Combine harvester self-adaptive cleaning control device and self-adaptive cleaning method thereof

Abstract

The invention relates to a combine harvester self-adaptive cleaning control device and a self-adaptive cleaning method thereof. The control device comprises a return stroke board, a cleaning screen, a cleaning centrifugal fan, an impurity collection auger, a grain collection auger, a cleaning grain loss monitoring sensor, an automatic grain tank grain impurity rate monitoring device and an online monitoring and control system. The online monitoring and control system is connected with the cleaning grain loss monitoring sensor, a lower vibration screen drive hydraulic motor, the automatic grain tank grain impurity rate monitoring device, a power drive mechanism of a louver sieve with the adjustable opening degree, a power drive mechanism of the cleaning centrifugal fan, an air inlet opening degree adjusting mechanism of the cleaning centrifugal fan and an air division board angle adjusting mechanism of the cleaning centrifugal fan. By the adoption of the cleaning control device, according to the operation quality in the operation process, various work parameters are automatically adjusted, production efficiency is improved, the fault rate is controlled within a certain range, and meanwhile and fault-free work time of a whole machine is greatly prolonged.

Description

technical field [0001] The invention belongs to the field of design and adaptive control of a combine harvester cleaning device, and in particular relates to a combine harvester multi-air channel cleaning device and an adaptive cleaning method thereof. Background technique [0002] The cleaning device is the "digestive system" of the combine harvester, and it is the core working part that affects the operation quality, efficiency and adaptability of the whole machine. Most of the rice combine harvesters with the largest stock in my country's market use traditional wind screen cleaning devices (single-channel centrifugal fan + double-layer vibrating screen). The floating characteristics of each component (including grains, short stems, glumes, and a small amount of light debris, etc.) are different, and the double-layer vibrating woven screen or fish scale sieve is used to complete the separation and cleaning of grains, stems, and debris. Studies have shown that the tradition...

AI Technical Summary

Problems solved by technology

Compared with the advanced combine harvesters of European and American multinational companies, most of my country's grain combine harvesters are only equipped with a small number of alarm devices such as blockage and full grain tanks, and generally lack intelligent monitoring such as monitoring of working parameters and performance, electric / automatic adjustment of working parameters, etc. The device makes the operation performance of the machine unstable, and the operation efficiency depends on the proficiency of the machine operator, and the operation intensity is high, and the blockage failure occurs frequently. Operational requirements for chemical production and rice-oil (wheat) rotation areas such as rush harvesting and rush planting

In recent years, scholars at home and abroad have carried out a lot of research work on the intelligent technology of combine harvesters, but most of the research is only on the monitoring or prediction model of a single working parameter and operating performance parameter, and there is no basis for monitoring the current operating conditions. Feedback control of related components by parameter values ​​and relatively few studies on fusion control of multi-job parameters

[0005] In addition, for the monitoring of the performance of the cleaning device, the relevant intelligent technology research mainly focuses on the monitoring of the loss of grain cleaning, without considering another important performance index - the impurity content of the grain

Therefore, an automatic monitoring device for the impurity content of the grain box of the combine harvester is the premise of realizing the adaptive control of the operating parameters of the cleaning device. According to the literature search, so far, there is no such thing as the impurity content of the grain box of the combine harvester in my country. Reports from Automatic Monitoring Devices

Images