CN202804923U - Structure of electric grinding wheel spindle - Google Patents
Structure of electric grinding wheel spindle Download PDFInfo
- Publication number
- CN202804923U CN202804923U CN 201220310797 CN201220310797U CN202804923U CN 202804923 U CN202804923 U CN 202804923U CN 201220310797 CN201220310797 CN 201220310797 CN 201220310797 U CN201220310797 U CN 201220310797U CN 202804923 U CN202804923 U CN 202804923U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- rotor
- motor
- grinding wheel
- magnet brushless
- 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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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a structure of an electric grinding wheel spindle. According to the structure of the electric grinding wheel spindle, the spindle is driven by a permanent magnet brushless direct current motor, small in size, high in working efficiency and low in heat productivity. The spindle comprises a motor, a shell and a rotating shaft, wherein the motor is positioned inside the shell; the rotating shaft is connected with a rotor of the motor; and the front end of the rotating shaft is connected with a grinding wheel. The spindle is characterized in that the motor particularly is the permanent magnet brushless direct current motor; the permanent magnet brushless direct current motor comprises a stator and the rotor; the rotating shaft is connected with the rotor through a key structure; one end, close to the rotor, of the rotating shaft is firmly sleeved with a rotating transformer; a water pipe is arranged inside the rotating shaft and is connected with an outer water source pipe through a rotary joint; the middle section and the rear end of the rotating shaft are supported in an inner cavity of the shell through angular contact bearings; and the end part, close to the grinding wheel, of the rotating shaft is supported on the shell through a bidirectional angular contact thrust ball bearing.
Description
Technical field
The utility model relates to the main axle structure technical field of lathe, is specially a kind of emery wheel electricity main axle structure.
Background technology
Existing emery wheel electricity main shaft, it is brush motor and drives, and its volume is large, inefficiency, caloric value are large.
Summary of the invention
For the problems referred to above, the utility model provides a kind of emery wheel electricity main axle structure, and it adopts the permanent-magnet brushless DC electric machine drive shaft, and its volume is little, high efficiency, caloric value are little.
A kind of emery wheel electricity main axle structure, its technical scheme is such: it comprises motor, housing, rotating shaft, described motor is positioned at described enclosure interior, described rotating shaft connects the rotor of described motor, the front end of described rotating shaft connects emery wheel, it is characterized in that: described motor is specially permanent-magnet brushless DC electric machine, described permanent-magnet brushless DC electric machine comprises stator, rotor, described rotating shaft, rotor connects by bond structure, one end adapter sleeve of the close described rotor of described rotating shaft is equipped with rotary transformer, the inside of described rotating shaft is connected with water pipe, described water pipe connects outside water source tube by swivel joint, the stage casing of described rotating shaft, the rear end is supported on by angular contact bearing in the internal cavities of described housing, and the end of the close described emery wheel of described rotating shaft is supported on described housing by the bidirectional angular contact thrust ball bearing.
After adopting structure of the present utility model, because motor adopts permanent-magnet brushless DC electric machine, the rotor of permanent-magnet brushless DC electric machine is by the bond structure connection rotating shaft, it is so that whole emery wheel electricity main shaft little, high efficiency of volume when working under equal-wattage, caloric value are little, in addition because an end adapter sleeve of the close described rotor of rotating shaft is equipped with rotary transformer, so that its rotating speed energy rapid feedback is accomplished accurate control.
Description of drawings
Fig. 1 is front view structural representation of the present utility model.
The specific embodiment
See Fig. 1, it comprises motor, housing 2, rotating shaft 3, motor is positioned at housing 2 inside, rotating shaft 3 connects the rotor 4 of motor 1, the front end of rotating shaft 3 connects emery wheel 5, motor is specially permanent-magnet brushless DC electric machine, permanent-magnet brushless DC electric machine comprises stator 6, rotor 4, rotating shaft 3, rotor 4 connects by bond structure 7, one end adapter sleeve of the close rotor 4 of rotating shaft 3 is equipped with rotary transformer 8, the inside of rotating shaft 3 is connected with water pipe 9, water pipe 9 connects outside water source tube 11 by swivel joint 10, the stage casing of rotating shaft 3, hold by angular contact axle 12 in the internal cavities that is supported on housing 2 rear end, and the end of the close emery wheel 5 of rotating shaft 3 is supported on housing 2 by bidirectional angular contact thrust ball bearing 1.
Claims (1)
1. emery wheel electricity main axle structure, it comprises motor, housing, rotating shaft, described motor is positioned at described enclosure interior, described rotating shaft connects the rotor of described motor, the front end of described rotating shaft connects emery wheel, it is characterized in that: described motor is specially permanent-magnet brushless DC electric machine, described permanent-magnet brushless DC electric machine comprises stator, rotor, described rotating shaft, rotor connects by bond structure, one end adapter sleeve of the close described rotor of described rotating shaft is equipped with rotary transformer, the inside of described rotating shaft is connected with water pipe, described water pipe connects outside water source tube by swivel joint, the stage casing of described rotating shaft, the rear end is supported on by angular contact bearing in the internal cavities of described housing, and the end of the close described emery wheel of described rotating shaft is supported on described housing by the bidirectional angular contact thrust ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310797 CN202804923U (en) | 2012-06-29 | 2012-06-29 | Structure of electric grinding wheel spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310797 CN202804923U (en) | 2012-06-29 | 2012-06-29 | Structure of electric grinding wheel spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804923U true CN202804923U (en) | 2013-03-20 |
Family
ID=47863866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310797 Expired - Fee Related CN202804923U (en) | 2012-06-29 | 2012-06-29 | Structure of electric grinding wheel spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202804923U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729146A (en) * | 2012-06-29 | 2012-10-17 | 无锡机床股份有限公司 | Structure of grinding wheel electric spindle |
| CN103894920A (en) * | 2014-03-26 | 2014-07-02 | 广东工业大学 | Lower plate driving structure of plane grinder |
| CN103991029A (en) * | 2014-05-30 | 2014-08-20 | 广州市昊志机电股份有限公司 | Grinding electric main shaft |
| CN106475893A (en) * | 2016-11-09 | 2017-03-08 | 安徽千禧精密轴承制造有限公司 | A kind of bearing inner race raceway groove lapping device |
-
2012
- 2012-06-29 CN CN 201220310797 patent/CN202804923U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729146A (en) * | 2012-06-29 | 2012-10-17 | 无锡机床股份有限公司 | Structure of grinding wheel electric spindle |
| CN103894920A (en) * | 2014-03-26 | 2014-07-02 | 广东工业大学 | Lower plate driving structure of plane grinder |
| CN103991029A (en) * | 2014-05-30 | 2014-08-20 | 广州市昊志机电股份有限公司 | Grinding electric main shaft |
| CN106475893A (en) * | 2016-11-09 | 2017-03-08 | 安徽千禧精密轴承制造有限公司 | A kind of bearing inner race raceway groove lapping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |