Development of a Hydraulic System for the Automatic Expansion of Powered Roof Support

A mechanical support in a longwall complex requires proper supervision and control of operating parameters because it is responsible for the safety machines workers. Its main functions are to protect excavation against adverse effects rock mass move along with operational progress shearer scraper conveyor. In era Industry 4.0 as well green economy sustainable development, development devices included an important area invention. When comes complex, authors propose changes hydraulic system. The purpose work was develop system that can automatically expand legs powered support. Tests were carried out under real conditions while equipping section prototypical monitoring correct operation prototype. This article presents installation testing on longwall. innovative solution proposed by consisted introducing double valve block into housing, which enables function automatic expansion. aimed at shortening time powered-support-section operator. research results made possible evaluate usefulness solution. type be considered technical process coal mining underground mine. Analysis presented this paper, from conducted its conclusions, practical help enclosure users improve reliability achieve optimal performance.