A wind turbine gearbox vibration monitoring device

Abstract

This utility model discloses a wind turbine gearbox vibration monitoring device in the field of wind turbine monitoring. It includes a motor body, with a gearbox body fixedly mounted on the right end of the motor body. An adjustable limiting clamping mechanism and a contact monitoring mechanism are provided on the outer sides of the motor body and gearbox body. The adjustable limiting clamping mechanism includes a receiving tube, a limiting insert tube, a first adjusting screw, a second adjusting screw, a first limiting connecting rod, a second limiting connecting rod, and a connecting screw. This wind turbine gearbox vibration monitoring device establishes an installation foundation without damaging the original structure of the motor body and gearbox body through the adjustable limiting clamping mechanism. The contact monitoring mechanism then allows for adjustment of the sensor installation position and contact position, making the device suitable for installation environments of different types of wind turbines. It can also perform vibration monitoring of the motor body or gearbox body according to actual monitoring needs, improving the device's adaptability, practicality, and field application effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine monitoring, specifically a vibration monitoring device for wind turbine gearboxes. Background Technology

[0002] Wind turbine gearbox vibration refers to the mechanical vibration phenomenon generated during gearbox operation due to factors such as gear meshing, bearing rotation, changes in force on transmission components, and fluctuations in external wind load. This vibration gradually intensifies with problems such as gear wear, bearing damage, changes in lubrication conditions, or installation deviations. Abnormal vibration may lead to accelerated damage to internal parts of the gearbox, affecting the operating efficiency and service life of the wind turbine generator set. Therefore, it is necessary to continuously monitor gearbox vibration in order to detect abnormal operation and carry out maintenance in a timely manner.

[0003] Existing wind turbine gearbox vibration monitoring devices typically require sensor installation through drilling, slotting, or adding fixed mounting structures. This not only easily damages the original structure of the motor body and gearbox but may also affect the sealing performance of the gearbox. Furthermore, the installation space and structural dimensions vary between different wind turbine models, resulting in poor adaptability of existing monitoring devices and limited adjustment range for installation positions. It is difficult to adjust the sensor's contact and monitoring positions according to actual monitoring needs. When vibration monitoring is required for different parts of the motor body or gearbox, the mounting structure often needs to be readjusted or even the monitoring device reinstalled, increasing the difficulty of on-site installation and maintenance, and reducing the applicability and ease of use of the device. Therefore, this invention designs a wind turbine gearbox vibration monitoring device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a vibration monitoring device for wind turbine gearboxes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A vibration monitoring device for a wind turbine gearbox includes a motor body, a gearbox body fixedly mounted on the right end of the motor body, and an adjustable limiting clamping mechanism and a contact monitoring mechanism provided on the outer sides of the motor body and the gearbox body. The adjustable limiting clamping mechanism includes a receiving tube, a limiting insert tube, a first adjusting screw, a second adjusting screw, a first limiting connecting rod, a second limiting connecting rod, and a connecting screw, used for clamping on the outer sides of the motor body and the gearbox. The contact monitoring mechanism includes a first threaded seat, a first threaded cylinder, a first sensor, a second threaded seat, a second threaded cylinder, and a second sensor, used for mounting on the adjustable limiting clamping mechanism and adjusting the contact position between the sensor and the monitoring part.

[0006] Optionally, a receiving tube and a limiting tube are provided at the rear of the motor body. The limiting tube and the receiving tube are connected by an insertion. A first mounting tube is fixedly installed at the right end of the receiving tube. A first adjusting screw is connected to the internal thread of the first mounting tube. A second mounting tube is fixedly installed at the right end of the limiting tube. A second adjusting screw is connected to the internal thread of the second mounting tube.

[0007] Optionally, the first adjusting screw is provided with a first limiting rod at the end away from the first mounting tube, and the second adjusting screw is provided with a second limiting rod at the end away from the second mounting tube. A connecting screw is provided between the first limiting rod and the second limiting rod. The two sets of adjustable limiting clamping mechanisms are distributed on the upper and lower layers of the outer side of the motor body and the gearbox body.

[0008] Optionally, the first threaded seat is internally threaded with a first threaded cylinder, a first sensor is fixedly installed at the rear end of the first threaded cylinder, a first mounting screw is fixedly installed at both the upper and lower ends of the first threaded cylinder, a first mounting sleeve is provided on the outer side of the first mounting screw, and the first mounting sleeve is fixedly installed on the outer wall of the first mounting tube.

[0009] Optionally, the second threaded seat has a second threaded cylinder internally threaded, a second sensor is fixedly installed at the rear end of the second threaded cylinder, and a second mounting screw is fixedly installed at both the upper and lower ends of the second threaded cylinder. A second mounting sleeve is provided on the outer side of the second mounting screw, and a loading sleeve is fixedly installed at the rear end of the second mounting sleeve. The loading sleeve is fitted onto the first adjusting screw.

[0010] Optionally, the first threaded cylinder is threadedly connected to the first threaded seat, and the contact position of the first sensor is adjusted by rotating the first threaded cylinder.

[0011] Optionally, the second threaded cylinder is threadedly connected to the second threaded seat, and the contact position of the second sensor is adjusted by rotating the second threaded cylinder.

[0012] Optionally, the first mounting sleeve is fixedly installed on the outer wall of the first mounting tube, and the second mounting sleeve is installed on the first adjusting screw through a loading sleeve, so as to realize the adjustment of the installation position of the first sensor and the second sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model includes an adjustable limiting clamping mechanism. Through the coordinated arrangement of a receiving tube, a limiting insert, a first adjusting screw, a second adjusting screw, a first limiting connecting rod, a second limiting connecting rod, and a connecting screw, the adjustable limiting clamping mechanism can adjust its length and limiting position according to the installation space of different models of wind turbines. It utilizes the outer side of the motor body and the annular groove of the gearbox to establish a clamping installation method, eliminating the need to drill holes or grooves in the gearbox to complete the installation. While maintaining the integrity of the original structure, it provides a stable and reliable installation foundation for subsequent vibration monitoring, improving the adaptability and ease of use of on-site installation.

[0014] 2. In this utility model, a fitting monitoring mechanism is provided. Through the cooperative arrangement of a first threaded seat, a first threaded cylinder, a first sensor, a second threaded seat, a second threaded cylinder, a second sensor, a first mounting screw, a first mounting sleeve, a second mounting screw, a second mounting sleeve, and a loading sleeve, the first sensor and the second sensor can be installed in different positions respectively. The fitting position of the sensor is adjusted by utilizing the threaded connection relationship between the first threaded cylinder and the second threaded cylinder. At the same time, combined with the installation method of the first mounting sleeve and the loading sleeve, the monitoring position can be flexibly adjusted, thereby meeting the vibration monitoring needs of different parts and improving the applicability and installation flexibility of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view. Figure 3 This is a three-dimensional right-view structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 1 ; Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 2 ; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention when cut horizontally. Figure 1 ; Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention when cut horizontally. Figure 2 ; Figure 8 This is a three-dimensional, bottom-view structural diagram of the present invention; Figure 9 This utility model Figure 4 A magnified three-dimensional structural diagram of point A in the middle; Figure 10 This utility model Figure 6A magnified three-dimensional structural diagram of point B in the middle; Figure 11 This utility model Figure 7 A magnified three-dimensional structural diagram at point C.

[0016] In the diagram: 1. Motor body; 2. Gearbox body; 3. Adjustable limiting clamping mechanism; 301. Storage tube; 302. First mounting tube; 303. First adjusting screw; 304. Limiting insertion tube; 305. Second mounting tube; 306. Second adjusting screw; 307. First limiting connecting rod; 308. Second limiting connecting rod; 309. Connecting screw; 4. Fitting monitoring mechanism; 401. First threaded seat; 402. First threaded cylinder; 403. First sensor; 404. Second threaded seat; 405. Second threaded cylinder; 406. Second sensor; 407. First mounting screw; 408. First mounting sleeve; 409. Second mounting screw; 410. Second mounting sleeve; 411. Loading sleeve. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-11 In this embodiment of the utility model, a vibration monitoring device for a wind turbine gearbox includes a motor body 1, a gearbox body 2 fixedly mounted on the right end of the motor body 1, an adjustable limiting clamping mechanism 3 and a fitting monitoring mechanism 4 provided on the outer sides of the motor body 1 and the gearbox body 2. The adjustable limiting clamping mechanism 3 is used to establish the installation foundation of the entire vibration monitoring device, so that the fitting monitoring mechanism 4 can be installed without drilling or slotting the motor body 1 and the gearbox body 2. The fitting monitoring mechanism 4 is used to install a first sensor 403 and a second sensor 406, and adjusts the fitting position of the first sensor 403 and the second sensor 406 according to the actual monitoring requirements to meet the vibration monitoring requirements of different parts.

[0021] Specifically, the adjustable limiting clamping mechanism 3 includes a receiving tube 301, a first mounting tube 302, a first adjusting screw 303, a limiting insert 304, a second mounting tube 305, a second adjusting screw 306, a first limiting connecting rod 307, a second limiting connecting rod 308, and a connecting screw 309. The limiting insert 304 is inserted into the receiving tube 301, forming an insertion relationship, allowing the receiving tube 301 and the limiting insert 304 to adjust their overall length according to the installation dimensions of the motor body 1 and the gearbox body 2. The first mounting tube 302 is fixedly installed at the right end of the receiving tube 301, and the first adjusting screw 303 is threadedly connected to the inside of the first mounting tube 302. The extension length can be adjusted by rotating the first adjusting screw 303. The second mounting tube 305 is fixedly installed on the right end of the limiting insertion tube 304. The second adjusting screw 306 is threaded into the inside of the second mounting tube 305. The extension length can be adjusted by rotating the second adjusting screw 306. The first limiting connecting rod 307 is installed at the end of the first adjusting screw 303. The second limiting connecting rod 308 is installed at the end of the second adjusting screw 306. The connecting screw 309 is set between the first limiting connecting rod 307 and the second limiting connecting rod 308 to connect the upper and lower adjustable limiting clamping mechanisms 3, so that the entire adjustable limiting clamping mechanism 3 forms a stable clamping structure.

[0022] The fitting monitoring mechanism 4 includes a first threaded seat 401, a first threaded cylinder 402, a first sensor 403, a second threaded seat 404, a second threaded cylinder 405, a second sensor 406, a first mounting screw 407, a first mounting sleeve 408, a second mounting screw 409, a second mounting sleeve 410, and a loading sleeve 411. The first threaded seat 401 is internally threaded to the first threaded cylinder 402. The first sensor 403 is fixedly mounted to the rear end of the first threaded cylinder 402. The first mounting screw 407 is fixedly mounted to the upper and lower ends of the first threaded cylinder 402. The first mounting sleeve 408 is fixedly mounted to the outer wall of the first mounting tube 302. The first mounting screw 407 cooperates with the first mounting sleeve 408 to make the first threaded seat 404... 01. The first threaded cylinder 402 and the first sensor 403 are installed on the first mounting pipe 302; the second threaded seat 404 is internally threaded to the second threaded cylinder 405, the second sensor 406 is fixedly installed on the rear end of the second threaded cylinder 405, the second mounting screw 409 is fixedly installed on the upper and lower ends of the second threaded cylinder 405, the second mounting sleeve 410 is installed on the outside of the second mounting screw 409, and the rear end of the second mounting sleeve 410 is fixedly installed with a loading sleeve 411. The loading sleeve 411 is sleeved on the outside of the first adjusting screw 303 and can be adjusted in position along the first adjusting screw 303 so that the second threaded seat 404, the second threaded cylinder 405 and the second sensor 406 are installed on the first adjusting screw 303.

[0023] In this embodiment, during use, the adjustable limiting clamping mechanism 3 is first adjusted according to the actual installation dimensions of the motor body 1 and the gearbox body 2. The limiting insert 304 is inserted into the receiving tube 301. By changing the insertion length of the receiving tube 301 and the limiting insert 304, the overall length of the adjustable limiting clamping mechanism 3 meets the actual installation requirements. Then, according to the installation position of the gearbox body 2 and the installation space between the motor body 1 and the gearbox body 2, the first adjusting screw 303 and the second adjusting screw 306 are rotated respectively to change the extension length of the first adjusting screw 303 and the second adjusting screw 306. Then, according to the position of the outer annular groove of the gearbox body 2, the first limiting connecting rod 307 and the second limiting connecting rod 308 are installed in the corresponding positions, so that the first limiting connecting rod 307... The rod 307 and the second limiting rod 308 can form a limiting fit with the annular groove of the gearbox 2, while the receiving tube 301 and the limiting insert 304 abut against the outside of the motor body 1. At this time, the adjustable limiting clamping mechanism 3 set in the upper and lower layers is located on the upper and lower sides of the motor body 1 and the gearbox 2, respectively. Then, multiple connecting screws 309 are used to connect and fix the first limiting rod 307 and the second limiting rod 308 at corresponding positions in the upper and lower layers, so that the upper and lower layers form an integral clamping structure, thereby completing the installation of the adjustable limiting clamping mechanism 3. This allows the entire device to be stably installed on the outside of the motor body 1 and the gearbox 2, establishing a stable installation foundation for subsequent vibration monitoring. Furthermore, it does not require drilling or slotting the motor body 1 or the gearbox 2, and does not affect the original structure of the equipment.

[0024] After completing the installation of the adjustable limit clamping mechanism 3, the fitting monitoring mechanism 4 is installed. First, the first threaded seat 401 is installed on the outside of the first mounting tube 302, and fixedly installed with the first mounting screw 407 and the first mounting sleeve 408. Then, the first threaded cylinder 402 is threaded into the inside of the first threaded seat 401. The first sensor 403 is fixedly installed on the rear end of the first threaded cylinder 402. By rotating the first threaded cylinder 402, the position of the first sensor 403 is adjusted axially to change the fitting position between the first sensor 403 and the motor body 1 or gearbox body 2. At the same time, the mounting... The carrier sleeve 411 is fitted onto the outside of the first adjusting screw 303, and the installation position of the carrier sleeve 411 on the first adjusting screw 303 is adjusted according to the actual monitoring position. Then, the second threaded seat 404 is installed through the second mounting sleeve 410 and the second mounting screw 409. Subsequently, the second threaded cylinder 405 is threaded into the inside of the second threaded seat 404, and the second sensor 406 is fixedly installed on the rear end of the second threaded cylinder 405. By rotating the second threaded cylinder 405, the contact position of the second sensor 406 is adjusted so that the second sensor 406 can maintain a contact state with the corresponding monitoring part according to the actual monitoring requirements.

[0025] Furthermore, since the first mounting sleeve 408 is fixedly installed on the outer wall of the first mounting tube 302, the first sensor 403 can be installed at different positions of the first mounting sleeve 408 according to actual monitoring needs to change the monitoring position. The second sensor 406 can be adjusted in position along the first adjusting screw 303 with the help of the loading sleeve 411, so that the second sensor 406 can also adapt to the installation requirements of different positions. The first sensor 403 and the second sensor 406 can not only monitor the vibration of the gearbox 2, but also be installed at the corresponding position of the motor body 1 according to actual use needs to monitor the vibration. This allows the same vibration monitoring device to be applicable to the installation requirements of different types of wind turbines and different monitoring parts. While ensuring the integrity of the original structure of the equipment, the device's installation adaptability, installation flexibility and on-site maintenance convenience are improved.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration monitoring device for a wind turbine gearbox, comprising a motor body (1), wherein a gearbox body (2) is fixedly mounted on the right end of the motor body (1), characterized in that: An adjustable limiting clamping mechanism (3) and a fitting monitoring mechanism (4) are provided on the outside of the motor body (1) and the gearbox body (2). The adjustable limiting clamping mechanism (3) includes a receiving tube (301), a limiting insertion tube (304), a first adjusting screw (303), a second adjusting screw (306), a first limiting connecting rod (307), a second limiting connecting rod (308), and a connecting screw (309), which are used to clamp on the outside of the motor body (1) and the gearbox body (2). The fitting monitoring mechanism (4) includes a first threaded seat (401), a first threaded cylinder (402), a first sensor (403), a second threaded seat (404), a second threaded cylinder (405), and a second sensor (406), which are used to install on the adjustable limiting clamping mechanism (3) and adjust the fitting position of the sensor and the monitoring part.

2. The wind turbine gearbox vibration monitoring device according to claim 1, characterized in that: A receiving tube (301) and a limiting tube (304) are provided at the rear of the motor body (1). The limiting tube (304) and the receiving tube (301) are connected by insertion. A first mounting tube (302) is fixedly installed at the right end of the receiving tube (301). A first adjusting screw (303) is connected to the internal thread of the first mounting tube (302). A second mounting tube (305) is fixedly installed at the right end of the limiting tube (304). A second adjusting screw (306) is connected to the internal thread of the second mounting tube (305).

3. The vibration monitoring device for a wind turbine gearbox according to claim 2, characterized in that: The first adjusting screw (303) is provided with a first limiting rod (307) at the end away from the first mounting tube (302), and the second adjusting screw (306) is provided with a second limiting rod (308) at the end away from the second mounting tube (305). A connecting screw (309) is provided between the first limiting rod (307) and the second limiting rod (308). The two sets of adjustable limiting clamping mechanisms (3) are distributed on the upper and lower layers outside the motor body (1) and the gearbox body (2).

4. The vibration monitoring device for a wind turbine gearbox according to claim 2, characterized in that: The first threaded seat (401) is internally threaded to a first threaded cylinder (402), and a first sensor (403) is fixedly installed at the rear end of the first threaded cylinder (402). A first mounting screw (407) is fixedly installed at both the upper and lower ends of the first threaded cylinder (402). A first mounting sleeve (408) is provided on the outer side of the first mounting screw (407), and the first mounting sleeve (408) is fixedly installed on the outer wall of the first mounting tube (302).

5. The vibration monitoring device for a wind turbine gearbox according to claim 4, characterized in that: The second threaded seat (404) is internally threaded to a second threaded cylinder (405). A second sensor (406) is fixedly installed at the rear end of the second threaded cylinder (405). A second mounting screw (409) is fixedly installed at both the upper and lower ends of the second threaded cylinder (405). A second mounting sleeve (410) is provided on the outer side of the second mounting screw (409). A loading sleeve (411) is fixedly installed at the rear end of the second mounting sleeve (410). The loading sleeve (411) is sleeved on the first adjusting screw (303).

6. The wind turbine gearbox vibration monitoring device according to claim 4, characterized in that: The first threaded cylinder (402) is threadedly connected to the first threaded seat (401), and the contact position of the first sensor (403) is adjusted by rotating the first threaded cylinder (402).

7. The vibration monitoring device for a wind turbine gearbox according to claim 5, characterized in that: The second threaded cylinder (405) is threadedly connected to the second threaded seat (404), and the contact position of the second sensor (406) is adjusted by rotating the second threaded cylinder (405).

8. The vibration monitoring device for a wind turbine gearbox according to claim 5, characterized in that: The first mounting sleeve (408) is fixedly installed on the outer wall of the first mounting tube (302), and the second mounting sleeve (410) is installed on the first adjusting screw (303) through the loading sleeve (411) to realize the adjustment of the installation position of the first sensor (403) and the second sensor (406).

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