用悬臀镗杆细镗时产生的振动,现在广泛地采用冲击式消振器来消除,但不能在所有情况下(例如镗杆直径等于或小于25毫米、伸出长度与其直径之比L/D=4时)都产生良好的效果。用改变了形式后的动力消振器结构(见附图)能扩大小直径镗杆的耐振工作区域(到L/D=5)。在镗杆和消振器之间安装橡皮带3。在橡皮带中能量的大量散逸提高了消振器的效力,可以在相当大的频率变化范围内消除振动。 Vibrations when boring boring bars are fine boring are now widely used with impact dampers to eliminate them, but not in all cases (eg boring bar diameter equal to or less than 25 mm, ratio of extension length to diameter L / D = 4) have a good effect. Vibration-resistant working area (to L / D = 5) of a small diameter boring bar can be enlarged with a modified form of dynamic absorber (see attached). Install the rubber band 3 between the boring bar and the vibration absorber. The large amount of energy dissipated in the rubber band increases the effectiveness of the vibration absorber and eliminates vibrations over a wide range of frequency variations.