CN208651259U - A kind of impeller locking device - Google Patents
A kind of impeller locking device Download PDFInfo
- Publication number
- CN208651259U CN208651259U CN201821163191.3U CN201821163191U CN208651259U CN 208651259 U CN208651259 U CN 208651259U CN 201821163191 U CN201821163191 U CN 201821163191U CN 208651259 U CN208651259 U CN 208651259U
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- CN
- China
- Prior art keywords
- impeller
- tapered sleeve
- hub
- pump shaft
- impeller hub
- 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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Abstract
The utility model relates to a kind of impeller locking devices, impeller hub is provided on the impeller, the internal surface of hole of the impeller hub is cone structure, outer end face is provided with external screw thread below the impeller hub, the impeller hub inner sleeve connects tapered sleeve in succession, and the tapered sleeve outer surface is cone structure, matches with the internal surface of hole of impeller hub, the tapered sleeve inner surface and pump shaft are cooperatively connected, and outer end face is threadedly coupled impeller nut below the impeller hub；It is the utility model structure novel, simple, design is reasonable, impeller passes through impeller hub internal surface of hole cone structure, open type tapered sleeve is provided in wheel hub, tapered sleeve outer surface is processed as the conical surface and wheel hub matches, and tapered sleeve inner surface and pump shaft match, tapered sleeve is pressed into impeller hub with impeller nut, tapered sleeve and impeller is fitted close to hold tightly on pump shaft, completely will not weak pump shaft intensity, stronger, reliably impeller can be fixed on pump shaft.
Description
[technical field]
The utility model relates to water pump manufacturing field, specifically a kind of impeller locking device.
[background technique]
Currently, impeller is as the essential core component of water pump its traditional kind of drive mainly with key in the application of water pump
Slot and spline transmission, since the use of keyway weakens the intensity of axis, the fixation and biography of impeller especially in multistage pump utilization
It moves by significant limitation, fixes impeller with modes such as spacer and the shaft shoulders and fluting etc. largely reduced pump shaft intensity on axis
Many structures are brought to limit with fixed impeller.
[utility model content]
The purpose of this utility model seeks to solve above-mentioned deficiency, and provides a kind of impeller locking device, and structure is simple,
It is easy to make, wheel hub is provided on impeller, wheel hub internal surface of hole is processed as cone structure, and open type cone is provided in wheel hub
Set, tapered sleeve outer surface is processed as the conical surface and wheel hub matches, and tapered sleeve inner surface and pump shaft match, and tapered sleeve is pressed into leaf with impeller nut
Take turns wheel hub, be fitted close tapered sleeve and impeller and hold tightly on pump shaft, completely will not weak pump shaft intensity.
A kind of impeller locking device, including impeller 1, impeller hub 2, pump shaft 3 and tapered sleeve 4 are designed to achieve the above object,
It is provided with impeller hub 2 on the impeller 1, the internal surface of hole 7 of the impeller hub 2 is cone structure, under the impeller hub 2
Square outer end face is provided with external screw thread 8, and 2 inner sleeve of impeller hub connects tapered sleeve 4 in succession, and 4 outer surface of tapered sleeve is cone structure,
It is matched with the internal surface of hole 7 of impeller hub 2, and 4 inner surface of tapered sleeve and pump shaft 3 are cooperatively connected, under the impeller hub 2
Square outer end face is threadedly coupled impeller nut 5.
The impeller 1 and the integrally welded structure of impeller hub 2.
Tapered sleeve opening 6 is provided on the tapered sleeve 4.
The contact surface of the pump shaft 3 and the tapered sleeve 4 is rubbing surface.
The utility model is compared with the existing technology, structure novel, simple, and rationally, impeller passes through in impeller hub hole for design
Surface cone structure is provided with open type tapered sleeve in wheel hub, and tapered sleeve outer surface is processed as the conical surface and wheel hub matches, table in tapered sleeve
Face and pump shaft match, and tapered sleeve is pressed into impeller hub with impeller nut, are fitted close tapered sleeve and impeller and hold tightly on pump shaft, complete
Entirely will not weak pump shaft intensity, stronger, reliably impeller can be fixed on pump shaft, be worthy of popularization.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1, impeller, 2, impeller hub, 3, pump shaft, 4, tapered sleeve, 5, impeller nut, 6, tapered sleeve opening, 7, table in hole
Face, 8, external screw thread.
[specific embodiment]
The utility model is made with reference to the accompanying drawing further explained below:
As shown in Fig. 1, the utility model includes: intake impeller 1, impeller hub 2, pump shaft 3, tapered sleeve 4 and impeller nut
5, impeller hub 2, the impeller 1 and the integrally welded structure of impeller hub 2, the impeller hub 2 are provided on the impeller 1
Internal surface of hole 7 be cone structure, the 2 lower section outer end face of impeller hub is provided with external screw thread 8,2 inner sleeve of impeller hub
Tapered sleeve 4 is connect in succession, tapered sleeve opening 6 is provided on the tapered sleeve 4,4 outer surface of tapered sleeve is cone structure, with impeller hub
2 internal surface of hole 7 matches, and 4 inner surface of tapered sleeve and pump shaft 3 are cooperatively connected, the 2 lower section outer end face screw thread of impeller hub
Connect impeller nut 5.The impeller nut 5 is provided with internal screw thread, and tapered sleeve 4 is pressed into impeller hub 2 with impeller nut 5, due to
Tapered sleeve opening 6 is provided on tapered sleeve 4, tapered sleeve 4 is deformed to be fitted close with impeller and hold tightly on pump shaft 3 when indentation, by impeller
Frictional force is fixed and generated, is driven by this frictional force.
The preferred mode of the utility model: the contact surface of the pump shaft 3 and the tapered sleeve 4 is rubbing surface.Rubbing surface is complete
Will not weak pump shaft 3 intensity, and stronger, reliably impeller can be fixed on pump shaft 3.
The utility model is simultaneously not limited to the embodiments described above, and other any spirit without departing from the utility model are real
Made changes, modifications, substitutions, combinations, simplifications under matter and principle, should be equivalent substitute mode, be included in practical
Within novel protection scope.
Claims (4)
1. a kind of impeller locking device, it is characterised in that: including impeller (1), impeller hub (2), pump shaft (3) and tapered sleeve (4), institute
It states and is provided on impeller (1) impeller hub (2), the internal surface of hole (7) of the impeller hub (2) is cone structure, the impeller
Outer end face is provided with external screw thread (8) below wheel hub (2), and impeller hub (2) inner sleeve connects tapered sleeve (4) in succession, the tapered sleeve (4)
Outer surface is cone structure, is matched with the internal surface of hole (7) of impeller hub (2), tapered sleeve (4) inner surface and pump shaft
(3) it is cooperatively connected, outer end face is threadedly coupled impeller nut (5) below the impeller hub (2).
2. impeller locking device according to claim 1, which is characterized in that the impeller (1) and impeller hub (2) are welded
It is into a single integrated structure.
3. impeller locking device according to claim 1 or 2, which is characterized in that be provided with tapered sleeve on the tapered sleeve (4) and open
Mouth (6).
4. impeller locking device according to claim 3, which is characterized in that the pump shaft (3) connects with the tapered sleeve (4)
Contacting surface is rubbing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821163191.3U CN208651259U (en) | 2018-07-23 | 2018-07-23 | A kind of impeller locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821163191.3U CN208651259U (en) | 2018-07-23 | 2018-07-23 | A kind of impeller locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651259U true CN208651259U (en) | 2019-03-26 |
Family
ID=65786091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821163191.3U Active CN208651259U (en) | 2018-07-23 | 2018-07-23 | A kind of impeller locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686297A (en) * | 2019-10-18 | 2020-01-14 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor, fan and lampblack absorber |
| CN111503045A (en) * | 2020-04-29 | 2020-08-07 | 杭州碱泵有限公司 | Structure for improving rigidity of rotor |
-
2018
- 2018-07-23 CN CN201821163191.3U patent/CN208651259U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686297A (en) * | 2019-10-18 | 2020-01-14 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor, fan and lampblack absorber |
| CN111503045A (en) * | 2020-04-29 | 2020-08-07 | 杭州碱泵有限公司 | Structure for improving rigidity of rotor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |