长螺旋钻机是一种液压步履行走、电控操纵升降、三环减速器驱动、长螺旋钻进的新型桩基础施工机械,适用于钻孔灌注桩、挤扩桩、软地基处理的各种基础工程,具有成孔效率高、质量好、无振动、无噪声、无污染、耗用钢材少、机械化程度高等优点。但是,施工过程中三环减速器常出现漏浆问题,经过对结构设计和使用工况的分析,对灌浆通道的旋转密封部分进行了结构改进,取得了理想效果。 Long auger drilling rig is a new type of pile foundation construction machine with hydraulic walking walking, electrically controlled lifting, three-ring reducer driving and long auger drilling. It is suitable for all kinds of foundations for bored pile, crowded pile expansion and soft foundation treatment Engineering, with a hole into a high efficiency, good quality, no vibration, no noise, no pollution, less consumption of steel, high degree of mechanization and other advantages. However, the leakage of the three-ring reducer often occurs during the construction process. After analyzing the structural design and service conditions, the rotary seal of the grouting channel has been structurally improved, and the ideal result has been achieved.