A wheel loader comprises a console box and a support component. The console box is disposed on the side of an operator's seat and is able to rotate in the forward and backward direction. The support component has a rotary shaft disposed in the left and right direction under the console box, and rotatably supports the console box around the rotary shaft between an operation position in which the console box is disposed horizontally and a retracted position in which the console box is rotated rearward from the operation position and is disposed at an angle. The location of the center of gravity of the console box is disposed more to the front than the rotary shaft at the operation position, and more to the rear than the rotary shaft at the retracted position.

The disclosure relates to a trench cutter having at least one bearing shield, at least one cutting wheel rotatably mounted on the bearing shield for breaking up soil material, and a suction box arranged radially adjacent to the cutting wheel for sucking liquid containing soil material. At least one adjustable cutting tool is arranged on the cutting wheel where as the cutting wheel rotates, it moves between a folded-in position, which is an axial distance from the bearing shield and can be moved past it, and a folded-out position, which it projects into an area radially adjacent to the bearing shield. The suction box has a recess where in the folded-out position or in the transition between the folded-in position and the folded-out position, the cutting tool moves through the recess. The disclosure also relates to a carrier machine, in particular a cable excavator, having a trench cutter.

The disclosure relates to a trench cutter having at least one bearing shield, at least one cutting wheel rotatably mounted on the bearing shield for breaking up soil material, and a suction box arranged radially adjacent to the cutting wheel for sucking liquid containing soil material. At least one adjustable cutting tool is arranged on the cutting wheel where as the cutting wheel rotates, it moves between a folded-in position, which is an axial distance from the bearing shield and can be moved past it, and a folded-out position, which it projects into an area radially adjacent to the bearing shield. The suction box has a recess where in the folded-out position or in the transition between the folded-in position and the folded-out position, the cutting tool moves through the recess. The disclosure also relates to a carrier machine, in particular a cable excavator, having a trench cutter.

A control system for a work machine having an upper frame rotatably mounted to a lower frame includes a controller configured to limit a maximum speed of the machine when a rotation angle between the upper frame and the lower frame exceeds a first predetermined value.

A control system for a work machine having an upper frame rotatably mounted to a lower frame includes a controller configured to limit a maximum speed of the machine when a rotation angle between the upper frame and the lower frame exceeds a first predetermined value.

A construction machine for special civil engineering has a leader on which an advancing carriage is guided, which carriage has a holder for a work device, in particular a drilling rig or pile-driving implement, and which can be moved along the leader by way of a first advancing cable (upper cable) and a second advancing cable (lower cable), by way of a drive winch or a drive cylinder, wherein the advancing carriage is connected with the advancing cables and wherein at least one of the advancing cables is attached to a fixed point on the leader and/or the advancing carriage, wherein at least one fixed point is formed by a cable tensioner attached to the leader or the advancing carriage. At least one cable tensioner includes a tensioning drum on which an end-side section of an advancing cable is attached with multiple cable windings.

The present invention relates to a work machine, preferably a mobile work machine, having an attachment device, in particular a trench cutter, wherein the attachment device comprises at least two adjustable hydraulic motors for driving independent, individually controllable loads, and wherein the hydraulic supply of the adjustable hydraulic motors takes place by a hydraulic drive unit arranged externally from the attachment device, in particular by a drive unit of the work machine, and wherein the at least two adjustable hydraulic motors of the attachment device are connected to a constant pressure network provided by the hydraulic drive unit.

The invention relates to an installation (10) for making a continuous wall in ground (S), the installation comprising: an excavation machine (14) having a frame (16) with a bottom end (16b); determination means (80) for periodically determining the offset between the frame and a first screen while making a second screen in the ground juxtaposed with the first screen; and correction means (50) for periodically correcting the position of the frame (16) so as to reduce the offset as determined by the determination means between the frame (16) and the first screen (E1), and maintain overlap between the longitudinal side of the frame and the longitudinal side of the first screen in such a manner that the second screen is secant with the first screen (E1) over the entire length of the shorter of the first and second screens, thereby forming the wall that is continuous.

The invention relates to an installation (10) for making a continuous wall in ground (S), the installation comprising: an excavation machine (14) having a frame (16) with a bottom end (16b); determination means (80) for periodically determining the offset between the frame and a first screen while making a second screen in the ground juxtaposed with the first screen; and correction means (50) for periodically correcting the position of the frame (16) so as to reduce the offset as determined by the determination means between the frame (16) and the first screen (E1), and maintain overlap between the longitudinal side of the frame and the longitudinal side of the first screen in such a manner that the second screen is secant with the first screen (E1) over the entire length of the shorter of the first and second screens, thereby forming the wall that is continuous.

The invention relates to a slurry wall grab having a hybrid drive comprising at least one pulley block, at least one hydraulic actuator, and at least one energy store, wherein the hydraulic actuator and the pulley block are configured to open and/or close a grab jaw of the slurry wall grab, and wherein the energy store can be charged by actuating the pulley block.