BAUER Maschinen GmbH

The invention relates to an earth-working machine comprising a carrier implement, which comprises a movable undercarriage, in particular comprising a tracked chassis, a working device, which is designed to work earth or rock, in particular to remove earth or rock, or to introduce structures into the ground, and at least one steel cable, which is subjected to tension at least temporarily and can be adjusted in a longitudinal cable direction by means of a cable drive. According to the invention, it is provided that the earth-working machine comprises at least one holding apparatus, which is designed to receive and detachably hold a cable measurement implement unit, which comprises a cable passage channel and is designed to detect a cable state, and wherein the holding apparatus is arranged in the region of the steel cable such that, when the cable measurement implement unit is received and held, the steel cable is guided through the cable passage channel.

The invention relates to a trench cutter comprising a cutter frame, at least one rotatably drivable cutter wheel, which has cutting teeth on its outer circumference for removing ground material, at least one bearing shield, which is arranged on the underside of the cutter frame and is configured to support the at least one cutter wheel, at least one conveyor box, which has at least one opening for discharging removed ground material and/or for feeding a suspension and is arranged in the region of the at least one bearing shield, wherein the at least one cutter wheel has, on its side facing the bearing shield, at least one flap tooth which can be adjusted between an unfolded position, in which the flap tooth removes ground material below the bearing shield, and a folded position for running past at the bearing shield. According to the invention, it is provided that a conveying side facing the cutter wheel is provided on the conveyor box with at least one opening, past which the cutting teeth and the at least one flap tooth run with no or little distance, wherein a recess is formed on the conveying side with respect to adjacent regions for the at least one flap tooth to run past.

The invention relates to a method for determining the position and/or orientation of tools of construction machines in a construction area, comprising the steps of: attaching at least one stereo camera to at least one construction machine or to a movable carrier, such that the stereo camera can detect at least one detection region within the construction area, preferably a working region of the construction machine, providing at least one reference point, the position of which is known relative to a predefined 3D world coordinate system and which can be recognised in the images of the stereo camera, in the detection region of the at least one stereo camera, calibrating the at least one stereo camera on the basis of the detection of the at least one reference point and triangulation in order to ascertain a transformation between the 3D world coordinate system and a 2D image coordinate system of the at least one stereo camera, preparing a virtual digital 3D terrain model of the construction area by means of digital image processing, in particular stereoscopy, and image recognition on the basis of the detection of the construction area by means of the at least one stereo camera, and representing predetermined working positions and detected actual tool positions and/or actual tool inclinations of the tool of the at least one construction machine in the virtual digital 3D terrain model.

The invention relates to a civil engineering machine, in particular a drilling rig, having a mobile carrier device, a mast or jib arm which is arranged on the carrier device, a civil engineering tool which is arranged adjustably on the mast or the jib arm in order to carry out a civil engineering operation, at least one display device, in particular a monitor, and a control unit which is configured to control components of the civil engineering machine and to detect operating states and, depending on detected operating data, to generate an at least schematic representation of at least one part of the civil engineering machine and to display it by means of the at least one display device, wherein a change in position of the civil engineering tool and/or at least one component of the civil engineering machine is displayed in the at least schematic representation of the one display device. According to the invention it is provided that the control unit is configured to automatically change a display scale and/or a type of representation of the at least schematic representation of the display device in the event of certain changes in position of the civil engineering tool and/or of at least one component of the civil engineering machine.

The invention relates to a method for carrying out a construction measure, in particular a foundation engineering measure, with a construction device, in particular with a foundation engineering machine, which has a plurality of actuation elements and sensors for recording operating states relating to the actuation elements, and with a computer unit, by which recorded parameter values of the sensors are received when carrying out the construction measure. According to the invention provision is made in that for a construction measure a number of different defined process steps are stored, in that from one defined process step to at least one subsequent defined process step a transition takes place as a result of at least one exit rule, wherein to each exit rule at least one characteristic parameter value of at least one sensor is assigned, and in that the recorded parameter values of the sensors are checked as to the exit rules and, if they occur, a transition from an associated defined process step to a subsequent defined process step is detected.

The Invention relates to a mast element, in particular leader element, for a construction machine, with an elongate, hollow mast profile, which is approximately rectangular in cross section and comprises a linear guide for a mast carriage on its outer side along a longitudinal direction of the mast. In addition, according to the invention, at least one diagonal reinforcement element extends within the mast profile along the longitudinal direction of the mast, which is arranged at an oblique angle to the sides of the approximately rectangular mast profile.

The invention relates to a cutting wheel for a diaphragm wall cutter, with a drum-shaped hub, on the outer circumference of which there are arranged receptacles for cutting teeth and at least one holder for a folding tooth, wherein the holder has a bearing pin as a pivot axis for pivotably and releasably holding the folding tooth. According to the invention, it is provided that a fixing device is arranged on the holder and is configured to hold a fixed tooth mounted on the bearing pin in a fixed position.

The invention relates to a measuring arrangement for measuring a position, in particular a verticality, of a vertically adjustable and lowerable working apparatus with respect to an upper fixed point, with at least one measuring cable which is on the one hand connected to the vertically adjustable working apparatus and on the other hand extends towards the fixed point, at least one measuring means which is connected to the corresponding measuring cable and designed to measure an angle of inclination of the measuring cable relative to a vertical measurement axis and is arranged in a connection region between the measuring cable and the working apparatus, and at least one connecting means which is arranged between the measuring means and the working apparatus and designed to keep the measuring means torsion proof about the vertical measurement axis and at the same time capable of being angled with respect to the vertical measurement axis on the working apparatus. According to the invention provision is made in that the connecting means has a connecting tube which is arranged coaxially to the vertical measurement axis, and in that the connecting tube is designed so as to be torsion proof about the vertical measurement axis and deflectable with respect to the vertical measurement axis.

The invention relates to a construction machine having an upper carriage, an undercarriage which has a running gear and on which the upper carriage is rotatably supported about an upright axis, and a feed arm for at least one energy line, with which energy can be supplied from the outside to the construction machine, wherein the feed arm is adjustably supported on the upper carriage. In accordance with the invention at least one drive means for actively adjusting the feed arm relative to the upper carriage is provided.

The invention relates to a mast element, in particular a leader element, for a construction machine, with an elongate hollow mast profile which, at a front side, is provided along a mast longitudinal direction with two guide strips through which a linear guide for a mast carriage is formed along the front side. According to the invention, provision is made that at least one guide strip is designed as part of a guide profile on which at least one connection web is formed in one piece with the guide strip, which connection web extends away from the guide strip, and that, in order to form the hollow mast profile, elongate wall elements are provided which, together with the at least one connection web, form the hollow mast profile and enclose an inner cavity of the mast profile.