I. Overview

1. The PWS-300 electro - hydraulic servo leaf spring fatigue test bench is mainly used to test the dynamic and static mechanical properties of various steel pole springs. It can not only complete the leaf spring fatigue test required by the standard, but also perform the characteristic test before the fatigue test. Such as automatic drawing of test force_deformation curve, calculation of leaf spring stiffness, etc. By replacing accessories, you can also test the dynamic and static mechanical properties of other parts by hand, which has the characteristics of good professionalism, high reliability, advanced technology, and easy-to-hand upgrade.

2. satisfies GB / T19844-2005  " leaf spring " , JB3383 -1998 " automotive leaf spring Bench Test Method " and the QC n-  29035- . 19 91 is "automotive leaf spring technical conditions" JBT 7283-2001 " agricultural machinery leaf spring " ISO18137 -2015 "Leaf Spring-Technical Specifications" and other national industry standards .

2. Main technical indicators:

1. Maximum dynamic and static test force : ±300KN.  

2. Test force indication accuracy: ± 1 % ( 2%-100 F.S).

3. Effective stroke of the actuator : ±150mm.    

4. Displacement measurement accuracy: ±0.5%FS.

5. The maximum amplitude of the actuator: ± 150 mm,

6. Operating frequency range: 0.1～15 Hz.

7. Moving range of beam: 1000 mm , distance between columns : 750 mm× 580 mm .

8. Main waveforms: sine wave, triangle wave, square wave, trapezoidal wave, ramp wave and program control wave, etc.

9. Control method: displacement and load control.

10. Pump station specifications : 21Mpa, 220L/min, 360 L/min , 700L/min.