A passive locking chuck for a rotary driver. The chuck receives the driving end of a foundation component such a screw anchor to be driven into the ground. As the driving end is inserted into the chuck, spring biased pawls are displaced until insertion is complete. The geometry of each pawl dictates that less force is required to insert the foundation component than to remove it. The chuck has a geometry that mates with the geometry of the driving end of the foundation component.

A passive locking chuck for a rotary driver. The chuck receives the driving end of a foundation component such a screw anchor to be driven into the ground. As the driving end is inserted into the chuck, spring biased pawls are displaced until insertion is complete. The geometry of each pawl dictates that less force is required to insert the foundation component than to remove it. The chuck has a geometry that mates with the geometry of the driving end of the foundation component.

An alignment and installation jig for a screw anchor driving machine. The alignment and installation jig includes a laser target that can be moved from an alignment position to a driving position. The jig may also include one or more automated crimping assemblies to form permanent connections between overlapping foundation components while the machine is correctly oriented.

An alignment and installation jig for a screw anchor driving machine. The alignment and installation jig includes a laser target that can be moved from an alignment position to a driving position. The jig may also include one or more automated crimping assemblies to form permanent connections between overlapping foundation components while the machine is correctly oriented.

Provided are a pile press-in device and a pile press-in method that allow an efficient construction even when electrically powered devices and hydraulic devices coexist in order to give drive members a driving force. A pile press-in device (1) comprises a chuck (5) for gripping and rotating a pile (4) in order to press the pile (4) into a ground while rotating the pile (4). The pile press-in device (1) causes electric motors (6) corresponding to the electrically powered device of the invention to give the chuck (5) a driving force for the rotation. The chuck (5) is moved up and down by lift cylinders (7) which are hydraulically powered hydraulic devices. An integrated control board (50) controls the electric motors (6) and the lift cylinders (7) in an interlocked manner.

Provided are a pile press-in device and a pile press-in method that allow an efficient construction even when electrically powered devices and hydraulic devices coexist in order to give drive members a driving force. A pile press-in device (1) comprises a chuck (5) for gripping and rotating a pile (4) in order to press the pile (4) into a ground while rotating the pile (4). The pile press-in device (1) causes electric motors (6) corresponding to the electrically powered device of the invention to give the chuck (5) a driving force for the rotation. The chuck (5) is moved up and down by lift cylinders (7) which are hydraulically powered hydraulic devices. An integrated control board (50) controls the electric motors (6) and the lift cylinders (7) in an interlocked manner.

A rotary driver 1 for a helical pile foundation 2 attached to a boom arm 3 of an excavator 5 forming a counter-support is described by means of which the helical pile foundation 2 can be screwed into or out of the ground in a defined direction. The rotary driver 1 is supplied by the excavator 5 with appropriate power, preferably hydraulic power, and is arranged at the front end of the boom arm 3 of the excavator 5. A rotary drive 6 is provided for this purpose at the front end of the boom arm 3 which transmits a drive torque 11 to the helical pile foundation 2, for which purpose a chucking device 7 for the helical pile foundation 2 is provided at the end of the rotary drive 6 facing toward the helical pile foundation 2. An additional counter-support 4 is arranged on the rotary drive 6, on the front end of the boom arm 3, or on the chucking device 7 and is anchored in the ground at the end opposite the area of arrangement. The additional counter-support 4 at least partially compensates for the forces acting on the helical pile foundation laterally to the plane of extension of the boom arm 3 due to the drive torque 11.

A rotary driver 1 for a helical pile foundation 2 attached to a boom arm 3 of an excavator 5 forming a counter-support is described by means of which the helical pile foundation 2 can be screwed into or out of the ground in a defined direction. The rotary driver 1 is supplied by the excavator 5 with appropriate power, preferably hydraulic power, and is arranged at the front end of the boom arm 3 of the excavator 5. A rotary drive 6 is provided for this purpose at the front end of the boom arm 3 which transmits a drive torque 11 to the helical pile foundation 2, for which purpose a chucking device 7 for the helical pile foundation 2 is provided at the end of the rotary drive 6 facing toward the helical pile foundation 2. An additional counter-support 4 is arranged on the rotary drive 6, on the front end of the boom arm 3, or on the chucking device 7 and is anchored in the ground at the end opposite the area of arrangement. The additional counter-support 4 at least partially compensates for the forces acting on the helical pile foundation laterally to the plane of extension of the boom arm 3 due to the drive torque 11.

An anchor installation vehicle that includes a vehicle frame having a top end and bottom end, one or more rotational thrusters, and an anchor system configured to hold an anchor extending from the bottom end of the vehicle frame.

An anchor installation vehicle that includes a vehicle frame having a top end and bottom end, one or more rotational thrusters, and an anchor system configured to hold an anchor extending from the bottom end of the vehicle frame.