贯彻新的齿轮精度标准,首先必须选用适当的齿轮精度等级;我国拖拉机齿轮原有的齿轮精度在选用上“一刀切”,虽大部分是合适的,但少部分有偏高、偏低的问题,按齿轮节圆工作线速度的数值来选取齿轮精度等级是合理的,这有利于保证齿轮的承载能力,降低噪声,提高经济效益,而且,比原来的精度都有所提高,并与目前世界工业先进国家的近代拖拉机齿轮精度接近。 The implementation of the new gear accuracy standards, we must first select the appropriate level of gear accuracy; the original gear precision of our tractor gear selection in the “one-size-fits-all”, although most are suitable, but some are high, low, It is reasonable to select the gear accuracy grade according to the value of the work line speed of the pitch circle of the gear, which is conducive to ensuring the bearing capacity of the gear, reducing the noise and improving the economic efficiency. Moreover, the precision is higher than the original precision, The precision of modern tractor gears in advanced countries is very close.