| 摘要 |
A fan assembly for a spraying machine, usable in orcharding spraying machines for effecting spraying in orchards. The fan assembly of the invention, on a wheeled chassis, in addition to a tank (11) with the associated assemblies, has two frames mounted spaced apart along the symmetry axis of a supporting frame (9): a flat broken frame (1) behind a fan (5) and a flat front frame (2) in front of the fan (5). The fan (5) is a radial fan and it has at the inlet a multi-segment diaphragm choke valve (5.3) and a solid collector outlet connection port (5.5) with a rotational plate choke valve (5.7), mounted to a shaft (5.8.3). Both choke valves (5.3) and (5.7) are powered by electric motors (5.4) and (5.8). The assembly is constructively capable to cooperate with an electronic control system that operates suitably to different requirements of diverse protection program schemes. |
