Patent ID: 9061833
Filing Date: 2015-06-23
Classification: B65G,H02K

Abstract:
1. A drum motor for driving a conveyor belt in hygienic surroundings involving exposure to splash water and pressurized water, comprising: a drum motor shell having a sealed hollow space therein, motor components arranged in said hollow space having a rotor and a stator, a first bearing journal arranged at a first end of the drum motor shell, and a second bearing journal arranged at a second end of the drum motor shell, the rotor and the stator being mechanically coupled to the drum motor shell and to the first and second bearing journals in such a way that relative rotation between the rotor and stator causes relative rotation between the drum motor shell, for the one part, and the first and second bearing journals, for the other part, the drum motor shell having at least one torque transfer section in which the outer surface of the drum motor shell is polygonal in cross-section, and wherein the inner surface of the drum motor shell in the torque transfer section is polygonal in cross-section.