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压气机转子是发动机的心脏部件,涡桨6和苏产A-20M型发动机工作时,其压气机转子的转速为12300转/分,工作温度为300℃.该机压气机转子外径为(?)450毫米,重量为141公斤.因此,发动机工作时压气机转子承受很大的离心、弯曲和扭转等负荷.所以,整台转子都采用优质高强度不锈钢制成.它由10个轮盘、1个后轴颈、1个后封严圈和10级工作叶片共1300多个零件组成(见图).各级轮盘的配合紧度为0.17～0、40毫米,轮盘配合处有紧度为0.009～6.032毫米的径向销钉484个,这些销钉将各级轮盘相互固定,并且传递扭矩.前后轴颈装轴承处相距11OO毫米,要求在全长上的跳动量不大于0.02毫米,各级包齿外径对前后轴颈的跳动量要求不大于0.03毫米
Compressor rotor is the heart of the engine components, turboshaft 6 and Su-A-20M engine work, the compressor rotor speed of 12,300 rev / min, the working temperature is 300 ° C. The aircraft compressor rotor diameter ( ?) 450 mm and a weight of 141 kg Therefore, the compressor rotor is subjected to great centrifugal, bending and twisting loads during engine operation, so that the entire rotor is made of high quality and high strength stainless steel and consists of 10 discs , A rear journal, a back sealing ring and 10 working blades a total of more than 1,300 parts (see Figure) at all levels with tightness of the wheel 0.17 ~ 0, 40 mm, with the wheel at 484 radial pins with a tightness of 0.009 to 6.032 mm, which secure the discs at all levels to each other and transmit torque. The front and rear journalled bearings are 1100 mm apart, requiring a total runout of no more than 0.02 mm , The level of package teeth at all levels of the journal before and after the beating requirements of not more than 0.03 mm