| 摘要 |
This invention relates to an improved spraying system for spraying fluid chemicals. The improved spraying system includes a supply means for containing a supply of fluid chemicals and a series of spraying heads for spraying chemicals on foliage or a crop to be sprayed. Each of the spraying heads includes an annular diffusion member and a rotatable impeller means for developing a uniform blast of directed air pressure over the outer surface of the diffusion member. A dispensing nozzle is operatively associated with each of the spraying heads for dispensing a quantity of fluid chemicals into the diffusion member to be directed by centrifugal force out through the diffusion member into the blast of air. The dispensing nozzles are coaxially mounted and extend through the rotatably driven impeller means. A supply pump is operatively associated with the supply means and the dispensing nozzles for delivering a supply of fluid chemicals under pressure to the dispensing nozzles. A hydraulically driven motor means is operatively associated with each of the spraying heads and includes a driving gear coaxially mounted relative to the dispensing nozzle, the diffusion member and the rotatable impeller means. A hydraulic pump means is operatively associated with the motor means for delivering hydraulic fluid under pressure for operation of the motor means. The improved spraying system is designed for being utilized on a plurality of supporting vehicle frameworks. One of the supporting vehicles includes a trailer having a movably mounted boom for supporting a series of the spraying heads for movement in a vertical plane between operative and inoperative positions. A second supporting means includes a framework having connectable members which will permit the framework to be connected to conventional three point hitch provided on a supporting vehicle. A third type of supporting framework includes a transverse mast having a pair of laterally extending booms which are adapted to be swung about vertical axis from laterally extending positions to fore and aft positions. Each of the laterally extending booms is detailed for supporting at least one spraying head.
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