CN204299961U - A kind of blower fan diffusion guide vane synchronous adjusting mechanism - Google Patents
A kind of blower fan diffusion guide vane synchronous adjusting mechanism Download PDFInfo
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- CN204299961U CN204299961U CN201420386065.XU CN201420386065U CN204299961U CN 204299961 U CN204299961 U CN 204299961U CN 201420386065 U CN201420386065 U CN 201420386065U CN 204299961 U CN204299961 U CN 204299961U
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- diffusion guide
- guide blade
- pivoted arm
- plate
- supporting location
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 62
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of blower fan diffusion guide vane synchronous adjusting mechanism, and specifically it is the mechanical device for synchronous adjustment diffusion guide blade angle on a kind of high-speed centrifugal fan, belongs to frame for movement technical field.It comprises spiral case, gear-box flange, impeller, high speed shaft, diffusion guide blade, supporting location-plate, pivoted arm, synchronization steering dish and drive rod, supporting location-plate is provided with multiple diffusion guide blade, the guide vane teunnion portion of multiple diffusion guide blade is rotatably installed in supporting location-plate, and the direction blade of multiple diffusion guide blade is identical.Be provided with synchronization steering dish in gear-box flange, synchronization steering dish is provided with and diffusion guide blade multiple pivoted arm one to one, the tumbler shaft portion of multiple pivoted arm is rotatably installed on synchronization steering dish.The utility model manufacturing cost is lower, and installation accumulated error is little, synchronous regulation precision is higher.And good rigidly, greatly reduce the vibration noise under applying working condition.
Description
Technical field
The utility model relates to a kind of blower fan diffusion guide vane synchronous adjusting mechanism, and specifically it is the mechanical device for synchronous adjustment diffusion guide blade angle on a kind of high-speed centrifugal fan, belongs to frame for movement technical field.
Background technology
In prior art, the diffusion guide blade on high-speed centrifugal fan has two kinds: one is fixing nonadjustable; Another kind is adjustable.Adjustable diffusion guide blade can guarantee that high-speed centrifugal fan is in high efficiency state all the time and runs under different applying working condition, reaches more energy-conservation object.In prior art, the synchronous adjustment of adjustable diffusion guide blade generally adopts gear, sprocket wheel or leverage class push and pull system to realize, and gear, sprocket system are complicated, and manufacturing cost is high; Leverage class push and pull system poor rigidity, vibration noise are large.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus provides a kind of blower fan diffusion guide vane synchronous adjusting mechanism, its low cost of manufacture, and the simple and good rigidly of mechanism, vibrates little.
According to the technical scheme that the utility model provides, a kind of blower fan diffusion guide vane synchronous adjusting mechanism comprises spiral case, gear-box flange, impeller, high speed shaft, diffusion guide blade, supporting location-plate, pivoted arm, synchronization steering dish and drive rod, spiral case and gear-box flange are bolted, and supporting location-plate is bolted in gear-box flange; Supporting location-plate center is through high speed shaft, and high speed shaft is matched in clearance with supporting location-plate, and described high speed shaft left end connects impeller by fastening bolt, and impeller is positioned at spiral case; Diffusion guide blade shaft rear end is provided with keyway; The rotating arm part of described pivoted arm is provided with keyway and locking slot.It is characterized in that: on supporting location-plate, be provided with multiple diffusion guide blade, multiple diffusion guide blade is uniformly distributed along supporting location-plate circumferencial direction, the guide vane teunnion portion of multiple diffusion guide blade is rotatably installed in supporting location-plate, the stator portion of multiple diffusion guide blade is positioned at the outer ring of snail box-shrouded impeller, and the blade circumferencial direction of described multiple diffusion guide blade is identical; Synchronization steering dish is provided with in gear-box flange, synchronization steering dish is provided with and diffusion guide blade multiple pivoted arm one to one, multiple pivoted arm is uniformly distributed along synchronization steering dish circumferencial direction, the tumbler shaft portion of multiple pivoted arm is rotatably installed on synchronization steering dish, the rotating arm part of pivoted arm to be connected with the guide vane teunnion portion keyway of diffusion guide blade by flat key locates, and locked by pivoted arm fastening bolt, the axis that the tumbler shaft portion central axis of each pivoted arm and the rotating arm part central axis (i.e. diffusion guide blade central axis) of pivoted arm are formed is parallel to each other and direction is consistent; Described gear-box flange connects drive rod by drive rod bearing, and drive rod front end is provided with eccentric shaft, and eccentric shaft connects the radial bearing being positioned at synchronization steering dish.
Further, stator axle sleeve is provided with between guide vane teunnion portion and supporting location-plate.
Further, diffusion guide blade is 9 ~ 21.
Further, pivoted arm axle sleeve is provided with between tumbler shaft portion and synchronization steering dish.
Further, be provided with bearing cover outside drive rod bearing, bearing cover prevents drive rod bearing separating tooth roller box flange.
Compared with the prior art the utility model has the following advantages:
The utility model structure is simple, compact, reasonable, and manufacturing cost is lower, and installation accumulated error is little, synchronous regulation precision is higher.And good rigidly, greatly reduce the vibration noise under applying working condition.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Fig. 2 is the utility model left view.
Fig. 3 is the utility model right view.
Description of reference numerals: 1-spiral case, 2-gear-box flange, 3-impeller, 4-fastening bolt, 5-high speed shaft, 6-diffusion guide blade, 6.1-guide vane teunnion portion, 6.2-stator portion, 7-stator axle sleeve, 8-stator axle sleeve, 9-flat key, 10-pivoted arm fastening bolt, 11-pivoted arm, 11.1-tumbler shaft portion, 11.2-rotating arm part, 12-pivoted arm axle sleeve, 13-synchronization steering dish, 14-radial bearing, 15-drive rod bearing, 16-bearing cover, 17-drive rod, 18-eccentric shaft, 19-diffuser, O
1-drive rod central axis, O
2-diffusion guide blade central axis, O
3-tumbler shaft portion central axis.
Detailed description of the invention
Embodiment in is by reference to the accompanying drawings further described by the utility model below:
As shown in Fig. 1 ~ 3, the utility model mainly comprises spiral case 1, gear-box flange 2, impeller 3, high speed shaft 5, diffusion guide blade 6, supporting location-plate 8, pivoted arm 11, synchronization steering dish 13 and drive rod 17, spiral case 1 and gear-box flange 2 are bolted, and supporting location-plate 8 is bolted in gear-box flange 2.Supporting location-plate 8 center is through high speed shaft 5, and high speed shaft 5 is matched in clearance with supporting location-plate 8.Described high speed shaft 5 left end connects impeller 3 by fastening bolt 4, and impeller 3 is positioned at spiral case 1.Rear end, described diffusion guide blade 6 guide vane teunnion portion 6.1 is provided with keyway.The rotating arm part 11.2 of described pivoted arm 11 is provided with keyway and locking slot.
Supporting location-plate 8 is provided with multiple diffusion guide blade 6, and multiple diffusion guide blade 6 is uniformly distributed along supporting location-plate 8 circumferencial direction.The guide vane teunnion portion 6.1 of described multiple diffusion guide blade 6 is rotatably installed in supporting location-plate 8, and be provided with stator axle sleeve 7 between guide vane teunnion portion 6.1 and supporting location-plate 8, the stator portion 6.2 of multiple diffusion guide blade 6 is positioned at the outer ring of spiral case 1 impeller 3.
The blade circumferencial direction of described multiple diffusion guide blade 6 is identical, and diffusion guide blade 6 is generally 9 ~ 21.
Be provided with synchronization steering dish 13 in gear-box flange 2, synchronization steering dish 13 is provided with and diffusion guide blade 6 multiple pivoted arm 11 one to one, multiple pivoted arm 11 is uniformly distributed along synchronization steering dish 13 circumferencial direction.The tumbler shaft portion 11.1 of described multiple pivoted arm 11 is rotatably installed on synchronization steering dish 13, pivoted arm axle sleeve 12 is provided with between tumbler shaft portion 11.1 and synchronization steering dish 13, the rotating arm part 11.2 of pivoted arm 11 is connected with the keyway of the rear end, guide vane teunnion portion 6.1 of diffusion guide blade 6 by flat key 9 locates, and locked by pivoted arm fastening bolt 10, the central axis O in the tumbler shaft portion 11.1 of each pivoted arm 11
3with central axis (the i.e. O of the rotating arm part 11.1 of pivoted arm 11
2-diffusion guide blade central axis) axis that formed is parallel to each other and direction is consistent.
Described gear-box flange 2 connects drive rod 17 by drive rod bearing 15, and drive rod 17 front end is provided with eccentric shaft 18, and eccentric shaft 18 connects the radial bearing 14 being positioned at synchronization steering dish 13.
Be provided with bearing cover 16 outside described drive rod bearing 15, bearing cover 16 prevents drive rod bearing 15 separating tooth roller box flange 2.
In high-speed centrifugal fan, the air hydrodynamic that impeller produces is by the diffuser 19(diffuser of a spiral case inside and impeller outer ring cylinder ring cavity to volute chamber centre) be transformed into static air pressure in volute chamber, 9 ~ 21 diffusion guide blades are installed in diffuser usually, stator designs according to aerodynamic optimization, there is unsymmetrical section, the effect of stator makes air drag minimum, to improve the operational efficiency of blower fan, reaches energy-conservation object.When actual condition off-design operating mode, by the angle of these diffusion guide blades of synchronous adjustment, can make blower fan under different operating mode, be in high efficiency state all the time and run.
The utility model is to the operation principle of diffusion guide blade synchronous adjustment and process:
As shown in Fig. 1 ~ 3, the utility model, by being applied to the power F on drive rod, makes drive rod do gyration (with O
1for the centre of gyration), the eccentric shaft on drive rod drives synchronization steering dish to rotate, and forces pivoted arm synchronously around diffusion guide blade central axis O
2do gyration, diffusion guide blade does the revolution of respective angles (with O with the rotation of pivoted arm
2for center of rotation), thus achieve the adjustment to diffusion guide blade angle.Direction due to pivoted arm is consistent, and this just guarantees that to the adjustment of diffusion guide blade be synchronous (adjustment angle is usually in ± 18 °).
The utility model low cost of manufacture, good rigidly, vibrates minimum, and can guarantee that blower fan remains that under very wide applying working condition high efficiency state is run.
Claims (5)
1. a blower fan diffusion guide vane synchronous adjusting mechanism, comprise spiral case (1), gear-box flange (2), impeller (3), high speed shaft (5), diffusion guide blade (6), supporting location-plate (8), pivoted arm (11), synchronization steering dish (13) and drive rod (17), spiral case (1) and gear-box flange (2) are bolted, and supporting location-plate (8) is bolted in gear-box flange (2), supporting location-plate (8) center is through high speed shaft (5), high speed shaft (5) is matched in clearance with supporting location-plate (8), described high speed shaft (5) left end connects impeller (3) by fastening bolt (4), and impeller (3) is positioned at spiral case (1), and diffusion guide blade shaft rear end is provided with keyway, the rotating arm part of described pivoted arm is provided with keyway and locking slot, it is characterized in that: in supporting location-plate (8), be provided with multiple diffusion guide blade (6), multiple diffusion guide blade (6) is uniformly distributed along supporting location-plate (8) circumferencial direction, the guide vane teunnion portion (6.1) of multiple diffusion guide blade (6) is rotatably installed in supporting location-plate (8), the stator portion (6.2) of multiple diffusion guide blade (6) is positioned at the outer ring of spiral case (1) impeller (3), and the blade circumferencial direction of described multiple diffusion guide blade (6) is identical, synchronization steering dish (13) is provided with in gear-box flange (2), synchronization steering dish (13) is provided with and diffusion guide blade (6) multiple pivoted arm (11) one to one, multiple pivoted arm (11) is uniformly distributed along synchronization steering dish (13) circumferencial direction, the tumbler shaft portion (11.1) of multiple pivoted arm (11) is rotatably installed on synchronization steering dish (13), the rotating arm part of pivoted arm (11) to be connected with the guide vane teunnion portion keyway of diffusion guide blade by flat key locates, and by pivoted arm fastening bolt (10) locking, the axis that tumbler shaft portion central axis and the rotating arm part central axis of pivoted arm of each pivoted arm are formed is parallel to each other and direction is consistent, described gear-box flange (2) connects drive rod (17) by drive rod bearing (15), and drive rod (17) front end is provided with eccentric shaft (18), and eccentric shaft (18) connects the radial bearing (14) being positioned at synchronization steering dish (13).
2. a kind of blower fan diffusion guide vane synchronous adjusting mechanism as claimed in claim 1, is characterized in that: be provided with stator axle sleeve (7) between described guide vane teunnion portion (6.1) and supporting location-plate (8).
3. a kind of blower fan diffusion guide vane synchronous adjusting mechanism as claimed in claim 1, is characterized in that: described diffusion guide blade (6) is 9 ~ 21.
4. a kind of blower fan diffusion guide vane synchronous adjusting mechanism as claimed in claim 1, is characterized in that: be provided with pivoted arm axle sleeve (12) between described tumbler shaft portion (11.1) and synchronization steering dish (13).
5. a kind of blower fan diffusion guide vane synchronous adjusting mechanism as claimed in claim 1, is characterized in that: described drive rod bearing (15) outside is provided with bearing cover (16), and bearing cover (16) prevents drive rod bearing (15) separating tooth roller box flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386065.XU CN204299961U (en) | 2014-07-11 | 2014-07-11 | A kind of blower fan diffusion guide vane synchronous adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386065.XU CN204299961U (en) | 2014-07-11 | 2014-07-11 | A kind of blower fan diffusion guide vane synchronous adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299961U true CN204299961U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420386065.XU Expired - Lifetime CN204299961U (en) | 2014-07-11 | 2014-07-11 | A kind of blower fan diffusion guide vane synchronous adjusting mechanism |
Country Status (1)
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| CN (1) | CN204299961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106762797A (en) * | 2017-02-27 | 2017-05-31 | 南通大通宝富风机有限公司 | A kind of drainage system for vapour compression machine |
-
2014
- 2014-07-11 CN CN201420386065.XU patent/CN204299961U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106762797A (en) * | 2017-02-27 | 2017-05-31 | 南通大通宝富风机有限公司 | A kind of drainage system for vapour compression machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| 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 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: Wuxi Jieer Compressor Co., Ltd. |