CN201115872Y - Main spindle box water-proof device - Google Patents
Main spindle box water-proof device Download PDFInfo
- Publication number
- CN201115872Y CN201115872Y CNU2007200153642U CN200720015364U CN201115872Y CN 201115872 Y CN201115872 Y CN 201115872Y CN U2007200153642 U CNU2007200153642 U CN U2007200153642U CN 200720015364 U CN200720015364 U CN 200720015364U CN 201115872 Y CN201115872 Y CN 201115872Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- ring flange
- spindle box
- bearing
- main
- 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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Abstract
The utility model discloses a waterproof device, in particular to a rigid short main spindle box waterproof device used for a machine tool. The device comprises a main shaft (1) which is arranged on a main shaft housing body (2) through a bearing and a ring flange (5) which is nested on the main shaft (1) and connected on the main shaft housing body (2); air tightness is available between the ring flange (5) and the main shaft (1). The waterproof device is characterized in that a drain hole (6) is arranged on the ring flange (5); the drain hole (6) is used for communicating the clearance between the ring flange (5) and the main shaft (1) with the outer side of the ring flange. When in operation, the water generated through compressing the air is discharged through the drain hole (6) instead of entering into the inner side of the housing body along the main shaft without any influence on the bearing, thereby prolonging the service life of the bearing.
Description
Technical field
The utility model relates to a kind of water-tight device, particularly a kind of water-tight device that is used for the short main spindle box of rigidity on the lathe.
Background technology
The short main shaft of rigidity on the lathe is installed in the main shaft casing with bearing, it is external that the part of main shaft is stretched out main spindle box, stretch out the place at main shaft and be set with ring flange, ring flange is fixed on the main shaft casing, be processed with air duct on the main shaft casing He on the ring flange, air duct extend into the endoporus of ring flange and the gap location that main shaft forms, during work, by the compressed air feedway compressed air is delivered between ring flange and the main shaft through air duct, formed air seal herein.The gas sealing structure of the short main shaft of this rigidity has following shortcoming: owing to be the gap location that compressed air is pressed into ring flange and main shaft when work, compressed air can have a certain amount of moisture content, these moisture content are easy to enter in the main shaft casing along main shaft, can produce corrosiveness to bearing, influence the use group life of bearing.
Summary of the invention
The technical problems to be solved in the utility model is easily to cause moisture content to enter the problem of main spindle box internal corrosion bearing in the short main shaft air seal of the existing rigidity process, at the problems referred to above, the purpose of this utility model provides a kind of moisture content that prevents and enters the main spindle box water-tight device of main shaft casing, overcomes the deficiencies in the prior art.
Main spindle box water-tight device of the present utility model, it comprises with bearing and is installed in the main shaft 1 in the main shaft casing 2 and is sleeved on the main shaft 1 and is connected ring flange 5 on the main shaft casing 2, be air seal between ring flange 5 and the main shaft 1, it is characterized in that: be provided with osculum 6 on ring flange 5, osculum 6 is communicated with the gap between ring flange 5 and the main shaft 1 with the ring flange outside.
The port that main spindle box water-tight device of the present utility model, wherein said osculum 6 are positioned at the outside is located on the circumferential side wall of ring flange 5.
Main spindle box water-tight device of the present utility model, owing on ring flange 5, be provided with osculum 6, osculum 6 is communicated with the gap between ring flange 5 and the main shaft 1 with the ring flange outside, the moisture content that compressed air produces during work can be discharged from osculum 6, be unlikely along main shaft and enter box inside, bearing is not produced any influence, can prolong the service life of bearing.
Description of drawings
Fig. 1 is the structural representation of the utility model main spindle box water-tight device.
The specific embodiment
As shown in the figure: 1 is main shaft, with bearing main shaft 1 is installed in the main shaft casing 2.The part of main shaft 1 is stretched out the outside of main shaft casing 2, be fixedly connected with ring flange 3 and ring flange 5 at the termination of main shaft casing 2 bolt, ring flange 3 and ring flange 5 all are sleeved on the main shaft 1, on main shaft casing 2, ring flange 3 and ring flange 5, be processed with the air duct 4 that is connected, air duct 4 is communicated to the gap location of ring flange 5 and main shaft 1, during work, compressed air feeder infeeds compressed air in air duct 4, forms air seal between ring flange 5 and main shaft 1.Be processed with osculum 6 on ring flange 5, the gap that forms between the inner port of osculum 6 and ring flange 5 and the main shaft 1 is communicated with, and the another port of osculum 6 is positioned on the outer circumference face of ring flange 5.The moisture content that compressed air produces during work can be discharged from osculum 6, is unlikely along main shaft 1 entering in the main shaft casing 2, makes bearing not by aqueous corrosion, can prolong the use group life of bearing.
Claims (2)
1, a kind of main spindle box water-tight device, it comprises with bearing and is installed in the main shaft (1) in the main shaft casing (2) and is sleeved on the main shaft (1) and is connected ring flange (5) on the main shaft casing (2), be air seal between ring flange (5) and the main shaft (1), it is characterized in that: be provided with osculum (6) on ring flange (5), osculum (6) is communicated with the gap between ring flange (5) and the main shaft (1) with the ring flange outside.
2, main spindle box water-tight device according to claim 1 is characterized in that: the port that described osculum (6) is positioned at the outside is located on the circumferential side wall of ring flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200153642U CN201115872Y (en) | 2007-10-19 | 2007-10-19 | Main spindle box water-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200153642U CN201115872Y (en) | 2007-10-19 | 2007-10-19 | Main spindle box water-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201115872Y true CN201115872Y (en) | 2008-09-17 |
Family
ID=39990444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200153642U Expired - Fee Related CN201115872Y (en) | 2007-10-19 | 2007-10-19 | Main spindle box water-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201115872Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240530A (en) * | 2015-10-21 | 2016-01-13 | 成都绿迪科技有限公司 | Water-proof device of air compressor main shaft |
| CN110899732A (en) * | 2019-12-04 | 2020-03-24 | 浙江双正科技股份有限公司 | Power head |
-
2007
- 2007-10-19 CN CNU2007200153642U patent/CN201115872Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240530A (en) * | 2015-10-21 | 2016-01-13 | 成都绿迪科技有限公司 | Water-proof device of air compressor main shaft |
| CN110899732A (en) * | 2019-12-04 | 2020-03-24 | 浙江双正科技股份有限公司 | Power head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20121019 |