The invention relates to a planning system and method for operating one or more road milling machines. In that context, material properties of a road are captured and are geographically associated with one or more roads or road segments. Based on the material properties, an expected milling output of a road milling machine is ascertained, in the context of carrying out milling tasks on the road, or an expected wear on the milling tools. An optimized sequence of milling tasks to be carried out is created on the basis of those data. Accordingly, the invention may enable optimized deployment of the one or more road milling machines and of resources necessary for carrying out the road milling tasks. Aspects of the planning system may be remotely implemented for centralized application with respect to each of the road milling machines, or locally implemented for individual road milling machines.

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.

A compactor machine includes a machine frame, at least one cylindrical roller drum rotatably coupled to the machine frame and rotatable about a drum axis oriented generally transverse to a direction of travel of the compactor machine, and a first light attached to the machine frame, the light shining a line of light on a surface that indicates a location of an edge of the roller drum.

A method for coupling a machine frame (12) of an earth working machine (10) to a working device (28) between the machine frame (12) and a substrate (U) encompasses the following steps: arranging the machine frame (12) and the working device (28) between the machine frame (12) and the substrate (U); aligning the receiving portion (42) and working device (28) relative to one another in such a way that fastening formations (56, 60) of the working device (28) are lined up, along a spacing direction, with fastening counter-formations (58, 62) of the machine frame (12); bringing the fastening formations (56, 60) and fastening counter-formations (58, 62) closer to one another; and operably fastening the working device (28) onto the receiving portion (42). According to the present invention the aligning step encompasses the following sub-steps: connecting the machine frame (12) and the working device (28) to one another by means of a connecting apparatus (76), in such a way that the working device (28) is movable in response to its weight, parallel to the effective direction of gravity (g) and orthogonally thereto, relative to the machine frame (12); then allowing the working device (28) to hang on the machine frame (12); and then supporting the working device (28).

A plow system includes a mounting structure configured to mount at a vehicle, with a center plow pivotally attached at the mounting structure. The center plow is pivoted in a first direction responsive to actuation of a first actuator and is pivoted in a second direction responsive to actuation of a second actuator. A first plow wing is pivotally mounted at a first end of the center plow and a second plow wing is pivotally mounted at a second end of the center plow. Responsive to pivoting of the center plow to a first fully pivoted orientation toward a first side of the vehicle, the first and second plow wings both pivot to a forward orientation. Responsive to pivoting of the center plow to a second fully pivoted orientation toward a second side of the vehicle, the first and second plow wings both pivot to a rearward orientation.

A plow system includes a mounting structure configured to mount at a vehicle, with a center plow pivotally attached at the mounting structure. The center plow is pivoted in a first direction responsive to actuation of a first actuator and is pivoted in a second direction responsive to actuation of a second actuator. A first plow wing is pivotally mounted at a first end of the center plow and a second plow wing is pivotally mounted at a second end of the center plow. Responsive to pivoting of the center plow to a first fully pivoted orientation toward a first side of the vehicle, the first and second plow wings both pivot to a forward orientation. Responsive to pivoting of the center plow to a second fully pivoted orientation toward a second side of the vehicle, the first and second plow wings both pivot to a rearward orientation.

A mounting block assembly and method for assembling is disclosed. The mounting block assembly may comprise a mounting block and a toolholder. The mounting block may include a flighting portion, a mounting portion and a protrusion. The mounting portion defines a first bore that is configured to receive a toolholder. The toolholder includes a generally cylindrical sidewall that defines an axis and defines a second bore that is configured to receive a stem of a cutting bit. The sidewall includes a pair of radially outward extending prongs that define a first recess between the prongs. The first recess is configured to interlockably receive the protrusion when the toolholder is disposed in the mounting portion, wherein the interlocked configuration of the toolholder and the mounting block inhibit rotational movement of the toolholder about the axis.

In an automotive milling machine, comprising a machine frame, comprising a controller for the travelling and milling operation, comprising a working drum, comprising a transport conveyor, where the transport conveyor is slewable, relative to the machine frame, about a first axis extending essentially horizontally under an elevation angle, and sideways about a second axis extending orthogonally to the first axis under a slewing angle, where the transport conveyor discharges the milled material onto a loading surface of a transport vehicle at a specified conveying speed, and where the controller continuously controls positioning of the milled material automatically via, as a minimum, the slewing angle of the transport conveyor, it is provided for the following features to be achieved: the controller specifies and monitors limit values for a maximum permissible slewing angle range for slewing the transport conveyor variable in accordance with the current operating situation.

In an automotive milling machine, comprising a machine frame, comprising a controller for the travelling and milling operation, comprising a working drum, comprising a transport conveyor slewable relative to the machine frame, where the transport conveyor discharges the milled material onto a point of impingement on a loading surface of different transport vehicles, where the controller comprises a detection and control unit which monitors the alterable position of the loading surface of the transport vehicle by an image-recording system comprising no less than one sensor which continuously generates no less than one digital image of, as a minimum, the loading surface, it is provided for the following features to be achieved: the detection and control unit comprises an analysis device which detects faults or errors in the image generated by the no less than one sensor.

The present invention relates to a self-propelled ground milling machine, comprising a drive engine arranged in an engine compartment and an engine compartment enclosure which covers the engine compartment at least partly to the sides and to the top. A part of the engine compartment enclosure is a cover which is adjustable between a covering position and a maintenance position. At the same time, a maintenance platform is provided which is movable between a stowage position and a maintenance position. When the maintenance platform is in the maintenance position, an operator standing on the floor surface of the maintenance platform can carry out maintenance work in the engine compartment of the self-propelled ground milling machine. The self-propelled ground milling machine preferably is a road milling machine, more particularly a large milling machine, a surface miner, a stabilizer or a recycler.