Abstract: The invention relates to a civil engineering machine for spreading material for spreading on soils or base materials, and in particular to a civil engineering machine for spreading binders for soil or base material stabilization, which has a container (3) for material for spreading to receive the material for spreading and a spreading arrangement (5) having one or more outlet openings for the discharge of the material for spreading. The invention relates in this case both to a civil engineering machine which is intended solely for discharging the binder and to a civil engineering machine, and in particular a stabilizer or recycler, which has a milling or mixing rotor by which, directly after the discharge, the binder can be mixed into the soil or base material which has been milled up.

Abstract: An automotive road milling machine, in particular large milling machine, for milling a ground surface or traffic surface, with a chassis provided with a front axle and a rear axle, consisting of crawler track units or wheels, a machine frame carried by the chassis with lateral outer walls and a longitudinal center-line, a milling drum supported at the machine frame between the crawler track units or wheels of the front axle and the rear axle, where one front end of the milling drum reaches as far as an outer side of the machine frame called the zero side for the purpose of close-to-edge milling, and an operator station with a platform for the machine operator, it is provided that the part of the machine frame located on the zero side in front of the platform of the machine operator when seen in the direction of travel is set back inwards in such a manner that a recess running in vertical direction and open towards the outer side, as well as towards the bottom and towards the top is formed in the machine frame

Abstract: In a jolting device (1) for a construction machine, particularly for a slip-form paver, comprising a housing (18), a vibration generator (19) arranged in the housing (18), and a fastening means (10) including at least one coil spring (8) having a plurality of spring windings, with said fastening means (10) being operative for fastening the housing (18) to the construction machine, it is provided that the interspaces between the spring windings of said at least one coil spring (8) are closed or at least partially filled towards the interior by an elastic element (22).

Abstract: A construction machine for the treatment of ground surfaces includes a machine frame, a drive motor, a work drum supported from the machine frame and including exchangeable tools fastened to the work drum, a belt drive and an auxiliary drive. The belt drive includes a motor-side pulley connected to the drive motor, a drum-side pulley connected to the work drum, and at least one drive belt connecting the motor-side pulley to the drum-side pulley. The auxiliary drive may be permanently coupled to the belt drive, or the auxiliary drive may include an adjustment mechanism for moving the auxiliary drive between a coupled and an uncoupled position.

Abstract: A construction machine for the treatment of ground surfaces includes a chassis carrying a machine frame, a driveable work drum supported from the machine frame and including an outer surface and exchangeable tools fastened to the outer surface, a working space defined within the machine adjacent the work drum, and at least one seat for an operating person, the at least one seat being movable into a working position in the work space adjacent the work drum so that the operating person can exchange the tools on the work drum.

Abstract: A replaceable wear pad for a crawler track of a tracked vehicle includes base plates for fastening thereto wear pads in a detachable manner, the wear pad includes a tread and a bottom side lying opposite to the tread and facing the base plate, the wear pad containing at least one reinforcing element, and the reinforcing element being molded-in by the wear pad material, the reinforcing element includes at least two holes and the wear pad includes cavities that run coaxially to the holes of the reinforcing element and, coming from the bottom side, end above the reinforcing element and at a distance to the same with the cavities serving the purpose of accommodating fastening devices which are fastened to the reinforcing element of the wear pad.

Abstract: A construction machine (1) with a machine frame (2) and lifting columns (8) carrying crawler track units (4). The lifting columns (8) include consoles (10) coupled in pairs to the machine frame (2) by articulations (20, 22, 24, 26) and a coupling rod (18). The mutual distance of the articulations (20, 24; 22, 26) on a console (10) is of a length and/or the coupling rod (18) is of a shape that, when the crawler track units (4) swivel between limit positions of a swivel gear (14), the coupling rod (18) maintains a distance to the articulations (20, 22) facing the machine frame and/or to the lifting columns (8) over a swivelling angle range in excess of 90°, starting from the working position. The swivel gear (14) effects both the steering and the swivelling movements respectively in and from a transport position (5) to the working position and back.

Abstract: The invention relates to a road-milling machine which has a ladder 11 to allow the driver's position 7 of the civil engineering machine to be climbed to easily. The ladder is mounted on one 1B of the two longitudinal sides of the frame 1 of the machine to be pivotable about an axis of pivot 27 extending substantially at right angles to the direction of travel. The ladder can thus be folded upwards to widen the working range of the machine. However, should the ladder not be in a state where it is folded upwards while the machine is being used to do work, the ladder cannot be damaged against obstacles which suddenly make an appearance in the working range. Should the ladder hit against an obstacle, the ladder is able to move out of the way of the obstacle by pivoting out of the vertical position in the opposite direction to the direction of travel.

Abstract: A back-lit operating unit for construction machinery includes a front panel having a plurality of cut-outs. Operating components are received in thecut-outs. A lighting device is arranged behind the front panel. The front panel has a sandwich construction including a carrier panel, a transparent mounting panel located on a front of the carrier panel, and a transparent film located on a front of the mounting panel.

Abstract: In a construction machine 1 for the treatment of ground surfaces, comprising a chassis 2 carrying a machine frame 4, a drive motor 6, a work drum 8 supported on the machine frame 4 and having exchangeable tools 14 fastened to its outer surface 12, and a drive line 18 for the work drum 8 comprising at least the drive motor 6 and a transmission coupled to the drive motor 6, it is provided that an auxiliary drive 20, adapted to be coupled to the drive line 18, is arranged to rotate the work drum 8 in the raised condition of the drum by a predetermined or selectable rotational angle, the torque of the auxiliary drive 20 being higher than the moment of inertia of the work drum 8 and of the drive line 18 in the switched-off or decoupled state of the drive motor 6.

Abstract: The construction machine according to the invention is distinguished by the fact that an air-processing apparatus (28) is arranged outside the cab (9) on the machine frame (2), wherein a device (13, 22) for feeding processed and/or fresh air into the cab and used air from the cab is provided, said device having a feed air duct for processed air for the cab and a discharge air duct for used air from the cab. The feed air duct of the air-processing apparatus (13, 22) is connected to the outlet (28C) of the air-processing apparatus (28) and the discharge air duct is connected to the inlet (28B) of the air-processing apparatus. In a construction machine whose control station is rotatably arranged on the machine frame, the arrangement with the air-processing apparatus outside the cab has the decisive advantage that it is not necessary to run hoses and/or lines between the rotatable cab and the machine frame.

Abstract: A replaceable wear pad apparatus for a crawler track of a construction machine includes an elongated reinforcing element having first and second sides. The reinforcing element includes first and second holes disposed therethrough and includes first and second polygonal cross section sockets defined therein on the first side of the reinforcing element co-axial with the first and second holes, respectively, each socket including a socket floor and multiple sides. First and second polygonal cross section nuts are received in the first and second sockets, each nut having a threaded bore co-axial with one of the holes. A wear pad is molded from a wear pad material, the reinforcing element and the nuts being embedded in the molded wear pad material so that the wear pad material holds the nuts in place within the sockets.

Abstract: In a folding transport conveyor (2) for a construction machine (1), with a first transport conveyor section (4) articulated at the construction machine (1), a second transport conveyor section (6) articulated at the first transport conveyor section (4) in a pivoting fashion, with a conveyor belt (10) continuously revolving around both transport conveyor sections (6), and with at least one pivoting mechanism acting between the transport conveyor sections (4, 6), it is provided that the pivoting mechanism includes a cam mechanism (12).

Abstract: A tool holder including a tool box with a tool seat in a holding projection for receiving a tool in such a manner that it can be replaced. The tool seat is configured as a bore and has a tool insertion opening. The tool holder has a fastening side with a fastening projection and, facing away from said fastening side, an exterior, and during use of the tool centrifugal forces are effective in the direction from the fastening side to the exterior. This invention ensures the free rotatability of a tool inserted in the tool holder even if overburden material enters the tool seat. For this purpose, the holding projection has an opening penetrating the inner wall of the tool seat and creating a spatial connection to the exterior, and the opening opens the tool seat towards the exterior.

Abstract: A fixing device for a shank chisel including a base part to which a chisel holder is attached in a manner that enables it to be exchanged. The chisel holder has a chisel location for the shank chisel and has a supporting face on which the shank chisel can be supported. The chisel holder is coupled to the base part by a pivot bearing, and the chisel holder rests against a mating face of the base part. This invention provides a stress-optimized design for the above-mentioned arrangement. Thus, according to this invention, when the chisel holder is mounted, a contact area formed between the contact face and the mating face is located between a rotation axis or a rotation path of the pivot bearing and the supporting face.

Abstract: An automotive construction machine for working ground surfaces, with a machine frame, a drive engine for driving traveling devices and for driving working devices, and a milling drum for milling the ground surfaces, which can be raised, driven by, and can be uncoupled from a drum drive, the milling drum can be moved into a raised position when not in milling mode, and when raised, the rotating direction of the milling drum corresponds to the rotating direction of the traveling devices and remains coupled with the drive engine, and a monitoring device monitors the distance between the milling drum and the ground surface and uncouples the raised milling drum from the drive engine or uncouples the traveling devices from the drive engine or raises the machine frame or generates an alarm signal when the monitoring device detects a deviation that falls below a pre-determined distance, or any of the latter.

Abstract: A construction machine, in particular road milling machine, recycler or stabilizer, with a machine frame (4) that is carried by a chassis (2) with a working drum (6) and a drive train (8) comprising at the least a drive engine (10), a traction mechanism (12) for the mechanical drive of the working drum (6) with a drive element, an output element and a traction element (30), a device (14) for switching the torque between the drive engine (10) and working drum (6), and device (16) for driving at least one hydraulic pump; it is provided that elements of the drive train (8) are divided into at least two groups, the first group (3) shows at least the drive engine (10), the second group (5) shows at least the drive element (11) of the traction mechanism, and where the first and the second groups (3, 5) are connected to one another via an articulated coupling device (20).

Abstract: The invention relates to a self-propelled machine for cutting or milling, and in particular to a machine for working deposits, such for example as deposits of coal, ore, minerals, etc., by surface mining, which has a chassis (1), which is carried by track-laying units or wheels and which has a cutting or milling arrangement (2) and an arrangement (8) for adjusting the height of the chassis to set the depth of cutting or milling. The machine according to the invention is characterised in that the driver's station (10) is not fixed on the chassis of the machine but on a component (8C) of the height-adjusting arrangement (8) which is connected to the chassis in such a way as to be able to move. The basic principle of the machine according to the invention is that the driver's station is decoupled from the shaking movements or vibrations from the arrangement (2) for cutting or milling which are transmitted to the chassis, and from the vibrations from the internal combustion engine for driving the machine.

Abstract: A cutting tool of a cutting machine having a base part and a bit holder. According to this invention, the bit holder has a plug-in attachment, retained in a socket of the base part that has a stop against which the bit holder rests. To prevent the penetration of water and stone dust and to allow the bit holder to be easily detached from the base part, a sealing element is located between the bit holder and the base part, surrounding at least sections of the socket.