CN201726242U

CN201726242U - Submersible motor magnetic suspension thrust bearing

Info

Publication number: CN201726242U
Application number: CN2010202491039U
Authority: CN
Inventors: 郇宜庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-01-26
Anticipated expiration: 2020-07-06

Abstract

A submersible motor magnetic suspension thrust bearing comprises a thrust plate and a thrust bearing. The submersible motor magnetic suspension thrust bearing is characterized in that the thrust plate is positioned below a rotor of a submersible motor and fixedly connected with the rotor via a bolt, the thrust bearing is fixed onto a base of the submersible motor, the thrust plate and the thrust bearing are in vertical opposite arrangement, an annular groove is cut inside the thrust plate, a strong permanent magnet is fixed in the annular groove, annular glass fiber reinforced plastics are fixed onto the upper annular end surface of the thrust bearing, a strong permanent magnet is fixed inside the thrust bearing, and the strong permanent magnets in the thrust plate and the thrust bearing are the same and positioned vertically opposite to each other. The submersible motor magnetic suspension thrust bearing adopting principle of like poles repel and unlike poles attract of a magnet is provided with the same strong permanent magnets opposite to each other in the thrust plate and the thrust bearing, friction between the thrust plate and the thrust bearing is eliminated, the problem of motor burning caused by abrasion between the thrust plate and the thrust bearing is avoided, maintenance cost is saved, the service life of a submersible motor is prolonged, frictional resistance can be further decreased, motor power can be increased, and electric power can be economized.

Description

The submersible motor magnetic thrust bearing

Technical field

The utility model relates to a kind of submersible motor magnetic thrust bearing, belongs to mechanical field.

Background technology

At present, the problem that usually occurs burn-down of electric motor in the submersible motor, and the burn-down of electric motor majority is to cause because of the wearing and tearing between thrust collar and the thrust bearing, motor after burning also might damage connected water pump, in order to reduce the wearing and tearing between thrust collar and the thrust bearing, prolong the useful life of submersible motor, some manufacturer adopts the thrust bearing of import material, make submersible motor have characteristics such as to bear high thrust and high-wearing feature, but cost is higher relatively, even thrust bearing can bear high-wearing feature, also have friction between thrust collar and the thrust bearing, the resistance when making submersible motor work strengthens, and has reduced power of motor simultaneously.

Summary of the invention

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of friction free submersible motor magnetic thrust bearing is provided, can reduces resistance, increase power of motor, and can prolong the useful life of submersible motor.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of submersible motor magnetic thrust bearing, comprise thrust collar and thrust bearing, it is characterized in that: thrust collar is positioned at the rotor below of submersible motor, and fixedly connected with rotor by bolt, thrust bearing is fixed on the base of submersible motor, thrust collar and thrust bearing are up and down over against setting, cut cannelure in the thrust collar, be fixed with strong magnet forever in the cannelure, be fixed with annulus fiberglass on the annular upper end face of thrust bearing, the thrust bearing internal fixation has strong magnet forever, and thrust collar is identical with strong magnet forever in the thrust bearing and the position is relative up and down.

Be provided with strong magnet forever identical and that the position is relative up and down in thrust collar and the thrust bearing, always there is spacing in the principle according to magnet homopolar-repulsion heteropole is inhaled mutually between thrust collar that is oppositely arranged up and down and the thrust bearing, therefore also do not have friction.Do not have friction between thrust collar and the thrust bearing, can not produce the burn-down of electric motor problem of wearing and tearing and being caused on the one hand, saved maintenance cost because of between thrust collar and the thrust bearing, prolonged the useful life of submersible motor, reduce frictional resistance on the other hand, increased power of motor, saved electric power.

The beneficial effect that the utility model had is: a kind of submersible motor magnetic thrust bearing is provided, adopt magnet homopolar-repulsion heteropole to inhale principle mutually, in thrust collar and thrust bearing, be provided with strong magnet forever identical and that the position is relative up and down, always there is spacing between thrust collar that is oppositely arranged up and down and the thrust bearing, therefore do not have friction yet, can not produce the burn-down of electric motor problem of wearing and tearing and being caused on the one hand because of between thrust collar and the thrust bearing, saved maintenance cost, prolonged the useful life of submersible motor, reduced frictional resistance on the other hand, increase power of motor, saved electric power.

Description of drawings

Fig. 1 is the structural representation that the utility model is applied to submersible motor;

The structural representation of Fig. 2 thrust collar;

Fig. 3 is the A-A profile among Fig. 2;

Fig. 4 is the structural representation of thrust bearing;

Fig. 5 is the B-B profile among Fig. 4.

Among the figure: 1, rotor; 2, thrust collar; 3, thrust bearing; 4, base; 5, strong magnet forever; 6, annulus fiberglass; 7, strong magnet forever; 8, annular upper end face

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

Shown in Fig. 1～5, a kind of submersible motor magnetic thrust bearing, comprise thrust collar 2 and thrust bearing 3, thrust collar 2 is positioned at rotor 1 below of submersible motor, and fixedly connected with rotor 1 by bolt, thrust bearing 3 is fixed on the base 4 of submersible motor, thrust collar 2 and thrust bearing about in the of 3 over against setting, cut cannelure in the thrust collar 2, be fixed with strong magnet 5 forever in the cannelure, be fixed with annulus fiberglass 6 on the annular upper end face 8 of thrust bearing 3, thrust bearing 3 internal fixation have strong magnet 7 forever, and thrust collar is identical with strong magnet forever in the thrust bearing and the position is relative up and down.

Claims

1. submersible motor magnetic thrust bearing, comprise thrust collar and thrust bearing, it is characterized in that: thrust collar is positioned at the rotor below of submersible motor, and fixedly connected with rotor by bolt, thrust bearing is fixed on the base of submersible motor, thrust collar and thrust bearing are up and down over against setting, cut cannelure in the thrust collar, be fixed with strong magnet forever in the cannelure, be fixed with annulus fiberglass on the annular upper end face of thrust bearing, the thrust bearing internal fixation has strong magnet forever, and thrust collar is identical with strong magnet forever in the thrust bearing and the position is relative up and down.