A header profiling device, its control system and method, and a harvester

Abstract

The invention belongs to the field of agricultural machinery and relates to a header profiling device, its control system and method, and a harvester, comprising a profiling detection assembly, a header profiling adjustment assembly, a header lifting execution assembly, and a header chassis hinge assembly and control system. The profiling detection assembly is installed in front of the header; the header profiling adjustment assembly is installed in the front of the header; the header lifting execution assembly is installed between the header and the chassis; the header chassis hinge assembly is installed in the header between the chassis. The position control of the header in the transportation state and the harvesting operation state of the header copying is realized through the header copying adjustment assembly and the header lifting execution assembly; the distance between the cutting knife and the ridge surface is detected by the control system for the copying detection assembly The mathematical model is used to solve the influence of the advanced amount of system profiling information, and then control the header profiling adjustment assembly to adjust the header horizontally and vertically to ensure a certain distance between the cutter and the ridge surface, and reduce the blade height caused by improper adjustment of the cutter height. Harvest loss of vegetables and damage of knives into the soil.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a header profiling device, its control system and method, and a harvester. Background technique [0002] Leafy vegetable harvesting is one of the most labor-intensive links in leafy vegetable production, and its labor intensity accounts for about 35% of the entire production process. It is also the last link to ensure the appearance and quality of harvested leafy vegetables. Leafy vegetables can be divided into sowing and row sowing according to their sowing methods. According to planting experience and related research, the yield of row sowing will not decrease or even surpass that of sowing in the same sowing area, and row sowing leaf vegetables are more suitable for mechanization. Harvested in an orderly manner and its appearance and regularity are higher than those harvested in disorder. At the same time, due to the low precision of ridge preparation before ...

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Problems solved by technology

Chinese patent CN109699287A discloses a leaf vegetable harvester with the function of harvesting height adjustment and its control method. According to the signal detected by the infrared distance measuring sensor, the electric push rod is controlled to expand and contract, and the lifting platform is controlled to expand and contract according to the signal detected by the ultrasonic sensor. However, the executive device of the harvester still only realizes longitudinal profiling and does not have the function of horizontal profiling, and due to the complex environment of the ridge surface, the direct use of the ultrasonic sensor to detect the ridge surface information has a large error

At the same time, due to the advanced detection information leading to the advanced detection information, the adjustment of the height and position of the header is inaccurate;

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