\nLes pompes \u00e0 piston ont une pression nominale \u00e9lev\u00e9e pour r\u00e9pondre aux besoins des syst\u00e8mes de lubrification \u00e0 haute pression et \u00e0 haut d\u00e9bit. Cette propri\u00e9t\u00e9 conf\u00e8re aux pompes \u00e0 piston un avantage significatif dans les syst\u00e8mes de lubrification o\u00f9 une alimentation en huile stable et continue est requise.
\nLongue dur\u00e9e de vie et haute efficacit\u00e9 :
\nLa dur\u00e9e de vie des roulements de la pompe \u00e0 piston est longue, le rendement total de la pompe peut atteindre 90% et plus, et le rendement volum\u00e9trique peut atteindre plus de 95%. Cette caract\u00e9ristique de haute performance et de longue dur\u00e9e de vie r\u00e9duit les co\u00fbts de maintenance et augmente la fiabilit\u00e9 du fonctionnement de l'\u00e9quipement.
\nForte adaptabilit\u00e9 aux m\u00e9dias :
\nLes pompes \u00e0 piston peuvent \u00eatre utilis\u00e9es avec une grande vari\u00e9t\u00e9 de fluides de fonctionnement, notamment l'huile min\u00e9rale, les \u00e9mulsions et autres fluides synth\u00e9tiques. Cette large gamme d'adaptabilit\u00e9 des fluides permet \u00e0 la pompe \u00e0 piston de s'adapter \u00e0 diff\u00e9rentes conditions et exigences de lubrification.
\nParam\u00e8tres de r\u00e9glage \u00e9lev\u00e9s :
\nLa pompe \u00e0 piston dispose d'une large plage de pression de travail et de cylindr\u00e9e r\u00e9glables, ce qui permet de r\u00e9pondre aux besoins de lubrification dans diff\u00e9rentes conditions de travail. Par exemple, des pressions de travail allant jusqu'\u00e0 70 MPa et plus, et des cylindr\u00e9es allant de quelques millilitres par tour \u00e0 1000 ml\/r et plus, permettent de contr\u00f4ler avec pr\u00e9cision le syst\u00e8me de lubrification.
\nCommodit\u00e9 variable :
\nLes pompes \u00e0 piston \u00e0 cylindr\u00e9e variable permettent de r\u00e9guler la puissance et la vitesse infiniment variable dans les syst\u00e8mes hydrauliques, offrant ainsi une flexibilit\u00e9 importante pour les transmissions hydrauliques. Dans les syst\u00e8mes de lubrification, cette fonction permet d'ajuster l'alimentation en lubrifiant en temps r\u00e9el en fonction de l'\u00e9tat de fonctionnement de l'\u00e9quipement.<\/p>\n
![\"Pompe](\"https:\/\/www.jinpinlub.com\/wp-content\/uploads\/2017\/02\/Plunger-lubrication-pump.jpg\")
Le principe de fonctionnement de la pompe \u00e0 piston.<\/p>\n
Le principe de fonctionnement de la pompe \u00e0 piston repose principalement sur le mouvement alternatif du piston dans le cylindre pour r\u00e9aliser l'aspiration et le refoulement du liquide. Le processus sp\u00e9cifique est le suivant :
\nProcessus d'aspiration d'huile :
\nLorsque le piston se d\u00e9place vers la droite (ou lorsqu'il est retir\u00e9), le volume de la chambre de travail d'\u00e9tanch\u00e9it\u00e9 dans le bloc-cylindres augmente et la pression diminue. \u00c0 ce stade, la soupape d'admission s'ouvre et aspire l'huile hydraulique de la zone basse pression dans la chambre de travail.
\nProcessus de pressage de l'huile :
\nLorsque le piston se d\u00e9place vers la gauche (ou pousse vers l'int\u00e9rieur), le volume de la chambre de travail d'\u00e9tanch\u00e9it\u00e9 diminue et la pression augmente. Lorsque la pression est sup\u00e9rieure \u00e0 la pression de sortie, la soupape de sortie s'ouvre pour \u00e9vacuer l'huile hydraulique de la zone haute pression.
\nMouvement alternatif :
\nLe piston effectue un mouvement alternatif sous l'action du ressort ou de l'arbre de transmission et r\u00e9p\u00e8te en continu le processus d'aspiration et de pressage d'huile ci-dessus, de mani\u00e8re \u00e0 r\u00e9aliser l'alimentation continue en huile hydraulique.
\nR\u00e9glage variable :
\nCertaines pompes \u00e0 piston sont \u00e9galement \u00e9quip\u00e9es d'un m\u00e9canisme variable qui r\u00e9gule le d\u00e9placement de la pompe en modifiant l'inclinaison du plateau oscillant. Ce r\u00e9glage permet \u00e0 la pompe \u00e0 piston d'ajuster de mani\u00e8re flexible l'alimentation en huile de lubrification en fonction des conditions de fonctionnement r\u00e9elles.<\/p>","protected":false},"excerpt":{"rendered":"
Why are the lubrication pumps usually piston pumps? High pressure and high flow demand: Piston pumps have a high pressure rating to meet the needs of high-pressure, high-flow lubrication systems. This property gives piston pumps a significant advantage in lubrication systems where a stable, continuous oil supply is required. Long life and high efficiency: The 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