Little curve track radius detection device

The utility model discloses a little curve track radius detection device, including test rod and flexible survey chi, the perpendicular setting of flexible survey chi the intermediate position department of test rod, be equipped with the scale on the flexible survey chi, flexible survey chi can be relative the test rod do sliding motion and slip direction and the axis of test rod is perpendicular.The utility model provides a pair of little curve track radius detection device, but the versed sine of direct assay orbital curve department can directly extrapolate the little curve track curvatureradius a little that awaits measuring through versed sine, and the simple operation can alleviate workman's intensity of labour, has better practical spreading value. 本实用新型公开了种小曲线轨道半径检测装置，包括检测杆和伸缩测定尺，所述伸缩测定尺垂直设置在所述检测杆的中间位置处，所述伸缩测定尺上设有刻度，所述伸缩测定尺可相对所述检测杆作滑动运动且滑动方向与所述检测杆的轴线垂直。本实用新型提供的种小曲线轨道半径检测装置，可直接测定轨道曲线处的正矢，通过正矢可直接推算出小曲线轨道待测点的曲率半径，操作便捷，可减轻工人的劳动强度，具有较好的实用推广价值。