Patent ID: 6092749
Filing Date: 2000-07-25
Classification: B02C

Abstract:
A dual motor drive system for a roller grinder, said system comprising:a roller grinder having a front, a back and a pair of sides extending between said front and back of said roller grinder;said roller grinder having top and bottom sets of rollers extending between said sides of said roller grinder;each set of rollers having a front roller and a back roller;each roller of each set of rollers having a shaft having a pair of opposite ends one end of said shaft of each of said rollers being outwardly extended through a first side of said pair of sides of said roller grinder, another end of said shaft of each of said rollers being outwardly extended through a second side of said pair of sides of said roller grinder;each of said ends of said shafts of said rollers being rotatably mounted to the associated side of said roller grinder to permit free rotation of each said roller about its shaft;a first pulley being coupled to the end of said front roller of said top set of rollers extending from said first side of said roller grinder;a second pulley being coupled to the end of said front roller of said bottom set of rollers extending from said first side of said roller grinder;a third pulley being coupled to the end of said back roller of said top set of rollers extending from said second side of said roller grinder;a fourth pulley being coupled to the end of said back roller of said bottom set of rollers extending from said second side of said roller grinder;first and second motors, each motor having a rotating shaft extending therefrom;said rotating shaft of said first motor being positioned adjacent said first side of said roller grinder, said rotating shaft of said second motor being positioned adjacent said second side of said roller grinder;first and second flexible belts, said first and second flexible belts being formed out of a continuous endless strip;said first belt being looped around said first pulley, said second pulley, and said rotating shaft of said first motor such that said first belt is arranged in a generally triangular configuration; andsaid second belt being looped around said third pulley, said fourth pulley and said rotating shaft of said second motor such that said second belt is arranged in a generally triangular configuration.