With the continuous development of the hydraulic industry, Hydraulic cylinder Are you familiar with hydraulic cylinders?

below Oil cylinder manufacturer Let me share with you the reasons why the hydraulic cylinder crawls during operation:

1. If there is air intrusion in the cylinder, an exhaust device should be added, or Hydraulic cylinder So that it can move quickly with a large stroke to force the air out.

2. If the seal ring at the end cover of the hydraulic cylinder is pressed too tight or too loose, the seal ring should be adjusted to have proper tightness to ensure that the piston rod can be pulled back and forth smoothly by hand without leakage.

3. The concentricity between piston and piston rod is not good, which should be corrected and adjusted.

4. If the hydraulic cylinder is not parallel to the guide rail after installation, it should be adjusted or reinstalled.

5. If the piston rod is bent, the piston rod should be straightened.

6. The rigidity of the piston rod is poor, so increase the diameter of the piston rod.

7. The clearance between moving parts of hydraulic cylinder is too large, and the fit clearance should be reduced.

8. If the installation position of the hydraulic cylinder deviates, the parallelism between the hydraulic cylinder and the guide rail should be checked and corrected.

9. The inner diameter of the hydraulic cylinder is poor in linearity (drum, taper, etc.), which should be repaired and the piston should be reconfigured.

10. For corrosion and galling in the cylinder, the rust and burr shall be removed, and if strict, it shall be bored and ground.

Due to the sudden reversing of the reversing valve, the hydraulic pump stops suddenly, and the movement of the actuating element stops suddenly,

Even man-made reasons such as the need for emergency braking of the actuating elements will cause sharp changes in the fluid flow in the pipeline, resulting in shock pressure (oil hammer).

Although there is a safety valve in the system, it is still inevitable to have a short-term surge and impact of pressure.

This kind of impact pressure often causes the failure or even damage of instruments, components and sealing devices in the system or pipeline rupture, and also causes obvious vibration of the system.

If an accumulator is installed before the control valve or hydraulic cylinder impact source, the impact can be absorbed and mitigated to absorb pulse and reduce noise.

The pulsating flow of the pump will cause pressure pulsation, which will make the movement speed of the actuator uneven and produce vibration, noise, etc.

Parallel connection of an accumulator with sensitive response and small inertia at the pump outlet can absorb flow and pressure pulsations and reduce noise.

The impact of hydraulic system power unit mainly occurs in the process of variable pressure and variable speed reversing,

At this moment, the moving liquid in the pipeline forms a very high pressure peak in an instant due to rapid reversing and sudden closure of the valve port,

Make the connector joint and flange loose or seal ring squeezed into the gap and damaged, etc. to form leakage In order to reduce leakage caused by impact and vibration,

The following methods can be adopted to fix all pipes with shock absorption brackets to absorb the energy of shock and oscillation!