HYDRAULIC CONTROL SYSTEM OF MECHANIZED SUPPORT SECTION

摘要

FIELD: mining machinery. SUBSTANCE: hydraulic control system is of increased pressure with additional control chamber which is limited by movable piston, cylinder case at side of high-pressure chamber and movable rod. Control chamber communicates with control line of piston space of hydraulic prop control unit. Extending rod functions as indicator of amount of liquid enclosed in high-pressure chamber. Rod is connected with extending piston at side of low-pressure chamber. High-pressure chamber is provided with adjustable shut-off valve and its output is connected directly with piston space of hydraulic prop, and through check valve it is connected with control line of piston space of hydraulic prop control unit. EFFECT: high efficiency.