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一、前言液压传动是一种先进的传动形式,具有结构紧凑、操纵方便,运动平稳,可以无级变速,易实现自动化及远距离控制等优点,所以得到越来越广泛的采用。随着科学技术的迅速发展,各工业部门机械化、自动化程度日益提高,对液压技术提出了新的要求。液压元件及装置的标准化、微型化、集成化及单元化就是适应这种要求而产生的。为了适应我国自动化机床,加数控机床、自动换刀数控机床、组合机床及自动线发展的需要,我所自一九七三年起与上海液压件一厂共同研制了JK液压集成块系列。通过
I. Introduction Hydraulic transmission is an advanced form of transmission. It has the advantages of compact structure, convenient operation, stable movement, infinitely variable speed, easy automation and long-distance control, so it has been adopted more and more widely. With the rapid development of science and technology, the mechanization and automation of various industrial departments have been increasing day by day, putting new demands on the hydraulic technology. The standardization, miniaturization, integration and unitization of hydraulic components and devices are produced to meet this requirement. In order to meet the needs of our country’s automatic machine tools, CNC machine tools, automatic tool change CNC machine tools, combined machine tools and automatic line development, since 1973, we have developed a series of JK hydraulic manifolds together with Shanghai Hydraulic Components Factory. by