PRECISION COMPLETE DIGITAL LINEAR HYDRAULIC DRIVE

摘要

FIELD: machine building.SUBSTANCE: hydraulic drive comprises a single-rod hydraulic power cylinder with a feedback position sensor, a distribution valve with a proportional solenoid or a drive step motor; the sensor is operated on the basis of photovoltaic conversion, is interlocked to the hydraulic cylinder rod by a friction roll with a magnetic rim and is set coaxially with the roll in an eccentric bush providing for the possibility to regulate the tightness in the coupling of the roll with the rod.EFFECT: obtaining of through digital conversion of control signals, design simplification and improvement of the hydraulic cylinder operation reliability.2 dwg