Stamping centrifugal pump sealing structure

Abstract

The invention discloses a stamping centrifugal pump sealing structure. The stamping centrifugal pump sealing structure comprises an impeller ring, an impeller ring seat, a water inlet pipe and an impeller ring cover, one end of the water inlet pipe is connected with an inner circle of the impeller ring seat in an inserted interference fit mode, the impeller ring cover is arranged on an outer circle of the impeller ring seat in a sleeving mode, a cavity is defined by the outer circle and the inner wall of the impeller ring seat and the bottom surface of the impeller ring cover, an impeller is sleeved with the impeller ring, and the impeller ring is arranged in the cavity; convex points are arranged on the bottom surface of the impeller ring cover and are used for being clamped with clamping grooves in the impeller ring. The structure has the beneficial effects that (1) the problem about concentricity is solved, and the impeller ring seat is directly in interference fit with the water inlet pipe, so that the concentricity is ensured through matching; (2) machining steps of the new structure are omitted, procedures are reduced, and the cost is reduced; and (3) the convenience of assembly is improved, and the impeller ring cover is directly pressed on the impeller ring seat without being fixed by screws.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, and mainly relates to a stamping centrifugal pump sealing structure. Background technique [0002] Existing technologies such as figure 1 As shown, the end of the water inlet pipe 4 is welded to the connecting plate, the mouth ring 2 is set on the impeller and closely attached to the connecting plate, and then pressed through the mouth ring cover 1 and fastened with screws. The disadvantages of its structure are: (1) The concentricity of the mouth ring structure of the old structure pump body is difficult to ensure, and the sheet metal is directly welded with the water inlet pipe. (2) This structure needs to be processed, which increases the processing steps. (3) The structure has many parts and is troublesome to assemble, and the mouth ring cover and the mouth ring seat need to be fixed with screws. Contents of the invention [0003] The purpose of the present invention is to over...

AI Technical Summary

Problems solved by technology

The disadvantages of its structure are: (1) It is difficult to guarantee the concentricity of the mouth ring structure of the old structure pump body, and it is directly welded with the sheet metal and the water inlet pipe

(2) The structure needs to be processed and the processing steps are increased

(3) There are many structural parts and the assembly is troublesome, and the mouth ring cover and the mouth ring seat need to be fixed with screws

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