液压机非对称泵控输出系统及高负载特性分析  

Analysis of Asymmetric Pump-Controlled Output System and High Load Characteristics of Hydraulic Machine

作　　者：郝欣丽[1] Hao Xinli(School of Numerical Control Technology,Xinxiang Vocational and Technical College,Xinxiang Henan 453002,China)

机构地区：[1]新乡职业技术学院数控技术学院,河南新乡453002

出　　处：《机械管理开发》2025年第1期29-30,33,共3页Mechanical Management and Development

摘　　要：非对称泵控输出系统具有大扭矩传动特点,在液压机等机械设备中大量使用。引入非对称柱塞泵控制,给出了非对称泵在泵控变载输出系统设计。在非对称泵运行过程中,油液压力对定子产生作用向控制柱塞传递,造成变量机构的操纵,需非常大的驱动力。研究结果表明:高负载下,液压缸位移快速响应,流量与压力发生缓慢变化。1~5 s时,液压缸伸出,速度最大值为125 mm/s;5~11 s时,液压缸回缩,速度最大值为15 mm/s。液压泵具有优良的动态性能,串联式柱塞泵能够实现差动液压缸的闭式泵控,可在生产中全面推广应用。Asymmetric pump control output system has the characteristics of high torque transmission,which is used in a large number of hydraulic machines and other mechanical equipment.The introduction of asymmetric piston pump control,gives the asymmetric pump in the pump control variable load output system design.In the asymmetric pump operation process,the oil pressure on the stator effect to the control plunger transfer,resulting in the manipulation of the variable mechanism requires a very large driving force.The results show that:under high load,the hydraulic cylinder displacement responds quickly,and the flow and pressure change slowly.1~5 s,the hydraulic cylinder extends,and the maximum speed is 125 mm/s;5~11 s,the hydraulic cylinder retracts.The hydraulic pump has excellent dynamic performance,and the tandem piston pump can realise the closed pump control of the differential hydraulic cylinder,which can be widely used.

关 键 词：非对称泵控 变载输出系统 特性分析 AMESim平台 

分 类 号：TH137[机械工程—机械制造及自动化]