在运转200~300小时后，应进行换油，在以后的使用中应定期检查油的质量，对于混入杂质或变质的油须及时更换。一般情况下，对于长期连续工作的减速机，按运行5000小时或每年一次更换新油.

After running for 200~300 hours, the first oil change should be done. The quality of the oil should be checked regularly in later use, and the oil mixed with impurities or deterioration must be changed in time. In general, for a long-term continuous working reducer, new oil is replaced at 5000 hours or once a year.

减速器是一种由封闭在刚性壳体内的齿轮传动、蜗杆传动、齿轮-蜗杆传动所组成的***部件，常用作原动件与工作机之间的减速传动装置 。在原动机和工作机或执行机构之间起匹配转速和传递转矩的作用，在现代机械中应用极为广泛。

The reducer is an independent component of gear tran***ission, worm drive and gear worm drive enclosed in a rigid shell. It is often used as a deceleration between the original and the working machines. The matching speed and transfer torque between prime movers and working machines or actuators are widely applied in modern machines.

减速机内部齿轮精度等级 设计减速机时，设计者往往从经济因素考虑，尽可能比较经济的确定齿轮精度等级，忽略精度等级是齿轮产生噪声与侧隙的标记。

When the reducer is designed in the gear precision grade of the reducer, the designers often cider the economic factors as much as to determine the gear precision level as much , and ignore the precision grade as the mark of the gear noise and the backlash.

减速机动力源运转速度 根据在不同转速条件下对减速机的试验表明，随着减速机输入转速的增加，噪声也将增大。

The experimental study on the structural form of the reducer box shows that the cylindrical box is advantageous to vibration reduction. Under the same other conditi, the noise level of the cylindrical box is 5 dB lower than that of other types of box on ***erage.