Automatic control system for height of cutting table of combine-harvester

Abstract

The invention relates to an automatic control system for the height of a cutting table of a combine-harvester. A hydraulic lifting device of the cutting table of the harvester is modified by a sensor, the sensor mounted on the cutting table of the harvester can accurately measure the distance between the cutting table and a road surface on which the harvester runs, by a PLD working principle, a logical program is edited, detected data are collected, analyzed and processed, commands are send out to the hydraulic lifting system of the cutting table of the harvester, and therefore, the cutting table ascends and descends automatically; the distance between the cutting table and the road surface on which the harvester runs is proper, the cutting table is prevented from colliding with a rugged road surface in a running or harvesting process, and unnecessary economic loss is avoided; meanwhile, the harvesting efficiency can be improved; accurate harvesting in the next season is facilitated; seed sowing is accurate; and waste is avoided. Theory and practice support is provided for development and modification of the cutting table of the harvester.

Description

[0001] Technical field [0002] The invention relates to an automatic control system for the header height of a combine harvester, which is suitable for the mechanical field. Background technique [0003] As an important part of agricultural machinery, the combine harvester plays an irreplaceable role in modern agricultural production. The development and development of combine harvesters with good performance, safety and comfort, and high degree of automation will become a research focus in the field of agricultural machinery in the future. When the combine harvester is working, it is often due to improper adjustment of the header height, which may cause machine blockage, cause machine failure, and directly affect the harvesting efficiency of the harvester. In the past, the header used mechanical profiling mechanism or manually adjusted the working height, the real-time performance and accuracy were poor, and it was impossible to obtain and analyze the height data of the hea...

AI Technical Summary

Problems solved by technology

When the combine harvester is working, it is often due to improper adjustment of the header height, which may cause machine blockage, cause machine failure, and directly affect the harvesting efficiency of the harvester.

In the past, the header used mechanical profiling mechanism or manually adjusted the working height, the real-time performance and accuracy were poor, and it was impossible to obtain and analyze the height data of the header. Therefore, the research on the automatic control system of the header is particularly necessary. Laying the Foundation for the Development of Combine Harvester Intelligence

Images