铁钻工平行四边形伸展机构动力学特性分析  

Analysis on the Dynamic Characteristics of the Parallelogram Stretching Mechanism of Iron Roughneck

作　　者：谢圣华 王清岩[1,2] 王战涛 任杰 

机构地区：[1]吉林大学建设工程学院,吉林长春130026 [2]国土资源部复杂条件钻采技术重点实验室,吉林长春130026

出　　处：《机械设计与制造》2017年第11期17-21,共5页Machinery Design & Manufacture

基　　金：国家深部探测技术与实验研究专项资助项目(SinoProbe-09-05)

摘　　要：铁钻工在伸展运动过程中,钳体运动的快速性、稳定性和定位精度取决于伸展机构的原理与结构。与伸展动作相关的驱动部件的输出力大小与该机构的动力学过程密切相关。分析了2种不同的伸展机构,并对各种伸展机构的动力学特性进行了计算。采用AMESim软件建立了伸展机构仿真模型,通过分析钳体的位移、速度和加速度曲线以及伸展油缸和升降油缸的受力曲线,将各伸展机构的动力学仿真过程进行对比,结果表明:所研究的伸展机构均可在规定的时间内完成伸展运动,但各有其优势和不足;伸展油缸倾斜安装能使伸展机构更快地跟踪阶跃输入信号;当输入斜坡信号时,伸展油缸竖直安装比伸展油缸倾斜安装可使伸展机构获得更好的工作特性。In the stretching process of iron roughneck, the rapidity, the stability and the positioning accuracy of the movement of the clamp are largely depend on the working principle and structure of the stretching mechanism The magnitude of the output force of the driving unit associated with the stretching movement is closely related to the dynamic process. Two different stretching mechanisms are analyzed, and the dynamic characteristics of the stretching mechanisms are calculated. The simulation model of stretching mechanisms is established on AMESim software. By analyzing the displacement, velocity and acceleration curves of the clamp, and the load curves of the stretching cylinder and lifting cylinder, the dynamic simulation processes of each stretching mechanism ore compared. The simulation results show that the stre＇tching mechanisms analyzed can complete the stretching movement within the given time, but each has its advantages and disadvantages; the stretching mechanism with inclined installed stretching cylinder can track the step input signal more quickly; when the ramp signal is input, the stretching mechanism with vertically installed stretching cylinder can achieve better working characteristics.

关 键 词：铁钻工 伸展机构 动力学特性 仿真分析 

分 类 号：TH16[机械工程—机械制造及自动化] TE928[石油与天然气工程—石油机械设备]