Positioning and guiding mechanism for sinking of steel casing: Fid-Bau Portal

Positioning and guiding mechanism for sinking of steel casing

The invention relates to the technical field of pile foundation construction equipment, and discloses a positioning and guiding mechanism for sinking of a steel casing. The positioning and guiding mechanism comprises a connecting sleeve, wherein two groups of positioning sleeves are fixedly installed on the upper and lower ends of the connecting sleeve, a positioning steel rope with one end fixedly connected with the surface is wound on the outer surface of each positioning sleeve, and the other end of a reset steel rope and the other end of the positioning steel rope are respectively wound and fixed to the outer surface of a transmission wheel set which is movably connected to a pile foundation construction platform in a sleeving mode. According to the positioning and guiding mechanism for sinking of the steel casing, the two groups of positioning sleeves are arranged on the connecting sleeve, and the structural design of the positioning sleeves are matched, so that the positioning and guiding operation on the steel casing can be achieved on the outer surface in the vertical direction of the steel casing; and compared with an existing positioning and guiding mechanism, the phenomenon of inclination in the sinking process under the flowing impact of seawater can be effectively avoided, and the stability and the reliability are high, so that the sinking precision is effectively increased.

本发明涉及桩基施工设备技术领域，且公开了一种用于钢护筒下沉的定位导向机构，包括连接套筒，所述连接套筒的上下两端分别固定安装有一组定位套筒，且定位套筒的外表面缠绕有一端与其表面固定连接的定位钢索，所述复位钢索和定位钢索的另一端分别缠绕固定在活动套接在桩基施工平台上的传动轮组的外表面上。该用于钢护筒下沉的定位导向机构，通过连接套筒上两组定位套筒的设置，并配合定位套筒上的结构设计，可以在的外表面上并沿着其竖直方向以实现对其的定位导向作业，与现有的定位导向机构相比，可以有效地避免在海水的流动冲击下在下沉的过程中出现倾斜的现象，稳固性及可靠性较高，进而有效地提高了在下沉时的精度。

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