Axis alignment correction system

Abstract

This invention proposes a shaft alignment correction system for use in generator sets, which include a generator, a transmission, and a coupling connecting their shafts. The shaft alignment correction system comprises a drive unit, a measurement unit, and a correction unit. The drive unit drives the transmission shaft to rotate. The measurement unit detects the shaft alignment of the generator and transmission shafts while they rotate, specifically checking if their centerlines are collinear. The correction unit adjusts the centerline position of the generator and / or transmission shafts to achieve shaft alignment correction. This invention provides real-time shaft alignment detection and correction for the generator and transmission shafts, offering a convenient and accurate process, reducing maintenance costs, minimizing manpower, and improving operational efficiency and safety. Furthermore, the shaft alignment correction system proposed in this invention offers advantages such as easy assembly and high versatility.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine maintenance technology, specifically to a shaft alignment correction system. Background Technology

[0002] The gearbox and generator are the core components of a doubly-fed wind turbine generator set, connected by a coupling. During operation, unstable loads can cause misalignment between the high-speed gearbox shaft and the generator shaft at both ends of the coupling, leading to vibration of the transmission shaft system and accelerated equipment wear. Therefore, regular alignment checks and adjustments of the coupling are necessary.

[0003] Currently, traditional alignment operations mainly rely on manual labor, which has the following obvious shortcomings: First, it requires manual operation to rotate the heavy brake disc to measure the coupling, a process that is time-consuming, labor-intensive, and highly dangerous; second, as the unit capacity increases and the generator weight increases, the difficulty of manually adjusting its bottom elastic support increases significantly; third, the operating space near the elastic support is narrow, requiring multiple minor adjustments, which is inefficient; finally, the entire process usually requires 2-3 people to work together, resulting in a large workload and high costs.

[0004] Therefore, there is a lack of existing technologies for an automated measurement and alignment utility model that can effectively reduce labor intensity, improve operational safety and alignment efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve at least some of the technical problems mentioned above, and this purpose is achieved through the following technical utility model: In a first aspect, this utility model proposes a shaft alignment correction system applied to a generator set. The generator set includes a generator, a gearbox, and a coupling. The generator has a first rotating shaft, and the gearbox has a second rotating shaft. The coupling connects the first rotating shaft and the second rotating shaft. The shaft alignment correction system includes a drive unit, a measuring unit, and a correction unit. The drive unit is driven and connected to the second rotating shaft and can drive the second rotating shaft to rotate. The measuring unit is located in the coupling and can detect whether the centerline of the first rotating shaft and the centerline of the second rotating shaft are collinear. The correction unit is located in the generator and can adjust the position of the centerline of the first rotating shaft, and / or, is located in the gearbox and can adjust the position of the centerline of the second rotating shaft.

[0006] In some embodiments, the drive unit includes a drive device and a braking device. The drive device is driven to the second rotating shaft and can drive the second rotating shaft to rotate at a set angular velocity. The braking device is mounted on the transmission and can brake the rotation of the second rotating shaft.

[0007] In some embodiments, the drive device includes a driver, a first bracket, and a first gear. The first bracket is connected to the transmission, the driver is mounted on the first bracket, and the driver is drivenly connected to the first gear. The transmission also includes a second gear, which is connected to a second shaft and meshes with the first gear.

[0008] In some embodiments, the braking device includes a brake caliper and a second bracket. The second bracket is connected to the transmission, the brake caliper is mounted on the second bracket, and the brake caliper is brakely connected to a second gear. When the second gear needs to stop, the brake caliper clamps the second gear.

[0009] In some embodiments, the coupling includes a first end and a second end disposed opposite to each other, the first end being close to and rotating with the first shaft, and the second end being close to and rotating with the second shaft; the measuring unit includes a signal output section and a signal input section, the signal output section being disposed at one of the first end and the second end, and the signal input section being disposed at the other of the first end and the second end.

[0010] In some embodiments, the measuring unit further includes a sensing component mounted on the braking device, which can sense the distance and position of the signal output or signal input relative to the sensing component.

[0011] In some embodiments, the sensing component includes a first sensor and a second sensor, which are mounted at opposite ends of the braking device. When one of the first sensor and the second sensor senses a signal output or a signal input, the second rotating shaft rotates in the opposite direction.

[0012] In some embodiments, when one of the first sensor and the second sensor detects that the distance between the signal output section or the signal input section and the second sensor is less than a preset distance, the braking device brakes the second rotating shaft to rotate.

[0013] In some embodiments, the correction unit includes an adjustment component and an elastic support member, the elastic support member being mounted on the generator, and the adjustment component being connected to the elastic support member and capable of adjusting the position of the axis of the first rotating shaft.

[0014] In some embodiments, the adjustment assembly includes a first adjustment device and a second adjustment device. The first adjustment device can adjust the position of the first rotating shaft along a first direction, and the second adjustment device can adjust the position of the first rotating shaft along a second direction; wherein the first direction, the second direction, and the axial direction of the first rotating shaft are perpendicular to each other.

[0015] The technical utility model proposed in this application has at least the following technical effects: This invention proposes a shaft alignment correction system for use in generator sets. The generator set includes a generator, a transmission, and a coupling connecting their shafts. The shaft alignment correction system includes a drive unit, a measurement unit, and a correction unit. The drive unit drives the transmission shaft to rotate. The measurement unit detects the rotation of both the generator and transmission shafts, specifically checking if their centerlines are collinear. The correction unit adjusts the centerline position of the generator and / or transmission shafts to achieve shaft alignment correction. This invention provides real-time shaft alignment detection and correction for both the generator and transmission shafts. The process is convenient, the correction results are accurate, and it reduces maintenance costs, manpower, and improves operational efficiency and safety. Furthermore, the shaft alignment correction system proposed in this invention offers advantages such as easy assembly and high versatility. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical utility model in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an isometric drawing of an axis alignment correction system according to an embodiment of this application; Figure 2 This is an isometric view of the drive device of a shaft alignment correction system according to an embodiment of this application; Figure 3 This is a front view of the drive device of a shaft alignment system according to an embodiment of this application; Figure 4 This is a front view of the adjustment component of an axis alignment correction system according to an embodiment of this application; Figure 5 This is a top view of the adjustment component of an axis alignment correction system according to an embodiment of this application; Figure 6 This is a front view of the measuring unit of a shaft alignment system according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 1. Drive unit; 10. Drive device; 11. Braking device; 101. Driver; 102. First bracket; 103. First gear; 111. Brake caliper; 112. Second bracket; 2. Measurement unit; 20. Signal output unit; 21. Signal input unit; 22. Sensing assembly; 221. First sensor; 3. Correction unit; 30. Adjustment assembly; 31. Elastic support; 301. First adjustment device; 302. Second adjustment device; 4. Generator; 5. Gearbox; 501. Second gear; 6. Coupling; Z, first direction; X, second direction. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to impose strict limitations on the technical solutions unless the context clearly indicates otherwise. For example, the use of "a," "an," and "" to modify a feature does not exclude the possibility that the feature may be plural in other embodiments.

[0021] It should be understood that the terms "comprising," "including," and "having" are open-ended, indicating the presence of the stated features but not excluding the possibility of other features in the embodiment. Similarly, the use of terms such as "first," "second," etc., to describe multiple features only indicates the distinction between one feature and another, and such terms do not imply order or sequence unless explicitly stated in the context.

[0022] It should be understood that, unless the context clearly indicates otherwise, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a direct connection or an indirect connection via a medium. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0023] In addition, for ease of description, the text will use terms of spatial relative relationship to describe the position of one feature relative to another feature, such as "inner", "outer", "end", "side", "upper", "middle", "lower", "high", "low", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. It can be understood that the spatial relative relationship between two features should include other specific situations besides those shown in the accompanying drawings of the specification.

[0024] According to the embodiments of this application, referring to Figures 1 to 6 This utility model proposes a shaft alignment correction system for use in a generator set. The generator set includes a generator 4, a transmission 5, and a coupling 6. The generator 4 has a first rotating shaft, and the transmission 5 has a second rotating shaft. The coupling 6 connects the first rotating shaft and the second rotating shaft. The shaft alignment correction system includes a drive unit 1, a measuring unit 2, and a correction unit 3. The drive unit 1 is driven and connected to the second rotating shaft and can drive the second rotating shaft to rotate. The measuring unit 2 is located in the coupling 6 and can detect whether the centerline of the first rotating shaft and the centerline of the second rotating shaft are collinear. The correction unit 3 is located in the generator 4 and can adjust the position of the centerline of the first rotating shaft, and / or, is located in the transmission 5 and can adjust the position of the centerline of the second rotating shaft.

[0025] In this embodiment, the shaft alignment correction system coordinates the control drive unit 1, measurement unit 2, and correction unit 3 to perform measurement alignment and adjustment alignment. The drive unit 1 drives the rotating shafts of the generator and transmission and the coupling connecting them to rotate. During the rotation, the measurement unit 2 measures whether the center lines of the rotating shafts of the generator and transmission are collinear, obtaining real-time measurement data. The correction unit 3 corrects the rotating shafts of the generator 4 and / or transmission 5 based on the measurement data, changing the position of their center lines to achieve shaft alignment correction. This solution is easy to assemble, reduces maintenance costs, reduces manual labor, and improves operational efficiency, safety, and adaptability.

[0026] In some embodiments, refer to Figure 1 The drive unit 1 includes a drive device 10 and a braking device 11. The drive device 10 is driven to the second rotating shaft and can drive the second rotating shaft to rotate at a set angular velocity. The braking device 11 is installed on the transmission 5 and can brake the rotation of the second rotating shaft.

[0027] In some embodiments, refer to Figure 1 The drive unit 10 includes a driver 101, a first bracket 102, and a first gear 103. The first bracket 102 is connected to the transmission 5, the driver 101 is mounted on the first bracket 102, and the driver 101 is drivenly connected to the first gear 103. The transmission 5 also includes a second gear 501, which is connected to the second rotating shaft and meshes with the first gear 103.

[0028] Specifically, the driver 101 provides power to the first gear 103 and starts to rotate. The first gear 103 meshes with the second gear 501, driving the second gear 501 and the second shaft to rotate, thereby driving the coupling 6 and the first shaft to rotate synchronously.

[0029] In some embodiments, refer to Figure 1 The braking device 11 includes a brake caliper 111 and a second bracket 112. The second bracket 112 is connected to the transmission 5. The brake caliper 111 is mounted on the second bracket 112. The brake caliper 111 is brakedly connected to the second gear 501. When the second gear 501 needs to stop, the brake caliper 111 clamps the second gear 501.

[0030] Optionally, the braking device 11 may be installed in the transmission 5, the first bracket 102, or other parts.

[0031] Specifically, the brake caliper 111 clamps the second gear 501 by applying pressure through an externally connected pressurization station.

[0032] In some embodiments, refer to Figure 1 The coupling 6 includes a first end and a second end that are arranged opposite to each other. The first end is close to the first rotating shaft and rotates with the first rotating shaft, and the second end is close to the second rotating shaft and rotates with the second rotating shaft. The measuring unit 2 includes a signal output part 20 and a signal input part 21. The signal output part 20 is located at one of the first end and the second end, and the signal input part 21 is located at the other of the first end and the second end.

[0033] In this embodiment, the signal output section 20 is located at the first end, and the signal input section 21 is located at the second end.

[0034] In some embodiments, refer to Figure 1 and Figure 6 The measuring unit 2 also includes a sensing component 22, which is mounted on the braking device 11. The sensing component 22 can sense the distance and position of the signal output unit 20 or the signal input unit 21 relative to the sensing component 22.

[0035] In this embodiment, the sensing component 22 can sense the distance and position of the signal input unit 21 relative to the sensing component 22.

[0036] In some embodiments, refer to Figure 1 and Figure 6The sensing component 22 includes a first sensor 221 and a second sensor. The first sensor 221 and the second sensor are mounted on opposite ends of the brake caliper 111. When either the first sensor 221 or the second sensor senses the signal output section 20 or the signal input section 21, the second rotating shaft rotates in the opposite direction.

[0037] Specifically, the first sensor 221 and the second sensor are installed at opposite ends of the brake caliper 111. When the signal input part 21 approaches one of them, the driver 101 drives the first gear 103 to rotate in the opposite direction, thereby causing the second shaft to rotate in the opposite direction.

[0038] In some embodiments, refer to Figure 1 and Figure 6 When either the first sensor 221 or the second sensor detects that the distance between the signal output unit 20 or the signal input unit 21 and the second sensor is less than a preset distance, the braking device 11 brakes the second rotating shaft to rotate.

[0039] In this embodiment, when the distance between the signal input unit 21 and the first sensor 221 or the second sensor is less than a preset distance, the braking device 11 brakes the second gear 501, and the second gear 501 drives the second rotating shaft to achieve the braking effect.

[0040] In some embodiments, refer to Figure 1 The correction unit 3 includes an adjustment component 30 and an elastic support 31. The elastic support 31 is installed on the generator 4, and the adjustment component 30 is connected to the elastic support 31 and can adjust the position of the axis of the first rotating shaft.

[0041] Specifically, the elastic support 31 has a threaded adjustable structure in the first direction Z and an elastic support structure in the second direction X.

[0042] In some embodiments, refer to Figure 3 and Figure 4 The adjustment assembly 30 includes a first adjustment device 301 and a second adjustment device 302. The first adjustment device 301 can adjust the position of the first rotating shaft along the first direction Z, and the second adjustment device 302 can adjust the position of the first rotating shaft along the second direction X. The first direction Z, the second direction X and the axis of the first rotating shaft are perpendicular to each other.

[0043] In particular, such as Figure 1 As shown, a spatial rectangular coordinate system is established with the axis of the first rotation axis as the third direction Y, and the second direction X, the third direction Y, and the first direction Z as the directions of the three coordinate axes.

[0044] In this embodiment, the first adjustment device 301 is an electric wrench, which achieves correction in the first direction Z by rotating the elastic support 31; The second adjustment device 302 is an electric wrench, which achieves correction in the second direction X by rotating the elastic support 31 in the elastic structure of the second direction X.

[0045] Specifically, the adjustment distance of the elastic support 31 in the first direction Z and the second direction X is calculated based on the pitch × number of rotations (angle); the adjustment direction is controlled based on the data provided by the measuring unit 2.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A shaft alignment system applied to a generator set, the generator set comprising a generator (4), a gearbox (5), and a coupling (6), wherein the generator (4) has a first rotating shaft, the gearbox (5) has a second rotating shaft, and the coupling (6) is connected between the first rotating shaft and the second rotating shaft, characterized in that, The axis alignment correction system includes: The drive unit (1) is connected to the second rotating shaft and can drive the second rotating shaft to rotate; The measuring unit (2), located on the coupling (6), can detect whether the center line of the first rotating shaft and the center line of the second rotating shaft are collinear; The correction unit (3) is located on the generator (4) and can adjust the position of the axis of the first rotating shaft, and / or is located on the transmission (5) and can adjust the position of the axis of the second rotating shaft.

2. The shaft alignment correction system according to claim 1, characterized in that, The drive unit (1) includes a drive device (10) and a braking device (11). The drive device (10) is driven to the second shaft and can drive the second shaft to rotate at a set angular velocity. The braking device (11) is installed on the transmission (5) and can brake the rotation of the second shaft.

3. The shaft alignment correction system according to claim 2, characterized in that, The drive device (10) includes a driver (101), a first bracket (102), and a first gear (103). The first bracket (102) is connected to the transmission (5), the driver (101) is mounted on the first bracket (102), and the driver (101) is drivenly connected to the first gear (103). The transmission (5) further includes a second gear (501), which is connected to the second shaft and meshes with the first gear (103).

4. The shaft alignment correction system according to claim 3, characterized in that, The braking device (11) includes a brake caliper (111) and a second bracket (112). The second bracket (112) is connected to the transmission (5). The brake caliper (111) is mounted on the second bracket (112). The brake caliper (111) is brakedly connected to the second gear (501). When the second gear (501) needs to stop, the brake caliper (111) clamps the second gear (501).

5. The shaft alignment correction system according to claim 2, characterized in that, The coupling (6) includes a first end and a second end disposed opposite to each other. The first end is close to the first rotating shaft and rotates with the first rotating shaft, and the second end is close to the second rotating shaft and rotates with the second rotating shaft. The measurement unit (2) includes a signal output section (20) and a signal input section (21). The signal output section (20) is located at one of the first end and the second end, and the signal input section (21) is located at the other of the first end and the second end.

6. The shaft alignment correction system according to claim 5, characterized in that, The measuring unit (2) further includes a sensing component (22), which is installed on the braking device (11). The sensing component (22) can sense the distance and position of the signal output unit (20) or the signal input unit (21) relative to the sensing component (22).

7. The shaft alignment correction system according to claim 6, characterized in that, The sensing component (22) includes a first sensor (221) and a second sensor. The first sensor (221) and the second sensor are installed at opposite ends of the braking device. When either the first sensor (221) or the second sensor senses the signal output unit (20) or the signal input unit (21), the second rotating shaft rotates in the opposite direction.

8. The shaft alignment correction system according to claim 7, characterized in that, When either the first sensor (221) or the second sensor senses that the distance between the signal output unit (20) or the signal input unit (21) and the second sensor is less than a preset distance, the braking device (11) brakes the second rotating shaft to rotate.

9. The shaft alignment correction system according to claim 1, characterized in that, The correction unit (3) includes an adjustment component (30) and an elastic support (31). The elastic support (31) is installed on the generator (4). The adjustment component (30) is connected to the elastic support (31) and can adjust the position of the axis of the first rotating shaft.

10. The shaft alignment correction system according to claim 9, characterized in that, The adjustment assembly (30) includes a first adjustment device (301) and a second adjustment device (302). The first adjustment device (301) can adjust the position of the first rotating shaft along the first direction (Z), and the second adjustment device (302) can adjust the position of the first rotating shaft along the second direction (X). The first direction (Z), the second direction (X) and the axis of the first rotating shaft are perpendicular to each other.

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