挖掘机回转接头耐久性全自动试验系统的研究  

Study on Full Automatic Durability Test System of Excavator Rotary Joint

作　　者：王立杰[1] 宋飚[1] 陈惠明[1] 何斌辉[1] 王芳[1] 陈飞[1] 刘彩玲[2] 

机构地区：[1]南京林业大学机械电子工程学院,江苏南京210037 [2]中国重型机械研究院股份公司,陕西西安710032

出　　处：《机床与液压》2016年第1期80-83,共4页Machine Tool & Hydraulics

基　　金：江苏省"六大人才高峰"项目(第七批次);南京林业大学创新基金资助项目(163040016)

摘　　要：为了对回转接头进行耐久性测试,拟定了耐久性全自动试验系统构成方案。耐久性试验系统液压加载部分采用了双作用自动增压缸,回路工作压力可达42 MPa,由伺服电机经行星减速器降速后带动回转接头的回转轴与壳体相对转动,实现了转速、转向及转角的自动调节,结构紧凑、体积小、运转平稳;通过PLC控制电磁阀的得失电,控制伺服电机的转速、转向及转角,由PC机实时显示采集到的油温、油液流量、油液压力、回转接头的驱动转矩与转速数据,生成压力、流量、油温变化曲线,从而在国内首次实现了回转接头性能参数的自动检测、实时显示。In order to test the durability of rotary joints,a constitution scheme of the full automatic durability test system was studied out. By using automatic double-acting pressurized cylinders at a hydraulic loading section of the test system,the circuit working pressure was up to 42 MPa. A servo motor was decelerated by a planetary reducer to drive the rotary shaft of rotary joint and the rotation of the case relatively. Automatically adjusting the speed of rotary joint,steering and angle were implemented,with the benefits of a compact structure,small volume and smooth operation. The gain and loss of electricity in electromagnetic vale,rotate speed of the servo motor,steering and angle were controlled by the program logic controller( PLC). The data of oil temperature,flow,pressure,driven torque and speed of the rotary joint were collected and displayed on a computer,allowing for the generation of curves of changs in pressure,flow and temperature. Thereby it is the first time in our country where automatic detection of the rotary joint performance parameters and real-time display has been achieved.

关 键 词：回转接头 耐久性试验 液压 驱动 PLC 

分 类 号：TH137[机械工程—机械制造及自动化]