Methods and Apparatus for Forming Hole in Ground

摘要

An apparatus for forming a hole in ground (10) includes a mounting plate (60) mounted to a loader (80). A probe (11) is coupled with the mounting plate (60) through a hydraulic motor (120) having an output shaft (122). The probe (11) is driven into the ground along the vertical axis by movement of the mounting plate (60) by the loader (80), and an upper portion of the probe (11) is simultaneously wobbled about two axes that are perpendicular to each other and to the vertical axis while the output shaft (122) is rotating. The probe (11) is then moved out of the ground to leave a hole (100) in the ground. To provide a rolling action against the sides of the hole (100), the upper end of the probe (11) is moved about an annular path around the vertical axis while the probe (11) is rotating.

主权项

1. Method for forming a hole in ground comprising:
rotating a probe about a probe axis of rotation, with the probe having a bottom, pointed end and an upper end spaced from the bottom end along the probe axis of rotation; driving the probe while rotating into ground along a vertical axis; while the probe is being driven into the ground and rotating, simultaneously wobbling the upper portion of the probe about a first axis perpendicular to the vertical axis and a second axis perpendicular to the vertical axis and perpendicular to the first axis by moving the upper end of the probe away from the vertical axis to angle the probe axis of rotation relative to the vertical axis; and after the probe is driven into the ground, moving the probe upward from the ground along the vertical axis, leaving a hole in the ground.