How to prevent foreign objects from entering the hydraulic cylinder

In the process of using the hydraulic cylinder, foreign matter often enters the cylinder. Once foreign matter enters the cylinder accidentally, it will cause damage to it, and it will stop using it in severe cases. So, what should we do to prevent foreign objects from entering? Let's take a look.

Foreign matter generated during operation, friction iron powder or iron filings formed due to the unusual strength of the buffer plunger, the matching clearance of the buffer device is small, and the lateral load on the piston rod is large, which may cause sintering. These friction iron powders Or the metal fragments that have fallen off due to sintering will remain in the hydraulic cylinder.

　　 Foreign matter enters into the hydraulic cylinder body during installation, and the place where the installation operation is performed is under bad conditions. Foreign matter can enter unconsciously. Therefore, the surrounding area of the installation site must be cleaned up, such as the place where the parts are placed.

The sealing tape enters the hydraulic cylinder. As a simple sealing material, if the winding method is wrong during installation and inspection, the sealing tape will be cut off. As it enters the cylinder, the tape-shaped seal will not have any effect on the winding of the sliding part. , But it will cause the cylinder's one-way valve to malfunction or cause the buffer regulating valve to fail to adjust to the end. For the circuit, it may cause the reversing valve, overflow valve and pressure reducing valve to malfunction.

　　Foreign objects that enter the hydraulic cylinder, because the oil port is not opened during storage, it will cause conditions to accept foreign objects at all times. This is not allowed. When storing, it must be filled with anti-rust oil or working oil and plugged.

The chips formed during pipe processing. After the pipe is cut to length, there should be no burrs during the deburring operation at both ends. Placing steel pipes near the site where the welding pipeline is performed is the cause of welding foreign matter. For pipes placed near the welding operation site, the nozzles must be sealed, and it should be noted that the pipe fitting materials should be prepared on a clean workbench.

　　 There are burrs on the parts and they are not clean. The oil ports on the hydraulic cylinder cover or the buffer device often have burrs left by the drilling process. Pay attention to it and install it after the sand is removed.

　　 In addition, during the use of the hydraulic cylinder, you should also check the outlet where it is easy to enter foreign matter, and clean it regularly to prevent foreign matter from entering, thereby increasing its service life.