CN206564527U - The phase asynchronous traction electric machine of frequency control - Google Patents
The phase asynchronous traction electric machine of frequency control Download PDFInfo
- Publication number
- CN206564527U CN206564527U CN201720289890.1U CN201720289890U CN206564527U CN 206564527 U CN206564527 U CN 206564527U CN 201720289890 U CN201720289890 U CN 201720289890U CN 206564527 U CN206564527 U CN 206564527U
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- China
- Prior art keywords
- encoder
- rear end
- rotating shaft
- motor
- electric machine
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Abstract
The phase asynchronous traction electric machine of frequency control; including rotating shaft, stator assembly and rotor assembly; it is characterized in that being equipped with encoder in the rear end of rotating shaft; described encoder is dismountable coaxially connected with rotating shaft; in the frequency converter of the line of codes access motor of encoder; install protective cover additional in the periphery of encoder, described protective cover is removably mounted in the rear end of motor, motor rear end is closed.Frequency control of the present utility model is phase asynchronous to lead step motor; encoder is arranged to the rear end of rotating shaft, and covered encoder with protective cover, it is ensured that is not polluted during the use of encoder by ambient impurities; motor rear end is closed using protective cover simultaneously, simplifies electric machine structure；Encoder is that dismounting is connected with motor rear end with rotating shaft rear end and protective cover, and the mounting structure of encoder is simpler, can effectively improve encoder dismounting and the efficiency changed, that is, be easy to the assembling of encoder and motor, facilitate the maintenance and replacing of encoder again.
Description
Technical field
The utility model is related to a kind of traction electric machine, more particularly to a kind of phase asynchronous traction electric machine of frequency control.
Background technology
Frequency control threephase asynchronous machine is the new motor that current countries in the world are used, can arbitrarily speed governing reach
Main frame need to rotation speed requirements.Its speed governing is convenient, and protective value is good, is the good product of energy-conservation.But for normal asynchronous
For, the performance parameter mainly considered during design is overload capacity, starting performance, efficiency and power factor.In order that in motor
Frequency converter supports the rotating speed of control motor in real time, and rotating speed can be adjusted in time according to demand, typically using with encoder different
Walk in motor, the feedback control module that motor speed is fed back to frequency converter internal processes by encoder, if frequency converter is given
Fixed output differs by more than prescribed limit value with the real-time rotating speed of motor, and frequency converter can report failure automatically, stall motor, wait frequency conversion
Motor could normally be run after device resets.
But in frequency converting speed regulating three-phase asynchronous electromotor, encoder is according to the model of motor, rated power and used
Demand is assembled into motor, threephase asynchronous machine body does not carry encoder, code machine by way of processing customization
Be installed on inside motor body on rotor, rotated with motor.In existing frequency control threephase asynchronous machine,
The mounting structure of encoder is complex, influences the packaging efficiency of motor, and the also dismounting and replacing to encoder brings certain difficulty
Degree.
Utility model content
The phase asynchronous traction electric machine of frequency control that the utility model is provided, the mounting structure of encoder is simple, is easy to compile
The dismounting and replacing of code device, can effectively improve the packaging efficiency of encoder and motor.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：The phase asynchronous traction electric machine of frequency control, bag
Include rotating shaft, stator assembly and rotor assembly, it is characterised in that encoder, described encoder and rotating shaft are housed in the rear end of rotating shaft
To be dismountable coaxially connected, in the frequency converter of the line of codes access motor of encoder, protective cover is installed additional in the periphery of encoder,
Described protective cover is removably mounted in the rear end of motor, and motor rear end is closed.
It is preferred that, described encoder is mounted in the rear end of rotating shaft, described encoder installation axle by encoder installation axle
It is coaxial docking with rotating shaft rear end, described encoder is sleeved in encoder installation axle.
It is preferred that, described encoder installation axle is constituted by connecting bottom and construction section, and the diameter of connection bottom is more than peace
The diameter of section is filled, the bolt assembly that connection bottom is distributed by circumferentially uniform intervals is fastened on the rear end face of rotating shaft, encoded
Device is fixed on construction section side face by bolt assembly.
It is preferred that, the axial notch corresponding with connection bottom is processed on the rear end face of described rotating shaft, it is described
Connection bottom be placed in described axial notch with the groove bottom of axial notch against.
It is preferred that, the rear bearing end that described protective cover is mounted in rotating shaft rear end by bolt assembly is covered.
The phase asynchronous rear end led step motor, encoder is arranged to rotating shaft of frequency control of the present utility model, and with protect
Shield covers encoder, it is ensured that do not polluted during the use of encoder by ambient impurities, while using protective cover by electricity
Machine back-end closure, simplifies electric machine structure；Encoder is that dismounting is connected with motor rear end with rotating shaft rear end and protective cover, encoder
Mounting structure it is simpler, can effectively improve encoder dismounting with change efficiency, that is, be easy to the assembling of encoder and motor, again
Facilitate the maintenance and replacing of encoder.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged diagram at A in Fig. 1.
Embodiment
The utility model will be further described by accompanying drawing 1 ~ 2 and embodiment below.
As illustrated, the phase asynchronous traction electric machine of frequency control, including rotating shaft 1, stator module 2 and rotor assembly 3, it is special
Levy and be encoder 4 is housed in the rear end of rotating shaft 1, described encoder 4 and rotating shaft 1 is dismountable coaxially connected, encoder 4
Line of codes access motor frequency converter in, install protective cover 5 additional in the periphery of encoder 4, described protective cover 5 is removably filled
In the rear end of motor, motor rear end is closed.
Described encoder 4 is mounted in the rear end of rotating shaft 1 by encoder installation axle 6, and described encoder installation axle 6 is with turning
The rear end of axle 1 is coaxial docking, and described encoder 4 is sleeved in encoder installation axle 6.Described encoder installation axle 6 is by connecting
Bottom 61 and construction section 62 are constituted, and the diameter of connection bottom 61 is more than the diameter of construction section 62, and connection bottom 61 is by circumferentially
The bolt assembly of uniform intervals distribution is fastened on the rear end face of rotating shaft 1, and encoder 4 is fixed on construction section 62 by bolt assembly
On side face.
From figure 1 it appears that encoder 4 is mounted in the rear end of rotating shaft 1, and covering protective cover, protective cover on encoder 4
For preventing the impurity such as dust from being polluted to encoder 4, and motor rear end is sealed.During installation, first by encoder installation axle 6
Installed in the rear end of rotating shaft 1, then encoder 4 is arranged in encoder installation axle 6 again, the peace of protective cover 4 is finally carried out again
Dress.Wherein connection and protective cover of the encoder installation axle with the connection of the rear end of rotating shaft 1, encoder 4 and encoder installation axle 6
Installation completed by bolt assembly, be easy to the installation and dismounting of encoder 4.
Wherein, in order to prevent that encoder installation axle 6 is relatively moved with rotating shaft 1 in motor operation course, described
Rotating shaft 1 rear end face on process with the corresponding axial notch 11 in connection bottom 61, described connection bottom 61 is placed in institute
In the axial notch 11 stated with the groove bottom of axial notch 11 against, encoder installation axle 6 is positioned with axial notch 11,
It is caught in equivalent to by the bottom of encoder installation axle 6 in axial notch 11, it is ensured that encoder installation axle 6 is not because of the pine of bolt assembly
Move and be moved relative to rotating shaft 1, rotating shaft 1 is remained coaxially connected with encoder installation axle 6.In order to reduce encoder
Vibration between installation axle 6 and rotating shaft 1, can also add rubber blanket between encoder installation axle 6 and axial notch 11.
Wherein, described protective cover 5 is mounted in by bolt assembly on the rear bearing (ball) cover 7 of the rear end of rotating shaft 1.Protective cover 5
On rear bearing (ball) cover 7, i.e., encoder is protected, also by the back-end closure of motor, simplify electric machine structure, make electricity
Machine is closed without being set again using other shells to motor rear end.
The phase asynchronous rear end led step motor, encoder 4 is arranged to rotating shaft 1 of above-described frequency control, and with protect
Shield 5 covers encoder 4, it is ensured that do not polluted during the use of encoder 4 by ambient impurities, while utilizing protective cover 5
Motor rear end is closed, simplifies electric machine structure；Encoder installation axle 6 and the rear end of rotating shaft 1, encoder 4 and encoder installation axle 6 and
Protective cover 5 is to be detachably connected with rear bearing (ball) cover 7, and the mounting structure of encoder is simpler, can effectively improve encoder and tear open
Dress and the efficiency changed, that is, be easy to the assembling of encoder and motor, facilitate the maintenance and replacing of encoder again.
Completely description is carried out to the technical scheme of the utility model embodiment, it is necessary to which explanation is to be retouched above in association with accompanying drawing
The embodiment stated is only a part of embodiment of the utility model, is made based on the embodiment in the utility model, this area is common
The every other embodiment that technical staff is obtained on the premise of creative work is not made, belongs to the utility model guarantor
The scope of shield.
Claims (5)
1. the phase asynchronous traction electric machine of frequency control, including rotating shaft（1）, stator module（2）And rotor assembly（3）, its feature exists
In in rotating shaft（1）Rear end be equipped with encoder（4）, described encoder（4）With rotating shaft（1）For dismountable coaxially connected, volume
Code device（4）Line of codes access motor frequency converter in, in encoder（4）Periphery install protective cover additional（5）, described protective cover
（5）Dismountable rear end for being mounted in motor, motor rear end is closed.
2. the phase asynchronous traction electric machine of frequency control according to claim 1, it is characterised in that described encoder（4）It is logical
Cross encoder installation axle（6）Mounted in rotating shaft（1）Rear end, described encoder installation axle（6）With rotating shaft（1）Rear end is coaxially right
Connect, described encoder（4）It is sleeved on encoder installation axle（6）On.
3. the phase asynchronous traction electric machine of frequency control according to claim 2, it is characterised in that described encoder is installed
Axle（6）By connecting bottom（61）And construction section（62）Composition, connects bottom（61）Diameter be more than construction section（62）Diameter, even
Connect bottom（61）The bolt assembly being distributed by circumferentially uniform intervals is fastened on rotating shaft（1）Rear end face on, encoder（4）It is logical
Cross bolt assembly and be fixed on construction section（62）On side face.
4. the phase asynchronous traction electric machine of frequency control according to claim 3, it is characterised in that in described rotating shaft（1）'s
Processed on rear end face with being connected bottom（61）Corresponding axial notch（11）, described connection bottom（61）Described in being placed in
Axial notch（11）In with axial notch（11）Groove bottom against.
5. the phase asynchronous traction electric machine of frequency control according to any one of Claims 1-4, it is characterised in that described guarantor
Shield（5）Rotating shaft is mounted in by bolt assembly（1）The rear bearing (ball) cover of rear end（7）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289890.1U CN206564527U (en) | 2017-03-23 | 2017-03-23 | The phase asynchronous traction electric machine of frequency control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289890.1U CN206564527U (en) | 2017-03-23 | 2017-03-23 | The phase asynchronous traction electric machine of frequency control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564527U true CN206564527U (en) | 2017-10-17 |
Family
ID=60032870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720289890.1U Expired - Fee Related CN206564527U (en) | 2017-03-23 | 2017-03-23 | The phase asynchronous traction electric machine of frequency control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564527U (en) |
-
2017
- 2017-03-23 CN CN201720289890.1U patent/CN206564527U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 |