A high-efficiency coal mining device

Abstract

A high-efficiency coal mining device belongs to the technical field of coal seam mining. The laser distance measuring device is set on the end face of the main shaft, which is connected to the central processing unit of the wireless remote control device; the high-frequency punching device is set at the front end of the cutting tooth, including a hydraulic pump, the lower end of which is connected to the oil tank, and the upper end is passed through the hydraulic pressure. The control valve is connected to the external interface; the end of the oil inlet can slide in the slot; the oil inlet bearing is arranged between the oil inlet end cover and the oil inlet; the hydraulic cylinder is arranged outside the rotary valve shell, punching The head is installed inside the hydraulic cylinder; the oil outlet bearing is arranged between the oil outlet end cover and the rotary valve; The port is connected with the oil inlet chamber, and counter force teeth are set inside the rotary valve casing; the oil inlet chamber is connected with the oil inlet port, the oil unloading chamber is connected with the oil guide shell, and the oil guide shell is connected with the oil tank through the oil outlet conduit. The hydraulic cylinders are connected to the central processing unit.

Description

technical field [0001] The invention belongs to the technical field of coal seam mining, and in particular relates to a high-efficiency coal mining device, which is mainly used for unloading and rock breaking in hard rock drilling. The coal mining device can quickly give a certain depth of impact hole in the pre-contact area before the cutting head of the coal shearer cuts the surface of the coal seam for the first time, thereby forming a local unloading area, which contributes to the low energy consumption, low wear and tear of the cutting head. Highly efficient rock breaking. Background technique [0002] At present, when underground coal mines are mined, due to the presence of high-hardness coal or rock formations in some coal seams, the cutting teeth of the shearer directly collide with the coal seam when rotating at high speed, resulting in failure forms such as fracture and shedding of the cutting head; in continuous During the working process, the staff often need to...

AI Technical Summary

Problems solved by technology

[0002] At present, when underground coal mines are mined, due to the presence of high-hardness coal or rock formations in some coal seams, the cutting teeth of the shearer directly collide with the coal seam when rotating at high speed, resulting in failure forms such as fracture and shedding of the cutting head; in continuous During the working process, the staff often need to stop to check and replace the damaged cutting teeth, which greatly hinders the progress of the project and increases the construction cost in the coal mining process

In the prior art, technical means that can reasonably solve such problems have not been found, and at the same time, there is no corresponding better coal mining equipment to replace

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