CN104653512B - Molding glass fiber reinforced plastic centrifugal fan impeller and preparation method thereof - Google Patents
Molding glass fiber reinforced plastic centrifugal fan impeller and preparation method thereof Download PDFInfo
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- CN104653512B CN104653512B CN201510060335.7A CN201510060335A CN104653512B CN 104653512 B CN104653512 B CN 104653512B CN 201510060335 A CN201510060335 A CN 201510060335A CN 104653512 B CN104653512 B CN 104653512B
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- cornice
- impeller blade
- inserting groove
- chassis
- impeller
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a molding glass fiber reinforced plastic centrifugal fan impeller and a preparation process of the molding glass fiber reinforced plastic centrifugal fan impeller. According to the glass fiber reinforced plastic centrifugal fan impeller, a cornice is prepared in an impeller blade, and is inserted into an embedded groove in an upper disc, then a bayonet screw is clamped, so that the cornice is properly opened, and is fixedly connected to the upper disc, stable connection of the impeller blade as well as the upper disc and a chassis is realized, the integral strength of an impeller fan can be guaranteed, and the problem that the impeller blade cannot be stably connected with the upper disc and the chassis in a traditional glass fiber reinforced plastic fan impeller is solved. Additionally, according to the preparation process, mechanized processing and mass production of the glass fiber reinforced plastic fan impeller can be realized; compared with a traditional manual preparation process of the glass fiber reinforced plastic centrifugal fan impeller, the production efficiency can be greatly improved, manpower is saved, the production cost is reduced, and the market competitiveness of products is increased.
Description
Technical field
The present invention relates to a kind of centrifugal blower fan blade wheel, specifically a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel and its system
Preparation Method.
Background technology
Centrifugal blower is the mechanical energy relying on input, improves gas pressure and supplies gas side by side the machinery of body, it is a kind of driven
Fluid machinery.Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, row
Dirt and cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling in the apparatus of air conditioning and domestic electric appliance and ventilation；
The drying of corn and selecting and recommending；The inflation of wind-tunnel wind regime and aircushion vehicle and propulsion etc..
Centrifugal blower is substantially a kind of variable-flow constant voltage equipment.When rotating speed one timing, the pressure-flow of centrifugal blower is theoretical
Curve should be straight line. due to internal losses, actual characteristic curve is bending.In centrifugal blower, produced pressure is subject to
Intake air temperature or the considerable influence of variable density.The air inflow given to one, during highest intake air temperature (atmospheric density is minimum)
The pressure producing is minimum.For a given pressure and rating curve, just there are a power and rating curve.When
When aerator is with constant-speed operation, for a given flow, required power raises with the reduction of intake air temperature.
Impeller in centrifugal blower is one of centrifugal blower key working part, for the service behaviour of centrifugal blower
Can have a huge impact.Because mostly centrifugal blower is under the environmental condition being operated in Acidity of Aikalinity corrosion, to metallic impeller
Service life can produce very big adverse effect, and therefore, corrosion resistant glass ring draught fan impeller just arises at the historic moment therewith.Existing
Glass fibre reinforced plastic centrifugal mainly passes through manual manufacture, and not only production efficiency is low, high labor intensive, the use of manufacturing enterprise
Workman person is many, and production cost is high, and the connection of the impeller blade being additionally, since in draught fan impeller and upper disk and/or lower wall is mainly adopted
It is connected with, this connected mode haves the shortcomings that to connect loosely, and the bulk strength of draught fan impeller is also had a great impact.
Content of the invention
An object of the present invention is exactly to provide a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, with solve existing fiberglass from
The impeller blade connectivity robustness difference of heart draught fan impeller and the not high problem of draught fan impeller bulk strength.
The second object of the present invention is exactly to provide a kind of preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, to solve glass
The low problem of glass steel centrifugal blower fan blade wheel production efficiency.
An object of the present invention is achieved in that a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, includes annular
Upper disk and discoidal chassis, and be connected to some impeller blades between described upper disk and described chassis, it is characterized in that, institute
State impeller blade to be distributed along the even circumferential on described chassis with gradually evolution formula, described impeller blade is with the one compression molding of described chassis even
Connect, be formed with the upright cornice for connecting disk on described in the upper end of described impeller blade；On described, the top surface of disk is circumferentially opened
There is the insertion inserting groove of involute, the described cornice on described impeller blade is plugged in described inserting groove, embedding in described cornice
Diameter is had to be slightly larger than the bayonet socket screw mandrel of described cornice gap width, the suitable for reading of described inserting groove of disk is capped with glass on described
Steel packing layer.
The inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom on described chassis
Face, is provided with the interlayer of isolation impeller blade hollow cavity in the bottom of described cornice.
The upper edge of the described cornice on described impeller blade is arcs of recesses edge, the radian at this arcs of recesses edge and described upper disk
The notch radian of the described inserting groove of top surface is identical or essentially identical.
The second object of the present invention is achieved in that a kind of preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, bag
Include following steps:
A, make the upper disk of annular with glass-reinforced plastic material molding, circumferentially have involute in the body of disk on described
The inserting groove of distribution, the top of inserting groove is opening shape or sealing shape；
B, after described upper disk sizing and solidifying, each inserting groove is carried out in card with abrasive machine fluting finishing, by grafting
Go out, along grinding, the groove tilting to both sides on the notch of groove；
C, suppress discoidal chassis and impeller blade with glass-reinforced plastic material Integral mold, described impeller blade is equal with gradually evolution formula
Cloth, on the circumference on described chassis, is molded with the upright cornice for connecting disk on described in the upper end of described impeller blade；
D, after the sizing and solidifying of described chassis, by inserting groove on chassis, on described upper disk for the upper disk buckle closure processing
The cornice each corresponding on an impeller blade carries out plugging together connection, so that the cornice on each impeller blade is inserted into right on described upper disk
In the inserting groove answered；
E, take diameter to be slightly larger than the iron wire of described cornice gap width, cut down with the size segmentation being slightly less than cornice length,
As bayonet socket screw mandrel adapted；
F, from the top surface of described upper disk, operation is fixed to the cornice of the impeller blade of each grafting, that is, takes a section bayonet socket
Screw mandrel snaps in a cornice, will strut along appropriateness on the both sides of cornice, is allowed to fit to the notch side of disk inserting groove；
G, coat in each inserting groove of disk on described with fiberglass filler, to cover in embedded bayonet socket screw mandrel, cornice
And inserting groove；
H, after the fiberglass filler solidification sealed, after the fiberglass filler of sealing part is polished fiberglass from
Heart draught fan impeller；It is finished product after the glass fibre reinforced plastic centrifugal made is balanced with correction.
The inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom on described chassis
Face, is provided with the interlayer of isolation impeller blade hollow cavity in the bottom of described cornice.
The upper edge of the described cornice on described impeller blade is arcs of recesses edge, the radian at this arcs of recesses edge and described upper disk
The notch radian of the described inserting groove of top surface is identical or essentially identical.
The present invention passes through to make cornice on impeller blade, is plugged in the scarfing slot on disk, then by bayonet socket screw mandrel
Snap in, so that cornice appropriateness is strutted, thus being fixedly connected on disk, thus achieving impeller blade and connecting with upper disk and stablizing of chassis
Connect the bulk strength it is ensured that fan impeller, the impeller blade solving in traditional fiberglass blower fan impeller can not be with upper disk
The problem being stably connected with chassis.And, processing technology of the present invention can realize fiberglass blower fan impeller Mechanized Processing and
Mass production, compared to the manual manufacture technique of traditional glass fibre reinforced plastic centrifugal, can be greatly improved production efficiency,
Save recruitment personnel, reduce production cost, improve the competitiveness of product in market.
Brief description
Fig. 1 is the structural representation of centrifugal blower fan blade wheel of the present invention.
Fig. 2 is the top surface structure schematic diagram on chassis and impeller blade part.
Fig. 3 is the bottom surface structure schematic diagram on chassis.
Fig. 4 is the bottom surface structure schematic diagram of upper disk.
Fig. 5 is the contour structures schematic diagram of impeller blade.
In figure: 1, upper disk, 2, impeller blade, 3, chassis, 4, inserting groove, 5, cornice, 6, core groove, 7, bayonet socket screw mandrel, 8, center
Round platform, 9, axis hole, 10, bushing.
Specific embodiment
Embodiment 1: stem pressing glass reinforced plastics centrifugal blower fan blade wheel
As shown in figure 1, stem pressing glass reinforced plastics centrifugal blower fan blade wheel of the present invention includes the parts such as disk 1, chassis 3 and impeller blade 2.
The body of upper disk 1 is annular, and card is the cancave cambered surface that middle part is slightly higher, bottom is omited in outer, circumferentially has in the card of upper disk 1
Ten (variable amounts) inserting groove 4(Fig. 4), all inserting grooves 4 with gradually evolution formula along the circumference uniform distribution of card, each inserting groove 4
Bottom surface both sides have the shield edge extending downwardly from, to improve and the contact area of impeller blade, improve bonding strength.
Chassis 3 is circular disk body, has prominent center round platform 8 in the middle part of card, when making chassis, pre- at the center on chassis 3
If the bushing 10 of a steel, the centre bore of bushing constitutes axis hole 9, has keyway in axis hole 9, in order to draught fan impeller and electricity
The connection of arbor.
Impeller blade 2 uses glass-reinforced plastic material one compression molding with chassis 3.Impeller blade 2 is with gradually evolution formula along the circle on chassis 3
It is uniformly distributed (Fig. 2) week, is formed with upright cornice 5(Fig. 5 in the upper end of impeller blade 2).Cornice 5 is arranged on the upper end of impeller blade 2,
For two relative lamellar body structures, intermediate formation core groove 6(Fig. 1).Cornice 5 on impeller blade 2 is plugged on the inserting groove 4 of disk 1
In.
In Fig. 1, bayonet socket screw mandrel 7 is embedded with the core groove 6 being formed by cornice 5 on impeller blade 2, bayonet socket screw mandrel 7 is to use
The iron wire that diameter is slightly larger than cornice gap width is made.After bayonet socket screw mandrel 7 snaps in cornice, the upper edge of cornice 5 is fitted to both sides
Degree struts, so that upper disk 1 is consolidated with impeller blade 2 being connected.Afterwards, in one layer of fiberglass of covering suitable for reading of the inserting groove 4 of upper disk 1
Packing layer, for covering the gap of bayonet socket screw mandrel 7 and cornice 5.Finally, carry out polishing to the fiberglass packing layer after solidification to repair
Whole.
The inside of impeller blade 2 is hollow cavity, and the bottom opening of this hollow cavity is opened in the bottom surface (Fig. 3) on chassis 3.?
The bottom of cornice 5 is provided with the interlayer of isolation impeller blade hollow cavity.It is the mould that grafting is set in the bottom surface on chassis 3 when making
Inner core plates, to form the internal cavities body of impeller blade.For ease of depanning, the thickness direction of mold core plate and width all carry
There is certain taper.Therefore, the profile of impeller blade 2 has also just carried certain taper in thickness direction and width.Fig. 5
In, the upper edge of the cornice 5 on impeller blade 2 is arcs of recesses edge, the inserting groove 4 of the radian at this arcs of recesses edge and upper disk 1 top surface
Notch radian identical or essentially identical so that the two formed good position matching.
Embodiment 2: the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel
With reference to Fig. 1, the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel of the present invention comprises the following steps:
First, it is molded with glass-reinforced plastic material and make the upper of annular, 1, the card of upper disk 1 circumferentially has involute and divides
The inserting groove 4 of cloth, inserting groove 4 can be the closed slot of open-topped open slot or top closure.Each inserting groove
There is the shield edge extending downwardly from 4 bottom surface both sides.
2nd, discoidal chassis 3 and the impeller blade 2 being distributed on chassis 3 are suppressed with glass-reinforced plastic material Integral mold.Chassis
There is prominent center round platform 8 in the middle part of 3 card, preset the bushing 10 of a steel, the centre bore structure of bushing at the center on chassis 3
Become axis hole 9, have keyway in axis hole 9, in order to the connection of draught fan impeller and motor shaft.Impeller blade 2 is with gradually evolution formula the bottom of along
The even circumferential distribution of disk 3；It is molded with upright cornice 5 in the upper end of impeller blade 2, the length of cornice 5 is less than the top of impeller blade
Portion's width, forms convex shoulder at the top of impeller blade 2, stretches shield edge to accept under the inserting groove 4 of upper disk 1.Eaves on impeller blade 2
Mouthfuls 5 upper edge is arc-shaped side along (Fig. 5), the basic phase of notch radian of the radian on this arc-shaped side edge and the inserting groove 4 of upper disk 1 top surface
With.Impeller blade 2 is the hollow cavity of bottom opening, and one-shot forming in the one mold process with impeller blade 2 for the chassis 3, in eaves
The bottom of mouth 5 is provided with the interlayer of the hollow cavity of isolation impeller blade.
3rd, after upper disk 1 sizing and solidifying, with abrasive machine, each inserting groove 4 in card is carried out with fluting processing, makes cell wall ratio
More smooth, and grinding goes out the angle side tilting to both sides at the notch of inserting groove 4.
4th, after the sizing and solidifying of chassis 3, by upper disk 1 buckle closure on chassis 3, the inserting groove 4 on upper disk 1 each corresponds to one
Cornice 5 on individual impeller blade 2 is interlocked, and makes each cornice 5 on impeller blade be inserted into a corresponding inserting groove 4 on disk 1
In.
5th, take diameter to be slightly larger than the iron wire of the gap width of cornice 5, cut down with the size segmentation being slightly less than cornice length,
As bayonet socket screw mandrel 7 adapted.
6th, snap in a section bayonet socket screw mandrel 7 in the cornice 5 of the impeller blade in the top surface of upper disk 1, each inserting groove 4, by eaves
The upper edge of mouth 5 suitably struts to both sides, to be adjacent to the notch side of inserting groove 4.
7th, with fiberglass filler coat upper disk 1 inserting groove 4 suitable for reading, with cover in bayonet socket screw mandrel 7, cornice 5 and insert
Access slot 4.
8th, wait seal fiberglass packing layer solidification after, the fiberglass filler of sealing part is polished smooth, fiberglass
Centrifugal blower fan blade wheel.Finally, the glass fibre reinforced plastic centrifugal made is balanced correcting, as finished product, packaging and storage.
Claims (6)
1. a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, includes the upper disk of annular and discoidal chassis, and is connected to
Some impeller blades between described upper disk and described chassis, is characterized in that, described impeller blade is with gradually evolution formula along described chassis
Even circumferential is distributed, and described impeller blade is connected with the one compression molding of described chassis, the upper end of described impeller blade be formed with for
Connect the upright cornice of described upper disk；On described, the top surface of disk circumferentially has the insertion inserting groove of involute, described impeller
Described cornice on piece is plugged in described inserting groove, is embedded with diameter and is slightly larger than described cornice gap width in described cornice
Bayonet socket screw mandrel, on described, the suitable for reading of the described inserting groove of disk is capped with fiberglass packing layer.
2. stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 1, is characterized in that, during the inside of described impeller blade is
Cavity body, the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, is provided with isolation leaf in the bottom of described cornice
The interlayer of wheel piece hollow cavity.
3. stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 1, is characterized in that, the described eaves on described impeller blade
Mouthful upper edge be arcs of recesses edge, the notch radian phase of the radian at this arcs of recesses edge and the described inserting groove of described upper disk top surface
Same or essentially identical.
4. a kind of preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, is characterized in that, comprise the following steps:
A, make the upper disk of annular with glass-reinforced plastic material molding, circumferentially have involute distribution in the body of disk on described
Inserting groove, the top of inserting groove is opening shape or sealing shape；
B, after described upper disk sizing and solidifying, each inserting groove is carried out in card with abrasive machine fluting finishing, by inserting groove
Go out, along grinding, the groove tilting to both sides on notch；
C, suppress discoidal chassis and impeller blade with glass-reinforced plastic material Integral mold, described impeller blade is distributed on gradually evolution formula
On the circumference on described chassis, it is molded with the upright cornice for connecting disk on described in the upper end of described impeller blade；
D, after the sizing and solidifying of described chassis, by the upper disk buckle closure processing on chassis, the inserting groove on described upper disk is each
Cornice on a corresponding impeller blade carries out plugging together connection, so that the cornice on each impeller blade is inserted into corresponding on described upper disk
In one inserting groove；
E, take diameter to be slightly larger than the iron wire of described cornice gap width, cut down with the size segmentation being slightly less than cornice length, as
Bayonet socket screw mandrel adapted；
F, from the top surface of described upper disk, operation is fixed to the cornice of the impeller blade of each grafting, that is, takes a section bayonet socket screw mandrel
Snap in a cornice, will strut along appropriateness on the both sides of cornice, be allowed to fit to the notch side of disk inserting groove；
G, coated in each inserting groove of disk on described with fiberglass filler, to cover in embedded bayonet socket screw mandrel, cornice and to insert
Access slot；
H, after the fiberglass filler solidification sealed, after the fiberglass filler of sealing part is polished fiberglass centrifugation wind
Machine impeller；It is finished product after the glass fibre reinforced plastic centrifugal made is balanced with correction.
5. the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 4, is characterized in that, described impeller blade
Inside be hollow cavity, the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, in the bottom of described cornice
It is provided with the interlayer of isolation impeller blade hollow cavity.
6. the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 4, is characterized in that, described impeller blade
On the upper edge of described cornice be arcs of recesses edge, the described inserting groove of the radian at this arcs of recesses edge and described upper disk top surface
Notch radian is identical or essentially identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060335.7A CN104653512B (en) | 2015-02-05 | 2015-02-05 | Molding glass fiber reinforced plastic centrifugal fan impeller and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060335.7A CN104653512B (en) | 2015-02-05 | 2015-02-05 | Molding glass fiber reinforced plastic centrifugal fan impeller and preparation method thereof |
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| CN104653512A CN104653512A (en) | 2015-05-27 |
| CN104653512B true CN104653512B (en) | 2017-01-18 |
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| CN105467712A (en) | 2016-01-08 | 2016-04-06 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN110685942B (en) * | 2019-11-15 | 2023-03-17 | 广东恒利通风机有限公司 | Cabinet type high-efficiency centrifugal fan |
| CN111231327A (en) * | 2020-01-10 | 2020-06-05 | 中铁第十八工程局涿州水泵厂 | Production process of fan impeller |
| CN112503002A (en) * | 2020-11-18 | 2021-03-16 | 靳普 | Gas compressor with oblique thrust structure and rotor system |
| CN112503022A (en) * | 2020-11-18 | 2021-03-16 | 靳普 | Closed impeller and compressor |
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|---|---|---|---|---|
| JPH094598A (en) * | 1995-06-20 | 1997-01-07 | Takasago Thermal Eng Co Ltd | Manufacture of impeller for centrifugal blower having aerofoil blade |
| DE19906645A1 (en) * | 1999-02-18 | 2000-08-24 | Abb Research Ltd | Centrifugal impeller for compressing fluids has openings in the cover and rear plates for inserting connecting lugs on the blades |
| JP2004346860A (en) * | 2003-05-23 | 2004-12-09 | Seikow Chemical Engineering & Machinery Ltd | Impeller made of fiber-reinforced plastic |
| CN201851396U (en) * | 2010-09-16 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Enhancement fan impeller |
| CN202031875U (en) * | 2011-03-25 | 2011-11-09 | 上海飞浪气垫船有限公司 | Centrifugal fan impeller made of carbon fiber glass fiber reinforced plastic for hovercraft |
| CN204511966U (en) * | 2015-02-05 | 2015-07-29 | 冯桂超 | Stem pressing glass reinforced plastics centrifugal blower fan blade wheel |
-
2015
- 2015-02-05 CN CN201510060335.7A patent/CN104653512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH094598A (en) * | 1995-06-20 | 1997-01-07 | Takasago Thermal Eng Co Ltd | Manufacture of impeller for centrifugal blower having aerofoil blade |
| DE19906645A1 (en) * | 1999-02-18 | 2000-08-24 | Abb Research Ltd | Centrifugal impeller for compressing fluids has openings in the cover and rear plates for inserting connecting lugs on the blades |
| JP2004346860A (en) * | 2003-05-23 | 2004-12-09 | Seikow Chemical Engineering & Machinery Ltd | Impeller made of fiber-reinforced plastic |
| CN201851396U (en) * | 2010-09-16 | 2011-06-01 | 苏州顶裕节能设备有限公司 | Enhancement fan impeller |
| CN202031875U (en) * | 2011-03-25 | 2011-11-09 | 上海飞浪气垫船有限公司 | Centrifugal fan impeller made of carbon fiber glass fiber reinforced plastic for hovercraft |
| CN204511966U (en) * | 2015-02-05 | 2015-07-29 | 冯桂超 | Stem pressing glass reinforced plastics centrifugal blower fan blade wheel |
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