A vibration exciter for a soil compacting device includes a first unbalanced shaft on which at least one first unbalanced mass is arranged, a second unbalanced shaft which is arranged axially parallel to the first unbalanced shaft, which is contra-directionally rotatably coupled to the first unbalanced shaft in form-locked manner, and on which at least one second unbalanced mass is arranged, and a drive device for rotatably driving one of the unbalanced shafts and a rotation device. The drive device can be actuated by an actuation device in order to rotate the second unbalanced mass relative to the first unbalanced mass. The second unbalanced shaft has a cavity, and the actuation device is at least partially arranged inside the cavity.

The present invention provides a compacting shoe manufacture for attachment to the vibration system and assembly of a vibratory compacting machine, the compacting shoe including a contact plate with an arched contact surface sized and shaped to fit reasonably snugly around a portion of a pipe intended for underground installation, the compacting shoe also including at least two foot portions with a flat central section and first and second end sections provided at an angle relative thereto, the foot portions further including a durability sleeve preferably composed of an ultra-high-molecular-weight polyethylene material.

The present invention provides a compacting shoe manufacture for attachment to the vibration system and assembly of a vibratory compacting machine, the compacting shoe including a contact plate with an arched contact surface sized and shaped to fit reasonably snugly around a portion of a pipe intended for underground installation, the compacting shoe also including at least two foot portions with a flat central section and first and second end sections provided at an angle relative thereto, the foot portions further including a durability sleeve preferably composed of an ultra-high-molecular-weight polyethylene material.

A rig mounted compactor is provided. The rig mounted compactor comprises a shaft rotatably arranged to cause vibration of the rig mounted compactor with a first amplitude and a second amplitude by means of a first weight and a second weight and a hydraulic motor arranged to drive the shaft. The first weight is eccentrically fixed to the shaft, and the second weight is eccentrically arranged at the shaft. The second weight is clutchable between an idle mode when driven in the direction, and a rotatable mode when driven in the direction. The second weight is arranged to idle with respect to the shaft in the idle mode. The shaft is arranged to cause the first amplitude of the vibration by the first weight in the idle mode, and the second weight is arranged to rotate synchronously with the shaft in the rotatable mode to cause the second amplitude of the vibration.

A rig mounted compactor is provided. The rig mounted compactor comprises a shaft rotatably arranged to cause vibration of the rig mounted compactor with a first amplitude and a second amplitude by means of a first weight and a second weight and a hydraulic motor arranged to drive the shaft. The first weight is eccentrically fixed to the shaft, and the second weight is eccentrically arranged at the shaft. The second weight is clutchable between an idle mode when driven in the direction, and a rotatable mode when driven in the direction. The second weight is arranged to idle with respect to the shaft in the idle mode. The shaft is arranged to cause the first amplitude of the vibration by the first weight in the idle mode, and the second weight is arranged to rotate synchronously with the shaft in the rotatable mode to cause the second amplitude of the vibration.

Vibratory device (1) for compacting machine comprising a shaft (3), at least one eccentric mass (4,5,6) rotatable arranged around the shaft (3) and at least one motor (8) arranged around the shaft (3). The motor (8) is arranged for rotating drive of at least one of the eccentric masses (4,5,6) around the shaft (3). The motor (8) comprise a winding unit (9) connected to, the shaft (3) and a rotor (10) rotatable arranged around the shaft (3) and connected to at least one of the eccentric masses (4,5,6). The rotor (10) is arranged to be actuated by at least one magnetic field to rotation around the shaft (3) and the winding unit (9) is arranged to generate the magnetic fields which actuates the rotor (10) to rotation.

Vibratory device (1) for compacting machine comprising a shaft (3), at least one eccentric mass (4,5,6) rotatable arranged around the shaft (3) and at least one motor (8) arranged around the shaft (3). The motor (8) is arranged for rotating drive of at least one of the eccentric masses (4,5,6) around the shaft (3). The motor (8) comprise a winding unit (9) connected to, the shaft (3) and a rotor (10) rotatable arranged around the shaft (3) and connected to at least one of the eccentric masses (4,5,6). The rotor (10) is arranged to be actuated by at least one magnetic field to rotation around the shaft (3) and the winding unit (9) is arranged to generate the magnetic fields which actuates the rotor (10) to rotation.

A compacting roll for a soil compactor includes a roll shell concentrically surrounding a roll rotational axis, a roll inner space and two oscillatory arrangements, at least partially arranged within the roll inner space, for generating the oscillating torque impinging on the roll shell with respect to the roll rotational axis whereat each oscillatory arrangement includes at least two oscillation mass units that are rotatable around the respective oscillation rotational axis and at least one oscillation drive motor to serve exclusively for driving the oscillation mass units of this oscillatory arrangement. The oscillation mass units of different oscillatory arrangements can be offset from each other in the direction of the roll rotation axis.

A compacting roll for a soil compactor includes a roll shell concentrically surrounding a roll rotational axis, a roll inner space and two oscillatory arrangements, at least partially arranged within the roll inner space, for generating the oscillating torque impinging on the roll shell with respect to the roll rotational axis whereat each oscillatory arrangement includes at least two oscillation mass units that are rotatable around the respective oscillation rotational axis and at least one oscillation drive motor to serve exclusively for driving the oscillation mass units of this oscillatory arrangement. The oscillation mass units of different oscillatory arrangements can be offset from each other in the direction of the roll rotation axis.

A device for compacting a substrate, comprising an under carriage with a base arranged on the under carriage; a superstructure which is connected to the under carriage so as to transmit a force; a vibration exciter, by means of which at least the base of the undercarriage can be caused to vibrate and a contact plate, which is arranged on the base, said contact plate being arranged on a base lower face facing away from the superstructure such that the contact plate directly contacts the substrate to be compacted during the operation of the device. The contact plate and the base are connected together in a non-destructively releasable manner so as to transmit a force.