Hydraulic system filter adopting magnetizing, adsorbing and centrifuging

Abstract

The invention relates to a filter for a hydraulic system using magnetization, adsorption and centrifugation. A U-shaped particle separation module, an oil return cylinder and an outer barrel are sequentially placed on the bottom plate; the U-shaped particle separation module is provided with a hydraulic oil inlet. It includes a U-shaped tube, on which a temperature control module, a magnetization module, a mechanical centrifuge module, an adsorption module and a degaussing module are installed in sequence; the U-shaped particle separation module and the upper part of the oil return cylinder are connected through an oil return cylinder oil inlet pipe; The inner cylinder is placed in the outer barrel, which is installed on the end cover through a top plate and several bolts; the spiral flow channel is accommodated in the inner cylinder, and is connected with the U-shaped particle separation module through an inner cylinder oil inlet pipe; the inner cylinder inlet The oil pipe is located in the oil inlet pipe of the oil return cylinder and extends into the center of the U-shaped particulate separation module; the filter element is arranged on the inner wall of the inner cylinder; a hydraulic oil outlet is provided at the bottom of the outer barrel. 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, in particular to a filter for a hydraulic system using magnetization, adsorption and centrifugation, 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 to remove solid particle contaminants. T...

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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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