CN107575475B - Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing - Google Patents
Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing Download PDFInfo
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- CN107575475B CN107575475B CN201710985827.6A CN201710985827A CN107575475B CN 107575475 B CN107575475 B CN 107575475B CN 201710985827 A CN201710985827 A CN 201710985827A CN 107575475 B CN107575475 B CN 107575475B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
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- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a magnetic bearing stator assembly sealing method, a sealing tool and a magnetic bearing, wherein the magnetic bearing stator assembly sealing method comprises the following steps: a. after the stator assembly is assembled, the stator assembly is installed in a glue sealing tool, and a glue injection space is formed between the outer circle surface of the stator assembly and the glue sealing tool; b. c, after the glue injection is completed, heating a glue sealing tool provided with the stator assembly, so that the glue in the glue injection space is solidified and coated on the outer circle surface of the stator assembly. According to the invention, the solid glue can be coated on the outer circle surface of the stator assembly, so that the magnetic steel can be more firmly fixed, the phenomenon that the magnetic steel is separated or displaced in the manufacturing process is avoided, and the assembly precision and the manufacturing efficiency of the magnetic suspension bearing are ensured.
Description
Technical Field
The invention relates to the technical field of magnetic bearing processing, in particular to a magnetic bearing stator assembly glue sealing method, a glue sealing tool and a magnetic bearing.
Background
As shown in fig. 1 to 4, the conventional radial magnetic suspension bearing stator assembly 100 includes a magnetic steel 1, a fixing frame assembly 200, a radial ring 4, an iron core 5 and a coil 6, and the fixing frame assembly includes a magnetic steel fixing frame 2 and a baffle 3. During assembly, the coil 6 is wound on the iron core 5, the radial ring 4 is heated to expand, the iron core 5 around which the coil 6 is wound is plugged into the radial ring 4, and after the iron core is cooled, paint is soaked and air-dried. At this time, the magnetic steel fixing frame 2 is fastened to the baffle plate 3 through screws, and then eight pieces of magnetic steel 1 are adsorbed to the baffle plate 3 through magnetic force according to the design direction and are positioned through the magnetic steel fixing frame 2. Then, the magnetic steel and the fixing frame component are slowly attached to the radial ring 4 which is soaked in paint and air-dried while the coaxiality is guaranteed through a special tool, and the assembly is completed. Because in this process, magnet steel 1 only accomplishes location, fastening and connection through magnetic force, and in the assembly process, because magnet steel 1 magnetism is stronger, can not avoid having vibrations and impact, so often appear magnet steel 1 deviate from or take place the phenomenon of displacement in manufacturing process, and once appear similar condition, because the gap that remains is too little, and receive the influence of other magnet steel 1 magnetic fields, the magnet steel 1 that will deviate from or take place the displacement is put in place to seriously influence radial magnetic suspension bearing's assembly precision and manufacturing efficiency. Moreover, mechanical connection is not suitable in the axial direction, otherwise the magnetic steel may be crushed or new positioning and assembly problems may occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a magnetic bearing stator assembly sealing method, a sealing tool and a magnetic bearing, which can firmly fix magnetic steel and avoid the phenomenon that the magnetic steel is separated or displaced in the manufacturing process.
The technical scheme of the invention is as follows: the method for sealing the magnetic suspension bearing stator assembly comprises the following steps:
a. after the stator assembly is assembled, the stator assembly is installed in a glue sealing tool, and a glue injection space is formed between the outer circle surface of the stator assembly and the glue sealing tool;
b. after the stator assembly is installed, injecting glue solution into the glue injection space;
c. and after the glue injection is finished, heating the glue sealing tool provided with the stator assembly, so that the glue solution in the glue injection space is solidified and coated on the outer circle surface of the stator assembly.
In step b, the glue solution fills the gap inside the stator assembly, and in step c, the glue solution in the gap inside the stator assembly is solidified.
In the step a, the step of installing the stator assembly into the sealing tool comprises the following steps:
a1, placing the stator assembly in a radial ring of a tooling of the sealing tooling;
a2, penetrating a tool shaft of the sealing tool into a tool radial ring and a stator assembly, enabling a first section of the tool shaft to extend out of the tool radial ring, enabling a second section of the tool shaft to be matched with an inner circle of the stator assembly, enabling a third section of the tool shaft to be in contact with a baffle plate of the stator assembly, and enabling an outer circle of the stator assembly to be in clearance fit with the inner circle of the tool radial ring;
a3, fixing a tool cover plate of the sealing tool at one end of a radial tool ring, pressing and attaching the tool cover plate to a coil of a stator assembly, pressing and attaching an annular bearing part at the other end of the radial tool ring to a baffle plate of the stator assembly, so that a glue injection space is formed among the inner circle surface of the radial tool ring, the outer circle surface of the stator assembly and the inner surface of the tool cover plate, a first section of the tool shaft penetrates through a first through hole and a second through hole in the middle of the tool cover plate, and a second section of the tool shaft is matched with the first through hole in the tool cover plate.
In the step b, the glue solution is injected into the glue injection space through the glue injection hole on the tooling cover plate, and air in the glue injection space is discharged through the vent hole on the tooling cover plate.
The glue solution is injected into the glue injection space in a pressurizing mode.
And c, before the step a, brushing a release agent on the inner circular surface of the tool radial ring and the inner surface of the tool cover plate.
In step c, the glue solution is heated to the thermosetting temperature of the glue solution so as to cure the glue solution.
In the step c, the glue sealing tool is heated in a heating device, heat preservation is carried out after heating, and the glue sealing tool is taken out from the heating device for cooling after heat preservation.
The heating device is an oven.
The glue solution adopts thermosetting plastic.
The thermosetting plastic is epoxy resin.
The invention also provides a glue sealing tool for the glue sealing method of the magnetic suspension bearing stator assembly, which comprises a tool radial ring, a tool cover plate and a tool shaft, wherein the tool cover plate is fixed at one end of the tool radial ring, an annular bearing part is arranged at the other end of the tool radial ring, the stator assembly is placed in the tool radial ring, the annular bearing part is tightly pressed and adhered with a baffle plate of the stator assembly, the tool cover plate is tightly pressed and adhered with a coil of the stator assembly, the tool shaft is arranged in the tool radial ring, the stator assembly and the tool cover plate in a penetrating way, the tool shaft is abutted with the tool cover plate, and a glue injecting space is formed among the inner circle surface of the tool radial ring, the outer circle surface of the stator assembly and the inner surface of the tool cover plate.
And the tooling cover plate is provided with a glue injection hole and an exhaust hole which are communicated with the glue injection space.
The tool shaft comprises a first section, a second section and a third section which are sequentially connected, the outer diameters of the first section, the second section and the third section are sequentially increased, a first through hole and a second through hole which are coaxial and communicated are formed in the middle of a tool cover plate, the diameter of the first through hole is larger than that of the second through hole, the first through hole is close to a stator assembly, the first section of the tool shaft penetrates through the first through hole and the second through hole in the tool cover plate, the second section of the tool shaft is matched with the inner circle and the first through hole of the stator assembly, and the third section of the tool shaft is in contact with a baffle plate of the stator assembly.
And the inner circular surface of the tool radial ring and the inner surface of the tool cover plate are brushed with release agents.
The tool cover plate is fixed on the tool radial ring through bolts.
And a space is reserved between the first section of the tool shaft and the hole wall of the second through hole.
The second section of the tool shaft is in clearance fit with the inner circle of the stator assembly.
The outer circle of the stator assembly is in clearance fit with the inner circle of the tool radial ring.
The invention also provides a magnetic suspension bearing, which comprises a stator assembly and is characterized in that the stator assembly is assembled and then processed by the sealing method.
According to the invention, the stator assembly is assembled and then placed in the glue sealing tool, glue solution is injected into the glue injection space, and the glue sealing tool is heated to enable the glue solution to be solidified and coated on the outer circle surface of the stator assembly, so that a layer of solid glue can be coated on the outer circle surface of the stator assembly, the magnetic steel can be fixed more firmly, the phenomenon that the magnetic steel is separated or displaced in the manufacturing process is avoided, and the assembly precision and the manufacturing efficiency of the magnetic suspension bearing are ensured. In addition, the solid glue is coated on the outer circle surface of the stator assembly through the glue sealing method, and the solid glue is filled in the gap inside the stator assembly, so that the manufacturing stability of the magnetic suspension bearing product is improved, the traditional paint dipping process is replaced, the effect of protecting the stator assembly can be achieved, the corrosion resistance of the product is improved, and the service life of the stator assembly is prolonged.
Drawings
Fig. 1 is a block diagram of a prior art mounting bracket assembly for a magnetic bearing stator assembly.
Fig. 2 is a cross-sectional view taken along the direction A-A in fig. 1.
Fig. 3 is a block diagram of a prior art magnetic bearing stator assembly.
Fig. 4 is a sectional view taken along the direction B-B in fig. 3.
Fig. 5 is a schematic diagram of a magnetic suspension bearing stator assembly installed in a sealing tool according to the present invention.
Fig. 6 is a cross-sectional view taken along the direction C-C in fig. 5.
FIG. 7 is a schematic illustration of a magnetic bearing stator assembly of the present invention sandwiched between an annular carrier and a tooling cover plate.
Detailed Description
Although the magnetic steel can be adsorbed on the retainer by magnetic force in the prior art, the magnetic steel is frequently fallen off or vibrated to fly because of the inevitable impact and vibration in the process of mounting the stator assembly on the application part, and the magnetic steel sheet is required to be replaced, so that the magnetic steel sheet is very difficult to accurately replace due to the influence of the magnetic force of other magnetic steel remained in the stator assembly, and the production efficiency and the manufacturing precision are seriously reduced. And if the mechanical limiting method is adopted, the complexity of the structure is increased, and new positioning and assembly problems occur.
Therefore, in order to better fix the magnetic steel, as shown in fig. 5 to 7, an embodiment of the present invention provides a method for sealing a stator assembly of a magnetic suspension bearing, which includes the following steps:
a. after the stator assembly is assembled, the stator assembly is installed in a glue sealing tool, and a glue injection space 10 is formed between the outer circle surface of the stator assembly and the glue sealing tool;
b. after the stator assembly is installed, injecting glue solution into the glue injection space 10;
c. and after the glue injection is finished, heating the glue sealing tool provided with the stator assembly, so that the glue solution is solidified and coated on the outer circle surface of the stator assembly. Through the steps, the outer circle surface of the stator assembly can be coated with the solid glue, so that the magnetic steel can be firmly fixed, the phenomenon that the magnetic steel is separated or displaced in the manufacturing process is avoided, and the assembly precision and the manufacturing efficiency of the magnetic suspension bearing are ensured.
In addition, in step b, the glue solution fills the gaps inside the stator assembly (the gaps inside the stator assembly include the gaps between the magnetic steel and the magnetic steel fixing frame, the baffle plate and the radial ring, the gaps between the iron core and the radial ring, and the gaps between the coils and the iron core, respectively), so that in step c, the glue solution in the gaps inside the stator assembly is solidified. Therefore, the solid glue is coated on the outer circle surface of the stator assembly, and the gap inside the stator assembly is filled with the solid glue, so that the manufacturing stability of the magnetic suspension bearing product is improved.
The above-mentioned sealing method is described in detail below:
in the step a, the step of installing the stator assembly into the sealing tool comprises the following steps:
a1, placing a stator assembly in a tool radial ring 7 of a sealing tool;
a2, penetrating the tooling shaft 9 of the glue sealing tooling into the tooling radial ring 7 and the stator assembly, enabling the first section 91 of the tooling shaft 9 to extend out of the tooling radial ring 7, enabling the second section 92 of the tooling shaft 9 to be matched with the inner circle of the stator assembly, enabling the third section 93 of the tooling shaft 9 to be in contact with the baffle 3 of the stator assembly, and enabling the outer circle of the stator assembly to be in clearance fit with the inner circle of the tooling radial ring 7;
a3, fix the frock apron 8 of gluing frock in the one end of frock radial ring 7, make frock apron 8 compress tightly laminating with the coil 6 of stator module and the annular carrier 71 of the other end of frock radial ring 7 compress tightly laminating with the baffle 3 of stator module, in order to form injecting glue space 10 between the interior round surface of frock radial ring 7, the excircle surface of stator module and frock apron 8 internal surface, pass the first section 91 of frock axle 9 and pass first through-hole 83 and the second through-hole 84 in the middle of frock apron 8 (refer to fig. 6 and 7), and the second section 92 of frock axle 9 cooperatees with the first through-hole 83 on the frock apron 8 (refer to fig. 6 and 7).
In step b, the glue solution is injected into the glue injection space 10 in a pressurized manner through the glue injection holes 81 on the tooling cover plate 8, and the air in the glue injection space 10 is discharged through the air discharge holes 82 on the tooling cover plate 8.
In step c, the glue solution is heated to the thermosetting temperature of the glue solution, so that the glue solution is cured. The sealing tool is heated in the heating device, heat is preserved after heating, the sealing tool is taken out from the heating device after heat preservation for cooling, the sealing process is completed, the stator assembly is taken out from the sealing tool after cooling, and the heating device is preferably an oven.
Before step a, a release agent needs to be brushed on the inner circular surface of the tooling radial ring 7 and the inner surface of the tooling cover plate 8.
In this embodiment, the glue solution is a thermosetting plastic, preferably an epoxy resin. The plastic has high thermal stability, good insulating property and high strength, and can completely replace a paint dipping process in the manufacturing process of the magnetic suspension bearing, thereby simplifying the production flow. In addition, most of paint used for paint dipping can chemically react with lubricating oil in a protection bearing (a protection mechanism which is necessary for a magnetic suspension system) to further corrode the protection bearing, and the chemical properties of thermosetting plastics such as epoxy resin and the like are extremely stable, so that the effect of improving the overall reliability of the magnetic suspension system can be achieved. In addition, the magnetic suspension bearing is likely to be applied to severe chemical environments, such as an air-conditioning compressor or a nuclear power cooling water pump, is immersed in liquid such as a refrigerant, a refrigerating oil and the like for a long time, and the iron core is protected by only one layer of thin paint in the prior art, so that electrochemical corrosion is easy to occur after a long time, and the stator assembly is entirely wrapped in epoxy resin with extremely stable chemical properties, so that the overall reliability of the magnetic suspension bearing is improved. In addition, the epoxy resin is a good metal adhesive, the magnetic steel after sealing can be well fixed, and the thermal conductivity of the epoxy resin is 100 times that of air, so that the magnetic suspension bearing is better in heat dissipation, the service performance of the magnetic suspension bearing is improved, and the epoxy resin is excellent in electrical insulation performance and corrosion resistance.
As shown in fig. 5 to 7, the embodiment of the invention further provides a sealing tool for the sealing method of the magnetic suspension bearing stator assembly, the sealing tool comprises a tool radial ring 7, a tool cover plate 8 and a tool shaft 9, the tool cover plate 8 is fixed at one end of the tool radial ring 7, and an annular bearing part 71 is arranged at the other end of the tool radial ring 7. In the embodiment, a threaded through hole is formed in a tool cover plate 8, a threaded blind hole is formed in a tool radial ring 7, and the tool cover plate 8 is fixed on the tool radial ring 7 through bolts. The stator assembly is placed in the tooling radial ring 7 and the tooling cover plate 8 is in compression fit with the coil 6 of the stator assembly and the annular bearing portion 71 is in compression fit with the baffle 3 of the stator assembly (i.e., the stator assembly is sandwiched between the annular bearing portion and the tooling cover plate) to position the stator assembly in the axial direction. The tool shaft 9 is arranged in the tool radial ring 7, the stator assembly and the tool cover plate 8 in a penetrating mode, and the tool shaft 9 is abutted to the tool cover plate 8 so as to position the stator assembly in the radial direction, and therefore the stator assembly is positioned in the axial direction and the radial direction in the glue sealing tool, and additional installation and positioning procedures are not needed. An injecting glue space 10 is formed between the inner circle surface of the tooling radial ring 7, the outer circle surface of the stator assembly and the inner circle surface of the tooling cover plate 8, in this embodiment, the outer circle of the stator assembly and the inner circle of the tooling radial ring are in clearance fit, refer to fig. 7, and the coil 6 of the stator assembly is protruded out of the iron core 5 (i.e. the outer circle surface of the stator assembly is a step surface), so that a space is formed between the iron core 5 and the tooling cover plate 8, and the space between the space and the outer circle of the stator assembly and the inner circle of the tooling radial ring is communicated, thereby forming an injecting glue space.
When sealing glue, glue solution is injected into the glue injection space, the glue solution can fill up the gap between the glue injection space and the inside of the stator assembly, and after the glue injection is completed, a glue sealing tool provided with the stator assembly is heated, so that the glue solution in the glue injection space is solidified and coated on the outer circle surface of the stator assembly, and the glue solution in the gap inside the stator assembly is solidified, so that the glue injection can be carried out through the glue sealing tool to coat solid glue on the outer circle surface of the stator assembly, the magnetic steel can be firmly fixed, the phenomenon that the magnetic steel is separated or displaced in the manufacturing process is avoided, and the assembly precision and the manufacturing efficiency of the magnetic suspension bearing are ensured. Meanwhile, the solid glue is coated on the outer circle surface of the stator assembly, and the gap inside the stator assembly is filled with the solid glue, so that the manufacturing stability of the magnetic suspension bearing product is improved.
The tooling cover plate 8 is provided with a glue injection hole 81 and an exhaust hole 82 which are communicated with the glue injection space 10, when glue is injected, the glue solution is injected into the glue injection space 10 through the glue injection hole 81 in a pressurizing mode, and air in the glue injection space 10 is exhausted from the exhaust hole 82.
Referring to fig. 6, the tooling shaft 9 includes a first section 91, a second section 92 and a third section 93 which are sequentially connected, the outer diameters of the first section 91, the second section 92 and the third section 93 are sequentially increased, and the first section 91, the second section 92 and the third section 93 are integrally formed. The middle of the tooling cover plate 8 is provided with a first through hole 83 and a second through hole 84 which are coaxial and communicated, the diameter of the first through hole 83 is larger than that of the second through hole 84, and the first through hole 83 is close to the stator assembly. The first section 91 of the tooling shaft 9 passes through the first through hole 83 and the second through hole 84 on the tooling cover plate 8, the second section 92 of the tooling shaft 9 is matched with the inner circle of the stator assembly and the first through hole 83, the second section 92 of the tooling shaft 9 is matched with the first through hole 83 to limit the movement of the tooling shaft in the radial direction (after the tooling shaft is installed in the example of fig. 6, the tooling shaft can only withdraw leftwards and can not move rightwards, upwards or downwards any more), and the stator assembly is positioned in the radial direction. The third section 93 of the tooling shaft is in contact with the baffle 3 of the stator assembly. In this embodiment, a space is provided between the first section 91 of the tooling shaft and the hole wall of the second through hole 84, and the second section 92 of the tooling shaft is in clearance fit with the inner circle of the stator assembly and the first through hole 83.
The inner circular surface of the tooling radial ring 7 and the inner surface of the tooling cover plate 8 are brushed with release agent.
The embodiment of the invention also provides a magnetic suspension bearing which comprises a stator assembly, wherein the stator assembly is assembled and then processed by the glue sealing method.
According to the invention, after the stator assembly is assembled, the stator assembly is placed into the glue sealing tool for glue injection, and after the glue is solidified, the solid glue coated on the outer circle surface of the stator assembly is formed, so that the purposes of positioning and fixing the position of the magnetic steel are achieved. The solid glue is coated on the outer circle surface of the stator assembly, and the gap inside the stator assembly is filled with the solid glue, so that the manufacturing stability of the magnetic suspension bearing product is improved. In addition, the sealing method replaces the traditional paint dipping process, and can play a role in protecting the stator assembly, so that the corrosion resistance of the product is improved, and the service life of the stator assembly is prolonged.
The above embodiments are only for illustrating the idea of the present invention, and those skilled in the art can make various modifications and variations within the scope of the present invention.
Claims (19)
1. The magnetic suspension bearing stator assembly sealing method is characterized by comprising the following steps of:
a. after assembling the stator assembly (100), installing the stator assembly into a glue sealing tool, comprising:
a1, placing the stator assembly in a tool radial ring (7) of the sealing tool;
a2, penetrating a tool shaft (9) of the sealing tool into a tool radial ring and a stator assembly, enabling a first section (91) of the tool shaft to extend out of the tool radial ring, enabling a second section (92) of the tool shaft to be matched with an inner circle of the stator assembly, enabling a third section (93) of the tool shaft to be in contact with a baffle plate of the stator assembly, and enabling an outer circle of the stator assembly to be in clearance fit with the inner circle of the tool radial ring;
a3, fixing a tool cover plate (8) of the sealing tool at one end of a radial ring of the tool, enabling the tool cover plate to be tightly pressed and attached to a coil (6) of a stator assembly, enabling an annular bearing part (71) at the other end of the radial ring of the tool to be tightly pressed and attached to a baffle plate (3) of the stator assembly, so that a glue injection space (10) is formed among the inner circular surface of the radial ring of the tool, the outer circular surface of the stator assembly and the inner surface of the tool cover plate, enabling a first section of the tool shaft to pass through a first through hole (83) and a second through hole (84) in the middle of the tool cover plate, and enabling a second section of the tool shaft to be matched with the first through hole in the tool cover plate;
b. after the stator assembly is installed, injecting glue solution into the glue injection space;
c. and after the glue injection is finished, heating the glue sealing tool provided with the stator assembly, so that the glue solution in the glue injection space is solidified and coated on the outer circle surface of the stator assembly.
2. The method of claim 1, wherein in step b, the glue solution fills the gaps inside the stator assembly (100), and in step c, the glue solution in the gaps inside the stator assembly is cured.
3. The method for sealing a magnetic suspension bearing stator assembly according to claim 1, wherein in the step b, the glue solution is injected into the glue injection space (10) through a glue injection hole (81) on the tooling cover plate (8), and air in the glue injection space is discharged through an air exhaust hole (82) on the tooling cover plate.
4. A method of sealing a magnetic bearing stator assembly according to claim 3, wherein the glue is injected into the glue injection space (10) by means of pressurization.
5. The method of sealing a magnetic bearing stator assembly according to claim 1, wherein prior to step a, a release agent is brushed on the inner circular surface of the tooling radial ring (7) and the inner surface of the tooling cover plate (8).
6. The method of claim 1, wherein in step c, the glue solution is heated to a thermosetting temperature of the glue solution to cure the glue solution.
7. The method of claim 1, 2 or 6, wherein in step c, the sealing tool is heated in a heating device, the heating is performed, the heat is preserved, and the sealing tool is taken out from the heating device for cooling.
8. The method of claim 7, wherein the heating device is an oven.
9. The method of claim 1, wherein the glue solution is a thermosetting plastic.
10. The method of claim 9, wherein the thermosetting plastic is an epoxy.
11. A sealing tool for a magnetic suspension bearing stator assembly sealing method according to any one of claims 1 to 10, characterized by comprising a tool radial ring (7), a tool cover plate (8) and a tool shaft (9), wherein the tool cover plate is fixed at one end of the tool radial ring, an annular bearing part (71) is arranged at the other end of the tool radial ring, a stator assembly (100) is placed in the tool radial ring and is tightly pressed and attached to a baffle (3) of the stator assembly, the tool cover plate is tightly pressed and attached to a coil (6) of the stator assembly, the tool shaft is arranged in the tool radial ring, the stator assembly and the tool cover plate in a penetrating manner, the tool shaft is abutted to the tool cover plate, and a glue injection space (10) is formed among the inner circle surface of the tool radial ring, the outer circle surface of the stator assembly and the inner surface of the tool cover plate.
12. The glue sealing tool according to claim 11, wherein the tool cover plate (8) is provided with a glue injection hole (81) and a vent hole (82) which are communicated with the glue injection space (10).
13. The glue sealing tool according to claim 11 or 12, wherein the tool shaft (9) comprises a first section (91), a second section (92) and a third section (93) which are sequentially connected, the outer diameters of the first section, the second section and the third section are sequentially increased, a first through hole (83) and a second through hole (84) which are coaxial and communicated are arranged in the middle of the tool cover plate (8), the diameter of the first through hole is larger than that of the second through hole, the first through hole is close to the stator assembly, the first section of the tool shaft penetrates through the first through hole and the second through hole in the tool cover plate, the second section of the tool shaft is matched with the inner circle and the first through hole of the stator assembly, and the third section of the tool shaft is in contact with the baffle plate (3) of the stator assembly.
14. The glue sealing tool according to claim 11 or 12, characterized in that the inner circular surface of the tool radial ring (7) and the inner surface of the tool cover plate (8) are brushed with a release agent.
15. The glue sealing tool according to claim 11 or 12, characterized in that the tool cover plate (8) is fixed on the tool radial ring (7) by bolts.
16. The glue sealing tool according to claim 13, wherein a space is provided between the first section (91) of the tool shaft (9) and the wall of the second through hole (84).
17. The glue tool according to claim 11 or 12, wherein the second section (92) of the tool shaft (9) is in a clearance fit with the inner circle of the stator assembly.
18. The glue sealing tool according to claim 11 or 12, wherein the outer circle of the stator assembly is in clearance fit with the inner circle of the tool radial ring (7).
19. A magnetic bearing comprising a stator assembly, wherein the stator assembly is assembled and processed by the encapsulation method of any one of claims 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985827.6A CN107575475B (en) | 2017-10-20 | 2017-10-20 | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing |
| PCT/CN2018/110497 WO2019076305A1 (en) | 2017-10-20 | 2018-10-16 | Glue sealing method for magnetic levitation bearing stator assembly, glue sealing tool and magnetic levitation bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985827.6A CN107575475B (en) | 2017-10-20 | 2017-10-20 | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575475A CN107575475A (en) | 2018-01-12 |
| CN107575475B true CN107575475B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710985827.6A Active CN107575475B (en) | 2017-10-20 | 2017-10-20 | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing |
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| Country | Link |
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| CN (1) | CN107575475B (en) |
| WO (1) | WO2019076305A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575475B (en) * | 2017-10-20 | 2023-06-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing |
| CN108679083A (en) * | 2018-05-23 | 2018-10-19 | 山东锋钢机械设备有限公司 | A kind of permanent magnetism type magnetic suspension bearing arrangement |
| CN109058291B (en) * | 2018-08-06 | 2024-06-14 | 珠海格力电器股份有限公司 | Magnetic suspension bearing structure and magnetic suspension motor |
| CN110768484B (en) * | 2019-11-29 | 2024-12-03 | 广州大学 | A method and tooling for assembling rotor magnetic steel of an axial flux motor |
| CN111981041B (en) * | 2020-08-24 | 2021-11-23 | 淮阴工学院 | Magnetic suspension bearing radial protection structure and protection method thereof |
| CN114629315B (en) * | 2020-12-14 | 2025-04-04 | 广东美的智能科技有限公司 | Glue filling pads, motor stators, motors and electrical equipment |
| CN112648290B (en) * | 2020-12-28 | 2025-02-28 | 珠海格力电器股份有限公司 | Magnetic suspension bearing stator assembly and magnetic suspension motor having the same |
| CN113062923B (en) * | 2021-03-29 | 2025-02-14 | 珠海格力电器股份有限公司 | Radial bearings, bearing assemblies and magnetic suspension compressors |
| CN116811120B (en) * | 2023-08-28 | 2023-11-10 | 苏州保邦电气有限公司 | Sealing structure and sensor sealing method |
| CN118407975B (en) * | 2024-07-01 | 2024-09-13 | 珠海格力电器股份有限公司 | Magnetic suspension radial bearing, magnetic suspension motor and household appliance |
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| JP2001238375A (en) * | 2000-02-22 | 2001-08-31 | Moric Co Ltd | Permanent magnet field motor and permanent magnet fixing method |
| DE10324680A1 (en) * | 2003-05-30 | 2004-12-23 | Siemens Ag | Electrical machine with flameproof encapsulated stator |
| CN101257231A (en) * | 2007-02-26 | 2008-09-03 | 元山科技工业股份有限公司 | Waterproof motor stator device and manufacturing method thereof |
| CN102468725B (en) * | 2010-11-08 | 2015-10-21 | 腾禾精密电机(昆山)有限公司 | A kind of process for encapsulating stator coil in motor |
| CN102005874B (en) * | 2010-12-15 | 2012-11-14 | 南车株洲电机有限公司 | Vacuum encapsulating technology method of motor stator notch |
| TWI437799B (en) * | 2011-07-21 | 2014-05-11 | Sunonwealth Electr Mach Ind Co | Glue-coated stator |
| CN103195806B (en) * | 2012-01-04 | 2016-02-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator, magnetic suspension bearing, stator iron core make frock and method |
| CN103475164B (en) * | 2013-08-30 | 2015-07-08 | 北京兴华机械厂 | Coreless motor stator glue pouring and shaping mechanism |
| CN104868667B (en) * | 2015-06-08 | 2017-03-22 | 大连电机集团有限公司 | Glue-pouring mold for motor stator winding |
| CN205212662U (en) * | 2015-11-18 | 2016-05-04 | 杭州摩恩电机有限公司 | A casting glue frock for motor stator |
| CN105317839A (en) * | 2015-12-14 | 2016-02-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing stator component and preparation method thereof |
| CN205207432U (en) * | 2015-12-14 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator module |
| CN106411070B (en) * | 2016-10-17 | 2019-01-25 | 珠海格力电器股份有限公司 | Magnetic suspension bearing stator magnetic steel assembling and positioning device |
| CN106655662A (en) * | 2017-01-10 | 2017-05-10 | 广东力好科技股份有限公司 | Glue pouring device and glue pouring process for motor stator |
| CN107289003B (en) * | 2017-07-14 | 2019-04-19 | 中国人民解放军海军工程大学 | Homopolar permanent magnet offset radial magnetic bearing |
| CN207500339U (en) * | 2017-10-20 | 2018-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator module sealing tooling and magnetic suspension bearing |
| CN107575475B (en) * | 2017-10-20 | 2023-06-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing |
-
2017
- 2017-10-20 CN CN201710985827.6A patent/CN107575475B/en active Active
-
2018
- 2018-10-16 WO PCT/CN2018/110497 patent/WO2019076305A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019076305A1 (en) | 2019-04-25 |
| CN107575475A (en) | 2018-01-12 |
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