Special testing machine for elastic cushion

1、 Features:

The special testing machine for elastic cushion is a series of new products newly developed by our company according to the electro-hydraulic servo dynamic and static universal testing machine Z. This series of products are easy to test and use, with high control accuracy and good reliability. The 100kN special testing machine for elastic cushion is one of the series of dynamic and static universal testing machines. This series of products have the characteristics of convenient use, high control accuracy and good reliability. This series of testing machine is designed by absorbing the international advanced electro-hydraulic servo dynamic testing machine technology in the process of research and development, combining the actual use situation of domestic users and adopting the development concept of "modularization, modularization and standardization". The key components of the testing machine are all famous brands of international and domestic similar products or processed with international advanced technology, which greatly improves the stability and reliability of the system. The overall performance of the testing machine is equivalent to the technical level of international advanced products.

The special testing machine for elastic cushion is mainly used for static stiffness test and fatigue test of elastic cushion. In addition, it can also be used for tensile, compression, low cycle and high cycle fatigue tests of materials and parts, crack propagation fracture mechanics and other mechanical tests of various materials by configuring corresponding accessories.

2、 Executive Standards and test requirements

TJ / gw114-2013 provisional technical conditions for EPDM elastic cushion layer of CRTs Ⅲ slab ballastless track of high speed railway

Appendix A: static stiffness test method of elastic cushion

Appendix B: fatigue test method of elastic cushion

That is, the special testing machine for elastic cushion can complete the static static stiffness test first and then carry out the fatigue test for elastic cushion.

High speed railway fasteners Part 1: General technical conditions (TBT 3395.1-2015)

3、 Main technical indicators of all digital single channel coordinated loading servo controller:

1. Number of control channels: 1, including two closed-loop control loops of test force and displacement, with undisturbed smooth switching function of control mode.

2. Number of configured site control interfaces: 2.

3. Z high closed loop control data refresh frequency is 6KHz;

4. The A / D and D / a resolutions of the controller are 16 bits;

5. Signal generation frequency range: 0.1Hz ~ 100Hz;

6. Waveform of signal generator: sine wave, triangular wave, square wave, sawtooth wave, etc;

7. Control accuracy: the typical value of static control accuracy is generally 0.3% FS, and the typical value of dynamic control accuracy is generally 0.5% FS;

8. Two stage servo valve driving unit;

9. Remote hydraulic pump station control function;

10. Counter capacity: 108;

11. Other necessary I / O units: four analog inputs and four analog output interfaces; Four digital input and four digital output interfaces (optional);

12. Limit parameter setting function;

13. It has complete protection function. In addition to overload (110%) protection and secondary overcurrent protection, it also has arbitrarily set dynamic load upper and lower limit protection, static load upper and lower limit protection, frequency protection, etc.