05-11-2014, 04:16 PM
Abstracts: A device that mechanically regulates the speed the speed of a machine preventing it from going any faster than a preset velocity.The safety mechanism called the over speed governor is an improved version which uses centrifugal force that causes a system of weight to swing outward towards the real should the carry speed exceed a certain limit, although the travel system has changed little, its control system has been revolutionized. In overspeed governor, the main component is pedestal in the middle of which bracket is assembled and on upper portion pulley is assembled. The pulley and pedestal are assembled by two bearing and one mild steel shaft.When motor transmit the shaft power pulley on motor shaft is rotates and using rope transmission pulley of over speed governor is rotates. Whenever pulley rotates than and then roller of the bracket guides the bracket and gives movement to the bracket by spring. When RPM transported by motor will raise pulley of the speed governor will rotate rapidly and the design of the pulley do not let governor to rotate on high speed and suddenly stop the pulley.