Construction machinery balance weight and manufacturing method thereof

Abstract

The invention belongs to the technical field of engineering machines, and provides an engineering machine counterweight and a manufacturing method thereof. The engineering machine counterweight and the manufacturing method thereof aim to solve the problem that during non-solid casting, the filling range of an internal material is small. The counterweight comprises an internal core-covered material and an external poured material, the internal core-covered material is wrapped in the external poured material, the internal core-covered material comprises combined separable bodies which are combined into an internal material to be poured from bottom to top, and the external poured material is poured outside the internal core-covered material to form a whole. By means of the core covering technique, raw material ore sand metal consumption can be reduced, recycling is convenient, and the counterweight and the method make contribution to recycling of resources on the earth. Compared with counterweights manufactured through some special technologies, the counterweight has great advantages. By means of the integral forming process, outer-layer cast iron or bulb iron and an inner-layer material can be tightly combined, no seams exist, strength and toughness are greatly improved, safety is high, manufacturing cost is low, and good practicality and high market application value are achieved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an engineering machinery balance weight. Background technique [0002] At present, the counterweights used in construction machinery are mainly used to ensure that the weight balance can be achieved when the construction machinery is used and operated, to exert the inherent functions of the construction machinery, to avoid unstable operations, and to achieve the balance of the counterweight. [0003] At present, the usual balance weight of construction machinery is to use cast iron to cast a whole solid balance weight. A few of them use welded steel materials to manufacture balance weight. At least one ton of weight is required, that is to say, the solid cast iron counterweight needs to be made of cast iron with a weight of more than one ton, and some counterweights weigh five tons. This kind of solid cast iron counterweight can no longer adapt to the current energy...

AI Technical Summary

Problems solved by technology

[0003] At present, the usual balance weight of construction machinery is to use cast iron to cast a whole solid balance weight. A few of them use welded steel materials to manufacture balance weight. At least one ton of weight is required, that is to say, the solid cast iron counterweight needs to be made of cast iron with a weight of more than one ton, and some counterweights weigh five tons. This kind of solid cast iron counterweight can no longer adapt to the current energy saving requirements, and in the prior art, non-solid casting is also used inside the balance weight, but the problem of non-solid casting is that the filling of internal materials is a problem, and the prior art has no practical solution for different internal filling materials solution, which greatly reduces the optional range of internal core materials, so a technical solution is urgently needed to solve this technical situation

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