齿轮作为传递回转运动和动力的机械零件,其使用范围是非常广泛的。从尺寸很小的小模数齿轮到大型的大功率齿轮,形式多种多样,齿轮可以说是机器中最重要的零件之一。如果齿轮损坏,不仅对齿轮本身,就对整台机器而言,也会造成很大的影响。近年来,随着机器的高速和大功率化,相应地对齿轮提出了更高的要求,希望尺寸尽可能小的情况下承受较高的速度和载荷。为此,对提高齿轮加工精度及进行齿轮润滑、磨损及各种使用工况的研究也提出了更高的要求。由于齿轮的性能与很多因素有关,如果仅仅靠单纯的试验和调查,是不可能完全得到满意的结 Gear as the transmission of rotary motion and power of mechanical parts, the use of a very wide range. From small, small-modulus gears to large, high-power gears, in many different forms, gears are one of the most important parts of a machine. If the gear is damaged, not only the gear itself, but also the entire machine, it will also have a significant impact. In recent years, with the high-speed and high-power machines, correspondingly higher demands have been placed on the gears, and it is hoped that the machine will withstand higher speeds and loads with the smallest possible size. To this end, to improve the gear machining accuracy and gear lubrication, wear and a variety of working conditions also put forward higher requirements. Since the performance of gears is related to many factors, it is not possible to fully satisfy the knot if only by simple tests and investigations