Development And Experiment Of Deep Water Electric Torque Tool

Underwater torque tools are necessary basic equipment for the development of offshore oil and gas resources.my country's research in this field is still at a preliminary stage or even blank,and all practical projects rely on imports.With the intensification of Sino-US trade disputes,CNOOC,a leading company in my country's offshore oil field,has also been included in the so-called entity list.The development of localized underwater special equipment with independent intellectual property rights has become a top priority.This subject is a product research and development project commissioned by Offshore Oil Co.,Ltd.to meet engineering needs.It aims to develop a torque tool system that can achieve constant torque output and meet the requirements of underwater operations.First,according to the development status of torque tools at home and abroad and the specific design requirements of users,a deep-water underwater torque tool that is suitable for a water depth of 1500 meters(with a pressure balance device),is driven by a motor,and can be remotely controlled by a network is proposed.The design plan includes the main parts such as mechanical structure design,measurement and control system design,and micro hydraulic system design.In the mechanical structure design part,the optimized design of the front-end interface size has been completed.The three-dimensional model is established through Solidwork and imported into ANSYS,and the front-end interface is simulated by finite element.In order to meet the requirements of lightweight design,the front-end interface is topologically optimized,and the Under the premise,its mass is reduced by 38%;a hydraulic locking device is designed and theoretically calculated;the structure design of the pressure balance device is completed,and the compensation volume of the pressure balance device is calculated;the structure design of the control cabin shell is carried out according to The main failure mode of the control cabin,the critical pressure value of the control cabin shell is obtained through theoretical calculations,the 3D model of the control cabin is established by Solidworks,and the eigenvalue buckling analysis is imported into ANSYS software,which verifies the rationality of the theoretical calculation and shows that the design wall thickness satisfies Claim.In the power system part,a torque motor is used as a power device,and a threering reducer is used to achieve torque amplification and speed reduction.According to the technical requirements of the torque tool motor,electromagnetic calculation is carried out on the stator and rotor of the motor,and the motor efficiency MAP is obtained.Based on the oil-filled heat dissipation method of the motor,the factors affecting the temperature rise of the motor are analyzed,and the thermal analysis model of the motor is established.The design and calculation of the transmission ratio of the three-ring reducer and the main parameters of the gear transmission were completed,and the theoretically designed gear transmission was modeled and imported into the ADAMS software,and a virtual prototype of the three-ring reducer gear transmission was established.The torque tool measurement and control system has been developed,and related functional experiments and calibration experiments have been carried out.After the calibration experiment is completed,the torque tool is subjected to repeatability error experiments.The experimental results show that the output torque accuracy of the developed deepwater torque tool meets the design requirements.