Vibration exciter, in particular for a construction machine
AssigneeEURODRILL GmbH
InventorHorst Damm
Life of this patent
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Abstract
The invention relates to a vibration exciter, in particular for a construction machine, having at least one rotatably supported unbalanced unit with at least one unbalanced element, a rotary drive, a gear arrangement with at least one gear wheel, wherein a rotation generated by the rotary drive can be transmitted by the gear arrangement to the at least one unbalanced unit, and a housing, in which the gear arrangement is accommodated. In accordance with the invention an energy-saving and low-maintenance arrangement is achieved in that by the gear arrangement an output shaft can be driven that extends out of the housing and in that the at least one unbalanced element is fixed outside of the housing on the output shaft.
Claims11
Vibration exciter for a construction machine, having
- at least two rotatably supported unbalanced units, each of said unbalanced units including a first unbalanced element and a second unbalanced element,
- a rotary drive,
- a gear arrangement with at least one gear wheel, wherein a rotation generated by the rotary drive can be transmitted by means of the gear arrangement to the at least two unbalanced units,
- a housing which is sealed-off and filled with gear oil for lubrication of the gear arrangement, and
- said housing having an upper part and a lower part, in which the gear arrangement is accommodated,
- a connecting element provided at the lower part of the housing,
- a flange bearing head fastened to the connecting element,
- a drill drive shaft rotatably supported by the flange bearing head and
- Wherein
- by means of the gear arrangement an output shaft can be driven, which extends out of the housing,
- the rotary drive is flanged on the upper part of the housing and is provided above the first and the second unbalanced elements and a drive shaft of the rotary drive drives a drive pinion of the gear arrangement and the drive pinion is arranged above the first and the second unbalanced elements and between the first and the second unbalanced elements in a lateral direction, and
- the first unbalanced element is arranged on a one end side of the output shaft and the second unbalanced element is arranged on an opposite end side of the output shaft, whereby each of the unbalanced elements is supported in a releasable and exchangeable manner on the output shaft.
Dependencies are inferred from the claim text.