Design and Application of Torque Measurement and Analysis System for Iron Roughneck

Abstract

Torque measurement and analysis system for iron roughnecks are designed to solve the problems of low accuracy by using pressure sensors and no torque data storage. Firstly, this paper analyzed the reasons for the low accuracy of torque calculation by using a pressure sensor. According to the iron roughneck's mechanical structure and motion characteristics, a force sensor was designed to replace the pressure sensor. The accuracy of torque measurement is improved by electrical measurement, and the torque is transmitted and recorded digitally through the user interface. The installation method has been tested on a universal testing machine, and the measurement error of the system less than 1%, which meets the design requirements. Finally, through the field application, this method can accurately identify the operation status of the iron roughneck, and the user interface can completely record the production data of the iron roughneck, and the waveform record is complete. The practical application shows that this method realizes the digital display and data storage of torque and has certain practical value.