CN207801660U - A kind of high-voltage box type motor rotor balanced structure - Google Patents
A kind of high-voltage box type motor rotor balanced structure Download PDFInfo
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- CN207801660U CN207801660U CN201721733711.5U CN201721733711U CN207801660U CN 207801660 U CN207801660 U CN 207801660U CN 201721733711 U CN201721733711 U CN 201721733711U CN 207801660 U CN207801660 U CN 207801660U
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- rotor
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- fan
- annular groove
- balance
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Abstract
The utility model is related to a kind of high-voltage box type motor rotor balanced structures, including rotor shaft, rotor core, axle stretch end internal fan, non-shaft stretching end internal fan, wherein, rotor core is mounted on the middle part of rotor shaft, axle stretch end internal fan and non-shaft stretching end internal fan are separately mounted to by interference fit on the rotor shaft at rotor core both ends, balance of fan annular groove is respectively equipped in the both ends of the surface of two internal fans, balance of fan block is added in annular groove, shaft radial equilibrium annular groove is respectively equipped on rotor shaft between rotor core and two internal fans, shaft balance weight is equipped in the slot.Using the balanced structure, it can effectively solve the problem that the large-scale unbalanced problem of 2P motor rotors, ensure that the flowing of motor interior cooling wind is unimpeded, reduce cost and labor intensity, improve the performance of motor.
Description
Technical field
The utility model is related to high-voltage box type motor technology field more particularly to a kind of high-voltage box type motor rotor are flat
Weigh structure.
Background technology
High-voltage box type YXKK Series Motors are the cage type asynchronous motor of one empty cooler of confining zone sky, have efficiency
The advantages of height, energy conservation and environmental protection, noise be low, with small vibration, dependable performance, is widely used in coal mine, power plant and various industrial and minerals
In the big machineries industry such as enterprise.
High-voltage box type motor is mainly made of stator and rotor, the rotor as rotary body in rotation process, due to
It is distributed in the quality inhomogeneities on each surface, will produce certain centrifugal force, causes motor rotor uneven, generates harmful
Vibration and noise, to influence the work of motor.Therefore, to solve motor rotor imbalance problem, typically electronic
It installs balance ring and balance weight on the rotor of machine additional, but balance ring is installed on rotor and needs balance ring heating mantle being attached to rotor
It balances in land, not only increases production cost and in-site installation working hour, reduce production efficiency, and the balance installed additional
Ring blocks the smoothness of wind path cooling wind in rotor, increases windage, reduces cooling effect of the fan to motor.For this purpose,
Complete series motor eliminates and installs the structure that balance ring carries out rotor balancing on rotor, is changed to using on internal fan for electric machine
The structure progress rotor balancing that annular groove installs balance weight additional is balanced, but for 2P high capacity motors, especially outer diameter in φ 550mm
Above motor is influenced by rotor quality and the opposite big factor of amount of unbalance, only leans against the balance on motor internal fan
The mode of annular groove installation balance weight can not meet the balance requirement of rotor, therefore design one kind can solve large-scale 2P rotor balancings
Inconvenient problem, and do not increase motor manufacturing cost, while not influencing the rotor balancing knot of motor interior cooling wind circulation also
Structure is current project urgently to be resolved hurrily.
Utility model content
It is easy for installation that the purpose of this utility model is to provide a kind of execute-in-place, can effectively solve large-scale 2P rotor balancings
The problem of, and do not increase motor manufacturing cost, while also ensuring that the flowing for not influencing motor interior cooling wind is unimpeded
High-voltage box type motor rotor balanced structure.
Realize that the purpose of this utility model is adopted the technical scheme that：The rotor balancing structure includes rotor shaft, turns
Sub- iron core, axle stretch end internal fan and non-shaft stretching end internal fan, wherein rotor core is mounted on the middle part of rotor shaft, axle stretch end
Internal fan and non-shaft stretching end internal fan are separately mounted to by interference fit on the rotor shaft at rotor core both ends, the wind in two
It is respectively equipped with balance of fan annular groove in the both ends of the surface of fan, balance of fan block is added in annular groove, it is characterised in that：In rotor core
It is respectively equipped with shaft radial equilibrium annular groove on rotor shaft between two internal fans, is equipped with and turns in the shaft radial equilibrium annular groove
Spindle balance block.
It from centre to both sides is in oblique wedge shape that the shaft balance weight, which is special-shaped block structure, thereon end face and lower face,
Middle part is equipped with the tapped through hole for installation.
According to high-voltage box type motor rotor balanced structure made of said program, efficiently solves large-scale 2P motor and turn
The unbalanced problem of son, ensure that the flowing of motor interior cooling wind is unimpeded, reduces cost and labor intensity, improve electricity
The performance of motivation.The high-voltage box type motor rotor balanced structure designs advantages of simple, simple installation, dependable performance.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the structural schematic diagram of balance weight in Fig. 1；
Fig. 3 is the left view of Fig. 2.
Specific implementation mode
Referring to Fig. 1, Fig. 2, Fig. 3, the high-voltage box type motor rotor balanced structure of the utility model, including rotor shaft 1,
Rotor core 2, axle stretch end internal fan 3, non-shaft stretching end internal fan 4, wherein rotor core 2 is mounted on the middle part of rotor shaft 1,
Axle stretch end internal fan 3 and non-shaft stretching end internal fan 4 are separately mounted to the rotor shaft 1 at 2 both ends of rotor core by interference fit
On, it is respectively equipped with balance of fan annular groove 5 in the both ends of the surface of two internal fans, balance of fan block 6 is added in annular groove.In rotor iron
Shaft radial equilibrium annular groove 7 is respectively equipped on rotor shaft 1 between core 2 and two internal fans, in the shaft radial equilibrium annular groove 7
Equipped with shaft balance weight 8, which is special-shaped block structure（See Fig. 2, Fig. 3）, end face and lower face are by centre thereon
It is in oblique wedge shape to both sides, middle part is equipped with the tapped through hole 8-1 for installation.
In use, by installation in the balance of fan annular groove 5 in 4 both ends of the surface of axle stretch end internal fan 3 and non-shaft stretching end internal fan
Balance of fan block 6 for keeping rotor balancing, according to detection case, installation calculates suitable number in shaft radial equilibrium annular groove 7
The shaft balance weight 8 of amount, makes rotor reach balance.Due to two radial rotors balance annular grooves 7 be in the system of getting on the bus of rotor shaft 1 and
At, shaft balance weight 8 can be mounted directly, eliminate heating hot charging balance ring process, therefore, not only reduce production cost and
Labor intensity improves efficiency, and reduces the windage of wind path cooling wind in the blocking increase because of balance ring, improves
Cooling effect of the fan to motor.
Claims (2)
1. a kind of high-voltage box type motor rotor balanced structure, including rotor shaft, rotor core, axle stretch end internal fan, non-axis
Stretch end internal fan, wherein rotor core is mounted on the middle part of rotor shaft, and axle stretch end internal fan and non-shaft stretching end internal fan pass through
Interference fit is separately mounted on the rotor shaft at rotor core both ends, and it is flat that fan is respectively equipped in the both ends of the surface of two internal fans
Weigh annular groove, and balance of fan block is added in annular groove, it is characterised in that：On rotor shaft between rotor core and two internal fans
It is respectively equipped with shaft radial equilibrium annular groove, shaft balance weight is equipped in the shaft radial equilibrium annular groove.
2. high-voltage box type motor rotor balanced structure according to claim 1, it is characterised in that：The balance of fan block
For special-shaped block structure, end face and lower face are in oblique wedge shape from centre to both sides thereon, and middle part is equipped with the screw thread for installation
Through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733711.5U CN207801660U (en) | 2017-12-13 | 2017-12-13 | A kind of high-voltage box type motor rotor balanced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733711.5U CN207801660U (en) | 2017-12-13 | 2017-12-13 | A kind of high-voltage box type motor rotor balanced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801660U true CN207801660U (en) | 2018-08-31 |
Family
ID=63283960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721733711.5U Active CN207801660U (en) | 2017-12-13 | 2017-12-13 | A kind of high-voltage box type motor rotor balanced structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207801660U (en) |
-
2017
- 2017-12-13 CN CN201721733711.5U patent/CN207801660U/en active Active
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