High-efficiency blocking coal shovel

Abstract

The invention relates to coal mining equipment and specially, relates to a high-efficiency blocking coal shovel. The high-efficiency blocking coal shovel comprises a shovel body. The shovel body comprises a frame. The high-efficiency blocking coal shovel also comprises an impulsion shovel mechanism. The impulsion shovel mechanism comprises a shovel head and an impulsion device. The shovel head comprises shovel teeth and a fixing part. The shovel teeth are installed on the fixing part. A rear part of the fixing part is provided with an impulsion stroke guiding mechanism. The impulsion stroke guiding mechanism is sildingly connected to a guiding sleeve. The guiding sleeve is arranged on the impulsion device and / or the frame. The impulsion device impacts the impulsion stroke guiding mechanism. Only through one impulsion process, the shovel head can complete both coal falling and surface cleaning. The impulsion shovel mechanism is arranged on the shovel body. The shovel body drives the whole high-efficiency blocking coal shovel to walk. Coal mined by the high-efficiency blocking coal shovel is not broken fully. The high-efficiency blocking coal shovel has a high blocking rate and low power consumption, produces a small quantity of coal dust, provides a good work environment, realizes continuous coal mining, synchronously completes both coal falling and surface cleaning, and saves a mass of energy.

Description

Technical field [0001] The invention relates to a mine coal mining equipment, in particular to an efficient lump coal shovel. Background technique [0002] The current widely used mining equipment is mainly drum shearer. Its working principle is milling-type blanking, which determines that this coal mining method has relatively large crushing, especially under compressive stress, which consumes a lot of energy, reduces productivity and lump rate, and generates a lot of dust during the crushing process. Problems such as the harsh mining environment and potential safety hazards are eliminated. In summary, the currently commonly used drum shearers mainly have the following defects in the use process: (1) Low lump rate; (2) Dust and pollute the environment; (3) The cutting part is milled and consumes power. Larger, there is a lot of waste of resources, low work efficiency, and high cost. In order to obtain lump coal, more than 55% of coal mines currently use blast mining. Blast mi...

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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