制动特性对修井机制动性能关系的影响  

Influence of Braking Characteristics on Brake Performance of Workover Rig

作　　者：李壮 綦耀光[1] 张芬娜[1] 贾文强 LI Zhuang;QI Yao-guang;ZHANG Fen-na;JIA Wen-qiang(Department of Mechanical&Electrical Engineering,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)机电工程学院,青岛266580

出　　处：《科学技术与工程》2018年第30期166-172,共7页Science Technology and Engineering

基　　金：国家自然科学基金面上项目(51174224);国家油气科技重大专项(2016ZX05042003-001)资助

摘　　要：游车制动产生的动载荷是造成修井机井架振动冲击甚至过载失效的根源,针对制动特性与制动性能关系的研究有待深入。目前对修井机制动性能的研究多为基于单个零部件的摩擦分析,难以完全满足制动系统性能优化、评价的需要。以油田小修作业机制动系统为研究对象,基于刚体动力学理论研究不同制动特性对整机制动性能的影响,利用正交试验法分析不同工况下制动参数与制动性能的关系。研究发现:采用正矢制动特性时游车大钩制动加速度曲线优化明显,制动力矩增长率及最大制动力矩是影响制动性能的关键因素,因此正常制动力矩增长率控制在2 000～3 000 N·m·s^(-1),最大制动力矩取15～20 k N·m时,能满足现场制动时间与效率的最优解。The dynamic load of the car brake is the root cause of the vibration impact and even the overload failure of the derrick.The study on the relationship between braking characteristics and its performance needs to be further studied.At present,the research on the braking performance of workover rig is mostly based on the friction analysis of individual parts,which is difficult to fully meet the needs of brake system performance optimization and evaluation.The influence of different braking characteristics on the braking performance is studied based on the rigid body dynamics theory.The relationship between brake parameters and braking performance under different working conditions is analyzed by orthogonal test.It is found that the acceleration curve of the hooked brake is optimized obviously with the characteristic of the normal brake,the growth rate of braking torque and the maximum braking torque are the key factors affecting the braking performance.Therefore,the normal braking torque growth rate is controlled by 2 000~3 000 N·m·s^-1 and the maximum braking torque is 15~20 kN·m,the braking performance can satisfy the optimal solution to the efficiency and brake time.

关 键 词：修井机 制动力矩 正交试验法 动力学 动载荷系数 

分 类 号：TE923[石油与天然气工程—石油机械设备]