CN101749270B - Impeller of centrifugal fan - Google Patents
Impeller of centrifugal fan Download PDFInfo
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- CN101749270B CN101749270B CN 201010111188 CN201010111188A CN101749270B CN 101749270 B CN101749270 B CN 101749270B CN 201010111188 CN201010111188 CN 201010111188 CN 201010111188 A CN201010111188 A CN 201010111188A CN 101749270 B CN101749270 B CN 101749270B
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- blade
- plate
- end plate
- riveting
- centrifugal blower
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Abstract
The invention relates to an impeller of centrifugal fan, comprising a front end plate, a rear end plate and blades which are prepared by adopting magnesium alloy; the front end plate and the rear end plate are arranged in parallel, the front end plate is opened with an air inlet, the rear end plate is provided with a connecting part axially connected with the output shaft of a drive motor, the blades are rotatably and fixedly arranged between the front end plate and the rear end plate in clockwise or counterclockwise, the adjacent blades form air flow channel, the air flow channel is communicated with the air inlet, the blade is riveted with the front and rear end plates. As the invention is made by magnesium alloy, weight is light, load of the drive motor is reduced, effective power of the centrifugal fan is improved, and energy consumption is reduced; as the blades are riveted with the front end plate and the rear end plate, connection is stable, structure strength is high, no crack defect can be easily produced when in use and use safety and service life of the centrifugal fan are improved.
Description
Technical field:
The present invention relates to the centrifugal blower technical field, particularly a kind of impeller of centrifugal blower.
Background technique:
Blower fan is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery, and by the direction of gas flow, blower fan roughly can be divided into axial-flow blower and centrifugal blower.Centrifugal blower is to be converted to the principle of potential energy according to kinetic energy, utilizes the impeller of High Rotation Speed that gas is accelerated, and then slows down, changes the flow direction, makes kinetic energy convert potential energy to, i.e. pressure.During centrifugal blower work, gas is from axially entering impeller, and gas flow changes over radially when impeller, then enters Diffuser.In Diffuser, gas and changing flow direction cause deceleration, this decelerating effect converts kinetic energy to pressure energy.
Impeller is the vitals of centrifugal blower, and its structural strength, deadweight all greatly affect the working efficiency of blower fan.Yet existing centrifugal blower fan blade wheel adopts the steel material manufacturing mostly, and weight is large, causes the drive motor load of centrifugal blower large, and capacity usage ratio is low; And wheel member adopts welding manner to be fixedly connected with mostly, and weld joint material speciality changes, and easily cracks or peels off in impeller High Rotation Speed process, affects safety in utilization and the working life of centrifugal blower.
Summary of the invention:
The object of the invention is to provides a kind of lightweight, the centrifugal blower fan blade wheel that structural strength is high for the deficiencies in the prior art.
Purpose of the present invention realizes by following technical measures:
A kind of impeller of centrifugal blower, it comprises front end-plate, end plate and the blade that all adopts the magnesium alloy preparation, described front end-plate and end plate be arranged in parallel, front end-plate offers intake grill, end plate is provided with the joint that is connected with the drive motor output shaft of centrifugal blower, blade is clockwise or is rotated counterclockwise and is fixedly installed between front end-plate and end plate, form air-flow path between adjacent two blades, described air-flow path is communicated with described intake grill, described blade front end is riveting in described front end-plate, and described blade rear end is riveting in described end plate.
Further technological scheme of the present invention comprises:
The mounting point of corresponding each blade of described front end-plate and end plate all offers the riveting groove of twice at least, it is prominent that the position of the corresponding described riveting groove of described blade is formed with the riveting that is complementary with described riveting groove, and described riveting is prominent passes corresponding riveting groove and bending and fit in described front end-plate or end plate surface.
Wherein, described riveting groove is the long strip riveting groove that distributes along described length of blade direction.
Further, described blade surface has guiding gutter along its length direction punching press.
Further, described blade strikes out circular shape, and the circular arc projection direction of blade is identical with the installation sense of rotation of blade.
According to above-described, the intake grill of described front end-plate is extruded with diversion division, and it is little that described diversion division is the front end bore, large horn-like of bottom bore, and described blade stretches in described diversion division.
Further, the edge punching press of described front end-plate has the current stabilization step of turnover forward, and the edge punching press of described end plate has the current stabilization step of turnover backward.
beneficial effect of the present invention is: the impeller of this centrifugal blower comprises the front end-plate that all adopts the magnesium alloy preparation, end plate and blade, described front end-plate and end plate be arranged in parallel, front end-plate offers intake grill, end plate is provided with the joint that is connected with the drive motor output shaft of centrifugal blower, blade is clockwise or is rotated counterclockwise and is fixedly installed between front end-plate and end plate, form air-flow path between adjacent two blades, described air-flow path is communicated with described intake grill, described blade front end is riveting in described front end-plate, described blade rear end is riveting in described end plate, because the front end-plate, end plate and the blade that consist of impeller all adopt magnesium alloy materials to make, lightweight, reduced the load of drive motor, improved the useful horsepower of centrifugal blower, reduced energy consumption, and due to described blade and front end-plate and end plate employing riveted joint, but not the Placement of welding can not cause the material of seam crossing to change, stable connection, structural strength is high, the defective, safety in utilization and the working life of having improved centrifugal blower such as is difficult for cracking in using process.
Description of drawings:
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not consist of any limitation of the invention.
Fig. 1 is the structural representation of the impeller of a kind of centrifugal blower of the present invention;
Fig. 2 is the structural representation of the impeller end plate of a kind of centrifugal blower of the present invention;
Fig. 3 is decomposing schematic representation of the present invention;
Fig. 4 is the decomposing schematic representation that the present invention is installed on centrifugal blower.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 comprise:
1---front end-plate 11---intake grill 12---diversion division
2---end plate 21---joint 3---blades
31---riveting 32---guiding gutter 4---riveting grooves of dashing forward
5---air-flow path 6---current stabilization step 7---drive motor
8---casing
Embodiment:
The present invention is further illustrated below in conjunction with accompanying drawing, sees Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, and this is preferred embodiment of the present invention:
a kind of impeller of centrifugal blower, it comprises the front end-plate 1 that all adopts the magnesium alloy preparation, end plate 2 and blade 3, described front end-plate 1 and end plate 2 be arranged in parallel, front end-plate 1 offers intake grill 11, end plate 2 is provided with the joint 21 that is connected with drive motor 7 output shafts of centrifugal blower, blade 3 is clockwise or is rotated counterclockwise and is fixedly installed between front end-plate 1 and end plate 2, form air-flow path 5 between adjacent two blades 3, described air-flow path 5 is communicated with described intake grill 11, described blade 3 front ends are riveting in described front end-plate 1, described blade 3 rear ends are riveting in described end plate 2.
As shown in Figure 4, the present invention is installed in casing 8, end plate 2 is connected with the output shaft of described drive motor 7, and during work, drive motor 7 starts, the impeller rotation, air enters impeller from described intake grill 11, and through the rotation of described blade 3, air-flow flows and changes air flow along described blade 3 is surperficial, and discharge impeller along described air-flow path 5, discharge centrifugal blower from the exhaust outlet of described casing 8 at last.Because the front end-plate 1, end plate 2 and the blade 3 that consist of impeller all adopt magnesium alloy materials to make, lightweight, reduced the load of drive motor 7, improved the useful horsepower of centrifugal blower, reduced energy consumption, and because described blade 3 and front end-plate 1 and end plate 2 adopt riveted joint, but not the Placement of welding can not cause the material of seam crossing to change, stable connection, structural strength is high, the defective, safety in utilization and the working life of having improved centrifugal blower such as is difficult for cracking in using process.
As shown in Figure 3, the mounting point of described front end-plate 1 and end plate 2 corresponding each blade 3 all offers the riveting groove 4 of twice at least, and the position of the corresponding described riveting groove 4 of described blade 3 is formed with the riveting prominent 31 that is complementary with described riveting groove 4.During assembling, described riveting prominent 31 is passed corresponding riveting groove 4 and bending and is fitted in described front end-plate 1 or end plate 2 surfaces.Described riveting groove 4 can adopt stamping forming mode to process, and riveting groove 4 cell wall place's degree of compaction raisings like this are difficult in using process because the collision that is in contact with one another with described riveting prominent 31 cracks, and connection reliability is high.Described riveting prominent 31 can adopt top width little, the shape that the root width is large, and riveting prominent 31 is one-body molded with described blade 3, guaranteed like this structural strength of riveting prominent 31, be difficult for producing the defectives such as fracture because of the stress that concentrates on prominent 31 roots of riveting in using process, long service life, join strength is high.
Wherein, described riveting groove 4 is the long strip riveting groove that distributes along described blade 3 length directions.Due to described riveting groove 4 along described blade 3 length direction settings, described riveting prominent 31 also correspondingly distributes along blade 3 length directions, this has guaranteed the length of prominent 31 roots of described riveting, and it is consistent to concentrate on the dash forward stress direction of 31 roots of riveting in the distribution arrangement of described riveting prominent 31 and using process, further improve prominent 31 join strengths in blade 3 ends of riveting, improved connection reliability.
See shown in Fig. 1,2,3, there is guiding gutter 32 on described blade 3 surfaces along its length direction punching press.On the one hand, with vane rotary, air-flow is interior along surperficial the flowing of described blade 3 at described air-flow path 5, and the flow direction of described guiding gutter 32 steering flows reduces the turbulent flow of air-flow in air-flow path 5, improves working efficiency of the present invention; On the other hand, take shape in described blade 3 surfaces because described guiding gutter 32 adopts stamping forming modes, blade 3 degree of compactions at described guiding gutter 32 places improve, and structural strength improves, and that is to say that described guiding gutter 32 has played the stiffening rib effect of reinforced blade 3 intensity.In course of working, can be at the surperficial punching press of blade 3 guiding gutter 32 of multiple tracks together or more, guiding gutter 32 quantity on each blade 3 are mainly decided according to blade 3 width, if punching press has twice or the above guiding gutter 32 of twice, the guiding gutter 32 on same blade 3 is parallel to each other.
As shown in Figure 3, described blade 3 strikes out circular shape, and the circular arc projection direction of blade 3 is identical with the installation sense of rotation of blade 3.The blade 3 of described circular arc more easily makes the air-flow that enters described air-flow path 5 form eddy current, thereby improves the capacity usage ratio of centrifugal blower.
See Fig. 2 and shown in Figure 3, the intake grill 11 of described front end-plate 1 is extruded with diversion division 12, and it is little that described diversion division 12 is the front end bore, large horn-like of bottom bore, and described blade 3 stretches in described diversion division 12.In the centrifugal blower working procedure, when air contacts the blade 3 of rotation, can produce because of the promotion of blade 3 flowing away from blade 3, at intake grill 11 places, this mobile air that will make away from blade 3 is discharged from intake grill 11, this will cause the air mass flow that enters casing 8 to reduce, and the useful horsepower of centrifugal blower reduces; The present invention sets into horn-like diversion division 12 young, that outlet is large at intake grill 11, the mobile air that promotes to produce away from blade 3 surfaces because of described blade 3 is stopped by described diversion division 12 inwalls, and be restrained in impeller, be unlikely to discharge casing 8, this has improved the useful horsepower of centrifugal blower.
See Fig. 1, Fig. 2, shown in Figure 3, the edge punching press of described front end-plate 1 has the current stabilization step 6 of turnover forward, and described end plate 2 edge punching presses have the current stabilization step 6 of turnover backward.Air-flow promotes and changes flow direction through blade 3, and discharges when of the present invention from the outlet of described air-flow path 5, can produce along sinuous flow at described front end-plate 1 and end plate 2 edges, thereby reduce the blast of casing 8 exhaust outlets.The current stabilization step 6 of described front end-plate 1 and end plate 2 is at described air-flow path 5 outlet ports formation bent angles, this bent angle makes the air-flow of discharging air-flow path 5 outlets discharge along the arc shaped surface of described bent angle, improve the stationarity that air-flow is discharged, improved the functional reliability of centrifugal blower.
Should be noted that at last; above embodiment is only in order to illustrate technological scheme of the present invention; but not limiting the scope of the invention; although with reference to preferred embodiment, the present invention has been done to explain; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technological scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (4)
1. the impeller of a centrifugal blower, it is characterized in that: it comprises the front end-plate that all adopts the magnesium alloy preparation, end plate and blade, described front end-plate and end plate be arranged in parallel, front end-plate offers intake grill, end plate is provided with the joint that is connected with the drive motor output shaft of centrifugal blower, blade is fixedly installed between front end-plate and end plate, described blade can be clockwise or be rotated counterclockwise, form air-flow path between adjacent two blades, described air-flow path is communicated with described intake grill, the blade front end is riveting in described front end-plate, the blade rear end is riveting in described end plate,
The mounting point of corresponding each blade of described front end-plate and end plate all offers the riveting groove of twice at least, it is prominent that the position of the corresponding described riveting groove of described blade is formed with the riveting that is complementary with described riveting groove, and described riveting is prominent passes corresponding riveting groove and bending and fit in described front end-plate or end plate surface;
Described riveting groove is the long strip riveting groove that distributes along described length of blade direction;
Blade surface has guiding gutter along its length direction punching press.
2. the impeller of a kind of centrifugal blower according to claim 1, it is characterized in that: described blade strikes out circular shape, and the circular arc projection direction of blade is identical with the installation sense of rotation of blade.
3. the impeller of a kind of centrifugal blower according to claim 1 and 2, it is characterized in that: the intake grill of described front end-plate is extruded with diversion division, and it is little that described diversion division is the front end bore, large horn-like of bottom bore, described blade stretches in described diversion division.
4. the impeller of a kind of centrifugal blower according to claim 3 is characterized in that: the edge punching press of described front end-plate has the current stabilization step of turnover forward, and the edge punching press of described end plate has the current stabilization step of turnover backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010111188 CN101749270B (en) | 2010-01-21 | 2010-01-21 | Impeller of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010111188 CN101749270B (en) | 2010-01-21 | 2010-01-21 | Impeller of centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749270A CN101749270A (en) | 2010-06-23 |
| CN101749270B true CN101749270B (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010111188 Expired - Fee Related CN101749270B (en) | 2010-01-21 | 2010-01-21 | Impeller of centrifugal fan |
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| Country | Link |
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| CN (1) | CN101749270B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104675748B (en) * | 2015-01-27 | 2017-04-05 | 浙江理工大学 | A kind of low noise with conduit is without spiral case centrifugal fan |
| CN105090111A (en) * | 2015-06-19 | 2015-11-25 | 苏州亚铨机械科技有限公司 | Novel movable impeller of motor |
| CN106704253A (en) * | 2016-12-02 | 2017-05-24 | 杭州三花家电热管理***有限公司 | Centrifugal impeller and dish-washing machine with same |
| TWI613370B (en) * | 2017-01-20 | 2018-02-01 | 湯秉輝 | Diversion structure |
| CN107524632A (en) * | 2017-07-22 | 2017-12-29 | 常州恒益电机有限公司 | The production method of tenon riveting impeller |
| CN109372797A (en) * | 2018-11-30 | 2019-02-22 | 深圳市商田环保科技有限公司 | A kind of impeller and the Multi-stage centrifugal fan using the impeller |
| CN109434393B (en) * | 2018-12-22 | 2023-08-22 | 江苏佳风风机科技有限公司 | Fan for conveying powder raw materials and manufacturing method thereof |
| CN110985437B (en) * | 2019-12-27 | 2021-01-08 | 温州盛淼工业设计有限公司 | Centrifugal fan impeller structure |
| DE102020133825A1 (en) * | 2020-12-16 | 2022-06-23 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Impeller with reinforcement ring |
| CN115977996A (en) * | 2023-03-17 | 2023-04-18 | 潍柴动力股份有限公司 | Impeller of air compressor, air compressor and turbocharger |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205399A (en) * | 1997-07-11 | 1999-01-20 | 株式会社日立制作所 | Motor-driven blower and method of manufacturing impeller for motor-driven blower |
| CN2457374Y (en) * | 2000-08-22 | 2001-10-31 | 大金工业株式会社 | Centrifugal fan |
| WO2008099854A1 (en) * | 2007-02-13 | 2008-08-21 | Daikin Industries, Ltd. | Impeller for fan |
| CN100453818C (en) * | 2006-03-03 | 2009-01-21 | 山东大学 | Technological process of making wing type centrifugal vane whell |
| CN201610861U (en) * | 2010-01-21 | 2010-10-20 | 东莞市金鑫智能机械设备有限公司 | Impeller of centrifugal fan |
-
2010
- 2010-01-21 CN CN 201010111188 patent/CN101749270B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205399A (en) * | 1997-07-11 | 1999-01-20 | 株式会社日立制作所 | Motor-driven blower and method of manufacturing impeller for motor-driven blower |
| CN2457374Y (en) * | 2000-08-22 | 2001-10-31 | 大金工业株式会社 | Centrifugal fan |
| CN100453818C (en) * | 2006-03-03 | 2009-01-21 | 山东大学 | Technological process of making wing type centrifugal vane whell |
| WO2008099854A1 (en) * | 2007-02-13 | 2008-08-21 | Daikin Industries, Ltd. | Impeller for fan |
| CN201610861U (en) * | 2010-01-21 | 2010-10-20 | 东莞市金鑫智能机械设备有限公司 | Impeller of centrifugal fan |
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| Publication number | Publication date |
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| CN101749270A (en) | 2010-06-23 |
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Owner name: DONGGUAN HUIRULAI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN JINXIN INTELLIGENT MACHINERY EQUIPMENT CO., LTD. Effective date: 20150401 |
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Effective date of registration: 20150401 Address after: 523000 Guangdong province Dongguan City Wanjiang river bed Cunmian vortex Patentee after: DONGGUAN HUIRULAI ELECTRIC ENERGY TECHNOLOGY CO., LTD. Address before: C industrial zone of Wanjiang District Guangdong Province Wan Hing Road 523050 Dongguan city Dongguan Jin Xin Intelligent Machinery Equipment Co Ltd Patentee before: Dongguan Jinxin Intelligent Machinery Equipment Co., Ltd. |
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