ELEVATOR MACHINE WITH EXTERNAL ROTOR AND MOTOR WITHIN TRACTION SHEAVE

摘要

A DRIVE MACHINE (10) FOR ELEVATORS HAS A ROTATABLE DRIVE SHEAVE (18) THAT HAS AN INNER SURFACE AND AN OUTER SURFACE WITH AT LEAST ONE GROOVE (34) FOR RECEIVING A HOIST ROPE. A ROTOR (36) IS ATTACHED TO THE INNER SURFACE OF THE SHEAVE (18). A STATOR (38) IS CONNECTED TO A FIXED HOLLOW SHAFT (22), WHEREIN THE STATOR (38), ROTOR (36), AND DRIVE SHEAVE (18) ARE CONCENTRICALLY POSITIONED ABOUT A CENTERLINE OF THE FIXED HOLLOW SHAFT (22). A PLURALITY OF BEARINGS (42) ARE PLACED BETWEEN THE SHAFT (22) AND ROTOR (36).