CN220646216U - Bearingless water pump with cooling function - Google Patents

Bearingless water pump with cooling function Download PDF

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Publication number
CN220646216U
CN220646216U CN202322005477.6U CN202322005477U CN220646216U CN 220646216 U CN220646216 U CN 220646216U CN 202322005477 U CN202322005477 U CN 202322005477U CN 220646216 U CN220646216 U CN 220646216U
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CN
China
Prior art keywords
water pump
bearingless
rotor
cooling
stainless steel
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CN202322005477.6U
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Chinese (zh)
Inventor
张爱民
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Shanghai Tianjuan Electromechanical Equipment Co ltd
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Shanghai Tianjuan Electromechanical Equipment Co ltd
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Abstract

The utility model discloses a bearingless water pump with a cooling function, wherein one end of a bearingless motor is provided with an end cover, the outer end of the end cover is provided with a water pump shell, the inner wall of the motor shell is provided with a stator, a cylinder shaft in the stator is provided with a rotor, one end of the rotor, which is close to the water pump shell, is inserted with an impeller shaft, one end of the impeller shaft is arranged in the water pump shell and is provided with an impeller, the inside of the motor shell is provided with a stainless steel cooling sleeve, the stainless steel cooling sleeve is arranged in the rotor and is movably connected with the rotor, one end of the stainless steel cooling sleeve, which is far away from the water pump shell, is open and is provided with a gland, and the gland is provided with a cooling water inlet and a cooling water outlet.

Description

Bearingless water pump with cooling function
Technical Field
The utility model relates to the technical field of water pumps, in particular to a bearingless water pump with a cooling function.
Background
A water pump is a machine that delivers or pressurizes a liquid. It transmits mechanical energy or other external energy of prime mover to liquid to increase energy of liquid, and is mainly used for conveying liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal. Liquids, gas mixtures, and liquids containing suspended solids may also be delivered. Technical parameters of the water pump performance include flow, suction lift, shaft power, water power, efficiency and the like; according to different working principles, the water pump can be divided into a volumetric water pump, a vane pump and the like.
At present, a water pump mainly comprises a pump body and a motor, a bearingless motor is a common driving source, a winding which generates radial force in a magnetic bearing is arranged on a motor stator according to the similarity of the electromagnetic force generated by the magnetic bearing and the motor, and the independent control of the motor torque and the radial levitation force is realized through decoupling control. However, the existing bearingless water pump has poor cooling effect, and after long-term use, the motor part is easy to overheat, so that the stability and the service life are reduced, and therefore, an improved technology is needed to solve the problems in the prior art.
Disclosure of Invention
The utility model aims to provide a bearingless water pump with a cooling function, wherein a stainless steel cooling sleeve is arranged in a motor shell and is inserted into a rotor, on one hand, circulating cooling water flows in the stainless steel cooling sleeve, so that the cooling effect of a bearingless motor in the water pump is improved, the service life of the bearingless motor is further prolonged, and on the other hand, the rotor is supported, so that the stability of the rotor is improved, and the stability of an impeller shaft is further ensured, so that the problems in the background art are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the bearingless water pump with the cooling function comprises a bearingless motor, a water pump shell, an impeller shaft, an impeller, a stainless steel cooling sleeve and a gland, wherein an end cover is arranged at one end of the bearingless motor, the outer end of the end cover is provided with the water pump shell, a water pump inlet is arranged at one end, far away from the bearingless motor, of the water pump shell, and a water pump outlet is arranged at the top of the water pump shell;
the bearingless motor comprises a motor shell, a stator, a rotor and permanent magnets, wherein the stator is arranged on the inner wall of the motor shell, a torque winding and a levitation force winding are arranged on the stator, a rotor is arranged on an inner cylinder shaft of the stator, a plurality of permanent magnets are arranged on the outer surface of the rotor, an impeller shaft is inserted into the rotor and close to one end of the water pump shell, one end of the impeller shaft is arranged in the water pump shell and is provided with an impeller, a stainless steel cooling sleeve is arranged in the motor shell and is movably connected with the rotor, one end of the stainless steel cooling sleeve, far away from the water pump shell, is open and is provided with a gland, a cooling water inlet and a cooling water outlet are formed in the gland, and the cooling water inlet and the cooling water outlet are all extended into the stainless steel cooling sleeve.
Preferably, the utility model provides a bearingless water pump with a cooling function, wherein one end of the impeller shaft is connected with the side wall of the rotor through a bolt.
Preferably, the utility model provides a bearingless water pump with a cooling function, wherein the inner diameter of the rotor is consistent with the outer diameter of a stainless steel cooling sleeve.
Preferably, the bearingless water pump with the cooling function provided by the utility model is characterized in that the gland is connected with the outer end of the motor shell through bolts.
Preferably, the utility model provides a bearingless water pump with a cooling function, wherein a fixing plate is arranged at the bottom of a motor shell.
Preferably, the bearing-free water pump with the cooling function is provided, wherein a hem is arranged at the outer end of the stainless steel cooling sleeve, and the hem is connected with a gland.
Compared with the prior art, the utility model has the beneficial effects that:
the novel impeller motor is reasonable and simple in structure and convenient to assemble and disassemble, the stainless steel cooling sleeve is arranged inside the motor shell and inserted inside the rotor, on one hand, cooling water flowing and circulating inside the stainless steel cooling sleeve flows, so that the cooling effect of the bearingless motor in the water pump is improved, the service life of the bearingless motor is prolonged, the rotor is supported on the other hand, the stability of the rotor is improved, and the stability of the impeller shaft is further guaranteed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the internal cross-sectional structure of the motor housing;
FIG. 4 is a schematic elevational view of the present utility model;
FIG. 5 is a schematic view of the direction of water flow according to the present utility model.
In the figure: the water pump comprises a water pump housing 1, a water pump water inlet 2, a water pump water outlet 3, an impeller shaft 4, an impeller 5, a stainless steel cooling sleeve 6, a gland 7, a motor housing 8, a stator 9, a rotor 10, a permanent magnet 11, a cooling water inlet 12, a cooling water outlet 13, an end cover 14, a torque winding 15, a levitation force winding 16, a fixing plate 17 and a flange 18.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model and the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model;
it should be noted that, in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the bearingless water pump with the cooling function comprises a bearingless motor, a water pump shell 1, an impeller shaft 4, an impeller 5, a stainless steel cooling sleeve 6 and a gland 7, wherein one end of the bearingless motor is provided with an end cover 14, the outer end of the end cover 14 is provided with the water pump shell 1, one end, far away from the bearingless motor, of the water pump shell 1 is provided with a water pump inlet 2, and the top of the water pump shell 1 is provided with a water pump outlet 3;
the bearingless motor comprises a motor shell 8, a stator 9, a rotor 10 and permanent magnets 11, wherein the stator 9 is arranged on the inner wall of the motor shell 8, a torque winding and a levitation force winding are arranged on the stator 9, the rotor 10 is arranged on an inner cylinder shaft of the stator 9, a plurality of permanent magnets 11 are arranged on the outer surface of the rotor 10, an impeller shaft 4 is inserted into one end, close to the water pump shell 1, of the rotor 10, one end of the impeller shaft 4 is connected with the side wall of the rotor 10 through bolts so as to realize connection of the impeller shaft 4 and the rotor 10, one end of the impeller shaft 4 is arranged in the water pump shell 1 and is provided with an impeller 5, a stainless steel cooling sleeve 6 is arranged in the motor shell 8, the stainless steel cooling sleeve 6 is arranged in the rotor 10 and movably connected with the rotor 10, the inner diameter of the stainless steel cooling sleeve 6 is consistent with the outer diameter of the stainless steel cooling sleeve 6, the stability of the rotating shaft 10 is improved through the support of the stainless steel cooling sleeve 6, one end, the gland 7 is far away from the water pump shell 1 and is provided with a gland 7, the outer end of the motor shell 8 through bolts so that the gland 7 is connected with the side wall of the motor shell 8, the gland 7 is conveniently mounted and dismounted, the gland 7 is provided with a cooling water inlet 12 and a cooling water outlet 13, the cooling water outlet 12 and a cooling water outlet 13 are fixedly connected with the stainless steel cooling sleeve 18, the stainless steel cooling sleeve is fixedly arranged at the bottom of the motor shell, and the stainless steel cooling sleeve is fixedly connected with the stainless steel cooling sleeve 8, and the stainless steel cooling sleeve is fixedly mounted at the bottom 18, and the motor shell is fixedly mounted inside the cooling sleeve and the cooling sleeve is provided with the stainless steel cooling sleeve 18.
The assembly method and the use principle are as follows: one end of the impeller shaft 4 is inserted into one end of the interior of the rotor 10, and then the rotor 10 is inserted into the motor housing 8, the end cap 14 is capped, and the impeller shaft 4 is passed through the end cap 14, with the rotor 10 being located within the stator 9. Then, the stainless steel cooling jacket 6 is inserted into the rotor 10, the flange 18 of the stainless steel cooling jacket 6 corresponds to the screw hole at the outer end of the motor housing 8, then the gland 7 with the cooling water inlet 12 and the cooling water outlet 13 is pressed at the flange 18, the bolts pass through the gland 7 and the flange 18 and are matched with the screw hole of the motor housing 8, and the assembly of the bearingless motor is completed. Finally, the impeller 5 is arranged at the outer end of the impeller shaft 4, and the water pump housing 1 is covered, so that the assembly is completed. When in use, the rotor 10 drives the impeller shaft 4 to rotate, and the impeller shaft 4 drives the impeller 5 to rotate, so as to achieve the purpose of pumping water. In the process, the cooling water is fed into the cooling water inlet 12, the cooling water is recycled from the cooling water outlet 13, and the recycled cooling water flows in the stainless steel cooling jacket 6, so that the purpose of cooling the inside of the bearingless motor is achieved. The utility model has reasonable and simple structure, is convenient to assemble and disassemble, the stainless steel cooling sleeve 6 is arranged in the motor shell 8, the stainless steel cooling sleeve 6 is inserted in the rotor 10, on one hand, the stainless steel cooling sleeve 6 flows circulating cooling water inside, thereby improving the cooling effect of the bearingless motor in the water pump, further improving the service life of the bearingless motor, and on the other hand, the motor shell supports the rotor 10, thereby improving the stability of the rotor 10, and further ensuring the stability of the impeller shaft 4.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (6)

1. The utility model provides a bearingless water pump with cooling function which characterized in that: the novel water pump comprises a bearingless motor, a water pump shell (1), an impeller shaft (4), an impeller (5), a stainless steel cooling sleeve (6) and a gland (7), wherein one end of the bearingless motor is provided with an end cover (14), the outer end of the end cover (14) is provided with the water pump shell (1), one end, far away from the bearingless motor, of the water pump shell (1) is provided with a water pump inlet (2), and the top of the water pump shell (1) is provided with a water pump outlet (3);
the bearingless motor comprises a motor shell (8), a stator (9), a rotor (10) and permanent magnets (11), wherein the stator (9) is arranged on the inner wall of the motor shell (8), a torque winding (15) and a levitation force winding (16) are arranged on the stator (9), the rotor (10) is arranged on the inner cylinder shaft of the stator (9), a plurality of permanent magnets (11) are arranged on the outer surface of the rotor (10), an impeller shaft (4) is inserted into the rotor (10) and is close to one end of the water pump shell (1), one end of the impeller shaft (4) is arranged in the water pump shell (1) and is provided with an impeller (5), a stainless steel cooling sleeve (6) is arranged in the rotor (10) and is movably connected with the rotor (10), the stainless steel cooling sleeve (6) is far away from one end of the water pump shell (1) and is provided with a gland (7), the gland (7) is provided with a cooling water inlet (12) and a cooling water outlet (13), and the cooling water outlet (12) and the cooling water outlet (13) are respectively extended to the inside the stainless steel cooling sleeve (6).
2. A bearingless water pump with cooling function as set forth in claim 1, wherein: one end of the impeller shaft (4) is connected with the side wall of the rotor (10) through a bolt.
3. A bearingless water pump with cooling function as set forth in claim 1, wherein: the inner diameter of the rotor (10) is consistent with the outer diameter of the stainless steel cooling sleeve (6).
4. A bearingless water pump with cooling function as set forth in claim 1, wherein: the gland (7) is connected with the outer end of the motor shell (8) through bolts.
5. A bearingless water pump with cooling function as set forth in claim 1, wherein: the bottom of the motor shell (8) is provided with a fixed plate (17).
6. A bearingless water pump with cooling function as set forth in claim 1, wherein: the outer end of the stainless steel cooling sleeve (6) is provided with a folded edge (18), and the folded edge (18) is connected with the gland (7).
CN202322005477.6U 2023-07-28 2023-07-28 Bearingless water pump with cooling function Active CN220646216U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322005477.6U CN220646216U (en) 2023-07-28 2023-07-28 Bearingless water pump with cooling function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322005477.6U CN220646216U (en) 2023-07-28 2023-07-28 Bearingless water pump with cooling function

Publications (1)

Publication Number Publication Date
CN220646216U true CN220646216U (en) 2024-03-22

Family

ID=90263451

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322005477.6U Active CN220646216U (en) 2023-07-28 2023-07-28 Bearingless water pump with cooling function

Country Status (1)

Country Link
CN (1) CN220646216U (en)

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