DC permanent magnet type head pulley motor

• Main Authors: DONG ZHAOGANG, WEI YUXIAN, MA WENTIAN, SONG WEI, YU ZHONGHONG, XIA DEQUAN, ZHANG YUEMING, XU XIAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 23.03.2011
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model relates to a motor, in particular to a DC permanent magnet type head pulley motor used in an oil pumping unit in an oil well. The DC permanent magnet type head pulley motor adopts the structure that a stator silicon steel piece is fixed on a main shaft through a stator inner ring lock blade; a coil winding is enwound on the stator silicon steel piece; and a permanent magnet is arranged between the stator silicon steel piece and an outer rotor ring. The utility model has the advantages that the head pulley motor is suitable for the power-take-off of various hoisting machineries, and replaces the mechanical rotation part of the original hoisting machineries; the output power of the motor is directly used for hoisting, thereby realizing zero mechanical friction and zero loss, and since no mechanical friction and loss exist, electrical energy is greatly saved, specifically by 40% to 60%; and the maintenance cycle is prolonged, so that the operation cost of the equipment is greatly reduced owing