F-0412 半浮上すべり送りねじの基礎研究(S37-3 ねじ(3))(S37 機械要素の設計・製造・応用技術)

概要

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Though Sliding leadscrews have advantage of high stiffness and vibration damping property, they have disadvantage of large friction loss. This study proposes a method of improving the frictional property by supplying compressed air, the pressure of which is limited to the range that the screw shaft and the nut keep contact, between the thread flanks so as to support a part of axial load. This report explains the basic experiments performed to obtain fundamental data for development of the "half-floating leadscrew". The contact condition between the screw shaft and the nut is simplified into the contact between end surfaces of a couple of cylinders. Some experimental results are shown on the frictional property under the condition that the air pressure is supplied between the cylinders.
一般社団法人日本機械学会の論文
2001-08-22