摘要
为解决机械臂启动时异动和液压系统压力超高的问题,对其所有可能影响因素进行逐一分析。通过分析液压系统原理、关节动作对比、液压介质变化计算,指出异常现象是液压系统原理不合理、液压介质物理性质改变等3种因素共同作用的结果。针对以上影响因素,提出选用热膨胀性小的液压介质、增加加热/冷却系统、增加截止阀等完善液压系统,提高机械臂运动的可靠性和安全性。
In order to solve the problems of abnormal movement when the boom is started and pressure increasing in the hydraulic system,all possible influencing factors were analyzed one by one.By analyzing the principle of hydraulic system,the comparison of joint actions and the calculation of hydraulic medium change,it was pointed out that the abnormal phenomenon was the result of three factors,namely unreasonable principle of hydraulic system and change of physical properties of hydraulic medium.In view of the above factors,it was proposed to select hydraulic medium with small thermal expansion,add heating/cooling system and cut-off valve to improve the reliability and safety of mechanical arm movement.
作者
杨华
张中元
王龙
Yang Hua;Zhang Zhongyuan;Wang Long(Shanxi Aerospace Qinghua Equipment Co.,Ltd.,Changzhi,Shanxi 046012,China)
出处
《机电工程技术》
2021年第6期304-306,共3页
Mechanical & Electrical Engineering Technology
关键词
液压
伺服控制
热膨胀
机械臂
hydraulic
servo control
heat expansion
mechanical arm
