Electric motor drive for a slow-running annular rotor of a proce

Details Electric motor drive for a slow-running annular rotor of a proce Electric motor drive for a slow-running annular rotor of a proce

1983-12-13

1985-04-02

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

37189, 310 58, 310 64, E02F 329

Patent

active

045089868

ABSTRACT:
A drive for a slow-running annular rotor of a processing machine includes a rotor supported on a standing tubular body by two bearings, between which the the electric motor driving the annular rotor is fastened to the annular rotor. The stator of the electric motor is disposed on and is likewise supported by the tubular body. The electric motor is of encapsulated design, and a gaseous coolant required for cooling the motor is conducted by forced circulation in a closed cooling loop which includes a heat exchanger disposed in the interior of the tubular body. The heat exchanger is designed as an air/air cooler. Such a drive is particularly suitable for bucket wheels of large-volume baggers employed for example in dusty areas lacking cooling water, for lignite strip mining.

REFERENCES:
patent: 2661434 (1953-12-01), Kilbourne
patent: 3704759 (1972-12-01), Vitkov et al.

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