Electromagnetic oil filter and bulldozer

Abstract

The invention discloses an electromagnetic oil filter and a bulldozer, and belongs to the field of machine manufacturing. The electromagnetic oil filter comprises a shell 1, filter screens 4, coils 2 and a power supply, wherein the coils 2 and the power supply are connected, and the coils 2 are wound on the periphery of the shell 1 in a spiral manner; one end of the shell 1 is provided with an oil outlet 3, the other end of the shell 1 is provided with an oil suction port 6, and the filter screens 4 are cylindrical; the filter screens 4 are arranged in the shell 1, center lines of the coils 2 and center lines of the filter screens 4 are parallel; the oil outlet 3 of the shell 1 is positioned on the inner sides of the filter screens 4, and the oil suction port 6 of the shell 1 is positioned on the outer sides of the filter screens 4. According to the technical scheme, the electromagnetic oil filter and the bulldozer provided by the invention have the advantages that the adsorbed direction of scrap irons and the flow direction of an oil liquid are oppositely arranged, so that the problem that the adsorbed scrap irons can be easily washed away due to the same direction with flow direction of the oil liquid can be solved, the cleanliness of the oil liquid is improved, and the service life of equipment is prolonged.

Description

technical field [0001] The invention belongs to the field of mechanical equipment manufacturing, and relates to an oil filter, in particular to an electromagnetic oil filter and a bulldozer. Background technique [0002] The oil cleanliness of the transmission hydraulic system on the bulldozer is relatively high, and the main source of pollution is iron filings. The existing magnetic oil filter for bulldozers basically adopts the filtering method of natural magnet + filter screen. Although the basic functions are satisfied, the following problems still exist: [0003] 1) Natural magnets are weak in magnetism and weak in adsorption capacity. A large amount of wear iron filings are often produced in the bulldozer transmission system. If they cannot be removed in time, these iron filings will multiply several times with each cycle of the oil, eventually causing Problems such as reduced oil cleanliness and stuck valves; [0004] 2) At present, the natural magnet installed on t...

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Problems solved by technology

[0007] In view of this, the present invention solves the problem that the absorbed iron filings are in the same direction as the oil flow and are easily washed down again by setting the iron filings to be adsorbed in the opposite direction to the oil flow, improving the cleanliness of the oil and prolonging the service life of the equipment

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