Profiling anti-blocking leaf vegetable harvester and control system and method control thereof

Abstract

The invention belongs to the field of agricultural machinery, and relates to a profiling anti-blocking leaf vegetable harvester and a control system and a control method thereof. The profiling anti-blocking leaf vegetable harvester comprises a reel assembly, a header assembly, a header chassis connecting assembly, a header chassis limiting assembly, a collecting device, two header adjusting assemblies, a chassis assembly, two ridge surface detecting assemblies and a control system, wherein the reel assembly is installed at the front part of the header assembly; the header assembly is connectedto the chassis assembly through the header chassis connecting assembly; the header chassis limiting assembly is installed between the header assembly and the chassis assembly; the collecting device is installed at the rear part of the chassis assembly; the two header adjusting assemblies are transversely and symmetrically installed between the header assembly and the chassis assembly and are usedfor adjusting the postures of the header assembly in the transverse direction and the longitudinal direction; and the two ridge surface detecting assemblies are transversely and symmetrically installed in front of the lower part of the header assembly. The functions of ridge surface self-adaption in the transverse direction and the longitudinal direction of the cutting height, reel rotating speedself-adaption operation speed, intelligent anti-blocking regulation and the like are achieved, low loss rate of leaf vegetable harvesting is guaranteed, and the leaf vegetable harvesting quality is improved.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a profiling anti-blocking leaf vegetable harvester and its control system and method. Background technique [0002] Harvesting leafy vegetables is one of the most labor-intensive links in leafy vegetable production, and it is also the last link to ensure the appearance and quality of leafy vegetables. Leafy vegetables are mostly slender and loose due to their morphological characteristics, so the planting methods are mostly broadcast or drilled. Due to the low precision of ridge preparation before sowing and the impact of irrigation after sowing, the ridge surface is uneven when the leaf vegetables are harvested, that is, the vertical and horizontal fluctuations of the ridge surface are relatively large. The height of the first cotyledon from the ground is extremely low. Therefore, if the header cannot follow the ground for horizontal and vertical profiling duri...

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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 functions of horizontal profiling and anti-blocking, and due to the complex environment of the ridge surface, the error of directly using the ultrasonic sensor to detect the ridge surface information is relatively large

The harvester cannot adaptively adjust the distance of the cutting knife according to the information of the ridge surface and does not have the function of anti-blocking

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