CN2257632Y

CN2257632Y - Magnetic coupling electric motor

Info

Publication number: CN2257632Y
Application number: CN 95234446
Authority: CN
Inventors: 聂镜源; 赵丕侠; 陈建波; 丛立山; 刘明军
Original assignee: RONGCHENG CITY SUBMERSIBLE MOTOR FACTORY
Current assignee: RONGCHENG CITY SUBMERSIBLE MOTOR FACTORY
Priority date: 1995-08-03
Filing date: 1995-08-03
Publication date: 1997-07-09
Anticipated expiration: 2005-08-03

Abstract

The utility model relates to a motor, particularly a magnetic coupling motor. Because an output shaft of the motor is connected with an outer rotor, an inner rotor is connected with the output shaft; the inner rotor and the outer rotor are respectively provided with magnets, the coupling function of a magnetic field is used as transferring power and an isolating sleeve separates the inner rotor and the outer rotor into two chambers which are not communicated each other. The utility model has the advantages of no shaft leakage, small size, low cost, high power factor, low use cost, convenient maintenance, etc. The utility model is especially suitable for work places needing no shaft leakage.

Description

The magnetic coupling motor

The utility model relates to motor, specifically a kind of magnetic coupling motor.

As everyone knows, the energy delivery of motor and plant equipment is the coupling that relies on both countershafts, and some motor that use at special occasions, as vacuum pump, refrigerating water pump, various liquid pump, gaseous state pump etc., then exist the shaft seal problem, be connected as the form of the plant equipment that motor and its is supporting, motor is done as a whole potted component, then can accomplish not have fully axle and leak with static seal.The main shielded motor that adopts in the prior art, promptly with a housing whole motor rotor is sealed with the structure of static seal, this motor exists the deficiency that volume is big, cost is high, power factor is low, manufacture difficulty is big, cost of use is high, maintenance is inconvenient.

The purpose of this utility model is to overcome the deficiencies in the prior art, and the magnetic coupling that a kind of volume is little, cost is low, power factor is high, cost of use is low, easy to maintenance motor is provided.

For achieving the above object, feature of the present utility model is that motor flange is connected with terminal pad, motor output shaft is connected with external rotor, internal rotor is connected with output shaft, housing is connected with terminal pad, spacer with internal rotor and external rotor be divided into two chambers, its edge is pressed against between housing and the terminal pad.

The utility model is connected with external rotor owing to motor output shaft, internal rotor is connected with output shaft, the motor rotation drives the external rotor rotation, utilize the coupling in magnetic field, drive internal rotor rotation transferring power, spacer is separated into two chambers with inside and outside rotor, has that cost is low, volume is little, power factor is high, cost of use is low, does not have that axle leaks, advantage easy to maintenance.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model, also is the schematic diagram of a kind of embodiment.

Mark among the figure: housing 1, thrust button 2, bearing 3, output shaft 4, internal rotor 5, inner magnet 6, external rotor 7, outer magnet 8, spacer 9, terminal pad 10, motor flange 11, motor output shaft 2, motor 13, screw 14, screw 15

Below in conjunction with accompanying drawing embodiment of the present utility model is described further: as shown in the figure, terminal pad 10 is connected with motor flange 11 through 8 screws 14, be provided with sealing gasket between terminal pad 10 and the motor flange 11, motor output shaft 12 adopts spline to be connected with external rotor 7, output shaft 4 is through thrust button 2, bearing 3 cooperations are contained on the skeleton of housing 1, and with motor output shaft 12 on same axis, output shaft 4 is connected with internal rotor 5, internal rotor 5, be respectively equipped with inner magnet 6 on the external rotor 7, outer magnet 8, internal rotor 5, external rotor 7 usefulness electrical pure irons are made, inner magnet 6, outer magnet 8 adopts neodymium, iron, rare earth permanent-magnetic material, spacer 9 adopts Reinforced Nylon injection moulding, spacer 9 is located between internal rotor 5 and the external rotor 7, with internal rotor 5, external rotor 7 is divided into two chambers, its edge is pressed against housing 1, between the terminal pad 10, the two-sided sealing gasket that is equipped with in the edge of spacer 9, housing 1 adopts 8 screws 15 to be fastenedly connected with terminal pad 10.During work, motor output shaft 12 drives external rotor 7 rotations, because the coupling in magnetic field, internal rotor 5 is rotation thereupon also, and internal rotor 5 drives output shaft 4 rotations, has carried out transmission of power, because spacer 9 is located between internal rotor 5, the external rotor 7, internal rotor 5 and external rotor 7 are divided into two chambers, the make medium and external rotor 7 and motor 13 at output shaft 4 places are isolated fully, do not have the purpose that axle leaks to reach.

Claims

1, a kind of magnetic coupling motor, be provided with motor, motor flange, motor output shaft, terminal pad, housing, output shaft, internal rotor, inner magnet, external rotor, outer magnet, bearing, thrust button, spacer, it is characterized in that motor flange is connected with terminal pad, motor output shaft is connected with external rotor, internal rotor is connected with output shaft, housing is connected with terminal pad, spacer is divided into two chambers with internal rotor and external rotor, and its edge is pressed against between housing and the terminal pad.