派克叶片泵选型参数,美国丹尼逊叶片泵
• Optimum adjustment to cycle requirements – higher precision and dynamics
• Free Parker DriveCreator software – enables optimum dimensioning of all components
2.叶片也有倾角,但倾斜方向正*与定量叶片泵相反,这是因为变量叶片泵的叶片上下压力是平衡的,叶片在吸油区向外运动主要依靠其旋转时的离心惯性作用.根据力学分析,这样的倾斜方向更有利于叶片在离心惯性作用下向外伸出。
3.变量叶片泵结构复杂,轮廓尺寸大,相对运动的机件多,泄漏较大,轴上承受不平衡的径向液压力,噪声较大,容积效率和机械效率都没有定量叶片泵*;但是,它能按负载压力自动调节流量,在功率使用上较为合理,可减少油液发热
叶片泵中,当叶片处于压油区时,叶片底部通压力油,当叶片处于吸油区时,叶片底部通吸油腔,这样,叶片的顶部和底部的液压力基本平衡,这就避免了定量叶片泵在吸油区定子内表面严重磨损的问题.如果在吸油腔叶片底部仍通压力油,叶片顶部就会给定子内表面以较大的摩擦力,以致减弱了压力反馈的作用。
我们的传动系统串联泵允许使用叶片泵技术与其他泵的各种组合,符合SAE A,SAE B或SAE C后驱动器标准。
特征和优点:
• 优化的能量消耗:机械和容积效率始终为94%,减少热量产生,并且在全压下允许速度降低到400 RPM。
法兰尺寸SAE B 2 螺栓,SAE C 2 螺栓
间歇出口压力 1 (bar)90 至2 75
持续出口压力 1 (bar)75 至 240
额定速度 (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
派克叶片泵选型参数,美国丹尼逊叶片泵