Studying technological elastic deformations of the central hole of a gear with low technological rigidity caused by the retaining pressure

Article

Published: 25.03.2025

Published in issue: #3(159)/2025

DOI: 10.18698/2308-6033-2025-3-2433

Category: Aviation and Rocket-Space Engineering | Chapter: Design, Construction, Production, Testing, and Operation of Aircraft

The paper presents a study devoted to technological elastic deformations of the central hole of a gear with the low technological rigidity caused by its fastening in the self-centering jaw chucks, as well as in the integral chuck. It provides two schemes for changing the hole geometric parameters with fastening such a gear in a three-jaw self-centering chuck by the outer diameter or by the involute. Areas of the gear hole contour deflection and bending are determined. The paper presents numerical values of technological elastic deformations of the central hole of a gear obtained in studying the schemes of fastening by the outer diameter and by the involute in two-, three-, six-jaw self-centering chucks, as well as fastening in the integral self-centering chuck. The technological elastic deformations are computed using simulation by the finite element method in the SolidWorks Simulation automated design system. Obtained results of the technological elastic deformations depending on the number of the self-centering chuck jaws are compared, and the corresponding relationships are revealed. The paper concludes that fastening the gear by the involute is the most optimal option in terms of the lowest technological elastic deformations and the short dimensional chain compared to fastening by the outer diameter. It provides recommendations for optimizing manufacture of gears with the low technological rigidity.

EDN WRPDKJ

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