CN111082593A - Large inertia motor counterweight structure - Google Patents
Large inertia motor counterweight structure Download PDFInfo
- Publication number
- CN111082593A CN111082593A CN201811226391.3A CN201811226391A CN111082593A CN 111082593 A CN111082593 A CN 111082593A CN 201811226391 A CN201811226391 A CN 201811226391A CN 111082593 A CN111082593 A CN 111082593A
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- China
- Prior art keywords
- stator
- balancing weight
- rotating shaft
- rotor
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a large-inertia motor counterweight structure which comprises a rotating shaft, a stator rotor set, a shell, a counterweight block and a flat key, wherein the stator rotor set and the counterweight block are both arranged on the rotating shaft, the stator rotor set and the counterweight block are both arranged inside the shell, and the rotating shaft is partially arranged inside the shell. According to the large-inertia motor counterweight structure, the effect of increasing inertia can be realized by adding the counterweight block, the whole motor does not need to be lengthened and increased, and the whole volume of the motor is reduced under the condition of the same inertia, so that the manufacturing cost of the motor is reduced.
Description
Technical Field
The invention relates to the technical field of motor equipment, in particular to a large-inertia motor counterweight structure.
Background
The core components of the motor are a rotating shaft, a rotor core and a stator, when the motor is assembled, the rotor core is assembled on the rotating shaft, and the stator is assembled outside the rotor. If the inertia of the motor needs to be increased, two ways are adopted: one is to increase the length of the rotating shaft, and the other is to increase the axial diameter of the rotating shaft, which both increase the overall volume of the motor and further increase the manufacturing cost of the motor.
Disclosure of Invention
The invention aims to provide a counterweight structure of a large-inertia motor, which can solve the problems of large volume and high manufacturing cost of the large-inertia motor in the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
the invention provides a large-inertia motor counterweight structure which comprises a rotating shaft, a stator rotor set, a machine shell, a counterweight block and a flat key, wherein the stator rotor set and the counterweight block are both arranged on the rotating shaft, the stator rotor set and the counterweight block are both arranged inside the machine shell, and the rotating shaft is partially arranged inside the machine shell.
As a preferred technical solution, the stator-rotor set includes a rotor core and a stator, the rotor core is fixed on the rotating shaft, the stator is disposed outside the rotor core, the length of the stator is greater than that of the rotor core, and an insulating film is mounted on a portion of the stator beyond the rotor core.
As a preferable technical solution, an extension section is extended from one end of the counterweight block close to the stator rotor set to the inside of the stator, the extension section is disposed at a portion of the stator exceeding the rotor core, and the extension section and the counterweight block are integrally formed.
The axial vacant space of the rotating shaft and the inner space of the stator are fully utilized by arranging the extension section, so that one third of balance weight can be improved without changing the design of other parts; meanwhile, the gravity center of the rotor is close to the front-section bearing part of the motor, so that the stability and the reliability of the motor are improved.
As the preferred technical scheme, the balancing weight is detachably connected with the rotating shaft.
Further technological effect, detachable design can use the balancing weight of different weight according to the in-service use condition, has increased the flexibility of structure.
As the preferred technical scheme, the balancing weight is fixed on the rotating shaft through a flat key, and the rotating shaft and the balancing weight are provided with key grooves matched with the flat key.
Further technological effect, the axial motion of balancing weight has been restricted to the parallel key for the motor remains stable at the in-process overall structure of work.
As a preferred technical scheme, a groove is formed in one end, far away from the stator rotor set, of the balancing weight along the circumferential direction of the balancing weight.
The further technical effect is that the groove is formed, so that the dynamic balance of the motor can be adjusted conveniently.
According to the large-inertia motor counterweight structure, the effect of increasing inertia can be realized by adding the counterweight block, the whole motor does not need to be lengthened and increased, and the whole volume of the motor is reduced under the condition of the same inertia, so that the manufacturing cost of the motor is reduced.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic structural diagram of a counterweight structure of a large inertia motor in embodiment 1;
FIG. 2 is a sectional view of a counterweight structure of a large inertia motor according to embodiment 1;
FIG. 3 is a schematic structural diagram of a counterweight structure of a large inertia motor according to embodiment 2;
fig. 4 is a sectional view of a counterweight structure of a large inertia motor in embodiment 2.
Wherein the reference numerals are specified as follows: the motor comprises a machine shell 1, a stator and rotor set 2, a balancing weight 3, a rotating shaft 4, a flat key 5, a key groove 6, a stator 7, a rotor core 8, an extension section 9 and a groove 10.
Detailed Description
Example 1
As shown in fig. 1 and 2, a large inertia motor counterweight structure includes a rotating shaft 4, a stator and rotor set 2, a housing 1, a counterweight 3 and a flat key 5, wherein the stator and rotor set 2 and the counterweight 3 are both installed on the rotating shaft 4, the stator and rotor set 2 and the counterweight 3 are both disposed inside the housing 1, and the rotating shaft 4 is partially disposed inside the housing 1. Stator rotor group 2 includes rotor core 8 and stator 7, and rotor core 8 is fixed in on the pivot 4, and stator 7 sets up in rotor core 8's outside, and stator 7's length is greater than rotor core 8's length, and the insulating film is installed to the part that stator 7 surpasss rotor core 8. The balancing weight 3 is fixed on the rotating shaft 4 through the flat key 5, and the rotating shaft 4 and the balancing weight 3 are provided with key grooves 6 matched with the flat key 5. The flat key 5 limits the axial movement of the balancing weight 3, so that the whole structure of the motor is kept stable in the working process; detachable design can use the balancing weight 3 of different weight according to the in-service use condition, has increased the flexibility of structure.
Example 2
As shown in fig. 3 and 4, a large inertia motor counterweight structure includes a rotating shaft 4, a stator and rotor set 2, a housing 1, a counterweight 3 and a flat key 5, wherein the stator and rotor set 2 and the counterweight 3 are both installed on the rotating shaft 4, the stator and rotor set 2 and the counterweight 3 are both disposed inside the housing 1, and the rotating shaft 4 is partially disposed inside the housing 1. Stator rotor group 2 includes rotor core 8 and stator 7, and rotor core 8 is fixed in on the pivot 4, and stator 7 sets up in rotor core 8's outside, and stator 7's length is greater than rotor core 8's length, and the insulating film is installed to the part that stator 7 surpasss rotor core 8. The balancing weight 3 is fixed on the rotating shaft 4 through the flat key 5, and the rotating shaft 4 and the balancing weight 3 are provided with key grooves 6 matched with the flat key 5. The flat key 5 limits the axial movement of the balancing weight 3, so that the whole structure of the motor is kept stable in the working process; detachable design can use the balancing weight 3 of different weight according to the in-service use condition, has increased the flexibility of structure.
Compared with the embodiment 1, in the embodiment, an extension section 9 extends from one end of the counterweight close to the stator and rotor set 2 to the inside of the stator 7, the extension section 9 is arranged at a part of the stator 7 exceeding the rotor core 8, and the extension section 9 and the counterweight 3 are integrally formed. By arranging the extension section 9, the axial vacant space of the rotating shaft 4 and the internal space of the stator 7 are fully utilized, so that one third of balance weight can be lifted without changing the design of other parts; meanwhile, the gravity center of the rotor is close to the front-section bearing part of the motor, so that the stability and the reliability of the motor are improved. One end of the balancing weight 3, which is far away from the stator and rotor set, is provided with a groove 10 along the circumferential direction of the balancing weight, and the groove 10 is arranged to facilitate the adjustment of the dynamic balance of the motor.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (6)
1. The utility model provides a big inertia motor counter weight structure, its characterized in that, includes pivot, stator rotor group, casing, balancing weight and parallel key, stator rotor group with the balancing weight all install in the pivot, stator rotor group with the balancing weight all set up in the inside of casing, the pivot part set up in inside the casing.
2. The large inertia motor counterweight structure of claim 1, wherein: the stator rotor set comprises a rotor core and a stator, the rotor core is fixed on the rotating shaft, the stator is arranged outside the rotor core, the length of the stator is larger than that of the rotor core, and the part of the stator, which exceeds the rotor core, is provided with an insulating rubber sheet.
3. The large inertia motor counterweight structure of claim 2, wherein: one end of the balancing weight, which is close to the stator rotor set, extends into the stator to form an extension section, the extension section is arranged on a part of the stator, which exceeds the rotor core, and the extension section and the balancing weight are integrally formed.
4. The large inertia motor counterweight structure of claim 1, wherein: the balancing weight and the rotating shaft are detachably connected.
5. The large inertia motor counterweight structure of claim 4, wherein: the balancing weight is fixed on the rotating shaft through a flat key, and the rotating shaft and the balancing weight are provided with key grooves matched with the flat key.
6. The large inertia motor counterweight structure of claim 1, wherein: one end of the balancing weight, which is far away from the stator rotor set, is provided with a groove along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226391.3A CN111082593A (en) | 2018-10-19 | 2018-10-19 | Large inertia motor counterweight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226391.3A CN111082593A (en) | 2018-10-19 | 2018-10-19 | Large inertia motor counterweight structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111082593A true CN111082593A (en) | 2020-04-28 |
Family
ID=70309473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811226391.3A Pending CN111082593A (en) | 2018-10-19 | 2018-10-19 | Large inertia motor counterweight structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111082593A (en) |
-
2018
- 2018-10-19 CN CN201811226391.3A patent/CN111082593A/en active Pending
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