CN219733565U - A pitch communication signal monitoring device - Google Patents

Abstract

The utility model discloses a pitch communication signal monitoring device, which includes a nacelle and a gear box at its inner bottom; by arranging an oil guide port, an oil guide bucket, an oil level sensor, an oil collection bottle, an annular slide rail, an electric slider, The 360° surveillance camera is used in conjunction with the lighting, the oil collection bottle is used to collect the leaked oil, and the oil level sensor is used to monitor the oil level. At the same time, the 360° surveillance camera is used to take pictures of the gear box, and the approximate picture is taken. Oil leakage location, online monitoring of the operating wind turbine gearbox can predict and evaluate the operating status of the gearbox, and transform from post-event maintenance or regular maintenance to condition-based maintenance, so that faults in the pitch communication signal can be discovered in time. Oil leakage in the gearbox of the wind turbine can be detected in time in the early stages to avoid oil leakage in the slip ring caused by serious oil leakage in the gearbox. The oil will adhere to the slip ring and form an oil film between the pins, which will act as an insulator and cause pitch communication signal failure. problem occurs.

Description

A pitch communication signal monitoring device

Technical field

The utility model relates to the technical field of wind turbine pitch monitoring, and in particular to a pitch communication signal monitoring device.

Background technique

With the development of wind power technology, offshore wind turbines have grown explosively. Compared with onshore units, the maintenance cost of offshore wind turbines is very high, and the cost of going offshore is expensive. The pitch system is installed in the top hub of the wind turbine. It is responsible for the safe operation of the entire wind turbine. It is one of the core parts of the control system of large wind turbines and an important component of the wind turbine. Therefore, it is necessary to perform regular maintenance and troubleshooting work on its internal pitch PLC and driver. In the existing technology, each driver is connected to a data control card with a wireless communication module through a CAN or 485 data bus. The data control card communicates with a wireless communication router installed in the wind turbine nacelle through its wireless communication module. , the Ethernet port of the wireless communication router is connected to the wind turbine network through a network cable and communicates with the wind farm's data collection and monitoring control system.

Most pitch communication failures of wind turbines are caused by poor contact of the slip ring. The wind turbine pitch slip ring is an important component that provides power for the hub pitch system and realizes communication transmission. During the operation of the gearbox, Serious oil leakage from the gearbox causes oil to enter the slip ring. The oil adheres to the slip ring and the pins to form an oil film, which acts as an insulator. This causes the pitch communication signal to be intermittent and the main control cabinet control unit to be unable to receive and provide feedback. To deal with the overspeed signal, the pitch system cannot stop until it overshoots. Currently, we mainly rely on experienced employees to perform regular on-site inspections. They regularly stop the fans, check the status of the gearbox, or carry out cleaning work to ensure the normal operation of the slip ring. To work, using this monitoring method requires staff to stop the wind turbine, and then rely on inspectors to enter the wind turbine cabin to visually determine whether the gearbox is leaking oil and where the oil is leaking. However, manual inspection is easy to miss. The best time for oil leakage is discovered, and the best time for maintenance is missed. The leaked gearbox oil enters the slip ring, causing oil to enter the slip ring. The oil adheres to the slip ring and the pin to form an oil film, which acts as an insulator. This may cause pitch communication signal failure and cause safety accidents.

For this reason, we propose a pitch communication signal monitoring device.

Utility model content

In order to make up for the above shortcomings, the present invention provides a pitch communication signal monitoring device that overcomes the above technical problems or at least partially solves the above problems.

In order to solve the above technical problems, the present utility model provides the following technical solution: a pitch communication signal monitoring device, including a nacelle and a gear box at its inner bottom. The inner bottom of the nacelle is provided with an oil guide port below the gear box, so The bottom of the oil guide port is connected to an oil guide bucket, and an oil collection bottle is threaded on the outside of the bottom end of the oil guide bucket. An oil level sensor is provided on one side of the top of the oil collection bottle. The oil level sensor is The bottom end extends to the bottom of the oil collection bottle. An annular slide rail is provided at the top of the cabin. An electric slider is provided for annular sliding motion on the annular slide rail. A camera holder is connected to the bottom of the electric slider. The camera A 360° surveillance camera is connected to the bottom of the seat, and lighting lights are provided on both sides of the bottom of the electric slider.

As a preferred technical solution of the pitch communication signal monitoring device of the present invention, the bottom of the nacelle is connected to a tower frame, the oil guide bucket and the oil collection bottle are located inside the tower frame, and the gear box passes through The bracket is connected to the bottom of the cabin.

As a preferred technical solution of a pitch communication signal monitoring device of the present invention, a bottle mouth extends from the top of the oil collection bottle, and internal threads are provided on the inner wall of the bottle mouth. The outer side of the bottom end of the oil guide bucket An external thread is provided, and the internal thread and the external thread are threadedly connected.

As a preferred technical solution of the pitch communication signal monitoring device of the present invention, the top of the annular slide rail is connected to a top frame, and the top four corners of the top frame are connected to mounting plates, and each of the mounting plates passes through The bolts are connected to the top of the cabin, and the top frame is provided with a plurality of heat dissipation vents.

As a preferred technical solution for a pitch communication signal monitoring device of the present invention, an oil outlet pipe is connected to the side of the oil collection bottle near the bottom, an oil outlet valve is connected to the oil outlet pipe, and the bottom of the oil collection bottle is connected to There is a handle.

As a preferred technical solution of the pitch communication signal monitoring device of the present invention, two connecting plates are connected to both sides of the bottom of the electric slider, and one side of the two connecting plates is connected to a support frame, so The lighting lamp is installed on the support frame.

As a preferred technical solution of a pitch communication signal monitoring device of the present invention, a battery is provided on one side of the cabin, and the battery is electrically connected to an oil level sensor, a 360° monitoring camera and a lighting lamp.

Compared with the existing technology, the beneficial effects achieved by this utility model are:

1. By setting up the oil guide port, oil guide bucket, oil level sensor, oil collection bottle, annular slide rail, electric slider, 360° surveillance camera and lighting, use the oil collection bottle to collect the leaked oil. , and use the oil level sensor to monitor the oil level. At the same time, a 360° surveillance camera is used to photograph the gearbox to capture the approximate oil leakage location. The operating fan gearbox can be monitored online to determine the operating status of the gearbox. Predictive assessment is made, and post-event maintenance or periodic maintenance is transformed into status-based maintenance, so that faults in the pitch communication signal can be discovered in time, and then maintenance can be carried out in a timely manner. Oil leakage in the gearbox of the wind turbine can be discovered in time, reducing the risk of oil leakage. The amount of oil leakage from the fan gearbox can prevent oil from entering the slip ring when there is serious oil leakage from the gearbox. The oil will adhere to the slip ring and form an oil film between the pins, which acts as an insulator and leads to pitch communication signal failure. Monitoring process There is no need to shut down the wind turbine, it is easy to operate and can maintain the continuous operation of the wind turbine, thereby greatly reducing the loss of service life caused by the shutdown of the wind turbine;

2. The leaked oil passes through the oil guide port at the bottom of the engine room and flows along the oil guide bucket into the oil collecting bottle for collection to prevent the leaked oil from flowing into other places in the engine room, polluting the engine room environment, damaging the engine room components, and the oil collecting bottle and the oil guide The removable connection between the buckets makes it easier to clean the oil accumulation in the oil collection bottle, thereby reducing the workload and the loss of cleaning supplies, and avoiding long-term wind turbine outage caused by oil pollution cleaning.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

Figure 2 is a schematic diagram 2 of the three-dimensional structure of the utility model;

Figure 3 is a schematic diagram of the front cross-sectional structure of the utility model;

Figure 4 is a schematic three-dimensional structural diagram of the annular slide rail of the present utility model.

Among them: 1. Engine room; 2. Gear box; 3. Tower frame; 4. Bracket; 5. Oil guide port; 6. Oil guide hopper; 7. Oil collection bottle; 8. Oil level sensor; 9. Oil outlet pipe; 10. Oil outlet valve; 11. Handle; 12. Bottle mouth; 13. Top frame; 14. Ring slide rail; 15. Electric slider; 16. Camera holder; 17. 360° surveillance camera; 18. Connecting plate; 19 , support frame; 20. lighting lamp; 21. mounting plate; 22. bolt; 23. heat dissipation port.

Detailed ways

In order to make it easy to understand the technical means, creative features, objectives and effects of the present utility model, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present utility model and are not all of them. . Based on the examples in the implementation mode, other embodiments obtained by those skilled in the art without any creative work shall all fall within the protection scope of the present utility model. The experimental methods in the following examples, unless otherwise specified, are all conventional methods. The materials, reagents, etc. used in the following examples, unless otherwise specified, can all be obtained from commercial sources.

Example:

Please refer to Figures 1 to 4. A pitch communication signal monitoring device includes a nacelle 1 and a gearbox 2 at its inner bottom. An oil guide port 5 is provided at the bottom of the nacelle 1 below the gearbox 2. The oil guide port 5 There is an oil guide hopper 6 connected to the bottom of the oil guide hopper 6. An oil collection bottle 7 is threaded on the outside of the bottom end of the oil guide hopper 6. An oil level sensor 8 is provided on the top side of the oil collection bottle 7. The bottom end of the oil level sensor 8 extends to An annular slide rail 14 is provided at the inner bottom of the oil collection bottle 7 and at the top of the cabin 1. An electric slider 15 is provided for annular sliding motion on the annular slide rail 14. The bottom of the electric slider 15 is connected to a camera holder 16, and the bottom of the camera holder 16 is connected to There is a 360° surveillance camera 17, and lights 20 are provided on both sides of the bottom of the electric slider 15. During the operation of the fan, the electric slider 15 on the annular slide rail 14 drives the 360° surveillance camera 17 and two lights. The lamp 20 can move along the circular road, and the 360° surveillance camera 17 takes pictures of the gearbox 2 in operation during its movement. The lighting lamp 20 is used to illuminate the shooting area of the 360° surveillance camera 17, so that the gearbox 2 The photographed area is made clearer, and the approximate oil leakage position of gearbox 2 is photographed, which facilitates subsequent staff to detect its location and perform maintenance, improves the overall maintenance efficiency of the wind turbine pitch system, reduces maintenance costs, and improves the reliability of wind turbine operation. sex.

In other embodiments, the bottom of the nacelle 1 is connected to the tower frame 3. The oil guide bucket 6 and the oil collection bottle 7 are located inside the tower frame 3. The gearbox 2 is connected to the bottom of the nacelle 1 through the bracket 4. The gearbox 2 is installed in the nacelle 1 and accelerates the rotation of the rotor shaft to drive the generator to generate electricity. The energy is transferred from the main shaft of the wind turbine to the gearbox 2 through the wind turbine blades, and finally to the generator through the flexible coupling.

In other embodiments, a bottle mouth 12 extends from the top of the oil collecting bottle 7, and internal threads are provided on the inner wall of the bottle mouth 12. External threads are provided outside the bottom end of the oil guide bucket 6, and there are threads between the internal threads and the external threads. The connection uses the cooperation between the internal thread and the external thread so that the oil collection bottle 7 can be disassembled from the oil guide bucket 6 to facilitate subsequent cleaning.

In other embodiments, the top of the annular slide rail 14 is connected to the top frame 13 , and the top four corners of the top frame 13 are connected to mounting plates 21 . Each mounting plate 21 is connected to the top of the cabin 1 through bolts 22 , and the top frame 13 A plurality of heat dissipation vents 23 are provided on the top, and the top frame 13 and the mounting plate 21 are used to install and fix the annular slide rail 14 so that the 360° surveillance camera 17 on the annular slide rail 14 can move and shoot along the circular road.

In other embodiments, an oil outlet pipe 9 is connected to one side of the oil collection bottle 7 near the bottom. An oil outlet valve 10 is connected to the oil outlet pipe 9. A handle 11 is connected to the bottom of the oil collection bottle 7. Open the oil outlet valve 10 and use the oil outlet pipe. 9. The oil collected in the oil collection bottle 7 can be drained.

In other embodiments, two connecting plates 18 are connected to both sides of the bottom of the electric slider 15. One side of the two connecting plates 18 is connected to a supporting frame 19. The lighting lamp 20 is installed on the supporting frame 19. The connecting plate 18 and the support frame 19 are provided to install and connect the lighting lamp 20, and the lighting lamp 20 is used to illuminate the photographing area of the 360° surveillance camera 17, so that the photographed area of the gear box 2 can be seen more clearly.

In other embodiments, a battery is provided on one side of the cabin 1 , and the battery is electrically connected to the oil level sensor 8 , the 360° surveillance camera 17 and the spotlight 20 . A wireless communication router and an oil level sensor are provided in the cabin 1 8 and the 360° surveillance camera 17 are connected to the data set control card with the wireless communication module through the CAN or 485 data bus. The data set control card communicates with the wireless communication router installed in the wind turbine nacelle 1 through its wireless communication module. , the Ethernet port of the wireless communication router is connected to the wind turbine network through a network cable and communicates with the data collection and monitoring control system of the wind farm. Using wireless communication, it can realize remote terminal interface display and control the parameters of gearbox 2. Real-time monitoring transmits the gearbox 2 monitoring signal to the operation and maintenance personnel's monitoring equipment or the wind farm central control room in real time, so that the operation and maintenance personnel can monitor the operating status of the gearbox 2.

When the utility model is used, during the operation of the fan, the electric slider 15 on the annular slide rail 14 drives the 360° surveillance camera 17 and the two lighting lights 20 to move along the annular road, and the 360° surveillance camera 17 moves During the process, the gearbox 2 in operation is photographed, and the lighting lamp 20 is used to illuminate the shooting area of the 360° surveillance camera 17, so that the photographed area of the gearbox 2 is clearer, and the general oil leakage of the gearbox 2 is photographed. position to facilitate subsequent staff to detect its position and perform maintenance. When the gearbox 2 leaks oil, the oil slides into the oil guide hopper 6 along the oil guide port 5 and enters the inside of the oil collection bottle 7 for collection, and uses the oil The oil level sensor 8 monitors the oil level and issues an alarm. The oil level sensor 8 and the 360° monitoring camera 17 are connected to the data control card with a wireless communication module through the CAN or 485 data bus. The data control card uses its wireless The communication module communicates with the wireless communication router installed in the wind turbine nacelle 1. The Ethernet port of the wireless communication router is connected to the wind turbine network through a network cable and communicates with the data collection and monitoring control system of the wind farm. Wireless communication is used. method, which can realize remote terminal interface display, real-time monitoring of the parameters of the gearbox 2, and transmit the monitoring signal of the gearbox 2 to the operation and maintenance personnel's monitoring equipment or the wind farm central control room in real time, so as to facilitate the operation and maintenance personnel to monitor the operating status of the gearbox 2 Through monitoring, the operating status of the gearbox 2 can be predicted and evaluated, and the maintenance or periodic maintenance can be transformed into a status-based maintenance, so that the fault of the pitch communication signal can be discovered in time, and then the maintenance can be carried out in a timely manner. Oil leakage in gearbox 2 can be detected in time at the early stage, which reduces the amount of oil leakage in fan gearbox 2 and prevents oil from entering the slip ring when the gearbox 2 leaks seriously. The oil adheres to the slip ring and forms an oil film between the pins, causing problems. The insulation effect causes the problem of pitch communication signal failure. There is no need to shut down the wind turbine during the monitoring process. It is easy to operate and can maintain the continuous operation of the wind turbine, thereby greatly reducing the loss of service life caused by the shutdown of the wind turbine.

It should be noted that the gear box 2, the oil level sensor 8, the annular slide rail 14, the electric slider 15, the 360° surveillance camera 17 and the lighting lamp 20 are devices or equipment that exist in the existing technology, or are available in the existing technology. The implemented device or equipment, its power supply, specific composition and principles are clear to those skilled in the art and are common knowledge in the art, so they will not be described in detail.

In the present invention, unless otherwise expressly stipulated and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features being in direct contact with each other. Features are not in direct contact but through other features between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

The basic principles, main features and advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the present utility model, Under the premise of keeping the spirit and scope of the present utility model, there will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the present utility model is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a become oar communication signal monitoring devices, includes cabin (1) and gear box (2) of interior bottom thereof, its characterized in that: an oil guide port (5) is formed in the lower portion of the gear box (2) at the inner bottom of the engine room (1), an oil guide bucket (6) is communicated with the bottom of the oil guide port (5), an oil collecting bottle (7) is sleeved on the outer side of the bottom end of the oil guide bucket (6), an oil level sensor (8) is arranged on one side of the top of the oil collecting bottle (7), the bottom end of the oil level sensor (8) extends to the inner bottom of the oil collecting bottle (7), an annular sliding rail (14) is arranged at the inner top of the engine room (1), an electric sliding block (15) is arranged on the annular sliding rail (14) in a sliding mode, a camera head seat (16) is connected to the bottom of the electric sliding block (15), a 360-degree monitoring camera head (17) is connected to the bottom of the camera head seat (16), and lighting lamps (20) are arranged on two sides of the bottom of the electric sliding block (15). The top of the oil collecting bottle (7) is extended with a bottle mouth (12), an inner thread is arranged on the inner wall of the bottle mouth (12), an outer thread is arranged on the outer side of the bottom end of the oil guide bucket (6), and the inner thread is in threaded connection with the outer thread.

2. The pitch communication signal monitoring device according to claim 1, wherein: the bottom of cabin (1) is connected with tower section of thick bamboo frame (3), lead oil fill (6) and collection oil bottle (7) all are located the inside of tower section of thick bamboo frame (3), gear box (2) are connected in the interior bottom of cabin (1) through support (4).

3. A pitch communication signal monitoring device according to claim 1 or 2, characterized in that: the top of annular slide rail (14) is connected with roof-rack (13), the top four corners of roof-rack (13) all is connected with mounting panel (21), every mounting panel (21) all is connected in cabin (1) interior top through bolt (22), a plurality of thermovent (23) have been seted up on roof-rack (13).

4. A pitch communication signal monitoring device according to claim 1 or 2, characterized in that: the oil collecting bottle is characterized in that an oil outlet pipe (9) is communicated with one side, close to the bottom, of the oil collecting bottle (7), an oil outlet valve (10) is connected to the oil outlet pipe (9), and a handle (11) is connected to the bottom of the oil collecting bottle (7).

5. A pitch communication signal monitoring device according to claim 3, wherein: the oil collecting bottle is characterized in that an oil outlet pipe (9) is communicated with one side, close to the bottom, of the oil collecting bottle (7), an oil outlet valve (10) is connected to the oil outlet pipe (9), and a handle (11) is connected to the bottom of the oil collecting bottle (7).

6. A pitch communication signal monitoring device according to claim 1 or 2 or 5, wherein: two connecting plates (18) are connected to two sides of the bottom of the electric sliding block (15), one side of each connecting plate (18) is connected with a supporting frame (19), and the lighting lamp (20) is installed on the supporting frame (19).

7. A pitch communication signal monitoring device according to claim 3, wherein: two connecting plates (18) are connected to two sides of the bottom of the electric sliding block (15), one side of each connecting plate (18) is connected with a supporting frame (19), and the lighting lamp (20) is installed on the supporting frame (19).

8. The pitch communication signal monitoring device according to claim 4, wherein: two connecting plates (18) are connected to two sides of the bottom of the electric sliding block (15), one side of each connecting plate (18) is connected with a supporting frame (19), and the lighting lamp (20) is installed on the supporting frame (19).

9. A pitch communication signal monitoring device according to claim 1 or 2 or 5 or 7 or 8, wherein: one side is provided with the battery in cabin (1), and electric connection between battery and oil level sensor (8), 360 surveillance camera head (17) and the lighting lamp (20).

10. A pitch communication signal monitoring device according to claim 3, wherein: one side is provided with the battery in cabin (1), and electric connection between battery and oil level sensor (8), 360 surveillance camera head (17) and the lighting lamp (20).