Wirtgen Gmbh

Amazonen Werke, H. Dreyer Gmbh. Co. Kg

Sven Paulsen

Cyrus Barimani

Stefan Wagner

Günter Hähn

Michael Pokriefke

Lothar Schwalbach

Klaus Vollmann

Martin Wilken

Gunther Hahn

Gerd Häfker

Ralf Van Zoest

A wear prognosis method and a maintenance method for an earth working machine are disclosed, along with an apparatus for performing the method. Provision is made that the current wear state of one or more earth working tools is sensed. The residual wear capacity until the wear limit is reached is then ascertained from the current wear state.

Wear prognosis method and maintenance method

In a method for determining an area milled by at least one construction machine or at least one mining machine by means of a milling drum () by means of working a predetermined area in several milling trajectories by at least one machine (), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

Method and device for determining an area cut with a cutting roll by at least one construction machine or mining machine

A system is provided for determining a volume of material milled, or a surface area milled, by a construction machine having a milling drum. The volume of material milled is determined as a function of a cross-sectional area of material to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling. The cross-sectional area is determined in part by direct machine observation of one or more profile characteristics of a ground surface in front of the milling drum. The surface area milled is determined as a function of the width of the area to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling.

Determining milled volume or milled area of a milled surface

In a method for determining an area milled by at least one construction machine or at least one mining machine with a milling drum () working a predetermined area in several milling trajectories by at least one machine (), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

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Brohl-Lützing, Germany

Sven Paulsen