High- temperature-resistant dust-proof motor

Abstract

The invention relates to a high-temperature-resistant dust-proof motor, which belongs to the technical field of motors. The high temperature-resistant dust-proof motor comprises a stator, a rotor, a left end cover, a right end cover and an outer sleeve, and is characterized in that a fan mechanism comprises a group of fan blades, a movable dustproof ring and a fixed dustproof ring, wherein the movable dustproof ring is fixed with a rotor shaft, the fixed dustproof ring is fixed with the left end cover and matched with the movable dustproof ring, and the group of the fan blades are arranged on the movable dustproof ring at intervals. The high temperature-resistant dust-proof motor has the advantages of preventing dust impurities and water vapor from invading into the stator and rotor from the left end cover, ensuring the service life of the motor, not only ensuring good sealing property,for avoiding leakage and representing safety and being convenient to manufacture, but also protecting a stator winding from being invaded by cooling water, preventing water short-circuit, having good cooling effect, meeting the long-term using requirement under a high-temperature environment, enabling the whole structure to be simple, being convenient to manufacture and mount, and being convenient to maintain.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a high-temperature-resistant and dust-proof motor. Background technique [0002] Motors used in high temperature environments such as heat treatment equipment, dust removal equipment and quenching furnace fire ventilation in steel plants, underground parking garages, subways, tunnels and shafts are usually required to have good resistance. high temperature characteristics. As known in the industry, the cooling effect of the motor determines the temperature rise of the motor, and the temperature rise determines the service life and rated power of the motor. Therefore, improving the cooling effect of the motor has very important positive significance. [0003] There are two types of motor cooling methods, one is air cooling; the other is liquid cooling. The air-cooled cooling medium includes air and hydrogen whose thermal conductivity is 8.4 times that of air, and the ...

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Problems solved by technology

[0004] Chinese utility model patent authorization announcement number CN200944551Y recommends a motor cooled by circulating water. The stator, the front end cover and the rear end cover realize overall cooling. For details, please refer to the last paragraph on page 1 of the patent specification, but there are the following technical problems: First, the sealing between the front end cover and the stator and the rear end cover and the stator is difficult to guarantee ; The 2nd, owing to adopt water baffle to change circulating cooling water channel into S-shape, although this measure can obtain ideal cooling effect, but manufacturing is comparatively troublesome, especially easy to accumulate dirt in the channel, and silts up for a long time; The 3rd is The patent does not teach how the lead-out wire of the stator coil (winding) can avoid the influence of the flow channel, because once the lead-out end of the coil is attacked by cooling water, the entire motor will be short-circuited and damaged; the fourth is that it does not have a dust-proof function

[0005]CN201094128Y provides an energy-saving water-cooled permanent magnet variable frequency speed-adjusting three-phase motor. This patent scheme reflects the cooling of the motor by setting a water jacket on the stator, but it is not disclosed The specific structure of the water jacket and the technical revelation of how the coil winding avoids interference with the water jacket are also not disclosed

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