SCREW PAIR AND PLANETARY TRANSMESSION BASED ON IT Russian patent published in 2021 - IPC F16H25/20 

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to the field of mechanical engineering. A screw pair for a planetary helical transmission contains a screw and a nut of different diameters. The axes of the screw and nut are offset in parallel relative to each other by means of an internal or external eccentric and have the ability to rotate one relative to the other. The screw surface of the screw and nut is made with toothed profiles that mate with each other. The toothed profile and the helical surface on one of the parts in a pair are formed by separate teeth located along a helical line, and the toothed profile and the helical surface on the second part are made as the corresponding envelope of the teeth of the first part. A planetary helical transmission is also claimed, which contains the specified screw pair located coaxially with another screw pair of a similar design. The screw or nut of one of the pairs performs the function of a nut or screw for the second pair.

EFFECT: invention provides an increase in the load capacity of the screw pair.

4 cl, 5 dwg