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最近我们为5m岩巷全断面掘进机研究设计了一种新的阀——双向节流阀,它具有双向限速的功能,凡是有双向限速要求的液压执行元件的回路上均可使用,如挖掘机、推土机、煤矿用岩石掘进机和半煤岩掘进机等。並可节省能量、减少油泵负载从而减少故障等好处,具有一定范围的推广意义。一、限速要求与双向限速问题在液压系统中,我们经常使用单向节流阀或平衡阀。例如在液压绞车上,为了限制重物
Recently, we designed a new valve - bi-directional throttle valve for 5m rock roadway full-face boring machine, which has the function of bidirectional speed limit. All the hydraulic actuators with bi-directional speed limit can be used on the circuit, Such as excavators, bulldozers, coal rock tunnel boring machines and semi-coal boring machine and so on. And can save energy, reduce the pump load and thus reduce the benefits of failure, with a range of promotion. First, the speed limit requirements and two-way speed limit problem In the hydraulic system, we often use one-way throttle or balance valve. For example on a hydraulic winch, in order to limit the weight