螺旋钻机回转液压系统冲击控制特性分析  

The Research for Impact Characteristics of Rotary System on Auger Driller

作　　者：娄磊 吴万荣[2] 倪寿勇 栾云广 许东 LOU Lei;WU Wan-rong;NI Shou-yong;LUAN Yun-guang;XU Dong(School of Mechanical Engineering, Nanjing Institute of Industrial Technology, Nanjing, Jiangsu 210023;Mechanical and Electrical Engineering, Central South University, Changsha ,Hunan 410083;Zhengzhou Wandong Intelligent Technology Co. , Ltd. , Zhengzhou, Henan 450000)

机构地区：[1]南京工业职业技术学院机械工程学院,江苏南京210023 [2]中南大学机电工程学院,湖南长沙410083 [3]郑州宛东智能科技有限公司,河南郑州450000

出　　处：《液压与气动》2020年第6期37-42,共6页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51774340);南京工业职业技术学院人才引进项目(901050617YK102)。

摘　　要：螺旋钻机回转系统在换向过程中会产生较大的冲击与振动。为了降低螺旋钻机回转系统在换向时的冲击,采取减小换向瞬间节流阀芯开口面积的方法,推导了单节、双节U形节流阀芯不同位移时阀口的通流面积公式。加工了单节、双节U形节流阀芯,并将其应用于螺旋钻机的回转冲击试验。实验结果表明,采用双节U形节流阀芯,可以有效减小回转马达换向时进油腔的最高冲击压力和压力波动幅值,使螺旋钻机回转换向过程更平稳。The rotary system of auger driller usually has great impact and vibration when the valve changes.In order to reduce the impact and vibration,The method of reducing the opening area of the throttle valve is adopted,The precise function expression of the flow area for the single and double U-shape notch orifice at different displacements are introduced.The single and double U-shaped throttle valve are processed and applied to the rotary system.The experimental results show that the maximum impact pressure and the amplitude of the pressure fluctuation are reduced when the double U-shape notch orifice is used.

关 键 词：螺旋钻机 回转系统 冲击振动 冲击压力 

分 类 号：TH137[机械工程—机械制造及自动化]