CN104847704A - Mechanical device for immediately adjusting installing angle of guide vane - Google Patents
Mechanical device for immediately adjusting installing angle of guide vane Download PDFInfo
- Publication number
- CN104847704A CN104847704A CN201510222307.0A CN201510222307A CN104847704A CN 104847704 A CN104847704 A CN 104847704A CN 201510222307 A CN201510222307 A CN 201510222307A CN 104847704 A CN104847704 A CN 104847704A
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- CN
- China
- Prior art keywords
- stator
- guide vane
- mechanical device
- prism
- adjusting axle
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
Abstract
The invention relates to a mechanical device for immediately adjusting an installing angle of a guide vane. The mechanical device can immediately play optimum performance under the different working conditions and has the advantages of being capable of saving effort in adjustment and convenient to user. According to the technical scheme, the mechanical device for immediately adjusting the installing angle of the guide vane comprises a guide vane hub located at the upstream position of a box, coaxial with the box and arranged in a fan housing and a plurality of guide vane blades evenly distributed on the outer circumferential face of the guide vane hub along the circumference and is characterized in that the guide vane blades are respectively and rotatably hinged to the outer circumferential face of the guide vane hub, an adjusting mechanism drives and controls rotating angles of the guide vane blades and comprises prism adjusting shafts capable of moving along the axis of the fan housing and provided with side prisms identical to the guide vane blades in number, groove block matching structures converting movements of the prism adjusting shafts into rotation of the guide vane blades around the hinge axis and an adjusting motor exerting axial thrust on the prism adjusting shafts.
Description
Technical field
The invention belongs to fluid control technology field, particularly relate to a kind of mechanical device of instant adjustment stator established angle.
Background technique
Rotating machinery is widely used in the departments such as electric power, petrochemical industry, metallurgy and Aero-Space.For axial-flow blower, for small hub or the little blower fan of power, usually adopt an impeller and no longer stator is set.This scheme because of structure simple, easily manufactured, so application wider.In the occasion that ask for something is higher, also need, on axial-flow blower, stator is installed, to improve the overall performance of blower fan.Wherein, pilot blade makes air-flow before entering impeller, produce negative prewhirling, and can change the adjustment efficiency of air quantity, blast, raising blower fan; Rear guide vane the airflow direction pivot of maneuver flowed out through impeller to, be static energy by the kinetic energy of deflect airflow simultaneously, significantly improve static pressure efficiency, improve the running usability of blower fan.
In actual applications, blade is just welded on wheel hub by stator usually in a pre-installation, and optimum embedding angle when its established angle is run under standard condition by rotating machinery is determined.But rotating machinery often needs to work under different operating mode, this just makes the stator established angle possibility also nonoptimal value of having fixed.If want to change stator established angle, usually need to shut down and replace the stator that established angle matches, doing like this and not only waste time and energy, often so, itself is also that one is consumed to machinery.
Therefore, in the urgent need to designing a kind of mechanical device of instant adjustment stator established angle, to realize under different operating mode, the object of rotating machinery optimum efficiency can immediately be reached.
Summary of the invention
The object of the invention is the deficiency overcoming above-mentioned background technology, provide a kind of mechanical device of instant adjustment stator established angle, this device immediately should be able to play optimum performance under different operating mode, and has the laborsaving feature easily of adjustment.
Technological scheme provided by the invention is: a kind of mechanical device of instant adjustment stator established angle, comprises and is positioned at casing upstream and is arranged in the stator wheel hub of fan casing with casing coaxial line, is circumferentially distributed on several stator blades of stator wheel hub outer peripheral surface; It is characterized in that several stator blades described are hinged on stator wheel hub outer peripheral surface respectively rotationally, separately have a controlling mechanism to drive and control the rotation angle of stator blade;
Described controlling mechanism comprises one and can move along fan casing axis and the incline quantity prism adjusting axle identical with stator blade quantity, the movement of prism adjusting axle is converted to the geosynclinal block cooperating structure that stator blade rotates around hinge axes and adjustment motor prism adjusting axle being applied to end thrust.
Described prism adjusting axle is positioned at stator hub inner lumen by a translation structure; This translation structure comprises and is arranged in stator hub inner lumen and is parallel to several slip poles of fan casing axis and is opened in prism adjusting axle right-hand member and the slide opening coordinated one by one with described slip pole.
In described geosynclinal block cooperating structure: the stator hinging shaft be connected as a single entity with stator blade passes stator wheel hub and fixes with a sliding sleeve after stretching into stator hub inner lumen, and the slide bar be slidably matched with this sliding sleeve is a hinged slide block also; Each side of described prism adjusting axle is all shaped with one with the length direction bevel of incline and the straight runner chimeric slidably with described slide block.
Described adjustment motor applies end thrust by a screw mechanism to prism adjusting axle; This screw mechanism comprises the screw that is produced on prism adjusting axle left end and is fixed on and regulates on motor output shaft and the screw rod coordinated with screw.
The inner chamber its right end face of described stator wheel hub also fixes the incline quantity prism sleeve identical with stator blade quantity; Its right end face of prism sleeve is manufactured with several and is beneficial to the perforation that slip pole passes through, and each side also makes a long chute vertical with incline length direction respectively, and described slide block embeds described straight runner after passing described long chute again.
Described stator hinging shaft axes normal also intersects at fan casing axis.
The stator hinging shaft axis of several stator blades described is all positioned at the same plane perpendicular to fan casing axis.
Described stator wheel hub is fixed in fan casing by blade carrier.
Working principle of the present invention following (see Fig. 1):
Switch on power, the impeller 9 of axial-flow blower starts to rotate; Change regulating and controlling motor 2 according to operating mode rotates, namely screw rod 10 fixing on its output shaft is driven, screw rod 10 is meshed with the interior threaded hole of prism adjusting axle 11 air intake (left end), and prism adjusting axle 11 is slid axially on 4 slip poles 17; The slide block 15 item hinged with slide bar is subject to the constraint of the straight runner of prism adjusting axle 11 side and the long chute of prism sleeve 18 side, simultaneously along straight runner and long slide; As a result, slide bar is driven and is slidably matched with sliding sleeve, drives again sliding sleeve around stator hinging shaft axis oscillating simultaneously, starts to regulate the established angle of the stator blade 5 fixed with sliding sleeve.When reaching the peak efficiency of axial-flow blower under this operating mode, regulating and controlling motor 2 stops operating, thus achieves the instant object regulating stator established angle.
The invention has the beneficial effects as follows:
Owing to regulating stator established angle as required, thus change air quantity, blast, improve the static pressure efficiency of blower fan, make it under different operating mode, immediately play optimum performance, thus significantly improve the running usability of blower fan, improve the working efficiency of blower fan; And when regulating, only need enable adjustment motor, not only regulate laborsaving convenience, can also degree of regulation be guaranteed, meet the needs of users.
Accompanying drawing explanation
Fig. 1 is mounting point of the present invention schematic diagram.
Fig. 2 is sectional structure schematic diagram of the present invention (removing the view after part stator wheel hub and part prism sleeve).
Fig. 3 is the perspective view (removing the view after part stator wheel hub and part prism sleeve) of annexation schematic diagram (remove and regulate motor, stator blade and prism adjusting axle) of pole and prism sleeve and stator wheel hub of sliding in the present invention.
Fig. 4 is one of perspective view of prism adjusting axle of the present invention.
Fig. 5 is the perspective view two of prism adjusting axle of the present invention.
Fig. 6 is the perspective view of prism sleeve of the present invention.
Fig. 7 is the perspective view that stator of the present invention regulates.
Embodiment
Below in conjunction with embodiment described in accompanying drawing (supporting with axial-flow blower), the invention will be further described.
As Figure 1-Figure 2, a mechanical device for instant adjustment stator established angle, comprises fan casing 1, regulates motor 2, stator wheel hub 3, blade carrier 4, stator blade 5, rotor electric machine 6, casing 7, casing support 8, impeller 9, screw rod 10, prism adjusting axle 11, stator hinging shaft 12, bearing pin 13, slide bar 14, slide block 15, sliding sleeve 16, slip pole 17 and prism sleeve 18.
In figure: casing 7 is fixed on the downstream (outlet air end) of the inner stator wheel hub 3 of fan casing 1 by casing support 8, ensure that impeller 9 is coaxial with blower fan runner; Rotor electric machine 6 is arranged in casing 7; The output shaft of rotor electric machine 6 is connected with the wheel hub of impeller 9, controls the rotation of impeller 9; The stator wheel hub 3 that stator blade 5 is housed is arranged on the upstream (air intake) of impeller.It is more than the conventional structure of axial-flow blower.
Improvement of the present invention is: several stator blades described are rotatably positioned respectively on stator wheel hub outer peripheral surface, and are driven by a controlling mechanism and control the rotation angle of stator blade.
Described controlling mechanism comprise one can along the prism adjusting axle 11 of fan casing axis movement, the movement of prism adjusting axle is converted to the geosynclinal block cooperating structure that stator blade rotates around hinge axes and the adjustment motor 2 prism adjusting axle being applied to end thrust.
It is inner that stator wheel hub 3 is fixed on fan casing 1 by blade carrier 4, ensures that stator wheel hub 3 is coaxial with blower fan runner; Motor is regulated to be fixed on the outside of stator wheel hub 3 air intake; Regulate the output shaft connecting screw rod 10 of motor.
As shown in Figure 3, described prism adjusting axle is positioned at stator hub inner lumen by a translation structure; This translation structure comprises and is arranged in stator wheel hub and is parallel to several slip poles 17 of fan casing axis and is opened in prism adjusting axle right-hand member and the slide opening 11-2 coordinated one by one with described slip pole.The right-hand member of slip pole 17 is fixed on the inner side end of stator wheel hub 3 outlet air end, as prism adjusting axle slideway in axial sliding; Thus many slip poles are selected can to alleviate the load of every root pole, 4 slip poles that the present embodiment is selected and in square arrangement, the axis of stator wheel hub 3 is through foursquare central point.
As shown in Figure 3, Figure 4, the incline quantity of prism adjusting axle 11 is identical with stator blade 5 quantity; Each side of prism adjusting axle 11 all have one with the straight runner 11-1 of incline length direction (being parallel to prism adjusting axle axis) bevel; This chute cross section is preferably " convex " shape, and the angle in straight runner and side length direction needs the scope controlled to determine by stator established angle; The air intake (left end) of prism adjusting axle 11 has an interior threaded hole 11-3, and be meshed with screw rod 10 (composition screw mechanism); The outlet air end of prism adjusting axle 11 has 4 slide opening 11-2, and slip pole 17 correspondingly through these slide openings, makes prism adjusting axle 11 can slide axially on slip pole respectively.
As shown in Figure 6, the incline quantity of described prism sleeve 18 is identical with stator blade 5 quantity; Each side of prism sleeve 18 is shaped with a long chute 18-1 perpendicular to incline length direction, and its right end face is shaped with the perforation 18-2 of bolt hole and 4 cooperation slip poles; The end face of prism sleeve is fixed on the inner side of stator wheel hub 3 outlet air end (right-hand member) end face by bolt, nut and compression spring, 4 slip poles, 17 difference, correspondingly through 4 perforation of end face, ensure that prism sleeve is parallel with the corresponding side surface of prism adjusting axle 11 and gap is consistent.
As shown in Figure 7, in described geosynclinal block cooperating structure: stator blade 5 is hinged on stator wheel hub outer peripheral surface, stator hinging shaft 12 radial direction is passed through stator wheel hub and is fixed with a sliding sleeve 16 after stretching into stator hub inner lumen; Slide bar 14 can insert in this sliding sleeve and be slidably matched, and its one end is also by bearing pin 13 hinged (hinge axes and slide bar axes normal) slide block 15; The lower end of described slide block 15 is cube 15-1, correspondingly with the straight runner 11-1 of prism adjusting axle 11 side be fitted together to and slide, and the cylindrical section 15-2 of slide block 15 upper end also interts in the long chute 18-1 of prism sleeve 18 side, slide block and slide bar can be slided accurately and stably in respective slideway.The regulation structure of each stator blade 5 should be completely the same, to reach the effect of synchronization regulation.
The above is a case study on implementation of the present invention, and unrestricted the scope of the claims of the present invention.Therefore, every according to technical spirit of the present invention, simple modification and various similar change are done to the present invention, includes within scope of patent protection of the present invention.
Claims (8)
1. the instant mechanical device regulating stator established angle, comprises and is positioned at casing (7) upstream and is arranged in the stator wheel hub (3) of fan casing (1) with casing coaxial line, is circumferentially distributed on several stator blades (5) of stator wheel hub outer peripheral surface; It is characterized in that several stator blades described are hinged on stator wheel hub outer peripheral surface respectively rotationally, separately have a controlling mechanism to drive and control the rotation angle of stator blade;
Described controlling mechanism comprises one and can move along fan casing axis and the incline quantity prism adjusting axle (11) identical with stator blade quantity, the movement of prism adjusting axle is converted to the geosynclinal block cooperating structure that stator blade rotates around hinge axes and the adjustment motor (2) prism adjusting axle being applied to end thrust.
2. the mechanical device of instant adjustment stator established angle according to claim 1, is characterized in that: described prism adjusting axle is positioned at stator hub inner lumen by a translation structure; This translation structure comprises and is arranged in stator hub inner lumen and is parallel to several slip poles (17) of fan casing axis and is opened in prism adjusting axle right-hand member and the slide opening (11-2) coordinated one by one with described slip pole.
3. the mechanical device of instant adjustment stator established angle according to claim 2, is characterized in that: described adjustment motor applies end thrust by a screw mechanism to prism adjusting axle; This screw mechanism comprises the screw (11-3) that is produced on prism adjusting axle left end and is fixed on and regulates on motor output shaft and the screw rod (10) coordinated with screw.
4. the mechanical device of the instant adjustment stator established angle according to Claims 2 or 3, it is characterized in that: in described geosynclinal block cooperating structure: the stator hinging shaft (12) be connected as a single entity with stator blade is fixed with a sliding sleeve (16) through stator wheel hub and after stretching into stator hub inner lumen, and the slide bar (14) be slidably matched with this sliding sleeve is a hinged slide block (15) also; Each side of described prism adjusting axle is all shaped with one with the length direction bevel of incline and the straight runner chimeric slidably with described slide block (11-1).
5. the mechanical device of instant adjustment stator established angle according to claim 4, is characterized in that: its right end face of described stator hub inner lumen also fixes the incline quantity prism sleeve (18) identical with stator blade quantity; The right side of prism sleeve is manufactured with several and is beneficial to the perforation (18-2) that slip pole passes through, each side also makes a long chute (18-1) vertical with incline length direction respectively, and described slide block embeds described straight runner again through after described long chute.
6. the mechanical device of instant adjustment stator established angle according to claim 5, is characterized in that: described stator hinging shaft axes normal also intersects at fan casing axis.
7. the mechanical device of instant adjustment stator established angle according to claim 6, is characterized in that: the stator hinging shaft axis of several stator blades described is all positioned at the same plane perpendicular to fan casing axis.
8. the mechanical device of instant adjustment stator established angle according to claim 7, is characterized in that: described stator wheel hub is fixed in fan casing by blade carrier (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222307.0A CN104847704B (en) | 2015-05-04 | 2015-05-04 | A kind of instant machinery adjusting stator established angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222307.0A CN104847704B (en) | 2015-05-04 | 2015-05-04 | A kind of instant machinery adjusting stator established angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847704A true CN104847704A (en) | 2015-08-19 |
| CN104847704B CN104847704B (en) | 2017-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510222307.0A Expired - Fee Related CN104847704B (en) | 2015-05-04 | 2015-05-04 | A kind of instant machinery adjusting stator established angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847704B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594198A (en) * | 2019-10-30 | 2019-12-20 | 辽宁工程技术大学 | Air inlet prerotator with adjustable blade angle |
| CN112901530A (en) * | 2021-01-28 | 2021-06-04 | 宁波方太厨具有限公司 | Air heater for cooking device and double-fan oven |
| CN114542515A (en) * | 2022-03-08 | 2022-05-27 | 大连海事大学 | Adjustable guide vane mechanism with series inlet |
| CN114963483A (en) * | 2021-02-20 | 2022-08-30 | 浙江盾安人工环境股份有限公司 | Liquid separator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3042191C1 (en) * | 1980-11-05 | 1982-04-01 | Gebrüder Sulzer AG, 8401 Winterthur | Adjustment device for the guide vanes of an axial compressor |
| JPS5859400A (en) * | 1981-10-02 | 1983-04-08 | Hitachi Ltd | Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor |
| CN2150372Y (en) * | 1992-09-28 | 1993-12-22 | 中国船舶工业总公司第七研究院第七○三研究所 | Rotating mechanism of guide-vane for fan |
| CN201568327U (en) * | 2009-12-29 | 2010-09-01 | 李宏业 | Axial flow fan |
| CN101922316A (en) * | 2009-01-06 | 2010-12-22 | 通用电气公司 | Variable position guide vane actuation system and method |
| CN202560636U (en) * | 2012-02-29 | 2012-11-28 | 北京建筑工程学院 | Electronically controlled rotary-blade-adjustable axial-flow fan |
| CN202811539U (en) * | 2012-07-27 | 2013-03-20 | 上海鼓风机厂有限公司 | Low-temperature fan inlet flow adjusting device |
| CN204755404U (en) * | 2015-05-04 | 2015-11-11 | 浙江理工大学 | Immediately, adjust mechanical device of stator clamping angle |
-
2015
- 2015-05-04 CN CN201510222307.0A patent/CN104847704B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3042191C1 (en) * | 1980-11-05 | 1982-04-01 | Gebrüder Sulzer AG, 8401 Winterthur | Adjustment device for the guide vanes of an axial compressor |
| JPS5859400A (en) * | 1981-10-02 | 1983-04-08 | Hitachi Ltd | Apparatus for varying setting angle of stator blades of multi-stage axial-flow compressor |
| CN2150372Y (en) * | 1992-09-28 | 1993-12-22 | 中国船舶工业总公司第七研究院第七○三研究所 | Rotating mechanism of guide-vane for fan |
| CN101922316A (en) * | 2009-01-06 | 2010-12-22 | 通用电气公司 | Variable position guide vane actuation system and method |
| CN201568327U (en) * | 2009-12-29 | 2010-09-01 | 李宏业 | Axial flow fan |
| CN202560636U (en) * | 2012-02-29 | 2012-11-28 | 北京建筑工程学院 | Electronically controlled rotary-blade-adjustable axial-flow fan |
| CN202811539U (en) * | 2012-07-27 | 2013-03-20 | 上海鼓风机厂有限公司 | Low-temperature fan inlet flow adjusting device |
| CN204755404U (en) * | 2015-05-04 | 2015-11-11 | 浙江理工大学 | Immediately, adjust mechanical device of stator clamping angle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594198A (en) * | 2019-10-30 | 2019-12-20 | 辽宁工程技术大学 | Air inlet prerotator with adjustable blade angle |
| CN110594198B (en) * | 2019-10-30 | 2020-10-16 | 辽宁工程技术大学 | Air inlet prerotator with adjustable blade angle |
| CN112901530A (en) * | 2021-01-28 | 2021-06-04 | 宁波方太厨具有限公司 | Air heater for cooking device and double-fan oven |
| CN114963483A (en) * | 2021-02-20 | 2022-08-30 | 浙江盾安人工环境股份有限公司 | Liquid separator |
| CN114963483B (en) * | 2021-02-20 | 2023-07-07 | 浙江盾安人工环境股份有限公司 | Liquid separator |
| CN114542515A (en) * | 2022-03-08 | 2022-05-27 | 大连海事大学 | Adjustable guide vane mechanism with series inlet |
| CN114542515B (en) * | 2022-03-08 | 2024-05-03 | 大连海事大学 | Series inlet adjustable guide vane mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104847704B (en) | 2017-03-01 |
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