力士樂液壓泵A4VSO71DR 10R-PPB13N00

力士樂液壓泵A4VSO71DR 10R-PPB13N00

聯(lián)系人：黃經(jīng)理

電話：0592-5325131

手機：15359881496

傳真：0592-5325131   

Q Q： 632512028

地址：福建省廈門市思明區(qū)嘉禾路337號中關(guān)委大廈1508室

福建速凌機械設(shè)備有限公司于2004年成立在廈門，公司有專門渠道從事德國、美國及歐洲的各類工業(yè)產(chǎn)品、工控自動化及各類氣動元件備品備件經(jīng)銷，特別是廠家平時難于購買到的特shu設(shè)備產(chǎn)品。

常用液壓泵的種類：

1、按流量是否可調(diào)節(jié)可分為：變量泵和定量泵。輸出流量可以根據(jù)需要來調(diào)節(jié)的稱為變量泵，流量不能調(diào)節(jié)的稱為定量泵。

2、按液壓系統(tǒng)中常用的泵結(jié)構(gòu)分為：齒輪泵、葉片泵和柱塞泵3種。

齒輪泵：體積較小，結(jié)構(gòu)較簡單，對油的清潔度要求不嚴，價格較便宜；但泵軸受不平衡力，磨損嚴重，泄漏較大。

0510225006力士樂齒輪泵

齒輪泵按齒輪嚙合形式分：

(l)外嚙合式;(2)內(nèi)嚙合式。

外嚙合齒輪泵的優(yōu)點是結(jié)構(gòu)簡單、尺寸小、重量輕、制造維護方便、價格低廉、工作可靠、自吸能力強、對油液污染不敏感等。它的不足是齒輪承受不平衡的徑向液壓力，軸承磨損嚴重，泄漏量大。工作壓力的提高受到徑向液壓力和容積效率的限制;流量脈動大，噪聲高。

內(nèi)嚙合齒輪泵結(jié)構(gòu)緊湊、尺寸小、重量輕。由于齒輪同向旋轉(zhuǎn)，齒面相對滑動速度小、磨損輕微、使用壽命長、流量脈動遠比外嚙合齒輪泵小，因而噪聲比較小。內(nèi)嚙合齒輪泵允許使用較高的轉(zhuǎn)速，可獲得較高的容積效率。

葉片泵：

分為雙作用葉片泵和單作用葉片泵。這種泵流量均勻、運轉(zhuǎn)平穩(wěn)、噪音小、作壓力和容積效率比齒輪泵高、結(jié)構(gòu)比齒輪泵復(fù)雜。

柱塞泵：容積效率高、泄漏小、可在高壓下工作、大多用於大功率液壓系統(tǒng)；但結(jié)構(gòu)復(fù)雜，材料和加工精度要求高、價格貴、對油的清潔度要求高。

一般在齒輪泵和葉片泵不能滿足要求時才用柱塞泵。還有一些其他形式的液壓泵，如螺桿泵等，但應(yīng)用不如上述3種普遍。 

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