Permanent-magnet direct-drive coal mining machine rocker arm suitable for steeply-inclined-angle coal seam and using method thereof

Abstract

The invention relates to a permanent-magnet direct-drive coal mining machine rocker arm suitable for a steep-dip-angle coal seam and a using method of the permanent-magnet direct-drive coal mining machine rocker arm. The permanent-magnet direct-drive coal mining machine rocker arm comprises a rocker arm shell, a permanent-magnet motor and a clutch device, the connecting sleeve is connected to an outer spline of the spline sleeve, the first gland buckles the connecting sleeve in the axial direction and is fixedly connected with the spline sleeve through a bolt, the cutting spiral roller is fixedly installed on the connecting sleeve, the permanent magnet motor is in coaxial transmission with the spline sleeve through a clutch device, and a bearing is arranged between the spline sleeve and the rocker arm shell. When the clutch device is closed, the permanent magnet motor is powered on to directly output low-speed large torque, and the clutch device transmits power to drive the cutting spiral roller to rotate to cut coal. And when the clutch device is separated, locking of the transmission system of the coal mining machine is realized. Permanent magnet direct drive is adopted, parts needing to be lubricated are few, lubricating oil is always in the rotary body, the lubricating effect is good, the fault rate can be greatly reduced, and safe, smooth and reliable mining of the steeply-inclined coal seam is facilitated.

Description

technical field [0001] The invention relates to the technical field of shearers, in particular to a rocker arm of a permanent magnet direct-drive shearer suitable for steeply inclined coal seams and a method for using the same. Background technique [0002] At present, most of the common shearer rocker arm deceleration mechanisms adopt parallel shaft multi-stage transmission, which is driven by AC motor + multi-stage spur gear deceleration + planetary mechanism deceleration + cutting drum to cut coal. The reduction mechanism with this arrangement has many transmission chains and low transmission efficiency. Especially when it is applied to an inclined working surface of 45 degrees and above, the bearings and gears in the transmission system at high positions cannot be well lubricated. According to the practice of many years of use It is proved that even if a lubricating pump is configured for auxiliary forced lubrication, the effect is still poor and the failure rate is high...

AI Technical Summary

Problems solved by technology

The reduction mechanism with this arrangement has many transmission chains and low transmission efficiency. Especially when it is applied to an inclined working surface of 45 degrees or above, the bearings and gears at high positions in the transmission system cannot be well lubricated. According to the practice of many years of use It proves that even if the lubricating pump is configured for auxiliary forced lubrication, the effect is still poor and the failure rate is high

Therefore, the existing shearer rocker arm deceleration mechanism cannot meet the requirements for safe and reliable mining of steeply inclined coal seams.

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