Filter adopting magnetization, adsorption and rotating magnetic field for hydraulic system

Abstract

The invention relates to a filter adopting magnetization, adsorption and a rotating magnetic field for a hydraulic system. A U-shaped particle separating module, an oil return barrel and an outer barrel of the filter are sequentially mounted on a bottom plate. The U-shaped particle separating module is provided with a hydraulic oil inlet and comprises a U-shaped pipe, and a temperature control module, a magnetization module, a first adsorption module, a rotating magnetic field centrifugal module, a second adsorption module and a demagnetization module are sequentially mounted on the U-shaped pipe. The upper portion of the U-shaped particle separating module and the upper portion of the oil return barrel are connected through an oil return barrel oil inlet pipe. An inner barrel is arranged in the outer barrel and mounted on an end cover through a top plate and a plurality of bolts. A spiral flow channel is accommodated in the inner barrel and connected with the U-shaped particle separating module through an inner barrel oil inlet pipe. The inner barrel oil inlet pipe is located in the oil return barrel oil inlet pipe and extends into the center of the U-shaped particle separating module, and a filter element is arranged on the inner wall of the inner barrel. The filtering device has the advantages of being good in filtering performance, high in adaptability and integration, long in service life and the like.

Description

【Technical field】 [0001] The invention relates to a hydraulic oil filter device, in particular to a filter for a hydraulic system using magnetization, adsorption and a rotating magnetic field, 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 particl...

AI Technical Summary

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

Images