Large-particle-size pavement coring machine

The utility model discloses a large-particle-size road surface coring machine which comprises two supporting columns, a lifting mechanism is arranged on the two supporting columns, a connecting plate is arranged at the driving end of the lifting mechanism, a motor is arranged on the connecting plate, a drill bit is arranged at the driving end of the motor, and marking lines are engraved on the outer portion of the drill bit. A power source is arranged beside the supporting column and electrically connected with the motor. The large-particle-size pavement coring machine solves the problems that most of existing drilling and sampling machines are complex in result and inconvenient to carry and operate, and the drilling depth is difficult to determine. 本实用新型公开了一种大粒径路面取芯机，包括两个支柱，两个所述支柱上设置有升降机构，所述升降机构的驱动端设置有连接板，所述连接板上设置有电机，所述电机的驱动端设置有钻头，所述钻头的外部刻有标注线；支柱的侧旁设置有电源，所述电源与所述电机电连接。该大粒径路面取芯机，解决现有钻孔取样机存在大多结果复杂、携带操作不方便以及难以确定钻取深度的问题。