Design and Development of Flat Belt Dimpled Pulley

Abstract

Belt transmissions are often used in industry machinery to transmit power. Other fields of the application that concerns Front End Accessory of Automotive engines drive, it recently asks for the performances that allow development of new technology innovations as starter-alternator integration in transmission. Belt slips on the pulley causes the transmission error. This can be controlled to some extent using appropriate initial tension. The flat belt pulley surface is plain. In the present study, the effect of positive geometry square and round shape dimpled surface instead of plain is investigated. The remaining parameters except the contact surface of belt and pulley are same. The experimental set up developed is used to determine the belt slip and slip torque for varying load and speed conditions. Two different dimple geometries are considered for this investigation. The paper elaborates how we can improve performance by application of aluminum material liners on the flat pulley. This one is relatively newer method. For Geometrical profile design of square & round shape positive geometry flat belt pulley we use 2-d cad, for 3-d modeling we use Unigraphix N-x.