1、 Equipment Introduction:

The steering column assembly is one of the basic components of the automotive steering system. It is a key component that determines the safety and reliability of car driving. How to ensure that the steering column assembly meets the performance requirements of the design is a concern for us, especially the torsional fatigue life test of the steering column assembly, which is an important link to ensure and improve product quality.

2、 According to the standard for torsional fatigue life testing machine of steering column assembly:

QC/T523- Test bench for automotive transmission shaft assembly;

QC/T29082- Technical Conditions for Automotive Transmission Shaft Assembly;

QC/T293- Test Method for Automotive Half Axle Bench;

QC/T294- Technical Conditions for Automotive Half Axle;

3、 The steering column should be tested for 6 items:

Torsional fatigue life test bench

Rotary durability test bench

Electric variable tilt angle life and vertical fatigue test bench

Manual variable tilt angle life and vertical fatigue test bench

Lateral fatigue test bench for pipe column structure

Steering system life test bench

Steering column assembly torsional fatigue life testing machine

4、 Important features:

Horizontal, large-span, high rigidity, and high stability torsional load rack.

There are various control methods such as automatic load holding, stress and strain control, cyclic control, and self programming control.

The force gauge has a wide linear range and good stability, ensuring the accuracy of load measurement.

Having a variety of sophisticated testing fixtures for quick replacement; Optional torsion angle meter (torsion angle resolution: 0.0001 °).

Wide testing speed, freely selected within 0 ° to 720 °/min.

Automatic control of the experimental process, real-time display of torque, stress, deformation, and torsion angle.

The experimental curve can be arbitrarily selected as the coordinate axis, and can be freely enlarged and reduced; It can simultaneously display multiple curves such as torque time curve, torque angle curve, angle time curve, etc., and can set the required coordinates for full degree self adjustment.

5、 Technical specifications of equipment - Steering column assembly torsional fatigue life testing machine

1. Torque: 0-2000Nm (static) ± 1000Nn (dynamic)

2. Torque accuracy: ± 1%

3. Range of torsional fatigue frequency: 0.01-10Hz

4. Twisting speed: 0.01-720 °/min

5. Loading waveforms: sine wave, triangular wave, square wave, torsional stiffness setting value

6. Test piece size: total length of steering column; 500-1500mm