Reduction box of aerator and impeller type aerator provided with reduction box

Abstract

The invention discloses a reduction box of an aerator and an impeller type aerator provided with the reduction box. The reduction box mainly comprises a box body, an upper cover, a secondary reduction gear, a bearing, an output shaft and the like, wherein joints of the box body and the upper cover are respectively provided with three semicircular grooves in which support bars can be arranged; thesemicircular grooves are three uniform equal parts on the circumference; and the box body and the upper cover are fastened and sealed together by using bolts. Two semicircular grooves form a round hole. The upper cover and a lower end cover of a motor can be manufactured into a whole body. The lower end of the box body is provided with a sealing chamber; and the sealing chamber and the box body are manufactured into a whole body through compression casting. The weight of an aluminum compression casting reduction box is greatly reduced; the other end of the support bars can be provided with a flat floating body with a small volume to ensure that the aerator floats on the water surface; and two side planes of the flat floating body are parallel with the support bars so that the resistance of the floating body to water flow is reduced when the aerator works, and the aeration efficiency is improved.

Description

technical field [0001] The invention relates to an aerator, in particular to a reduction box of the aerator and an impeller type aerator with the reduction box, belonging to fish farming machinery. Background technique [0002] The aerator is a life-saving and stimulating equipment for fish and shrimp in aquaculture. Existing mechanical aerators mainly include three types: water wheel type, impeller type and water spray type, among which the impeller type aerator is the most widely used. The reduction box of the impeller type aerator is generally made of cast iron shell with sand-turning process, which is troublesome in machining and heavy in weight, so a larger floating body is needed to make it float on the water surface. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a reduction box for an aerator that is light in weight, easy to machine and install, and an impeller type aerator with ...

AI Technical Summary

Problems solved by technology

The reduction box of the impeller type aerator is generally made of cast iron shell and adopts the sand-turning process, which is troublesome in machining and heavy in weight, so a larger floating body is required to make it float on the water surface

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