基于二次调节的挖掘机回转系统研究  

Swing System of Hydraulic Excavator Based on Secondary Regulation

作　　者：颜韵琪 贺元成[2] 孟志明[1] 康帅帅 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000 [2]泸州职业技术学院,四川泸州646000

出　　处：《液压与气动》2014年第7期15-18,21,共5页Chinese Hydraulics & Pneumatics

基　　金：四川省科技计划项目(2013GZX0151);过程装备与控制工程四川省高校重点实验室开放基金(GK201310)

摘　　要：为了回收某公司某型号大型液压挖掘机在回转阶段的制动能量,提出了一种基于二次调节控制的液压回转系统。在恒压网络中,二次调节系统通过PID反馈来控制变量马达,使其迅速、平稳的达到设定转速,这样能调控整个系统功率,而一般容积传动系统主要是通过改变泵的流量来实现。二次调节中蓄能器的作用是回收制动能量,并用于下一次起动加速,提高了工作效率。通过在AMESim软件中仿真的结果表明:回转制动能量回收系统的能量回收效率为20.3%,回收能量再利用效率为87%,系统基本达到节能减排的目的。In order to recover energy during the a hydraulic slewing system based on a secondary rotary phase of the hydraulic excavator in the braking, regulation control. In the constant pressure network, th regulation system can make the variable motor reach the set speed quickly and smoothly we propose e secondary through the motor PID feedback control, which can control the through changing the flow of pump. power of the whole system and the The function of the accumulator in general volume transmission system mainly secondary regulation is to recover bratem is 65.9% and the recycling efficiency of recovered energy is 47.3%, so the system achieves the goal of energy conservation and emissions reduction.

关 键 词：液压挖掘机 回转系统 二次调节 蓄能器 AMESIM 

分 类 号：TH137.7[机械工程—机械制造及自动化]