Computer-aided design and loaded tooth contact analyses of bevel gear pair having straight teeth by different loaded torques

Abstract

The aim of this publication is to show how to integrate the designing process of straight bevel gears into a computer software so it can be further used for making the three-dimensional (CAD) model of the gear pair. During meshing the driven and the driving gears engage gradually so contact points can be mathematically determined between the element pairs according to the developed coordinate system's arrangement. With my-developed computer software, I designed a certain bevel gear pair having straight teeth. Naturally, many different types of this pair could be designed. After that Loaded Tooth Contact Analysis (LTCA) have been done − by normal stress, normal deformation and normal elastic strain parameters. The aim of the LTCA is the analysis of the connection tooth zone in mechanical aspects by different loads. If the received parameters are not appropriate, you can return to the mechanical designing process where the starting parameters of the gear could be modified. Different load torques were used to determine the established mechanical parameters of the elements.

Geometrical- and Tooth Contact Analysis of the Areas and Perimeters on the Archimedean Worm Wheels Depending on the Modification of the Axial Module

“…The worm surface is generated by such cutting tool which has straight-lined blade. This cutting edge is situated in the axial section of the worm [4,6,7,20,26,27,28]. The generating lines are in coordinate system Cp, which is connected to the edge of the tool.…”

“…The generating lines are in coordinate system Cp, which is connected to the edge of the tool. This coordinate system does rotational and linear motion at the same time, which generate helical surface of the worm (Figure 1) [4,6,7,20,26,27,28]. The transformation matrix between the C0 and C1R systems is: Based on Figure 1, the normal unit vector is [7]:…”

“…Each connected teeth are analyzed. The material type of the elements is structural steel [28]. Four coordinate systems are needed for the analysis: m   one rotational coordinate system for the worm,  one rotational coordinate system for the worm wheel,  two coordinate systems for the analyzed tooth connection (linear and normal system).…”

“…The normal stress is interpreted perpendicularly to the surface of the worm wheel [19,28]. We analyze the average stress results and the geometrical shape of the impressions on the surfaces of the worm wheels for each connected tooth.…”

A Loaded Analysis Method for RV Cycloidal-pin Transmission Based on the Minimum Energy Principle

“…Wang et al [11] solved the meshing characteristic problem of orthogonal face-gear drives in real working conditions. Bodzas [12] carried out loaded tooth contact analysis of straight bevel gears and obtained the mechanical characteristics by different loads. Vivet et al [13] proposed a multi-body meshing analysis method and analysed the transmission error and contact patterns of spiral bevel gears.…”