翻译如下:
Gear drive in a variety of machines and mechanical equipment in the has been more widely used.In a variety of machinery and equipment and mechanical transmission,in order to slow down the growth rate and variable-speed special-purpose,often using a series of gears meshing with each other by the composition of the transmission system,known as the planetary gear transmission.Planetary gear transmission,compared with ordinary gear,it has many unique advantages.Its most notable features are:dynamic time in the mass of its power can be diverted; At the same time,the input shaft and output shaft coaxial with,that is,the output shaft and input shaft are provided online in the same axis.Therefore,the planetary gear transmission has been used to replace ordinary gear drive,as a variety of mechanical transmission of the reducer,the growth rate and variable-speed devices,especially for those who request the city of small size,the quality of small,compact structure and high transmission efficiency lifting transport,mine hoist,mine work,such as transmission gears,planetary gear transmission has played an irreplaceable advantage.Focus on the design of planetary gear reducer,involves the design of planetary gear reducer,planetary gear speed reducer of high-class design,and application for AutoCAD 2007 reducer and parts of the overall drawing drawings.