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随着机床加工精度的提高,机床设计者对工作循环为快速前进、工作进给、死挡铁停留或不停留再快速退回的机床液压系统中的调速环节,提出最小稳定流量降到0.02L/min,并要求在Qmin=0.02L/min时,油温变化对流量变化率的影响小于10%。为此,研制了φ6、φ10、φ16三个通径的叠加式电动单向调速阀.文章介绍了这种阀的结构、特点、工作原理、主要性能及连接尺寸等.图4幅,表2个.
With the improvement of machine tool machining accuracy, the machine tool designers to the work cycle is fast forward, work feed, dead stop or stop and then quickly return the speed of the machine hydraulic system, put forward the minimum steady flow down to 0.02L / min, and requires Qmin = 0.02L / min, the change of oil temperature on the rate of change of flow less than 10%. For this reason, the superposition type electric one-way speed regulating valve with three diameters of φ6, φ10 and φ16 has been developed.The structure, characteristics, working principle, main performance and connecting dimensions of this valve are introduced in this article. 2.