Installation of hydraulic cylinder after the sealing groove

(2) to increase the wear of the seals

Most dynamic seals are properly design, if dynamic seal parts processing pass, accurate installation, hydraulic cylinder by using reasonable can guarantee long time absolutely no leakage task. From the design point of view, the designer can take the following approach to extend the life of the seals:

To remove the side load on the piston rod and the sealing member of the drive shaft;

II with dust ring, protective cover and rubber cover to protect the piston rod, to avoid abrasive, dust and other impurities to enter;

Design and select the appropriate filter installation and easy to clean the oil tank to avoid the accumulation of dust in the oil;

The piston rod and the shaft speed of the lowest possible.

(3) a request for a static seal

Static seal in the rigid fixation of the surface to avoid oil leakage. Reasonable design of sealing groove size and tolerance, hydraulic cylinder so that the installation of the seal to a certain deformation of the deformation in order to fill with the appearance of the macro depression, and the seal of the internal stress progress to higher than the sealing pressure. When the rigidity of the parts or the bolt is not big enough, with the appearance of the oil pressure in the role of the formation of the gap or increase because the sealing surface is not enough to be able to exist from the beginning of the gap. Along with the appearance of the static, static seal is a dynamic seal. With the appearance of rough will wear seal, seal clearance changes will swallow up the edge.

(4) reasonable design and installation board

When valve group or a bottom plate by a bolt fixed in the mounting surface and alloy 12Cr1MovG tube in order to obtain satisfies the initial seal and avoid sealing parts being squeezed out of the trench and were worn, hydraulic cylinder mounting surface must be straight, the sealing surface please refinement processing, surface coarse degree to reach 0.8 m, stereo degree to reach 0.01 / 100mm. The surface can not have radial scratches, the convergence of the screws to the pre tightening force to avoid the appearance of the.

(5) master oil seal to avoid disintegration

Premature seal metamorphosis can be caused by many factors, one of the main factors is the temperature too high. When the temperature is reduced by 10 degrees, the seal life will be halved, so the design of high efficiency hydraulic system and cooling installation should be reasonably designed, and the oil temperature can be maintained at 65.