Installation and Calibration Device and Method for the Installation Dynamic Feedback System of a Generator Set Rotor

Abstract

The present invention provides an installation and calibration device and method for a dynamic feedback system for installing a generator set rotor, including a generator stator, a laser alignment device, and a calibration tooling. The calibration tooling includes a first calibration tooling and a second calibration tooling. The first calibration tooling and the second calibration tooling are respectively installed at opposite ends of the generator stator. Central holes are respectively formed in the first calibration tooling and the second calibration tooling, and the central holes are concentric with the stator holes of the generator stator. The laser alignment device includes a laser generator, and the laser generator is respectively located on one side of the first standard tooling and the second standard tooling. A laser emission hole is provided on the laser generator, and the laser emission hole and the stator hole of the generator stator are located on the same axis. The present invention first uses the wire-pulling method for central positioning, and then performs angle adjustment. After fine adjustment, as the precision adjustment method of the device, it can improve the precision more highly.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and particularly to an installation calibration device and method for a dynamic feedback system of a generator set rotor installation. Background Art

[0002] The installation of the rotor of a large generator set needs to be carried out on site. The gap between the rotor and the stator is small, and some are only 20 mm. Equipment such as overhead cranes are required for rotor installation, and at the same time, manual labor or facilities are used for dynamic adjustment of the alignment between the rotor and the stator.

[0003] Based on the above problems, a dynamic feedback system for the installation position of a large generator set rotor has been proposed in the prior art. For the dynamic feedback systems already made in the current prior art, the installation of the dynamic feedback system in the prior art also requires corresponding methods to ensure accurate feedback of the dynamic feedback system. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an installation calibration device and method for a dynamic feedback system of a generator set rotor. First, the center positioning is carried out by the wire-pulling method, and then the angle adjustment is carried out. After fine adjustment, as the precision adjustment method of the device, the precision can be improved more highly.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] Installation and calibration device for the installation dynamic feedback system of a generator set rotor, characterized in that: it includes a generator stator, a laser alignment device and a calibration tooling. The calibration tooling includes a first calibration tooling and a second calibration tooling. The first calibration tooling and the second calibration tooling are respectively installed at opposite ends of the generator stator. Central holes are respectively provided on the first calibration tooling and the second calibration tooling, and the central holes are concentric with the stator holes of the generator stator. The laser alignment device includes a laser generator. The laser generator is respectively located on one side of the first standard tooling and the second standard tooling. A laser emission hole is provided on the laser generator, and the laser emission hole is on the same axis as the stator hole of the generator stator. When calibrating the generator stator, the laser emitted from the laser emission hole on one side of the first standard tooling passes through the central hole on the first calibration tooling. At this time, record the position of the laser spot on the second calibration tooling. If the spot passes through the central hole on the second calibration tooling, the laser generator on one side of the first standard tooling is at the central position of the stator hole of the generator stator; if the spot position deviates from the central hole on the second standard tooling, according to the cheap scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by the laser generator on one side of the first standard tooling and the axis of the stator hole of the generator stator, δ is the linear displacement of the laser on the second calibration tooling, and L is the distance between the first calibration tooling and the second calibration tooling. Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up-and-down and horizontal lateral adjustments of the laser generator on one side of the first standard tooling to achieve calibration, and use the above principle to adjust the laser generator on one side of the second standard tooling.

[0007] In the above structure: The present invention proposes an installation and calibration device for the installation dynamic feedback system of a generator set rotor, including a generator stator, a laser alignment device and a calibration tooling. Among them, the calibration tooling includes a first calibration tooling and a second calibration tooling, and the laser alignment device includes a laser generator. During installation, the first calibration tooling and the second calibration tooling are respectively installed at both ends of the generator stator. The central holes on the first calibration tooling and the second calibration tooling are concentric with the stator holes of the generator stator. First, determine the installation axis of the laser generator by pulling a wire. Pass the wire through the generator stator and make it pass through the first calibration tooling and the second calibration tooling respectively, and then tighten it to find the axis of the stator hole of the generator stator. According to this axis, initially install the laser generators on one side of the first calibration tooling and the second calibration tooling respectively at a preset axial distance from the first calibration tooling and the second calibration tooling.

[0008] When calibrating the generator stator, the laser emitted from the laser emission hole on one side of the standard tooling one passes through the central hole on the calibration tooling one. At this time, record the position of the laser spot on the calibration tooling two. If the spot passes through the central hole on the calibration tooling two, the laser generator on one side of the standard tooling one is at the central position of the stator hole of the generator stator; if the position of the spot deviates from the central hole on the calibration tooling two, according to the scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by the laser generator on one side of the standard tooling one and the axis of the stator hole of the generator stator, δ is the linear displacement of the laser on the calibration tooling two, and L is the distance between the calibration tooling one and the calibration tooling two. Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up and down and horizontal lateral adjustments of the laser generator on one side of the standard tooling one to achieve calibration. Adjust the laser generator on one side of the standard tooling two by using the above principle.

[0009] As a preferred technical solution of the present invention: the standard tooling one is a panel one, the standard tooling two is a panel two, the panel one and the panel two are respectively made of transparent materials, and the panel one and the panel two are respectively marked with concentric circle-shaped scales with the central hole as the center.

[0010] In the above structure: the standard tooling one is a panel one, and the standard tooling two is a panel two, which are respectively installed at both ends of the generator stator. Among them, the panel one and the panel two are respectively made of transparent materials, which is convenient for observing the laser spot emitted by the laser generator. The panel one and the panel two are respectively marked with concentric circle-shaped scales with the central hole as the center, which is convenient for the staff to record the position information of the spot.

[0011] As a preferred technical solution of the present invention: it further includes a generator bracket and an installation platform. The generator bracket includes an installation fixing column and a generator installation frame. The installation fixing column is vertically installed on the generator installation frame. The installation platform is movably installed on the installation fixing column through a tightening device. A bottom plate is fixedly installed on the installation platform, and the laser generator is fixedly installed on the installation platform through the bottom plate.

[0012] In the above structure: the installation fixing column is vertically installed on the generator installation frame to realize the fixation and installation of the installation fixing column. The installation platform is movably installed on the installation fixing column through a tightening device, which is convenient for adjusting the position of the laser generator. A bottom plate is fixedly installed on the installation platform, and the laser generator is fixedly installed on the installation platform through the bottom plate, realizing the fixation and installation of the laser generator.

[0013] As a preferred technical solution of the present invention: it further includes a handle, and the handle is fixedly installed above the laser generator.

[0014] In the above structure: By setting the handle, the installation and disassembly of the laser generator are facilitated.

[0015] As a preferred technical solution of the present invention: There are two laser generators, namely laser generator one and laser generator two, and laser generator one and laser generator two are respectively located on one side of panel one and panel two.

[0016] As a preferred technical solution of the present invention: It further includes a wire rope. The wire rope passes through the generator stator and respectively passes through the central holes of panel one and panel two and is tensioned. When the wire rope is tensioned, the horizontal position of the wire rope is the axis of the stator hole of the generator stator, and the laser emission holes on laser generator one and laser generator two are located on this axis.

[0017] In the above structure: By setting the wire rope, the determination of the axis of the stator hole of the generator stator is realized, so as to realize the positioning and installation of laser generator one and laser generator two. The wire rope passes through the generator stator and respectively passes through the central holes of panel one and panel two and is tensioned. When positioning the axis, the wire rope passes through the generator stator and respectively passes through the central holes of panel one and panel two and is tensioned. The horizontal position of the wire rope is the axis of the stator hole of the generator stator, and the laser emission holes on laser generator one and laser generator two are located on this axis.

[0018] As a preferred technical solution of the present invention: It further includes generator brackets. There are two generator brackets, and the two generator brackets are fixedly parallel to the ground, and the generator stator is fixedly installed on the generator brackets.

[0019] In the above structure: By setting the generator brackets, the installation and fixation of the generator stator are realized.

[0020] A calibration method for an installation calibration device of a generator set rotor installation dynamic feedback system, characterized by comprising the following steps:

[0021] S1. Installation: Panel one and panel two are respectively installed at both ends of the generator stator. The central holes on panel one and panel two are concentric with the stator holes of the generator stator. Pass the wire rope through the generator stator and make it pass through panel one and panel two respectively, and then tighten it. Find the axis of the stator hole of the generator stator, and according to this axis, initially install laser generator one and laser generator two on the installation and fixing columns at a preset axial distance from panel one and panel two, and appropriately adjust the positions and angles of laser generator one and laser generator two.

[0022] S2. Calibration: After the initial installation and adjustment of Laser Generator 1 and Laser Generator 2, turn on Laser Generator 1 and finely adjust the installation platform below Laser Generator 1 so that the laser emitted by Laser Generator 1 passes through the central hole on Panel 1. Record the position of the laser spot on Panel 2 at this time. If the spot passes through Panel 2, it indicates that Laser Generator 1 is at the center position of the stator hole of the generator stator. If the spot position deviates, according to the calibration scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by Laser Generator 1 and the axis of the stator hole of the generator stator, δ is the linear displacement of the laser on Panel 2, and L is the distance between Panel 1 and Panel 2. Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up-and-down and horizontal lateral adjustments of Laser Generator 1. Similarly, Laser Generator 2 can be adjusted.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This method first uses structural components to locate the centers at both ends of the rotor. On this basis, the wire-pulling method is adopted to find the axis position and install the laser generators at both ends. Then, the angle of the laser generator is adjusted.

[0025] The present invention first performs central positioning. By adopting the wire-pulling method, it is relatively simple and reliable. Then, angle adjustment is carried out. After fine adjustment, as a system precision adjustment method, it can improve the precision more highly. It is inexpensive, easy to operate, and does not require special instruments and complex training. Description of the Drawings

[0026] Figure 1 Schematic diagram of the overall installation structure of the present invention;

[0027] Figure 2 Schematic diagram of the laser generator structure in the present invention;

[0028] Figure 3 Data table diagram for actual adjustment of a generator with a rotor length of 10 m in the embodiment.

[0029] List of reference numerals:

[0030] 1. Laser Emission 1; 2. Laser Emission 2; 3. Wire; 4. Generator Stator; 5. Panel 1; 6. Generator Bracket; 7. Panel 2; 8. Laser Emission Hole; 9. Handle; 10. Laser Generator; 11. Installation and Fixing Column; 12. Tightener; 13. Generator Installation Frame; 14. Bottom Plate; 15. Installation Platform. Embodiment

[0031] The following further describes the present invention in detail in conjunction with the drawings and specific embodiments:

[0032] As shown Figure 1-2 : The present invention provides an installation and calibration device for a dynamic feedback system for installing a generator set rotor, including a generator stator 4, a laser alignment device, and a calibration tooling. The calibration tooling includes a first calibration tooling and a second calibration tooling. The first calibration tooling and the second calibration tooling are respectively installed at opposite ends of the generator stator 4. Central holes are respectively formed in the first calibration tooling and the second calibration tooling, and the central holes are concentric with the stator holes of the generator stator 4. The laser alignment device includes a laser generator 10. The laser generator 10 is respectively located on one side of the first calibration tooling and the second calibration tooling. A laser emission hole 8 is provided on the laser generator 10, and the laser emission hole 8 and the stator hole of the generator stator 4 are located on the same axis. When calibrating the generator stator 4, the laser emitted from the laser emission hole 8 on one side of the first calibration tooling passes through the central hole on the first calibration tooling. At this time, the position of the laser spot on the second calibration tooling is recorded. If the laser spot passes through the central hole on the second calibration tooling, the laser generator 10 on one side of the first calibration tooling is at the central position of the stator hole of the generator stator 4; if the position of the laser spot deviates from the central hole on the second calibration tooling, according to the scale of the cheap, the formula θ = δ ⁄ L is used to calculate the angle, where θ is the angle between the laser emitted by the laser generator 10 on one side of the first calibration tooling and the axis of the stator hole of the generator stator 4, δ is the linear displacement of the laser on the second calibration tooling, and L is the distance between the first calibration tooling and the second calibration tooling. The angle is calculated by the formula, and the rotation angles of the horizontal and vertical coordinate axes are calculated using the result calculated by this formula. After adjustment, the up and down and horizontal lateral adjustments of the laser generator 10 on one side of the first calibration tooling are performed to achieve calibration, and the laser generator 10 on one side of the second calibration tooling is adjusted using the above principle.

[0033] The installation and calibration device for the dynamic feedback system for installing the generator set rotor proposed by the present invention includes a generator stator 4, a laser alignment device, and a calibration tooling. Among them, the calibration tooling includes a first calibration tooling and a second calibration tooling, and the laser alignment device includes a laser generator 10. During installation, the first calibration tooling and the second calibration tooling are respectively installed at both ends of the generator stator 4, and the central holes on the first calibration tooling and the second calibration tooling are concentric with the stator holes of the generator stator 4. First, the installation axis of the laser generator 10 is determined by a wire 3. The wire 3 is passed through the generator stator 4 and tightened after passing through the first calibration tooling and the second calibration tooling respectively to find the axis of the stator hole of the generator stator 4. According to this axis, the laser generator 10 is initially installed on one side of the first calibration tooling and the second calibration tooling at a preset axial distance from the first calibration tooling and the second calibration tooling;

[0034] When calibrating the generator stator 4, the laser emitted from the laser emission hole 8 on one side of the standard tooling one passes through the central hole on the calibration tooling one. At this time, record the position of the laser spot on the calibration tooling two. If the spot passes through the central hole on the calibration tooling two, the laser generator 10 on one side of the standard tooling one is at the central position of the stator hole of the generator stator 4; if the position of the spot deviates from the central hole on the calibration tooling two, according to the cheap scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by the laser generator 10 on one side of the standard tooling one and the axis of the stator hole of the generator stator 4, δ is the linear displacement of the laser on the calibration tooling two, and L is the distance between the calibration tooling one and the calibration tooling two. Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up and down and horizontal lateral adjustments of the laser generator 10 on one side of the standard tooling one to achieve calibration. Utilize the above principle to adjust the laser generator 10 on one side of the standard tooling two.

[0035] In this embodiment: The standard tooling one is the panel one 5, and the standard tooling two is the panel two 7. The panel one 5 and the panel two 7 are respectively made of transparent materials. The panel one 5 and the panel two 7 are respectively marked with concentric circle-shaped scales with the central hole as the center. The standard tooling one is the panel one 5, and the standard tooling two is the panel two 7, which are respectively installed at both ends of the generator stator 4. Among them, the panel one 5 and the panel two 7 are respectively made of transparent materials, which is convenient for observing the laser spot emitted by the laser generator 10. The panel one 5 and the panel two 7 are respectively marked with concentric circle-shaped scales with the central hole as the center, which is convenient for the staff to record the position information of the spot.

[0036] In this embodiment: It also includes a generator bracket and an installation platform 15. The generator bracket includes an installation fixing column 11 and a generator installation frame 13. The installation fixing column 11 is vertically installed on the generator installation frame 13. The installation platform 15 is movably installed on the installation fixing column 11 through a tightening device 12. A bottom plate 14 is fixedly installed on the installation platform 15. The laser generator 10 is fixedly installed on the installation platform 15 through the bottom plate 14. The installation fixing column 11 is vertically installed on the generator installation frame 13 to achieve the fixation and installation of the installation fixing column 11. The installation platform 15 is movably installed on the installation fixing column 11 through the tightening device 12, which is convenient for adjusting the position of the laser generator 10. A bottom plate 14 is fixedly installed on the installation platform 15, and the laser generator 10 is fixedly installed on the installation platform 15 through the bottom plate 14, achieving the fixation and installation of the laser generator 10.

[0037] In this embodiment: It also includes a handle 9, and the handle 9 is fixedly installed above the laser generator 10. By setting the handle 9, it is convenient for the installation and disassembly of the laser generator 10.

[0038] In this embodiment: There are two laser generators 10, namely laser generator one 1 and laser generator two 2, and the laser generator one 1 and the laser generator two 2 are respectively located on one side of panel one 5 and panel two 7.

[0039] In this embodiment: It further includes a wire rope 3. The wire rope 3 penetrates through the generator stator 4 and respectively passes through the central holes of panel one 5 and panel two 7 and is tensioned. When the wire rope 3 is tensioned, the horizontal position of the wire rope 3 is the axis of the stator hole of the generator stator 4, and the laser emission holes 8 on the laser generator one 1 and the laser generator two 2 are located on this axis. By providing the wire rope 3, the determination of the axis of the stator hole of the generator stator 4 is realized, thereby realizing the positioning and installation of the laser generator one 1 and the laser generator two 2. The wire rope 3 penetrates through the generator stator 4 and respectively passes through the central holes of panel one 5 and panel two 7 and is tensioned. When positioning the axis, the wire rope 3 penetrates through the generator stator 4 and respectively passes through the central holes of panel one 5 and panel two 7 and is tensioned. The horizontal position of the wire rope 3 is the axis of the stator hole of the generator stator 4, and the laser emission holes 8 on the laser generator one 1 and the laser generator two 2 are located on this axis.

[0040] In this embodiment: It further includes a generator bracket 6. There are two generator brackets 6, and the two generator brackets 6 are fixedly parallel to the ground, and the generator stator 4 is fixedly installed on the generator brackets 6. By providing the generator bracket 6, the installation and fixation of the generator stator 4 are realized.

[0041] The calibration method of the installation calibration device of the installation dynamic feedback system of the generator set rotor includes the following steps:

[0042] S1. Installation: Panel one 5 and panel two 7 are respectively installed at both ends of the generator stator 4. The central holes on panel one 5 and panel two 7 are concentric with the stator holes of the generator stator 4. Pass the wire rope 3 through the generator stator 4 and make it pass through panel one 5 and panel two 7 respectively and then tighten it. Find the axis of the stator hole of the generator stator 4, and according to this axis, initially install the laser generator one 1 and the laser generator two 2 on the installation fixing columns 11 respectively at a preset axial distance from panel one 5 and panel two 7, and appropriately adjust the positions and angles of the laser generator one 1 and the laser generator two 2.

[0043] S2. Calibration: After the initial installation and adjustment of Laser Generator 1 and Laser Generator 2, turn on Laser Generator 1 and finely adjust the installation platform 15 below Laser Generator 1 so that the laser emitted by Laser Generator 1 passes through the central hole on Panel 1 5. Record the position of the laser spot on Panel 2 7 at this time. If the spot passes through Panel 2 7, it means that Laser Generator 1 is at the central position of the stator hole of the generator stator 4. If the spot position deviates, according to the calibration scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by Laser Generator 1 and the axis of the stator hole of the generator stator 4, δ is the linear displacement of the laser on Panel 2 7, and L is the distance between Panel 1 5 and Panel 2 7. Calculate the angle through the formula and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up - down and horizontal lateral adjustment of Laser Generator 1. Similarly, Laser Generator 2 can be adjusted.

[0044] For actual use in a generator with a rotor length of 10 m, the wire - pulling method is used for preliminary adjustment. The two - section distances are 2 m respectively. The method of passing through the through - hole near one side is adopted, and the angle is , and after 4 adjustments, basic calibration is achieved. The specific data is as Figure 3 shown.

[0045] This method first uses structural parts to locate the centers at both ends of the rotor. On this basis, the wire - pulling 3 method is adopted to find the axis position and install the laser generators 10 at both ends. Then, the angle of the laser generators 10 is adjusted.

[0046] In the present invention, by first performing central positioning, the wire - pulling 3 method is relatively simple and reliable. Then, after angle adjustment and fine - tuning, as a system precision adjustment method, it can improve the precision more effectively. It is inexpensive, easy to operate, and does not require special instruments or complex training.

[0047] The above - mentioned are only the preferred embodiments of the present invention, and it is not limited to the present invention in any other form. Any modification or equivalent change made according to the technical essence of the present invention still belongs to the scope protected by the present invention.

Claims

1. Installation and calibration device for the installation dynamic feedback system of a generator set rotor, Characterized in that: It includes a generator stator (4), a laser alignment device and a calibration tooling. The calibration tooling includes a first calibration tooling and a second calibration tooling. The first calibration tooling and the second calibration tooling are respectively installed at opposite ends of the generator stator (4). Central holes are respectively provided on the first calibration tooling and the second calibration tooling, and the central holes are concentric with the stator holes of the generator stator (4). The laser alignment device includes a laser generator (10). The laser generator (10) is respectively located on one side of the first standard tooling and the second standard tooling. A laser emission hole (8) is provided on the laser generator (10), and the laser emission hole (8) is located on the same axis as the stator hole of the generator stator (4). When calibrating the generator stator (4), the laser emitted from the laser emission hole (8) on one side of the first standard tooling passes through the central hole on the first calibration tooling. At this time, record the position of the laser spot on the second calibration tooling. If the spot passes through the central hole on the second calibration tooling, the laser generator (10) on one side of the first standard tooling is at the central position of the stator hole of the generator stator (4); if the spot position deviates from the central hole on the second standard tooling, according to the cheap scale, use the formula θ = δ ⁄ L to calculate the angle. Where θ is the angle between the laser emitted by the laser generator (10) on one side of the first standard tooling and the axis of the stator hole of the generator stator (4), δ is the linear displacement of the laser on the second calibration tooling, and L is the distance between the first calibration tooling and the second calibration tooling. Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up-and-down and horizontal lateral adjustment of the laser generator (10) on one side of the first standard tooling to achieve calibration. Use the above principle to adjust the laser generator (10) on one side of the second standard tooling; The first standard tooling is a first panel (5), the second standard tooling is a second panel (7), the first panel (5) and the second panel (7) are respectively made of transparent materials, and the first panel (5) and the second panel (7) are respectively marked with concentric circle scales with the central hole as the center; There are two laser generators (10), namely a first laser generator (1) and a second laser generator (2), and the first laser generator (1) and the second laser generator (2) are respectively located on one side of the first panel (5) and the second panel (7); It also includes a pull wire (3). The pull wire (3) passes through the generator stator (4) and respectively passes through the central holes of the first panel (5) and the second panel (7) and is tensioned. When the pull wire (3) is tensioned, the horizontal position of the pull wire (3) is the axis of the stator hole of the generator stator (4), and the laser emission holes (8) on the first laser generator (1) and the second laser generator (2) are located on this axis.

2. The installation and calibration device for the installation dynamic feedback system of a generator set rotor according to claim 1, Characterized in that: It further includes a generator support and an installation platform (15). The generator support includes an installation fixing column (11) and a generator mounting frame (13). The installation fixing column (11) is vertically installed on the generator mounting frame (13). The installation platform (15) is movably installed on the installation fixing column (11) through a tightening device (12). A bottom plate (14) is fixedly installed on the installation platform (15), and the laser generator (10) is fixedly installed on the installation platform (15) through the bottom plate (14).

3. The installation and calibration device of the generator set rotor installation dynamic feedback system according to claim 2, characterized in that: it further includes a handle (9), and the handle (9) is fixedly installed above the laser generator (10).

4. The installation and calibration device of the generator set rotor installation dynamic feedback system according to claim 3, characterized in that: it further includes two generator supports (6). The two generator supports (6) are fixedly parallel to the ground, and the generator stator (4) is fixedly installed on the generator supports (6).

5. The calibration method of the installation and calibration device of the generator set rotor installation dynamic feedback system according to any one of claims 1-4, characterized in that it includes the following steps: S1. Installation: Panel 1 (5) and Panel 2 (7) are respectively installed at both ends of the generator stator (4). The central holes on Panel 1 (5) and Panel 2 (7) are concentric with the stator holes of the generator stator (4). Pass the wire (3) through the generator stator (4) and make it pass through Panel 1 (5) and Panel 2 (7) respectively, then tighten it to find the axis of the stator holes of the generator stator (4). According to this axis, initially install the first laser generator (1) and the second laser generator (2) on the installation fixing column (11) at a preset axial distance from Panel 1 (5) and Panel 2 (7), and appropriately adjust the positions and angles of the first laser generator (1) and the second laser generator (2). S2. Calibration: After the first laser generator (1) and the second laser generator (2) are initially installed and adjusted, turn on the first laser generator (1), finely adjust the installation platform (15) below the first laser generator (1) so that the laser emitted by the first laser generator (1) passes through the central hole on Panel 1 (5), and record the position of the laser spot on Panel 2 (7) at this time. If the spot passes through Panel 2 (7), it means that the first laser generator (1) is at the central position of the stator holes of the generator stator (4). If the spot position deviates, according to the deviation scale, use the formula θ = δ ⁄ L to calculate the angle, where θ is the angle between the laser emitted by the first laser generator (1) and the axis of the stator holes of the generator stator (4), δ is the linear displacement of the laser on Panel 2 (7), and L is the distance between Panel 1 (5) and Panel 2 (7). Calculate the angle through the formula, and use the result calculated by this formula to calculate the rotation angles of the horizontal and vertical coordinate axes. After adjustment, then perform the up-down and horizontal lateral adjustments of the first laser generator (1). Similarly, the second laser generator (2) can be adjusted.

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