完整版齿轮传动设计.docVIP

毕业论文（设计） 齿轮传动设计刘 蕴 青 摘要 齿轮传动是应用极为广泛和特别重要的一种机械传动形式，它可以用来在空间的任意轴之间传递运动和动力，目前齿轮传动装置正逐步向小型化，高速化，低噪声，高可靠性和硬齿面技术方向发展，齿轮传动具有传动平稳可靠，传动效率高（一般可以达到94%以上，精度较高的圆柱齿轮副可以达到99%），传递功率范围广（可以从仪表中齿轮微小功率的传动到大型动力机械几万千瓦功率的传动），速度范围广（齿轮的圆周速度可以从0.1m/s到200m/s或更高，转速可以从1r/min到20000r/min或更高），结构紧凑，维护方便等优点。因此，它在各种机械设备和仪器仪表中被广泛使用，本课题就是齿轮传动的一个典型应用。　　齿轮传动的特点是：1)效率高 在常用的机械传动中，以齿轮传动效率为最高，闭式传动效率为96%~99%，这对大功率传动有很大的经济意义。2）结构紧凑 比带、链传动所需的空间尺寸小。3)传动比稳定 传动比稳定往往是对传动性能的基本要求。齿轮传动获得广泛应用，正是由于其具有这一特点。4)工作可靠、寿命长 设计制造正确合理、使用维护良好的齿轮传动，工作十分可靠，寿命可长达一二十年，这也是其它机械传动所不能比拟的。这对车辆及在矿井内工作的机器尤为重要。但是齿轮传动贵，且不宜用于传动距离过大的常合。　　 关键词 齿轮的材料，齿轮的热处理，齿轮的尺寸计算以及强度计算。 the Gear transmission is widely used and particularly important a mechanical transmission form, it can be used in the space between the arbitrary and power transmission shaft, gear transmission device is gradually to miniaturization, high-speed, low noise, high reliability and hard-toothed surface technology development direction, gear transmission with high efficiency, stable and reliable (usually can reach 94%, precision of cylindrical gears can be reached 99%), transmission power range from the meter (in small power transmission gears to large-scale dynamic mechanical power transmission tens of thousands kw), wide range of speed of gear circumference speed (from 0.1 m/s to 200msps or higher, speed can be from Grimm 20000r/min/min to or higher), compact structure, convenient maintenance, etc. Therefore, it is in various mechanical equipment and instrument is widely used, this topic is a typical application of gear transmission. Gear transmission characteristics are: 1) high efficiency in common with the mechanical transmission, the highest efficiency for gear transmission efficiency 96% ~ closed for the power transmission 99%, has great significance to the economy. 2) than with compact structure, small size required for the chain. 3) transmission stability is often the determining stable performance of basic requirements. Gear won wide application, because it has a chara