Efficient blocking coal shoveling device

Abstract

The invention relates to mine coal extraction equipment and specifically relates to an efficient blocking coal shoveling device. The coal shoveling device comprises a device body and an impact shovel mechanism, wherein the device body comprises a rack, the impact shovel mechanism comprises a shovel head and an impacting device, the shovel head includes shovel teeth and a fixing part, the shovel teeth are installed on the fixing part, an impact stroke guide rod is arranged on the rear portion of the fixing part and is in a sliding connection with a guide sleeve, the guide sleeve is arranged on the impacting device and / or the rack, the impacting device can impact the impact stroke guide rod, an impacting action enables the shovel head to have a one-time completion of a coal blanking and a surface cleaning, and the impact shovel mechanism is arranged on the device body which drive a whole device to move. By means of the efficient blocking coal shoveling device, extracted coals are not subjected to a sufficient crushing, so that blocking material rate is high, power consumption and coal dusts are small, work environment is good, a continuous coal extraction and the one-time completion of the coal blanking and the surface cleaning are achieved, and a large amount of energy is saved.

Description

technical field [0001] The invention relates to a mine coal mining equipment, in particular to a high-efficiency block-forming coal shovel. Background technique [0002] The currently widely used mine coal mining equipment is mainly the drum shearer. Its working principle is milling type blanking, which determines that the crushing of this coal mining method is relatively large, especially in the state of compressive stress, which consumes a lot of energy, reduces productivity and block rate, and produces a lot of dust during the crushing process, causing Problems such as the harsh mining environment and potential safety hazards have been eliminated. To sum up, the currently commonly used drum shearer mainly has the following defects in the process of use: (1) low lump material rate; (2) much dust, polluting the environment; (3) milling of the cutting part is relatively broken, power consumption Larger, there is a lot of resource waste, low work efficiency, and high cost. ...

AI Technical Summary

Problems solved by technology

Its working principle is milling type blanking, which determines that the crushing of this coal mining method is relatively large, especially in the state of compressive stress, which consumes a lot of energy, reduces productivity and block rate, and produces a lot of dust during the crushing process, causing The poor mining environment and other problems and potential safety hazards

To sum up, the currently commonly used drum shearer mainly has the following defects in the process of use: (1) low lump material rate; (2) much dust, polluting the environment; (3) milling of the cutting part is relatively broken, power consumption Large, there is a lot of waste of resources, low work efficiency, high cost

Its existing defect is: when one impact arm fixes an impact head, an impact head has no wide shovel surface and thus cannot rush out of a wider coal mining face, so the coal mining body cannot pass through continuous coal mining. When driving multiple impact heads for reciprocating impact, the multiple impact heads need to be set on the connecting rod hinged with the crankshaft. The rotation of the crankshaft drives the multiple impact heads to reciprocate impact, and the multiple impact arms form a long length perpendicular to the crankshaft. The multiple shearing and twisting force arms of the rod, the reaction force of impacting the coal seam, etc. directly shear and twist the connecting rod perpendicular to the hinged joint with the crankshaft, resulting in the transmission mechanism being easily deformed and broken and unable to work continuously. In addition, the impact head There is no shape and structure for large-scale cleaning of the coal mining face at the rear. The arrangement and shape of its multiple impact heads will cause excessive resistance during coal mining. When there are multiple impact heads, the structure is complex and difficult to operate and control, and there are too many reaction points and damage The frequency is high, and the maintenance time is longer than the working time in actual use, resulting in a great waste of manpower, material resources, etc., so the equipment is difficult to use

The power part of the equipment is a hydraulic cylinder, and the working part is installed at the front end of the hydraulic cylinder. The hydraulic cylinder drives the working part to extend or retract in the axial direction. The working part is a plurality of impact heads, but the arrangement of the plurality of impact heads has not formed Therefore, it is impossible to clean the coal seam, and the coal mining width is not enough, and the machine body cannot pass through. If the coal mining head is widened according to its structure, the resistance will be too large, making it difficult for the shearer to move forward continuously. Coal mining; there is no guiding mechanism at the rear of multiple coal mining heads, so there is no function of concentrating on one part to control multiple shovel teeth, so it is difficult to realize coal mining. The structure of this equipment is not conducive to the absorption and decomposition of reaction force , when used in coal mining, multiple impact heads have complex structures, difficult operation and control, too many reaction force points and high damage frequency, in actual use, the maintenance time is longer than the working time, resulting in a great waste of manpower and material resources, etc., so the equipment has not been used. Used on coal mining, only for crushing

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