羅茨鼓風機齒輪無法轉動，可能源于以下幾方面原因：

　　The gear of the Roots blower cannot rotate, which may be due to the following reasons:

　　風機內部進入異物造成卡滯：較大的顆粒進入風機腔體后，會堵塞部件間的空隙，致使羅茨鼓風機無法運轉。此時需清理腔體內的異物，并檢查葉輪間的間隙，同時還要查明異物進入的原因，防止類似故障再次出現。

　　Foreign objects entering the interior of the fan cause jamming: larger particles entering the fan chamber can block the gaps between components, causing the Roots blower to fail to operate. At this time, it is necessary to clean the foreign objects inside the cavity, check the gap between the impellers, and identify the cause of the foreign objects entering to prevent similar faults from happening again.

　　風機葉輪出現損壞：葉輪損壞會導致風機無法轉動，這一情況較為直觀。由于葉輪之間相互咬合，一旦葉輪受損，就會造成風機卡滯。這類故障需要拆開外殼進行檢查處理。

　　Damage to the fan impeller: Damage to the impeller can cause the fan to be unable to rotate, which is a more intuitive situation. Due to the interlocking of impellers, once the impellers are damaged, it will cause the fan to jam. This type of malfunction requires disassembling the casing for inspection and handling.

　　風機齒輪發生損壞：正常情況下，齒輪的嚙合區域約為三分之二，若嚙合區域超過這一范圍，齒輪間的咬合力會過大，進而導致齒輪無法轉動，最終使風機無法運轉。

　　Damage to fan gears: Under normal circumstances, the meshing area of the gears is about two-thirds. If the meshing area exceeds this range, the biting force between the gears will be too large, which will cause the gears to fail to rotate and ultimately prevent the fan from running.

　　風機軸承損壞：羅茨鼓風機配備 4 個軸承，若軸承損壞，會使葉輪與葉輪之間、葉輪與機殼及墻板之間的間隙發生改變，葉輪相互摩擦會造成風機無法轉動。這是引發葉輪間隙變化的間接原因，也是導致羅茨鼓風機無法運轉的常見情況。

　　Fan bearing damage: Roots blower is equipped with 4 bearings. If the bearings are damaged, it will cause changes in the gaps between impellers, impellers and the casing and wall panels. Friction between impellers will cause the fan to fail to rotate. This is an indirect cause of changes in impeller clearance and a common situation that leads to the failure of Roots blowers to operate.

　　部件生銹導致卡滯：羅茨鼓風機長期閑置后，內外都會產生銹蝕，葉輪可能與墻板或機殼銹在一起，或者大面積鐵銹脫落致使葉輪卡滯。這種情況下，需用煤油浸泡、汽油沖洗來清除鐵銹，并重新調整間隙。

　　Rusting of components leads to sticking: After long-term idle use, both the inside and outside of the Roots blower will rust, and the impeller may rust together with the wall panel or casing, or a large area of rust may fall off, causing the impeller to stick. In this case, it is necessary to soak in kerosene, rinse with gasoline to remove rust, and readjust the gap.

　　風機組件發生變形：羅茨鼓風機因部件變形而無法運轉的情況較為少見。少數廠商為降低成本，所生產部件的強度未達標準，同型號風機的鑄件厚度可能存在差異。若部件強度不足，可能會出現變形，破壞部件間的間隙，導致風機卡滯。此外，產品長期存放也可能引發部件變形。

　　Deformation of fan components: It is rare for Roots blowers to malfunction due to component deformation. A few manufacturers, in order to reduce costs, produce components with strength that does not meet standards, and there may be differences in the thickness of castings for fans of the same model. If the strength of the components is insufficient, deformation may occur, damaging the gaps between the components and causing the fan to jam. In addition, long-term storage of the product may also cause component deformation.

　　電機出現損壞：若羅茨鼓風機的電機發生故障，無法轉動，風機自然也無法運轉。這種情況下，需要對電機進行檢修或更換。

　　Motor damage: If the motor of the Roots blower malfunctions and cannot rotate, the fan will naturally also fail to operate. In this case, it is necessary to inspect or replace the motor.

　　需要注意的是，以上并非導致羅茨鼓風機齒輪無法轉動的全部因素，具體原因需由維修人員結合實際情況進行判斷、分析和維修。

　　It should be noted that the above are not all factors that cause the gear of the Roots blower to fail to rotate. The specific reasons need to be judged, analyzed, and repaired by maintenance personnel based on the actual situation.

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