CN209781229U - Water pump structure - Google Patents
Water pump structure Download PDFInfo
- Publication number
- CN209781229U CN209781229U CN201822216911.4U CN201822216911U CN209781229U CN 209781229 U CN209781229 U CN 209781229U CN 201822216911 U CN201822216911 U CN 201822216911U CN 209781229 U CN209781229 U CN 209781229U
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- pump body
- motor
- front side
- rear side
- impeller
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Abstract
A water pump structure comprises a pump body, a front gland, a motor shaft, an impeller and a mechanical seal; the front side of the pump body is a runner port, the rear side of the pump body is closed, the center of the pump body is provided with a shaft hole, the front gland is connected to the front side of the pump body through a first fastener, the rear side of the pump body is connected to the front side of the motor through a second fastener, one end of a motor shaft of the motor penetrates into the pump body through the shaft hole, one end of the motor shaft is provided with an impeller, and the mechanical seal is arranged on the part between the rear side of the pump body on the motor shaft and the impeller. The pump cover is omitted, the rear side structure of the pump body is modified, the pump body is directly connected with the motor, the mechanical seal is changed into the mechanical seal to be installed between the rear side of the pump body and the impeller, the front side structure of the pump body is also modified, the front gland is disassembled, and the structure of the internal flow channel is guaranteed to be unchanged while the installation requirement is met. After the improvement, the structure is more compact, the shaft length is shortened, the shaft rigidity is increased, the deflection is reduced, and the operation is more stable and reliable; the material of the pump cover is saved, and the cost is saved.
Description
Technical Field
The utility model relates to a water pump structure.
Background
Referring to fig. 1, the existing horizontal single-stage single-suction cantilever centrifugal pump includes a pump body 1, a pump cover 2, a motor 4, a motor shaft 6, an impeller 7 and a mechanical seal 8, the pump cover 2 is arranged on the rear side of the pump body 1, the rear side of the pump body 1 is connected with the front side of the pump cover 2 through a first fastener 3, the motor 4 is arranged on the rear side of the pump cover 2, the rear side of the pump cover 2 is connected with the front side of the motor 4 through a second fastener 5, the motor shaft 6 of the motor 5 penetrates through the pump cover 2 to enter the pump body 1 as the pump shaft, the impeller 7 is arranged in the pump body 1 and is mounted on the motor shaft 6, and the mechanical seal 8 is mounted on a part of the motor shaft. There are the following disadvantages: 1. the part of the motor shaft 6 extending out of the motor 4 is longer, the length between the motor 4 and the mechanical seal 8 is an invalid length, and the excessively long length can influence the deflection of the shaft and possibly cause the friction of a water pump and other conditions; 2. the motor shaft 6 has a long length, wastes material, and is not compact, and the first fastening member 3 and the second fastening member 5 may interfere with each other.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem, a water pump structure is provided.
The purpose of the utility model can be realized by the following technical scheme: a water pump structure comprises a pump body, a front gland, a motor shaft, an impeller and a mechanical seal; the front side of the pump body is runner mouth, and the rear side of the pump body is sealed and the center is equipped with the shaft hole, preceding gland is connected in the front side of the pump body through first fastener, the rear side of the pump body is connected in the front side of motor through the second fastener, the one end of the motor shaft of motor is passed through the shaft hole and is worn to the pump body in, and one of motor shaft is served and is installed the impeller, mechanical seal installs on the part between pump body rear side and the impeller on the motor shaft.
Further, the first fastener and the second fastener each include a bolt, a nut, and a washer.
Furthermore, a first boss spigot and a first flange structure which correspond to the pump body front side runner port are arranged on the front gland, the front gland realizes radial positioning through the first boss spigot and the pump body front side runner port, and the front gland realizes circumferential positioning and axial positioning through the first fastener and the first flange structure and the pump body front side.
Furthermore, the rear side of the pump body and the front side of the motor are respectively and correspondingly provided with a groove spigot and a second boss spigot, the rear side of the pump body and the front side of the motor realize radial positioning through the groove spigot and the second boss spigot, the rear side of the pump body and the front side of the motor are respectively provided with a second flange structure and a motor mounting plate, the motor mounting plate is provided with a hole corresponding to a flange hole in the second flange structure, and the rear side of the pump body and the front side of the motor realize circumferential positioning and axial positioning through a second fastener, the second flange structure and the motor mounting plate.
Furthermore, the impeller is sleeved on the motor shaft to realize radial positioning, the impeller is circumferentially positioned with the motor shaft in a key connection mode, and the impeller is axially positioned through a nut and a shaft shoulder of the motor shaft.
Compared with the prior art, the beneficial effects of the utility model are that: the structure of the water pump is optimized, the pump cover is omitted, the rear side structure of the pump body is modified, the pump body is directly connected with the motor, the mechanical seal is changed into installation between the rear side of the pump body and the impeller, the front side structure of the pump body is also modified, the front gland is disassembled, and the structure of the internal flow channel is guaranteed to be unchanged while the installation requirement is met. After the improvement, the length of the part of the motor shaft extending out of the motor is shortened, the structure is more compact, the pump body is directly connected with the motor, the shaft length is shortened, the shaft rigidity is increased compared with the prior art, the deflection is reduced, and the operation is more stable and reliable; compared with the prior art, the structure material of the pump cover is almost saved, the material usage of the product is reduced, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of a partial structure of the present invention.
The components in fig. 1 are numbered as follows:
The pump body 1, the pump cover 2, the first fastening piece 3, the motor 4, the second fastening piece 5, the motor shaft 6, the impeller 7 and the mechanical seal 8.
The components in fig. 2 and 3 are numbered as follows:
The pump body 1, 101 second flange structures, 2 front gland, 201 first boss spigot, 202 first flange structures, 3 first fasteners, 4 motors, 401 second boss spigot, 402 motor mounting plates, 5 second fasteners, 6 motor shafts, 7 impellers and 8 mechanical seals.
Detailed Description
the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 2 and 3, the water pump structure comprises a pump body 1, a front gland 2, a motor 4, a motor shaft 6, an impeller 7 and a mechanical seal 8.
The front side of the pump body 1 is a runner port, the rear side of the pump body 1 is closed, a shaft hole is formed in the center of the pump body 1, the front gland 2 is connected to the front side of the pump body 1 through a first fastener 3, a first boss spigot 201 and a first flange structure 202 which correspond to the runner port on the front side of the pump body 1 are arranged on the front gland 2, the front gland 2 and the runner port on the front side of the pump body 1 are radially positioned through the first boss spigot 201, and the front gland 2 and the front side of the pump body 1 are circumferentially and axially positioned through the first fastener 3 and the first flange structure 202; the rear side of the pump body 1 is connected to the front side of the motor 4 through the second fastener 5, the rear side of the pump body 1 and the front side of the motor 4 are respectively and correspondingly provided with a groove spigot and a second boss spigot 401, the rear side of the pump body 1 and the front side of the motor 4 are respectively and correspondingly positioned in the radial direction through the groove spigot and the second boss spigot 401, the rear side of the pump body 1 and the front side of the motor 4 are respectively provided with a second flange structure 101 and a motor mounting plate 402, a hole corresponding to the flange hole in the second flange structure 101 is formed in the motor mounting plate 402, the rear side of the pump body 1 and the front side of the motor 4 are respectively and correspondingly positioned in the circumferential direction and the axial direction through the second fastener 5, the second flange structure 101 and the motor mounting plate 402.
The one end of motor shaft 6 of motor 4 is worn to the pump body 1 in as the pump shaft through the shaft hole, and one of motor shaft 6 is served and is installed impeller 7, impeller 7 overlaps and realizes radial positioning on motor shaft 6, and impeller 7 realizes the circumference location through the mode of key-type connection and motor shaft 6, and impeller 7 realizes axial positioning through the shaft shoulder of nut and motor shaft 6.
The mechanical seal 8 is located in the pump body 1, and the mechanical seal 8 is mounted on the motor shaft 6 at a portion between the rear side of the pump body 1 and the impeller 7.
The first and second fastening members 3 and 5 each include a bolt, a nut, and a washer.
Carry out configuration optimization to the water pump structure, cancel the pump cover, modify the rear side structure of the pump body 1, make the pump body 1 directly be connected with motor 4, mechanical seal 8 changes to install between the rear side of the pump body 1 and impeller 7, modifies the front side structure of the pump body 1, and the gland 2 before the split is gone out, when satisfying the installation requirement, guarantees that the interior runner structure is unchangeable. After the improvement, the length of the part of the motor shaft 6 extending out of the motor 4 is shortened, the structure is more compact, the pump body 1 is directly connected with the motor 4, the shaft length is shortened, the shaft rigidity is increased compared with the prior art, the deflection is reduced, and the operation is more stable and reliable; compared with the prior art, the structure material of the pump cover is almost saved, the material usage of the product is reduced, and the cost is saved.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (5)
1. A water pump structure is characterized by comprising a pump body, a front gland, a motor shaft, an impeller and a mechanical seal; the front side of the pump body is runner mouth, and the rear side of the pump body is sealed and the center is equipped with the shaft hole, preceding gland is connected in the front side of the pump body through first fastener, the rear side of the pump body is connected in the front side of motor through the second fastener, the one end of the motor shaft of motor is passed through the shaft hole and is worn to the pump body in, and one of motor shaft is served and is installed the impeller, mechanical seal installs on the part between pump body rear side and the impeller on the motor shaft.
2. The water pump structure as claimed in claim 1, wherein the first and second fasteners each include a bolt, a nut, and a washer.
3. The water pump structure of claim 1, wherein the front gland is provided with a first boss spigot and a first flange structure corresponding to the pump body front side flow passage, the front gland realizes radial positioning with the pump body front side flow passage through the first boss spigot, and the front gland realizes circumferential positioning and axial positioning with the pump body front side through the first fastener and the first flange structure.
4. The water pump structure according to claim 1, wherein the rear side of the pump body and the front side of the motor are respectively and correspondingly provided with a groove spigot and a second boss spigot, the rear side of the pump body and the front side of the motor are radially positioned through the groove spigot and the second boss spigot, the rear side of the pump body and the front side of the motor are respectively provided with a second flange structure and a motor mounting plate, the motor mounting plate is provided with a hole corresponding to the flange hole in the second flange structure, and the rear side of the pump body and the front side of the motor are circumferentially positioned and axially positioned through a second fastener, the second flange structure and the motor mounting plate.
5. The water pump structure of claim 1, wherein the impeller is sleeved on the motor shaft to achieve radial positioning, the impeller is circumferentially positioned with the motor shaft in a key connection manner, and the impeller is axially positioned through a nut and a shaft shoulder of the motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216911.4U CN209781229U (en) | 2018-12-27 | 2018-12-27 | Water pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216911.4U CN209781229U (en) | 2018-12-27 | 2018-12-27 | Water pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781229U true CN209781229U (en) | 2019-12-13 |
Family
ID=68791023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822216911.4U Active CN209781229U (en) | 2018-12-27 | 2018-12-27 | Water pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781229U (en) |
-
2018
- 2018-12-27 CN CN201822216911.4U patent/CN209781229U/en active Active
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