Water-filled submersible motor with stator coil shock protection

Abstract

The invention relates to a water filling type submersible motor with stator coil anti-shocking protection. The water filling type submersible motor with the stator coil anti-shocking protection comprises a drum-shaped motor base penetrating axially, a stator is arranged on a cylindrical gauge inside the motor base, a rotor is arranged in the stator, an upper guide bearing seat and a lower guide bearing seat are arranged at the two ends of the stator respectively, an upper protecting sleeve is fixedly arranged outside a sleeve pipe of the upper guide bearing seat in a sleeved mode, a lower protecting sleeve is fixedly arranged outside a sleeve pipe of the lower guide bearing seat in a sleeved mode, the upper protecting sleeve and the lower protecting sleeve are both in a cantilever shape, the circumference of the cantilever end of the upper protecting sleeve and the circumference of the cantilever end of the lower protecting sleeve are respectively provided with a circle of adjusting holes which are used for adjusting the axial length of the upper protecting sleeve and the axial length of the lower protecting sleeve, and the adjustable length range is 3-5mm. According to the water filling type submersible motor with the stator coil anti-shocking protection, materials used for improvement are few, the upper protecting sleeve and the lower protecting sleeve are simple in structure and convenient to mount, a protection effect is performed on a stator coil when the submersible motor runs by arranging the upper protecting sleeve and the lower protecting sleeve additionally, and therefore the safety and reliability of the running of the motor are ensured.

Description

technical field [0001] The invention belongs to the technical field of submersible motors, and in particular relates to a water-filled submersible motor. Background technique [0002] Usually, the interior of the water-filled submersible motor is filled with water, the stator coil uses water-resistant winding wire, the rotor is contained inside the stator, and the rotor is composed of two parts: the rotor core and the shaft. The cylinder is fitted on the rotating shaft and fixed at a certain position on the rotating shaft. When the motor is energized, due to the principle of electromagnetic induction, the rotor rotates in the inner cavity of the stator driven by the rotating shaft. The diameter of the rotor core is larger than the rotating shaft, which drives the water near both ends, and makes it generate a certain radial velocity and surrounds the rotor core. Tangential velocity of the outer circle. The two ends of the rotor core are just inside the stator coil. Even if ...

AI Technical Summary

Problems solved by technology

The two ends of the rotor core are just inside the stator coil. Even if the machining accuracy is high, it will drive the water with impact velocity to directly impact the stator coil located outside it. When the impact velocity reaches a certain value, it will be directly damaged. The insulation of the stator coil affects the electrical performance of the motor, and the safety and reliability of the motor cannot be guaranteed

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