SPRINKLING MACHINE Russian patent published in 2006 - IPC A01G25/09 

FIELD: agricultural engineering, in particular, equipment for sprinkler irrigation of farm crops.

SUBSTANCE: sprinkling machine is adapted for mounting on tractor frame and is equipped with pumping plant, central column, pipelines and mechanisms for changing inclination angle of pipelines relative to horizontal plane. Pumping plant has water intake float valve and is hydraulically communicated with pipelines through flexible members. Pipelines are hung to central column through cable tension members. Pipelines are equipped with gun sprinkler units fixed on their free ends and short-range sprinkler units disposed lengthwise thereof. Mechanisms for changing pipeline inclination angles relative to horizontal plane are formed as power hydraulic cylinders mounted with their bases on central column, their stems being kinematically connected with ends of cable tension members. Gun sprinkler units and short-range sprinkler units are mounted on pipelines so as to keep unit casings in vertical position by means of counterweights. Counterweight body is positioned for rotation around horizontal axis on threaded pipe sleeve. One end of pipe sleeve is fixed by means of check nut in threaded part of nipple oriented in horizontal plane on pipeline. Cavity of pipe sleeve is closed at its other end with treaded stopper. Casing is positioned on outer surface of pipe sleeve between washers made from antifriction material. Washers are biased on said surface by means of flexible member, such as compression spring disposed between shaped washer and disk mounted in conjunction with check nut on free threaded end of pipe sleeve. Counterweight body cavity is adapted for filling with liquid ballast. Water used as liquid ballast is delivered through nipple radial openings. Casing cavity is hydraulically communicated with threaded receptacle for mounting threaded part, casing of gun sprinkler unit or casing of short-range sprinkler unit.

EFFECT: improved quality of sprinkling regardless of wind direction and speed in the process of sprinkling farm crops.

5 dwg