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文本对 MTS 公司和 SCHENCK 公司所生产的三级伺服阀及作功器作一介绍。指出三级伺服阀在大负荷大流量时有好的动态特性,使它广泛用于各类大吨位动、静试验机中。文中列举各国生产的负荷千吨以上的大型试验机采用三级伺服阀控制回路的实例,说明用三级伺服阀控制系统、解决系统中的动态特性,分开伺服系统油源和工作油源等实际问题。图10幅。表6个,参考文献7种。
The text provides an introduction to the three-stage servo valves and power tools produced by MTS and SCHENCK. It is pointed out that the three-stage servo valve has good dynamic characteristics under large load and large flow rate, making it widely used in various large-tonnage moving and static testing machines. This paper lists the production of thousands of tons load testing machine using three large servo valve control circuit example shows that the use of three servo valve control system to address the dynamic characteristics of the system to separate the servo system oil and working oil and other real problem. Figure 10. Table 6, 7 kinds of references.