一、前言在挤压液压机上,既有主梁和挤压筒之类的部件,又有由两个活塞驱动的滑动件(滑块)。为保持滑块的运动精度,可设置称为导块的导轨。这样的滑块用泵直接驱动时,由于条件所限,其运动不可能平稳,既产生前进方向的振动,又产生左右交替倾斜的振动。用单缸驱动的滑块,由于条件所限,也产生高频振动运动,如前文所说的那样,它是一种由于工作液体压缩系数而引起的自振。双缸驱动滑块时,除由这种自 First, the preface In the squeeze hydraulic machine, both the main beam and extrusion cylinder like parts, there are two piston-driven slide (slider). To maintain the accuracy of the slider movement, a guide rail called a guide block can be set. When such a slider is directly driven by a pump, its movement may not be stable due to the limited conditions, and both the vibration in the forward direction and the vibration in which the left and right are alternately inclined may occur. A single-cylinder driven slider, due to limited conditions, also produces high-frequency vibratory motion, as mentioned above, which is a self-vibration due to the compressibility of the working fluid. When driving the slider in double cylinder, except by this kind of self