Wind driven generator main shaft with vibration monitoring mechanism

Abstract

The utility model relates to the field of wind driven generator spindles, in particular to a wind driven generator spindle with a vibration monitoring mechanism, which comprises a wind driven generator spindle body. The monitoring assembly is installed on the outer side of the wind driven generator main shaft body and used for vibration monitoring. According to the wind driven generator main shaft with the vibration monitoring mechanism, through the arrangement of the wind driven generator main shaft body and the monitoring assembly, the wind driven generator main shaft body can be monitored in real time in the rotating process, and compared with traditional manual regular detection, the wind driven generator main shaft is more convenient; the main shaft body of the wind driven generator is in contact with the rolling wheel in the movable seat in the rotating process, and when the main shaft body of the wind driven generator vibrates, the rolling wheel in the movable seat is extruded, so that the vibration sensor behind the movable seat senses the vibration pressure for monitoring; and meanwhile, the rear telescopic rod is telescopically buffered in the first lantern ring and the second lantern ring through the spring, so that vibration detection of the vibration sensor is facilitated, and damage caused by direct contact of the vibration sensor is also avoided.

Description

Technical Field

[0001] The utility model relates to the field of wind generator main shafts, in particular to a wind generator main shaft with a vibration monitoring mechanism. Background Art

[0002] The main shaft of a wind turbine is a key component in a wind turbine generator system and plays a vital role. Its main function is to convert the kinetic energy generated by the wind into mechanical energy, which further drives the generator to generate electricity. When the wind rotor rotates, the main shaft transmits this rotational force to the generator, generating electricity for use in the power grid.

[0003] During the operation of existing wind turbines, the wind turbine main shaft will be driven to rotate. Long-term rotation will cause a certain amount of wear on the main shaft, which will cause the main shaft to vibrate during rotation. Excessive vibration may affect the normal operation of the entire wind turbine equipment. The existing main shaft vibration monitoring mostly adopts manual regular use of vibration sensors to detect the main shaft. Such manual detection is not only time-consuming and labor-intensive, but also has poor monitoring effect.

[0004] Therefore, it is necessary to invent a wind turbine main shaft with a vibration monitoring mechanism to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a wind turbine main shaft with a vibration monitoring mechanism, wherein the wind turbine main shaft body contacts the roller in the movable seat during rotation, and when the wind turbine main shaft body vibrates, it squeezes the roller in the movable seat, so that the vibration sensor behind the movable seat senses the pressure of the vibration for monitoring, and at the same time, the rear telescopic rod is retracted and buffered in the first ring and the second ring by a spring, which is convenient for the vibration sensor to perform vibration detection and avoids damage caused by direct contact of the vibration sensor, so as to solve the problem proposed in the above background technology that during the operation of the existing wind turbine, the wind power main shaft will be driven to rotate, and long-term rotation will cause certain wear of the main shaft, thereby causing the main shaft to vibrate during rotation, and excessive vibration may affect the normal operation of the entire wind power generation equipment, and the existing main shaft vibration monitoring mostly adopts manual and regular use of vibration sensors to detect the main shaft, and such manual detection is not only time-consuming and labor-intensive, but also has poor monitoring effect.

[0006] In order to achieve the above-mentioned object, the present utility model provides the following technical solutions: a wind turbine main shaft with a vibration monitoring mechanism, comprising a wind turbine main shaft body;

[0007] A monitoring component is installed on the outside of the main shaft of the wind turbine generator for vibration monitoring. The monitoring component includes a first ring and a second ring. The first ring and the second ring are respectively sleeved on the outside of the main shaft of the wind turbine generator. The two sides of the second ring are movably connected with threaded sleeves, and the interior of the threaded sleeves is movably connected with a screw. The interior of the first ring and the second ring is provided with a movable seat, and the interior of the movable seat is movably connected with a roller. A vibration sensor is provided at the rear of the movable seat. One end of the main shaft of the wind turbine generator is fixedly connected with a mounting plate;

[0008] The adjustment component is installed below the monitoring component and is used for installing the monitoring component.

[0009] Preferably, a temperature sensor is provided on one side of the first collar, and the first collar is threadedly connected to the second collar.

[0010] Preferably, the inner surfaces of the first and second rings are both provided with limiting grooves, and both sides of the movable seat are fixedly connected to limiting blocks, and the limiting grooves are used in conjunction with the limiting blocks.

[0011] Preferably, telescopic rods are fixedly connected to both sides of the rear of the movable seat, the telescopic rods are slidably connected to the first ring and the second ring, and a spring is provided on the outside of the telescopic rods.

[0012] Preferably, the adjustment assembly includes a connecting seat, the external movably connected to the mounting seat, the front two side surfaces of the mounting seat are provided with sliding grooves, the front two side surfaces of the connecting seat are provided with threaded grooves, and the internal threads of the threaded grooves are connected to bolts.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] By setting up the wind turbine main shaft body and the monitoring component, the wind turbine main shaft body can be monitored in real time during the rotation process, which is more convenient than traditional manual periodic detection. The wind turbine main shaft body contacts the roller in the movable seat during the rotation process. When the wind turbine main shaft body vibrates, it squeezes the roller in the movable seat, so that the vibration sensor behind the movable seat senses the pressure of the vibration for monitoring. At the same time, the telescopic rod at the rear is retracted and buffered in the first and second rings by the spring, which facilitates the vibration sensor to perform vibration detection and avoids damage caused by direct contact with the vibration sensor.

[0015] The arrangement of the monitoring component and the adjustment component facilitates the installation and adjustment of the monitoring component. The connecting seat under the second ring is telescopically moved in the mounting seat. When the connecting seat moves in the mounting seat, it drives the bolt to move in the slide groove. When it moves to the appropriate height, the bolt is tightened to fix the connecting seat. At the same time, the first ring and the second ring are installed and locked by the threaded sleeve and the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the monitoring component structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the second ring structure of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of a vibration sensor of the present utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the adjustment component of the present utility model.

[0022] Description of reference numerals:

[0023] 1. Wind turbine main shaft; 2. Mounting plate; 3. Monitoring assembly; 301. First ring; 302. Second ring; 303. Temperature sensor; 304. Threaded sleeve; 305. Screw; 306. Limiting groove; 307. Movable seat; 308. Roller; 309. Limiting block; 310. Vibration sensor; 311. Telescopic rod; 312. Spring; 4. Adjustment assembly; 401. Connecting seat; 402. Mounting seat; 403. Slide groove; 404. Threaded groove; 405. Bolt. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-5 The wind turbine main shaft with a vibration monitoring mechanism shown includes a wind turbine main shaft body 1;

[0026] The monitoring component 3 is installed on the outside of the main shaft body 1 of the wind turbine for vibration monitoring. The monitoring component 3 includes a first ring 301 and a second ring 302. The first ring 301 and the second ring 302 are respectively sleeved on the outside of the main shaft body 1 of the wind turbine. The two sides of the second ring 302 are movably connected with threaded sleeves 304. The interior of the threaded sleeve 304 is movably connected with a screw 305. The interior of the first ring 301 and the second ring 302 are both provided with a movable seat 307. The interior of the movable seat 307 is movably connected with a roller 308. A vibration sensor 310 is provided behind the movable seat 307. One end of the main shaft body 1 of the wind turbine is fixedly connected to the mounting plate 2.

[0027] The adjusting component 4 is installed below the monitoring component 3 and is used to install the monitoring component 3. The main shaft body 1 of the wind turbine contacts the roller 308 in the movable seat 307 during rotation. When the main shaft body 1 of the wind turbine vibrates, the roller 308 in the movable seat 307 is squeezed, so that the vibration sensor 310 behind the movable seat 307 senses the pressure of the vibration for monitoring. At the same time, the telescopic rod 311 at the rear is telescopically buffered in the first ring 301 and the second ring 302 by the spring 312, which facilitates the vibration detection of the vibration sensor 310 and avoids damage caused by direct contact of the vibration sensor 310.

[0028] like Figure 2 As shown, a temperature sensor 303 is provided on one side of the first ring 301. The first ring 301 is threadedly connected to the second ring 302. The temperature sensor 303 can monitor the temperature change of the wind turbine main shaft 1 in real time to judge the operating status and health of the equipment.

[0029] like Figure 3 As shown, the inner surfaces of the first ring 301 and the second ring 302 are both provided with limiting grooves 306, and the limiting blocks 309 are fixedly connected to the two sides of the movable seat 307. The limiting grooves 306 and the limiting blocks 309 are used in conjunction with each other. When the movable seat 307 is extended and retracted in the first ring 301 and the second ring 302, the limiting blocks 309 on both sides slide in the limiting grooves 306 in the first ring 301 and the second ring 302, thereby improving the stability of the extension and retraction.

[0030] like Figure 4 As shown, telescopic rods 311 are fixedly connected to both sides of the rear of the movable seat 307. The telescopic rods 311 are slidably connected to the first ring 301 and the second ring 302. A spring 312 is provided on the outside of the telescopic rod 311. When the movable seat 307 is squeezed, the telescopic rod 311 slides in the first ring 301 and the second ring 302, and the spring 312 is provided on the outside of the telescopic rod 311, thereby playing a buffering role.

[0031] like Figure 1 、 Figure 2and Figure 5 As shown, the adjustment component 4 includes a connecting seat 401, and the external movably connected to the mounting seat 402 of the connecting seat 401, the front two side surfaces of the mounting seat 402 are provided with a slide groove 403, and the front two side surfaces of the connecting seat 401 are provided with a threaded groove 404. The internal thread of the threaded groove 404 is connected with a bolt 405, and the connecting seat 401 under the second ring 302 is telescopically moved in the mounting seat 402. When the connecting seat 401 moves in the mounting seat 402, it drives the bolt 405 to move in the slide groove 403. When it moves to a suitable height, the bolt 405 is tightened to fix the connecting seat 401. At the same time, the first ring 301 and the second ring 302 are installed and locked by the threaded sleeve 304 and the screw 305.

[0032] The working principle of the utility model is as follows: first, the first ring 301 and the second ring 302 are respectively put on the outside of the wind turbine main shaft body 1, and then the threaded sleeves 304 and screws 305 on both sides of the second ring 302 are pulled so that the screws 305 are put on both sides of the first ring 301, and then the screws 305 are tightened to fix the two. Next, according to the height of the installation position of the mounting seat 402, it is pulled out from the outside of the connecting seat 401. When it is pulled out to a suitable height, the bolts 405 in the slide groove 403 outside the mounting seat 402 are tightened to fix the connecting seat 401 in the mounting seat 402. After that, the power is turned on and the wind turbine main shaft body 1 starts to rotate. During the rotation of the wind turbine main shaft body 1, it contacts the rollers in the multiple movable seats 307. Wheel 308, when the main shaft body 1 of the wind turbine vibrates, it will squeeze the roller 308 in the movable seat 307, so that the vibration sensor 310 behind the movable seat 307 senses the pressure of the vibration for monitoring. At the same time, the telescopic rod 311 at the rear is telescopically buffered in the first ring 301 and the second ring 302 through the spring 312, which is convenient for the vibration sensor 310 to perform vibration detection and avoids damage caused by direct contact of the vibration sensor 310. At the same time, the temperature sensor 303 is installed on one side of the first ring 301, which can monitor the temperature changes of the main shaft body 1 of the wind turbine in real time to judge the operating status and health status of the equipment. In this way, the use process of the wind turbine main shaft with a vibration monitoring mechanism is completed.

[0033] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A wind turbine main shaft with a vibration monitoring mechanism, characterized in that: It includes a wind turbine main shaft body (1); A monitoring component (3) is installed on the outside of the main shaft body (1) of the wind turbine generator and is used for vibration monitoring. The monitoring component (3) includes a first ring (301) and a second ring (302), the first ring (301) and the second ring (302) are respectively sleeved on the outside of the main shaft body (1) of the wind turbine generator, the two sides of the second ring (302) are movably connected to threaded sleeves (304), the interior of the threaded sleeve (304) is movably connected to a screw (305), the interior of the first ring (301) and the second ring (302) are both provided with a movable seat (307), the interior of the movable seat (307) is movably connected to a roller (308), a vibration sensor (310) is provided at the rear of the movable seat (307), and one end of the main shaft body (1) of the wind turbine generator is fixedly connected to a mounting plate (2); The regulating component (4) is installed below the monitoring component (3) and is used for installing the monitoring component (3).

2. The wind turbine main shaft with a vibration monitoring mechanism according to claim 1, characterized in that: A temperature sensor (303) is provided on one side of the first collar (301), and the first collar (301) is threadedly connected to the second collar (302).

3. The wind turbine main shaft with a vibration monitoring mechanism according to claim 1, characterized in that: The inner surfaces of the first ring (301) and the second ring (302) are both provided with limiting grooves (306), and both sides of the movable seat (307) are fixedly connected to limiting blocks (309), and the limiting grooves (306) are used in conjunction with the limiting blocks (309).

4. The wind turbine main shaft with a vibration monitoring mechanism according to claim 1, characterized in that: Telescopic rods (311) are fixedly connected to both sides of the rear of the movable seat (307). The telescopic rods (311) are slidably connected to the first ring (301) and the second ring (302). A spring (312) is provided on the outside of the telescopic rods (311).

5. The wind turbine main shaft with a vibration monitoring mechanism according to claim 1, characterized in that: The adjustment assembly (4) comprises a connecting seat (401), the connecting seat (401) is externally movably connected to a mounting seat (402), sliding grooves (403) are provided on both sides of the front surface of the mounting seat (402), and threaded grooves (404) are provided on both sides of the front surface of the connecting seat (401), and bolts (405) are connected to the internal threads of the threaded grooves (404).

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