CN108768060B - Rotating shaft with exhaust structure and motor - Google Patents
Rotating shaft with exhaust structure and motor Download PDFInfo
- Publication number
- CN108768060B CN108768060B CN201810837082.3A CN201810837082A CN108768060B CN 108768060 B CN108768060 B CN 108768060B CN 201810837082 A CN201810837082 A CN 201810837082A CN 108768060 B CN108768060 B CN 108768060B
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- Prior art keywords
- bearing
- groove
- rotating shaft
- connecting part
- annular
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- 238000013022 venting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Classifications
-
- 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
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a rotating shaft with an exhaust structure and a motor, wherein the rotating shaft is applied to the motor and comprises a rotating shaft body; one end of the rotating shaft body is provided with a bearing connecting part; an exhaust structure is arranged on the bearing connecting part; the rotating shaft with the exhaust structure and the motor provided by the invention have relatively simple structures, are convenient to assemble and process, and can effectively improve the production efficiency and reduce the noise.
Description
Technical Field
The invention belongs to the technical field of motor parts, and particularly relates to a rotating shaft with an exhaust structure and a motor.
Background
When the existing motor is in special occasions or has higher requirements on protection level, the waterproof bearing is required to meet the connection of the rotating shaft, however, due to the requirements on the protection level of the motor, an end cover bearing chamber of the motor cannot be perforated or an exhaust groove is added, the waterproof bearing cannot be removed through the bearing due to good tightness, lubricating oil must be smeared when the bearing is assembled with the end cover bearing chamber, and the gas cannot be discharged through a gap between the bearing chamber and an outer ring of the bearing, and if the gap is enlarged, the problems of noise and the like caused by poor coaxiality are caused; the problems can be solved by the bearing chamber exhaust groove for the cast aluminum end cover, but the problem can not be realized for the tensile end cover, and the realization cost is higher; therefore, when the existing motor is assembled by using the waterproof bearing, the production is difficult to assemble due to the fact that gas cannot be discharged, the efficiency is low, the abnormal sound rate of the bearing is high, and the problem of main bottleneck of production and processing of the motor is solved.
Based on the technical problems existing in the motor, no relevant solution exists; there is therefore an urgent need to seek an effective solution to the above problems.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides a rotating shaft with an exhaust structure and a motor, aiming at solving the problem of high noise of the existing motor.
The invention provides a rotating shaft with an exhaust structure, which is applied to a motor and comprises a rotating shaft body; one end of the rotating shaft body is provided with a bearing connecting part; the bearing connecting part is provided with an exhaust structure.
Further, the exhaust structure comprises an annular groove and an annular notch groove; the annular groove and the annular notch groove are respectively arranged on the bearing connecting part along the circumferential direction of the rotating shaft; the annular groove and the annular notch groove are communicated through the first opening groove to form a first exhaust passage.
Further, the annular groove is arranged at the upper end of the annular notch groove; the annular notch groove is communicated with the end part of the bearing connecting part through the second open groove so as to form a second exhaust channel.
Further, the first open groove is a circular through groove; the first open slot is arranged on the outer surface of the bearing connecting part along the axial direction of the rotating shaft and is communicated with the outside.
Further, the second open groove is a circular through groove; the second open slot is arranged on the outer surface of the bearing connecting part along the axial direction of the rotating shaft and is communicated with the outside.
Further, the first open slot and the second open slot are respectively arranged at two sides of the rotating shaft.
Further, the cross section of the annular notch groove is V-shaped or concave or U-shaped.
The invention also provides a motor, which comprises a rotating shaft; the rotating shaft is the rotating shaft with the exhaust structure.
Further, the device also comprises an end cover; the end cover is a stretching end cover; the stretching end cover is provided with a bearing chamber; a bearing is arranged in the bearing chamber; waterproof bearings of the bearing connecting parts; the rotating shaft is rotatably arranged in the bearing through the bearing connecting part so that the exhaust structure is communicated with the bearing and/or the bearing chamber.
Further, the exhaust structure comprises an annular groove and an annular notch groove; the annular groove and the annular notch groove are respectively arranged on the bearing connecting part along the circumferential direction of the bearing; the annular groove is arranged at the upper end of the annular notch groove; the distance from the annular groove to the end of the bearing connecting part is larger than the distance from the bearing connecting part to the bearing.
The rotating shaft with the exhaust structure and the motor structure provided by the invention have the following beneficial effects:
firstly, by adopting the structural scheme provided by the invention, the problem that the bearing chamber of the waterproof bearing cannot be exhausted when the cast aluminum end cover, particularly the stretching end cover cannot be provided with the bearing chamber exhaust groove, is solved;
secondly, the structural scheme provided by the invention is adopted, so that the influence on the outer circle part of the bearing chamber of the rotating shaft is reduced to the minimum;
thirdly, by adopting the structural scheme provided by the invention, the bearing is more uniformly stressed when assembled with the rotating shaft, and the bearing stress non-uniformity condition can be effectively avoided;
fourth, adopt the structural scheme that the invention provides, can reduce the noise of the electrical machinery effectively; and the structure is relatively simple, is convenient to assemble and process, and effectively improves the production efficiency.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a prior art spindle structure;
FIG. 2 is a front view of a spindle structure with an exhaust structure according to the present invention;
FIG. 3 is a rear view of a spindle structure with an exhaust structure according to the present invention;
FIG. 4 is an enlarged schematic view of portion A of FIG. 2;
FIG. 5 is an enlarged schematic view of portion B of FIG. 3;
FIG. 6 is a bottom view of a spindle structure with an exhaust structure according to the present invention;
FIG. 7 is a schematic diagram illustrating the assembly of a shaft and a motor end cap according to the present invention;
fig. 8 is a schematic diagram of a motor structure according to the present invention.
In the figure: 1. a rotating shaft; 11. a bearing connection portion; 12. an annular groove; 13. a first open slot; 14. an annular notch groove; 15. a second open slot; 2. an end cap; 3. a bearing; 4. a stator; 5. a rotor.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 2 to 6, the present invention provides a rotary shaft with an exhaust structure, which is applied to a motor and comprises a rotary shaft body; one end of the rotating shaft body is provided with a bearing connecting part 11; an exhaust structure is arranged on the bearing connecting part 11; by providing the exhaust structure on the shaft bearing connection part 11, the bearing chamber or the bearing can be exhausted when the shaft is connected with the bearing in the motor bearing chamber, thereby reducing noise.
Preferably, in combination with the above, as shown in fig. 2 to 6, in this embodiment, the exhaust structure includes an annular groove 12 and an annular notch groove 14; wherein, the annular groove 12 is a snap spring groove; the cross section of the annular notch groove 14 is V-shaped, concave or U-shaped; the bearing connecting part 11 of the rotating shaft 1 is provided with an annular notch groove 14, and the notch area is adjusted by the size, so that the surface notch area of the bearing connecting part is reduced while the exhaust passage area is ensured; specifically, the annular groove 12 and the annular notch groove 14 are provided on the bearing connecting portion 11 in the circumferential direction of the rotating shaft 1, respectively; the annular groove 12 and the annular notch groove 14 are communicated through the first open groove 13 to form a first exhaust passage which can be used for exhausting the bearing; further, the annular groove 12 is disposed at an end of the annular notch groove 14 away from the end of the bearing connecting portion 11; and, the annular notch groove 14 communicates with the end of the bearing connecting part 11 through the second open groove 15 to form a second exhaust passage for exhausting the bottom of the bearing; through adopting above-mentioned scheme, can effectively exhaust motor bearing and bearing room to the noise abatement.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 2 to 6, in this embodiment, the first open slot 13 is a circular through slot; the first open slot 13 is arranged on the outer surface of the bearing connecting part 11 along the axial direction of the rotating shaft 1 and is communicated with the outside; by adopting the scheme, when the rotating shaft is assembled with the bearing, the rotating shaft can be directly communicated with the bearing through the first open slot for exhausting; likewise, the second open slot 15 is a circular through slot; the second open slot 15 is arranged on the outer surface of the bearing connecting part along the axial direction of the rotating shaft 1 and is communicated with the outside; specifically, the first open slot 13 and the second open slot 15 are circular through slots, so that the exhaust channel is maximized, the area of the slotting part of the outer circle of the rotating shaft is minimized, and the adverse effect of slotting effect is reduced; when the rotating shaft is assembled with the bearing, the rotating shaft can be directly communicated with the bearing and the bearing chamber through the second open groove for exhausting.
Preferably, in combination with the above-mentioned solution, as shown in fig. 2 to 6, in this embodiment, the first open slot 13 and the second open slot 15 are respectively disposed on two symmetrical sides of the rotating shaft 1, so as to form a symmetrical exhaust slot structure; the symmetrical exhaust groove structure is adopted, and an annular groove and an annular notch groove are simultaneously formed in the bearing connecting part of the rotating shaft and are used for communicating the symmetrical exhaust groove structure, so that an exhaust channel is formed; the symmetrical exhaust groove structure can simultaneously reduce the abnormal probability caused by uneven bearing force when the rotating shaft is grooved to the minimum.
Correspondingly, in combination with the above scheme, as shown in fig. 7 to 8, the invention also provides a motor, which comprises a rotor 5, a stator 4 and a rotating shaft 1; the rotating shaft 1 is the rotating shaft with the exhaust structure; by adopting the rotating shaft structure, the noise of the motor can be effectively reduced, the motor assembly structure is simplified, and the assembly efficiency is improved.
Preferably, in combination with the above solution, as shown in fig. 7 to 8, the present embodiment further includes an end cover 2; the end cover 2 is a stretching end cover; the end cover 2 is provided with a bearing chamber; a bearing 3 is arranged in the bearing chamber; the bearing 3 is a waterproof bearing; the rotating shaft 1 is rotatably arranged in the bearing 3 through a bearing connecting part, so that the exhaust structure is in contact communication with the bearing 3 and/or the bearing chamber, and the bearing or the bearing chamber is exhausted; by adopting the scheme, when the motor in the occasion of using the waterproof bearing is required and the bearing chamber cannot be provided with the exhaust groove, the problem that the bearing chamber cannot exhaust can be effectively solved; the structure is relatively simple, the production efficiency can be effectively improved, and the problem of high abnormal sound rate of the bearing is solved.
Preferably, in combination with the above, as shown in fig. 7 to 8, in this embodiment, the exhaust structure includes an annular groove 12 and an annular notch groove 14; the annular groove 12 and the annular notch groove 14 are respectively arranged on the bearing connecting part along the circumferential direction of the rotating shaft 1; the annular groove 12 is arranged at the upper end of the annular notch groove 14; and the distance from the annular groove 12 to the end of the bearing connection part is greater than the distance that the bearing connection part extends into the bearing 3; specifically, when the bearing connection part of the rotating shaft 1 is inserted into the bearing 3, the annular groove 12 on the bearing connection part of the rotating shaft 1 needs to be at least partially exposed out of the bearing 3, so that the exhaust is convenient.
The rotating shaft with the exhaust structure and the motor structure provided by the invention have the following beneficial effects:
firstly, by adopting the structural scheme provided by the invention, the problem that the bearing chamber of the waterproof bearing cannot be exhausted when the cast aluminum end cover, particularly the stretching end cover cannot be provided with the bearing chamber exhaust groove, is solved;
secondly, the structural scheme provided by the invention is adopted, so that the influence on the outer circle part of the bearing chamber of the rotating shaft is reduced to the minimum;
thirdly, by adopting the structural scheme provided by the invention, the bearing is more uniformly stressed when assembled with the rotating shaft, and the bearing stress non-uniformity condition can be effectively avoided;
fourth, adopt the structural scheme that the invention provides, can reduce the noise of the electrical machinery effectively; and the structure is relatively simple, is convenient to assemble and process, and effectively improves the production efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.
Claims (8)
1. The rotating shaft with the exhaust structure is applied to a motor and is characterized by comprising a rotating shaft body; one end of the rotating shaft body is provided with a bearing connecting part; an exhaust structure is arranged on the bearing connecting part; the exhaust structure comprises an annular groove and an annular notch groove; the annular groove and the annular notch groove are respectively arranged on the bearing connecting part along the circumferential direction of the rotating shaft; the annular groove is communicated with the annular notch groove through a first opening groove to form a first exhaust channel; the annular groove is arranged at one end of the annular notch groove far away from the end part of the bearing connecting part; the annular notch groove is communicated with the end part of the bearing connecting part through a second open groove so as to form a second exhaust channel.
2. The shaft with an exhaust structure of claim 1, wherein the first open slot is a circular through slot; the first open groove is arranged on the outer surface of the bearing connecting part along the axial direction of the rotating shaft and is communicated with the outside.
3. The shaft with exhaust structure of claim 1, wherein the second open slot is a circular through slot; the second open groove is arranged on the outer surface of the bearing connecting part along the axial direction of the rotating shaft and is communicated with the outside.
4. The rotary shaft with a vent structure according to claim 1, wherein the first open groove and the second open groove are provided on both sides of the rotary shaft, respectively.
5. A shaft with venting feature as defined in any one of claims 2 to 4, wherein the annular recess is V-shaped in cross section.
6. A motor comprises a rotating shaft; the rotary shaft is provided with an exhaust structure according to any one of claims 1 to 5.
7. The motor of claim 6, further comprising an end cap; the end cover is a stretching end cover; the stretching end cover is provided with a bearing chamber; a bearing is arranged in the bearing chamber; the bearing is a waterproof bearing; the rotating shaft is rotatably arranged in the bearing through the bearing connecting part, so that the exhaust structure is communicated with the bearing and/or the bearing chamber.
8. The motor of claim 7 wherein the vent structure comprises an annular groove and an annular notch groove; the annular groove and the annular notch groove are respectively arranged on the bearing connecting part along the circumferential direction of the rotating shaft; the annular groove is arranged at the upper end of the annular notch groove; the distance from the annular groove to the end part of the bearing connecting part is larger than the distance from the bearing connecting part to the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837082.3A CN108768060B (en) | 2018-07-26 | 2018-07-26 | Rotating shaft with exhaust structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837082.3A CN108768060B (en) | 2018-07-26 | 2018-07-26 | Rotating shaft with exhaust structure and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108768060A CN108768060A (en) | 2018-11-06 |
| CN108768060B true CN108768060B (en) | 2024-04-12 |
Family
ID=63971446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810837082.3A Active CN108768060B (en) | 2018-07-26 | 2018-07-26 | Rotating shaft with exhaust structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108768060B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1153819A (en) * | 1967-03-03 | 1969-05-29 | Borg Warner | Vented Mechanical Device |
| JP2003018804A (en) * | 2001-06-27 | 2003-01-17 | Matsushita Seiko Co Ltd | Dc motor and electric apparatus therewith |
| CN201156689Y (en) * | 2007-12-20 | 2008-11-26 | 上海熊猫机械(集团)有限公司 | Wind cooling motor |
| CN208424079U (en) * | 2018-07-26 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotating shaft with exhaust structure and motor |
-
2018
- 2018-07-26 CN CN201810837082.3A patent/CN108768060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1153819A (en) * | 1967-03-03 | 1969-05-29 | Borg Warner | Vented Mechanical Device |
| JP2003018804A (en) * | 2001-06-27 | 2003-01-17 | Matsushita Seiko Co Ltd | Dc motor and electric apparatus therewith |
| CN201156689Y (en) * | 2007-12-20 | 2008-11-26 | 上海熊猫机械(集团)有限公司 | Wind cooling motor |
| CN208424079U (en) * | 2018-07-26 | 2019-01-22 | 珠海格力电器股份有限公司 | Rotating shaft with exhaust structure and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108768060A (en) | 2018-11-06 |
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