The invention discloses a limited micro-space multifunctional piling
machine, and belongs to the technical field of piling machines. The limited micro-space multifunctional
pile machine comprises a main
machine assembly, a drilling rig
assembly, a power head
assembly, a multi-channel telescopic
drill rod and a process
drill bit, and the power head assembly comprises a box body, a telescopic driving
hydraulic motor, a
drill rod driving
hydraulic motor, a multi-channel
flow divider, a drill rod rotating joint and a screw driving joint, and the telescopic driving
hydraulic motor, the drill rod driving hydraulic motor, the multi-channel
flow divider, the drill rod rotating joint and the screw driving joint are installed on the box body. The multi-channel telescopic drill rod is controlled to rotate and stretch through the dual-drive power head, so that the overall height of the
pile machine can be effectively reduced, low-clearance
pile foundation construction can be achieved, multiple fluid channels are constructed in the multi-channel telescopic drill rod, the telescopic drill rod can be matched with drill bits of various technologies, and the construction efficiency is improved. Various pile foundation construction technologies are completed on one pile machine, and the blank of a multifunctional pile machine is filled. In addition, due to the design that the multi-channel
shunting power head is matched with the multi-channel telescopic drill rod, rod connecting operation can be reduced or not needed, construction complexity is reduced, and construction efficiency is improved.