Caterpillar type walking mechanism of upper chord examination vehicle

Abstract

The invention discloses a caterpillar type walking mechanism of an upper chord examination vehicle. The caterpillar type walking mechanism comprises two pairs of opposite driving caterpillar wheels and driven caterpillar wheels, the same pair of driving caterpillar wheels and driven caterpillar wheels are connected through first connecting rods, the two ends of each first connecting rod are hingedto the corresponding driving caterpillar wheel and the corresponding driven caterpillar wheel respectively, the two first connecting rods are connected through second connecting rods, the two ends ofeach second connecting rod are hinged to the two first connecting rods respectively, the driving caterpillar wheels comprise supporting frames, and two symmetric tension wheels are rotatably connected to the supporting frames and are sleeved with caterpillars. Through the arrangement of guide wheels and clamping mechanisms, an examination vehicle track or any additional facility does not need tobe additionally added on a bridge, instead, the structure of the bridge itself is completely utilized to achieve walking on the bridge, and a large quantity of resources invested in production, manufacturing and installation of the track or the additional facility are saved.

Description

technical field [0001] The invention relates to the technical field of traveling mechanisms, in particular to a crawler-type traveling mechanism of a winding inspection vehicle. Background technique [0002] Steel truss arch bridges are widely used due to their large span and strong bearing capacity. The upper chord of this steel truss arch bridge often has a certain slope, and it is very common for the slope to be around 20 degrees. This requires that the running mechanism of the inspection vehicle for inspection and maintenance of the bridge must have the corresponding climbing ability. At present, the walking mechanisms used for the upper chord inspection vehicles of steel truss arch bridges mainly include: one is to use hydraulic cylinders to push and walk, which has strong climbing ability, but the walking speed is slow, and inspection vehicles must be laid on the whole bridge. Running track; the other is a multi-rubber wheel walking method based on a four-bar linkage ...

AI Technical Summary

Problems solved by technology

At present, the walking mechanisms used for the upper chord inspection vehicles of steel truss arch bridges mainly include: one is to use hydraulic cylinders to push and walk, which has strong climbing ability, but the walking speed is slow, and inspection vehicles must be laid on the whole bridge. Running track; the other is the multi-rubber wheel walking mode based on the four-bar linkage mechanism, which can realize continuous walking, but this method also needs to install tracks on the whole bridge

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