How is the hydraulic support moving
The hydraulic support is connected to the scraper conveyor by pushing the lever and the crosshead: pushing the jack extension, pushing the lever out, pushing the scraper conveyor forward a step, which is called pushing; pushing the jack to take, The board conveyor reacts on the stand, driving the carriage forward by a step, which is called a shift frame.
(1) before the shift frame, open the stent into the liquid valve, clean the frame of floating coal, floating gangue and other debris, or are not allowed to shift frame; also check the roof The situation, and found that the roof broken or pumping the phenomenon of the top of the row, to deal with and then move the shelves, to prevent the process of moving off the roof is too large and cause injury; and to check the front whether there are cables, pipes and other equipment, Clean up and then move the shelves; if you can not clean up the mark after the shelves, to be shut down after a comprehensive treatment. (2) when the shift frame when the first column, so that the top beam from the top plate, stop the column quickly shift frame; for broken roof to allow "rub top shift" or "with pressure shift frame" Should be out of the metal net to avoid tearing the net. (3) after the shift must be arranged neatly formed a straight line; in the roof before and after the top are connected, the appropriate adjustment of the balance jack, so that the bracket to achieve the best support effect.
Hydraulic support is a kind of hydraulic power unit which uses the liquid pressure to generate the support force and realize the automatic movement to carry out the roof support and management. It is an indispensable supporting equipment for comprehensive mechanized coal mining. Used to control the coal mining face pressure structure of the mine. The surface pressure is applied to the hydraulic support.
Hydraulic support shift method: push the jack extension, push the rod out, push the scraper conveyor forward a step, and then move the jack close, push the lever to take back, scraper conveyor reaction on the bracket, driving the stent forward a step Distance, complete hydraulic support shift frame.
