The Commercial Vehicle Ball Joint Three-Dimensional Loading Endurance Test System is primarily used for thrust rod ball joints and vibration-damping rubber elastic bushings to conduct push-pull, torsion, and swing dynamic loading endurance fatigue tests on rubber bushing assemblies under specified loads. The test loading waveforms include sine wave, triangular wave, trapezoidal wave, and other types. It is an ideal, cost-effective test equipment widely applicable to research institutes, national defense and civil air defense, universities and colleges, automotive parts manufacturing, transportation, and other industries.

I. Main Functions of the Test Machine:

1. Capable of performing static and fatigue tests;

2. Tension, compression, torsion, and swing can be individually or compositely excited;

3. Can output stiffness measurement results;

4. Test condition parameters and test data are automatically saved for user convenience;

5. Automatic calibration of test machine accuracy and automatic zero adjustment;

6. Multiple control modes such as load, displacement, torque, and angle can be selected and smoothly switched;

7. Waveform display forms for displacement, load, torque, angle, etc., with real-time function and feedback curve display;

8. Individual and cumulative counting functions;

9. Test count and fatigue condition setting stop function;

10. Over-limit protection function for set load, displacement, force, and angle;

11. Unloading protection function: emergency stop in case of sudden pressure drop or no pressure in the hydraulic circuit;

12. Overload protection and emergency stop functions.

II. Main Technical Specifications of the Test Machine:

1. Radial dynamic test load: ±300 kN;

2. Radial maximum stroke: ±100 mm;

3. Radial load accuracy: ±1% F.S;

4. Radial amplitude fluctuation: ±2% F.S;

5. Dynamic torsion test torque: not less than ±50 Nm;

6. Torque accuracy: ±1% F.S;

7. Maximum swing angle: ±15°;

8. Maximum torsion angle: ±15°;

9. Torque accuracy: ±1% F.S;

10. Test frequency: 0.1–3 Hz (depending on the test amplitude-frequency characteristics).