CN101725568B - Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan - Google Patents

Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan Download PDF

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Publication number
CN101725568B
CN101725568B CN2009102225687A CN200910222568A CN101725568B CN 101725568 B CN101725568 B CN 101725568B CN 2009102225687 A CN2009102225687 A CN 2009102225687A CN 200910222568 A CN200910222568 A CN 200910222568A CN 101725568 B CN101725568 B CN 101725568B
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CN
China
Prior art keywords
diffusion guide
positioning plate
rotating disk
guide blade
centrifugal fan
Prior art date
Application number
CN2009102225687A
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Chinese (zh)
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CN101725568A (en
Inventor
金炳庆
Original Assignee
无锡杰尔压缩机有限公司
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Priority to CN2009102225687A priority Critical patent/CN101725568B/en
Publication of CN101725568A publication Critical patent/CN101725568A/en
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Publication of CN101725568B publication Critical patent/CN101725568B/en

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Abstract

The invention relates to a diffusion guide vane synchronous adjusting mechanism of a high-speed centrifugal fan. In the invention, a plurality of diffusion guide vanes and a guide vane shaft sleeve which are arranged on a supporting positioning plate form a second revolute pair, a shaft part of a tumbler is arranged in the tumbler shaft sleeve to form a first revolute pair, the tumbler is fixedly connected with the a shaft part of the diffusion guide vanes, a plurality of sliding grooves which are corresponding to the total number of the plurality of diffusion guide vanes are uniformly distributed on a turnplate, the tumbler shaft sleeve of the tumbler shaft is arranged in the sliding grooves of the turnplate to form a sliding pair, a rolling bearing is arranged between the turnplate and the supporting positioning plate, and a pressing plate is arranged on the turnplate. The invention has the advantages of simple, compact and reasonable structure, lower production cost, small installing accumulated error, higher synchronous adjusting precision and good rigidity, and greatly reduces vibration noise in working condition.

Description

Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Technical field

The utility model relates to a kind of diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan, and specifically it is the mechanical device that is used for adjusting synchronously the diffusion guide blade angle on a kind of high-speed centrifugal fan, belongs to the mechanical structure technical field.

Background technique

In prior art, the diffusion guide blade on the high-speed centrifugal fan has two kinds: a kind of is fixing nonadjustable; Another kind is adjustable.Adjustable diffusion guide blade can guarantee that blower fan is in the operation of high efficiency state all the time under the different applying working conditions, reaches purpose of energy saving more.The synchronous adjustment of adjustable diffusion guide blade generally adopts gear, sprocket wheel or leverage class push and pull system to realize.Gear, sprocket system complicacy, manufacture cost is high; Leverage class push and pull system poor rigidity, vibration noise are big.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned deficiency, thereby a kind of diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan is provided, and it is low cost of manufacture not only, and good rigidly, vibrates little.

The technological scheme that provides according to the utility model; Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan adopts impeller to be connected to form rotor part through clamping bolt and speedup box high speed shaft, and spiral case is fixed on the speedup box flange together with the supporting positioning plate, and characteristic is that diffusion guide blade and stator axle sleeve are installed on the supporting positioning plate; Axial region on the pivoted arm is installed in and forms first revolute pair in the pivoted arm axle sleeve; Pivoted arm is fixedly connected with the axial region of diffusion guide blade, offers on the rotating disk to equate the sliding-groove that is uniformly distributed with diffusion guide blade quantity, and the pivoted arm axle sleeve on the tumbler shaft is installed in the sliding-groove of rotating disk and forms sliding pair; The stator portion of diffusion guide blade is installed in the Diffuser; And forming second revolute pair with being installed on the stator axle sleeve of supporting on the positioning plate, rotating disk is equipped with rolling bearing, back-up ring with supporting between the positioning plate, on the said rotating disk pressing plate is housed.

What be uniformly distributed with on the said rotating disk offers 9~21 sliding-grooves.

Compared with present technology the utility model has the following advantages:

The utility model is simple, compact and reasonable for structure; Manufacture cost is lower, and the installation accumulated error is little, synchronous regulation precision is higher.And good rigidly has reduced the vibration noise under the applying working condition greatly.

Description of drawings

Fig. 1 is the utility model structural representation plan view.

Fig. 2 is the utility model structural representation right elevation.

Embodiment

Following the utility model will combine the embodiment in the accompanying drawing to further describe:

Like Fig. 1, shown in Figure 2: the utility model comprises spiral case 1, speedup box flange 2, impeller 3, clamping bolt 4, high speed shaft 5, diffusion guide blade 6, stator axle sleeve 7, supporting positioning plate 8, back-up ring 9, fastening screw trip bolt 10, pivoted arm 11, pivoted arm axle sleeve 12, rotating disk 13, rolling bearing 14, back-up ring 15, pressing plate 16 etc.

The utility model impeller 3 is connected to form rotor part through clamping bolt 4 and speedup box high speed shaft 5; Spiral case 1 is fixed on the speedup box flange 2 together with supporting positioning plate 8; Diffusion guide blade 6 and stator axle sleeve 7 are installed on the supporting positioning plate 8; Axial region on the pivoted arm 11 is installed in and forms first revolute pair in the pivoted arm axle sleeve 12, and pivoted arm 11 is fixedly connected with the axial region of diffusion guide blade 6, is fixed by back-up ring 9, fastening screw trip bolt 10; Offer the sliding-groove that is uniformly distributed with 17 (normally 9~21) that equates with diffusion guide blade quantity on the rotating disk 13; Pivoted arm axle sleeve 12 on the tumbler shaft is installed in the sliding-groove 17 interior sliding pairs that form of rotating disk, and the stator portion of diffusion guide blade 6 is installed in the Diffuser, and forms second revolute pair with the stator axle sleeve 7 that is installed on the supporting positioning plate 8; Between rotating disk 13 and the supporting positioning plate 8 rolling bearing 14 and back-up ring 15 are housed, on the said rotating disk 13 pressing plate 16 are housed.

In high-speed centrifugal fan; The air hydrodynamic that impeller produces is transformed into the static air pressure (Diffuser is that impeller outer diameter is to a middle cylinder ring cavity of volute chamber) in the volute chamber through Diffuser, and 9~21 diffusion guide blades are installed in the Diffuser usually, and stator designs according to aerodynamic optimization; Has unsymmetrical section; The effect of stator is to make resistance of air minimum, to improve the operational efficiency of blower fan, reaches purpose of energy saving.When actual conditions off-design operating mode,, just can make blower fan under different operating modes, be in the operation of high efficiency state all the time through the angle of synchronous these diffusion guide blades of adjustment.

Working principle and process that the utility model is adjusted diffusion guide blade synchronously:

Like Fig. 1, shown in Figure 2, the utility model makes rotating disk 13 do rotation motion (with O through the driving force F that is applied on the rotating disk 1Be gyration center), when rotating disk 13 under the effect of driving force F with O 1During center steering, force pivoted arm 11 around central axis O 2Do corresponding rotation motion, the corresponding slip the sliding-groove 17 of rotating disk 13 in of pivoted arm axle sleeve 12 this moment, the revolution that diffusion guide blade 6 is made respective angles with the rotation of pivoted arm 11 is (with O 2Be center of rotation), realized adjustment thus to diffusion guide blade 6.Because the sliding-groove 17 on the rotating disk is uniformly distributed with consistent, this just guarantees that the adjustment to diffusion guide blade is synchronous (the adjustment angle is usually in ± 15 °).

Facts have proved, the utility model low cost of manufacture, good rigidly vibrates minimumly, and can guarantee that blower fan remains high efficiency state operation under very wide applying working condition.

Claims (3)

1. diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan; Comprise spiral case (1), impeller (3), high speed shaft (5), diffusion guide blade (6), supporting positioning plate (8); Said impeller (3) is connected to form rotor part through clamping bolt (4) and high speed shaft (5); Spiral case (1) is fixed on the speedup box flange (2) together with supporting positioning plate (8), it is characterized in that: said diffusion guide blade (6) and stator axle sleeve (7) are installed on the supporting positioning plate (8), and diffusion guide blade (6) forms second revolute pair with the stator axle sleeve (7) that is installed on the supporting positioning plate (8); Axial region on the pivoted arm (11) is installed in and forms first revolute pair in the pivoted arm axle sleeve (12); Pivoted arm (11) is fixedly connected with the axial region of diffusion guide blade (6), and rotating disk (13) is provided with and equates the sliding-groove (17) that is uniformly distributed with diffusion guide blade (6) quantity, and the pivoted arm axle sleeve (12) on the tumbler shaft is installed in the sliding-groove (17) of rotating disk and forms sliding pair; Between rotating disk (13) and the supporting positioning plate (8) rolling bearing (14) is housed, pressing plate (16) is housed on the said rotating disk (13).
2. diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan according to claim 1, what it is characterized in that being uniformly distributed with on the described rotating disk (13) offers 9~21 sliding-grooves (17).
3. diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan according to claim 1, the adjustment angle that it is characterized in that described diffusion guide blade (6) is in ± 15 °.
CN2009102225687A 2009-11-20 2009-11-20 Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan CN101725568B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102225687A CN101725568B (en) 2009-11-20 2009-11-20 Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102225687A CN101725568B (en) 2009-11-20 2009-11-20 Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

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Publication Number Publication Date
CN101725568A CN101725568A (en) 2010-06-09
CN101725568B true CN101725568B (en) 2012-05-30

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003415B (en) * 2010-11-24 2012-11-21 无锡杰尔压缩机有限公司 Structure for clamping single-stage high-speed centrifugal fan impeller
CN102619787A (en) * 2011-01-26 2012-08-01 江苏金通灵流体机械科技股份有限公司 Rear guide vane adjusting mechanism of centrifugal blower
CN103169424A (en) * 2011-12-20 2013-06-26 乐金电子(天津)电器有限公司 Diffuser capable of effectively reducing passing noise of vanes of motor
CN102734224B (en) * 2012-06-29 2015-04-22 无锡杰尔压缩机有限公司 Synchronous regulating device with inlet guide blades for high-speed centrifugal fan
CN103758788A (en) * 2014-01-17 2014-04-30 南方风机股份有限公司 Supercharging energy-saving type centrifugal fan
CN104100574A (en) * 2014-07-11 2014-10-15 无锡杰尔压缩机有限公司 Mechanism for synchronously adjusting diffusion guide vanes of fan

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410139A1 (en) * 1974-03-02 1975-09-11 Kloeckner Humboldt Deutz Ag gas turbine
CN101542128A (en) * 2007-04-20 2009-09-23 三菱重工业株式会社 Centrifugal compressor
CN201330717Y (en) * 2009-01-05 2009-10-21 珠海格力电器股份有限公司 Adjustable centrifugal type compressor
CN201554699U (en) * 2009-11-20 2010-08-18 无锡杰尔压缩机有限公司 Diffusion guide vane synchronization adjusting mechanism of high-speed centrifugal fan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410139A1 (en) * 1974-03-02 1975-09-11 Kloeckner Humboldt Deutz Ag gas turbine
CN101542128A (en) * 2007-04-20 2009-09-23 三菱重工业株式会社 Centrifugal compressor
CN201330717Y (en) * 2009-01-05 2009-10-21 珠海格力电器股份有限公司 Adjustable centrifugal type compressor
CN201554699U (en) * 2009-11-20 2010-08-18 无锡杰尔压缩机有限公司 Diffusion guide vane synchronization adjusting mechanism of high-speed centrifugal fan

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PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
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Denomination of invention: Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Effective date of registration: 20131119

Granted publication date: 20120530

Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch

Pledgor: Wuxi Jieer Compressor Co., Ltd.

Registration number: 2013990000868

Denomination of invention: Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Effective date of registration: 20131119

Granted publication date: 20120530

Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch

Pledgor: Wuxi Jieer Compressor Co., Ltd.

Registration number: 2013990000868

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CP03 Change of name, title or address

Address after: 214106 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi

Patentee after: JIANGSU GL-TURBO CORPORATION

Address before: 214101 No. three, No. 99, Furong Road, Xishan Economic Development Zone, Jiangsu, Wuxi

Patentee before: Wuxi Jieer Compressor Co., Ltd.

Address after: 214106 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi

Patentee after: JIANGSU GL-TURBO CORPORATION

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Denomination of invention: Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Effective date of registration: 20180327

Granted publication date: 20120530

Pledgee: Agricultural Bank of China, Limited by Share Ltd, Wuxi, Xishan branch

Pledgor: JIANGSU GL-TURBO CORPORATION

Registration number: 2018990000233

Denomination of invention: Diffusion guide vane synchronous adjusting mechanism of high-speed centrifugal fan

Effective date of registration: 20180327

Granted publication date: 20120530

Pledgee: Agricultural Bank of China, Limited by Share Ltd, Wuxi, Xishan branch

Pledgor: JIANGSU GL-TURBO CORPORATION

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Registration number: 2013990000868

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Pledgor before: Wuxi Jieer Compressor Co., Ltd.

Change date: 20180327

Registration number: 2013990000868

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Registration number: 2018990000233

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