| 摘要 |
<p>Disclosed is an electric motor having a rotor rolling on a stator-rolling surface wherein the electric motor converts feeding current pulses to magnetic rotary motion of the electric motor shaft (8). The stator (1) has on its circumference several magnetic circuits that are fed systematically with time-shifted current pulses and that stepwise attract the rotor (2) being freely and movably mounted in the electric motor radial direction. Inside diameter of the stator (1) differs from the rotor (2) outside diameter and therefore the rotor (2) eccentrically rolls on the stator (1) circumference and shifts relative thereto by each feeding current pulse by an exactly defined angle û a step. Connection of the electric motor rotor (2) and the shaft (8) is mediated through a swinging clutch (3). Stator teeth (4) are fixedly coupled with the stator (1) and rotor teeth (5) are fixedly coupled with the rotor (2) wherein they mutually form one internal spur gear system. Said internal spur gear system ensures parallelism of the stator longitudinal axis (24) and said rotor longitudinal axis (25), prevents slippage of the stator (1) relative to the rotor (2) and ensure constant angular shift û step of the electric motor shaft (8) in dependence on the feeding current pulse. Packing (13) of air gap extending between pole shoes (12) is attached to adjacent pole shoes (12).</p> |
