FIELD: mining industry. SUBSTANCE: hydraulic section relates to facilities intended for supporting extracting underground workings. This section ensures operation at relatively large range of displacing skis at their raising. Section of hydraulic working support is provided with two skis. Resting on skis are posts which support upper beam. Resting between skis on cross-member is hydraulic cylinder for walking movement. Rod of this hydraulic cylinder brings its action at side of gobbling upon stem of walking. Stem of walking passes under hydraulic cylinder for walking movement and is connected with face conveyor. Resting on stem is vertically installed hydraulic cylinder intended for raising skis in process of walking movement. Ski raising hydraulic cylinder is adapted for displacement within longitudinal guide members at internal sides of skis. U-shaped traction yoke has slots which are made in elbows directed towards lying side. Traction yoke is supported in center by ski raising cylinder and is connected with skis by means of load-bearing pins secured on skis. EFFECT: higher efficiency. 3 cl, 5 dwg
