Rotor rotation balance adjustment structure, rotor rotation balance adjusted structure, rotating electric machine, and method for adjusting the rotor rotation balance of a rotating electric machine.

Abstract

To provide a rotor rotational balance adjustment method that can be performed manually without using a rotational balance adjustment machine, allows for accurate positioning, fine adjustment, and readjustment, and is advantageous for miniaturizing the rotor and the entire rotating electric machine. [Solution] The rotor rotation balance adjustment structure 5 is a structure for adjusting the rotational balance of the rotor 10 of a rotating electric machine, which is composed of a rotor core 7, a magnet 8, and a shaft 9, wherein the rotor 10 is provided with one or more tapped holes 2, and the tapped holes 2 are for housing set screws 3 for adjusting the rotational balance of the rotor 10.

Description

【Technical Field】 【0001】 The present invention relates to a structure for adjusting the rotor rotation balance, a structure with the rotor rotation balance adjusted, a rotating electrical machine, and a method for adjusting the rotor rotation balance of a rotating electrical machine. In particular, the present invention relates to a technique for adjusting the rotation balance of a rotor in a rotating electrical machine such as a servo motor. 【Background Art】 【0002】 In the manufacturing process of the rotor of a rotating electrical machine, due to limitations in materials and processing accuracy, the rotation balance often cannot be perfectly uniform. Therefore, additional balance adjustment is generally required after manufacturing. The following are two commonly used conventional methods for adjusting the rotation balance of a rotor. 【0003】 FIG. 8 is a perspective explanatory view showing a conventional rotor rotation balance adjustment method in a rotating electrical machine. The rotor rotation balance adjustment method shown at (p) in the figure is an adjustment method using a rotation balance adjustment material. That is, a rotation balance adjuster (not shown) is used to adjust the rotation balance of the rotor 810 composed of a rotor core 87, a magnet (not shown), and a shaft 89, and based on its instruction, an appropriate amount of the rotation balance adjustment material 80 is attached and fixed to the indicated position. 【0004】 Also, the rotor rotation balance adjustment method shown at (q) in the figure is an adjustment method by cutting. That is, a rotation balance adjuster (not shown) is used to adjust the rotation balance of the rotor 910 composed of a rotor core 97, a magnet (not shown), and a shaft 99, and based on its instruction, a cutting hole 96 is formed in the end plate 91 previously attached to the rotor 910 using a drill or the like. The position and cutting amount of the cutting hole 96 by the rotation balance adjuster are based on the instruction of the rotation balance adjuster. 【0005】 In addition, conventional patent applications and the like have been made regarding the technique for adjusting the rotor rotation balance of a rotating electrical machine. The following Patent Documents 1, 2, and 3 are examples thereof. 【Prior Art Documents】 [Patent Documents] 【0006】 [Patent Document 1] Japanese Patent Publication No. 01-174243, "Method for correcting the balance amount of a rotating body" [Patent Document 2] Japanese Patent Publication No. 03-282227, "Method for Balancing a Rotating Body" [Patent Document 3] Japanese Utility Model Publication No. 56-108365, "Balance adjustment device for motor rotors" [Overview of the Initiative] [Problems that the invention aims to solve] 【0007】 However, in method (p) shown in Figure 8, a rotational balance adjustment material 80 is added to the rotor 810, and in method (q), an end plate 91 is added to the rotor 810, 910, respectively. Therefore, these methods are disadvantageous from the standpoint of miniaturizing the rotor 810 and the entire rotating electric machine. Furthermore, although both adjustment methods use a rotational balance adjustment machine, the rotor 810 and other components must be moved and their orientation changed each time adjustment is performed. In other words, rotational balance checks must be performed with the rotor 810 and other components horizontal, while adjustment work must be performed with the rotor 810 and other components vertical, which is cumbersome. 【0008】 Furthermore, performing any of these adjustment methods manually without using a rotational balance adjustment machine makes accurate positioning difficult, as well as fine-tuning and readjustment. In addition, the adjustment method by cutting shown in (q) of Figure 8 cannot cut to a depth greater than the prepared end plate 91, resulting in a narrow range of adjustment. A rotational balance adjustment technology is needed that can resolve these various problems in conventional technologies. 【0009】 Therefore, the problem that the present invention aims to solve is to provide a rotor rotation balance adjustment method that eliminates the problems of the conventional technology, can be performed manually without using a rotation balance adjustment machine which is complicated to handle, allows for accurate positioning, fine adjustment and readjustment even when performed manually, has a wider adjustable range than the end plate method, and is advantageous for miniaturizing the rotor and the entire rotating electric machine. [Means for solving the problem] 【0010】 As a result of considering the above problem, the inventor of the present invention came up with a method of tapping two points in a cross direction from the radial direction of the rotor shaft, inserting set screws, and adjusting the rotational balance at the position of the set screws. After confirming that this method is effective, the inventor further investigated and considered the matter, and completed the present invention. That is, the invention claimed in this application, or at least disclosed, as a means of solving the above problem is as follows. 【0011】 [1] A rotor rotation balance adjustment structure for adjusting the rotational balance of a rotor of a rotating electric machine comprising a rotor core, magnets, and a shaft, characterized in that the rotor is provided with one or more tapped holes, the tapped holes being for housing set screws for adjusting the rotational balance of the rotor. [2] A structure for adjusting the rotational balance of a rotor of a rotating electric machine, characterized in that the rotor is provided with one or more tapped holes, and one or more set screws for adjusting the rotational balance of the rotor are housed in or attached to each tapped hole. [3] The rotor rotation balance adjustment structure according to either [1] or [2], characterized in that two or more tapped holes are provided, and each tapped hole is provided in a direction that intersects with each other. [4] The rotor rotation balance adjustment structure according to [3], characterized in that each of the tapped holes intersects at the axis in a cross-sectional view from the end face direction of the shaft, and the angles of intersection are equal. [5] The rotor rotation balance adjustment structure according to [4], characterized in that at least two of the tapped holes are located at different positions in the axial direction, i.e., at different levels. 【0012】 [6] The rotor rotation balance adjustment structure according to any one of [1], [2], [4], or [5], characterized in that the tapped holes are provided perpendicular to the axial direction. [7] The rotor rotation balance adjustment structure according to any one of [1], [2], [4], or [5], characterized in that the tapped hole is a through hole. [8] The rotor rotation balance adjustment structure according to any one of [1], [2], [4], or [5], characterized in that the tapped hole is provided on the shaft. [9] The rotor rotation balance adjustment structure according to any one of [1], [2], [4], or [5], characterized in that the tapped holes are provided in the rotor core. 【0013】

[10] A rotor rotation balance adjustment structure characterized in that the set screw is fixed by a fixing means in the tapped hole of the rotor rotation balance adjustment structure described in any of [1], [2], [4], or [5].

[11] The rotor rotation balance adjusted structure according to

[10] , characterized in that the fastening means is an adhesive.

[12] A rotating electric machine characterized by having the rotor rotation balance adjusted structure described in

[10] .

[13] A method for adjusting the rotor rotation balance of a rotating electric machine having a rotor rotation balance adjustment structure as described in any of [1], [2], [4], or [5], characterized in that it comprises a set screw housing step that forms a state in which the set screw is housed in the tapped hole, and a position adjustment step that adjusts the fixed position of the set screw in the tapped hole.

[14] The method for adjusting the rotor rotation balance of a rotating electric machine according to

[13] , characterized in that it includes a set screw fixing process for fixing the set screw, whose fixed position has been adjusted by the position adjustment process, with a fixing means. [Effects of the Invention] 【0014】 The rotor rotation balance adjustment structure, rotor rotation balance adjusted structure, rotating electric machine, and rotor rotation balance adjustment method of the present invention are configured as described above. With these, the rotor rotation balance can be adjusted manually without using a rotation balance adjustment machine, and even though it is done manually, accurate positioning, fine adjustment, and readjustment are easy, and the adjustable range is wider than that of the end plate method. 【0015】 Furthermore, according to the present invention, rotational balance adjustment can be performed entirely within the rotor, rather than attaching the required components externally to the rotor as in the conventional technology. In other words, the adjustment method involves, for example, tapping a hole in the shaft for inserting a set screw and then screwing the set screw into it as needed. Therefore, since no new adjustment components are required, it contributes to miniaturization of the rotor and the entire rotating electric machine. 【0016】 This invention utilizes a screw-based adjustment method, requiring only the movement of a set screw during rotational balance adjustment. Adjusting the set screw position only requires controlling the amount of screw movement (turning). Therefore, the adjustment process is simple and does not require skilled workers. Furthermore, since the adjustment can be performed with the rotor remaining horizontal, it is convenient as it does not require the rotor to be moved during adjustment, unlike methods using a rotational balance adjustment machine. 【0017】 Furthermore, according to the present invention, production management becomes easier by determining the number of set screws used per rotating electric machine. In addition, according to the present invention, which uses a fixing means such as an adhesive for the set screws, the properly adjusted state can be stably and permanently maintained. 【0018】 Note that among the above prior arts, the technology disclosed in Patent Document 1 is at least different in that it does not require the use of a predetermined member for balance adjustment and can utilize the rotor as it is. Further, the technologies disclosed in Patent Documents 2 and 3 are at least different in that they can be managed by the movement amount of the set screw rather than adjusting by changing the number and arrangement of weights such as screws. 【Brief Description of the Drawings】 【0019】 [Figure 1] It is an explanatory side sectional view showing the basic configuration and usage method of the structure for adjusting the rotor rotation balance of the present invention. [Figure 2] It is an explanatory side sectional view showing a configuration example of the structure for adjusting the rotor rotation balance of the present invention. [Figure 3] It is an explanatory plan view showing a configuration example of the tapping hole according to the structure for adjusting the rotor rotation balance of the present invention. [Figure 4] It is an explanatory perspective view showing a configuration example of the structure for adjusting the rotor rotation balance of the present invention. [Figure 5] It is an explanatory perspective view of the main part showing a configuration example of the structure for adjusting the rotor rotation balance of the present invention and the structure with the rotor rotation balance adjusted. [Figure 6] It is a flowchart showing the basic configuration of the method for adjusting the rotor rotation balance of the rotating electric machine of the present invention. [Figure 7] It is a main part side sectional view showing the position adjustment process according to the method for adjusting the rotor rotation balance of the rotating electric machine of the present invention shown in FIG. 6 using the configuration example of FIG. 5. [Figure 7-2] It is a flowchart showing the configuration of the method for adjusting the rotor rotation balance of the rotating electric machine of the present invention having a process of fixing the set screw. [Figure 8] It is an explanatory perspective view showing a conventional method for adjusting the rotor rotation balance in a rotating electric machine. 【Embodiments for Carrying Out the Invention】 【0020】 Hereinafter, the present invention will be described in detail with reference to the drawings. Figure 1 is a side cross-sectional view illustrating the basic configuration and usage method of the rotor rotation balance adjustment structure of the present invention. As shown in (a) in the figure, the rotor rotation balance adjustment structure 5 is a structure for adjusting the rotational balance of the rotor 10 of a rotating electric machine, which is composed of a rotor core 7, a magnet 8, and a shaft 9. The main configuration is that the rotor 10 is provided with one or more tapped holes 2, and the tapped holes 2 are for housing set screws 3 for adjusting the rotational balance of the rotor 10. Note that (a) shows an example configuration in which two tapped holes 2, 2 are provided on the shaft 9 that constitutes the rotor 10. 【0021】 Alternatively, as shown in Figure 1(b), tapped holes 2b may be provided on the rotor core 7b that constitutes the rotor 10b. That is, the rotor rotation balance adjustment structure 5b shown in b) is a structure for adjusting the rotational balance of the rotor 10b of a rotating electric machine composed of a rotor core 7b, a magnet 8b, and a shaft 9b, wherein the rotor 10b is provided with one or more tapped holes 2b, and the tapped holes 2b are for housing set screws 3b for adjusting the rotational balance of the rotor 10b. This example also shows an example in which two tapped holes 2b, 2b are provided on the rotor core 7b that constitutes the rotor 10b. 【0022】 In both the rotor rotation balance adjustment structure 5 shown in (a) and the rotor rotation balance adjustment structure 5b shown in (b) of the figure, the rotation balance of the rotor 10 is adjusted by housing a set screw 3 in a tapped hole 2 provided in the rotor 10. In other words, the proper rotation balance of the rotor 10 is achieved by how deeply the set screw 3 is inserted and housed in the tapped hole 2. The further the position of the set screw 3 in the tapped hole 2 is from the axis, the greater the degree of rotation balance adjustment can be, and the closer it is to the axis, the smaller the degree of adjustment can be. 【0023】 Note that while (a) shows a configuration in which the shaft 9 has a tapped hole 2 and (b) shows a configuration in which the rotor core 7b has a tapped hole 2b, it is also possible to have tapped holes in both the shaft and the rotor core. Furthermore, it is also possible to have a configuration in which two or more types of set screws 3 with different weights are provided to increase the range in which the rotational balance can be adjusted. 【0024】 Figure 2 is a side cross-sectional view illustrating an example of the configuration of the rotor rotation balance adjustment structure of the present invention. Figure (c) shows a configuration in which two tapped holes 22c are provided on the shaft 29c, and figure (d) shows a configuration in which two tapped holes 22d are provided on the shaft 29d. The rotor rotation balance adjustment structure 25c shown in (c) is configured such that one or more set screws 23c (one in the figure) for adjusting the rotation balance of the rotor are attached to each tapped hole 22c. 【0025】 On the other hand, the rotor rotation balance adjustment structure 25d shown in Figure 2(d) is configured such that one or more set screws 23d (one in the figure) for adjusting the rotation balance of the rotor are housed in the tapped hole 22d. In both configuration 25c, where the set screws 23c are attached, and configuration 25d, where the set screws 23d are housed in the tapped hole 22d, the rotor rotation balance adjustment work can be started immediately. In particular, in configuration 25d shown in (d), since the set screws 23d are housed in the tapped hole 22d in advance, the adjustment work can be performed more smoothly and efficiently. 【0026】 The adjustment of the position of the set screws 3, etc., may be done manually or automated using machinery. However, sufficient results can be obtained by manual work. 【0027】 Figure 3 is a plan view diagram illustrating examples of tapped hole configurations for the rotor rotation balance adjustment structure of the present invention, with three examples shown: configuration example 35e in (e), configuration example 35g in (g), and configuration example 35i in (j). As illustrated in Figure (e), the rotor rotation balance adjustment structure 35e has two or more tapped holes, such as 32e and 32f (two in the figure), and the tapped holes 32e and 32f are arranged in directions that intersect each other. The same configuration is found in Figures (g) and (i). 【0028】 By providing tapped holes in two or more locations and in intersecting directions, the rotational balance of the rotor 310e, etc., can be adjusted from multiple directions, thereby enabling more effective, efficient, and smoother adjustment work. It should be noted that configurations other than those in which the two or more tapped holes 32e, 32f, etc., are provided in intersecting directions, such as in (e) in the figure, i.e., configurations in which the tapped holes are provided in parallel, are not excluded from the present invention. 【0029】 The rotor rotation balance adjustment structure of the present invention can also be configured such that, as illustrated in configuration 35i shown in (i) of Figure 3, the tapped holes 32i, 32j, and 32k intersect at the axis in a cross-sectional view from the end face of the shaft, and their intersection angles are equal. In configuration (i), the tapped holes are provided at three equally spaced (angled) locations, so their intersection angles are 60°. The intersection angles do not necessarily have to be equal, but equal spacing is desirable for adjustment work. 【0030】 However, in the rotor rotation balance adjustment structure of the present invention, two tapped holes are sufficient to obtain the desired effect, and three or more are not necessary. On the other hand, the present invention is not excluded even if there is only one tapped hole, but it is desirable to have two or more in order to obtain a sufficient rotation balance adjustment effect. 【0031】 As shown in Figure 4 and described later, when there are two tapped holes at equal intervals, their intersection angle is 90°. This is the best tapped hole configuration for the rotor rotation balance adjustment structure of the present invention. This configuration allows for a wide range of adjustment in rotor rotation balance adjustment, enabling appropriate adjustment work. 【0032】 Figure 4 is a perspective view illustrating an example of the configuration of the rotor rotation balance adjustment structure of the present invention. In the figure, (m) is a perspective view and (n) is a perspective view of (m). As shown here, the rotor rotation balance adjustment structure 45 has two tapped holes 42, 42 that intersect at the axis in a cross-sectional view from the end face direction of the shaft 49, with an intersection angle of 90°, which is the best embodiment of the tapped hole configuration. 【0033】 Furthermore, as shown in Figure 4, at least two of the tapped holes 42, 42 (only two locations in the figure) can be configured to be at different positions in the direction of the axis 49, i.e., at different heights. A configuration in which multiple tapped holes are provided at the same height rather than at different heights is also not excluded from the present invention, but in this case, there will be places where the tapped holes intersect, which may limit the adjustment work, i.e., the range of movement of the set screw inside the tapped hole. 【0034】 With a staggered configuration, the movement of the set screws within each tapped hole 42 can be freely controlled within the longitudinal range of the tapped hole 42, ensuring a wide range for rotor rotation balance adjustment. This staggered configuration can also be used in configurations where three or more tapped holes are provided. 【0035】 Figure 5 is a perspective view illustrating the main components of the rotor rotation balance adjustment structure and the rotor rotation balance adjusted structure according to the present invention. As shown in the figure, the rotor rotation balance adjustment structure 55 can be configured such that its tapped holes 52 are provided perpendicular to the direction of the axis 59. Configurations where the tapped holes are not perpendicular to the direction of the axis 59, i.e., oblique to the axis 59, are not excluded from the present invention, but a perpendicular configuration is desirable for ease of rotation balance adjustment work and for efficient and smooth adjustment. 【0036】 As shown in Figure 5, the tapped hole 52 of the rotor rotation balance adjustment structure 55 can be a through hole. By making it a through hole, the process of forming the tapped hole 52 is simplified, and both ends of the through-hole tapped hole 52 can be used as insertion points for the set screws 53, which is convenient. Note that the tapped hole may not be a through hole, as shown in (e) and (g) of Figure 3 above, for example, tapped hole 22e. 【0037】 Figure 5 also shows an example of the configuration of the rotor rotation balance adjusted structure 50 of the present invention. In this rotor rotation balance adjusted structure 50, the rotation balance adjustment has been completed and the set screw 53 is fixed in a predetermined position in the tapped hole 52. The set screw 53 may be fixed in place by a suitable adhesive or other fixing means. By securely fixing the set screw 53 to the adjusted predetermined position with a fixing means, the rotation balance adjustment result can be fixed more reliably and stably. 【0038】 Furthermore, a rotating electric machine equipped with a rotor rotation balance adjustment structure 5, etc., of any of the configurations described above is also within the scope of the present invention. Examples of rotating electric machines include motors, sensors, and generators. 【0039】 Figure 6 is a flowchart showing the basic configuration of the rotor rotation balance adjustment method for a rotating electric machine according to the present invention. As shown in the figure, the rotor rotation balance adjustment method for a rotating electric machine is a rotor rotation balance adjustment method for a rotating electric machine having a rotor rotation balance adjustment structure 5 etc. of any configuration described above, and mainly consists of a set screw housing process P10 which forms a state in which set screws 3 etc. are housed in tapped holes 2 etc., and a position adjustment process P20 which adjusts the fixed position of set screws 3 etc. in tapped holes 2 etc. 【0040】 In this rotor rotation balance adjustment method with the above configuration, during the set screw housing process P10, the set screws 3 etc. are housed in the tapped holes 2 etc. However, at this stage, the position of the set screws 3 etc. has not yet been adjusted. Then, during the position adjustment process P20, the fixing position of the set screws 3 etc. in the tapped holes 2 etc. is adjusted appropriately, and the rotation balance of the rotor is adjusted. 【0041】 Figure 7 is a side cross-sectional view of the main part showing the position adjustment process P20 related to the rotor rotation balance adjustment method of the rotating electric machine of the present invention shown in Figure 6, using the configuration example in Figure 5. As shown in the figure, in the pre-rotor rotation balance adjustment structure p50, the set screw 53 housed in the tapped hole 52 is movable in either the left or right direction in the figure, and the rotation balance adjustment of the rotor is performed by such movement. 【0042】 Figure 7-2 is a flowchart showing the configuration of the rotor rotation balance adjustment method for a rotating electric machine according to the present invention, which includes a set screw fixing process. As shown in the figure, this rotor rotation balance adjustment method is characterized by having a set screw fixing process P30 in which the set screws 3, whose fixed positions have been adjusted in the position adjustment process P20, are fixed with a fixing means such as an adhesive, in addition to the configuration shown in Figure 6. 【0043】 In this rotor rotation balance adjustment method with the above configuration, during the set screw housing process P10, the set screws 3 etc. are housed in the tapped holes 2 etc. Then, during the position adjustment process P20, the fixing position of the set screws 3 etc. in the tapped holes 2 etc. is appropriately adjusted to adjust the rotation balance of the rotor. In the subsequent position adjustment process P20, the set screws 3 etc. whose fixing position has been adjusted are fixed by a fixing means such as adhesive. As a result, a fixed rotor rotation balance adjusted structure 60 is formed in which the set screws 3 etc. are permanently fixed in the appropriate position after the rotor rotation balance has been adjusted. [Industrial applicability] 【0044】 The rotor rotation balance adjustment structure of the present invention allows for manual adjustment of the rotor rotation balance in servo motors and the like by tapping a set screw from the radial direction of the shaft and adjusting the rotation balance at the position of the set screw. This method allows for manual adjustment of the rotor rotation balance without the use of a rotation balance adjustment machine, and despite being done manually, it facilitates accurate positioning, fine adjustment, and readjustment, as well as being advantageous for miniaturizing the entire rotating electric machine. Therefore, this invention has high industrial applicability in the manufacturing and use fields of rotating electric machines, including servo motors, and all related fields. [Explanation of Symbols] 【0045】 2, 2b, 22c, 22d, 32e, 32f, 32g, 32h, 32i, 32j, 32k, 42, 52… Tapped holes 3, 3b, 23c, 23d, 53...set screw 5, 5b, 25c, 25d, 35e, 35g, 35i, 45, 55... Structure for adjusting rotor rotation balance 7, 7b, 27c, 27d, 47, 57… Rotor core 8, 8b, 28c, 28d… Magnets 9, 9b, 29c, 29d, 49, 59...axis 10, 10b, 210c, 210d, 310e, 310g, 310i, 410, 510… Rotors of rotating electric machines 50…Rotor rotation balance adjusted structure 60… Fixed rotor rotation balanced structure p50...Rotor rotation balance adjustment pre-structure P10...Set screw installation process P20…Position adjustment process P30...Set screw fixing process P30 80... Rotational balance adjustment material 87, 97… Rotor core 89, 99... axis 810, 910… Rotor 91... Rotor end plate 96…cutting hole

Claims

[Claim 1] A structure for adjusting the rotational balance of the rotor of a rotating electric machine, which consists of a rotor core, magnets, and a shaft, The rotor is equipped with one or more tapped holes, The tapped hole is for housing a set screw for adjusting the rotational balance of the rotor. A rotor rotation balance adjustment structure characterized by the following features. [Claim 2] A structure for adjusting the rotational balance of the rotor of a rotating electric machine, The rotor is equipped with one or more tapped holes, Each tapped hole contains or is equipped with one or more set screws for adjusting the rotational balance of the rotor. A rotor rotation balance adjustment structure characterized by the following features. [Claim 3] The rotor rotation balance adjustment structure according to either claim 1 or 2, characterized in that two or more tapped holes are provided, and each tapped hole is provided in a direction that intersects with each other. [Claim 4] The rotor rotation balance adjustment structure according to claim 3, characterized in that each of the tapped holes intersects at the axis in a cross-sectional view from the end face direction of the shaft, and the angles of intersection are equal. [Claim 5] The rotor rotation balance adjustment structure according to claim 4, characterized in that at least two of the aforementioned tapped holes are provided at different axial positions, i.e., at different levels. [Claim 6] The rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5, characterized in that the tapped holes are provided perpendicular to the axial direction. [Claim 7] The rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5, characterized in that the tapped hole is a through hole. [Claim 8] The rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5, characterized in that the tapped hole is provided on the shaft. [Claim 9] The rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5, characterized in that the tapped holes are provided in the rotor core. [Claim 10] A rotor rotation balance adjustment structure characterized in that the set screw is fixed in the tapped hole of the rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5 by a fixing means. [Claim 11] The rotor rotation balance adjusted structure according to claim 10, characterized in that the fixing means is an adhesive. [Claim 12] A rotating electric machine characterized by having a rotor rotation balance adjusted structure as described in claim 10. [Claim 13] A method for adjusting the rotor rotation balance in a rotating electric machine having a rotor rotation balance adjustment structure according to any one of claims 1, 2, 4, or 5, A set screw insertion process that forms a state in which the set screw is housed in the tapped hole, A position adjustment process for adjusting the fixing position of the set screw in the tapped hole. A method for adjusting the rotor rotation balance of a rotating electric machine, characterized by comprising the following. [Claim 14] The method for adjusting the rotor rotation balance of a rotating electric machine according to claim 13, characterized in that it includes a set screw fixing process for fixing the set screw, whose fixed position has been adjusted by the position adjustment process, with a fixing means.

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