CN217518791U - High-strength bolt fracture monitoring device for pitch system of wind driven generator - Google Patents
High-strength bolt fracture monitoring device for pitch system of wind driven generator Download PDFInfo
- Publication number
- CN217518791U CN217518791U CN202220238455.7U CN202220238455U CN217518791U CN 217518791 U CN217518791 U CN 217518791U CN 202220238455 U CN202220238455 U CN 202220238455U CN 217518791 U CN217518791 U CN 217518791U
- Authority
- CN
- China
- Prior art keywords
- gasket
- bolt
- strength bolt
- sensitive resistor
- fan blade
- 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
High-strength bolt fracture monitoring device of wind driven generator pitch system. The flange and the large part used by the existing wind generating set are connected, high-strength bolts are basically adopted, and one very important characteristic of the high-strength bolts is that the high-strength bolts are limited to be used once and are generally used for permanent part connection and forbid repeated use, and if one bolt falls off and breaks, a detection loop is disconnected, and a fault protective shutdown is triggered. The utility model discloses the constitution includes: the generator pitch system comprises a fan blade, a bearing, a gasket and a force sensitive resistor, wherein the fan blade is connected with the bearing through a group of high-strength bolts, each high-strength bolt is provided with the gasket, a gasket clamping groove is processed in each gasket, the force sensitive resistor is installed in each gasket clamping groove, one end of a series node is connected with a high level + 24V, the other end of the series node is connected into an open standby contact of a control system, and the force sensitive resistor is connected into a PLC (programmable logic controller) after being connected in series through a force sensitive resistor wiring. The utility model is used for detect generator change oar system bolt intensity.
Description
Technical Field
The utility model particularly relates to a aerogenerator becomes oar system high strength bolt fracture monitoring devices.
Background
The flange and the large part used by the existing wind generating set are connected, and high-strength bolts are basically adopted, and one very important characteristic of the high-strength bolts is that the high-strength bolts are limited to be used once and are generally used for permanent part connection and forbidden to be used repeatedly. The high-strength bolt detection generally comprises a special instrument for detecting parameters such as pretension force, torque coefficient, standard deviation and the like of the high-strength bolt, the detection bolt is generally used for detection before installation or after mass damage, the detection of the damaged bolt is difficult to achieve in actual operation, all bolts of the blade are connected in series by using an existing control system in operation, and if one bolt falls off or breaks, a detection loop is disconnected, and a fault protective shutdown is triggered.
Disclosure of Invention
The utility model aims at providing an aerogenerator becomes oar system high strength bolt fracture monitoring devices.
The above purpose is realized by the following technical scheme:
aerogenerator becomes oar system high strength bolt fracture monitoring devices, its constitution includes: the generator pitch system comprises a fan blade, a bearing, a gasket and a force-sensitive resistor, and is characterized in that: the fan blade with connect through a set of high strength bolt between the bearing, all install on every high strength bolt the gasket, processing has the gasket draw-in groove on the gasket, the installation has the force sensing resistance in the gasket draw-in groove, and high level + 24V is connected to series connection node one end, and the other end inserts in the open reserve contact of control system, the force sensing resistance inserts the PLC controller through the connection of force sensing resistance wiring after establishing ties.
Has the advantages that:
the utility model discloses put into the force-sensitive resistance under the gasket of high strength bolt, resistance reduces along with the pressure increase, two lead wire installation quick-operation joint of force-sensitive resistance are connected with the force-sensitive resistance wiring, the force-sensitive resistance of all bolts of establishing ties, high level + 24V is connected to series connection node one end, in the open reserve contact of other end access control system, connect the PLC controller, bolt check out test set is connected with the controller, when taking place the broken string, oar leaf controller passes the master control through becoming the oar communication and returning, the master control is shut down according to command control fan, wheel hub internal plant has been protected, remind fortune dimension personnel to step on the tower and disappear the shortcoming.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a gasket reconstruction structure;
FIG. 3 is a bolt breakage detection arrangement;
wherein: 1. high strength bolt, 2, blade outer wall, 3, blade inner wall, 4, gasket, 5, force sensing resistor, 6, force sensing resistor wiring, 7, PLC controller, 8, gasket draw-in groove.
Detailed Description
Example 1:
the utility model provides a aerogenerator becomes oar system high strength bolt fracture monitoring devices which constitutes and includes: the monitoring device is used for detecting the strength of a bolt of a generator variable pitch system, the generator variable pitch system comprises a fan blade and a bearing, the fan blade is connected with the bearing through a group of high-strength bolts 1, each high-strength bolt is provided with a gasket, a gasket clamping groove 8 is processed on each gasket, a force sensitive resistor 5 is arranged in each gasket clamping groove, and the force sensitive resistors are connected in series through a force sensitive resistor connecting wire 6 and then connected into a PLC (programmable logic controller) 7;
working principle and modification steps:
(1) before a fan is put into operation and installed, a force-sensitive resistor (the resistance is reduced along with the increase of pressure) is placed under a gasket of a high-strength bolt, a quick connector is installed on two leads of the force-sensitive resistor, and the wiring position of the force-sensitive resistor is convenient to wire;
(2) a force-sensitive resistor is added below the gasket, and in order to consider the levelness which does not influence the screwing of the bolt, one end of the round gasket is made into a clamping groove which can be placed into the force-sensitive resistor and has a proper size;
(3) as shown in fig. 1, a blade outer wall 2 and a blade inner wall 3 are schematic diagrams of a fan blade, and a trunking is arranged beside a flange between two bolts at the root of the fan blade and is used for installing a force-sensitive resistor for connecting two force-sensitive resistors through wiring;
(4) at present, most of fan blade control systems adopt independent variable pitch control systems, controllers are provided with spare contacts, a group of spare contacts are opened, a feedback electric shock is set to be in a high-level normal state, a low-level trigger fault is triggered, and the contact fault is named;
(5) the force-sensitive resistors of all the bolts are connected in series, one end of a series node is connected with a high level + 24V, and the other end of the series node is connected into an open standby contact of a control system and is connected with a PLC (programmable logic controller);
the technically improved bolt detection equipment is connected with the controller, when the disconnection occurs, the blade controller transmits back the master control through the pitch control communication, the master control controls the fan to stop according to the command, the equipment in the hub is protected, and operation and maintenance personnel are reminded to climb the tower to eliminate the defect. The method can be used for detecting the bolts of the fan blade and the high-strength bolts of other flanges, but the fan blade belongs to rotating equipment, so that the fan blade is easy to damage due to various external and internal conditions, and the economic loss caused by the damage is large.
Claims (1)
1. The utility model provides a aerogenerator becomes oar system high strength bolt fracture monitoring devices which constitutes and includes: the generator pitch system comprises a fan blade, a bearing, a gasket and a force-sensitive resistor, and is characterized in that: fan blade with connect through a set of high strength bolt between the bearing, all install on every high strength bolt the gasket, processing has the gasket draw-in groove on the gasket, the force sensing resistance is equipped with to the gasket draw-in groove liam, high level + 24V is connected to series connection node one end, during the open reserve contact of other end access control system, force sensing resistance inserts the PLC controller through connecting wire series back access PLC controller of force sensing resistance, the PLC controller be connected with bolt check out test set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238455.7U CN217518791U (en) | 2022-01-28 | 2022-01-28 | High-strength bolt fracture monitoring device for pitch system of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238455.7U CN217518791U (en) | 2022-01-28 | 2022-01-28 | High-strength bolt fracture monitoring device for pitch system of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217518791U true CN217518791U (en) | 2022-09-30 |
Family
ID=83367942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220238455.7U Active CN217518791U (en) | 2022-01-28 | 2022-01-28 | High-strength bolt fracture monitoring device for pitch system of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217518791U (en) |
-
2022
- 2022-01-28 CN CN202220238455.7U patent/CN217518791U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105569931B (en) | A kind of driving chain of wind driven generator method for diagnosing faults | |
| CN204851950U (en) | System for reduce aerogenerator bolt periodical maintenance number | |
| JP2014530988A (en) | Method for controlling a wind turbine generator | |
| CN206192641U (en) | Be used for monitoring cracked device of bolt | |
| CN102466531A (en) | Bolt fault monitoring system and monitoring method thereof | |
| CN108757340A (en) | A kind of high speed shaft of aerogenerator real-time status of the operation monitoring method and system | |
| CN110552832A (en) | Fault diagnosis and health state assessment method for hydraulic turbine unit | |
| CN105240214A (en) | Safety circuit for overspeed protection of wind turbine generating set | |
| CN111637024A (en) | Tower monitoring devices is prevented sweeping by wind generating set's blade | |
| CN217518791U (en) | High-strength bolt fracture monitoring device for pitch system of wind driven generator | |
| CN205047372U (en) | Recognition device of wind -powered electricity generation thick liquid leaf surface trouble | |
| CN104265655A (en) | Automatic control system for water pump | |
| CN208061002U (en) | A kind of boiler room equipment energy consumption monitoring system | |
| CN213870132U (en) | Crack monitoring system for rotating component and wind generating set | |
| CN219911039U (en) | Online monitoring device for variable-pitch bearing of wind turbine generator | |
| CN111896868B (en) | Motor current centralized monitoring and fault alarming system | |
| CN109375575A (en) | A kind of band-type brake control method and system | |
| CN210418182U (en) | Automatic monitoring and repairing system for blockage faults of bulk material conveying equipment | |
| CN108644100A (en) | Judgement system, method and the steam feed pump of steam feed pump run signal | |
| CN116988941A (en) | Online monitoring device and method for variable-pitch bearing of wind turbine generator | |
| CN211452652U (en) | 10KV middling pressure power cable temperature electric power operation maintenance detection device | |
| CN109695546A (en) | A kind of universal fan monitoring method | |
| CN211039128U (en) | Intelligent inspection system for fan of control cabinet of wind turbine generator | |
| CN210691557U (en) | Device for early warning of bolt work abnormity | |
| CN118030403A (en) | High-strength bolt fracture monitoring method for wind driven generator pitch system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |