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开式液体静压导轨具有运动精度高 ,摩擦功耗小与导面寿命长的特点。但由于传统节流器性能差 ,节流参数选择不当 ,再加上导轨工作面制造精度不高故这种导轨在实际应用中效果不佳。开式液体静压导轨具有两大特征 ,即 :导轨间隙上浮不受限制与每个油囊承受的载荷范围很大 ,但这两个特征过去常被忽视导致应用效果不够理想 ,本文介绍这种导轨在采用新型可变节流器与选择最佳节流比或最佳供油压力就能保证在大载荷范围内导轨间隙近于不变 ,很有实用价值。应用平 -圆组合导轨可提高工作面制造精度有助于实现导轨间隙近于不变 ,故可大大提高运动精度。
Open hydrostatic guide with high precision movement, small frictional power consumption and long life of the guide surface. However, due to the poor performance of the traditional throttle, the throttle parameter selection is inappropriate, coupled with the low precision of the guide rail face, so the guide rail in effect is not good. Open hydrostatic guide rail has two major characteristics, namely: the rail gap floating unrestricted and each oil balloon to withstand a wide range of load, but these two characteristics were ignored in the past lead to unsatisfactory application results, this article describes this Rail in the use of a new variable throttle and choose the best ratio of the best or the best supply of oil pressure can be guaranteed in a wide range of rail gap near the same, very practical value. The application of flat - round combination guide rail can improve the manufacturing accuracy of the work surface helps to achieve nearly unchanged gap, it can greatly improve the movement accuracy.