CN104653512A - 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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- CN104653512A CN104653512A CN201510060335.7A CN201510060335A CN104653512A CN 104653512 A CN104653512 A CN 104653512A CN 201510060335 A CN201510060335 A CN 201510060335A CN 104653512 A CN104653512 A CN 104653512A
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- cornice
- impeller blade
- inserting groove
- chassis
- dish
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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
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- 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 preparation method thereof.
Background technique
Centrifugal blower is the mechanical energy relying on input, and improve gas pressure and to supply gas side by side the machinery of body, it is a kind of driven fluid machinery.Centrifugal blower is widely used in factory, mine, tunnel, cooling tower, vehicle, the ventilation of boats and ships and building, dust discharge 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 oven dry of cereal and selecting and recommending; The inflation of wind-tunnel wind regime and Hovercraft and propelling etc.
Centrifugal blower essence is a kind of variable-flow constant-voltage equipment.When rotating speed one timing, the pressure-flow theoretical curve of centrifugal blower should be straight line. due to internal losses, actual characteristic curve is bending.The pressure produced in centrifugal blower is subject to the considerable influence of intake temperature or variable density.To a given air inflow, the pressure produced time the highest intake temperature (air density is minimum) is minimum.For a given pressure versus flow characteristic curve, just there are a power and rating curve.When blower is with constant-speed operation, for a given flow, required power raises with the reduction of intake temperature.
Impeller in centrifugal blower is a key working part in centrifugal blower, and the service behaviour for centrifugal blower can have a huge impact.Under mostly centrifugal blower be to be operated in the environmental conditions of pH value corrosion, can produce very large adverse effect to the working life of metallic impeller, therefore, corrosion resistant glass ring draught fan impeller just arises at the historic moment thereupon.Existing glass fibre reinforced plastic centrifugal mainly passes through manual manufacture, not only manufacturing efficiency is low, labor intensity is large, the recruitment personnel of manufacturing enterprise are many, cost of production is high, and, because the connection of the impeller blade in draught fan impeller and upper dish and/or lower wall is mainly with bolts, there is the shortcoming connected loosely in this Placement, also has a great impact the bulk strength of draught fan impeller.
Summary of the invention
An object of the present invention is just to provide a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, with the problem that the impeller blade connectivity robustness difference and draught fan impeller bulk strength that solve existing glass fibre reinforced plastic centrifugal are not high.
Two of object of the present invention is just to provide a kind of preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, to solve the low problem of glass fibre reinforced plastic centrifugal manufacturing efficiency.
An object of the present invention is achieved in that a kind of stem pressing glass reinforced plastics centrifugal blower fan blade wheel, include the upper dish of ring and discoidal chassis, and the some impeller blades be connected between described upper dish and described chassis, it is characterized in that, described impeller blade distributes with the gradually evolution formula even circumferential along described chassis, described impeller blade is connected with described chassis Integral mold is molded, the upper end of described impeller blade be shaped with for connect described on dish upright cornice; The end face of dish circumferentially has the through inserting groove of involute on described, described cornice on described impeller blade is plugged in described inserting groove, in described cornice, be embedded with the bayonet socket screw mandrel of diameter slightly larger than described cornice gap width, the covering suitable for reading of the described inserting groove of dish has glass fibre reinforced plastics packing layer on described.
The inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, 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 concave arc shape edge, and the radian at this concave arc shape edge is identical or substantially identical with the notch radian of the described inserting groove of described upper dish end face.
Two of 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, comprises the following steps:
A, make the upper dish of ring with glass fibre reinforced plastic material mold pressing, on described dish body in circumferentially have the inserting groove of involute distribution, the top of inserting groove is opening shape or sealing shape;
B, after described upper dish sizing and solidifying, with grinder in card to each inserting groove carry out fluting finishing, will on the notch of inserting groove along grinding go out to both sides tilt groove;
C, suppress discoidal chassis and impeller blade with glass fibre reinforced plastic material Integral mold, described impeller blade is distributed on described chassis circumferentially with gradually evolution formula, the upper mould of described impeller blade be shaped with for connect described on the upright cornice of dish;
D, after the sizing and solidifying of described chassis, by the upper dish buckle closure that processes on chassis, the cornice of the inserting groove coiled on described separately on a corresponding impeller blade carries out plugging together connection, make the cornice on each impeller blade be inserted into described on coil in an inserting groove of correspondence;
E, cut-off footpath, 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, end face from described upper dish, be fixed operation to the cornice of the impeller blade of each grafting, namely get a joint bayonet socket screw mandrel and snap in a cornice, strut, make it the notch limit fitting to dish inserting groove by the both sides of cornice along appropriateness;
G, coat in each inserting groove of on described dish with glass fibre reinforced plastics filler, to cover in the bayonet socket screw mandrel of embedding, cornice and inserting groove;
H, after the glass fibre reinforced plastics filler solidification of sealing, to the glass fibre reinforced plastics filler of sealing part carry out polishing afterwards glass fibre reinforced plastic centrifugal; Finished product is after balance correction is carried out to the glass fibre reinforced plastic centrifugal made.
The inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, 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 concave arc shape edge, and the radian at this concave arc shape edge is identical or substantially identical with the notch radian of the described inserting groove of described upper dish end face.
The present invention by making cornice on impeller blade, be plugged in the scarfing slot coiled, snapping in again by bayonet socket screw mandrel, cornice appropriateness is strutted, thus be fixedly connected on and coil, thus achieve impeller blade to be connected with upper dish and the stable of chassis, can ensure the bulk strength of fan impeller, the impeller blade solved in traditional fiberglass blower fan impeller can not stablize with upper dish and chassis the problem be connected.And, preparation process of the present invention can realize Mechanized Processing and the mass production of fiberglass blower fan impeller, compared to the manual manufacture technique of traditional glass fibre reinforced plastic centrifugal, can significantly enhance productivity, save recruitment personnel, reduce cost of production, improve the competitiveness of product in market.
Accompanying drawing explanation
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 of 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 dish.
Fig. 5 is the form structure schematic diagram of impeller blade.
In figure: 1, upper dish, 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, lining.
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 comprises the parts such as dish 1, chassis 3 and impeller blade 2.The body of upper dish 1 is ring, card is the concave arc surface that middle part is slightly high, the end is omited in outer, the card of upper dish 1 circumferentially has ten (variable amounts) inserting groove 4(Fig. 4), all inserting grooves 4 with gradually evolution formula along the circumference uniform distribution of card, the both sides, bottom surface of each inserting groove 4 have stretch out downwards protect edge, to improve the area of contact with impeller blade, improve join strength.
Chassis 3 is circular disk body, has outstanding center round platform 8 in the middle part of card, when making chassis, presets the lining 10 of a steel at the center on chassis 3, and the center hole of lining forms axis hole 9, has keyway, so that the connection of draught fan impeller and motor shaft in axis hole 9.
Impeller blade 2 and chassis 3 use glass fibre reinforced plastic material Integral mold molded.Impeller blade 2 distributes (Fig. 2) with the gradually evolution formula even circumferential along chassis 3, is shaped 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, is two relative sheet body structures, middlely forms core groove 6(Fig. 1).Cornice 5 on impeller blade 2 is plugged in the inserting groove 4 of dish 1.
In Fig. 1, be embedded with bayonet socket screw mandrel 7 in the core groove 6 formed by cornice 5 on impeller blade 2, bayonet socket screw mandrel 7 makes with the iron wire of diameter slightly larger than cornice gap width.After bayonet socket screw mandrel 7 snaps in cornice, the upper edge of cornice 5 is strutted to both sides appropriateness, thus dish 1 is firmly connected with impeller blade 2.Afterwards, at covering one deck glass fibre reinforced plastics packing layer suitable for reading of the inserting groove 4 of upper dish 1, for hiding the gap of bayonet socket screw mandrel 7 and cornice 5.Finally, polishing finishing is carried out to the glass fibre reinforced plastics packing layer after solidification.
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 interlayer of isolation impeller blade hollow cavity is provided with in the bottom of cornice 5.The mold core plate that grafting is set in the bottom surface on chassis 3 when namely making, to form the internal cavities body of impeller blade.For ease of depanning, the thickness direction of mold core plate and width direction are all with certain tapering.Therefore, the profile of impeller blade 2 at thickness direction and width direction also just with certain tapering.In Fig. 5, the upper edge of the cornice 5 on impeller blade 2 is concave arc shape edge, and the radian at this concave arc shape edge is identical or substantially identical with the notch radian of the inserting groove 4 of upper dish 1 end face, forms good position matching to make the two.
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:
One, make the upper of ring, 1 with glass fibre reinforced plastic material mold pressing, the card of upper dish 1 circumferentially has the inserting groove 4 of involute distribution, and inserting groove 4 can be open-topped opening slot, also can be the closed slot of top closure.The both sides, bottom surface of each inserting groove 4 have stretch out downwards protect edge.
Two, with the impeller blade 2 that glass fibre reinforced plastic material Integral mold suppresses discoidal chassis 3 and is distributed on chassis 3.Have outstanding center round platform 8 in the middle part of the card on chassis 3, preset the lining 10 of a steel at the center on chassis 3, the center hole of lining forms axis hole 9, has keyway, so that the connection of draught fan impeller and motor shaft in axis hole 9.Impeller blade 2 distributes with the gradually evolution formula even circumferential along chassis 3; Be shaped with upright cornice 5 in the upper mould of impeller blade 2, the length of cornice 5 is less than the top width of impeller blade, namely forms convex shoulder at the top of impeller blade 2, stretches for 4 times protect edge with the inserting groove accepting upper dish 1.The upper edge of the cornice 5 on impeller blade 2 is arc-shaped side edge (Fig. 5), and the radian on this arc-shaped side edge is substantially identical with the notch radian of the inserting groove 4 of upper dish 1 end face.Impeller blade 2 is the hollow cavity of bottom opening, once-through in chassis 3 with the one mold process of impeller blade 2, is provided with the interlayer of the hollow cavity of isolation impeller blade in the bottom of cornice 5.
Three, after upper dish 1 sizing and solidifying, with grinder, fluting processing is carried out to each inserting groove 4 in card, make cell wall smoother, and go out the angle limit tilted to both sides in the notch place grinding of inserting groove 4.
Four, after the sizing and solidifying of chassis 3, by upper dish 1 buckle closure on chassis 3, the cornice 5 on the respective corresponding impeller blade 2 of the inserting groove 4 on upper dish 1 is interlocked, and each cornice 5 on impeller blade is inserted in an inserting groove 4 corresponding on dish 1.
Five, cut-off footpath is slightly larger than the iron wire of the gap width of cornice 5, cuts down with the size segmentation being slightly less than cornice length, as bayonet socket screw mandrel 7 adapted.
Six, at the end face of upper dish 1, snap in a joint bayonet socket screw mandrel 7 in the cornice 5 of the impeller blade in each inserting groove 4, the upper edge of cornice 5 is suitably strutted to both sides, to be adjacent to the notch limit of inserting groove 4.
Seven, coat inserting groove 4 suitable for reading of upper dish 1, to cover in bayonet socket screw mandrel 7, cornice 5 and inserting groove 4 with glass fibre reinforced plastics filler.
Eight, wait seal glass fibre reinforced plastics packing layer solidification after, the glass fibre reinforced plastics filler of sealing part is polished smooth, glass fibre reinforced plastic centrifugal.Finally, balance correction is carried out to the glass fibre reinforced plastic centrifugal made, is finished product, packaging warehouse-in.
Claims (6)
1. a stem pressing glass reinforced plastics centrifugal blower fan blade wheel, include the upper dish of ring and discoidal chassis, and the some impeller blades be connected between described upper dish and described chassis, it is characterized in that, described impeller blade distributes with the gradually evolution formula even circumferential along described chassis, described impeller blade is connected with described chassis Integral mold is molded, the upper end of described impeller blade be shaped with for connect described on dish upright cornice; The end face of dish circumferentially has the through inserting groove of involute on described, described cornice on described impeller blade is plugged in described inserting groove, in described cornice, be embedded with the bayonet socket screw mandrel of diameter slightly larger than described cornice gap width, the covering suitable for reading of the described inserting groove of dish has glass fibre reinforced plastics packing layer on described.
2. stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 1, it is characterized in that, the inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, is provided with the interlayer of isolation impeller blade hollow cavity in the bottom of described cornice.
3. stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 1, it is characterized in that, the upper edge of the described cornice on described impeller blade is concave arc shape edge, and the radian at this concave arc shape edge is identical or substantially identical with the notch radian of the described inserting groove of described upper dish end face.
4. a preparation method for stem pressing glass reinforced plastics centrifugal blower fan blade wheel, is characterized in that, comprises the following steps:
A, make the upper dish of ring with glass fibre reinforced plastic material mold pressing, on described dish body in circumferentially have the inserting groove of involute distribution, the top of inserting groove is opening shape or sealing shape;
B, after described upper dish sizing and solidifying, with grinder in card to each inserting groove carry out fluting finishing, will on the notch of inserting groove along grinding go out to both sides tilt groove;
C, suppress discoidal chassis and impeller blade with glass fibre reinforced plastic material Integral mold, described impeller blade is distributed on described chassis circumferentially with gradually evolution formula, the upper mould of described impeller blade be shaped with for connect described on the upright cornice of dish;
D, after the sizing and solidifying of described chassis, by the upper dish buckle closure that processes on chassis, the cornice of the inserting groove coiled on described separately on a corresponding impeller blade carries out plugging together connection, make the cornice on each impeller blade be inserted into described on coil in an inserting groove of correspondence;
E, cut-off footpath, 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, end face from described upper dish, be fixed operation to the cornice of the impeller blade of each grafting, namely get a joint bayonet socket screw mandrel and snap in a cornice, strut, make it the notch limit fitting to dish inserting groove by the both sides of cornice along appropriateness;
G, coat in each inserting groove of on described dish with glass fibre reinforced plastics filler, to cover in the bayonet socket screw mandrel of embedding, cornice and inserting groove;
H, after the glass fibre reinforced plastics filler solidification of sealing, to the glass fibre reinforced plastics filler of sealing part carry out polishing afterwards glass fibre reinforced plastic centrifugal; Finished product is after balance correction is carried out to the glass fibre reinforced plastic centrifugal made.
5. the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 4, it is characterized in that, the inside of described impeller blade is hollow cavity, and the bottom opening of described hollow cavity is opened in the bottom surface on described chassis, is provided with the interlayer of isolation impeller blade hollow cavity in the bottom of described cornice.
6. the preparation method of stem pressing glass reinforced plastics centrifugal blower fan blade wheel according to claim 4, it is characterized in that, the upper edge of the described cornice on described impeller blade is concave arc shape edge, and the radian at this concave arc shape edge is identical or substantially identical with the notch radian of the described inserting groove of described upper dish end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 true CN104653512A (en) | 2015-05-27 |
| CN104653512B CN104653512B (en) | 2017-01-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10209601B2 (en) | 2016-01-08 | 2019-02-19 | Boe Technology Group Co., Ltd. | Display substrate and driving method thereof, and display device |
| CN110685942A (en) * | 2019-11-15 | 2020-01-14 | 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 |
| WO2022105207A1 (en) * | 2020-11-18 | 2022-05-27 | 至玥腾风科技集团有限公司 | 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 |
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2015
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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 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10209601B2 (en) | 2016-01-08 | 2019-02-19 | Boe Technology Group Co., Ltd. | Display substrate and driving method thereof, and display device |
| CN110685942A (en) * | 2019-11-15 | 2020-01-14 | 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 |
| WO2022105207A1 (en) * | 2020-11-18 | 2022-05-27 | 至玥腾风科技集团有限公司 | Closed impeller and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104653512B (en) | 2017-01-18 |
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