Traction box for thin coal seam coal cutter

Abstract

The invention discloses a traction box for a thin coal seam coal cutter. The traction box comprises a box body, a driving motor and a traction transmission mechanism; the output end of the traction transmission mechanism is connected with a secondary planet decelerating mechanism, and the output end of the secondary planet decelerating mechanism is connected with a toothed rail wheel transmissionmechanism; a toothed rail wheel assembly is mounted on the toothed rail wheel transmission mechanism, and the traction transmission mechanism comprises a traction flexible shaft, a first gear shaft assembly, a second gear shaft assembly, an idler shaft assembly and a first spline shaft assembly; the secondary planet decelerating mechanism comprises an inner gear ring, a second spline shaft, a first planet carrier and a second planet carrier; and a plurality of primary planet wheels are mounted on the first planet carrier, and the second planet carrier is provided with a plurality of secondaryplanet wheels and an output shaft which is laid coaxially with the second spline shaft. The structure is simple, the coal cutter can be driven to achieve traction movement, the machine height H of thecoal cutter can be decreased, and the using requirement of the thin coal seam coal cutter can be met.

Description

technical field [0001] The invention belongs to the technical field of coal shearers, and in particular relates to a traction box of a thin coal seam shearer. Background technique [0002] The working principle of the traction box of the coal shearer is: the drive motor transmits power to the rack wheel through the traction transmission mechanism at the input end and the planetary reducer assembly at the output end, and the rack wheel meshes with the pin row of the scraper conveyor to drive The shearer reciprocates on the scraper conveyor. The planetary reducer at the output end of the traction box plays a key role in transmitting torque, changing transmission ratio, splitting power and increasing bearing capacity. At present, the deceleration box of the existing traction box is located directly above the middle plate of the scraper conveyor, resulting in an increase in the thickness of the shearer body, resulting in an excessively high machine surface height H of the shear...

AI Technical Summary

Problems solved by technology

At present, the deceleration box of the existing traction box is located directly above the middle plate of the scraper conveyor, resulting in an increase in the thickness of the shearer body, causing the height H of the shearer to be too high, and making the existing traction The box has poor adaptability to thin coal seam mining, therefore, a traction box for thin coal seam shearer should be provided

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