BOOM-TYPE SPRINKLER UNIT Russian patent published in 2004 - IPC

FIELD: agricultural equipment used in girder constructions of movable boom-type sprinkler machines equipped with short-jet standard sprinkler heads.

SUBSTANCE: boom-type sprinkler unit has girder boom with water supplying belt connected to pump through S-shaped cranks arranged in opposed relation along vehicle cabin and through water flow divider. Drive mechanism of cable-and-pulley system is made in the form of shaft equipped with hydraulic engine. Pulleys of different sizes are mounted on shaft between bearing supports. Pulleys are kinematically connected through flexible threads with water supplying belt booms. Cable-and-pulley system is mounted on vehicle chassis by means of additional frame having pair of beams fixed on side members of vehicle chassis. Beam ends are joined with bars by means of columns. Shaft with electric engine of cable-and-pulley system is mounted on bars in longitudinal-vertical plane symmetrically with respect to frame. In transport position, booms of water supplying belt are imparted shape corresponding to that of parabolic branches. Guiding pulleys of cable-and-pulleys system are mounted in parabola focus. Cable-and-pulley system combined with girder booms and pump of sprinkler unit allow water supplying belt to be moved from operating position to transport position without necessity of disconnecting water supplying communications in pressure main and all operations to be performed without exiting of vehicle cabin by operator.

EFFECT: improved maneuverability of sprinkler unit during advancement between irrigated massifs.

3 cl, 3 dwg