PV7-17/10-14RE01MC0-16 REXROTH葉片泵;液壓泵原理是為液壓傳動提供加壓液體的一種液壓元件,是泵的一種。它的功能是把動力機(如電動機和內(nèi)燃機等)的機械能轉(zhuǎn)換成液體的壓力能。圖中為單柱塞泵的工作原理。凸輪由電動機帶動旋轉(zhuǎn)。當(dāng)凸輪推動柱塞向上運動時,柱塞和缸體形成的密封體積減小,油液從密封體積中擠出,經(jīng)單向閥排到需要的地方去。當(dāng)凸輪旋轉(zhuǎn)至曲線的下降部位時,彈簧迫使柱塞向下,形成一定真空度,油 箱中的油液在大氣壓力的作用下進入密封容積。凸 輪使柱塞不斷地升降,密封容積周期性地減小和增 大,泵就不斷吸油和排油。
型號 PV7 的液壓泵是變量葉片泵。
主要由泵體、轉(zhuǎn)子、葉片、定子環(huán)、壓力控制器和調(diào)節(jié)螺栓組成。圓形的定子環(huán)夾持在小調(diào)節(jié)活塞和大調(diào)節(jié)活塞之間。此環(huán)的第三個接觸點是高度調(diào)節(jié)螺栓。被驅(qū)動的轉(zhuǎn)子在定子環(huán)內(nèi)轉(zhuǎn)動。轉(zhuǎn)子槽內(nèi)的葉片由于離心力的作用壓在定子環(huán)上。
力士樂REXROTH葉片泵吸油和排油過程
用來傳遞油液的腔由葉片、轉(zhuǎn)子、定子環(huán)和配油盤形成。
為了在投入使用時確保泵的運行功能,定子環(huán)由大調(diào)節(jié)活塞后面的彈簧壓在其偏心位置 (排油位置)。
當(dāng)轉(zhuǎn)子轉(zhuǎn)動時,油腔的容積增大,并且通過吸油通道吸油。當(dāng)油腔達(dá)到容積時,它脫離吸油側(cè)。轉(zhuǎn)子繼續(xù)轉(zhuǎn)動,此腔和壓油側(cè)接通,并使其容積減小,通過壓油通道壓油到系統(tǒng)。
PV7-17/10-14RE01MC0-16 REXROTH葉片泵
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R PV7-1X/10-14RE01MC0-16LIM.15LT1450G.
R PV7-1X/10-14RE01MC0-16LIM.16LT/MIN
R PV7-1X/10-14RE01MC0-16+ZFS11/22,5R213
R PV7-1X/10-14RE01MC0-16+ZFS11/8R213
R PV7-1X/10-14RE01MC0-16-A184
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PV7-17/10-14RE01MC0-16 REXROTH葉片泵