Earth Pressure Balance Shield Machine without Cutter Disk

摘要

An EPB shield machine without disc cutter, which includes a partition unit formed by a moveable partition member (30) and a stationary partition member (31), a front shield unit (13) including a cutting unit (1) with cutting head (11) and cutting teeth (12), a shaft member (2) connected to the cutting head (11) and a power transmission unit formed by a transfer case (5), a reducer (6) and a driving motor (7). In the power transmission unit at an upper portion of the machine, the transfer case (5) is fixedly to the moveable partition member (30), a sliding arrangement supports the reducer (6) and the driving motor (7), which are connected to the transfer case (5, and a telescopic cylinder (26) is connected to the sliding arrangement. The machine has advantages of high cutting efficiency, balanced service life, high directional construability and high adaptability to tunnel cross section.