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Drilling tool for construction of large-diameter multi-layer mutual shearing mixing pile
The invention relates to the technical field of stirring drilling tools, in particular to a drilling tool for construction of a large-diameter multi-layer mutual shearing stirring pile, which comprises an outer rod, an inner rod, at least two stirring wings and digging and cutting wing plates, at least one inner rod slurry passing channel is formed in the inner rod; the at least one stirring wing is radially distributed on the outer side wall of the central shaft of the outer rod; at least one stirring wing is radially distributed on the outer side wall of the center shaft of the inner rod, the stirring wings located on the same layer rotate in the same direction along with the outer rod or the inner rod, at least one fixed connecting point is arranged between the stirring wings and the rod pieces rotating in the same direction, and when the stirring wings are connected with the rod pieces rotating in the opposite direction at the same time, the stirring wings rotate in the same direction. The stirring wings are rotationally connected with the rod pieces; and the digging and cutting wing plate is arranged at the bottom of the inner rod or the bottom of the outermost stirring wing. The stirring device has the advantages that the problems that the stirring area is limited and the mutual shearing effect of the stirring wings is poor due to the fact that the tracks of the stirring wings are consistent are solved, soil disturbance in a larger range can be achieved, and the effect that stirring is more sufficient and more uniform is achieved.
本发明涉及搅拌钻具技术领域，一种用于大直径多层互剪搅拌桩施工的钻具，包括外杆、内杆、至少两个搅拌翼和掘削翼板；内杆中至少设置有一条内杆走浆通道；至少一个搅拌翼呈径向辐射状分布在外杆中心轴的外侧壁上；至少一个搅拌翼呈径向辐射状分布在内杆中心轴的外侧壁上，位于同一层的搅拌翼随外杆同向转动或随内杆同向转动，搅拌翼与同向转动的杆件之间至少有一个固定连接点，且搅拌翼同时与反向转动的杆件连接时，则搅拌翼与杆件均为转动连接；掘削翼板设置在内杆底部或最外层搅拌翼的底部。本发明的优点是解决了搅拌翼轨迹一致造成的搅拌区域有限、搅拌翼相互剪切效果不佳等问题，可实现更大范围的土体扰动，达到搅拌更加充分更加均匀的效果。
Drilling tool for construction of large-diameter multi-layer mutual shearing mixing pile
The invention relates to the technical field of stirring drilling tools, in particular to a drilling tool for construction of a large-diameter multi-layer mutual shearing stirring pile, which comprises an outer rod, an inner rod, at least two stirring wings and digging and cutting wing plates, at least one inner rod slurry passing channel is formed in the inner rod; the at least one stirring wing is radially distributed on the outer side wall of the central shaft of the outer rod; at least one stirring wing is radially distributed on the outer side wall of the center shaft of the inner rod, the stirring wings located on the same layer rotate in the same direction along with the outer rod or the inner rod, at least one fixed connecting point is arranged between the stirring wings and the rod pieces rotating in the same direction, and when the stirring wings are connected with the rod pieces rotating in the opposite direction at the same time, the stirring wings rotate in the same direction. The stirring wings are rotationally connected with the rod pieces; and the digging and cutting wing plate is arranged at the bottom of the inner rod or the bottom of the outermost stirring wing. The stirring device has the advantages that the problems that the stirring area is limited and the mutual shearing effect of the stirring wings is poor due to the fact that the tracks of the stirring wings are consistent are solved, soil disturbance in a larger range can be achieved, and the effect that stirring is more sufficient and more uniform is achieved.
本发明涉及搅拌钻具技术领域，一种用于大直径多层互剪搅拌桩施工的钻具，包括外杆、内杆、至少两个搅拌翼和掘削翼板；内杆中至少设置有一条内杆走浆通道；至少一个搅拌翼呈径向辐射状分布在外杆中心轴的外侧壁上；至少一个搅拌翼呈径向辐射状分布在内杆中心轴的外侧壁上，位于同一层的搅拌翼随外杆同向转动或随内杆同向转动，搅拌翼与同向转动的杆件之间至少有一个固定连接点，且搅拌翼同时与反向转动的杆件连接时，则搅拌翼与杆件均为转动连接；掘削翼板设置在内杆底部或最外层搅拌翼的底部。本发明的优点是解决了搅拌翼轨迹一致造成的搅拌区域有限、搅拌翼相互剪切效果不佳等问题，可实现更大范围的土体扰动，达到搅拌更加充分更加均匀的效果。
Drilling tool for construction of large-diameter multi-layer mutual shearing mixing pile
一种用于大直径多层互剪搅拌桩施工的钻具
CHEN TIANXIONG (author) / WANG ZHANCOU (author) / LIU ZHONG (author) / LAN WEI (author) / ZHANG CHUFU (author)
2023-11-07
Patent
Electronic Resource
Chinese
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