Header profiling device, control system and method thereof and harvester

Abstract

The invention belongs to a header profiling device, a control system and method thereof and a harvester, and belongs to the field of agricultural machinery. The header profiling device comprises a profiling detection assembly, a header profiling adjustment assembly, a header lifting execution assembly, a header chassis hinge assembly and the control system. The profiling detection assembly is mounted in front of a header; the header profiling adjustment assembly is mounted at the front part of the header; the header lifting execution assembly is mounted between the header and a chassis; and the header chassis hinge assembly is arranged between the header and the chassis. Header position control in a transportation state and a header profiling harvesting operation state is realized throughthe header profiling adjustment assembly and the header lifting execution assembly; and the distance between a cutter and a ridge surface is detected by the control system for the profiling detectionassembly, the influence of the system profiling information lead amount is solved through a mathematical model, then the header profiling adjustment assembly is controlled to conduct transverse and longitudinal adjustment on the header so as to ensure that a certain distance can be kept between the cutter and the ridge surface, and the leaf vegetable harvesting loss and the cutter entering-soil damage caused by improper height adjustment of the cutter are reduced.

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 ...

AI Technical Summary

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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