Self-coupling mounted axial-mixed flow submerged electric pump with tile-shaped wedged taper sleeves

Abstract

The invention relates to a self-coupling mounted axial-mixed flow submerged electric pump with tile-shaped wedged taper sleeves, which comprises a plurality of tile-shaped wedged taper sleeves, the wedged taper sleeves are arranged on the conical part of the guide vane body of a pump body, the coning angle of the conical part is Beta, the lower part is contacted with a shaft conical ring in a matching way, the mounting angle of the shaft conical ring is Alpha, the outer circle of the wedged taper sleeves is a cylindrical surface, and under the action of an upper O-shaped ring and a lower O-shaped ring mounted on the Alpha-degree conical surface, the tile-shaped wedged taper sleeves are bundled on the conical part of the guide vane body; the centered part of each tile-shaped wedged taper sleeve is a long round slot along the generatrix, which is sleeved on a guide part at a corresponding position on the conical part of the guide vane body; and each guide part consists of two round pins which are separately arranged along the generatrix and mounted on the guide vane body. The invention has the following advantages that: the anti-rotation property of the electric pump is greatly enhanced, and thereby the electric pump avoids the faults of circumferential movement and cable twisting of the prior art due to the insufficient frictional resistance torque of the pump body in the process of starting, stopping and running.

Description

technical field [0001] The invention relates to a submersible electric pump, in particular to a self-coupling installed shaft and mixed flow submersible electric pump with a pad-like wedge-shaped taper sleeve. Background technique [0002] Submersible axial flow pumps and submersible mixed flow pumps are new types of pumping stations with medium and low head and large flow, which are used for drainage and irrigation. At present, the submersible pumps on the market have the following problems: 1. During the starting and running of the motor, due to the insufficient friction of the "O" ring, the pump body is easily damaged by the motor starting and running torque. Circumferential rotation occurs, the cable and the hanging chain button are twisted, the cable is broken or twisted, the cable insulation rubber jacket is broken, and water enters the motor from the cable gap, causing the submersible motor to burn. 2. The positioning of the "O" ring on the cone ring is unstable. Un...

AI Technical Summary

Problems solved by technology

[0003]The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, and to provide a self-coupling shaft and mixed-flow Submersible electric pump, the anti-rotation performance of the electric pump is greatly improved, avoiding the circumferential movement of the pump body due to insufficient frictional resistance torque and the occurrence of twisted cable faults during the start, stop, and operation of the traditional technology

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