DRIVING METHOD FOR STEP MOTOR

PURPOSE:To enable a step motor to be driven with the pull-in torque smaller than the load torque to improve the performance, by providing clearance in the direction of rotation between a power transmission and an axis of rotation, and by rotating the axis of rotation in no-load condition in driving....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ISHII HIDEKAZU, KOSAKA KAZUMICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PURPOSE:To enable a step motor to be driven with the pull-in torque smaller than the load torque to improve the performance, by providing clearance in the direction of rotation between a power transmission and an axis of rotation, and by rotating the axis of rotation in no-load condition in driving. CONSTITUTION:In a power transmission 2 installed to an axis of rotation 1 (a) of a step motor 1, a gear 2(a) is formed on the outside circumference of this power transmission 2. Clearance is formed in the direction of rotation between the power transmission 2 and the axis of rotation 1(a). A pin 4 is fixed to the axis of rotation l(a). An E ring 5 is also provided which fits into grooves 6 formed on the tip of the axis of rotation 1(a) to prevent the power transmission from dropping off.