Other parameters remain unchanged. Under different support stiffness of spiral bevel gear driving wheel, the variation of dynamic load coefficient amplitude of spiral bevel gear transmission system with dimensionless meshing frequency is shown in the figure.
As can be seen from the figure, when the support stiffness of spiral bevel gear and large gear is 24 × At 108n / m, the amplitude (CD) max of dynamic load coefficient is significantly greater than that of support stiffness, which is 16 × (CD) max at 108n / m, the peak value is particularly obvious; When the support stiffness is 8 × At 108n / m, in the process of speed change, the change of dynamic load coefficient amplitude (CD) max is relatively stable, and is significantly lower than that in the other three cases. And with the increase of support stiffness, the peak value moves backward, because with the increase of support stiffness, the natural frequency of the system also increases.