The utility model discloses a
cutting arm convenient to steer and a heading
machine, and relates to the heading
machine field, the
cutting arm convenient to steer comprises a bearing seat, a steering
assembly and a displacement
assembly, an installation cylinder is fixed above the bearing seat, the steering
assembly is installed in the installation cylinder, a
rocker arm seat is installed above the steering assembly, one side of the
rocker arm seat is fixedly provided with a connecting seat, and the other side of the connecting seat is fixedly provided with a connecting rod. A first-stage large
rocker arm is installed on one side of the connecting base, a displacement assembly is installed on the lower portion of the inner side of the first-stage large rocker arm and comprises a moving base, a limiting sliding groove, a limiting sliding block and a hydraulic push rod, and the limiting sliding block is fixed to the position, close to the limiting sliding groove, of the inner side of the first-stage large rocker arm. According to the
cutting arm convenient to steer and the heading
machine, the steering assembly can conveniently drive the rocker arm base, the connecting base and the first-stage large rocker arm on the upper side of the steering assembly to steer stably, the displacement assembly can make the moving base move stably, then the second-stage small rocker arm can be driven to move, the heading range of the heading machine is adjustable, and functionality is better.