CN2643047Y - Fixation structure on shaft of impeller of punch multiple-stage centrifugal pump - Google Patents
Fixation structure on shaft of impeller of punch multiple-stage centrifugal pump Download PDFInfo
- Publication number
- CN2643047Y CN2643047Y CN 03270296 CN03270296U CN2643047Y CN 2643047 Y CN2643047 Y CN 2643047Y CN 03270296 CN03270296 CN 03270296 CN 03270296 U CN03270296 U CN 03270296U CN 2643047 Y CN2643047 Y CN 2643047Y
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- CN
- China
- Prior art keywords
- impeller
- hub
- axle
- sleeve
- taper
- 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.)
- Expired - Fee Related
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Abstract
The utility model is an improvement for a fixing structure on shaft of a punching multi-stage centrifugal pump impeller. The outer side of a hub 1 is jointed into a impeler 3 to form a component; the impeller component with a hub is arranged on a finished axle; the outer circle of the hub is provided with a thread; a concial sleeve 4 with an opening taper is insterted on the outer sourface into a hole of the impeller of the hub. The sleeve is arranged on the finished axle to locate the sleeve between the hub and the finished axle. Finally a nut 5 connected with the hub (outer circle with thread) frimly; the taper sleeve is pressed between the hub and the finished axle firmly. The impeller and the finished transmit torque depending onthe static friction between the hub and the finished axle and the taper sleeve. The taper of the opening conial sleeve is consistant with a hole on the taper.The inner hole of the opening conial sleeve is identical with the size of the finished axle basically and adopts clearance matching. Since the utility model changes the structre of the axel and the spline of the impeller, the device effectively improves the strenth of the shaft and the impeller so as to prolong the working life of the product and further improve the quality of product as well reduce the production cost.
Description
Technical field
The utility model is the improvement to impeller fixed structure on axle of punching press multistage centrifugal pump.
Background technique
Existing punching press multistage centrifugal pump, its impeller fixing and impeller on axle adopts the splined structure with the moment of torsion transmission of axle; There is following shortcoming in this structure: 1 owing to roll extrusion spline on axle becomes splined shaft, thereby has weakened the rigidity and the intensity of axle; If there are defective in the material and the quenching with Subsequent tempering of axle, can make some high-power high-lift punching press multistage pumps the off-axis phenomenon occur.To such an extent as to 2 this connections often cause the splined hole on the impeller wearing and tearing to occur and the phenomenon that impeller damages occurs.The press tool expense in the roll die of 3 upper spline grooves and impeller upper spline hole is higher, and this has just increased the cost of product.
Summary of the invention
The purpose of this novel patent is to provide the new-type fixed connection structure of a kind of punching press impeller on axle, to solve the shortcoming that prior art exists.
A kind of impeller of punching press multistage centrifugal pump fixed structure on axle includes axle, impeller, it is characterized in that, axle is an optical axis; The fixedly connected impeller in the wheel hub outside, the wheel hub cylindrical is threaded; The impeller set that will have wheel hub is gone into optical axis, and an outer split conical sleeve of wearing tapering inserts in the hole of impeller hub, and is enclosed within on the optical axis, and external application one nut is connected with the screw threads for fastening that the hub cylindrical has.
The tapering in hole is consistent on the tapering of split conical sleeve and the impeller hub; The split conical sleeve endoporus is consistent with optical axis base dimension, adopts Spielpassung.
The utility model is to change former splined shaft into optical axis, no longer go out splined hole on the impeller simultaneously, on impeller, fix the wheel hub of a band tapered hole, the wheel hub cylindrical has screw thread, the impeller set that will have wheel hub is gone into optical axis, again split conical sleeve is pushed in the impeller hub, be screwed in a nut and compress taper sheath on the hub.Fixing and the impeller of impeller on axle leans on taper sheath and the static friction of the two to realize with the transmission of axle moment of torsion fully.
The utility model is owing to change the spline structure of axle and impeller, the new-type fixed connection structure of a kind of punching press impeller on axle is provided, improved the intensity of axle and impeller effectively, thereby prolonged the working life of product, further improve the quality of product, reduce production costs simultaneously.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is split conical sleeve structural representations.
Accompanying drawing 3 is nut structure schematic representation.
1 wheel hub, 2 optical axises, 3 impellers, 4 split conical sleeves, 5 nuts.
Embodiment
A kind of impeller of punching press multistage centrifugal pump fixed structure on axle, wheel hub 1 outside is welded on becomes an assembly on the impeller 3, and the impeller assembly that will have wheel hub is sleeved on the optical axis 2, and the wheel hub cylindrical is threaded; The split conical sleeve 4 of wearing tapering is outward inserted in the hole of impeller hub, and be enclosed within on the optical axis, be located between wheel hub and the optical axis, at last nut 5 and hub (cylindrical is threaded) are fastenedly connected, taper sheath is pressed between hub and the optical axis.Impeller and optical axis are exactly to come transmitting torque by the static friction between they and the taper sheath.The tapering in hole is consistent on the tapering of split conical sleeve and the impeller hub.The split conical sleeve endoporus is consistent with optical axis base dimension, adopts Spielpassung.
Claims (3)
1, a kind of impeller of punching press multistage centrifugal pump fixed structure on axle includes axle, impeller, it is characterized in that, axle is an optical axis; The fixedly connected impeller in the wheel hub outside, the wheel hub cylindrical is threaded; The impeller set that will have wheel hub is gone into optical axis, and an outer split conical sleeve of wearing tapering inserts in the hole of impeller hub, and is enclosed within on the optical axis, and external application one nut and the screwed hub of cylindrical are fastenedly connected.
According to impeller fixed structure on axle of the punching press multistage centrifugal pump under the claim 1, it is characterized in that 2, the tapering in hole is consistent on the tapering of split conical sleeve and the impeller hub.
3, according to impeller fixed structure on axle of the punching press multistage centrifugal pump under claim 1 or 2, it is characterized in that the split conical sleeve endoporus is consistent with optical axis base dimension, adopt Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270296 CN2643047Y (en) | 2003-09-23 | 2003-09-23 | Fixation structure on shaft of impeller of punch multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270296 CN2643047Y (en) | 2003-09-23 | 2003-09-23 | Fixation structure on shaft of impeller of punch multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643047Y true CN2643047Y (en) | 2004-09-22 |
Family
ID=34300279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270296 Expired - Fee Related CN2643047Y (en) | 2003-09-23 | 2003-09-23 | Fixation structure on shaft of impeller of punch multiple-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643047Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741556A (en) * | 2009-12-11 | 2012-10-17 | 诺沃皮尼奥内有限公司 | Composite rings for impeller-shaft fitting |
| CN103075362A (en) * | 2011-10-25 | 2013-05-01 | 成都槟果科技有限公司 | Water pump impeller |
| CN104847686A (en) * | 2015-04-27 | 2015-08-19 | 江苏金通灵流体机械科技股份有限公司 | Torque transmission structure of impeller and main shaft of draught fan achieving high rotating speed |
| CN105179271A (en) * | 2014-06-02 | 2015-12-23 | 依必安派特穆尔芬根股份有限公司 | Radial or diagonal ventilator |
| US9797255B2 (en) | 2011-12-14 | 2017-10-24 | Nuovo Pignone S.P.A. | Rotary machine including a machine rotor with a composite impeller portion and a metal shaft portion |
| US9810230B2 (en) | 2009-05-08 | 2017-11-07 | Nuovo Pignone Srl | Impeller for a turbomachine and method for attaching a shroud to an impeller |
| US9810235B2 (en) | 2009-11-23 | 2017-11-07 | Massimo Giannozzi | Mold for a centrifugal impeller, mold inserts and method for building a centrifugal impeller |
| US9816518B2 (en) | 2009-11-23 | 2017-11-14 | Massimo Giannozzi | Centrifugal impeller and turbomachine |
| US11162505B2 (en) | 2013-12-17 | 2021-11-02 | Nuovo Pignone Srl | Impeller with protection elements and centrifugal compressor |
| WO2023065413A1 (en) * | 2021-10-22 | 2023-04-27 | 台州韩进泵业有限公司 | Impeller device for centrifugal pump |
-
2003
- 2003-09-23 CN CN 03270296 patent/CN2643047Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9810230B2 (en) | 2009-05-08 | 2017-11-07 | Nuovo Pignone Srl | Impeller for a turbomachine and method for attaching a shroud to an impeller |
| US9810235B2 (en) | 2009-11-23 | 2017-11-07 | Massimo Giannozzi | Mold for a centrifugal impeller, mold inserts and method for building a centrifugal impeller |
| US9816518B2 (en) | 2009-11-23 | 2017-11-14 | Massimo Giannozzi | Centrifugal impeller and turbomachine |
| CN102741556A (en) * | 2009-12-11 | 2012-10-17 | 诺沃皮尼奥内有限公司 | Composite rings for impeller-shaft fitting |
| CN103075362A (en) * | 2011-10-25 | 2013-05-01 | 成都槟果科技有限公司 | Water pump impeller |
| US9797255B2 (en) | 2011-12-14 | 2017-10-24 | Nuovo Pignone S.P.A. | Rotary machine including a machine rotor with a composite impeller portion and a metal shaft portion |
| US11162505B2 (en) | 2013-12-17 | 2021-11-02 | Nuovo Pignone Srl | Impeller with protection elements and centrifugal compressor |
| CN105179271A (en) * | 2014-06-02 | 2015-12-23 | 依必安派特穆尔芬根股份有限公司 | Radial or diagonal ventilator |
| CN104847686A (en) * | 2015-04-27 | 2015-08-19 | 江苏金通灵流体机械科技股份有限公司 | Torque transmission structure of impeller and main shaft of draught fan achieving high rotating speed |
| WO2023065413A1 (en) * | 2021-10-22 | 2023-04-27 | 台州韩进泵业有限公司 | Impeller device for centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040922 Termination date: 20091023 |