CN108696049B - Motor rotating shaft and motor - Google Patents
Motor rotating shaft and motor Download PDFInfo
- Publication number
- CN108696049B CN108696049B CN201810779725.3A CN201810779725A CN108696049B CN 108696049 B CN108696049 B CN 108696049B CN 201810779725 A CN201810779725 A CN 201810779725A CN 108696049 B CN108696049 B CN 108696049B
- Authority
- CN
- China
- Prior art keywords
- balancing
- rotating shaft
- groove
- weight
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004080 punching Methods 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
-
- 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
Abstract
The invention provides a motor rotating shaft and a motor, which comprise a rotating shaft body, wherein at least one balancing groove is further formed in the rotating shaft body, and a balancing weight or a plurality of balancing weights can be arranged in the balancing groove. According to the motor rotating shaft and the motor, the balancing groove and the balancing weight are arranged on the rotating shaft, so that the dynamic balance of the rotating shaft can be adjusted in a mode of arranging the balancing weight in the balancing groove, the unbalanced mass is greatly reduced, further the unbalanced mass is conveniently adjusted on the rotor stop block in a weight removing mode, the damage to the rotor core caused by excessive grinding of the rotor stop block is avoided, the influence on the rotating shaft and the magnetic steel performance during continuous spot welding can be avoided, and the dynamic balance correction efficiency of the motor rotating shaft is improved.
Description
Technical Field
The invention relates to the technical field of motor structures, in particular to a motor rotating shaft and a motor.
Background
The existing high-speed motor rotating shaft structure is composed of an optical axis, a front/rear rotor baffle, a rotor iron core and a precise nut, in order to avoid motor vibration, noise and bearing abrasion caused by unbalance of the rotating shaft, a rotor baffle weight removing mode is adopted in the prior art to realize dynamic balance of the motor rotating shaft, but when the rotor iron core part is longer, the outer diameter is larger, particularly the precise nut selected by increasing the outer diameter is also larger, and unbalance caused by the rotor iron core and the precise nut is larger, so that the rotor baffle cannot meet the weight removing quality required by initial unbalance, and potential safety hazards are caused by the fact that a rotor punching sheet is damaged by continuously polishing the baffle; or adopting a weighting mode to correct dynamic balance, wherein a dynamic balance hole is reserved on the rotor baffle plate, and a copper column or a copper screw is used for weighting, the mode is to eliminate the fact that the counter weight copper column or the copper screw is thrown out when the rotating speed is too high, and the counter weight is usually spot-welded on the rotor baffle plate, but irreversible demagnetization close to magnetic steel near the baffle plate is easily caused by too high welding temperature, so that the motor performance is affected.
Disclosure of Invention
In order to solve the technical problems, a motor rotating shaft and a motor with high reliability are provided.
The utility model provides a motor rotating shaft, includes the pivot body, still be provided with at least one balancing tank that is used for placing the balancing weight on the pivot body, the balancing tank is interior to set up zero or more balancing weights optionally.
The balance groove is formed in the peripheral side face of the rotating shaft body.
The width of the opening of the balance groove is smaller than the width of the bottom of the balance groove.
The width of one end of the balancing weight, which is close to the axis direction of the rotating shaft body, is larger than the width of one end of the balancing weight, which is far away from the axis direction of the rotating shaft body.
The balancing groove is provided with a mounting opening, the width of the mounting opening is equal to the width of the bottom of the balancing groove, and the balancing weight is placed into the balancing groove through the mounting opening.
And the balancing weight at the mounting opening is welded with the balancing groove.
The cross section of the balancing groove is rectangular, trapezoid or triangle, and the cross section of the balancing weight is matched with the cross section of the balancing groove.
The rotating shaft body comprises an optical axis, a rotor core and two rotor baffles, wherein the rotor core is arranged on the optical axis, and each end part of the rotor core is in butt joint with one rotor baffle.
The balancing groove is arranged on one side, far away from the rotor core, of the rotor baffle.
The number of the balance grooves is two, and the two balance grooves are respectively arranged on the two shaft shoulders of the rotor core.
The rotor baffle is provided with a weight reducing structure or a weight increasing structure.
And the weight reducing structure is formed at the weight removing position of the rotor baffle plate.
The weight increasing structure comprises a weight increasing block, and the weight increasing block is detachably arranged on the rotor baffle.
A motor comprises the motor rotating shaft.
According to the motor rotating shaft and the motor, the balancing groove and the balancing weight are arranged on the rotating shaft, so that the dynamic balance of the rotating shaft can be adjusted in a mode of arranging the balancing weight in the balancing groove, the unbalanced mass is greatly reduced, further the unbalanced mass is conveniently adjusted on the rotor stop block in a weight removing mode, the damage to the rotor core caused by excessive grinding of the rotor stop block is avoided, the influence on the rotating shaft and the magnetic steel performance during continuous spot welding can be avoided, and the dynamic balance correction efficiency of the motor rotating shaft is improved.
Drawings
Fig. 1 is a schematic structural diagram of a motor shaft and a motor shaft according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of FIG. 1 at A;
FIG. 3 is a schematic diagram of another structure of a motor shaft according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of FIG. 3B;
in the figure:
1. a rotating shaft body; 2. a balancing groove; 3. balancing weight; 21. a mounting port; 11. an optical axis; 12. a rotor core; 13. a rotor baffle.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The motor rotating shaft as shown in fig. 1 to 4 comprises a rotating shaft body 1, at least one balancing groove 2 for placing balancing weights 3 is further arranged on the rotating shaft body 1, zero or more balancing weights 3 are optionally arranged in the balancing groove 2, dynamic balance of the rotating shaft can be adjusted in a mode of arranging the balancing weights 3 in the balancing groove 2, unbalanced mass is greatly reduced, further unbalanced mass is conveniently adjusted on a rotor stop block in a weight removing mode, damage to a rotor iron core 12 caused by excessive grinding of the rotor stop block 13 is avoided, the rotating shaft and magnetic steel performance can be prevented from being influenced during continuous spot welding, dynamic balance correction efficiency of the motor rotating shaft is improved, and particularly the balancing weights 3 are placed at preset positions in the balancing groove 2 to be welded, so that installation reliability of the balancing weights 3 is improved.
The balancing groove 2 is formed in the circumferential side surface of the rotating shaft body 1, and particularly the balancing groove is an annular groove, and the circle center of the annular groove is located on the axis of the rotating shaft.
The width of the opening of the balancing groove 2 is smaller than the width of the bottom of the balancing groove 2, so that the balancing weight 3 can not deviate from the balancing groove 2 in the balancing groove 2, and the installation reliability of the balancing weight 3 is ensured.
The width of one end of balancing weight 3, which is close to the axis direction of rotating shaft body 1, is greater than the width of one end of balancing weight 3, which is far away from the axis direction of rotating shaft body 1, so that balancing weight 3 can be clamped in balancing groove 2.
The balancing tank 2 is provided with a mounting opening 21, the width of the mounting opening 21 is equal to the width of the bottom of the balancing tank 2, and the balancing weight 3 is placed into the balancing tank 2 through the mounting opening 21, so that the balancing weight 3 can only enter and exit the balancing tank 2 from the mounting opening 21.
When the position where the balancing weight 3 needs to be added is at the installation opening 21, the balancing weight 3 and the balancing groove 2 are welded, so that the installation reliability of the balancing weight 3 is improved.
The cross section of the balancing groove 2 is rectangular, trapezoid or triangle, and the cross section of the balancing weight 3 is matched with the cross section of the balancing groove 2.
The rotating shaft body 1 comprises an optical axis 11, a rotor core 12 and two rotor baffles 13, the rotor core 12 is arranged on the optical axis 11, and each end part of the rotor core 12 is abutted with one rotor baffle 13.
The balancing groove 2 is provided at a side of the rotor barrier 13 away from the rotor core 12.
The number of the balancing grooves 2 is two, and the two balancing grooves 2 are respectively arranged on two shaft shoulders of the rotor core 12, namely, the two balancing grooves 2 are positioned on the outer sides of the two rotor baffles 13.
The rotor baffle 13 is provided with a weight reduction structure or a weight increase structure, and after the set balancing weight 3 is arranged in the balancing tank 2, the weight reduction structure or the weight increase structure is utilized to finely adjust the dynamic balance, so that the accuracy of dynamic balance correction is finally ensured, and the correction efficiency is effectively increased.
The weight-reducing structure is formed on the rotor baffle 13 at the weight-removing position.
The weight increasing structure comprises a weight increasing block which is detachably arranged on the rotor baffle 13.
A motor comprises the motor rotating shaft.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (11)
1. A motor shaft, characterized in that: the novel rotary shaft comprises a rotary shaft body (1), wherein at least one balancing groove (2) for placing balancing weights (3) is further formed in the rotary shaft body (1), and zero or more balancing weights (3) are optionally arranged in the balancing groove (2); the rotating shaft body (1) comprises an optical axis (11), a rotor iron core (12) and two rotor baffles (13), wherein the rotor iron core (12) is arranged on the optical axis (11), and each end part of the rotor iron core (12) is in butt joint with one rotor baffle (13); the number of the balance grooves (2) is two, and the two balance grooves (2) are respectively arranged on two shaft shoulders of the rotor core (12).
2. The motor shaft according to claim 1, wherein: the balance groove (2) is arranged on the peripheral side surface of the rotating shaft body (1).
3. The motor shaft according to claim 1, wherein: the width of the opening of the balance groove (2) is smaller than the width of the bottom of the balance groove (2).
4. A motor shaft as claimed in claim 3, wherein: the width of one end of the balancing weight (3) close to the axis direction of the rotating shaft body (1) is larger than the width of one end of the balancing weight (3) far away from the axis direction of the rotating shaft body (1).
5. The motor shaft according to claim 4, wherein: the balancing groove (2) is provided with a mounting opening (21), the width of the mounting opening (21) is equal to the width of the bottom of the balancing groove (2), and the balancing weight (3) is placed into the balancing groove (2) through the mounting opening (21).
6. The motor shaft according to claim 5, wherein: the balancing weight (3) positioned at the mounting opening (21) is welded with the balancing groove (2).
7. The motor shaft according to claim 1, wherein: the cross section of the balancing groove (2) is rectangular, trapezoid or triangle, and the cross section of the balancing weight (3) is matched with the cross section of the balancing groove (2).
8. The motor shaft according to claim 1, wherein: the balancing groove (2) is arranged on one side of the rotor baffle (13) away from the rotor core (12).
9. The motor shaft according to claim 1, wherein: the rotor baffle (13) is provided with a weight reducing structure or a weight increasing structure.
10. The motor shaft according to claim 9, wherein: the weight increasing structure comprises a weight increasing block which is detachably arranged on the rotor baffle (13).
11. An electric motor, characterized in that: a motor shaft comprising the motor of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779725.3A CN108696049B (en) | 2018-07-16 | 2018-07-16 | Motor rotating shaft and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779725.3A CN108696049B (en) | 2018-07-16 | 2018-07-16 | Motor rotating shaft and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108696049A CN108696049A (en) | 2018-10-23 |
| CN108696049B true CN108696049B (en) | 2024-01-23 |
Family
ID=63850678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779725.3A Active CN108696049B (en) | 2018-07-16 | 2018-07-16 | Motor rotating shaft and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108696049B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489232A (en) * | 2021-07-29 | 2021-10-08 | 中国科学院工程热物理研究所 | Flywheel structure and flywheel energy storage system |
| CN113595322A (en) * | 2021-07-29 | 2021-11-02 | 中国科学院工程热物理研究所 | Anti-disengagement flywheel structure and flywheel energy storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202364006U (en) * | 2011-12-09 | 2012-08-01 | 苏州金莱克汽车电机有限公司 | Motor with pre-balance rotor |
| CN203522467U (en) * | 2014-01-02 | 2014-04-02 | 浙江轩业电气设备有限公司 | Motor shaft |
| CN203774993U (en) * | 2014-01-21 | 2014-08-13 | 西安盾安电气有限公司 | Squirrel-cage motor rotor balancing device |
| CN208589865U (en) * | 2018-07-16 | 2019-03-08 | 珠海格力电器股份有限公司 | Machine shaft and motor |
-
2018
- 2018-07-16 CN CN201810779725.3A patent/CN108696049B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202364006U (en) * | 2011-12-09 | 2012-08-01 | 苏州金莱克汽车电机有限公司 | Motor with pre-balance rotor |
| CN203522467U (en) * | 2014-01-02 | 2014-04-02 | 浙江轩业电气设备有限公司 | Motor shaft |
| CN203774993U (en) * | 2014-01-21 | 2014-08-13 | 西安盾安电气有限公司 | Squirrel-cage motor rotor balancing device |
| CN208589865U (en) * | 2018-07-16 | 2019-03-08 | 珠海格力电器股份有限公司 | Machine shaft and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108696049A (en) | 2018-10-23 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |