Coal wall side crushing device of coal mining machine with large mining height

A technology of crushing device and shearer, which is applied in grain processing and other directions, can solve the problems of working face blockage, roof fall, and chipping, and achieve the effect of small occupied space, accurate crushing position, and accurate positioning.

CN107597242AActive Publication Date: 2018-01-19CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-01-19

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Abstract

The invention discloses a coal wall side crushing device of a coal mining machine with the large mining height. Each crushing mechanism (100) comprises a main frame (110), a large swing oil cylinder (120), small swing oil cylinders (130), a cantilever (140) and crushing hammers (150). Output flanges I (121) of the large swing oil cylinders are connected to the lower ends of the main frames. The cantilevers are connected to the right ends of the main frames. The small swing oil cylinders are mounted on the right sides of the cantilevers. The crushing hammers are connected with output flanges II(131) of the small swing oil cylinders. The coal wall side crushing device further comprises a gangue blocking device (200) and height-adjustment oil cylinders (300). The gangue blocking device is connected to the cylinder walls of the large swing oil cylinders through flanges (122). Piston rods (310) of the height-adjustment oil cylinders are hinged to the gangue blocking device. Cylinder barrels (320) of the height-adjustment oil cylinders are hinged to a fixed seat mechanism (400) located at the upper end of a rack of the coal mining machine. The bottom of the gangue blocking device is hinged to the fixed seat mechanism. The coal wall side crushing device can crush large chunks of coal rock collapsing on the coal rock side wall efficiently, the crushing range is large, the crushing position is accurate, and adjustment is easy.
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Description

technical field

[0001] The invention relates to a coal shearer, in particular to a coal arm side crushing device of a large mining height coal shearer, which belongs to the technical field of underground coal mining equipment. Background technique

[0002] Shearers are one of the important equipments to realize the mechanization and modernization of coal mine production. They are mainly divided into four types: sawing type, planing type, drilling type and milling type. Different types of shearers are selected according to different geological conditions. In recent years, coal mines with thick coal seams and extra-thick coal seams have been explored successively in various places. This kind of coal mine must use large mining and high coal mining technology. High efficiency, low requirements, low cost, simple coal mining process, short roadway excavation length and small maintenance; compared with the fully mechanized mining face, large mining height produces fine coal particl...

Examples

Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] Such as Figures 1 to 5As shown, a large mining height shearer coal wall side crushing device, the large mining height coal wall side crushing device A is installed on the upper end of the shearer main frame B, wherein the crushing mechanism 100 includes the main frame 110, large swing oil cylinder 120, small swing oil cylinder 130, cantilever 140 and breaker 150, output flange I121 of large swing oil cylinder 120 is connected to the lower end of main frame 110, cantilever 140 is connected to the right end of main frame 110, small swing oil cylinder 130 Installed on the right side of the cantilever 140, the breaker 150 is connected to the output flange II131 of the small swing cylinder 130; it also includes a gangue blocking device 200 and a height adjustment cylinder 300, and the gangue blocking device 200 is connected to the large swing cylinder through the flange ...