公开(公告)号：US3860291A

公开(公告)日：1975-01-14

申请号：US41271573

申请日：1973-11-05

Applicant: DRESSER IND

Inventor： RAUCH GLENN A ,  HESS ROBERT E

IPC: E21C27/24 ,  E21C35/20

CPC classification number: E21C35/20 ,  E21C27/24

Abstract: A gathering structure for use on the mining head of a mining machine. The mining head includes a rotary drum having helical auger flights with cutter bits mounted on their periphery. A back up panel is disposed on the mining head just rearward and parallel to the rotary drum. A gathering head is located beneath the mining head. The gathering head includes front, vertical dozer blades on each side of a central conveyor throat. The dozer blades have their bottom edge at the floor and their upper portion extends upwardly to overlap the lower portion of the backup panel. The backup panel and dozer blade cooperate to form a continuous vertical wall behind the helical flights of the rotary drum. The mine face forms a corresponding wall in front of the helical flights. The loading of the cut mined material is achieved by the helical auger flights working in conjuncture with the backup panel and dozer blades and the mine face. The panel and dozer blades are positioned immediately behind the outer helical auger sections so that with the mine face they form the walls of a screw conveyor which moves the coal to the center of the machine and onto a small pitch mat chain conveyor disposed in the central conveyor throat. The mat chain conveys the material rearwardly to conventional flight conveyors. During the mining operation, the backup panel is moved up and down with the rotary drum relative to the dozer blade. To prevent spillage of mined material behind the dozer blade as the rotary drum is moved, the upper portion of the dozer blade is hinged and spring loaded to continuously hold it firmly against the backup panel.

Abstract translation: 用于采矿机采矿头的采集结构。 采矿头包括具有螺旋螺旋钻架的旋转滚筒，其切割头安装在其周边。 备用面板位于采矿头后方，并且平行于旋转滚筒。 采集头位于采矿头下方。 收集头包括中央输送机喉部两侧的前部，垂直推土铲。 推土铲叶片的底部边缘在地板上，并且其上部部分向上延伸以与支撑板的下部重叠。 后备板和推土铲协作以在旋转滚筒的螺旋螺旋之后形成连续的垂直壁。 矿面在螺旋形航行前形成相应的墙壁。 切割开采材料的装载是通过与备用板和推土机叶片和矿井面相结合的螺旋螺旋桨飞行器实现的。 面板和推土机叶片位于外螺旋螺旋部分的正后方，因此在矿井面上，它们形成螺旋输送机的壁，该螺旋输送机将煤移动到机器的中心并移动到设置在中心的小间距垫链输送机 输送喉。 垫子链将材料向后传送到常规的飞行输送机。 在采矿作业期间，后备板与旋转鼓相对于推土铲刀片上下移动。 为了防止在旋转鼓移动时，推土铲后面的开采材料溢出，推土机叶片的上部被铰接并弹簧加载，以将其牢固地保持在支撑板上。