Large inclination angle vertical shearer

Abstract

A large inclination angle vertical shearer comprises a machine body, power transmission chains, stretched arms, rollers and coiling rollers, wherein the machine body is composed of a plurality of case separation cavities, and the power transmission chains, the stretched arms, the rollers and the coiling rollers are arranged inside the case separation cavities. The lower portion of the machine body is provided with a sliding board, each power transmission chain comprises a motor main shaft, a main transmission wheel and a pair of secondary transmission wheels on each motor main shaft are meshed to drive a longitudinal front transmission shaft and a longitudinal rear transmission wheel to output power, a bevel gear at the tail end of each front transmission wheel drives a bevel gear shaft and a straight gear on the bevel gear shaft to rotate, a three-stage transmission gear and multi-stage transmission gear shafts are driven to rotate, therefore a tail-stage transmission gear shaft and the rollers on a semi-flexible coupling on the tail-stage transmission gear are driven to rotate, a tail end worm of a rear transmission shaft drive a worm shaft and the coiling rollers on the worm shaft to rotate. According to the technical scheme, the large inclination angle vertical shearer overcomes the defects that coal mining devices utilized by existing middle-small coal mines are only suitable for mining top-surface coal seams and side-surface coal seams of small inclination angle roadway structures, resolves the problem that structure bottom coal seams are abandoned when roadway inclination angles are larger than 25 DEG C, and is specially suitable for mining of the structure bottom coal seams of the middle-small coal mines when the roadway inclination angles are larger than 25 DEG C.

Description

technical field [0001] The invention relates to a vertical drum shearer with a large inclination angle. Background technique [0002] The number of existing small and medium-sized coal mines accounts for more than 90% of the total number of coal mines in the country, but the mining scale is small, the mining roadways are narrow, and the technical equipment is backward. Some coal mines even still use pneumatic picks for manual mining, and their coal mining efficiency is low. , the working environment is harsh, and personnel safety is even more difficult to guarantee; and it is even more helpless to mine the bottom coal seam of the steeply inclined roadway structure, resulting in a serious waste of a large amount of coal resources. It is a big problem; while mechanized coal mining has been fully used in small and medium-sized coal mines, the coal mining equipment is only suitable for mining the coal seam at the bottom of the small-inclination roadway structure, and the roadway...

AI Technical Summary

Problems solved by technology

[0002] The number of existing small and medium-sized coal mines accounts for more than 90% of the total number of coal mines in the country, but the mining scale is small, the mining roadways are narrow, and the technical equipment is backward. Some coal mines even still use pneumatic picks for manual mining, and their coal mining efficiency is low. , the working environment is harsh, and personnel safety is even more difficult to guarantee; and it is even more helpless to mine the bottom coal seam of the steeply inclined roadway structure, resulting in a serious waste of a large amount of coal resources. It is a big problem; while mechanized coal mining has been fully used in small and medium-sized coal mines, the coal mining equipment is only suitable for mining the coal seam at the bottom of the small-inclination roadway structure, and the roadway inclination is generally in the range of 18-25°; for the bottom coal seam with a large roadway inclination The coal seam structure accounts for a relatively large proportion in the small and medium-sized coal mines in the south. The mining roadway inclination angle is generally above 25°, and the largest inclination angle even reaches 30°; for the roadway coal seam structure with an inclination angle above 25°, there is no effective Coal mining machinery and equipment can be popularized and used; in addition, although the small coal cutter can adapt to the coal seam structure with an inclination angle of more than 25°, it can only mine the coal seam on the side of the roadway; there is no effective method for the development of the bottom coal seam with a large inclination angle of the roadway. Implementation of measures, so it can only be discarded and mined, resulting in a large amount of waste of coal resources, which seriously hinders the implementation and implementation of resource conservation and coal resource development and protection strategies

Images