Hydraulic support test bench and hydraulic conveying device thereof

The utility model discloses a hydraulic support test bench and hydraulic conveying device thereof. The jack that switches is being prepared including being used for the bracketing to treat experimental hydraulic support's layer board, being connected with being used for driving the layer board on the layer board to the hydraulic conveying device between position and the experimental position, the jack has more than the two -stage, and the flexible direction syntropy of jack at different levels, and jack at different levels meet in proper order in flexible direction and form and be used for the multiple -step type telescopic machanism of connection between frame and layer board. The utility model discloses adding up the stroke with the short stroke of multistage jack and having replaced current list to organize the long stroke of jack, when the lapse of carrying out hydraulic support, the stroke length of single jack can be shortened like this, simultaneously the lapse speed of the linkage quickening layer boa