Wirtgen GmbH

The present invention relates to a mounted earth removal device ( 10 ), comprising: a work drive ( 16 ), which is designed for rotation about a work axis (A), and a device housing ( 12 ) having a support part ( 14 ), on which the work drive ( 16 ) is accommodated, the device housing ( 12 ) having a base structure ( 30 ), of which the support part ( 14 ) forms at least a section, the device housing furthermore having a first side plate ( 18 ) and a second side plate ( 70 ) running crosswise to the work axis (A), the first side plate ( 18 ) and the second side plate ( 70 ) respectively have a first and a second ground contact section ( 76 ), each ground contact section ( 36, 76 ) contacting the earth during earth removal work, and being accommodated relative to the base structure ( 30 ) so as to be translatorily displaceable crosswise to the work axis (A) and swivable about a swivel axis (P 1 , P 2 ). The invention provides that at least one side plate ( 18, 70 ) includes a lift component ( 32, 72 ) displaceable relative to the base structure ( 30 ) in translatory fashion crosswise to the work axis (A) and a swivel component ( 34, 74 ) that is displaceable together with the lift component ( 32, 72 ) in translatory fashion and that is swivable relative to the lift component ( 32, 72 ) about the swivel axis (P 1 , P 2 ), the ground contact section ( 36, 74 ) of the side plate ( 18, 70 ) being indirectly connected to the lift component ( 32, 72 ).

A self-propelled construction machine includes a DGNSS rover unit including a computing and evaluation unit, configured such that, on the basis of satellite signals and correction signals of a reference station, construction machine position data describing the position of a construction machine reference point are determined. The computing and evaluation unit generates at least one machine-readable data set, in particular a QR code, which is shown on a display for a reference station position data set stored in a reference station position data memory device. The QR code can be scanned with a smartphone on which a map service with a navigation function is installed, so that the setup point on which a reference station is to be set up can be easily found on the site. In an alternative embodiment, the data can also be scanned using an NFC receiving unit (NFC reader) based upon RFID technology.

The invention relates to a self-propelled ground-processing machine—in particular, road-milling machine—which has a machine frame 3 supported by running gears; and a ground-processing device—in particular, milling drum 10 —arranged on the machine frame 3 ; and lifting devices 4 A, 5 A, 6 A, 7 A assigned to the running gears 4, 5, 6, 7 . The ground-processing machine is characterized by a transverse inclination model determination device 17 which provides, in a preceding working process, the information, required for performing a working process following the preceding working process, with respect to the transverse inclination α to be set of the machine frame 3 or the milling drum 10 , so that the subsequent processing process can be performed even if a suitable reference surface for determining distance values for a milling-depth control is not present on one side of the processed route portion. Furthermore, the invention relates to a method for controlling a ground-processing machine and to a method for processing the ground with one or more self-propelled ground-processing machines.

The method includes creating a self-learning system wherein, for each of numerous milling tasks, respective correction factors are determined for milling task specifications, and actual work effort is compared to estimated work effort which is based on sensed and recorded values for milling machine operating parameters and material parameters, the milling task specifications, and the corresponding correction factors. The correction factors are adjusted over time to account for determined deviations between actual and estimated work effort for a given combination of milling task specifications, machine operating parameters, and material parameters. During execution of a current milling task, respective correction factors are determined for milling task specifications, by reference to the self-learning system, and a work effort is estimated for the current milling task based on at least the correction factors. Operation settings are further adjusted and used for milling machine control based on the estimated work effort.

In the method for milling off traffic areas with a milling drum of a milling machine, the following steps are provided: obtaining and storing target profile data (x, y, Ft (x,y) ) of a desired target profile ( 8 ) of a surface of the traffic area ( 3 ) in target condition, wherein target values (Ft (x,y) ) for a locally desired milling depth (Ft), which are specified relative to the surface of the traffic area ( 2 ) to be worked, are assigned to position data (x, y) in an in particular stationary coordinate system independent of the milling machine ( 6 ), determining the current x, y position of the milling drum ( 4 ) in the coordinate system and detecting the milling depth (Ft′) of the milling drum ( 4 ) currently adjusted relative to the surface of the traffic area ( 2, 3 ), during the milling operation, controlling the milling depth (Ft) of the milling drum ( 4 ) as a function of the target value (Ft (x,y) ) for the locally desired milling depth (Ft) assigned to the current x, y position of the milling drum ( 4 ) and the currently detected milling depth (Ft′), updating the target profile data (x, y, Ft (x,y) ) in the current position (x, y) of the milling drum ( 4 ) on the worked traffic area ( 3 ) by the currently actually milled milling depth (Ft), and storing the updated target profile data (x, y, Ft (x,y) ).

A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns adjustable to adjust a longitudinal inclination of the machine frame in a paving direction. A slip form mold is supported from the machine frame. The machine further includes a front stringline sensor, a front sensor actuator arranged to adjust a vertical position of the front stringline sensor relative to the machine frame, a rear stringline sensor, and a rear sensor actuator arranged to adjust a vertical position of the rear stringline sensor relative to the machine frame. A controller is configured to send command signals to the front and rear sensor actuators to cause an adjustment in the longitudinal inclination of the machine frame.

A method for determining a reference station setup point for setting up a reference station includes moving a construction machine to a waypoint. At this waypoint, position data describing the position of a construction machine reference point on the construction machine are determined on the basis of the satellite signals of a global navigation satellite system and the correction signals of a reference station already set up on site in the vicinity of the earthmoving machine. The position data describing the position of the reference station setup point are determined based on the position data describing the position of the construction machine reference point on the construction machine at this waypoint and on the basis of a specified spatial relationship between the construction machine reference point and the point specified as the reference station setup point on the ground surface.

In a self-propelled construction machine, in particular road milling machine, stabilizer, recycler or surface miner, comprising at least one machine frame, at least one working device, in particular milling drum, arranged on the machine frame for working a ground pavement, at least three travelling devices, which are connected to the machine frame via lifting columns, wherein the lifting columns are designed for the purpose of raising or lowering the machine frame relative to the travelling devices, at least one driving device for driving the at least three travelling devices, it is provided that at least two sensors per travelling device are arranged on the respective lifting columns, wherein the sensors are designed to each detect one parameter, which corresponds to the load acting on the travelling device.

The present invention relates to a self-propelled earth working machine ( 10 ) for removing material and/or changing a density of ground material and/or changing a ground surface (AO) and/or applying material onto a ground area (U), the earth working machine ( 10 ) comprising: a machine frame ( 12 ), a traveling gear ( 22 ) supporting the machine frame ( 12 ), a working apparatus ( 32 ) for earth working, a power source ( 39 ) for supplying power to at least one functional module, comprising the working apparatus ( 32 ) and a travel drive, the earth working machine ( 10 ) comprising an operator's platform ( 24 ) having a canopy ( 44 ) having a variable canopy area ( 54 ). The invention provides for the canopy area ( 54 ) to be variable in the longitudinal machine direction (L).

Methods and apparatus for controlling edge slump in newly formed concrete structures formed by a slip form paving machine. An edge height sensor generates an edge height signal corresponding to a height of an edge of the newly formed concrete structure to thereby detect a slumping of the edge of the newly formed concrete structure behind a slip form paver mold. A controller receives the edge height signal, determines whether any slumping of the edge of the newly formed concrete structure exceeds a set slump limit, and automatically controls an actuator assembly at least in part in response to the edge height signal to adjust the height of a lateral edge portion of a mold bottom plate relative to an interior portion of the mold bottom plate and thereby adjust the height of the edge of the newly formed concrete structure.