Automatic two helical pitch worm structure of fire water monitor

The utility model provides an automatic two helical pitch worm structure of fire water monitor, includes organism, plum coupling and feed pipe, organism one side is equipped with step -by -step gear motor, and adjusting nut is installed to the organism opposite side, has two helical pitch worms at organism internally mounted, step -by -step gear motor is connected with plum coupling, the meshing of two helical pitch worms side has the worm wheel, alternate at the worm wheel center has the feed pipe, is equipped with a plurality of housing screw fastening feed pipe on the worm wheel. The utility model discloses a two helical pitch worm structure have realized that worm transmission pair does not have the sideshake transmission under the combined action of each parts, eliminated big gun bodyhorizontal rotary drum move with the hysterisis error of barrel every single move angle, make the far point positioning accuracy of automatic fire control water cannon improve, fire control effect isobvious. 种自动消防水炮的双导程蜗杆结构，