New casting and gating system for wind turbine nacelle castings

Abstract

The invention discloses a novel casting and pouring system for cabin casts of a wind driven generator. The novel casting and pouring system comprises an outer cast moulding sand box, an internal sand box and a base, wherein the internal sand box is arranged in the outer cast moulding sand box; the base is connected to the outer cast moulding sand box in a seal mode; the shapes of the outer cast moulding sand box and the internal sand box are both consistent to that of a cabin of the to-be-manufactured wind driven generator; the upper surfaces of the outer cast moulding sand box and the internal sand box are fixedly connected in a seal mode; resin moulding sand coats the opposite side walls of the outer cast moulding sand box and the internal sand box; a cast moulding cavity is formed between the resin moulding sands; and a horizontal pouring gate for circulation of a metal liquid is also formed on the base, and the cast moulding cavity is communicated with an external metal liquid injection system through the horizontal pouring gate. The casting and pouring system saves materials and labor, and lowers production costs effectively.

Description

technical field [0001] The invention relates to the technical field of casting and pouring processing, in particular to a novel casting and pouring system for a casting of a wind turbine nacelle. Background technique [0002] The traditional casting pouring system generally includes an upper box 5, a middle box 6 and a lower box 7 connected sequentially from top to bottom, and resin molding sand is filled in the sand box, and the casting cavity of the required casting shape is surrounded by the resin molding sand, and then The molten metal is poured into the casting cavity through the sprue. However, most of the existing wind power castings are large-scale products, such as conical supports, wheel hubs and other castings. In this way, a large box needs to be prepared when casting, and a large amount of resin sand needs to be filled, which not only increases production. Cost, but also a waste of a lot of resources and labor, does not meet the needs of energy saving and consu...

AI Technical Summary

Problems solved by technology

However, most of the existing wind power castings are large-scale products, such as conical supports, wheel hubs and other castings. In this way, a large box needs to be prepared when casting, and a large amount of resin sand needs to be filled, which not only increases production. cost, but also wasted a lot of resources and labor, which does not meet the needs of energy saving and consumption reduction advocated by the state

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