CN218953494U - Wind turbine generator system bolt state monitoring device - Google Patents
Wind turbine generator system bolt state monitoring device Download PDFInfo
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- CN218953494U CN218953494U CN202223447399.7U CN202223447399U CN218953494U CN 218953494 U CN218953494 U CN 218953494U CN 202223447399 U CN202223447399 U CN 202223447399U CN 218953494 U CN218953494 U CN 218953494U
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- block
- bolt
- monitoring device
- ranging sensor
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- 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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Abstract
The utility model is applicable to the field of wind turbine generator bolt detection, and provides a wind turbine generator bolt state monitoring device which comprises at least one group of ranging sensor transmitting modules, wherein the ranging sensor transmitting modules are detachably arranged on the outer wall of the side face of a positioning cover through a connecting assembly, the positioning cover is matched with a nut, and the positioning cover is covered on the nut; the system also comprises at least two groups of ranging sensor receiving modules, wherein the ranging sensor receiving modules are arranged on the top block assembly and are positioned right above the motion trail of the ranging sensor transmitting modules; the distance measuring device further comprises a data collector, and the data collector is electrically connected with the distance measuring sensor receiving module. According to the bolt state monitoring device provided by the utility model, the distance clearance monitoring is realized through the cooperation of the ranging sensor transmitting module and the ranging sensor receiving module, and meanwhile, the accuracy of judging the bolt state is ensured through the monitoring in combination with the rotating process.
Description
Technical Field
The utility model belongs to the field of wind turbine generator bolt detection, and particularly relates to a wind turbine generator bolt state monitoring device.
Background
In a wind turbine generator, connecting bolts at key parts of blades and towers are very important components, and the whole wind turbine generator runs in quite severe working environments of variable working conditions and alternating loads, so that various types of faults can be frequently generated.
The connecting bolt is subjected to the influence of alternating load due to severe working environment, so that the problems of loosening, deformation, fracture and the like of the bolt can be caused. Therefore, the monitoring significance of the bolt connection state is great, and in order to avoid problems in the running process of the wind turbine, a corresponding bolt state monitoring device is required to be installed so as to monitor the bolt state in the wind turbine. The traditional monitoring of the bolt fastening state of the front wind turbine generator is generally realized by manually marking after fastening, and then judging the bolt fastening state by observing the deviation condition of the mark line, and whether the mark line deviates or not can be discovered only by checking in the field at fixed time.
Disclosure of Invention
The embodiment of the utility model aims to provide a wind turbine generator bolt state monitoring device, and aims to solve the technical problems that the existing bolt state monitoring mode has hysteresis, hidden danger cannot be found in time and early warning treatment cannot be carried out, and the requirement of current-stage bolt state real-time monitoring cannot be met.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
The wind turbine generator system bolt state monitoring device comprises a bolt assembly, wherein the bolt assembly comprises a bolt and a nut matched with the bolt;
further comprises:
at least one group of ranging sensor transmitting modules are detachably mounted on the outer side wall of the side face of the positioning cover through a connecting component, the positioning cover is matched with the nut, the positioning cover is arranged on the nut, and the nut and the positioning cover are of matched polygonal structures, so that the positioning cover is driven to rotate when the nut rotates;
the ranging sensor receiving modules are arranged on the top block assembly and are positioned right above the motion trail of the ranging sensor transmitting module;
the data acquisition device is electrically connected with the ranging sensor receiving module and is used for acquiring data information monitored by the ranging sensor receiving module.
In an embodiment of the present utility model, the data collector is electrically connected to a communication cable, and the early warning information is transmitted to the control terminal through the communication cable.
In a preferred embodiment provided by the present utility model, the top block assembly includes:
the ranging sensor receiving module is fixedly arranged on the top plate;
the polygonal limiting block is fixedly arranged on the top plate, and a polygonal limiting groove matched with the polygonal limiting block is formed in the top end of the bolt.
In an preferred embodiment of the present utility model, the top plate is fixed at the top end of the bolt in a magnetic attraction manner, and the polygonal limiting block abuts against the polygonal limiting groove when the top plate is fixed at the top end of the bolt.
In a preferred embodiment of the present utility model, the positioning cover covered on the nut is fixed by a magnetic structure.
In a preferred embodiment provided by the present utility model, the magnetic attraction structure includes:
a magnetic ring block;
the magnetic ring groove is matched with the magnetic ring block, the magnetic ring groove is arranged on the top surface of the positioning cover, the magnetic ring groove is used for accommodating the magnetic ring block, the magnetic ring block is placed in the magnetic ring groove, and the positioning cover covered on the nut is fixed by utilizing the magnetic property between the magnetic ring block and the nut.
In a preferred embodiment provided by the utility model, the inner wall of the positioning cover is provided with the limiting protrusion, and the positioning cover is propped against the outer wall of the nut, so that when the positioning cover is arranged on the nut, the positioning cover is tightly connected with the nut, and the positioning cover is prevented from generating rotary displacement in the horizontal direction relative to the nut.
In a preferred embodiment provided by the utility model, a connecting groove is formed in the outer wall of the positioning cover, and a limiting block is fixedly arranged in the connecting groove; the end part of the connecting groove is also provided with a locking groove matched with the connecting assembly.
In a preferred embodiment provided by the present utility model, the connection assembly comprises:
the connecting block is fixedly provided with a positioning block, the positioning block is provided with a limiting groove matched with the limiting block, and when the connecting block is arranged in the connecting groove, the limiting block is propped against the limiting groove to avoid the relative movement of the connecting block in the connecting groove;
the locking block is provided with a supporting inclined plane, and the direction of the supporting inclined plane is the same as the feeding direction when the connecting block is arranged in the connecting groove;
and the locking block is arranged on the connecting block in a sliding manner through the support spring.
In a preferred embodiment of the present utility model, the connection block is fixedly mounted on a mounting plate, and the ranging sensor transmitting module is fixedly mounted on the mounting plate.
Compared with the prior art, the bolt state monitoring device provided by the utility model has the following technical advantages:
according to the bolt state monitoring device, the positioning cover covered on the nut is utilized, so that the nut can drive the positioning cover to rotate when rotating, wherein the distance sensor transmitting module is detachably arranged on the positioning cover, and the distance gap between the distance sensor transmitting module and the distance sensor receiving module is monitored when the distance sensor transmitting module is opposite to the distance sensor receiving module through the matching of the distance sensor transmitting module and the distance sensor receiving module; in addition, through the ranging sensor receiving module arranged on the top block assembly, the ranging sensor transmitting module passes through the lower parts of different ranging sensor receiving modules, so that the rotating state process of the nut relative to the bolt can be monitored, and the bolt state can be further judged by combining the gap monitoring through the monitoring of the rotating process while the distance gap monitoring is realized;
in the second aspect, the top block assembly provided by the bolt state monitoring device is installed at the top end of the bolt in a magnetic attraction mode, and the positioning cover is installed on the nut in a magnetic attraction structure, so that the bolt state monitoring device is convenient to assemble and disassemble as a whole, and convenient to maintain in the later period.
Drawings
FIG. 1 is a schematic perspective view of a wind turbine generator system bolt state monitoring device according to the present utility model;
FIG. 2 is a front view of a monitoring device according to the present utility model;
FIG. 3 is a top view of a monitoring device provided by the present utility model;
FIG. 4 is a schematic partial perspective view of a monitoring device according to the present utility model;
FIG. 5 is a perspective cross-sectional view of a positioning cover in the monitoring device provided by the utility model;
FIG. 6 is a schematic view of a partial enlarged structure at A in FIG. 5;
FIG. 7 is a schematic structural diagram of a connection assembly in the monitoring device according to the present utility model;
FIG. 8 is a schematic diagram of a top block assembly of the monitoring device according to the present utility model;
fig. 9 is a schematic view of the installation site of the monitoring device provided by the utility model.
In fig. 1-9: 10. a monitoring device; 11. a bolt assembly;
100. a bolt; 101. polygonal limit grooves;
200. a flange group; 201. a first flange; 202. a second flange;
300. a nut;
400. a positioning cover; 401. a connecting groove; 402. a limiting block; 403. a locking groove; 404. a limit protrusion; 405. a magnetic ring groove;
500. a magnetic ring block;
600. a top block assembly; 601. a housing; 602. a polygonal limiting block; 603. a top plate;
700. a ranging sensor transmitting module; 701. a ranging sensor receiving module; 702. a mounting plate; 703. a connection assembly;
7031. a connecting block; 7032. a positioning block; 7033. a limit groove; 7034. a locking block; 7035. a support slope; 7036. a support spring;
800. a data collector; 801. a communication cable.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. Specific implementations of the utility model are described in detail below in connection with specific embodiments.
As shown in fig. 9, a wind turbine generator bolt status monitoring device is applied to online monitoring of a wind turbine generator bolt pretightening force, and a monitoring device 10 is selectively installed on a plurality of bolt assemblies 11 without installing a monitoring device on each bolt assembly 11, wherein the plurality of monitoring devices are arranged in an intermittent distribution manner, for example, a group of monitoring devices 10 are arranged on adjacent bolt assemblies 11.
As shown in fig. 1 to 3, in the embodiment of the present utility model, the bolt status monitoring device 10 includes:
a bolt assembly 11, the bolt assembly 11 comprising a bolt 100, a nut 300 cooperating with the bolt 100;
at least one group of ranging sensor transmitting modules 700, the ranging sensor transmitting modules 700 are detachably mounted on the outer side wall of the side face of the positioning cover through a connecting assembly 703, the positioning cover 400 is matched with the nut 300, the positioning cover 400 is covered on the nut 300, and the nut 300 and the positioning cover 400 are of matched polygonal structures, so that the positioning cover 400 is driven to rotate when the nut 300 rotates;
at least two sets of ranging sensor receiving modules 701, wherein the ranging sensor receiving modules 701 are mounted on the top block assembly 600, and the ranging sensor receiving modules 701 are positioned right above the motion trail of the ranging sensor transmitting module 700;
the data collector 800 is electrically connected with the ranging sensor receiving module 701, and the data collector 800 is configured to obtain data information monitored by the ranging sensor receiving module 701.
Illustratively, the ranging sensor receiving modules 701 of at least two sets include a receiving module a, a receiving module b;
at least one group of ranging sensor transmitting modules 700 includes a transmitting module a;
when the pre-tightening force of the nut 300 relative to the bolt 100 changes, that is, along with a certain rotation of the nut 300 relative to the bolt 100, the transmitting module a can be converted from a state of aligning with the receiving module a to a state of aligning with the receiving module b, wherein when the transmitting module a aligns with the receiving module a, the receiving module a receives a signal of the transmitting module a to detect a distance A1 between the transmitting module a and the receiving module a; correspondingly, when the transmitting module a is aligned to the receiving module b, on one hand, it can be determined that the nut 300 rotates relative to the bolt 100, and further, the distance A2 between the transmitting module a and the receiving module b is combined with the change of the distance A2 relative to the distance A1, so that the nut 300 is determined to loose relative to the bolt 100, and accordingly, the loose change of the bolt state is monitored, and early warning information is transmitted through the data collector 800 in time.
Further, in the embodiment of the present utility model, the data collector 800 is electrically connected to a communication cable 801, and early warning information is transmitted to the control terminal through the communication cable 801.
Further, with continued reference to fig. 1, 3 and 8, in an embodiment of the present utility model, the top block assembly 600 includes:
a top plate 603, the ranging sensor receiving module 701 being fixedly mounted on the top plate 603;
the polygonal limiting block 602 is fixedly arranged on the top plate 603, and the top end of the bolt 100 is provided with a polygonal limiting groove 101 matched with the polygonal limiting block 602;
in the embodiment of the present utility model, the top plate 603 is fixed at the top end of the bolt 100 by a magnetic attraction manner, and the polygonal limiting block 602 abuts against the polygonal limiting groove 101 when the top plate 603 is fixed at the top end of the bolt 100.
Furthermore, in the embodiment of the present utility model, the top plate 603 is further provided with a cover 601, and the cover 601 may be made of a magnet material, so as to fix the top plate 603 at the top end of the bolt 100 in a magnetic attraction manner.
In the embodiment of the present utility model, after the bolts 100 pass through the flange set 200, the flange set 200 is fixed by nuts 300 screwed on the bolts 100, and the flange set 200 includes a first flange 201 and a second flange 202, where the first flange 201 is a flange of a pitch bearing of a wind turbine, and the second flange 202 is a flange on a blade of the wind turbine, and the first flange 201 and the flange set 200 are connected and fixed by the nuts 300 matched with the bolts 100.
According to the bolt state monitoring device provided by the utility model, the positioning cover 400 covered on the nut 300 is utilized, so that the nut 300 can drive the positioning cover to rotate when rotating, wherein the distance gap between the distance measuring sensor transmitting module 700 and the distance measuring sensor receiving module 701 is monitored when the distance measuring sensor transmitting module 700 is opposite to the distance measuring sensor receiving module 701 due to the fact that the distance measuring sensor transmitting module 700 is detachably arranged on the positioning cover 400 and the distance measuring sensor receiving module 701 is matched; in addition, through the ranging sensor receiving module 701 disposed on the top block assembly 600, the ranging sensor transmitting module 700 passes under different ranging sensor receiving modules 701, so that the rotation state process of the nut 300 relative to the bolt 100 can be monitored, and thus, the bolt state can be further determined by combining the gap monitoring through the monitoring of the rotation process while the distance gap monitoring is realized.
It can be appreciated that when the distance sensor transmitting module 700 detects the distance from the current distance sensor receiving module 701, and when the distance A2 is greater than the value of the distance A1 and the difference is greater than the threshold, the state of the bolt is pre-warned.
Further, in the embodiment of the present utility model, the positioning cover 400 covered on the nut 300 is fixed by a magnetic structure.
With continued reference to fig. 4-6, in an exemplary embodiment of the present utility model, the magnetic attraction structure includes:
a magnetic attraction ring block 500;
the magnetic ring groove 405 is matched with the magnetic ring block 500, the magnetic ring groove 405 is formed in the top surface of the positioning cover 400, the magnetic ring groove 405 is used for accommodating the magnetic ring block 500, and the positioning cover 400 covered on the nut 300 is fixed by placing the magnetic ring block 500 in the magnetic ring groove 405 and utilizing the magnetic property between the magnetic ring block 500 and the nut 300.
With continued reference to fig. 5, in the embodiment of the present utility model, the inner wall of the positioning cover 400 has a limiting protrusion 404, and the positioning cover 400 abuts against the outer wall of the nut 300, so that when the positioning cover 400 is covered on the nut 300, the positioning cover 400 is tightly connected with the nut 300, and rotational displacement of the positioning cover 400 relative to the nut 300 in the horizontal direction is avoided.
With continued reference to fig. 1-4 and fig. 7, in an embodiment of the present utility model, a connection groove 401 is formed on an outer wall of the positioning cover 400, and a limiting block 402 is fixedly disposed in the connection groove 401; the end of the connecting slot 401 is further provided with a locking slot 403 adapted to the connecting assembly 703.
Preferably, in an embodiment of the present utility model, the connection assembly 703 includes:
the connecting block 7031, a positioning block 7032 is fixedly arranged on the connecting block 7031, a limiting groove 7033 matched with the limiting block 402 is formed in the positioning block 7032, and when the connecting block 7031 is installed in the connecting groove 401, the limiting block 402 abuts against the limiting groove 7033 so as to prevent the connecting block 7031 from generating relative movement in the connecting groove 401;
a locking block 7034, wherein the locking block 7034 is provided with a supporting inclined surface 7035, and the direction of the supporting inclined surface 7035 is the same as the feeding direction when the connecting block 7031 is installed in the connecting groove 401;
a support spring 7036, and the lock block 7034 is slidably provided on the connection block 7031 by the support spring 7036.
In the specific implementation of the connection assembly 703 provided by the present utility model, when the connection block 7031 needs to be installed in the connection slot 401, the limiting block 402 is first abutted in the limiting slot 7033, so that no offset is generated when the connection block 7031 continues to feed;
further, during the continuous feeding of the connection block 7031, the supporting inclined surface 7035 abuts against the edge of the connection groove 401, so that the locking block 7034 is retracted into the connection block 7031, and the supporting spring 7036 is in a compressed state; when the locking block 7034 is opposite to the locking groove 403, the locking block 7034 is propped in the locking groove 403 under the reset supporting action of the supporting spring 7036, and the process of installing the connecting block 7031 in the connecting groove 401 is completed, so that the utility model is convenient for selectively installing the ranging sensor transmitting modules 700 in number, and is convenient for installing and maintaining the ranging sensor transmitting modules 700.
With continued reference to fig. 1-4, in an embodiment of the present utility model, the connection block 7031 is fixedly mounted on the mounting plate 702, and the ranging sensor transmitting module 700 is fixedly mounted on the mounting plate 702.
The top block assembly 600 provided by the embodiment of the utility model is installed at the top end of the bolt 100 in a magnetic attraction manner, and the positioning cover 400 is also installed on the nut 300 in a magnetic attraction structure, so that the bolt state monitoring device is convenient to assemble and disassemble as a whole, and convenient to maintain in later period.
Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A wind turbine generator system bolt state monitoring device comprises a bolt assembly;
the bolt component comprises a bolt and a nut matched with the bolt; the method is characterized in that:
further comprises:
at least one group of ranging sensor transmitting modules, wherein the ranging sensor transmitting modules are detachably arranged on the outer wall of the side face of the positioning cover through a connecting component, the positioning cover is matched with the nut, and the positioning cover is covered on the nut;
the ranging sensor receiving modules are arranged on the top block assembly and are positioned right above the motion trail of the ranging sensor transmitting module;
the data acquisition device is electrically connected with the ranging sensor receiving module and is used for acquiring data information monitored by the ranging sensor receiving module.
2. The wind turbine generator system bolt state monitoring device according to claim 1, wherein the data collector is electrically connected with a communication cable, and early warning information is transmitted to the control terminal through the communication cable.
3. The wind turbine generator bolt status monitoring device of claim 2, wherein the top block assembly comprises:
the ranging sensor receiving module is fixedly arranged on the top plate;
the polygonal limiting block is fixedly arranged on the top plate, and a polygonal limiting groove matched with the polygonal limiting block is formed in the top end of the bolt.
4. The wind turbine generator system bolt state monitoring device according to claim 3, wherein the top plate is fixed at the top end of the bolt in a magnetic attraction mode, and the polygonal limiting block abuts against the polygonal limiting groove when the top plate is fixed at the top end of the bolt.
5. The wind turbine generator system bolt state monitoring device according to any one of claims 2 to 4, wherein a positioning cover covered on the nut is fixed by a magnetic attraction structure.
6. The wind turbine generator system bolt status monitoring device of claim 5, wherein the magnetic attraction structure comprises:
a magnetic ring block;
the magnetic ring groove is matched with the magnetic ring block, the magnetic ring groove is arranged on the top surface of the positioning cover, and the magnetic ring groove is used for accommodating the magnetic ring block.
7. The wind turbine generator system bolt state monitoring device according to claim 6, wherein the inner wall of the positioning cover is provided with a limiting protrusion, and the positioning cover abuts against the outer wall of the nut.
8. The wind turbine generator system bolt state monitoring device according to claim 6, wherein a connecting groove is formed in the outer wall of the positioning cover, and a limiting block is fixedly arranged in the connecting groove; the end part of the connecting groove is also provided with a locking groove matched with the connecting assembly.
9. The wind turbine generator system bolt status monitoring device of claim 8, wherein the connection assembly comprises:
the connecting block is fixedly provided with a positioning block, the positioning block is provided with a limiting groove matched with the limiting block, and the limiting block is propped against the limiting groove when the connecting block is arranged in the connecting groove;
the locking block is provided with a supporting inclined plane, and the direction of the supporting inclined plane is the same as the feeding direction when the connecting block is arranged in the connecting groove;
and the locking block is arranged on the connecting block in a sliding manner through the support spring.
10. The wind turbine generator system bolt status monitoring device of claim 9, wherein the connection block is fixedly mounted on a mounting plate, and the ranging sensor transmitting module is fixedly mounted on the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223447399.7U CN218953494U (en) | 2022-12-22 | 2022-12-22 | Wind turbine generator system bolt state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223447399.7U CN218953494U (en) | 2022-12-22 | 2022-12-22 | Wind turbine generator system bolt state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218953494U true CN218953494U (en) | 2023-05-02 |
Family
ID=86107075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223447399.7U Active CN218953494U (en) | 2022-12-22 | 2022-12-22 | Wind turbine generator system bolt state monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218953494U (en) |
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2022
- 2022-12-22 CN CN202223447399.7U patent/CN218953494U/en active Active
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