Hydraulic Balancing Systems With Low Power Consumption and Constant Flow Pumps

Abstract

In this paper, authors show a cost-saving method of replacing variable flow pumps with pressure regulator within hydraulic balancing systems for heavy machine-tools, with simple, constant flow pumps. The system proposed is relevant for heavy machine-tools where large loads need balancing: cross beams, slides, enclosures, etc. The basic hydraulic schematics, calculation method and results of certain simulations are displayed here. A characteristic of these systems is the use of routine hydraulic equipment, thus providing low costs. Hydraulic equipment used in such balancing systems may successfully replace complex and expensive equipment used in feeding / positioning kinematic chains within CNC heavy machine-tools, like: Horizontal Boring and Milling Machines (HBM), Vertical Lathes (VL) and Gantry Machines.