派克葉片泵選型參數(shù),美國丹尼遜葉片泵
? Optimum adjustment to cycle requirements – higher precision and dynamics
? Free Parker DriveCreator software – enables optimum dimensioning of all components
2.葉片也有傾角,但傾斜方向正*與定量葉片泵相反,這是因為變量葉片泵的葉片上下壓力是平衡的,葉片在吸油區(qū)向外運動主要依靠其旋轉(zhuǎn)時的離心慣性作用.根據(jù)力學(xué)分析,這樣的傾斜方向更有利于葉片在離心慣性作用下向外伸出。

3.變量葉片泵結(jié)構(gòu)復(fù)雜,輪廓尺寸大,相對運動的機件多,泄漏較大,軸上承受不平衡的徑向液壓力,噪聲較大,容積效率和機械效率都沒有定量葉片泵*;但是,它能按負載壓力自動調(diào)節(jié)流量,在功率使用上較為合理,可減少油液發(fā)熱
葉片泵中,當(dāng)葉片處于壓油區(qū)時,葉片底部通壓力油,當(dāng)葉片處于吸油區(qū)時,葉片底部通吸油腔,這樣,葉片的頂部和底部的液壓力基本平衡,這就避免了定量葉片泵在吸油區(qū)定子內(nèi)表面嚴重磨損的問題.如果在吸油腔葉片底部仍通壓力油,葉片頂部就會給定子內(nèi)表面以較大的摩擦力,以致減弱了壓力反饋的作用。
我們的傳動系統(tǒng)串聯(lián)泵允許使用葉片泵技術(shù)與其他泵的各種組合，符合SAE A，SAE B或SAE C后驅(qū)動器標準。
特征和優(yōu)點：
? 優(yōu)化的能量消耗：機械和容積效率始終為94%，減少熱量產(chǎn)生，并且在全壓下允許速度降低到400 RPM。

法蘭尺寸SAE B 2 螺栓，SAE C 2 螺栓
間歇出口壓力 1 (bar)90 至2 75
持續(xù)出口壓力 1 (bar)75 至 240
額定速度 (RPM)2000 至 2800
Drive Controlled Pumps essentially consist of three components: an AC drive unit (frequency controller and electronics), an asynchronous or synchronous motor, as well as a hydraulic pump. The pump can be either a vane pump – in single or multiple design – or a variable displacement axial piston pump. Drive Controlled Pumps enable the central, regulated hydraulic supply of all drives. Thus they provide the exact power that is required in the cycle at all times.
Features/benefits:
? Less motor and cooling power required – ensures significant energy savings
? Speed reduction at partial load – reduces noise emissions, increases component lifetime
? Smaller components with higher energy density – reduces investment costs

派克葉片泵選型參數(shù),美國丹尼遜葉片泵