Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Short auger bit of mixing pile and combined drilling tool with short auger bit
The invention relates to the technical field of underground construction mechanical equipment, in particular to a short auger bit of a mixing pile and a combined drilling tool with the short auger bit, the combined drilling tool comprises a top end connector, a center shaft, a frame structure and the short auger bit, and the top end connector is connected with the center shaft; the center shaft sequentially comprises an outer pipe, an inner pipe and a center pipe from outside to inside, and a plurality of material conveying channels are formed among the three pipes. The frame structure is connected to the central shaft in a single-layer or double-layer manner, and is provided with a plurality of layers of transverse stirring wing plates; the top end of the short spiral drill bit is connected to the bottom end of the center shaft. The short spiral drill bit comprises a drill bit main rod, a first injection port, a short spiral blade and a drill tip; the inner pipe and the outer pipe of the combined drilling tool can rotate oppositely under the clockwise and anticlockwise torque action of the double power heads, staggered shearing and stirring of the adjacent transverse stirring wing plates can be achieved, and the compaction enhancing effect of the spiral self-tapping drilling and digging technology and the back pressure technology of the short spiral drill bit can be achieved.
本发明涉及地下施工机械设备技术领域，一种搅拌桩的短螺旋钻头和带有短螺旋钻头的组合式钻具，组合式钻具包括顶端接头、中心轴、框架结构以及上述的短螺旋钻头，所述顶端接头与中心轴相连接；所述中心轴由外向内依次包括外管、内管和中心管，三管之间形成多条材料输送通道；所述框架结构呈单层或双层连接在中心轴上，并设置多层横向搅拌翼板；所述短螺旋钻头的顶端连接在中心轴底端；所述短螺旋钻头包括钻头主杆、第一喷注口、短螺旋叶片和钻尖；组合式钻具的内外管在双动力头的顺时针和逆时针扭矩作用下可进行互为相反的旋转，能够实现相邻横向搅拌翼板的交错剪切搅拌，以及短螺旋钻头的螺旋自攻钻掘和反压技术的挤密增强效果。
Short auger bit of mixing pile and combined drilling tool with short auger bit
The invention relates to the technical field of underground construction mechanical equipment, in particular to a short auger bit of a mixing pile and a combined drilling tool with the short auger bit, the combined drilling tool comprises a top end connector, a center shaft, a frame structure and the short auger bit, and the top end connector is connected with the center shaft; the center shaft sequentially comprises an outer pipe, an inner pipe and a center pipe from outside to inside, and a plurality of material conveying channels are formed among the three pipes. The frame structure is connected to the central shaft in a single-layer or double-layer manner, and is provided with a plurality of layers of transverse stirring wing plates; the top end of the short spiral drill bit is connected to the bottom end of the center shaft. The short spiral drill bit comprises a drill bit main rod, a first injection port, a short spiral blade and a drill tip; the inner pipe and the outer pipe of the combined drilling tool can rotate oppositely under the clockwise and anticlockwise torque action of the double power heads, staggered shearing and stirring of the adjacent transverse stirring wing plates can be achieved, and the compaction enhancing effect of the spiral self-tapping drilling and digging technology and the back pressure technology of the short spiral drill bit can be achieved.
本发明涉及地下施工机械设备技术领域，一种搅拌桩的短螺旋钻头和带有短螺旋钻头的组合式钻具，组合式钻具包括顶端接头、中心轴、框架结构以及上述的短螺旋钻头，所述顶端接头与中心轴相连接；所述中心轴由外向内依次包括外管、内管和中心管，三管之间形成多条材料输送通道；所述框架结构呈单层或双层连接在中心轴上，并设置多层横向搅拌翼板；所述短螺旋钻头的顶端连接在中心轴底端；所述短螺旋钻头包括钻头主杆、第一喷注口、短螺旋叶片和钻尖；组合式钻具的内外管在双动力头的顺时针和逆时针扭矩作用下可进行互为相反的旋转，能够实现相邻横向搅拌翼板的交错剪切搅拌，以及短螺旋钻头的螺旋自攻钻掘和反压技术的挤密增强效果。
Short auger bit of mixing pile and combined drilling tool with short auger bit
一种搅拌桩的短螺旋钻头和带有短螺旋钻头的组合式钻具
LIU ZHONG (Autor:in) / CHEN TIANXIONG (Autor:in) / YANG NINGYE (Autor:in) / LAN WEI (Autor:in) / ZHANG CHUFU (Autor:in)
12.04.2022
Patent
Elektronische Ressource
Chinesisch