Thin Oil Lubrication System and Its Oil Spill Prevention Filter Element

Abstract

The invention provides a thin oil lubricating system and an oil-overflow-preventing filter element thereof. The oil-overflow-preventing filter element comprises an annular top cover, a cylindrical outer filter screen, a barrel-shaped inner filter screen, and a locking device, wherein the upper end of the outer filter screen is fixed to the lower surface of the top cover; and the inner filter screen is provided with a closed base plate which is located on the lower portion, and the inner filter screen is arranged in the outer filter screen in a vertical sliding mode; when the inner filter screen slides into the outer filter screen, the upper end of the inner filter screen is in sealed connection with the inner wall of the outer filter screen or in sealed connection with the top cover, and the lower end of the inner filter screen is in seal with the lower end of the outer filter screen; when the inner filter screen slides out of the outer filter screen, the upper end of the inner filter screen is in seal with the inner wall of the lower end of the outer filter screen; and the locking device is provided with a self-induction device which can stretch and contract below the inner filter screen, and the locking device is used for controlling the position of the inner filter screen in the outer filter screen. According to the oil-overflow-preventing filter element, the inner filter screen can slide out of the outer filter screen, so that the oil passing area of the filter element is enlarged, the oil passing speed of the filter element is increased, and oil overflow of a return oil tank is prevented.

Description

technical field [0001] The invention relates to the technical fields of thin oil lubrication, filtration and oil spill prevention, in particular to a thin oil lubrication system and an oil spill prevention filter element. Background technique [0002] On the production line of metallurgical enterprises, hydraulic lubrication systems generally exist, such as thin oil lubrication systems, which mostly use net-type oil return filter 2 (referred to as filter 2 for short) to filter thin oil and return oil. Specifically, such as Figure 1-Figure 3 As shown, the high-temperature thin oil with impurities returns to the oil tank 1 through the oil return pipe 14, and the thin oil returned to the oil tank 1 first enters the oil return pool 15 composed of the oil tank wall and the upper support plate 11 placed horizontally, and the oil return pool 15 It is an open oil return tank. There are a plurality of through holes on the upper support plate 11, and a filter 2 is respectively place...

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide an oil spill prevention filter element to solve the problem in the prior art that thin oil easily overflows the oil tank

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