CN111648976A - Energy-saving water pump with axial magnetic suspension rotor characteristics - Google Patents

Energy-saving water pump with axial magnetic suspension rotor characteristics Download PDF

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Publication number
CN111648976A
CN111648976A CN202010659615.0A CN202010659615A CN111648976A CN 111648976 A CN111648976 A CN 111648976A CN 202010659615 A CN202010659615 A CN 202010659615A CN 111648976 A CN111648976 A CN 111648976A
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CN
China
Prior art keywords
magnetic ring
suspension
rotor
suspension magnetic
permanent magnet
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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.)
Pending
Application number
CN202010659615.0A
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Chinese (zh)
Inventor
罗桂萍
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Zhuhai Xinhao Technology Co ltd
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Zhuhai Xinhao Technology Co ltd
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Priority to CN202010659615.0A priority Critical patent/CN111648976A/en
Publication of CN111648976A publication Critical patent/CN111648976A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/0462—Bearing cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/181—Axial flow rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/528—Casings; Connections of working fluid for axial pumps especially adapted for liquid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of water pumps and discloses an energy-saving water pump with axial magnetic suspension rotor characteristics, which comprises a base, wherein the bottom of the base is fixedly connected with a motor driver, the top of the base is fixedly connected with a lower bearing cover, a lower sliding bearing is fixedly arranged on the lower bearing cover, the top of the lower sliding bearing is fixedly provided with a first suspension magnetic ring, and the first suspension magnetic ring and the lower sliding bearing are fixedly arranged on the upper end surface of the lower bearing cover. The permanent magnet rotor rotates at a high speed, the permanent magnet rotor and all parts fixed on the permanent magnet rotor do not have friction and contact of any mechanical part in the axial direction and are in an absolute suspension state, so that the loss of useless work is greatly reduced, the energy efficiency of a product is greatly improved, the service life of the product is prolonged, the flow rate of water can be increased through the impeller or the pressurizing screw or the turbofan impeller with special shapes and structures, and the efficiency is improved.

Description

Energy-saving water pump with axial magnetic suspension rotor characteristics
Technical Field
The invention relates to the technical field of water pumps, in particular to an energy-saving water pump with axial magnetic suspension rotor characteristics.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of the prime mover of the water pump or other external energy to the liquid to increase the energy of the liquid, and is mainly used for transferring the liquid including water, oil, acid-base liquid, emulsion, suspoemulsion, etc. Water pumps have long generally been axially restrained against the rotor assembly by ball bearings or direct mechanical contact of the axial end faces. The stator of the water pump drives the rotor part and the impeller fixed on the rotor part to rotate at a high speed, and the water body or liquid is pushed to flow or is discharged under the action of the high-speed rotation of the impeller. The rotor assembly can receive axial reaction force in the running process of the water pump, the limiting device of the rotor assembly in the water pump structure is used for resisting the reaction force, the direction of the axial reaction force received by the rotor assembly during working of most of water pumps after being designed is determined and unidirectional, and the rotor assembly can receive at least one group of axial reaction force in a certain way regardless of the design of the water inlet direction and the water outlet direction of the water pump, and the direction of the axial reaction force is opposite to the water inlet direction or the water outlet direction. The invention relates to an energy-saving water pump with axial magnetic suspension rotor characteristics, which fundamentally solves the defects at present and also solves the problem of loss maintenance of a ball bearing and an end face contact type limiting device.
Disclosure of Invention
The invention aims to provide an energy-saving water pump with an axial magnetic suspension rotor characteristic, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving water pump with axial magnetic suspension rotor characteristics comprises a base, wherein a motor driver is fixedly connected to the bottom of the base, a lower bearing cover is fixedly connected to the top of the base, a lower sliding bearing is fixedly mounted on the lower bearing cover, a first suspension magnetic ring is fixedly mounted at the top of the lower sliding bearing, the first suspension magnetic ring and the lower sliding bearing are fixedly mounted on the upper end face of the lower bearing cover, a brushless motor shell is fixedly mounted at the top of the lower bearing cover, a stator is mounted on the inner wall of the brushless motor shell, a stator wire frame is mounted and fixed on the stator, a permanent magnet rotor is mounted in a concentric circular cavity of the stator and the brushless motor shell, a first suspension magnetic ring and a second suspension magnetic ring are fixedly mounted on the permanent magnet rotor and a rotating shaft, and a second suspension magnetic ring is mounted and fixed in the first suspension magnetic ring downwards, a third suspension magnetic ring is upwards installed and fixed in the second suspension magnetic ring, a closed impeller is installed and fixed at the upper end of the rotating shaft, the first suspension magnetic ring, the second suspension magnetic ring, the third suspension magnetic ring and the closed impeller belong to attachments of the permanent magnet rotor, an upper bearing cover is installed and fixed at the upper part of the brushless motor shell, an upper sliding bearing and a fourth suspension magnetic ring are fixedly installed on the upper bearing cover, the upper sliding bearing is located at the upper part of the fourth suspension magnetic ring, a flow guide cover is installed and fixed on the upper end face of the brushless motor shell, 5 spiral flow guide plates are structurally designed on the flow guide cover, the closed impeller is located at an inner hole of the flow guide cover after being assembled, the inner hole diameter of the flow guide cover is 0.5-1MM larger than the outer diameter of the circular wall of the closed impeller, and the attachments of the permanent magnet rotor and the permanent magnet rotor are arranged at radial lower sliding bearing and the upper And (7) supporting.
Preferably, a first suspension magnetic ring and a shaft sleeve are fixed at the top of the base, the permanent magnet rotor is fixed by injection molding of a plastic one-time injection molding turbofan impeller-rotor glue or is fixed by injection molding of a plastic one-time injection molding rotor glue, the turbofan impeller-rotor glue or the rotor glue is provided with a center hole flow channel with a center penetrating through, a second suspension magnetic ring is installed and fixed at the lower end part of the turbofan impeller-rotor glue or the rotor glue, a boosting screw rod is installed and fixed in the center hole flow channel of the rotor glue, an upper sliding bearing and a lower sliding bearing are respectively and fixedly installed at the upper end and the lower end of a central axis of the turbofan impeller-rotor glue or the boosting screw rod, the shaft sleeve is installed and fixed at the upper part of the brushless motor shell, and two ends of the rotating shaft are installed and fixed between the.
Preferably, one end of the brushless motor shell is connected with a water inlet cover, and one end of the water inlet cover is fixedly provided with a shaft sleeve and a suspension magnetic ring IV; the suspension magnetic ring IV and the shaft sleeve are arranged in a superposed manner, the suspension magnetic ring IV is arranged on the end surface of the water inlet cover, the brushless motor shell is provided with a water outlet flow channel joint perpendicular to the axial direction of the water inlet cover, and the shaft sleeve and the suspension magnetic ring I are fixedly arranged on the other end of the brushless motor shell; the first suspension magnetic ring and the shaft sleeve are installed in an overlapping mode, the first suspension magnetic ring is arranged on the end face of the inner protruding platform of the brushless motor shell, and a rotating shaft is fixedly installed between the shaft sleeve and the shaft sleeve.
Preferably, the permanent magnet rotor and the rotating shaft are formed by one-time injection molding and fixing of plastic magnet, and the plastic magnet is punched to form the permanent magnet rotor during injection molding.
Preferably, the closed impeller has 5 spiral blades and an outer circular wall.
Preferably, the end faces of the second suspension magnetic ring and the first suspension magnetic ring are opposite and have no mechanical contact, and the polarity of the end faces is the same.
Preferably, the end faces of the suspension magnetic ring IV and the suspension magnetic ring III are opposite and have no mechanical contact, and the polarity of the end faces is the same.
The invention provides an energy-saving water pump with axial magnetic suspension rotor characteristics. The method has the following beneficial effects:
(1) according to the invention, through the high-speed rotation of the permanent magnet rotor, the permanent magnet rotor and all parts fixed on the permanent magnet rotor do not have friction and contact of any mechanical part in the axial direction and are in an absolute suspension state, so that the loss of idle work is greatly reduced, the energy efficiency of a product is greatly improved, and the service life of the product is greatly prolonged.
(2) The invention can increase the flow rate of water through the impeller with special shape and structure or the booster screw or the turbofan impeller, thereby increasing the efficiency.
Drawings
FIG. 1 is a block diagram of a first embodiment of the present invention;
FIG. 2 is a perspective view of a first embodiment of the present invention;
FIG. 3 is a partial block diagram of a first embodiment of the present invention;
FIG. 4 is a view showing the structure of a pressurizing screw according to a second embodiment of the present invention;
FIG. 5 is a structural view of a turbofan impeller according to a second embodiment of the present invention;
fig. 6 is a structural diagram of a third embodiment of the present invention.
In the figure: the device comprises a motor driver 1, a base 2, a lower bearing cover 3, a lower sliding bearing 4, a first suspension magnetic ring 5, a second suspension magnetic ring 6, a first suspension magnetic ring 7, a permanent magnet rotor 8, a second suspension magnetic ring 9, a third suspension magnetic ring 10, a fourth suspension magnetic ring 11, a sliding bearing 12, an upper bearing cover 13, a rotating shaft 14, an impeller 15, a diversion cover 16, a brushless motor shell 17, a stator 18, a stator coil holder 19, a pressurizing screw 20 and a turbofan impeller 21.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1-3:
an energy-saving water pump with axial magnetic suspension rotor characteristics comprises a base 2, a motor driver 1 is fixedly connected to the bottom of the base 2, a lower bearing cover 3 is fixedly connected to the top of the base 2, a lower sliding bearing 4 is fixedly installed on the lower bearing cover 3, a first suspension magnetic ring 5 is fixedly installed on the top of the lower sliding bearing 4, the first suspension magnetic ring 5 and the lower sliding bearing 4 are fixedly installed on the upper end face of the lower bearing cover 3, a brushless motor shell 17 is fixedly installed on the top of the lower bearing cover 3, a stator 18 is installed on the inner wall of the brushless motor shell 17, a stator wire frame 19 is installed and fixed on the stator 18, a permanent magnet rotor 8 is installed in a concentric circular cavity of the stator 18 and the brushless motor shell 17, a first suspension magnetic ring 7 and a second suspension magnetic ring 9 are fixedly installed on the permanent magnet rotor 8 and a rotating shaft 14, a second suspension magnetic ring 6 is installed and fixed in the first suspension magnetic ring 7, and a third suspension magnetic ring 10 is, the upper end of a rotating shaft 14 is fixedly provided with a closed impeller 15, the rotating shaft 14, a first suspension magnetic ring 7, a second suspension magnetic ring 9, a second suspension magnetic ring 6, a third suspension magnetic ring 10 and the closed impeller 15 belong to attachments of a permanent magnet rotor 8, the upper part of a brushless motor shell 17 is fixedly provided with an upper bearing cover 13, the upper bearing cover 13 is fixedly provided with an upper sliding bearing 12 and a fourth suspension magnetic ring 11, the upper sliding bearing 12 is positioned at the upper part of the fourth suspension magnetic ring 11, the upper end surface of the brushless motor shell 17 is fixedly provided with a flow guide cover 16, the flow guide cover 16 is structurally provided with 5 spiral flow guide sheets, the closed impeller 15 is assembled and positioned at the inner hole of the flow guide cover 16, the inner hole diameter of the flow guide cover 16 is 0.5-1 larger than the outer diameter of the circular wall of the closed impeller 15, the attachments of the permanent magnet rotor 8 and the permanent magnet rotor 8 are supported by the lower sliding bearing 4 and the upper sliding bearing 12, the plastic magnet is punched to form a permanent magnet rotor 8 during injection molding, the closed impeller 15 is provided with 5 spiral blades and an outer circular ring wall, the end faces of the second suspension magnetic ring 6 and the first suspension magnetic ring 5 are opposite and have no mechanical contact, the polarity of the end faces is the same, the end faces of the fourth suspension magnetic ring 11 and the third suspension magnetic ring 10 are opposite and have no mechanical contact, and the polarity of the end faces is the same.
Example two:
as shown in fig. 4-5:
an energy-saving water pump with axial magnetic suspension rotor characteristics comprises a base 2, a motor driver 1 is fixedly connected to the bottom of the base 2, a lower bearing cover 3 is fixedly connected to the top of the base 2, a lower sliding bearing 4 is fixedly installed on the lower bearing cover 3, a first suspension magnetic ring 5 is fixedly installed on the top of the lower sliding bearing 4, the first suspension magnetic ring 5 and the lower sliding bearing 4 are fixedly installed on the upper end face of the lower bearing cover 3, a brushless motor shell 17 is fixedly installed on the top of the lower bearing cover 3, a stator 18 is installed on the inner wall of the brushless motor shell 17, a stator wire frame 19 is installed and fixed on the stator 18, a permanent magnet rotor 8 is installed in a concentric circular cavity of the stator 18 and the brushless motor shell 17, a first suspension magnetic ring 7 and a second suspension magnetic ring 9 are fixedly installed on the permanent magnet rotor 8 and a rotating shaft 14, a second suspension magnetic ring 6 is installed and fixed in the first suspension magnetic ring 7, and a third suspension magnetic ring 10 is, the upper end of a rotating shaft 14 is fixedly provided with a closed impeller 15, the rotating shaft 14, a first suspension magnetic ring 7, a second suspension magnetic ring 9, a second suspension magnetic ring 6, a third suspension magnetic ring 10 and the closed impeller 15 belong to attachments of a permanent magnet rotor 8, the upper part of a brushless motor shell 17 is fixedly provided with an upper bearing cover 13, the upper bearing cover 13 is fixedly provided with an upper sliding bearing 12 and a fourth suspension magnetic ring 11, the upper sliding bearing 12 is positioned at the upper part of the fourth suspension magnetic ring 11, the upper end surface of the brushless motor shell 17 is fixedly provided with a flow guide cover 16, the flow guide cover 16 is structurally provided with 5 spiral flow guide sheets, the closed impeller 15 is assembled at an inner hole of the flow guide cover 16, the inner hole diameter of the flow guide cover 16 is 0.5-1 larger than the outer diameter of the circular wall of the closed impeller 15, the attachments of the permanent magnet rotor 8 and the permanent magnet rotor 8 are supported by the lower sliding bearing 4 and the upper sliding bearing 12, the permanent magnet rotor 8 is fixed by injection molding of a turbofan impeller-rotor glue 22 formed by one-time injection molding of plastics or by injection molding of a rotor glue 21 formed by one-time injection molding of plastics, a center hole flow passage with a center penetrating is designed on the turbofan impeller-rotor glue 22 or the rotor glue 21, a suspension magnetic ring II 6 is fixedly installed at the lower end part of the turbofan impeller-rotor glue 22 or the rotor glue 21, a pressurizing screw 20 is fixedly installed in the center hole flow passage of the rotor glue 21, an upper sliding bearing 12 and a lower sliding bearing 4 are respectively and fixedly installed at the upper end and the lower end of a central axis of the turbofan impeller-rotor glue 22 or the pressurizing screw 20, a shaft sleeve 23 is fixedly installed at the upper part of the brushless motor shell 17, a shaft sleeve 23 is fixedly installed at the two ends of the rotating shaft 14 between the shaft sleeve 23 and the shaft sleeve 23, the permanent magnet rotor 8 and the rotating shaft 14 are formed by one-time, the closed impeller 15 is provided with 5 spiral blades and an outer circular ring wall, the end faces of the second suspension magnetic ring 6 and the first suspension magnetic ring 5 are opposite and have no mechanical contact, the polarity of the end faces is the same, the end faces of the fourth suspension magnetic ring 11 and the third suspension magnetic ring 10 are opposite and have no mechanical contact, and the polarity of the end faces is the same.
Example three:
as shown in fig. 6:
an energy-saving water pump with axial magnetic suspension rotor characteristics comprises a base 2, a motor driver 1 is fixedly connected to the bottom of the base 2, a lower bearing cover 3 is fixedly connected to the top of the base 2, a lower sliding bearing 4 is fixedly installed on the lower bearing cover 3, a first suspension magnetic ring 5 is fixedly installed on the top of the lower sliding bearing 4, the first suspension magnetic ring 5 and the lower sliding bearing 4 are fixedly installed on the upper end face of the lower bearing cover 3, a brushless motor shell 17 is fixedly installed on the top of the lower bearing cover 3, a stator 18 is installed on the inner wall of the brushless motor shell 17, a stator wire frame 19 is installed and fixed on the stator 18, a permanent magnet rotor 8 is installed in a concentric circular cavity of the stator 18 and the brushless motor shell 17, a first suspension magnetic ring 7 and a second suspension magnetic ring 9 are fixedly installed on the permanent magnet rotor 8 and a rotating shaft 14, a second suspension magnetic ring 6 is installed and fixed in the first suspension magnetic ring 7, and a third suspension magnetic ring 10 is, the upper end of a rotating shaft 14 is fixedly provided with a closed impeller 15, the rotating shaft 14, a first suspension magnetic ring 7, a second suspension magnetic ring 9, a second suspension magnetic ring 6, a third suspension magnetic ring 10 and the closed impeller 15 belong to attachments of a permanent magnet rotor 8, the upper part of a brushless motor shell 17 is fixedly provided with an upper bearing cover 13, the upper bearing cover 13 is fixedly provided with an upper sliding bearing 12 and a fourth suspension magnetic ring 11, the upper sliding bearing 12 is positioned at the upper part of the fourth suspension magnetic ring 11, the upper end surface of the brushless motor shell 17 is fixedly provided with a flow guide cover 16, the flow guide cover 16 is structurally provided with 5 spiral flow guide sheets, the closed impeller 15 is assembled and positioned at the inner hole of the flow guide cover 16, the inner hole diameter of the flow guide cover 16 is 0.5-1 larger than the outer diameter of the circular wall of the closed impeller 15, the attachments of the permanent magnet rotor 8 and the permanent magnet rotor 8 are supported by the lower sliding bearing 4 and the upper sliding bearing 12, the plastic magnet is punched to form a permanent magnet rotor 8 during injection molding, the closed impeller 15 is provided with 5 spiral blades and an outer circular ring wall, the end faces of the second suspension magnetic ring 6 and the first suspension magnetic ring 5 are opposite and have no mechanical contact, the polarity of the end faces is the same, the end faces of the fourth suspension magnetic ring 11 and the third suspension magnetic ring 10 are opposite and have no mechanical contact, and the polarity of the end faces is the same.
In conclusion, through the high-speed rotation of the permanent magnet rotor 8, the permanent magnet rotor 8 and all the components fixed on the permanent magnet rotor 8 do not have the friction and contact of any mechanical component in the axial direction and are in an absolute suspension state, so that the loss of useless work is greatly reduced, the energy efficiency of the product is greatly improved, the service life of the product is greatly prolonged, the flow rate of water can be increased through the impeller 15 or the booster screw 20 or the turbofan impeller 21 with special shapes and structures, and the efficiency is improved.

Claims (7)

1. The utility model provides an energy-conserving water pump of axial magnetic suspension rotor characteristic which characterized in that: including base (2), bottom fixedly connected with motor drive (1) of base (2), bearing cap (3) under the top fixedly connected with of base (2), fixed mounting has lower sliding bearing (4) down on bearing cap (3) down, the top fixed mounting of lower sliding bearing (4) has suspension magnetic ring (5), suspension magnetic ring (5) with lower sliding bearing (4) fixed mounting be in the up end of lower bearing cap (3), the top fixed mounting of lower bearing cap (3) has brushless motor shell (17), stator (18) is installed to the inner wall of brushless motor shell (17), the installation is fixed with stator line frame (19) on stator (18), stator (18) with install permanent magnet rotor (8) in the concentric circle intracavity of brushless motor shell (17), permanent magnet rotor (8) with fixed mounting has suspension magnetic ring (7) and suspension magnetic ring on pivot (14) A suspension magnetic ring II (6) is installed and fixed downwards in the suspension magnetic ring I (7), a suspension magnetic ring III (10) is installed and fixed upwards in the suspension magnetic ring II (9), a closed impeller (15) is installed and fixed at the upper end of the rotating shaft (14), the suspension magnetic ring I (7), the suspension magnetic ring II (9), the suspension magnetic ring II (6), the suspension magnetic ring III (10) and the closed impeller (15) belong to attachments of the permanent magnet rotor (8), an upper bearing cover (13) is installed and fixed at the upper part of the brushless motor shell (17), an upper sliding bearing (12) and a suspension magnetic ring IV (11) are fixedly installed on the upper bearing cover (13), the upper sliding bearing (12) is positioned at the upper part of the suspension magnetic ring IV (11), a flow guide cover (16) is installed and fixed on the upper end face of the brushless motor shell (17), the structural design of water conservancy diversion lid (16) has 5 spiral water conservancy diversion pieces, be in after closed impeller (15) equipment the hole department of water conservancy diversion lid (16) just the hole diameter ratio of water conservancy diversion lid (16) the rampart external diameter of closed impeller (15) is big 0.5-1MM, permanent magnet rotor (8) with the attachment of permanent magnet rotor (8) in radial lower sliding bearing (4) with go up sliding bearing (12) and support.
2. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: the top of the base (2) is fixed with a suspension magnetic ring I (5) and a shaft sleeve (23), the permanent magnet rotor (8) is fixed by injection molding of a plastic turbofan impeller-rotor rubber (22) formed by one-time injection molding or is fixed by injection molding of a plastic rotor rubber (21) formed by one-time injection molding, a center hole flow passage with a center penetrating is designed in the turbofan impeller-rotor rubber (22) or the rotor rubber (21), a suspension magnetic ring II (6) is fixedly installed at the lower end part of the turbofan impeller-rotor rubber (22) or the rotor rubber (21), a boosting screw rod (20) is fixedly installed in the center hole flow passage of the rotor rubber (21), an upper sliding bearing (12) and a lower sliding bearing (4) are fixedly installed at the upper end and the lower end of the central axis of the turbofan impeller-rotor rubber (22) or the boosting screw rod (20) respectively, and the shaft sleeve (23) is fixedly installed at the upper part of the brushless motor casing (17), and two ends of the rotating shaft (14) are fixedly arranged between the shaft sleeve (23) and the shaft sleeve (23).
3. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: one end of the brushless motor shell (17) is connected with a water inlet cover (24), and one end of the water inlet cover (24) is fixedly provided with a shaft sleeve (23) and a suspension magnetic ring IV (11); the suspension magnetic ring IV (11) and the shaft sleeve (23) are installed in an overlapped mode, the suspension magnetic ring IV (11) is arranged on the end face of the water inlet cover (24), the brushless motor shell (17) is provided with a water outlet flow channel joint perpendicular to the axis direction of the water inlet cover (24), and the shaft sleeve (23) and the suspension magnetic ring I (5) are installed and fixed on the other end of the brushless motor shell (17); the first suspension magnetic ring (5) and the shaft sleeve (23) are installed in an overlapped mode, the first suspension magnetic ring (5) is arranged on the end face of the inner protruding platform of the brushless motor shell (17), and a rotating shaft (14) is fixedly installed between the shaft sleeve (23) and the shaft sleeve (23).
4. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: the permanent magnet rotor (8) and the rotating shaft (14) are formed by one-time injection molding and fixing of plastic magnet, and the plastic magnet is punched to form the permanent magnet rotor (8) during injection molding.
5. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: the closed impeller (15) is provided with 5 spiral blades and an outer circular wall.
6. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: the end faces of the second suspension magnetic ring (6) and the first suspension magnetic ring (5) are opposite and do not have mechanical contact, and the polarities of the end faces are the same.
7. The energy-saving water pump with the axial magnetic suspension rotor as claimed in claim 1, is characterized in that: the end faces of the four suspension magnetic rings (11) and the three suspension magnetic rings (10) are opposite and have no mechanical contact, and the polarities of the end faces are the same.
CN202010659615.0A 2020-07-09 2020-07-09 Energy-saving water pump with axial magnetic suspension rotor characteristics Pending CN111648976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010659615.0A CN111648976A (en) 2020-07-09 2020-07-09 Energy-saving water pump with axial magnetic suspension rotor characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010659615.0A CN111648976A (en) 2020-07-09 2020-07-09 Energy-saving water pump with axial magnetic suspension rotor characteristics

Publications (1)

Publication Number Publication Date
CN111648976A true CN111648976A (en) 2020-09-11

Family

ID=72352568

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010659615.0A Pending CN111648976A (en) 2020-07-09 2020-07-09 Energy-saving water pump with axial magnetic suspension rotor characteristics

Country Status (1)

Country Link
CN (1) CN111648976A (en)

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