我厂联合收割机割台和输送槽上的三个单槽被动带轮,直径大且较薄,原设计为整体灰铸铁件,不但重量大,而且在生产过程中常因铸件变形大,裂纹较多而影响生产。后根据我厂冲压设备较多的实际情况改为带轮辐板(见图1)铆合带轮。为此,我们设计了一套带轮辐板成形模(见图2)。带轮辐板铆合后,φ45mm孔内装铸铁套代替原灰 The three single-grooved passive pulleys on the header and delivery trough of the combine harvester in our factory are large in diameter and thin in thickness. The original design is the whole gray cast iron piece, which not only has heavy weight, but also has large deformation and cracks in the production process Multi and affect the production. According to the actual situation of our factory stamping equipment more with spoke plate (see Figure 1) Riveting pulley. To this end, we have devised a set of webbed dies (see Figure 2). After riveting with spoke plate, φ45mm hole cast iron sleeve instead of the original gray