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 absorption and Изхвърлянето е завършено след .
1. принцип на работа на помпата с еднодействаща лопатка
The pump consists of rotor 1, stator 2, vane 3, oil distribution plate and end cover. The inner surface of the stator is a cylindrical hole. There is an eccentricity between the rotor and the stator. The vane can slide flexibly in the groove of the rotor. Under the centrifugal force when the rotor Въртайте се и маслото под налягане, влизащо в корена на лопатката, горната част на лопатката е плътно прикрепена към вътрешната повърхност на статора, така че между двете съседни лопатки се образува запечатана работеща камера, и се върти на маслото, който се върти на върха, стабилизираният памов vacuum is generated, so the oil is sucked in through the oil suction port 6 and the window on the oil distribution plate 5. On the left side of the figure. The vanes retract inward, the volume of the sealed chamber gradually decreases, and the oil in the sealed chamber is pressed out through another window of the oil distribution plate and the oil pressure port 1 and output to the system. This 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 a variable помпа .
2. принцип на работа на помпата с двойно действие
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 Засмукване и постепенно намалява в долния ляв ъгъл и горния десен ъгъл, който е зоната на налягането на маслото; 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 Нарича се също балансирана помпа за лопатки .
