Wind energy yaw brake disc integrated side vertical casting sand box

Abstract

The invention discloses a side-standing casting sand box integrated with a wind energy yaw brake disc, which comprises a hollow annular cylindrical sand box main body and a box cover for closing the opening of the sand box main body. A plurality of sand casting molds stacked in sequence to the right, a yaw brake disc cavity is formed in two adjacent sand casting molds; a vertical sprue is provided on the box cover, and a vertical sprue is formed on the sand casting molds. There is a horizontal runner connecting the vertical runner and the cavity of the yaw brake disc. The side vertical casting sand box of the present invention can cast a plurality of castings at the same time with one sand box, the casting effect is good, the sand-iron ratio can be greatly reduced, the casting process yield rate can be improved, the pass rate can be improved, and a large amount of mold materials and man-hours can be saved. So as to achieve the purpose of reducing production cost and improving production efficiency.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a side-standing casting sand box integrated with a wind energy yaw brake disc. Background technique [0002] The yaw brake disc is a part used in wind turbines, and its shape is a circular sheet. The traditional casting process is flat casting, that is, ordinary upper and lower sand boxes are cast in a horizontal state. Due to the large diameter of the brake disc (up to several meters in diameter) and the hollow in the middle, the sand-iron ratio of the casting (the ratio of the weight of the sand that needs to be used to the weight of the casting when producing a casting) is high, and the process yield (the weight of the casting) The percentage of the sum of the weight of the casting riser and the weight of the casting) is low, and casting defects such as air holes, slag inclusions and deformation are prone to occur on the surface of the casting in the horizontal state, result...

AI Technical Summary

Problems solved by technology

Due to the large diameter of the brake disc (up to several meters in diameter) and the hollow in the middle, the sand-iron ratio of the casting (the ratio of the weight of the sand that needs to be used to the weight of the casting when producing a casting) is high, and the process yield (the weight of the casting) The percentage of the sum of the weight of the casting riser and the weight of the casting) is low, and casting defects such as air holes, slag inclusions and deformation are prone to occur on the surface of the casting in the horizontal state, resulting in a low pass rate of the finished product after machining of the casting, resulting in higher production costs

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