减速机与工作机的安装关系：为了避免工作机主轴挠曲及在减速机轴承上产生附加力，减速机与工作机之间的距离，在不影响正常的工作的条件下应尽量小，其值为5-10mm。

The relatihip between the reducer and the working machine is: to ***oid the additional force of the spindle and the additional bearing on the reducer bearing, the distance between the reducer and the working machine should be as ***all as sible without affecting the normal working conditi, and its value is 5-10mm.

降低减速机运转时的齿轮传动噪声已成为行业内的重要研究课题，国内外不少学者都把齿轮传动中轮齿啮合刚度的变化看成是齿轮动载、振动和噪声的主要因素。用修形的方法，使其动载荷及速度波动减至小，以达到降低噪声的目的。这种方法在实践中证明是一种较有效的方法。Ithasawidevarietyoftypesanddifferenttypes,anddifferenttypesh***edifferentuses。

Reducing the gear tran***ission noise of the reducer has become research topic in the industry. Many scholars both at home and abroad regard the change of gear tooth meshing stiffness as the main factor of gear dynamic load, vibration and noise. The method of modification is used to minimize the dynamic load and speed fluctuation in order to reduce noise. This method is proved to be a more effective method in practice.

减速机内部齿轮宽度 在减速机传动空间允许时，增加齿轮宽度，可以减少恒定扭矩下的单位负荷。降低轮齿挠曲，减少噪声激励，从而降低传动噪声。

The width of the internal gear of the reducer can be increased when the tran***ission space of the reducer is allowed, so that the unit load under ctant torque can be reduced. Reduce gear deflection, reduce noise excitation, thereby reducing tran***ission noise.

减速机内部齿面硬度 随着齿轮硬齿面技术的发展，其承载能力大、体积小、重量轻、传动精度高等特点使其应用领域日趋广泛。但为获得硬齿面采用的渗碳淬硬使齿轮产生变形，导致齿 轮传动噪声增大，寿命缩短。

With the development of hard tooth surface technology, the internal hardness of gear reducer has been widely used because of its large bearing capacity, ***all volume, light weight and high tran***ission accuracy. But the carburizing and hardening used to obtain the hard tooth surface causes the deformation of the gear, which results in the increase of the noise of the gear tran***ission and the shortening of the service life.