CN216407204U - Low-noise water supply pump - Google Patents
Low-noise water supply pump Download PDFInfo
- Publication number
- CN216407204U CN216407204U CN202123342818.6U CN202123342818U CN216407204U CN 216407204 U CN216407204 U CN 216407204U CN 202123342818 U CN202123342818 U CN 202123342818U CN 216407204 U CN216407204 U CN 216407204U
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- bearing
- water supply
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a low-noise water supply pump, which comprises a pump head, a motor, a sliding bearing component, a circulating pipe and a shaft, wherein the motor is arranged on one side of the pump head and is connected with the pump head; the pump head comprises a pump body, an impeller and a pump cover, the pump cover is arranged on one side of the pump body, the pump body and the pump cover form a volute pump cavity, and the impeller is arranged in the pump cavity; the motor comprises a motor shell, a stator core, a rotor core, a winding and a squirrel cage, wherein one end of the motor shell is provided with the pump cover, and the other end of the motor shell is provided with a motor gland; the electromagnetic wire of the winding is a waterproof electromagnetic wire, the waterproof insulating sleeve is of a double-layer structure, the motor shell, the pump body and the motor gland are all made of foam aluminum alloy, and the squirrel cage is made of cast copper. The utility model reduces the noise of the water supply pump, prevents the shaft seal from leaking, and simultaneously improves the efficiency of the pump.
Description
Technical Field
The utility model relates to a water pump, in particular to a low-noise water supply pump.
Background
The water supply pump is often used for domestic water supply in a building, and therefore, in order to avoid an influence on residents or the environment, the water supply pump is required to have low noise, no leakage, and the like.
However, the existing water supply pump has many defects or shortcomings, on one hand, the noise of the water supply pump is high, sometimes the noise of the pump reaches 80 decibels, so that the noise is intolerable to residents, therefore, the noise disturbs the complaint events of residents, whether the hydraulic noise, the electromagnetic noise or the motor fan noise is the main source of the noise of the water supply pump, and the noise from a rolling bearing and a coupling is not ignored; on the other hand, leakage of the water supply pump causes pollution, and increases the operation cost of the property industry.
In a word, the existing water supply pump has high noise and serious leakage, and generates high cost for application and maintenance.
Disclosure of Invention
In order to solve the problems, the utility model provides a low-noise water supply pump which can well solve the defects of noise pollution, influence of leakage on the environment and the like of the water supply pump in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a low-noise water supply pump comprises a pump head, a motor, a sliding bearing component, a circulating pipe and a shaft, wherein the motor is arranged on one side of the pump head and connected with the pump head, and the sliding bearing component and the shaft are arranged inside the motor;
the pump head comprises a pump body, an impeller and a pump cover, the pump cover is arranged on one side of the pump body, the pump body and the pump cover form a volute pump cavity, the pump cavity is a cavity, the impeller is arranged in the pump cavity, and the impeller is fixed at one end of the shaft; a pump body mouth ring is embedded in the pump body inlet, the outer circle of the impeller inlet is arranged in the pump body mouth ring, and a certain radial gap is formed between the inner hole of the pump body mouth ring and the outer circle of the impeller inlet;
the motor comprises a motor shell, a stator core, a rotor core, a winding and a squirrel cage, wherein one end of the motor shell is provided with the pump cover, and the other end of the motor shell is provided with a motor gland; the stator core is embedded in the inner hole of the motor shell, the rotor core is sleeved on the shaft, and a certain radial gap is formed between the excircle of the rotor core and the inner hole of the stator core; a junction box is arranged at the top of the motor shell, a binding post is arranged in the junction box, and a potting layer is arranged between the binding post and the motor shell; the winding end part penetrates through the motor shell and the potting layer to be connected with the binding post; the motor shell, the motor gland and the pump cover enclose a motor cavity, and the motor cavity is a cavity;
the sliding bearing component comprises a first bearing body, a first bearing sleeve, a second bearing body and a second bearing sleeve, the first bearing body and the second bearing body are respectively embedded in the pump cover and the motor gland, and the first bearing sleeve and the second bearing sleeve are both sleeved on the shaft; the first bearing body and the first bearing sleeve form a set of sliding bearing, and the second bearing body and the second bearing sleeve form a set of sliding bearing;
a round nut and an impeller nut are respectively arranged at two ends of the shaft, the round nut locks the second bearing sleeve, and the impeller nut locks the first bearing sleeve and the impeller; the shaft is provided with a key, and the impeller is connected with the shaft through the key; one end of the circulating pipe is connected with the motor gland, the other end of the circulating pipe is connected with the outlet of the pump body, and the motor cavity is communicated with the pump cavity through the circulating pipe.
As a further improvement of the utility model, the electromagnetic wire of the winding is a waterproof electromagnetic wire, and the waterproof insulating sleeve is of a double-layer structure.
As a further improvement of the utility model, the material of the potting layer is epoxy resin with good insulation and sealing performance.
As a further improvement of the utility model, the motor shell, the pump body and the motor gland are all made of foamed aluminum alloy.
As a further improvement of the utility model, the stator core and the rotor core are integrally impregnated with epoxy resin by vacuum pressure impregnation.
As a further improvement of the utility model, the squirrel cage is cast copper.
As a further improvement of the utility model, the first bearing sleeve and the second bearing sleeve are both composed of sleeve-shaped and disc-shaped structures.
Compared with the prior art, the utility model has the beneficial effects that:
1. the noise of the water supply pump is reduced: the noise of the water supply pump can be reduced by 5-10 decibels, and the noise disturbing to the residents is effectively avoided.
2. Shaft seal leakage is avoided: the shaft seal water supply pump in the prior art is changed into a shaft seal-free water supply pump, so that the influence of leakage on the environment is avoided, and the maintenance cost is saved.
3. The efficiency of pump has been improved: thereby saving energy costs of operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
fig. 1 is a schematic structural view of the present invention.
In the figure: 1. pump head, 2, motor, 3, sliding bearing component, 4, circulating pipe, 5, shaft, 11, pump body, 12, impeller, 13, pump cover, 14, impeller nut, 15, pump body opening ring, 16, key, 17, pump cavity, 21, motor housing, 22, stator core, 23, rotor core, 24, winding, 25, squirrel cage, 26, binding post, 27, junction box, 28, motor gland, 29, encapsulation layer, 30, motor cavity, 31, first bearing body, 32, first bearing sleeve, 33, second bearing body, 34, second bearing sleeve, 51, round nut.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the mechanical connection can be welding, riveting, threaded connection, flange connection or the like; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 1, the utility model provides a low-noise water supply pump, which comprises a pump head 1, a motor 2, a sliding bearing component 3, a circulating pipe 4 and a shaft 5, wherein the motor 2 is arranged at one side of the pump head 1 and is connected with the pump head 1, and the sliding bearing component 3 and the shaft 5 are arranged inside the motor 2. The pump head 1 is an actuator of the water supply pump, and is used for generating pressure and conveying fluid. The motor 2 is a power element for driving the pump head 1. The sliding bearing component 3 is a supporting component of a rotor component of the water supply pump and bears the radial force and the axial force of the rotor component, and the circulating pipe 4 is used for supplying circulating liquid which washes, cools and lubricates the sliding bearing component 3.
The pump head 1 comprises a pump body 11, an impeller 12 and a pump cover 13, wherein the pump cover 13 is arranged on one side of the pump body 11, the pump body 11 and the pump cover 13 form a volute pump cavity 17, the pump cavity 17 is a cavity, the impeller 12 is arranged in the pump cavity 17, and the impeller 12 is fixed at one end of the shaft 5. A pump body mouth ring 15 is embedded at the inlet of the pump body 11, the outer circle of the inlet of the impeller 12 is arranged in the pump body mouth ring 15, and a certain radial gap is formed between the inner hole of the pump body mouth ring 15 and the outer circle of the inlet of the impeller 12. The radial clearance is only 0.2-0.3 mm, which divides the pump chamber 17 into a high pressure region and a low pressure region and prevents the high pressure liquid from flowing back from the high pressure region to the low pressure region.
The motor 2 comprises a motor shell 21, a stator core 22, a rotor core 23, a winding 24 and a squirrel cage 25, wherein one end of the motor shell 21 is provided with a pump cover 13, and the other end of the motor shell is provided with a motor gland 28. The stator core 22 is embedded in the inner hole of the motor shell 21, the rotor core 23 is sleeved on the shaft 5, and a certain radial gap is arranged between the outer circle of the rotor core 23 and the inner hole of the stator core 22, namely the air gap of the motor. A junction box 27 is arranged at the top of the motor shell 21, a binding post 26 is arranged in the junction box 27, and a potting layer 29 is arranged between the binding post 26 and the motor shell 21. The end of the winding 24 is connected to the terminal 26 through the motor housing 21 and the potting layer 29. The motor housing 21, the motor gland 28 and the pump cover 13 enclose a motor cavity 30, and the motor cavity 30 is a cavity. The potting layer 29 is made of epoxy resin with good insulation and sealing performance, and the motor cavity 30 and the junction box 27 are completely insulated, isolated and sealed by the potting layer 29, so that the medium in the motor cavity 30 cannot leak into the junction box 27. The electromagnetic wire of winding 24 is waterproof electromagnetic wire, and waterproof insulating cover is bilayer structure, guarantees the sealed and insulating of waterproof electromagnetic wire when submerging. The stator core 22 and the rotor core 23 are integrally impregnated with epoxy resin under vacuum pressure, so that corrosion resistance and insulation of the stator core 22 and the rotor core 23 are ensured. The squirrel cage 25 is cast copper, which has a higher efficiency than the cast aluminum squirrel cages of the prior art.
The sliding bearing component 3 includes a first bearing body 31, a first bearing sleeve 32, a second bearing body 33 and a second bearing sleeve 34, the first bearing body 31 and the second bearing body 33 are respectively embedded in the pump cover 13 and the motor gland 28, and the first bearing sleeve 32 and the second bearing sleeve 34 are both sleeved on the shaft 5. The first bearing body 31 and the first bearing sleeve 32 constitute a set of sliding bearings, the second bearing body 33 and the second bearing sleeve 34 constitute a set of sliding bearings, one end face of the bearing body serves as a thrust surface of the sliding bearings, and the inner bore of the bearing body serves as a radial bearing surface of the sliding bearings. The first bearing sleeve 32 and the second bearing sleeve 34 are both formed of a sleeve-like and a disc-like structure, one end face of the disc-like structure serves as a thrust surface of the sliding bearing, and the outer circle of the sleeve-like structure serves as a radial bearing surface of the sliding bearing. The thrust surface and the bearing surface are provided with grooves for lubrication, the sliding bearing uses water as a lubricant, and the water as the lubricant lubricates, cools and washes the sliding bearing.
The shaft 5 is provided at both ends thereof with a round nut 51 and an impeller nut 14, respectively, the round nut 51 locking the second bearing sleeve 34, and the impeller nut 14 locking the first bearing sleeve 32 and the impeller 12. The shaft 5 is provided with a key 16, and the impeller 12 is connected with the shaft 5 through the key 16. The circulation pipe 4 is connected to the motor gland 28 at one end and to the outlet of the pump body 11 at the other end, and the circulation pipe 4 connects the motor chamber 30 and the pump chamber 17.
Static seals are arranged between the motor shell 21 and the pump body 11 and between the motor gland 28, and the water supply pump does not extend axially outwards, so that the water supply pump is a leakage-free pump, and the influence on the environment caused by leakage is avoided.
The cooling method of the water supply pump motor 2 is water cooling, the motor cooling fan in the prior art is cancelled, the main source of noise is eliminated, meanwhile, most electromagnetic noise is absorbed by cooling water when the cooling water flows through the motor cavity 30, and finally the materials of the motor shell 21, the pump body 11 and the motor gland 28 are foamed aluminum alloy, so that the vibration and noise reduction effect is achieved, the noise of the water supply pump is low, and the noise pollution is greatly reduced. The elimination of the motor fan reduces the power input and therefore improves the efficiency of the pump.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A low noise water supply pump characterized in that: the motor is arranged on one side of the pump head and is connected with the pump head, and the sliding bearing component and the shaft are arranged in the motor;
the pump head comprises a pump body, an impeller and a pump cover, the pump cover is arranged on one side of the pump body, the pump body and the pump cover form a volute pump cavity, the pump cavity is a cavity, the impeller is arranged in the pump cavity, and the impeller is fixed at one end of the shaft; a pump body mouth ring is embedded in the pump body inlet, the outer circle of the impeller inlet is arranged in the pump body mouth ring, and a certain radial gap is formed between the inner hole of the pump body mouth ring and the outer circle of the impeller inlet;
the motor comprises a motor shell, a stator core, a rotor core, a winding and a squirrel cage, wherein one end of the motor shell is provided with the pump cover, and the other end of the motor shell is provided with a motor gland; the stator core is embedded in the inner hole of the motor shell, the rotor core is sleeved on the shaft, and a certain radial gap is formed between the excircle of the rotor core and the inner hole of the stator core; a junction box is arranged at the top of the motor shell, a binding post is arranged in the junction box, and a potting layer is arranged between the binding post and the motor shell; the winding end part penetrates through the motor shell and the potting layer to be connected with the binding post; the motor shell, the motor gland and the pump cover enclose a motor cavity, and the motor cavity is a cavity;
the sliding bearing component comprises a first bearing body, a first bearing sleeve, a second bearing body and a second bearing sleeve, the first bearing body and the second bearing body are respectively embedded in the pump cover and the motor gland, and the first bearing sleeve and the second bearing sleeve are both sleeved on the shaft; the first bearing body and the first bearing sleeve form a set of sliding bearing, and the second bearing body and the second bearing sleeve form a set of sliding bearing;
a round nut and an impeller nut are respectively arranged at two ends of the shaft, the round nut locks the second bearing sleeve, and the impeller nut locks the first bearing sleeve and the impeller; the shaft is provided with a key, and the impeller is connected with the shaft through the key; one end of the circulating pipe is connected with the motor gland, the other end of the circulating pipe is connected with the outlet of the pump body, and the motor cavity is communicated with the pump cavity through the circulating pipe.
2. The low noise water supply pump according to claim 1, wherein: the electromagnetic wire of the winding is a waterproof electromagnetic wire, and the waterproof insulating sleeve is of a double-layer structure.
3. The low noise water supply pump according to claim 1, wherein: the potting layer is made of epoxy resin with good insulation and sealing performance.
4. The low noise water supply pump according to claim 1, wherein: the motor shell, the pump body and the motor gland are all made of foamed aluminum alloy.
5. The low noise water supply pump according to claim 1, wherein: and the stator iron core and the rotor iron core are integrally impregnated with epoxy resin in a vacuum pressure manner.
6. The low noise water supply pump according to claim 1, wherein: the squirrel cage is cast copper.
7. The low noise water supply pump according to claim 1, wherein: the first bearing sleeve and the second bearing sleeve are both composed of sleeve-shaped and disc-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123342818.6U CN216407204U (en) | 2021-12-28 | 2021-12-28 | Low-noise water supply pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123342818.6U CN216407204U (en) | 2021-12-28 | 2021-12-28 | Low-noise water supply pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407204U true CN216407204U (en) | 2022-04-29 |
Family
ID=81286864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123342818.6U Active CN216407204U (en) | 2021-12-28 | 2021-12-28 | Low-noise water supply pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407204U (en) |
-
2021
- 2021-12-28 CN CN202123342818.6U patent/CN216407204U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101787978A (en) | Novel fully-tubular electric submerged pump with shaft incapable of transferring torque | |
| CN113323894B (en) | Anticorrosive explosion-proof vortex type hydrogen circulating pump | |
| CN109713820A (en) | A kind of oil immersed type magneto | |
| CN201521462U (en) | Novel full through-flow submersible pump | |
| CN214998262U (en) | High-temperature shielding molten salt pump supported by magnetic suspension bearing | |
| CN216407204U (en) | Low-noise water supply pump | |
| CN213185703U (en) | High-temperature-resistant electric isolation cooling pump | |
| CN113202780A (en) | High-temperature shielding molten salt pump supported by magnetic suspension bearing | |
| CN212106347U (en) | Bearing lubricating structure based on submersible full-tubular pump | |
| CN219287256U (en) | High-speed motor | |
| CN205319810U (en) | A cooling body for covering stator in formula motor | |
| CN219287315U (en) | Heat radiation system of high-speed motor | |
| CN212033943U (en) | Self-circulation heat dissipation device for motor of submersible electric pump | |
| CN112821685B (en) | Design method for saving axial space of motor | |
| CN109474110A (en) | A kind of motor for water pump | |
| CN213879475U (en) | Magnetic suspension motor | |
| CN213574658U (en) | High-temperature-resistant large-flow high-speed electronic water pump | |
| CN211930442U (en) | Oil-cooled motor | |
| CN106907331A (en) | A kind of protected type peripheral pump for conveying electronic cooling agent | |
| CN112564408A (en) | Sealed high-voltage direct-current brushless outer rotor fan | |
| KR20220107277A (en) | Permanent Magnet Rotor for Axial Flux Motors | |
| CN219993948U (en) | Cooling pump for conveying aviation cooling liquid | |
| CN1455118A (en) | Water pump | |
| CN218997788U (en) | Direct-drive permanent magnet motor | |
| CN111628613A (en) | Totally-enclosed self-circulation liquid cooling system for hollow rotating shaft of motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |