The impeller is one of the most critical parts in the s […]
The impeller is one of the most critical parts in the sprayer, which directly affects the spray quality. The impeller consists of a front impeller and a rear impeller, and the front and rear impellers are connected by eight fixed pins. On the rear impeller, there is a 1.5 mm thick shoulder on each side of the pin hole to ensure a certain distance between the front and rear impellers. After the front and rear impellers are installed, press one end of the micro motor shaft so that the impeller rotates.
The front and rear impellers are disc-shaped, mainly to prevent the drops of the drug adhering to the surface of the impeller from falling or directly smashing, causing phytotoxicity. In order to make the atomized fog point more uniform, 36 is engraved on the outer edge of the two impellers. The semi-conical small teeth are used to reduce the adhesion of the film attached to the surface of the impeller, and become the starting point of the fog point at the time of the separation, so that the liquid regularly draws a strip of filament liquid along it.
One end of the liquid-proof sleeve is a hole with a diameter of 7 mm, and the front end of the impeller shaft is tightly closed; the other end is extended into the groove of the end of the motor casing to prevent the motor shaft from being exposed to the rust of the liquid. The liquid-proof sleeve rotates with the impeller at a high speed. The liquid splashed on it is thrown out to prevent the liquid from infiltrating the inside of the motor and causing corrosion. Grease can also be applied to the liquid-proof sleeve to increase bearing lubrication and improve motor life.
The nozzle holder is in the shape of a national column, and the sleeve is placed inside the tube. Install the vial holder in the upper fork. There are two circular holes with a diameter of 4 mm on the underside of the fork. They are matched with five semi-circular grooves on the shoulder of the vial holder, so that the nozzle body can be adjusted in five different rotation angles according to the operation requirements. There is a circular hole with a diameter of 3.2 mm in the fork for the thread.