Oil filter adopting full-band variable-structure work condition self-adaptive filtering, magnetization and adsorption

Abstract

The invention relates to an oil filter which adopts self-adaptive filtering, magnetization and adsorption under full-frequency variable structure working conditions. The structural condition adaptive filter is connected with the U-shaped particle separation module; the U-shaped particle separation module includes a U-shaped tube, and the U-shaped tube is equipped with a temperature control module, a magnetization module, an adsorption module and a degaussing module; the U-shaped particle separation module The separation module and the oil return cylinder are connected through the oil inlet pipe of the oil return cylinder; the inner cylinder is placed in the outer barrel, which is installed on the end cover; the spiral flow channel is accommodated in the inner cylinder, and it and the U-shaped particle separation module enter through an inner cylinder. The oil pipe is connected; the oil inlet pipe of the inner barrel is located in the oil inlet pipe of the oil return barrel and extends into the center of the U-shaped particle separation module; the filter element is arranged on the inner wall of the inner barrel; 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 an oil filter with adaptive filtering, magnetization and adsorption under full-frequency variable structure working conditions, and belongs to the technical field of hydraulic equipment. 【Background technique】 [0002] Statistics at home and abroad show that about 70%-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 particulate pollution accounted for 70% of total pollution failures. Among the particulate pollutants in the hydraulic system oil, metal wear debris accounts for 20% to 70%. Taking effective measures to filter out solid particle pollutants in the oil is the key to the pollution control of the hydraulic system and a reliable guarantee for the safe operation of the system. [0003] The filter is a key element of the hydraulic system to filter out sol...

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Problems solved by technology

[0004] However, the high-pressure filter used in the existing hydraulic system has the following deficiencies: (1) The flow pulsation and pressure pulsation caused by the periodic oil discharge mechanism of the hydraulic pump in the hydraulic system cause the filter element in the filter to be forced to work. Vibration reduces the filtration performance; (2) 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, so it is necessary to install them at different positions in the hydraulic system There are many different types of filters, which brings problems of cost and installation complexity; (3) The filter in the hydraulic system mainly adopts the filter cake filtration method, and the filtrate flows perpendicular to the surface of the filter element during filtration, and the intercepted solid The particles form a filter cake and gradually thicken, and the filtration rate gradually decreases until the filtrate stops flowing out, reducing the service life of the filter element

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