A double-string motor for a submersible pump

Abstract

The invention belongs to the technical field of pumps, A motor device for a submersible pump in particular to a double-string motor for a submersible pump, A first spindle and a second spindle are sequentially installed in the motor housing, the first spindle and the second spindle are synchronously rotated at the same speed, rotors are respectively mounted on the outer sides of the first spindleand the second spindle, and a first stator and a second stator are respectively mounted on the inner edges of the motor housings corresponding to the rotors, and the circuits of the first stator and the second stator are connected in series with each other; The motor housing is respectively provided with a rear end portion and a front end portion, A rear bearing group is installed at the rear endpart of the motor housing, a middle bearing group is installed at the middle part, a front bearing group is installed at the front end part, a first spindle is installed between the rear bearing groupand the middle bearing group, a second spindle is installed between the middle bearing group and the front bearing group, and a coupling is installed in the middle bearing group to connect the firstspindle and the second spindle.

Description

technical field [0001] The invention belongs to the technical field of water pumps, and relates to a motor device for a submersible pump, in particular to a double-series motor for a submersible pump. Background technique [0002] Submersible pump is a commonly used device, which is widely used in the process of water extraction from rivers, lakes, deep wells and other water sources. [0003] Existing submersible pumps generally include a pump body and a motor. The motor structure generally includes a motor housing. A front bearing group and a rear bearing group are respectively arranged at both ends of the motor housing. The main shaft is integrally installed with a rotor outside the main shaft, and a stator is installed at a corresponding position outside the rotor. [0004] During use, since the head of the submersible pump is limited, in order to achieve the sum of the heads of the two submersible pumps, in the existing implementation, it is necessary to connect the wat...

AI Technical Summary

Problems solved by technology

However, there are certain deficiencies in the above-mentioned use method. Since the overall length after assembly is the combination of the length of the two submersible pumps and the connectors, the above-mentioned method has high requirements for the space of the place of use, and is not suitable for small well diameters or space. Small working environment, in addition, its length and connection strength seriously affect the transportation and movement of the device, installation trouble, high cost

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