Four-pole high-power air-to-air-cooling positive pressure type explosion-proof motor

Abstract

The invention discloses a four-pole high-power air-to-air-cooling positive pressure type explosion-proof motor. The explosion-proof motor comprises a motor main body and an air-to-air-cooling system; the motor main body comprises a machine seat, a rotor and a stator, wherein the stator comprises a stator iron core, a winding coil and a stator temperature-measuring element; the rotor comprises a rotor iron core, a rotor shaft and rotor inner fans; the machine seat comprises a machine seat shell and a machine seat middle supporting plate; the machine seat middle supporting plate is arranged in the machine seat shell; a stator hole matched with the stator is formed in the machine seat middle supporting plate; the stator is fixed in the machine seat through the stator hole; the rotor iron core comprises rotor punching sheets; and multiple rotor punching sheet grooves, which adopt pear-shaped groove structures, are uniformly formed in the peripheries of the rotor punching sheets. By adoption of the four-pole high-power air-to-air-cooling positive pressure type explosion-proof motor, the high center of the existing four-pole high-power air-to-air-cooling positive pressure type explosion-proof motor can be lowered; the cost can be reduced; the maintenance and replacement of the positive pressure type explosion-proof motor become convenient; and in addition, the efficiency of the positive pressure type explosion-proof motor is improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to an air-air-cooled positive-pressure explosion-proof motor with 4 extremely large powers. Background technique [0002] The existing positive-pressure explosion-proof motors with a center height of 560mm and poles of 4 poles generally adopt a box-type structure. Water-cooled positive pressure explosion-proof motors need to be invested in cooling towers and circulating water pumps. Air-to-air cooling positive pressure explosion-proof motors only need to use natural wind to cool the motors. Because of low investment and convenient maintenance, they are more and more favored by users. The air-cooled positive pressure explosion-proof motors with a center height of 560mm and poles of 4 poles used in the explosion-proof fields such as petroleum and petrochemical industries launched in the country in the 1990s are the key equipment. High and low, high power, domestic motor ma...

AI Technical Summary

Problems solved by technology

The air-cooled positive pressure explosion-proof motors with a center height of 560mm and poles of 4 poles used in the explosion-proof fields such as petroleum and petrochemical industries launched in the country in the 1990s are the key equipment. High and low, high power, domestic motor manufacturers are generally difficult to meet, therefore, the 4-pole air-cooled positive pressure explosion-proof motor with the same center height and power has been in a blank position in China for a long time; at the same time, imported explosion-proof motors are expensive and low in efficiency (for efficiency No requirement), complex structure, very troublesome to maintain

Images