Manufacturing method of excavator counter weight

Abstract

The invention belongs to the technical field of manufacturing technologies of excavator accessories, and relates to a manufacturing method of an excavator counter weight. The manufacturing method comprises the following steps that a counter weight outer shell with a filling port and a side opening is produced; an outer shell cover plate adaptive to the side opening of the counter weight outer shell is produced, wherein the outer shell cover plate is provided with multiple through holes and form a counter weight concave mold with the counter weight outer shell; a counter weight convex mold adaptive to the through holes in the outer shell cover plate is produced; the counter weight concave mold and the counter weight convex mold are assembled, and filler is added in the filling port; after curing and shaping of the filler is completed, the counter weight convex mold is drawn out, and standing or ventilation is conducted until the filler is completely air-dried; core blocks adaptive to the through holes are produced in batch, one or more core blocks are inserted into the through holes, and the weight of the counter weight is adjusted. The excavator counter weight is air-dried throughthe multiple through holes, so that the filler such as concrete in the excavator counter weight is rapidly air-dried and solidified, and the air-drying and curing time of the counter weight is greatlyshortened.

Description

technical field [0001] The invention belongs to the technical field of manufacturing technology of excavator accessories, and relates to a method for manufacturing an excavator counterweight. Background technique [0002] Construction machinery such as hydraulic excavators generally need to be equipped with counterweights in order to balance the swing of the machine during operation. The traditional counterweight is to divide the hollow counterweight skin into two parts, and one of the counterweight skins is provided with a concrete filling port, through which concrete is filled into the counterweight shell to achieve the specified weight. Then use an appropriate vibrating device to vibrate to remove the internal air, and seal it after the concrete solidifies. [0003] Because the counterweight is filled in the outer skin of the counterweight as a whole, the concrete filled inside can only be air-dried and solidified through the filling hole, which is prone to the phenomeno...

AI Technical Summary

Problems solved by technology

[0003] Due to the overall filling of the counterweight skin, the concrete filled inside can only be air-dried and solidified through the filling hole, which is prone to different air-drying speeds and incomplete air-drying and curing, which eventually leads to poor internal curing of the counterweight. , unevenness, resulting in early rust inside the counterweight, paint film peeling off and other appearance quality

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