CN101235827A - Blower fan integral wheel and method of manufacture - Google Patents
Blower fan integral wheel and method of manufacture Download PDFInfo
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- CN101235827A CN101235827A CNA2008100175890A CN200810017589A CN101235827A CN 101235827 A CN101235827 A CN 101235827A CN A2008100175890 A CNA2008100175890 A CN A2008100175890A CN 200810017589 A CN200810017589 A CN 200810017589A CN 101235827 A CN101235827 A CN 101235827A
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- integral wheel
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Abstract
The invention relates to the technical field of ventilators, in particular to a ventilator integral impeller and method for preparation. An impeller angle is not accurate, which is caused by the affect of many reasons which are machining error, blade installation angle measurement error, electric welding thermal deformation error and worker processing technical level and the like, thereby the intensity of a ventilator fan is reduced, the noise is increased, the work efficiency is low, the power consumption is large and the maintenance ratio is high. In order to overcome the above defects, the invention uses the technical scheme that the ventilator integral impeller comprises a blade, a hub, a spoke and a bearing sleeve, wherein the blade, the hub, the spoke and the bearing sleeve are a whole body which are connected together through casting in one time. The ventilator integral impeller is made through casting in one time, the problems which are common in processing of the impellers such as rosin joint and unclosed riveting and the like do not exist, the intensity is high, the security is excellent, the production cost is low, the energy consumption is saved, the environmental condition is improved, and the economic benefit is increased.
Description
Technical field
The present invention relates to the ventilator technical field, be specifically related to a kind of blower fan integral wheel and manufacture method thereof.
Background technique
The energy consumption of ventilator, noise and its core component---fan blade has direct relation, and blade technology has determined the final properties of ventilator.And the tiny deviation that produces on the Placement of ventilating vane and wheel hub, setting angle and the processing method process, performance that all can fan is brought significant impact.
The fan blade of existing ventilator is that each sheet fan blade is processed separately, gold is pulled in employing, welding, processing mode monolithic moulding such as die casting, because existing high blast, high every blade of air quantity ventilator fan and adjacent blades are all having overlapping along impeller shaft to direction projection, traditional die processing method can't be processed integral wheel, so blower fan manufacturer all adopts the independent moulding of blade to be fixed on the wheel hub by rivet welding technology more at present, this processing method is because wheel hub and blade separate machined, when carrying out gang welding, be subjected to machining error, blade installation angle measurement error, the electric welding thermal deformation errors, many cause influences such as workman's processing technique level can cause deformable blade, the blade angle inaccuracy, thus make the blower fan reduction in strength, it is big that noise becomes, inefficiency, power consumption is huge and maintenance rate is high.
Summary of the invention
The object of the present invention is to provide a kind of precision height, intensity is big, efficient is high, maintenance rate is low blower fan integral wheel.
Another object of the present invention is to provide a kind of manufacture method of blower fan integral body.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of blower fan integral wheel comprises blade 1, wheel hub 2, spoke 3, bearing housing 4, and its special way is: the integral body that described blade 1, wheel hub 2, spoke 3, bearing housing 4 form for the once casting that links together.
The blade that any one blade of above-mentioned impeller is adjacent is all having overlapping along impeller shaft to direction projection.
Above-mentioned blade 1 is the curved three-dimensional twisted blade of combination orthogonal type of plunderring.
The end projection and the blade 1 root projection angle of cut are acute angle relation on the above-mentioned blade 1.
The manufacture method of above-mentioned blower fan integral wheel, its step is as follows:
(1) make mould, its cavity shape is the curved three-dimensional twisted integral wheel of combination orthogonal type of plunderring;
(2) the cast gate casting in die cavity by mould;
(3) wax in the die cavity carries out the demoulding after solidifying, and concrete grammar is lifting while rotate, below this kind release method is called unscrewing type demoulding method, and this step obtains the wax model of an integral wheel.
(4) silica sand or pottery are covered on cured mould surface uniformly by Bond;
(5) put it into after the silica sand of wax model outer surface or pottery and the Bond sclerosis in the water of boiling and heat, purpose is to make the wax model dissolve outflow, and this step obtains a ghost by silica sand or the ceramic integral wheel shape that constitutes;
(6) the silica sand ghost is heated the mutual binding that makes solid particle by high temperature, grain growth, space (pore) and crystal boundary gradually reduce, and by the transmission of material, density increases, and becomes at last to have microstructural dense multicrystalline sintering body;
(7) molten steel with fusing is injected in the cavity of the silica sand ghost that step (6) obtains;
(8) treat molten steel cools after, remove quartzy arenaceous shell and promptly obtain final products.
Compared with prior art, advantage of the present invention is as follows:
The method that the present invention adopts has been saved the medium tache in the impeller production and processing, the controllable degree height, and design data is lost little in course of working.Once there is not common problem in the existing Impeller Machining such as rosin joint, riveted joint are not tight in the integral wheel that forms of casting, and intensity is big, and Security is good.Preparation process of the present invention is simple, low production cost.
Fan efficiency height, the noise of adopt the design of theory of the present invention and method, producing are low, compare with similar products at home and abroad, and its rated efficiency has improved 5%～10%, and actual operating efficiency on average improves 35%, reduce by 10～20dB than A sound level aerodynamic noise.All kinds of blower fans of using the designed production of this theory and method or undergoing technological transformation, energy saving consumption improves environmental condition, and the effect of increasing economic efficiency is remarkable.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Referring to Fig. 1, a kind of blower fan integral wheel comprises blade 1, wheel hub 2, spoke 3, bearing housing 4, the integral body that described blade 1, wheel hub 2, spoke 3, bearing housing 4 form for the once casting that links together.The blade that any one blade of described impeller is adjacent is all having overlappingly to direction projection along impeller shaft, state blade 1 and be the curved three-dimensional twisted blade of combination orthogonal type of plunderring, and the end projection and the blade 1 root projection angle of cut are acute angle relation on the blade 1.
The manufacture method of above-mentioned blower fan integral wheel, its step is as follows:
(1) make mould, its cavity shape is the curved three-dimensional twisted integral wheel of combination orthogonal type of plunderring;
(2) the cast gate casting in die cavity by mould;
(3) wax in the die cavity carries out the demoulding after solidifying, and concrete grammar is lifting while rotate, below this kind release method is called unscrewing type demoulding method, and this step obtains the wax model of an integral wheel.
(4) silica sand or pottery are covered on cured mould surface uniformly by Bond;
(5) put it into after the silica sand of wax model outer surface or pottery and the Bond sclerosis in the water of boiling and heat, purpose is to make the wax model dissolve outflow, and this step obtains a ghost by silica sand or the ceramic integral wheel shape that constitutes;
(6) the silica sand ghost is heated the mutual binding that makes solid particle by high temperature, grain growth, space (pore) and crystal boundary gradually reduce, and by the transmission of material, density increases, and becomes at last to have microstructural dense multicrystalline sintering body;
(7) molten steel with fusing is injected in the cavity of the silica sand ghost that step (6) obtains;
(8) treat molten steel cools after, remove quartzy arenaceous shell and promptly obtain final products.
The curved three-dimensional twisted Blade Design of combination orthogonal type of plunderring among the present invention is based on modern theories such as lumped parameter optimal control theory, distributed parameter optimal control theory, the positive and negative problem numerical simulation in full Three dimensional Turbulent flow field, with flow losses and aerodynamic noise minimum is target, by multi parameters control such as the curved amounts of plunderring of blade, utilize computer to carry out a kind of method comprehensively pneumatic, Optimal Structure Designing.Its key problem in technology be with before and after the most rational blade curved plunder and about curved combination abundance of plunderring control vertical with guaranteeing the fan airflow direction axially to cut with blower fan, with the pressure loss and the aerodynamic noise of minimizing air current flow with reaching limit.
In the pneumatic design and geometry designs of general axial fan, theoretical routinely, the curved amount of plunderring of dynamic and static blade is as design parameter, and when blade forming, only considers the strength condition of blade, and is folded along primitive leaf grating central product.This design method and blade forming method can't be controlled the velocity distribution of leaf road air-flow by the size and Orientation that changes BLADE FORCE, also just can't control effectively the separation, strength of vortex, secondary flow intensity etc. of air-flow in the runner relevant with flow losses time flow mobile.Curved design of plunderring the three-dimensional twisted blade high-efficient low-noise of combination orthogonal type propeller fan is based on modern theories such as lumped parameter optimal control theory, distributed parameter optimal control theory, the positive indirect problem numerical simulation in full Three dimensional Turbulent flow field, with flow losses and aerodynamic noise minimum is target, by multi parameters control such as the curved amounts of plunderring of blade, utilize computer to carry out a kind of design method comprehensively pneumatic, knot Bian optimal design.Its key problem in technology be with before and after the most rational blade curved plunder and about curved combination abundance of plunderring, control and guarantee that the moving direction of fan airflow is vertical with the blower fan axial cross section, reach the pressure loss and the aerodynamic noise that reduce air current flow to greatest extent.Relative general axis flow fan, its rated efficiency can improve about 10%, starts noise and can reduce by 15～20dB (A).
Claims (5)
1, a kind of blower fan integral wheel comprises blade (1), wheel hub (2), spoke (3), bearing housing (4), it is characterized in that: the integral body that described blade (1), wheel hub (2), spoke (3), bearing housing (4) form for the once casting that links together.
2, a kind of blower fan integral wheel according to claim 1 is characterized in that: the blade that any one blade of described impeller is adjacent is all having overlapping along impeller shaft to direction projection.
3, a kind of blower fan integral wheel according to claim 1 and 2 is characterized in that: described blade (1) is the curved three-dimensional twisted blade of combination orthogonal type of plunderring.
4, a kind of blower fan integral wheel according to claim 3 is characterized in that: described blade (1) is gone up end projection and blade (1) the root projection angle of cut is acute angle relation.
5, the manufacture method of a kind of blower fan integral wheel according to claim 1 is characterized in that: described manufacture method step is as follows:
(1) make mould, its cavity shape is the curved three-dimensional twisted integral wheel of combination orthogonal type of plunderring;
(2) the cast gate casting in die cavity by mould;
(3) wax in the die cavity carries out the demoulding after solidifying, and concrete grammar is lifting while rotate, below this kind release method is called unscrewing type demoulding method, and this step obtains the wax model of an integral wheel.
(4) silica sand or pottery are covered on cured mould surface uniformly by Bond;
(5) put it into after the silica sand of wax model outer surface or pottery and the Bond sclerosis in the water of boiling and heat, purpose is to make the wax model dissolve outflow, and this step obtains a ghost by silica sand or the ceramic integral wheel shape that constitutes;
(6) the silica sand ghost is heated the mutual binding that makes solid particle by high temperature, grain growth, space (pore) and crystal boundary gradually reduce, and by the transmission of material, density increases, and becomes at last to have microstructural dense multicrystalline sintering body;
(7) molten steel with fusing is injected in the cavity of the silica sand ghost that step (6) obtains;
(8) treat molten steel cools after, remove quartzy arenaceous shell and promptly obtain final products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100175890A CN101235827A (en) | 2008-03-03 | 2008-03-03 | Blower fan integral wheel and method of manufacture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100175890A CN101235827A (en) | 2008-03-03 | 2008-03-03 | Blower fan integral wheel and method of manufacture |
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| CN101235827A true CN101235827A (en) | 2008-08-06 |
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| CNA2008100175890A Pending CN101235827A (en) | 2008-03-03 | 2008-03-03 | Blower fan integral wheel and method of manufacture |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728787A (en) * | 2012-07-23 | 2012-10-17 | 宁波霍思特精密机械有限公司 | Precise casting method of guide vane of solar generator |
| CN103100664A (en) * | 2012-12-31 | 2013-05-15 | 天津华易隆精密铸造有限公司 | Guide impeller production process |
| CN103114970A (en) * | 2013-03-15 | 2013-05-22 | 江苏中蕴风电科技有限公司 | Coupling-type wind driven generator |
| CN103170581A (en) * | 2011-12-22 | 2013-06-26 | 杭州恒力泵业制造有限公司 | Corrosion-resistant impeller casting process |
| CN103433435A (en) * | 2013-08-13 | 2013-12-11 | 苏州欧拉工程技术有限公司 | Manufacturing process of overall titanium alloy impeller |
| CN103658536A (en) * | 2014-01-06 | 2014-03-26 | 山东建筑大学 | Fired mold low-pressure casting process of integral type compressor impeller |
| CN103949864A (en) * | 2014-04-04 | 2014-07-30 | 上海第一水泵厂有限公司 | Method for processing continuously cut blade |
| CN108555237A (en) * | 2018-04-18 | 2018-09-21 | 常州环能涡轮动力股份有限公司 | The preparation method of turbine and turbine wax-pattern |
| CN108799197A (en) * | 2018-05-31 | 2018-11-13 | 珠海格力精密模具有限公司 | The method of blade structure, air conditioner and blade structure detection |
| CN109047660A (en) * | 2018-07-20 | 2018-12-21 | 珠海格力电器股份有限公司 | Impeller full form casting process, impeller and centrifugal compressor |
| CN111894897A (en) * | 2020-08-06 | 2020-11-06 | 佛山市南海区绿智电机设备有限公司 | Impeller for centrifugal fan and preparation equipment and preparation method thereof |
| CN112974734A (en) * | 2021-02-03 | 2021-06-18 | 西安科技大学 | Manufacturing method of integrally formed swept combined blade |
| CN115194091A (en) * | 2022-09-17 | 2022-10-18 | 泊头市亚奇铸业有限公司 | Sand casting device for blade castings |
-
2008
- 2008-03-03 CN CNA2008100175890A patent/CN101235827A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170581A (en) * | 2011-12-22 | 2013-06-26 | 杭州恒力泵业制造有限公司 | Corrosion-resistant impeller casting process |
| CN103170581B (en) * | 2011-12-22 | 2016-07-27 | 杭州恒力泵业制造有限公司 | A kind of corrosion-resistant pump vane casting technique |
| CN102728787A (en) * | 2012-07-23 | 2012-10-17 | 宁波霍思特精密机械有限公司 | Precise casting method of guide vane of solar generator |
| CN102728787B (en) * | 2012-07-23 | 2013-09-25 | 宁波霍思特精密机械有限公司 | Precise casting method of guide vane of solar generator |
| CN103100664A (en) * | 2012-12-31 | 2013-05-15 | 天津华易隆精密铸造有限公司 | Guide impeller production process |
| CN103114970A (en) * | 2013-03-15 | 2013-05-22 | 江苏中蕴风电科技有限公司 | Coupling-type wind driven generator |
| CN103433435B (en) * | 2013-08-13 | 2015-05-13 | 苏州欧拉工程技术有限公司 | Manufacturing process of overall titanium alloy impeller |
| CN103433435A (en) * | 2013-08-13 | 2013-12-11 | 苏州欧拉工程技术有限公司 | Manufacturing process of overall titanium alloy impeller |
| CN103658536A (en) * | 2014-01-06 | 2014-03-26 | 山东建筑大学 | Fired mold low-pressure casting process of integral type compressor impeller |
| CN103949864A (en) * | 2014-04-04 | 2014-07-30 | 上海第一水泵厂有限公司 | Method for processing continuously cut blade |
| CN108555237A (en) * | 2018-04-18 | 2018-09-21 | 常州环能涡轮动力股份有限公司 | The preparation method of turbine and turbine wax-pattern |
| CN108799197A (en) * | 2018-05-31 | 2018-11-13 | 珠海格力精密模具有限公司 | The method of blade structure, air conditioner and blade structure detection |
| CN108799197B (en) * | 2018-05-31 | 2024-05-07 | 珠海格力精密模具有限公司 | Fan blade structure, air conditioner and method for detecting fan blade structure |
| CN109047660A (en) * | 2018-07-20 | 2018-12-21 | 珠海格力电器股份有限公司 | Impeller full form casting process, impeller and centrifugal compressor |
| CN109047660B (en) * | 2018-07-20 | 2019-07-05 | 珠海格力电器股份有限公司 | Impeller full form casting process, impeller and centrifugal compressor |
| CN111894897A (en) * | 2020-08-06 | 2020-11-06 | 佛山市南海区绿智电机设备有限公司 | Impeller for centrifugal fan and preparation equipment and preparation method thereof |
| CN112974734A (en) * | 2021-02-03 | 2021-06-18 | 西安科技大学 | Manufacturing method of integrally formed swept combined blade |
| CN112974734B (en) * | 2021-02-03 | 2023-03-10 | 西安科技大学 | Manufacturing method of integrally formed swept combined blade |
| CN115194091A (en) * | 2022-09-17 | 2022-10-18 | 泊头市亚奇铸业有限公司 | Sand casting device for blade castings |
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Open date: 20080806 |