Analysis of the reason why the cylinder speed of the hydraulic universal test machine does not reach the specified value

I believe everyone knowsHydraulic universal testing machineIt is hydraulic loading, and the hydraulic system will have a cylinder working speed that does not reach the specified value. So what is the reason? Jinan test machine experts share with you that there are roughly eight reasons.

I believe we all know hydroulic universal testing machine is using the hydroulic loading,hydraulic system will appear cylinder operating speed is not up to the specified value, so what is the cause of it, Ji'nan test machine experts to share with you, there are eight reasons.

1. The difference in coaxiality between the piston, piston rod and cylinder head.

A, piston, piston rod and cylinder coatial degree difference.

2. The hydraulic universal testing machine is improperly used, and the external load is larger than the predetermined value.

Improper use of two, hydroulic universal testing machine, the load is greater than a predetermined value.

3. The parallelism between the hydraulic cylinder and the workbench is different.

Three, the hydroulic cylinder and the table parallel to the poor.

4. Serious internal leakage.

In four, the serious leak.

5. The seal is damaged.

Five, the seal is broken.

6. The matching gap between the piston rod and the guide sleeve is small

Six, the piston rod and the guide sleepe with the gap is small

7. When the piston moves, the mechanical assembly quality is poor.

Seven, the piston moves "don't mind", the poor quality of mechanical assembly.

8. Dirt enters the sliding part of the hydraulic system of the hydraulic universal test machine.

Eight, a sliding parts dirt into the hydroulic system of hydroulic universal testing machine.

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