Rail Track Geometry Measurement

摘要

A rail gauge measurement tool includes a frame mounting the tool to a rail vehicle, and an engagement unit that moves relative to the frame. The engagement unit has a first contacting element that maintains contact with a rail as the vehicle moves along a rail track, and a pair of parallel connecting shafts. The tool also includes an air cylinder exerting a biasing force so that the engagement unit maintains contact with the rail as the vehicle travels along the rail track. The tool also includes a linear sensor, separate from the air cylinder, that measures movement of the first rail engagement unit relative to the frame. The linear sensor and the air cylinder are parallel, but in a different plane from the parallel connecting shafts to lend structural support to the tool.

主权项

1) A rail gauge measurement tool comprising:
a frame configured to mount the rail gauge measurement tool to a rail vehicle, a first rail engagement unit configured contact a first rail of a rail track, the first rail engagement unit being movable relative to the frame and comprising a first rail contacting element and a first plurality of parallel connecting shafts extending along a tool axis; a first air cylinder coupled to the first rail engagement unit and configured to exert a biasing force along the tool axis so that the first rail engagement unit maintains contact with the first rail as the rail gauge measurement tool travels along the rail track; and a first linear sensor configured to measure movement of the first rail engagement unit relative to the frame.