Integrated permanent magnet intelligent variable frequency motor
A variable frequency motor, intelligent technology, applied in the direction of electrical components, electromechanical devices, mechanical equipment, etc., can solve the problems of increasing the vibration of the rotating shaft and rotor, reducing the service life of the motor, and increasing the rotation gap of the rotating shaft, so as to reduce the wear of the rotating shaft and prolong the service life , reduce the effect of circle jump increase
Active Publication Date: 2020-12-04
ZHEJIANG XILING
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Problems solved by technology
[0005] In order to make up for the deficiencies of the existing technology and solve the problem of the high speed of the existing variable frequency motor, when the bushing is used as the bearing, the rotation gap of the shaft will increase after the bushing is worn, which will increase the circular runout of the shaft when it rotates, and increase the vibration of the shaft and the rotor , increase the wear of the motor and reduce the service life of the motor, an integrated permanent magnet intelligent frequency conversion motor proposed by the present invention
Method used
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[0030] As an embodiment of the present invention, the front end of the arc-shaped plate 23 is fixedly connected to the cover 2, and the cavity between the arc-shaped plate 23, the cover 2 and the graphite tile 22 forms an installation cavity 24, and the installation An air bag 25 is arranged in the cavity 24, and the air bag 25 is filled with methylene chloride liquid. Because the graphite tile 22 has good thermal conductivity, when the distance between the rotating shaft 3 and one side of the graphite tile 22 is too large to be lubricated, the partial wear of the rotating shaft 3 generates a large amount of heat, and the graphite tile 22 can transfer this part of the heat to the When the temperature of the dichloromethane liquid in the airbag 25 is higher than the boiling point of the dichloromethane liquid, the dichloromethane liquid is vaporized to make the airbag 25 expand, and then extrude the graphite tile 22 so that it deforms toward the rotating shaft 3 side, thereby en...
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The invention relates to the technical field of variable frequency motors, in particular to an integrated permanent magnet intelligent variable frequency motor which comprises a motor body. A rotor isarranged in the motor body, a rotating shaft of the rotor extends to the front side and the rear side of the motor body, a rear cover is arranged on the rear side of the motor body, and a fan connected with the rotating shaft is arranged in the rear cover. An end cover is arranged at the front end of the motor body, a bearing seat coaxial with the rotating shaft is arranged in the middle of the end cover, a first hole penetrating front and back is formed in the bearing seat, and a check ring is arranged on the side, close to the rear portion, of the inner wall of the first hole. A shaft sleeve matched with the front end of the rotating shaft is arranged at the front end of the bearing seat, and a third hole for the rotating shaft to pass through is correspondingly formed in the middle ofthe shaft sleeve. A good lubricating effect can be provided through the graphite tile and the shaft sleeve, increase of circular runout during rotation of the rotating shaft is reduced, vibration of the rotating shaft and the rotor is reduced, abrasion of the motor is reduced, and therefore the service life of the motor is prolonged.
Description
technical field [0001] The invention relates to the technical field of variable frequency motors, in particular to an integrated permanent magnet intelligent variable frequency motor. Background technique [0002] With the rapid development of power electronics technology and new semiconductor devices, AC speed regulation technology has been continuously improved and improved, and gradually perfected frequency converters have been widely used in AC motors for their good output waveforms and excellent performance-price ratio. For example: large motors and medium and small roller table motors used in steel mills, traction motors for railways and urban rail transit, elevator motors, lifting motors for container lifting equipment, motors for water pumps and fans, compressors, and household appliances Motors, etc. have been using AC variable frequency speed regulation motors, and achieved good results. [0003] Chinese patent (application number: 2017213403828) discloses a compa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K5/16H02K5/20H02K5/24H02K5/15H02K7/00F16C33/16
CPCF16C33/16H02K5/15H02K5/165H02K5/20H02K5/24H02K7/003
Inventor 胡正会马元恒
Owner ZHEJIANG XILING