CN216554558U - High anti water pump impeller shaft device of rolling over - Google Patents
High anti water pump impeller shaft device of rolling over Download PDFInfo
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- CN216554558U CN216554558U CN202122991469.4U CN202122991469U CN216554558U CN 216554558 U CN216554558 U CN 216554558U CN 202122991469 U CN202122991469 U CN 202122991469U CN 216554558 U CN216554558 U CN 216554558U
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- impeller
- shaft
- mounting surface
- key groove
- connecting key
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Abstract
The utility model discloses a high-bending-resistance water pump impeller shaft device which comprises a cover-shaped nut and is characterized in that the cover-shaped nut is screwed on the shaft end of a pump shaft, an impeller connecting key groove is further arranged on one side of the shaft end of the pump shaft, a mechanical seal positioning ring is further arranged beside the impeller connecting key groove, the impeller connecting key groove is formed in an impeller mounting surface, one end of the impeller mounting surface is smoothly connected with a mechanical seal mounting surface, a shaft sleeve is arranged at one end of the mechanical seal mounting surface, a plurality of screw holes are formed in the shaft sleeve, and a motor shaft connecting key groove is further formed in one end of the shaft sleeve. The utility model has the characteristics of long service life, convenient processing, simple replacement, high fracture resistance and the like.
Description
Technical Field
The utility model relates to the technical field of impellers, in particular to a high-bending-resistance water pump impeller shaft device.
Background
In the production and management of enterprises, a plurality of production processes need to use water resources and reach a certain water pressure, and at the moment, a horizontal centrifugal pump needs to be used. Under the condition of long-time operation of the centrifugal pump, the phenomenon of impeller abrasion or pump shaft damage caused by loosening of a nut locking an impeller cover often exists. Meanwhile, the shaft shoulder position of the impeller shaft of the water pump where the impeller is installed is too concentrated due to stress, fatigue reasons are accumulated due to long-time operation, and the pump shaft is frequently broken, so that maintenance personnel need to frequently disassemble and assemble the water pump, replace the pump shaft and consume a large amount of manpower. Meanwhile, the price of purchasing the original pump shaft from a manufacturer by an enterprise is high, which directly leads to the increase of the enterprise cost. The inventor strengthens the self-locking performance after the impeller cover type nuts are locked and disperses the measures such as shaft stress and the like through the development, design and use of the high anti-bending pump shaft device of the horizontal centrifugal pump, thereby prolonging the service life of the pump shaft, and the device is simple and convenient to process in an external cooperation way, and directly reduces the production cost of enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the water pump impeller shaft device with high bending resistance, which has the characteristics of long service life, convenience in processing, simplicity in replacement, high bending resistance and the like.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a high anti pump shaft device that rolls over suitable for horizontal centrifugal pump, includes lid type nut, its characterized in that, state lid type nut spiro union and serve at the pump shaft axle, one side of pump shaft axle head still is equipped with impeller connection keyway, one side of impeller connection keyway still is equipped with the machine and seals the holding ring, impeller connection keyway is seted up on impeller installation face, impeller installation face's one end smooth connection has the machine to seal the installation face, the one end of machine to seal the installation face is equipped with the axle sleeve, seted up a plurality of screws on the axle sleeve, motor shaft connection keyway has still been seted up to the one end of this axle sleeve.
Preferably, the number of the screw holes is 2, the screw holes are in a hexagon socket shape, and the screw holes are distributed on the same axis of the motor shaft connecting key groove in parallel.
Preferably, the shaft sleeve and the machine seal mounting surface are connected in an inverted R transition connection mode, and the machine seal mounting surface and the impeller mounting surface are connected in an inverted R transition connection mode.
Preferably, the external thread dimension of the pump shaft end is M16 × 1.5.
The utility model has the following beneficial effects: according to the utility model, the inner hexagonal concave end fastening screw hole is designed, the inner hexagonal concave end fastening screw is screwed into the screw hole, the motor shaft connecting key is fastened, and the fitting degree of the key is ensured. When the key is loosened, the fit degree of the key can be ensured by screwing the fastening screw; according to the utility model, the shaft sleeve and the machine seal mounting surface as well as the machine seal mounting surface and the impeller mounting surface are connected in an inverted R transition connection mode, so that the stress of a shaft is dispersed on an R surface when a water pump runs, the stress intensity of the shaft is improved, and the service life of the shaft is prolonged; according to the utility model, the shaft end is designed to adopt M16 multiplied by 1.5 fine threads, so that the self-locking performance of the screw and the nut after being engaged is enhanced, and the nut is prevented from loosening.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. the mechanical seal device comprises a cover-shaped nut 2, a pump shaft end 3, an impeller connecting key groove 4, a mechanical seal positioning ring 5, an impeller mounting surface 6, a mechanical seal mounting surface 7, a shaft sleeve 8, a screw hole 9 and a motor shaft connecting key groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a high anti-bending pump shaft device suitable for a horizontal centrifugal pump comprises a cover-shaped nut 1 and is characterized in that the cover-shaped nut 1 is screwed on a pump shaft end 2, an impeller connecting key groove 3 is further arranged on one side of the pump shaft end 2, a mechanical seal positioning ring 4 is further arranged beside the impeller connecting key groove 3, the impeller connecting key groove 3 is arranged on an impeller mounting surface 5, one end of the impeller mounting surface 5 is connected with a mechanical seal mounting surface 6 in a smooth mode, one end of the mechanical seal mounting surface 6 is provided with a shaft sleeve 7, a plurality of screw holes 8 are formed in the shaft sleeve 7, and one end of the shaft sleeve 7 is further provided with a motor shaft connecting key groove 9.
The number of the screw holes 8 is 2, the screw holes 8 are in an inner hexagonal shape, and the screw holes 8 are distributed on the same axis of the motor shaft connecting key groove 9 in parallel.
The shaft sleeve 7 is connected with the machine seal mounting surface 6 in an inverted R transition connection mode, and the machine seal mounting surface 6 is connected with the impeller mounting surface 5 in an inverted R transition connection mode.
The external thread size of the pump shaft end 2 is M16 multiplied by 1.5.
According to the utility model, by designing the screw hole 8 for fastening the concave end of the inner hexagon, the screw for fastening the concave end of the inner hexagon is screwed into the screw hole 8, the connecting key of the motor shaft is fastened, and the fitting degree of the key is ensured. When the key is loosened, the fit degree of the key can be ensured by screwing the fastening screw; according to the utility model, the shaft sleeve 7 and the machine seal mounting surface 6, and the machine seal mounting surface 6 and the impeller mounting surface 5 are connected in an inverted R transition connection mode, so that the stress of a shaft is dispersed on the R surface when a water pump runs, the stress intensity of the shaft is improved, and the service life of the shaft is prolonged; according to the utility model, the shaft end is designed to adopt M16 multiplied by 1.5 fine threads, so that the self-locking performance of the screw and the nut after being engaged is enhanced, and the nut is prevented from loosening. The device has the characteristics of simple structure, strong bending resistance and the like.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a water pump impeller shaft device of high anti book, includes lid type nut (1), its characterized in that, lid type nut (1) spiro union is on pump shaft axle head (2), one side of pump shaft axle head (2) still is equipped with impeller connecting key groove (3), still be equipped with mechanical seal holding ring (4) on one side of impeller connecting key groove (3), impeller connecting key groove (3) are seted up on impeller installation face (5), the one end smooth connection of impeller installation face (5) has mechanical seal installation face (6), the one end of mechanical seal installation face (6) is equipped with axle sleeve (7), a plurality of screws (8) have been seted up on axle sleeve (7), and motor shaft connecting key groove (9) have still been seted up to the one end of this axle sleeve (7).
2. The impeller shaft device of a water pump with high bending resistance as claimed in claim 1, wherein the number of the screw holes (8) is 2, the screw holes (8) are in a shape of an inner hexagon, and the screw holes (8) are distributed in parallel on the same axis of the shaft connecting key groove (9) of the motor.
3. The water pump impeller shaft device with high bending resistance as claimed in claim 1, wherein the shaft sleeve (7) is connected with the machine seal mounting surface (6) in an inverted R transition connection manner, and the machine seal mounting surface (6) is connected with the impeller mounting surface (5) in an inverted R transition connection manner.
4. The water pump impeller shaft device with high bending resistance as claimed in claim 1, wherein the external thread dimension of the pump shaft end (2) is M16 x 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991469.4U CN216554558U (en) | 2021-12-01 | 2021-12-01 | High anti water pump impeller shaft device of rolling over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991469.4U CN216554558U (en) | 2021-12-01 | 2021-12-01 | High anti water pump impeller shaft device of rolling over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216554558U true CN216554558U (en) | 2022-05-17 |
Family
ID=81577953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122991469.4U Active CN216554558U (en) | 2021-12-01 | 2021-12-01 | High anti water pump impeller shaft device of rolling over |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216554558U (en) |
-
2021
- 2021-12-01 CN CN202122991469.4U patent/CN216554558U/en active Active
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