Low-noise branch chipper

The utility model discloses a low-noise branch chipper which comprises prime motors, couplers, speed reducers, gears, a lower cutter shaft, disc type cutters, cutter propping rings, locking nuts, a lower box seat, end covers, a middle box body, an upper cutter shaft, an upper box cover, a feed hopper, long bolts, and a discharge hopper. The low-noise branch chipper is characterized in that the box body structure of the chipper comprises three sections, namely the lower box seat, the middle box body and the upper box cover, and the three sections of the box bodies are fastened together by the four long bolts beside a bearing seat hole; the lower cutter shaft and the upper cutter shaft are arranged in the middle box body; the upper cutter shaft and the lower cutter shaft are provided with the disc type cutters and the cutter propping rings; a pair of gears are arranged at the end parts of the two cutter shafts. When the chipper is in chipping, the powers of the prime motors are input to the cutter shafts after