CN202622557U - Novel high-speed electric spindle of numerical control grinding machine - Google Patents
Novel high-speed electric spindle of numerical control grinding machine Download PDFInfo
- Publication number
- CN202622557U CN202622557U CN 201220209330 CN201220209330U CN202622557U CN 202622557 U CN202622557 U CN 202622557U CN 201220209330 CN201220209330 CN 201220209330 CN 201220209330 U CN201220209330 U CN 201220209330U CN 202622557 U CN202622557 U CN 202622557U
- Authority
- CN
- China
- Prior art keywords
- casing
- gland
- main shaft
- end surface
- stator
- 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 - Lifetime
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Abstract
The utility model discloses a novel high-speed electric spindle of a numerical control grinding machine. A front gland and a front nut are fixedly connected with each other through a bolt, a small gap is reserved between the front gland and the end of a spindle body, an end surface groove which is opened on the front end surface of the front gland and an end surface groove which is opened on the front nut form one labyrinth seal, a water leakage port which is communicated with the labyrinth seal is opened on the bottom wall of a front casing, an end surface groove which is opened on the rear end surface of the front gland and a end surface groove which is opened on a front spacing ring form the other labyrinth seal, a front chamber water cavity is arranged between the front casing and a front bearing chamber, a stator bush is sleeved between a casing and a stator, a casing internal water cavity is arranged between the stator bush and the casing, and a seal ring I and a seal ring II are sleeved between the front casing and the front bearing chamber. The novel high-speed electric spindle of the numerical control grinding machine is simple in processing, long in service life, high in accuracy, low in cost and good in sealing, cooling and dismounting.
Description
Technical field
The utility model relates to a kind of electric main shaft.
Background technology
The existing market grinding electricity main shaft life-span is short, and precision is not high, and bearing is prone to heating and causes the rigidity forfeiture, perhaps stops up because of the water route to cause main shaft to be scrapped, and has increased production and use cost greatly.
Summary of the invention
For solving the above-mentioned technical problem that existing electric main shaft exists, the utility model provides novel numerical control grinding machine high-speed electric main shaft, and its technical scheme of taking is:
Comprise main shaft; Be enclosed within the housing and the stator at main shaft middle part respectively, and be enclosed within main shaft anterior front shroud, preceding gland, preceding spacer ring, front casing, fore bearing chamber and preceding nut respectively, preceding gland is connected through bolt with preceding nut; Leave little gap between preceding gland and the main shaft end; The end face groove of opening on preceding gland front end face forms labyrinth seal with the end face groove of opening on preceding nut, has the scupper that is communicated with this labyrinth seal on the diapire of front casing, and the end face groove of opening on preceding gland rear end face forms another road labyrinth seal with the end face groove of opening on preceding spacer ring; Be provided with the cup water cavity between front casing and the fore bearing chamber; Socket stator liner between housing and the stator is provided with water cavity in the housing between stator liner and the housing, be with sealing ring I and sealing ring II between front casing and the fore bearing chamber.
The utility model adopts two labyrinth sealing bearings, has improved sealing effectiveness greatly, thereby has prolonged main shaft service life; Two water cavity coolings are adopted in the main shaft cooling; In time cooling bearing and stator keep the main shaft rigidity constant, with the fineness that improves the grinding part and bearing service life; The main shaft cooling water cavity is selected movable water cavity, can solve that common the obstruction because of the water route causes that main shaft is scrapped, the problem of cost up on the market.Therefore simple, the long service life of the utility model processing, precision is high, cost is low, has closure, cooling property and dismoutability preferably.
Description of drawings
Fig. 1 is the structural representation of the utility model first half.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail.
As shown in Figure 1, front shroud 1 is connected fastening with preceding nut 13 usefulness bolts, and front shroud 1 adopts little matched in clearance with main shaft 12 simultaneously, and the most of water that the cooling workpiece is splashed to front-end of spindle throws away.The end face groove of end face groove on preceding nut 13 on preceding gland 2 front end faces forms labyrinth seal; Thereafter the upper surface groove of end face and the end face groove on the preceding spacer ring 3 form another road labyrinth seal; Few part water retaining that the two labyrinth seals that constituted will get into flows out along the scupper on the diapire of front casing 5 14 in labyrinth, first road then.The preceding spacer ring 3 that is provided with left hand thread is made little matched in clearance with preceding gland 2, and the low amounts of water of gland 2 before infiltrating is discharged.
Front casing 5 combines to form cup water cavity 6 with fore bearing chamber 7; The water of this water cavity mainly cools off bearing; Stator liner 8 forms water cavity 11 in the housing with housing 9; The water of this water cavity mainly cools off stator line bag, and two water cavities pass to cooling water respectively and cool off, and greatly reduce the heating of stator line bag and bearing.Thereby improved the service life of main shaft.Front casing 5 adopts " O " type sealing ring I4 and sealing ring II15 to seal respectively with fore bearing chamber 7, when the water route is stopped up, can install and remove easily, so that clean.
Claims (1)
1. a novel numerical control grinding machine high-speed electric main shaft; Comprise main shaft (12); Be enclosed within the housing (9) and the stator at main shaft (12) middle part respectively; And the front shroud (1), preceding gland (2), preceding spacer ring (3), front casing (5), fore bearing chamber (8) and the preceding nut (13) that are enclosed within main shaft (12) front portion respectively; It is characterized in that: preceding gland (2) is connected through bolt with preceding nut (13); Leave little gap between preceding gland (2) and main shaft (12) end; The end face groove of opening on preceding gland (2) front end face forms labyrinth seal with the end face groove of opening on preceding nut (13), has the scupper (14) that is communicated with this labyrinth seal on the diapire of front casing (5), and the end face groove of opening on preceding gland (2) rear end face forms another road labyrinth seal with the end face groove of opening on preceding spacer ring (3); Be provided with cup water cavity (6) between front casing (5) and fore bearing chamber (7); Socket stator liner (8) between housing (9) and the stator (10) is provided with water cavity (11) in the housing between stator liner (8) and the housing (9), be with sealing ring I (4) and sealing ring II (15) between front casing (5) and fore bearing chamber (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220209330 CN202622557U (en) | 2012-05-11 | 2012-05-11 | Novel high-speed electric spindle of numerical control grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220209330 CN202622557U (en) | 2012-05-11 | 2012-05-11 | Novel high-speed electric spindle of numerical control grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622557U true CN202622557U (en) | 2012-12-26 |
Family
ID=47375800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220209330 Expired - Lifetime CN202622557U (en) | 2012-05-11 | 2012-05-11 | Novel high-speed electric spindle of numerical control grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194028A (en) * | 2018-10-17 | 2019-01-11 | 珠海格力电器股份有限公司 | The cooling system and electro spindle of the stator line packet of electro spindle |
-
2012
- 2012-05-11 CN CN 201220209330 patent/CN202622557U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194028A (en) * | 2018-10-17 | 2019-01-11 | 珠海格力电器股份有限公司 | The cooling system and electro spindle of the stator line packet of electro spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |