CN202833284U - Impeller nut locking structure - Google Patents
Impeller nut locking structure Download PDFInfo
- Publication number
- CN202833284U CN202833284U CN 201220559116 CN201220559116U CN202833284U CN 202833284 U CN202833284 U CN 202833284U CN 201220559116 CN201220559116 CN 201220559116 CN 201220559116 U CN201220559116 U CN 201220559116U CN 202833284 U CN202833284 U CN 202833284U
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- CN
- China
- Prior art keywords
- impeller
- impeller nut
- thread
- nut
- holes
- 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 the technical field of a mechanical engineering pump, in particular to an impeller nut locking structure. The impeller nut locking structure comprises an impeller, a pump shaft and an impeller nut, the impeller is fixed on the pump shaft, and the impeller nut is connected with pump shaft threads and abuts against the impeller. The impeller nut locking structure is characterized in that fastening screws are arranged, positioning grooves are arrayed in the top portion of the impeller nut along the direction from a central shaft to the periphery, the bottom planes of the positioning grooves are vertical to a central line of the impeller nut, thread through holes are vertically formed in the bottom planes of the positioning grooves, thread holes are formed in the abutting face of the impeller nut and the impeller, and the thread through holes are corresponding to the thread holes, and central lines of the thread through holes and the thread holes are located on one same shaft line. The fastening screws penetrate through the thread through holes formed in the impeller nut and are fixedly connected with the impeller through the thread holes, and the impeller is enabled to be firmly fixed on the pump shaft no matter a pump rotates forward or backward. Due to the structure, the impeller nut locking structure has the advantages of being reasonable in structure, reliable in fixation, convenient to install, stable in work, long in service life, and the like.
Description
Technical field
The utility model relates to mechanical engineering pump technical field, specifically a kind of impeller nut anti-loose structure of pump.
Background technique
As everyone knows, the fixing of traditional centrifugal pump impeller all is with impeller nut impeller to be fixed on the pump shaft, be that impeller is fixed on the pump shaft, impeller nut is threaded with pump shaft, and inconsistent with impeller, prevent when being beneficial to be rotated in the forward that impeller from getting loose, because pump shaft and impeller are pressed the thread rotary orientation design, guaranteed that pump rotor turns tighter and tighter when rotating, if but pump rotor is when produce reversing, because the characteristic of screw thread, impeller nut then produces counter-rotating, cause impeller loosening, and then fixing impeller, finally cause impeller to come off, in order to prevent the impeller loose or dislocation, usually adopt and between impeller nut and impeller, lock washer is installed, the deficiency of this structure is: for the very large impeller of weight, the inertia of impeller is very large during owing to rotation, in the situation of impeller counter-rotating, lock washer is easy to be cut off, and causes the impeller loose or dislocation.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and the impeller nut anti-loose structure of a kind of reliable, easy for installation, working stability rational in infrastructure, fixing, long service life is provided.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of impeller nut anti-loose structure, comprise impeller, pump shaft and impeller nut, impeller is fixed on the pump shaft, impeller nut is threaded with pump shaft, and inconsistent with impeller, it is characterized in that being provided with Cock screw, the top of impeller nut is shown positioning groove along central shaft to Circle-Array, the bottom plane of positioning groove and the center line of impeller nut are perpendicular, vertically be provided with tapped through hole on the bottom plane of positioning groove, inconsistent of impeller and impeller nut are provided with tapped hole, tapped through hole is corresponding with tapped hole, and center line is on same axis, and Cock screw passes the tapped through hole that impeller nut is provided with and is fastenedly connected through tapped hole and impeller, make pump no matter in forward or when reversing, can both be fixed on the pump shaft reliably.
The utility model is owing to adopt said structure, has the advantages such as rational in infrastructure, fixing reliable, easy for installation, working stability, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Reference character: impeller 1, pump shaft 2, impeller nut 3, Cock screw 4, positioning groove 5.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
As shown in drawings, a kind of impeller nut anti-loose structure, comprise impeller 1, pump shaft 2 and impeller nut 3, impeller 1 is fixed on the pump shaft 2, impeller nut 3 is threaded with pump shaft 2, and inconsistent with impeller 1, it is characterized in that being provided with Cock screw 4, positioning groove 5 is shown at the top of impeller nut 3 along central shaft to Circle-Array, the center line of the bottom plane of positioning groove 5 and impeller nut 3 is perpendicular, vertically be provided with tapped through hole on the bottom plane of positioning groove 5, impeller 1 is provided with tapped hole with 3 inconsistent of impeller nuts, and tapped through hole is corresponding with tapped hole, and center line is on same axis, Cock screw 4 passes the tapped through hole that impeller nut 3 is provided with and is fastenedly connected through tapped hole and impeller 1, and when making pump no matter in forward or in counter-rotating, impeller 1 can both be fixed on the pump shaft 2 reliably.
The utility model is adding man-hour, at the top of impeller nut 3 along central shaft to the processing positioning groove, thread mill drilling on the end face of impeller 1 again, with impeller nut 3 tightly behind impeller 1, again impeller 1 and impeller nut 3 usefulness Cock screws 4 are fixed together, even in the situation of counter-rotating, impeller 1 still can reliably be fixed on the pump shaft 2 pump for a long time like this.
The utility model is owing to adopt said structure, has the advantages such as rational in infrastructure, fixing reliable, easy for installation, working stability, long service life.
Claims (1)
1. impeller nut anti-loose structure, comprise impeller, pump shaft and impeller nut, impeller is fixed on the pump shaft, impeller nut is threaded with pump shaft, and inconsistent with impeller, it is characterized in that being provided with Cock screw, the top of impeller nut is shown positioning groove along central shaft to Circle-Array, the bottom plane of positioning groove and the center line of impeller nut are perpendicular, vertically be provided with tapped through hole on the bottom plane of positioning groove, inconsistent of impeller and impeller nut are provided with tapped hole, and tapped through hole is corresponding with tapped hole, and center line is on same axis, and Cock screw passes the tapped through hole that impeller nut is provided with and is fastenedly connected through tapped hole and impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559116 CN202833284U (en) | 2012-10-29 | 2012-10-29 | Impeller nut locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559116 CN202833284U (en) | 2012-10-29 | 2012-10-29 | Impeller nut locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833284U true CN202833284U (en) | 2013-03-27 |
Family
ID=47945003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220559116 Expired - Fee Related CN202833284U (en) | 2012-10-29 | 2012-10-29 | Impeller nut locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747344A (en) * | 2013-12-28 | 2015-07-01 | 李德国 | Super-efficient low-internal-resistance liquid machine |
| CN105971921A (en) * | 2016-01-11 | 2016-09-28 | 欧技工业设备（江苏）有限公司 | Locking mechanism for impeller of forced circulation pump |
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
-
2012
- 2012-10-29 CN CN 201220559116 patent/CN202833284U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747344A (en) * | 2013-12-28 | 2015-07-01 | 李德国 | Super-efficient low-internal-resistance liquid machine |
| CN105971921A (en) * | 2016-01-11 | 2016-09-28 | 欧技工业设备（江苏）有限公司 | Locking mechanism for impeller of forced circulation pump |
| CN106246595A (en) * | 2016-10-13 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Impeller inducer assembly and there is its aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |