Shaking separation device in thresher

脱穀機における揺動選別装置

Abstract

(57)【要約】 【課題】 所定開度に達するまで各フィンの現開度を逐 次検出して帰還する通常制御モードとは別に、選別処理 量検出センサの検出値変化のみで各シーブの開度を制御 部で変更する緊急制御モードを備えて制御上の安全性を 確保できる脱穀機における揺動選別装置を提供する。 【解決手段】 各シーブ7のフィン開度を選別処理量検 出センサ5からの検出値に基づいて所定開度に変更する 制御部に、所定開度に達するまで各フィンの現開度を逐 次検出して帰還する通常制御モードと、上記現開度の逐 次検出が不能となった際に、その検出値を無視して選別 処理量検出センサ5の検出値変化のみで各シーブ7のフ ィン開度を変更する緊急制御モードとを備えた。
PROBLEM TO BE SOLVED: To provide a shaking separation device in a thresher, which has an emergency control mode for changing the opening of each sieve only by the detected value change of a separation treatment quantity detection sensor in a control section in addition to an ordinary control mode for sequentially detecting and returning the present opening of each fin until to reach a prescribed opening. SOLUTION: This shaking separation device in the thresher, characterized by having an ordinary control mode for sequentially detecting and returning the present opening of each fin until to reach a prescribed opening and an emergency control mode for ignoring the detected value and changing the fin opening of each sieve 7 only by the detection value change of the separation treatment quantity detection sensor 5, when the sequential detection of the present opening becomes impossible, in the control section for changing the fin opening of each sieve 7 into a prescribed opening on the basis of a detected value from the separation treatment quantity detection sensor 5.

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