| 摘要 |
Disclosed is a distribution device for metering granular material, such as seeds, fertilizer, or the like. The seed drill coulters of this distribution device are supplied with grains from at least one grain storage hopper via respectively separate feed tubes, wherein each of these feed tubes is allocated a metering device and a sensor unit for detecting the grains located in the partial flow. Each sensor unit and each metering device are respectively connected in signaling terms with a central regulating device, which processes the quantities of grains detected in the feed tubes as well as the motor torques measured in the metering devices, and which regulates the grain distances for each metering device by varying the drive speeds of the drives under consideration of target values for the grain distances and/or of target values of a longitudinal distribution of the grains from single, multiple, or all metering devices. |
| 主权项 |
1. A distribution device for distributing material of a granular nature, in particular for granular seeds, fertilizer, or the like, in particular a sowing machine, with an air conveyor unit for generating an air volume flow, at least one metering device arranged downstream of the air conveyor unit for the controllable allocation of the granular material to the air volume flow, at least one conveyor line, which is arranged downstream of the metering device and which is provided at the end with at least one seed drill coulter or with another sowing device for the granular material arranged near ground level or being guided in the soil, with at least one sensor unit for detecting largely all grains from among the granular material being carried in the air stream or in the respective partial flow, as the case may be, and passing this sensor unit, and with a metering unit arranged downstream of this sensor unit, which metering unit is equipped with a conveyor disk or fan disk, which is electromotively settable in rotation at a regulatable rotational speed for the circular movement and/or circulation of the granular material, at least in sections, wherein an electronic regulating device processes at least the electric current consumption of the electric drive motor for the conveyor disk or fan disk rotating within the metering unit for deriving a changing torque of the electric drive motor as well as the electric sensor signals of the at least one sensor unit and generates a control signal thereof for the electric drive motor of the metering unit for the increase or reduction of the drive speed of the rotating conveyor disk or fan disk. |
