CN108183567B - Motor surface-mounted magnetic steel and rotor bonding structure and bonding method thereof - Google Patents
Motor surface-mounted magnetic steel and rotor bonding structure and bonding method thereof Download PDFInfo
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- CN108183567B CN108183567B CN201711430980.9A CN201711430980A CN108183567B CN 108183567 B CN108183567 B CN 108183567B CN 201711430980 A CN201711430980 A CN 201711430980A CN 108183567 B CN108183567 B CN 108183567B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model provides a motor table pastes formula magnet steel and rotor's cementing structure and cementing method, table pastes formula magnet steel and pastes in rotor shaft surface, the shaft surface is equipped with the gluey groove structure that corresponds with table pastes formula magnet steel, gluey groove structure includes main gluey groove and 2 glue reposition of redundant personnel hold up tanks, and after main gluey groove was filled glue, with the magnet steel location to the corresponding position of gluey groove structure, the magnet steel bulge sinks into main gluey groove, and magnet steel and the epaxial gluey groove structure of rotor interact each other, extrude the interior unnecessary glue of main gluey inslot to glue reposition of redundant personnel hold up tank in, form the stable glue film that thickness is b between main gluey groove and magnet steel, carry out the glue solidification according to the glue solidification demand, accomplish the cementing of magnet steel and rotor. The glue joint structure scheme of the invention has convenient and simple operation in the whole process, improves the stability and reliability of the glue layer, effectively controls the diameter size of the rotor and ensures the consistency of the electromagnetic size. Greatly saving the use amount of glue and improving the production operation efficiency.
Description
Technical Field
The invention belongs to the technical field of motors, relates to connection of surface-mounted magnetic steel and a rotor, and discloses a glue joint structure of the surface-mounted magnetic steel and the rotor of a motor and a glue joint method of the surface-mounted magnetic steel and the rotor.
Background
In the existing motor industry, both motors and servo motors have the application of surface-mounted magnetic steel; the control of the installation and assembly size of the surface-mounted magnetic steel directly influences the electromagnetic air gap between the stator and the rotor of the motor, thereby influencing the final operation parameters of the motor. The main influence is that no matter the installation size or the installation effect can all be influenced by the thickness of the adhesive layer when the surface-mounted magnetic steel is attached to the surface of the rotor. A lot of current motor manufacturers do not design and control glue film thickness and appearance glued structure, only directly carry out the subsides installation of magnet steel after scribbling glue with magnet steel and rotor surface, unsatisfied requirement when glue thickness, if too thick or too thin, perhaps effectively paste the area and be less than when pasting the demand, will directly lead to the electromagnetic air gap size between stator and rotor inconsistent, the motor is exerted power, parameter such as back electromotive force is unstable or the overproof, the motor is when high-speed operation simultaneously, the glue film receives stress fracture to lead to the surface to paste the magnet steel and break away from the rotor, cause the motor accident.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical current situation, a new mounting scheme of the surface-mounted magnetic steel is needed, the control degree of the adhesive layer and the surface-mounted magnetic steel during processing and mounting is improved, the stability and consistency of relevant parameters during the operation of the motor are improved, and the accident rate of the surface-mounted magnetic steel separating from the rotor is reduced.
The technical scheme of the invention is as follows: the motor surface-mounted type magnetic steel and rotor glue joint structure is characterized in that the surface-mounted type magnetic steel is pasted on the surface of a rotor shaft, a glue groove structure which corresponds to the surface-mounted type magnetic steel one by one is arranged on the surface of the shaft, the glue groove structure comprises a main glue groove, 2 glue shunt storage grooves are arranged corresponding to the main glue groove, the 2 glue shunt storage grooves are arranged on the surface of the shaft and are positioned on two sides of the main glue groove, a glue overflow part is arranged between the glue shunt groove and the main glue groove, the other side of the glue shunt groove, which is opposite to the main glue groove, is a magnetic steel supporting part, the top surface of the glue overflow part is a glue height positioning and flow surface, the top surface of the magnetic steel supporting part is a magnetic steel contact surface, and the magnetic steel contact surface is higher than; the wainscot of table subsides formula magnet steel is equipped with the bellying that corresponds with main gluey groove, and hugs closely with the magnet steel contact surface when table subsides formula magnet steel and rotor shaft surface are pasted, have the clearance between the tank bottom of bellying and main gluey groove, clearance thickness sets for according to the glue demand of choosing in the within range that the electromagnetism principle allows, and after the main gluey groove was filled up glue, the glue volume less than or equal to two glue reposition of redundant personnel holding tanks that overflow because of the bellying is impressed.
As a transform mode, 2 glue reposition of redundant personnel holding vessels set up on the magnet steel, and main glue groove both sides are glue overflow portion and the magnet steel support portion that the step set up in proper order, and when magnet steel and rotor shaft pasted, 2 glue reposition of redundant personnel holding vessels correspond respectively and are located main glue groove both sides, correspond with glue overflow portion.
As another transformation mode, the glue groove structure and the protruding part are arranged on the surface of the shaft and the magnetic steel in a position-to-position mode.
As an improvement mode, the rotor shaft is provided with axial positioning end faces, the axial positioning end faces form one side wall of the main rubber groove, the axial positioning end faces are located on the same plane, and the plane is perpendicular to the rotor shaft.
Based on the design idea of the glue groove structure, the invention further provides a second glue groove structure for the surface-mounted magnetic steel and the rotor of the motor, wherein the surface-mounted magnetic steel is adhered to the surface of the rotor shaft, the surface of the shaft is provided with the glue groove structures corresponding to the surface-mounted magnetic steel one by one, each glue groove structure comprises a main glue groove, magnetic steel supporting parts are arranged on two sides of the main glue groove, the top surface of each magnetic steel supporting part is a magnetic steel contact surface, the adhering surface of the surface-mounted magnetic steel is a plane or a cambered surface parallel to the bottom surface of the main glue groove, the surface-mounted magnetic steel is adhered to the magnetic steel contact surface when being adhered to the surface of the rotor shaft, a gap is formed between the surface-mounted magnetic steel and the bottom surface of the main glue groove, and the thickness of the gap is set within the range allowed by the; the rotor shaft is provided with an axial positioning end face, the axial positioning end face forms one side wall of the main glue groove, each axial positioning end face is located on the same plane, the plane is perpendicular to the rotor shaft, glue injection holes communicated with the main glue groove are formed in the axial positioning end face, and the glue injection holes are communicated with gaps between the magnetic steel and the bottom of the main glue groove.
As a transformation mode of the second glue joint structure, the glue groove structure is arranged on the magnetic steel.
According to the first bonding method of the bonding structure of the motor surface-mounted magnetic steel and the rotor, when the magnetic steel is bonded, sufficient glue is coated in the main glue groove, the glue amount initially coated in the main glue groove is larger than the volume of the main glue groove, a scraping tool is used for scraping after propping against the glue height positioning and flowing surface so that the leveling surface of the glue layer in the main glue groove is level with the glue height positioning and flowing surface, then the magnetic steel is positioned to the corresponding position of the glue groove structure, the bulge part sinks into the main glue groove, the bulge part and the main glue groove are mutually matched to act, redundant glue in the main glue groove is extruded into the glue shunting storage groove, a stable glue layer with the thickness of b is formed between the bottom of the main glue groove and the bulge part, and the thickness b is adjusted according to the glue requirement within the range allowed by an electromagnetic principle;
after all the magnetic steels are adhered, a tool for circumferential positioning and fixing of the magnetic steels is additionally arranged on the rotor shaft, the magnetic steels are fixed, the positioning and fixing tool needs to keep a certain fixing force so as to prevent glue from leaking from the contact surfaces or the axial positioning end surfaces corresponding to the magnetic steels and the rotor, glue is solidified according to the glue solidification requirement, the positioning and fixing tool is detached after the glue is solidified, and the whole process of adhering the magnetic steels on the rotor shaft is completed.
Furthermore, the width dimension a of the main glue groove is adjusted, so that the minimum effective bonding area of glue in the main glue groove can meet the requirement that the glue layer is not separated from the rotor when the magnetic steel is stressed maximally.
According to the second method for bonding the bonding structure of the surface-mounted magnetic steel and the rotor of the motor, the magnetic steel is positioned and fixed to the corresponding position of the rotor shaft through the tool, a glue layer space with the thickness of b is formed between the main glue groove and the magnetic steel or between the main glue groove and the surface of the rotor shaft, the glue layer space is directly injected into the glue injection hole by manual or automatic glue injection equipment, the glue layer space is filled with glue, and bonding of the magnetic steel and the rotor shaft is completed after curing.
The invention has the following beneficial effects:
1. compared with the prior art, the scheme of the invention has the advantages that after the rotor shaft and the magnetic steel are subjected to small-range and small-amount structural changes, a stable glue layer with consistent thickness can be formed through the glue groove structure, and the thickness of the glue layer can be adjusted and controlled according to requirements.
2. Compared with the prior art, the scheme of the invention provides a glue accommodating scheme that when the magnetic steel is adhered to the rotor shaft, the main glue groove is extruded to cause excessive glue water to flow and store into the glue split storage groove, thereby effectively avoiding the phenomenon that when the magnetic steel is contacted with the magnetic steel supporting part on the rotor shaft, the diameter size of the finally formed rotor is changed due to the invasion of the glue flowing out from the main glue groove between the magnetic steel and the rotor shaft, and simultaneously ensuring the height consistency of each piece of magnetic steel after adhesion.
3. The scheme of the invention simultaneously avoids the phenomenon that the excessive glue needs to be manually erased and overflows when the magnetic steel is pasted. The method can strictly control the glue storage amount of the glue layer, greatly saves the glue using amount and improves the production efficiency compared with the prior art, and the magnetic steel pasting effect is obviously improved.
4. The rubber groove structure of the scheme of the invention can be flexibly arranged, the magnetic steel is completely adhered by the glue in the main rubber groove, the physical contact surface of the magnetic steel and the rotor is the magnetic steel contact surface 4, under the condition that the rubber groove structure is arranged on the rotor shaft, the magnetic steel covers the whole rubber groove structure, and meanwhile, the magnetic steel has the protrusion opposite to the main rubber groove, and the processing is simple. Meanwhile, the scheme of the invention can also be that the gluing structure of the rotor is convex, the surface which is correspondingly adhered with the magnetic steel is concave, and the uniform glue layer thickness b is ensured, at the moment, the glue shunting storage tank can be arranged on the rotor shaft or can also be arranged on the magnetic steel.
5. Compared with the scheme of coating glue and then pasting the magnetic steel, the glue injection scheme has higher efficiency and is beneficial to realizing automation.
Drawings
Fig. 1 is a structural view of surface-mounted magnetic steel in the embodiment of the invention.
Fig. 2 is a structural view of a rotor shaft in an embodiment of the present invention.
Fig. 3 is a shaft end face direction view of a rotor shaft in an embodiment of the present invention.
Fig. 4 is a structural view of an axial limiting end face part of magnetic steel on a rotor shaft in the embodiment of the invention.
Fig. 5 is a structural view of a glue groove structure in an embodiment of the invention.
Fig. 6 is a view of a piece of magnetic steel adhered to the rotor shaft according to the embodiment of the present invention.
Fig. 7 is an end view of the magnetic steel after being attached to the rotor shaft in the adhesive structure according to the embodiment of the present invention.
Fig. 8 is a dimensional view of the adhesive structure according to the embodiment of the present invention, wherein a and b are determined according to the thickness of the adhesive layer and the effective adhesive area of the magnetic steel. c. d is all more than 0.
Fig. 9 is a view of the complete rotor after the magnetic steel and the rotor shaft are glued together according to the embodiment of the present invention.
Detailed Description
The invention provides a method for obtaining a stable adhesive layer and a consistent rotor diameter required by adhering magnetic steel by changing a structure of a motor rotor in a small range. The scheme has the advantages of compact and simple structure, strong controllability and stable and reliable glue layer, greatly saves the glue consumption for pasting, and improves the production efficiency of pasting the magnetic steel.
Fig. 1 to 4 show an embodiment of the structure of the surface-mounted magnetic steel and the rotor shaft of the present invention, the surface of the rotor shaft is provided with a glue groove structure for mounting the surface-mounted magnetic steel, and the glue groove structure is uniformly arranged around the rotor shaft in a circle. The following describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 5-9, the surface-mount magnetic steels are attached to the surface of the shaft by glue, the number of the surface-mount magnetic steels is n, n is a natural integer greater than or equal to 1, and the number of the example magnetic steels listed in this embodiment is 10. And n glue groove structures are required to be uniformly processed on the circumference of the shaft corresponding to the number of the magnetic steels.
The rotor shaft is circumferentially and uniformly provided with a glue groove structure as shown in fig. 5, the glue groove structure comprises a main glue groove 1 and 2 glue shunt storage grooves 2, the 2 glue shunt storage grooves 2 are positioned at two sides of the main glue groove 1, a glue overflow part is arranged between the glue shunt storage groove 2 and the main glue groove 1, a magnetic steel supporting part is arranged at the other side of the glue shunt groove opposite to the main glue groove, the top surface of the glue overflow part is a glue height positioning and flowing surface 3, the top surface of the magnetic steel supporting part is a magnetic steel contact surface 4, the magnetic steel contact surface 4 is higher than the glue height positioning and flowing surface 3, the height difference is c, and the glue can freely flow into the glue shunt storage groove 2 from the glue height positioning and flowing surface 3 in the main glue groove 1; surface-mounted magnetic steel covers whole gluey groove structure, and the subsides face of magnet steel is equipped with the bellying that corresponds with main gluey groove, and when surface-mounted magnetic steel is pasted with the rotor shaft, both sides and magnet steel contact surface hug closely, as shown in fig. 7 and fig. 8, have the clearance between the tank bottom in bellying and main gluey groove, clearance thickness b sets for according to the glue demand in the within range that the electromagnetism principle allows. Meanwhile, when the glue groove structure is designed, after the main glue groove is filled with glue, the volume of the glue overflowing due to the pressing in of the convex part is less than or equal to the total volume of the two glue shunt storage grooves; in addition, the width dimension a of the main glue groove is adjusted, so that the minimum effective bonding area occupation ratio of the glue in the main glue groove meets the requirement that the glue layer of the rotor is not separated when the magnetic steel is stressed maximally, and the process parameters are calculated in the prior art and are not detailed.
As shown in fig. 4 and 5, the rotor shaft is preferably further provided with an axial positioning end face 5, the axial positioning end face constitutes one side wall of the main glue groove, and the axial positioning end faces of all the glue groove structures are located on the same plane perpendicular to the rotor shaft. The axial positioning end face is used for assisting the axial positioning of the magnetic steel on the rotor shaft.
When above-mentioned structure that splices, before pasting the magnet steel, with vertical the putting behind the lower extreme of frock clamp axle for the rotor shaft, axial positioning terminal surface is located the axle lower extreme this moment. The consideration here is that glue is fluid although having viscosity, so receive the action of gravity and can take place certain flow phenomenon, do benefit to the air escape in the glue groove and glue does not produce the phenomenon that breaks away from the glue groove in order to guarantee glue when the overflow with being extruded, when pasting a plurality of magnet steel simultaneously, before not installing the frock, prevent that the magnet steel from breaking away from the phenomenon of gluing the layer because of the action of gravity, put rotor shaft vertically. The volume of a main glue groove is determined, sufficient selected glue tends to be evenly smeared in the main glue groove, the volume of the initial glue is larger than that of the main glue groove, the viscosity, the type and the like of the glue are selected according to the process requirements, the glue can be kept in the main glue groove before being solidified, then a plane of a leveling knife is propped against a glue height positioning and flowing surface by utilizing the leveling knife or a similar tool, the glue in the main glue groove is scraped to be level with the glue height positioning and flowing surface from the positioning end surface along the axial direction and in the direction far away from the axial positioning end surface from the bottom to the top, and the redundant glue is scraped by a scraper. Taking out the surface-mounted magnetic steel to be mounted, abutting the end face of one end of the magnetic steel against the axial positioning end face, aligning the boss on the magnetic steel with the position of the main glue groove, slowly attaching the magnetic steel onto the shaft from bottom to top in an inclined manner, contacting the magnetic steel with the contact surface of the magnetic steel on the shaft, and sinking the boss on the magnetic steel into the main glue groove by a certain depth d, as shown in fig. 8. At the moment, part of glue in the main glue groove is extruded by the magnetic steel protruding part, due to the gap between the protruding part and the groove bottom of the main glue groove, the glue is filled in the gap under the combined action of the magnetic steel extrusion and the glue self-gravity to form a glue layer with stable thickness b, the redundant glue flows through the glue height positioning from the main glue groove gradually and enters the glue distribution storage groove after flowing through the glue height positioning surface, the volume of the extruded glue in the main glue groove needs to be ensured to be equal to or less than the total volume of 2 glue distribution storage grooves, and the glue distribution storage groove can be calculated when the initial structural dimension is designed. Repeating the steps, and respectively sticking the 10 magnetic steels to the corresponding positions on the shaft.
The method comprises the steps of additionally arranging a circumferential positioning and fixing tool on a rotor adhered with magnetic steel, fixing the magnetic steel, wherein the positioning and fixing tool needs to keep a certain fixing force to prevent glue from leaking from a contact surface or an axial positioning end surface of the magnetic steel, carrying out glue solidification according to glue solidification requirements, considering selection of magnetizing sequence of the magnetic steel and glue solidification temperature requirements, and dismantling the positioning and fixing tool after the glue is solidified. So far, the whole process of adhering the magnetic steel (part 1) on the shaft (part 2) is completed.
The cementing structure of the invention is realized flexibly, in the above scheme, the glue shunt storage tank and the main glue tank are arranged on the rotor shaft together, the glue shunt storage tank can also be arranged on the magnetic steel, at this time, the glue overflow part beside the main glue tank and the magnetic steel supporting part form a ladder structure, a fall surface is arranged between the glue height positioning and flowing surface 3 and the magnetic steel contact surface 4, and when the magnetic steel is adhered, the position of the glue shunt storage tank on the magnetic steel corresponds to the glue height positioning and flowing surface 3. The scheme of the invention utilizes the structural matching of the convex part and the main glue groove, and the scheme of the invention can also be that the position of the surface of the rotor shaft to be adhered with the magnetic steel is the convex part, the surface corresponding to the adhered magnetic steel is of a glue groove structure, and the uniform glue layer thickness b can be ensured if the two structures are matched.
The invention also provides a glue injection scheme: the surface-mounted magnetic steel is adhered to the surface of the rotor shaft, the surface of the shaft is provided with a glue groove structure which corresponds to the surface-mounted magnetic steel one by one, the glue groove structure comprises a main glue groove, magnetic steel supporting parts are arranged on two sides of the main glue groove, the top surface of each magnetic steel supporting part is a magnetic steel contact surface, the adhering surface of the surface-mounted magnetic steel is a plane or a cambered surface which is parallel to the bottom surface of the main glue groove, the surface-mounted magnetic steel is tightly attached to the magnetic steel contact surface when being adhered to the surface of the rotor shaft, a gap is formed between the surface-mounted magnetic steel and the bottom of the main glue groove, and the gap thickness is set within the range allowed by an; the rotor shaft is provided with an axial positioning end face, the axial positioning end face forms one side wall of the main glue groove, each axial positioning end face is located on the same plane, the plane is perpendicular to the rotor shaft, glue injection holes communicated with the main glue groove are formed in the axial positioning end face, and the glue injection holes are communicated with gaps between the magnetic steel and the bottom of the main glue groove. Form the injecting glue space between the main glue groove on magnet steel and axle surface like this, carry out the injecting glue through the injecting glue hole on the axial positioning terminal surface, main glue groove also can set up on the magnet steel equally, sets up main glue groove on the magnet steel promptly, forms the injecting glue space with rotor shaft surface cooperation. When the cementing structure is cemented, the magnetic steel is positioned and fixed to the corresponding position of the rotor shaft through the tool, a glue layer space with the thickness of b is formed between the main glue groove and the magnetic steel or between the main glue groove and the surface of the rotor shaft, glue is directly injected into the glue injection hole by manual or automatic glue injection equipment, the glue layer space is filled with the glue, and the cementing of the magnetic steel and the rotor shaft is completed after the glue is cured.
The glue joint structure scheme of the invention has convenient and simple operation in the whole process, improves the stability and reliability of the glue layer, effectively controls the diameter size of the rotor and ensures the consistency of the electromagnetic size. The structural design greatly saves the use amount of glue and improves the production operation efficiency.
The gluing structure scheme is not limited to the structural form listed in the embodiment, and the invention is also suitable for the condition that the surface-mounted magnetic steel mounting surface is in an arc shape or the condition that an electromagnetic principle is feasible and the mounting surface is in a special shape. The glue joint structure scheme of the invention can be independently arranged on the shaft or the rotor core, and also can be independently arranged on the surface-mounted magnetic steel, and is not limited to the shapes, sizes and numbers of parts exemplified in the embodiment.
Claims (10)
1. The motor surface-mounted type magnetic steel and rotor splicing structure is characterized in that the shaft surface is provided with glue groove structures which correspond to the surface-mounted type magnetic steel one by one, each glue groove structure comprises a main glue groove, 2 glue shunt storage grooves are arranged corresponding to the main glue grooves, the 2 glue shunt storage grooves are arranged on the shaft surface and located on two sides of the main glue groove, a glue overflow part is arranged between each glue shunt storage groove and the corresponding main glue groove, the other side of each glue shunt storage groove relative to the corresponding main glue groove is a magnetic steel supporting part, the top surface of each glue overflow part is a glue height positioning and flow surface, the top surface of each magnetic steel supporting part is a magnetic steel contact surface, and the magnetic steel contact surface is higher than the glue height positioning and flow surface; the adhesion surface of surface-mounted magnetic steel is provided with a protruding part corresponding to the main glue groove, the surface-mounted magnetic steel is tightly attached to the contact surface of the magnetic steel when being adhered to the surface of the rotor shaft, a gap is formed between the protruding part and the bottom of the main glue groove, the thickness of the gap is set within the range allowed by the electromagnetic principle, and after the main glue groove is filled with glue, the total volume of two glue shunt storage grooves is less than or equal to the volume of the glue overflowed due to the fact that the protruding part is pressed in.
2. The motor surface-mounted type magnetic steel and rotor glue joint structure is characterized in that the surface of the shaft is provided with glue groove structures which correspond to the surface-mounted type magnetic steel one by one, each glue groove structure comprises a main glue groove, 2 glue shunt storage grooves are arranged corresponding to the main glue grooves, the 2 glue shunt storage grooves are arranged on the magnetic steel, a glue overflow part and a magnetic steel supporting part which are arranged in a stepped mode are sequentially arranged on two sides of the main glue groove, the top surface of the glue overflow part is a glue height positioning and flow surface, the top surface of the magnetic steel supporting part is a magnetic steel contact surface, and the magnetic steel contact surface is higher than the glue height positioning and flow surface; the wainscot of table subsides formula magnet steel is equipped with the bellying that corresponds with main glue groove, and when magnet steel and rotor shaft pasted, 2 glue reposition of redundant personnel hold up tanks correspond respectively and are located main glue groove both sides, correspond with the top surface of glue overflow portion, and table subsides formula magnet steel is hugged closely with the magnet steel contact surface, have the clearance between the tank bottom in bellying and main glue groove, clearance thickness sets for in the within range that the electromagnetism principle allows, and after the main glue groove was filled up with glue, the glue volume less than or equal to two glue reposition of redundant personnel hold up tanks that overflow because of the bellying impresses.
3. The motor surface-mounted magnetic steel and rotor bonding structure as claimed in claim 1 or 2, wherein the glue groove structure and the protruding portion are arranged at opposite positions on the shaft surface and the magnetic steel.
4. The structure of claim 1 or 2, wherein the rotor shaft has an axial positioning end face, the axial positioning end face forms a side wall of the main slot, and the axial positioning end faces are located on the same plane, which is perpendicular to the rotor shaft.
5. The structure of claim 3, wherein the rotor shaft has axial positioning end faces, the axial positioning end faces form a sidewall of the main slot, and the axial positioning end faces are located on a same plane, which is perpendicular to the rotor shaft.
6. The method for bonding the bonding structure of the motor surface-mounted magnetic steel and the rotor as claimed in any one of claims 1-2, wherein when the magnetic steel is bonded, a sufficient amount of glue is applied to the main glue groove, the amount of glue initially applied to the main glue groove is greater than the volume of the main glue groove, the glue layer in the main glue groove is scraped after being pressed against the glue height positioning and flowing surface by using a scraping tool, so that the leveling surface of the glue layer in the main glue groove is leveled with the glue height positioning and flowing surface, the magnetic steel is positioned to the corresponding position of the glue groove structure, the protrusion is sunk into the main glue groove, the protrusion and the main glue groove are mutually matched to extrude the redundant glue in the main glue groove into the glue diversion storage groove, a stable glue layer with a thickness b is formed between the bottom of the main glue groove and the protrusion, and the thickness b is adjusted according to the need of the glue within the range allowed by the electromagnetic principle;
after all the magnetic steels are adhered, a tool for circumferential positioning and fixing of the magnetic steels is additionally arranged on the rotor shaft, the magnetic steels are fixed, the positioning and fixing tool needs to keep a certain fixing force so as to prevent glue from leaking from the contact surfaces or the axial positioning end surfaces corresponding to the magnetic steels and the rotor, glue is solidified according to the glue solidification requirement, the positioning and fixing tool is detached after the glue is solidified, and the whole process of adhering the magnetic steels on the rotor shaft is completed.
7. The method as claimed in claim 6, wherein the width dimension a of the main glue groove is adjusted to satisfy the requirement that the minimum effective bonding area of the glue in the main glue groove does not separate from the rotor glue layer when the magnetic steel is under the maximum stress.
8. The motor surface-mounted type magnetic steel and rotor glue joint structure is characterized in that the shaft surface is provided with a glue groove structure which corresponds to the surface-mounted type magnetic steel one by one, the glue groove structure comprises a main glue groove, two sides of the main glue groove are magnetic steel supporting parts, the top surface of each magnetic steel supporting part is a magnetic steel contact surface, the sticking surface of the surface-mounted type magnetic steel is a plane or a cambered surface which is parallel to the bottom surface of the main glue groove, the surface-mounted type magnetic steel is tightly attached to the magnetic steel contact surface when being stuck to the surface of the rotor shaft, a gap is formed between the surface-mounted type magnetic steel and the bottom surface of the main glue groove, and the gap thickness is set in a range allowed by an electromagnetic principle; the rotor shaft is provided with an axial positioning end face, the axial positioning end face forms one side wall of the main glue groove, each axial positioning end face is located on the same plane, the plane is perpendicular to the rotor shaft, glue injection holes communicated with the main glue groove are formed in the axial positioning end face, and the glue injection holes are communicated with gaps between the magnetic steel and the bottom of the main glue groove.
9. The motor surface-mounted type magnetic steel and rotor glue joint structure is characterized in that a glue groove structure is arranged on the surface-mounted type magnetic steel, the glue groove structure comprises a main glue groove, magnetic steel supporting portions are arranged on two sides of the main glue groove, the top surface of each magnetic steel supporting portion is a rotor contact surface, the bottom surface of the main glue groove is a plane or a cambered surface parallel to the surface of a rotor shaft, when the surface-mounted type magnetic steel is pasted with the surface of the rotor shaft, the rotor contact surface is clung to the surface of the rotor shaft, a gap is formed between the bottom of the surface-mounted type magnetic steel main glue groove and the surface of the rotor shaft, and the thickness of the gap is set in an allowable range of an electromagnetic principle; the rotor shaft is provided with an axial positioning end face, the axial positioning end face forms one side wall of the main glue groove, each axial positioning end face is located on the same plane, the plane is perpendicular to the rotor shaft, glue injection holes communicated with the main glue groove are formed in the axial positioning end face, and the glue injection holes are communicated with a gap between the surface of the rotor shaft and the bottom of the main glue groove.
10. The method as claimed in claim 8 or 9, wherein the magnetic steel is positioned and fixed to the corresponding position of the rotor shaft by a fixture, a glue layer space with a thickness of b is formed between the main glue groove and the magnetic steel or between the main glue groove and the surface of the rotor shaft, a pre-calculated sufficient amount of glue is directly injected into the glue injection hole by a manual or automatic glue injection device, the glue layer space is filled with the glue, and the magnetic steel and the rotor shaft are bonded after curing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711430980.9A CN108183567B (en) | 2017-12-26 | 2017-12-26 | Motor surface-mounted magnetic steel and rotor bonding structure and bonding method thereof |
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| CN201711430980.9A CN108183567B (en) | 2017-12-26 | 2017-12-26 | Motor surface-mounted magnetic steel and rotor bonding structure and bonding method thereof |
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| CN108183567B true CN108183567B (en) | 2020-11-17 |
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| CN113824229B (en) * | 2021-09-23 | 2022-05-17 | 徐州永丰磁业有限公司 | Wheel hub motor magnet steel positioning, gluing and bonding structure for electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0295150A (en) * | 1988-09-27 | 1990-04-05 | Matsushita Electric Works Ltd | Permanent magnet rotor |
| JP3788186B2 (en) * | 2000-04-20 | 2006-06-21 | 松下電器産業株式会社 | Electric motor rotor |
| JP2007060889A (en) * | 2005-07-29 | 2007-03-08 | Yaskawa Electric Corp | Permanent magnet type motor |
| CN201910685U (en) * | 2010-10-20 | 2011-07-27 | 常州富兴机电有限公司 | Motor rotor |
| CN202068248U (en) * | 2011-06-02 | 2011-12-07 | 中山大洋电机制造有限公司 | Novel rotor assembly |
| CN103312069B (en) * | 2012-03-14 | 2016-08-03 | 珠海格力电器股份有限公司 | Motor permanent magnet fixed structure, fixing means and include the motor of this structure |
| CN102856997B (en) * | 2012-08-17 | 2014-12-31 | 宁波菲仕电机技术有限公司 | Method for assembly of internal rotor of permanent magnet motor |
| CN106253521A (en) * | 2016-08-23 | 2016-12-21 | 黄石东贝电器股份有限公司 | A kind of magneto Surface Mount rotor |
| CN206099555U (en) * | 2016-10-21 | 2017-04-12 | 合肥旭弘塑胶制品有限公司 | Injection -molded rotor |
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