辙叉是指使车轮由一股钢轨越过另一股钢轨的设备，由叉心、翼轨和联结零件组成。
高锰钢辙叉 High Manganese Steel Frog
焊接辙叉 welded frog ; welding frog crossing
组合辙叉 assembled frog ; combined frog ; combined frog assembled frog
可动翼轨辙叉 movable-wing frog ; movable wing rails ; movable wing rails movable-wing frog
辙叉环 frog ring
辙叉跟端 heel end of frog ; frog heel
辙叉趾端 toe end of frog ; frog toe
辙叉有害空间 gap in the frog ; unguarded flange-way ; open throat
钢轨组合辙叉 bolred rigid frog ; assembled frog
Frog is the position that destroyed most seriously in the railway line.
辙叉是铁路结构中损伤最严重的部位。
参考来源 - 空冷贝氏体辙叉钢焊接性能研究A finite element model of wheel, rail and turnout junction contact was established to solve the wheel tread groove wear problems. The model used the method of parametric quadratic programming combined with the multiple sub-structure technology.
本文针对车轮踏面沟槽磨耗问题,应用有限元参数二次规划法并结合多重子结构技术,利用我国自主研发JIFEX软件建立车轮与钢轨、辙叉相接触的有限元计算模型。
参考来源 - 上海地铁车轮踏面沟槽磨耗原因分析·2,447,543篇论文数据，部分数据来源于NoteExpress
它实际上代表了辙叉角的余切值。
辙叉是线路上工作条件最为严峻的轨道部件之一。
The frog is one of the rail way parts working under the most rigorous condition.
辙叉内部的铸造缺陷主要是沿晶界析出的非金属夹杂物和缩松。
The casting defects in the railway frog were mainly the nonmetal inclusions and the shrinkage.
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