Be applied to brokenly coal and prevent abrupt nozzle rotary device

The utility model provides a be applied to brokenly coal and prevent abrupt nozzle rotary device mainly includes drive arrangement, transmission, rotary device and support. Its characterized in that hydraulic motor drives gear I and rotates, gear I and the meshing of gear II, gear II and the meshing of gear III, gear III and sleeve pipe gear engagement, and then drive sleeve pipe gear revolve, the eccentric strap is installed in the quill gear, there is the buckle on the eccentric strap, there is the draw -in groove on the quill gear, the buckle card is in the draw -in groove, when sleeve pipe gear revolve contacts with the buckle to the draw -in groove is marginal, the quill gear drives the eccentric strap and rotates, a water pipe side -mounting is in universal cover, there is the spherical lantern ring in the universal cover, be used for the adjusting water pipe cone angle, the water pipe is inboard near the eccentric strap, one end is installed on the coupling, use the coupling to do the rotation as the f