CN201021677Y - A locking device for shielding pump leaf wheel - Google Patents
A locking device for shielding pump leaf wheel Download PDFInfo
- Publication number
- CN201021677Y CN201021677Y CNU2007200337612U CN200720033761U CN201021677Y CN 201021677 Y CN201021677 Y CN 201021677Y CN U2007200337612 U CNU2007200337612 U CN U2007200337612U CN 200720033761 U CN200720033761 U CN 200720033761U CN 201021677 Y CN201021677 Y CN 201021677Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- locking device
- pump
- thrust
- motor shaft
- 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 discloses a canned motor pump impeller locking device, and relates to mechanical engineering micro pump field. The utility model is mainly used for a micro shielding pump and a micro centrifugal pump etc. the pump is applied to adding pressure for landscape engineering and hotels. The shielding pump and the centrifugal pump are mainly that the impeller is arranged with locking device, and the device is a splined thin wall taper sleeve, and is positioned between the impeller and the motor shaft, through the taper structure itself, the action for connecting the impeller and the motor shaft can be played. The utility model is characterized in that the thrust thin wall round sleeve is arranged, the thrust end is opened; the other end is opened with a round hole. The surface and the inside transitively connects and forms a spline through two arcs, the surface has a certain taper, therefore plays a connection action.
Description
Affiliated technical field
The utility model relates to mechanical micropump field, is mainly used in minisize shielding pump, micro centrifugal pump etc.
Background technique
At present, the locking of known minisize shielding pump, micro centrifugal pump impeller all realizes by impeller nut.By the internal thread of impeller nut and the outside thread on the motor shaft extension impeller is locked, because impeller nut is opposite with the motor shaft sense of rotation with the screw thread that the motor shaft extension connects, therefore, the connecting thread of impeller nut and motor shaft extension revolves tighter and tighter during the motor shaft rotation, thereby reaches the effect of carry-over moment.In minisize shielding pump, micro centrifugal pump, use this impeller locking device, because the diameter of the impeller of micropump own is less, make runner also less, but impeller nut occupies bigger flow channel space at the impeller inlet place, hinders to enter flowing of impeller inner fluid, makes mobile confusion in the impeller, cause very big loss of head, motor passes to the also utilization feedwater work done fully of power of impeller simultaneously, has caused the loss of power of motor, and the efficient of pump is reduced.
Summary of the invention
Enter flowing of impeller inner fluid in order to overcome existing impeller locking device obstruction, cause very big loss of head, caused the loss of power of motor simultaneously, finally make the shortcoming of the efficient reduction of pump, the utility model provides a kind of canned motorpump impeller locking device, and this locking device can not only well be locked impeller, carry-over moment, and do not hinder flowing of impeller inner fluid, do not cause loss of head, can make full use of power that motor passes to impeller, thereby improve the efficient of pump the water work done.
The technological scheme that its technical problem that solves the utility model adopts is: between impeller and motor shaft, a locking device is set, proportional relation between the length L of locking device and the diameter D, proportion is L/D=1.0～3.0, and this device is for having the thin-walled circle cover of thrust, thrust end opening, the other end has a circular hole, its surface and inside are connected to form spline by two arc transition, and the locking device surface has certain tapering, and range of taper is 1: 10～1: 100.During installation, a round-meshed end links to each other with impeller, insertion along with thin-walled circle cover, the outer surface tapering of locking device is increasing, can work the purpose that connects impeller, locking impeller, thrust device plays and prevents that locking device from owing to the stressed impeller inside that embeds, causing motor axle body and impeller friction, causes the damage of impeller and motor axle body.An end that has thrust links to each other with the motor axle body, because tapering reduces to a round-meshed end gradually from the thrust end, therefore the motor axle body is more and more tighter when having circular hole one end and insert from the thrust end, and the double action by tapering and spline reaches fastening and effect carry-over moment.Because minisize shielding pump motor axle is hollow, the effect of circular hole is to make the fluid of motor axle body hollow parts to circulate, and plays the effect of cooling motor axle.Utilize this spline thin-walled taper sheath that has thrust to rise and connect impeller and motor shaft, can save flow channel space shared when using impeller nut to connect, can make the impeller inner fluid pass through smoothly, connect simultaneously and fastening effect also fine, can all be used to carry liquid to motor institute work, can not waste energy, thereby improve the efficient of pump.
The beneficial effects of the utility model are, can save flow channel space shared when using impeller nut, make fluid pass through smoothly, connect simultaneously and fastening effect fine, can all be used to carry liquid to motor institute work, can not waste energy, thereby improve the efficient of pump.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that connection of the present utility model is always schemed.
As shown in the figure, 1. impellers among the figure, 2. impeller locking device, 3. motor shaft.
Fig. 2 is an impeller locking device plan view, and Fig. 3 is an impeller locking device side view.
Fig. 4 is the I--I cutaway view Amplified image of Fig. 2.
Embodiment
As shown in fig. 1, position of the present utility model is positioned between impeller (1) and the motor shaft (3), between impeller and motor shaft, a thin-walled circle cover (2) that has thrust is set, the thrust end opening, the other end has a circular hole, and its surface and inside are connected to form spline by two arc transition, and the surface has certain tapering.During installation, a round-meshed end links to each other with impeller, insertion along with thin-walled circle cover, the outer surface tapering of locking device is increasing, can work the purpose that connects impeller, locking impeller, thrust device plays and prevents that locking device from owing to the stressed impeller inside that embeds, causing motor shaft and impeller friction, causes the damage of impeller and motor shaft.An end that has thrust links to each other with motor shaft, because tapering reduces to a round-meshed end gradually from the thrust end, therefore motor shaft is more and more tighter when having circular hole one end and insert from the thrust end, and the double action by tapering and spline reaches fastening and effect carry-over moment.Because minisize shielding pump motor axle is hollow, the effect of circular hole is to make the fluid of motor axle body hollow parts to circulate, and plays the effect of cooling motor axle.
Claims (5)
1. canned motorpump impeller locking device, it is characterized in that: between impeller and motor shaft, described impeller locking device (2) locates to be provided with a thin-walled circle cover that has thrust, the thrust end opening, the other end has a circular hole, it all is that two arc transition are connected with inside that locking device (3) is located its surface, arc transition connects makes the locking device inner and outer surface form spline, locking device (1) is located inner and outer surface and is all had certain tapering, proportional relation between the length of locking device and the diameter reaches the effect of fastening impeller and transmission motor shaft moment by the double action of tapering and spline.
2. canned motorpump impeller locking device according to claim 1 is characterized in that: impeller locking device (1) is located the surface and is had certain taper, and range of taper is 1: 10～1: 100.
3. canned motorpump impeller locking device according to claim 1 is characterized in that: impeller locking device (2) locates to have thrust device, the protection thrust device.
4. canned motorpump impeller locking device according to claim 1 is characterized in that: it is that two arc transition connect that impeller locking device (3) is located, and protects this place's circular arc.
5. canned motorpump impeller locking device according to claim 1 is characterized in that: proportional relation between the length L of impeller locking device and the diameter D, proportion are L/D=1.0～3.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200337612U CN201021677Y (en) | 2007-01-23 | 2007-01-23 | A locking device for shielding pump leaf wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200337612U CN201021677Y (en) | 2007-01-23 | 2007-01-23 | A locking device for shielding pump leaf wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021677Y true CN201021677Y (en) | 2008-02-13 |
Family
ID=39089087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200337612U Expired - Fee Related CN201021677Y (en) | 2007-01-23 | 2007-01-23 | A locking device for shielding pump leaf wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021677Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023056602A1 (en) * | 2021-10-08 | 2023-04-13 | 绿美泵业有限公司 | Micro canned pump based on machine-pump integrated high heat resistance |
-
2007
- 2007-01-23 CN CNU2007200337612U patent/CN201021677Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023056602A1 (en) * | 2021-10-08 | 2023-04-13 | 绿美泵业有限公司 | Micro canned pump based on machine-pump integrated high heat resistance |
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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: 20080213 |