Date of Publication :9th January 2018
Abstract: The differential may be described as a gear train used to regulate the rear wheel speed and torque. The basic requirement of the vehicle is to control the speed of the rear wheels when taking a turn, so that the vehicle turns smoothly on the road surface. The differential consists mainly of three shafts and an arrangement of gear trains. The first shaft is a propeller shaft that provides the torque and speed required for turning. The remaining two shafts are axle shafts mounted on each rear wheel. These shafts are attached by crown gear and pinion arrangement to the propeller shaft, thus making a pair of bevel gears. The two main parts of the differential transmission system are the crown gear which gives permissible speed to turn the vehicle and the other is the pinion which provides the vehicle with permissible speed and torque. The main objective of this paper is to focus on the mechanical design and analysis when transmitting power at different speeds when assembling gears in gear box. Testing is also carried out by changing the materials for gears, cast iron, cast steels and aluminium alloy etc., the components commonly used for gears and gear shafts are cast iron, cast steel. Replace the materials with Aluminium content in this paper to reduce the product weight. Stress, displacement is evaluated at higher speed by considering weight reduction in the gearbox.
Reference :
-
- T. Tamamoto, K. Sayama, and K. Koganezawa, “Multi-joint gripper with Differential Gear System,” in IEEE International Conference on Intelligent Robots and Systems, 2014, doi: 10.1109/IROS.2014.6942534.
- S. He, Q. Jia, G. Chen, and H. Sun, “Modeling and dynamic analysis of planetary gear transmission joints with backlash,” Int. J. Control Autom., 2015, doi: 10.14257/ijca.2015.8.2.16.
- M. Bozca, “Transmission error model-based optimisation of the geometric design parameters of an automotive transmission gearbox to reduce gear-rattle noise,” Appl. Acoust., 2018, doi: 10.1016/j.apacoust.2017.10.005
- C. Zhou, Z. Li, B. Hu, H. Zhan, and X. Han, “Analytical solution to bending and contact strength of spiral bevel gears in consideration of friction,” Int. J. Mech. Sci., 2017, doi: 10.1016/j.ijmecsci.2017.05.010.
- J. Liang and L. Xin, “Dynamic simulation of spiral bevel gear based on solidworks and adams,” J. Theor. Appl. Inf. Technol., 2013.