The invention provides a small-opening panel type heading
machine cutter head and a heading
machine comprising the same, and belongs to the technical field of
tunnel engineering construction. Comprising a panel, a cutter and an adjustable sealing plate
assembly, a plurality of
slag discharging holes are formed in the panel, and the aperture size of each
slag discharging hole is smaller than the particle size through which a
slurry discharging pump can pass; the cross section of each
slag discharge hole is square, and the vertical section of each slag
discharge hole is of a conical horn-shaped structure with a small front part and a large rear part; a cutter is installed on the side end face, close to the
tunneling direction, of the panel. The adjustable sealing plate
assembly is arranged at the end, away from the cutter, of the panel. By arranging the opening-adjustable sealing plate
assembly, when the small-opening panel type heading
machine cutterhead carries out heading in stratums with poor stability such as sandy soil, an outer opening is sealed through a sealing plate, and the opening ratio of the cutterhead is reduced so as to improve the balancing capacity of the cutterhead to a tunnel face; when the cutterhead is tunneled in clay and other stratums with good stability, the sealing plate is adjusted to increase the
aperture ratio of the cutterhead, the cutterhead is prevented from being pasted, and the deslagging efficiency of the cutterhead is improved.