阅读说明：本技术 一种动平衡校正辅助装置及动平衡校正设备 (Dynamic balance correction auxiliary device and dynamic balance correction equipment ) 是由 唐林 朱绍轩 肖胜宇 孙伟力 陈彬 杨国蟒 王金龙 张志东 宋云逸 于 2019-11-18 设计创作，主要内容包括：本发明涉及动平衡测试的技术领域,具体涉及一种动平衡校正辅助装置及动平衡校正设备。本发明提供的动平衡校正辅助装置,包括：定子结构,适于为转子结构转动提供驱动力；固定结构,包括安装定子结构的第一安装位,及适于安装待校正结构的第二安装位,待校正结构至少包括转子结构。通过设置固定结构,固定结构包括安装定子结构的第一安装位和适于安装待校正结构的第二安装位,即是将定子结构与待校正结构均安装至固定结构上,定子结构仅需对转子结构的转动提供驱动力即可,在对待校正结构的动平衡校正过程中,无需对定子结构进行改进,也无需在校正过程中更换定子结构,提高了校正效率。(The invention relates to the technical field of dynamic balance testing, in particular to a dynamic balance correction auxiliary device and dynamic balance correction equipment. The invention provides a dynamic balance correction auxiliary device, comprising: a stator structure adapted to provide a driving force for rotation of the rotor structure; the fixing structure comprises a first mounting position for mounting the stator structure and a second mounting position suitable for mounting the structure to be corrected, and the structure to be corrected at least comprises a rotor structure. Through setting up fixed knot and constructing, fixed knot constructs including the first installation position of installation stator structure and is suitable for the installation to treat the second installation position of rectifying the structure, promptly with stator structure and treat that the structure all installs to fixed knot construct on, stator structure only need to rotor structure's rotation provide drive power can, treat the dynamic balance of rectifying the structure and rectify the in-process, need not to improve stator structure, also need not to change stator structure at the correction in-process, improved and rectified efficiency.)

1. A dynamic balance correction assistance device, comprising:

a stator structure (1) adapted to provide a driving force for rotation of the rotor structure (4);

-a fixed structure comprising a first mounting location for mounting said stator structure (1), and a second mounting location adapted to mount a structure to be corrected comprising at least said rotor structure (4); or the structure to be corrected comprises an impeller (5), and the impeller (5) is driven by the rotor structure (4) to rotate.

2. The dynamic balance correction auxiliary device according to claim 1, wherein the fixing structure comprises a fixing body (2), the first mounting position and the second mounting position are arranged on the fixing body (2), one side of the fixing body (2) is fixedly connected with the stator structure (1), and the other side is suitable for fixedly connecting with the structure to be corrected.

3. The dynamic balance correction auxiliary device according to claim 2, wherein an installation space is provided on the fixing main body (2), two sides of the installation space are respectively and fixedly connected with the stator structure (1) and the structure to be corrected, and the installation space is suitable for penetrating through the rotating shaft (6) of the rotor structure (4).

4. The dynamic balance correction assistance device according to claim 3, characterized in that the mounting space is a mounting groove (3).

5. The dynamic balance correction auxiliary device according to claim 3, characterized in that the first mounting location is snap-fitted with the stator structure (1).

6. The dynamic balance correction assistance device of claim 5, wherein the first mounting location comprises:

the positioning grooves (7) are arranged on the fixed main body (2), positioned on two sides of the installation space and communicated with the installation space;

at least one limiting structure is arranged on the groove wall of the positioning groove (7), and a limiting bulge (8) or a limiting groove is arranged on the limiting structure;

the two ends of a stator core (13) of the stator structure (1) are respectively connected with at least one first support (14), and a support groove (9) or a support protrusion which is connected with the limiting protrusion (8) or the limiting groove in a matched mode is arranged on the first support (14).

7. The dynamic balance correction auxiliary device according to claim 6, characterized in that two protrusions (10) are provided on the fixing body (2), and the first mounting position is provided on the protrusions (10).

8. The dynamic balance correction assistance device according to any one of claims 2 to 7, characterized in that the stationary body (2) and the rotor structure (4) are connected by a threaded connection.

9. The dynamic balance correction auxiliary device according to claim 8, wherein a second bracket (11) is connected to the outside of the bearing mounting structure (20) of the rotor structure (4), at least one first through hole (12) is correspondingly formed in the fixing main body (2) and the second bracket (11), and the first through hole (12) is suitable for the threaded connection piece to penetrate through.

10. The dynamic balance correction auxiliary device according to claim 9, characterized in that the number of the first through holes (12) is three, and the three first through holes (12) are arranged in a triangular shape on the fixing body (2).

11. The dynamic balance correction auxiliary device according to claim 9, wherein a second through hole or a positioning column (15) is further disposed on the second support (11), and a positioning column (15) or a second through hole disposed in cooperation with the second through hole or the positioning column (15) is disposed on the fixing main body (2).

12. The dynamic balance correction auxiliary device according to any one of claims 2-7, wherein the fixed structure further comprises a support frame (16), the fixed body (2) is arranged on the support frame (16), and the support frame (16) is adapted to be fixedly connected with a correction platform of a balancing machine.

13. The dynamic balance correction auxiliary device according to claim 12, wherein the support frame (16) is provided with at least one third through hole (17).

14. The dynamic balance correction auxiliary device according to any one of claims 1 to 7, wherein the material of the fixing structure is an aluminum alloy.

15. A dynamic balance correction apparatus characterized by comprising the dynamic balance correction assistance device according to any one of claims 1 to 14.

Technical Field

The invention relates to the technical field of dynamic balance testing, in particular to a dynamic balance correction auxiliary device and dynamic balance correction equipment.

Background

The rotor is manufactured and installed, and the actual rotation moment center of the rotor is necessarily deviated from the theoretical axis of the rotor, so that the rotor structure generates periodic vibration under the action of centrifugal force in the movement process, which is called as rotor imbalance.

Because rotor structure uses with the impeller collocation usually, the dedicated stator that rotor assembly that discloses as a whole carries out the correction with impeller and rotor structure among the prior art, adopt the stator to provide drive power for rotor structure, can make rotor structure pivoted speed can reach very high, the correction precision of the rotor assembly of super high rotational speed has been guaranteed, but this stator is compared in the stator structure difference among the prior art, and on all weight of rotor assembly all loaded to stator structure in the correction process, the bearing capacity requirement to stator structure is higher, perhaps need to trade different stator structure to different rotor assemblies, make correction efficiency lower.

Disclosure of Invention

Therefore, the present invention is to overcome the defect that the stator structure in the prior art needs to be improved when the rotor assembly is corrected by using the stator in the prior art, so that the correction efficiency is low, and to provide a dynamic balance correction auxiliary device and a dynamic balance correction apparatus, which do not need to improve the stator structure, and do not need to replace the stator structure, so that the correction efficiency is improved.

A dynamic balance correction assistance device comprising:

a stator structure adapted to provide a driving force for rotation of the rotor structure;

the fixed structure comprises a first mounting position for mounting the stator structure and a second mounting position suitable for mounting a structure to be corrected, and the structure to be corrected at least comprises the rotor structure; or, the structure to be corrected comprises an impeller, and the impeller is driven by the rotor structure to rotate.

The fixed structure comprises a fixed main body, the first installation position and the second installation position are arranged on the fixed main body, one side of the fixed main body is fixedly connected with the stator structure, and the other side of the fixed main body is suitable for being fixedly connected with the structure to be corrected.

The fixed main body is provided with an installation space, two sides of the installation space are respectively and fixedly connected with the stator structure and the structure to be corrected, and the installation space is suitable for penetrating through a rotating shaft of the rotor structure.

The mounting space is a mounting groove.

The first installation position is clamped with the stator structure.

The first mounting location includes:

the positioning grooves are arranged on the fixing main body, positioned at two sides of the installation space and communicated with the installation space;

the groove wall of the positioning groove is provided with at least one limiting structure, and the limiting structure is provided with a limiting bulge or a limiting groove;

the two ends of a stator core of the stator structure are respectively connected with at least one first support, and a support groove or a support protrusion which is connected with the limiting protrusion or the limiting groove in a matched mode is arranged on the first support.

The fixed main body is provided with two convex parts, and the first installation position is arranged on the convex parts.

The fixed main body is connected with the rotor structure through a threaded connecting piece.

The bearing mounting structure of the rotor structure is externally connected with a second support, the fixing main body and the second support are correspondingly provided with at least one first through hole, and the threaded connecting piece is suitable for being penetrated in the first through hole.

The number of the first through holes is three, and the three first through holes are arranged on the fixing main body in a triangular mode.

The second support is further provided with a second through hole or a positioning column, and the fixing main body is provided with the positioning column or the second through hole which is matched with the second through hole or the positioning column.

The fixing structure further comprises a support frame, the support frame is provided with the fixing main body, and the support frame is suitable for being fixedly connected with a correcting platform of the balancing machine.

The support frame is provided with at least one third through hole.

The fixing structure is made of aluminum alloy.

A dynamic balance correction device comprises the dynamic balance correction auxiliary device.

The technical scheme of the invention has the following advantages:

1. the invention provides a dynamic balance correction auxiliary device, comprising: a stator structure adapted to provide a driving force for rotation of the rotor structure; the fixing structure comprises a first mounting position for mounting the stator structure and a second mounting position suitable for mounting a structure to be corrected, and the structure to be corrected at least comprises the rotor structure. Through setting up fixed knot and constructing, fixed knot constructs including the first installation position of installation stator structure and is suitable for the installation to treat the second installation position of rectifying the structure, be promptly with stator structure and treat that the structure of rectifying all installs to fixed knot construct on, stator structure only need to rotor structure's rotation provide drive power can, treat the dynamic balance of rectifying the structure and rectify the in-process, can adopt the stator structure among the prior art to provide drive power to rotor structure, need not to improve stator structure, also need not to change stator structure at the correction in-process, the efficiency of rectifying is improved.

2. The invention provides a dynamic balance correction auxiliary device, wherein a fixed structure comprises a fixed main body, a first installation position and a second installation position are arranged on the fixed main body, one side of the fixed main body is fixedly connected with a stator structure, and the other side of the fixed main body is suitable for being fixedly connected with a structure to be corrected. Through one side fixed connection stator structure at fixed main part, another fixed connection treats the correction structure for stator structure and rotor structure can set up with the axle center, have guaranteed stator structure and rotor structure's centering precision through fixed main part, avoid because the poor torque pulsation that leads to of centering precision is big, and the rotational speed is undulant big, influences the correction precision.

3. According to the dynamic balance correction auxiliary device provided by the invention, the fixing main body is provided with the installation space, two sides of the installation space are respectively and fixedly connected with the stator structure and the structure to be corrected, and the installation space is suitable for penetrating through the rotating shaft of the rotor structure.

4. According to the dynamic balance correction auxiliary device provided by the invention, the installation space is an installation groove. The installation space is arranged to be the installation groove, so that the whole mass of the fixing structure is light, and the correction precision is guaranteed.

5. According to the dynamic balance correction auxiliary device provided by the invention, the first installation position is clamped with the stator structure. Because the stator structure need not to rotate at the alignment procedure, through with first installation position and stator structure joint, when having guaranteed stator structure and fixed knot to construct fixed connection, make fixed mode simpler again.

6. The invention provides a dynamic balance correction auxiliary device, wherein the first installation position comprises: the positioning grooves are arranged on the fixing main body, positioned at two sides of the installation space and communicated with the installation space; the groove wall of the positioning groove is provided with at least one limiting structure, and the limiting structure is provided with a limiting bulge or a limiting groove; the two ends of a stator core of the stator structure are respectively connected with at least one first support, and a support groove or a support protrusion which is connected with the limiting protrusion or the limiting groove in a matched mode is arranged on the first support. Through set up the constant head tank in fixed main part, be equipped with spacing arch on the cell wall of constant head tank, stator structure's stator core both ends are equipped with complex support recess for fixed main part and stator structure's installation is spacing more firm, and constant head tank and installation space intercommunication, and it is more convenient to make stator structure and rotor structure's coaxial setting.

7. The invention provides a dynamic balance correction auxiliary device, wherein two convex parts are arranged on a fixed main body, and a first mounting position is arranged on the convex parts. Through being equipped with two convex parts on fixed main part, on the convex part was located to first installation position for fixed knot constructs whole thickness littleer, and holistic quality is lighter, has guaranteed to treat the correction precision of rectifying the structure.

8. According to the dynamic balance correction auxiliary device provided by the invention, the fixing main body is connected with the rotor structure through the threaded connecting piece. Through fixing main part and rotor structure threaded connection for rotor structure's fixed more firm, prevented that rotor structure from appearing when rotating because fixed insecure production condition of rocking, guaranteed the correction precision.

9. According to the dynamic balance correction auxiliary device provided by the invention, the number of the first through holes is three, and the three first through holes are arranged on the fixing main body in a triangular mode. Through being triangle-shaped with first through-hole and arranging, increased the fixed stability of rotor structure.

10. According to the dynamic balance correction auxiliary device provided by the invention, the second support is also provided with a second through hole or a positioning column, and the fixing main body is provided with the positioning column or the second through hole which is matched with the second through hole or the positioning column. Through being equipped with the second through-hole on the second support, set up in second through-hole complex reference column in the fixed main part for when rotor structure is fixed with the fixed main part, can play predetermined position's effect to rotor structure earlier with reference column and second through-hole cooperation, make things convenient for the follow-up screw of beating.

11. According to the dynamic balance correction auxiliary device provided by the invention, at least one third through hole is formed in the support frame. Through being equipped with at least one third through-hole on the support frame for fixed knot constructs's whole quality is lighter, has guaranteed the correction precision.

12. According to the dynamic balance correction auxiliary device provided by the invention, the fixing structure is made of aluminum alloy. The aluminum alloy is arranged as the material of the fixing structure, so that the fixing structure ensures strength, meanwhile, the whole quality is lighter, and correction precision is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a top view of the dynamic balance correction aid of the present invention assembled with a rotor assembly;

FIG. 2 is a side view of the dynamic balance correction aid of the present invention assembled with a rotor assembly;

FIG. 3 is a schematic view of a fixed structure of the dynamic balance correction auxiliary device according to the present invention;

FIG. 4 is a schematic structural view of another direction of the fixing structure of the dynamic balance correction auxiliary device of the present invention;

FIG. 5 is a schematic structural view of another alternative embodiment of the fixing structure of the dynamic balance correction auxiliary device of the present invention;

FIG. 6 is a top view of a stator structure of the dynamic balance correction assistance device of the present invention;

FIG. 7 is a side view of a stator structure of the dynamic balance correction assistance device of the invention;

FIG. 8 is a schematic structural diagram of a rotor assembly calibrated by the dynamic balance calibration assistance device of the present invention;

description of reference numerals:

1-a stator structure; 2-fixing the main body; 3, installing a groove; 4-a rotor structure; 5-an impeller; 6-a rotating shaft; 7-positioning grooves; 8-limiting bulges; 9-a bracket groove; 10-a convex part; 11-a second support; 12-a first via; 13-a stator core; 14-a first scaffold; 15-a positioning column; 16-a support frame; 17-a third via; 18-a PCB control board; 19-stator inner circle; 20-a bearing mounting structure; 21-a bearing; 22-a permanent magnet; 23-an end ring; and 24-stator coils.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 8, the present embodiment provides a dynamic balance correction assisting apparatus including: stator structure 1 and fixed structure.

The stator structure 1 is adapted to provide a driving force for rotation of the rotor structure 4; the fixed structure comprises a first mounting position for mounting the stator structure 1 and a second mounting position suitable for mounting a structure to be corrected, and the structure to be corrected at least comprises a rotor structure 4; or, the structure to be corrected comprises the impeller 5, and the impeller 5 is driven by the rotor structure 4 to rotate.

Through setting up fixed knot and constructing, fixed knot constructs including the first installation position of installation stator structure 1 and is suitable for the installation to treat the second installation position of rectifying the structure, be promptly with stator structure 1 with treat that the structure is all installed to fixed knot to construct on, stator structure 1 only need to rotor structure 4 rotate provide drive power can, treat the dynamic balance of rectifying the structure and rectify the in-process, stator structure 1 that can adopt among the prior art provides drive power to rotor structure 4, need not to improve stator structure 1, also need not to change stator structure 1 at the correction in-process, the efficiency of rectifying is improved.

The structure to be corrected in this embodiment comprises an integral rotor assembly of the rotor structure 4 and the impeller 5. As an alternative embodiment, the structure to be corrected may also be a rotor structure 4; alternatively, the structure to be corrected comprises an impeller 5, and the impeller 5 is driven by the rotor structure 4 to rotate.

As shown in fig. 6 and 7, the stator structure 1 in the present embodiment includes: stator core 13, stator coil 24 has been twined on stator core 13 to and PCB control panel 18, and when stator structure 1 and rotor structure 4 assembled, rotor structure 4's pivot 6 inserts in the stator 19 between stator core 13. As an alternative embodiment, the stator structure 1 may not comprise the PCB control board 18.

As shown in fig. 3-4, the fixing structure in this embodiment includes a fixing main body 2, a first mounting location and a second mounting location are disposed on the fixing main body 2, one side of the fixing main body 2 is fixedly connected to the stator structure 1, and the other side is adapted to be fixedly connected to the structure to be corrected. Through one side fixed connection stator structure 1 at fixed main part 2, another fixed connection treats the correction structure for stator structure 1 and rotor structure 4 can set up with the axle center, have guaranteed stator structure 1 and rotor structure 4 through fixed main part 2 to the heart precision, avoid because poor torque pulsation that leads to of heart precision is big, and the rotational speed is undulant big, influences the correction precision.

Specifically, the fixing body 2 in this embodiment has an installation space, two sides of the installation space are respectively and fixedly connected to the stator structure 1 and the structure to be corrected, and the installation space is suitable for penetrating through the rotating shaft 6 of the rotor structure 4. The specific form of the installation space is various, and the installation space in this embodiment is the installation groove 3. Through setting up installation space for mounting groove 3 for fixed knot constructs whole quality is lighter, guarantees to rectify the precision. As an alternative embodiment, the installation space may be an installation hole.

As shown in fig. 3, the first mounting position in this embodiment is clamped to the stator structure 1. Because stator structure 1 need not to rotate at the alignment process, through with first installation position and stator structure 1 joint, when having guaranteed stator structure 1 and fixed knot to construct fixed connection, make fixed mode simpler again. As an alternative embodiment, the fixing body 2 can also be screwed or otherwise fixedly connected to the stator arrangement 1.

Specifically, the first mounting position in this implementation includes: the positioning grooves 7 are arranged on the fixing main body 2, positioned at two sides of the installation space and communicated with the installation space; a limiting structure is arranged on the wall of the positioning groove 7, and a limiting bulge 8 is arranged on the limiting structure; two ends of a stator core 13 of the stator structure 1 are respectively connected with a first support 14, and a support groove 9 matched and connected with the limiting protrusion 8 is arranged on the first support 14. Through set up constant head tank 7 on fixed main part 2, be equipped with spacing arch 8 on the cell wall of constant head tank 7, stator structure 1's 13 both ends of stator core are equipped with complex support recess 9 for fixed main part 2 is more firm with stator structure 1's installation spacing, and constant head tank 7 and installation space intercommunication, make stator structure 1 more convenient with rotor structure 4's coaxial setting. As an alternative embodiment, the limiting structure may be provided with a limiting groove, and the first bracket 14 is provided with a bracket protrusion cooperatively connected with the limiting groove. As an alternative embodiment, the number of the limiting structures and the first brackets 14 may be two or more.

The fixing body 2 in this embodiment is provided with two projections 10, and the first mounting position is provided on the projections 10. Through being equipped with two convex parts 10 on fixed main part 2, first installation position is located on convex part 10 for fixed knot constructs whole thickness littleer, and holistic quality is lighter, has guaranteed to treat the correction precision of rectifying the structure. As an alternative embodiment, the first mounting position may be provided directly on the fixing body 2 without providing the projection 10.

As shown in fig. 4, in order to ensure that the rotor structure 4 is fixed more firmly, the fixing body 2 and the rotor structure 4 in the present embodiment are connected by a threaded connector, specifically, the threaded connector in the present embodiment is a screw. Through with fixed main part 2 and 4 threaded connection of rotor structure for rotor structure 4's fixed more firm, prevented that rotor structure 4 from appearing when rotating because the condition that fixed insecure production rocked, guaranteed to rectify the precision.

The dynamic balance correction auxiliary device in this embodiment can be used for correcting an integral rotor assembly of the rotor structure 4 and the impeller 5, wherein, as shown in fig. 8, the rotor structure 4 includes: the dynamic balance correcting device comprises a rotating shaft 6, wherein a bearing mounting structure 20, a permanent magnet 22 and an end ring 23 are arranged outside the rotating shaft 6, the end part, far away from an impeller 5, of the rotating shaft 6 is provided with the end ring 23, the end ring 23 can be used as a first weight removing part in the dynamic balance correcting process, and the end part, close to the bearing mounting structure 20, of the impeller 5 is a second weight removing part; the permanent magnet 22 is arranged between the end ring 23 and the bearing mounting structure 20, and the permanent magnet 22 is matched with the stator coil 24 of the stator structure 1, so that the rotor structure 4 can be driven to rotate after the stator structure 1 is electrified; bearing mounting structure 20 is located pivot 6 and is close to impeller 5 end, is equipped with bearing 21 between bearing mounting structure 20 and the pivot 6, and bearing mounting structure 20 outer joint has second support 11, corresponds on fixed main part 2 and the second support 11 and is equipped with at least one first through-hole 12, is suitable for in the first through-hole 12 to wear to establish threaded connection spare. Specifically, the number of the first through holes 12 is three, and the three first through holes 12 are arranged in a triangular shape on the fixing body 2. By arranging the first through holes 12 in a triangular shape, the stability of the fixation of the rotor structure 4 is increased. As a variable embodiment, the number of the first through holes 12 may be one or two, or more.

The bearing 21 of the rotor structure 4 may be an integrated bearing 21, in particular the bearing 21, the bearing mounting structure 20 and the shaft 6 as an integrated bearing 21. As an alternative embodiment, the bearing 21 and the shaft 6 can also be embodied as an integral bearing 21 or as a double bearing 21, such as a bearing 21 (including a double bearing 21) and a bearing mounting 20.

As an alternative embodiment, as shown in fig. 5, in order to facilitate the installation of the fixing main body 2 and the rotor structure 4, the second bracket 11 in this embodiment may further include a positioning post 15, and the fixing main body 2 may include a second through hole that is provided to be engaged with the positioning post 15. Through being equipped with reference column 15 on the second support 11, set up on the fixed main part 2 with reference column 15 complex second through-hole for when rotor structure 4 is fixed with fixed main part 2, can play predetermined position effect to rotor structure 4 with reference column 15 and second through-hole cooperation earlier, make things convenient for the follow-up screw of beating. As an alternative embodiment, the second bracket 11 may be provided with a second through hole, and the fixing body 2 may be provided with a positioning post 15.

The fixing structure in this embodiment further includes a support frame 16, the support frame 16 is provided with the fixing main body 2, the support frame 16 is suitable for being fixedly connected with a calibration platform of the balancing machine, and the support frame 16 in this embodiment is provided with at least one third through hole 17. Through being equipped with at least one third through-hole 17 on support frame 16 for fixed knot constructs the whole quality lighter, guarantees to rectify the precision.

The fixing structure in this embodiment is made of aluminum alloy. The material through with fixed knot constructs sets up to the aluminum alloy for whole quality is lighter when fixed knot constructs the proof strength, guarantees to rectify the precision. Specifically, the material of the fixing structure in this embodiment is 7075 high-strength aluminum alloy. As an alternative embodiment, the material of the fixing structure may be another aluminum alloy or another high-strength and lightweight material.

The embodiment also provides dynamic balance correction equipment which comprises the dynamic balance correction auxiliary device.

When the rotor assembly needs to be corrected, the fixing structure is fixedly connected with a correcting platform of a balancing machine through the supporting frame 16, then the stator structure 1 is clamped with a first mounting position of the fixing structure, then the second support 11 of the rotor assembly and a fixing structure are fixed on a second mounting position through screws, the rotating shaft 6 of the rotor structure 4 is inserted into the stator structure 1, the axial direction of the rotor structure 4 is parallel to the plane of the correcting platform, the parallelism of the rotor assembly is ensured, then the stator structure 1 is electrified, the stator coil 24 generates a magnetic field which is matched with the permanent magnet 22 of the rotor structure 4 to drive the rotor structure 4 to rotate, the rotor assembly is detected and judged by adopting a dynamic balance correction detection system, for example, the detection and judgment are carried out by methods such as measuring the vibration displacement amplitude of the rotor assembly, and the methods for detecting the dynamic balance correction are many (the methods for detecting the dynamic balance are not, when the rotor assembly is in dynamic unbalance, the first weight removing part and the second weight removing part can be cut, namely double-sided correction is adopted for the rotor assembly, and the dynamic balance of the rotor assembly is guaranteed.

After the dynamic balance correction is carried out on one rotor assembly, the dynamically balanced rotor assembly can be disassembled and assembled, meanwhile, the stator structure 1 and the fixed structure are not changed, two rotor assemblies to be corrected are assembled on the fixed structure, the other rotor assembly is corrected by the same method, the disassembling and assembling time can be shortened, the repeatability problem caused by disassembling and assembling the stator structure 1 is reduced, and the correcting efficiency is improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.