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.
齿轮声辐射特征分析 在选择用不同结构形式的齿轮时，对其特定结构建立声辐射模型，进行动力学分析，对齿轮传动系统噪声进行预先评估。以便根据使用者的不同要求（使用场所，是 否无人操作，是否在城区内，地上、地下建筑物有无特定要求，是否有噪声防护，或无其他特定要求）去满足。减速器的种类繁多，按照传动类型可分为齿轮减速器、蜗杆减速器和行星齿轮减速器。
The acoustic radiation characteristic analysis of gear in the selection of gear with different structure forms, set up the acoustic radiation model to its specific structure, carry on the dynamic analysis, and evaluate the gear tran***ission system noise in advance. In order to meet the users" requirements (use sites, unmanned operati, whether there are specific requirements in the urban area, ground or underground buildings, noise protection, or other specific requirements).
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.