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液压传动目前已广泛得到应用。但是,目前使用的油缸,大多靠橡胶圈密封,对缸筒加工精度、光洁度要求都很高,一般配合间隙小于0.05毫米,光洁度在▽10以上,如果没有镗缸,磨缸设备,就很难达到精度、光洁度要求。尤其是细长的油缸,加工就更加困难,往往限制了液压传动的应用。几年来,我们在实践中,利用自行车打气筒的原理,设计制造了一种简易的液压油缸,曾先后应用于
Hydraulic transmission is now widely used. However, most of the cylinders currently used are sealed by rubber rings, and the machining accuracy and smoothness requirements of the cylinder tubes are very high. Generally, the clearances are less than 0.05 mm and the finish is above ▽ 10. If there is no boring and grinding equipment, it is difficult Achieve precision, finish requirements. Slender cylinders, in particular, are more difficult to process and often limit the application of hydraulic drives. In recent years, we in practice, the use of bicycle pump principle, design and manufacture of a simple hydraulic cylinder, has been used in