CN113765253B - Rotor magnetic steel assembling method, rotor and supporting tool - Google Patents
Rotor magnetic steel assembling method, rotor and supporting tool Download PDFInfo
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- CN113765253B CN113765253B CN202111119772.3A CN202111119772A CN113765253B CN 113765253 B CN113765253 B CN 113765253B CN 202111119772 A CN202111119772 A CN 202111119772A CN 113765253 B CN113765253 B CN 113765253B
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- rotor yoke
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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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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a rotor magnetic steel assembling method, a rotor and a supporting tool. In the assembling process, firstly, pressing blocks are pre-installed in the clamping grooves on the rotor yoke, so that one of at least one group of two adjacent clamping grooves is provided with the pressing block, and the other clamping groove is in an idle state; then, inserting an inserting part of the supporting tool into the empty clamping groove, and finishing gluing on the magnetic steel and/or the pasting position; then, one side of the magnetic steel is abutted against the pressing block, the pressing block serves as an abutting point, and the other side of the magnetic steel is pressed to a supporting part of the supporting tool. At this time, the magnetic steel is in an inclined state on the pasting position. And finally, the supporting tool is pulled out along the axis direction of the rotor yoke, so that the suspended side of the magnetic steel is sucked towards the pasting position, the glue between the magnetic steel and the pasting position is flattened, the magnetic steel and the rotor yoke are pasted without being hindered, the air mixing is reduced, the glue performance is exerted to the maximum extent, and the glue failure risk is reduced.
Description
Technical Field
The invention relates to the technical field of motor equipment, in particular to a rotor magnetic steel assembling method, a rotor and a supporting tool.
Background
The rotor of the permanent magnet synchronous motor mainly comprises a rotor yoke and permanent magnet steel magnets. The permanent magnet magnetic steel is a power source component of the motor and needs to be reliably fixed on the rotor yoke. The existing fixing method comprises glue adhesion, mechanical locking or the combination of the two methods. Wherein the optimal process of glue application is a vertical movement between the adherend pieces, spreading the glue and reaching a minimum distance.
In the pasting process, firstly, glue is coated on the pasting surface of the rotor yoke or the magnetic steel; then the magnetic steel is moved in place in a sliding manner along the axial direction of the rotor yoke, so that the adhesion is realized. Because most of glue used for adhering the magnetic steel is anaerobic glue, more air can be mixed into the glue along with the contusion of the magnetic steel on an adhering surface, so that the glue is not easy to solidify and is ineffective or partially ineffective. Therefore, in the traditional pasting process, in order to reduce the glue failure risk, the glue consumption is intentionally increased in the actual operation, so that glue overflow is wasted in pasting, and the assembly cost is increased.
Disclosure of Invention
Based on the above, it is necessary to provide a rotor magnetic steel assembly method, a rotor and a supporting tool, so that the magnetic steel can be pasted without any friction, and the performance of the glue is exerted to the maximum extent; meanwhile, the waste of glue is reduced, and the assembly cost is reduced.
A rotor magnetic steel assembling method comprises the following steps: pre-installing a pressing block in the clamping grooves on the rotor yoke, so that one of at least two adjacent clamping grooves is provided with the pressing block, and the other clamping groove is in an empty state, wherein a sticking position is arranged between any two adjacent clamping grooves; inserting an insertion part on the supporting tool into a clamping groove which is in an empty state and is adjacent to the pressing block, and gluing the magnetic steel and/or a gluing position between the pressing block and the supporting tool; one side of the magnetic steel is in contact with the sticking position and is abutted against the pressing block, and the other side of the magnetic steel is pressed to the bearing part of the bearing tool; drawing out the supporting tool along the axial direction of the rotor yoke so as to suck the magnetic steel on the sticking position; and after the magnetic steel is drawn out, the pressing block is arranged in the clamping groove after the supporting tool is drawn out, and the steps are repeatedly executed to finish the pasting of all the magnetic steel.
In the assembling process of the rotor magnetic steel, firstly, pressing blocks are pre-installed in the clamping grooves on the rotor yoke, so that one of at least one group of two adjacent clamping grooves is provided with the pressing block and the other clamping groove is in an idle state; then, inserting an inserting part of the supporting tool into the empty clamping groove, and finishing gluing on the magnetic steel and/or the pasting position; then, one side of the magnetic steel is abutted against the pressing block, the pressing block serves as an abutting point, and the other side of the magnetic steel is pressed to a supporting part of the supporting tool. At the moment, the magnetic steel is in an inclined state on the pasting position, namely one side of the magnetic steel is pasted on the pasting position and is abutted against the pressing block; the other side is pressed on the bearing part and is in a suspended state. And then, the supporting tool is pulled out along the axis direction of the rotor yoke, so that the suspended side of the magnetic steel is sucked towards the pasting position, the glue between the magnetic steel and the pasting position is flattened, the magnetic steel and the rotor yoke are pasted without being hindered, the air mixing is reduced, the glue performance is exerted to the maximum extent, and the glue failure risk is reduced. Therefore, the glue consumption between the magnetic steel and the pasting position is not required to be additionally increased, the glue waste is reduced, and the assembly cost is reduced. Because before the actuation, magnet steel one side is raised for the supporting part, consequently, can effectively reduce the actuation impact force of magnet steel on pasting the position, guarantee that glue evenly spreads out, avoid glue to splash, improve the quality of pasting of magnet steel.
In one embodiment, the step of pre-installing the pressing block in the slot on the rotor yoke further comprises: and correspondingly arranging the pressing blocks into the clamping grooves on the rotor yoke in a manner of every other clamping groove, so that a clamping groove in an empty state is arranged between any two adjacent pressing blocks.
In one embodiment, the step of contacting one side of the magnetic steel with the pasting position and abutting against the pressing block further comprises: one side of each of the two magnetic steels is respectively contacted with the two sticking positions and respectively and correspondingly abutted against the two pressing blocks; and with the abutting position between the magnetic steel and the pressing block as a fulcrum, the other sides of the two magnetic steels are respectively and correspondingly pressed to the two bearing parts on the bearing tool.
In one embodiment, the step of extracting the support tool along the axial direction of the rotor yoke includes: along the axial direction of the rotor yoke, the inserting part and the bearing part are synchronously pulled away from the rotor yoke, so that the magnetic steel is sucked on the sticking position.
In one embodiment, the step of extracting the support tool along the axial direction of the rotor yoke includes: keeping the inserting part in the clamping groove still, and drawing out the bearing part along the axial direction of the rotor yoke so as to suck the magnetic steel on the sticking position; after the lamination, the insertion part is drawn out along the axis direction of the rotor yoke, so that the supporting tool is drawn out of the rotor yoke, wherein the supporting part can move relative to the insertion part.
A supporting tool is applied to the rotor magnetic steel assembling method, and comprises an inserting portion and a supporting portion arranged on the inserting portion, wherein the inserting portion is used for being inserted into a clamping groove, and the supporting portion is used for supporting one side of magnetic steel.
The supporting tool is applied to the rotor magnetic steel assembling method. In the assembling process, firstly, pressing blocks are pre-installed in the clamping grooves on the rotor yoke, so that one of at least one group of two adjacent clamping grooves is provided with the pressing block, and the other clamping groove is in an idle state; then, inserting an inserting part of the supporting tool into the empty clamping groove, and finishing gluing on the magnetic steel and/or the pasting position; then, one side of the magnetic steel is abutted against the pressing block, the pressing block serves as an abutting point, and the other side of the magnetic steel is pressed to a supporting part of the supporting tool. At the moment, the magnetic steel is in an inclined state on the pasting position, namely one side of the magnetic steel is pasted on the pasting position and is abutted against the pressing block; the other side is pressed on the bearing part and is in a suspended state. And then, the supporting tool is pulled out along the axis direction of the rotor yoke, so that the suspended side of the magnetic steel is sucked towards the pasting position, the glue between the magnetic steel and the pasting position is flattened, the magnetic steel and the rotor yoke are pasted without being hindered, the air mixing is reduced, the glue performance is exerted to the maximum extent, and the glue failure risk is reduced. Therefore, the glue consumption between the magnetic steel and the pasting position is not required to be additionally increased, the glue waste is reduced, and the assembly cost is reduced. Because before the actuation, magnet steel one side is raised for the supporting part, consequently, can effectively reduce the actuation impact force of magnet steel on pasting the position, guarantee that glue evenly spreads out, avoid glue to splash, improve the quality of pasting of magnet steel.
In one embodiment, the bearing part is provided with a binding surface and a bearing surface which are oppositely arranged, the binding surface is used for binding with the binding position, and the bearing surface is used for bearing one side of the magnetic steel.
In one embodiment, the insertion portion and the support portion are of an integral structure.
In one embodiment, the supporting tool further comprises a convex part, and the convex part is arranged on the insertion part and is used for being held by a hand.
A rotor is prepared by adopting the rotor magnetic steel assembling method, the rotor comprises a rotor yoke, a pressing block and magnetic steel, a plurality of clamping grooves are arranged on the rotor yoke and surround the axis of the rotor yoke, the two adjacent clamping grooves are provided with pasting positions for the magnetic steel to be pasted, and the pressing block is inserted into the clamping grooves to position the magnetic steel.
The rotor is prepared by the rotor magnetic steel assembling method. In the assembling process, firstly, pressing blocks are pre-installed in the clamping grooves on the rotor yoke, so that one of at least one group of two adjacent clamping grooves is provided with the pressing block, and the other clamping groove is in an idle state; then, inserting an inserting part of the supporting tool into the empty clamping groove, and finishing gluing on the magnetic steel and/or the pasting position; then, one side of the magnetic steel is abutted against the pressing block, the pressing block serves as an abutting point, and the other side of the magnetic steel is pressed to a supporting part of the supporting tool. At the moment, the magnetic steel is in an inclined state on the pasting position, namely one side of the magnetic steel is pasted on the pasting position and is abutted against the pressing block; the other side is pressed on the bearing part and is in a suspended state. And then, the supporting tool is pulled out along the axis direction of the rotor yoke, so that the suspended side of the magnetic steel is sucked towards the pasting position, the glue between the magnetic steel and the pasting position is flattened, the magnetic steel and the rotor yoke are pasted without being hindered, the air mixing is reduced, the glue performance is exerted to the maximum extent, and the glue failure risk is reduced. Therefore, the glue consumption between the magnetic steel and the pasting position is not required to be additionally increased, the glue waste is reduced, and the assembly cost is reduced. Because before the actuation, magnet steel one side is raised for the supporting part, consequently, can effectively reduce the actuation impact force of magnet steel on pasting the position, guarantee that glue evenly spreads out, avoid glue to splash, improve the quality of pasting of magnet steel.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first flowchart of a rotor magnetic steel assembly method according to an embodiment;
FIG. 2 is a flow chart of a rotor magnetic steel assembly method according to an embodiment;
FIG. 3 is a flow chart of a rotor magnetic steel assembly method according to an embodiment;
FIG. 4 is a schematic view of a rotor according to an embodiment;
FIG. 5 is a schematic view of a rotor yoke and magnetic steel mating structure according to an embodiment;
FIG. 6 is an enlarged view of the structure of FIG. 5 at the position of the frame A;
FIG. 7 is an enlarged view of the support tool shown in FIG. 5 after the support tool is drawn out at the position of the frame A;
FIG. 8 is an enlarged view of the structure of FIG. 5 after a pressing block is loaded at the frame A;
fig. 9 is a schematic structural view of a support tool according to an embodiment.
100. A rotor; 110. a rotor yoke; 111. a card slot; 112. a pasting position; 120. briquetting; 130. magnetic steel; 200. supporting the tool; 210. an insertion portion; 220. a bearing part; 221. a binding face; 222. a bearing surface; 230. a convex portion; 300. and (5) glue.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In an embodiment, referring to fig. 1 and 4, a method for assembling rotor magnetic steel includes the following steps:
s100, pre-installing pressing blocks 120 in the clamping grooves 111 on the rotor yoke 110, so that one of at least two adjacent clamping grooves 111 is provided with the pressing block 120, and the other clamping groove is in an empty state, wherein a sticking position 112 is arranged between any two adjacent clamping grooves 111;
s200, inserting the inserting part 210 on the supporting tool 200 into the clamping groove 111 which is in an empty state and is adjacent to the pressing block 120, and gluing the magnetic steel 130 and/or the gluing position 112 between the pressing block 120 and the supporting tool 200;
s300, contacting one side of the magnetic steel 130 with the pasting position 112, abutting against the pressing block 120, and pressing the other side of the magnetic steel 130 to the supporting part 220 of the supporting tool 200;
s400, drawing out the supporting tool 200 along the axial direction of the rotor yoke 110 so as to attract the magnetic steel 130 to the sticking position 112;
and S500, after the magnetic steel is drawn out, the pressing block 120 is placed into the clamping groove 111 after the supporting tool 200 is drawn out, and the steps are repeatedly executed to complete the adhesion of all the magnetic steel 130.
In the assembly process of the rotor magnetic steel assembly method, please refer to fig. 5 and fig. 6, firstly, the pressing block 120 is pre-installed in the slot 111 of the rotor yoke 110, so that one of at least two adjacent slots 111 has the pressing block 120 and the other is in an empty state; next, with continued reference to fig. 6, the insertion portion 210 of the supporting tool 200 is inserted into the empty slot 111, and the magnetic steel 130 and/or the adhesive position 112 is coated with the adhesive (with the best adhesive effect on the adhesive position 112); then, one side of the magnetic steel 130 is abutted against the pressing block 120, and the pressing block 120 is used as an abutting point, and the other side is pressed against the supporting part 220 of the supporting tool 200. At this time, the magnetic steel 130 is inclined on the pasting position 112, i.e. one side is pasted on the pasting position 112 and abuts against the pressing block 120; the other side is pressed on the supporting part 220 to be in a suspension state. Then, referring to fig. 7, the supporting tool 200 is pulled out along the axial direction of the rotor yoke 110, so that the suspended side of the magnetic steel 130 is attracted toward the pasting position 112, the glue 300 between the magnetic steel 130 and the pasting position 112 is flattened, the magnetic steel 130 and the rotor yoke 110 are pasted without being melted, the air is reduced, the performance of the glue 300 is exerted to the maximum, and the risk of the glue 300 failing is reduced. Therefore, the amount of the glue 300 between the magnetic steel 130 and the pasting position 112 does not need to be additionally increased, the waste of the glue 300 is reduced, and the assembly cost is reduced. Finally, referring to fig. 8, the pressing block 120 is loaded into the slot 111 after the supporting tool 200 is pulled out. Because one side of the magnetic steel 130 is raised by the supporting part 220 before the magnetic steel is sucked, the sucking impact force of the magnetic steel 130 on the sticking position 112 can be effectively reduced, the glue 300 is ensured to be uniformly spread, the splashing of the glue 300 is avoided, and the sticking quality of the magnetic steel 130 is improved.
It should be noted that, during the pre-assembly process, the pre-assembly number of the card slots 111 may be in various cases, such as: only one clamping groove 111 on the rotor yoke 110 is pre-assembled with the pressing block 120, and then all the magnetic steels 130 on the rotor yoke 110 are assembled in a mode of one pressing block 120 and one magnetic steel 130 in sequence; or, in the pre-assembly process, the pressing blocks 120 are directly pre-assembled on half of the clamping grooves 111, and the clamping groove 111 in an empty state is ensured to be arranged between two adjacent clamping grooves 111, so that in the subsequent assembly of the magnetic steel 130, the two magnetic steels 130 and one pressing block 120 are sequentially carried out (namely, the two magnetic steels 130 can be simultaneously pasted); or, in the preassembling process, the press block 120 and the like are preassembled on part of the slots 111. Therefore, the embodiment is not particularly limited, and it is only required that the clamp block 120 is arranged in the clamp groove 111 on one side of the pasting position 112 to be pasted, and the clamp groove 111 on the other side is in an empty state. In this context, the term "empty state" is to be understood as: no other structures are installed in the card slot 111, such as: neither the press 120 nor the support tooling 130 are loaded. Meanwhile, the pasting position 112 and the slot 111 are both extended along the axial direction of the rotor yoke 110. To facilitate understanding of the axis of the rotor yoke 110, taking fig. 1 as an example, the axis of the rotor yoke 110 is the line indicated by S in fig. 1.
It should be further noted that the supporting portion 220 may be designed at the top of the supporting tool 200, or may be designed at the side of the supporting tool 200, and only needs to support one side of the magnetic steel 130. Meanwhile, the thickness of the supporting portion 220 may be selected in various ways. Of course, in the thickness design of the supporting portion 220, the thickness of the supporting portion 220 can be reduced as much as possible on the premise that the supporting portion 220 has a certain structural strength.
In addition, in the present embodiment, "the above steps are repeatedly performed" is to be understood as: when the pressing block 120 is placed in the clamping groove 111 after the supporting tool 200 is pulled out, at least one magnetic steel 130 is pasted, and then the contents of the steps S200 to S600 are repeated to finish the subsequent pasting of the magnetic steel 130. Such as: after at least one magnetic steel 130 is adhered, at least one adjacent two clamping grooves 111 are formed in the rotor yoke 110, one clamping groove 111 is internally provided with a pressing block 120, and one clamping groove 111 is in an empty state. At this time, the inserting part 210 of the supporting tool 200 is clamped into the empty clamping groove 111, and the gluing is completed; then, one side of the next magnetic steel 130 is abutted against the pressing block 120, and the other side is pressed on the bearing part 220; finally, the supporting tool 200 is pulled out to complete the adhesion of the magnetic steel 130, and the cycle is repeated.
Further, referring to fig. 2 and 5, S100, the step of pre-installing the pressing block 120 in the slot 111 of the rotor yoke 110 further includes:
and S110, correspondingly arranging the pressing blocks 120 into the clamping grooves 111 on the rotor yoke 110 in a mode of every other clamping groove 111, so that one clamping groove 111 in an empty state is arranged between any two adjacent pressing blocks 120. Therefore, in the preassembling process, half of the clamping grooves 111 are preassembled with the pressing blocks 120, and a clamping groove 111 in an empty state is arranged between every two adjacent pressing blocks 120, and at the moment, the pasting positions 112 on two sides of the clamping groove 111 in the empty state can synchronously paste the magnetic steel 130, so that the pasting efficiency of the magnetic steel 130 is improved.
Further, referring to fig. 2 and 6, step S300 of contacting one side of the magnetic steel 130 to the pasting position 112 and abutting against the pressing block 120 further includes:
s310, one side of each of the two magnetic steels 130 is respectively contacted with the two sticking positions 112 and respectively and correspondingly abutted against the two pressing blocks 120;
and S320, with the abutting position between the magnetic steel 130 and the pressing block 120 as a fulcrum, respectively and correspondingly pressing the other sides of the two magnetic steels 130 to the two supporting parts 220 on the supporting tool 200.
As can be seen, when the insertion portion 210 of the support tool 200 is inserted into the empty slot 111, the press blocks 120 are disposed on both sides of the support tool 200. At this time, one side of each of the two magnetic steels 130 may be respectively contacted with the two pasting positions 112 and respectively and correspondingly abutted against the respective pressing blocks 120; then, with the abutting position between the magnetic steel 130 and the pressing block 120 as a fulcrum, the two magnetic steels 130 are stably pressed on the two bearing portions 220 in an involution manner, so that the glue 300 is stably and uniformly spread around under the pressing action of the magnetic steel 130, and the bonding quality between the magnetic steel 130 and the rotor yoke 110 is favorably improved. When the two magnetic steels 130 are pressed on the supporting portion 220, the rotor yoke 110 is pulled out along the axial direction of the rotor yoke 110, so that the two magnetic steels 130 can be adhered at the same time, and the assembly efficiency of the rotor 100 is greatly improved.
In one embodiment, referring to fig. 7, the step of extracting the support tool 200 along the axial direction of the rotor yoke 110 in S400 includes:
along the axial direction of the rotor yoke 110, the inserting portion 210 and the supporting portion 220 are synchronously pulled away from the rotor yoke 110, so that the magnetic steel 130 is attracted to the adhering portion 112. That is, in the embodiment, when the supporting tool 200 is pulled out, the inserting portion 210 and the supporting portion 220 are synchronously pulled away in a one-step in-place manner, so that the slot 111 inserted with the inserting portion 210 is in an empty state again while one side of the magnetic steel 130 is attracted to the adhering position 112, so that the subsequent pressing block 120 can be loaded into the slot 111.
In another embodiment, referring to fig. 3, the step of extracting the support tool 200 along the axial direction of the rotor yoke 110 in S400 includes:
s410, keeping the inserting part 210 in the clamping groove 111, and drawing out the supporting part 220 along the axial direction of the rotor yoke 110 so as to suck the magnetic steel 130 on the pasting position 112;
s420, after the attachment, the insertion portion 210 is pulled out along the axial direction of the rotor yoke 110, so as to pull the support tool 200 away from the rotor yoke 110, wherein the support portion 220 can move relative to the insertion portion 210, that is, the support tool 200 is pulled away in a step-by-step manner in this embodiment. When one side of the magnetic steel 130 is pressed on the bearing portion 220, the insertion portion 210 is kept stationary in the slot 111, and the bearing portion 220 is firstly drawn out along the axial direction of the rotor yoke 110, so that the magnetic steel 130 is unsupported and attracted to the adhering portion 112, and at this time, the pressing block 120 is arranged on one side and the insertion portion 210 is arranged on the other side of the two opposite sides of the magnetic steel 130. Therefore, the situation that the installation of the subsequent pressing block 120 is influenced by extruding part of the glue 300 to flow into the clamping groove 111 when the magnetic steel 130 is sucked can be effectively avoided. Meanwhile, when the bearing part 220 is pulled away, the bearing part 220 can also take out the glue 300 overflowing to the edge of the magnetic steel 130, so that the surface of the magnetic steel 130 is kept clean and sanitary, and the stable function of the rotor 100 is ensured. In addition, the supporting tool 200 is pulled out step by step, and the rest of the inserting part 210 can also play a limiting role, so that the magnetic steel 130 is prevented from being contorted at the adhering position 112 to influence the performance of the glue 300.
The support portion 220 and the insertion portion 210 are provided to be movable relative to each other, that is, the support portion 220 is movable relative to the insertion portion 210 along the axial direction of the rotor yoke 110. To achieve the relative movement between the two, a guiding structure may be provided between the supporting portion 220 and the inserting portion 210, such as: the insertion portion 210 is provided with a guide bar extending along the axial direction of the rotor yoke 110, and the support portion 220 is provided with a guide groove matched with the guide bar; alternatively, the insertion portion 210 is provided with a guide groove extending along the axial direction of the rotor yoke 110, and the support portion 220 is provided with a guide bar engaged with the guide bar. In the step-by-step extraction, the bearing portion 220 can move relatively on the insertion portion 210 along the axial direction of the rotor yoke 110 by the guiding fit of the guide bars and the guide grooves.
It should be noted that, when there are two supporting parts 220, the two supporting parts 220 can be connected to each other, so that when the two supporting parts 220 are pulled out, the two supporting parts 220 can be conveniently pulled out at the same time. Meanwhile, in order to make the magnetic steel 130 more stably attracted, an inclined surface, an arc surface or a plurality of step surfaces can be arranged at the tail end of the bearing part 220, so that the magnetic steel 130 is ensured to be gently separated from the bearing part 220, and the magnetic steel 130 is prevented from directly impacting on the sticking position 112 at the moment of separating from the bearing part 220.
Further, in step S410, the supporting portion 220 may be designed as a multi-layer structure, such as: the support portion 220 includes a plurality of support layers sequentially stacked. When the supporting portion 220 is pulled away, the inserting portion 210 is kept still in the slot 111, and the supporting layers of each layer are sequentially pulled out from top to bottom along the axial direction of the rotor yoke 110, so that one side of the magnetic steel 130 descends on the supporting tool 200 layer by layer, and finally is attracted to the adhering position 112. Therefore, the layer-by-layer extraction mode is adopted, so that the speed of attracting the magnetic steel 130 to the pasting position 112 is slower, the buffer force is smaller, and the magnetic steel 130 is more stably pasted to the rotor yoke 110.
In an embodiment, referring to fig. 6, a supporting tool 200 is applied to any one of the above methods for assembling rotor magnetic steel, the supporting tool 200 includes an insertion portion 210 and a supporting portion 220 disposed on the insertion portion 210, the insertion portion 210 is used for being inserted into the slot 111, and the supporting portion 220 is used for supporting one side of the magnetic steel 130.
The above-mentioned support tool 200 is applied to the above-mentioned rotor magnetic steel assembling method. In the assembling process, firstly, the pressing block 120 is pre-installed in the clamping groove 111 on the rotor yoke 110, so that one of at least one group of two adjacent clamping grooves 111 has the pressing block 120, and the other clamping groove is in an empty state; then, inserting the inserting part 210 of the supporting tool 200 into the empty slot 111, and finishing the gluing on the magnetic steel 130 and/or the pasting position 112; then, one side of the magnetic steel 130 is abutted against the pressing block 120, and the pressing block 120 is used as an abutting point, and the other side is pressed against the supporting part 220 of the supporting tool 200. At this time, the magnetic steel 130 is inclined on the pasting position 112, i.e. one side is pasted on the pasting position 112 and abuts against the pressing block 120; the other side is pressed on the supporting part 220 to be in a suspension state. Then, the supporting tool 200 is pulled out along the axial direction of the rotor yoke 110, so that the suspended side of the magnetic steel 130 is sucked towards the pasting position 112, the glue 300 between the magnetic steel 130 and the pasting position 112 is flattened, the magnetic steel 130 and the rotor yoke 110 are pasted without being hindered, the air mixing is reduced, the performance of the glue 300 is exerted to the maximum extent, and the failure risk of the glue 300 is reduced. Therefore, the amount of the glue 300 between the magnetic steel 130 and the pasting position 112 does not need to be additionally increased, the waste of the glue 300 is reduced, and the assembly cost is reduced. Because one side of the magnetic steel 130 is raised by the supporting part 220 before the magnetic steel is sucked, the sucking impact force of the magnetic steel 130 on the sticking position 112 can be effectively reduced, the glue 300 is ensured to be uniformly spread, the splashing of the glue 300 is avoided, and the sticking quality of the magnetic steel 130 is improved.
Alternatively, the supporting portion 220 may be connected to the inserting portion 210 by, but not limited to, bolting, snapping, riveting, welding, bonding, integrally molding, etc.
Specifically, referring to fig. 6, the insertion portion 210 and the supporting portion 220 are an integrated structure.
Further, referring to fig. 6, there are two supporting portions 220. The two supporting portions 220 are respectively disposed on two opposite side surfaces of the insertion portion 210, so as to support the magnetic steel 130 on two sides simultaneously, which is beneficial to improving the bonding efficiency of the magnetic steel 130.
In one embodiment, referring to fig. 6, the supporting portion 220 has an engaging surface 221 and a supporting surface 222 opposite to each other. The attaching surface 221 is used for attaching to the attaching position 112, and the supporting surface 222 is used for supporting one side of the magnetic steel 130. So, utilize 221 and bearing face 222 for magnet steel 130 one side is passed through bearing portion 220 and is supported more steadily on pasting position 112, thereby is favorable to guaranteeing to paste the quality.
In one embodiment, referring to fig. 6, the support tool 200 further includes a protrusion 230, and the protrusion 230 is disposed on the insertion portion 210 for holding by hand, so as to facilitate the operator to extract the support tool 200.
Specifically, referring to fig. 6, the protrusion 230, the insertion portion 210 and the support portion 220 are an integrated structure.
In an embodiment, referring to fig. 4 and 5, a rotor 100 is prepared by any one of the above methods for assembling rotor magnetic steel. The rotor 100 includes a rotor yoke 110, a pressing block 120, and magnetic steel 130. The rotor yoke 110 is provided with a slot 111. A plurality of pockets 111 are spaced around the axis of the rotor yoke 110. An adhering position 112 for adhering the magnetic steel 130 is arranged between two adjacent clamping grooves 111. The pressing block 120 is inserted into the slot 111 to position the magnetic steel 130.
The rotor 100 is manufactured by the above rotor magnetic steel assembly method. In the assembling process, firstly, the pressing block 120 is pre-installed in the clamping groove 111 on the rotor yoke 110, so that one of at least one group of two adjacent clamping grooves 111 has the pressing block 120, and the other clamping groove is in an empty state; then, inserting the inserting part 210 of the supporting tool 200 into the empty slot 111, and finishing the gluing on the magnetic steel 130 and/or the pasting position 112; then, one side of the magnetic steel 130 is abutted against the pressing block 120, and the pressing block 120 is used as an abutting point, and the other side is pressed against the supporting part 220 of the supporting tool 200. At this time, the magnetic steel 130 is inclined on the pasting position 112, i.e. one side is pasted on the pasting position 112 and abuts against the pressing block 120; the other side is pressed on the supporting part 220 to be in a suspension state. Then, the supporting tool 200 is pulled out along the axial direction of the rotor yoke 110, so that the suspended side of the magnetic steel 130 is sucked towards the pasting position 112, the glue 300 between the magnetic steel 130 and the pasting position 112 is flattened, the magnetic steel 130 and the rotor yoke 110 are pasted without being hindered, the air mixing is reduced, the performance of the glue 300 is exerted to the maximum extent, and the failure risk of the glue 300 is reduced. Therefore, the amount of the glue 300 between the magnetic steel 130 and the pasting position 112 does not need to be additionally increased, the waste of the glue 300 is reduced, and the assembly cost is reduced. Because one side of the magnetic steel 130 is raised by the supporting part 220 before the magnetic steel is sucked, the sucking impact force of the magnetic steel 130 on the sticking position 112 can be effectively reduced, the glue 300 is ensured to be uniformly spread, the splashing of the glue 300 is avoided, and the sticking quality of the magnetic steel 130 is improved.
The pasting portion 112 and the engaging groove 111 are both provided to extend along the axial direction of the rotor yoke 110. In addition, in order to improve the combining force between the pressing block 120 and the clamping groove 111, the clamping groove 111 and the pressing block 120 may be designed into a dovetail structure which is matched with each other.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. The rotor magnetic steel assembling method is characterized by comprising the following steps of:
pre-installing a pressing block in the clamping grooves on the rotor yoke, so that one of at least two adjacent clamping grooves is provided with the pressing block, and the other clamping groove is in an empty state, wherein a sticking position is arranged between any two adjacent clamping grooves;
inserting an insertion part on the supporting tool into a clamping groove which is in an empty state and is adjacent to the pressing block, and gluing the magnetic steel and/or a gluing position between the pressing block and the supporting tool;
one side of the magnetic steel is in contact with the sticking position and is abutted against the pressing block, and the other side of the magnetic steel is pressed to the bearing part of the bearing tool;
drawing out the supporting tool along the axial direction of the rotor yoke so as to suck the magnetic steel on the sticking position;
and after the magnetic steel is drawn out, the pressing block is arranged in the clamping groove after the supporting tool is drawn out, and the steps are repeatedly executed to finish the pasting of all the magnetic steel.
2. The method for assembling rotor magnetic steel according to claim 1, wherein the step of pre-assembling the pressing block in the slot of the rotor yoke further includes:
and correspondingly arranging the pressing blocks into the clamping grooves on the rotor yoke in a manner of every other clamping groove, so that a clamping groove in an empty state is arranged between any two adjacent pressing blocks.
3. The rotor magnetic steel assembling method according to claim 2, wherein the step of bringing one side of the magnetic steel into contact with the pasting position and abutting against the pressing block further includes:
one side of each of the two magnetic steels is respectively contacted with the two sticking positions and respectively and correspondingly abutted against the two pressing blocks;
and with the abutting position between the magnetic steel and the pressing block as a fulcrum, the other sides of the two magnetic steels are respectively and correspondingly pressed to the two bearing parts on the bearing tool.
4. The rotor magnetic steel assembling method according to claim 1, wherein the step of extracting the support tool in the axial direction of the rotor yoke includes:
and along the axial direction of the rotor yoke, the inserting part and the bearing part are synchronously pulled away from the rotor yoke, so that the magnetic steel is sucked on the sticking position.
5. The rotor magnetic steel assembling method according to claim 1, wherein the step of extracting the support tool in the axial direction of the rotor yoke includes:
keeping the inserting part in the clamping groove still, and drawing out the bearing part along the axial direction of the rotor yoke so as to suck the magnetic steel on the sticking position;
after the lamination, the insertion part is drawn out along the axis direction of the rotor yoke, so that the supporting tool is drawn out of the rotor yoke, wherein the supporting part can move relative to the insertion part.
6. A supporting tool is applied to the rotor magnetic steel assembling method according to any one of claims 1 to 5, and comprises an inserting portion and a supporting portion arranged on the inserting portion, wherein the inserting portion is used for being inserted into a clamping groove, and the supporting portion is used for supporting one side of the magnetic steel.
7. The support tool of claim 6, wherein the number of the support parts is two, and the two support parts are respectively arranged on two opposite side surfaces of the insertion part.
8. The supporting tool according to claim 6, wherein the supporting portion has a bonding surface and a supporting surface which are opposite to each other, the bonding surface is used for bonding with the bonding position, and the supporting surface is used for supporting one side of the magnetic steel.
9. The support tool of claim 6, wherein the insertion portion and the support portion are of an integrated structure; and/or the presence of a gas in the gas,
the supporting tool further comprises a convex portion, and the convex portion is arranged on the inserting portion and is used for being held by a hand.
10. A rotor is characterized by being prepared by the rotor magnetic steel assembling method according to any one of claims 1 to 5, the rotor comprises a rotor yoke, a pressing block and magnetic steel, a clamping groove is formed in the rotor yoke, the clamping grooves are distributed at intervals around the axis of the rotor yoke, a pasting position for the magnetic steel to be pasted is arranged between every two adjacent clamping grooves, and the pressing block is inserted into the clamping grooves to position the magnetic steel.
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