检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]甘肃蓝科石化高新装备股份有限公司,兰州730070 [2]兰州市第三中学,兰州730030 [3]吉林途兴石油机械有限公司,长春130014
出 处:《石油矿场机械》2013年第6期60-63,共4页Oil Field Equipment
摘 要:液压拆装架用于井下工具螺纹的上紧和卸扣,转矩的测量和控制是通过主钳来完成。力臂式主钳是由液缸推动传力杆产生转矩,力臂的长度随转角而变,实际测量转矩时是取定长力臂进行计算,因此误差较大。齿轮齿条式主钳是由液缸推动齿条,齿条带动拧扣大齿轮产生转矩,力臂是拧扣大齿轮的节园半径,因此转矩测量误差仅与仪表精度有关。齿轮齿条式主钳实现了转矩的实时测量和控制,测量精度高。The downhole tools to making-up and breakout using hydraulic device and torque meas- urement and control are implemented with main tong. Force arm tong is driven by hydraulic torque, with the length of force arm changing with turning angle. The calculation of the force arm is done by using actual measuremem of torque,which produces error. The gear rack is pushed by hydraulic cylinder in type of gear wheel and gear wheel tong. The torque is built when gear rack driving gear wheel. The force to turn gear wheel is by wheel radius,so the measurement error by the torque is something related to the instrument precision. The new type of gear wheel and rack tong gives real-time measure and control,and the accurate measurement is obtained.
分 类 号:TE921.27[石油与天然气工程—石油机械设备]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.229