CN2248262Y - Rotary blower - Google Patents
Rotary blower Download PDFInfo
- Publication number
- CN2248262Y CN2248262Y CN 95210279 CN95210279U CN2248262Y CN 2248262 Y CN2248262 Y CN 2248262Y CN 95210279 CN95210279 CN 95210279 CN 95210279 U CN95210279 U CN 95210279U CN 2248262 Y CN2248262 Y CN 2248262Y
- Authority
- CN
- China
- Prior art keywords
- rotary
- fan blade
- shell
- blower
- blades
- 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 relates to a rotary blower which comprises a casing with an air inlet and an air outlet, a deviated main shaft, a rotary drum, blades and other fittings. The blades of the blower are in a rotary type, namely, the blades can rotate around blade shafts of the blades when rotating. The utility model is also provided with a blade positioning device which is composed of a blade positioner and a freely rotary disc and is used for avoiding the friction among the blades and the inner circle of the casing. The rotary blower has the characteristics of simple structure, small size, low cost and less power consumption, and compared with a Roots and a Gayet's blowers under the same capacity, the utility model has large air pressure and air quantity. Because the blades are in the rotary type, the rotary blower can avoid a clamping phenomenon, and has the wide range of application.
Description
The utility model relates to a kind of blower, is specially a kind of rotary blower.
At present.The blower that surpasses 1500 column blast is mainly based on Roots blower and Jaeger blower.That these two kinds of blowers are made is complicated, volume is big and heavy, cost is high, power consumption is big.Because quality of fit height and maintenance difficult is brought a lot of inconvenience to production.
The purpose of this utility model specifically provides the structure characteristic of rotary blower for a kind of blower of new structure is provided.
The utility model is to adopt following measure to realize: this rotary blower, comprise and have into, the shell of exhaust outlet, be supported on the off normal main shaft on the shell, the rotary drum that is positioned at shell that connects firmly with main shaft, fan blade and other accessory, the fan blade of this rotary blower is supported on the end wing support of rotary drum by the blade shaft of its two ends and fan blade one through bearing, be provided with and the fan blade positioning work piece of fan blade center line in the end of each blade shaft with angle, the two ends of portion are provided with the shell bearing and connect and the free rotating disk concentric with the shell inner circumference in the enclosure, form sliding pair between this free rotating disk and the fan blade positioning work piece.Circle is for eccentric in main shaft and rotary drum and the shell, because fan blade is rotary, rotation along with rotary drum, fan blade can be along the eccentric circuferential spacing rotation that forms between rotary drum excircle and the shell inner circumference, change with the space in rotary course produces the negative pressure draft at the air intake oral-lateral, at the air-out oral-lateral gas high pressure is discharged.With the rotation of blade, the fan blade positioning work piece slides along free rotating disk, and the motion between this sliding pair plays synchronous positioning action to fan blade, avoids fan blade to reach friction and the temperature rise that produces therefrom with contacting of shell inner circumference.
The utlity model has simple in structure, volume is little, cost is low, the characteristics of little power consumption.This machine is the single shaft assembling type, has changed the structural type of Roots, the interlock of Ye Shi blower fan twin shaft, thereby has simplified production technology, dwindled volume, has reduced rolled steel dosage, has reduced power consumption.Adaptability is strong, accident is few.Because this machine is rotary blade, can cushion the bump that enters thing and dish out naturally, avoided Roots, the stuck phenomenon of Ye Shi blower fan.This blower fan has bigger blast, air quantity than Roots, Ye Shi wind under the situation with capacity.This machine also has characteristics easy to maintenance, that using scope is wide.
Accompanying drawing 1 has provided structural representation of the present utility model;
Accompanying drawing 2 is the sectional view of Fig. 1.
In conjunction with the accompanying drawings the utility model is further described as follows: this rotary blower comprises and has into, the shell 1 of exhaust outlet, be supported on the off normal main shaft 2 in the shell, the rotary drum that is positioned at shell 3 that connects firmly with main shaft, fan blade 4 and other accessory, the fan blade 4 of this blower is supported on the end wing support of rotary drum by the blade shaft 5 of its two ends and fan blade one through bearing, be provided with and the fan blade positioning work piece 6 of fan blade center line in the end of blade shaft 5 with angle, the two ends of portion are provided with the shell bearing and connect and the free rotating disk 7 concentric with the shell inner circumference in the enclosure, form sliding pair between this free rotating disk and the fan blade positioning work piece, this sliding pair is used for the synchronous location to fan blade, avoids fan blade to reach friction and the temperature rise that produces therefrom with contacting of shell inner circumference.For reducing the surface friction drag between this sliding pair, be provided with rolling bearing 8 in fan blade positioning work piece end, rotary drum end wing end of living in is provided with the plug 9 that make shell two ends formation oil pocket fixing with shell in the enclosure, in oil pocket, be marked with machine oil, be used for further reducing the surface friction drag between positioning work piece and the free rotating disk sliding pair.Free rotating disk is a law rotor not, it is rotation in the same way under the drive of positioning work piece, it not only plays the positioning action at fan blade inclination angle, also work to reduce positioning work piece end bearing rotation volume simultaneously, to improve bearing life, free disk shaped in fact also plays the oil effect of getting rid of like oil ring simultaneously, machine oil can be brought the block bearing at main shaft two ends, have good lubricating effect.
Claims (3)
1, a kind of rotary blower, the rotary drum that is positioned at shell, fan blade and other accessory that comprise the shell that has into and out of the air port, be supported on off normal main shaft on the shell, connect firmly with main shaft, it is characterized by: fan blade is supported on the end wing support of rotary drum by the blade shaft of its two ends and fan blade one through bearing, be provided with and the fan blade positioning work piece of fan blade center line in the end of each blade shaft with angle, the two ends of portion are provided with the shell bearing and connect and the free rotating disk concentric with the shell inner circumference in the enclosure, form sliding pair between this free rotating disk and the fan blade positioning work piece.
2, rotary blower as claimed in claim 1 is characterized by: be provided with rolling bearing in fan blade positioning work piece end.
3, as claim 1,2 described rotary blowers, it is characterized by: rotary drum end wing end of living in is provided with the plug that make shell two ends formation oil pocket fixing with shell in the enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210279 CN2248262Y (en) | 1995-05-04 | 1995-05-04 | Rotary blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210279 CN2248262Y (en) | 1995-05-04 | 1995-05-04 | Rotary blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248262Y true CN2248262Y (en) | 1997-02-26 |
Family
ID=33861046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210279 Expired - Fee Related CN2248262Y (en) | 1995-05-04 | 1995-05-04 | Rotary blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248262Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536815A (en) * | 2012-03-09 | 2012-07-04 | 袁埃斌 | Three-blade rotary swing air blower |
-
1995
- 1995-05-04 CN CN 95210279 patent/CN2248262Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536815A (en) * | 2012-03-09 | 2012-07-04 | 袁埃斌 | Three-blade rotary swing air blower |
| CN102536815B (en) * | 2012-03-09 | 2015-06-17 | 袁埃斌 | Three-blade rotary swing air blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |