Solution of Rolling Point Position of Tooth Face without Edge Contact of Helical Gear

When TE is greater than LTE at small wheel angle_1A under small load, it means that the clearance between teeth is sufficient to compensate for the effect of teeth on load deformation of 1, thus avoiding scratching interference.However, due to tooth surface modification and tooth deformation, the original standard conjugate surface has been destroyed, so that the meshing point will still slightly deviate from the theoretical meshing line, resulting in the meshing of the two teeth at the meshing point, along the instantaneous meshing line there is still a relative speed difference, and the meshing impact is inevitable.At this point, the position of the large teeth coming into mesh can be regarded as a small angle phi retracted from the theoretical position.This angle can be calculated by LTCA technology.

Delta 1 is the TE of the teeth pair 1 at the theoretical rodent position, Te is the LTE of the teeth pair 1 at the theoretical rodent position, and phi is the deviation angle of the large wheel teeth of the teeth to be engaged at the theoretical position. This angle is superimposed on the angle of the large wheel theoretical rodent position. The position vector of the rodent impact point can be obtained by contact analysis between the small wheel surface and the large wheel surface at the new position.Quantity.