The invention provides a tunnelling and excavating integrated
machine cutting head. The
cutting head mainly comprises a
hydraulic motor, a
hydraulic motor fixing box, a T-shaped gear
reducer, rotating brackets and rollers on which a plurality of pick-shaped cutters are distributed. The
cutting head has the following beneficial effects: by adopting the
hydraulic motor for driving, the explosion-proof requirement in the mine and the convenience of use in the ground
engineering are satisfied; by adopting the T-shaped gear
reducer, the cutting head has simple and compact whole structure; the cutting head has strong tunnelling and excavating capabilities; a hydraulic motor output shaft is used for transmitting power to a
bevel gear set, after primary bevel gears change the direction of rotation
through transmission, the power is transferred to an intermediate gear by pinions of a straight gear set to realize primary
speed reduction, then the power is transferred to gearwheels, and finally the power is transferred to the bilaterally symmetrical rotating brackets by spline shafts; the rocks are
cut and broken by the rollers which are sleeved on the rotating brackets and provided with pick-shaped cutters; and the cutting head can be used for tunnelling, excavating and breaking the rocks with
hardness being less than 8, can satisfy the requirement for
ditch excavation in the mine and on the ground, saves the labor investment, and improves the degree of
mechanization and safety of
coal mine and ground
engineering development.