Agricultural working device

A method for setting a position of a cutting rail of an agricultural working device relative to a working rotor of the working device, the method comprising:

• providing an agricultural working device comprising a drive shaft, a working rotor, a cutting rail with a cutting edge, sensors for acquiring parameters of the working rotor or parameters of the cutting rail, at least one actuator element to set the position of the cutting edge and an electronic control apparatus, the working rotor being driven by the drive shaft, the working rotor comprising a rotor shaft, the cutting edge being directed towards the working rotor, the sensors comprising rotational speed sensors;
• measuring a rotational speed of a drive shaft and the rotational speed of a rotor shaft of the working rotor via the rotational sensors;
• comparing the measured rotational speed of the drive shaft and the rotational speed of the rotor shaft of the working rotor with one another via the electronic control apparatus;
• and
• changing the position of the cutting rail via at least the electronic control apparatus when the ratio of the rotational speed of the drive shaft and the rotational speed of the rotor shaft of the working rotor differs beyond a predefined threshold.

An agricultural system for processing biomass, such as parts of plants, the agricultural system comprising:

• a drive;
• and
• an agricultural working device connected to the drive for being moved thereby, the agricultural working device comprising a drive shaft, a working rotor, which is driven by the drive shaft, the working rotor comprising a rotor shaft, a cutting rail with a cutting edge directed towards the working rotor, sensors for acquiring parameters of the working rotor or parameters of the cutting rail or parameters of the working rotor or parameters of the cutting rail, the sensors comprising rotational speed sensors for determining a rotational speed of the drive shaft and determining a rotational speed of the rotor shaft of the working rotor, at least one actuator element to set the position of the cutting edge and an electronic control apparatus, wherein the system has a common control apparatus, the electronic control being configured to:
• compare the rotational speed of the drive shaft and the rotational speed of the rotor shaft of the working rotor with one another;
• and
• change the position of the cutting rail when the ratio of the rotational speed of the drive shaft and the rotational speed of the rotor shaft of the working rotor differs beyond a predefined threshold.