An agricultural system including an agricultural baler and a control unit. The agricultural baler includes a drive system; a bale chamber defined by at least one movable density door; and at least one actuator for moving the at least one density door. The control unit is configured to: receive a routine-trigger-signal; determine an actuator-control-signal for adjusting a speed at which the at least one actuator moves the at least one density door in response to the routine-trigger-signal; and provide the actuator-control-signal to the drive system for driving the at least one actuator.

A square baler includes a compression chamber, a reciprocating plunger configured to compress bale material in the compression chamber to make a square bale, and a feeding system configured to feed bale material into the compression chamber. The feeding system includes a feeding duct having an input end and an output end, a feeding fork configured to perform a loading stroke to pre-compress bale material in the feeding duct and a feeding stroke to transfer bale material from the feeding duct into the compression chamber. A drive mechanism is provided for driving movement of the feeding fork. The drive mechanism is adjustable to control the length and/or the speed of the loading stroke.

An agricultural system including an agricultural baler and a control unit. The agricultural baler includes a baler driveline; a rotatable flywheel; and a rotary input shaft connected by way of the baler driveline to the rotatable flywheel. The driveline includes one or more clutches for controllably transferring rotary drive between the input shaft and the flywheel. The control unit is configured to receive input-power-data indicative of a drive power available at the rotary input shaft; and determine a clutch-control-signal for controlling an amount of torque transferred from the input shaft to the flywheel bye the one or more clutches, based on the input-power-data.

An agricultural system including an agricultural baler including a rotary input shaft connectable by way of a baler driveline to a rotatable flywheel; a hydraulic pump for supplying the agricultural baler with hydraulic fluid, the rotatable flywheel being connectable to the hydraulic pump via the driveline. The baler is transferrable between a first state for driving the hydraulic pump by external drive power provided by a corresponding work vehicle, and a second state for driving the hydraulic pump by the rotatable flywheel. The agricultural system further includes a control unit that is configured to: receive input-power-data indicative of a drive power available for driving the hydraulic pump in the first state of the baler; and determine a control-signal for transferring the baler into the second state, if the input-power-data indicates that the available drive power is insufficient for driving the hydraulic pump.

An energy storage arrangement includes a shaft for transmitting torque, a housing, an actuator configured to be axially moved, a freewheel disposed between the shaft and actuator and fastened to the shaft, the freewheel being configured to transmit no torque in one rotational direction, an energy store configured to store torque, a support element, an outer coupling between the housing and the support element, and an inner coupling between the support element and the shaft.

An agricultural baler includes a baling chamber with a plunger that is provided to reciprocally move in the baling chamber. The baler further includes a pre-compression chamber with a slice pushing mechanism provided for periodically pushing a slice of crop material into the baling chamber. The plunger and the slice pushing mechanism are mechanically linked via respective driving systems to ensure synchronization, wherein a coupling is mounted in the mechanical link to adjust a synchronization timing.

An agricultural harvesting machine for crop material including a crank arm connected to a rotational power source, a plunger having an extended position which is located further rearward in a compression chamber than a retracted position, and a connecting link connected between the crank arm and the plunger. The movement plunger is decoupled from the movement of the crank arm during a startup mode of the agricultural harvesting machine. The movement plunger is coupled to the movement of the crank arm during a run mode of the agricultural harvesting machine. The connecting link, crank arm, or both have a variable length.

An agricultural harvesting machine for crop material may include a crank arm connected to a rotational power source, a plunger having an extended position which is located further rearward in a compression chamber than a retracted position, and a connecting link connected between the plunger and the crank arm, with one of the connecting link and the crank arm having a variable length. The agricultural harvesting machine may include a startup mode and a run mode. The movement of the plunger can be decoupled from the movement of the crank arm at the beginning of the startup mode. The plunger can move to a predetermined position during the startup mode. The movement of the plunger can be coupled to the movement of the crank arm during the run mode.

An agricultural baler has a plunger for compressing harvested material to a bale in a chamber, a crank mechanism connected to the plunger for the purpose of driving the plunger, wherein the crank mechanism comprises at least one first crank and at least one second crank, a drive mechanism for driving the first crank and the second crank, wherein the drive mechanism is configured such that, when the first and second crank are driven, the first crank and the second crank rotate in opposite directions.

A baler including a baling chamber that includes a bale-forming channel including an inlet end and an outlet end, a plunger mounted within the channel for compressing bale material in the channel and driving the compressed bale material towards the outlet end of the channel, and a rotary drive mechanism for driving reciprocating movement of the plunger, and an additional drive mechanism for driving the compressed bale material towards the outlet end of the channel, thereby reducing torque in the rotary drive mechanism.