Raise boring machine with balanced thrust

The utility model discloses a thrust balanced raise boring machine which comprises a positioning plate, positioning holes are formed in the four corners of the positioning plate, a penetrating hole is formed in the center of the positioning plate, a drill rod body is arranged at the penetrating hole, through grooves are symmetrically formed in the positions, corresponding to the two sides of the penetrating hole, of the positioning plate, and through holes are formed in the through grooves. And transmission shells are symmetrically installed on the left side and the right side of the positioning plate, rolling bearings are fixedly connected to the inner walls of the sides, away from the positioning plate, of the transmission shells, screw rods are rotationally connected into the rolling bearings, and one ends of the screw rods sequentially penetrate through the rolling bearings, the transmission shells, the positioning plate and the through grooves and extend into the through grooves. The raise boring machine