KL1408

KL1408

這正驗證以下幾點結(jié)論：

首先隨著速比的升高，速比和負載慣量成反比，使得電機更容易驅(qū)動負載，所需扭矩自然小了。

另外一方面，由于速比的提高，電機自身的轉(zhuǎn)速需求提高了，使得其自身需要更高的加速度以滿足負載的運行速度，而加速度的提升就帶來了扭矩需求的提高。

關(guān)鍵問題在于，在電機轉(zhuǎn)速范圍內(nèi)，以上兩個扭矩變化的趨勢哪個是主導呢？這就要看電機的慣量大小了。

通過調(diào)整電機慣量的的級別，我們可以看一下扭矩需求隨速比的變化趨勢。

曲線趨勢圖說明：

主坐標（左側(cè)）為轉(zhuǎn)矩

副坐標（右側(cè)）為代入減速機構(gòu)后的傳動系統(tǒng)慣量比

橫坐標為傳動減速比

如果電機慣量很小，只有負載的1%－5%，那么趨勢是這樣的。

如果電機慣量繼續(xù)增大，將看到扭矩的低點逐漸向速比較小的趨勢靠近。

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