Vibration monitoring equipment for gearbox of wind driven generator

Abstract

The utility model relates to the technical field of gearbox monitoring, and discloses a vibration monitoring device of a wind driven generator gearbox, two end faces of the lower surface of a monitoring frame are slidably provided with a moving frame, the front surface and the rear surface of the moving frame are both provided with a sliding plate, and the rear surface of the sliding plate is provided with a sliding rail in front of the monitoring frame. Fixing rods are arranged on the front surface and the rear surface of the moving frame, and limiting rods are arranged in the fixing rods in a penetrating mode; the telescopic end of the first electric telescopic rod is connected with a lifting plate, and a vibration sensor is installed on the lower surface of the lifting plate. Sliding rails slide in guide grooves and are fixed through screws, so that the movable frame can meet the requirement for installation of different wind driven generator gearbox shells, and meanwhile, limiting rods can be embedded into limiting holes formed in the outer portions of the wind driven generator gearbox shells through work of second electric telescopic rods; therefore, the monitoring frame can be quickly positioned and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox monitoring, in particular to a vibration monitoring device for a wind turbine gearbox. Background Technique

[0002] The wind turbine gearbox is a core mechanical component in a wind power generation unit. Its main function is to transmit the power generated by the wind turbine under the action of wind through the speed-increasing effect of the gear pair to the generator and make it reach the corresponding speed. Since wind turbines are usually installed in high-altitude and remote areas and are relatively difficult to maintain, it is particularly important to monitor the vibration of the wind turbine gearbox. Through vibration monitoring, the working state of the gearbox can be understood in real time, and potential faults and problems can be discovered in time.

[0003] The Chinese patent discloses a vibration monitoring device for a wind turbine gearbox (authorization publication number CN218895941U). This patented technology can complete the vibration monitoring of the gearbox through a vibration sensor, and judge the usage state of the gearbox by receiving and comparing vibration data in the background, so as to accurately maintain and repair the damaged gearbox, reduce the workload of staff, and avoid the situation of over-maintenance of the gearbox.

[0004] However, most of the existing vibration monitoring of wind turbine gearboxes uses vibration sensors for monitoring, and the monitoring frame is installed manually. This method makes it inconvenient to install and disassemble, affecting the vibration monitoring efficiency of the gearbox. As in the above comparative document, it uses a manual rotation installation method, and in actual application, the installation and disassembly efficiency is slow, affecting the vibration monitoring work of the gearbox. Therefore, those skilled in the art provide a vibration monitoring device for a wind turbine gearbox to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vibration monitoring device for a wind turbine gearbox to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A vibration monitoring device for a wind turbine gearbox, including a monitoring frame, both end faces of the lower surface of the monitoring frame are slidably installed with moving frames, both the front surface and the rear surface of the moving frame are installed with sliding plates, a slide rail is installed in front of the monitoring frame on the rear surface of the sliding plate, both the front surface and the rear surface of the moving frame are provided with fixing rods, and a limiting rod is penetrated inside the fixing rod;

[0008] One side of the monitoring frame is equipped with a motor, and a sliding groove is formed on the lower surface of the monitoring frame. The driving end of the motor is connected with a screw rod inside the sliding groove. A moving block is slidably arranged outside the screw rod. The lower surface of the moving block is connected with a moving plate. The lower surface of the moving plate is symmetrically provided with first electric telescopic rods. The telescopic ends of the first electric telescopic rods are connected with a lifting plate. A vibration sensor is installed on the lower surface of the lifting plate.

[0009] As a further scheme of the utility model: The moving block is slidably arranged inside the sliding groove, and four first electric telescopic rods are symmetrically arranged on the lower surface of the moving plate.

[0010] As a further scheme of the utility model: A bearing is arranged inside the sliding groove, and one end of the screw rod is embedded inside the bearing and rotatably connected with the bearing.

[0011] As a further scheme of the utility model: Guide grooves are formed on both the front surface and the rear surface of the monitoring frame, and the slide rail is slidably arranged inside the guide grooves.

[0012] As a further scheme of the utility model: The moving frame is arranged in a "U" shape, and the limiting rod is slidably arranged inside the fixed rod.

[0013] As a further scheme of the utility model: A second electric telescopic rod is arranged inside the fixed rod. One end of the limiting rod is connected with a limiting disc inside the fixed rod, and the telescopic end of the second electric telescopic rod is connected to one end of the limiting disc.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A vibration monitoring device for a wind turbine gearbox can adjust the position of the moving frame by sliding the slide rail inside the guide groove and fixing it with screws, so that the moving frame can be installed on different wind turbine gearbox casings. At the same time, the work of the second electric telescopic rod inside the fixed rod will make the limiting rod penetrate through the fixed rod and embed into the limiting hole opened outside the wind turbine gearbox casing, so as to realize the rapid positioning and installation of the monitoring frame, with good stability and facilitating the subsequent vibration monitoring work of the wind turbine gearbox.

[0016] 2. A vibration monitoring device for a wind turbine gearbox can rotate the screw rod by the work of the motor and make the moving block slide inside the sliding groove, so as to automatically adjust the position of the vibration sensor to monitor the vibration of different positions of the wind turbine gearbox. At the same time, the work of the first electric telescopic rod will make the lifting plate rise and fall, so as to make the vibration sensor contact with the wind turbine gearbox to achieve the purpose of vibration monitoring. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a vibration monitoring device for a wind turbine gearbox;

[0018] Figure 2 It is a schematic structural diagram of a moving frame in a vibration monitoring device for a wind turbine gearbox;

[0019] Figure 3 It is a schematic structural diagram of a limiting rod in a vibration monitoring device for a wind turbine gearbox;

[0020] Figure 4 It is a schematic structural diagram of a screw rod in a vibration monitoring device for a wind turbine gearbox.

[0021] In the figure: 1. Monitoring frame; 2. Motor; 21. Screw rod; 22. Bearing; 23. Moving plate; 231. Moving block; 24. First electric telescopic rod; 3. Moving frame; 31. Slide plate; 311. Slide rail; 32. Fixed rod; 321. Limiting rod; 322. Limiting disc; 323. Second electric telescopic rod; 4. Lifting plate; 41. Vibration sensor. Specific implementation manners

[0022] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a vibration monitoring device for a wind turbine gearbox includes a monitoring frame 1. Both end faces of the lower surface of the monitoring frame 1 are slidably installed with a moving frame 3. Slide plates 31 are installed on both the front surface and the rear surface of the moving frame 3. A slide rail 311 is installed in front of the monitoring frame 1 on the rear surface of the slide plate 31. Fixed rods 32 are provided on both the front surface and the rear surface of the moving frame 3. A limiting rod 321 is penetrated through the inside of the fixed rod 32. This setting utilizes the sliding of the moving frame 3 on the lower surface of the monitoring frame 1, thereby the position of the moving frame 3 can be adjusted, and the stability of the installation of the monitoring frame 1 can be ensured through the limiting rod 321.

[0023] A motor 2 is installed on one side of the monitoring frame 1, and a chute is opened on the lower surface of the monitoring frame 1. The driving end of the motor 2 is connected with a screw rod 21 inside the chute. A moving block 231 is slidably arranged on the outside of the screw rod 21. The lower surface of the moving block 231 is connected with a moving plate 23. First electric telescopic rods 24 are symmetrically arranged on the lower surface of the moving plate 23. The telescopic ends of the first electric telescopic rods 24 are connected with a lifting plate 4. A vibration sensor 41 is installed on the lower surface of the lifting plate 4. This setting utilizes the operation of the motor 2 to make the screw rod 21 rotate, and makes the moving block 231 slide inside the chute, thereby the position of the vibration sensor 41 can be adjusted to perform vibration monitoring on different positions of the wind turbine gearbox.

[0024] In Figure 1 and Figure 4In the figure: The moving block 231 is slidably arranged inside the chute. Four first electric telescopic rods 24 are symmetrically arranged on the lower surface of the moving plate 23. The operation of the first electric telescopic rods 24 will cause the moving block 231 to slide inside the chute, and then the position of the vibration sensor 41 can be adjusted to monitor the vibration at different positions of the wind turbine gearbox.

[0025] In Figure 4 the figure: A bearing 22 is arranged inside the chute. One end of the screw rod 21 is embedded inside the bearing 22 and rotatably connected to the bearing 22. The operation of the motor will cause the screw rod 21 to rotate, and then the moving block 231 can be moved inside the chute.

[0026] In Figure 1 and Figure 2 the figure: Guide grooves are opened on both the front surface and the rear surface of the monitoring frame 1. The slide rail 311 is slidably arranged inside the guide groove. The sliding of the slide rail 311 inside the guide groove can adjust the position of the moving frame 3 to install the monitoring frame 1.

[0027] In Figure 2 and Figure 3 the figure: The moving frame 3 is arranged in a "U" shape. The limiting rod 321 is slidably arranged inside the fixed rod 32. A second electric telescopic rod 323 is arranged inside the fixed rod 32. One end of the limiting rod 321 is connected with a limiting disc 322 inside the fixed rod 32, and the telescopic end of the second electric telescopic rod 323 is connected to one end of the limiting disc 322. The operation of the second electric telescopic rod 323 will cause the limiting rod 321 to move inside the fixed rod 32, and then the limiting rod 321 can be inserted into the limiting hole opened outside the shell of the wind turbine gearbox, so as to realize the purpose of positioning and installing the monitoring frame 1.

[0028] The working principle of the present utility model is as follows: When the vibration monitoring device of the wind turbine gearbox of the present utility model is in use, first, the movable frame 3 slides on the lower surface of the monitoring frame 1, that is, the slide rail 311 slides inside the guiding groove and the slide plate 31 is fixed by screws, so that the movable frame 3 can be installed and fixed. After installation, the movable frame 3 can be aligned with the installation block preset on the outer shell of the wind turbine gearbox. After being inserted, by starting the second electric telescopic rod 323 inside the fixing rod 32, the limiting rod 321 will move outwards and be embedded into the quick limiting holes outside the installation block, so as to achieve the purpose of positioning and installing the monitoring frame 1, with good stability. At the same time, by starting the motor 2, the screw rod 21 will rotate, and the moving block 231 will slide inside the chute, so as to automatically adjust the position of the vibration sensor 41 to monitor the vibration of different positions of the wind turbine gearbox. At the same time, by the operation of the first electric telescopic rod 24, the lifting plate 4 will lift, so that the vibration sensor 41 can contact the wind turbine gearbox to achieve the purpose of vibration monitoring, with good practicability.

[0029] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A vibration monitoring device for a wind turbine gearbox, comprising a monitoring frame (1), characterized in that: The two end surfaces of the lower surface of the monitoring frame (1) are slidably mounted with a moving frame (3), the front surface and the rear surface of the moving frame (3) are both mounted with a slide plate (31), the rear surface of the slide plate (31) is mounted with a slide rail (311) in front of the monitoring frame (1), the front surface and the rear surface of the moving frame (3) are both provided with a fixing rod (32), and a limiting rod (321) is provided inside the fixing rod (32); A motor (2) is installed on one side of the monitoring frame (1), and a slide groove is provided on the lower surface of the monitoring frame (1); a driving end of the motor (2) is connected to a screw rod (21) inside the slide groove; a moving block (231) is slidably arranged outside the screw rod (21); a moving plate (23) is connected to the lower surface of the moving block (231); a first electric telescopic rod (24) is symmetrically arranged on the lower surface of the moving plate (23); a telescopic end of the first electric telescopic rod (24) is connected to a lifting plate (4); and a vibration sensor (41) is installed on the lower surface of the lifting plate (4).

2. A vibration monitoring device for a wind turbine gearbox according to claim 1, characterized in that: The moving block (231) is slidably arranged inside the sliding groove, and four first electric telescopic rods (24) are symmetrically arranged on the lower surface of the moving plate (23).

3. A vibration monitoring device for a wind turbine gearbox according to claim 1, characterized in that: A bearing (22) is arranged on the inner side of the slide groove, and one end of the screw rod (21) is embedded in the bearing (22) and is rotatably connected to the bearing (22).

4. A vibration monitoring device for a wind turbine gearbox according to claim 1, characterized in that: The front surface and the rear surface of the monitoring frame (1) are both provided with guide grooves, and the slide rail (311) is slidably arranged inside the guide grooves.

5. The vibration monitoring device for a wind turbine gearbox according to claim 1, characterized in that: The movable frame (3) is arranged in a "U" shape, and the limiting rod (321) is slidably arranged inside the fixed rod (32).

6. A vibration monitoring device for a wind turbine gearbox according to claim 1, characterized in that: A second electric telescopic rod (323) is arranged inside the fixed rod (32), one end of the limiting rod (321) is connected to a limiting plate (322) inside the fixed rod (32), and the telescopic end of the second electric telescopic rod (323) is connected to one end of the limiting plate (322).

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