发明名称 CONTINUOUS MINER HAVING A SUMPING FRAME
摘要 A continuous miner including a support frame having a support frame front, and a sumping frame mounted on the support frame for forward and rearward movement relative to the support frame. The sumping frame has a sumping frame front, and the miner further includes a cutting drum pivotally mounted on the sumping frame, the cutting drum being positioned near the sumping frame front. The miner also includes a gathering head for gathering mined minerals pivotally mounted on the sumping frame front, and a hydraulic cylinder for pivoting and fixing the gathering head relative to the sumping frame in both the raising and lowering directions. The continuous miner also includes a first drilling platform pivotally mounted on the support frame front, a second drilling platform pivotally mounted on the support frame front and spaced apart from the first drilling platform, a hydraulic cylinder for pivoting and fixing the first drilling platform relative to the support frame independently of the second drilling platform, and a hydraulic cylinder for pivoting and fixing the second drilling platform relative to the support frame independently of the first drilling platform.
申请公布号 US2009066148(A1) 申请公布日期 2009.03.12
申请号 US20070852280 申请日期 2007.09.08
申请人 JOY MM DELAWARE, INC. 发明人 WILLISON JOHN E.
分类号 E21C27/12 主分类号 E21C27/12
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