LUBRICANT SLINGER FOR AN ELECTRIC MOTOR AND METHOD OF ASSEMBLING SAME

摘要

LUBRICANT SLINGER FOR AN ELECTRIC MOTORAND METHOD OF ASSEMBLING SAMEABSTRACT OF THE DISCLOSUREA lubricant slinger mechanism for preventing theloss of oil or other lubricant which is pumpedbetween the rotor shaft and bearing in an electricmotor or other dynamoelectric machine. The slingeris mounted to the rotor shaft and mounted adjacentthe end of the bearing out of which oil flows as itis pumped along the shaft from the reservoir. Theslinger initially throws the oil radially outwardagainst an inner oil well cover, and the provision ofan impeller, such as a spiral vane on the outerperipheral surface of the slinger, imparts an axialcomponent of velocity to the lubricant which impelsit rearwardly toward the reservoir and prevents themigration of oil out of the forward end of the oilcover through which the rotor shaft extends. Theslinger, in one form thereof, includes an annular cupportion which overhangs the end of the bearing sothat lubricant is thrown off the slinger at a pointrearwardly of the end of the bearing. The slinger ispreferably formed with an opening that is larger indiameter than the shaft and includes a taperedsurface on one end so that as the brass rotor sleeveis inserted into it, it centers the slinger andenables the brass sleeve to be pressed therein bymeans of automatic assembly machinery.