CN201137586Y - Keyless connection blade wheel component - Google Patents
Keyless connection blade wheel component Download PDFInfo
- Publication number
- CN201137586Y CN201137586Y CNU2007201991632U CN200720199163U CN201137586Y CN 201137586 Y CN201137586 Y CN 201137586Y CN U2007201991632 U CNU2007201991632 U CN U2007201991632U CN 200720199163 U CN200720199163 U CN 200720199163U CN 201137586 Y CN201137586 Y CN 201137586Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- shaft
- sleeve
- cushion block
- hole
- 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 relates to a keyless connection impeller component, which comprises an impeller and a pump shaft, wherein a conical shaft hole is arranged on an axis of the impeller, one end of the pump shaft is equipped with a shaft shoulder, the front end of the pump shaft is equipped with a cone sleeve, a limit sleeve is arranged between the cone sleeve and the shaft shoulder, an impeller is sleeved on the cone sleeve, the impeller is connected with front thread of the pump shaft through a nut, and a cushion block is arranged between the impeller and the nut. The sum of the length of the cone sleeve and the limit sleeve is smaller than the length of the conical shaft hole of the impeller. A thread hole is arranged in an adjoining plane of the impeller and the cushion block paralleling to the axial direction of the impeller, a via hole is arranged on the cushion block, and one end of the cushion block is equipped with a pushing sleeve. The utility model uses a matched structure of the conical shaft hole and the cone sleeve to connect the impeller and the shaft, a nut which passes through the shaft end is closely pressed to achieve a tightening effort, the thread hole which is arranged on the end portion of the impeller is capable of being conveniently disassembled, a key is not used to connect, the impeller is evenly forced, the working is steady, and the dismounting is convenient.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to pump, particularly a kind of keyless impeller assembly.
Background technique:
In the prior art, the impeller of water pump is realized being connected by key with pump shaft, the machined surface quality of key junction surface is had relatively high expectations, simultaneously, and discontinuity during work, advocate to concentrate on spline root and spline root, the impeller bearing capacity is reduced, very easily fatigue failure of impeller when causing work, load can not withstand shocks, and situations such as key is pressed erosion, fractureed, keyway distortion often occur, influence the service behaviour of pump.
Summary of the invention:
The purpose of this utility model provides a kind of keyless impeller assembly, and described this keyless impeller assembly will solve impeller and the key linkage structure discontinuity of pump shaft in the prior art, the technical problem that bearing capacity is low.
This keyless impeller assembly of the present utility model is made of impeller and pump shaft, wherein, the axle center of described impeller is provided with the taper axis hole, one end of described pump shaft is provided with the shaft shoulder, the front end sleeve of pump shaft is provided with a tapered sleeve, is provided with a stop collar between the described tapered sleeve and the shaft shoulder, and impeller set is located on the tapered sleeve, impeller is threaded with the front end of pump shaft by nut, is provided with cushion block between impeller and the described nut.
Further, the length sum of described tapered sleeve and stop collar is less than the length of the taper axis hole of impeller.
Further, impeller is parallel to it and axially is provided with tapped hole in the approximal surface of itself and cushion block, and described cushion block is provided with through hole.
Further, one end of described cushion block is provided with one and puts pushing sleeve, the described end diameter of putting the external diameter of pushing sleeve less than the taper axis hole of impeller, its internal diameter are put the length of the length sum of pushing sleeve, tapered sleeve and stop collar greater than the taper axis hole of impeller greater than the shaft section diameter that combines with impeller.
Working principle of the present utility model is: in the time of in assembly process, stop collar is put into axle, on the axle of then tapered sleeve being packed into, impeller packed into to hold out against on the tapered sleeve, loads onto cushion block and nut at last.When upper cap nut, use torque wrench, thereby guarantee impeller, tapered sleeve, axle, the three produces static friction and is far longer than kinetic friction, makes the three do as a whole motion together.During dismounting, nut and cushion block are taken down, put into and put pushing sleeve and cushion block, in the tapped hole with nut bolt precession cushion block and impeller, spin nut unloads impeller then.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is applied to connecting of impeller and axle with the taper axis hole and the cooperating structure of tapered sleeve, and the nut by axle head compresses realizes fastening effect, tapped hole is set with for convenience detach in the impeller end, do not adopt key connecting, make impeller stressed evenly, working stability, easy accessibility.
Description of drawings:
Fig. 1 is the structural representation of keyless impeller assembly of the present utility model.
Fig. 2 is the cross-sectional view of putting pushing sleeve in the keyless impeller assembly of the present utility model.
Embodiment:
As depicted in figs. 1 and 2, keyless impeller assembly of the present utility model is made of impeller 1 and pump shaft 2, wherein, on described impeller 1, be coaxially arranged with the taper axis hole with it, described pump shaft 2 one ends are provided with the shaft shoulder, described impeller 1 is arranged at an end of described pump shaft 2 by the tapered sleeve 3 and the shaft shoulder, be provided with stop collar 4 between the inherent described tapered sleeve 3 of described impeller taper axis hole one end and the described shaft shoulder, be provided with nut 5 in described pump shaft 2 ends, be provided with cushion block 6 between the described nut 5 and the described impeller taper axis hole the other end.
Further, the length sum of described tapered sleeve 3 and described stop collar 4 is less than the length of described impeller taper axis hole.
Further, be provided with tapped hole 7 at described impeller 1 vertically with the end that described cushion block 6 combines, correspondingly described cushion block 6 is provided with through hole.
Further, with the matching used end diameter of putting the external diameter of pushing sleeve 8 less than described impeller taper axis hole of described keyless impeller assembly, its internal diameter is greater than the shaft section diameter that combines with described impeller 1, described length of putting pushing sleeve 8, described tapered sleeve 3 and described stop collar 4 and greater than the length of described impeller taper axis hole.
Claims (4)
1. keyless impeller assembly, constitute by impeller and pump shaft, it is characterized in that: the axle center of described impeller is provided with the taper axis hole, one end of described pump shaft is provided with the shaft shoulder, the front end sleeve of pump shaft is provided with a tapered sleeve, is provided with a stop collar between the described tapered sleeve and the shaft shoulder, and impeller set is located on the tapered sleeve, impeller is threaded with the front end of pump shaft by nut, is provided with cushion block between impeller and the described nut.
2. keyless impeller assembly as claimed in claim 1 is characterized in that: the length sum of described tapered sleeve and stop collar is less than the length of the taper axis hole of impeller.
3. keyless impeller assembly as claimed in claim 1 is characterized in that: impeller is parallel to it and axially is provided with tapped hole in the approximal surface of itself and cushion block, described cushion block is provided with through hole.
4. keyless impeller assembly as claimed in claim 1, it is characterized in that: an end of described cushion block is provided with one and puts pushing sleeve, the described end diameter of putting the external diameter of pushing sleeve less than the taper axis hole of impeller, its internal diameter is put the length of the length sum of pushing sleeve, tapered sleeve and stop collar greater than the taper axis hole of impeller greater than the shaft section diameter that combines with impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991632U CN201137586Y (en) | 2007-12-12 | 2007-12-12 | Keyless connection blade wheel component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991632U CN201137586Y (en) | 2007-12-12 | 2007-12-12 | Keyless connection blade wheel component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137586Y true CN201137586Y (en) | 2008-10-22 |
Family
ID=40038273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201991632U Expired - Fee Related CN201137586Y (en) | 2007-12-12 | 2007-12-12 | Keyless connection blade wheel component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137586Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915256A (en) * | 2010-08-12 | 2010-12-15 | 中国船舶重工集团公司第七○三研究所 | High-rotation-speed impeller and rotor linking mechanism |
| CN105445027A (en) * | 2015-11-26 | 2016-03-30 | 哈尔滨电机厂有限责任公司 | Waterpower testing stand shaft end assembling structure having self-centering function |
| CN106640751A (en) * | 2016-11-14 | 2017-05-10 | 无锡市乾泰金属构件厂 | High-stability fan impeller |
| CN109139546A (en) * | 2018-11-16 | 2019-01-04 | 四川聚亿重工有限公司 | A kind of connection structure of turbocompressor impeller and axis |
-
2007
- 2007-12-12 CN CNU2007201991632U patent/CN201137586Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915256A (en) * | 2010-08-12 | 2010-12-15 | 中国船舶重工集团公司第七○三研究所 | High-rotation-speed impeller and rotor linking mechanism |
| CN105445027A (en) * | 2015-11-26 | 2016-03-30 | 哈尔滨电机厂有限责任公司 | Waterpower testing stand shaft end assembling structure having self-centering function |
| CN106640751A (en) * | 2016-11-14 | 2017-05-10 | 无锡市乾泰金属构件厂 | High-stability fan impeller |
| CN109139546A (en) * | 2018-11-16 | 2019-01-04 | 四川聚亿重工有限公司 | A kind of connection structure of turbocompressor impeller and axis |
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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: 20081022 Termination date: 20100112 |