Drive device with two mutually counteracting motors for eliminat

Details Drive device with two mutually counteracting motors for eliminat Drive device with two mutually counteracting motors for eliminat

1982-07-19

1984-07-03

Witkowski, Stanley J.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Series connected motors

318625, G05B 1132

Patent

active

044581823

ABSTRACT:
With small drive torque the motors counteract one another, with full-load output they act in the same sense upon the load, so that the backlash or play between the drive, the gearing and the load is eliminated. As the motors there are used compound motors whose armatures and shunt windings are connected in series. The series excitation currents are controlled by means of two 2-quadrant power adjustment or setting elements and the external excitation current is controlled by a 2-quadrant adjustment or setting element of small output.

REFERENCES:
patent: 876924 (1908-01-01), Alexanderson
patent: 885128 (1908-04-01), Alexanderson
patent: 1286130 (1918-11-01), Simmon
patent: 3590349 (1969-05-01), Safinddin
patent: 4325015 (1982-04-01), Heiberger
patent: 4354144 (1982-10-01), McCarthy

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