在瓦斯發電機組正常運作過程中，我們經常會遇到震動的情況，瓦斯發電機組根據多年經驗總結出這其實是由電機引起的，主要原因歸結為以下三種，零部件松動、機械故障和電磁故障。

　　During the normal operation of gas generator sets, we often encounter vibration situations. Based on years of experience, gas generator sets have concluded that this is actually caused by the motor, and the main reasons can be attributed to the following three types: loose components, mechanical failures, and electromagnetic failures.

　　一、轉動部分不平衡主要是轉子、耦合器、聯軸器、傳動輪(制動輪)不平衡引起的。處理方法是先找好轉子平衡。如果有大型傳動輪、制動 輪、耦合器、聯軸器，應與轉子分開單獨找好平衡。再有就是轉動部分機械松動造成的。如：鐵心支架松動，斜鍵、銷釘失效松動，轉子綁扎不緊都會造成轉動部分不平衡。

　　1、 The imbalance of the rotating parts is mainly caused by the imbalance of the rotor, coupler, coupling, and transmission wheel (brake wheel). The solution is to first find the rotor balance. If there are large transmission wheels, brake wheels, couplings, or couplings, they should be balanced separately from the rotor. Another issue is the mechanical looseness of the rotating parts. For example, loosening of the iron core bracket, failure and loosening of the diagonal keys and pins, and loose binding of the rotor can all cause imbalance in the rotating parts.

　　二、機械部分故障主要有以下幾點：

　　2、 The main mechanical failures are as follows:

　　1、聯動部分軸系不對中，中心線不重合，定心不正確。這種故障產生的原因主要是安裝過程中，對中不良、安裝不當造成的。還有一種情況，就是有的聯動部分中心線在冷態時是重合一致的，但運行一段時間后由于轉子支點，基礎等變形，中心線又被破壞，因而產生振動。

　　1. The axis system of the linkage part is not centered, the centerline is not aligned, and the centering is incorrect. The main cause of this malfunction is due to poor alignment and improper installation during the installation process. There is also a situation where the center lines of some linkage parts coincide in the cold state, but after running for a period of time, the center lines are damaged due to deformation of the rotor support points, foundations, etc., resulting in vibration.

　　2、與電機相聯的齒輪、聯軸器有毛病。這種故障主要表現為齒輪咬合不良，輪齒磨損嚴重，對輪潤滑不良，聯軸器歪斜、錯位，齒式聯軸器齒形、齒距不對、間隙過大或磨損嚴重，都會造成一定的振動。

　　2. The gears and couplings connected to the motor are faulty. This type of malfunction is mainly manifested as poor gear meshing, severe tooth wear, poor wheel lubrication, skewed or misaligned couplings, incorrect tooth profile and pitch, excessive clearance or severe wear of gear couplings, all of which can cause certain vibrations.

　　3、電機本身結構的缺陷和安裝的問題。這種故障主要表現為軸頸橢圓，轉軸彎曲，軸與軸瓦間間隙過大或過小，軸承座、基礎板、地基的某部分乃至整個電機安裝基礎的剛度不夠，電機與基礎板之間固定不牢，底腳螺栓松動，軸承座與基礎板之間松動等。而軸與軸瓦間間隙過大或過小不僅可以造成振動還 可使軸瓦的潤滑和溫度產生異常。

　　3. Defects in the structure of the motor itself and installation issues. This type of fault is mainly manifested as elliptical shaft neck, bent shaft, excessive or insufficient clearance between shaft and bearing shell, insufficient stiffness of bearing seat, foundation plate, some parts of the foundation, and even the entire motor installation foundation, weak fixation between motor and foundation plate, loose foot bolts, and loose connection between bearing seat and foundation plate. Excessive or insufficient clearance between the shaft and the bearing shell can not only cause vibration, but also lead to abnormal lubrication and temperature of the bearing shell.

　　4、電機拖動的負載傳導振動。例如：汽輪發電機的汽輪機振動，電機拖動的風機、水泵振動，引起電機振動。

　　4. The load driven by the motor conducts vibration. For example, the vibration of the steam turbine in a steam turbine generator, as well as the vibration of the fan and water pump driven by the motor, can cause the motor to vibrate.

　　三、電氣部分的故障是由電磁方面的原因造成的主要包括：交流電機定子接線錯誤、繞線型異步電動機轉子繞組短路，同步電機勵繞組匝間短路，同步電機勵磁線圈聯接錯誤，籠型異步電動機轉子斷條，轉子鐵心變形造成定、轉子氣隙不均，導致氣隙磁通不平衡從而造成振動。導致電機振動的原因多種多 樣，以上僅是筆者在工作中，實際遇到的一些故障總結如上。

　　3、 The faults in the electrical part are mainly caused by electromagnetic factors, including: incorrect wiring of the stator of the AC motor, short circuit of the rotor winding of the wound asynchronous motor, short circuit between turns of the excitation winding of the synchronous motor, incorrect connection of the excitation coil of the synchronous motor, broken bars in the rotor of the cage asynchronous motor, deformation of the rotor iron core causing uneven air gap between the stator and rotor, resulting in unbalanced magnetic flux in the air gap and causing vibration. There are various reasons that can cause motor vibration, and the above is just a summary of some faults encountered by the author in their work.

　　瓦斯發電機組提示您當瓦斯發電機組出現劇烈的不正常震動時，就要考慮是不是以上這些因素導致的，在檢查過程中首先要從這三個方面下手進行針對性的檢查，來盡快找出原因所在，恢復正常工作。

　　The gas generator set reminds you that when there is severe abnormal vibration in the gas generator set, you should consider whether it is caused by the above factors. During the inspection process, targeted inspections should be carried out from these three aspects to quickly identify the cause and restore normal operation.

　　本文由  瓦斯發電機組  友情奉獻.更多有關的知識請點擊  http://www.hdlelisa.com/   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

　　This article is a friendly contribution from a gas generator set For more related knowledge, please click http://www.hdlelisa.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.