精密主轴的支承大多用AC或DC电机通过皮带传动。为卸掉皮带张紧力对主轴的影响,常用滚动轴承作为旋转体的卸荷装置,但由于滚动轴承的内外环的振摆仍影响着主轴的回转精度,我们研制了液体静压卸荷装置,它具有回转精度高、刚度大、吸振及寿命长等优点。 图;1所示,即是液体静压卸 Most of the spindle support precision AC or DC motor drive through the belt. In order to remove the influence of the belt tension on the main shaft, a common rolling bearing is used as the unloading device of the rotating body. However, since the slewing of the inner and the outer rings of the rolling bearing still affects the slewing accuracy of the main shaft, a hydrostatic unloading device Rotary with high precision, stiffness, vibration absorption and long life and so on. Figure 1 shows that the static pressure of liquid discharge