SPRINKLER MACHINE Russian patent published in 2004 - IPC

FIELD: agriculture, in particular, irrigation equipment including multitower sprinkler machines. SUBSTANCE: sprinkler machine has stationary support with immovable rotary elbow, to which water supply pipeline equipped with telescopic unit and sprinkling units is connected. Water supply pipeline is mounted on self-propelled carts provided with hydraulic drives and speed regulators. Tail cart is equipped with valve-speed setter for setting machine speed. Telescopic unit functioning as periodic action compensator is mounted between rotary elbow and water supply pipeline forming leading end of telescopic unit. Periodic action compensator is made in the form of hydraulic cylinder with upper and lower cavities separated from one another by piston rigidly fixed on end of telescopic unit. Upper cavity of hydraulic cylinder is hydraulically communicated with first cart speed regulator through valve and lower cavity is connected through valve to atmosphere. Hydraulic cylinder is further equipped with piston stroke restrictors. Compensator closure at telescopic unit outlet end is equipped with sealing member. Such construction allows cart path to be varied after each irrigation procedure and track depth to be reduced and, accordingly, damage to sprinkler machine girdle to be excluded. EFFECT: increased efficiency, improved ecology control on irrigated field, reduced dynamic load applied to farm equipment and exercised by operators during care procedures and harvesting works. 1 dwg