Equal height spiral bevel gear is widely used in automobile, aviation, aerospace and other fields because of its high transmission efficiency, strong bearing capacity, stable transmission and low noise. Machining equal height spiral bevel gears requires a lot of trial cutting, which is time-consuming and expensive. In this paper, the cutting trajectory equation of equal height spiral bevel gear is established. Through the methods of simulation and finite element analysis, the influence of the cutting parameters of equal height spiral bevel gear and the blade slope angle on the cutting results of equal height spiral bevel gear is studied. After comparison and analysis, the reasonable cutting parameters of equal height spiral bevel gear and the blade slope angle are selected, To reduce trial cutting workload and improve production efficiency.
(1) according to the meshing principle and machining method of equal height spiral bevel gear, the cutting trajectory equation of equal height spiral bevel gear in the machining process of equal height spiral bevel gear is obtained;
(2) the finite element simulation method is used to analyze the cutting process of equal height spiral bevel gear with different cutting parameters of equal height spiral bevel gear and blade slope angle. Considering the influence of cutting force and cutting temperature of equal height spiral bevel gear, the appropriate cutting parameters and blade slope angle of equal height spiral bevel gear are selected;
(3) the parameters obtained from the simulation are selected for bevel gear processing, and the processed gears are tested. The gear accuracy is within the qualified range, which indirectly verifies the rationality of the cutting parameters of equal height spiral bevel gear and the angle of blade slope.