原裝正品力士樂葉片泵R900534508 PV7-1A/25-45RE01MC0-08

武漢百士自動化設(shè)備有限公司主營銷售產(chǎn)品，產(chǎn)品實(shí)拍,，原裝正品,，客戶買的安心，用的放心,。常用產(chǎn)品

現(xiàn)貨供應(yīng),，歡迎新老客戶詢價采購！

產(chǎn)品簡介：

力士樂REXROTH可調(diào)節(jié)的先導(dǎo)式葉片泵

PV7...C/D/N/W

規(guī)格 14 … 150

組件系列 1X

大工作壓力 160 bar

大流量 270 l/min

可變排量

低工作噪音

流體動力潤滑的滑動軸承延長了軸承的使用壽命

壓力和流量的閉環(huán)控制可能性

低滯后

極低的開機(jī)控制時間和停機(jī)控制時間

符合 ISO 3019-2 的緊固件尺寸

符合 ISO 6162-1 和 ISO 228-1 的連接尺寸

適用于 HLP、HETG,、HEES 和 HFD-U 液壓油

PV7 系列標(biāo)準(zhǔn)單泵可相互組合成組合泵,，也可與內(nèi)齒輪泵、外齒輪泵,、軸向柱塞泵和徑向柱塞泵組合,。

用于連續(xù)運(yùn)行中對容積流量的要求可變、保壓功能百分比較高的驅(qū)動器,，如：

機(jī)床

靜液壓軸承

恒壓系統(tǒng)

PV7... 型號葉片泵的可調(diào)節(jié)排量有助于實(shí)現(xiàn)低脈動流量并可在下行控制過程中達(dá)到非常高的重復(fù)精度和低壓力峰值,，這些均得益

于其特殊設(shè)計。通過調(diào)整高度調(diào)節(jié)螺釘實(shí)現(xiàn)噪音優(yōu)化,，從而降低工作噪音,。流體動力潤滑的滑動軸承確保長久使用壽命。排液器

的軸向補(bǔ)償可實(shí)現(xiàn)佳的容積效率,。

功能,，橫截面

型號 PV7 的液壓泵是具有可變排量的葉片泵。

基本上由殼體,、轉(zhuǎn)子,、葉片、定子環(huán),、壓力控制器和容量調(diào)節(jié)螺釘組成,。

圓形定子環(huán) 由小型往復(fù)式控制活塞和大型往復(fù)式控制活塞支撐。環(huán)的第三個支撐點(diǎn)是高度調(diào)節(jié)螺釘,。

驅(qū)動轉(zhuǎn)子在定子環(huán) 中旋轉(zhuǎn),。在離心力的作用下，轉(zhuǎn)子 中的導(dǎo)向葉片 貼緊定子環(huán) 的內(nèi)滑動面,。

吸油和排油過程

運(yùn)輸液壓油的必要元件由葉片、轉(zhuǎn)子,、定子環(huán) 和控制板組成,。

為保護(hù)調(diào)試過程中的泵功能，定子環(huán) 由位于大驅(qū)動柱塞后的彈簧支持,，保持其偏心位置（排液器位置）,。

轉(zhuǎn)子 旋轉(zhuǎn)時元件容積增加，且元件通過吸油通道填充液壓油,。達(dá)到大元件容積后,，元件將與吸油側(cè)分離。如果轉(zhuǎn)子 進(jìn)一步旋轉(zhuǎn),，

則會建立與壓力側(cè)的連接,，元件將會減少液壓油并通過壓力通道將其壓入系統(tǒng)中。

調(diào)節(jié)

隨著壓力在系統(tǒng)中積聚，小型控制柱塞的后側(cè)始終通過通道向系統(tǒng)壓力加壓,。

在排放位置,，大型控制柱塞的后側(cè)也通過控制閥芯中的鉆孔向系統(tǒng)壓力加壓。具有較大面積的控制活塞將定子環(huán) 保持在其偏心

位置,。

泵以低于壓力控制器上設(shè)定的零行程壓力的壓力排出液壓油,。

控制閥芯由彈簧保持在某一位置。

下行控制

如果產(chǎn)生自產(chǎn)品壓力 x 面積的力 FP 超過了彈簧的反作用力 FF,，調(diào)節(jié)器閥芯則會向彈簧偏移,。因此，位于大驅(qū)動柱塞后的腔體

將與油箱連接,，從而進(jìn)行卸載,。

連續(xù)受到系統(tǒng)壓力作用而被加壓的小驅(qū)動柱塞會將定子環(huán) 移至幾乎接近中心位置。泵保持壓力不變,，流量降至零且泄漏被取代,。

液壓油的功率損耗和熱量即可保持為小。

特性曲線 qV-p 保持垂直,，且在設(shè)置不同壓力值時平行移動,。

行程內(nèi)控制

當(dāng)系統(tǒng)中壓力降至所設(shè)零行程壓力以下時，彈簧會將控制閥芯推回其原位置,。

再次對大控制活塞進(jìn)行加壓,，并將定子環(huán) 移至偏心位置。泵再次開始排油,。

力士樂REXROTH可調(diào)葉片泵,，先導(dǎo)操縱PV7...C/D/N/W

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