CN207339538U - A kind of motor shaft - Google Patents
A kind of motor shaft Download PDFInfo
- Publication number
- CN207339538U CN207339538U CN201721425153.6U CN201721425153U CN207339538U CN 207339538 U CN207339538 U CN 207339538U CN 201721425153 U CN201721425153 U CN 201721425153U CN 207339538 U CN207339538 U CN 207339538U
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- CN
- China
- Prior art keywords
- main shaft
- shaft
- exhaust duct
- connecting pin
- air passage
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- 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.)
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of motor shaft, including main shaft, the both ends of the main shaft are respectively installation end and fan connecting pin, and keyway is respectively arranged with installation end and the fan connecting pin, its main feature is that：The shaft core position of the main shaft is provided with exhaust duct hole, the right output port in the exhaust duct hole is exposed to fan connecting pin, the inlet air passage connected with the left port in exhaust duct hole is provided with close to the main shaft of installation end, the blower unit of the passway of corresponding inlet air passage is provided with the main shaft.The utility model have the characteristics that radiating rate it is fast, beneficial to the dosage for reducing electric machine iron core silicon steel sheet and machine winding electromagnetic wire.
Description
Technical field
The utility model belongs to motor shaft technical field, more particularly, to a kind of motor shaft.
Background technology
Existing machine shaft result of ventilating heat dissipation is poor, and motor works long hours down so that motor internal and shaft produce height
Temperature, can make it produce failure, reduce the working performance of motor, shorten the service life of motor.
The content of the invention
The purpose of this utility model is in view of the deficiency of the prior art, there is provided a kind of motor shaft, it
Have the characteristics that radiating rate it is fast, beneficial to the dosage for reducing electric machine iron core silicon steel sheet and machine winding electromagnetic wire.
To achieve these goals, technical solution is used by the utility model：A kind of motor shaft, including master
Axis body, the both ends of the main shaft are respectively installation end and fan connecting pin, are set respectively on installation end and the fan connecting pin
Keyway is equipped with, the shaft core position of the main shaft is provided with exhaust duct hole, and the right output port in the exhaust duct hole is exposed to wind
Fan connecting pin, close to the main shaft of installation end on be provided with the inlet air passage connected with the left port in exhaust duct hole, the master
The blower unit of the passway of corresponding inlet air passage is provided with axis body.
The blower unit includes the lantern ring being sheathed on main shaft, and corresponding inlet air passage is provided with the lantern ring
The cover that goes for a drive of passway.
The main shaft surface that rotor is installed on the main shaft is provided with every magnetic lining, and described every magnetic lining is non-magnetic
Material is made.
With the above structure, the utility model is compared to the prior art advantageously：The utility model is in master
Exhaust duct hole and inlet air passage are set in axis body, and are provided with blower unit, when main shaft rotates, passes through blower unit
Inlet air passage and exhaust duct hole can be pumped air into, is discharged from the right output port in exhaust duct hole, makes inlet air passage and air draft
Flowing wind is formed in pipe hole, so as to take away the heat of main shaft, and indirectly takes away the heat of motor internal, it is electric beneficial to reducing
Machine operating temperature；Every the setting of magnetic lining, the magnetic flux that electric machine rotor iron core yoke portion is leaked on main shaft is set to greatly reduce,
Caused larger eddy-current loss and shaft current can also greatly reduce on main shaft, and so in design of electrical motor, designer can be with
Electric machine rotor iron core yoke portion magnetic flux density is designed to more higher, advantageously reduces electric machine iron core silicon steel sheet and machine winding electromagnetism
The dosage of line.
Brief description of the drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the left view of the utility model（Broken section）.
Embodiment
As described below is only the preferred embodiment of the utility model, does not therefore limit the protection model of the utility model
Enclose, the utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment, as shown in Fig. 1 to Fig. 3：A kind of motor shaft, including main shaft 1, the both ends of the main shaft 1
Respectively installation end 2 and fan connecting pin 3, are respectively arranged with keyway 4, the main shaft on the installation end 2 and fan connecting pin 3
The shaft core position of body 1 is provided with exhaust duct hole 5, and the right output port in the exhaust duct hole 5 is exposed to fan connecting pin 3, close to
The inlet air passage 6 connected with the left port in exhaust duct hole 5 is provided with the main shaft 1 of installation end 2, is set on the main shaft 1
It is equipped with the blower unit 7 of the passway of corresponding inlet air passage 6.
Preferably, the blower unit 7 includes being sheathed on the lantern ring 8 on main shaft 1, is provided with the lantern ring 8 pair
Answer the cover 9 that goes for a drive of the passway of inlet air passage 6.
1 surface of main shaft that rotor is installed on the main shaft 1 is provided with every magnetic lining（Attached drawing is not drawn into）, it is described every
Magnetic lining is made of non-magnet material.
The utility model sets exhaust duct hole 5 and inlet air passage 6 in main shaft 1, and is provided with blower unit 7,
When main shaft 1 rotates, inlet air passage 6 and exhaust duct hole 5 can be pumped air into by blower unit 7, from exhaust duct
The right output port discharge in hole 5, makes to form flowing wind in inlet air passage 6 and exhaust duct hole 5, so that the heat of main shaft 1 is taken away, and
The heat of motor internal is indirectly taken away, beneficial to reduction motor operating temperature
When manufacturing motor, typically rotor core is directly sleeved on machine shaft.Rotor core in motor work
The magnetic field in yoke portion can enter machine shaft, so as to can cause larger eddy-current loss and shaft current inside machine shaft, so
The loss of electric machine can not only be increased, and shaft current can produce infringement to bearing.Every the setting of magnetic lining, make electric machine rotor iron core yoke
The magnetic flux that portion is leaked on main shaft 1 can greatly reduce, and caused larger eddy-current loss and shaft current also can on main shaft 1
Greatly reduce, so in design of electrical motor, electric machine rotor iron core yoke portion magnetic flux density can be designed to more higher by designer, have
Beneficial to the dosage for reducing electric machine iron core silicon steel sheet and machine winding electromagnetic wire.
Claims (3)
1. a kind of motor shaft, including main shaft（1）, the main shaft（1）Both ends be respectively installation end（2）And fan
Connecting pin（3）, the installation end（2）With fan connecting pin（3）On be respectively arranged with keyway（4）, it is characterised in that：The main shaft
Body（1）Shaft core position be provided with exhaust duct hole（5）, the exhaust duct hole（5）Right output port be exposed to fan connecting pin
（3）, close to installation end（2）Main shaft（1）On be provided with and exhaust duct hole（5）Left port connection inlet air passage（6）,
The main shaft（1）On be provided with corresponding inlet air passage（6）Passway blower unit（7）.
A kind of 2. motor shaft according to claim 1, it is characterised in that：The blower unit（7）Including set
Arranged on main shaft（1）On the lantern ring（8）, the lantern ring（8）On be provided with corresponding inlet air passage（6）Passway the cover that goes for a drive
（9）.
A kind of 3. motor shaft according to claim 1, it is characterised in that：The main shaft（1）Upper installation rotor
Main shaft（1）Surface is provided with every magnetic lining, described to be made every magnetic lining of non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425153.6U CN207339538U (en) | 2017-10-31 | 2017-10-31 | A kind of motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425153.6U CN207339538U (en) | 2017-10-31 | 2017-10-31 | A kind of motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339538U true CN207339538U (en) | 2018-05-08 |
Family
ID=62363362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721425153.6U Active CN207339538U (en) | 2017-10-31 | 2017-10-31 | A kind of motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207339538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659044A (en) * | 2017-10-31 | 2018-02-02 | 方大电机股份有限公司 | A kind of motor rotating shaft |
-
2017
- 2017-10-31 CN CN201721425153.6U patent/CN207339538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659044A (en) * | 2017-10-31 | 2018-02-02 | 方大电机股份有限公司 | A kind of motor rotating shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rotating shaft used for motor Effective date of registration: 20181109 Granted publication date: 20180508 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd Taizhou Wenling branch Pledgor: Fangda motor Limited by Share Ltd Registration number: 2018330000377 |