The technical characteristics and advantages of the 500ton universal testing machine

The technical characteristics and advantages of the 500-ton universal testing machine:

This series of testing machines adopts ultra-high rigidity design, and each stressed component is analyzed and designed by finite element, and is precisely processed and tested. The oil source system adopts a load-adapted throttling speed regulation system, which has undergone repeated pressurization inspections and maximum load retention tests. The controller adopts a new generation of high-performance, intelligent all-digital independent controller. The measurement and control software adopts a combination of advanced measurement and control algorithms, which can accurately control the entire test process and fully meet the requirements of various material test methods.

1. The host adopts a streamlined appearance design, the design strength of each component is reasonable, the overall combination is beautiful and practical, and the independent painting process can customize the paint effect and color according to customer needs to match the customer's on-site environment;

2. The whole machine adopts finite element stiffness analysis to design stiffness, the test deformation is very small, and it can work stably for a long time;

3. The coaxiality between the center line of the upper and lower chuck and the tensile axis of the testing machine is 8% (much better than the requirements of the national standard that the coaxiality of the first-level testing machine is less than 15%, and the coaxiality of the 0.5-level testing machine is less than 12%);

4. High rigidity half-open jaw seat, high strength, small deformation, stable clamping;

5. The lead screw is precision processed with high-performance carbon structural steel, with low friction coefficient and high transmission efficiency;

6. The oil cylinder adopts imported sealing ring, with less friction resistance, which is conducive to flexible and accurate control, and the oil cylinder and piston will never wear;

7. The upper and lower chuck are made of cast steel material, using lost foam casting, heat treatment, shot peening and precision processing; high rigidity, small test deformation;

8. The main engine adopts an upper-mounted cylinder structure, and the test space is reasonably arranged, which conforms to the principle of ergonomics;

9. The hydraulic system adopts servo closed-loop control and is equipped with highly responsive servo valves. The reversing valve, sequence valve, etc. all use high-precision component spools, fast response, high sensitivity, tracking, follow-up, adjustability and other functional characteristics , Can realize fully automatic and precise control, it is the advanced technology, high quality, and high-end hydraulic servo system in the current testing machine;

10. The hydraulic system design fully considers energy saving, reliability, safety and environmental protection. Using differential pressure throttle speed regulating servo system, the working pressure of the system is automatically adjusted as the load changes, reducing system heating and saving energy. All components adopt components that meet environmental protection requirements;

11. Imported internal meshing high-pressure gear pump is directly connected to the motor structure, compact structure, stable operation, and the noise is less than 70dB;

12. Use high-pressure hoses and joint bodies of high quality to ensure that no leakage occurs;

13. The high-precision transmitter used in the host has high comprehensive accuracy, high sensitivity and good repeatability. After random calibration, the test is not affected by external forces, which can ensure the accuracy of the test process and parameters. The direction of force applied to the test sensors of tension and compression is the same. Calibration and calibration are simple and convenient;

14. Displacement measurement adopts high-precision pull-wire photoelectric encoder;

15. The testing machine is equipped with a high-performance intelligent all-digital controller, adopts all-digital PTD adjustment, and is equipped with an independent servo amplifier, measurement and control software, and data acquisition and processing software, which can achieve constant rate test force, constant rate cylinder displacement, and constant rate strain Various closed-loop control modes, and can realize smooth switching between different control modes without disturbance;

16.With a network interface, it can realize data networking and remote control functions;

17. Safety protection device: It has protection functions such as test force overload, over setting, power failure, and piston reaching the limit position.