Selection criteria of the addendum modification coefficients of spur gear pairs with smaller number of pinion teeth

7th International Conference on Advanced Concepts in Mechanical Engineering

Atanasiu, V.^1 ; Oprian, C.^1 ; Leohchi, D.^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

关键词: Comparative studies;    Contact pressures;    Contact surface;    Design procedure;    Distribution factor;    Dynamic load modelling;    Modification coefficient;    Selection criteria;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012075/pdf
DOI  :  10.1088/1757-899X/147/1/012075

来源: IOP

【 摘 要 】

A design procedure for the optimum distribution of the addendum modification coefficients of spur gear pairs with smaller number of pinion teeth is presented for the case of a fixed centred distance. The geometrical, kinematics and load capacity criteria are considered in the design analysis. The geometric and kinematics criteria are used to prevent the negative phenomena of the generating and engagement processes. The relation between the contact pressure of meshing teeth and specific sliding are analysed in relation with addendum modification coefficients. A dynamic model is developed to simulate the load sharing characteristics through a mesh cycle. The specific phenomenon of contact tooth pairs alternation during mesh cycle is integrated in this dynamic load modelling. A comparative study is included, which shows the effects of the distribution factor of the addendum modification coefficients on the contact surface characteristics of the gear pairs.