CN217010583U

CN217010583U - Motor rotor balancing device and motor rotor equipped with same

Info

Publication number: CN217010583U
Application number: CN202120647118.9U
Authority: CN
Inventors: 马平
Original assignee: NINGXIA NORTHWEST HORSE ELECTRIC MANUFACTURING CO LTD
Current assignee: NINGXIA NORTHWEST HORSE ELECTRIC MANUFACTURING CO LTD
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-07-19
Anticipated expiration: 2031-03-30

Abstract

The utility model provides a motor rotor balancing unit and join in marriage motor rotor of dress balancing unit, includes balancing stand, balancing piece and set screw, and motor rotor's both ends are the fixed balancing stand of joining in marriage respectively, and the balancing piece is joined in marriage the dress in the balancing stand through set screw. The balancing frame capable of balancing weight of the balancing device is arranged on the rotor, and the balancing frame can balance weight at 360 degrees on the circumference at will, so that different angles are met; and the rotating track of the motor rotor is circular after the counterweight. The small motor is a cast aluminum rotor, the circumference of the rotor is provided with a balance column for convenient counterweight, the large motor is a copper bar rotor without the balance column, and the circumferential counterweight of the rotor is difficult; the balancing device is arranged on two sides of the rotor, the balancing frame is provided with the trapezoidal groove, the balancing block can be fixed in the trapezoidal groove anywhere, and the balancing block can be randomly balanced along the circumference of the rotor by 360 degrees, so that the rotating track of the rotor can be effectively ensured to be circular.

Description

Motor rotor balancing device and motor rotor equipped with same

Technical Field

The utility model relates to the technical field of motor manufacturing, in particular to a motor rotor balancing device and a motor rotor assembled with the balancing device.

Background

The rotating electrical machine is an energy conversion electrical appliance that converts electrical energy into mechanical energy. The mechanical energy is transmitted to the shaft through the rotation of the rotor, the rotor can generate an eccentric phenomenon in the manufacturing process, so that the rotor cannot rotate around the axis when rotating, the rotating track is not circular but is elliptical when viewed from the outer surface of the rotor, and the phenomenon is caused by the eccentricity of the rotor; the balancing stand is required to be designed and installed on the rotor, so that the eccentric position of the gravity center of the rotor can be used for balancing weight, and the rotor rotates according to a circular track.

Disclosure of Invention

In view of the above, it is desirable to provide a motor rotor balancing apparatus.

It is also necessary to provide a rotor for an electric machine fitted with balancing means.

The utility model provides a motor rotor balancing unit, includes balancing stand, balancing piece and set screw, and motor rotor's both ends are the fixed balancing stand of joining in marriage respectively, and the balancing piece is joined in marriage through set screw and is adorned in the balancing stand.

Preferably, the balancing stand is ring shape structure, and two balancing stands are joined in marriage the dress respectively at electric motor rotor's both ends, offer the dovetail groove on the circumference of balancing stand, set up the entry on the dovetail groove, and the balancing piece is put into the dovetail groove from the entry to can become circular motion along the dovetail groove, the balancing piece passes through set screw and joins in marriage the dress in the dovetail groove.

Preferably, the balance weight includes a cone portion, a rectangular parallelepiped portion, and a screw hole, and the screw hole penetrates through the cone portion and the rectangular parallelepiped portion, which are integrally formed.

The utility model provides a join in marriage electric motor rotor of dress balancing unit, includes motor shaft, rotor and balancing unit, and the rotor is joined in marriage with the motor shaft and is adorned, and balancing unit is adorned at the both ends of rotor.

Preferably, the balancing device comprises a balancing frame, a balancing block and a fixing screw, the balancing frame is fixedly assembled at two ends of the motor rotor respectively, and the balancing block is assembled in the balancing frame through the fixing screw.

Preferably, the weight includes a tapered portion, a rectangular parallelepiped portion, and a screw hole, and the screw hole penetrates the tapered portion and the rectangular parallelepiped portion, and the tapered portion and the rectangular parallelepiped portion are integrally formed.

The balancing frame capable of balancing weight of the balancing device is arranged on the rotor, and the balancing frame can balance weight at 360 degrees on the circumference at will, so that different angles are met; and the rotating track of the motor rotor after counterweight is circular. The small motor is a cast aluminum rotor, the circumference of the rotor is provided with a balance column for convenient counterweight, the large motor is a copper bar rotor without the balance column, and the circumferential counterweight of the rotor is difficult; the balancing device is arranged on two sides of the rotor, the balancing frame is provided with the trapezoidal groove, the balancing block can be fixed in the trapezoidal groove anywhere, and the balancing block can be randomly balanced along the circumference of the rotor by 360 degrees, so that the rotating track of the rotor can be effectively ensured to be circular.

Drawings

FIG. 1 is a schematic view of a rotor of an electric machine equipped with a balancing device;

FIG. 2 is a schematic view of a gimbal structure;

FIG. 3 is a schematic view of the balance frame from another perspective;

FIG. 4 is a schematic view of a weight block;

FIG. 5 is a schematic view of another aspect of the weight;

in the figure: motor shaft 1, rotor 2, balancing unit 3, balancing frame 30, trapezoidal groove 301, inlet 302, balancing piece 31, frustum portion 310, rectangular solid portion 311, screw hole 312, set screw 32.

Detailed Description

In order to make the technical scheme of the present invention easier to understand, the technical scheme of the present invention is clearly and completely described by using a mode of specific embodiments in combination with the attached drawings.

Referring to fig. 1, 2, 3, 4 and 5, the motor rotor with the balancing device includes a motor shaft 1, a rotor 2 and a balancing device 3, the rotor 2 is assembled with the motor shaft 1, and the balancing device 3 is assembled at two ends of the rotor 2.

The balancing device 3 comprises a balancing frame 30, a balancing block 31 and a fixing screw 32, the balancing frame 30 is fixedly assembled at two ends of the motor rotor 2 respectively, and the balancing block 31 is assembled in the balancing frame 30 through the fixing screw 32.

The balancing stand 30 is a circular structure, two balancing stands 30 are respectively assembled at two ends of the motor rotor 2, a trapezoidal groove 301 is arranged on the circumference of the balancing stand 30, an inlet 302 is arranged on the trapezoidal groove 301, the balancing weight 31 is placed into the trapezoidal groove 301 from the inlet and can move circularly along the trapezoidal groove 301, and the balancing weight 31 is assembled in the trapezoidal groove 301 through the fixing screw 32.

The weight 31 includes a tapered portion 310, a rectangular parallelepiped portion 311, and a screw hole 312, the screw hole 312 penetrates the tapered portion 310 and the rectangular parallelepiped portion 311, and the tapered portion 310 and the rectangular parallelepiped portion 311 are integrally molded.

The set screws 312 are M8 screws.

The balancing stand 30 capable of balancing weight of the balancing device 3 of the utility model is arranged on the rotor 2, and the balancing stand 30 can balance weight at 360 degrees on the circumference at will, thus meeting different angles; after the counterweight, the rotating track of the motor rotor 2 is circular. The small motor is a cast aluminum rotor, the circumference of the rotor is provided with a balance column for convenient counterweight, the large motor is a copper bar rotor without the balance column, and the circumferential counterweight of the rotor is difficult; the balancing device 3 is arranged on two sides of the rotor 2, the balancing frame 30 is provided with the trapezoidal groove 301, and the balancing weight 31 can be fixed anywhere in the trapezoidal groove 301, namely, the balancing weight can be randomly balanced 360 degrees along the circumference of the rotor 2, so that the rotating track of the rotor 2 can be effectively ensured to be circular.

It should be noted that the embodiments described herein are only some embodiments of the present invention, and not all implementations of the present invention, and the embodiments are only examples, which are only used to provide a more intuitive and clear understanding of the present invention, and are not intended to limit the technical solutions of the present invention. All other embodiments, as well as other simple substitutions and various changes to the technical solutions of the present invention, which can be made by those skilled in the art without inventive work, are within the scope of the present invention without departing from the spirit of the present invention.

Claims

1. A motor rotor balancing unit which characterized in that: the motor rotor balancing device comprises a balancing frame, balancing blocks and fixing screws, wherein the balancing frame is fixedly assembled at two ends of the motor rotor respectively, and the balancing blocks are assembled in the balancing frame through the fixing screws.

2. The motor rotor balancing apparatus of claim 1, wherein: the balancing stand is ring shape structure, and two balancing stands are joined in marriage the both ends of dress at electric motor rotor respectively, offer the dovetail groove on the circumference of balancing stand, set up the entry on the dovetail groove, and the dovetail groove is put into from the entry to the balancing piece to can become circular motion along the dovetail groove, the balancing piece passes through set screw and joins in marriage the dress in the dovetail groove.

3. The motor rotor balancing apparatus of claim 2, wherein: the balancing piece comprises a cone part, a cuboid part and a screw hole, wherein the screw hole penetrates through the cone part and the cuboid part, and the cone part and the cuboid part are integrally formed.

4. The utility model provides a dress electric motor rotor of electric motor rotor balancing unit which characterized in that: an electric machine rotor fitted with a motor rotor balancing device according to any one of claims 1 to 3.