HYDRAULIC CIRCUIT OF GEAR-CUTTING MACHINE FOR MAKING GEAR RACKS

摘要

FIELD: mechanical engineering. SUBSTANCE: step hydraulic drives are used for driving blank and tool. Each of the drives comprises step hydraulic motor connected with the lead screw of a unit for longitudinal feeding of the table and worm gear of the drive of a gear cutter and generators of hydraulic pulses each of which controls an individual step hydraulic motor. The gear ratio of the hydraulic circuit depends on the ratio between the frequencies of hydraulic pulses supplied from each generator of hydraulic pulses to the controllable hydraulic step motor. EFFECT: expanded functional capabilities.