Casting mold and casting method of mining machinery ring gear

Abstract

A mining machine gear ring casting mold comprises an outer ring sand mold, an inner ring sand mold and a casting system, and the inner ring sand mold is arranged in the outer ring mold so that a gear ring mold cavity, a riser neck mold cavity and a riser wall mold cavity are formed between the outer ring sand mold and the inner ring sand mold, and the outer wall of the inner ring sand mold is also provided with a raised circular ring. The invention also provides a method for casting a mining machine gear ring. The method comprises the steps of molding an inner ring lower sand mold, an outer ring upper sand mold and the outer ring sand mold, and making a clip plate, a lower core and an assembly core. According to the casting mold provided by the invention, the gear ring casting mold comprises the outer ring sand mold, the inner ring sand mold and the casting system, and the casting system is arranged in the inner ring sand mold during molding, and is not required to be laid independently; the outer ring sand mold and the inner ring sand mold are assembled with an assembly core method to form the casting mold, and all sand molds are simple in structure, and easy to assembly and locate, without the dislocation problem existing.

Description

technical field [0001] The invention relates to the technical field of ring gear sand casting, in particular to a casting mold and a casting method for a mining machinery gear ring. Background technique [0002] Mine ring gear casting 100 is as the core linkage part of cement machinery, metallurgical industry, building materials industry equipment, and the selection of its casting method has a great influence on manufacturing cost. Its traditional modeling method of the casting of this structure is mainly the tire board core assembly method, and this method needs to make more wooden moulds, and the tire board 200 molds take too much mold storehouse space, cause bigger cost waste. [0003] For the conventional casting method, the upper and lower parts are adopted, which are divided into three layers of sand cores (300, 400, 500), each layer has six sand cores, and a total of 18 sand cores. For the bottom layer of sand cores, special tires need to be set. board for positionin...

AI Technical Summary

Problems solved by technology

[0005] 1. It is necessary to make a wooden baseboard mold and 8 wooden core boxes. The cost of the mold is high and the mold occupies a large area;

[0006] 2. The pouring system needs to be laid on the tire plate, and the lower box where it is located needs to be turned over, and the lower box is easy to deform;

[0007] 3. The upper box where the riser is located needs to be unpacked to clean the cavity, and the insulation board is easy to fall off

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