What details do you need to pay attention to when repairing the oil cylinder of the liquid press brick machine?
2021-10-20
We all know that the oil cylinder is more important to the hydraulic brick machine, it provides sufficient pressure for the work of the equipment, is irreplaceable by other components, due to frequent work, coupled with the complex working environment, such as not pay attention to the oil cylinder will lead to a variety of failures in the maintenance of special attention to the details of the problem, otherwise it will cause secondary damage to the oil cylinder, the following we will introduce the hydraulic brick machine in the maintenance of the oil cylinder need to pay attention to what details.
Hydraulic brick machine
A cylinder piston rod guide sleeve inside
There will be scars on the inside of the guide sleeve, the surface of the uneven wear phenomenon, guide sleeve depth of more than 0.2-0.3mm, should promptly replace the guide sleeve;
Second, the surface of the cylinder piston
There are only slight scars on the surface of the piston, which usually will not affect the use, but when the depth of the scar is 0.2-0.3 mm, the piston should be replaced with a new one. If the end cover is shocked and the piston is cracked due to internal pressure during the inspection, you also need to check whether the seal groove is damaged, and then replace the piston in time;
Third, the cylinder barrel inner surface
The inner surface of cylinder usually has shallow linear friction or dotted scars, if the surface has deep longitudinal scars, even if the operator replaces the new piston seal, it is difficult to prevent oil leakage, this situation requires honing of the bore, which can be corrected with very fine sandpaper or tar, if such scars cannot be repaired, at this time, only brush plating can be used to repair or replace the cylinder;
Fourth, the cylinder piston rod surface
When the piston rod seal is sliding relative to the sliding surface of the piston rod, if the surface of the piston rod is longitudinally pulled up or scratched, after preliminary judgment, the same treatment method as the cylinder inner surface can be used. The sliding surface of the piston rod is usually plated with hard chrome, part of the coating is peeling off due to wear and tear, then the old coating must be removed after the formation of longitudinal scars, and then re-plated with chrome and polished;
V. Cylinder seals
Piston seal and piston rod seal is to prevent the hydraulic system hydraulic cylinder inside and outside the oil exposure of the key components, in the inspection of seals, first of all, to observe whether the lip of the seal is damaged or the friction surface of the seal is friction, if the lip is found to have a scar or seal friction surface wear, should be promptly replaced with a new seal;
Six, the cylinder other notes
When checking other parts of the cylinder, it will change with the structure and use of the cylinder, but when checking, you should pay attention to the end cap part, the earring and hinge shaft for cracks and abnormalities, the piston rod thread and oil thread, and the welded parts for disconnections and cracks.
The above is a summary of the hydraulic brick machine cylinders need to repair the place and details, different locations of wear or strain, different repair methods, need to be treated differently, in the maintenance process but also good sealing and dust removal measures to avoid secondary damage.
Automatic hydraulic brick mach...