CN203674866U - Motorized main shaft used for gear monitoring - Google Patents
Motorized main shaft used for gear monitoring Download PDFInfo
- Publication number
- CN203674866U CN203674866U CN201320820098.6U CN201320820098U CN203674866U CN 203674866 U CN203674866 U CN 203674866U CN 201320820098 U CN201320820098 U CN 201320820098U CN 203674866 U CN203674866 U CN 203674866U
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- CN
- China
- Prior art keywords
- main shaft
- stator
- bearing
- casing
- rotor
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of motorized main shafts and specifically relates to a motorized main shaft used for gear monitoring. The motorized main shaft includes a shell, a stator, a rotor, a front cover and a rear cover. The shell is a round cylinder. The wall of the cylinder is provided with a water groove and an airtight channel. The stator is fixed on the inner side wall of the shell. The rotor is sheathed in the stator. The front end and the rear end of the shell are provided with a front cover and a rear cover respectively. The rotor is installed in the shell through a front bearing and a rear bearing. The front bearing and the rear bearing are angular contact bearings. A seal ring is arranged on the main shaft at the front end of the front bearing. A seal nut is arranged on the main shaft at the rear end of the rear bearing. The motorized main shaft used for gear monitoring is simple in structure and convenient to realize. A motor and a main shaft are integrated together, so that a belt is saved and the motorized main shaft is driven by the motor directly. Vibration due to unbalance is reduced through dynamic balance of the rotor. Most importantly, the front bearing and the rear bearing are the angular contact bearings, so that a problem of main shaft vibration is solved. Static end face run-out of the main shaft is smaller than 0.002mm, bore-hole run-out is smaller than 0.003mm and 300mm checking rod run-out is smaller than 0.008mm. When the main shaft is operating at a speed of 3000rpm, noise of a position 300mm away from a shaft end is no greater than 65dBA.
Description
Technical field
The utility model belongs to electric main shaft field, is specifically related to a kind of gear and monitors electric main shaft.
Background technology
Main shaft is the critical component of Digit Control Machine Tool, is main mainly with Purely mechanical drive mechanism, and external motor is passed to power the main shaft of lathe indirectly by the kind of drive such as belt, gear, thereby realizes the spinfunction of main shaft.The electricity main shaft new technology that to be recent years occur in Digit Control Machine Tool field combines machine tool chief axis and spindle motor together.High Speed NC Machine Tools main transmission has been cancelled belt wheel transmission and gear drive.Machine tool chief axis is directly driven by built-in motor, thereby is zero the contraction in length of Machine Tool Main Drive chain, has realized " zero transmission " of lathe.The electric main shaft of existing monitoring is generally belt transmission, and because gear monitoring has very high requirement to the noise of main shaft and vibration, belt transmission noise and the vibration of main shaft requires to be difficult to reach.
Utility model content
The utility model exists gear monitoring to have very high requirement to the noise of main shaft and vibration for prior art, and belt transmission noise and the vibration of main shaft requires very inaccessible problem, proposes a kind of gear testing electricity main shaft.
The technical solution of the utility model is: a kind of gear is monitored electric main shaft, comprise casing, stator, rotor, protecgulum and bonnet, described casing is a circular cylinder body, in the wall of cylindrical shell, offer the gentle seal channel of tank, stator is fixed on the madial wall of shell, rotor is socketed in stator, the front-end and back-end of casing are separately installed with protecgulum and bonnet, described rotor is arranged in casing by fore bearing and rear bearing, fore bearing and rear bearing are angular contact bearing, on the main shaft of fore bearing front end, be provided with sealing ring, on the main shaft of rear bearing rear end, be provided with sealing nut.
Described gear is monitored electric main shaft, in the sidewall of casing fixed stator, arranges and bosh, between bosh and stator, is provided with coolant jacket.
Described gear is monitored electric main shaft, is provided with attaching plug and cooling water nozzle on described bonnet.
Described gear is monitored electric main shaft, and foremost, the outer setting of casing has dust cap to described rotor.
Described gear is monitored electric main shaft, on the sidewall of casing, is provided with locknut, and locknut is fixed on stator on the madial wall of casing.
The beneficial effects of the utility model are: 1, the utility model is simple in structure, enforcement is convenient, motor and main shaft are integrated, save belt, for motor direct-drive electricity main shaft, rotor is through dynamic balancing, reduced the vibrations that cause because of imbalance, most importantly fore bearing and rear bearing are angular contact bearing, have solved the problem of main shaft vibrations.
3, the static end face run-out of main shaft of the present utility model is less than 0.002mm, and taper hole is beated and is less than 0.003mm, and 300mm tests rod and beats and be less than 0.008mm, when main shaft is in the time that 3000rpm moves, is not more than 65dBA apart from axle head 300mm place noise.
Accompanying drawing explanation
Fig. 1 is that structural representation is partly cutd open in side of the present utility model;
In figure, 1 is dust cap, and 2 is nut, and 3 is protecgulum, 4 is outer seal ring, and 5 is inner seal ring, and 6 is fore bearing, and 7 is main shaft, 8 is casing, and 9 is coolant jacket, and 10 is rotor, 11 is stator, and 12 is inner sleeve, and 13 is rear bearing, 14 is bonnet, and 15 is sealing nut, and 16 is back nut, 17 is cooling water nozzle, and 18 is supply socket, and 19 is holding screw.
Embodiment
Embodiment 1: in conjunction with Fig. 1: a kind of gear is monitored electric main shaft, comprise casing, stator, rotor, protecgulum and bonnet, described casing is a circular cylinder body, in the wall of cylindrical shell, offer the gentle seal channel of tank, stator is fixed on the madial wall of shell, rotor is socketed in stator, the front-end and back-end of casing are separately installed with protecgulum and bonnet, described rotor is arranged in casing by fore bearing and rear bearing, fore bearing and rear bearing are angular contact bearing, on the main shaft of fore bearing front end, be provided with sealing ring, on the main shaft of rear bearing rear end, be provided with sealing nut.In the sidewall of casing fixed stator, arrange and bosh, between bosh and stator, be provided with coolant jacket, bosh is communicated with the cooling water nozzle being arranged on bonnet, is also provided with attaching plug on bonnet, foremost, the outer setting of casing has dust cap to rotor.On the sidewall of casing, be provided with locknut, locknut is fixed on stator on the madial wall of casing.
Claims (5)
1.
?a kind of gear is monitored electric main shaft, comprise casing, stator, rotor, protecgulum and bonnet, described casing is a circular cylinder body, in the wall of cylindrical shell, offer the gentle seal channel of tank, stator is fixed on the madial wall of shell, rotor is socketed in stator, the front-end and back-end of casing are separately installed with protecgulum and bonnet, it is characterized in that: described rotor is arranged in casing by fore bearing and rear bearing, fore bearing and rear bearing are angular contact bearing, on the main shaft of fore bearing front end, be provided with sealing ring, on the main shaft of rear bearing rear end, be provided with sealing nut.
2.
?gear according to claim 1 is monitored electric main shaft, it is characterized in that: in the sidewall of casing fixed stator, arrange and bosh, between bosh and stator, be provided with coolant jacket.
3.
?gear according to claim 1 is monitored electric main shaft, it is characterized in that: on described bonnet, be provided with attaching plug and cooling water nozzle.
4.
?gear according to claim 1 is monitored electric main shaft, it is characterized in that: foremost, the outer setting of casing has dust cap to described rotor.
5.
?gear according to claim 1 is monitored electric main shaft, it is characterized in that: on the sidewall of casing, be provided with locknut, locknut is fixed on stator on the madial wall of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320820098.6U CN203674866U (en) | 2013-12-14 | 2013-12-14 | Motorized main shaft used for gear monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320820098.6U CN203674866U (en) | 2013-12-14 | 2013-12-14 | Motorized main shaft used for gear monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674866U true CN203674866U (en) | 2014-06-25 |
Family
ID=50971117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320820098.6U Expired - Fee Related CN203674866U (en) | 2013-12-14 | 2013-12-14 | Motorized main shaft used for gear monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466340A (en) * | 2015-03-30 | 2017-12-12 | 利莱森玛电机公司 | Attachment structure between motor shaft and reduction gearing |
-
2013
- 2013-12-14 CN CN201320820098.6U patent/CN203674866U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466340A (en) * | 2015-03-30 | 2017-12-12 | 利莱森玛电机公司 | Attachment structure between motor shaft and reduction gearing |
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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: 20140625 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |