| 摘要 |
The orchard spraying machine has a frame with wheels. A tank and a pump for pumping liquid are mounted on the frame. A ventilator attachment is fixed to the back wall of the tank. The attachment has a cylindrical inlet collector, which passes into a columnar outlet collector. Inside the inlet collector, there is a ventilator rotor assembly with adjustable angle of rotor blades. A direction-setting blade is fixed to the back internal wall of the columnar collector. Immobile anchors are fixed to the side walls of the collector. Spraying beams with sprayers are mounted on the external walls of the collector. It is characterised in that the back wall of the columnar collector (8) has a bottom opening (10) and a top opening (11). There is a supporting air duct (9) behind the back wall of the columnar collector (8).
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