Apparatus for drawing the shearers
AssigneeTaiheiyo Engineering Inc.
InventorsShigeo Nakajima, Hajime Endo
Life of this patent
Estimating the term…
Abstract
Apparatus for drawing shearers comprises a conveyor on which the shearers move with sledges interposed therebetween and which is arranged along a long-walled pit face of a coal mine shearers drawing cable is arranged in fixing members which are arranged on the conveyor, and a pair of means are provided for releasing and fixing the cable from and into the fixing members, the means being arranged adjacent to the sledges and the cable located between the cable releasing and fixing means being engaged with a cable driving means housed in each of the shearer bodies, wherein a drawing force is applied only to the cable located between the cable releasing and fixing means when the driving means is rendered operative.
Claims10
Apparatus for drawing shearers along a long-walled pit face of a coal mine comprising a conveyor arranged along the pit face of the coal mine, a shearer mounted to move along said conveyor, cable fixing means arranged along the conveyor, a cable means disposed along said cable fixing means, said cable means being engageable by said cable fixing means to preclude relative longitudinal movement between the cable means and the cable fixing means, driving means on said shearer engaging said cable means to drive said shearer along said conveyor, and guide wheel means on said shearers and engaging said cable means, said guide wheel means guiding the cable means between said driving means and said cable fixing means such that said cable means has an operational cable portion which extends between the cable fixing means and the driving means, whereby when the shearer drawing force is applied by said driving means to said cable means such drawing force is applied only to said operational cable portion.
Apparatus according to claim 5, wherein said guide wheel means are rotatably mounted on said projections.
Dependencies are inferred from the claim text.