When the vane pump rotor rotates, the vane tip is tightly attached to the inner surface of the stator under the action of centrifugal force and pressure oil. In this way, the working volume formed by the two vanes and the inner surface of the rotor and stator first absorbs oil from small to large and then discharges oil from large to small. When the vane rotates one circle, the oil Absorpcija in praznjenje se končata enkrat .
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Črpalka je sestavljena iz rotorja 1, statorja 2, vane 3, oljne razdelilne plošče in končnega pokrova . Notranja površina statorja je cilindrična luknja . Obstaja ekscentričnost med rotorjem in stator rotor rotates and the pressure oil entering the root of the vane, the top of the vane is tightly attached to the inner surface of the stator, so that a sealed working chamber is formed between the two adjacent vanes, the oil distribution plate, the stator and the rotor. When the rotor rotates counterclockwise, the vane on the right side of the figure extends outward, the volume of the sealed working chamber gradually increases, and Ustvarja se vakuum, zato se olje sesa skozi oljno sesalno vrata 6 in okno na plošči za porazdelitev olja 5. na levi strani slike . odvzemi, ki se potegnijo navznoter, se prostornina zaprte komore postopoma zmanjšuje in olje v zaprti komori se skozi drugo okno s pritiskom na olje s pritiskom na oljno okno s pritiskom olja, ki se pretaka skozi drugo okno oljne porazdelitvene port 1 in oljno pristanišče oljna okna 1 in oljna tlačna port 1 in oljna tlačna pristanišče s pritiskom na oljno razdelilno komoro. pump absorbs and presses oil once during the rotation of the rotor, so it is called a single-acting pump. The rotor is subjected to radial hydraulic unbalanced force, so it is also called an unbalanced pump, and its bearing load is large. By changing the eccentricity between the stator and the rotor, the displacement of the pump can be changed, so this type of pump is spremenljiva črpalka .
2. delovno načelo dvojnega delujočega črpalke
Its working principle is similar to that of a single-acting vane pump, the only difference is that the stator surface is composed of eight parts: two long radius arcs, two short radius arcs and four transition curves, and the stator and rotor are concentric. When the rotor rotates clockwise as shown in the figure, the volume of the sealed working chamber gradually increases at the upper left corner and the lower right corner, which is the oil sesalno območje in se postopoma zmanjšuje v spodnjem levem kotu in zgornjem desnem kotu, ki je območje tlaka olja; there is an oil sealing area between the oil suction area and the oil pressure area to separate them. Each time the rotor of this pump rotates, each sealed working chamber completes the oil suction and oil pressure action twice, so it is called a double-acting vane pump. The two suction areas and two pressure areas of the pump are radially symmetrical, and the liquid pressure acting on the rotor is radially balanced, so it is Imenuje se tudi uravnoteženo črpalko za lovce .
