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In fact, for the hydraulic cylinder, the main factor affecting its service life is friction. Of course, all machinery in the process of operation will produce friction, and friction is the key factor affecting the service life of the hydraulic cylinder. After the engine starts, there will be a lot of friction, such as the friction between the piston ring on the hydraulic cylinder block and the cylinder arm surface.
Friction between crankshaft and bearing bush. Under normal circumstances, after the rotation of the hydraulic piston pump, there will be friction between the piston and the cylinder hole, and there will be friction between the valve plate and the cylinder port surface. Today, to reduce the effects of friction, oil is usually used to lubricate the area where friction occurs. These lubrications are actually interstitial lubrication.
Lubrication measures mainly include three aspects of the role, namely lubrication, sealing and force transfer. In the clearance lubrication, there are also different lubrication states, in which the mechanical sliding between metals, as well as the actual working conditions are different. Lubrication actually refers to the coating of an oil film on the surface of a metal material, so that the metal and metal movement under a small gap, the two do not contact.
If it is not lubricated, it is likely that there will be very serious friction between the two, which will seriously affect its service life. These frictions will not only increase the burden of the engine, but also accelerate the wear of the working surface of the parts. In serious cases, the heat generated by friction will also burn the working surface of the parts, causing the engine to fail to operate.
In fact, the main function of lubrication is to reduce the degree of friction between metal materials when the equipment is working, so as to improve its stability and durability. When carrying out lubrication, it is also necessary to carry out regular lubrication according to the actual situation to ensure the lubrication effect.
