Forced lubrication system for cutting speed reducer of tunneller

Abstract

The invention relates to excavating and mining of large-slope coal mine tunnels, in particular to a forced lubrication system for the cutting speed reducer of a tunneller and solves the problem that when a traditional tunneller works at a slope of above 23 degrees, the bearing at the high-speed end or the low-speed end of the cutting speed reducer cannot be lubricated. Through the adoption of the forced lubrication system, the bearing at the high-speed end or the low-speed end of the cutting speed reducer can be lubricated above the level of lubricating oil. In a large-slope tunnel, when the tunneller goes up a slope to cut a roof, the bearing at the low-speed end of the cutting speed reducer is below the level of lubricating oil and thus cannot be lubricated; when the tunneller goes down the slope and the cutting head performs bottom sweeping, the bearing at the high-speed end of the cutting speed reducer is below the level of the lubricating oil and thus cannot be lubricated. A lubricating pump is driven by the hydraulic motor of a hydraulic system; when a cutting arm goes up and down, or rotates, lubricating oil at the bottom of the cutting speed reducer is pumped to the bearing cavities at the high-speed end and the low-speed end of the cutting speed reducer so as to provide forced lubrication for the bearings at the high-speed end and the low-speed end.

Description

technical field [0001] The invention relates to excavation and mining of roadways in large-slope coal mines, in particular to a forced lubrication of cutting reducer of roadheader and its control system. The hydraulic system controls the lubricating oil circulation pump to provide lubricating oil for the bearings at the high-speed end or low-speed end of the cutting speed reducer of the roadheader. , When mining up and down slopes in large-slope roadways, the bearings at the high-speed end or low-speed end of the cutting reducer can be effectively lubricated above the lubricating oil level and the temperature rise caused by circulation can be effectively controlled. Background technique [0002] At present, due to the complex roadway conditions of various coal mines, some coal mine roadway slopes are above 18°, so that when the roadheader is mining, the high-speed end and low-speed end bearings of the cutting reducer cannot be effectively lubricated, causing the reducer beari...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a forced lubrication system for the cutting part reducer of the roadheader, which solves the problem that the bearings at the high-speed end or low-speed end of the cutting part reducer cannot be lubricated when the traditional excavation is mining in a large-slope roadway

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