CN210715250U - Device for preventing impeller nut from loosening due to impeller reverse rotation - Google Patents
Device for preventing impeller nut from loosening due to impeller reverse rotation Download PDFInfo
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- CN210715250U CN210715250U CN201921062936.1U CN201921062936U CN210715250U CN 210715250 U CN210715250 U CN 210715250U CN 201921062936 U CN201921062936 U CN 201921062936U CN 210715250 U CN210715250 U CN 210715250U
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- impeller
- nut
- loosening
- pad
- pump shaft
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Abstract
The utility model belongs to the technical field of the centrifugal pump, concretely relates to prevent to lead to not hard up device of impeller nut because of the impeller reversal. This prevent to lead to not hard up device of impeller nut because of impeller reversal, including impeller and pump shaft, the impeller passes through the fastening of impeller nut at the pump shaft tip, be equipped with locking pad between impeller and the impeller nut, be equipped with the chimb on the locking pad. The beneficial effects are as follows: the double-nut locking device is improved aiming at the defect of high cost of double nuts, meanwhile, the hidden danger existing in a double-nut locking mode is optimized, only one fixing nut is still needed, the pump shaft thread does not need to be additionally lengthened, but the anti-loosening reliability is greatly improved, the possibility of loosening is avoided, the double-nut locking device is simple and convenient to use, the production and processing efficiency is improved, the manufacturing cost is reduced, and the stability and the reliability are improved.
Description
Technical Field
The utility model belongs to the technical field of the centrifugal pump, concretely relates to prevent to lead to not hard up device of impeller nut because of the impeller reversal.
Background
At present, the measure for preventing the impeller nut from reversing and loosening in the industry generally adopts a double-nut fixing mode under the condition of no sealing requirement, and the defect of the mode is that the length of the pump shaft thread is required to be twice longer than that of a single-nut mode, so that the corresponding cost of pump shaft raw materials, processing working hours, the number of nuts and the like is increased. In addition, the nut is tensioned by the aid of pretightening force among the screw teeth, and the nut still has the possibility of loosening under extreme conditions such as axial impact vibration, so that the impeller loosens and slips, and even the impeller and the pump shaft are scrapped, and accordingly higher maintenance cost is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a remedy prior art's defect, provide a device that prevents to lead to the impeller nut not hard up because of the impeller reversal.
The utility model discloses a realize through following technical scheme:
the utility model provides a prevent to lead to not hard up device of impeller nut because of impeller reversal, includes impeller and pump shaft, the impeller passes through the fastening of impeller nut at the pump shaft tip, be equipped with locking pad between impeller and the impeller nut, be equipped with the chimb on the locking pad.
Furthermore, a middle hole is formed in the middle of the anti-loosening pad, and a convex edge is punched on one side of the middle hole by a stamping process.
Furthermore, convex edges are respectively punched on two sides of the anti-loosening pad.
Further, the height of chimb is 2 mm.
Furthermore, one side of the anti-loosening pad is provided with a folding line.
The utility model has the advantages that: the double-nut locking device is improved aiming at the defect of high cost of double nuts, meanwhile, the hidden danger existing in a double-nut locking mode is optimized, only one fixing nut is still needed, the pump shaft thread does not need to be additionally lengthened, but the anti-loosening reliability is greatly improved, the possibility of loosening is avoided, the double-nut locking device is simple and convenient to use, the production and processing efficiency is improved, the manufacturing cost is reduced, and the stability and the reliability are improved.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the anti-loosening pad of the present invention;
fig. 3 is a side view of the anti-loosening pad of the present invention.
In the figure, 1 impeller, 2 pump shaft, 3 anti-loosening pad, 4 impeller nut, 5 folding line and 6 convex edge.
Detailed Description
Fig. 1-3 show an embodiment of the present invention. The utility model discloses a prevent to lead to not hard up device of impeller nut 4 because of impeller 1 reversal, including impeller 1 and pump shaft 2, impeller 1 fastens at 2 tip of pump shaft through impeller nut 4, be equipped with locking pad 3 between impeller 1 and the impeller nut 4, be equipped with chimb 6 on the locking pad 3.
Furthermore, a middle hole is formed in the middle of the anti-loosening pad 3, and a convex edge 6 is punched on one side of the middle hole by a stamping process.
Furthermore, convex edges 6 are respectively punched on two sides of the anti-loosening pad 3.
Further, the height of the convex edge 6 is 2 mm.
Further, one side of the anti-loosening pad 3 is provided with a folding line 5.
The utility model relates to a device for preventing impeller nut 4 from loosening caused by impeller 1 reverse rotation, which utilizes a locking pad 3 with a circular sheet structure, a hole is formed in the middle, a convex edge 6 with a height of 2mm is punched by a punching process, the width is matched with a key groove on the impeller 1, the locking pad 3 is lined between the impeller nut 4 and the impeller 1 during installation and is sleeved at the thread part of a pump shaft 2, the convex edge 6 is clamped into the key groove of the impeller 1, then the impeller nut 4 is screwed, after screwing, the locking pad 3 is turned up along one edge of the impeller nut 4 by a tool along a folding edge, the turned-up edge is attached to the impeller nut 4, no matter the impeller nut is rotated positively or reversely, when the impeller nut 4 is subjected to external force, the external force is transmitted to the key groove of the impeller 1 through the locking pad 3, the impeller nut 4 is prevented from rotating due to the external force, and the impeller nut 4 can not loosen due to the external force, if will dismantle impeller 1, then only need with locking pad 3 laminate the turn-ups on impeller nut 4 and utilize simple instrument, for example sled such as a style of calligraphy bottle opener is flat, can easily take off impeller nut 4.
The present invention is not limited to the above embodiments, and any person should learn to make under the teaching of the present invention and the present invention has the same or similar technical solution, and all fall into the protection scope of the present invention.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (5)
1. The utility model provides a prevent to lead to not hard up device of impeller nut because of impeller reversal, includes impeller and pump shaft, its characterized in that, the impeller passes through the fastening of impeller nut at the pump shaft tip, be equipped with locking pad between impeller and the impeller nut, be equipped with the chimb on the locking pad.
2. The device for preventing loosening of an impeller nut caused by reverse rotation of an impeller according to claim 1, wherein: a middle hole is formed in the middle of the anti-loosening pad, and a convex edge is punched on one side of the middle hole by a stamping process.
3. The device for preventing loosening of an impeller nut caused by reverse rotation of an impeller according to claim 1, wherein: convex edges are respectively punched on two sides of the anti-loosening pad.
4. The device for preventing loosening of an impeller nut caused by reverse rotation of an impeller according to claim 1, wherein: the height of chimb is 2 mm.
5. The device for preventing loosening of an impeller nut caused by reverse rotation of an impeller according to claim 1, wherein: one side of the anti-loosening pad is provided with a folding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062936.1U CN210715250U (en) | 2019-07-09 | 2019-07-09 | Device for preventing impeller nut from loosening due to impeller reverse rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062936.1U CN210715250U (en) | 2019-07-09 | 2019-07-09 | Device for preventing impeller nut from loosening due to impeller reverse rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715250U true CN210715250U (en) | 2020-06-09 |
Family
ID=70964260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921062936.1U Active CN210715250U (en) | 2019-07-09 | 2019-07-09 | Device for preventing impeller nut from loosening due to impeller reverse rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715250U (en) |
-
2019
- 2019-07-09 CN CN201921062936.1U patent/CN210715250U/en active Active
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