CN112217349B - Permanent magnet motor rotor assembling jig and method thereof - Google Patents
Permanent magnet motor rotor assembling jig and method thereof Download PDFInfo
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- CN112217349B CN112217349B CN201910619163.0A CN201910619163A CN112217349B CN 112217349 B CN112217349 B CN 112217349B CN 201910619163 A CN201910619163 A CN 201910619163A CN 112217349 B CN112217349 B CN 112217349B
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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
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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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Abstract
The invention provides a permanent magnet motor rotor assembly jig and a method thereof, wherein the permanent magnet motor rotor assembly jig is used for a rotating shaft to penetrate through and be assembled on a first end part rotor iron core and a second end part rotor iron core along an assembly direction, and comprises a first end part positioning assembly, a plurality of positioning connecting pieces and a second end part positioning assembly. The first end positioning assembly is used for fixing the first end rotor core. The second end positioning component is used for fixing the second end rotor core. The positioning connecting piece is connected with the first end positioning component and the second end positioning component. Wherein, a first projection central axis of each first positioning piece of the first end positioning component along the assembling direction deviates from a second projection central axis of each second positioning piece of the second end positioning component along the assembling direction.
Description
Technical Field
The present invention relates to a jig and a method thereof, and more particularly, to a permanent magnet motor rotor assembling jig and a method thereof.
Background
In order to reduce the cogging torque, the rotor core is usually divided into several sections, and each section of the rotor core is rotated by a specific angle, so that the cogging torque of each section of the rotor core is approximately offset, thereby achieving the effect of reducing the cogging torque.
Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a rotating shaft and a key in the prior art; FIG. 2 is a schematic view showing a prior art rotary shaft, a key and a first rotor core; and, FIG. 3 is a schematic view showing a prior art segmented chute rotor assembly. As shown, a sectional chute rotor assembly PA1 includes a shaft PA11, a plurality of tabs PA12 (only one of which is shown), and a plurality of rotor cores PA13a, PA13b, PA13 c.
The rotating shaft PA11 has a plurality of key slots PA111 (only one of them is shown here) along a specific angle. The key PA12 is inserted into the key groove PA 111. The rotor cores PA13a, PA13b, and PA13c have a plurality of rotor slots PA131a, PA131b, and PA131c formed in the outer circumferential surface thereof, and have an engaging slot (not shown) formed in the inner circumferential surface thereof, the engaging slot corresponding to the tab PA12, and the engaging slot is engaged with the tab PA 12.
During the manufacturing process, the first key PA12 is first driven into the first key slot PA111, and the rotating shaft PA11 is inserted into the rotor core PA13 a. Next, the second key PA12 is driven into the second key groove PA111, and the rotating shaft PA11 is inserted into the rotor core PA13 b. Finally, the third key PA12 is driven into the third key groove PA111, and the rotating shaft PA11 is inserted into the rotor core PA13 c. Because the three keyways PA111 are not located on the same vertical line, the rotor slots PA131a, PA131b, PA131c are not located on the same vertical line, but instead form an angle with each other to form a segmented chute rotor assembly PA 1.
However, the manufacturing process using the key PA12 and the key groove PA111 is complicated and time-consuming, and the key groove PA111 and the engagement groove are opened to increase the manufacturing cost. Moreover, the design of the key PA12 and the key slot PA111 usually makes the assembled rotor cores PA13a, PA13b and PA13c not detachable, so that the maintenance cannot be performed, and if the segmented chute rotor assembly PA1 is damaged, only the whole segmented chute rotor assembly PA1 can be replaced, and the rotor cores PA13a, PA13b, PA13c, the key PA12 and the key slot PA111 cannot be detached for inspection and maintenance. In addition, the opening of the engaging grooves may cause unbalance of the rotor cores PA13a, PA13b, and PA13 c.
Disclosure of Invention
In view of the fact that in the prior art, the processes of using the convex key and the key slot are complicated, time-consuming and cost-increasing, and the assembled rotor core cannot be disassembled to be inspected and maintained, and the clamping slot can cause unbalance of the rotor core. A primary object of the present invention is to provide a permanent magnet motor rotor assembly jig for solving at least one problem in the prior art
The present invention is directed to solve the problems of the prior art, and a necessary technical means of the present invention is to provide a permanent magnet motor rotor assembly jig, which is used for a rotating shaft to penetrate through and be assembled to a first end rotor core and a second end rotor core along an assembly direction, and includes a first end positioning assembly, a plurality of positioning connectors, and a second end positioning assembly.
The first end positioning assembly is provided with at least one first positioning piece, is provided with a first through hole for the rotating shaft to penetrate through, can be assembled and connected with the first end rotor core, and is used for being inserted into at least one of the first rotor through holes of the first end rotor core so as to fix the first end rotor core. The positioning connecting piece is connected with the first end positioning component. The second end positioning component is provided with at least one second positioning piece, is provided with a second through hole corresponding to the first through hole, can be assembled and connected with the second end rotor core and the positioning connecting piece, and is used for being inserted into at least one of the second rotor through holes of the second end rotor core so as to fix the second end rotor core.
Wherein, a first projection central axis of each first positioning piece along the assembling direction deviates from a second projection central axis of each second positioning piece along the assembling direction.
Based on the above-mentioned necessary technical means, an accessory technical means derived from the present invention is to make the number of the first positioning members in the permanent magnet motor rotor assembly jig two.
Based on the above-mentioned necessary technical means, an accessory technical means derived from the present invention is to make two first positioning members of the permanent magnet motor rotor assembly jig symmetrical to the first through hole, and the connection line forms a first reference line.
Based on the above-mentioned necessary technical means, an accessory technical means derived from the present invention is to make the number of the second positioning elements in the permanent magnet motor rotor assembly jig two.
Based on the above-mentioned necessary technical means, an accessory technical means derived from the present invention is to make two second positioning elements of the permanent magnet motor rotor assembly jig symmetrical to the second through hole and connected to form a second reference line, and when the first reference line is projected along the assembly direction, an included angle is formed between the first reference line and the second reference line.
Based on the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to provide a permanent magnet motor rotor assembly jig, further comprising at least one intermediate positioning assembly, each intermediate positioning assembly having at least one intermediate positioning member and being provided with an intermediate through hole corresponding to the first through hole and the second through hole, and being capable of being assembled and connected to an intermediate rotor core and a positioning connection member, the intermediate positioning member being configured to be inserted into at least one of the plurality of intermediate rotor through holes of the intermediate rotor core to fix the intermediate rotor core.
Based on the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make at least one of the intermediate positioning members of at least one of the intermediate positioning assemblies in the permanent magnet motor rotor assembly jig, the number of which is two.
Based on the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make two middle positioning pieces in the permanent magnet motor rotor assembly jig symmetrical to the middle through hole.
The present invention is to solve the problems of the prior art, and the necessary technical means adopted is to provide a permanent magnet motor rotor assembling method, which is implemented by using the permanent magnet motor rotor assembling jig, and comprises the following steps: (a) connecting the first end rotor core by using a first end positioning component, and connecting the first end positioning component by using a positioning connecting piece; (b) the first end rotor iron core is arranged in a penetrating manner along the assembling direction by utilizing the rotating shaft; (c) connecting the second end rotor core by using the second end positioning component; (d) connecting the positioning connecting piece by using the second end positioning component; (e) the second end rotor core is arranged in a penetrating manner along the assembling direction by utilizing the rotating shaft; and (f) removing the first end positioning assembly from the first end rotor core and removing the second end positioning assembly from the second end rotor core, so that the rotating shaft is assembled on the first end rotor core and the second end rotor core.
Based on the above-mentioned necessary technical means, an accessory technical means derived from the present invention is a method for assembling a permanent magnet motor rotor, wherein the method further comprises the following steps between the step (b) and the step (c): (b1) connecting a middle rotor iron core by using a middle positioning component; (b2) the middle positioning component is connected with the positioning connecting piece, so that the rotating shaft penetrates through the middle rotor core along the assembling direction, and the front section of the rotating shaft penetrates through the middle rotor core; and, (b3) removing the intermediate positioning assembly from the intermediate rotor core.
In view of the above, the permanent magnet motor rotor assembly jig and the method thereof provided by the present invention utilize the first end positioning assembly, the positioning connecting member and the second end positioning assembly to achieve the effect that the rotating shaft can be inserted and assembled in the first end rotor core and the second end rotor core without using a convex key and forming a key groove, thereby reducing the manufacturing cost, reducing the difficulty of the manufacturing process and increasing the maintainability.
Drawings
FIG. 1 is a schematic view showing a rotary shaft and a convex key of the prior art;
FIG. 2 is a schematic view showing a prior art rotary shaft, a key and a first rotor core;
FIG. 3 is a schematic view showing a prior art segmented chute rotor assembly;
fig. 4 is a perspective view showing a permanent magnet motor rotor assembly jig according to a first embodiment of the present invention;
fig. 5 is a perspective view showing the rotating shaft and the rotor core;
fig. 6 is a schematic view illustrating an assembly process of the permanent magnet motor rotor assembly jig according to the first embodiment of the invention;
FIG. 7 is a schematic view showing the assembled segmented chute rotor assembly of the first embodiment of the present invention;
fig. 8 is a perspective view showing a permanent magnet motor rotor assembly jig according to a second embodiment of the present invention;
fig. 9 to 11 are schematic views illustrating an assembly process of a permanent magnet motor rotor assembly jig according to a second embodiment of the present invention; and
FIG. 12 is a schematic view showing the assembled segmented chute rotor assembly of the second embodiment of the present invention.
PA 1: segmented chute rotor assembly
PA 11: rotating shaft
PA 111: key groove
PA 12: convex key
PA13a, PA13b, PA13 c: rotor core
PA131a, PA131b, PA131 c: rotor slot
1. 1 a: permanent magnet motor rotor assembling jig
11: first end positioning assembly
111: first positioning piece
112: the first through hole
113: a first positioning hole
12: positioning connector
13. 13 a: second end positioning assembly
131. 131 a: second positioning piece
132. 132 a: a second through hole
133. 133 a: second positioning hole
14 a: middle positioning assembly
141 a: middle positioning piece
142 a: middle through hole
143 a: middle positioning hole
2. 2 a: segmented chute rotor assembly
21: rotating shaft
211: front section of rotating shaft
22: first end rotor core
223: first rotor slot
23. 23 a: second end rotor core
231: through hole of second iron core
232: through hole of second rotor
233. 233 a: second rotor slot
24 a: intermediate rotor core
243 a: intermediate rotor slot
D: direction of assembly
L1: first reference line
L2, L2 a: second reference line
L3 a: third reference line
X1: first projection center axis
X2, X2 a: second projection center axis
X3 a: third projection center axis
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. Advantages and features of the present invention will become apparent from the following description and claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Referring to fig. 4 to 5, fig. 4 is a perspective view illustrating a permanent magnet motor rotor assembly fixture according to a first embodiment of the present invention; and, fig. 5 is a perspective view showing the rotating shaft and the rotor core. As shown in the drawings, a permanent magnet motor rotor assembly jig 1 includes a first end positioning assembly 11, a plurality of positioning connectors 12 (two are drawn and one is indicated here), and a second end positioning assembly 13.
The permanent magnet motor rotor assembly fixture 1 is used for a rotating shaft 21 to penetrate through and be assembled on a first end rotor core 22 (shown in fig. 6) and a second end rotor core 23 along an assembly direction D (shown in fig. 6). The shaft 21 has a front shaft section 211, and the second end rotor core 23 has a second core through hole 231 corresponding to the shaft 21, a plurality of second rotor through holes 232 (only one of which is shown), and a plurality of second rotor slots 233 (only one of which is shown), wherein the second rotor slots 233 are located on the outer peripheral surface of the second end rotor core 23. The first end rotor core 22 has the same structure as the second end rotor core 23, and is also provided with a first core through hole and a plurality of first rotor through holes, and the plurality of first rotor slots are located on the outer circumferential surface of the first end rotor core 22.
The first end positioning assembly 11 has at least one first positioning member and defines a first through hole 112 for the shaft 21 to pass through and a plurality of first positioning holes 113 corresponding to the positioning connecting members 12. In this embodiment, the first end positioning assembly 11 has two first positioning elements 111 and is of a cylindrical structure, and the two first positioning elements 111 are inserted into the two first rotor through holes of the first end rotor core 22 to fix the first end rotor core 22, so that the first end rotor core 22 and the first end positioning assembly 11 do not rotate relatively, but not limited thereto. The number of the first positioning members 111 may be one, and the first positioning members may be in a non-circular tube state, or may be inserted into the first rotor through hole to fix the first end rotor core 22.
The second end positioning assembly 13 is similar to the first end positioning assembly 11, and only differs in the position of the second positioning member 131. The second through hole 132 corresponds to the first through hole 112, and the second positioning hole 133 corresponds to the first positioning hole 113.
The two first projection central axes X1 of the two first positioning elements 111 along the assembling direction D are offset from the two second projection central axes X2 of the two second positioning elements 131 along the assembling direction D. The first positioning element 111 and the second positioning element 131 are respectively inserted into the first rotor through hole and the second rotor through hole 232, so that the first rotor through hole and the second rotor through hole 232 can deviate and be dislocated.
In the embodiment, the two first positioning elements 111 are symmetrical to the first through hole 112, and the two second positioning elements 131 are symmetrical to the second through hole 132, which means that the distances between the two positioning elements and the symmetrical point are equal, so that the definition can be further defined. When the first reference line L1 and the second reference line L2 are projected to the same plane along the assembly direction D, which is projected to the second end rotor core 23, an included angle is included between the first reference line L1 and the second reference line L2, and the included angle is between about 1 to 45 degrees, which indicates that the first reference line L1 and the second reference line L2 do not coincide.
Next, please refer to fig. 4 to 7, wherein fig. 6 is a schematic diagram illustrating an assembly process of the permanent magnet motor rotor assembly fixture according to the first embodiment of the present invention; and, FIG. 7 is a schematic view showing the assembled segmented chute rotor assembly of the first embodiment of the present invention. As shown in the figure, the first end positioning component 11 fixes the first end rotor core 22, the second end positioning component 13 fixes the second end rotor core 23, and the positioning connection member 12 connects the first end positioning component 11 and the second end positioning component 13, so that the first end positioning component 11 and the second end positioning component 13 do not rotate relatively.
In the embodiment, the first end positioning assembly 11 and the second end positioning assembly 13 are respectively provided with a first positioning hole 113 and a second positioning hole 133, and the positioning connection member 12 is inserted and fixed by a tight fit manner, but not limited thereto. The first end positioning component 11 and the second end positioning component 13 can also be fixed to the positioning connecting member 12 by at least one locking element. The locking element can be a screw, a nut, a quick release structure, etc.
The rotating shaft 21 is operatively disposed through the first through hole 112, the first end rotor core 22, the second end rotor core 23 and the second through hole 132 in sequence along the assembling direction D, and assembled to the first end rotor core 22 and the second end rotor core 23. Since the shaft 21 does not have the key PA12 and the key groove PA111 as in the prior art, the shaft 21 can be assembled to the first end rotor core 22 and the second end rotor core 23 by interference, gluing, knurling, or other assembling methods.
After the rotating shaft 21 is assembled to the first end rotor core 22 and the second end rotor core 23, a segmented skewed slot rotor assembly 2 is formed, and it can be seen from the drawings that the first end rotor core 22 and the second end rotor core 23 are segmented, and the first rotor slot 223 and the second rotor slot 233 extend obliquely.
Finally, please refer to fig. 5 and 8 to 12, wherein fig. 8 is a perspective view illustrating a permanent magnet motor rotor assembly fixture according to a second embodiment of the present invention; fig. 9 to 11 are schematic views illustrating an assembly process of a permanent magnet motor rotor assembly jig according to a second embodiment of the present invention; and, FIG. 12 is a schematic view showing an assembled segmented chute rotor assembly according to a second embodiment of the present invention. As shown in the drawings, a permanent magnet motor rotor assembly fixture 1a includes a first end positioning component 11, a plurality of positioning connectors 12 (two are drawn and indicated herein by one), a second end positioning component 13a and at least one middle positioning component 14a (one is drawn herein by one).
The difference between the permanent magnet motor rotor assembly fixture 1a of the present embodiment and the permanent magnet motor rotor assembly fixture 1 of the first embodiment is the second end positioning component 13a and the middle positioning component 14a, and the rest of the same parts will not be described in detail.
The second end positioning assembly 13a has a similar structure to the first end positioning assembly 11, and only differs in the position of the second positioning member 131 a. The second through hole 132a corresponds to the first through hole 112, and the second positioning hole 133a corresponds to the first positioning hole 113. Similarly, the middle through hole 142a of the middle positioning component 14a corresponds to the first through hole 112, and the middle positioning hole 143a corresponds to the first positioning hole 113. The middle positioning assembly 14a is used to fix a middle rotor core 24a, and the structure of the middle rotor core 24a is the same as that of the first end rotor core 22.
The two first projection central axes X1 of the two first positioning elements 111 along the assembling direction D, the two second projection central axes X2a of the two second positioning elements 131a along the assembling direction D, and the two third projection central axes X3a of the two intermediate positioning elements 141a along the assembling direction D are offset and do not coincide with each other.
The connecting line of the second positioning members 131a forms a second reference line L2a, and the connecting line of the intermediate positioning members 141a forms a third reference line L3 a. As in the first embodiment, the first reference line L1, the second reference line L2a and the third reference line L3a are projected to the same plane, and form an angle therebetween, which means that the first reference line L1, the second reference line L2a and the third reference line L3a are offset from each other and do not coincide with each other, as shown by three dotted lines on the second end rotor core 23 in fig. 5.
The first end positioning assembly 11 fixes the first end rotor core 22, the middle positioning assembly 14a fixes the middle rotor core 24a, and the positioning connector 12 connects the first end positioning assembly 11 and the middle positioning assembly 14a, so that the first end positioning assembly 11 and the middle positioning assembly 14a do not rotate relatively. The rotating shaft 21 is operatively inserted through the first through hole 112, the first end rotor core 22, the middle rotor core 24a and the middle through hole 142a in sequence along the assembling direction D. It should be noted that, in the present embodiment, the number of the rotor cores exceeds two, so that the rotating shaft 21 only extends out of the front rotating shaft segment 211 along the assembling direction D.
Next, the intermediate positioning member 14a is detached from the intermediate rotor core 24a and the positioning link 12, and the second end positioning member 13a is fixed to the second end rotor core 23a, and then is connected to the positioning link 12, so that the second end rotor core 23a contacts the intermediate rotor core 24 a.
The rotating shaft 21 is further operated to pass through the second end rotor core 23a along the assembling direction D, and further pass through the second through hole 132 a. After the rotating shaft 21 is inserted into the first end rotor core 22, the middle rotor core 24a and the second end rotor core 23a, the first end positioning component 11 and the second end positioning component 13a are respectively removed from the first end rotor core 22 and the second end rotor core 23a, thereby completing the assembly of the segmented chute rotor assembly 2 a. As shown in fig. 12, the segmented chute rotor assembly 2a has three segments of the first end rotor core 22, the middle rotor core 24a and the second end rotor core 23a, and the first rotor groove 223, the middle rotor groove 243a and the second rotor groove 233a extend obliquely.
In the embodiment, one middle positioning component 14a is used for illustration, but a plurality of middle positioning components 14a can still be implemented in the same manner, that is, the invention is drawn to a common two-stage rotor core and a three-stage rotor core in the embodiment, but not only, the invention can be extended to assembling a multi-stage (more than three stages) rotor core. As long as at least two of the third projection central axes X3a of the middle positioning members 141a of each middle positioning assembly 14a along the assembling direction D are offset from each other, preferably, each of the third projection central axes X3a is offset from each other, and is also offset from the first projection central axis X1 and the second projection central axis X2 a. In addition, as for the assembling manner of the multi-stage rotor core, as long as the rotor core penetrated by the rotating shaft 21 is fixed by the middle positioning component 14a, only the front section 211 of the rotating shaft is extended out, and then the middle positioning component 14a is removed until the rotor core penetrated by the rotating shaft 21 is fixed by the second end rotor core 23a, and the rotor core penetrates to the bottom.
It should be noted that, the end portion is taken as the basis of the naming of the present invention, and referring to fig. 4 and 8, the second end positioning element 13 and the middle positioning element 14a have the same actual structure, but in fig. 8, because there are three positioning elements, the middle positioning element 14a is not the first end portion nor the second end portion, even though the structure is the same as that of the second end positioning element 13, the second end positioning element 13a and the middle positioning element 14a cannot be named in the second embodiment. Therefore, no matter how many intermediate positioning assemblies 14a are, the positioning assemblies at the first end and the second end are named as the first end positioning assembly and the second end positioning assembly, and the other positioning assemblies between the first end positioning assembly and the second end positioning assembly are all intermediate positioning assemblies.
In all embodiments provided by the present invention, since the positioning members (the first positioning member, the second positioning member, and the middle positioning member) are staggered from each other, the structures of the rotor cores (the first end rotor core, the second end rotor core, and the middle rotor core) may be the same.
In the embodiment of the present invention, the rotor core of the Surface Permanent Magnet (SPM) motor is drawn, but the present invention is not limited to this, and the present invention may also be used to assemble a rotor core of an Interior Permanent Magnet (IPM) motor.
In addition, the present invention provides a permanent magnet motor rotor assembly method, which is implemented by using the permanent magnet motor rotor assembly jig provided in the first embodiment or the second embodiment, and includes the following steps S101 to S106.
Step S101: the first end rotor core is connected by the first end positioning component, and the first end positioning component is connected by the positioning connecting pieces. .
Step S102: the first end rotor core is penetrated along the assembling direction by the rotating shaft.
Step S103: and connecting the second end rotor core by using the second end positioning component.
Step S104: the second end positioning component is used to connect the positioning connectors.
Step S105: the second end rotor core is penetrated along the assembling direction by the rotating shaft.
Step S106: and removing the first end positioning component from the first end rotor core and removing the second end positioning component from the second end rotor core, so that the rotating shaft is assembled on the first end rotor core and the second end rotor core.
The above steps S101 to S106 are shown in fig. 6 and 7, and the two actions in step S101 are not limited in execution sequence. In step S106, the execution sequence of the first end positioning element being removed from the first end rotor core and the second end positioning element being removed from the second end rotor core is not limited. If the number of the rotor cores is only two, the steps S102 and S105 may be performed after the step S104.
The following steps S201 to S203 may also be included between step S102 and step S103.
Step S201: an intermediate positioning component is used to connect an intermediate rotor core.
Step S202: the middle positioning component is used for connecting the positioning connecting pieces, so that the rotating shaft penetrates through the first end rotor core and the middle rotor core along the assembling direction, and the front section of the rotating shaft penetrates through the middle rotor core.
Step S203: and removing the middle positioning component from the middle rotor core.
The steps S201 to S203 are shown in fig. 9 and fig. 10.
In summary, the permanent magnet motor rotor assembly fixture and the method thereof provided by the present invention utilize the first end positioning assembly, the positioning connecting member and the second end positioning assembly for the rotating shaft to penetrate and be assembled on the first end rotor core and the second end rotor core. Compared with the convex key and the key slot in the prior art, the permanent magnet motor rotor assembly jig and the method thereof provided by the invention can reduce the manufacturing cost, reduce the difficulty of the manufacturing process, and increase the maintainability because the rotor iron core is detachable. In addition, the rotor core is not provided with a clamping groove corresponding to the convex key, and the unbalance of the rotor core can be reduced.
The foregoing detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and not to limit the scope of the invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
Claims (10)
1. The utility model provides a permanent magnet motor rotor equipment tool for supply the pivot to wear to establish and assemble in first end rotor core and second end rotor core along the equipment direction, and contain:
a first end positioning assembly having at least one first positioning element and a first through hole for the rotation shaft to pass through, and being assembled to the first end rotor core, the at least one first positioning element being inserted into at least one of the first rotor through holes of the first end rotor core to fix the first end rotor core;
a plurality of positioning links linking the first end positioning assemblies; and
a second end positioning assembly having at least one second positioning element and a second through hole corresponding to the first through hole, and being assembled to the second end rotor core and the plurality of positioning connection members, wherein the at least one second positioning element is inserted into at least one of the plurality of second rotor through holes of the second end rotor core to fix the second end rotor core;
when the plurality of positioning connectors are connected to the first end positioning assembly and the second end positioning assembly, a first projection central axis of each of the at least one first positioning element along the assembling direction is deviated from a second projection central axis of each of the at least one second positioning element along the assembling direction.
2. The permanent magnet motor rotor assembly jig according to claim 1, wherein the number of the at least one first positioning member is two.
3. The permanent magnet motor rotor assembly jig according to claim 2, wherein the two first positioning members are symmetrical to the first through hole, and a connection line forms a first reference line.
4. The assembly jig for a rotor of a permanent magnet motor according to claim 3, wherein the number of the at least one second positioning member is two.
5. The permanent magnet motor rotor assembly jig according to claim 4, wherein the two second positioning members are symmetrical to the second through hole and connected to form a second reference line, and an included angle is formed between the first reference line and the second reference line when the first reference line is projected along the assembly direction.
6. The permanent magnet motor rotor assembly fixture according to claim 1, further comprising at least one intermediate positioning element, each of the at least one intermediate positioning element having at least one intermediate positioning element with an intermediate through hole corresponding to the first through hole and the second through hole and being assembled to the intermediate rotor core and the plurality of positioning connectors, the at least one intermediate positioning element being inserted into at least one of the plurality of intermediate rotor through holes of the intermediate rotor core to fix the intermediate rotor core.
7. The permanent magnet motor rotor assembly jig of claim 6, wherein the number of the at least one intermediate positioning member of at least one of the at least one intermediate positioning member is two.
8. The permanent magnet motor rotor assembly jig according to claim 7, wherein the two middle positioning pieces are symmetrical to the middle through hole.
9. A permanent magnet motor rotor assembly method implemented by the permanent magnet motor rotor assembly jig according to claim 1, comprising the steps of:
(a) coupling the first end rotor core with the first end positioning assembly and coupling the first end positioning assembly with the plurality of positioning couplings;
(b) penetrating the first end rotor core along the assembling direction by using the rotating shaft;
(c) connecting the second end rotor core with the second end positioning assembly;
(d) coupling the plurality of positioning links using the second end positioning assembly;
(e) penetrating the second end rotor core along the assembling direction by using the rotating shaft; and
(f) and removing the first end positioning assembly from the first end rotor core and removing the second end positioning assembly from the second end rotor core, so that the rotating shaft is assembled on the first end rotor core and the second end rotor core.
10. The permanent magnet motor rotor assembly method according to claim 9, wherein between the step (b) and the step (c), further comprising the steps of:
(b1) connecting the middle rotor core by using a middle positioning component;
(b2) connecting the plurality of positioning connecting pieces by using the middle positioning assembly, so that the rotating shaft penetrates through the middle rotor core along the assembling direction, and the front section of the rotating shaft penetrates through the middle rotor core; and
(b3) and removing the middle positioning assembly from the middle rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619163.0A CN112217349B (en) | 2019-07-10 | 2019-07-10 | Permanent magnet motor rotor assembling jig and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619163.0A CN112217349B (en) | 2019-07-10 | 2019-07-10 | Permanent magnet motor rotor assembling jig and method thereof |
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| CN112217349A CN112217349A (en) | 2021-01-12 |
| CN112217349B true CN112217349B (en) | 2021-09-28 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817937U (en) * | 2012-08-01 | 2013-03-20 | 德昌电机(深圳)有限公司 | Permanent magnet rotor and permanent magnet motor with such rotor |
| CN203761224U (en) * | 2014-03-06 | 2014-08-06 | 苏州汇川技术有限公司 | Permanent magnet motor rotor assembling structure |
| CN203774914U (en) * | 2014-02-10 | 2014-08-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent-magnetic rotor |
| CN204597732U (en) * | 2015-05-18 | 2015-08-26 | 苏州汇川技术有限公司 | A kind of rotor assembly structure |
| EP3047560A1 (en) * | 2013-09-16 | 2016-07-27 | Mahle International GmbH | Rotor for an electric motor |
| CN107070124A (en) * | 2017-04-28 | 2017-08-18 | 日本电产增成机器装置(浙江)有限公司 | Automatic rotor iron core assembling device and the motor manufacturing equipment for possessing the device |
| CN206506369U (en) * | 2016-12-29 | 2017-09-19 | 台州深度新能源科技有限公司 | A kind of permanent magnet machine rotor of step skewed pole |
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2019
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Patent Citations (7)
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| CN202817937U (en) * | 2012-08-01 | 2013-03-20 | 德昌电机(深圳)有限公司 | Permanent magnet rotor and permanent magnet motor with such rotor |
| EP3047560A1 (en) * | 2013-09-16 | 2016-07-27 | Mahle International GmbH | Rotor for an electric motor |
| CN203774914U (en) * | 2014-02-10 | 2014-08-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent-magnetic rotor |
| CN203761224U (en) * | 2014-03-06 | 2014-08-06 | 苏州汇川技术有限公司 | Permanent magnet motor rotor assembling structure |
| CN204597732U (en) * | 2015-05-18 | 2015-08-26 | 苏州汇川技术有限公司 | A kind of rotor assembly structure |
| CN206506369U (en) * | 2016-12-29 | 2017-09-19 | 台州深度新能源科技有限公司 | A kind of permanent magnet machine rotor of step skewed pole |
| CN107070124A (en) * | 2017-04-28 | 2017-08-18 | 日本电产增成机器装置(浙江)有限公司 | Automatic rotor iron core assembling device and the motor manufacturing equipment for possessing the device |
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|---|---|
| CN112217349A (en) | 2021-01-12 |
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