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How to maintain the cylinder of the three-way machine

How to maintain the cylinder of the three-way machine

The three-way oil cylinder through the process can reduce the problems of the cylinder, the main reasons are two: one is just repaired cylinder or cylinder placed for a long time, creeping at the beginning of use, and sometimes foam hydraulic oil overflow can be seen in the hydraulic tank, this is because the system is mixed with air, clean the air can be. Second, the mechanical resistance is too large, to remove the cylinder, live cold and piston rod.

Cylinder thrust is lack, the cylinder does not work when there is load. The following experiments can be done: when the cylinder is empty, the reversing valve is operated. If the cylinder can be elastic from the mountain, and sometimes the extension and retraction speed is faster than normal, it can be concluded that the cylinder is faulty. The oil seal and supporting ring on the piston are severely damaged due to impurities or iron filings in the cylinder, so that the rod-cavity and rod-less cavity of the cylinder are connected, and a differential loop is formed.

Oil leakage, in addition to the external oil leakage caused by the damage of the connecting tubing and tubing O-ring, the internal oil leakage caused by the failure of the piston rod seal on the cylinder head is also a more common problem.

Cylinder pulling, hydraulic cylinder pulling mainly because the piston and cylinder wear ring between the piston and cylinder after excessive wear makes the piston and cylinder directly touch, the piston hardness is greater than the cylinder hardness, the piston will cut the cylinder and lead to cylinder pulling. After pulling the cylinder, the hydraulic cylinder is weak to raise and fall, and the cylinder is invalid if the cylinder is severe.

Deformation, hydraulic cylinder deformation is mainly because the hydraulic cylinder is hit by external force or heavy load.

The piston rod of the hydraulic cylinder is damaged, such as the piston rod is scratched by external objects or the piston rod surface is communicated with the hollow cavity.

The above describes the three-way oil cylinder in use can reduce the occurrence of defects, according to the above process, can make the three-way machine cylinder defects reduced. That is, how to maintain the three-way oil cylinder.