CN2760302Y - Anti-loosening device for pump impeller - Google Patents
Anti-loosening device for pump impeller Download PDFInfo
- Publication number
- CN2760302Y CN2760302Y CN 200420104635 CN200420104635U CN2760302Y CN 2760302 Y CN2760302 Y CN 2760302Y CN 200420104635 CN200420104635 CN 200420104635 CN 200420104635 U CN200420104635 U CN 200420104635U CN 2760302 Y CN2760302 Y CN 2760302Y
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- CN
- China
- Prior art keywords
- impeller
- nut
- pump
- chuck
- locking
- 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 looseness prevention device for a pump impeller. A locking chuck (4) is arranged between the impeller (3) and an impeller nut (5); after the locking chuck (4) is tightly presses on the impeller (3) by the impeller nut (5), the side of the locking chuck (4) is tightly pressed on the external working surface of the impeller nut (5). The utility model has the characteristics of simple structure and easy and convenient processing and fabrication, can be matched with pumps with various impeller structural types, effectively prevents the impeller from falling off from a main shaft, avoids equipment damage, extends the maintenance-free period of each pump, reduces use cost, and thus, has strong popularization and application value.
Description
Technical field
The utility model belongs to the pumping unit technical field, is specifically related to a kind of various impeller of pump locking device.
Background technique
Pump is being brought into play important effect in industrial and agricultural production, centrifugal pump is prevailing structural type.Usually the impeller of its pump all is by impeller nut and main shaft Joint, in order to reach locking purpose, is provided with the flat key except between impeller and main shaft, and the thread rotary orientation of its impeller nut is opposite with the sense of rotation of main shaft.But this kind fixed structure is in the moment that pump shuts down, and the medium in the pipeline flows backwards and returns to make the impeller counter-rotating owing to action of gravity, and this moment, impeller turned to identically with the rotation direction of impeller nut, made impeller nut loosening even come off, and often caused device damage.In order to solve the loosening problem of existing pump impeller, the design people has developed a kind of impeller of pump locking device through concentrating on studies, evidence, and effect is good.
The innovation and creation content
1, the technical problem that will solve
It is a kind of simple in structure that the purpose of this utility model is to provide, and processing and fabricating is easy, is applicable to various blade wheel structure form pump locking devices.
2, technological scheme
The utility model is achieved in that the locking chuck is set between impeller and impeller nut, the locking chuck is irregular " H " shape, mesopore cooperates with main shaft, and after impeller nut was pressed in impeller with chuck, the chuck side compressing was on the outer working surface of impeller nut.
3, beneficial effect
The utility model adopts dual non-return structure, makes impeller nut and impeller form an integral body, the chuck non-return even the impeller nut revolution that causes of pump stall moment also can be locked, thus reached the purpose of impeller anti-loose.The utility model is simple in structure, and processing and fabricating is easy, is applicable to the supporting use of pump of various blade wheel structure forms.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but the utility model is not limited to shown in the accompanying drawing.
Fig. 1 is the utility model working state schematic representation;
Fig. 2 is Fig. 1 partial enlarged drawing;
Fig. 3 is locking chuck structure figure.
Embodiment
As shown in Figure 1, 2, in the prior art, impeller 3 cooperates by flat key 2 with main shaft 1, impeller nut 5 locking impellers 3.The utility model is provided with locking chuck 4 between impeller 3 and impeller nut 5, impeller nut 5 will lock after chuck 4 is pressed in impeller 3, lock chuck 4 side compressings on the outer working surface of impeller nut 5.
As shown in Figure 3, locking chuck 4 is irregular " H " shape, and its mesopore cooperates with main shaft 1, and the inside sidewalls face (A face) of locking chuck cooperates with the outer working surface of impeller nut respectively.
Working principle of the present utility model and working procedure: utilize of the non-return effect of locking chuck to impeller nut, stop the counter-rotating that may cause in pump stall moment and the impeller that causes loosening.During work, earlier impeller is installed on the main shaft, good and sound flat key, to lock chuck is loaded on the main shaft, screw on afterwards impeller nut will lock chuck be pressed on be working state on the impeller after, the side that to lock chuck with instrument is depressed on the outer working surface of impeller nut, so that form the integral body that relative displacement can not take place between the impeller, main shaft, impeller nut three.
The utlity model has simple in structure, characteristics that processing and fabricating is easy, and being fit to and various leaves Wheel construction formula pump is supporting, prevents that impeller from coming off from main shaft, avoids device damage, has improved the dimension of exempting from of pump Protect the phase, reduced use cost, therefore, have stronger application value.
Claims (2)
1, a kind of impeller of pump locking device, impeller (3) cooperates by flat key (2) with main shaft (1), impeller nut (5) locking impeller (3), it is characterized in that: locking chuck (4) is set between impeller (3) and the impeller nut (5), impeller nut (5) will be locked after chuck (4) is pressed in impeller (3), and locking chuck (4) side compressing is on the outer working surface of impeller nut (5).
2, impeller of pump locking device as claimed in claim 1 is characterized in that: described locking chuck (4) is irregular " H " shape, and its mesopore cooperates with main shaft (1), and the inside sidewalls face of locking chuck cooperates with the outer working surface of impeller nut respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420104635 CN2760302Y (en) | 2004-12-20 | 2004-12-20 | Anti-loosening device for pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420104635 CN2760302Y (en) | 2004-12-20 | 2004-12-20 | Anti-loosening device for pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760302Y true CN2760302Y (en) | 2006-02-22 |
Family
ID=36082503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420104635 Expired - Fee Related CN2760302Y (en) | 2004-12-20 | 2004-12-20 | Anti-loosening device for pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760302Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271280A (en) * | 2010-03-31 | 2020-06-12 | 纳博特斯克汽车零部件有限公司 | Vacuum pump |
-
2004
- 2004-12-20 CN CN 200420104635 patent/CN2760302Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271280A (en) * | 2010-03-31 | 2020-06-12 | 纳博特斯克汽车零部件有限公司 | Vacuum pump |
| CN111271280B (en) * | 2010-03-31 | 2022-03-15 | 纳博特斯克汽车零部件有限公司 | Vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: KUMING JIAHE SCIENCE DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: KUNMING JIAHE PUMP CO., LTD. Effective date: 20080530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080530 Address after: No. 5-2, information industry base, Kunming economic and Technological Development Zone, Yunnan, China: 650216 Patentee after: Kunming Jiahe Science & Technology Development Co., Ltd. Address before: Yunnan province Kunming City Bailong Road No. 375 Kunming Jiahe Pump Co., zip code: 650225 Patentee before: Kunming Jiahe Pumps Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: KUNMING JIAHE SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: KUNMING JIAHE SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 650216 information industry base, No. 5-2, Kunming economic and Technological Development Zone, Yunnan Patentee after: Kunming Jiahe Science and Technology Co., Ltd. Address before: 650216 information industry base, No. 5-2, Kunming economic and Technological Development Zone, Yunnan Patentee before: Kunming Jiahe Science & Technology Development Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20121220 |