Types and characteristics of lubricating oil filters

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Types and characteristics of lubricating oil filters

Date: 2020-01-10

Types and characteristics of lubricating oil filters:

The lubricating oil used in the lubrication process must be pure and free of impurities, otherwise it will seriously endanger the machine, such as conflict surface fuzzing, jamming and blocking of Tunhu tunnels, etc. Therefore, it is necessary to select filtering equipment to suspend impurities in the oil Filtered. Generally, the filtering equipment is separated by using various porous objects, membranes, or centrifugal force by using different density of oil and impurities. The filter materials used are cotton, felt, metal mesh and perforated metal foil. There are many types of filters, and some of them are commonly used.

Mesh filter

The figure below shows a mesh filter. It is composed of a shell 3, a network management core 2 (filter cartridge) and a copper wire mesh 1. After the lubricating oil is filtered through the screen from the inlet, it enters the filter and flows out through the outlet.

Sheet filter

The figure below shows a sheet filter. The lid has an oil inlet, and the oil is filtered through the space between the metals. In order to prevent the gap between the metal plates of the filter from being blocked, the handle should be rolled frequently to allow the separated metal plates to roll against each other, and the dirt between them should be scraped off. The oil filter should be cleaned once a quarter.

Line Gap Filter

The figure below shows a line-gap filter. Its filtering purity depends on the gap between adjacent metal coils. When the filter cylinder 2 is turned clockwise, the scraper 3 is used to remove the dirt on the external surface of the filter cylinder.

Magnet filter

The figure below shows a filter with two magnets. This filter is mainly to collect metal powder in oil.

It is necessary to note that the metal particles will not only accelerate the wear of the conflicting appearance, but also have the effect of catalyzing the catalyst that can promote the oxidation of oil. Therefore, on more important machinery, it is better to install the magnet filter and the line-gap filter in order. The larger particle size d of impurities passing through the oil filter is generally divided into four levels:

Coarse filtration accuracy d & gt; 0.1 mm.

General filtration accuracy d = 0.01 ~ 0.1mm.

Fine filtering accuracy d = 0.001 ~ 0.005mm.

Special precision filtration accuracy d = 0.005 ~ 0.0001mm.