论文部分内容阅读
流体润滑状态可以分为动力润滑与静力润滑两种方式,与此相应分为动压轴承与静压轴承。动力润滑利用轴颈(或轴承)的旋转自己产生能支承外载荷的油膜压力。静压轴承利用外部的泵油装置给流体加压形成油膜压力,因此它与速度无关,但增加一套泵油装置。最近,为了充分发挥两种润滑方式的特点,把动力与静力的润滑方式结合于一体,出现了动静压轴承。严格地说,任何静压轴承只要轴颈(或轴承)是旋转的,必定会有动压效应,因此,轴
Fluid lubrication state can be divided into two kinds of dynamic lubrication and static lubrication, and correspondingly divided into hydrodynamic bearings and hydrostatic bearings. Power lubrication utilizes the rotation of the journal (or bearing) itself to generate oil film pressure that can support external loads. Hydrostatic bearings utilize an external pumping unit to pressurize the fluid to form oil film pressure, so it has nothing to do with speed but with an additional pumping unit. Recently, in order to give full play to the characteristics of the two lubrication methods, the combination of dynamic and static lubrication, there have been static and dynamic pressure bearings. Strictly speaking, any hydrostatic bearing as long as the journal (or bearing) is rotating, there must be dynamic pressure effect, so the shaft