11-03-2009 дата публикации
Номер: CN0101382040A
Принадлежит:
The invention discloses a major diameter simultaneous casing while drilling drill. A platform (5) is arranged on a caterpillar walking chassis (7), and a driving cab (10), a power system (4), a hydraulic system (17) and a control system (8) are arranged on the platform (5). A pile holder (13) and a support bar thereof are also arranged on the platform (5), and a vertical holder winch (2) arranged on the platform (5) corresponds to the pile holder (13). A power head (20), an auger stem assembly (15) of the pile holder (13), a soil storage box (19) and a simultaneous casing while drilling driving device (16) are arranged on the pile holder (13) in a sliding way, a main hoist assembly and an auxiliary hoisting assembly (8) are arranged on the platform (5), and a pile controller (12) corresponding to the auger stem assembly (15) is arranged in front of the caterpillar walking chassis (7). The major diameter simultaneous casing while drilling drill has full hydraulic drive, a compact structure ...
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