CN204128674U - A kind of Portable wind motor detection apparatus - Google Patents
A kind of Portable wind motor detection apparatus Download PDFInfo
- Publication number
- CN204128674U CN204128674U CN201420539178.9U CN201420539178U CN204128674U CN 204128674 U CN204128674 U CN 204128674U CN 201420539178 U CN201420539178 U CN 201420539178U CN 204128674 U CN204128674 U CN 204128674U
- Authority
- CN
- China
- Prior art keywords
- probe
- reflector
- detection apparatus
- speed shaft
- vibration transducer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a kind of Portable wind motor detection apparatus, comprising: pick-up unit body; Pick-up unit body is arranged with body exterior respectively through data line, at least one vibration transducer is arranged with body exterior, at least one speed probe is connected; Described vibration transducer comprises, and can launch detection grating, receive the probe detecting grating and the reflector detection optical grating reflection that probe is launched being gone back to probe place.By arranging the vibration transducer be made up of probe and reflector, detect the displacement amplitude of corresponding bearing, to draw the vibration displacement amount of corresponding wind turbine assembly; More particularly, by arranging two displacement transducers of axis perpendicular on bearing, level and the vertical vibrating displacement of bearing is drawn, to improve the monitoring accuracy to wind turbine.Meanwhile, the utility model structure is simple, Be very effective, is suitable for promoting the use of.
Description
Technical field
The utility model relates to the wind turbine pick-up unit of power industry, particularly relates to a kind of Portable wind motor detection apparatus.
Background technology
China's wind energy turbine set majority is in mountain area with a varied topography or hilly country, as the driving-chain transmitting power, due to the instability of air-flow, works under causing gear case to be in complicated alternate load for a long time.Because equipment is arranged on tens meters of high-altitudes, inconvenience releasably delivers to factory repair, and can not Timeliness coverage problem to fault detect, bring potential safety hazard may to like this operation of equipment.From the fault that wind-driven generator group wheel box occurs at present, the damage and wear of the assemblies such as the high speed shaft mainly on driving-chain, gear case, slow-speed shaft.These wear and tear and occur the engagement between drive train components may being made unstable with the metal particle of rear surface, and make transmission efficiency decline generation noise, serious conditions may cause assembly damage, driving-chain disconnects wind turbine and shuts down.
For solving the problem, prior art document provides some and improves, such as:
Application number is the Chinese patent of CN201020534083.X, it discloses the technical scheme that vibration transducer is set respectively on each assembly of wind turbine: described vibration transducer group comprises forward spindle bearing radial vibration sensor, forward spindle bearing shaft is to vibration transducer, rear main shaft bearing axial vibration sensor, flexible supporting frames vibration transducer I, flexible supporting frames vibration transducer II, gear case inlet end axial vibration sensor, gear case gear ring vibration transducer, one-level parallel shafts radial vibration sensor, high speed shaft output shaft axial vibration sensor, load end vibration transducer outside load end vibration transducer and generator inside generator.
But, due in high speed shaft and the slow-speed shaft course of work, be in rotation status all the time; Therefore, which kind of vibration transducer be installed and how vibration transducer be installed, to realize the vibration displacement amount accurately detecting high speed shaft and slow-speed shaft, becoming urgent problem.And technique scheme is directly installed on wind turbine by vibration transducer, how under the prerequisite not changing wind turbine structure, a kind of portable, vibration transducer that measuring accuracy is high is set, also just becomes the problem needing to solve.
And in the middle of prior art, monitoring grating is utilized to judge the displacement transducer widespread use in multiple field of position light therebetween, its principle of work is as follows: probe launches detection grating, detect grating and transfer to the reflector place be made up of each several part of different reflecting rate, detection optical grating reflection is returned probe by reflector.After position between probe and reflector changes, detect the reflector part place that grating exposes to different reflecting rate, make the detection grating color change reflected, probe judges the displacement variable between probe and reflector according to the detection grating received.But, also do not apply displacement sensors to monitor the technical scheme of wind turbine vibration displacement.
Based on needing above and shortcoming, special proposition the utility model.
Utility model content
The purpose of this utility model is to provide a kind of Portable wind motor detection apparatus, to realize the object of the component detection to wind turbine; Another object is to provide a kind of sensor, accurately to detect each assembly vibration displacement amount of wind turbine.
The technical solution of the utility model is: a kind of Portable wind motor detection apparatus, comprising: pick-up unit body; Pick-up unit body is arranged with body exterior respectively through data line, at least one vibration transducer is arranged with body exterior, at least one speed probe is connected; Described vibration transducer comprises, and can launch detection grating, receive the probe detecting grating and the reflector detection optical grating reflection that probe is launched being gone back to probe place.
Further, described reflector is made up of the light-reflecting portion of the different reflecting rate of multistage.
Further, one end of reflector is to the relative other end, and each light-reflecting portion raises gradually according to reflecting rate or arranges successively with reducing.
Further, the center of reflector is to two ends, and each light-reflecting portion raises gradually according to reflecting rate successively or arranges with reducing.
Further, described probe is connected with data line; Described probe comprises housing, and the axis along housing is from up to down provided with the through hole running through case top successively, launches the lamp source detecting grating and the chip receiving detection grating.
Further, the detection grating that lamp source place sends penetrates housing from through hole, and along housing axis direction vertical sand shooting to reflector, detects after grating is reflected by reflector and transfer to chip place, the detection grating color that chip detection receives, to draw the position relationship between probe and reflector.
Further, wind turbine comprises the driving-chain be at least made up of high speed shaft, gear case, slow-speed shaft, generator; High speed shaft and slow-speed shaft are installed with on gear case through the bearing of correspondence respectively.
Further, bottom described probe, be provided with the base be made up of flat thin magnet, probe is removably fixedly connected with the bearing of high speed shaft or slow-speed shaft.
Further, described reflector is square, and square two adjacent side edge are respectively equipped with magnet strip, are removably fixedly connected with by reflector with the housing of gear case; The axis perpendicular of described reflector and probe is arranged, and the detection grating that probe is launched is reflected back probe place by reflector.
Further, the axis of probe and the corresponding concordant setting of reflector center light-reflecting portion.
Further, between described probe and reflector, L, described L are not less than the half of corresponding bearing outside diameter, are not more than 20 times of corresponding bearing outside diameter in a distance.
Further, the bearing periphery of high speed shaft and/or slow-speed shaft is respectively equipped with two vibration transducers, the perpendicular setting of probe axis of two vibration transducers.
Further, described pick-up unit body is made up of housing, is provided with data processing equipment in described housing, and described data processing equipment is connected with vibration transducer, speed probe respectively.
Further, housing is provided with a display screen, and described display screen is connected with data processing equipment.
Further, described housing is provided with control button, and described control button is connected with data processing equipment.
Further, pick-up unit body arrange with body exterior through data line, at least one temperature sensor is connected.
Further, described data processing equipment is connected with power supply unit; Described power supply unit is 220V AC power.
Further, described speed probe is made up of photoelectric encoder, and described photoelectric encoder is connected with data processing equipment through data collector, and described data collector is connected with vibration transducer.
Further, pick-up unit connects at least two vibration transducers, wherein at least comprises the first vibration transducer and the second vibration transducer; The radial direction of same detected assembly is all located at by the first described vibration transducer and the second vibration transducer, the first described vibration transducer and the perpendicular setting of the second vibration transducer.
Further, the first described vibration transducer is arranged in the horizontal direction, and the second vibration transducer is vertically arranged.
Further, described vibration transducer is provided with magnet mount pad.
The beneficial effects of the utility model are:
1, by said apparatus, wind turbine location of fault and trouble spot can be found fast and accurately, shorten wind turbine and repair and Wind turbines stop time of causing, and can Timeliness coverage problem, process in time.Meanwhile, by arranging speed probe, making the vibration to wind turbine assembly and the synchronous detection of rotating speed realization, to obtain synchrodata, improve the accuracy of detection;
2, by arranging by the vibration transducer of popping one's head in and reflector is formed, the displacement amplitude of corresponding bearing is detected, to draw the vibration displacement amount of corresponding wind turbine assembly;
3, by arranging two displacement transducers of axis perpendicular on bearing, level and the vertical vibrating displacement of bearing is drawn, to improve the monitoring accuracy to wind turbine;
4, by arranging magnet plate respectively on probe and reflector, make probe and reflector can fast, on the high speed shaft to be detected that is removably installed in wind turbine or slow-speed shaft;
5, simple, the Be very effective of the utility model structure, is suitable for promoting the use of.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structured flowchart of the present utility model;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is structured flowchart of the present utility model;
Fig. 5 is the mounting structure schematic diagram of wind turbine high speed shaft;
Fig. 6 is the mounting structure schematic diagram of wind turbine gear case;
Fig. 7 is the mounting structure schematic diagram of vibration transducer of the present utility model;
Fig. 8 is the similar alternative arrangements schematic diagram of vibration transducer of the present utility model;
Fig. 9 is that meeting of reflector of the present utility model detects grating face structural representation;
Figure 10 is that meeting of reflector of the present utility model detects the another kind of structural representation in grating face;
Figure 11 is that the back of the body of reflector of the present utility model detects grating face structural representation;
Figure 12 is probe cross section structure schematic diagram of the present utility model;
Component description: 1-housing, 2-display screen, 3-control button, 4-plug, 5-vibration transducer, 6-speed probe, 7-temperature sensor, 8-data collector, 9-power supply unit, 10-data processing equipment, 11-the first vibration transducer, 12-the second vibration transducer, 13-the three vibration transducer, 14-high speed shaft, 15-magnet mount pad, 16-bearing, 17-probe, 18-reflector, 19-gear box casing, 20-connecting link, 21-slow-speed shaft, 22-intermediate shaft, 23-gear case, 171-through hole, 172-lamp source, 173-chip, 174-flat thin magnet, 181-magnet strip.
Embodiment
As depicted in figs. 1 and 2, present embodiment discloses a kind of Portable wind motor detection apparatus, comprising: pick-up unit body; Pick-up unit body is arranged with body exterior respectively through data line, at least one vibration transducer 5 is arranged with body exterior, at least one speed probe 6 is connected.Described pick-up unit body is made up of housing 1, is provided with data processing equipment 10 in described housing 1, and described data processing equipment 10 is connected with vibration transducer 5, speed probe 6 respectively.
Housing 1 is provided with a display screen 2, and described display screen 2 is connected with data processing equipment 10.Described housing 1 is provided with and controls button 3, and described control button 3 is connected with data processing equipment 10.Described data processing equipment 10 is connected with power supply unit 9, described power supply unit 10 by housing 1 is arranged, the plug 4 that is connected with data processing equipment 10 through power lead, described plug 4 and 220V AC power are connected pluggablely.
Described wind turbine comprises the driving-chain be at least made up of high speed shaft 14, gear case 23, slow-speed shaft 21, generator.Preferably, at least one vibration transducer 5 of each correspondence respectively of each assembly on driving-chain, each vibration transducer 5 is located on corresponding wind turbine assembly respectively, to detect the Vibration Condition of corresponding assembly.Data processing equipment 10 gathers the signal that vibration transducer 5 sends, data processing equipment 10 is made comparisons the signal collected and parameter preset automatically, when finding that the data of one of them vibration transducer 5 monitoring exceed predetermined normal level to the alarm signal sending corresponding assembly, alarm signal is fed back to operating personnel by display screen 2.
In the present embodiment, described speed probe 6 is made up of photoelectric encoder, and described photoelectric encoder is connected with data processing equipment through data collector 8, and described data collector 8 is connected with vibration transducer.Preferably, described photoelectric encoder is located on high speed shaft 14, to monitor the rotating speed of high speed shaft 14, and according to the rotating speed of high speed shaft 14 with certain frequency transponder pulse signal to data collector 8, after data collector 8 receives pulse signal, by the Real-time Monitoring Data synchronized upload of each vibration transducer 5 to data processing equipment 10.Thus, achieve the synchronous acquisition of the vibration of each assembly and rotary speed information, improve the accuracy that device judges; Meanwhile, due to wind speed, wind direction difference, cause high speed shaft rotating speed constantly to change, the pulse signal frequency that photoelectric encoder is exported constantly changes, and also just changes the frequency of vibration transducer to assembly vibration signals collecting, reaches the object of frequency conversion.
Embodiment one
As shown in Fig. 6 to Figure 12, in the present embodiment, described vibration transducer 5 comprises, and the probe 17 can launch detection grating, receiving detection grating and the detection optical grating reflection launched by probe 17 return the reflector 18 at probe 17 place.
In the present embodiment, described reflector 18 is made up of the light-reflecting portion of the different reflecting rate of multistage.
As shown in Figure 10, one end of reflector 18 is to the relative other end, and each light-reflecting portion raises gradually according to reflecting rate or arranges successively with reducing.As shown in Figure 10, meeting on detection grating face of reflector 18 is placed with multiple light-reflecting portion A to M, and the reflecting rate of each light-reflecting portion successively decreases to M gradually successively from A.
All right, as shown in Figure 9, the center of reflector 18 is to two ends, and each light-reflecting portion raises gradually according to reflecting rate successively or arranges with reducing.As shown in Figure 9, the meeting of reflector 18 is detected and grating face is placed with the light-reflecting portion A to the light-reflecting portion G of end of multiple light-reflecting portion by center, and the reflecting rate of each light-reflecting portion successively decreases to G gradually successively from A.The symmetrical setting of light-reflecting portion A to G of both sides.
As shown in figure 12, described probe 17 is connected with data line; Described probe 17 comprises shell, and the axis along shell is from up to down provided with the through hole 171 running through cover top portion successively, launches the lamp source 172 detecting grating and the chip 173 receiving detection grating.Be provided with the magnet mount pad be made up of flat thin magnet 174 bottom described probe 17, the bearing 16 of probe 17 with high speed shaft 14 or slow-speed shaft 21 is removably fixedly connected with.Preferably, described lamp source 172 sends that extend along probe axis, that launch to through hole 171 place, unidirectional white detection grating; Detect grating vertical sand shooting to reflector, the reflection grating changing color is reflected into by the light-reflecting portion of different reflecting rate, reflection grating is injected in probe along through hole 171 again, and through 172 to chip 173 place, lamp source that light-transmitting materials is formed, make chip 173 receive only the detection grating reflected from reflector 18, judge the position relationship between probe and reflector with this.
As shown in figure 11, described reflector 18 is square, and square at least two adjacent side edge are respectively equipped with magnet strip 181, are removably fixedly connected with by reflector 18 with gear box casing 19; Preferably, the surrounding of square reflector 18 is equipped with magnet strip 181, reflector 18 can be extended along bearing 16 radial direction and be fixed on gear box casing 19 or be fixed on gear box casing 19 along the extension of bearing 16 tangential direction.
As shown in Figure 7, when reflector 18 is fixed on gear box casing 19 along the extension of bearing 16 radial direction, the axis of probe 17 extends along bearing 16 tangential direction; The probe axis of 17 and the concordant setting of center light-reflecting portion of corresponding reflector 18; Between described probe 17 and reflector 18, L, described L are not less than the half of probe 17 installation bearing 16 external diameters in a distance.
As shown in Figure 8, when reflector 18 is fixed on gear box casing 19 along the extension of bearing 16 tangential direction, the axis of probe 17 extends along bearing 16 radial direction.Preferably, bearing 16 radially extends a connecting link 20, the unsettled setting in one end of connecting link, free end be provided with axis and the perpendicular probe 17. of connecting link thus, reflector 18 is arranged with the axis perpendicular of probe 17, and the detection grating that probe 17 is launched is reflected back probe 17 place by reflector 18.
In the present embodiment, the bearing periphery of high speed shaft 14 and/or slow-speed shaft 21 is respectively equipped with the probe 17 axis perpendicular setting of two vibration transducers, 5, two vibration transducers 5.
In the present embodiment, be provided with the high gear be meshed with high speed shaft 14 in gear case 23, the low speed gear be meshed with slow-speed shaft 21, high gear can directly be meshed with low speed gear; Also can be meshed with low speed gear by high gear through at least one transmission gear and to be connected, described transmission gear is installed on intermediate shaft 22, and intermediate shaft 22 is installed on gear box casing 19 through bearing 16.The bearing of intermediate shaft is respectively equipped with above-mentioned vibration transducer 5.
Embodiment two
As shown in Figure 3 and Figure 4, in the present embodiment, pick-up unit body is arranged with body exterior through data line, at least one temperature sensor 7 is connected, and the data processing equipment 10 that described temperature sensor 7 is arranged with housing 1 inside is connected.Preferably, described temperature sensor 7 is connected with data processing equipment 10 through data collector 8, to realize the synchronous acquisition of temperature signal and vibration signal, tach signal.
Embodiment three
In the present embodiment, a kind of Portable wind motor detection apparatus is connected to few two vibration transducers 5, wherein at least comprises the first vibration transducer 11 and the second vibration transducer 12; The radial direction of same detected assembly is all located at by the first described vibration transducer 11 and the second vibration transducer 12, the first described vibration transducer 11 and the perpendicular setting of the second vibration transducer 12.Preferably, the first described vibrating sensing 11 device is arranged in the horizontal direction, and the second vibration transducer 12 is vertically arranged.Thus, realize the monitoring that the both direction to assembly is vibrated, to improve the degree of accuracy of vibration monitoring data.
As shown in Figure 5, in the present embodiment, vibration transducer 5 set on the high speed shaft 14 of described wind turbine comprises the first vibration transducer 11 detecting the vibration of high speed shaft 14 horizontal direction, the second vibration transducer 12 detecting the vibration of high speed shaft 14 vertical direction.The first described vibration transducer 11 and the second vibration transducer 12 respectively with the axis perpendicular of high speed shaft 14.The first described vibration transducer 11 and the vertical setting mutually of the second vibration transducer 12.The first described vibration transducer 11 and the second vibration transducer 12 are respectively equipped with magnet mount pad 15, on the first vibration transducer 11 and the dismountable outer wall being arranged on high speed shaft 14 of the second vibration transducer 12.
As shown in Figure 5, in the present embodiment, vibration transducer 5 set on the high speed shaft 14 of described wind turbine also comprises the 3rd vibration transducer 13 detecting the vibration of high speed shaft 14 axis direction.The 3rd described vibration transducer 13 is arranged along the axis direction of high speed shaft 14.
It should be noted that; above-mentioned specific embodiment is only exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion drops in protection domain of the present utility model.
It will be understood by those skilled in the art that specific descriptions are above to explain the purpose of this utility model, not for limiting the utility model.Protection domain of the present utility model is by claim and equivalents thereof.
Claims (10)
1. a Portable wind motor detection apparatus, comprising: pick-up unit body; Pick-up unit body is arranged with body exterior respectively through data line, at least one vibration transducer is arranged with body exterior, at least one speed probe is connected; It is characterized in that: described vibration transducer comprises, detection grating can be launched, receive the probe detecting grating and the reflector detection optical grating reflection that probe is launched being gone back to probe place.
2. a kind of Portable wind motor detection apparatus according to claim 1, is characterized in that: described reflector is made up of the light-reflecting portion of the different reflecting rate of multistage.
3. a kind of Portable wind motor detection apparatus according to claim 2, is characterized in that: one end of reflector is to the relative other end, and each light-reflecting portion raises gradually according to reflecting rate or arranges successively with reducing.
4. a kind of Portable wind motor detection apparatus according to claim 2, is characterized in that: the center of reflector is to two ends, and each light-reflecting portion raises gradually according to reflecting rate successively or arranges with reducing.
5. a kind of Portable wind motor detection apparatus according to claim 1, is characterized in that: described probe is connected with data line; Described probe comprises housing, and the axis along housing is from up to down provided with the through hole running through case top successively, launches the lamp source detecting grating and the chip receiving detection grating.
6., according to the arbitrary described a kind of Portable wind motor detection apparatus of claim 1 to 5, it is characterized in that: wind turbine comprises the driving-chain be at least made up of high speed shaft, gear case, slow-speed shaft, generator; High speed shaft and slow-speed shaft are installed with on gear case through the bearing of correspondence respectively.
7. a kind of Portable wind motor detection apparatus according to claim 6, is characterized in that: be provided with the base be made up of flat thin magnet bottom described probe, is removably fixedly connected with by probe with the bearing of high speed shaft or slow-speed shaft.
8. a kind of Portable wind motor detection apparatus according to claim 7, is characterized in that: described reflector is square, and square two adjacent side edge are respectively equipped with magnet strip, are removably fixedly connected with by reflector with the housing of gear case; The axis perpendicular of described reflector and probe is arranged, and the detection grating that probe is launched is reflected back probe place by reflector.
9. a kind of Portable wind motor detection apparatus according to claim 8, is characterized in that: axis and the corresponding concordant setting of reflector center light-reflecting portion of probe; Between described probe and reflector in a distance L, described L be not less than probe the half of bearing outside diameter is installed.
10. a kind of Portable wind motor detection apparatus according to claim 9, is characterized in that: the bearing periphery of high speed shaft and/or slow-speed shaft is respectively equipped with two vibration transducers, the perpendicular setting of probe axis of two vibration transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539178.9U CN204128674U (en) | 2014-03-26 | 2014-09-18 | A kind of Portable wind motor detection apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139020 | 2014-03-26 | ||
| CN201420139020.2 | 2014-03-26 | ||
| CN201420539178.9U CN204128674U (en) | 2014-03-26 | 2014-09-18 | A kind of Portable wind motor detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128674U true CN204128674U (en) | 2015-01-28 |
Family
ID=52385021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420539178.9U Expired - Fee Related CN204128674U (en) | 2014-03-26 | 2014-09-18 | A kind of Portable wind motor detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204128674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705283A (en) * | 2022-04-11 | 2022-07-05 | 河北工业大学 | Vibration measuring system for small motor |
-
2014
- 2014-09-18 CN CN201420539178.9U patent/CN204128674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705283A (en) * | 2022-04-11 | 2022-07-05 | 河北工业大学 | Vibration measuring system for small motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267873A (en) | Fault detecting system and method for propeller type anemometry sensor | |
| CN111594396A (en) | Wind turbine generator system state monitoring system | |
| CN204128674U (en) | A kind of Portable wind motor detection apparatus | |
| CN109281805B (en) | Multi-parameter measurement intelligent inspection system | |
| CN208687228U (en) | A kind of detecting robot of pipe of fixed work | |
| CN204041345U (en) | A kind of wind turbine assembly supervisory device | |
| CN105508146B (en) | Yaw testing system of wind generating set | |
| CN202453182U (en) | Fault diagnosis device of gearbox of wind generation set | |
| CN108240305A (en) | Generator centering monitors system and method | |
| CN103558413A (en) | Wind speed detection probe | |
| CN201654055U (en) | Photoelectric rotation speed sensor | |
| CN204849853U (en) | Novel marine fan foundation structure | |
| CN203232046U (en) | Wind turbine impeller rotation speed measuring and monitoring device | |
| CN103163325B (en) | A kind of method that wind-force detects, wind-force detector and aerogenerator | |
| CN204152730U (en) | A kind of Wind turbines condition monitoring system | |
| CN104989602B (en) | A kind of wind-driven generator status remote monitoring device | |
| CN208026237U (en) | A kind of generator of wind generating set displacement monitor | |
| CN103471478B (en) | Device and method for detecting assembly precision of wind turbine generator system air guide sleeve and hub | |
| CN203686066U (en) | System for monitoring unbalanced loading of planet gear of wind generating set | |
| CN208702622U (en) | A kind of measuring multiple parameters intelligent inspection system | |
| CN221032949U (en) | Transmission assembly and wind driven generator | |
| CN114412724B (en) | Laser radar ranging system for monitoring running state of wind power blade | |
| CN221683105U (en) | External wind speed monitoring mechanism for wind power generation | |
| CN217111344U (en) | Underground pipe network leak protection monitoring devices | |
| CN212225454U (en) | Wind turbine generator system state monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20180918 |