现在随着城市居民生活水平的提高，各种商业设施和小区内底层车库的增加，导致卷帘门大量使用。卷帘门噪声是社会生活噪声的一部分，带来了严重的噪声污染问题，其严重影响了周围居民的生活和休息。有些行业开门早、关门晚，其产生的噪声在那个时间段成为一些地段的主要污染源。济南卷帘门厂针对社会生活噪声中的一个典型噪声--卷帘门，进行一定的监测工作，进而分析得到的监测数据，得出卷帘门噪声源的特点和分布。
Now, with the improvement of the living standards of urban residents, various commercial facilities and the increase of the garage at the bottom of the community, resulting in the large use of roller shutter doors. The noise of rolling shutter door is a part of the noise of social life, which brings serious noise pollution problems, which seriously affects the life and rest of the surrounding residents. have   Those industries opened early and closed late, and the noise generated by them became the main pollution source in some areas during that period. Jinan rolling shutter door factory carries out certain monitoring work for a typical noise in social life - rolling shutter door, and then analyzes the monitoring data obtained, and obtains the characteristics and distribution of the rolling shutter door noise source.

卷帘门厂通过对卷帘门结构的分析，卷帘门噪声的来源主要有4种：

Through the analysis of the structure of the rolling shutter door, the rolling shutter door factory found that there are four main sources of noise:

（1）卷帘门齿轮转动时产生的机械噪声；

(1) Mechanical noise generated by rolling shutter gear rotation;

（2）帘片之间的碰撞摩擦产生的机械噪声；

(2) Mechanical noise caused by collision and friction between curtain pieces;

（3）帘片和卷帘门边缘的摩擦产生的噪声；

(3) The noise generated by the friction between the curtain and the edge of the rolling shutter door;

（4）卷帘门着地时其底部与地面碰撞时产生的噪声。

(4) The noise generated when the bottom of the roller shutter collides with the ground when it touches the ground.

其中（1）、（2）为运行时的噪声，（3）为下拉时较后的声音。噪声级的大小与拉门时门的运行速度有关系，速度大时，帘片之间的摩擦、碰撞比较剧烈，这也是产生扰民噪声的重要来源。设想减少卷帘门的速度时，摩擦碰撞相应地减小，如果找到一个阈值速度，当闸门速度低于这个速度时，噪声声级达到人们可以接受的情况。

Among them, (1) and (2) are the noise during operation, and (3) are the later sound during pull-down. The size of the noise level is related to the running speed of the door when the door is pulled. When the speed is high, the friction and collision between the curtain pieces are relatively severe, which is also an important source of noise disturbing the residents. It is envisaged that when the speed of the shutter door is reduced, the friction and collision will be correspondingly reduced. If a threshold speed is found, when the gate speed is lower than this speed, the noise level will reach an acceptable level.

卷帘门噪声的来源情况就是以上内容了，希望能够解答您的疑惑，当然基于该问题，我们所要做的便是做好检查维护事项，把损坏降低。还有什么疑惑或者需求，就来我们网站http://www.jnhsjlm.com咨询吧！

The source of the noise of the rolling shutter door is the above. I hope we can answer your question. Of course, based on this question, what we need to do is to do a good job in inspection and maintenance to reduce the damage. If you have any doubts or needs, please come to our website http://www.jnhsjlm.com Ask!