试验研究
现代制造工程（ModemManufacturingEngineering）
一种新型液压电梯驱动系统方案
刘忠12，杨能2赵飞刘军军满增光
2016年第12期
（1常熟理工学院机械工程学院，常熟215500；2苏州大学机电工程学院，苏州215021）
摘要：液压电梯因具有自已独特的优势而占据着一定的市场份额，但是其装机功率大、能耗高，故发展受到制约。国内外研究人员着重从节能这一方面来对液压电梯的液压控制部分进行研究。目前，国内液压电梯液压驱动系统几乎都是进口的电梯专用节流阀控调系统，其价格昂贵，增加了液压电梯的成本。比例压力流量复合阀有自身的结构特性，阀自身带有压力补偿器使节流口两端压力保持不变，在控制流量时可以保证不受负载端压力变化的影响从面获得较稳定的流量，而且还可以实现油源压力随负载变化而变化，具有节能的作用。通过对比例压力流量复合阀的分析，设计了基于比例压力流量复合阅的新型液压电梯液压驱动系统，并阐述了该系统的工作原理，对液压电梯的驱动系统设计具有一定的意义。
关键调：比例流量阀；液压电梯；液压驱动系统；节流调速控制
中图分类号：TU857文献标志码：A文章编号：1671—3133(2016)12-0026—05 DOI:10.16731/j.cnki.1671 3133.2016.12.005
Anewtype of hydraulic elevatordrive system Liu Zhong'-2, Yang Neng’,Zhao Fei', Liu Junjun', Man Zengguang
(1 School of Mechanical Engineering,Changshu Institute of Technology,Changshu 215500,Jiangsu, China ;
2 School of Mechanical Engineering,Soochow University,Suzhou 215021,Jiangsu, China)
Abstract : The hydraulic elevator has its own unique advantages to occupy a certain market share. But its installed power,high en ergy consumption restricts the development of hydraulic elevator. Domestic and foreign researchers have also focused on energy saving in this part of the hydraulic elevator hydraulic control part of the research. At present,the domestic hydraulic elevator hy-draulic drive system is almost all of the import of the elevator special throttle valve control and speed control system, its price is expensive,the cost of the hydraulic elevator, Proportional pressure and flow compound valve has its own structural characteristics. The valve itself with a pressure compensator envoys orifice at both ends of the pressure remained constant, in flow control can guarantee the load side pressure changes so as to obtain more stable flow. And it can also realize the oil source pressure change with the load,and has the function of energy saving. A new type of hydraulic elevator hydraulic pressure drive system is designed based on proportional pressure and flow valve, The working principle of the system is described, and the design of the hydraulic elevator is of certain significance.
Key words : proportional flow valve; hydraulie elevator;hydraulie drive system; throttle control
0引言
在大部分阀控式液压电梯上行过程中，一般都采用旁油路节流调速，虽然采用旁油路节流调速的能耗相比于进油路节流调速较低，但是自身仍然存在缺陷，尤其是在液压电梯调速范围较大的系统中，由于此系统无背压会导致执行元件的速度不够平稳且液压泵的压力随负载变化而发生变化，造成液压泵的流
量变化，输出的流量脉动大，而且系统会随着节流阀开口的增大，负载能力有所下降，调速范围与进油路节流调速的调速范围相比较小。进油路节流调速虽然能耗损失较高一些，但是系统具有刚度大、流量调节范围大的特点；而且当电梯启动时进人油缸的油液受到节流阀控制可减少启动时的冲击。
为了解决进油路节流调速液压电梯能耗损失较大的问题，从液压系统本身出发，需要寻找合适的液
*国家自然科学基金研究项目（NSFE51275060）；苏州市科技计划研究项目（SYG201325） 26
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