CN107542699A - The manufacture method of centrifugation blade, centrifugal blower and centrifugation blade - Google Patents
The manufacture method of centrifugation blade, centrifugal blower and centrifugation blade Download PDFInfo
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- CN107542699A CN107542699A CN201710788799.9A CN201710788799A CN107542699A CN 107542699 A CN107542699 A CN 107542699A CN 201710788799 A CN201710788799 A CN 201710788799A CN 107542699 A CN107542699 A CN 107542699A
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- 238000005119 centrifugation Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000000465 moulding Methods 0.000 claims description 21
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention provides the manufacture method of a kind of centrifugation blade, centrifugal blower and centrifugation blade, wherein, centrifugation blade includes：Wheel hub；Blade, it is arranged on wheel hub；Denoising structure, it is arranged on blade, denoising structure is used to contact with gas to reduce caused noise between gas and blade.By technical scheme provided by the invention, the problem of centrifugation blade noise of the prior art is big can solve the problem that.
Description
Technical field
The present invention relates to centrifugal blower technical field, in particular to a kind of centrifugation blade, centrifugal blower and centrifugation wind
The manufacture method of leaf.
Background technology
Centrifugal blower by the rotational band of centrifugation blade take offence body flow, so as to realize exhaust, ventilation, cooling etc. function.
Centrifugal blower is widely used in the equipment such as air conditioner, vehicle, or applied to occasions such as factory, mines.In the prior art, wind is centrifuged
There is larger noise in the centrifugation blade in machine, influence the usage experience of user when rotating.
The content of the invention
The present invention provides the manufacture method of a kind of centrifugation blade, centrifugal blower and centrifugation blade, to solve prior art
In centrifugation blade noise it is big the problem of.
In order to solve the above problems, according to an aspect of the present invention, the invention provides a kind of centrifugation blade, including：
Wheel hub；Blade, it is arranged on wheel hub；Denoising structure, it is arranged on blade, denoising structure is used to contact with gas to reduce gas
The caused noise between blade.
Further, denoising structure includes：Multiple first is raised, and multiple first bulge clearances are arranged on blade.
Further, denoising structure includes：Multiple first grooves, multiple first grooves are disposed on blade.
Further, blade has windward side and leeward side, and windward side is used to promote gas to flow, and denoising structure is arranged on
Windward side.
Further, windward side is arcwall face, inner recess of the arcwall face towards blade.
Further, blade is multiple that multiple blades are circumferentially positioned on wheel hub along the axis of wheel hub.
According to another aspect of the present invention, there is provided a kind of centrifugal blower, including drive shaft and centrifugation blade, centrifugation blade
Wheel hub with driving axis connection, wherein, centrifugation blade be above-mentioned offer centrifugation blade.
According to another aspect of the invention, there is provided a kind of manufacture method of centrifugation blade, comprise the following steps successively：Step
Rapid S10：Make mould；Step S20：Molding structure is produced in the mold cavity surface of mould；Step S40：Made by Shooting Technique
With Mold Making centrifugation blade, the centrifugation blade produced be above-mentioned offer centrifugation blade, wherein, molding structure produce from
The denoising structure of heart fan blade.
Further, in step S20, shaping is made by etching process or anode oxidation process or laser technique
Structure.
Further, in step S20, molding structure is multiple second grooves for producing of mold cavity surface in mould,
In step s 40, multiple first projections are produced on the blade of centrifugation blade by multiple second grooves；And/or in step
In S20, molding structure is multiple second projections produced in the mold cavity surface of mould, in step s 40, it is raised to pass through second
Multiple first grooves are produced on the blade of centrifugation blade.
Further, in step S20 when the mold cavity surface of mould makes multiple second grooves, successively including following step
Suddenly：Step S21：Diaphragm with multiple through holes is attached to the mold cavity surface of mould；Step S22：Sprayed on diaphragm rotten
Lose liquid；Step S23：Corrosive liquid contacts with the mold cavity surface of mould into through hole and corrodes mold cavity surface, when being spaced one section
Between after mold cavity surface formed evidence of corrosion；Step S24：Take diaphragm off from mould and clean mould.
Further, sequential operation multiple step S21 to step S24, until evidence of corrosion forms multiple second grooves.
Further, had steps of between step S20 and step S40：Step S30：The quality of mould is checked, if
Mould meets production requirement, then into step S40, if mould is unsatisfactory for production requirement, returns to step S20.
Further, step S40 comprises the following steps：Step S41：Centrifugation blade is produced as a trial using mould；Step S42：
The quality of centrifugation blade is checked, if centrifugation blade meets quality requirement, produces centrifugation blade in enormous quantities, if centrifugation blade is discontented with
Sufficient quality requirement, then return to step S20.
Apply the technical scheme of the present invention, denoising structure is provided with the blade of centrifugation blade, blade pushes away when rotating
Body of taking offence flows, and denoising structure contacts the impact that can reduce gas and blade with the gas flowed, so as to reduce gas or leaf
The noise of piece.Moreover, when manufacturing centrifugation blade, molding structure is produced by the mold cavity surface in mould, can centrifuged
Denoising structure is produced in fan blade.Therefore, by technical scheme, it can solve the problem that centrifugation blade of the prior art is made an uproar
The problem of sound is big.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of centrifugation blade provided by the invention；
Fig. 2 shows a structural representation of the denoising structure in centrifugation blade；
Fig. 3 shows another structural representation of the denoising structure in centrifugation blade；
Fig. 4 shows the another structural representation of the denoising structure in centrifugation blade；
Fig. 5 shows the side view of the centrifugation blade in Fig. 1；
Fig. 6 shows the sectional view of the centrifugation blade in Fig. 5.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, wheel hub；11st, supporting plate；12nd, axle sleeve；13rd, reinforcement；20th, blade；30th, denoising structure；31st, first is raised；
32nd, the first groove；40th, support ring.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
As shown in Figures 1 to 6, the embodiment provides a kind of centrifugation blade, the centrifugation blade include wheel hub 10,
Blade 20 and denoising structure 30.Wherein, wheel hub 10 can be with driving axis connection, and blade 20 is arranged on wheel hub 10.Denoising structure 30
It is arranged on blade 20, denoising structure 30 is used to contact with gas to reduce caused noise between gas and blade 20.
Using the technical scheme of the present embodiment, denoising structure 30 is provided with the blade 20 of centrifugation blade, blade 20 exists
Gas flowing is promoted during rotation, denoising structure 30 contacts the impact that can reduce gas and blade 20 with the gas flowed, so as to
Reduce the noise of gas or blade 20.Therefore, by the technical scheme of the present embodiment, it can solve the problem that centrifugation wind of the prior art
The problem of leaf noise is big.
Specifically, in the present embodiment, denoising structure 30 can be arranged to concaveconvex structure, concaveconvex structure can include recessed
Groove or projection, or include groove and projection simultaneously.
As shown in Fig. 2 denoising structure 30 includes multiple first projections 31, multiple first projections 31 are disposed on blade 20
On.By being arranged at intervals multiple first projections 31 on blade 20, the surface that blade 20 contacts with gas is changed into non-smooth surface.
When rotating, non-smooth surface contacts blade 20 with gas, compared with smooth surface, can alleviate gas rushing to blade 20
Hit, so as to reduce the vibration of blade 20, and then reduce noise caused by blade 20 or gas., can be with order to improve noise reduction
Reduce the spacing between the first projection 31, to set greater number of first projection 31 on blade 20.The technology of the present embodiment
Scheme is versatile, can apply to the centrifugation blade of different sizes or different model.
As shown in figure 3, denoising structure 30 includes multiple first grooves 32, multiple first grooves 32 are disposed on blade 20
On.By being arranged at intervals multiple first grooves 32 on blade 20, the surface that blade 20 contacts with gas is changed into non-smooth surface.
When rotating, non-smooth surface contacts blade 20 with gas, compared with smooth surface, can alleviate gas rushing to blade 20
Hit, so as to reduce the vibration of blade 20, and then reduce noise caused by blade 20 or gas., can be with order to improve noise reduction
Reduce the spacing between the first groove 32, to set greater number of first groove 32 on blade 20.The technology of the present embodiment
Scheme is versatile, can apply to the centrifugation blade of different sizes or different model.
As shown in figure 4, denoising structure 30 includes the multiple first projections 31 and multiple first grooves 32, multiple first projections 31
It is disposed on multiple first grooves 32 on blade 20.Wherein, the first projection 31 and the first groove 32 can be arranged at intervals, example
Such as, around the first projection 31 it is the first groove 32, is the first projection 31 around the first groove 32.Multiple first raised 31 Hes
Multiple first grooves 32 can be uniformly arranged on blade 20 according to certain rules, so can further improve noise reduction.It is more
Individual first projection 31, multiple first grooves 32 and the surface between them are collectively forming non-smooth surface.Blade 20 is rotating
When, non-smooth surface contacts with gas, compared with smooth surface, can alleviate impact of the gas to blade 20, so as to reduce leaf
The vibration of piece 20, and then reduce noise caused by blade 20 or gas.In order to improve noise reduction, can be set on blade 20
Greater number of first projection 31 and the first groove 32.The technical scheme of the present embodiment is versatile, can apply to different chis
Very little or different model centrifugation blade.
Specifically, in the present embodiment, blade 20 has windward side and leeward side, and wherein windward side is used to promote gas stream
Dynamic, denoising structure 30 is arranged on windward side.By the way that denoising structure 30 to be arranged on to the windward side of blade 20 rather than is arranged on blade
20 whole surface, the manufacturing cost of centrifugation blade can be reduced while noise reduction is ensured.
Wherein, the windward side of blade 20 is arcwall face, inner recess of the arcwall face towards blade 20.By the windward side of blade 20
Arcwall face is arranged to, on the one hand can improve the air output of centrifugation blade, on the other hand the flowing of gas can be oriented to,
So as to improve the operating efficiency of centrifugation blade and in the direction air-out of needs.
In order to further improve the air output of centrifugation blade, in the present embodiment, blade 20 is arranged to multiple, Duo Geye
Axis of the piece 20 along wheel hub 10 is circumferentially positioned on wheel hub 10.And there is gap, blade 20 between two adjacent blades 20
Between gap be used for air intake or air-out.Moreover, along the circumferencial direction of wheel hub 10, the windward side of blade 20 is set in the same direction
Put.It is arranged such, wheel hub 10 can drive multiple blades 20 to rotate when rotating, and continuously be sent so as to be realized by multiple blades 20
Wind.Manufacture for the ease of centrifugation blade and ensure the uniform of air quantity, multiple blades 20 can be arranged to identical structure.
Specifically, wheel hub 10 includes supporting plate 11 and axle sleeve 12, wherein, axis of multiple blades 20 along supporting plate 11 is surround
It is arranged in supporting plate 11.It is arranged such and multiple blades 20 can be linked together by supporting plate 11, so as to increases centrifugation
The structural strength of fan blade.Axle sleeve 12 is arranged on the middle part of supporting plate 11, and the axis of axle sleeve 12 and the axis weight of supporting plate 11
Close.Axle sleeve 12 can be arranged on the driving shaft, and the rotation of centrifugation blade is realized by the rotation of drive shaft.
In order to improve the structural strength of centrifugation blade, in the present embodiment, wheel hub 10 also includes reinforcement 13, reinforcement 13
It is arranged between supporting plate 11 and axle sleeve 12.By setting reinforcement 13 to improve the structural strength of centrifugation blade, so as to carry
The bearing capacity and service life of high centrifugation blade.Moreover, increase the structural strength of centrifugation blade in the form of reinforcement, can
The material usage of centrifugation blade is reduced, so as to weight that is cost-effective and reducing centrifugation blade.In the present embodiment, reinforcement 13
To be multiple, multiple reinforcements 13 are arranged between supporting plate 11 and axle sleeve 12 around the axis of axle sleeve 12, so can be further
Improve the structural strength of centrifugation blade.
As shown in Figure 5 and Figure 6, the diameter parallel of blade 20 and wheel hub 10, and the both sides of wheel hub 10 are provided with blade
20.It is arranged such, so as to improve the intake of centrifugation blade, correspondingly, can be also improved in the both sides of wheel hub 10 while air intake
The air output of centrifugation blade.
As shown in figure 5, centrifugation blade also includes support ring 40, the axis of support ring 40 overlaps with the axis of wheel hub 10, leaf
One end of piece 20 is connected with support ring 40, and the other end of blade 20 is connected with wheel hub 10.Be arranged such can further improve from
The structural strength of heart fan blade, the vibration of blade 20 on the one hand can be reduced when blade 20 rotates, so as to reduce centrifugation blade
Noise, it on the other hand can extend the service life of centrifugation blade.
Another embodiment of the present invention provides a kind of centrifugal blower, and centrifugal blower includes drive shaft and centrifugation blade, from
The wheel hub 10 of heart fan blade and driving axis connection, wherein, centrifugation blade is the centrifugation blade that above-described embodiment provides.Using this implementation
The technical scheme of example, denoising structure 30 being provided with the blade 20 of centrifugation blade, blade 20 promotes gas flowing when rotating,
Denoising structure 30 contacts with the gas flowed can reduce the impact of gas and blade 20, so as to reduce making an uproar for gas or blade 20
Sound.Therefore, by the technical scheme of the present embodiment, it can solve the problem that the problem of centrifugation blade noise of the prior art is big.
Specifically, in the present embodiment, denoising structure 30 could be arranged to include multiple first projections 31 and multiple first
Groove 32, multiple first projections 31 and multiple first grooves 32 are disposed on blade 20.Wherein, the first projection 31 and first
Groove 32 can be arranged at intervals, and be first convex around the first groove 32 for example, being the first groove 32 around the first projection 31
Play 31.Multiple first projections 31 and multiple first grooves 32 can be uniformly arranged on blade 20 according to certain rules, so can be with
Further improve noise reduction.Multiple first projections 31, multiple first grooves 32 and the surface between them are collectively forming non-
Smooth surface.When rotating, non-smooth surface contacts blade 20 with gas, compared with smooth surface, can alleviate gas to leaf
The impact of piece 20, so as to reduce the vibration of blade 20, and then reduce noise caused by blade 20 or gas.In order to improve noise reduction effect
Fruit, greater number of first projection 31 and the first groove 32 can be set on blade 20.The technical scheme of the present embodiment is general
Property is strong, can apply to the centrifugal blower of different sizes or different model.
In order to reduce the manufacturing cost of centrifugation blade, Shooting Technique can be used to make centrifugation blade, using Shooting Technique
The more complicated centrifugation blade of structure can be produced, and production in enormous quantities can be realized, therefore the drop of centrifugation blade can improved
While ability of making an uproar and draft capacity, the manufacturing cost of centrifugation blade is reduced.
Another embodiment of the present invention provides a kind of manufacture method of centrifugation blade, and the manufacture method includes following successively
Step：
Step S10：Make mould；
Step S20：Molding structure is produced in the mold cavity surface of mould；
Step S40：Mold Making centrifugation blade is used by Shooting Technique, the centrifugation blade produced is above-described embodiment
In centrifugation blade, wherein, the shape and the shape of denoising structure 30 of molding structure match, molding structure be used for produce from
The denoising structure 30 of heart fan blade.
Molding structure can be produced in the mold cavity surface of mould by the manufacture method, so as to be made in centrifugation blade
Go out denoising structure 30, and then can be reduced by denoising structure 30 and be made an uproar caused by the blade 20 of centrifugation blade or the gas of flowing
Sound.
Wherein, in step S20, molding structure can be made by kinds of processes, for example, etching process or sun can be passed through
Pole oxidation technology or laser technique make molding structure.Which kind of specifically used technique, need to be combined in actual production cost,
The combined factors such as quality, benefit consider.
Specifically, in step S20, molding structure is multiple second grooves for producing of mold cavity surface in mould, and
And second the shape of shape and the first projection 31 of groove match, can so pass through multiple second grooves in step s 40
Multiple first projections 31 are produced on the blade 20 of centrifugation blade.Or in step S20, molding structure is the type in mould
Multiple second projections that chamber surface is produced, and the second raised shape and the shape of the first groove 32 matches, and so may be used
To produce multiple first grooves 32 on the blade 20 of centrifugation blade by the second projection in step s 40.Can also will be into
Type structure setting is simultaneously comprising multiple second groove and multiple second raised, denoising structures for the centrifugation blade so produced
30 can be simultaneously comprising the multiple first projections 31 and multiple first grooves 32, so as to improve the noise reduction of centrifugation blade.
In the present embodiment, when making multiple second grooves in the mold cavity surface of mould in step S20, using corrosion
Technique makes the second groove, specifically comprises the following steps successively：
Step S21：Diaphragm with multiple through holes is attached to the mold cavity surface of mould；
Step S22：Corrosive liquid is sprayed on diaphragm；
Step S23：Corrosive liquid contacts with the mold cavity surface of mould into through hole and corrodes mold cavity surface, when being spaced one section
Between after mold cavity surface formed evidence of corrosion；
Step S24：Take diaphragm off from mould and clean mould.
Mould can be made with relatively low cost by being arranged such, and can control the precision of the second groove, so as to improve system
The precision of first projection 31 of the centrifugation blade made.
, can be with the multiple step S21 of sequential operation to step S24 in order to further improve the precision of the second groove, and control
The amount of the corrosive liquid sprayed every time, it so can progressively expand evidence of corrosion, until evidence of corrosion forms multiple second grooves.
The precision of the second groove so can be accurately controlled, prevents from influenceing the quality of centrifugation blade because error is larger.
Moreover, had steps of between step S20 and step S40：
Step S30：The quality of mould is checked, if mould meets production requirement, into step S40, if mould is unsatisfactory for
Production requirement, then return to step S20.
Wherein, the quality of the higher molding structure of required precision is mainly checked when detecting mould, if the quality of molding structure
Production requirement can not be met, then return to step S20 and be improved.It is of course also possible to the other positions of mould that detect
Problem is improved.After mould meets production requirement, mould production centrifugation blade can be used.
Specifically, comprise the following steps in step s 40：
Step S41：Centrifugation blade is produced as a trial using mould；
Step S42：The quality of centrifugation blade is checked, if centrifugation blade meets quality requirement, produces centrifugation wind in enormous quantities
Leaf, if centrifugation blade is unsatisfactory for quality requirement, return to step S20.
In the present embodiment, the higher part of quality requirement is the denoising structure 30 of centrifugation blade in centrifugation blade.In order to true
The quality for the centrifugation blade produced is protected, first produces centrifugation blade as a trial using mould, then checks the quality of centrifugation blade, wherein
The main quality for checking denoising structure 30, if centrifugation blade meets quality requirement, produces centrifugation blade in enormous quantities, if centrifugation wind
Leaf is unsatisfactory for quality requirement, then returns to step S20 and molding structure is improved.Be arranged such, can reduce produce from
The percent defective of heart fan blade, ensure the quality of centrifugation blade, so as to ensure the noise reduction of centrifugation blade.
The manufacture method provided by the present embodiment, can be with relatively low cost, higher precision and convenient, flexible behaviour
The centrifugation blade of high quality is produced as property, so as to reduce the noise of centrifugation blade in the running.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to the proportionate relationship of reality.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
In the description of the invention, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, vertical,
Vertically, orientation or position relationship indicated by level " and " top, bottom " etc. are normally based on orientation or position shown in the drawings and closed
System, it is for only for ease of the description present invention and simplifies description, in the case where not making opposite explanation, these nouns of locality do not indicate that
There must be specific orientation with the device or element for implying meaning or with specific azimuth configuration and operation, therefore can not manage
Solve as limiting the scope of the invention；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second "
Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this
The limitation of invention protection domain.
Claims (14)
- A kind of 1. centrifugation blade, it is characterised in that including：Wheel hub (10)；Blade (20), it is arranged on the wheel hub (10)；Denoising structure (30), it is arranged on the blade (20), the denoising structure (30) is used to contact with gas to reduce gas Caused noise between body and the blade (20).
- 2. centrifugation blade according to claim 1, it is characterised in that the denoising structure (30) includes：Multiple first raised (31), multiple described first raised (31) are disposed on the blade (20).
- 3. centrifugation blade according to claim 1 or 2, it is characterised in that the denoising structure (30) includes：Multiple first grooves (32), multiple first grooves (32) are disposed on the blade (20).
- 4. centrifugation blade according to claim 1, it is characterised in that the blade (20) has windward side and leeward side, The windward side is used to promote gas to flow, and the denoising structure (30) is arranged on the windward side.
- 5. centrifugation blade according to claim 4, it is characterised in that the windward side is arcwall face, the arcwall face court The inner recess of the blade (20).
- 6. centrifugation blade according to claim 1, it is characterised in that the blade (20) is multiple, multiple blades (20) it is circumferentially positioned at along the axis of the wheel hub (10) on the wheel hub (10).
- 7. a kind of centrifugal blower, including drive shaft and centrifugation blade, wheel hub (10) and the drive shaft of the centrifugation blade connect Connect, it is characterised in that the centrifugation blade is the centrifugation blade any one of claim 1 to 6.
- 8. a kind of manufacture method of centrifugation blade, it is characterised in that comprise the following steps successively：Step S10：Make mould；Step S20：Molding structure is produced in the mold cavity surface of the mould；Step S40：The Mold Making centrifugation blade is used by Shooting Technique, the centrifugation blade produced is claim 1 To the centrifugation blade any one of 6, wherein, the molding structure produces the denoising structure (30) of the centrifugation blade.
- 9. manufacture method according to claim 8, it is characterised in that in the step S20, pass through etching process or sun Pole oxidation technology or laser technique make the molding structure.
- 10. manufacture method according to claim 8, it is characterised in thatIn the step S20, the molding structure is multiple second grooves for producing of mold cavity surface in the mould, In the step S40, it is convex on the blade (20) of the centrifugation blade to produce multiple first by multiple second grooves Rise (31)；And/orIn the step S20, the molding structure be the mould mold cavity surface produce it is multiple second raised, In the step S40, multiple first grooves are produced on the blade (20) of the centrifugation blade by the described second projection (32)。
- 11. manufacture method according to claim 10, it is characterised in that in the type of the mould in the step S20 When chamber surface makes multiple second grooves, comprise the following steps successively：Step S21：Diaphragm with multiple through holes is attached to the mold cavity surface of the mould；Step S22：Corrosive liquid is sprayed on the diaphragm；Step S23：The corrosive liquid contacts with the mold cavity surface of the mould into the through hole and corrodes the die cavity table Face, evidence of corrosion is formed in the mold cavity surface after certain interval of time；Step S24：Take the diaphragm off from the mould and clean the mould.
- 12. manufacture method according to claim 11, it is characterised in that sequential operation repeatedly the step S21 to described Step S24, until the evidence of corrosion forms multiple second grooves.
- 13. manufacture method according to claim 8, it is characterised in that between the step S20 and the step S40 Have steps of：Step S30：The quality of the mould is checked, if the mould meets production requirement, into the step S40, if institute State mould and be unsatisfactory for production requirement, then return to the step S20.
- 14. manufacture method according to claim 8, it is characterised in that the step S40 comprises the following steps：Step S41：The centrifugation blade is produced as a trial using the mould；Step S42：The quality of the centrifugation blade is checked, if the centrifugation blade meets quality requirement, produces institute in enormous quantities Centrifugation blade is stated, if the centrifugation blade is unsatisfactory for quality requirement, returns to the step S20.
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| CN201710788799.9A CN107542699A (en) | 2017-09-04 | 2017-09-04 | The manufacture method of centrifugation blade, centrifugal blower and centrifugation blade |
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| CN201710788799.9A CN107542699A (en) | 2017-09-04 | 2017-09-04 | The manufacture method of centrifugation blade, centrifugal blower and centrifugation blade |
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