齿轮传动外文文献翻译、中英文翻译、外文翻译.docVIP

PAGE 1段荣鑫 译 PAGE 1 Gear Gear (Gear) is relying on the tooth meshing torque rotavirus mechanical parts.Gear withother dentate machinery parts, such as a worm gear, rack, transmission, which can realize changedthe direction of rotation speed and torque, change the direction of movement and change themovement forms, and other functions.Owing to the high transmission efficiency, accurate andadvantages of large range of power transmission ratio, gear mechanism is widely used in industrialproducts, the design and manufacture level directly affects the quality of industrial products.Geartooth buckle each gear will drive the other gears to transmit power.?Separate two gears, chains canalso be applied, caterpillar, on both sides of the belt to drive gear and transmission power.Basic introduction： In the application of transmission gear appeared very early.More than three hundred years BC, theancient Greek philosopher Aristotle in the mechanical problems, it expounds the bronze or irongear transmission problem of rotary motion.?Invented in ancient China, has been applied in theentire gear train.However, the ancient gear is made of wood or metal moulds, can only transferbetween shaft rotary motion, cannot guarantee the stability of transmission, the bearing capacity ofthe gear are also small.According to historical records, in 400 ~ 200 BC in ancient China hasalready started to use gear, shanxi unearthed bronze gears in our country is by far the oldest gearhad been found, as a reflection of ancient science and technology achievements of this work is togear mechanism as the core mechanism.?The 1 7th century, people started to research, can bedelivered right tooth shape of the movement.The 18th century, Europe: after the industrialrevolution, the application of_ gear .?transmission is inereasing day.?by day widely;First thedevelopment of cycloidal gear, then the involute gear, until the beginning of the 20th century,involute gear has set up a file in the applicatio