A differential housing casting mold

Abstract

The utility model provides a kind of differential shell casting mould, including lower sand mould, upper sand mould, lower mould, upper mould, inner core and auxiliary sand core.Lower mould can be cast in lower sand mould, to obtain lower cavity and lower feeding cavity, upper mould can be cast in upper sand mould, to obtain upper cavity, upper feeding cavity and pouring channel.When closing, upper cavity and lower cavity form cavity, upper feeding cavity and lower feeding cavity form lower riser, the bottom of cavity forms the flange part of differential shell.Inner core is connected in cavity, and upper riser that is communicated with cavity is provided on inner core, pouring material can be stored in upper riser, and pouring material can be fed to differential shell.Auxiliary sand core is arranged in lower riser, and feeding hole that is communicated with cavity is formed in auxiliary sand core, and lower riser can be fed to differential shell during casting.Upper riser and lower riser can be fed to both sides of differential shell in vertical direction, so as to reduce shrinkage and shrinkage porosity and other defects in the process of differential shell casting, improve the yield of differential shell casting.

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