CN201448243U - Unloading device for Roots blower - Google Patents
Unloading device for Roots blower Download PDFInfo
- Publication number
- CN201448243U CN201448243U CN2009200467988U CN200920046798U CN201448243U CN 201448243 U CN201448243 U CN 201448243U CN 2009200467988 U CN2009200467988 U CN 2009200467988U CN 200920046798 U CN200920046798 U CN 200920046798U CN 201448243 U CN201448243 U CN 201448243U
- Authority
- CN
- China
- Prior art keywords
- blower
- main shaft
- blower fan
- gland
- belt wheel
- 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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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to an unloading device for a Roots blower, which belongs to the technical field of machinery, and comprises a blower main shaft and a blower belt wheel, wherein a connecting body is connected with an oil tank at the driving end of the blower by a flange, and the blower belt wheel is arranged on the connecting body by a bearing; the blower main shaft penetrates through the center of the connecting body, and an external spline is arranged outside the penetrated blower main shaft and is pressed on the blower main shaft by a locking screw cap; the blower main shaft is conically matched with the external spline, and a gland is sleeved outside the external spline; and the external spline is matched with the internal spline of the gland, and the gland is connected with the blower belt wheel. The utility model reduces the radial load of the bearing of a driving wheel at the driving end of the blower, prolongs the service life of the bearing, and makes the type selection of the bearing of the driving wheel at the driving end of the blower simple, and the unloading device has simple structure, easy guarantee of assembly precision and low whole running temperature.
Description
Technical field
The utility model relates to a kind of root's blower parts, belongs to the mechanical device technical field.
Technical background
Root's blower extensively applies to industrial fields such as environmental protection, electric power, oil, chemical industry, grain conveying.Common roots blower generally adopts belt transmission, when adopting belt transmission, the blower fan belt wheel is directly installed on the blower fan main shaft, the bearing of blower fan drive end driving shaft is except that the radial load that bears impeller rotation itself, also need bear the radial load that belt pull produces, cause shorten greatly the working life of the bearing of drive end driving shaft.
Summary of the invention
The utility model provides a kind of assemble simple, few, the reliable and stable relief arrangement of consumptive material just in order to overcome above-mentioned deficiency, and its inventive point is that blower fan drive end drive shaft bearing does not bear belt pull, and the pulling force of belt is transferred on the blower fan drive end fuel tank.Specifically be achieved like this: unloading device for Root's blower, comprise blower fan main shaft, blower fan belt wheel, it is characterized in that connected body and blower fan drive end fuel tank are connected by flange plate, the blower fan belt wheel by Bearing Installation on connected body, blower fan main shaft passes from the connected body center, the blower fan main shaft that passes is provided with an external splines outward, external splines is pressed on the blower fan main shaft by lock nut, blower fan main shaft and external splines taper connect, external splines is socketed with gland outward, the internal spline of external splines and gland connects, and described gland is connected with the blower fan belt wheel.。
The utility model is when belt transmission, and belt pull acts on the belt wheel, by bearing and connected body, this pulling force is transferred on blower fan drive end fuel tank and the end cap, realizes that pulling force shifts.The rotation of belt pulley realizes that earlier by interior external splines, be delivered on the blower fan driving shaft by cone match power transmits again.
Blower fan main shaft end of the present utility model is equipped with a cover cap outward, and this cover cap is fixed on the gland.
The utility model has reduced the radial load of blower fan drive end drive wheel bearing, has prolonged the working life of bearing, makes the bearing type selecting of blower fan drive end driving wheel simple, and this relief arrangement is simple in structure, and assembly precision guarantees that easily the overall operation temperature is low.
Description of drawings
Fig. 1 is the structural representation of traditional roots blower.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Unloading device for Root's blower, comprise blower fan main shaft 9, blower fan belt wheel 3, connected body 2 and blower fan drive end fuel tank 1 are connected by flange plate, blower fan belt wheel 3 is installed on the connected body 2 by bearing 4, blower fan main shaft 9 passes from connected body 2 centers, the blower fan main shaft 9 outer external spliness 6 that are provided with that pass, external splines 6 is pressed on the blower fan main shaft 9 by lock nut 7, blower fan main shaft 9 connects with external splines 6 tapers, the external splines 6 outer glands 5 that are socketed with, external splines 6 connects with the internal spline of gland 5, and gland 5 is connected with blower fan belt wheel 3, blower fan main shaft 9 ends are outer to be equipped with a cover cap 8, and this cover cap 8 is fixed on the gland 5.
Claims (2)
1. unloading device for Root's blower, comprise blower fan main shaft, blower fan belt wheel, it is characterized in that connected body and blower fan drive end fuel tank are connected by flange plate, the blower fan belt wheel by Bearing Installation on connected body, blower fan main shaft passes from the connected body center, the blower fan main shaft that passes is provided with an external splines outward, external splines is pressed on the blower fan main shaft by lock nut, blower fan main shaft and external splines taper connect, external splines is socketed with gland outward, the internal spline of external splines and gland connects, and described gland is connected with the blower fan belt wheel.
2. unloading device for Root's blower according to claim 1 is characterized in that the blower fan main shaft end is equipped with a cover cap outward, and this cover cap is fixed on the gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467988U CN201448243U (en) | 2009-06-25 | 2009-06-25 | Unloading device for Roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467988U CN201448243U (en) | 2009-06-25 | 2009-06-25 | Unloading device for Roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448243U true CN201448243U (en) | 2010-05-05 |
Family
ID=42552958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200467988U Expired - Fee Related CN201448243U (en) | 2009-06-25 | 2009-06-25 | Unloading device for Roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448243U (en) |
-
2009
- 2009-06-25 CN CN2009200467988U patent/CN201448243U/en not_active Expired - Fee Related
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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: 20100505 Termination date: 20120625 |