Direct current motor for electric capstan

Abstract

The present invention discloses a direct current motor for an electric capstan, belonging to the field of permanent magnet direct current motors. The direct current motor comprises a composite motor housing, the composite motor housing is internally provided with a plurality of magnetic steels, the composite motor housing is formed by interference fit of an S316 stainless steel housing and an internal magnetic conductive motor housing, front and back end caps of the composite motor housing are made of S316 stainless steel materials, a wire hole is arranged on a rear end cap, and annular sear rings are respectively arranged at the front and back end caps. Two pieces of location sleeves made of insulation materials are arranged in the direct current motor for the electric capstan to shortenthe content of the air in the motor while location of the magnetic steels, reduce the generation of condensate water in the motor, greatly improve the housing protection grade (reaching up to IP68), and allow the motor to be more safely and more reliably operated.

Description

technical field [0001] The invention relates to the field of permanent magnet DC motors, in particular to a DC motor used for electric winches. Background technique [0002] The permanent magnet DC motor used for electric winch transmission often works in the marine environment, and the surface of the motor needs to be anti-corrosion. S316 stainless steel has good anti-corrosion performance and is widely used because S316 stainless steel itself does not have magnetic conductivity, and the permanent magnet DC motor has A magnetically conductive material is required for the stator housing. The current conventional practice is to put a stainless steel shell on the outside of the ordinary permanent magnet DC motor. The stainless steel shell is not in contact with the magnetic shell, and there is a gap of 6-8mm in the middle for mounting screws. This solution will increase the volume of the motor; The stainless steel shell does not directly participate in the connection of the f...

AI Technical Summary

Problems solved by technology

The current conventional practice is to put a stainless steel shell on the outside of the ordinary permanent magnet DC motor. The stainless steel shell is not in contact with the magnetic shell, and there is a gap of 6-8mm in the middle for mounting screws. This solution will increase the volume of the motor; The stainless steel shell does not directly participate in the connection of the front and rear end covers, and the sealing effect is poor. Because there is a 6-8mm gap, the air in the gap is insulated, resulting in poor heat dissipation performance of the whole machine; and there is no anti-condensation measure inside the DC motor, which shortens the DC motor. service life

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