除挑選低噪聲的引擎發動機外，主機需要做些什
除挑選低噪聲的引擎發動機外，主機需要做些什么？
What does the main engine need to do in addition to selecting a low-noise engine?
答：除挑選低噪聲的引擎發動機外，主機的結構安置或系統的結構預設也可以進行某些改進。
A: in addition to selecting a low-noise engine, some improvements can be made to the configuration of the host or to the configuration of the system.
1、可在機罩等遮蓋件處預設粘附吸音隔音材料；
1. The machine cover and other covering parts can be preset to adhere to sound-absorbing and sound-insulating materials;
2、通過優化液壓管路排列來下降液壓油泵振蕩、閥節流和油管振蕩產生的噪聲；
2. Reduce the noise caused by hydraulic pump oscillation, valve throttling and tubing oscillation by optimizing the arrangement of hydraulic pipelines;
3、可預設全嚴密封閉整體式操縱室，嚴密封閉減震，隔音降噪；
3. The fully closed and integral control room can be preset, which is tightly closed for shock absorption and sound insulation and noise reduction;
4、如冷卻風扇可不再由引擎發動機直接驅動，而可單 、由液壓電動機帶動，這便于將風扇與引擎發動機隔開并將整個兒引擎發動機嚴密封閉起來，因此使噪聲不可以以通過風扇出風口傳到外部，下降噪聲對環境的影響。
4, such as cooling fan can no longer be directly driven by the engine engine, but single, driven by hydraulic motor, which is easy to separate the fan from the engine engine and the whole engine engine closely closed up, so the noise can not be transmitted to the outside through the fan outlet, the impact of noise on the environment.
橡膠減振器的作用就是用來減振及減噪，橡膠減振器的形狀可以任意挑選，使上下、左右、前后三個方向的剛度可以通過減振元件的合理預設來得到，這樣可以大大地簡化減振器的結構。所以應用到很多機械設備上。
The function of rubber shock absorber is to reduce vibration and noise. The shape of rubber shock absorber can be selected at will, so that the stiffness of up and down, left and right, front and back can be obtained by reasonable presetting of the shock absorber, which can greatly simplify the structure of the shock absorber.So it applies to a lot of mechanical devices.
The function of rubber shock absorber is to reduce vibration and noise. The shape of rubber shock absorber can be selected at will, so that the stiffness of up and down, left and right, front and back can be obtained by reasonable presetting of the shock absorber, which can greatly simplify the structure of the shock absorber.So it applies to a lot of mechanical devices.
