Multi-planting arm transplanting mechanism with modified elliptical gear

Abstract

The invention relates to a multi-planting arm transplanting mechanism with a modified elliptical gear, which belongs to the technical field of agricultural machinery. The multi-planting arm transplanting mechanism comprises a central shaft, wherein two ends of the central shaft respectively extend out from two sides of a transmission case, and are fixedly connected with a rotary box body, a central gear of the rotary box body is fixedly connected with the transmission case, and respectively meshed with at least two planetary gears which are uniformly distributed along the circumference through idle gears, the planetary gears are coaxially and fixedly connected with planting arms respectively, and each planting arm is internally provided with a seedling needle extending out of one end. The multi-planting arm transplanting mechanism is characterized in that a pitch curve of the central gear consists of at least two sections of modified elliptical curves which are in smooth transitional connection, and the pitch curves of the idle gears are conjugate with the pitch curves of the central gear and the planetary gears. After adopting the multi-planting arm transplanting mechanism, a larger 'winding and buckling' track is formed under the condition of meeting the transplanting requirements of paddy rice with wide row spacing, so as to properly solve the existing technical problems, and ensure the quality of paddy rice transplanting.

Description

technical field [0001] The invention relates to a splitting mechanism of a rice transplanter, in particular to a splitting mechanism of a denatured elliptical gear with multiple planting arms, which belongs to the technical field of agricultural machinery. Background technique [0002] As far as the applicant knows, the planting arm of the existing motorized rice transplanter has two forms: one is a crank rocker type splitting mechanism, and the other is a rotary splitting mechanism. Due to its own structural characteristics and the existence of the seedling pushing device, the former is prone to vibration during work, which affects the quality of rice transplanting. When the operating speed exceeds 270r / min, the vibration intensifies with the increase of the rotating speed, so it cannot be applied to high-speed rice transplanters. The typical structure of the latter can be found in Chinese patent applications with application numbers CN200710069230.3 and CN200810162112.1. ...

AI Technical Summary

Problems solved by technology

[0003] Although this type of rotary planting mechanism has the advantage of high operating efficiency, with the increase of the rotation speed, it is easy to cause damage to the seedlings due to the high speed of picking seedlings.

By taking measures to appropriately increase the number of planting arms on the rotary box, the speed of picking seedlings can be appropriately reduced without reducing the work efficiency, but the distance between the transplanted seedlings is smaller than that of the original transplanting mechanism, which cannot meet the requirements of the planting distance. Requirements; or the quality of rice transplanting has declined significantly and cannot work normally

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