Bottom adjusting anti-skid device for hydraulic support of large-dip-angle fully mechanized coal mining face of coal mine
The utility model relates to a bottom adjusting anti-skid device for a hydraulic support of a large-dip-angle fully mechanized coal mining face of a coal mine, and the hydraulic support comprises a base which is sequentially arranged along the transverse direction and is inclined downwards, and two...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a bottom adjusting anti-skid device for a hydraulic support of a large-dip-angle fully mechanized coal mining face of a coal mine, and the hydraulic support comprises a base which is sequentially arranged along the transverse direction and is inclined downwards, and two bottom adjusting jacks which are arranged on the base and extend downwards along the extension direction of the base, the two bottom adjusting jacks are arranged in the longitudinal direction and connected with the corresponding operating valves respectively, and the extending ends of the two bottom adjusting jacks are hinged to bottom adjusting beams extending in the longitudinal direction. In the large-dip-angle working face, the base needing to be moved moves forwards by taking the lower square base as a supporting point through the bottom adjusting jack and the bottom adjusting beam, so that the anti-skid problem of the hydraulic support is solved; and after the support is moved, the extension lengths of the tw |
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