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直齿圆柱内齿轮是起重机旋转机构中的一个主要零件,其材料为 ZG45 Ⅱ铸件,模数 m=25,齿数z=164,压力角α=20,齿宽 B=290mm,见图1。我厂现有的齿轮加工设备的技术参数达不到工件的要求,故根据工厂的现有条件,在平板上安置动力头并装指形铣刀进行加工,见图2。用这种方法加工的产品可以达到技术要求。
Straight cylindrical gear is a main part of the crane rotating mechanism, the material is ZG45 Ⅱ castings, modulus m = 25, the number of teeth z = 164, the pressure angle α = 20, tooth width B = 290mm, shown in Figure 1. The technical parameters of the existing gear processing equipment in our factory can not reach the requirements of the work piece. Therefore, according to the existing conditions of the factory, the power head is arranged on the flat plate and the finger-shaped milling cutter is used for processing, as shown in FIG. 2. Products processed in this way meet the technical requirements.