Loss amount detection device and method for grain harvesting machine

Abstract

The invention provides a loss amount detection device and method for a grain harvesting machine. The loss amount detection device is installed in any one region below a mixture discharge position at the tail of a cleaning sieve, grain information is collected by the loss amount detection device, and the actual grain weight V0 is obtained; according to the detected actual grain weight V0, the gridrectangular small area occupied by the loss amount detection device, and a mathematical model between the grid rectangular small area and the total cleaning loss, the actual grain loss amount Vs is obtained. Based on the sensor technology and the computer technology, a mechanical method and a scientific mathematical model are combined, the loss amount detection device for the grain harvesting machine is designed, real-time monitoring of the cleaning loss amount is achieved, a traditional manual cleaning mode is changed, and a lot of labor and material resources are saved.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a detection device for grain collection, in particular to a detection device and a detection method for the loss of a grain harvester. Background technique [0002] The cleaning device of the combine harvester generally adopts an air screen structure, which is mainly composed of a cleaning fan and a vibrating screen. During the harvesting process, the cleaning fan of the combine harvester and the vibrating screen work together to separate the grain from the miscellaneous. The grain grains enter the granary, and the miscellaneous part is discharged with the fan, but it is inevitable that a small amount of grain will be mixed in the miscellaneous was discharged. At present, the cleaning loss rate is one of the important indicators to measure the performance of combine harvesters. Therefore, it is of great significance to accurately and real-time monitor the loss rate of grai...

AI Technical Summary

Problems solved by technology

[0003] So far, the detection of the cleaning loss rate of combine harvesters mainly relies on manual cleaning and separation, which is not only heavy work but also consumes a lot of manpower, and it cannot realize real-time monitoring

Although some scholars have used the sensor detection method to monitor the cleaning loss rate, it is difficult to achieve the ideal accuracy due to the operating conditions and the influence of the harvester itself. In fact, it is necessary to accurately detect the loss of the combine harvester. Solved technical problems

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