CN1338576A - Plastic blade sheel of water pump - Google Patents
Plastic blade sheel of water pump Download PDFInfo
- Publication number
- CN1338576A CN1338576A CN 01111127 CN01111127A CN1338576A CN 1338576 A CN1338576 A CN 1338576A CN 01111127 CN01111127 CN 01111127 CN 01111127 A CN01111127 A CN 01111127A CN 1338576 A CN1338576 A CN 1338576A
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- China
- Prior art keywords
- water pump
- modified
- impeller
- keyway
- vane
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Abstract
A plastic blade wheel for water pump used to cool engine of car is made up of modified engineering plastics other than cast iron. Its advantages include excellent cavitation corrosion resistance, light weight, low noise and high efficiency.
Description
The present invention relates to water pump vane, particularly the anti-cavitation water pump vane.
The cooling waterpump impeller adopts metallic material manufacturings such as iron, copper, aluminium more, in working long hours, because the cavitation effect makes impeller surface form pockmark even perforation not of uniform size, skewness, the working efficiency of cooling waterpump is descended significantly; Cavitation also can make water pump produce noise and vibrations simultaneously.At present the anti-cavitation means of water pump vane mostly are impeller or blade structure improves, or the variation by blade structure and vane collocation angle, alleviate the level of cavitation of impeller.CN 94208324 has proposed a kind of anti-cavitation structure of double-suction centrifugal pump pump impeller, fluting and filling anti-cavitation material on metal blade, but decreasing cavitation degree, but can not fundamentally solve the cavitation problem.
The present invention is directed to the cavitation problem that the metal water pump impeller exists, propose a kind of plastic blade sheel of water pump, in the working efficiency that guarantees water pump simultaneously, have excellent anti-cavitation performance, and can effectively alleviate water pump vane weight, reduce noise, simplified manufacturing technique.
The present invention realizes like this, plastic blade sheel of water pump adopts the structure of metal water pump impeller, comprise the axis hole 2 coaxial with impeller, axis hole inside is provided with the keyway 3 that connects with water pump spindle, the one side of impeller is plane structure or has and the coaxial annular boss of impeller or the plane structure of concave station, another side has along the impeller outer edge to the equally distributed blade 1 of axis direction, to form flow channel.With high strength, high-dimensional stability, resistant to elevated temperatures modified engineered plastic,, make water pump vane with predetermined structure by injection moulding or mistake core forming method.Used modified engineered plastic should satisfy following condition: compression strength＞130MPa, flexural strength＞180MPa, the modulus of elasticity in static bending＞10GPa, heat distortion temperature＞240 ℃, the modified plastics matrix should have characteristics such as chemical corrosion that excellent heat-proof aging, anti-weak base, weak acid and salt fog produce, endurance, anti-creep simultaneously, when guaranteeing the water pump vane mechanical property, do not produce cavitation phenomenons in the using process, thereby guarantee the working efficiency of cooling waterpump.
The plastic impeller that the present invention relates to is applicable to common water pump, is specially adapted to engine cooling water pump and is using for a long time below 150 ℃.The employed modified engineered plastic of the plastic blade sheel of water pump that the present invention relates to can be a kind of in the Noryl that satisfies aforementioned requirement, modified polyamide, modified polyphenyl thioether, modified poly (ether-sulfone), modified polyetheretherketonefiber, modified polyether acid imide, the modified polyimide, the modification mode of employing comprise fiber reinforcement, inorganics filled, polyolefin polymers is toughness reinforcing or its combination.Characteristics in conjunction with engineering plastics, the design of keyway arrangements avoids easily producing the horn structure that stress is concentrated as far as possible, preferred no bond structure or spline structure, under the less demanding situation of pump head, also can select flat key structure for use, the structural type of keyway is corresponding with the fixed form of axle, and three kinds of connecting modes all can be realized the proper functioning of water pump.
Keyless axis hole structural design is to have the bent limit polygonal that equally distributed secant and axis hole circumference camber line are formed by connecting at interval, structural type as shown in Figure 1, secant 1 is equally distributed 3～7 secants in the axis hole, camber line 6 is the axis hole camber line that connects with secant 5 in the axis hole, the secant height is the keyway height 4 of no bond structure, and the keyway height of formation is 1/15～1/8 of a shaft hole diameter; The flat key structure form as shown in Figure 2, the connecting mode commonly used for the metal water pump impeller generally adopts singly-bound, also can be set to multikey, should there be the chamfering that is not less than 0.2mm at the place, right angle, chamfering can be guaranteed that the keyway height is 1/15～1/8 of a shaft hole diameter by mould structure; The spline structure form as shown in Figure 3, single key slot length is not less than 15mm, highly is not less than 10mm, is the circular arc key.
The long-time use of the water pump vane that the present invention relates to does not produce cavitation; Surface roughness is suitable with smart aluminum casting, is much higher than the sand casting process part; Compare with the cast iron impeller, the realization loss of weight can exempt to do static balancing more than 60%, and the rotation noise is low, the pump efficiency height.
The water pump vane that the present invention relates to can adopt injection moulding, compares with the cast iron impeller to significantly reduce manufacturing procedure, effectively raises labour productivity, and can effectively improve the quality conformance of product simultaneously.
Below in conjunction with accompanying drawing the water pump vane that the present invention relates to is described further, but unintelligible be limitation of the present invention.
The water pump vane plane structure schematic representation of Fig. 1 no bond structure
The water pump vane plane structure schematic representation of Fig. 2 flat key structure
The water pump vane plane structure schematic representation of Fig. 3 spline structure
The water pump vane of structure shown in Figure 1, adopt compression strength 145MPa, modulus of elasticity in static bending 13GPa, uniform three secants are adopted in the modified polyphenyl thioether that heat distortion temperature is 260 ℃ (five or three is made) injection moulding, the keyway arrangements of keyway height 3mm, at pump rotary speed 4070r/min, under 80～120 ℃ of conditions of operating temperature, the water pump pressure head reaches 40m, through 500h operation, pump performance no change.
The water pump vane of structure shown in Figure 2, adopt compression strength 140MPa, modulus of elasticity in static bending 14GPa, modified polyether acid imide (five or three the is made) injection moulding that heat distortion temperature is 260 ℃, keyway arrangements adopts the flat key of 6mm * 6mm * 14mm, and the water pump pressure head reaches more than the 20m.Through 2000～3000r/min, the working medium clear water, 90～150 ℃ of operating temperatures, 350h moves continuously, the impeller size no change, keyway and impeller back support face not damaged, pump efficiency does not reduce in the running.Under the same conditions, with the cast iron water pump impeller of spline structure, linear leaf concave surface well damage almost connects, and blade height reduces by 1～3mm, and blade inlet becomes flexuose, and pump efficiency descends 10～15%.
The water pump vane of structure shown in the accompanying drawing 3, adopt compression strength 200MPa, modulus of elasticity in static bending 15GPa, the modified polyetheretherketonefiber that heat distortion temperature is 300 ℃ (five or three is made) injection moulding, the employing spline connects, at rotating speed 2025/min, the sea water pump suction lift is 1.5m, water outlet pressure 0.09MPa, under 80～120 ℃ of conditions of pump working temperature, operation 3000h, water pump vane do not produce cavitation, salt erosion, pump performance no change.
Claims (8)
1 one kinds of water pump vanes, have the axis hole coaxial (2) with impeller, axis hole inside is provided with the keyway (3) that connects with water pump spindle, the one side of impeller is plane structure or has plane structure with the coaxial annular boss of impeller, another side has along the outer to equally distributed 4～20 blades of axis direction (1), and it is characterized in that: this impeller is the modified engineered plastic goods.
The described water pump vane of 2 claims 1, used modified engineered plastic are selected from a kind of in Noryl, modified polyamide, modified polyphenyl thioether, modified poly (ether-sulfone), modified polyetheretherketonefiber, modified polyether acid imide, the modified polyimide.
The used modified engineered plastic of 3 water pump vanes described herein should satisfy compression strength greater than 130MPa, and flexural strength is greater than 180MPa, and heat distortion temperature is greater than 240 ℃.
The described water pump vane of 4 claims 1 is flat key, spline or does not have total a kind of of key mode with the water pump connecting mode.
Even 1～6 keyway (3) that distributes in the described water pump vane of 5 claims 1, axis hole (2), keyway height (4) is 1/20～1/5 of a shaft hole diameter.
The described water pump vane of 6 claims 1, blade structure are the deviated splitter vane that is provided with at interval, and blade amt is an even number.
The described water pump vane of 7 claims 4 is provided with 16 * 6 * 14 flat key keyway (3) in the axis hole (2).
The described water pump vane of 8 claims 4, adopt compression strength 145MPa, modulus of elasticity in static bending 13GPa, the modified polyphenyl thioether manufacturing, axis hole (2) is shaped as the bent limit Hexagon of uniform three secants (5), and the keyway height (4) of formation is 1/10 of a shaft hole diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01111127 CN1338576A (en) | 2001-03-19 | 2001-03-19 | Plastic blade sheel of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01111127 CN1338576A (en) | 2001-03-19 | 2001-03-19 | Plastic blade sheel of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1338576A true CN1338576A (en) | 2002-03-06 |
Family
ID=4658956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01111127 Pending CN1338576A (en) | 2001-03-19 | 2001-03-19 | Plastic blade sheel of water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1338576A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368573B (en) * | 2008-09-08 | 2010-06-02 | 奇瑞汽车股份有限公司 | Water pump impeller |
| CN103850981A (en) * | 2012-12-04 | 2014-06-11 | 杜尔牙科股份有限公司 | Medical or dental fan |
| CN104141633A (en) * | 2008-12-05 | 2014-11-12 | Ecp发展有限责任公司 | Fluid pump with a rotor |
| CN106194756A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Centrifugal pump manufacture method |
| CN106194823A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Centrifugal pump |
| CN106402017A (en) * | 2016-11-25 | 2017-02-15 | 宜兴市宙斯泵业有限公司 | Plastic centrifugal pump |
| US10584705B2 (en) | 2015-04-30 | 2020-03-10 | Zhejiang Sanhua Automotive Components Co., Ltd. | Centrifugal pump and method for manufacturing the same |
-
2001
- 2001-03-19 CN CN 01111127 patent/CN1338576A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368573B (en) * | 2008-09-08 | 2010-06-02 | 奇瑞汽车股份有限公司 | Water pump impeller |
| CN104141633A (en) * | 2008-12-05 | 2014-11-12 | Ecp发展有限责任公司 | Fluid pump with a rotor |
| CN104141633B (en) * | 2008-12-05 | 2017-09-01 | Ecp发展有限责任公司 | Fluid pump with rotor |
| CN103850981A (en) * | 2012-12-04 | 2014-06-11 | 杜尔牙科股份有限公司 | Medical or dental fan |
| CN106194756A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Centrifugal pump manufacture method |
| CN106194823A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Centrifugal pump |
| CN106194756B (en) * | 2015-04-30 | 2020-02-14 | 浙江三花汽车零部件有限公司 | Centrifugal pump manufacturing method |
| US10584705B2 (en) | 2015-04-30 | 2020-03-10 | Zhejiang Sanhua Automotive Components Co., Ltd. | Centrifugal pump and method for manufacturing the same |
| CN106194823B (en) * | 2015-04-30 | 2020-03-24 | 浙江三花汽车零部件有限公司 | Centrifugal pump |
| CN106402017A (en) * | 2016-11-25 | 2017-02-15 | 宜兴市宙斯泵业有限公司 | Plastic centrifugal pump |
| CN106402017B (en) * | 2016-11-25 | 2019-08-02 | 宜兴市宙斯泵业有限公司 | A kind of plastic centrifugal pump |
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| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |