| 摘要 |
FIELD: agriculture. SUBSTANCE: machine has self-propelled supports and girders mounted on supports. Each girder has arced delivery pipeline with water discharge connections and two draw bars hanging downward and curved forward and rearward in the direction of advancement of machine. Surface sprinklers are positioned along draw bars and connected via hoses to water discharge connections. Water is supplied from single pressure hydrant mounted in stationary pyramid-shaped support. Surface sprinklers are provided with mounting thin-walled pipes adapted for fixing pipeline draw bars. Each mounting pipe has two cantilevered arms. Mounting pipes are positioned at an angle to axial line of delivery pipeline allowing end of one cantilevered arm with sprinkler carrying boom to be disposed on path of displacement of one water discharge connection in the process of irrigation, and end of other cantilevered arm to be disposed on path of displacement of subsequent water discharge connection. As pipeline connections move away from their centers of revolution, length of cantilevered arms of mounting pipes may be increased for attaching brackets with booms and sprinkler units or nozzles, as well as number of brackets with vertical booms and sprinkler units or nozzles may be changed to maintain optimum sprinkler application rate. EFFECT: increased efficiency by reduced expenses for constructing and operating of irrigation system. 6 dwg
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