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Why does the reducer have axial displacement

Views: 1     Author: Site Editor     Publish Time: 2022-09-14      Origin: Site

During the operation of the reducer, axial displacement sometimes occurs, which often leads to poor meshing of the mechanical gears, and then unilateral meshing problems, affecting the normal operation of the reducer. Then, why does the reducer have axial displacement? On this issue, we made the following introduction:

The two end faces of the reducer gear should be perpendicular to the axis, and the plane formed by the symmetrical center points of the left and right helical gears should also be perpendicular to the axis. However, errors will exist in the actual processing and assembly process of the gear. After the herringbone gear with errors is assembled on the shaft, the closed loop formed by the symmetrical center of its left and right rotating gears is not a plane perpendicular to the axis, but a curved surface, The track of the surface rotating around the axis is an irregular wavy curve, and the two different gear rotation tracks are two different curves. During the operation of a pair of meshing gears, their symmetrical centerlines coincide, so the symmetrical centerlines of this pair of herringbone gears will coincide and overlap during the gear meshing process, and the result will inevitably be peak valley superposition, that is, error accumulation, which results in the axial displacement of the gear shaft.

It can be seen from the above that the axial displacement of the reducer is caused by the superposition of two end face axes. The reducer manufacturer should pay attention to this during design and production to ensure that the reducer can be used for a long time.


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