The invention relates to an actuating unit for locking a component of a construction machine, in particular a road milling machine or a surface miner, the actuating unit comprising a retaining part 26 for fastening to the construction machine.

Furthermore, the invention relates to a self-propelled construction machine, in particular a road milling machine or a surface miner, comprising at least one actuating unit of this type. The basic principle of the actuating unit according to the invention is the design of the cylinder of a piston/cylinder arrangement as a locking bolt. In the actuating unit according to the invention, a piston 27 is connected to the retaining part 26 and is surrounded by a cylinder 30, with a first cylinder chamber 31 being formed on one side of the piston and a second cylinder chamber 32 being formed on the other side of the piston. A cut-out 33 which extends in the direction of the longitudinal axis of the cylinder and through which the retaining part 26 extends is provided in the cylindrical wall of the cylinder 30. If one of the two cylinder chambers 31, 32 is supplied with a fluid, the cylinder 30 moves to one side or the other, while the retaining part 26 remains stationary. Therefore, the cylinder 30 constitutes a locking bolt, which can be pushed forward or pulled back.

A stand is disclosed for supporting a moldboard and a drawbar of a grading machine. The stand may comprise a base frame and a component support unit. The said stand may be configured to support the moldboard, and the component support unit may be configured to support at least a portion of the drawbar. The base frame and the component support unit may be configured to: (a) support a substantial portion of the moldboard above the base frame; and (b) support a substantial portion of the drawbar above the base frame and the moldboard when the moldboard is supported on the stand.

A grading machine includes a machine body, a grading blade, and a control system. The control system is configured to automatically set at least one machine parameter of the grading blade based on a determined location of the grading machine and automatically set a mode of operation of the grading machine based on a determined location of the grading machine.

A computer-implemented method for automatically adjusting a moldboard of a motor grader can include receiving one or more identifiers corresponding to a configuration of the motor grader, and determining, based on the received identifier(s), a first orientation of the moldboard. If the first orientation is not within an operating threshold, the method can further include selecting, based on the one or more identifiers, at least one of a plurality of actuators of the motor grader; and actuating the selected actuator(s) to move the moldboard from the first orientation to a second orientation within the operating threshold.

Detecting a surface irregularity on a surface for a vehicle moving forwardly or rearwardly along the surface, the vehicle having a frame supported by wheels and an implement adjustably coupled to the frame. Two of front and rear steering positions and an implement position are used to determine a path of travel of the vehicle. Surface irregularities of the surface within the path of travel are determined which triggers a warning to the vehicle. The speed of the vehicle can be decreased automatically to stop the vehicle before the vehicle impacts the surface irregularity. A vehicle zone of operation is determined based on the path of travel and a corresponding pair of gridlines is displayed on user interface. The pair of gridlines vary in shape, color, position, and orientation as the path of travel changes. The surface irregularity is illuminated relative to the pair of gridlines on the operator display.

Disclosed is a method for automatically controlling a blade of a motor grader. At least one global navigation satellite system (GNSS) antenna and at least one inertial measurement unit (IMU) are mounted on the motor grader. No GNSS antenna is mounted on the blade; and no pole is used for mounting. With each GNSS antenna, GNSS navigation signals are received, and a position of each GNSS antenna is computed. With each IMU, three orthogonal accelerations and three orthogonal angular rotation rates are measured. With at least one processor, a blade position and a blade orientation are computed, based at least in part on the GNSS and IMU measurements. The blade elevation and the blade slope angle (and, in some embodiments, the blade side shift) are automatically controlled, based at least in part on the computed blade position, the computed blade orientation, and a digital job site model.

A controller for a work machine may cause increasing of an angle of a ground-engaging implement of the work machine while maintaining a distance between a trailing edge of the ground-engaging implement and a center line of the work machine. The controller may detect that the work machine has traveled a particular distance from a location of the work machine at a time of increasing of the angle of the ground-engaging implement. The controller for the work machine may cause the work machine to steer away from a windrow based on detecting that the work machine has traveled the particular distance.

Systems to control movement of a motor grader include a sensor for providing a bounce signal indicative of a bouncing movement of the motor grader, and a controller programmed with instructions that, when executed: receive the bounce signal from the sensor; analyze the bounce signal from the sensor; determine whether the maximum amplitude of the bouncing movement exceeds a threshold; in response to determining whether the maximum amplitude exceeds the threshold, generate an articulation angle command signal to change an articulation angle of the motor grader; and transmit the articulation angle command signal to change the articulation angle.

A grading machine includes a machine body, a grading blade supported by a circle, a drawbar connecting the grading blade and the circle to the machine body, and a circle drive system. The circle drive system includes a circle drive motor and a gear box. The gear box is configured to engage with and rotate the circle relative to the drawbar around a circle axis. The circle drive motor includes an axis of rotation that is perpendicular to the circle axis, and the gear box includes an axis of rotation that is parallel to the circle axis.

A control system for a work vehicle has a controller configured to adjust first and second actuators for moving first and second sides of an implement relative to the work vehicle. A first operator control provides a first incremental input to the controller corresponding to a first incremental adjustment of the first actuator effecting a prescribed change in position of the first side of the implement. A second operator control provides a second incremental input to the controller corresponding to a second incremental adjustment of the second actuator effecting a prescribed change in position of the second side of the implement. At least when in a manual control mode, the incremental change in position of the first side of the implement is independent of the incremental change in position of the second side of the implement.