Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Turnout straight point rail capable of reducing rolling contact fatigue damage
The invention discloses a turnout straight point rail capable of reducing rolling contact fatigue damage. The straight point rail is provided with an optimization section, a first section, a second section, a third section and a fourth section are sequentially arranged in the direction from a tip end to a heel end of the straight point rail, the first section and the fourth section are located atthe two ends of the optimization section respectively, and the second section is right opposite to the starting point position of a wheel transferred from a curved stock rail to the straight point rail. The third section directly faces a final position of the wheel which is transferred from the curved stock rail to the straight point rail, the profiles of the first section and the fourth section are the same as the 60AT profiles of the respective sections, the profiles of the second section and the third section are obtained by rounding the joint of a working edge and a non-working edge of thestraight point rail, and a rounding radius is 3 mm; and the straight point rails between the first section and the second section, between the second section and the third section and between the third section and the fourth section are subjected to linear transition processing. The straight point rail has the advantages that the straight point rail is simple in manufacturing process, running stability of a vehicle in the prior art is not affected, and rolling contact fatigue damage of the straight point rail can be reduced.
本发明公布了一种减小滚动接触疲劳伤损的道岔直尖轨，其具有优化段，沿直尖轨尖端到跟端方向，依次有第一、第二、第三和第四断面，第一和第四断面分别位于优化段的两端，第二断面正对车轮从曲基本轨转移到直尖轨上的起点位置，第三断面正对车轮由曲基本轨转移到直尖轨的终点位置，第一断面廓形与第四断面廓形与各自断面处的60AT廓形相同，第二、第三断面的廓形由直尖轨的工作边和非工作边的交接处倒圆加工得到，倒圆半径为3mm，此外，第一与第二断面、第二与第三断面及第三与第四断面之间的直尖轨均进行线性过渡加工。本发明的优点是直尖轨制造工艺简单，不影响现有技术下的车辆运行稳定性，并可减小直尖轨的滚动接触接触疲劳伤损。
Turnout straight point rail capable of reducing rolling contact fatigue damage
The invention discloses a turnout straight point rail capable of reducing rolling contact fatigue damage. The straight point rail is provided with an optimization section, a first section, a second section, a third section and a fourth section are sequentially arranged in the direction from a tip end to a heel end of the straight point rail, the first section and the fourth section are located atthe two ends of the optimization section respectively, and the second section is right opposite to the starting point position of a wheel transferred from a curved stock rail to the straight point rail. The third section directly faces a final position of the wheel which is transferred from the curved stock rail to the straight point rail, the profiles of the first section and the fourth section are the same as the 60AT profiles of the respective sections, the profiles of the second section and the third section are obtained by rounding the joint of a working edge and a non-working edge of thestraight point rail, and a rounding radius is 3 mm; and the straight point rails between the first section and the second section, between the second section and the third section and between the third section and the fourth section are subjected to linear transition processing. The straight point rail has the advantages that the straight point rail is simple in manufacturing process, running stability of a vehicle in the prior art is not affected, and rolling contact fatigue damage of the straight point rail can be reduced.
本发明公布了一种减小滚动接触疲劳伤损的道岔直尖轨，其具有优化段，沿直尖轨尖端到跟端方向，依次有第一、第二、第三和第四断面，第一和第四断面分别位于优化段的两端，第二断面正对车轮从曲基本轨转移到直尖轨上的起点位置，第三断面正对车轮由曲基本轨转移到直尖轨的终点位置，第一断面廓形与第四断面廓形与各自断面处的60AT廓形相同，第二、第三断面的廓形由直尖轨的工作边和非工作边的交接处倒圆加工得到，倒圆半径为3mm，此外，第一与第二断面、第二与第三断面及第三与第四断面之间的直尖轨均进行线性过渡加工。本发明的优点是直尖轨制造工艺简单，不影响现有技术下的车辆运行稳定性，并可减小直尖轨的滚动接触接触疲劳伤损。
Turnout straight point rail capable of reducing rolling contact fatigue damage
一种减小滚动接触疲劳伤损的道岔直尖轨
MA XIAOCHUAN (Autor:in) / HUANG JIE (Autor:in) / XU JINHUI (Autor:in) / LIU LINYA (Autor:in) / FENG QINGSONG (Autor:in) / ZHANG BIN (Autor:in) / ZHANG PENGFEI (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Method for reducing insufficient displacement of turnout switch rail
| Europäisches Patentamt | 2022