Multi-section pipe assembly bending and torsion composite rotation fatigue test system

Multi-section pipe fitting connecting sleeve assembly bending and torsion composite rotation fatigue test system
1. Application
Multi-section pipe fitting connecting sleeve assembly bending and torsion composite rotation fatigue testing system is used for oil field drill pipes, coal mines, etc. Fatigue test of drill pipe connecting ferrule under the combined action of rotation and bending moment. This test system uses multi-section pipe connections, a test plan that truly simulates working conditions, and a loading method that uses grid feedback to impose a load. Its two biggest features are: energy feedback, which not only saves energy, but also does not generate heat itself, and does not require magnetic powder brakes and eddy currents. The loader needs water cooling like that. The loading characteristics are good, and the constant torque characteristics can be maintained from zero speed to the rated speed. Unlike the eddy current loader, which does not have the disadvantage of loading at low speeds, it can simulate loads under various working conditions (such as zero speed working conditions). condition).
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2. Technical requirements :
.Adopt grid feedback loading method.
.Torque range:
3. Speed range:
.Torque measurement accuracy: +/-
.Speed measurement accuracy: .+
.Torque control accuracy:< br/> .Speed control accuracy:
.Measurement display parameters: torque, speed digital display or curve, (current, voltage, frequency, instantaneous waveform and effective value of current, voltage)