evaluate whether the oil storage structure of splash lubricating gearbox was reasonable

a dynamic simulation model for the splash lubrication analysis of gearbox including gearbox housing

spiral bevel gear based on the computational fluid dynamics (CFD) method was established

and the splash lubrication fluid simulation calculation and analysis of gas-liquid two-phase flow were carried out

then the movement track and distribution cloud diagram of lubricating oil in gearbox were obtained. Through the simulation analysis

it was found that the amount of oil collected at input oil pocket was 531 mL

greater than the amount of oil collected at output oil pocket 65 mL

and the No4 oil pocket cant collect lubricating oil

so the design of No4 oil pocket was unreasonable. According to the result of splash lubrication test

it shows that the trend of the simulation analysis result is consistent with the experimental result

which verifys the correctness of the simulation analysis method and provids a guidance for the design of oil storage structure of splash lubricating gearbox.