Abstract: A sensing device for automatic side guidance of self-propelling agricultural machine provided with a unit for mowing vegetation formed in a row culture with stubble rows on a field, the sensing device has at least one sensor which senses a row of the vegetation by a lateral abutment, a unit for converting a movement of the sensor into electrical control signals, and a control unit receiving the electrical control signals and controlling wheels of the agricultural machine. The sensor is formed as a stubble sensing element.

Abstract: A tandem running gear on a self-propelled agricultural machine, in particular a combine, where in the front a drive axle (1) and on both sides thereof swing arms (3, 3A) are disposed under the chassis (2). The swing arms (3, 3A) can be charged by hydraulic work cylinders (8, 8A) in such a way that a respectively preset wheel load distribution between the drive wheels (5, 5A; 6, 6A) and the steered wheels (7, 7A) is attained using a measuring and control device for the hydraulic device.

Abstract: A grain flow measuring device having a sensor plate, on which a piezo-crystal oscillation sensor is disposed behind an impact surface, behind which an oscillation-damping foam material body is maintained by means of doubly folded-over edges of the sensor plate located at its edges. A retainer plate is seated and an amplifier and evaluation circuit with a readable counter is disposed in the foam material body. Grain flow measuring devices of this type are disposed in a harvester below a rocker tray near its output side, because of which grain losses and false measurements are avoided. Damping of the impact surface by means of the foam material body results is such oscillation damping that the determination of the grain mass results from the detected number of oscillations.

Abstract: The V-belt drive has a drive pulley (1) and a power take-off pulley (2) and an endless V-belt (3) rotating around both pulleys (1, 2). This V-belt drive is equipped with a torque measuring device in that an rpm sensor (4, 5) is assigned to both the drive pulley (1) and the power take-off pulley (2), which continuously detects the pulley rpm, the two rpm sensors (4, 5) are connected with an electronic control (8) which determines the gear ratio between the drive and the power take-off pulleys (1, 2) from the detected rpm, a calibration device (10) which associates a set gear ratio with a defined torque is connected with the electronic control (8), and the electronic control (8) is connected with an electronic evaluator (14).

Abstract: The grain-loss detector according to this invention usable in combination with a harvesting machine having an output passage comprises an impact plate having a front face exposed in the passage for direct contact by crop exiting the machine and an opposite back face and an electroacoustic transducer capable of converting vibration into an electrical output and having a side directly engaging the back face of the impact face. According to this invention the side of the transducer is retained in direct contact with the back face of the impact plate and electronic elements spaced from the transducer serve to convert the output of the transducer into a usable data signal.