除挑选低噪声的引擎发动机外，主机需要做些什
除挑选低噪声的引擎发动机外，主机需要做些什么？
What does the main engine need to do in addition to selecting a low-noise engine?
答：除挑选低噪声的引擎发动机外，主机的结构安置或系统的结构预设也可以进行某些改进。
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、可在机罩等遮盖件处预设粘附吸音隔音材料；
1. The machine cover and other covering parts can be preset to adhere to sound-absorbing and sound-insulating materials;
2、通过优化液压管路排列来下降液压油泵振荡、阀节流和油管振荡产生的噪声；
2. Reduce the noise caused by hydraulic pump oscillation, valve throttling and tubing oscillation by optimizing the arrangement of hydraulic pipelines;
3、可预设全严密封闭整体式操纵室，严密封闭减震，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、如冷却风扇可不再由引擎发动机直接驱动，而可单 、由液压电动机带动，这便于将风扇与引擎发动机隔开并将整个儿引擎发动机严密封闭起来，因此使噪声不可以以通过风扇出风口传到外部，下降噪声对环境的影响。
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.
橡胶减振器的作用就是用来减振及减噪，橡胶减振器的形状可以任意挑选，使上下、左右、前后三个方向的刚度可以通过减振元件的合理预设来得到，这样可以大大地简化减振器的结构。所以应用到很多机械设备上。
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.
