In gear design, it is essential to use accurate geometry and generate calculations and all dimensions correctly. In helical gears, the geometrical calculation of the tooth root has not been sufficiently presented to facilitate gear tooth root modelling by equations. In the present article, an analytical method is presented to calculate the root geometry of helical gears and also the necessary design parameters are introduced. Method 1, which was presented in an earlier article for calculating the root fillet, is used and tested in the present article and it is shown that incorrect results are generated for helical gears, but however for spur gears, this method works accurately. In the present article, a new alternative method, namely Method 2, is developed and presented for the root fillet geometric calculation for helical gears. The geometry from both Windows LDP software and the developed method are compared. A perfect agreement is shown in the results, and thus, the equations presented in this article can be applied to helical gear geometry.


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    Title :

    Geometric Determination of Tooth Root Fillet for Helical Gears


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:

    Conference:

    International Conference on Mechanical, Automotive and Materials Engineering ; 2023 ; Da Nang, Vietnam December 20, 2023 - December 22, 2023



    Publication date :

    2024-09-25


    Size :

    15 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





    Root fillet geometry of spur, helical, spiral bevel and hypoid gears

    Lee,H.T. / Yamada,S. / Rockwell Automotive,US | Automotive engineering | 1996


    Root Fillet Geometry of Spur, Helical, Spiral Bevel and Hypoid Gears

    Lee, H.-T. / Yamada, S. / Society of Automotive Engineers | British Library Conference Proceedings | 1996


    Root Fillet Geometry of Spur, Helical, Spiral Bevel and Hypoid Gears

    Lee, Hong-Tao / Yamada, Silvio | SAE Technical Papers | 1996