Crane with reinforcing plate

Abstract

Crane, in particular loading and unloading crane which can be carried along on lorries, provided, in at least one zone subjected to high loading, with a reinforcing plate (2) which is welded onto the corresponding crane part (1), wherein the weld seam (3) and that region of the reinforcing plate (2) which is adjacent to the weld seam (3) are, at least in part, ground and cold-formed, in particular cold-formed by hammering or needling. The invention also relates to a method of treating a weld seam (3) by means of which a reinforcing plate (2) is welded onto a crane part (1), wherein the weld seam (3) and that region of the reinforcing plate (2) which is adjacent to the weld seam (3) are, at least in part, ground and then cold-formed.

Description

Cranes with stiffeners technical field The invention relates to a crane, in particular a loading crane which can be carried on a truck, which is provided in at least one high-load area with a reinforcement plate which is welded to the corresponding crane component, and to a A method for preparing a weld seam by means of which a reinforcing plate is welded to a crane component. Background technique Cranes are often provided with stiffeners in highly loaded areas in order to accommodate the peak loads occurring there and to ensure sufficient stability of the corresponding crane components. However, when welding the reinforcing plate it must be ensured that the weld seam does not form a weak point from which cracks can occur, which in turn lead to failure of the component. A corresponding shaping of the reinforcement plate is essential here first. Contents of the invention In addition, it is provided according to the invention that the weld seam and the region of the rei...

AI Technical Summary

Problems solved by technology

However, care must be taken when welding the reinforcement plate that the weld seam does not constitute a weak point from which cracks can occur, which in turn lead to failure of the component

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