CN105422503A - Combined impeller - Google Patents
Combined impeller Download PDFInfo
- Publication number
- CN105422503A CN105422503A CN201511024751.8A CN201511024751A CN105422503A CN 105422503 A CN105422503 A CN 105422503A CN 201511024751 A CN201511024751 A CN 201511024751A CN 105422503 A CN105422503 A CN 105422503A
- Authority
- CN
- China
- Prior art keywords
- impeller
- impeller plate
- plate
- card
- sidepiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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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 belongs to the field of equipment for small-flow and low-lift pumps for conveying high-concentration and high-viscosity materials containing high-hardness solid granules and particularly relates to a combined impeller. The combined impeller comprises an impeller shaft and an end impeller plate coaxially and fixedly connected to one end of the impeller shaft, and more than one side impeller plate is coaxially distributed at the other end, opposite to the end where the impeller shaft is located, of the end impeller plate; adjacent impeller plates are spaced and uniformly distributed, matching gaps among the adjacent impeller plates form guide channels for communicating a pump body outlet, a liquid inlet hole used for communicating a pump body suction chamber and the guide channels coaxially is formed in the axis position of each side impeller plate and penetrates through each plate body; mounting holes are formed in the end impeller plates, thread holes are coaxially formed in the side impeller plates in one-to-one correspondence, and a thread matching relation is formed. The combined impeller is more convenient and reliable in processing and later dismounting maintenance, and the use cost can be effectively reduced.
Description
Technical field
The invention belongs to conveying high concentration, high viscosity and containing the small flow low-lift pump apparatus field of high hardness solid particle material, be specifically related to a kind of combination type blade wheel.
Background technique
Existing fluid delivery pump mostly is centrifugal pump, and its blade wheel structure is divided into double shrouded wheel and unshrouded impeller two kinds, and all has blade.Blade wheel structure generally includes plate-like wheel body, and is positioned at the honeycomb duct along wheel body radial arrangement formed by blade of its wheel body, and the import of honeycomb duct runs through wheel body one side end face and is communicated with pump housing suction chamber; Rely on the High Rotation Speed of impeller during use, thus drive the medium in honeycomb duct to produce centrifugal phenomenon, constantly throw away medium in honeycomb duct and the object continuing to draw medium in pump housing suction chamber to reach.Due to the performance characteristic of the centrifugal conveying of above-mentioned impeller, on the one hand, form the impeller blade of honeycomb duct in mass transport with material bump contact, very easily there is blade wear situation; Especially in material containing hardness high solid particle time, wear phenomenon is more serious, needs to carry out disassembling, assembling and replacing operation to whole Unitary Impeller frequently, brings the sharply increase of user cost thereupon.On the other hand, owing to adopting blade impellers, impeller cavitation phenomenons is inevitable, and especially when carrying high temperature, having certain gas content material, cavitation is more obvious, and extremely difficulty meets flow at 1m
3/ below h, the similar small flow low lift operating mode of lift within 30m.In addition, existing above-mentioned blade wheel structure is substantially all cast or be welded, and due to factor impacts such as internal stresss, impeller can produce a certain amount of distortion in casting or welding process, also can have a negative impact to the actual applying working condition of impeller thereupon.
Summary of the invention
Object of the present invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of rational in infrastructure and combination type blade wheel of practicality is provided, its impeller distortion impeller can avoided to adopt the modes such as traditional integrally casting or welding and cause and dismounting high cost situation, and effectively can reduce the cavitation phenomenons of pump, thus solve current small flow, low lift, high viscosity, containing high hardness solid particle, the difficult problem having the mass transport of certain gas content; It is more reliably convenient that the present invention's processing and later stage dismounting are safeguarded, user cost also can effectively be reduced.
For achieving the above object, present invention employs following technological scheme:
A kind of combination type blade wheel, comprises impeller shaft and is coaxially fixed in the end impeller plate at this impeller shaft one end place, have the more than one sidepiece impeller plate by the other end of the relative impeller shaft place end of the end impeller plate is coaxially arranged; Be spaced uniform between each adjacent fan-wheel dish, cooperation space between each adjacent fan-wheel dish forms the honeycomb duct being communicated with pump housing outlet, and the axle center place of each sidepiece impeller plate coaxially runs through disk body and offers inlet opening for being communicated with pump housing suction chamber and honeycomb duct; The end impeller plate offers mounting hole, the sidepiece impeller plate coaxially offers tapped hole with it one to one, between each, form screw-thread fit relation.
One end place for the cooperative end part impeller plate of described impeller shaft is furnished with the shaft shoulder, each mounting hole of one_to_one corresponding on the shaft shoulder and axially run through and arrange screw hole; The end impeller plate coaxially runs through and arranges penetration hole, this penetration hole is inserted in the above-mentioned axial end of impeller shaft and forms seam between its hole end surface with the above-mentioned shaft shoulder and coordinate; Fastening screw trip bolt axially penetrates screw hole and forms screw-thread fit successively and between mounting hole and tapped hole.
All coaxially with tapped hole on each sidepiece impeller plate be convexly equipped with for forming the above-mentioned cylindrical boss coordinating space between adjacent fan-wheel dish, the projection axis of orientation of each cylindrical boss to direction place, pointed end impeller plate place.
The card of the described end impeller plate and the sidepiece impeller plate is all arranged with the groove for increasing card frictional force and/or the fin that is convexly equipped with for increasing card frictional force.
Described tapped hole is four and card circumference along the sidepiece impeller plate is uniform; Each groove on the sidepiece impeller plate is four that flute length extends along card radial direction, and the equal correspondence of every bar groove is arranged in the card place between two tapped holes.
Described mounting hole is four and card circumference along the end impeller plate is uniform; Each groove on the impeller plate of end is four that flute length extends along card radial direction, and the equal correspondence of every bar groove is arranged in the card region place between two mounting holes.
Beneficial effect of the present invention is:
1) the wheel body deformability that the impeller, having abandoned the traditional integrally casting of employing or welding fabrication causes and dismounting high cost situation, by what look for another way, existing integrated type centrifugal pump impeller is all transformed to disc type combined impeller of the present invention, thus promoting the convenient reliability of its processing and later stage dismounting maintenance, user cost also can effectively be reduced.In other words, on the one hand, by above-mentioned dismantled and assembled structure, traditional wearing part such as blade etc. that is easy to is abandoned completely, and generation constructs with the screw-thread fit of rigidity, and the working life of structure can be significantly improved.On the other hand, even if cause a certain impeller plate serious friction to wear and tear because transporting the high solid particle of hardness, and when finally having influence on its actual use, also only need by dismantling the old impeller plate and the mode reinstalling the new impeller plate solves, the whole impeller of replacing without the need to entirety, replacement cost is obviously greatly reduced.
2), on the above-mentioned removable basis of the sidepiece impeller plate, the seam orientation type of the cooperative end part impeller plate, thus achieve the Fast-Maintenance of whole impeller and online dismounting effect.During specific operation, and when the sidepiece impeller plate needs dismounting to safeguard because of fretting wear, namely reach replacing effect by the solid screw of screwed tightening; The end impeller plate in like manner, and only need when the end impeller plate more renewed, then rely on the cooperation of the seam on impeller shaft to realize quick position, and its operation is very efficient and convenient.
3) formation of the honeycomb duct, between each sidepiece impeller plate and between the sidepiece impeller plate and the end impeller plate can be multiple, or for directly to arrange slot in the card of adjacent fan-wheel dish, and use inserted block along above-mentioned slot and on the insertion impeller plate of radial direction, thus make to exist between each adjacent fan-wheel dish and coordinate space; Or for adopting independent stepped convex cylinder, make its cylinder two ends support the card of adjacent fan-wheel dish respectively, thus reach and make to be formed each other between adjacent fan-wheel dish to coordinate space.The preferred structure of the present invention is, on the one hand by the axial projection cylindrical boss of sidepiece impeller plate card, thus utilizes the length of cylindrical boss to form above-mentioned cooperation space.On the other hand, cylindrical boss is coaxially outward extending by the nose end of tapped hole, and in other words, tapped hole necessarily runs through cylindrical boss.Cylindrical boss top end tight abutment specify the impeller plate card place time, the bolt of above-mentioned screw-thread fit is inevitable to be covered by cylindrical boss completely, thus the medium avoided through honeycomb duct is to the erosion of this bolt, corrosion and andfrictional conditions, and then effectively improving the working life of screw-thread fit of the present invention, effect is very remarkable.
4), the layout of groove and/or fin, contribute to promoting honeycomb duct centrifugal " crawl " ability for medium, and then promote the task performance of corresponding centrifugal pump.During practical operation, consider the design of more employing grooves, Pocket Machining is more convenient on the one hand; On the other hand, compare and need projection and the fin structure taking original honeycomb duct space, groove also can give more honeycomb duct space, thus promotes the medium pump Movement Capabilities of centrifugal pump further, finally guarantees the high efficient and reliable working effect of whole equipment.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present invention;
Fig. 2 is the structural blast figure of Fig. 1;
Fig. 3 is the front schematic view of the end impeller plate;
Fig. 4 is the front schematic view of the sidepiece impeller plate.
Illustrate each label and concrete component names corresponding relation of the present invention is as follows:
A-groove
10-impeller shaft 11-shaft shoulder 12-screw hole
20-end impeller plate 21-penetration hole 22-mounting hole
30-sidepiece impeller plate 31-inlet opening 32-tapped hole 33-cylindrical boss
40-fastening screw trip bolt
Embodiment
For ease of understanding, composition graphs 1-4 herein, does following further describing to specific embodiment of the invention structure:
Specific embodiment of the invention structure as Figure 1-4, from respectively coaxially arranged impeller shaft 10, the end impeller plate 20 and the sidepiece impeller plate 30 from right to left of Fig. 1, between each with fastening screw trip bolt 40 axis wear and screw thread is each other affixed.Wherein, as shown in Figure 3, the end impeller plate 20 arranged penetration hole 21 and be set in the axial end of impeller shaft 10, and forming seam between the side card towards impeller shaft 10 of the end impeller plate 20 and the shaft shoulder 11 of impeller shaft 10 axial end and coordinate.The sidepiece impeller plate 30 is two in Fig. 1-2, certainly, can be during practical operation three, four even more, depending on concrete situation.The sidepiece impeller plate 30 relies on the cylindrical boss of four shown in Fig. 4 33 and with formation face between the end impeller plate 20 card against coordinating, and both gaps are configured for water conservancy diversion and the centrifugal honeycomb duct throwing away medium, each sidepiece impeller plate 30 all coaxially runs through arranges inlet opening 31, enters in honeycomb duct along this inlet opening 31 for external agency.
During practical set of the present invention, after each impeller plate is assembled vertically, wear with conehead socket head screw (being also fastening screw trip bolt 40) along corresponding screw hole 12, mounting hole 22 and tapped hole 32 and form screw-thread fit, finally forming integrative-structure.The pump housing be designed to the concentric pump housing, pump discharge the pump housing circle tangent line on.Under driven by motor or other External Force Acting, impeller obtains kinetic energy, medium to be conveyed is also the honeycomb duct that inlet opening 31 enters wheel body inside from impeller eye, under the effect of each impeller plate card frictional force, make medium produce centrifugal force, thus medium is constantly pumped along honeycomb duct along the tangent line aspect of the impeller plate.Each impeller plate card is with the groove a of radial arrangement, and main purpose is the frictional force in order to increase the both sides flow path wall forming honeycomb duct.
Adopt above-mentioned impeller manufacturing process of the present invention, impeller can be avoided to adopt the modes such as traditional integrally casting or welding and cause impeller distortion and dismounting high cost situation.Coordinate space by adopting rational each impeller plate and suitable groove structure is set, thus make material produce centrifugal force under the frictional force effect of corresponding card, and then reduce even to have stopped the old-fashioned wheel sheet mode of employing and the cavitation phenomenons that formed, obviously very meet at present for carrying high concentration, high viscosity and the development need of small flow low-lift pump apparatus field containing high hardness solid particle material.
Claims (6)
1. a combination type blade wheel, it is characterized in that: comprise impeller shaft (10) and be coaxially fixed in the end impeller plate (20) at this impeller shaft (10) one end place having the more than one sidepiece impeller plate (30) by the other end of relative impeller shaft (10) the place end of the end impeller plate (20) is coaxially arranged; Be spaced uniform between each adjacent fan-wheel dish, cooperation space between each adjacent fan-wheel dish forms the honeycomb duct being communicated with pump housing outlet, and the axle center place of each sidepiece impeller plate (30) coaxially runs through disk body and offers inlet opening (31) for being communicated with pump housing suction chamber and honeycomb duct; The end impeller plate (20) offers mounting hole (22), the sidepiece impeller plate (30) coaxially offers tapped hole (32) with it one to one, between each, forms screw-thread fit relation.
2. a kind of combination type blade wheel according to claim 1, it is characterized in that: one end place for the cooperative end part impeller plate (20) of described impeller shaft (10) is furnished with the shaft shoulder (11), axially running through at the upper each mounting hole of one_to_one corresponding (22) of the shaft shoulder (11), screw hole (12) is set; The end impeller plate (20) coaxially runs through and arranges penetration hole (21), this penetration hole (21) is inserted in the above-mentioned axial end of impeller shaft (10) and forms seam between its hole end surface with the above-mentioned shaft shoulder (11) and coordinate; Fastening screw trip bolt (40) axially penetrates screw hole (12) and forms screw-thread fit successively and between mounting hole (22) and tapped hole (32).
3. a kind of combination type blade wheel according to claim 1 and 2, it is characterized in that: each sidepiece impeller plate (30) is upper all coaxial with tapped hole (32) to be convexly equipped with for forming the above-mentioned cylindrical boss (33) coordinating space between adjacent fan-wheel dish, the projection axis of orientation of each cylindrical boss (33) to the pointed end impeller plate (20) direction, place place.
4. a kind of combination type blade wheel according to claim 3, is characterized in that: the card of the described end impeller plate (20) and the sidepiece impeller plate (30) is all arranged with the groove (a) for increasing card frictional force and/or the fin that is convexly equipped with for increasing card frictional force.
5. a kind of combination type blade wheel according to claim 4, is characterized in that: described tapped hole (32) is four and card circumference along the sidepiece impeller plate (30) is uniform; Each groove (a) on the sidepiece impeller plate (30) is for flute length is along four of card radial direction extension, and every bar groove (a) all correspondence is arranged in the card region place between two tapped holes (32).
6. a kind of combination type blade wheel according to claim 5, is characterized in that: described mounting hole (22) is four and card circumference along the end impeller plate (20) is uniform; Each groove (a) on the end impeller plate (20) is for flute length is along four of card radial direction extension, and every bar groove (a) all correspondence is arranged in the card region place between two mounting holes (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024751.8A CN105422503B (en) | 2015-12-30 | 2015-12-30 | A kind of combination type blade wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024751.8A CN105422503B (en) | 2015-12-30 | 2015-12-30 | A kind of combination type blade wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422503A true CN105422503A (en) | 2016-03-23 |
| CN105422503B CN105422503B (en) | 2019-03-22 |
Family
ID=55500962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511024751.8A Active CN105422503B (en) | 2015-12-30 | 2015-12-30 | A kind of combination type blade wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422503B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883085A (en) * | 2021-10-08 | 2022-01-04 | 江苏大学 | Sectional centrifugal pump back vane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156493A (en) * | 1994-06-10 | 1997-08-06 | 株式会社荏原制作所 | Centrifugal or mixed-flow turbine machinery |
| JP2004278311A (en) * | 2003-03-12 | 2004-10-07 | Ebara Corp | Centrifugal pump |
| CN201057170Y (en) * | 2007-05-11 | 2008-05-07 | 上海凯泉泵业（集团）有限公司 | Straight-hole low specific speed centrifugal pump impeller |
| CN102313392A (en) * | 2011-04-15 | 2012-01-11 | 林钧浩 | Pneumatic friction-heat-generation high-temperature air heater |
| US20150139828A1 (en) * | 2013-11-19 | 2015-05-21 | Charles Wayne Zimmerman | Two piece impeller centrifugal pump |
| CN205298049U (en) * | 2015-12-30 | 2016-06-08 | 合肥华升泵阀股份有限公司 | Combined type impeller |
-
2015
- 2015-12-30 CN CN201511024751.8A patent/CN105422503B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156493A (en) * | 1994-06-10 | 1997-08-06 | 株式会社荏原制作所 | Centrifugal or mixed-flow turbine machinery |
| JP2004278311A (en) * | 2003-03-12 | 2004-10-07 | Ebara Corp | Centrifugal pump |
| CN201057170Y (en) * | 2007-05-11 | 2008-05-07 | 上海凯泉泵业（集团）有限公司 | Straight-hole low specific speed centrifugal pump impeller |
| CN102313392A (en) * | 2011-04-15 | 2012-01-11 | 林钧浩 | Pneumatic friction-heat-generation high-temperature air heater |
| US20150139828A1 (en) * | 2013-11-19 | 2015-05-21 | Charles Wayne Zimmerman | Two piece impeller centrifugal pump |
| CN205298049U (en) * | 2015-12-30 | 2016-06-08 | 合肥华升泵阀股份有限公司 | Combined type impeller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883085A (en) * | 2021-10-08 | 2022-01-04 | 江苏大学 | Sectional centrifugal pump back vane |
| CN113883085B (en) * | 2021-10-08 | 2024-02-09 | 江苏大学 | Segment type centrifugal pump back vane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422503B (en) | 2019-03-22 |
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