插秧機連桿式插植機構之運動分析與設計準則

Kinematic Analysis and Design Principles of Rice Transplanting Mechanism

陳文吉(Wen-Jyi Chen) ； 林聖泉(Tshen-Chan Lin)

《農業機械學刊》 2卷3期 (1993/09) Pp. 45-55

https://doi.org/10.30062/JAM.199309.0005

摘要

本研究之目的在於建立插秧機連桿式插植機構運動之理論模式，以電腦輔助與繪圖技術分析其運動軌跡，並配合試驗以探討插植軌跡與插植性能之關係，進而建立插植機構之設計準則。插植機構之設計，照慣例其插植爪端點運動軌跡必須通過六個精密點。根據本研究試驗顯示，這個限制條件可略為放寬，其中插植爪通過秧苗頂點與挿植作業品質並無明顯關係。靜態軌跡中（亦即機體未行進，僅運轉插植機構），插植爪進入泥土點與軌跡最低點的水平距離，只要小於在動態中機體在此段時間所行進的距離，即可減少秧苗倒伏機會。軌跡最低點至離開泥土點的水平距離，若大於機體在此段時間所行進的距離，即可避免插植爪波及已插好的秧苗。因此插植爪端點只需通過苗床頂部與底部，以及在一定的挿植深度下滿足前述之條件即可達到滿意的插植效果。另外，插植機構之活動空間應配合機體底盤與附屬機件之配置，以確保彼此間不會產生干涉現象。

關鍵字

插秧機 ； 插植機構 ； 運動分析 ； 設計準則

並列摘要

The purpose of this study is to develop the kinematic model of the rice transplanting mechanism. The computer aided kinematics and graphic techniques were used to analyze the model. The experiment was conducted to investigate the relationship between the path of rice transplanting tine and the performance of the transplanting operation. Design Principles of Rice Transplanting Mechanism were drawn accordingly. In designing a transplanting mechanism, conventionally, the transplanting tine has to pass six precision points to obtain the satisfactory performance. However, this condition can be somewhat relaxed. According to our study, there is no significant effect on the performance whether the tine passed the upper part of the seedling or not. Considering the tine path without translation, if the horizontal between the point to enter into the soil and the lowest point of the path is less than the transplanter moving distance during the corresponding period, the seedling will hold in a right transplanting position. Similarly, if the horizontal between the lowest point and the point to go upward from the soil is greater than the transplanter moving distance during the corresponding period, the seedling will not be disturbed by the tine. Therefore, to obtain satisfactory transplanting performance, the transplanting tine only needs to pass the surface and bottom points of the seed bed while it meets the forementioned conditions with certain transplanting depth. Furthermore, the transplanting mechanism should avoid interfering with other elements of the frame to maintain a safe operation.

並列關鍵字

Rice transplanter ； Transplanting mechanism ； Kinematic analysis ； Design principles