Beam rod type rail steel cushion device matched with rock foundation cutting machine

Disclosed is a beam rod type rail steel cushion device matched with a rock foundation cutting machine. A cushion plate is horizontally arranged on the bottom surface of rail steel; the left lateral end and the right lateral end of the cushion plate are fixedly connected with first square porous supporting blocks respectively; every first square porous supporting block is provided with a plurality of first vertical rod holes; a first square groove is horizontally cut in the middle of every first square porous supporting block; a first clamping plate is arranged in every first square groove; every first clamping plate is provided with a plurality of first vertical clamping holes; the outer lateral end of every first clamping plate is provided with a first protruding bolt rod; the outer lateral end of every first bolt rod is in screwing connection with a first knob; a plurality of first rudder rods are fastened on the side wall of every first knob; a plurality of steel bars penetrate the corresponding first vertical rod holes and first vertical clamping holes from top to bottom in turn respectively; a plurality of second square porous supporting blocks are clamped at different height positions of the lower ends of the steep bars respectively. The beam rod type rail steel cushion device matched with the rock foundation cutting machine has the advantages of being novel in structure, convenient to operate, flexible in height adjustment, high in cushion stability and long in service life.