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A platform for research: civil engineering, architecture and urbanism
Mechanical drill bit for mixing pile
The invention discloses a mixing pile mechanical drill bit which comprises a drill bit body and an inner cavity formed in the drill bit body, a mounting head is connected to the upper end of the drill bit body, upper blades and lower blades are sequentially arranged on the outer side of the drill bit body from top to bottom in a staggered mode, and the mixing pile mechanical drill bit further comprises a guniting unit arranged in the drill bit body and used for guniting the upper blades and the lower blades. Cement paste is sprayed to a piling area from the upper part of the mounting head through the drill bit body; the slurry control unit comprises a slurry blocking assembly arranged in the drill bit body and used for blocking the flowing state of cement slurry in the slurry spraying unit and a flow control unit arranged on one side of the slurry blocking assembly and used for controlling the slurry spraying speed of the slurry spraying unit. Cement paste is sprayed downwards from the spraying opening, meanwhile, the second paste outlet hole in the rotating state sprays the cement paste to the outer side, the tracks of the cement paste sprayed by the first flow guide hole and the second paste outlet hole can collide with each other in a drill hole, the spraying uniformity of the cement paste is further improved, and the drilling efficiency is improved. And spraying dead angles of the sprayed cement paste in the drill hole are prevented.
本发明公开了一种搅拌桩机械钻头,包括钻头本体，设于所述钻头本体内部的内腔，所述钻头本体上端连接有安装头，所述钻头本体的外侧由上到下依次交错设有上叶片、下叶片，还包括：喷浆单元，设于所述钻头本体内部，用于将水泥浆由安装头上部经钻头本体喷出到打桩区域；控浆单元，包括设于所述钻头本体内部用于阻挡喷浆单元内水泥浆流动状态的挡浆组件，设于所述挡浆组件一侧用于控制喷浆单元喷浆速度的控流单元。通过水泥浆在喷射口向下喷射，同时，处于转动状态的第二出浆孔将水泥浆向外侧喷射，使得第一导流孔与第二出浆孔喷射的水泥浆在钻孔内的轨迹能够冲撞在一起，进一步提高了水泥浆喷射的均匀性，防止喷射的水泥浆在钻孔内出现喷射死角。
Mechanical drill bit for mixing pile
The invention discloses a mixing pile mechanical drill bit which comprises a drill bit body and an inner cavity formed in the drill bit body, a mounting head is connected to the upper end of the drill bit body, upper blades and lower blades are sequentially arranged on the outer side of the drill bit body from top to bottom in a staggered mode, and the mixing pile mechanical drill bit further comprises a guniting unit arranged in the drill bit body and used for guniting the upper blades and the lower blades. Cement paste is sprayed to a piling area from the upper part of the mounting head through the drill bit body; the slurry control unit comprises a slurry blocking assembly arranged in the drill bit body and used for blocking the flowing state of cement slurry in the slurry spraying unit and a flow control unit arranged on one side of the slurry blocking assembly and used for controlling the slurry spraying speed of the slurry spraying unit. Cement paste is sprayed downwards from the spraying opening, meanwhile, the second paste outlet hole in the rotating state sprays the cement paste to the outer side, the tracks of the cement paste sprayed by the first flow guide hole and the second paste outlet hole can collide with each other in a drill hole, the spraying uniformity of the cement paste is further improved, and the drilling efficiency is improved. And spraying dead angles of the sprayed cement paste in the drill hole are prevented.
本发明公开了一种搅拌桩机械钻头,包括钻头本体，设于所述钻头本体内部的内腔，所述钻头本体上端连接有安装头，所述钻头本体的外侧由上到下依次交错设有上叶片、下叶片，还包括：喷浆单元，设于所述钻头本体内部，用于将水泥浆由安装头上部经钻头本体喷出到打桩区域；控浆单元，包括设于所述钻头本体内部用于阻挡喷浆单元内水泥浆流动状态的挡浆组件，设于所述挡浆组件一侧用于控制喷浆单元喷浆速度的控流单元。通过水泥浆在喷射口向下喷射，同时，处于转动状态的第二出浆孔将水泥浆向外侧喷射，使得第一导流孔与第二出浆孔喷射的水泥浆在钻孔内的轨迹能够冲撞在一起，进一步提高了水泥浆喷射的均匀性，防止喷射的水泥浆在钻孔内出现喷射死角。
Mechanical drill bit for mixing pile
一种搅拌桩机械钻头
JIANG DONGYU (author) / WU TIJUN (author) / XU HUASHENG (author) / YUAN FUPING (author) / WANG HAOMING (author) / LI XUDONG (author) / YAO DACHUANG (author) / ZHANG RENMI (author) / CHEN GUANG (author) / LIN XIANMING (author)
2024-09-03
Patent
Electronic Resource
Chinese
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