公开(公告)号：US4088371A

公开(公告)日：1978-05-09

申请号：US764632

申请日：1977-02-01

申请人： Maurice K. LeBegue ,  Charles R. Herron

发明人： Maurice K. LeBegue ,  Charles R. Herron

IPC分类号： E21C27/24 ,  E21C35/00

CPC分类号： E21C27/24 ,  E21C35/00

摘要： A continuous mining machine is propelled on endless crawler tracks and includes a body portion with a boom extending forwardly therefrom. The boom rotatably supports a drum having peripherally extending cutting elements. A boom stabilizer mounted on the boom includes a plate member pivotally connected at one end to the boom rearward of the drum. A piston cylinder assembly is pivotally mounted on the boom member and includes an extensible piston rod that is pivotally connected to the opposite end of the plate member. Extension of the piston rod pivots the plate member upwardly to a preselected height where the plate upper surface lies on a line tangent to the cutting path of the cutting elements at the top of the drum. When the drum is positioned adjacent the mine roof for sumping into the mine face, the stabilizing plate abuts the mine roof with the cutting elements displaced from the mine roof. As the drum is sumped forward the stabilizing plate prevents the drum from climbing the face into the mine roof. Thus, the drum drive motors are not overloaded by the drum simultaneously cutting the mine roof and face, and a preselected mine roof height is maintained during the mining operation.

摘要翻译： 连续采矿机在无级履带上被推进，并且包括具有从其向前延伸的悬臂的主体部分。 吊臂可旋转地支撑具有外围延伸的切割元件的滚筒。 安装在起重臂上的悬臂稳定器包括一个板，其一端在鼓的后方枢转地连接到悬臂上。 活塞气缸组件枢转地安装在悬臂构件上，并且包括可伸缩的活塞杆，其可枢转地连接到板构件的相对端。 活塞杆的延伸将板构件向上枢转到预选高度，其中板上表面位于与滚筒顶部处的切割元件的切割路径相切的线上。 当鼓定位在矿山顶部附近以进入矿面时，稳定板与矿顶相接，切割元件从矿顶移动。 当滚筒向前倾斜时，稳定板可防止滚筒从表面进入矿顶。 因此，鼓驱动马达不会由滚筒同时切割矿顶和面而过载，并且在采矿作业期间保持预选的矿顶高度。