The tooth direction modification ofmainly refers to three elements: the direction of modification is the tooth direction, the method of modification is. Appropriate fine adjustment, and the purpose of modification is to make the theory inconsistent with the practice and break the normal stress mode. The principle of this method is to solve the problem of force on the meshing line. Because the meshing line is the main area where the maximum stress is formed, the problem of uniform load distribution can be solved by focusing on this area, and the bearing capacity will be more superior.
When analyzing the force on the bearing and helical gear, the stress analysis diagram is obtained through the force analysis. The torsional deformation diagram reflects the torsional deformation of the helical gear shaft when the shaft is subjected to torque. The bending deformation diagram reflects the deformation of the shaft when the helical gear is acted as. The comprehensive deformation diagram reflects the deformation of helical gear shaft under bending deformation and torsion deformation. At this time, the total deformation, that is, the elastic deformation modification, is the maximum relative comprehensive deformation within the tooth width. For involute, the comprehensive deformation curve of helical gear shaft under bending deformation and torsion deformation is opposite to the theoretical tooth direction modification curve.