CN218512029U

CN218512029U - Wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique

Info

Publication number: CN218512029U
Application number: CN202222656054.6U
Authority: CN
Inventors: 刘庆
Original assignee: Zhiyuan Xinneng Beijing Technology Co ltd
Current assignee: Zhiyuan Xinneng Beijing Technology Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-02-21
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique belongs to and becomes oar bearing detection technology field. In order to solve the problem that a variable pitch bearing is inconvenient to detect and cannot determine the working state, a timing module is used for starting a second electric motor at regular time, the second electric motor drives a speed reducer and a rotating shaft to rotate, the rotating shaft drives a transmission gear to rotate, the transmission gear can externally surround the inside of a monitoring ring to move, a connecting rod and an annular guide rail are matched, a surrounding monitoring device is enabled to externally surround the upper end face of the monitoring ring to move in a surrounding manner, so that the outside of a wind motor bearing seat can be detected by an acoustic emission probe externally surrounding one side of the lower end of the monitoring ring, the position can be kept stable by the connecting rod, meanwhile, the external surrounding monitoring ring and the wind motor bearing seat can be conveniently disassembled and assembled by a positioning block, the surrounding work of three hundred sixty degrees can be performed, uniform detection work can be performed, a plurality of sensors are not required to be installed to detect the bearing, and consumption is reduced.

Description

Wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique

Technical Field

The utility model relates to a become oar bearing and detect technical field, specifically be wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique.

Background

With the rapid development of the wind power industry, wind turbine generators are developing towards the direction of low wind speed and high power, while the power is improved, fans put forward higher requirements on yaw variable pitch bearings of all subsystems as core parts of the wind turbine generators, most of the wind turbine generators depend on foreign import for a long time, and in recent years, a large number of excellent bearing manufacturers in China begin to show a brand-new corner in the field of wind power, and the wind turbine generators have the capability of designing, researching, manufacturing and testing megawatt wind turbine bearings.

The variable pitch bearing is used as the key of a variable pitch system, and the continuity stability and the accuracy of the whole variable pitch action are directly influenced, so that the investment on the design and the research of the variable pitch bearing is increased year by domestic and foreign manufacturers.

During the use of the pitch bearing, the following defects are often present:

1. the wind turbine generator is high in working strength, cannot monitor the stability of the bearing in time, and is not beneficial to long-term work.

2. The pitch bearing of the wind turbine generator is inconvenient to detect, and the working state cannot be determined.

Aiming at the defects, it is necessary to design a wind turbine generator variable pitch bearing state monitoring device based on an acoustic emission technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique has convenient in time monitoring, confirms operating condition's advantage, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique, including the outside monitoring ring that encircles, the outside is provided with the sliding tray around monitoring ring's upper end, the top of going up the sliding tray is installed and is encircleed monitoring devices, the sliding block is installed to the lower extreme that encircles monitoring devices, the axis of rotation is installed to the below of sliding block, drive gear is installed to the lower extreme of axis of rotation, drive gear's top is installed the axle sleeve, annular guide rail is all installed to the both sides of axle sleeve, just the axis of rotation passes and goes up the sliding tray and encircles monitoring ring sliding connection through the annular guide rail outside, the outside is provided with interior tooth's socket around monitoring ring's inside, drive gear is connected with the meshing of outside ring around monitoring ring through interior tooth's socket, the outside is encircleed monitoring ring's below and is installed the wind motor bearing frame, just encircle monitoring devices's lower extreme one side and install the probe, the linking arm is installed to the upper end of acoustic emission probe, the linking arm extends to and encircles monitoring devices inside and is connected with encircleing monitoring devices rotation.

Preferably, the outer part of the outer surrounding monitoring ring is provided with an outer sliding groove, one side of the outer part of the surrounding monitoring device is provided with a connecting sleeve, the lower end of the connecting sleeve is provided with a connecting rod, and the connecting rod extends into the outer sliding groove and is in sliding connection with the outer surrounding monitoring ring.

Preferably, the inside of encircling the monitoring devices is provided with a first electric motor, the first electric motor passes through hold-in range and linking arm swing joint, the outside is provided with the monitoring mouth around the inside centre of monitoring ring.

Preferably, the inner surface of the wind motor bearing seat is provided with a bearing ball, a variable pitch coupler is arranged in the middle of the inner part of the wind motor bearing seat and is rotatably connected with the wind motor bearing seat through the bearing ball, a positioning block is arranged between the external surrounding monitoring ring and the wind motor bearing seat, and the positioning block is clamped with the external surrounding monitoring ring and the wind motor bearing seat respectively.

Preferably, encircle monitoring devices's inside upper end and install the second electric motor, the reduction gear is installed to the lower extreme of second electric motor, the reduction gear passes through shaft coupling fixed connection with the axis of rotation, just one side of second electric motor is provided with the circuit board, the circuit board includes controller module and timer module, just encircle monitoring devices's upper end and install the battery.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique, in long-term work, accessible timing module regularly starts the second electric motor, the second electric motor drives reduction gear and axis of rotation and rotates, the axis of rotation drives drive gear and rotates, drive gear rotates, can externally encircle the inside removal of monitoring ring, cooperation connecting rod and ring rail, make around monitoring device externally encircle the up end encircleing of monitoring ring and remove, thereby can make the outside detect the work around the acoustic emission probe of monitoring ring lower extreme one side to the outside of wind turbine bearing frame, the accessible connecting rod keeps the position stable, simultaneously the accessible locating piece makes things convenient for the outside to encircle monitoring ring and carry out the dismouting with wind turbine bearing frame, the encircleing work of accessible three hundred sixty degrees, carry out even detection achievement, need not install a plurality of sensor detection bearings, the consumption is reduced.

2. This wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique, in the testing process, but timing module time switch first electric motor and second electric motor, when reducing the consumption, first electric motor drives linking arm and acoustic emission probe and moves about for the emission angle of acoustic emission probe adjusts, thereby adaptable different operational environment, and it is convenient to detect, can be favorable to long-term work, strong adaptability.

Drawings

FIG. 1 is an overall front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is an internal block diagram of an external wrap monitoring ring of the present invention;

fig. 5 is an internal structure diagram of the surrounding monitoring device of the present invention.

In the figure: 1. an outer surrounding monitoring loop; 2. an upper sliding groove; 3. a surround monitoring device; 4. an acoustic emission probe; 5. a slider; 6. a connecting sleeve; 7. a connecting rod; 8. an outer sliding groove; 9. a wind motor bearing seat; 10. a variable pitch coupling; 11. a storage battery; 12. a bearing ball; 13. positioning blocks; 14. a monitoring port; 15. a rotating shaft; 16. a shaft sleeve; 17. an annular guide rail; 18. a transmission gear; 19. an inner tooth socket; 20. a first electric motor; 21. a connecting arm; 22. a second electric motor; 23. a circuit board; 24. and a speed reducer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a wind turbine generator pitch bearing state monitoring device based on an acoustic emission technology includes an external surrounding monitoring ring 1, an upper sliding groove 2 is formed in the upper end of the external surrounding monitoring ring 1, a surrounding monitoring device 3 is installed above the upper sliding groove 2, a sliding block 5 is installed at the lower end of the surrounding monitoring device 3, a rotating shaft 15 is installed below the sliding block 5, a transmission gear 18 is installed at the lower end of the rotating shaft 15, a shaft sleeve 16 is installed above the transmission gear 18, annular guide rails 17 are installed on two sides of the shaft sleeve 16, the rotating shaft 15 penetrates through the upper sliding groove 2 and is slidably connected with the external surrounding monitoring ring 1 through the annular guide rails 17, an internal toothed groove 19 is formed in the external surrounding monitoring ring 1, the transmission gear 18 is connected with the external surrounding monitoring ring 1 in a meshed mode through the internal toothed groove 19, a bearing seat 9 of a wind motor is installed below the external surrounding monitoring ring 1, an acoustic emission probe 4 is installed on one side of the lower end of the surrounding monitoring device 3, a connecting arm 21 is installed on the upper end of the external surrounding monitoring ring 1, the connecting arm 21 extends to the inside of the surrounding monitoring device 3 and is rotatably connected with the surrounding monitoring device 3 through the connecting shaft, the connecting arm 4, the bearing seat is capable of uniformly detecting operation without reducing the consumption of the operation of six-degree of the external surrounding monitoring device, and the operation of detecting the wind turbine generator bearing, and the operation of the six-detecting sensor is uniformly installed, and the six-degree detection sensor.

The outside is provided with outer sliding tray 8 around monitoring ring 1's outside, encircles monitoring devices 3's outside one side and installs connecting sleeve 6, and connecting rod 7 is installed to connecting sleeve 6's lower extreme, and connecting rod 7 extends to outside inside and outside surrounding monitoring ring 1 sliding connection of sliding tray 8, and accessible connecting rod 7 keeps the position stable, and accessible locating piece 13 makes things convenient for the outside to encircle monitoring ring 1 simultaneously and carries out the dismouting with wind-powered electricity generation machine bearing housing 9.

Encircle monitoring devices 3's internally mounted have first electric motor 20, first electric motor 20 passes through hold-in range and linking arm 21 swing joint, and the inside centre that outside encircles monitoring ring 1 is provided with monitoring mouth 14, and first electric motor 20 drives linking arm 21 and acoustic emission probe 4 and moves about for acoustic emission probe 4's transmission angle adjusts, thereby adaptable different operational environment, and it is convenient to detect, can be favorable to long-term work, strong adaptability.

The inner surface of the wind motor bearing seat 9 is provided with a bearing ball 12, a variable pitch coupling 10 is arranged in the middle of the inside of the wind motor bearing seat 9, the variable pitch coupling 10 is rotatably connected with the wind motor bearing seat 9 through the bearing ball 12, a positioning block 13 is arranged between the external surrounding monitoring ring 1 and the wind motor bearing seat 9, the positioning block 13 is clamped with the external surrounding monitoring ring 1 and the wind motor bearing seat 9 respectively, and the variable pitch shaft can work conveniently through the wind motor bearing seat 9.

Install second electric motor 22 around monitoring devices 3's inside upper end, reduction gear 24 is installed to second electric motor 22's lower extreme, reduction gear 24 passes through shaft coupling fixed connection with axis of rotation 15, and one side of second electric motor 22 is provided with circuit board 23, circuit board 23 includes controller module and timer module, and install battery 11 around monitoring devices 3's upper end, second electric motor 22 drives reduction gear 24 and axis of rotation 15 and rotates, axis of rotation 15 drives drive gear 18 and rotates, drive gear 18 rotates, can externally encircle monitoring rings 1 inside removal, cooperation connecting rod 7 and ring rail 17, make to encircle monitoring devices 3 and externally encircle the removal around monitoring rings 1's up end.

In summary, in the wind turbine generator pitch bearing state monitoring device based on the acoustic emission technology, during long-term operation, the second electric motor 22 can be started at regular time through the timing module, the second electric motor 22 drives the speed reducer 24 and the rotating shaft 15 to rotate, the rotating shaft 15 drives the transmission gear 18 to rotate, the transmission gear 18 can rotate and can move outside around the inside of the monitoring ring 1, and the connecting rod 7 and the annular guide rail 17 are matched to enable the surrounding monitoring device 3 to move outside around the upper end face of the monitoring ring 1, so that the acoustic emission probe 4 on one side of the lower end of the surrounding monitoring ring 1 can detect the outside of the wind turbine bearing seat 9, the connecting rod 7 can keep stable in position, meanwhile, the positioning block 13 can facilitate the mounting and dismounting of the surrounding monitoring ring 1 and the wind turbine bearing seat 9, uniform detection can be performed through the surrounding operation of three hundred sixty degrees, multiple sensors are not needed to detect the bearing, consumption is reduced, during the detection process, the timing module can switch the first electric motor 20 and the second motor 22 on the timing, while the connecting arm 20 drives the emission probe 21 to perform the activity, so that the acoustic emission probe 4 can be adjusted in different emission angles, and thus the acoustic emission environment can be adapted to adjust the acoustic emission environment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. Wind turbine generator system becomes oar bearing state monitoring devices based on acoustic emission technique includes outside monitoring ring (1) of encircleing, its characterized in that: the utility model discloses a monitoring device, including monitoring ring (1), outside monitoring ring (1), upper end is provided with sliding tray (2) around monitoring device (1), go up the top of sliding tray (2) and install around monitoring device (3), sliding block (5) are installed to the lower extreme that encircles monitoring device (3), axis of rotation (15) are installed to the below of sliding block (5), drive gear (18) are installed to the lower extreme of axis of rotation (15), axle sleeve (16) are installed to the top of drive gear (18), annular guide (17) are all installed to the both sides of axle sleeve (16), just axis of rotation (15) pass sliding tray (2) and pass through the outside monitoring ring (1) sliding connection that encircles of annular guide (17), the inside of outside monitoring ring (1) is provided with interior tooth's socket (19), drive gear (18) are connected around monitoring ring (1) meshing through interior tooth's socket (19) and outside, the outside is installed wind motor linking arm (9) around the below of monitoring ring (1), just the lower extreme one side of encircling monitoring device (3) is installed probe (4), the last acoustic emission (21) of sound emission is installed and is connected through monitoring device (3) rotation monitoring device (3).

2. The acoustic emission technology-based wind turbine generator pitch bearing state monitoring device according to claim 1, wherein: the outside is provided with outer sliding tray (8) around monitoring ring (1) outside, encircle outside one side of monitoring devices (3) and install connecting sleeve (6), connecting rod (7) are installed to the lower extreme of connecting sleeve (6), connecting rod (7) extend to outside inside and the outside sliding tray (8) sliding connection of surrounding monitoring ring (1).

3. The acoustic emission technology-based wind turbine generator pitch bearing state monitoring device of claim 1, wherein: the utility model discloses a monitoring device, including monitoring ring (1), encircle monitoring device's internally mounted have first electric motor (20), first electric motor (20) pass through hold-in range and linking arm (21) swing joint, the outside is provided with monitoring mouth (14) around the inside centre of monitoring ring (1).

4. The acoustic emission technology-based wind turbine generator pitch bearing state monitoring device according to claim 1, wherein: the wind driven generator bearing seat is characterized in that bearing balls (12) are arranged on the inner surface of the wind driven generator bearing seat (9), a variable pitch coupling (10) is arranged in the middle of the inner portion of the wind driven generator bearing seat (9), the variable pitch coupling (10) is rotatably connected with the wind driven generator bearing seat (9) through the bearing balls (12), a positioning block (13) is installed between the outer surrounding monitoring ring (1) and the wind driven generator bearing seat (9), and the positioning block (13) is clamped with the outer surrounding monitoring ring (1) and the wind driven generator bearing seat (9) respectively.

5. The acoustic emission technology-based wind turbine generator pitch bearing state monitoring device according to claim 3, wherein: encircle the inside upper end of monitoring devices (3) and install second electric motor (22), reduction gear (24) are installed to the lower extreme of second electric motor (22), shaft coupling fixed connection is passed through with axis of rotation (15) in reduction gear (24), just one side of second electric motor (22) is provided with circuit board (23), circuit board (23) are including controller module and timer module, just battery (11) are installed to the upper end of encircleing monitoring devices (3).