CN117404315A

CN117404315A - Magnetic coupling fan set

Info

Publication number: CN117404315A
Application number: CN202311548990.8A
Authority: CN
Inventors: 李正强; 冉周; 谢化顺; 汪灵
Original assignee: Fengyou Machinery Shanghai Co ltd
Current assignee: Fengyou Machinery Shanghai Co ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-01-16

Abstract

The invention provides a magnetic coupling fan set, which relates to the technical field of fans and aims to solve the problem that a fan cannot be applied to a high-temperature and high-pressure environment in the prior art. The magnetic coupling fan set can stably work under the conditions of high pressure and high temperature, and has strong practicability and wide application range.

Description

Magnetic coupling fan set

Technical Field

The invention relates to the technical field of fans, in particular to a magnetic coupling fan set.

Background

In the closed space of industrial equipment, a fan is often required to circulate high-pressure high-temperature gas in the closed space, such as increasing the flow and wind pressure in a pipeline.

The existing fan generally adopts a dynamic sealing structure between the impeller and the driving shaft, the sealing effect is not ideal, high-pressure operation cannot be realized in the box body of the impeller, leakage phenomenon often occurs, equipment maintenance is frequent, and the standard of high pressure resistance cannot be reached.

The magnetic force driving fan makes the output shaft of the motor not directly connected with the fan impeller, so that the motor can be used in a high-pressure environment. The utility model discloses a magnetic coupling drive sealed fan in 201621309326.3's file, includes a fan main part, the fan main part seals in a non-magnetic conduction airtight space, the fan main part includes fan drive shaft, fan impeller and interior magnetic means, interior magnetic means installs on the axle head of fan drive shaft, fan impeller with interior magnetic means coaxial coupling is in the middle of the axle of fan drive shaft, the outside driving motor that is equipped with of fan main part, driving motor is connected with an outer magnetic means, outer magnetic means with interior magnetic means position is relative, outer magnetic means with interior magnetic means coupling. The magnetic coupling driving sealed fan connects the fan main body with an inner magnetic device and seals the inner magnetic device in a non-magnetic-conductive closed space, an outer magnetic device arranged outside the closed space is coupled with the inner magnetic device, when the outer magnetic device rotates along with a driving motor, a magnetic field can penetrate through an air gap and a non-magnetic-conductive shell to drive the inner magnetic device to synchronously rotate, and then the inner magnetic device drives the fan to work. By adopting the mechanism, the non-contact transmission of power is realized, so that the driving impeller can be completely sealed in the airtight space of the fan main body, and the tightness of the system is ensured. However, when the fan is applied to a high-temperature environment, the high temperature in the fan body is easily transferred to the inner magnetic device to cause the inner magnetic device and the outer magnetic device to demagnetize, so that the fan cannot be suitable for the high-temperature environment.

Disclosure of Invention

The invention aims to provide a magnetic coupling fan set, which solves the problem that a fan cannot be applied to a high-temperature and high-pressure environment in the prior art.

The invention provides a magnetic coupling fan set which comprises a motor, a magnetic coupling connecting mechanism, a fan main body and a radiator, wherein an output shaft of the motor is connected with an input shaft of the fan main body through the magnetic coupling connecting mechanism, the radiator is arranged between the magnetic coupling connecting mechanism and the fan main body, and the input shaft penetrates through the radiator to radiate heat through the radiator.

As a preferred solution of the present invention, the heat sink includes a first connection portion, a second connection portion, and a heat dissipation portion, where the heat dissipation portion has a hollow cylindrical structure, the first connection portion and the second connection portion are respectively connected to two ends of the heat dissipation portion, the first connection portion is connected to the magnetic coupling connection mechanism, the second connection portion is connected to the fan body, an input shaft of the fan body is disposed through an internal cavity of the heat dissipation portion, bearings are respectively disposed at two ends of the internal cavity of the heat dissipation portion, and the input shaft is disposed through the bearings.

As a preferable mode of the present invention, a plurality of heat radiating fins are provided along an outer periphery of the heat radiating portion, the plurality of heat radiating fins are arranged in a longitudinal direction of the heat radiating portion, and the heat radiating fins are provided perpendicular to an axis of the heat radiating portion.

As a preferred scheme of the invention, the magnetic coupling connection mechanism comprises a magnetic coupling shell, an outer magnetic cylinder, an inner magnetic cylinder and a spacer sleeve, wherein the outer magnetic cylinder, the inner magnetic cylinder and the spacer sleeve are arranged in the magnetic coupling shell, the output shaft is connected with the outer magnetic cylinder, the input shaft extends into the magnetic coupling shell and is connected with the inner magnetic cylinder, the inner magnetic cylinder is arranged on the inner side of the outer magnetic cylinder, the spacer sleeve is arranged between the inner magnetic cylinder and the outer magnetic cylinder, the inner magnetic cylinder and the spacer sleeve are coaxially arranged, and the spacer sleeve is of a cylindrical structure with one end open and the opening end of the spacer sleeve is in sealing connection with the radiator.

As a preferable mode of the invention, a connecting edge is arranged around the opening end of the isolation sleeve, the connecting edge is perpendicular to the axis of the isolation sleeve, a sealing ring groove is arranged on the end face of the radiator, a sealing ring is arranged in the sealing ring groove, and the connecting edge is in sealing connection with the end face of the radiator by the sealing ring.

As a preferable mode of the invention, an adapter shell is arranged on the outer side of the output shaft, the output shaft is coaxially connected with a driving shaft through a coupler, an end plate is connected to one end, close to the motor, of the magnetic coupling shell, the driving shaft penetrates through a bearing seat to extend into the magnetic coupling shell to be connected with the outer magnetic cylinder, the bearing seat is connected to the center of the end plate, and the adapter shell is connected between the end plate and the motor.

As a preferable mode of the present invention, the adapter housing includes a plurality of connecting rods, the plurality of connecting rods are uniformly arranged centering on the output shaft, one end of each connecting rod is connected with the end plate, and the other end is connected with the motor.

As a preferred embodiment of the present invention, the fan body includes a fan housing and an impeller provided in the fan housing, and the input shaft extends into the fan housing and is connected to the impeller.

As a preferable scheme of the invention, the fan comprises a fan body, and is characterized by further comprising a frame, wherein the frame comprises a supporting seat, a motor mounting seat and a mounting base, the top end of the motor mounting seat is connected with the bottom end of the motor, the motor mounting seat is vertically connected with one end of the mounting base, and the other end of the mounting base is connected with the fan body through the supporting seat.

Compared with the prior art, the invention has the following positive effects:

the invention provides a magnetic coupling fan set, which comprises a motor, a magnetic coupling connecting mechanism, a fan main body and a radiator, wherein an output shaft of the motor is connected with an input shaft of the fan main body through the magnetic coupling connecting mechanism, the radiator is arranged between the magnetic coupling connecting mechanism and the fan main body, and the input shaft passes through the radiator. When the magnetic coupling fan set is used, the fan main body is arranged in the closed-loop space, the gas flow in the closed-loop space is increased, and the motor is arranged outside the closed-loop space. The output shaft of motor passes through magnetic coupling mechanism and is connected with the input shaft of fan main part to make the output shaft of motor and the input shaft of fan main part avoid direct contact, when the fan main part is in high pressure environment, separate relatively by motor and fan main part, the motor in the outside is not in high pressure environment, can steady operation. A radiator is arranged between the magnetic coupling connecting mechanism and the fan main body, the input shaft penetrates through the radiator to transmit the power of the motor to the fan main body, when the fan main body is in a high-temperature environment, the radiator is arranged at the outer side of the high-temperature environment, the heat of the input shaft radiates through the radiator when penetrating through the radiator, the temperature of the input shaft is reduced, so that heat transfer from the fan main body to the magnetic coupling connecting mechanism and the motor is reduced, the motor and the magnetic coupling connecting mechanism are not affected by the high temperature on one side of the fan main body, and the motor can run stably, so that the magnetic coupling fan set can work stably under the conditions of high pressure and high temperature.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a magnetically coupled fan assembly according to the present invention;

FIG. 2 is a front view of a magnetically coupled wind turbine assembly of the present invention;

FIG. 3 is a top view of the magnetically coupled wind turbine assembly of the present invention;

fig. 4 is a cross-sectional view of A-A in fig. 3.

In the figure: 1. a motor; 11. an output shaft; 12. a coupling; 13. a drive shaft; 14. a bearing seat; 2. a magnetic coupling connection mechanism; 21. a magnetic coupling housing; 22. an outer magnetic cylinder; 23. a spacer sleeve; 231. connecting edges; 232. a seal ring; 24. an inner magnetic cylinder; 3. a heat sink; 31. a first connection portion; 311. sealing ring grooves; 32. a heat dissipation part; 321. a heat sink; 33. a second connecting portion; 4. a fan main body; 41. a blower housing; 42. an impeller; 43. an input shaft; 44. a bearing; 5. a motor mounting seat; 6. a support base; 7. a mounting base; 8. a transfer case; 81. an end plate; 82. and (5) connecting a rod.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the invention based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

The following describes the embodiments of the present invention in further detail with reference to the drawings.

Example 1:

the magnetic coupling fan set provided in this embodiment, as shown in fig. 1 to 4, includes a motor 1, a magnetic coupling connection mechanism 2, a fan main body 4, and a radiator 3. The output shaft 11 of the motor 1 is connected with the input shaft 43 of the fan body 4 through the magnetic coupling connection mechanism 2, the radiator 3 is arranged between the magnetic coupling connection mechanism 2 and the fan body 4, and the input shaft 43 passes through the radiator 3 and radiates heat through the radiator 3.

When the magnetic coupling fan set in the embodiment is used, the fan main body 4 is arranged in a closed-loop space, the gas flow in the closed-loop space is increased, and the motor 1 is arranged outside the closed-loop space. The output shaft 11 of the motor 1 is connected with the input shaft 43 of the fan main body 4 through the magnetic coupling connection mechanism 2, so that the output shaft 11 of the motor 1 is prevented from being in direct contact with the input shaft 43 of the fan main body 4, and when the fan main body 4 is in a high-pressure environment, the motor 1 is relatively separated from the fan main body 4, and the motor 1 on the outer side is not in the high-pressure environment and can stably run. And be provided with radiator 3 between magnetic coupling mechanism 2 and the fan main part 4, input shaft 43 passes radiator 3 and gives fan main part 4 with the power transmission of motor, when fan main part 4 is in high temperature environment, radiator 3 sets up in the outside of high temperature environment, the heat of input shaft 43 passes radiator 3 when passing radiator 3 and dispels the heat, reduce the temperature of input shaft 43, thereby reduce fan main part 4 and to magnetic coupling mechanism 2 and motor 1 heat transfer, make motor 1 and magnetic coupling mechanism 2 do not receive the high temperature influence of fan main part 4 one side, motor 1 can steady operation, thereby make the magnetic coupling fan group of this embodiment can be under the high pressure high temperature condition steady operation. The fan main body 4 in the magnetic coupling fan set of the embodiment can be in a closed space with pressure of 30KG and temperature of 250 ℃ for long-term use.

Preferably, as shown in fig. 4, the heat sink 3 includes a first connection portion 31, a second connection portion 33, and a heat dissipation portion 32, and the heat dissipation portion 32 has a columnar structure with a hollow interior. The first connecting portion 31 and the second connecting portion 33 are respectively connected to both ends of the heat dissipating portion 32, the first connecting portion 31 is connected to the magnetic coupling mechanism 2, and the second connecting portion 33 is connected to the fan main body 4. The input shaft 43 of the fan main body 4 is disposed through the inner cavity of the heat dissipation portion 32, and heat of the input shaft 43 is dissipated through the heat dissipation portion 32 when the input shaft 43 passes through the inside of the heat dissipation portion 32. Bearings 44 are provided at both ends of the cavity inside the heat sink 32, respectively, and the input shaft 43 is provided through the bearings 44. The input shaft 43 is connected to the heat sink 32 through the bearing 44, and the input shaft 43 is rotated inside the heat sink 32, thereby driving the fan body to operate. Preferably, the first connecting portion 31 and the second connecting portion 33 are both connecting flanges, and the connection is simple and convenient and the sealing performance is good.

Preferably, as shown in fig. 4, a plurality of heat dissipation fins 321 are provided along the outer periphery of the heat dissipation portion 32, the plurality of heat dissipation fins 321 are arranged along the length direction of the heat dissipation portion 32, and the heat dissipation fins 321 are provided perpendicular to the axis of the heat dissipation portion 32. The heat sink 321 is annular, and the heat sink 321 is connected to the outer side of the heat sink 32 to increase the heat dissipation area of the outer side of the heat sink 32, so as to facilitate rapid cooling of the input shaft 43. The heat sink 321 may have a spiral structure around the outside of the heat sink 32.

Preferably, as shown in fig. 4, the magnetic coupling connection mechanism 2 includes a magnetic coupling housing 21, and an outer magnetic cylinder 22, an inner magnetic cylinder 24, and a spacer 23 provided inside the magnetic coupling housing 21. The output shaft 11 is connected with the outer magnetic cylinder 22, the input shaft 43 extends into the magnetic coupling shell 21 and is connected with the inner magnetic cylinder 24, the inner magnetic cylinder 24 is arranged on the inner side of the outer magnetic cylinder 22, the isolation sleeve 23 is arranged between the inner magnetic cylinder 24 and the outer magnetic cylinder 22, the inner magnetic cylinder 24 and the isolation sleeve 23 are coaxially arranged. The spacer 23 has a cylindrical structure with one end opened, and the opening end is connected with the radiator 3 in a sealing manner. The open end of the spacer 23 is sealingly connected to the first connection portion 31. The magnetic coupling housing 21 has a cylindrical structure. The inner magnetic cylinder 24 is located inside the spacer 23. When the output shaft 11 of the motor rotates, the outer magnetic cylinder 22 drives the inner magnetic cylinder 24 to rotate under the action of magnetic force, and then the input shaft 43 drives the fan main body 4 to supply air. The isolation sleeve 23 is connected with the radiator 3 in a sealing way, so that the input shaft 43 and the fan main body 4 are isolated from the motor 1, and the purpose of static sealing is realized. The outer magnetic cylinder 22 is provided with a driving disk and a driving magnetic ring, the driving magnetic ring is connected to the driving disk, and the driving disk is connected to the input shaft 43. The inner magnetic cylinder 24 is provided with a driven disc and a driven magnetic ring, the driven magnetic ring is connected to the driven disc, the driven disc is connected with the input shaft, the driven magnetic ring is arranged on the inner side of the driving magnetic ring, and the driving magnetic ring rotates to drive the driven magnetic ring to rotate. The spacer 23 is preferably made of a non-metallic material, and may be a ceramic material.

Preferably, as shown in fig. 4, a connecting edge 231 is provided around the opening end of the spacer 23, the connecting edge 231 is perpendicular to the axis of the spacer 23, a sealing ring groove 311 is provided on the end surface of the radiator 3, a sealing ring 232 is provided in the sealing ring groove 311, and the sealing ring 232 connects the connecting edge 231 with the end surface of the radiator 3 in a sealing manner. One end of the magnetic coupling housing 21 is connected to the first connection portion 31 and the other end is connected to the end plate 81, so that a space for accommodating the outer magnetic cylinder 22, the inner magnetic cylinder 24, and the spacer 23 is formed between the magnetic coupling housing 21, the first connection portion 31, and the end plate 81. A sealing ring 232 is arranged between the end faces of the isolating sleeve 23 and the radiator 3 so as to better realize static sealing.

Preferably, the adapter housing 8 is disposed on the outer side of the output shaft 11, the output shaft 11 is coaxially connected with the driving shaft 13 through the coupling 12, the coupling 12 has the capability of absorbing vibration and relieving impact, the driving shaft 13 is prevented from bearing excessive load, and the coupling 12 can compensate offset between the output shaft 11 and the driving shaft 13 due to temperature change. An end plate 81 is connected to one end of the magnetic coupling shell 21, which is close to the motor 1, and a driving shaft 13 penetrates through the bearing seat 14 and stretches into the magnetic coupling shell 21 to be connected with the outer magnetic cylinder 22, the bearing seat 14 is connected to the center of the end plate 81, and the output shaft of the motor 1 rotates to drive the driving shaft 13 to rotate in the bearing seat 14. The adapter housing 8 is connected between the end plate 81 and the motor 1, and the adapter housing 8 enables the connection structure between the motor and the end plate 81 to be more stable.

Preferably, the adapter housing 8 includes a plurality of connection rods 82, the plurality of connection rods 82 are uniformly arranged centering on the output shaft 11, one end of the connection rod 82 is connected with the end plate 81 and the other end is connected with the motor 1.

Preferably, as shown in fig. 4, the blower body 4 includes a blower housing 41 and an impeller 42, the impeller 42 is provided in the blower housing 41, and an input shaft 43 extends into the blower housing 41 and is connected to the impeller 42. The second connection portion 33 is connected to one side of the blower housing 41. The motor drives the input shaft and rotates the impeller 42 within the blower housing 41, thereby increasing the flow of gas in the closed-loop space.

Preferably, as shown in fig. 1, the magnetic coupling fan set of this embodiment further includes a frame, the frame includes a supporting seat 6, a motor mounting seat 5 and a mounting base 7, the top end of the motor mounting seat 5 is connected with the bottom end of the motor 1, and the motor mounting seat 5 is vertically connected to one end of the mounting base 7, and the other end of the mounting base 7 is connected with the fan main body 4 through the supporting seat 6. The motor mounting seat 5 and the supporting seat 6 respectively connect the motor 1 and the fan main body 4 with the mounting base 7, and play a role in supporting the motor 1 and the fan main body 4, so that the magnetic coupling fan set structure of the embodiment is more stable.

The above description is only of the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present invention.

Claims

1. The utility model provides a magnetic coupling fan group, its characterized in that, includes motor (1), magnetic coupling mechanism (2), fan main part (4) and radiator (3), output shaft (11) of motor (1) pass through magnetic coupling mechanism (2) with input shaft (43) of fan main part (4) are connected, radiator (3) set up in magnetic coupling mechanism (2) with between fan main part (4), input shaft (43) pass radiator (3) set up and pass through radiator (3) heat dissipation.

2. A magnetic coupling fan set according to claim 1, wherein the heat sink (3) comprises a first connecting portion (31), a second connecting portion (33) and a heat dissipating portion (32), the heat dissipating portion (32) is of a cylindrical structure with hollow inside, the first connecting portion (31) and the second connecting portion (33) are respectively connected to two ends of the heat dissipating portion (32), the first connecting portion (31) is connected with the magnetic coupling connecting mechanism (2), the second connecting portion (33) is connected with the fan main body (4), an input shaft (43) of the fan main body (4) is arranged through an inner cavity of the heat dissipating portion (32), bearings (44) are respectively arranged at two ends of the inner cavity of the heat dissipating portion (32), and the input shaft (43) is arranged through the bearings (44).

3. A magnetic coupling fan set according to claim 2, wherein a plurality of heat radiating fins (321) are provided along an outer periphery of the heat radiating portion (32), the plurality of heat radiating fins (321) are arranged along a longitudinal direction of the heat radiating portion (32), and the heat radiating fins (321) are provided perpendicularly to an axis of the heat radiating portion (32).

4. The magnetic coupling fan set according to claim 1, wherein the magnetic coupling connection mechanism (2) comprises a magnetic coupling shell (21) and an outer magnetic cylinder (22), an inner magnetic cylinder (24) and a spacer sleeve (23) which are arranged in the magnetic coupling shell (21), the output shaft (11) is connected with the outer magnetic cylinder (22), the input shaft (43) extends into the magnetic coupling shell (21) and is connected with the inner magnetic cylinder (24), the inner magnetic cylinder (24) is arranged on the inner side of the outer magnetic cylinder (22), the spacer sleeve (23) is arranged between the inner magnetic cylinder (24) and the outer magnetic cylinder (22), the inner magnetic cylinder (24) and the spacer sleeve (23) are coaxially arranged, and the spacer sleeve (23) is of a cylindrical structure with one end open and the opening end of the spacer sleeve is in sealing connection with the radiator (3).

5. A magnetic coupling fan assembly according to claim 4, characterized in that a connecting edge (231) is arranged around the opening end of the spacer sleeve (23), the connecting edge (231) is perpendicular to the axis of the spacer sleeve (23), a sealing ring groove (311) is arranged on the end face of the radiator (3), a sealing ring (232) is arranged in the sealing ring groove (311), and the connecting edge (231) is in sealing connection with the end face of the radiator (3) by the sealing ring (232).

6. A magnetic coupling fan set according to claim 4, characterized in that an adapter housing (8) is arranged on the outer side of the output shaft (11), the output shaft (11) is coaxially connected with a driving shaft (13) through a coupling (12), an end plate (81) is connected to one end, close to the motor (1), of the magnetic coupling housing (21), the driving shaft (13) penetrates through a bearing seat (14) to extend into the magnetic coupling housing (21) to be connected with the outer magnetic cylinder (22), the bearing seat (14) is connected to the center of the end plate (81), and the adapter housing (8) is connected between the end plate (81) and the motor (1).

7. A magnetically coupled fan assembly according to claim 6, wherein the adapter housing (8) comprises a plurality of connecting rods (82), the plurality of connecting rods (82) being uniformly arranged centering on the output shaft (11), one end of the connecting rod (82) being connected to the end plate (81) and the other end being connected to the motor (1).

8. A magnetically coupled fan assembly according to claim 1, characterized in that the fan body (4) comprises a fan housing (41) and an impeller (42), the impeller (42) being arranged in the fan housing (41), the input shaft (43) extending into the fan housing (41) and being connected to the impeller (42).

9. The magnetic coupling fan set according to claim 1, further comprising a frame, wherein the frame comprises a supporting seat (6), a motor mounting seat (5) and a mounting base (7), the top end of the motor mounting seat (5) is connected with the bottom end of the motor (1) and the motor mounting seat (5) is vertically connected with one end of the mounting base (7), and the other end of the mounting base (7) is connected with the fan main body (4) through the supporting seat (6).