目前许多工厂对1号及15号车钩牵引梁的设计尺寸和实际操作都有很大出入,有必要提出来和大家共同探讨。我们通过深入实际调查研究,发觉许多几何画法和现场操作是两回事。现将处理情况简介如下: 1.原设计改装1号及15号车钩牵引梁的尺寸(图1),由于在制作时,工人往往把R50毫米誤解为包括皮厚(实际上在画弧时应減去皮 At present, many factories on the 1st and No. 15 coupler towing beam design size and actual operation are very different, it is necessary to put forward to discuss with everyone. Through in-depth investigations and studies, we found that many geometric paintings and on-site operations are two different things. The processing situation is as follows: 1. The size of the towing beam of the original design modified No. 1 and No. 15 coupler (Figure 1) is often misunderstood as including the thickness of the R50 mm (in fact, Subtract the skin