Rotary vertical scroll positioner of excavator

The utility model discloses a rotary vertical scroll positioner of excavator, include: the gyration vertical scroll the gyration on the vertical scroll cover be equipped with the bearing housing the location axle sleeve has been cup jointed to the outside of bearing housing, the gyration vertical scroll is located excavator platform assembly the lower part of gyration vertical scroll is equipped with elastomeric element the surface of location axle sleeve is equipped with the engaging tooth tooth be equipped with on the excavator platform assembly with engaging tooth tooth matched with meshes the fluted disc. The technical scheme of the utility model make and to control rot. Angle and precision simultaneously in the gyration, increase the stability of gyration back excavator angle.