CN102116312B - Impeller for centrifugal pump - Google Patents
Impeller for centrifugal pump Download PDFInfo
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- CN102116312B CN102116312B CN201110056814A CN201110056814A CN102116312B CN 102116312 B CN102116312 B CN 102116312B CN 201110056814 A CN201110056814 A CN 201110056814A CN 201110056814 A CN201110056814 A CN 201110056814A CN 102116312 B CN102116312 B CN 102116312B
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- impeller
- wheel hub
- cover plate
- shroud
- plastics
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Abstract
The invention discloses an impeller for a centrifugal pump. The traditional impeller is easy to wear and lock and has high manufacturing cost. In the impeller for the centrifugal pump, a front cover plate, a rear cover plate and blades are made of stainless steel materials, the plurality of blades are radially arranged between the front cover plate and the rear cover plate, the blades, the front cover plate and the rear cover plate are welded, the edge of a through hole of the front cover plate is provided with a plastic opening ring, the external diameter of the plastic opening ring is larger than the inner diameter of a center hole of a guide blade cover plate, a hub is made of plastics and assembled on the rear cover plate, the front end of the hub extends into the plastic opening ring, a radial clearance is kept between the front end of the hub and the plastic opening ring to form an impeller inlet, and a structure which can move along a pump shaft is adopted in an inner hole of the hub. When the pump is assembled, the front end surface of the plastic opening ring contacts the guide blade cover plate, the impeller can float on the pump shaft through the hub to automatically regulate the size of an axial clearance, thereby the problems of impeller wear and locking caused by silt can be solved to a certain extent. Moreover, by adopting the impeller with the assembly structure, the processing difficulty and the construction cost are reduced.
Description
Technical field
The present invention relates to a kind of centrifugal impeller, be specially choma and wheel hub made of plastic and with the pump shaft Spielpassung with the impeller that is used for centrifugal pump that in use can free floating.
Background technique
Mostly centrifugal impeller in the market is that stainless steel material processes, and its choma all is the cylindrical stainless steel ring of front shroud toward flanging, and stainless steel impeller in the market is being axially locating (as realizing through assembling sleeve on pump shaft) on the pump shaft; Its choma and stator cover plate axially have overlapping portion; For fear of leakage, the radial clearance between this overlapping should be very little so that form sealing, and the radial clearance between this overlapping remains unchanged at work; But when the sediment charge in the medium is big; Easy abrasion choma and stator cover plate destroy the sealing at this place in the work, and impeller is prone to be stuck.
In addition; The wheel hub of centrifugal impeller is generally processed by stainless steel material in the market; Form through with the welding of the front and rear end of cover plate constitutes an integral body with cover plate, and is therefore all very high to technological level and the requirement on machining accuracy of Impeller Machining, the corresponding cost that has also increased manufacturing.
Summary of the invention
The technical problem that the present invention will solve and the technical assignment of proposition are to overcome to be prone to be worn in the existing impeller work and defective stuck and that manufacture cost is high, and a kind of impeller that is used for centrifugal pump is provided.
For this reason; The impeller that is used for centrifugal pump of the present invention comprises front shroud, back shroud, a plurality of blade, wheel hub; Described front shroud, back shroud is rounded and have through hole respectively at the center of the two; Described blade is the twisted plate sheet; It is characterized in that: described front shroud, back shroud, blade are processed with stainless steel material and described a plurality of blades are radial and be distributed between described front shroud and the back shroud; The edge of said blade and said front shroud, back shroud weld together, and form centrifugal passage between the adjacent vanes and form impeller outlet in the outer end of centrifugal passage, and the edge of the through hole of said front shroud is shaped on the plastics choma that extends to the place ahead of said front shroud; The external diameter of said plastics choma is greater than the internal diameter of the center hole of the stator cover plate that is mated under the assembling condition; Described wheel hub is made of plastics and is assemblied on the described back shroud, the front end of said wheel hub extend in the described plastics choma and and described plastics choma between maintain radial clearance and form impeller eye, the endoporus of said wheel hub is processed the structure that can move along pump shaft.
As the optimization technique means, the front end of said wheel hub stretches out said plastics choma.
As the optimization technique means, the edge one of the through hole of described front shroud is shaped on the permanent tooth that extends to the place ahead of said front shroud, and described plastics choma is injection-moulded on the described permanent tooth.
As the optimization technique means; Described wheel hub is made up of front hub parts and rear-wheel hub parts; Offer intercommunicating pore on the described back shroud, described front hub parts are connected the assembling that realizes described front hub parts and rear-wheel hub parts and back shroud with the front side that the rear-wheel hub parts lay respectively at said back shroud with rear side and at described intercommunicating pore place.Further, set up the plug-in projection and the jack of corresponding said intercommunicating pore on described front hub parts and the rear-wheel hub parts separately, described projection passes described intercommunicating pore and is plugged in the described jack.Concrete, described projection is welded in the described jack; Perhaps described projection is bonded in the described jack.
As the optimization technique means, the endoporus of said wheel hub is processed the splined hole that is used for the spline Spielpassung.Further, the through hole at said back shroud center is processed the splined hole that is used for the spline Spielpassung.
The invention has the beneficial effects as follows: process choma and wheel hub with plastic materials; And the external diameter of plastics choma is greater than the internal diameter of the center hole of the stator cover plate that is mated under the assembling condition; Thereby the front-end face of plastics choma contacts the stator cover plate and can form axial clearance under assembling condition; Can reduce the axial dimension of impeller like this; And can make impeller in the pump shaft float through wheel hub, the size according to the next adjustment automatically of the variation of real work situation axial clearance can solve wearing and tearing and the stuck problem of impeller that silt causes to a certain extent; And the impeller of this assembly structure can select for use suitable material manufacture choma and wheel hub to guarantee wear-resisting, corrosion.The impeller of this assembly structure compared with through wanting simple with stainless steel wheel hub in the method for front/rear end welding, also greatly reduces difficulty of processing and cost cost simultaneously.
Description of drawings
Fig. 1 is the cross-sectional schematic of impeller of the present invention.
Fig. 2 is the schematic representation of front shroud of the present invention.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is a schematic representation of on front shroud of the present invention, establishing the plastics choma.
Fig. 5 is that the B-B of Fig. 4 is to sectional view.
Fig. 6 is the schematic representation at front hub parts of the present invention.
Fig. 7 is that the C-C of Fig. 6 is to sectional view.
Fig. 8 is the schematic representation at rear-wheel hub parts of the present invention.
Fig. 9 is that the D-D of Fig. 8 is to sectional view.
Figure 10 is the schematic representation of back shroud of the present invention.
Figure 11 is the schematic representation of blade of the present invention.
Figure 12 is that blade of the present invention is the radial schematic representation that is uniformly distributed with.
Figure 13 is that impeller of the present invention is assemblied in the schematic representation on the water pump.
Label declaration among the figure:
The 1-front shroud, 11-through hole, 12-permanent tooth;
The 2-back shroud, 21-through hole, 22-intercommunicating pore;
The 3-blade;
The 4-wheel hub, 41-front hub parts, 42-rear-wheel hub parts, the front end of 43-wheel hub stretches out the part of plastics choma, 44-projection, 45-jack;
The centrifugal passage of 5-; The 6-impeller outlet; 7-plastics choma; The 8-impeller eye;
The external diameter of d-plastics choma;
The 01-impeller; The 02-pump shaft; The 03-stator; 04-stator cover plate.
Embodiment
Below in conjunction with Figure of description the present invention is further specified.
The impeller 01 that is used for centrifugal pump of the present invention; As shown in Figure 1; Comprise front shroud 1, back shroud 2, a plurality of blade 3, wheel hub 4; Front shroud 1, back shroud 2 are rounded and have through hole 11,21 respectively at the center of the two; Blade 3 is the twisted plate sheet; Front shroud 1, back shroud 2, blade 3 usefulness stainless steel materials are processed and a plurality of blades are radial and are uniformly distributed with (referring to Figure 12) between front shroud 1 and back shroud 2, and the edge of blade 3 and front shroud 1, back shroud 2 welding (as through butt-joint) form centrifugal passage 5 and form impeller outlet 6 in the outer end of centrifugal passage together between the adjacent vanes; The edge of the through hole 11 of front shroud 1 is shaped on the plastics choma 7 that extends to the place ahead of front shroud; The outside diameter d of plastics choma 7 is greater than the internal diameter of the center hole of the stator cover plate 04 (referring to Figure 13) that is mated under the assembling condition, so that the front-end face of plastics choma 7 contacts stator cover plate 04 (referring to Figure 13) and can form axial clearance under the assembling condition, wheel hub 4 is made of plastics and is assemblied on the back shroud 2; The front end of wheel hub 4 extend in the plastics choma 7 and and plastics mouth 7 rings between maintain radial clearance and form impeller eye 8, the endoporus of wheel hub 4 is processed the structure that can move along pump shaft.
As further improving and replenishing to technique scheme; The present invention also comprises following additional technical characteristics; Though impeller shown in Figure 1 has comprised following all additional technical features; Be preferred embodiment of the present invention, but the present invention is not limited to this situation, when embodiment of the present invention, they is selected for use on the described technological scheme of epimere according to concrete effect.
At first; The front end of wheel hub 4 stretches out plastics choma 7; So that the front end and the stator cover plate 04 of wheel hub axially had coincidence part when the front-end face of plastics choma 7 contacted stator cover plate 04 under the assembling condition; Be beneficial to the fluid medium water conservancy diversion, as preferable technological means, the front end of wheel hub stretches out the length of plastics choma part 43 and the consistency of thickness of stator cover plate 04.
Secondly, the edge one of the through hole 11 of front shroud 1 is shaped on the permanent tooth 12 that extends to the place ahead of front shroud, and plastics choma 7 is injection-moulded on the permanent tooth 12, thereby can increase the adhesive strength of plastics choma and front shroud.
The 3rd; Wheel hub 4 is made up of front hub parts 41 and rear-wheel hub parts 42; Offer intercommunicating pore 22 (intercommunicating pore is uniformly distributed with to good) on the back shroud 2, front hub parts 41 are connected the assembling that realizes front hub parts 41 and rear-wheel hub parts 42 and back shroud 2 with the front side that rear-wheel hub parts 42 lay respectively at back shroud 2 with rear side and at intercommunicating pore place 22.Further; (illustrated projection 44 is located on the front hub parts 41 with jack 45 to set up the plug-in projection 44 of corresponding intercommunicating pore 22 on front hub parts 41 and the rear-wheel hub parts 42 separately; Jack 45 is located on the rear-wheel hub parts 42; The two can transposition during practical implementation), projection 44 passes intercommunicating pore 22 and is plugged in the jack 45; In order to guarantee join strength; Projection 44 welding (as through ultrasonic welding) perhaps are bonded in the jack 45; In order to guarantee the intensity of wheel hub, the contact position of other contact position of front hub parts and rear-wheel hub parts and the two and back shroud also can weld together.
The 4th, the endoporus of wheel hub 4 (but front hub parts 41 are or/and endoporus of rear-wheel hub parts 42) is processed the splined hole that is used for spline (this spline assembling is perhaps directly built in pump shaft) Spielpassung, is beneficial to impeller 01 in pump shaft 02 float.Further; The through hole 21 at back shroud 2 centers is processed the splined hole that is used for the spline Spielpassung; Less friction factor is beneficial to impeller in the pump shaft float between the material of wheel hub capable of using like this and the pump shaft (being generally steel); And back shroud can utilize its intensity to accept the torque that the pump shaft transmission comes, and avoids the plastics wheel hub impaired.
Claims (9)
1. the impeller that is used for centrifugal pump; Comprise front shroud (1), back shroud (2), a plurality of blade (3), wheel hub (4); Described front shroud (1), back shroud (2) is rounded and have through hole (11,21) respectively at the center of the two; Described blade (3) is the twisted plate sheet; It is characterized in that: described front shroud (1), back shroud (2), blade (3) are processed with stainless steel material and described a plurality of blades are radial and be distributed between described front shroud (1) and the back shroud (2); The edge of said blade (3) and said front shroud (1), back shroud (3) weld together; Form centrifugal passage (5) between the adjacent vanes and form impeller outlet (6) in the outer end of centrifugal passage; The edge of the through hole (11) of said front shroud (1) is shaped on the plastics choma (7) that extends to the place ahead of said front shroud, and the external diameter (d) of said plastics choma (7) is greater than the internal diameter of the center hole of the stator cover plate that is mated under the assembling condition, and described wheel hub (4) is made of plastics and is assemblied on the described back shroud (2); The front end of said wheel hub (4) extend in the described plastics choma (7) and and described plastics choma between maintain radial clearance and form impeller eye (8), the endoporus of said wheel hub (4) is processed the structure that can move along pump shaft.
2. the impeller that is used for centrifugal pump according to claim 1 is characterized in that: the front end of said wheel hub (4) stretches out said plastics choma (7).
3. the impeller that is used for centrifugal pump according to claim 1; It is characterized in that: the edge one of the through hole of described front shroud (11) is shaped on the permanent tooth (12) that extends to the place ahead of said front shroud, and described plastics choma (7) is injection-moulded on the described permanent tooth (12).
4. the impeller that is used for centrifugal pump according to claim 1; It is characterized in that: described wheel hub (4) is made up of front hub parts (41) and rear-wheel hub parts (42); Offer intercommunicating pore (22) on the described back shroud (2), described front hub parts (41) locate to be connected the assembling that realizes described front hub parts (41) and rear-wheel hub parts (42) and back shroud (2) with the front side that rear-wheel hub parts (42) lay respectively at said back shroud (2) with rear side and at described intercommunicating pore (22).
5. the impeller that is used for centrifugal pump according to claim 4; It is characterized in that: set up the plug-in projection (44) and the jack (45) of corresponding said intercommunicating pore (22) on described front hub parts (41) and the rear-wheel hub parts (42) separately, described projection (44) passes described intercommunicating pore (22) and is plugged in the described jack (45).
6. the impeller that is used for centrifugal pump according to claim 5 is characterized in that: described projection (44) is welded in the described jack (45).
7. the impeller that is used for centrifugal pump according to claim 5 is characterized in that: described projection (44) is bonded in the described jack (45).
8. according to claim 1 or the 4 described impellers that are used for centrifugal pump, it is characterized in that: the endoporus of said wheel hub (4) is processed the splined hole that is used for the spline Spielpassung.
9. the impeller that is used for centrifugal pump according to claim 8 is characterized in that: the through hole (21) at said back shroud center is processed the splined hole that is used for the spline Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056814A CN102116312B (en) | 2011-03-09 | 2011-03-09 | Impeller for centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110056814A CN102116312B (en) | 2011-03-09 | 2011-03-09 | Impeller for centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102116312A CN102116312A (en) | 2011-07-06 |
| CN102116312B true CN102116312B (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110056814A Active CN102116312B (en) | 2011-03-09 | 2011-03-09 | Impeller for centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN102116312B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075362A (en) * | 2011-10-25 | 2013-05-01 | 成都槟果科技有限公司 | Water pump impeller |
| CN102927042A (en) * | 2012-11-29 | 2013-02-13 | 无锡艾比德泵业有限公司 | Impeller of centrifugal pump |
| CN106321506B (en) * | 2015-07-06 | 2020-06-23 | 浙江三花汽车零部件有限公司 | Rotor assembly and electric drive pump |
| CN109878099B (en) * | 2019-04-22 | 2022-11-18 | 哈尔滨商业大学 | Film coating die and film coating method for fixed blade type propeller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294308A1 (en) * | 1987-06-05 | 1988-12-07 | Bombas Electricas, S.A. (Boelsa) | Bladed impellor for centrifugal pumps |
| CN2685616Y (en) * | 2003-03-20 | 2005-03-16 | 株式会社易威奇 | Back shell structure of magnetic pump |
| CN201433904Y (en) * | 2009-03-16 | 2010-03-31 | 广东凌霄泵业股份有限公司 | Vertical punching multilevel centrifugal pump adopting conical surface structure for fixing impeller |
| CN201934373U (en) * | 2011-03-09 | 2011-08-17 | 浙江新界泵业股份有限公司 | Impeller |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7290984B2 (en) * | 2005-05-26 | 2007-11-06 | Franklin Electric Co., Ltd. | Multistage pump |
| JP2008050958A (en) * | 2006-08-23 | 2008-03-06 | Iwaki Co Ltd | Self-priming pump |
-
2011
- 2011-03-09 CN CN201110056814A patent/CN102116312B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294308A1 (en) * | 1987-06-05 | 1988-12-07 | Bombas Electricas, S.A. (Boelsa) | Bladed impellor for centrifugal pumps |
| CN2685616Y (en) * | 2003-03-20 | 2005-03-16 | 株式会社易威奇 | Back shell structure of magnetic pump |
| CN201433904Y (en) * | 2009-03-16 | 2010-03-31 | 广东凌霄泵业股份有限公司 | Vertical punching multilevel centrifugal pump adopting conical surface structure for fixing impeller |
| CN201934373U (en) * | 2011-03-09 | 2011-08-17 | 浙江新界泵业股份有限公司 | Impeller |
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| Publication number | Publication date |
|---|---|
| CN102116312A (en) | 2011-07-06 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHIMGE PUMP INDUSTRY GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG SHIMGE PUMP INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: Shimge Pump Industry Group Co., Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: Zhejiang Shimge Pump Industry Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200624 Address after: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee after: SHIMGE PUMP (ZHEJIANG) Co.,Ltd. Address before: Wenling City, Taizhou City, Zhejiang Province town of Ocean City 317525 Industrial Zone Patentee before: SHIMGE PUMP INDUSTRY Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110706 Assignee: ZHEJIANG FANGXIN ELECTROMECHANICAL Co.,Ltd. Assignor: SHIMGE PUMP (ZHEJIANG) Co.,Ltd. Contract record no.: X2021330000151 Denomination of invention: Impeller for centrifugal pump Granted publication date: 20121017 License type: Common License Record date: 20210828 |