Izinga lokusebenza le-radial piston pump

Kwadalwa ngo 05.17

Radiale Kolbenpumpen Leistungsparameter

Die Hauptleistung der Radialkolbenpumpe umfasst Druck, Verdrängung, Geschwindigkeit, Effizienz und Lebensdauer. Die Hauptstrukturparameter umfassen den Durchmesser und die Anzahl der Kolben, den Neigungswinkel der Schwenkplatte und so weiter.

(1) Ku radiali piston pump, umthamo we-valve distribution pump uphakathi, ngokuvamile ungaphezu kuka-32Mpa, futhi ufinyelela ku-200MPa kwezinye izimpahla; umthamo we-axial distribution pump ngokuvamile ungaphezu kuka-20MPa.

(2) Idisplacement ye-radial piston pump inonyanya kuenderana ne-diameter ye-plunger, effective stroke uye eccentricity ye-plunger, uye huwandu hwechiito chechikamu chimwe nechimwe mu-cycles yebasa.

The general formula for calculating the displacement of radial piston pump is as follows

V=K(π/4)d2hZ×l0-3 (mL/r)                 (5-1)

Where K -- the number of action of each plunger in each working cycle;

D -- plunger diameter, mm;

H -- effective stroke of plunger, mm;

Z -- inombolo yeplunger.

Ku single acting radial piston pump, ngoba inombolo yokusebenza k = 1 futhi i-effective stroke H = 2e (E iyinhlangothi), ifomula yokubala i-displacement iyona

V=(π/4)d2×2e×Z×10-3=(π/2)d2eZ×10-3 (mL/r)       (5-2)

Radiale pistonpomp se verplasingreeks is groot, wat wissel van 0.5 tot 5000 ml / R. die algemeen gebruikte verplasing wissel met die produkstruktuur.

(3) Ngokwesibonelo, ijubane le-pump encane yokuhambisa lingadlula u-10000r / min, ijubane le-pump ephakathi kokuhambisa lingu-3000-5000r / min, kanti ijubane le-pump enkulu yespecification lingadlula futhi u-10000r / min.

(4) I-volumetric efficiency kanye ne-total efficiency ye-efficiency radial piston pump ixhumene nezimo zokusebenza ze-pump. Ngaphansi kwezimo ezibekiwe, i-volume efficiency ye-valve distribution pump ingafinyelela ku-96% ～ 98%, kanti i-total efficiency ingafinyelela ku-85% ～ 88%.

(5) Die Dienstlebensdauer der radialen Kolbenpumpe ist unter den richtigen Bedingungen sehr lang (insbesondere wenn das Arbeitsmedium mit der richtigen Viskosität verwendet wird und genügend Sauberkeit aufrechterhalten wird). Aber allgemein gesprochen ist die radiale Kolbenpumpe nicht so langlebig wie die axiale Kolbenpumpe.

(6) Ngokuhlanganyela negear pump, vane pump kanye ne-screw pump, ukuhamba kwepulsation nokukhala kweplunger pump kukhulu. Ukuhamba kwepulsation kwepiston pump kuyisizathu esiyinhloko sokukhala. Phakathi kwezinhlobo zonke ze-piston pumps, i-valve distribution piston pump inezinga eliphezulu lokukhala.

The number of plunger has a great influence on the flow pulsation. According to the traditional design criteria, the number of plunger is odd, and the more the plunger, the smaller the flow pulsation. Considering the difficulty of structural arrangement, the number of plunger is generally taken as Z = 3, 5, 7, 9, and uniformly distributed along the circumference. However, because the pressure build-up and oil supply process of valve distribution piston pump are related to the rotation phase of transmission shaft, the pressure difference between inside and outside the working cylinder, and the opening and closing characteristics of valve, the above design criteria of odd number of pistons are not important for this kind of pump. For the sake of manufacturing technology and reducing bearing load, many valve distribution pumps use even number plunger.

(7) Iphampu ye-piston enezinga eliphezulu lok pressure kanye nomthamo omkhulu inamandla aphezulu okusebenza kanye nezindleko. Iphampu ye-radial piston inamandla aphansi okusebenza uma iqhathaniswa ne-piston ye-axial ngenxa yokuthi inobukhulu obukhulu be-radial.

(8) Iiparamitha ezisemqoka Z, ububanzi D kunye ne-eccentricity e ziiparamitha ezintathu ezixhomekeke kumntu omnye, ezinxulumene nohlobo lwestructure, ukusebenza, amandla, ubunzima kunye nokusebenza. Xa inani leplunger Z limiselwe lithathela ingqalelo ukunyakaza, ukuhamba kwepulsation kunye nobuchwepheshe besikhumbuzo, ububanzi beplunger D bunokubalwa kwi-plunger number kunye nokunyakaza. Ngokuqhelekileyo, i-eccentricity e inganqakraza ngolu hlobo:

e=md (mm)                        (5-3)

Where m -- coefficient, M = 0.25-0.5, the smaller value is taken when the working pressure is high, otherwise the larger value is taken.

Shiya imininingwane yakho futhi
sizokuthinta.

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