Selection of the material grade and hardness of the working surface of the teeth of dynamically loaded gears
- Authors: Barmanov I.S.1,2
-
Affiliations:
- Samara National Research University
- Samara Polytech
- Issue: Vol 11, No 1 (2025): 30.04.2025
- Pages: 7-13
- Section: Articles
- URL: https://journals.rcsi.science/2409-4579/article/view/312368
- DOI: https://doi.org/10.18287/2409-4579-2025-11-1-7-13
- ID: 312368
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Full Text
Abstract
The purpose of the study is to improve the design methods of gears. The problem, the solution of which the article is devoted to, is to establish functional dependencies between the hardness of the working surface of the gear teeth and operating conditions. The research methods are based on the theory of strength, Elasticity theories, Mechanics of contact interaction. The novelty of the work lies in the establishment of functional dependencies between the hardness of the working surface of the teeth and the basic initial data (power and rotation frequency of the gear); identification of the effect of the power and rotation frequency of the gear on the choice of hardness of the surface of the teeth. The results of the study - the overall dimensions of the spur cylindrical gear were carried out based on the contact strength condition; the ranges of the hardness values of the working surface of the teeth were determined; the functional dependencies between the given power, frequency of rotation and hardness of the surface of the teeth were established; a nomogram was constructed to determine the minimum value of the hardness of the working surface of the teeth, depending on the power and rotation frequency of the gear. The obtained results make it possible to determine the minimum hardness of the working surface of the teeth at given power and speed values and to choose the appropriate material and type of heat treatment for the design calculations of dynamically loaded gears.
About the authors
Il'dar Sergeevich Barmanov
Samara National Research University; Samara Polytech
Author for correspondence.
Email: isbarmanov@mail.ru
Candidate of Science (Engineering), Associate Professor
Russian Federation, Samara, Russian FederationReferences
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