液压恒压网络系统中液压变压器的发展历程

Development of hydraulic transformer in constant pressure rail system

介绍了液压变压器的产生背景,综述了传统型和新型液压变压器的发展历程,对2种液压变压器的工作原理进行了对比分析,推导出传统型和新型液压变压器变压比的表达式,并得出传统型液压变压器的变压比与2个组成元件的排量成反比规律变化,而新型液压变压器则是通过控制配流盘的摆角来控制流入和流出液压变压器的流量来实现变压的结论.归纳总结了液压变压器的特性,列举了液压变压器在工程中的应用实例,指出了目前液压变压器研究中尚未完善之处,并对液压变压器的发展前景进行了展望.

The background of the hydraulic transformer is introduced, and the developing process of the traditional type and new type of hydraulic transformer are summarized. The working principles of the two types of hydraulic transformer are also compared and the expressions of the two types of the hydraulic transformer are deduced. It is concluded that the pressure ratio of the traditional hydraulic transformer varies with the displacement of the two components df the traditional hydraulic transformer and the pressure ratio of the new type of hydraulic transformer changes with the control angle of the valve plate which controls the input and output flow of the hydraulic transformer. This research also provides the characters of the hydraulic transformer and enumerates its applications. Finally some aspects not yet perfect in the hydraulic transformer study are pointed out, and the development of the hydraulic transformer in the future is prospected.