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A little question about hydraulic universal testing machines

Views:327     Author:Site Editor     Publish Time: 2021-10-27      Origin:Site



As hydraulic universal testing machines are used in numerous testing applications, you may still have a few questions about hydraulic universal testers, so if you too are confused, then take a look at my answers!



Here is the content list:

  • What is the main difference between the hydraulic universal testing machine and the control system of the universal servo testing machine?

  • What are the precautions to take when operating a hydraulic universal testing machine?

  • Why is there a deviation in the indicated value of the hydraulic universal testing machine?

  • Hydraulic universal testing machine how to measure the maximum bending moment?



What is the main difference between the hydraulic universal testing machine and the control system of the universal servo testing machine?

Hydraulic universal testing machine and universal servo testing machine control system of the main differences: first of all, the motor, transmission mode is different: hydraulic universal testing machine using disk motor usually has a chain drive and worm gear worm drive, universal servo testing machine using servo motor, through the belt drive; secondly, the clamping method is slightly different: hydraulic universal testing machine-independent hydraulic clamping system, universal servo testing machine mainly includes Manual clamping method and hydraulic clamping method; Finally, the loading method is different: hydraulic universal testing machine using the original imported hydraulic pump unit and the original hydraulic valve, high-precision wide frequency electro-hydraulic servo valve for loading, while the universal servo testing machine using a motor through the pulley reduction system to drive the precision screw vice rotation, so as to drive the middle beam up and down to load the specimen.



What are the precautions to take when operating a hydraulic universal testing machine?

First, pay attention to the switching sequence; second, pay attention to the software installation environment; third, observe whether the display value is displayed.Other points to note: the key parts of the hydraulic universal testing machine (e.g. jaws, gearbox, etc.) should be filled with lubricating grease frequently. The computer should be placed in a dry and ventilated room. If it is not used for a long time, it should be energized and run once a month.



Why is there a deviation in the indicated value of the hydraulic universal testing machine?

If the value of the hydraulic universal testing machine deviates, it is most likely due to the following two reasons: it may be that the cylinder and piston of the main unit are not perpendicular, which will bring about deviation in the value. The second is the deviation of the value brought about by the incorrect installation of the force gauge. Dynamometer device important request your right, if tilted to the right then the tooth rod drape and push rod between the angle increases, thus incurring too little oil pressure, resulting in the impact of the accuracy of the experimental machine, if the dynamometer device to the left, the result is the opposite.



Hydraulic universal testing machine how to measure the maximum bending moment?

In the hydraulic universal testing machine settings, enter (force arm), set the test method after the end of the test can automatically appear at the end of the test.



Whether you choose a single-column or double-column hydraulic universal testing machine, you need to pay attention to the applicability of the product, according to the force value and the needs of the customer, choose the right hydraulic universal testing machine. Through the above answers, do you have a better understanding of the hydraulic universal testing machine?


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