Design, Modelling and Analysis of Lathe Tumbler Gear by using Different Materials

International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue VII, July 2018 | ISSN 2321–2705

Design, Modelling and Analysis of Lathe Tumbler Gear by using Different Materials

Mohd Hassan, Patel Fuzail Irfan, Shashi Kumar G

Department of Mechanical Engineering, Bearys Institute of Technology, Mangaluru, Karnataka, India

Abstract- Spur gear is the simplest & widely used component in power transmission system. A spur Gear is generally subjected to bending stress which causes teeth failure. However it is observed that performance of the spur gear is not satisfactory in certain applications and therefore it is required to explore some alternate materials to improve the performance of the spur gears. Composite materials provide adequate strength with weight reduction and they are emerging as a better alternative for replacing metallic gears. In this project analysis is done by considering different materials for gears like Cast Iron, Carbon fiber / Epoxy, Glass filled Nylon 6, Aluminium Silicon Carbide, Nylon 101, Polyoxymethylene, Aluminium Alloy and Titanium Alloy.

Keywords- Gear, Composite, Ansys, fibre, Epoxy

I. INTRODUCTION

1.1 Background of Gear

Gears are the most useful and common means of transmitting motion and power in the today modern engineering field. They vary from tiny size used in watches to the large gears used in the lifting devices and speed reducers. Gears are the valuable mechanical element of mechanism such as rolling machinery, metal cutting machinery and automotive machinery. Gears with toothed shape generally used to vary or change speed power ratio also to change the direction of input and output shaft. Gears are used in pairs and each gear is usually attached to a rotating shaft. Geared devices can change the speed, torque, and direction of a power source. Gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine. The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, producing translation instead of rotation. Gear is the one of the important machine element in the mechanical power transmission system. Because of the high degree of reliability and compactness gears dominates the field of mechanical power transmission. Gearbox is used to convert the input provided by a prime mover into an output required by end application. Due to increasing demand for quiet and long-term power transmission in machines, vehicles, elevators and generators, people are looking for a more precise analysis method of the gear systems.