Lab Reports and Workshop Reports

  Introduction A belt drive is known as a looped flexible strip which is used to make easier the processes of machines and increase the efficiency of them. This mechanism includes pulleys on each shaft and one or more belts may be connected on each pulley to transmit rotary motion and power from one to others. Commonly belt drives are used for the purpose of transmitting power between a source and a load at a considerable distance. Belt drives are cost effective power transmitting method and free of lubricants. In real world, belt drives are widely can be seen in lathe machines, grinders, automotive systems such as fan belt, air conditioning compressor motor etc. Belts are classified in various types such as flat belts, V belts, and synchronous belts and round belts as for their different application purposes. Due to some beneficial facts such as easy installation, low maintenance, shock absorption, high efficiency, belt drives are widely used in industrial engineering application

Introduction A universal joint or flexible coupling is basically consisted of two shafts for transmitting circular motion from one link to other link. A universal joint or a flexible coupling is a joint which transmits rotational motion from one axis to another axis easily. Main advantage of universal joint is it can work with large angles between the shafts or between two axes. Normally minimum lower limit angle is 30. In normal use if the angle between two links is minor than 30 degrees a flexible coupling is used. Universal joints are used when the angles between links are international. There are two types of universal joints • Hooke’s or Cardan Coupling • Constant Velocity Joint Even though these names are often used, the name individually does not give the specific differences between hook’s and constant couplings. Basically a Hooke’s coupling has a fixed arm and the constant velocity joint has variable arm. Objectives  To identify the correlation of velocity and di