Study on meshing characteristics of beveloid gear and involute cylindrical gear transmission with low crossed shaft angle
NI Gaoxiang
HE Chao
LIU Zhanqi
LI Yao
LIU Siyuan
Abstract：[Objective]To address the interference and blocking phenomena caused by large axial displacement in crossed beveloid gear pairs,a new transmission type involving a beveloid gear and an involute cylindrical gear with a low crossed shaft angle was proposed.This research aims to enhance the reliability and stability of the gear system.[Methods]Firstly,based on the spatial gear meshing theory,a mathematical model of the working pitch cone-pitch cylinder for this gear pair was established.Secondly,a geometric design method was developed to obtain the necessary design and installation parameters.Finally,a loaded tooth contact model was created using the finite element method to investigate the influences of load,pitch cone angle,and helix angle on contact patterns,transmission errors,and tooth root stresses.[Results]The results indicate that the contact pattern area,transmission error,and tooth root bending stress all increase with increasing load.An increase in the pitch cone angle of the bev-eloid gear leads to a reduction in the contact pattern area and an increase in both transmission error and tooth root stress.Con-versely,increasing the helix angle of the beveloid gear enlarges the contact pattern area while decreasing the peak-to-peak value of the transmission error and the tooth root stress.These findings provide a basis for the precision design and performance opti-mization of low-crossed-shaft-angle gear transmissions.
Keywords：Low crossed shaft angleBeveloid gear and involute cylindrical gear transmissionWorking pitch cone-pitch cylinderMeshing characteristicCrossed axis
Publication Date：2026-03-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 154-160 )