CN215719746U - Pump shaft with weight removing ring - Google Patents
Pump shaft with weight removing ring Download PDFInfo
- Publication number
- CN215719746U CN215719746U CN202122388442.6U CN202122388442U CN215719746U CN 215719746 U CN215719746 U CN 215719746U CN 202122388442 U CN202122388442 U CN 202122388442U CN 215719746 U CN215719746 U CN 215719746U
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- motor shaft
- impeller
- pump shaft
- connecting section
- hole
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Abstract
The utility model discloses a pump shaft with a weight-removing ring, which comprises a pump shaft body, wherein the pump shaft body comprises a motor shaft connecting section, a middle section and an impeller connecting section which are integrally arranged, a motor shaft connecting hole which extends along the axial direction and is used for inserting a power supply motor shaft is formed in the end part of the motor shaft connecting section, the inner end of the motor shaft connecting hole is in a conical shape with a large outer part and a small inner part, a first key groove which extends to the outer end of the motor shaft connecting hole is formed in the side part of the motor shaft connecting hole along the axial direction, the weight-removing ring is formed in the middle part of the inner wall of the motor shaft connecting hole along the circumferential direction, and a second key groove is formed in the outer wall of the impeller connecting section. By adding the heavy ring removing process, the utility model can reduce the weight of the pump shaft, effectively reduce the finish machining amount of the pump shaft, improve the production rate and shorten the supply period.
Description
Technical Field
The utility model relates to the technical field of pump shaft structures, in particular to a pump shaft with a weight removing ring.
Background
The water pump generally comprises a motor, a pump body, a pump shaft, an impeller and the like, and is widely applied to the fields of cross-basin water transfer, farmland irrigation, production water supply and drainage and the like. In the water pump, a pump shaft is used as a main component for transmitting mechanical energy, the pump shaft extends into a pump body through a pump cover on the pump body, one end of the pump shaft is connected with a motor shaft, and the other end of the pump shaft supports an impeller to keep a working position to rotate.
The pump shaft on the existing market is heavy, the finish machining amount of the pump shaft is large, the production efficiency is low, and the supply period is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pump shaft with a weight-removing ring.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pump shaft with remove heavy ring, includes the pump shaft body, the pump shaft body is including motor shaft linkage segment, interlude and the impeller linkage segment that is integrative setting, the tip of motor shaft linkage segment is seted up and is used for power supply motor shaft male motor shaft connecting hole along axial extension, and the inner of motor shaft connecting hole is the toper shape of outer big-end-up, and the first keyway that extends to motor shaft connecting hole outer end is seted up along the axial to the lateral part of motor shaft connecting hole, remove heavy ring has been seted up along circumference at the middle part of the inner wall of motor shaft connecting hole, the second keyway has been seted up on the outer wall of impeller linkage segment.
Through adopting above-mentioned technical scheme, insert the motor shaft in the motor shaft connecting hole of pump shaft pump body motor shaft linkage section and make the two produce the linkage through the mode of key-type connection, the impeller produces the linkage through the key-type connection with the impeller linkage section simultaneously, wherein, offer the heavy ring of going in foretell motor shaft connecting hole inner wall middle part, can reduce pump shaft weight, effectively reduced pump shaft finish machining volume, improve production rate, shorten the supply of goods cycle, be worth wide application and widely popularize.
The utility model is further arranged that the radius of the weight-removing ring is smaller than the distance between the first key groove and the central shaft of the motor shaft connecting hole.
Through adopting above-mentioned technical scheme, can guarantee to set up the joint strength of pump shaft and motor shaft when removing the heavy ring and not influenced.
The utility model is further configured such that the length of the weight removing ring is three fifths of the length of the motor shaft connecting hole.
Through adopting above-mentioned technical scheme, when utilizing to add the weight ring furthest reduction pump shaft whole weight, can guarantee that the bulk strength of pump shaft is not influenced.
The utility model is further provided that the inner wall of the first key groove is provided with at least two screw holes extending to the outer side wall of the impeller connecting section.
Through adopting above-mentioned technical scheme, the accessible is screwed in the screw and is realized the axial of motor shaft and pump shaft spacing, stability when promoting the two linkages.
The utility model is further arranged in such a way that a drain hole extending to the outer side wall of the impeller connecting section is formed in the inner wall of the first key groove, the diameter of the drain hole is larger than the width of the first key groove, and the drain hole is arranged in the region, which is not overlapped with the weight-removing ring, in the motor shaft connecting hole.
Through adopting above-mentioned technical scheme, the outage can play flowing back, cooling and the effect of being convenient for wash.
The utility model is further provided that the diameters of the motor shaft connecting section, the middle section and the impeller connecting section are sequentially reduced, a first limiting step is formed between the motor shaft connecting section and the middle section, and a second limiting step is formed between the middle section and the impeller connecting section.
Through adopting above-mentioned technical scheme, can play spacing effect to the impeller at the installation impeller, make things convenient for the installation operation of impeller greatly.
The utility model is further provided that the part of the impeller connecting section, which is close to the second limiting step, is provided with an annular tool withdrawal groove along the circumferential direction.
Through adopting above-mentioned technical scheme, move back the sword when being convenient for process impeller linkage segment, improve the machining precision.
The utility model is further provided that a round chamfer is arranged at the junction of the middle section and the impeller connecting section.
Through adopting above-mentioned technical scheme, can show the intensity that promotes interlude and impeller linkage segment juncture, and then promote the life of pump shaft.
The impeller is further provided with a mounting hole for screwing a limiting screw in along the axial direction at the end part of the impeller connecting section, the mounting hole comprises an outer hole part and a threaded hole part which are coaxially arranged from outside to inside, the diameter of the outer hole part is larger than that of the threaded hole part, a first conical guide part is arranged at the outer end of the outer hole part, and a second conical guide part is arranged between the outer hole part and the threaded hole part.
Through adopting above-mentioned technical scheme, be convenient for compress tightly the impeller on the impeller linkage segment with spacing screw in mounting hole, promote the steadiness of impeller installation.
Drawings
FIG. 1 is a partial cross-sectional view of the present invention;
fig. 2 is a perspective view of the present invention as a whole.
In the figure: 1. a pump shaft body; 2. a motor shaft connecting section; 3. a middle section; 4. an impeller connecting section; 5. a motor shaft connecting hole; 6. a first keyway; 7. removing heavy rings; 8. a second keyway; 9. a screw hole; 10. a drain hole; 11. a first limit step; 12. a second limit step; 13. an annular tool withdrawal groove; 14. rounding and chamfering; 15. mounting holes; 16. an outer hole portion; 17. a threaded hole portion; 18. a first tapered guide portion; 19. a second tapered guide portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): the pump shaft with the weight-removing ring as shown in the attached drawings 1 and 2 comprises a pump shaft body 1, wherein the pump shaft body 1 comprises a motor shaft connecting section 2, a middle section 3 and an impeller connecting section 4 which are integrally arranged, a motor shaft connecting hole 5 which is used for inserting a motor shaft and extends along the axial direction is formed in the end part of the motor shaft connecting section 2, the inner end of the motor shaft connecting hole 5 is in a conical shape with a large outer end and a small inner end, a first key groove 6 which extends to the outer end of the motor shaft connecting hole 5 is formed in the lateral part of the motor shaft connecting hole 5 along the axial direction, the weight-removing ring 7 is formed in the middle part of the inner wall of the motor shaft connecting hole 5 along the circumferential direction, and a second key groove 8 is formed in the outer wall of the impeller connecting section 4. Insert the motor shaft in the motor shaft connecting hole 5 of pump shaft pump body motor shaft linkage section 2 and make the two produce the linkage through the mode of key-type connection, the impeller produces the linkage through the key-type connection with impeller linkage section 4 simultaneously, wherein, offer in the middle part of foretell motor shaft connecting hole 5 inner wall and remove heavy ring 7, can reduce pump shaft weight, effectively reduced the pump shaft finish machining volume, improve production rate, shorten the supply of goods cycle, be worth wide application and widely popularize.
Wherein, the radius of the weight-removing ring 7 is smaller than the distance between the first key groove 6 and the central shaft of the motor shaft connecting hole 5. The design can ensure that the connection strength of the pump shaft and the motor shaft is not influenced when the weight removing ring 7 is arranged.
Wherein, the length of the de-weighting ring 7 is three fifths of the length of the motor shaft connecting hole 5. The integral strength of the pump shaft can be guaranteed not to be affected when the integral weight of the pump shaft is reduced to the maximum extent by additionally arranging the weight removing ring 7.
As shown in fig. 1 and fig. 2, at least two screw holes 9 extending to the outer side wall of the impeller connecting section 4 are formed in the inner wall of the first key groove 6, and the number of the screw holes 9 in this embodiment is two. The accessible is screwed in the screw in screw 9 and is realized the axial of motor shaft and pump shaft spacing, stability when promoting the two linkages.
As shown in fig. 1 and fig. 2, a drain hole 10 extending to the outer side wall of the impeller connecting section 4 is formed in the inner wall of the first key groove 6, the diameter of the drain hole 10 is larger than the width of the first key groove 6, and the drain hole 10 is arranged in a region of the motor shaft connecting hole 5 which is not overlapped with the weight removing ring 7. The liquid discharging holes 10 can play the roles of discharging liquid, cooling and facilitating flushing.
As shown in fig. 1, the diameters of the motor shaft connecting section 2, the middle section 3 and the impeller connecting section 4 are sequentially reduced, a first limiting step 11 is formed between the motor shaft connecting section 2 and the middle section 3, and a second limiting step 12 is formed between the middle section 3 and the impeller connecting section 4. The design can play a limiting effect on the impeller when the impeller is installed, and the installation operation of the impeller is greatly facilitated.
As shown in fig. 1, an annular tool withdrawal groove 13 is formed in a portion of the impeller connecting section 4 close to the second limiting step 12 along the circumferential direction. This design moves back the sword when being convenient for process impeller linkage segment 4, improves the machining precision.
As shown in fig. 1, a round chamfer 14 is provided at the intersection of the middle section 3 and the impeller connecting section 4. This design can show the intensity that promotes interlude 3 and 4 junctures of impeller linkage segment, and then promotes the life of pump shaft.
As shown in fig. 2, an end of the impeller connecting section 4 is axially provided with a mounting hole 15 into which a limit screw is screwed, the mounting hole 15 includes an outer hole portion 16 and a threaded hole portion 17 which are coaxially arranged from outside to inside, the diameter of the outer hole portion 16 is larger than that of the threaded hole portion 17, an outer end of the outer hole portion 16 is provided with a first tapered guide portion 18, and a second tapered guide portion 19 is arranged between the outer hole portion 16 and the threaded hole portion 17. This design is convenient for compress tightly the impeller on impeller linkage segment 4 with spacing screw in mounting hole 15, promotes the steadiness of impeller installation.
Claims (9)
1. A pump shaft with a thrust ring, comprising a pump shaft body (1), characterized in that: pump shaft body (1) is including being integrative motor shaft connecting section (2), interlude (3) and impeller connecting section (4) that sets up, the tip of motor shaft connecting section (2) is seted up and is used for power motor shaft male motor shaft connecting hole (5) along axial extension, and the inner of motor shaft connecting hole (5) is outer big-end-up's toper shape, and first keyway (6) that extend to motor shaft connecting hole (5) outer end are seted up along the axial to the lateral part of motor shaft connecting hole (5), remove heavily ring (7) have been seted up along circumference at the middle part of the inner wall of motor shaft connecting hole (5), second keyway (8) have been seted up on the outer wall of impeller connecting section (4).
2. The pump shaft with the thrust ring of claim 1, wherein: the radius of the weight-removing ring (7) is smaller than the distance between the first key groove (6) and the central shaft of the motor shaft connecting hole (5).
3. The pump shaft with the thrust ring of claim 1, wherein: the length of the weight-removing ring (7) is three fifths of the length of the motor shaft connecting hole (5).
4. The pump shaft with the thrust ring of claim 1, wherein: and at least two screw holes (9) extending to the outer side wall of the impeller connecting section (4) are formed in the inner wall of the first key groove (6).
5. The pump shaft with the thrust ring of claim 1, wherein: the impeller is characterized in that a liquid discharge hole (10) extending to the outer side wall of the impeller connecting section (4) is formed in the inner wall of the first key groove (6), the diameter of the liquid discharge hole (10) is larger than the width of the first key groove (6), and the liquid discharge hole (10) is arranged in a region, which is not overlapped with the weight removing ring (7), in the motor shaft connecting hole (5).
6. The pump shaft with the thrust ring of claim 1, wherein: the diameter of motor shaft linkage segment (2), interlude (3) and impeller linkage segment (4) reduces in proper order, form first spacing step (11) between motor shaft linkage segment (2) and interlude (3), form second spacing step (12) between interlude (3) and impeller linkage segment (4).
7. The pump shaft with the thrust ring of claim 6, wherein: an annular tool withdrawal groove (13) is formed in the position, close to the second limiting step (12), of the impeller connecting section (4) along the circumferential direction.
8. The pump shaft with the thrust ring of claim 1, wherein: and a round chamfer (14) is arranged at the junction of the middle section (3) and the impeller connecting section (4).
9. The pump shaft with the thrust ring of claim 1, wherein: the utility model discloses an impeller connecting section, including impeller connecting section (4), the tip of impeller connecting section (4) is seted up along the axial and is supplied mounting hole (15) of spacing screw in, mounting hole (15) are by outer hole portion (16) and the screw hole portion (17) of interior coaxial setting, the diameter of outer hole portion (16) is greater than the diameter of screw hole portion (17), the outer end of outer hole portion (16) is equipped with first toper guide portion (18), be equipped with second toper guide portion (19) between outer hole portion (16) and screw hole portion (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388442.6U CN215719746U (en) | 2021-09-29 | 2021-09-29 | Pump shaft with weight removing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388442.6U CN215719746U (en) | 2021-09-29 | 2021-09-29 | Pump shaft with weight removing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719746U true CN215719746U (en) | 2022-02-01 |
Family
ID=80026596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122388442.6U Active CN215719746U (en) | 2021-09-29 | 2021-09-29 | Pump shaft with weight removing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719746U (en) |
-
2021
- 2021-09-29 CN CN202122388442.6U patent/CN215719746U/en active Active
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