CN107394958B - Fan-type Asynchronous Frequency-variable speed regulating motor - Google Patents
Fan-type Asynchronous Frequency-variable speed regulating motor Download PDFInfo
- Publication number
- CN107394958B CN107394958B CN201710588926.0A CN201710588926A CN107394958B CN 107394958 B CN107394958 B CN 107394958B CN 201710588926 A CN201710588926 A CN 201710588926A CN 107394958 B CN107394958 B CN 107394958B
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- CN
- China
- Prior art keywords
- rotor
- fan
- gear
- shell
- speed
- 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.)
- Expired - Fee Related
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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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/03—Machines characterised by thrust bearings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of fan-type Asynchronous Frequency-variable speed regulating motors, including shell, external stator component, internal rotor component, the frequency converter for the external stator assembly power supply and cooling speed adjusting gear, it is characterised in that: the external stator component is fixedly installed in the shell；The internal rotor component includes rotor, is uniformly distributed around rotor axis and multiple guide posts axially through the rotor and is connected to output panel of each guide shaft end for exporting the power of rotor outward；Guide post described in wherein at least one is screw rod, the screw rod is with rotor by being threadedly engaged and rotor can be driven to move along axial reciprocating by its rotation, the cooling speed adjusting gear includes that the intracorporal fan shaft of shell and the flabellum for being fixed on the fan shaft are protruded into from hull outside, power is transferred to fan shaft by planetary gear mechanism by the rotor, this cooling effect of motor is preferable, and can be adjusted the speed using weak-magnetic speed-regulating principle.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of fan-type Asynchronous Frequency-variable speed regulating motor.
Background technique
The workload of water pump, blower etc. often has the characteristic of constant power, and the characteristic curve of work is often
With the increase and decrease of revolving speed, therefore, the revolving speed of the motor as driving power source also needs to be adjusted, speed regulating motor in the prior art
It is the revolving speed for changing motor using the methods of the series of change motor, voltage, electric current, frequency, so that motor, which reaches higher, to be made
With a kind of motor of performance.
The speed regulating method of existing speed regulating motor usually there are several types of: one: pole-changing logarithm speed regulation, this speed regulating method be use
The mode of connection for changing stator winding reaches speed regulation purpose to change cage electromotor stator number of pole-pairs, and feature is as follows: 1, having
Harder mechanical property, has good stability；2, high-efficient without slip loss；3, wiring is simple, easy to control, price is low；4, have
Grade speed regulation, it is differential larger, stepless speed control cannot be obtained；5, it can be used cooperatively, obtain with variable voltage control, electromagnetic slip clutches
The stepless speed control characteristic of greater efficiency；Two: frequency control, frequency control is to change the frequency of motor stator power supply, to change
Become the speed regulating method of its synchronous rotational speed.Frequency conversion speed-adjusting system capital equipment is to provide the frequency converter of variable-frequency power sources, and frequency converter can divide
At exchange-DC-AC frequency converter and Communication-Communication frequency converter two major classes, the country is mostly become using cross-straight-intersection at present
Frequency device.Three: weak-magnetic speed-regulating, i.e., in speed regulation of the frequency converter to asynchronous machine, when the output frequency of frequency converter is higher than Rated motor
When frequency, electric machine iron core magnetic flux starts to weaken, and motor speed is made to be higher than rated speed, and existing frequency control motor passes through change
The frequency that frequency device changes stator power realizes speed regulation, and since the performance of frequency converter limits, the speed adjustable range of variable-frequency motor is limited.Separately
Outside, existing speed regulating motor is not provided with cooling fan mostly, and minority is arranged in the motor of cooling fan, and fan is directly by motor
Rotor driving, when motor speed is lower, the revolving speed of fan is relatively low, it is difficult to so that motor is obtained enough air-cooled amounts, lead to electricity
Machine operating temperature is excessively high.
Therefore, in order to solve the above problem, need a kind of cooling effect preferable, and weak-magnetic speed-regulating and frequency control can be combined
The fan-type Asynchronous Frequency-variable speed regulating motor that principle is adjusted the speed.
Summary of the invention
The object of the present invention is to provide a kind of cooling effect is preferable, and can in conjunction with weak-magnetic speed-regulating and Variable Frequency Speed Regulation Principle into
The fan-type Asynchronous Frequency-variable speed regulating motor of row speed regulation.
Fan-type Asynchronous Frequency-variable speed regulating motor of the invention, including shell, external stator component, internal rotor component, be described
The frequency converter of external stator assembly power supply and cooling speed adjusting gear, the external stator component are fixedly installed in the shell；It is described
Internal rotor component includes rotor, is uniformly distributed around rotor axis and multiple guide posts axially through the rotor and is connected to each
Guide shaft end is used for the output panel for exporting the power of rotor outward；Guide post described in wherein at least one is screw rod, the screw rod
With rotor by being threadedly engaged and rotor can be driven to move along axial reciprocating by its rotation, the cooling speed adjusting gear include from
Hull outside protrudes into the intracorporal fan shaft of shell and the flabellum for being fixed on the fan shaft, and the rotor will by planetary gear mechanism
Power is transferred to fan shaft；The planetary gear mechanism include the ring gear being formed on stator core, transmission be matched with fan
The sun gear of axis and the planetary gear on guide post that is rotatably assorted；Transmission is combined with governor gear, the fan shaft on the screw rod
It can axially move to engaging sun gear to drive screw turns with governor gear；
Further, the speed adjusting gear further includes spring, and the spring can be moved by elastic force driving fan axis along axial
It is dynamic to separate the sun gear with governor gear, and engage the sun gear and planetary gear；
It further, further include support plate；The output panel and support plate set up separately in the intracorporal top and bottom of shell；The branch
Support plate is by thrust bearing rotatable support in the shell；The guide post in a manner of axis rotation can be connected to output
Between disk and support plate；
Further, the shell lower end surface is formed with the bearing race for installing the thrust bearing, the flabellum position
In in the space that the bearing race and support plate surround；The shell lower end surface and support plate and flabellum corresponding position are equipped with gas
Flow through hole；
Further, the output panel is formed with the output shaft stretched out outside shell along axial direction.
The beneficial effects of the present invention are: fan-type Asynchronous Frequency-variable speed regulating motor of the invention, changes motor by frequency converter
The frequency of stator power realizes a certain range of speed regulation to change its synchronous rotational speed；Weak-magnetic speed-regulating can also be used simultaneously,
Rotor rotation can drive the guide post across it to revolve around rotor axis, and the upper end of each guide shaft is connected to output panel and passes through output
Disk exports power outward, in addition, planetary gear is rotatably arranged on guide shaft, therefore, guide shaft is by the row as planetary gear mechanism
Spider gear shaft uses, and rotor supports will be used as planet carrier, and the rotation of rotor passes after carrying out speedup by planetary gear mechanism
It is handed to sun gear and drives flabellum high-speed rotation, guarantee cooling effect；In addition, at least one guide post is screw rod, on rotor with should
The through-hole of screw rod cooperation is threaded hole, so that being able to carry out worm drive between screw rod and rotor, fan shaft is set as can be along axis
To sliding, when being adjusted the speed, can manpower driving fan axis slide into and engage and rotate with governor gear, fan shaft passes through
Gear pair drives screw rod rotation, and then moves rotor axially along a screw, and then changes electric machine iron core magnetic flux, finally realizes motor
Weak-magnetic speed-regulating, this mode of speed regulation can make motor realize stepless smooth speed regulation, this motor can utilize frequency control simultaneously
The speed regulation of motor is realized with two kinds of principles of weak-magnetic speed-regulating, speed adjustable range is larger, and reliability is higher, in addition, leading in the present invention
Column is used as the screw rod of screw-drive mechanism practical, and practical as the driving member that rotor dynamic output makes, and realization one is dual-purpose
Purpose, increase substantially the compactedness of motor entirety.
Detailed description of the invention
Further explanation of the technical solution of the present invention with reference to the accompanying drawings and examples:
Fig. 1 is overall schematic of the invention；
Fig. 2 is cross-sectional view of the invention.
Specific embodiment
Fig. 1 is overall schematic of the invention；Fig. 2 is cross-sectional view of the invention, as shown, the fan-type of the present embodiment
Asynchronous Frequency-variable speed regulating motor includes shell 5, external stator component 6,3 component of internal rotor, the frequency conversion powered for the external stator component 6
Device and cooling speed adjusting gear, the external stator component 6 are fixedly installed in the shell 5；3 component of internal rotor includes rotor
3, be uniformly distributed around 3 axis of rotor and multiple guide posts 4 axially through the rotor 3 and be connected to each guide shaft end for will
The output panel 2 that the power of rotor 3 exports outward；Guide post 4 described in wherein at least one is screw rod, and the screw rod passes through with rotor 3
It is threadedly engaged and rotor 3 can be driven to move along axial reciprocating by its rotation, the cooling speed adjusting gear includes from 5 outside of shell
The fan shaft 10 protruded into shell 5 and the flabellum 12 for being fixed on the fan shaft 10, the rotor 3 will by planetary gear mechanism
Power is transferred to fan shaft 10；The planetary gear mechanism include the ring gear being formed on stator core, transmission be matched with wind
The planetary gear 7 fanning the sun gear 13 of axis 10 and being rotatably assorted on guide post 4；Transmission is combined with governor gear 8, institute on the screw rod
Stating fan shaft 10 can axially move to engaging sun gear 13 to drive screw turns with governor gear 8；
In the present embodiment, the speed adjusting gear further includes spring 9, and the spring 9 can pass through elastic force driving fan axis 10
Being axially moveable separates the sun gear 13 with governor gear 8, and engages the sun gear 13 and planetary gear 7；As schemed
Show, 9 bullet of spring withstands on support plate and is formed between the positioning ring of 10 outer circle of fan shaft, in its natural state, is made by spring 9
Sun gear 13 and governor gear 8 are separated from each other, and when needing to adjust the speed, manpower, which pulls downward on fan shaft 10, makes it overcome spring 9 elastic
Power effect is intermeshed sun gear 13 and planetary gear 7, after the completion of speed regulation, unclamps fan shaft 10, sun gear 13 will be in elastic force
Effect is lower to be separated from each other with governor gear 8 and engages with planetary gear 7.
It further include support plate in the present embodiment；The output panel 2 and support plate set up the top and bottom in shell 5 separately；
The support plate is by thrust bearing rotatable support in the shell 5；The guide post 4 in a manner of axis rotation can connect
It is connected between output panel 2 and support plate.
In the present embodiment, 5 lower end surface of shell is formed with the bearing race for installing the thrust bearing, the fan
In the space that leaf 12 is located at the bearing race and support plate surrounds；5 lower end surface of shell and support plate are corresponding with flabellum 12
Position is equipped with air-flow via hole 11, and extraneous gas is flowed to inside rotor 3 by air-flow via hole 11, and then is cooled down to rotor 3,
Certainly, air stream outlet should be also arranged in 5 upper surface of shell, and air-flow via hole 11 may be provided with strainer, impurity is avoided to enter, by flabellum 12
It is arranged in the space of a relative closure (non-tight), can be wound to avoid the harness inside motor by flabellum 12, improved
The reliability of motor work.
In the present embodiment, the output panel 2 is formed with the output shaft 1 stretched out outside shell 5, the output shaft 1 along axial direction
Shaft part outside shell 5 is equipped with output gear.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (4)
- It 1. a kind of fan-type Asynchronous Frequency-variable speed regulating motor, including shell, external stator component, internal rotor component, is the external stator The frequency converter of assembly power supply and cooling speed adjusting gear, it is characterised in that: the external stator component is fixedly installed in the shell； The internal rotor component includes rotor, is uniformly distributed around rotor axis and axially through multiple guide posts of the rotor and connection The output panel for exporting the power of rotor outward is used in each guide shaft end；Guide post described in wherein at least one is screw rod, described Screw rod is with rotor by being threadedly engaged and can be moved by its rotation driving rotor along axial reciprocating, the cooling speed adjusting gear packet It includes from hull outside and protrudes into the intracorporal fan shaft of shell and the flabellum for being fixed on the fan shaft, the rotor passes through planetary gear machine Power is transferred to fan shaft by structure；The planetary gear mechanism include the ring gear being formed on stator core, transmission be matched with The sun gear of fan shaft and the planetary gear on guide post that is rotatably assorted；Transmission is combined with governor gear, the wind on the screw rod Fan axis can axially move to engaging sun gear to drive screw turns with governor gear；The speed adjusting gear further includes spring, and the spring can be axially moveable by elastic force driving fan axis makes the sun Wheel is separated with governor gear, and engages the sun gear and planetary gear；In its natural state, it is separated from each other sun gear and governor gear by spring, when needing to adjust the speed, manpower pulls downward on wind Fan axis makes it that the effect of spring power be overcome to be intermeshed sun gear and planetary gear, after the completion of speed regulation, unclamps fan shaft, the sun Wheel will be separated from each other in the presence of a tensile force with governor gear and engage with planetary gear.
- 2. fan-type Asynchronous Frequency-variable speed regulating motor according to claim 1, it is characterised in that: further include support plate；It is described Output panel and support plate set up separately in the intracorporal top and bottom of shell；The support plate is by thrust bearing rotatable support described In shell；The guide post in a manner of axis rotation can be connected between output panel and support plate.
- 3. fan-type Asynchronous Frequency-variable speed regulating motor according to claim 2, it is characterised in that: the shell lower end surface is formed There are the bearing race for installing the thrust bearing, the space that the flabellum is located at the bearing race and support plate surrounds It is interior；The shell lower end surface and support plate and flabellum corresponding position are equipped with air-flow via hole.
- 4. fan-type Asynchronous Frequency-variable speed regulating motor according to claim 3, it is characterised in that: the output panel is along axial one Body is formed with the output shaft stretched out outside shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588926.0A CN107394958B (en) | 2017-07-19 | 2017-07-19 | Fan-type Asynchronous Frequency-variable speed regulating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588926.0A CN107394958B (en) | 2017-07-19 | 2017-07-19 | Fan-type Asynchronous Frequency-variable speed regulating motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107394958A CN107394958A (en) | 2017-11-24 |
| CN107394958B true CN107394958B (en) | 2019-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588926.0A Expired - Fee Related CN107394958B (en) | 2017-07-19 | 2017-07-19 | Fan-type Asynchronous Frequency-variable speed regulating motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107394958B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979252A (en) * | 2017-12-20 | 2018-05-01 | 江贵生 | Asynchronous weak-magnetic speed-regulating motor |
| CN113315311B (en) * | 2021-05-25 | 2022-10-28 | 湖南珑宝电机有限公司 | Electric machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296332A (en) * | 1999-11-15 | 2001-05-23 | 马英成 | Method and device for making magnetic power machine |
| CN202206275U (en) * | 2011-08-18 | 2012-04-25 | 王华钦 | Improved idling motor |
-
2017
- 2017-07-19 CN CN201710588926.0A patent/CN107394958B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296332A (en) * | 1999-11-15 | 2001-05-23 | 马英成 | Method and device for making magnetic power machine |
| CN202206275U (en) * | 2011-08-18 | 2012-04-25 | 王华钦 | Improved idling motor |
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| Publication number | Publication date |
|---|---|
| CN107394958A (en) | 2017-11-24 |
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Granted publication date: 20190809 Termination date: 20210719 |