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蒸汽机车鞲鞴杆是实现机车前进、或后退的重要部件。它的前端和后端为1/15和1/16锥度的圆锥体,分别与前端的鞲鞴体和后端的十字头刚性连接。其结合要求是:锥体接触面应大于80％;鞲鞴杆与鞲鞴体用50～80吨压力组装,并用螺母紧固;鞲鞴杆与十字头的连接应用斜度为1/25的扁销锁紧。鞲鞴杆承受着拉压交变载荷和弯曲力,蒸汽机车功率大、速度快,增大了鞲鞴杆的受力和载荷交变的频率,使受力情况更为复杂。
Steam locomotive pole is to achieve forward or backward locomotive. Its front and rear ends are 1/15 and 1/16 taper cones rigidly connected to the front and rear crossheads respectively. Its combination requirements are: Cone contact surface should be greater than 80%; 鞲 鞴 rod and 鞲 鞴 body with 50 to 80 tons of pressure assembly, and with a nut fastening; 鞲 鞴 rod and crosshead connection application of the slope of 1/25 Flat pin lock. The bar is subjected to tension and compression alternating load and bending force. The power of the steam locomotive is large and the speed is high. The stress and load of the bar are increased, which makes the stress situation more complicated.