CN202040124U - Adjustable blade diffuser device for centrifugal air blower - Google Patents
Adjustable blade diffuser device for centrifugal air blower Download PDFInfo
- Publication number
- CN202040124U CN202040124U CN2011201706998U CN201120170699U CN202040124U CN 202040124 U CN202040124 U CN 202040124U CN 2011201706998 U CN2011201706998 U CN 2011201706998U CN 201120170699 U CN201120170699 U CN 201120170699U CN 202040124 U CN202040124 U CN 202040124U
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- CN
- China
- Prior art keywords
- diffuser
- guide wheel
- vane
- connecting rod
- centrifugal blower
- 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 - Lifetime
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Abstract
The utility model discloses an adjustable blade diffuser device for a centrifugal air blower, which comprises diffuser blades, rocker arms, connecting rods, a circular ring, a guide wheel, a long connecting rod, an electric actuator, a guide wheel support, bushings, an actuator mounting sheet and a connector. A double quad-connecting-rod mechanism is adopted, a rocker bar on an output rotary shaft of the electric actuator is connected with one end of the long connecting rod, and the other end of the long connecting rod is connected with the circular ring to form a quad-connecting-rod mechanism. Meanwhile, the circular ring is connected with an end of the one connecting rod, the other end of the connecting rod is connected with one rocker arm connected with a diffuser blade, the circular ring drives the connecting rods and the rocker arms to lead the diffuser blades to rotate around a rotary shaft of the diffuser, and thereby another quad-connecting-rod mechanism is formed. The guide wheel support is mounted on the connector and provided with a small shaft on which the guide wheel is sleeved, and the guide wheel is capable of freely rotating around the small shaft. The circular ring is mounted in a clamping groove of the guide wheel to rotate around a fixed shaft in the plane, the connector is provided with mounting holes, and the bushings are mounted on the mounting holes and used for mounting and positioning the diffuser blades. The actuator mounting sheet is fixed onto the connector and used for mounting the electric actuator.
Description
Technical field
The utility model relates to a kind of centrifugal type air blower, adopts the adjustable vane diffuser system, belongs to field of fluid machinery.
Background technique
The adjustable vane Diffuser mechanism of existing centrifugal type air blower all adopts the form that forms sliding pair between annulus and rocking arm, has bigger drive gap when ring belt shakes when arm rotates, and transmission accuracy is low.The driving force of present existing adjustable vane Diffuser mechanism is provided by hydraulic pressure, and its shortcoming is low-response, the fluid temperature influence, should not under the environment of high temperature or low temperature, work, and fluid pollutes easily, can influence the reliability of system works, is difficult for when breaking down checking and getting rid of.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, a kind of adjustable vane diffuser system that drives with electric actuator is provided, make the degree of regulation height, transmission performance is good, response is fast, to reach the adjusting purpose better, widen range of flow, raising surge margin and the efficient of centrifugal blower.
A kind of centrifugal blower adjustable vane diffuser system comprises diffuser vane, rocking arm, connecting rod, annulus, guide wheel, long connecting rod, electric actuator, guide wheel bearing, lining, final controlling element installation sheet and connecting body;
Adopt double-four link mechanism, the rocking bar on the electric actuator output revolving shaft links to each other with an end of long connecting rod, and the other end of long connecting rod links to each other with annulus, forms a quadratic crank mechanism; Simultaneously, annulus connects an end of a connecting rod, and the other end of connecting rod connects a rocking arm, and rocking arm connects a diffuser vane, and annulus drivening rod and rocking arm make diffuser vane around himself rotating shaft rotation, form another quadratic crank mechanism; The guide wheel bearing is installed on the connecting body, is had little axle on the guide wheel bearing, guide wheel is inserted on this axle, and guide wheel can freely rotate around this; Annulus is installed in the draw-in groove of guide wheel to guarantee that annulus planar rotates in fixed axis; Connecting body is provided with mounting hole, and lining is installed on the mounting hole, is used for installing and the location diffuser vane; The final controlling element installation sheet is fixed on the connecting body, is used to install electric actuator.
Advantage of the present utility model is:
Adopt inlet established angle adjustable blades Diffuser, after the established angle of diffuser vane changed, the throat opening area of its air-flow path also changed thereupon, realized centrifugal blower high efficiency work under unsteady flow amount operating mode.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a meridian plane sectional drawing of the present utility model;
Fig. 3 is the structural drawing of one of them quadratic crank mechanism of the utility model;
Fig. 4 is impeller of the present utility model and adjustable vane Diffuser structural drawing figure.
Among the figure:
The 1-diffuser vane, 2-rocking arm, 3-connecting rod, 4-annulus, 5-guide wheel, 6-long connecting rod, 7-electric actuator, 8-guide wheel bearing, 9-lining, 10-final controlling element installation sheet, 11-connecting body
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The utility model is a kind of centrifugal blower adjustable vane diffuser system, as depicted in figs. 1 and 2, comprise diffuser vane 1, rocking arm 2, connecting rod 3, annulus 4, guide wheel 5, long connecting rod 6, electric actuator 7, guide wheel bearing 8, lining 9, final controlling element installation sheet 10 and connecting body 11.
The utility model adopts double-four link mechanism, and the rocking bar on electric actuator 7 output revolving shafts links to each other with an end of long connecting rod 6, and the other end of long connecting rod 6 links to each other with the annulus 4 of planar dead axle rotation, forms a quadratic crank mechanism; Simultaneously, annulus 4 connects an end of a connecting rod 3, and the other end of connecting rod 3 connects a rocking arm 2, and rocking arm 2 connects a diffuser vane 1, and annulus 4 drivening rods 3 and rocking arm 2 make diffuser vane 1 around himself rotating shaft rotation, form another quadratic crank mechanism.The utility model has 18 diffuser vanes 1, evenly distributes vertically.The quantity of connecting rod 3, rocking arm 2 equates with diffuser vane 1
As shown in Figure 3 and Figure 4, connecting body 11 plays important installation and supporting effect in the utility model, and 3 stiffening ribs are arranged on it, is respectively applied for 3 guide wheel bearings 8 are installed, and connects by screw.Have little axle on the guide wheel bearing 8, guide wheel 5 is inserted on this axle, and axle head is located with collar, and guide wheel 5 can freely rotate around this.Annulus 4 is branch half formulas, is installed in the draw-in groove of 3 guide wheels 5 to guarantee that annulus planar rotates in fixed axis., lining 9 is to be contained on 18 mounting holes of connecting body 11, its role is to install and location diffuser vane 1.Final controlling element installation sheet 10 to connecting body 11, is used to install electric actuator 7 by screw.
Wherein, the rotating shaft of diffuser vane 1 adopts the location, gap to cooperate with lining 9, and quality of fit is
(unit bore system); Lining 9 then adopts interference fit with cooperating of connecting body 11, and its quality of fit is
(unit bore system).
Gap between diffuser vane 1 and the two side is 0.3mm.
The axle of diffuser vane 1 adopts dismountable clamping type with the means of fixation of rocking arm 2.
When needs were regulated, electric actuator 7 output revolving shafts turned over an angle, made annulus 4 also turn over an angle by rocking bar 3 and long connecting rod 6, and annulus 4 drivening rod 3 and rocking arm 2 again makes diffuser vane 1 turn over an angle around its rotating shaft, realized the purpose of regulating.
Adopt the benefit of adjustable vane Diffuser of the present utility model: behind the power condition changing, the airflow direction that enters the Diffuser of centrifugal blower changes, and the angle of attack occurs at the vane diffuser inlet.If flow reduces too much, form serious disengaging and cause the blower surge at forward face; If when flow changes, mobility status to reduce the angle of attack of air-flow, just can be improved in how much angles of corresponding change vane diffuser import, enlarges stable operation range.
Claims (10)
1. a centrifugal blower adjustable vane diffuser system is characterized in that, comprises diffuser vane, rocking arm, connecting rod, annulus, guide wheel, long connecting rod, electric actuator, guide wheel bearing, lining, final controlling element installation sheet and connecting body;
Adopt double-four link mechanism, the rocking bar on the electric actuator output revolving shaft links to each other with an end of long connecting rod, and the other end of long connecting rod links to each other with annulus, forms a quadratic crank mechanism; Simultaneously, annulus connects an end of a connecting rod, and the other end of connecting rod connects a rocking arm, and rocking arm connects a diffuser vane, and annulus drivening rod and rocking arm make diffuser vane around himself rotating shaft rotation, form another quadratic crank mechanism; The guide wheel bearing is installed on the connecting body, is had little axle on the guide wheel bearing, guide wheel is inserted on this axle, and guide wheel can freely rotate around this; Annulus is installed in the draw-in groove of guide wheel to guarantee that annulus planar rotates in fixed axis; Connecting body is provided with mounting hole, and lining is installed on the mounting hole, is used for installing and the location diffuser vane; The final controlling element installation sheet is fixed on the connecting body, is used to install electric actuator.
2. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that described diffuser vane is 18, evenly distributes vertically.
3. according to claim 1 or 2 described a kind of centrifugal blower adjustable vane diffuser systems, it is characterized in that described connecting body is provided with 18 mounting holes.
4. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that the quantity of described connecting rod, rocking arm equates with diffuser vane.
5. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that described connecting body is provided with 3 stiffening ribs, is respectively applied for 3 guide wheel bearings are installed.
6. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that, described guide wheel is inserted in the little axle on the guide wheel bearing, and axle head is located with collar.
7. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that, the rotating shaft of described diffuser vane adopts the location, gap to cooperate with lining, and quality of fit is
8. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that described lining then adopts interference fit with cooperating of connecting body, and its quality of fit is
9. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that the gap between described diffuser vane and the two side is 0.3mm.
10. a kind of centrifugal blower adjustable vane diffuser system according to claim 1 is characterized in that, the axle of described diffuser vane adopts dismountable clamping type with the means of fixation of rocking arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201706998U CN202040124U (en) | 2011-05-25 | 2011-05-25 | Adjustable blade diffuser device for centrifugal air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201706998U CN202040124U (en) | 2011-05-25 | 2011-05-25 | Adjustable blade diffuser device for centrifugal air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040124U true CN202040124U (en) | 2011-11-16 |
Family
ID=44967570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201706998U Expired - Lifetime CN202040124U (en) | 2011-05-25 | 2011-05-25 | Adjustable blade diffuser device for centrifugal air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040124U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671270A (en) * | 2013-11-30 | 2014-03-26 | 西安交通大学 | Centrifugal compressor with vibratory diffuser blade |
| CN105041721A (en) * | 2015-07-15 | 2015-11-11 | 黑龙江凯普瑞机械设备有限公司 | Blade diffuser and volute assembly and compressor |
| CN106704265A (en) * | 2016-11-11 | 2017-05-24 | 珠海格力电器股份有限公司 | Diffusing device, diffuser mounting structure, mechanical device and refrigerating equipment |
| CN107387459A (en) * | 2017-08-30 | 2017-11-24 | 北京航空航天大学 | A kind of centrifugal blower inlet guide vane and diffuser vane simultaneously match governor motion |
| CN110067778A (en) * | 2019-06-06 | 2019-07-30 | 安徽虎渡科达流体机械有限公司 | A kind of adjustable diffuser and its refrigeration compressor |
| CN110524474A (en) * | 2019-07-17 | 2019-12-03 | 宁波市三羊机电制造有限公司 | A kind of guide wheel installation mold |
-
2011
- 2011-05-25 CN CN2011201706998U patent/CN202040124U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671270A (en) * | 2013-11-30 | 2014-03-26 | 西安交通大学 | Centrifugal compressor with vibratory diffuser blade |
| CN103671270B (en) * | 2013-11-30 | 2016-03-30 | 西安交通大学 | The centrifugal compressor that a kind of diffuser vane can vibrate |
| CN105041721A (en) * | 2015-07-15 | 2015-11-11 | 黑龙江凯普瑞机械设备有限公司 | Blade diffuser and volute assembly and compressor |
| CN106704265A (en) * | 2016-11-11 | 2017-05-24 | 珠海格力电器股份有限公司 | Diffusing device, diffuser mounting structure, mechanical device and refrigerating equipment |
| CN107387459A (en) * | 2017-08-30 | 2017-11-24 | 北京航空航天大学 | A kind of centrifugal blower inlet guide vane and diffuser vane simultaneously match governor motion |
| CN107387459B (en) * | 2017-08-30 | 2019-01-29 | 北京航空航天大学 | A kind of centrifugal blower inlet guide vane and diffuser vane simultaneously match regulating mechanism |
| CN110067778A (en) * | 2019-06-06 | 2019-07-30 | 安徽虎渡科达流体机械有限公司 | A kind of adjustable diffuser and its refrigeration compressor |
| CN110067778B (en) * | 2019-06-06 | 2023-12-15 | 宁波虎渡能源科技有限公司 | Adjustable diffuser and refrigeration compressor thereof |
| CN110524474A (en) * | 2019-07-17 | 2019-12-03 | 宁波市三羊机电制造有限公司 | A kind of guide wheel installation mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |