Bomag Gmbh

Bomag Gmbh & Co., Ohg

Niels Laugwitz

Steffen Wachsmann

Peter Erdmann

Robert Laux

Karl Hermann Moetz

Helmut Roetsch

Maximilian Philippsen

Jens-Martin Zehbe

Manfred Hammes

Moritz Nick

Heinz Nick

Jürgen Heusinger

Karl-Hermann Moetz

Josef Becker

Peter Stein

Michael Witsch

Werner Nick

Martin Dettmer

Thomas Steeg

Eric Schmidt

Marco Baioni

Karl-Hermann Mötz

The invention relates to a vibrating plate for ground compaction, comprising a drive motor, an exciter unit which is driven by the drive motor and by means of which a base plate can be set in vibration, an adjustably mounted hood, which can be adjusted between an operating position at least partially covering the drive motor and a maintenance position at least partially exposing the drive motor, an exhaust air guiding device leading from the drive motor to an exhaust air opening in the hood for the cooling air of the drive motor, the exhaust air guiding device being formed in two parts and comprising an exhaust air adapter on the drive motor side and an exhaust air guide on the hood side, the exhaust air adapter and the exhaust air guide together forming a continuous exhaust air path from the drive motor to the exhaust air opening in the hood when the hood is in the operating position, the exhaust air adapter being attached to the drive motor, and the exhaust air guide being attached to the hood such that it is adjustable with the hood between the operating position and the maintenance position.

Vibrating plate with hood optimized for noise reduction

A hand-guided ground compaction machine, in particular a vibratory tamper or vibration plate compactor, having a superstructure, a drive device arranged on the superstructure and having at least one drive shaft, a substructure having a compaction plate driven by the drive device, and a sensor device comprising an accelerometer for determining the ground stiffness of a ground to be compacted, wherein the sensor device is supplied with electrical power, in particular solely, by a generator driven by the at least one drive shaft.

Hand-guided soil compaction machine

A ground compaction roller, in particular a tandem roller or a single-drum roller, having a machine frame, a drive unit, at least one roller drum mounted on the machine frame for rotation about a rotation axis, an exciter device arranged at least partially in the roller drum, and a sensor device for measuring the compaction of a ground achieved by a passage of the ground compaction roller, said sensor device being arranged on the roller drum in the region of the rotation axis and rotating together with the roller drum during operation of the ground compaction roller. The invention also relates to a method for ascertaining the ground stiffness during ground compaction with a ground compaction roller, in particular a tandem roller or a single-drum roller, comprising the steps of: measuring the acceleration directly at a roller drum which rotates during operation, ascertaining the ground stiffness from the measured values, wirelessly transmitting the measured values and/or the ground stiffness values to a receiving device.

Ground compaction roller with sensor device on the roller drum, and method for ascertaining the ground stiffness

A self-propelled road roller comprising a machine frame, a drive unit; and a control device, wherein the self-propelled road roller comprises a tandem roller or a single-drum roller, to compact ground in a working direction; and wherein a sensor device for determining the thickness of a paved layer is provided, the sensor device comprising a height reference sensor and a distance sensor, the height reference sensor being configured to determine its height position in relation to a height reference, and the distance sensor being configured to determine the height position of the height reference sensor in relation to the ground, and that the control device is configured to ascertain the thickness of the paved layer from the measurements of the sensor device and a predetermined reference height.

Measuring paving layer thickness by means of a road roller

The present invention proposes a ground compactor with a ground compaction drum rotating about a rotation axis during compaction of a substrate, wherein the ground compaction drum includes a deformation sensor for detection of an elastic deformation of the ground compaction drum in order to determine a degree of stiffness of the substrate.

Ground compactor and method for determining substrate properties using a ground compactor

A method for monitoring the compaction process of an asphalt layer to be compacted in road construction is provided comprising the steps: detecting the edges limiting the hot asphalt layer transversely to the road pathway by means of a temperature sensor arranged on a road roller compacting the asphalt layer, and dividing the detected asphalt layer into at least two width segments across the road pathway, wherein the position of the road roller on the asphalt layer transversely to the road pathway is determined from the measurement of the temperature sensor and is assigned to one of the width segments, the working operation of the road roller on the width segment is quantified via an operating parameter and stored, and the quantified working operation for each width segment is displayed to the operator for at least one past working interval. A road roller for carrying out the method is also provided.

Method for monitoring compaction process in road construction and road roller

A rubber-tired roller for the compaction of a ground, in particular for asphalt compaction, with a machine frame, a drive engine, a chassis driven by said drive engine with a front chassis part and a rear chassis part, at least one chassis part comprising at least two tires with running surfaces, which are arranged next to one another, at least one sprinkler system for the tires of the chassis part, which is configured to apply a liquid separating agent to the running surfaces of the tires, and a control unit for controlling the sprinkler system, wherein a temperature sensor is provided which is configured and arranged such that it determines the temperature of at least one tire, in particular the running surface of said tire. The invention moreover relates to a method for controlling a sprinkler system of such a rubber-tired roller.

Rubber-tire roller for compacting a ground and method for controlling a sprinkler system of a rubber-tire roller

A drive apparatus in a self-propelled construction machine comprises a milling rotor and a main drive which can be coupled to the milling rotor via an engaging and disengaging clutch, and an auxiliary drive which can be coupled to the milling rotor alternatively to the main drive. The clutch is provided with a fixed side and an axially displaceable output side, which is displaceable between an engaged position and a disengaged position. The axially displaceable side is simultaneously also the engaging and disengaging part of a shiftable transmission, the fixed part of which is driven by the auxiliary drive, with the transmission and the clutch being engaged and disengaged in a selective fashion via the axially displaceable side of the clutch.

Drive apparatus in a self-propelled construction machine

A device for ground compaction, comprising a frame and a drive motor supported by the frame, a vibration exciter driven by the drive motor and a ground compaction apparatus, in particular a base plate or a roller drum, that is connected to the vibration exciter, wherein the vibration exciter causes the ground compaction apparatus to vibrate at a fixed vibration frequency or within a vibration frequency range during a compaction operation, and wherein a conversion device for the conversion of vibrations into electric energy is provided which converts vibrations of the device for ground compaction into electric energy, wherein the conversion device comprises two spring-mass systems with different resonance frequencies, and wherein a control unit is provided which determines the degree of compaction of the ground from the electric energy obtained by the individual spring-mass systems, in particular the respective voltages. Moreover, the invention relates to a method for monitoring changes in the ground compaction produced with a device for ground compaction.

Device for ground compacting and method for operating and monitoring the same

A road paver is provided with a drive, a bunker, a material conveying device, a screed comprising a tamping device and an electric heating device on the screed and/or on the tamping device, wherein a control unit is configured in such a manner that it determines, by means of a measurable electrical operating parameter of the electrical heating device on the screed and/or on the tamping device, the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed. A method for determining a width and/or a weight and/or a center of gravity of a screed of a road paver, comprising the steps: measuring an electrical variable of a heating device, in particular a heating power, a heating resistance or a power consumption of the heating device; calculating the weight and/or the center of gravity and/or the width of the screed transversely to the working direction of the screed by means of the electrical operating variable.

Road paver with control unit for determining the weight and/or the center of gravity and/or the width of the screed and corresponding method

The present invention relates to a method for determining and monitoring the mass of the milled material removed by a ground milling machine, comprising mounting a discharge belt on the ground milling machine via a pivot bearing and a tensile connection in such a manner that it can pivot at least about a horizontal axis, determining a tensile force (F) exerted by the discharge belt to the tensile connection, calculating a mass flow (q) of the milled material removed by the ground milling machine from the measured tensile force (F) and the conveying speed of the discharge belt, and calculating the loaded mass of the milled material removed by the ground milling machine from the mass flow (q) and the loading time (t). The present invention further relates to a ground milling machine for milling off ground material, in particular a road milling machine, recycler, stabilizer or surface miner, comprising a drive motor, a milling drum mounted so it is rotatable about a rotational axis in a milling drum box, and a discharge belt for loading milled material, which is mounted on the ground milling machine via a pivot bearing and a tensile connection fixed to the discharge belt such that it can pivot at least about a horizontal axis, the ground milling machine comprising a control device, and the ground milling machine with the control device being configured to carrying out the method according to the present invention.

Method for determining a mass of milled material and ground milling machine for carrying out said method

A tamping beam device of a paving screed, in particular of a road paver, is provided with a tamping beam arranged on a connecting rod, with a drive shaft connected to the connecting rod via an eccentric device, the eccentric device being configured such that a first and a second stroke adjustment position of the connecting rod can be adjusted depending on the direction of rotation of the drive shaft. Stroke adjustment is effected via an eccentric device with a thrust member comprising an inclined sliding surface and with an eccentric ring and a slide guidance. A method for changing the stroke of a tamping beam includes changing the direction of rotation of the eccentric device.

Tamping beam device of a paving screed, paving screed, road paver, and method for changing the stroke of a tamping beam device

A method for operating an attachable compactor, an attachable compactor as well as an excavator with an attachable compactor. For a corresponding efficient operation in accordance with the present invention, a display indicates the end of a time interval (required compaction time) that depends on a measured contact force or a parameter corresponding to the contact force.

Method for soil compaction with an attachable compactor, attachable compactor as well as an excavator with an attachable compactor

A soil compaction machine, in particular, a vibration compactor, is provided which comprises a vibration exciter for generating different kinds of exciter vibration having a first and a second imbalance shaft, which are arranged in parallel to one another. Each imbalance shaft is driven via a separate motor, so that the rotational velocity, the rotational direction, and the phase relation of each of the imbalance shafts can be changed separately.

Vibration exciter for a vibration compactor and construction machine having such a vibration exciter

The present invention relates to an interchangeable holder system comprising a basic module and an interchangeable holder for the accommodation of a cutting tool, which interchangeable holder is capable of being attached to the basic module, for the purpose of preparing ground surfaces, and to a construction machine, more particularly a stabilizer, a recycler, or a cold milling machine, comprising a milling device comprising such an interchangeable holder system.

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Lahnstein, Germany

Niels Laugwitz