EARTH PRESSURE BALANCE SHIELD MACHINE WITHOUT CUTTER DISK

摘要

An earth pressure balance shield machine without cutter disk is provided. An earth pressure balance cabin partition comprises an earth pressure balance cabin moving partition (30) and an earth pressure balance cabin fixed partition (31). A cutter (1) is mounted in the front of a front shield (13) and comprises cutting heads (11) and cutting teeth (12) distributed on the cutting heads (11). Each cutting head (11) is fixedly connected with one end of a cutter shaft (2), and the other end of the cutter shaft (2) is connected with a power transmission device. The power transmission device comprises a transfer case (5), a speed reducer (6) and a driving motor (7), wherein the speed reducer (6) and the driving motor (7) are connected with the transfer case (5). The front end of the transfer case (5) in the power transmission device on the upper half portion of the shield machine is fixed onto the earth pressure balance cabin moving partition (30). The speed reducer (6) and the driving motor (7) which are connected with the transfer case (5) are supported by a sliding device, and the rear of the sliding device is connected with a retractable cylinder (26). The earth pressure balance shield machine without cutter disk has the advantages of high cutting efficiency, balanced service life, high directional construability and high adaptability to cross sections of tunnels.