CN112217334A - Dynamic balance motor structure - Google Patents
Dynamic balance motor structure Download PDFInfo
- Publication number
- CN112217334A CN112217334A CN202011228568.0A CN202011228568A CN112217334A CN 112217334 A CN112217334 A CN 112217334A CN 202011228568 A CN202011228568 A CN 202011228568A CN 112217334 A CN112217334 A CN 112217334A
- Authority
- CN
- China
- Prior art keywords
- balance
- motor
- rotor
- fixed
- dynamic balance
- 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.)
- Pending
Links
Images
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
- H02K7/04—Balancing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- 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
-
- 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
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the technical field of dynamic balance, in particular to a dynamic balance motor structure.A rotor of a motor is fixedly provided with a balance device, the balance device comprises an annular support frame, the annular support frame is provided with balance units which are uniformly distributed on the circumference, the balance units penetrate through a guide rod, two ends of the guide rod penetrate through springs, one end of each spring is fixed on the balance unit, the other end of each spring is fixed on the annular support frame, in the rotating process of the rotor, the balance units can overcome the acting force of the spring on any side, and the center of gravity of the guide rod is reconstructed, so that the dynamic balance in the rotating process of the rotor is ensured, the vibration of a motor shaft is prevented, and the control precision and the service life of the motor are ensured; the bearing that sets up plays supporting role to motor shaft both ends to bear impact load, and the sealed damping pad of L type both can prevent that the bearing from leaking oil, can the damping again, further improve the dynamic balance performance of motor.
Description
Technical Field
The invention relates to the technical field of dynamic balance, in particular to a dynamic balance motor structure.
Background
The motor contains the shell, and the shell inner wall is fixed with the stator, and the inside rotation of shell is connected with the motor shaft and fixes the rotor at the motor epaxial, and the rotor is when rotating, and its dynamic balance coefficient has great influence to the wholeness ability of motor, and when the dynamic balance of rotor was not good, the motor shaft that easily takes place vibrates, seriously influences motor control accuracy and life.
Disclosure of Invention
The invention provides a dynamic balance motor structure, aiming at overcoming the defect that the dynamic balance of the existing motor is poor.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a dynamic balance motor structure, contains end cover one, casing and end cover two, the casing inner wall is fixed with the stator, rotate between end cover one and the end cover two and connect the motor shaft, be fixed with the rotor on the motor shaft, the rotor is located the stator, characterized by, be fixed with balancing unit on the rotor, balancing unit contains the annular bracing frame, set up the balanced unit of circumference equipartition on the annular bracing frame, the balanced unit wears on the guide bar, the spring has been worn at the guide bar both ends, spring one end is fixed on the balanced unit, and the other end is fixed on the annular bracing frame.
According to another embodiment of the invention, it is further included that the end of the rotor is provided with a groove, and the balancing device is located in the groove and fixed by bolts.
According to another embodiment of the invention, the annular supporting frame of the balancing device is provided with annular grooves which are uniformly distributed on the circumference, the guide rod is arc-shaped and is positioned in the annular groove, and the end part of the spring is fixed on the inner wall of the annular groove.
According to another embodiment of the present invention, it further comprises that the balancing device has two groups, which are respectively located at two ends of the rotor. Through two groups of balancing devices, the symmetry of the structures at the two ends of the rotor is guaranteed, meanwhile, the position of gravity center reconstruction is increased, and the dynamic balance performance of the motor is better guaranteed.
According to another embodiment of the present invention, further comprising at least three groups of said balancing units.
According to another embodiment of the invention, the motor shaft is rotatably connected with the first end cover and the second end cover through bearings, and the bearings are provided with sealing vibration damping pads with L-shaped sections. The bearing plays a supporting role to the both ends of motor shaft to bear impact load, and the sealed damping pad of L type both can prevent that the bearing from leaking oil, can the damping again, further improves the dynamic balance performance of motor.
The invention has the advantages that in the process of rotor rotation, the balancing unit can overcome the acting force of any side spring and reconstruct the gravity center on the guide rod, thereby ensuring the dynamic balance in the process of rotor rotation, preventing the motor shaft from vibrating, and ensuring the control precision and the service life of the motor; the bearing that sets up plays supporting role to motor shaft both ends to bear impact load, and the sealed damping pad of L type both can prevent that the bearing from leaking oil, can the damping again, further improve the dynamic balance performance of motor.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the rotor structure;
fig. 3 is a schematic structural diagram of another embodiment of the present invention.
In the figure, the motor comprises an end cover I, an end cover II, a stator, a motor shaft 5, a rotor 6-1, a groove 7, an annular supporting frame 7-1, an annular supporting frame 7-2, a balancing unit 7-3, a guide rod 7-4, a spring 7-5, an annular groove 8, a bearing 9 and a sealing vibration damping pad.
Detailed Description
Referring to fig. 1 to 2, which are schematic structural views of the present invention, a dynamic balance motor structure includes a first end cover 1, a casing 2, and a second end cover 3, a stator 4 is fixed on the inner wall of the shell 2, a motor shaft 5 is rotatably connected between the first end cover 1 and the second end cover 3, a rotor 6 is fixed on the motor shaft 5, the rotor 6 is positioned in the stator 4, a balancing device 7 is fixed on the rotor 6, the balancing device 7 comprises an annular supporting frame 7-1, balancing units 7-2 which are uniformly distributed on the circumference are arranged on the annular supporting frame 7-1, the balance unit 7-2 is penetrated on the guide rod 7-3, the two ends of the guide rod 7-3 are penetrated with springs 7-4, one end of the spring 7-4 is fixed on the balance unit 7-2, and the other end is fixed on the annular support frame 7-1.
In the application, a plurality of balancing units 7-2 are arranged in the balancing device 7, in the rotating process of the rotor 6, the balancing units 7-2 can overcome the acting force of the spring 7-4 on any side, and gravity center reconstruction is carried out on the guide rod 7-3, so that dynamic balance in the rotating process of the rotor 6 is ensured, the motor shaft 5 is prevented from vibrating, and the control precision and the service life of the motor are ensured.
According to another embodiment of the invention, it is further included that the end of the rotor 6 is provided with a groove 6-1, and the balancing device 7 is located in the groove 6-1 and fixed by bolts.
According to another embodiment of the invention, further comprising that the annular supporting frame 7-1 of the balancing device 7 is provided with annular grooves 7-5 which are uniformly distributed on the circumference, the guide rod 7-3 is arc-shaped and is positioned in the annular groove 7-5, and the end part of the spring 7-4 is fixed on the inner wall of the annular groove 7-5.
According to another embodiment of the present invention, it is further included that there are two groups of said balancing means 7, one at each end of the rotor 6. Through two groups of balancing devices 7, the symmetry of the structures at the two ends of the rotor 6 is ensured, and meanwhile, the position of gravity center reconstruction is increased, so that the dynamic balance performance of the motor is better ensured.
According to another embodiment of the present invention, it further comprises at least three groups of said balancing units 7-2.
According to another embodiment of the invention, a bearing 8 is arranged at the rotary connection position of the motor shaft 5 and the first and second end covers 1 and 3, and a sealing vibration damping pad 9 with an L-shaped section is arranged at the bearing 8. The bearing 8 supports two ends of the motor shaft 5 and bears impact load, and the L-shaped sealing vibration damping pad 9 can prevent the bearing 8 from leaking oil and damp vibration, so that the dynamic balance performance of the motor is further improved.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A dynamic balance motor structure comprises a first end cover (1), a casing (2) and a second end cover (3), wherein a stator (4) is fixed on the inner wall of the casing (2), a motor shaft (5) is rotatably connected between the first end cover (1) and the second end cover (3), a rotor (6) is fixed on the motor shaft (5), and the rotor (6) is positioned in the stator (4), the dynamic balance motor structure is characterized in that a balance device (7) is fixed on the rotor (6), the balance device (7) comprises an annular support frame (7-1), balance units (7-2) which are uniformly distributed on the circumference are arranged on the annular support frame (7-1), the balance units (7-2) are penetrated on guide rods (7-3), springs (7-4) are penetrated at two ends of the guide rods (7-3), one end of each spring (7-4) is fixed on the balance unit (7-2), the other end is fixed on an annular supporting frame (7-1).
2. A dynamically balanced motor construction according to claim 1, characterised in that the rotor (6) is provided with recesses (6-1) at its ends, and that the balancing means (7) is located in the recesses (6-1) and secured by means of bolts.
3. A dynamic balance motor structure according to claim 1, characterized in that the ring-shaped support frame (7-1) of the balance device (7) is provided with ring grooves (7-5) which are uniformly distributed on the circumference, the guide rods (7-3) are arc-shaped and are positioned in the ring grooves (7-5), and the end parts of the springs (7-4) are fixed on the inner walls of the ring grooves (7-5).
4. A dynamically balanced motor construction according to any one of claims 1 to 3 characterised in that there are two groups of balancing means (7) located at each end of the rotor (6).
5. A dynamically balanced motor construction according to claim 1, characterized in that the number of balancing units (7-2) is at least three.
6. The dynamic balance motor structure as claimed in claim 1, wherein a bearing (8) is arranged at the rotary connection position of the motor shaft (5) and the first end cover (1) and the second end cover (3), and a sealing damping pad (9) with an L-shaped section is arranged at the bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228568.0A CN112217334A (en) | 2020-11-06 | 2020-11-06 | Dynamic balance motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011228568.0A CN112217334A (en) | 2020-11-06 | 2020-11-06 | Dynamic balance motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112217334A true CN112217334A (en) | 2021-01-12 |
Family
ID=74056588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011228568.0A Pending CN112217334A (en) | 2020-11-06 | 2020-11-06 | Dynamic balance motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112217334A (en) |
-
2020
- 2020-11-06 CN CN202011228568.0A patent/CN112217334A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101070907B (en) | A gearbox for a wind turbine | |
| JPH0676806B2 (en) | Support assembly for rotating shaft | |
| CN205605484U (en) | Vertical molecular pump upper bearing damping structure with dual damping function | |
| WO2021098549A1 (en) | Coupling for axle-hung direct drive motor and method for designing rigidity thereof | |
| CN103758916B (en) | A kind of damping shock absorber | |
| CN205047663U (en) | Rotor support structure | |
| CN213879525U (en) | Dynamic balance motor structure | |
| CN201297208Y (en) | Bearing unit with extruded oil film groove and squirrel-cage elasticity supporting structure | |
| CN112217334A (en) | Dynamic balance motor structure | |
| CN103215677A (en) | Damping vibration attenuation metacentric-type electric spindle centrifugal machine | |
| CN110994873B (en) | Vibration-damping motor support | |
| CN202811831U (en) | Elastic supporting device | |
| CN207814225U (en) | Double-layer submersible pump bearing | |
| CN204231084U (en) | The shockproof lid of a kind of motor | |
| CN114483789A (en) | Porous tilting pad gas bearing based on electromagnetic damper | |
| CN209957950U (en) | Spinning frame spindle with elastic rubber ring support | |
| CN206694438U (en) | A kind of duplex bearing fixed bearing block | |
| CN210327264U (en) | High-precision self-balancing silent motor | |
| CN113699735A (en) | Drum washing machine without outer drum | |
| CN202374082U (en) | Shaded-pole motor and support structure thereof | |
| CN202884024U (en) | Sealing device for single crystal furnace main shaft | |
| CN102996704B (en) | Mechanical vibration signal vibration-damping and filtering device for high-speed gear box | |
| RU37401U1 (en) | ELASTIC DAMPING ROTOR SUPPORT | |
| CN2935608Y (en) | Anti-vibration structure for motor | |
| CN201464122U (en) | Principal axis supporting structure of high-speed dynamic balancing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |