Strength evaluation of gears and bearings considering housing deformation of the tractor front axle

Hyun-Woo Han^1,2 Jooseon Oh^1,3 Young-Jun Park^1,2,4,* Sung-Bo Shim^5,6,*

¹Department of Biosystems Engineering, Seoul National University, Seoul, Republic of Korea
²Convergence Major in Global Smart Farm, Seoul National University,Seoul, Republic of Korea
³Smart Agriculture Innovation Center, Kyungpook National University,Daegu, Republic of Korea
⁴Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
⁵Department of Bio-industrial Engineering, Kyungpook National University,Daegu, Republic of Korea
⁶Upland Field Machinery Research Center, Kyungpook National University,Daegu, Republic of Korea

Abstract

Load is applied to the front axle of the agricultural tractor, which causes deflection in the front axle housing. Deflection causes the gears and bearings inside the housing to deviate from their original positions, causing problems in durability such as safety factor. In this study, the simulation model was developed for the parameters constituting the front axle system of agricultural tractor, gear strength and parameter analysis were performed in the system unit. In addition, durability analysis was performed on bearings. Durability of the front axle was confirmed by analyzing gear misalignment, tooth contact pattern, and face load factor.

Figures & Tables

Fig. 1. Simulation model (A) Front axle, (B) Differential part, (C) Final reduction part.