Hub casting mold

Abstract

The invention relates to the field of hub mechanical casting molds, in particular to a hub casting mold. The hub casting mold comprises a hub body, a pouring and riser system and a sand core part; the upper end of the center of a hub is connected with a riser through a riser neck; the riser neck is reversely conical; a heat affected block is arranged at the lower end of the riser, and is corresponding to the position of a spoke; a sand core is arranged on one side of the hub for reducing the size of the riser neck and forming the heat affected block; the heat affected block is corresponding to the spoke in number; the sand core is provided for reducing the size of the riser neck; a hand hammer can be used for removing the riser, so that the riser removing cost is greatly reduced; the solidification of the connecting spoke can be delayed to be later than the solidification time of the connecting place of an outer ring and a spoke plate by the heat affected block to guarantee the qualification of the outer ring; the size of the heat affected block is about 20% of the size of the riser arranged at the periphery, so that the utilization rate of molten iron is increased; and the hub casting mold is simple in structure and small in size, increases the production number of each mold, can increase placement of each type by 50%, and improves the production efficiency.

Description

technical field [0001] The invention relates to the field of wheel hub casting molds, in particular to a wheel hub casting mold. Background technique [0002] The wheel hub mold is an important process equipment for casting the wheel hub. The material of this kind of wheel hub parts is nodular cast iron. During casting production, defects such as shrinkage cavities and shrinkage voids are prone to appear in the thick part of the middle and the junction of the outer ring and the web. In order to ensure the internal quality of the middle thick part of the hub, a riser is generally installed on the upper part of the middle thick part for feeding; in order to ensure the internal quality of the junction between the outer ring and the web, generally the outside of the junction of the web and the outer ring is installed. Riser. Using the original mold, the removal of the middle riser needs to be cut and removed by a lathe, which is low in efficiency and high in cost; and because ...

AI Technical Summary

Problems solved by technology

Using the original mold, the removal of the middle riser needs to be cut and removed by a lathe, which is low in efficiency and high in cost; and because the riser is set around the periphery, a riser must be set at the connection of each web, the utilization rate of molten iron is low, and the external setting The riser occupies a large area of ​​the template, and the production quantity of each mold is reduced during production, which reduces the production efficiency and the final economic index is poor

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