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开发出钢环和橡胶多层结构制成的轴箱悬挂弹簧可减轻维修工作量,减小20a前设计的无摇枕转向架的质量。然而,橡胶材料由于老化而退化,特别是蠕变现象造成弹簧高度的降低,最终需要调整轴箱高度。优化橡胶组份如石墨、抗氧化稳定剂的混合比,使轴箱高度保持稳定,可减少40%的蠕变,确定使用所开发的橡胶弹簧可保证车辆动态特性与使用现有橡胶材料的等效。
The development of axle suspension springs made of a steel ring and rubber multi-layer structure reduces the amount of maintenance required and the quality of the bolsterless bolsters 20a designed before. However, the rubber material deteriorates due to aging, in particular, the creep phenomenon causes a decrease in the height of the spring, eventually requiring adjustment of the height of the axle box. Optimized mixing ratio of rubber components such as graphite and antioxidant stabilizes the height of the axlebox to reduce creep by 40% and ensures that the developed rubber spring ensures dynamic characteristics of the vehicle and the use of existing rubber materials effect.