Dynamic differential drive

Details Dynamic differential drive Dynamic differential drive

1987-09-03

1990-10-23

Schmidt, Frederick R.

Turning

Lathe

Revolvable cutter heads

82 12, B23B 300

Patent

active

049643223

ABSTRACT:
A differential drive for rotation of a central shaft correspoding in contrast to a conventional axially displaced drawbar. The invention employs a harmonic drive gear arrangement having a stationary axle and a servo motor driven rotary axle to produce zero differential out of the radial spline when the servo driven axle is stationary. Servo controllled displacement occurs through rotation of the servo driven axle with a substantial reduction with respect to rotation of the stationary axle, e.g., in the order of 97:1.

REFERENCES:
patent: 2959065 (1960-11-01), Musser

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