CN202040123U - Inlet adjustable guide vane mechanism of centrifugal blower - Google Patents
Inlet adjustable guide vane mechanism of centrifugal blower Download PDFInfo
- Publication number
- CN202040123U CN202040123U CN2011201706979U CN201120170697U CN202040123U CN 202040123 U CN202040123 U CN 202040123U CN 2011201706979 U CN2011201706979 U CN 2011201706979U CN 201120170697 U CN201120170697 U CN 201120170697U CN 202040123 U CN202040123 U CN 202040123U
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- CN
- China
- Prior art keywords
- spanner
- guide vane
- vane
- inlet
- centrifugal blower
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- Expired - Lifetime
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Abstract
The utility model discloses an inlet adjustable guide vane mechanism of a centrifugal blower and belongs to the field of fluid machinery. Aiming at the defects of the existing adjustable guide vane mechanism, the utility model provides an adjusting mechanism which has a simple structure and is convenient to install. In the mechanism, the scheme that vane rotating shafts are directly driven by an actuator is adopted. The inlet adjustable guide vane mechanism is provided with ten guide vanes capable of rotating around the corresponding rotating shafts. The ten guide vanes are uniformly distributed on a certain section of an inlet casing along the circumferential direction. An output shaft of the electric actuator is directly connected with the vane rotating shafts through couplings. Wrenches A are fixed on five vane rotating shafts through locking cushions and wrenches B are fixed on the other five vane rotating shafts which are respectively adjacent to the corresponding five vane rotating shafts. The wrenches A and the wrenches B have opposite torsional directions and are alternately arranged. The wrenches A are connected with the corresponding wrenches B through bent-rod ball head rod end and spherical plain bearings to transfer torque, so that the synchronous adjustable of the ten vanes are realized. When the centrifugal blower works under the working condition of variable flow, the air inlet flow of a compressor can be changed only by changing the sizes of openings of the inlet guide vanes, the adjusting process is short and rapid and the transmission efficiency is high.
Description
Technical field
The utility model relates to a kind of centrifugal blower, adopts inlet adjustable vane mechanism, belongs to field of fluid machinery.
Background technique
The inlet adjustable vane mechanism of existing centrifugal blower all has circle structure, and annulus links to each other with rocking arm by joint shaft bearing and rotates with drive vane.Yet the requirement on machining accuracy height of annulus, and need the guide rail that supports its rotation, increased manufacturing and assembling difficulty; Slide relative between annulus and the guide rail has also increased frictional loss, and transmission efficiency is reduced.
Summary of the invention
The objective of the invention is in order to address the above problem, a kind of centrifugal blower inlet adjustable vane mechanism that drives with electric actuator is provided, the structure that it is novel, saved the annulus in the conventional construction, and the final controlling element output revolving shaft directly links to each other with the rotating shaft of major axis blade by coupling and makes it have higher transmission efficiency, to reach the adjusting purpose better, realize the adjustable air intake flow and the pre-swing angle of centrifugal blower.
A kind of centrifugal blower inlet adjustable vane mechanism, be assemblied in the outside of blower wheel, comprise electric actuator, coupling, major axis blade, minor axis blade, tighten pad, spanner A, spanner B, knee type bulb spherical plain bearing rod end, connecting rod, support and inlet casing;
Week along inlet casing upwards is evenly equipped with guide vane, and guide vane itself has rotating rotating shaft, and the rotating shaft of one of them guide vane links to each other with electric actuator by coupling, and this guide vane is the major axis blade of inlet guide vane, is called drive vane; Remaining guide vane is the minor axis blade, is called passive blade; All be with a spanner and one in each guide vane rotating shaft and tighten pad, the spanner difference that is with in the adjacent two guide vane rotating shafts, spanner A, spanner B alternately arrange; Spanner A or spanner B are fixed on the lock pad, and lock pad clamps the guide vane rotating shaft, make guide vane around himself rotating shaft rotation by pulling spanner; Knee type bulb spherical plain bearing rod end is equipped with at the spanner two ends, knee type bulb spherical plain bearing rod end respectively with about knee type bulb spherical plain bearing rod end pairing on the two adjacent spanners, the knee type bulb spherical plain bearing rod end of two pairings links to each other by connecting rod; Support is installed on the big flanged surface of inlet casing, uses screw to connect.The support upper end is used to install electric actuator.
Advantage of the present utility model is:
Adopt adjustable inlet guide vane mechanism, when centrifugal blower need be worked under unsteady flow amount operating mode, the openings of sizes that changes inlet guide vane can change the compressor air inlet machine flow, adjustment process of short duration rapidly and transmission efficiency high.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a side view of the present invention;
Fig. 3 is the schematic representation of spanner A of the present invention;
Fig. 4 is the schematic representation of spanner B of the present invention.
Among the figure:
The 1-electric actuator, the 2-coupling, 3-major axis blade, 4-minor axis blade, 5-tightens pad, 6-spanner A, 7-spanner B, 8-lining, 9-knee type bulb spherical plain bearing rod end, 10-connecting rod, 11-support, 12-inlet casing
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The utility model is an a kind of centrifugal blower inlet adjustable vane mechanism, as depicted in figs. 1 and 2, comprise electric actuator 1, coupling 2, major axis blade 3, minor axis blade 4, tighten parts such as pad 5, spanner A6, spanner B7, lining 8, knee type bulb spherical plain bearing rod end 9, connecting rod 10, support 11 and inlet casing 12.
The utility model is assemblied in the outside of blower wheel, 10 the guide vanes that upwards are evenly equipped with in week along inlet casing 12 with good aeroperformance, these guide vanes itself have rotating rotating shaft, the rotating shaft of one of them guide vane links to each other with electric actuator 1 by coupling 2, this guide vane is the major axis blade 3 of inlet guide vane, can be described as drive vane; Remaining 9 guide vane is a minor axis blade 4, can be described as passive blade.The blade profile of all guide vanes is identical, and difference is its shaft length difference, the axial length 85mm of major axis blade, the axial length 45mm of minor axis blade.All be with a spanner and one in each guide vane rotating shaft and tighten pad 5, the spanner difference that is with in the adjacent two guide vane rotating shafts, as overlapping spanner A6 in the drive vane rotating shaft, then be with spanner B7 on the blade rotor of its right and left, so spanner A6, spanner B7's alternately arranges.Spanner A6 as shown in Figure 3, spanner B7 as shown in Figure 4, the middle part of spanner A6 and spanner B7 is flat, has circular hole and can be inserted in the rotating shaft of guide vane, circular has the tapped hole of 3 M4, spanner can be fixed on the lock pad 5 by bolt; The plate face at spanner A6 two ends all reverses 18 degree angles along clockwise direction with the central panel face, and spanner B7 then is along reversing 18 degree angles counterclockwise.Spanner A6 or spanner B7 all use 3 screw to lock pad 5, and lock pad 5 makes it blade rotor is clamped by the mode of tightening screw, so just can make guide vane around himself rotating shaft rotation by pulling spanner.Knee type bulb spherical plain bearing rod end 9 is equipped with at the spanner two ends, respectively with about knee type bulb spherical plain bearing rod end 9 pairings on the two adjacent spanners, the knee type bulb spherical plain bearing rod end 9 of two pairings links to each other by connecting rod 10, make the moment of torsion of electric actuator 1 output to be delivered on each passive blade like this, make 10 blades realize synchronization regulation by drive vane.For the assembly technology that satisfies guide vane and support requirement, the blade installation hole of inlet casing 12 is provided with lining 8, by screw to inlet casing 12.Support 11 is installed on the big flanged surface of inlet casing 12, uses screw to connect, and is used to install and fix electric actuator 1.
Working principle of the present utility model is:
Air-flow is along the axial admission of casing, and each guide vane can rotate around the rotating shaft of self, the air inflow that can regulate air-flow by the angle of swing of regulating stator.When the rotation stator makes the air-flow rotation direction that enters impeller consistent with the impeller sense of rotation, just be called and prewhirl; When opposite, be called negative prewhirling with the impeller sense of rotation.The energy head that can make gas compressor of just prewhirling descends, and the negative energy head that can make gas compressor of prewhirling rises.So when the flow of gas compressor or pressure ratio need reduce, can adopt is just prewhirling regulated; When the flow of gas compressor or pressure ratio need increase, can adopt negative prewhirling to regulate.
Claims (6)
1. centrifugal blower inlet adjustable vane mechanism, it is characterized in that, be assemblied in the outside of blower wheel, comprise electric actuator, coupling, major axis blade, minor axis blade, tighten pad, spanner A, spanner B, knee type bulb spherical plain bearing rod end, connecting rod, support and inlet casing;
Week along inlet casing upwards is evenly equipped with guide vane, and guide vane itself has rotating rotating shaft, and the rotating shaft of one of them guide vane links to each other with electric actuator by coupling, and this guide vane is the major axis blade of inlet guide vane, is called drive vane; Remaining guide vane is the minor axis blade, is called passive blade; All be with a spanner and one in each guide vane rotating shaft and tighten pad, the spanner difference that is with in the adjacent two guide vane rotating shafts, spanner A, spanner B alternately arrange; Spanner A or spanner B are fixed on the lock pad, and lock pad clamps the guide vane rotating shaft, make guide vane around himself rotating shaft rotation by pulling spanner; Knee type bulb spherical plain bearing rod end is equipped with at the spanner two ends, knee type bulb spherical plain bearing rod end respectively with about knee type bulb spherical plain bearing rod end pairing on the two adjacent spanners, the knee type bulb spherical plain bearing rod end of two pairings links to each other by connecting rod; Support is installed on the inlet casing, is used to install electric actuator.
2. a kind of centrifugal blower inlet adjustable vane according to claim 1 mechanism is characterized in that described inlet casing is provided with 10 blade installation holes, and the hole is provided with lining, to inlet casing, is used to install guide vane by screw.
3. according to claim 1 or 2 described a kind of centrifugal blowers inlet adjustable vane mechanisms, it is characterized in that described guide vane is 10.
4. a kind of centrifugal blower inlet adjustable vane according to claim 1 mechanism, it is characterized in that, the middle part of described spanner A and spanner B is flat, having circular hole can be inserted in the rotating shaft of guide vane, circular has the tapped hole of 3 M4, spanner can be fixed on the lock pad by bolt; The plate face at spanner A two ends all reverses 18 degree angles along clockwise direction with the central panel face, and spanner B then is along reversing 18 degree angles counterclockwise.
5. a kind of centrifugal blower inlet adjustable vane according to claim 1 mechanism is characterized in that described support is installed on the big flanged surface of inlet casing, uses screw to connect, and the support upper end is used to install electric actuator.
6. a kind of centrifugal blower inlet adjustable vane according to claim 1 mechanism is characterized in that the axial length 85mm of described major axis blade, the axial length 45mm of minor axis blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201706979U CN202040123U (en) | 2011-05-25 | 2011-05-25 | Inlet adjustable guide vane mechanism of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201706979U CN202040123U (en) | 2011-05-25 | 2011-05-25 | Inlet adjustable guide vane mechanism of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040123U true CN202040123U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201706979U Expired - Lifetime CN202040123U (en) | 2011-05-25 | 2011-05-25 | Inlet adjustable guide vane mechanism of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040123U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374792A (en) * | 2012-04-30 | 2013-10-30 | 现代自动车株式会社 | Method and apparatus for manufacturing melt-blown fabric web having random and bulky characteristics |
| CN107339260A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | Boosting stream centrifugal blower |
| 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 |
| CN109210012A (en) * | 2018-09-30 | 2019-01-15 | 武汉格瑞拓机械有限公司 | A kind of symmetric double crank space connecting-rod is used for radially-arranged multi-axis turning mechanism |
| CN109356873A (en) * | 2018-09-30 | 2019-02-19 | 武汉格瑞拓机械有限公司 | A kind of long short pitch chain-drive multi-axis turning mechanism |
| CN112682356A (en) * | 2020-12-24 | 2021-04-20 | 钛灵特压缩机无锡有限公司 | Air inlet guide vane for gear speed-increasing centrifugal compressor |
| CN112682356B (en) * | 2020-12-24 | 2024-04-30 | 钛灵特压缩机无锡有限公司 | Inlet guide vane for gear speed-increasing centrifugal compressor |
-
2011
- 2011-05-25 CN CN2011201706979U patent/CN202040123U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374792A (en) * | 2012-04-30 | 2013-10-30 | 现代自动车株式会社 | Method and apparatus for manufacturing melt-blown fabric web having random and bulky characteristics |
| CN107339260A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | Boosting stream centrifugal blower |
| CN107339260B (en) * | 2017-04-11 | 2023-07-21 | 宁波方太厨具有限公司 | Boosting flow centrifugal fan |
| 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 |
| CN109210012A (en) * | 2018-09-30 | 2019-01-15 | 武汉格瑞拓机械有限公司 | A kind of symmetric double crank space connecting-rod is used for radially-arranged multi-axis turning mechanism |
| CN109356873A (en) * | 2018-09-30 | 2019-02-19 | 武汉格瑞拓机械有限公司 | A kind of long short pitch chain-drive multi-axis turning mechanism |
| CN112682356A (en) * | 2020-12-24 | 2021-04-20 | 钛灵特压缩机无锡有限公司 | Air inlet guide vane for gear speed-increasing centrifugal compressor |
| CN112682356B (en) * | 2020-12-24 | 2024-04-30 | 钛灵特压缩机无锡有限公司 | Inlet guide vane for gear speed-increasing centrifugal compressor |
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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 |