A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Small-number movable point rail frog for urban rail transit
The invention discloses a small-number movable point rail frog for urban rail transit. The small-number movable point rail frog comprises lateral wing rails, straight wing rails, an integrated point rail, lateral fork heel rails, straight fork heel rails and pivot assemblies. The integrated point rail is of an axially symmetrical structure, is sleeved on the pivot assembly through a stepped hole formed in the heel end of the integrated point rail and can rigidly rotate; the center of the pivot assembly is located on the intersection point of the sharp angle bisector of the integrated point rail and the frog angle bisector. The heel end of the integrated point rail is in butt joint with the front ends of the lateral heel forking rail and the straight heel forking rail in a small clearance fit mode through convex-concave arc surfaces. The device can be universally used in left-opening and right-opening turnouts, the pulling force is reduced, insufficient displacement is avoided, the rotating center of the heel end of the point rail is located in the middle of the straight direction and the lateral direction, when the point rail is pulled by the electric service conversion equipment to open the straight rail or the lateral rail, the rotating angle is basically consistent, and the straight strand pulling force and the lateral strand pulling force are balanced.
一种城轨交通用小号码可动心轨辙叉，包括侧向翼轨、直向翼轨、一体式心轨、侧向叉跟轨、直向叉跟轨及枢轴组件；所述一体式心轨为轴向对称结构，并通过其跟端上具有的台阶孔套装在所述枢轴组件上可刚性旋转；所述枢轴组件的中心位于所述一体式心轨的尖角平分线与辙叉角平分线的交点上；所述一体式心轨的跟端与所述侧向叉跟轨、直向叉跟轨的前端通过凸凹圆弧面小间隙配合对接在一起。本发明不但能够在左开、右开道岔中通用，减小了扳动力，避免了不足位移产生，而且心轨跟端的旋转中心处于直向与侧向的中间位置，电务转换设备扳动心轨开通直向或侧向轨道时，旋转角度基本一致，均衡了直股、侧股扳动力。
Small-number movable point rail frog for urban rail transit
The invention discloses a small-number movable point rail frog for urban rail transit. The small-number movable point rail frog comprises lateral wing rails, straight wing rails, an integrated point rail, lateral fork heel rails, straight fork heel rails and pivot assemblies. The integrated point rail is of an axially symmetrical structure, is sleeved on the pivot assembly through a stepped hole formed in the heel end of the integrated point rail and can rigidly rotate; the center of the pivot assembly is located on the intersection point of the sharp angle bisector of the integrated point rail and the frog angle bisector. The heel end of the integrated point rail is in butt joint with the front ends of the lateral heel forking rail and the straight heel forking rail in a small clearance fit mode through convex-concave arc surfaces. The device can be universally used in left-opening and right-opening turnouts, the pulling force is reduced, insufficient displacement is avoided, the rotating center of the heel end of the point rail is located in the middle of the straight direction and the lateral direction, when the point rail is pulled by the electric service conversion equipment to open the straight rail or the lateral rail, the rotating angle is basically consistent, and the straight strand pulling force and the lateral strand pulling force are balanced.
一种城轨交通用小号码可动心轨辙叉，包括侧向翼轨、直向翼轨、一体式心轨、侧向叉跟轨、直向叉跟轨及枢轴组件；所述一体式心轨为轴向对称结构，并通过其跟端上具有的台阶孔套装在所述枢轴组件上可刚性旋转；所述枢轴组件的中心位于所述一体式心轨的尖角平分线与辙叉角平分线的交点上；所述一体式心轨的跟端与所述侧向叉跟轨、直向叉跟轨的前端通过凸凹圆弧面小间隙配合对接在一起。本发明不但能够在左开、右开道岔中通用，减小了扳动力，避免了不足位移产生，而且心轨跟端的旋转中心处于直向与侧向的中间位置，电务转换设备扳动心轨开通直向或侧向轨道时，旋转角度基本一致，均衡了直股、侧股扳动力。
Small-number movable point rail frog for urban rail transit
一种城轨交通用小号码可动心轨辙叉
WANG ALI (author) / SHI QINGFENG (author) / GAO SHANGJUN (author) / LI CHUNQIANG (author) / CHEN FEI (author) / FENG YI (author)
2024-03-19
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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