Wirtgen Gmbh

Betek Gmbh & Co. Kg

Andreas Salz

Christian Berning

Cyrus Barimani

Karsten Buhr

Hardy Wilhelmi

Thomas Lehnert

Markus Frankemölle

Martin Lenz

Hardy Emme

Tobias Stinner

Sascha Spöth

Günter Hähn

Peter Busley

Guenter Haehn

Philip Verhaelen

Heiko Friederichs

Ulrich Krämer

Simon Krämer

Martin Quadt

Andreas Rapp

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

An earth working machine includes a support structure and a working assembly mounted on the support structure so as to be rotatable about a drive axis. An assembly-side bearing configuration is connected to the working assembly and a structure-side bearing configuration is connected to the support structure. The assembly-side bearing configuration includes a driver configuration having a driver surface facing in a first circumferential direction and the structure-side bearing configuration includes a driver counterpart configuration having a driver counterpart surface facing in a second circumferential direction opposite to the first, the movement spaces of the driver surface and of the driver counterpart surface about the drive axis overlapping one another.

Earth working machine having a positive connection between the rotating working assembly and its rotary bearing

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.

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

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 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.

The invention relates to a skid segment () for an edge protection () on a road milling machine or similar ground processing machine having a base part () and at least one first skid section () mounted thereupon, wherein the first skid section (), in a first operating position of the base part (), can be directed in direction (A) onto the surface of the road or ground. At least one second skid section () is mounted on the base part (), which, in a second operating position of the base part (), can be directed in direction (A) onto the surface of the road or ground. The invention further relates to an edge protection for a road milling machine or similar ground processing machine having skid segments of this kind, wherein the edge protection has an edge which is designed to receive at least one skid segment.

Skid segment for an edge protection on a road milling machine and edge protection for a road milling machine

A replaceable milling drum for an earth working machine includes a milling drum tube and a protrusion structure fixed to the milling drum tube. A bearing stem protrudes from the protrusion structure axially away from a drive axial end of the milling drum tube. The bearing stem has 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, the bearing stem having a central opening therethrough co-axial with the drive axis.

An earth working machine includes a drive configuration and a working apparatus releasably connected together by a bolt component. A bolting moment bracing arrangement is connected or connectable in bolting moment-transferring fashion to the bolt component, and includes a bracing region that is embodied for bolting moment-bracing abutment in a bracing bolting direction against a counterpart bracing region, the drive configuration being embodied to be driven to rotate, in a rotation direction codirectional with the bracing bolting direction, while the bracing region is in abutment against the counterpart bracing region.

An earth working machine () includes a machine body () having a machine frame () and a drive configuration (), rotationally drivable relative to the machine frame () around a drive axis (A), to which configuration a working apparatus () embodied for earth working is releasably connected in torque-transferring fashion, in an operating position operational for earth working, for rotation together around the drive axis (A), such that when the connection is released, the working apparatus () is removable from the operating position in an axial direction relative to the drive configuration () for deinstallation from the drive configuration () and, for installation on the drive configuration, is conveyable into the operating position in an axial direction relative to the drive configuration ().

Earth working machine whose rotatable working apparatus, for installation on the machine, is conveyable into its operating position using an onboard actuator

An earth working machine () includes a machine body () having a machine frame () and a drive configuration (), rotationally drivable relative to the machine frame (), and to which configuration a working apparatus () embodied for earth working is releasably connected in torque-transferring fashion, in an operating position, for rotation together around a drive axis (A), such that when the connection is released, the working apparatus () is removable from the operating position in an axial direction relative to the drive configuration () for deinstallation from the drive configuration () and, for installation on the drive configuration (), is conveyable into the operating position in an axial direction relative to the drive configuration (), an actuator () being provided which is embodied to move the working apparatus () out of the operating position when the connection is released.

Earth working machine whose working apparatus is displaceable out of its operating position using an onboard actuator

The present invention relates to an earth working machine () having Provision is made according to the present invention that the receiving conveying device (), in addition to swingable suspension () on the machine frame (), is couplable by means of a second motion coupling (), different from the first (), to a component arrangement () of the earth working machine () which is drivable to move relative to the machine frame (), in such a way that a driven motion of the component arrangement (), from an initial position into a final position different therefrom, brings about a displacement of the swingably suspended receiving conveying device () away from the milling unit ().

Earth working machine having a conveying device quickly distanceable from the milling unit, and method therefor

The invention relates to a scraper bar () for a scraper blade () of a road milling machine, having a carrier () that comprises a front side and a rearward installation surface (), the carrier () comprising a cutting-element receptacle (), cutting elements () being held, serially arranged along a longitudinal axis (L) extending in a width direction of the carrier (), on or in the cutting-element receptacle (), and the cutting elements () comprising a cutting edge () that transitions indirectly or directly into a rake surface (). In order to improve the working result, provision is made according to the present invention that at least for some of the cutting elements (), the cutting edge () is set at least locally not parallel to the longitudinal axis (L).

Scraper bar for a scraper blade of a road milling machine

In a self-propelled road milling machine for milling road surfaces comprising a milling roller housing arranged at the machine frame between the front and rear chassis axles, it is provided that the rear end, as seen in the direction of travel, of the milling roller housing is flush with a height adjustable stripper shield which laterally rests in the milling track of the milling roller and resiliently against a milling edge of the milling track extending orthogonally to the road surface.

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Neustadt, Germany

Andreas Salz