A shearer lubrication system and a method for lubricating the cutting part of a coal shearer using the system

Abstract

The invention discloses a coal shearer lubrication system, which includes an oil inlet passage and an oil return passage; the oil inlet passage includes an oil tank 11 connected in sequence through an oil pipe, a hydraulic pump 13 arranged in the oil tank 11, a reversing The valve 15 and the throttle valve 16, and the oil pipes arranged in sequence along the first to third driving parts starting from the throttle valve 16, passing through the shaft hole of the secondary bevel gear, and ending at the third driving part 32, And a spraying element is arranged at the end of the oil pipe; the oil return path includes an oil pipe arranged in sequence along the third to first driving parts and flows back to the oil tank from the third driving part. The lubricating system of the shearer performs forced lubrication on the third driving part, thereby lubricating the cutting part, reducing the wear of the internal gear, and making the shearer run smoothly in coal mining. Also disclosed is a method for lubricating the cutting part of the coal mining machine by utilizing the lubrication system of the coal mining machine, which can maintain the lubricating effect on the cutting part before the oil temperature reaches the set maximum value.

Description

technical field [0001] The invention belongs to the technical field of coal mining equipment, in particular to a coal shearer lubrication system and a method for lubricating a coal shearer cutting part by using the system. Background technique [0002] At present, coal shearers in coal mining usually use splash lubrication to lubricate the meshing gears of the cutting part. However, due to splash lubrication, the lubricating oil is splashed on the meshing gears through the high-speed rotation of the gears in the chassis, and then through mutual The meshing is transmitted to each gear to achieve lubrication. This lubrication method cannot achieve the lubricating effect when the shearer is running at low speed, and the cutting part on the front rocker arm of the shearer is often in a lifted state, and the lubricating oil is not easy to transfer from the low place to the At high places, the gears in the cutting part are insufficiently lubricated, and the long-term lack of oil i...

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Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a coal shearer lubrication system for solving the problem of insufficient lubrication of cutting gears

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