Oil filtering device adopting magnetization, adsorption, rotating magnetic field and centrifugation and used for hydraulic system

Abstract

The invention relates to an oil filter device for a hydraulic system using magnetization, adsorption, rotating magnetic field and centrifugal. The U-shaped particle separation module, the oil return cylinder and the outer barrel are placed on the bottom plate in sequence; the U-shaped particle separation module is provided with a hydraulic Oil inlet, which includes a U-shaped tube, on which a temperature control module, a magnetization module, a mechanical centrifugal module, a first adsorption module, a rotating magnetic field centrifugal module, a second adsorption module and a degaussing module are installed in sequence; U-shaped particle separation The upper part of the module and the oil return cylinder is connected through the oil return pipe of the oil return cylinder; the inner cylinder is placed in the outer barrel, and it is installed on the end cover through a top plate and several bolts; the spiral flow channel is contained in the inner cylinder, and it and U-shaped particles The separation module is connected through an inner cylinder oil inlet pipe; the inner cylinder oil inlet pipe is located in the oil return cylinder oil inlet pipe and extends into the center of the U-shaped particle separation module; the filter element is arranged on the inner wall of the inner cylinder. The invention has many advantages such as good filtering performance, high adaptability and integration, long service life and the like.

Description

【Technical field】 [0001] The invention relates to a hydraulic oil filter device, in particular to an oil filter device for a hydraulic system using magnetization, adsorption, rotating magnetic field and centrifugal, and belongs to the technical field of hydraulic equipment. 【Background technique】 [0002] Statistics at home and abroad show that about 70% to 85% of hydraulic system failures are caused by oil pollution. Solid particles are the most common and harmful pollutants in oil pollution. Hydraulic system failures caused by solid particle pollutants account for 70% of total pollution failures. Among the particle pollutants in hydraulic system oil, metal wear debris accounts for between 20% and 70%. Taking effective measures to filter out the solid particle pollutants in the oil is the key to the pollution control of the hydraulic system, and it is also a reliable guarantee for the safe operation of the system. [0003] Filters are key components of hydraulic systems ...

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Problems solved by technology

[0004] However, the high-pressure filters used in the existing hydraulic systems have the following deficiencies: (1) Various hydraulic components have different requirements for the cleanliness of the oil, and the particle sizes of the solid particles in the oil are also different. This requires the installation of many different types of filters at different positions in the hydraulic system, which brings problems of cost and installation complexity; (2) The filter in the hydraulic system mainly adopts the filter cake filter method, and the filtrate is perpendicular to the The surface of the filter element flows, and the intercepted solid particles form a filter cake and gradually thicken, and the filtration speed gradually decreases until the filtrate stops flowing out, which reduces the service life of the filter element

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