| 摘要 |
A method for calibrating railway weighbridges using a portable calibration device with a force-setting mechanism (6), reference force-measuring sensors (4, 5), rail grippers (3), a support bar (7) and a measuring apparatus. One gripper (3) is mounted on a rail (1) of the approach track, while the force-setting mechanism (6) and a second gripper (3) are mounted on a rail (2) of the load-bearing platform of the weighbridge. To prevent detachment of a rail in the proximity of a gripper, a loaded car or a locomotive (8) is positioned on the approach track. Using the force-setting mechanism (6), a fixed force is generated; the force on the load-bearing platform is determined as the difference between the vertical forces from the force-setting mechanism (6) and the gripper (3) mounted on the rail (2) of the load-bearing platform; the measured force on the load-bearing platform is compared with car weighing results and the weighbridge error is determined. Also characterized is a device for calibrating weighbridges. |
