力士樂變量柱塞泵一級代理                                                                                                            力士樂變量柱塞泵是往復(fù)泵的一種，屬于體積泵，在其工作時。它的柱塞靠泵軸的偏心轉(zhuǎn)動驅(qū)動，往復(fù)運動，其吸入和排出閥都是單向閥。當(dāng)柱塞外拉時，工作室內(nèi)壓力降低，出口閥關(guān)閉，低于進口壓力時，進口閥打開，液體進入；柱塞內(nèi)推時，工作室壓力升高，進口閥關(guān)閉，高于出口壓力時，出口閥打開，液體排出。
        當(dāng)傳動軸帶動缸體旋轉(zhuǎn)時，斜盤將柱塞從缸體中拉出或推回，完成吸排油過程。柱塞與缸孔組成的工作容腔中的油液通過配油盤分別與泵的吸、排油腔相通。變量機構(gòu)用來改變斜盤的傾角，通過調(diào)節(jié)斜盤的傾角可改變泵的排量。                                                                                                     力士樂變量柱塞泵A4VG系列特點：
1、斜盤式軸向柱塞變量泵，用于閉式回路靜液壓傳動；
2、流量與驅(qū)動轉(zhuǎn)速及排量成正比并可無級變量；
3、流量隨斜盤擺角從零增加到大值；
4、使斜盤擺過中位可以平穩(wěn)改變液流流動方向；
5、易與各種控制和調(diào)節(jié)系統(tǒng)匹配的多種變量方式；
6、泵在高壓油側(cè)配備兩個溢流閥來保護靜液壓傳動（泵和馬達(dá)）免于超載；
7、高壓溢流閥同時也具有補油閥的功能；
8、內(nèi)置輔助泵用作補油泵和控制泵；
9、zui高補油壓力由一個內(nèi)置補油溢流閥來限制；
10、全系列帶有內(nèi)置壓力切斷閥。                                                                              A10VSO71DFR1/32R-VPB12N00
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