Sand mould structure pouring body of automobile power system crankshaft shell mold

Abstract

The invention provides a sand mould structure pouring body of an automobile power system crankshaft shell mold. The sand mould structure pouring body comprises sand mould bodies, casting mold cavities, dead heads, ingates, a cross gate, a sprue, a sprue cup and chilling blocks; the two casting mold cavities are symmetrically arranged on the sand mould bodies, one dead head is communicated to the upper portion of each casting mold cavity, the chilling blocks are placed at the overheating positions of the casting mold cavities, and the casting mold cavities are communicated with the ingates through bottom pouring type connection; and the ingates are communicated with the one cross gate, the cross gate is communicated with the sprue, and the sprue is connected with the sprue cup. According to the sand mould structure pouring body, the iron pattern sand coating technology is adopted for replacing wet molding sand technology for producing a crankshaft, and key product features such as product materials, sizes and dynamic balance are effectively guaranteed; and meanwhile, the product appearance is improved, the product quality is improved, the polishing treatment working amount is reduced, the waste rate is reduced, and the obvious economic benefit is obtained.

Description

technical field [0001] The invention relates to the field of casting of automobile parts, in particular to a casting body of a sand mold structure of a crankshaft shell mold of an automobile power system which optimizes the production process of the crankshaft of the automobile power system, improves the internal quality of the casting, and improves the appearance of the product. Background technique [0002] The crankshaft is one of the key components of the vehicle power system, and its performance directly affects the performance and service life of the engine. When the crankshaft is working, it needs to bear a large load of bending moment, torque and impact. The common failure modes are bending fatigue fracture and journal wear. Therefore, the crankshaft material is required to have high rigidity and fatigue strength as well as good wear resistance. Especially in recent years, the increase in the application of turbocharged engines has put forward higher and higher requ...

AI Technical Summary

Problems solved by technology

[0004] At present, similar products cast by traditional technology use clay green sand technology, the surface of the crankshaft is rough, the waste of sand holes is high, the internal loose defects cannot be solved, and the material cannot be effectively guaranteed.

Not only is the product quality difficult to improve, but also the economic benefits are low, which wastes the company's production labor costs;

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