Abstract
The tooth contact analysis (TCA) in the wheel rotation function of the globoidal worm gear with rotary teeth was presented. To determine the contact in CAD system, the direct solid method of geometry analysis was used. In the gear the globoidal worm gear was used, and the classical worm wheel was replaced by the wheel with rotary teeth in the shape of the frustum of cone.
Highlights
Przedstawiono analizę śladu styku w funkcji obrotu kół globoidalnej przekładni ślimakowej z obrotowymi zębami
In the cylindrical worm gear, the worm teeth are cut on the cylinder, and in the globoid gear on the concave rotating surface, where the pitch radius of the worm is equal to the pitch radius of the cooperating worm
It is needed to adjust the worm and wormwheel mutually at first. This setting is a result of the theoretical setting of a rotary tooth of one wheel in the center of the worm keyway, with using the calculated axial distance and the axis crossing angle
Summary
Przedstawiono analizę śladu styku w funkcji obrotu kół globoidalnej przekładni ślimakowej z obrotowymi zębami. At the higher loads there is a seizure of the teeth, because the rubbing speed increases as the raising angle of the worm coil line increases. The disadvantage of such gears is poor efficiency, and – strong warming and cooling necessity. In the point of contact analysis, the correct description of the cooperating surfaces, i.e. the wormwheel roll and the worm coil is important primarily.
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