大扭矩螺杆钻具试验台的研制及应用

针对螺杆钻具性能试验的需要,研制了20kN.m螺杆钻具试验台。该试验台由台架主机、加载系统、循环系统和测试系统4大部分组成。加载系统由2台10kN.m的磁粉制动器串联构成,可对φ95～260mm规格的螺杆钻具进行全工况性能试验。试验台采用计算机系统自动实现扭矩加载,调节循环流量,采集扭矩、转速、压差、流量、温度等数据,输出螺杆钻具的性能参数表格和特性曲线。实际应用表明,20kN.m螺杆钻具试验台设计合理,测试数据全面、准确,测试过程自动化程度高,完全能满足生产厂家及油田现场对螺杆钻具性能检测的需要。

Development and application of test bed for large torque screw drill

The 20 kN·m test bed for screw drill is developed to meet the demand of performance test of screw drill.The test bed comprises four parts:host machine system,loading system,circulation system and testing system.The loading system,made up of two 10 kN·m magnetic particle braking devices in series,can be used to perform the performance test of screw drill of φ95～260 mm in all working conditions.The computer system is used in the test bed to automatically realize the loading of torque,the adjustment of circulation flow rate and the acquisition of torque,rotating speed,pressure difference,flow rate and temperature as well as output of performance parameter table forms and feature curves of the screw drill.The actual application indicates that the test bed is designed reasonably with complete and accurate data measurement and high automation of measurement.It can completely meet the demand of performance test of screw drill from the manufacturers and field application.