CN201836303U - Gear case used with medium and high-speed centrifugal fan - Google Patents
Gear case used with medium and high-speed centrifugal fan Download PDFInfo
- Publication number
- CN201836303U CN201836303U CN2010201476421U CN201020147642U CN201836303U CN 201836303 U CN201836303 U CN 201836303U CN 2010201476421 U CN2010201476421 U CN 2010201476421U CN 201020147642 U CN201020147642 U CN 201020147642U CN 201836303 U CN201836303 U CN 201836303U
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- China
- Prior art keywords
- gear
- high speed
- shaft
- speed
- gear case
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- 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
A gear case used with a medium and high-speed centrifugal fan comprises a gear case body (2), a driving shaft (1) and a high-speed shaft (4). The driving shaft (1) and the high-speed shaft (4) are disposed inside the gear case body (2). The gear case is characterized in that a low-speed herringbone gear (3) is arranged on the driving shaft (1), and a high-speed herringbone gear (6) is disposed on the high-speed shaft (4) and meshed with the low-speed herringbone gear (3) in a matching manner. The gear case adopting the herringbone gears avoids axial thrust between the matching gears. The herringbone gears are made of high-quality alloy steel and are long in service life. The gear case is used with the medium and high-speed centrifugal fan, improves mechanical efficiency of the fan, and greatly reduces energy consumption.
Description
Technical field
The utility model relates to a kind of supporting gear-box of high speed centrifugal blower that is used for, and belongs to mechanical device.
Background technique
At present, the high speed centrifugal blower extensively applies to industries such as environmental protection, sewage treatment, power station circulating fluid-bed, papermaking, metallurgy.The general rotating speed of high speed centrifugal blower needs by the gear-box speedup at 5000 rev/mins～20000 rev/mins, and as Fig. 1, traditional gear housing 2 is made up of driving shaft 1, low speed helical gear 30, high speed shaft 4, bearing shell 5, high speed helical gear 60 and thrust ring 7.Big small gear in the conventional gearbox adopts the helical teeth structure, and there is end thrust in helical gear, needs thrust ring 7 to come bearing axial pushing force.Making the complex structure of gear-box has increased manufacture cost, also is easy to simultaneously damage.
Summary of the invention
The utility model provides a kind of simple in structure, lower-cost new gear case just in order to overcome above-mentioned deficiency, makes gear-box not have end thrust substantially.
The technical solution of the utility model is:
The utility model is designed to the man type tooth-shape structure with the coupling gear of gear-box.
The supporting gear-box of a kind of high speed centrifugal blower, comprise gear housing, place driving shaft and high speed shaft in the gear housing, described driving shaft is provided with the low speed double helical spurgear, and high speed shaft is provided with the high speed double helical spurgear with low speed double helical spurgear mating engagement.
Described driving shaft and high speed shaft are installed on the gear housing by bearing shell.
Described low speed double helical spurgear and driving shaft are structure as a whole.
Described high speed double helical spurgear and high speed shaft are structure as a whole.
The beneficial effects of the utility model are:
Gear-box of the present utility model adopts double helical spurgear, makes not have end thrust between coupling gear substantially.
Double helical spurgear of the present utility model adopts superior alloy steel, long service life.Gear-box of the present utility model is used for supporting high speed centrifugal blower, has improved the mechanical efficiency of blower fan, and energy consumption reduces greatly.
Description of drawings
Fig. 1 is the internal structure schematic representation of conventional gearbox.
Fig. 2 is the internal structure schematic representation of gear-box of the present utility model.
Among the figure: 1 is that driving shaft, 2 is that gear housing, 3 is that low speed double helical spurgear, 30 is that low speed helical gear, 4 is that high speed shaft, 5 is that bearing shell, 6 is that high speed double helical spurgear, 60 is that high speed helical gear, 7 is a thrust ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As Fig. 2, the supporting gear-box of a kind of high speed centrifugal blower, comprise gear housing 2, place driving shaft 1 and high speed shaft 4 in the gear housing 2, driving shaft 1 is provided with low speed double helical spurgear 3, and high speed shaft 4 is provided with the high speed double helical spurgear 6 with low speed double helical spurgear 3 mating engagement.
Low speed double helical spurgear 3 is structure as a whole with driving shaft 1, high speed double helical spurgear 6 is structure as a whole with high speed shaft 4.Driving shaft 1 all is integrally-built gear shaft with high speed shaft 4.
Low speed double helical spurgear 3 or driving shaft 1 and low speed double helical spurgear 3 are installed on the driving shaft 1 of the present utility model are structure as a whole, high speed double helical spurgear 6 or high speed shaft 4 and high speed double helical spurgear 6 are installed on the high speed shaft 4 are structure as a whole; The high, low speed coupling gear adopts the gear of herringbone structure, and end thrust is cancelled out each other; Driving shaft 1 rotation that slowly runs is passed to high speed shaft 4 by the capable gear of herringbone of pairing with power, thereby drives running up of centrifugal fan.
Claims (4)
1. gear-box that the high speed centrifugal blower is supporting, comprise gear housing (2), place driving shaft (1) and high speed shaft (4) in the gear housing (2), it is characterized in that described driving shaft (1) is provided with low speed double helical spurgear (3), high speed shaft (4) is provided with the high speed double helical spurgear (6) with low speed double helical spurgear (3) mating engagement.
2. the supporting gear-box of high speed centrifugal blower according to claim 1 is characterized in that described driving shaft (1) and high speed shaft (4) are installed on the gear housing (2) by bearing shell (5).
3. the supporting gear-box of high speed centrifugal blower according to claim 1 is characterized in that described low speed double helical spurgear (3) and driving shaft (1) are structure as a whole.
4. the supporting gear-box of high speed centrifugal blower according to claim 1 is characterized in that described high speed double helical spurgear (6) and high speed shaft (4) are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201476421U CN201836303U (en) | 2010-03-31 | 2010-03-31 | Gear case used with medium and high-speed centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201476421U CN201836303U (en) | 2010-03-31 | 2010-03-31 | Gear case used with medium and high-speed centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836303U true CN201836303U (en) | 2011-05-18 |
Family
ID=44006408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201476421U Expired - Fee Related CN201836303U (en) | 2010-03-31 | 2010-03-31 | Gear case used with medium and high-speed centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813159A (en) * | 2010-03-31 | 2010-08-25 | 百事德机械（江苏）有限公司 | Gear case matched with middle/high speed centrifugal fan |
| CN106402341A (en) * | 2016-10-14 | 2017-02-15 | 南京创贝高速传动机械有限公司 | High-speed gearbox matched with high-speed fan for use |
-
2010
- 2010-03-31 CN CN2010201476421U patent/CN201836303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813159A (en) * | 2010-03-31 | 2010-08-25 | 百事德机械（江苏）有限公司 | Gear case matched with middle/high speed centrifugal fan |
| CN106402341A (en) * | 2016-10-14 | 2017-02-15 | 南京创贝高速传动机械有限公司 | High-speed gearbox matched with high-speed fan for use |
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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: 20110518 Termination date: 20160331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |