CN217159388U

CN217159388U - Anti-deformation motor rotor end plate

Info

Publication number: CN217159388U
Application number: CN202122386021.XU
Authority: CN
Inventors: 王世洪; 陈昌琼
Original assignee: Chongqing Electric Machine Federation Ltd
Current assignee: Chongqing Electric Machine Federation Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-08-09
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the technical field of motors. The deformation-preventing motor rotor end plate comprises an end plate body, wherein a plurality of heat dissipation holes are circumferentially formed in the end plate body, a plurality of deformation holes are circumferentially formed in the end plate body, and the deformation holes are close to the inner wall of a round hole of the end plate body; a plurality of lugs are circumferentially arranged on the inner wall of the circular hole of the end plate body, and the free ends of the lugs are positioned on one circumference; the number of the convex blocks is the same as that of the deformation holes, and the convex blocks are arranged towards the deformation holes. The scheme mainly solves the problem that the rotating shaft of the motor is damaged due to the fact that the rotating shaft of the motor is heated to expand and extrude the rotor end plate when the rotating shaft of the motor rises due to the fact that the motor works at present.

Description

Anti-deformation motor rotor end plate

Technical Field

The utility model relates to the technical field of motors.

Background

The rotor end plates are arranged on two axial sides of the plurality of rotor punching sheets, the diameters of outer circles of the rotor punching sheets are the same as or similar to the diameters of the outer circles of the rotor punching sheets, and the rotor end plates mainly play a role in compressing the rotor punching sheets and the rotor guide bars.

At present, the rotor end plate is connected with the pivot of motor by interference fit, but in the in-service use process, the motor work makes the pivot temperature of motor rise, leads to the pivot of motor to be heated the inflation extrusion rotor end plate, causes the arcwall face of the pivot of motor impaired.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shape of preapring for an unfavorable turn of events's electric motor rotor end plate to solve present motor work and make the pivot temperature of motor rise, lead to the pivot of motor to be heated the inflation extrusion rotor end plate, cause the impaired problem of pivot arcwall face of motor.

In order to achieve the above object, the basic scheme of the present invention is as follows: an anti-deformation motor rotor end plate comprises an end plate body, wherein a plurality of heat dissipation holes are circumferentially formed in the end plate body, a plurality of deformation holes are circumferentially formed in the end plate body, and the deformation holes are close to the inner wall of a round hole of the end plate body; a plurality of lugs are circumferentially arranged on the inner wall of the circular hole of the end plate body, and the free ends of the lugs are positioned on one circumference; the number of the convex blocks is the same as that of the deformation holes, and the convex blocks are arranged towards the deformation holes.

The advantages of the basic scheme are:

1. when the scheme is installed, the plurality of lugs are heated to be expanded by heating, the diameter of a round hole formed by the free ends of the plurality of lugs is increased, and then a rotating shaft of the motor extends into the round hole of the end plate body; after the lug is cooled, the lug is abutted against the rotating shaft, so that the interference fit between the lug and the rotating shaft is realized, and the connection between the end plate body and the rotating shaft is further realized; during the pivot rotates, the temperature of pivot can continuously rise, leads to the pivot to be heated the inflation for pivot extrusion lug is to the direction motion in deformation hole, compares in prior art, and this scheme can provide the space of lug motion through deformation hole, and then provides the expanded space of pivot, effectively reduces the pivot because of the damage that the thermal expansion caused with this.

2. When a traditional motor runs, a gap may exist between a traditional rotor end plate and a rotating shaft, so that abnormal sound sometimes occurs; according to the scheme, the lug abuts against the rotating shaft, so that no gap exists between the lug and the rotating shaft, and abnormal sound is effectively avoided.

3. During this scheme pivot was rotated, can accelerate the flow of air through the louvre, and then played radiating effect.

Further, the bump is arc-shaped.

Through the arrangement, the arc-shaped convex block can enable the convex block to be in more sufficient contact with the rotating shaft of the motor, and the limiting effect is better.

Furthermore, the deformation hole is arc-shaped, and the arc length of the deformation hole is greater than that of the bump.

Through the arrangement, a more sufficient space is provided for the heating expansion of the rotating shaft.

Furthermore, a pore plate is arranged in the heat dissipation hole.

Through the above setting, through the orifice plate on the one hand can improve the stability of structure, play reinforced (rfd) effect, on the other hand can also guarantee the radiating effect.

Furthermore, the pore plates in the two adjacent radiating holes are fixedly connected.

Through the arrangement, the connection of the side walls of the plurality of radiating holes can be realized, so that the stability of the structure is improved, and the reinforcing effect is enhanced.

Furthermore, the pore plate is Z-shaped and is connected with the inner wall of the heat dissipation hole.

Through the setting, on the one hand, the deformation of the heat dissipation holes can be avoided, on the other hand, the stability of the structure can be improved, and the reinforcing effect is enhanced.

Drawings

Fig. 1 is a top view of a first embodiment of a deformation-preventing motor rotor end plate according to the present invention;

fig. 2 is a top view of a second embodiment of the deformation-preventing motor rotor end plate of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the heat dissipation structure comprises an end plate body 1, heat dissipation holes 2, deformation holes 3, bumps 4 and a pore plate 5.

Example one

Substantially as shown in figure 1: an anti-deformation motor rotor end plate comprises an end plate body 1, wherein a plurality of heat dissipation holes 2 are formed in the end plate body 1 at equal intervals in the circumferential direction, a plurality of deformation holes 3 are formed in the end plate body 1 at equal intervals in the circumferential direction, and the deformation holes 3 are close to the inner wall of a round hole of the end plate body 1; a plurality of lugs 4 are fixedly connected to the inner wall of the circular hole of the end plate body 1 at equal intervals in the circumferential direction, and the free ends of the lugs 4 are located on one circumference, in the embodiment, the lugs 4 and the inner wall of the circular hole of the end plate body 1 are integrally formed; the number of the convex blocks 4 is the same as that of the deformation holes 3, and the convex blocks 4 are arranged towards the deformation holes 3; in this embodiment, the number of the bumps 4 and the number of the deformation holes 3 are four, the number of the bumps 4 and the number of the deformation holes 3 can be increased simultaneously according to the use, and the number of the bumps 4 and the number of the deformation holes 3 are ensured to be the same.

The heat dissipation holes 2 are rectangular; the bump 4 is arc-shaped; the deformation hole 3 is arc-shaped, and the arc length of the deformation hole 3 is larger than that of the bump 4.

The specific implementation process is as follows:

during installation, the four bumps 4 are heated simultaneously, so that the four bumps 4 expand, the diameter of a circular hole formed by the free ends of the four bumps 4 is increased, and then a rotating shaft of the motor extends into the circular hole of the end plate body 1; after the lug 4 is cooled, the lug 4 is abutted against the rotating shaft, so that the lug 4 is in interference fit with the rotating shaft, and the end plate body 1 is connected with the rotating shaft; when a traditional motor runs, a gap may exist between a traditional rotor end plate and a rotating shaft, so that abnormal sound sometimes occurs; according to the scheme, the lug 4 abuts against the rotating shaft, so that no gap exists between the lug 4 and the rotating shaft, and abnormal sound is effectively avoided.

During the rotation of the rotating shaft, the temperature of the rotating shaft can be continuously increased, so that the rotating shaft is heated to expand, and the rotating shaft extrudes the lug 4 to move towards the deformation hole 3; and, during the pivot rotation, can accelerate the flow of air through louvre 2, and then play radiating effect.

Example two

Substantially as shown in figure 2: the structure and implementation of the second embodiment are substantially the same as those of the first embodiment, and the difference is that: the pore plates 5 are fixedly connected in the heat dissipation holes 2, and the pore plates 5 in the two adjacent heat dissipation holes 2 are fixedly connected, namely, the end parts of the pore plates 5 in the heat dissipation holes 2 penetrate through the inner walls of the heat dissipation holes 2 and are fixedly connected with the end parts of the pore plates 5 in the adjacent heat dissipation holes 2. The pore plate 5 is Z-shaped, and the pore plate 5 is connected with four inner walls of the heat dissipation holes 2.

The specific implementation process is as follows:

the pore plate 5 can improve the stability of the structure and play a role in reinforcing on one hand, and can also ensure the heat dissipation effect on the other hand; and, the orifice plate 5 rigid coupling of two adjacent louvres 2 can realize the connection of a plurality of louvres 2 lateral walls, and then improves the stability of structure, strengthens reinforced effect.

Because orifice plate 5 is the zigzag for orifice plate 5 and four inner wall connections of louvre 2 can avoid louvre 2 to warp on the one hand, and on the other hand can also improve the stability of structure, strengthens reinforced effect.

The foregoing is merely an example of the present invention and common general knowledge in the art of known specific structures and/or features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a shape of preapring for an unfavorable turn of events's electric motor rotor end plate, includes the end plate body, circumference is equipped with a plurality of louvres, its characterized in that on the end plate body: a plurality of deformation holes are circumferentially arranged on the end plate body and are close to the inner wall of the round hole of the end plate body; a plurality of lugs are circumferentially arranged on the inner wall of the circular hole of the end plate body, and the free ends of the lugs are positioned on a circle; the number of the convex blocks is the same as that of the deformation holes, and the convex blocks are arranged towards the deformation holes.

2. The deformation-resistant motor rotor end plate of claim 1, wherein: the bump is arc-shaped.

3. The deformation-resistant motor rotor end plate of claim 2, wherein: the deformation hole is arc-shaped, and the arc length of the deformation hole is greater than that of the bump.

4. The deformation-resistant motor rotor end plate of claim 1, wherein: the heat dissipation holes are internally provided with pore plates.

5. The deformation-resistant motor rotor end plate of claim 4, wherein: and the pore plates in the two adjacent radiating holes are fixedly connected.

6. The deformation-resistant motor rotor end plate of claim 5, wherein: the pore plate is Z-shaped and is connected with the inner wall of the heat dissipation hole.