Intelligent dry-oil centralized lubrication system for coal mining machine

Abstract

The invention belongs to the technical field of coal mining machines and provides an intelligent dry-oil centralized lubrication system for a coal mining machine. The intelligent dry-oil centralized lubrication system is used for carrying out automatic, reasonable and precise intelligent dry-oil centralized lubrication on friction pairs, such as a sliding shoe hinged pin shaft, an oil cylinder hinged pin shaft, a rocker arm hinged pin shaft and external traction bearings, of the coal mining machine. The intelligent dry-oil centralized lubrication system for the coal mining machine, provided by the invention, comprises a three-position four-way explosion-proof electromagnetic valve, a dry oil lubrication pump, a one-way valve, a filter, an explosion-proof pressure controller and a plurality of explosion-proof intelligent electromagnetic distributors. According to the system, hydraulic oil of 2MPa delivered from a hydraulic pump station drives a plunger of the dry oil lubrication pump to act through energizing / de-energizing the three-position four-way explosion-proof electromagnetic valve, so as to deliver lubricating grease, then, the lubricating grease passes through the one-way valve and the filter, then, sequentially enters all the explosion-proof intelligent electromagnetic distributors and then is delivered to all the friction pairs, and meanwhile, the pressure of the system is controlled by using the explosion-proof pressure controller, so that all heavy-loaded friction pairs of a rocker arm of the coal mining machine are subjected to automatic, quantitative and precise intelligent dry-oil centralized lubrication.

Description

technical field [0001] The invention belongs to the technical field of coal shearers, and in particular relates to an intelligent dry oil centralized lubrication system for coal shearers. Background technique [0002] When the coal shearer is cutting and walking, the friction pairs such as hinged pins and bearings have a huge load. The original lubrication for each friction pair is manual grease injection with a manual grease gun during equipment maintenance, which increases the labor of the operator. strength, and it is inevitable that some omissions are inevitable, not to mention that it is impossible to regularly and quantitatively supply grease to each friction pair, and dust will be brought into the bearing, which directly shortens the service life of each imported bearing and other friction pairs. When the lubrication failure of several lubrication points will directly lead to the damage of the friction pair, and the damage of the friction pair will often cause major a...

AI Technical Summary

Problems solved by technology

[0002] When the coal shearer is cutting and walking, the friction pairs such as hinged pins and bearings have a huge load. The original lubrication for each friction pair is manual grease injection with a manual grease gun during equipment maintenance, which increases the labor of the operator. strength, and it is inevitable that some omissions are inevitable, not to mention that it is impossible to regularly and quantitatively supply grease to each friction pair, and dust will be brought into the bearing, which directly shortens the service life of each imported bearing and other friction pairs.

When the lubrication of several lubrication points fails, it will directly lead to the damage of the friction pair, and the damage of the friction pair will often cause the occurrence of major accidents such as the shutdown of the coal shearer

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