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Izinga lokusebenza le-radial piston pump

创建于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 radiale piston pump, i-presshu ye-valve distribution pump iphakama, ngokujwayelekile ingaphezu kuka-32Mpa, futhi ingafinyelela ku-200MPa kwezinye imikhiqizo; i-presshu ye-axial distribution pump ngokujwayelekile ingaphezu 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.
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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.
For single acting radial piston pump, because the number of action k = 1 and the effective stroke H = 2e (E is eccentricity), the displacement calculation formula is
V=(π/4)d2×2e×Z×10-3=(π/2)d2eZ×10-3 (mL/r)       (5-2)
Radiale kolbenpumpe hat einen großen Verdrängungsbereich von 0,5 bis 5000 ml / R. Die gebräuchliche Verdrängung variiert je nach Produktstruktur.
(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 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) Isebe lempilo ye-radial piston pump ibaluleke kakhulu ngaphansi kwezimo ezifanele (ikakhulukazi uma umkhiqizo osebenzayo onobukhulu obufanele usebenza futhi kugcinwa ukuhlanzeka okwanele). Kodwa ngokujwayelekile, i-radial piston pump ayinelonga njengokuthi i-axial piston pump.
(6) Ngokwe gear 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 nomjikelezo omkhulu inamandla aphezulu okusebenza kanye nezindleko. Iphampu ye-piston ye-radial inamandla aphansi okusebenza uma iqhathaniswa ne-piston ye-axial ngenxa yokuthi inobukhulu obukhulu be-radial.
(8) Iiparamitha eziyisisekelo Z, ububanzi D kanye ne-eccentricity e yizici ezintathu ezixhomekeke komunye nomunye, ezihlobene nohlobo lwesakhiwo, ukusebenza, amandla, ukujula nokusebenza. Uma inombolo ye-plunger Z isinqunywa ibhekelele ukunyakaza, ukuhamba kwepulsation kanye nobuchwepheshe besakhiwo se-pump, ububanzi be-plunger D bungabalwa kusukela enombolweni ye-plunger nasekukhanyeni. Ngokuvamile, i-eccentricity e inganqunywa kanje:
e=md (mm)                        (5-3)
Whe m -- coefficient, M = 0.25-0.5, die kleinere Wert wird genommen, wenn der Arbeitsdruck hoch ist, andernfalls wird der größere Wert genommen.
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sizokuthinta.
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