公开(公告)号：WO02004786A1

公开(公告)日：2002-01-17

申请号：PCT/US2001/020174

申请日：2001-06-25

IPC: E21C27/12 ,  E21C31/08

CPC classification number: E21C27/124 ,  Y10T403/7021 ,  Y10T403/7051

Abstract: An extendable rotor arm (23) for a mining machine. The rotor arm rotates about an axis parallel to the direction of machine motion, and has an extendable portion (35) which extends perpendicular to the axis of rotation to vary the width of mining. The extendable portion is mounted on a shaft (31) and is fastened with keys (49) to prevent rotation and a sleeve (33) to reduce wear to the shaft.

Abstract translation: 一种用于采矿机的可伸缩转子臂（23）。 转子臂围绕平行于机器运动方向的轴线旋转，并且具有垂直于旋转轴线延伸的可延伸部分（35），以改变采矿的宽度。 可延伸部分安装在轴（31）上，并用键（49）固定以防止旋转，并且套筒（33）减小对轴的磨损。

公开(公告)号：WO2019149354A1

公开(公告)日：2019-08-08

申请号：PCT/EP2018/052413

申请日：2018-01-31

Applicant: SANDVIK MINING AND CONSTRUCTION G.M.B.H.

Inventor： GRIEF, Ralf ,  HASLER, Stefan ,  IRREGGER, Karl ,  STEINER, Stefan ,  WEINBERGER, Gerhard

IPC: E21C27/12 ,  E21C27/22 ,  E21C27/24 ,  E21C31/02

CPC classification number: E21C27/22 ,  E21C27/124 ,  E21C27/24 ,  E21C31/02

Abstract: A heading machine includes first and second rotating cutting heads having respectively an axis of rotation extending substantially in a longitudinal direction of the machine, a first cutting roller having an axis of rotation extending substantially horizontal and transverse to the longitudinal direction of the machine, and a further cutting device supported on the cutting frame and adapted to cut off the cusps of unmined material left on side wall. The machine further includes a side stabilizer, and can cut a rectangular profile without leaving cusps left on the side wall.

公开(公告)号：WO2018035425A1

公开(公告)日：2018-02-22

申请号：PCT/US2017/047539

申请日：2017-08-18

Applicant: JOY MM DELAWARE, INC.

Inventor： DAHER, Nagy ,  BOYD, Richard ,  BAGNALL, Edward ,  REEVES, Stuart

IPC: E21C25/16 ,  E21C25/18 ,  E21C27/12 ,  E21C27/22

CPC classification number: E21C31/08 ,  E21C25/06 ,  E21C25/18 ,  E21C27/02 ,  E21C27/124 ,  E21C29/22 ,  E21C31/12 ,  E21C35/20

Abstract: A cutting assembly for a rock excavation machine including a frame. The cutting assembly includes a boom supported on the frame and a cutting device. In some aspects, the boom includes a first portion and a second portion, and the first portion includes a first structure and a second structure slidable relative to the first structure. The second portion includes a first member pivotably coupled to the second structure, and a second member pivotably coupled to the first member. The cutting device is supported on the second member. In some aspects, a material handling device is supported independently of the boom and movable between a retracted position and an extended position independent of the boom.

Abstract translation: 用于包括框架的岩石开挖机的切割组件。 切割组件包括支撑在框架上的吊杆和切割装置。 在一些方面，吊杆包括第一部分和第二部分，并且第一部分包括第一结构和相对于第一结构可滑动的第二结构。 第二部分包括可枢转地联接到第二结构的第一构件和可枢转地联接到第一构件的第二构件。 切割装置支撑在第二构件上。 在一些方面，材料处理装置独立于悬臂而被支撑，并且可以在缩回位置和伸出位置之间移动，而与悬臂无关。