Fatigue test loading device of transportation on bridge

Abstract

The invention provides a fatigue test loading device of transportation on a bridge, which belongs to the test equipment field. The structure comprises a mainframe, two loading tracks which are parallel with each other are horizontally arranged over the mainframe, at least two pairs of loading wheels are arranged at the bottom of the two parallel loading tracks, each pair of loading wheel is connected through a loading shaft, the loading shafts are arranged on a upper support rack, the upper support rack is connected with a lower support rack through a double acting oil cylinder, a rolling module is arranged on the lower support rack; the upper support rack is connected with a traction driving module; the double acting oil cylinder is connected with a hydraulic system. According to the invention, the employed loading tracks, no-load track and the loading wheels between the two are capable of realizing the transportation of loading and no-load, reducing the apparatus height and partial gravity of transportation and decreasing the inertia mass, so that the transportation stability is good. The rolling module of the invention can comprise a rolling steel wheel, and also can comprise two rolling wheel groups, so that the change of rolling mode can be realized, and the accuracy of the test conclusion and test efficiency can be enhanced.

Description

(1) Technical field [0001] The invention relates to a test device, in particular to a bridge running fatigue test loading device. (2) Background technology [0002] Bridge operation fatigue test equipment is a special equipment for testing and testing bridge materials and structures. Existing rolling methods of fatigue test equipment for bridge operation mainly use single steel wheel or double rubber wheel group alone, the accuracy of the experiment is poor and the efficiency is low; if both single steel wheel and double rubber wheel group are used for rolling experiments, it will Two kinds of equipment, the equipment cost of the experiment is higher. In addition, the loading part of the existing bridge operation fatigue test equipment adopts two sets of tracks and two pairs of loading wheels on the upper and lower sides. The two sets of tracks are set back to back between the two pairs of loading wheels. Large size, poor running stability, and difficult transportation, in...

AI Technical Summary

Problems solved by technology

Existing rolling methods of fatigue test equipment for bridge operation mainly use single steel wheel or double rubber wheel group alone, the accuracy of the experiment is poor and the efficiency is low; if both single steel wheel and double rubber wheel group are used for rolling experiments, it will Two kinds of equipment, the equipment cost of the experiment is higher

In addition, the loading part of the existing bridge operation fatigue test equipment adopts two sets of tracks and two pairs of loading wheels on the upper and lower sides. The two sets of tracks are set back to back between the two pairs of loading wheels. Large, poor running stability, and difficult to transport, install and maintain

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