CN2786372Y - Fan speed reducer for cooling tower - Google Patents
Fan speed reducer for cooling tower Download PDFInfo
- Publication number
- CN2786372Y CN2786372Y CNU2005200813179U CN200520081317U CN2786372Y CN 2786372 Y CN2786372 Y CN 2786372Y CN U2005200813179 U CNU2005200813179 U CN U2005200813179U CN 200520081317 U CN200520081317 U CN 200520081317U CN 2786372 Y CN2786372 Y CN 2786372Y
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- cooling tower
- gear shaft
- blower fan
- middle cover
- 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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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a fan speed reducer for a cooling tower. An oil retaining disk (9) sheathed on a gear shaft (1) is added between a middle sleeve (3) and a bearing seat. The outer end face of the oil retaining disk (9) and the inner end face of the middle sleeve (3) are respectively provided with circular concave-convex parts (4) which are matched with each other. The transmission ratio is 7.6 to 7.7. The sealing property is excellent. The service life of the gear shaft is prolonged greatly. The operation cost of the device is decreased.
Description
Technical field
The utility model relates to a kind of speed reducer of blower fan of cooling tower.
Background technique
The speed reducer of existing blower fan of cooling tower generally adopts two outside framework oil seals to be directly installed on the bearing support by middle cover, is used for speed reducer is implemented sealing.Facts have proved, the poorly sealed defective of this sealing means ubiquity, the lubricant oil in the speed reducer still can partly run off, if the counter measure are not enough, can cause speed reducer to be damaged because of the lubricant oil disappearance.
On the other hand, gear shaft is in the high speed rotating state during owing to equipment work, and it directly contacts with outside framework oil seal will be subjected to heavy wear, and shorten working life.
The model utility content
Technical problem to be solved in the utility model provides a kind of blower fan of cooling tower speed reducer of new structure, in order to overcome the deficiency of above-mentioned existing like product, its sealability is improved, and the gear shaft wearing and tearing drop to minimum level.The utility model also provides preferred velocity ratio.
In order to address the above problem, the utility model has adopted following technological scheme.
A kind of blower fan of cooling tower speed reducer, gear shaft by Bearing Installation in bearing support, middle cover the inner is fixed on the bearing support, it is characterized in that: set up an oil baffle disc that is socketed on the gear shaft between middle cover and bearing support, the exterior edge face of oil baffle disc and the interior edge face of middle cover are respectively arranged with the annular concave-convex of working in coordination.
Increase axle sleeve, it is socketed on the gear shaft and cooperates installation with outside framework oil seal; The inner at axle sleeve also is equipped with O-ring seals.
Velocity ratio is 7.6-7.7.
Preferred velocity ratio is 7.62.
Described velocity ratio is the ratio of speed reducer input speed and output speed.This ratio also is key technology of the present utility model and creates point, has passed through the several times experiment and has drawn.
Because the utility model increased oil baffle disc, and adopt annular concave-convex to cooperate between oil baffle disc and the middle cover, under the oil baffle disc high speed rotating, lubricant oil high-speed motion thereupon in the gap of annular concave-convex forms and keeps off oily barrier.This speed reducer sealability excellence.
On the other hand, owing to set up axle sleeve between gear shaft and the outside framework oil seal, the sealing of outside framework oil seal becomes indirect sealing.When axle sleeve is worn down to a certain degree, change and get final product, prolonged the working life of gear shaft so greatly, reduced the operating cost of equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Further specify the utility model below in conjunction with embodiment.
As shown in Figure 1, among the embodiment of the present utility model, gear shaft 1 is installed in the bearing support by bearing 2, and the outer end of gear shaft 1 is fixed with land 6.Middle cover 3 is fixed on the bearing support by bolt 8.Set up an oil baffle disc 9, the interior edge face of the exterior edge face of oil baffle disc 9 and middle cover 3 is respectively arranged with the annular concave-convex 4 of working in coordination.Axle sleeve 5 is socketed on the gear shaft 1 and with outside framework oil seal 7 and cooperates installation.The inner at axle sleeve 5 also is equipped with O-ring seals 10, the sealing between formative gear axle 1 and the axle sleeve 5.
Claims (4)
1, a kind of blower fan of cooling tower speed reducer, gear shaft (1) is installed in the bearing support by bearing (2), middle cover (3) the inner is fixed on the bearing support, it is characterized in that: setting up an oil baffle disc (9) that is socketed on the gear shaft (1) between middle cover (3) and the bearing support, the interior edge face of the exterior edge face of oil baffle disc (9) and middle cover (3) is respectively arranged with the annular concave-convex (4) of working in coordination.
2, blower fan of cooling tower speed reducer as claimed in claim 1 is characterized in that: increase axle sleeve (5), it is socketed in gear shaft (1) and upward and with outside framework oil seal (7) cooperates installation; In the inner of axle sleeve (5) O-ring seals (10) is installed also.
3, blower fan of cooling tower speed reducer as claimed in claim 1 or 2 is characterized in that: velocity ratio is 7.6-7.7.
4, blower fan of cooling tower speed reducer as claimed in claim 3 is characterized in that: velocity ratio is 7.62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200813179U CN2786372Y (en) | 2005-01-24 | 2005-01-24 | Fan speed reducer for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200813179U CN2786372Y (en) | 2005-01-24 | 2005-01-24 | Fan speed reducer for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786372Y true CN2786372Y (en) | 2006-06-07 |
Family
ID=36774946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200813179U Expired - Fee Related CN2786372Y (en) | 2005-01-24 | 2005-01-24 | Fan speed reducer for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786372Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967021B (en) * | 2006-10-26 | 2010-07-07 | 浙江耐士伦机械有限公司 | Sealing structure in automobile cooling transmission device |
| CN102691793A (en) * | 2012-06-05 | 2012-09-26 | 横店集团联宜电机有限公司 | Shaft gear sealing structure |
| CN105422821A (en) * | 2015-12-25 | 2016-03-23 | 沃德传动（天津）股份有限公司 | Speed reducer |
-
2005
- 2005-01-24 CN CNU2005200813179U patent/CN2786372Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967021B (en) * | 2006-10-26 | 2010-07-07 | 浙江耐士伦机械有限公司 | Sealing structure in automobile cooling transmission device |
| CN102691793A (en) * | 2012-06-05 | 2012-09-26 | 横店集团联宜电机有限公司 | Shaft gear sealing structure |
| CN102691793B (en) * | 2012-06-05 | 2015-04-01 | 浙江联宜电机股份有限公司 | Shaft gear sealing structure |
| CN105422821A (en) * | 2015-12-25 | 2016-03-23 | 沃德传动（天津）股份有限公司 | Speed reducer |
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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: 20060607 Termination date: 20110124 |