Electric field ge fan main shaft displacement adjusting device

Abstract

The application relates to an electric field GE fan main shaft displacement adjusting device and relates to the technical field of wind power generation, and comprises a fan body. The application is provided with a detection mechanism which is annularly arranged on the surface of the main shaft body and internally provided with multiple groups of laser displacement sensors. During work, the laser displacement sensors can comprehensively and timely monitor the displacement of the main shaft body and transmit data to an external controller. The process solves the problem that the existing detection device cannot timely and accurately detect slight displacement, can timely find the displacement hidden danger of the main shaft body, and provides accurate data support for subsequent adjustment; the adjusting mechanism is provided with multiple groups and is annularly and uniformly distributed on the front side of the cabin cover. After the external controller receives the displacement signal transmitted by the detection mechanism, the corresponding forward and reverse motors are controlled to operate, the output shaft of the forward and reverse motors drives the threaded column to rotate, the threaded column is in threaded connection with the movable plate, the movable plate drives the top block to move to push the main shaft body.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a device for adjusting the displacement of the main shaft of a GE wind turbine in an electric field. Background Technology

[0002] In the field of wind power generation, the stable operation of wind turbines is crucial. The main shaft of a GE wind turbine, as a key component, plays a vital role in transmitting torque and supporting the rotor. However, during long-term operation, the main shaft is susceptible to displacement due to various factors such as complex wind environments, mechanical vibrations, and component wear. Displacement of the main shaft not only reduces the turbine's power generation efficiency but can also trigger a series of serious problems, such as damage to the gearbox's elastic support, interference between the bolts connecting the main shaft to the hub flange and the nacelle platform, and damage to the universal joint connecting the gearbox and generator. It may even jeopardize the safe operation of the gearbox, severely impacting the stable operation and lifespan of the wind turbine.

[0003] Existing methods for detecting and adjusting the displacement of the main shaft in existing wind turbine equipment have many shortcomings. On the one hand, some detection devices cannot detect minute displacement changes in the main shaft in a timely and accurate manner, leading to delayed fault detection. On the other hand, even if the main shaft displacement is detected, existing adjustment devices are often complex in structure and inconvenient to operate, making it difficult to achieve rapid and precise adjustments, and thus failing to meet the demands of efficient and stable wind turbine operation in actual production. Therefore, developing a device capable of real-time and accurate detection of main shaft displacement and rapid and effective adjustment is of significant practical importance. To this end, an electric field GE wind turbine main shaft displacement adjustment device is provided. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this application is to provide an electric field GE fan main shaft displacement adjustment device, which has the characteristics of being able to detect the displacement of the main shaft body in real time and accurately, and to make adjustments quickly and effectively.

[0006] This application provides a GE wind turbine main shaft displacement adjustment device with the following technical solution: It includes a wind turbine body, comprising a tower, a nacelle, a main shaft body, and a wind turbine rotor. The nacelle is mounted on the upper end of the tower, and the main shaft body is rotatably connected to the front end of the nacelle. The wind turbine rotor is mounted on the front end of the main shaft body. The device is characterized by: a detection mechanism fixedly connected to the front side of the nacelle; the detection mechanism is annularly sleeved on the surface of the main shaft body and contains multiple sets of displacement sensors; and an adjustment mechanism fixedly connected to the front side of the nacelle, comprising multiple sets of adjustment mechanisms, evenly arranged in a ring on the front side of the nacelle with the main shaft body as the central axis; the adjustment mechanism includes... The device includes an outer casing, which is fixedly connected to the front side of the nacelle cover. A forward and reverse motor is fixedly connected inside the outer casing. A threaded post is provided at the lower end of the output shaft of the forward and reverse motors. The lower end of the threaded post extends through to a movable plate, and the threaded post is threadedly connected to a threaded hole inside the movable plate. A top block is fixedly connected to the lower end of the movable plate. Multiple sets of displacement sensors inside the detection mechanism and the forward and reverse motors are electrically connected to an external controller that has a preset normal displacement threshold for the main shaft body. The multiple sets of displacement sensors inside the detection mechanism are used to detect the displacement of the main shaft body from all directions. The external controller can control multiple sets of forward and reverse motors to operate independently based on the displacement data, thereby achieving the alignment of the main shaft body within the fan body.

[0007] By adopting the above technical solution, a detection mechanism is set up, which is a ring-shaped device fitted onto the surface of the main shaft body and contains multiple sets of laser displacement sensors. During operation, the laser displacement sensors can monitor the displacement of the main shaft body in all directions and in real time, transmitting the data to an external controller. This process solves the problem that existing detection devices cannot detect minute displacements in a timely and accurate manner, enabling the timely detection of potential displacement hazards in the main shaft body, providing precise data support for subsequent adjustments, and ensuring the safety of the fan operation. Multiple adjustment mechanisms are set up in a ring-shaped, evenly distributed on the front side of the nacelle cover. Each adjustment mechanism includes a shell, a forward and reverse motor, a threaded column, a movable plate, and a top block. When the external controller receives the displacement signal from the detection mechanism, it controls the corresponding forward and reverse motors to operate. The output shafts of the forward and reverse motors drive the threaded column to rotate, and the threaded column is threadedly connected to the movable plate, causing the movable plate to move the top block to push the main shaft body. This structural design solves the problems of complex structure and inconvenient operation of existing adjustment devices, enabling rapid and accurate adjustment of the main shaft body and ensuring efficient fan operation.

[0008] Preferably, sliders are fixedly connected to both the left and right sides of the upper end of the movable plate, and ball bearings are rotatably connected inside the sliders on the side away from the movable plate. A groove is provided inside the outer shell, and the ball bearings are rotatably connected inside the groove.

[0009] By adopting the above technical solution, the slider and ball on the upper end of the movable plate cooperate with the sliding groove inside the housing. When the movable plate moves, the rolling of the ball greatly reduces the frictional resistance between the slider and the sliding groove, making the movement of the movable plate smoother and more stable. This improves the accuracy and stability of the top block's adjustment of the main shaft body, reduces mechanical wear, and extends the service life of the components.

[0010] Preferably, the forward and reverse motors are connected to the threaded column via a coupling, and the coupling is a flexible coupling.

[0011] By adopting the above technical solution, the forward and reverse motors and the threaded column are connected by a flexible coupling. The flexible coupling can effectively compensate for the installation error between the two, while buffering the vibration generated during operation, ensuring the smoothness of power transmission, reducing the impact of vibration on the components of the adjustment mechanism, reducing the risk of component damage, and thus ensuring the accuracy and reliability of the spindle body adjustment.

[0012] Preferably, a contact pad is provided at the end of the top block away from the movable plate, and the contact pad is made of wear-resistant rubber material.

[0013] By adopting the above technical solution, the wear-resistant rubber contact pad on the top block can avoid hard collision and friction between the top block and the spindle body when it contacts the spindle body for adjustment, thus protecting the surface of the spindle body from damage. The wear-resistant properties extend the service life of the contact pad, while the anti-slip texture increases the friction between the top block and the spindle body, preventing slippage during the adjustment process and ensuring the adjustment effect.

[0014] Preferably, the outer shell is made of stainless steel, the surface of the outer shell is coated with an anti-corrosion coating, a heat dissipation hole is provided on one side of the outer shell, and a dustproof mesh is installed inside the heat dissipation hole.

[0015] By adopting the above technical solutions, the outer casing is made of stainless steel and coated with an anti-corrosion coating, which significantly improves the corrosion resistance and wear resistance of the outer casing, making it suitable for the complex outdoor working environment of the fan; the setting of heat dissipation holes helps to dissipate heat from components such as the positive and negative motors inside the casing, preventing performance from being affected by overheating; the dustproof net can block external dust from entering the interior of the casing, protect the internal components from malfunctions, reduce maintenance costs.

[0016] Preferably, the threaded post is made of high-strength alloy steel and has an anti-rust coating on its surface.

[0017] By adopting the above technical solution, the threaded column is made of high-strength alloy steel, which has high mechanical strength and toughness, can withstand the large force generated during the adjustment process, and is not easy to deform or break, thus ensuring the stability of the threaded transmission; the anti-rust coating on the surface effectively resists the corrosion of the external environment, extends the service life of the threaded column, and ensures the long-term reliable operation of the adjustment mechanism.

[0018] Preferably, the movable plate is made of a lightweight alloy material, and the edges of the movable plate are rounded.

[0019] By adopting the above technical solution, the movable plate is made of lightweight alloy material, which reduces its own weight, reduces the driving load of the forward and reverse motors, saves energy, and makes the movable plate move more flexibly. The rounded corners of the edges prevent sharp corners from causing scratches and damage to operators or other parts, improving the safety and ease of use of the device.

[0020] Preferably, the displacement sensor inside the detection mechanism is a laser displacement sensor.

[0021] By adopting the above technical solution, the detection mechanism uses a laser displacement sensor. The laser displacement sensor has the characteristics of high detection accuracy and fast response speed, which can more accurately capture the minute displacement changes of the spindle body, provide more reliable detection data for the external controller, ensure the accuracy of the spindle body displacement judgment, and thus improve the accuracy and timeliness of the entire device adjustment.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This electric field GE fan main shaft displacement adjustment device features a detection mechanism that is ring-shaped and fitted onto the main shaft body, housing multiple sets of laser displacement sensors. During operation, the laser displacement sensors monitor the main shaft body's displacement in all directions and in real time, transmitting the data to an external controller. This process solves the problem of existing detection devices being unable to detect minute displacements in a timely and accurate manner, enabling the timely detection of potential main shaft body displacement issues and providing precise data support for subsequent adjustments, ensuring the fan's operational safety. Multiple adjustment mechanisms are evenly distributed in a ring on the front side of the nacelle cover. Each adjustment mechanism includes a housing, a forward and reverse motor, a threaded column, a movable plate, and a top block. When the external controller receives the displacement signal from the detection mechanism, it controls the corresponding forward and reverse motors. The output shafts of these motors drive the threaded column to rotate, and the threaded column is threadedly connected to the movable plate, causing the movable plate to move the top block to push against the main shaft body. This structural design solves the problems of complex structure and inconvenient operation of existing adjustment devices, enabling rapid and accurate adjustment of the main shaft body and ensuring efficient fan operation. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present application.

[0025] Figure 2 This is a partially enlarged three-dimensional structural schematic diagram of this application;

[0026] Figure 3 This is a partial cross-sectional structural diagram of this application;

[0027] Figure 4 This is a cross-sectional structural diagram of the regulating mechanism in this application;

[0028] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0029] In the picture:

[0030] 1. Wind turbine body; 101. Tower; 102. Nacelle cover; 103. Main shaft body; 104. Wind turbine; 2. Detection mechanism; 3. Adjustment mechanism; 301. Outer shell; 302. Forward and reverse motor; 303. Threaded column; 304. Movable plate; 305. Top block; 306. Sliding block; 307. Ball bearing; 308. Slide groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0032] Example 1: An electric field GE fan main shaft displacement adjustment device, referring to Figure 1 , Figure 3 and Figure 4The system includes a wind turbine body 1, which comprises a tower 101, a nacelle cover 102, a main shaft body 103, and a wind turbine 104. The nacelle cover 102 is mounted on the upper end of the tower 101, and the main shaft body 103 is rotatably connected to the front end of the nacelle cover 102. The wind turbine 104 is mounted on the front end of the main shaft body 103. The system is characterized by: a detection mechanism 2 fixedly connected to the front side of the nacelle cover 102; the detection mechanism 2 is annularly fitted onto the surface of the main shaft body 103 and contains multiple sets of displacement sensors; and an adjustment mechanism 3 fixedly connected to the front side of the nacelle cover 102, comprising multiple sets of adjustment mechanisms evenly arranged in a ring around the main shaft body 103; the adjustment mechanism 3 includes a housing 301 fixedly connected to the front side of the nacelle cover 102, and internally fixedly connected to a positive and negative... The motor 302 has a threaded post 303 at the lower end of its output shaft. The lower end of the threaded post 303 extends through to the movable plate 304, and the threaded post 303 is threadedly connected to a threaded hole inside the movable plate 304. A top block 305 is fixedly connected to the lower end of the movable plate 304. Multiple displacement sensors inside the detection mechanism 2, along with the motors 302, are electrically connected to an external controller that has a preset normal displacement threshold for the main shaft body 103. The multiple displacement sensors inside the detection mechanism 2 are used to detect the displacement of the main shaft body 103 from all directions. The external controller can control the multiple motors 302 to operate independently based on the displacement data, thereby adjusting the main shaft body 103 in the fan body 1. The detection mechanism 2 is a ring-shaped device fitted onto the surface of the main shaft body 103 and contains multiple laser displacement sensors. During operation, the laser displacement sensors can monitor the displacement of the main shaft body 103 from all directions in real time and transmit the data to the external controller. This process solves the problem that existing detection devices cannot detect minute displacements in a timely and accurate manner. It can promptly detect potential displacement hazards in the main shaft body 103, providing accurate data support for subsequent adjustments and ensuring the safety of the fan operation. Multiple adjustment mechanisms 3 are arranged in a ring-shaped, evenly distributed on the front side of the nacelle cover 102. Each adjustment mechanism 3 includes a housing 301, a forward / reverse motor 302, a threaded column 303, a movable plate 304, and a top block 305. When the external controller receives a displacement signal from the detection mechanism 2, it controls the corresponding forward / reverse motor 302 to operate. The output shaft of the forward / reverse motor 302 drives the threaded column 303 to rotate. The threaded column 303 is threadedly connected to the movable plate 304, causing the movable plate 304 to move the top block 305 to push the main shaft body 103. This structural design solves the problems of complex structure and inconvenient operation of existing adjustment devices, enabling rapid and accurate adjustment of the main shaft body 103 and ensuring efficient fan operation.

[0033] Reference Figure 1 , Figure 4 and Figure 5Sliders 306 are fixedly connected to both the left and right sides of the upper end of the movable plate 304. A ball bearing 307 is rolled inside the slider 306 on the side away from the movable plate 304. A groove 308 is provided inside the outer casing 301, and the ball bearing 307 is rolled inside the groove 308. The forward and reverse motor 302 is connected to the threaded column 303 via a coupling, and the coupling is a flexible coupling. The slider 306 and ball bearing 307 on the upper end of the movable plate 304 cooperate with the groove 308 inside the outer casing 301. When the movable plate 304 moves, the rolling motion of the ball bearing 307 significantly reduces the contact between the slider 306 and the groove 307. The frictional resistance between the grooves 308 makes the movement of the movable plate 304 smoother and more stable, improves the accuracy and stability of the top block 305 in adjusting the main shaft body 103, reduces mechanical wear, and extends the service life of the components. The forward and reverse motors 302 and the threaded column 303 are connected by an elastic coupling. The elastic coupling can effectively compensate for the installation error between the two, while buffering the vibration generated during operation, ensuring the smoothness of power transmission, reducing the impact of vibration on the components of the adjustment mechanism 3, reducing the risk of component damage, and thus ensuring the accuracy and reliability of the adjustment of the main shaft body 103.

[0034] Reference Figure 1 , Figure 3 and Figure 4 The top block 305 has a contact pad at the end furthest from the movable plate 304. This contact pad is made of wear-resistant rubber. The outer shell 301 is made of stainless steel and has an anti-corrosion coating. A heat dissipation hole is located on one side of the outer shell 301, and a dust filter is installed inside the hole. The wear-resistant rubber contact pad on the top block 305 prevents hard collisions and friction between the top block 305 and the spindle body 103 during adjustment, protecting the surface of the spindle body 103 from damage. The wear-resistant properties extend the service life of the contact pad. The anti-slip texture increases the friction between the top block 305 and the main shaft body 103, preventing slippage during the adjustment process and ensuring the adjustment effect. The housing 301 is made of stainless steel and coated with an anti-corrosion coating, which significantly improves the corrosion resistance and wear resistance of the housing 301, making it suitable for the complex outdoor working environment of the fan. The heat dissipation holes help dissipate heat from components such as the forward and reverse motors 302 inside the housing 301, preventing performance from being affected by overheating. The dustproof mesh can block external dust from entering the housing 301, protecting the internal components, reducing the occurrence of failures, and lowering maintenance costs.

[0035] Reference Figure 1 , Figure 3 and Figure 5The threaded column 303 is made of high-strength alloy steel with an anti-rust coating. The movable plate 304 is made of lightweight alloy steel with rounded edges. The displacement sensor inside the detection mechanism 2 is a laser displacement sensor. The threaded column 303, made of high-strength alloy steel, possesses high mechanical strength and toughness, capable of withstanding the large forces generated during adjustment, and is not easily deformed or broken, ensuring the stability of the threaded transmission. The anti-rust coating effectively resists corrosion from the external environment, extending the service life of the threaded column 303 and ensuring the long-term reliable operation of the adjustment mechanism 3. The movable plate 304 is made of... The lightweight alloy material reduces its own weight, lowers the driving load of the forward and reverse motors 302, saves energy, and makes the movable plate 304 move more flexibly. The rounded corners of the edges prevent sharp corners from scratching and damaging operators or other parts, improving the safety and ease of use of the device. The detection mechanism 2 uses a laser displacement sensor, which has the characteristics of high detection accuracy and fast response speed. It can more accurately capture the minute displacement changes of the spindle body 103, providing more reliable detection data for the external controller, ensuring the accuracy of the displacement judgment of the spindle body 103, thereby improving the accuracy and timeliness of the entire device adjustment.

[0036] In this embodiment, a detection mechanism 2 is provided, which is a ring-shaped device fitted onto the surface of the main shaft body 103 and contains multiple sets of laser displacement sensors. During operation, the laser displacement sensors can monitor the displacement of the main shaft body 103 in all directions and in real time, and transmit the data to an external controller. This process solves the problem that existing detection devices cannot detect minute displacements in a timely and accurate manner, and can promptly detect potential displacement hazards of the main shaft body 103, providing accurate data support for subsequent adjustments and ensuring the safety of the fan operation. Multiple adjustment mechanisms 3 are provided in a ring-shaped arrangement on the front side of the nacelle cover 102. Each adjustment mechanism 3 includes a housing 301, a forward and reverse motor 302, a threaded column 303, a movable plate 304, and a top block 305. When the external controller receives the displacement signal from the detection mechanism 2, it controls the corresponding forward and reverse motor 302 to operate. The output shaft of the forward and reverse motor 302 drives the threaded column 303 to rotate. The threaded column 303 is threadedly connected to the movable plate 304, causing the movable plate 304 to move the top block 305 to push the main shaft body 103. This structural design solves the problems of complex structure and inconvenient operation of existing adjustment devices, and can quickly and accurately adjust the main shaft body 103 to ensure efficient operation of the fan.

[0037] The implementation principle of this application embodiment is as follows: When the fan body 1 is running, the detection mechanism 2 continuously monitors the main shaft body 103. The detection mechanism 2, as a component ring-shaped on the surface of the main shaft body 103, has multiple sets of laser displacement sensors inside that capture the position information of the main shaft body 103 from all directions and transmit the real-time data to the external controller. The external controller has a preset normal displacement threshold for the main shaft body 103. After receiving the data from the detection mechanism 2, it judges the displacement of the main shaft body 103. When the displacement of the main shaft body 103 exceeds the normal threshold, the external controller determines the adjustment mechanism 3 to be activated based on the direction and degree of displacement. The housing 301 of the adjustment mechanism 3 is fixed to the front side of the nacelle cover 102. When the external controller issues a command, the corresponding forward and reverse motors 302 inside the adjustment mechanism 3 are activated. The output shaft of the forward and reverse motors 302 drives the threaded column 303 to rotate through the flexible coupling. The lower end of the threaded column 303 passes through the movable plate 304 and is threadedly connected to the threaded hole inside the movable plate 304. The rotation of the threaded column 303 is converted into the linear motion of the movable plate 304. When the movable plate 304 moves, the balls 307 inside the sliders 306 on both sides of its upper end roll in the grooves 308 inside the housing 301, reducing the frictional resistance of the movable plate 304. The top block 305 at the lower end of the movable plate 304 moves synchronously with the movable plate 304. The wear-resistant rubber contact pad at the end of the top block 305 away from the movable plate 304 contacts the spindle body 103, applying a reverse force to the spindle body 103 and pushing it to move to the normal position. During this process, the detection mechanism 2 continuously monitors the positional changes of the spindle body 103 and feeds the data back to the external controller. When the external controller detects that the spindle body 103 has returned to the normal displacement range, it controls the forward and reverse motors 302 to run in the opposite direction, driving the movable plate 304 to move in the opposite direction through the threaded column 303, causing the top block 305 to separate from the spindle body 103 and return to the initial position. Then the forward and reverse motors 302 stop running, completing the adjustment and reset process of the spindle body 103.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A GE wind turbine main shaft displacement adjustment device, comprising a wind turbine body (1), the wind turbine body (1) comprising a tower (101), a nacelle cover (102), a main shaft body (103), and a wind turbine (104), wherein the upper end of the tower (101) is provided with the nacelle cover (102), the front end of the nacelle cover (102) is rotatably connected to the main shaft body (103), and the front end of the main shaft body (103) is provided with the wind turbine (104), characterized in that: A detection mechanism (2) is fixedly connected to the front side of the engine cover (102). The detection mechanism (2) is annularly sleeved on the surface of the main spindle body (103) and has multiple sets of displacement sensors inside. An adjustment mechanism (3) is fixedly connected to the front side of the engine cover (102). Multiple adjustment mechanisms (3) are provided and are evenly arranged in a ring on the front side of the engine cover (102) with the main spindle body (103) as the central axis. The adjustment mechanism (3) includes a housing (301). The housing (301) is fixedly connected to the front side of the engine cover (102). A forward and reverse motor (302) is fixedly connected inside the housing (301). A threaded column (303) is provided at the lower end of the output shaft of the forward and reverse motor (302). The threaded column (303) extends through the lower end to the movable plate (304), and the threaded column (303) is threadedly connected to the threaded hole inside the movable plate (304). The lower end of the movable plate (304) is fixedly connected to a top block (305). The multiple sets of displacement sensors and the forward and reverse motors (302) inside the detection mechanism (2) are electrically connected to an external controller that has a preset normal displacement threshold for the main shaft body (103). The multiple sets of displacement sensors inside the detection mechanism (2) are used to detect the displacement of the main shaft body (103) in all directions. The external controller can control the multiple sets of forward and reverse motors (302) to operate independently based on the displacement, so as to realize the adjustment of the main shaft body (103) in the fan body (1).

2. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The upper left and right sides of the movable plate (304) are fixedly connected to sliders (306). The sliders (306) are connected to a ball bearing (307) on the side away from the movable plate (304). The outer shell (301) has a groove (308) inside, and the ball bearing (307) is connected to the groove (308) inside.

3. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The forward and reverse motors (302) are connected to the threaded column (303) by a coupling, and the coupling is a flexible coupling.

4. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The top block (305) is provided with a contact pad at the end away from the movable plate (304), and the contact pad is made of wear-resistant rubber material.

5. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The outer shell (301) is made of stainless steel and has an anti-corrosion coating on its surface. A heat dissipation hole is provided on one side of the outer shell (301) and a dustproof mesh is installed inside the heat dissipation hole.

6. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The threaded post (303) is made of high-strength alloy steel and has an anti-rust coating on its surface.

7. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The movable plate (304) is made of lightweight alloy material, and the edges of the movable plate (304) are rounded.

8. The electric field GE fan main shaft displacement adjustment device according to claim 1, characterized in that: The displacement sensor inside the detection mechanism (2) is a laser displacement sensor.

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