An outrigger mechanism for engineering vehicles and a bridge inspection vehicle

Abstract

The invention relates to an outrigger mechanism for an engineering vehicle. The outrigger mechanism comprises an upper outrigger (3), a lower outrigger (4) and a telescopic oil cylinder (1), wherein the first ends of the upper outrigger (3) and the telescopic oil cylinder (1) are articulated with a frame (2) of the engineering vehicle respectively; the second ends of the upper outrigger (3) and the telescopic oil cylinder (1) are articulated with the lower outrigger (4) respectively; and the frame (2), the upper outrigger (3), the lower outrigger (4) and the telescopic oil cylinder (1) form a four-connecting-rod mechanism. The invention also relates to a bridge detection vehicle. In the invention, since the oil cylinder, the frame, the upper outrigger and the lower outrigger form the four-connecting-rod mechanism, the force bearing points are increased, and the load at the articulation points is effectively reduced; and by designing the upper outrigger and the lower outrigger, the stroke of the oil cylinder can be reduced in the case of same support function, the resource cost is saved, the load on the articulation point is effectively reduced, and the overload phenomenon of the oil cylinder is avoided.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to an outrigger mechanism for engineering vehicles and a bridge inspection vehicle. Background technique [0002] At present, the outrigger mechanism used by the bridge inspection vehicle forms a stable triangular structure through the oil cylinder, frame, and outriggers to realize the load-bearing function. Through the expansion and contraction of the oil cylinder, the support and recovery of the outrigger mechanism are realized. In addition, there are rollers on the outrigger mechanism, which are driven by a reducer to realize the front and rear operation movement of the bridge inspection vehicle. Although the triangular structure formed by the oil cylinder, frame, and outriggers has good stability, in order to meet the height requirements of the rollers from the ground during the recovery process of the outriggers, the stroke requirements of the oil cylinder are relatively h...

AI Technical Summary

Problems solved by technology

Although the triangular structure formed by the oil cylinder, frame, and outriggers has good stability, in order to meet the height requirements of the rollers from the ground during the recovery process of the outriggers, the stroke requirements of the oil cylinder are relatively high.

In addition, due to the limitation of the height from the ground for the extension and contraction of the outriggers, the force at the hinge point between the outriggers and the frame is too large, and the bearing capacity of the oil cylinder is large, which may easily cause cracking and damage to the structural parts of the hinged parts.

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