CN115288949A - Aerogenerator bearing vibrations monitoring early warning device - Google Patents

Aerogenerator bearing vibrations monitoring early warning device Download PDF

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Publication number
CN115288949A
CN115288949A CN202210921702.8A CN202210921702A CN115288949A CN 115288949 A CN115288949 A CN 115288949A CN 202210921702 A CN202210921702 A CN 202210921702A CN 115288949 A CN115288949 A CN 115288949A
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CN
China
Prior art keywords
bearing
vibration
controller
warning device
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210921702.8A
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Chinese (zh)
Inventor
王金山
田文强
杨群
李小雨
胡克男
乔光耀
许磊
李�杰
巴根那
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Datang Urad Rear Banner New Energy Co ltd
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Datang Urad Rear Banner New Energy Co ltd
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Application filed by Datang Urad Rear Banner New Energy Co ltd filed Critical Datang Urad Rear Banner New Energy Co ltd
Priority to CN202210921702.8A priority Critical patent/CN115288949A/en
Publication of CN115288949A publication Critical patent/CN115288949A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a vibration monitoring and early warning device for a wind driven generator bearing, which comprises a main body component, a fixing component and a monitoring component, wherein the main body component comprises an engine room and a bearing; the monitoring assembly comprises a vibration sensor, a grating sensor, a controller, a standby power supply and a wireless signal transmitter; a vibration sensor is installed on one side of the bearing, a grating sensor, a controller and a standby power supply are installed on the top of the inner wall of the cabin, and a wireless signal transmitter is installed on the upper surface of the cabin. The operation condition of the bearing is monitored through the vibration sensor, when the bearing vibrates excessively, the grating sensor is turned on by the controller to detect the direction, amplitude, period, frequency and other data of the vibration of the bearing, if the vibration exceeds the load, the wireless signal transmitter sends a signal to the server to perform early warning, the condition of the bearing can be accurately monitored, meanwhile, the vibration data can be sent to the server, and maintenance personnel can conveniently maintain the wind turbine generator.

Description

Aerogenerator bearing vibrations monitoring early warning device
The technical field is as follows:
the invention relates to an early warning device, in particular to a vibration monitoring and early warning device for a wind driven generator bearing, and belongs to the technical field of wind power generation safety.
Background art:
the wind generating set comprises a wind wheel and a generator, wherein the wind wheel comprises blades, a hub, a reinforcing member and the like, and the wind wheel has the functions of generating electricity by the rotation of the blades under the action of wind power, rotating a generator head and the like. The wind power generation power supply comprises a wind generating set, a tower for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like.
In the power generation process of the wind driven generator, when a main shaft reaches a certain load rotating speed, the bearing and the bearing seat can generate periodic vibration, and the bearing can be locally damaged due to long-time vibration, so that the monitoring on the vibration of the bearing needs to be enhanced;
when the existing bearing vibration monitoring device is used, the bearing vibration is frequent, so that the monitoring device can frequently send out alarm signals, the bearing can bear the vibration with certain frequency and amplitude, and the bearing does not need to be maintained before exceeding the load, so that the existing monitoring device has inaccurate early warning, and therefore, the wind turbine bearing vibration monitoring and early warning device is provided.
The invention content is as follows:
the invention aims to provide a wind driven generator bearing vibration monitoring and early warning device to solve one of the problems in the background technology.
The invention is implemented by the following technical scheme: a wind driven generator bearing vibration monitoring and early warning device comprises a main body component, a fixing component and a monitoring component, wherein the main body component comprises a cabin and a bearing;
the monitoring assembly comprises a vibration sensor, a grating sensor, a controller, a standby power supply and a wireless signal transmitter;
a vibration sensor is installed on one side of the bearing, a grating sensor, a controller and a standby power supply are installed on the top of the inner wall of the cabin, and a wireless signal transmitter is installed on the upper surface of the cabin.
As further preferable in the present technical solution: the signal output ends of the vibration sensor and the grating sensor are in signal connection with the signal input end of the controller, the electric output end of the standby power supply is in electric connection with the electric input end of the controller, the electric output end of the controller is in electric connection with the electric input end of the grating sensor, and the signal output end of the controller is in signal connection with the signal input end of the wireless signal transmitter.
As further preferable in the present technical solution: the main body component comprises a cabin, a tower, a hub, fan blades, a main shaft, a bearing and a generator set;
the bottom of the engine room is rotatably connected with a tower.
As a further preferred aspect of the present invention: one side of cabin rotates and is connected with wheel hub, three fan blades are evenly installed to wheel hub's lateral wall.
As further preferable in the present technical solution: one side of the hub is fixedly connected with a main shaft, and one end of the main shaft penetrates through one side of the engine room.
As further preferable in the present technical solution: the outer side wall of the main shaft is sleeved with a bearing, and one end of the main shaft is fixedly connected with a generator set.
As further preferable in the present technical solution: the fixing assembly comprises a bearing seat, a bolt, a mounting seat and a spring;
and the outer side wall of the bearing is fixedly connected with a bearing seat.
As further preferable in the present technical solution: the bearing block is fixedly connected to the upper surface of the mounting seat through bolts, and a spring is fixedly connected between the bearing block and the mounting seat.
The invention has the advantages that: the invention monitors the running condition of the bearing through the vibration sensor, when the bearing vibrates excessively, the vibration sensor sends a signal to the controller, the controller turns on the grating sensor to detect a series of data such as the direction, the amplitude, the period, the frequency and the like of the vibration of the bearing, so as to judge whether the vibration of the bearing exceeds the load, if the vibration of the bearing exceeds the load, the grating sensor sends a signal to the controller, and the controller sends a signal to the server through the wireless signal transmitter to perform early warning, so that the vibration condition of the bearing can be accurately monitored, the error judgment of the vibration sensor can be prevented, meanwhile, the vibration data of the bearing can be sent to the server, and a maintenance worker can conveniently maintain the wind turbine generator.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the internal structure of a nacelle of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic cross-sectional view of a nacelle of the present invention;
fig. 4 is a schematic view of the bottom view of the interior of the nacelle according to the present invention.
In the figure: 10. a body assembly; 11. a nacelle; 12. a tower; 13. a hub; 14. a fan blade; 15. a main shaft; 16. a bearing; 17. a generator set; 20. a fixing assembly; 21. a bearing seat; 22. a bolt; 23. a mounting base; 24. a spring; 30. a monitoring component; 31. a vibration sensor; 32. a grating sensor; 33. a controller; 34. a standby power supply; 35. a wireless signal transmitter.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a wind turbine bearing vibration monitoring and early warning device comprises a main body component 10, a fixing component 20 and a monitoring component 30, wherein the main body component 10 comprises a cabin 11 and a bearing 16;
the monitoring assembly 30 comprises a vibration sensor 31, a grating sensor 32, a controller 33, a standby power supply 34 and a wireless signal transmitter 35;
the vibration sensor 31 is installed on one side of the bearing 16, the grating sensor 32, the controller 33 and the standby power supply 34 are installed on the top of the inner wall of the cabin 11, the wireless signal transmitter 35 is installed on the upper surface of the cabin 11, and the standby power supply 34 prevents the monitoring assembly 30 from losing the monitoring function due to power failure.
In this embodiment, specifically: the signal output ends of the vibration sensor 31 and the grating sensor 32 are in signal connection with the signal input end of the controller 33, the electrical output end of the standby power supply 34 is in electrical connection with the electrical input end of the controller 33, the electrical output end of the controller 33 is in electrical connection with the electrical input end of the grating sensor 32, and the signal output end of the controller 33 is in signal connection with the signal input end of the wireless signal transmitter 35.
In this embodiment, specifically: the main body component 10 comprises a cabin 11, a tower 12, a hub 13, fan blades 14, a main shaft 15, a bearing 16 and a generator set 17;
the bottom of the engine room 11 is rotatably connected with a tower 12, the direction of the engine room 11 can be adjusted according to the wind direction, wind energy is reasonably utilized, and the generating power is improved.
In this embodiment, specifically: one side of the engine room 11 is rotatably connected with a hub 13, three fan blades 14 are uniformly arranged on the outer side wall of the hub 13, the three fan blades 14 are high in conversion efficiency and cost-saving, the fan blades 14 drive the main shaft 15 to rotate at a low speed, and the main shaft 15 and the bearing 16 can vibrate during rotation.
In this embodiment, specifically: a main shaft 15 is fixedly connected to one side of the hub 13, one end of the main shaft 15 penetrates through one side of the nacelle 11, wind power generation is performed through rotation of the main shaft 15, and a braking device is arranged at one end of the main shaft 15 and can stop rotation of the main shaft 15 when vibration amplitude of the main shaft 15 exceeds excessive load.
In this embodiment, specifically: the outer side wall of the main shaft 15 is sleeved with a bearing 16, and one end of the main shaft 15 is fixedly connected with a generator set 17.
In this embodiment, specifically: the fixing assembly 20 comprises a bearing seat 21, a bolt 22, a mounting seat 23 and a spring 24;
the outer side wall of the bearing 16 is fixedly connected with a bearing seat 21, and the bearing seat 21 is used for fixing the bearing 16 and also plays a role in reducing axial and radial vibration of the bearing 16.
In this embodiment, specifically: the bearing seat 21 is fixedly connected to the upper surface of the mounting seat 23 through a bolt 22, a spring 24 is fixedly connected between the bearing seat 21 and the mounting seat 23, and the spring 24 plays a role in buffering and reduces the radial vibration amplitude of the bearing 16.
Working principle or structural principle: when the wind turbine normally operates, the fan blades 14 rotate under the action of wind force, the hub 13 is driven to rotate, the hub 13 drives the main shaft 15 and the bearing 16 to rotate together in the rotating process, when the main shaft 15 reaches a certain load rotating speed, the bearing 16 and the bearing seat 21 vibrate, if the vibration is too large, the vibration sensor 31 sends a signal to the controller 33, the controller 33 opens the grating sensor 32 to detect a series of data such as the vibration direction, amplitude, period, frequency and the like of the bearing 16, so as to judge whether the vibration of the bearing 16 exceeds the load, if the vibration of the bearing 16 exceeds the load, the grating sensor 32 sends a signal to the controller 33, the controller 33 sends a signal to a server through the wireless signal transmitter 35 to perform early warning, through twice detection, the accuracy of a monitoring result is guaranteed, the situation that a monitoring device is mistakenly judged is prevented, the time of maintenance personnel is wasted, meanwhile, the monitoring data can be provided for the maintenance personnel, the maintenance personnel is convenient to refer and analyze, and the maintenance efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a aerogenerator bearing vibrations monitoring early warning device, includes main part subassembly (10), fixed subassembly (20) and monitoring components (30), its characterized in that: the main body assembly (10) comprises a nacelle (11) and a bearing (16);
the monitoring component (30) comprises a vibration sensor (31), a grating sensor (32), a controller (33), a standby power supply (34) and a wireless signal transmitter (35);
vibration sensor (31) are installed to one side of bearing (16), grating sensor (32), controller (33) and stand-by power supply (34) are installed at the inner wall top of cabin (11), the last surface mounting of cabin (11) has wireless signal transmitter (35).
2. The wind turbine bearing vibration monitoring and warning device according to claim 1, wherein: the signal output part of vibration sensor (31) and grating sensor (32) is connected with controller (33) signal input part signal, stand-by power supply (34) electrical output part and controller (33) electrical input part electric connection, the electrical output part of controller (33) is connected with grating sensor (32) electrical input part electric connection, the signal output part of controller (33) is connected with the signal input part signal of wireless signal transmitter (35).
3. The wind turbine bearing vibration monitoring and warning device according to claim 1, wherein: the main body component (10) comprises a cabin (11), a tower (12), a hub (13), fan blades (14), a main shaft (15), a bearing (16) and a generator set (17);
the bottom of the engine room (11) is rotatably connected with a tower (12).
4. The wind turbine bearing vibration monitoring and warning device according to claim 3, wherein: one side of the engine room (11) is rotatably connected with a hub (13), and three fan blades (14) are uniformly arranged on the outer side wall of the hub (13).
5. The wind turbine bearing vibration monitoring and warning device according to claim 4, wherein: one side of the hub (13) is fixedly connected with a main shaft (15), and one end of the main shaft (15) penetrates through one side of the engine room (11).
6. The wind turbine bearing vibration monitoring and warning device according to claim 5, wherein: the outer side wall of the main shaft (15) is sleeved with a bearing (16), and one end of the main shaft (15) is fixedly connected with a generator set (17).
7. The wind turbine bearing vibration monitoring and warning device according to claim 6, wherein: the fixing assembly (20) comprises a bearing seat (21), a bolt (22), a mounting seat (23) and a spring (24);
and the outer side wall of the bearing (16) is fixedly connected with a bearing seat (21).
8. The wind turbine bearing vibration monitoring and warning device according to claim 7, wherein: the bearing seat (21) is fixedly connected to the upper surface of the mounting seat (23) through a bolt (22), and a spring (24) is fixedly connected between the bearing seat (21) and the mounting seat (23).
CN202210921702.8A 2022-08-02 2022-08-02 Aerogenerator bearing vibrations monitoring early warning device Pending CN115288949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210921702.8A CN115288949A (en) 2022-08-02 2022-08-02 Aerogenerator bearing vibrations monitoring early warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210921702.8A CN115288949A (en) 2022-08-02 2022-08-02 Aerogenerator bearing vibrations monitoring early warning device

Publications (1)

Publication Number Publication Date
CN115288949A true CN115288949A (en) 2022-11-04

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ID=83826353

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210921702.8A Pending CN115288949A (en) 2022-08-02 2022-08-02 Aerogenerator bearing vibrations monitoring early warning device

Country Status (1)

Country Link
CN (1) CN115288949A (en)

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