Wirtgen Gmbh

Wirtgen America, Inc.

Christian Berning

Cyrus Barimani

Günter Hähn

Dieter Simons

Thomas Kramer

Andreas Vogt

Thomas Lehnert

Hardy Wilhelmi

Dirk Franzmann

Philip Verhaelen

Tobias Stinner

Martin Lenz

Matthias Fritz

Andreas Salz

Armin Montermann

Sebastian Hofrath

Hanjo Held

Karsten Buhr

Herbert Ley

Sebastian Winkels

Markus Frankemölle

Tobias Krista

Peter Busley

Guenter Haehn

René Müller

Harald Kroell

Christoph Menzenbach

Roland Lull

Rene′ Müller

Olaf Gaertner

Lothar Schwalbach

Stephan Drumm

Herbert Lange

Joerg Berges

Matthias Brück

Stefan Wagner

Stefan Abresch

Axel Mahlberg

Dieter Bungarten

Heinz Kötting

Harald Kröll

Oliver Thiel

Stefan Cutler

Heinz Koetting

Sebastian Drumm

Rene Müller

Thomas Schmidt

Bjoern Schneider

Bernd Walterscheid

Markus Schäfer

Sebastian Bötzius

Markus Bach

Manuel Rossa

Philipp Prassel

Rene' Müller

Christopher Mittelstaedt

Martin Hörnig

Marius Kloft

Martin Hömig

Markus Schaefer

Martin Quadt

Cyrus Barimanl

Michael Schulz

Markus Schafer

Heinrich Kötting

Tim Liesenfeld

Christopher Mittelstädt

Björn Schneider

Jörg Berges

Markus SCHÄFER

René MÜLLER

Günter Dr Hähn

Cyrus Dr Barimani

Dieter Simmons

A construction machine uses a controller configured to determine a cross-sectional profile of a design surface at a selected position and orientation of a milling drum of the construction machine. The controller automatically determines a preferred sensor sub-set from a plurality of possible sensor sub-sets selected from a set of available sensors. The preferred sensor sub-set must be usable to create at least a portion of the cross-sectional profile of the design surface. The controller automatically maintains or switches control of the milling depth to use the preferred sensor sub-set.

Automated sensor switching

In a self-propelled construction machine (), in particular road milling machine or surface miner, for working a ground pavement, comprising a milling drum (), which is mounted in a machine frame, wherein a milling cut develops during milling of the ground pavement with the milling drum (), wherein the milling drum () comprises a first and a second end side, at least a first measuring device, which is arranged next to the first end side of the milling drum () and measures the distance of the machine frame relative to the ground pavement next to the first end side of the milling drum (), at least a second measuring device, which is arranged next to the second end side of the milling drum () and measures the distance of the machine frame relative to the ground pavement next to the second end side of the milling drum (), and a control device () for controlling the milling depth, wherein, in a first milling operation, the control device () determines the milling depth by means of measurements performed by the first and the second measuring device, it is provided for the following features to be achieved: a second milling operation is detectable by means of the control device (), in which the milling drum () is positioned on an as yet non-milled milling cut that is arranged next to a previously milled milling cut, wherein the control device (), as soon as the second milling operation is detected, uses measurements performed by at least a third measuring device in lieu of the first and/or the second measuring device for determining the milling depth.

Self-propelled construction machine and method for working a ground pavement

The invention relates to a milling machine, in particular a road milling machine, a stabiliser, a recycler or a surface miner, comprising a drive means which is configured such that the milling machine performs translatory and/or rotatory movements on the ground, and a working means which is configured such that the ground is machined. The invention also relates to a method for operating a milling machine of this type. The milling machine according to the invention has a control unitto input drive parameters and work parameters. The control unitis distinguished by a selection unitC to select an operating mode from a plurality of operating modes. The control and processing unithas a memoryA which stores at least one predetermined drive parameter which is assigned to the operating mode, and/or at least one predetermined work parameter which is assigned to the operating mode, for each operating mode of the plurality of operating modes. The control and processing unitis configured such that at least one assemblyof the drive means and working means is controlled subject to the at least one drive parameter or work parameter which is stored in the memoryA for the operating mode selected using the selection unitC, such that the particular machine function is carried out. The milling machine further provides that at least one function which describes the dependence of a work parameter of one assembly on a drive parameter of another assembly is stored for each operating mode, the control and processing unitbeing configured such that, based on this function, at least one assembly of the working means or drive means is controlled such that the particular machine function is carried out.

Milling machine and process for the operation of a milling machine

An earth working machine (), encompassing a drive motor () and a working apparatus () drivable by the drive motor () so as to move rotationally, the drive motor () being connected to the working apparatus (), for transfer of a torque, with interposition of a shiftable transmission () comprising at least two gearing stages having different torque transfer ratios,

Earth working machine having a shiftable transmission between a drive motor and a rotatable working apparatus

An earth working machine includes a machine frame, a drive configuration and a milling drum. A bearing stem is attached to one of the drive configuration and the milling drum, the bearing stem protruding in a first direction to a first axial end, the bearing stem having an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other, a furthest one of the cylindrical bearing surfaces from the drive axial end having a smaller diameter than a next furthest one of the cylindrical bearing surfaces from the drive axial end. A non-locating bearing is connected to the machine frame and configured to receive the first and second cylindrical bearing surfaces of the bearing stem.

Earth working machine having a rotatable working apparatus axially positionally retainable with high tightening torque by means of a central bolt arrangement, and method for establishing and releasing such retention

A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track.

Road milling machine and method for measuring the milling depth

The invention relates to a self-propelled construction machine, comprising a machine frame supported by a chassis having wheels or crawler tracks. The basic principle of the invention involves determining a variable Δ which is characteristic of the milling profile on the basis of a functional relationship between the variable which is characteristic of the milling profile and the advance speed v and/or milling drum rotational speed n. The variable Δ which is characteristic of the milling profile is a correction variable for adjusting the height of the milling drum with respect to the surface of the ground.

Self-propelled construction machine and method for operating a self-propelled construction machine

An earth working machine (), encompassing a drive motor () and a working apparatus () drivable by the drive motor () so as to move rotationally, the drive motor () being connected to the working apparatus (), for transfer of a torque, with interposition of a shiftable transmission () comprising at least two gearing stages having different torque transfer ratios, is characterized in that by means of a first gearing stage of the shiftable transmission (), an input shaft (), coupled on the input side to the drive motor (), of the shiftable transmission () is connectable in torque-transferring fashion directly to an output shaft (), coupled on the output side to the working apparatus (), of the shiftable transmission () so as to rotate together at the same rotation speed; and by means of a second gearing stage of the shiftable transmission (), the input shaft () is connectable in torque-transferring fashion, with interposition of a transmission assemblage (), to the output shaft () so as to rotate together at different rotation speeds.

A self-propelled earth working machine (), for example a road milling machine, recycler, or surface miner, includes: the extraction device () comprising a filter apparatus () arranged along an operational flow path from the at least one extraction location () to the discharge location (), the filter apparatus () encompassing: The filter apparatus () comprises a bypass valve () shiftable between two different operating positions, such that a filtering operating position connects the at least one extraction location () to the exhaust location () with passage through the filter element (); and a bypass operating position connects the at least one extraction location () to the exhaust location () while bypassing the filter element ().

Earth working machine having a dust extraction system with selectable filtration of the extracted dust-laden air

A self-propelled construction machine, having a milling drum housing having a sealing device which has a sealing element arranged in the working direction of the construction machine behind the milling drum, an adjustment device for adjusting the height position of the sealing element, and a controller for controlling the adjustment device of the sealing element. The sealing device has a scraper element, which is pivotably arranged on the sealing element such that the scraper element rests on the milled material and is pivoted in relation to the milling drum on the basis of the height of the milled material. The height position of the sealing element is adjusted on the basis of the pivot position of the scraper element.

In a self-propelled construction machine (), in particular road milling machine, stabilizer, recycler or surface miner, comprising a machine frame (), and at least one working device (), in particular milling drum, which is arranged in a housing () open towards the bottom that is at least partially closed on at least one side by at least one edge protector () height-adjustable relative to the machine frame (), wherein, for the purpose of height adjustment, at least one first lifting device () is provided, the first end () of which is connected to the machine frame (), and the second end () of which is connected to the height-adjustable edge protector (), it is provided for the following features to be achieved: a second lifting device () is provided, the first end () of which is connected to the machine frame (), and the second end () of which is connected to a first end () of a transmission device (), which is in turn connected, with a second end (), to the height-adjustable edge protector ().

Construction machines

A civil engineering machine has a machine control unit configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system independent of the position and orientation of the civil engineering machine. A geometrical shape to be produced on the ground is preset in either a machine control unit or a field rover control unit. The field rover is used to determine a position of at least one identifiable point of the preset geometrical shape in the independent reference system. Curve data defining a desired curve in the independent reference system, corresponding to the preset shape, is determined at least partially on the basis of the position of the at least one identifiable point of the preset geometrical shape in the independent reference system.

Self-propelled civil engineering machine system with field rover

A road milling machine includes a machine frame, at least three travelling devices, a milling drum, and at least one hydraulic drive system. The hydraulic drive system includes at least one hydraulic pump, at least one hydraulic fixed displacement motor for driving at least one driven travelling device, and one each hydraulic variable displacement motor for driving the remaining travelling devices. A first gearbox is arranged between the fixed displacement hydraulic motor and its associated travelling device. One each second gearbox is arranged between each of the hydraulic variable displacement motors and their associated travelling devices. The transmission ratio of the first gearbox is lower than the transmission ratios of the second gearboxes and/or the displacement volume of the fixed displacement motor is smaller than the maximum displacement volume of the variable displacement motors.

Self-propelled construction machine

A self-propelled construction machine for milling a ground surface is provided with a machine frame, a working drum, and a transport conveyor with a discharge end from which worked-off milling material is dischargeable onto a point of impingement on a loading surface of a transport vehicle, wherein the transport conveyor is laterally slewable to a slewing angle about at least a first slewing axis. A controller is configured, during an initialization process, to specify a command variable within a coordinate system, the coordinate system being stored during the initialization process with its origin at a starting point associated with the machine. The controller is further configured during a working process, wherein the coordinate system is stationary, to automatically control the slewing angle corresponding to detected changes in position and/or orientation of the machine and relative to the command variable.

Self-propelled milling machine, as well as method for controlling a self-propelled milling machine

A bearing component for mounting a replaceable milling drum on an earth working machine includes an annular connecting flange having a central axis. A bearing stem protrudes from the connecting flange axially in a first direction to a first axial end, the bearing stem having an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other. The bearing stem further includes a centering recess open at a second axial end opposite the first axial end, the centering recess including an opening angle decreasing in steps so that the centering recess tapers in the first direction, the centering recess forming a portion of the central opening.

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Zülpich, Germany

Christian Berning