Pebble collecting device matched with sinking method vertical shaft heading machine

The utility model relates to a pebble collecting device, in particular to a pebble collecting device matched with a sinking-method vertical shaft heading machine, which comprises a mounting seat in transmission connection with a transmission shaft of the heading machine, a plurality of cutter arms distributed radially are arranged on the periphery of the mounting seat, one end of each cutter arm is connected with the mounting seat, and the other end of each cutter arm is connected with the sinking-method vertical shaft heading machine. A collecting box is arranged between every two adjacent cutterhead arms, the collecting boxes can move along with the cutterheads, each collecting box is of a hollow structure, a containing cavity used for containing pebbles is formed in the middle of each collecting box, and a feeding port is formed in the side, facing the rotating direction of the cutterhead arms, of each collecting box. The shovel plate is arranged at the bottom of the collecting box and corresponds to the p