Using Plastic Pinions with a Steel Wrapper in Planetary Cycloid Gears

A method is proposed for reducing the influence of manufacturing error on the load capacity of a planetary cycloid gear: specifically, the one-piece (steel or plastic) pinion is replaced by a pinion with a plastic core and a steel wrapper. A formula is presented for assessing the load factor, taking...

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Bibliographic Details
Published in:Russian engineering research 2023-10, Vol.43 (10), p.1173-1177
Main Authors: Zakharov, M. N., Ermolaev, M. M., Kuralina, N. N.
Format: Article
Language:English
Subjects:
Cycloids
Engineering
Engineering Design
Manufacturing
Pinions
Rigidity
Steel
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Summary:A method is proposed for reducing the influence of manufacturing error on the load capacity of a planetary cycloid gear: specifically, the one-piece (steel or plastic) pinion is replaced by a pinion with a plastic core and a steel wrapper. A formula is presented for assessing the load factor, taking the influence of manufacturing precision on the load capacity into account. A method is outlined for assessing the contact rigidity of the pinion with a steel wrapper and the torsional rigidity of the gear. Calculations show that the permissible torque on the gear cage with a two-piece pinion is more than triple that for a system with a one-piece pinion. However, the torsional rigidity of the system may be significantly decreased.
ISSN:1068-798X
1934-8088
DOI:10.3103/S1068798X23100398