| Patent application number | Description | Published |
|---|
| 20080218013 | Vibration exciter - A vibration exciter, particularly for a vibration pile driver, comprising at least two axles disposed parallel to one another, as well as at least two imbalance masses, which are attached to one or more of the axles. The relative rotary position of the imbalance masses can be adjusted relative to one another by at least one rotary oscillating motor having a rotor shaft and a stator housing. The rotor shaft is an integral part of one of the axles, and the rotary position of the stator housing relative to the rotor shaft can be changed. The stator housing can be locked to the rotor shaft. An oscillating motor suitable for use in a vibration exciter, comprises a rotor shaft and a stator housing, between which working chambers are formed. The stator housing can rotate about the rotor shaft and can be locked relative to the rotor shaft. | 09-11-2008 |
| 20080219085 | Vibration exciter - A vibration exciter, particularly for a vibration pile driver, comprises at least two axles disposed parallel to one another, as well as at least two imbalance masses, which are attached to one or more of the axles. The relative rotary position of the imbalance masses can be adjusted relative to one another by at least one rotary oscillating motor having a rotor shaft and a stator housing. The rotor shaft is an integral part of one of the axles, and the rotary position of the stator housing relative to the rotor shaft can be changed. The stator housing has at least one closure lid that is at least partially unreleasably coated with a slide alloy, for radial and axial bearing of the rotor shaft. At least one shaft seal is disposed between the rotor shaft and stator housing. The seal is hydraulically biased and provided with a support element. | 09-11-2008 |
| 20090146514 | Vibration generator for a vibration pile driver - A vibration generator has rotatable imbalance masses disposed on at least two shafts, in which means for adjusting the rotational position of the imbalance masses relative to one another are disposed. There is at least one sensor for determining the angular acceleration of the rotating imbalance masses. The sensors may also determine acceleration of the vibration generator. There is a module for determining the angular acceleration of the rotating imbalance masses on the basis of the measurement values determined by the sensors. A vibration pile driver for introducing elements to be pile-driven into the ground, and drawing them from the ground, as well as for compacting ground material, contains one of the aforementioned vibration generators. | 06-11-2009 |
| 20090188687 | Vibration generator for a vibration pile driver - A vibration generator for a vibration pile driver has imbalance masses that can rotate and which are disposed on shafts. The rotational position of the imbalance masses can be adjusted relative to one another. A control and regulation circuit is provided, which has the following components: a memory unit for storing ground composition data sets or task-specific default data sets with defined operational characteristic variables; sensors for continuous detection of the defined operational characteristic variables; an evaluation unit for comparing the operational characteristic variables that are determined with the operational characteristic variables of the selected default data set; a regulation device for regulating the vibration generator; and a control device for controlling the means for adjusting the rotational position of the imbalance masses relative to one another. The vibration generator is part of a vibration pile driver. | 07-30-2009 |
| 20090189467 | Vibration generator for a vibration pile driver - A vibration generator for a vibration pile driver, comprises imbalance masses that can rotate, which are disposed on shafts. A hydraulic drive having a changeable suction volume is disposed on the generator. A vibration pile driver consists of the vibration generator and a mast for movably supporting the vibration generator and/or an accommodation for a pile-driven material. | 07-30-2009 |
| 20100150485 | Compensation of Rotational Shaft Inclination - Bearing arrangement for a shaft rotatable around an axis of rotation comprising a first bearing for rotatably mounting an end of the shaft for rotation thereof around the axis of rotation, and a second bearing for pivotably mounting the end of the shaft for pivoting movements out of the axis of rotation, and an arrangement comprising a shaft, as well as an oscillator, each comprising the bearing arrangement. | 06-17-2010 |
| 20100202717 | Compensation of Rotational Shaft Inclination - Bearing arrangement for a shaft rotatable around an axis of rotation comprising a bearing including an inner bearing part for coupling to an end of the shaft and an outer bearing part for coupling to a mounting structure, and a retaining and pivoting element, which is connectable to the inner bearing part or the outer bearing part, wherein the retaining and pivoting element is designed for securing the end of the shaft against movement in a direction in parallel with the axis of rotation ( | 08-12-2010 |
| 20100224016 | Device for a Vibration Generator - A device for a vibrator, including at least one resilient element, with a force/travel curve having a first region, at least approximately given by an equation of formula K=a+b*W, where K is the spring force of the at least one resilient element, W is the spring travel and a and b are number greater than zero and a vibrator including such a device. | 09-09-2010 |
| 20100326222 | Vibration exciter - A vibration exciter, particularly for a vibration pile driver, has an exciter transmission having at least two imbalance masses, which are attached on one or on multiple shafts, and a pivot motor for adjusting the relative rotational position of the imbalance masses relative to one another. A pump for supplying the pivot motor is provided, which pump is operated by way of a shaft of the exciter transmission. | 12-30-2010 |
| 20110067509 | Compensation of Rotational Shaft Inclination - Bearing arrangement for a rotatable shaft comprising an inner bearing part for coupling to an end of the shaft, an outer bearing part for coupling to a mounting structure, and an axis of rotation, wherein at least one of the inner bearing part and the outer bearing part, at least in certain areas, possesses elastic deformability, at least in part, perpendicular to the axis of rotation, and an arrangement comprising the bearing arrangement and a shaft, as well as an oscillator comprising the latter. | 03-24-2011 |
