CN218542686U - Sealing device for high-speed magnetic suspension motor and impeller - Google Patents
Sealing device for high-speed magnetic suspension motor and impeller Download PDFInfo
- Publication number
- CN218542686U CN218542686U CN202222828274.2U CN202222828274U CN218542686U CN 218542686 U CN218542686 U CN 218542686U CN 202222828274 U CN202222828274 U CN 202222828274U CN 218542686 U CN218542686 U CN 218542686U
- Authority
- CN
- China
- Prior art keywords
- magnetic suspension
- suspension motor
- impeller
- adapter plate
- hole section
- 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 sealing device of high-speed magnetic suspension motor and impeller, including the magnetic suspension motor, one side of magnetic suspension motor is provided with the spiral case, installs the impeller in the spiral case, and the power take off end fixed connection of impeller and magnetic suspension motor, is provided with the switching dish between magnetic suspension motor and the spiral case, and switching dish fixed mounting is on the magnetic suspension motor, and spiral case and switching dish fixed connection are provided with seal assembly between the back of impeller and the switching dish, the utility model has the advantages of simple overall structure, convenient to use, can install the spiral case through the switching dish, convenient equipment and installation to can seal the back of impeller, reduce air flow and loss of pressure.
Description
Technical Field
The utility model belongs to the technical field of magnetic suspension power equipment, specific theory relates to a sealing device of high-speed magnetic suspension motor and impeller.
Background
Along with the development of magnetic suspension technique, the magnetic suspension air-blower has appeared, and the magnetic suspension air-blower utilizes the magnetic bearing to act on the rotor at the electromagnetic force that the circular telegram produced to suspend the rotor among the magnetic bearing, compare traditional antifriction bearing, because there is not mechanical contact between magnetic bearing and the rotor, make the rotor can obtain higher rotational speed, do benefit to the work efficiency who promotes the impeller of being connected with the rotor.
The existing high-speed magnetic suspension blower structurally comprises a magnetic suspension motor and a volute, wherein an impeller is arranged in the volute and is in transmission connection with a rotor shaft of the magnetic suspension motor, and the volute is directly and fixedly installed on the magnetic suspension motor.
In addition, in the prior art, when the back surface of the impeller is not provided with a sealing structure, high-pressure gas in the volute flows out through a gap between the impeller and the adapter plate, so that the loss of airflow and pressure is caused, and the using effect is reduced.
And current spiral case all is the direct assembly on the motor, and then causes the motor of a signal can only be applicable to the spiral case of a model, causes the fan kind to be various, carries out the categorised management storage to different types of motors, has increased the management degree of difficulty in warehouse, reduces the space utilization in warehouse to the assembly degree of difficulty is high, reduces the result of use, causes the promotion of cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved main technical problem of the utility model is to provide an overall structure is simple, and service function is convenient, can install the spiral case through the switching dish, convenient equipment and installation to can seal the back of impeller, reduce airflow and loss of pressure's high-speed magnetic suspension motor and the sealing device of impeller.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a sealing device of high-speed magnetic levitation motor and impeller, includes the magnetic levitation motor, and one side of magnetic levitation motor is provided with the spiral case, installs the impeller in the spiral case, and the power take off end fixed connection of impeller and magnetic levitation motor, is provided with the switching dish between magnetic levitation motor and the spiral case, and switching dish fixed mounting is on the magnetic levitation motor, spiral case and switching dish fixed connection, are provided with seal assembly between the back of impeller and the switching dish.
The following is the utility model discloses to above-mentioned technical scheme's further optimization:
the sealing assembly comprises a plurality of annular grooves formed in the back face of the impeller, and the annular grooves and the impeller are arranged coaxially.
Further optimization: the positions, corresponding to the plurality of annular grooves, on the switching disc are respectively provided with an annular bulge, the annular bulges are integrally connected with the switching disc, and the annular bulges are matched with the annular grooves.
Further optimization: the switching dish includes the switching dish main part, and one side an organic whole that the switching dish main part is close to the spiral case is connected with the connector, has seted up the centre bore in flange main part and the connector.
Further optimization: the magnetic suspension motor is characterized in that a connecting seat is integrally connected to a position, close to the switching disc, of the magnetic suspension motor, the mounting end of the volute is mounted on the connecting body, and the volute, the switching disc and the connecting seat are fixedly connected through bolt pairs.
Further optimization: the central hole comprises a first straight hole section, a conical hole section, a second straight hole section and a third straight hole section which are sequentially distributed from one side close to the magnetic suspension motor to the other side; the first straight hole section, the conical hole section, the second straight hole section and the third straight hole section are coaxially arranged and are communicated with each other.
Further optimization: the inner surface shape of the conical hole section is matched with the end surface shape of the magnetic suspension motor, and a heat dissipation cavity is arranged between the conical hole section and the end surface of the magnetic suspension motor.
Further optimization: the position department that is close to the second straight hole section on the switching dish is provided with shaft seal assembly, and shaft seal assembly is including installing the seal at second straight hole section middle part, and sealed hole has been seted up at the middle part of seal.
Further optimization: a plurality of annular sealing ring grooves are formed in the inner surface of the sealing hole; the diameter of the inner surface of the sealing hole is matched with the diameter of the outer surface of the rotor shaft of the magnetic suspension motor.
And (4) further optimizing: the adapter plate is provided with a heat dissipation channel, the heat dissipation channel comprises a plurality of heat dissipation holes formed in the outer circumferential surface of the adapter plate body, and the heat dissipation holes penetrate through the inner surface of the conical hole section and are communicated with the heat dissipation cavity.
The above technical scheme is adopted in the utility model, when using, at first assemble the switching dish to the magnetic levitation motor earlier, on the impeller assembles the magnetic levitation motor, the spiral case assembles the switching dish, adopt the bolt pair to carry out fixed connection between spiral case, switching dish and the magnetic levitation motor, the diffuser assembles the spiral case, and whole motor assembly finishes.
When the magnetic suspension motor drives the impeller to rotate, heat in the heat dissipation cavity can be discharged through the heat dissipation holes, and then the magnetic suspension motor is protected, and the using effect is improved.
The adapter plate is a series of components, different volutes can be matched by changing the adapter plate in the assembling process, and the use is convenient.
This sealing device of high-speed magnetic suspension motor and impeller except being used for the magnetic suspension air-blower, can also be used for magnetic suspension power fluid machinery such as magnetic suspension vacuum pump, magnetic suspension air compressor machine, the above technical scheme is conceived ingeniously, and is rational in infrastructure, is provided with seal assembly between the back of impeller and the switching dish, can make the air current when this seal assembly through this seal assembly, produces the vortex effect, makes air current outflow speed slow down, reduces the flow and the loss of pressure of air current.
The switching disc is arranged between the magnetic suspension motor and the volute, and the connection is carried out through the switching disc, so that the assembly and the installation are convenient, and the assembly efficiency is improved; the outer circumferential surface of the adapter plate is provided with a plurality of heat dissipation holes, heat in the heat dissipation cavity can be discharged through the heat dissipation holes, the magnetic suspension motor is protected, and the using effect is improved; and the whole adapter plate is integrally processed without welding procedures, so that the structural strength is improved.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a split view of a high-speed magnetic levitation blower in an embodiment of the present invention;
fig. 2 is an assembly view of the high-speed magnetic levitation blower according to the embodiment of the present invention;
FIG. 3 is a perspective view of the impeller of the present invention;
fig. 4 is a cross-sectional view of the transfer plate of the present invention;
fig. 5 is a partially enlarged view of a portion a in fig. 2.
In the figure: 1-a magnetic suspension motor; 11-a connecting seat; 2-a switching disk; 21-a patch panel body; 22-a linker; 23-heat dissipation holes; 24-an annular projection; 25-a central bore; 251-a first straight bore section; 252-a conical bore section; 253-a second straight bore section; 254-a third straight bore section; 26-connecting bolts; 3-an impeller; 31-an annular groove; 4-a volute; 5-a diffuser; 6-heat dissipation cavity; 7-sealing body; 71-seal the hole.
Detailed Description
As shown in fig. 1-5, a sealing device for a high-speed magnetic suspension motor and an impeller comprises a magnetic suspension motor 1, a volute 4 is arranged on one side of the magnetic suspension motor 1, an impeller 3 is installed in the volute 4, the impeller 3 is fixedly connected with a power output end of the magnetic suspension motor 1, an adapter plate 2 is arranged between the magnetic suspension motor 1 and the volute 4, the adapter plate 2 is fixedly installed on the magnetic suspension motor 1, the volute 4 is fixedly connected with the adapter plate 2, and a sealing assembly is arranged between the back of the impeller 3 and the adapter plate 2.
Design like this, when using, can be with switching dish 2 fixed mounting on magnetic suspension motor 1, then with 4 fixed mounting of spiral case on switching dish 2, and then through switching dish 2 can be convenient with 4 fixed mounting of spiral case on magnetic suspension motor 1, convenient equipment and installation.
And be provided with seal assembly between impeller 3's the back and adapter 2, can make the air current through this seal assembly when, produce the vortex effect, make air current outflow speed slow, reduce air current's flow and pressure loss.
The adapter plate 2 comprises an adapter plate main body 21, one side, close to the volute 4, of the adapter plate main body 21 is integrally connected with a connecting body 22, and a center hole 25 is formed in the adapter plate main body 21 and the connecting body 22.
A plurality of first bolt holes are formed in one side face, close to the magnetic suspension motor 1, of the adapter plate main body 21, and the first bolt holes are distributed in an annular mode at intervals along a bearing of the adapter plate main body 21.
The magnetic suspension motor 1 is integrally connected with a connecting seat 11 at a position close to the switching disc 2, and second bolt holes are respectively formed in the connecting seat 11 at positions corresponding to the first bolt holes.
And third bolt holes are respectively formed in the positions, corresponding to the first bolt holes, of the volute 4.
The second, first and third bolt holes are internally threaded with connecting bolts 26.
The volute 4, the adapter plate 2 and the connecting base 11 on the magnetic suspension motor 1 are fixedly connected through a connecting bolt 26.
The shape of the whole outer surface of the connecting body 22 is cylindrical, and the shape of the outer surface of the connecting body 22 is matched with the shape of the inner surface of the mounting end of the volute 4.
The mounting end of the volute 4 is mounted on the connecting body 22, and the connecting body 22 is in sealing connection with the mounting end of the volute 4.
The central hole 25 comprises a first straight hole section 251, a conical hole section 252, a second straight hole section 253 and a third straight hole section 254 which are arranged from one side close to the magnetic levitation motor 1 to the other side in sequence.
The first straight hole section 521, the conical hole section 252, the second straight hole section 253 and the third straight hole section 254 are coaxially arranged and are communicated with each other.
The diameter of the inner surface of the first straight-hole section 521 matches the diameter of the outer surface of the magnetic levitation motor 1.
The adapter plate 2 is sleeved on the magnetic suspension motor 1 through the first straight hole section 521, and axial positioning is realized between the adapter plate 2 and the magnetic suspension motor 1 through shaft shoulder matching.
The shape of the inner surface of the conical hole section 252 is matched with the shape of the end face of the magnetic suspension motor 1, and a heat dissipation cavity 6 is arranged between the conical hole section 252 and the end face of the magnetic suspension motor 1.
The shape of the inner surface of the second straight hole section 253 matches the shape of the outer surface of the rotor shaft of the magnetic levitation motor 1, and the rotor shaft of the magnetic levitation motor 1 passes through the second straight hole section 253 and extends into the volute 4.
The shape of the inner surface of the third straight hole section 254 matches the shape of the outer surface of the large end of the impeller 3.
The sealing assembly comprises a plurality of annular grooves 31 formed in the back face of the impeller 3, and the annular grooves 31 and the impeller 3 are coaxially arranged.
The adapter plate 2 is provided with annular protrusions 24 at positions corresponding to the plurality of annular grooves 31, and the annular protrusions 24 are integrally connected with the adapter plate 2.
The annular projection 24 fits into the annular groove 31.
The design is that the adapter plate 2 is arranged on the shell of the magnetic suspension motor 1, the impeller 3 is fixedly arranged on the rotor shaft of the magnetic suspension motor 1, and the annular bulge 24 is matched with the annular groove 31.
And then magnetic suspension motor 1 drive impeller 3 rotates, when the air current was located through annular bulge 24 and annular groove 31, produced the vortex effect, made the air current outflow speed slow down, reduced the flow and the loss of pressure of air current, and then improved the result of use.
The adapter plate 2 is integrally machined, a welding procedure is omitted, and structural strength is improved.
A shaft sealing assembly is arranged at a position, close to the second straight hole section 253, on the adapter plate 2, the shaft sealing assembly comprises a sealing body 7 installed in the middle of the second straight hole section 253, and the sealing body 7 is fixedly connected with the adapter plate 2 through a bolt pair.
The middle part of the sealing body 7 is provided with a sealing hole 71, and the diameter of the inner surface of the sealing hole 71 is matched with the diameter of the outer surface of a rotor shaft of the magnetic suspension motor 1.
The rotor shaft of the magnetic suspension motor 1 penetrates through the sealing hole 71 and extends into the volute 4, and the sealing body 7 can seal the space between the rotor of the magnetic suspension motor 1 and the adapter plate 2, so that the sealing effect is improved.
A plurality of annular sealing ring grooves are formed in the inner surface of the sealing hole 71.
The adapter plate 2 is provided with a heat dissipation channel, the heat dissipation channel comprises a plurality of heat dissipation holes 23 formed in the outer circumferential surface of the adapter plate main body 21, and the heat dissipation holes 23 are annularly arranged along the outer circumferential surface of the adapter plate main body 21 at intervals.
The heat dissipation hole 23 penetrates through the inner surface of the conical hole section 252 and is communicated with the conical hole section 252.
By the design, after the adapter plate 2 is installed on the magnetic suspension motor 1, the heat dissipation holes 23 are communicated with the heat dissipation cavity 6.
The heat in the heat dissipation cavity 6 can be discharged through the heat dissipation holes 23, so that the magnetic suspension motor 1 is protected, and the using effect is improved.
And a diffuser 5 is fixedly installed on one side of the volute 4 far away from the magnetic suspension motor 1, and a central hole of the diffuser 5 is communicated with the volute 4.
When the magnetic suspension motor is used, firstly, the adapter plate 2 is assembled on the magnetic suspension motor 1, the impeller 3 is assembled on the magnetic suspension motor 1, the volute 4 is assembled on the adapter plate 2, the volute 4, the adapter plate 2 and the magnetic suspension motor 1 are fixedly connected through the bolt pair, the diffuser 5 is assembled on the volute 4, and the whole motor is assembled.
When the magnetic suspension motor 1 drives the impeller 3 to rotate, heat in the heat dissipation cavity 6 can be discharged through the heat dissipation holes 23, so that the magnetic suspension motor 1 is protected, and the using effect is improved.
And the magnetic suspension motor 1 drives the impeller 3 to rotate, when the air current passes through the annular bulge 24 and the annular groove 31, an eddy effect is generated, the outflow speed of the air current is slowed, the flow and the pressure loss of the air current are reduced, and the using effect is further improved.
In this embodiment, the adapter plate 2 is a series of components, and different volutes 4 can be matched by changing the adapter plate 2 in the assembling process, so that the use is convenient.
For those skilled in the art, based on the teachings of the present invention, changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims (10)
1. The utility model provides a sealing device of high-speed magnetic suspension motor and impeller, includes magnetic suspension motor (1), and one side of magnetic suspension motor (1) is provided with spiral case (4), installs impeller (3) in spiral case (4), and the power take off end fixed connection of impeller (3) and magnetic suspension motor (1), its characterized in that: an adapter plate (2) is arranged between the magnetic suspension motor (1) and the volute (4), the adapter plate (2) is fixedly installed on the magnetic suspension motor (1), the volute (4) is fixedly connected with the adapter plate (2), and a sealing assembly is arranged between the back of the impeller (3) and the adapter plate (2).
2. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 1, wherein: the sealing assembly comprises a plurality of annular grooves (31) formed in the back face of the impeller (3), and the annular grooves (31) and the impeller (3) are coaxially arranged.
3. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 2, wherein: the adapter plate (2) is provided with annular protrusions (24) at positions corresponding to the plurality of annular grooves (31), the annular protrusions (24) are integrally connected with the adapter plate (2), and the annular protrusions (24) are matched with the annular grooves (31).
4. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 3, wherein: the switching dish (2) is including switching dish main part (21), and one side an organic whole that switching dish main part (21) is close to spiral case (4) is connected with connector (22), has seted up centre bore (25) in flange main part (21) and connector (22).
5. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 4, wherein: the magnetic suspension motor is characterized in that a connecting seat (11) is integrally connected to a position, close to the adapter plate (2), on the magnetic suspension motor (1), the mounting end of the volute (4) is mounted on the connecting body (22), and the volute (4), the adapter plate (2) and the connecting seat (11) are fixedly connected through bolt pairs.
6. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 5, wherein: the central hole (25) comprises a first straight hole section (251), a conical hole section (252), a second straight hole section (253) and a third straight hole section (254) which are sequentially distributed from one side close to the magnetic suspension motor (1) to the other side; the first straight hole section (251), the conical hole section (252), the second straight hole section (253) and the third straight hole section (254) are coaxially arranged and are communicated with each other.
7. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 6, wherein: the inner surface shape of the conical hole section (252) is matched with the end surface shape of the magnetic suspension motor (1), and a heat dissipation cavity (6) is arranged between the conical hole section (252) and the end surface of the magnetic suspension motor (1).
8. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 7, wherein: a shaft sealing assembly is arranged at a position, close to the second straight hole section (253), on the adapter plate (2), and comprises a sealing body (7) arranged in the middle of the second straight hole section (253), and a sealing hole (71) is formed in the middle of the sealing body (7).
9. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 8, wherein: a plurality of annular sealing ring grooves are formed in the inner surface of the sealing hole (71); the diameter of the inner surface of the sealing hole (71) is matched with the diameter of the outer surface of a rotor shaft of the magnetic suspension motor (1).
10. The sealing device for the high-speed magnetic suspension motor and the impeller as claimed in claim 9, wherein: the adapter plate (2) is provided with a heat dissipation channel, the heat dissipation channel comprises a plurality of heat dissipation holes (23) formed in the outer circumferential surface of the adapter plate main body (21), and the heat dissipation holes (23) penetrate through the inner surface of the conical hole section (252) and are communicated with the heat dissipation cavity (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222828274.2U CN218542686U (en) | 2022-10-26 | 2022-10-26 | Sealing device for high-speed magnetic suspension motor and impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222828274.2U CN218542686U (en) | 2022-10-26 | 2022-10-26 | Sealing device for high-speed magnetic suspension motor and impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218542686U true CN218542686U (en) | 2023-02-28 |
Family
ID=85282128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222828274.2U Active CN218542686U (en) | 2022-10-26 | 2022-10-26 | Sealing device for high-speed magnetic suspension motor and impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218542686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117588441A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Impeller sealing structure of magnetic suspension air compressor |
-
2022
- 2022-10-26 CN CN202222828274.2U patent/CN218542686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117588441A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Impeller sealing structure of magnetic suspension air compressor |
| CN117588441B (en) * | 2024-01-19 | 2024-04-19 | 山东天瑞重工有限公司 | Impeller sealing structure of magnetic suspension air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218542686U (en) | Sealing device for high-speed magnetic suspension motor and impeller | |
| CN115788967B (en) | Heat dissipation channel of magnetic suspension air-blower | |
| CN110829720B (en) | Medium-speed permanent magnet wind driven generator structure | |
| CN109751246B (en) | Full-through-flow pump | |
| CN217814029U (en) | Exhaust two-stage gas suspension centrifugal electric direct-drive air compressor capable of recycling | |
| CN218526189U (en) | Connecting mechanism of high-speed magnetic suspension motor | |
| CN116104775A (en) | Magnetic suspension vacuum pump with axial force balance system | |
| CN216872972U (en) | Magnetic suspension vapor compressor | |
| CN113294359B (en) | High-performance single-side double-impeller magnetic levitation high-speed direct-drive turbine compressor and working mechanism | |
| CN215830756U (en) | Self-suction cooling type air-floating direct-drive centrifugal blower | |
| CN215830748U (en) | High-performance single-side double-impeller air-floatation high-speed direct-drive turbo compressor | |
| CN215860885U (en) | Magnetic suspension air blower with single-stage double-suction and double stator and rotor | |
| CN210889482U (en) | Connecting structure for circumferential stopping of stator blades | |
| CN209761761U (en) | Hydraulic drive's mining axial-flow fan | |
| CN220435060U (en) | Single-stage air-float blower | |
| CN113819077A (en) | Magnetic suspension air blower with single-stage double-suction and double stator and rotor | |
| CN218760614U (en) | Self-cooling exhaust device of two-stage high-speed magnetic suspension motor | |
| CN215830749U (en) | High-performance unilateral double-impeller magnetic levitation high-speed direct-drive turbine compressor structure | |
| CN219394562U (en) | Efficient ceiling fan motor dispels heat | |
| CN220687617U (en) | Centrifugal air-float blower | |
| CN113250981B (en) | High-performance single-side double-impeller air-floatation high-speed direct-drive turbine compressor and working method | |
| CN116877465A (en) | Single-stage air-float blower | |
| CN216617974U (en) | Bearing seat structure for air cycle machine and air cycle machine with same | |
| CN216447130U (en) | Double-turbine high-pressure centrifugal fan | |
| CN214944454U (en) | Thrust structure of circulator and circulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |