CN216241454U - Hollow water pump shaft assembly - Google Patents
Hollow water pump shaft assembly Download PDFInfo
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- CN216241454U CN216241454U CN202121808392.6U CN202121808392U CN216241454U CN 216241454 U CN216241454 U CN 216241454U CN 202121808392 U CN202121808392 U CN 202121808392U CN 216241454 U CN216241454 U CN 216241454U
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- water pump
- pump shaft
- hollow
- water
- impeller
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Abstract
The utility model relates to the technical field of water pump shafts, in particular to a hollow water pump shaft assembly. The water pump is characterized by comprising a volute, wherein the left side of the volute is sealed, the water pump shaft is of a hollow shaft structure, a water inlet is formed in the right end of the water pump shaft, a hollow driving shaft is arranged at the left end of the water pump shaft, locking threads are arranged on the periphery of the hollow driving shaft, a boss is arranged on the right side of the impeller, the impeller is fixed on the locking threads of the hollow driving shaft through the boss, when the motor works, the water pump shaft rotates, the impeller is driven to rotate through the hollow driving shaft, water can enter from the right end of the water pump shaft and then enters the center of the impeller through the hollow structure, and the water is thrown out from a water outlet on one side of the volute under the centrifugal action; water passes through the inside of the motor when flowing through the center of the water pump shaft, so that the inside of the motor is substantially cooled through water cooling, the motor works in a low-temperature state, the burning loss phenomenon of the motor cannot occur, and the power consumption of the water pump is low.
Description
Technical Field
The utility model relates to the technical field of water pump shafts, in particular to a hollow water pump shaft assembly.
Background
The water pump shaft of the existing centrifugal pump is generally of a solid structure, when a motor shaft rotates, the water pump shaft is driven to rotate together, the impeller is driven to rotate through the water pump shaft to pump water, water enters from one side of the volute and is discharged from one side of the volute; the motor radiating effect is relatively poor, and the long-time during operation of water pump, the motor generates heat, and power consumption increases, burns out the motor easily when the motor is overheated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the technical defects exist, and provides a hollow water pump shaft assembly which comprises a left side seal of a volute, wherein the water pump shaft is of a hollow shaft structure, a water inlet is formed in the right end of the water pump shaft, a hollow driving shaft is arranged at the left end of the water pump shaft, locking threads are arranged on the periphery of the hollow driving shaft, a boss is arranged on the right side of an impeller, the impeller is fixed on the locking threads of the hollow driving shaft through the boss, when a motor works, the water pump shaft rotates, the impeller is driven to rotate through the hollow driving shaft, water can enter from the right end of the water pump shaft, then enters the central part of the impeller through the hollow structure, and is thrown out from a water outlet on one side of the volute under the centrifugal action; water passes through the inside of the motor when flowing through the center of the water pump shaft, so that the inside of the motor is substantially cooled through water cooling, the motor works in a low-temperature state, the burning loss phenomenon of the motor cannot occur, and the power consumption of the water pump is low.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: comprises a motor body, a volute and an internal flow hollow pump shaft device; the volute is fixedly arranged at the left end of the motor body; the left side of the volute is sealed; a water outlet is formed in one side of the volute; the inner flowing hollow pump shaft device is arranged in the middle of the motor body in a penetrating way; the inner flowing hollow pump shaft device comprises a water pump shaft and an impeller; the water pump shaft penetrates through the middle part of the motor body; the water pump shaft and the left end and the right end of the motor body are sealed; the impeller is arranged inside the volute; the water pump shaft is of a hollow shaft structure, and a water inlet is formed in the right end of the water pump shaft.
Further optimizing the technical scheme, the left end of the water pump shaft is provided with a hollow driving shaft; the periphery of the hollow driving shaft is provided with a locking thread; a boss is arranged on the right side of the impeller; the impeller is fixed on the locking thread of the hollow driving shaft through a boss.
Further optimizing the technical scheme, the left end of the boss is provided with a groove; a locking nut is arranged at the left end of the hollow driving shaft in the groove, and the impeller is fixedly locked on the hollow driving shaft from left to right through the locking nut.
Further optimizing the technical scheme, the middle part of the impeller is provided with a round hole; the left side of the round hole is open, and the right side of the round hole is communicated with the hollow driving shaft.
Further optimizing the technical scheme, the middle part of the right side of the motor body is fixedly provided with a pressing cover; the pressing cover is internally provided with a pressing hole; and the right end of the motor body and the water pump shaft are sealed through a secondary mechanical water seal.
The technical scheme is further optimized, and the right end of the water pump shaft exceeds the right side of the pressure cover by 20-50 cm.
Compared with the prior art, the utility model has the following advantages:
1. when the motor works, the water pump shaft rotates, the impeller is driven to rotate through the hollow driving shaft, water enters from the right end of the water pump shaft, then enters the central part of the impeller through the hollow structure, and is thrown out from the water outlet on one side of the volute under the centrifugal action; water passes through the inside of the motor when flowing through the center of the water pump shaft, so that the inside of the motor is substantially cooled through water cooling, the motor works in a low-temperature state, the burning loss phenomenon of the motor cannot occur, and the power consumption of the water pump is low.
2. The motor body right side middle part is fixed to be provided with presses the cover, press the inside secondary mechanical water seal that is provided with of cover, through secondary mechanical water seal between motor body right-hand member and the water pump shaft, carry out secondary seal to the motor body right-hand member through secondary mechanical water seal, prevent that water from getting into inside the motor body, sealed effect is better.
3. The right end of the water pump shaft exceeds the right side of the pressure cover by 20-50cm, the water pump can be directly put into water for use, also can be used outside, and when the water pump is used outside, the right end of the water pump shaft is provided with the rotary joint, and the other end of the rotary joint is provided with the water inlet pipe.
Drawings
Fig. 1 is a perspective view of the overall structure of a hollow water pump shaft assembly.
FIG. 2 is a partial cross-sectional view of an integral structural internal mounting structure of a hollow water pump shaft assembly.
FIG. 3 is a schematic view of an impeller portion mounting structure of a hollow water pump shaft assembly.
FIG. 4 is a partial exploded view of an impeller portion mounting structure of a hollow water pump shaft assembly.
FIG. 5 is a partial cross-sectional view of an impeller portion mounting structure of a hollow water pump shaft assembly.
FIG. 6 is a partial cross-sectional view of a water pump shaft right end mounting structure of a hollow water pump shaft assembly.
In the figure: 1. a motor body; 2. a volute; 201. a water outlet; 3. an internal flow hollow pump shaft assembly; 301. a water pump shaft; 302. an impeller; 303. a water inlet; 304. a hollow drive shaft; 305. locking the threads; 306. a boss; 307. a groove; 308. locking a nut; 309. a circular hole; 4. pressing the cover; 401. and (5) secondary mechanical water sealing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows: referring to fig. 1-6, a hollow water pump shaft assembly is characterized in that: comprises a motor body 1, a volute 2 and an internal flow hollow pump shaft device 3; the volute 2 is fixedly arranged at the left end of the motor body 1; the left side of the volute 2 is sealed; a water outlet 201 is formed in one side of the volute 2; the internal flow hollow pump shaft device 3 is arranged in the middle of the motor body 1 in a penetrating way; the internal flow hollow pump shaft device 3 comprises a water pump shaft 301 and an impeller 302; the water pump shaft 301 penetrates through the middle of the motor body 1; the water pump shaft 301 and the left end and the right end of the motor body 1 are sealed; the impeller 302 is disposed inside the volute 2; the water pump shaft 301 is of a hollow shaft structure, and a water inlet 303 is formed in the right end of the water pump shaft 301.
Preferably, a hollow driving shaft 304 is arranged at the left end of the water pump shaft 301; the periphery of the hollow driving shaft 304 is provided with a locking thread 305; a boss 306 is arranged on the right side of the impeller 302; the impeller 302 is secured to the locking thread 305 of the hollow drive shaft 304 by a boss 306.
Preferably, the left end of the boss 306 is provided with a groove 307; a locking nut 308 is arranged at the left end of the hollow driving shaft 304 in the groove 307, and the impeller 302 is fixed and locked on the hollow driving shaft 304 left and right through the locking nut 308.
Preferably, a circular hole 309 is formed in the middle of the impeller 302; the circular hole 309 is open on the left side and communicates with the hollow drive shaft 304 on the right side.
Preferably, a pressing cover 4 is fixedly arranged in the middle of the right side of the motor body 1; a secondary mechanical water seal 401 is arranged inside the pressure cover 4; the right end of the motor body 1 and the water pump shaft 301 are sealed through a secondary mechanical water seal 401.
Preferably, the right end of the water pump shaft 301 exceeds the right side of the pressure cover 4 by 20-50 cm.
When the water pump is used, in the first step, as shown in the figure, when the water pump is started, the motor works to drive the water pump shaft 301 to rotate together, because the hollow driving shaft 304 is arranged at the left end of the water pump shaft 301, the locking thread 305 is arranged on the periphery of the hollow driving shaft 304, the boss 306 is arranged at the right side of the impeller 302, and the impeller 302 is fixed on the locking thread 305 of the hollow driving shaft 304 through the boss 306, the impeller 302 is driven to rotate together when the water pump shaft 301 rotates, water in the middle of the impeller 302 is centrifuged outwards when the impeller 302 rotates, and the water is discharged from the water outlet 201 at one side of the volute 2 under the action of centrifugal force.
Because the left side of the volute 2 is sealed, the water pump shaft 301 is of a hollow shaft structure, the right end of the water pump shaft 301 is provided with the water inlet 303, water can enter from the water inlet 303 at the right end of the hollow shaft, then flows to the left side through the inside of the water pump shaft 301, and then flows out from the left end of the water pump shaft 301, and the middle part of the impeller 302 is provided with the round hole 309; the left side of the round hole 309 is open, the right side of the round hole is communicated with the hollow driving shaft 304, and water flowing out of the hollow driving shaft 304 at the left end of the water pump shaft 301 enters the round hole 309 to supplement water to the middle of the impeller 302.
Flowing water flow is formed at the water inlet 303 at the right end of the water pump shaft 301, the hollow shaft in the water pump shaft 301, the impeller 302 and the water outlet 201 at one side of the volute 2, and the water pump shaft 301 penetrates through the motor body 1, so that when the water flow passes through the motor body 1, the interior of the motor is substantially cooled, and the cooling effect is good.
In summary, when the motor works, the water pump shaft 301 rotates, the hollow driving shaft 304 drives the impeller 302 to rotate, water enters from the right end of the water pump shaft 301, then enters the central part of the impeller 302 through the hollow structure, and the water is thrown out from the water outlet 201 on one side of the volute 2 under the centrifugal action; when water flows through the center of the water pump shaft 301, the water passes through the interior of the motor, so that the interior of the motor is substantially cooled through water cooling, the motor works in a low-temperature state, the phenomenon of burning of the motor cannot occur, and the power consumption of the water pump is low.
The right end of the water pump shaft 301 exceeds the right side of the pressure cover 4 by 20-50cm, the water pump can be directly put into water for use, and can also be used outside.
When the impeller 302 of the water pump is maintained, the shell on the left side of the volute 2 is opened, the right end of the water pump shaft 301 is fixed, the left end of the boss 306 is provided with a groove 307, the left end of the hollow driving shaft 304 inside the groove 307 is provided with a locking nut 308, the impeller 302 is fixed and locked on the hollow driving shaft 304 left and right through the locking nut 308, the middle of the impeller 302 is provided with a round hole 309, the locking nut 308 is pushed reversely through a straight screwdriver at the position of the round hole 309 on the left side, the locking nut 308 is detached from the hollow driving shaft 304, then the impeller 302 can be taken down by reversely rotating the impeller 302, and the subsequent detachment and installation processes are convenient.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A hollow water pump shaft assembly which is characterized in that: comprises a motor body (1), a volute (2) and an internal flow hollow pump shaft device (3); the volute (2) is fixedly arranged at the left end of the motor body (1); the left side of the volute (2) is sealed; a water outlet (201) is formed in one side of the volute (2); the internal flow hollow pump shaft device (3) is arranged in the middle of the motor body (1) in a penetrating manner; the internal flow hollow pump shaft device (3) comprises a water pump shaft (301) and an impeller (302); the water pump shaft (301) is arranged in the middle of the motor body (1) in a penetrating mode; the water pump shaft (301) and the left end and the right end of the motor body (1) are sealed; the impeller (302) is arranged inside the volute (2); the water pump shaft (301) is of a hollow shaft structure, and a water inlet (303) is formed in the right end of the water pump shaft (301).
2. The hollow water pump shaft assembly of claim 1, wherein: a hollow driving shaft (304) is arranged at the left end of the water pump shaft (301); the periphery of the hollow driving shaft (304) is provided with a locking thread (305); a boss (306) is arranged on the right side of the impeller (302); the impeller (302) is fixed on the locking thread (305) of the hollow driving shaft (304) through a boss (306).
3. The hollow water pump shaft assembly of claim 2, wherein: a groove (307) is arranged at the left end of the boss (306); a locking nut (308) is arranged at the left end of the hollow driving shaft (304) in the groove (307), and the impeller (302) is fixed and locked on the left and right of the hollow driving shaft (304) through the locking nut (308).
4. The hollow water pump shaft assembly of claim 2, wherein: a round hole (309) is formed in the middle of the impeller (302); the left side of the round hole (309) is open, and the right side of the round hole is communicated with the hollow driving shaft (304).
5. The hollow water pump shaft assembly of claim 1, wherein: a pressure cover (4) is fixedly arranged in the middle of the right side of the motor body (1); a secondary mechanical water seal (401) is arranged in the pressure cover (4); the right end of the motor body (1) and the water pump shaft (301) are sealed through a secondary mechanical water seal (401).
6. The hollow water pump shaft assembly of claim 5, wherein: the right end of the water pump shaft (301) exceeds the right side of the pressure cover (4) by 20-50 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121808392.6U CN216241454U (en) | 2021-08-04 | 2021-08-04 | Hollow water pump shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121808392.6U CN216241454U (en) | 2021-08-04 | 2021-08-04 | Hollow water pump shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241454U true CN216241454U (en) | 2022-04-08 |
Family
ID=80980763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121808392.6U Active CN216241454U (en) | 2021-08-04 | 2021-08-04 | Hollow water pump shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241454U (en) |
-
2021
- 2021-08-04 CN CN202121808392.6U patent/CN216241454U/en active Active
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