Filtering device adopting work condition self-adaptive filtering, magnetizing and adsorbing

Abstract

The invention relates to a filter device adopting working condition self-adaptive filtering, magnetization and adsorption. The filter, U-shaped particle separation module, oil return cylinder and outer barrel are sequentially placed on the bottom plate; the filter is connected to the U-shaped particle separation module. The U-shaped particle separation module includes a U-shaped tube, and the U-shaped tube is sequentially installed with a temperature control module, a magnetization module, an adsorption module, and a degaussing module; the U-shaped particle separation module and the oil return cylinder pass through an oil return cylinder oil inlet pipe Connection; 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 it is connected with the U-shaped particle separation module through an inner cylinder oil inlet pipe; The barrel oil inlet pipe is located in the oil return barrel 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 barrel; the bottom of the outer barrel is provided with a hydraulic oil outlet. 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 a filter device adopting working condition self-adaptive filtering, magnetization and adsorption, 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. Metal debris accounts for 20% to 70% of the particle pollutants in hydraulic system oil. 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....

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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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