CN116624329A - Wind generating set blade locking device and wind generating set - Google Patents

Wind generating set blade locking device and wind generating set Download PDF

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Publication number
CN116624329A
CN116624329A CN202310715821.2A CN202310715821A CN116624329A CN 116624329 A CN116624329 A CN 116624329A CN 202310715821 A CN202310715821 A CN 202310715821A CN 116624329 A CN116624329 A CN 116624329A
Authority
CN
China
Prior art keywords
locking
mounting
blade
hub
generating set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310715821.2A
Other languages
Chinese (zh)
Inventor
刘希瑞
侯海宝
张肖
樊凯祥
白扬
吴斌
石永钊
周晓磊
武志刚
李博安
邱雷
刘涛涛
马振军
石志亨
李健昕
郭成龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Three Gorges Renewables Group Co Ltd
Original Assignee
China Three Gorges Renewables Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Three Gorges Renewables Group Co Ltd filed Critical China Three Gorges Renewables Group Co Ltd
Priority to CN202310715821.2A priority Critical patent/CN116624329A/en
Publication of CN116624329A publication Critical patent/CN116624329A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/32—Wind speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/602—Control system actuates through electrical actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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

Abstract

The application provides a wind generating set blade locking device and a wind generating set, relates to the technical field of wind power generation, and aims to solve the problems that a blade locking mode is complex and labor-consuming in the related art. The wind generating set blade locking device comprises a locking controller, a driving locking assembly and a mounting assembly, wherein the hub is configured to trigger when the actual wind speed exceeds the preset wind speed, and sends a trigger signal to the locking controller, and the locking controller is configured to receive the trigger signal so as to enable the driving locking assembly to move towards the direction of the blade; and when the locking end of the driving locking assembly moves to the inner gear ring of the variable-pitch bearing on the hub, the blades are locked in the hub, so that the locking state of the blades and the hub is formed. According to the application, the automatic locking of the blades can be realized through remote control, so that the workload of manual tower climbing operation is reduced; meanwhile, the maintenance operation time is shortened, the generating time of the unit is prolonged, the generating capacity is improved, and the generating efficiency is further improved.

Description

Wind generating set blade locking device and wind generating set
Technical Field
The application relates to the technical field of wind power generation, in particular to a wind generating set blade locking device and a wind generating set.
Background
The wind generating set is power equipment for converting wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally, alternating current is output. In the working process of the wind generating set, the wind generating set is often subjected to attack by high wind, so that the wind generating set has to have high wind resistance, and when the high wind comes, the blades of the wind generating set are in a reliable forward-sizing state, so that the load of the wind generating set is reduced to the maximum extent, and the safety of the wind generating set is ensured.
In the related art, a blade locking device is arranged on a wind generating set, and when extreme conditions such as typhoons occur, the blade locking device is used for braking blades in the wind generating set. In actual locking operation, an operator needs to log on the wind generating set one by one before strong wind comes, enter the hub, and lock the blades at the feathering position through manual operation, so that the rotation of the blades is blocked, and the braking of the blades is realized.
However, the blade locking method is complicated, labor-consuming and labor-intensive, and the workload is high.
Disclosure of Invention
The embodiment of the application provides a wind generating set blade locking device and a wind generating set, which can realize automatic locking of blades through remote control and reduce the workload of manual tower climbing operation; meanwhile, the maintenance operation time is shortened, the generating time of the unit is prolonged, the generating capacity is increased, the generating efficiency is further improved, and the working experience of a user is improved.
In order to achieve the above object, the present application provides the following technical solutions:
in a first aspect, an embodiment of the present application provides a wind turbine blade locking device for locking a blade in a hub of a wind turbine, where the wind turbine blade locking device includes a locking controller, a driving locking assembly, and a mounting assembly, and the wind turbine blade locking device is connected to the hub through the mounting assembly; the installation component is provided with an installation area, the driving locking component is arranged in the installation area and is connected with the installation component, and the driving locking component is provided with a locking end which is used for installing the blade; the locking controller is respectively and electrically connected with the driving locking assembly and the hub, the hub is configured to be triggered when the actual wind speed exceeds the preset wind speed, and the locking controller is configured to receive a trigger signal and drive the driving locking assembly to move towards the direction of the blade; and when the locking end of the driven locking assembly moves to the inner gear ring of the variable-pitch bearing on the hub, the blades are locked in the hub, so that the locking state of the blades and the hub is formed.
In one possible implementation, the drive lock assembly includes a drive member and a lock member; the first end of the driving piece is connected with at least part of the structure of the installation assembly, the second end of the driving piece is connected with the first end of the locking piece, the second end of the locking piece penetrates through and is connected to at least part of the structure of the installation assembly, and the second end of the locking piece is the locking end of the driving locking assembly; the locking controller is electrically connected with the driving piece, and is configured to receive the trigger signal and drive the driving piece to move towards the direction of the blade, and the driving piece drives the locking piece to move towards the direction of the blade.
In one possible implementation, the mounting assembly includes a mounting base and a mounting bracket that together enclose the mounting area; one end of the mounting bracket is connected with the mounting base, the other end of the mounting bracket is connected with the hub, and the blade locking device of the wind generating set is connected with the hub through the mounting bracket; the first end of the driving piece is connected with the mounting base, and the second end of the locking piece is penetrated and connected to the mounting bracket.
In one possible implementation, the mounting bracket includes a bracket body, a first mounting portion, and a second mounting portion; the first installation part is arranged on one side of the bracket body, which is away from the locking piece, the first installation part is connected with the installation base, the second installation part is arranged on one side of the bracket body, which is close to the locking piece, and the second installation part is connected with the hub; the support body is provided with a penetrating hole, the second end of the locking piece penetrates through the penetrating hole and is positioned outside the installation area, and the blade is installed on the locking end positioned outside the installation area.
In one possible implementation, the mounting base includes a mounting bar and a mounting plate; the mounting rod is arranged on one side of the mounting plate, which is away from the driving piece, and the first mounting part is connected with the mounting plate; and the axis of the mounting rod is coincident with the axis of the driving locking assembly.
In one possible implementation, a distance is provided between the hole edge of the side of the penetrating hole facing away from the mounting base and the end of the bracket body facing away from the mounting base; the horizontal distance of the spacing ranges from 150mm to 160mm.
In one possible implementation, the driving member comprises an electric push rod.
In a second aspect, embodiments of the present application provide a wind turbine, comprising a blade, a hub, and a wind turbine blade locking device; the blade is arranged on a locking piece of the blade locking device of the wind generating set, and the hub is connected with a mounting bracket of the blade locking device of the wind generating set; the hub is provided with a mounting hole, a mounting bracket of the wind turbine generator system blade locking device is assembled in the mounting hole, and the end face of the mounting bracket in the mounting hole is parallel to the hole edge of the mounting hole.
In one possible implementation manner, the wind turbine generator system further comprises a main controller, wherein a limit switch is arranged in the hub, the main controller is respectively electrically connected with the wind turbine generator system blade locking device and the limit switch, the main controller is used for triggering the limit switch when the actual wind speed exceeds the preset wind speed, the limit switch generates a trigger signal, and the locking controller of the wind turbine generator system blade locking device receives the trigger signal.
In one possible implementation manner, the hub comprises a hub body and a pitch bearing inner gear ring arranged on the hub body, and when the locking end of the blade locking device of the wind generating set moves into the pitch bearing inner gear ring, the blade is locked in the hub body to form a locking state of the blade and the hub body.
According to the blade locking device of the wind generating set and the wind generating set, provided by the embodiment of the application, the control and observation of the driving locking assembly can be realized through the locking controller by comprising the locking controller, the driving locking assembly and the mounting assembly, and the control directly acts on the electric push rod; the automatic locking of the blades can be directly realized by driving the locking component, so that the workload of manual tower climbing operation is reduced; meanwhile, the maintenance operation time is shortened, the generating time of the unit is prolonged, the generating capacity is increased, and the generating efficiency is further improved; in addition, the wind generating set blade locking device is directly arranged on the hub, the structure of the hub cannot be damaged, the overall layout is optimized, the structure is simple, and the operation is convenient.
The construction of the present application and other application objects and advantages thereof will be more readily understood from the description of the preferred embodiment taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a wind turbine generator system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a wind generating set according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a hub of a wind turbine generator system according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a blade locking device for a wind turbine generator system according to an embodiment of the present application;
FIG. 5 is a schematic view of a mounting base and a driving locking assembly of a blade locking device of a wind turbine generator system according to an embodiment of the present application;
fig. 6 is a schematic structural view of an installation base of a blade locking device of a wind turbine generator system according to an embodiment of the present application.
Reference numerals illustrate:
100-a blade locking device of a wind generating set;
110-actuating a locking assembly; 111-driving member; 112-locking member;
120-mounting an assembly; 121-an installation area; 122-mounting a base;
1221-mounting a rod; 1222-a mounting plate; 1223-connecting rods;
123-mounting brackets; 1231-stent body; 12311-a through hole;
1232-a first mount; 1233-a second mount; 12331-set screw;
200-wind generating set; 210-leaf; 220-hub;
221-a hub body; 2211—a mounting hole; 2212-fitting hole;
222-pitch bearing ring gear.
Detailed Description
The wind generating set is power equipment for converting wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally, alternating current is output. In the working process of the wind generating set, the wind generating set is often subjected to attack by high wind, so that the wind generating set has to have high wind resistance, and when the high wind comes, the blades of the wind generating set are in a reliable forward-sizing state, so that the load of the wind generating set is reduced to the maximum extent, and the safety of the wind generating set is ensured.
Wherein, the blade of the wind generating set is in a reliable feathering state: when the wind power is overlarge, the control system can send out a command, the blades stop rotating, and the variable-pitch motor can forward the blades, so that when the blades are in a forward-pitch state, the resistance of the blades to the wind is minimum, and the blades are protected to the greatest extent.
In the related art, a blade locking device is arranged on a wind generating set, and when extreme conditions such as typhoons occur, the blade locking device is used for braking blades in the wind generating set. In actual locking operation, the blade locking device is usually a manual blade locking device, when the manual blade locking device is used, an operator needs to log on the wind generating set one by one before strong wind comes, the wind generating set enters the hub, and the blades are locked at the forward-sizing position through manual operation, so that the rotation of the blades is blocked, and the braking of the blades is realized.
However, the blade locking method in the related art is labor-intensive and labor-intensive, and the manual tower climbing operation is heavy; meanwhile, the maintenance operation time is longer, so that the power generation time of the unit can be shortened, and the power generation capacity of the unit is lower.
Based on the technical problems, the embodiment of the application provides a blade locking device of a wind generating set and the wind generating set, which can realize the control and observation of a driving locking assembly through the locking controller by comprising the locking controller, the driving locking assembly and a mounting assembly and directly act on the control of an electric push rod; the automatic locking of the blades can be directly realized by driving the locking component, so that the workload of manual tower climbing operation is reduced; meanwhile, the maintenance operation time is shortened, the generating time of the unit is prolonged, the generating capacity is increased, and the generating efficiency is further improved; in addition, the wind generating set blade locking device is directly arranged on the hub, the structure of the hub cannot be damaged, the overall layout is optimized, the structure is simple, and the operation is convenient.
In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Fig. 1 is a schematic structural view of a wind turbine generator system according to an embodiment of the present application, fig. 2 is a schematic structural view of a wind turbine generator system according to an embodiment of the present application, and fig. 3 is a schematic structural view of a hub of a wind turbine generator system according to an embodiment of the present application.
The embodiment of the application provides a wind generating set 200, wherein the wind generating set 200 is a system for converting kinetic energy of wind into rotary mechanical energy so as to drive a generator to generate electricity. Wind turbine 200 is generally comprised of blades 210 (also referred to as rotor blades), a hub 220, a generator, a control system, a tower, a pitch system, a wind speed sensor, and the like.
The blades 210 are one of the most important parts of the wind park 200, responsible for converting wind energy into rotational kinetic energy. In general, the blades 210 are made of high-strength glass fibers and carbon fibers, and are capable of withstanding the impact of strong wind and storm, and in general, the wind turbine 200 includes three blades 210 and a hub 220, the blades 210 being mounted on the hub 220, and the hub 220 being the basis for mounting the blades 210.
Hub 220 is an important component of wind turbine 200, hub 220 is a component connecting blades 210 and the main shaft, and is operative to withstand the thrust torque and gyroscopic forces exerted by the wind on blades 210, and then to transmit the forces and moments of the rotor to the mechanism. As an important stress component in the wind turbine, the hub 220 must have sufficient strength and rigidity and good shock absorbing performance to reduce the load impact of the blade 210 on the main shaft.
Generators are devices that convert the rotational kinetic energy of a wind wheel into electrical energy, typically made of permanent magnets or electromagnets. The variation of the rotation speed of the generator affects the magnitude and stability of the output voltage. The control system includes electronics, sensors, a lock controller, software, etc. for monitoring and controlling the operation of the wind turbine 200. The control system can adjust the angle of the rotor blades 210 and the rotational speed of the generator in real time to ensure stable operation of the wind turbine 200.
The tower is a support structure for the wind turbine 200 and is typically constructed of steel pipe or concrete. The tower height has a direct effect on the output power of the wind park 200, as the wind speed increases with increasing height. The pitch system is a device for controlling the angle of the rotor blades, and the angle of the blades 210 can be adjusted in real time according to the change of the wind speed to maximize the use of wind energy. The wind speed sensor is used to measure wind speed and direction so that the control system can adjust the angle of the blades 210 and the rotational speed of the generator in time.
In the embodiment of the present application, referring to fig. 1 to 3, a wind turbine 200 is mainly described as an example including a blade 210, a hub 220, a main controller, and a wind turbine blade locking device 100.
The storage temperature, the relative humidity and the atmospheric pressure of the wind turbine blade locking device 100 in the air are not particularly required or limited, and in addition, the environmental temperature of the wind turbine blade locking device 100 in a high wind environment may be between 40 ℃ below zero and 60 ℃ above zero.
Referring to fig. 3, the hub 220 includes a hub body 221 and a pitch bearing ring gear 222 disposed on the hub body 221, a mounting hole 2211 is formed in the hub 220, a limit switch is disposed in the hub 220, and a main controller is electrically connected with the wind turbine generator system blade locking device 100 and the limit switch respectively. The main controller is used for triggering the limit switch when the actual wind speed exceeds the preset wind speed, the limit switch generates a trigger signal, and the locking controller of the blade locking device of the wind generating set receives the trigger signal.
The limit switch is also called a travel limit switch and is mainly used for controlling the travel of mechanical equipment and carrying out limit protection. In practical application, the travel limit switch is arranged at a preset position, and when a module of a moving part of the production machine touches the travel, the contact of the travel limit switch acts, so that the switching between circuits can be effectively realized.
During assembly, the hub body 221 is connected with the mounting bracket 123 of the wind generating set blade locking device 100, the blade 210 is mounted on the locking piece 112 of the wind generating set blade locking device 100, when the actual wind speed exceeds the preset wind speed, the main controller triggers the limit switch in the hub 220, the limit switch generates a trigger signal, the trigger signal can be the blade 210 locking signal, the locking controller receives the trigger signal, and then starts to enable the driving locking device to move towards the blade 210, meanwhile, the driving locking device drives the blade 210 to move towards the blade 210, the mounting bracket 123 is mounted in the mounting hole 2211, the locking end moves into the pitch bearing inner gear ring 222, the blade 210 is locked in the hub body 221, and the locking state of the blade 210 and the hub body 221 is formed.
Referring to fig. 1 to 3, when the hub body 221 and the mounting bracket 123 are assembled, a plurality of assembly holes 2212 may be formed in the hub body 221, and a plurality of assembly screws 12331 may be formed in the mounting bracket 123, or alternatively, the plurality of assembly screws 12331 may be formed in the plurality of assembly holes 2212 in a one-to-one correspondence manner, so that the hub body 221 and the mounting bracket 123 are connected, and the assembly stability of the hub body 221 and the mounting bracket 123 may be improved.
It should be noted that, referring to fig. 1 and 2, the mounting bracket 123 is fitted into the mounting hole 2211, and the end surface of the mounting bracket 123 located in the mounting hole 2211 and the hole edge of the mounting hole 2211 need to be in a parallel state after the fitting. The setting like this can improve the assembly stability of installing support 123 and wheel hub body 221 to the adaptation degree of installing support 123 and wheel hub body 221 is better, thereby can avoid leading to installing support 123 and wheel hub body 221 assembly unstable problem when the high inconsistency after the assembly, improves the locking effect of wind turbine generator system blade locking device 100 to blade 210 to the maximum extent.
Fig. 4 is a schematic structural view of a blade locking device of a wind turbine generator system according to an embodiment of the present application, fig. 5 is a schematic structural view of a mounting base and a driving locking assembly of a blade locking device of a wind turbine generator system according to an embodiment of the present application, and fig. 6 is a schematic structural view of a mounting base of a blade locking device of a wind turbine generator system according to an embodiment of the present application.
With continued reference to fig. 4-6, the wind turbine blade locking apparatus 100 may include a locking controller, a drive locking assembly 110, and a mounting assembly 120, the locking controller being electrically coupled to the drive locking assembly 110 and the hub 220, respectively.
In assembly, referring to fig. 4, the mounting assembly 120 has a mounting area 121, the driving locking assembly 110 is disposed in the mounting area 121 and connected to the mounting assembly 120, the driving locking assembly 110 has a locking end for mounting the blade 210, and the wind turbine blade locking device 100 is connected to the hub 220 through the mounting assembly 120.
It should be noted that the mounting area 121 may be a cavity, and the driving locking assembly 110 is disposed in the cavity and connected to the mounting assembly 120, so that the device is more compact and more convenient to use.
In practical application, referring to fig. 4, the mounting assembly 120 is provided with a through hole 12311, when the actual wind speed exceeds the preset wind speed, the main controller triggers the limit switch in the hub 220 and generates a trigger signal, and the locking controller receives the trigger signal and moves the driving locking assembly 110 toward the blade 210, that is, the driving locking assembly 110 can move in the direction indicated by the arrow L in fig. 4, the locking end of the driving locking assembly 110 passes through the through hole 12311 and is located outside the mounting area 121, and at this time, the blade 210 is mounted on the locking end located outside the mounting area 121.
The locking assembly 110 is driven to move towards the direction of the blade 210, and the blade 210 is driven to move together towards the direction of the blade 210, when the locking end of the locking assembly 110 is driven to move into the pitch bearing annular gear 222, the blade 210 is locked in the hub 220, and the locking state of the blade 210 and the hub 220 is formed.
It should be noted that, the specific value of the preset wind speed is not further limited, and may be specifically set according to the actual situation.
By including a locking controller, control and observation of the drive locking assembly 110 can be achieved and control of the drive locking assembly 110 is directly effected; by including the drive lock assembly 110, automatic locking of the blade 210 may be directly achieved, thereby reducing the amount of manual tower climbing operations; meanwhile, the maintenance operation time is shortened, the generating time of the unit is prolonged, the generating capacity is increased, and the generating efficiency is further improved; in addition, the wind generating set blade locking device 100 is directly installed on the hub 220, the structure of the hub 220 cannot be damaged, the overall layout is optimized, the structure is simple, and the operation is convenient.
In one possible implementation, with continued reference to fig. 4 and 5, the drive lock assembly 110 may include a drive member 111 and a lock member 112, and the mounting assembly 120 may include a mounting base 122 and a mounting bracket 123, with the mounting bracket 123 and the mounting base 122 collectively enclosing a mounting region 121.
During assembly, one end of the mounting bracket 123 is connected with the mounting base 122, the other end of the mounting bracket 123 is connected with the hub 220, and the wind turbine generator system blade locking device 100 is connected with the hub 220 through the mounting bracket 123. The first end of the driving member 111 is connected to the mounting base 122, the second end of the driving member 111 is connected to the first end of the locking member 112, the second end of the locking member 112 is threaded through and connected to the mounting bracket 123, and the second end of the locking member 112 is a locking end of the driving locking assembly 110.
The locking controller is electrically connected to the driving member 111, and the locking controller is configured to receive a trigger signal of a limit switch in the hub 220 and drive the driving member 111 to move toward the direction of the blade 210, where the driving member 111 drives the locking member 112 to move toward the direction of the blade 210, and the moving direction is shown by an arrow direction in the figure.
The driving member 111 in the embodiment of the present application may be an electric push rod, where the electric push rod is an electric driving device that converts a rotational motion of a motor into a linear reciprocating motion of the push rod, and may be used as an executing machine in various simple or complex process flows to implement remote control, centralized control, or automatic control.
The locking member 112 in the embodiment of the present application may be a locking pin.
The mounting base 122 and the mounting bracket 123 may be provided as a single piece, or the mounting base 122 and the mounting bracket 123 may be connected by screws or the like, which is not further limited in the embodiment of the present application. The material, size, model, and the like of the mounting base 122 and the mounting bracket 123 are not further limited.
In one possible implementation, with continued reference to fig. 4-6, the mounting bracket 123 may include a bracket body 1231, a first mounting portion 1232, and a second mounting portion 1233, and the mounting base 122 may include a mounting bar 1221 and a mounting plate 1222.
When assembled, the first mounting portion 1232 is disposed on one side of the support body 1231 away from the locking member 112, the first mounting portion 1232 is connected to the mounting plate 1222, the second mounting portion 1233 is disposed on one side of the support body 1231 near the locking member 112, and the second mounting portion 1233 is connected to the hub 220.
The number of the first mounting portions 1232 and the second mounting portions 1233 is not further limited, and in the embodiment of the present application, two first mounting portions 1232 and two second mounting portions 1233 are mainly described as examples. Specifically, the two first mounting portions 1232 are disposed at opposite ends of the side of the support body 1231 facing away from the locking member 112, and the two second mounting portions 1233 are disposed at opposite ends of the side of the support body 1231 facing toward the locking member 112. Thus, the stability of the assembly of the first mounting portion 1232 with the mounting plate 1222 and the second mounting portion 1233 with the hub 220 can be effectively improved when assembled.
In addition, the first mounting part 1232, the holder body 1231, and the second mounting part 1233 may be provided as one body, so that the number of assembly members between the first mounting part 1232 and the holder body 1231, and between the second mounting part 1233 and the holder body 1231 can be reduced, and the structural strength of the mounting holder 123 can be improved.
It should be noted that, in the present embodiment, the axis of the mounting rod 1221 and the axis of the driving locking assembly 110 are coincident, that is, referring to fig. 4, the axis of the mounting rod 1221 is shown in the position a in fig. 4, the axis of the driving member 111 is shown in the position B in fig. 4, and the axis of the locking member 112 is shown in the position C in fig. 4.
The axis of the mounting rod 1221, the axis of the driving member 111, and the axis of the locking member 112 are in a horizontal straight line. The arrangement is such that, in use, on the one hand, assembly between the mounting base 122 and the drive lock assembly 110 is facilitated, with a higher degree of fit, and also ease of installation and removal; on the other hand, the driving member 111 is facilitated to drive the locking member 112 to protrude in the arrow direction; in yet another aspect, by providing the mounting bar 1221, the operator is facilitated to take.
In one possible implementation, referring to fig. 4, a space is provided between an edge of the hole on a side of the penetrating hole 12311 facing away from the mounting base 122 and an end of the holder body 1231 facing away from the mounting base 122, wherein a horizontal distance D of the space may range from 150mm to 160mm.
Illustratively, the horizontal distance D of the spacing may be set to any value between 150mm, 152mm, 154mm, 156mm, 158mm, 159mm, 160mm, or 150mm-160mm, as desired.
By providing a space between the hole edge of the side of the penetrating hole 12311 away from the mounting base 122 and the end of the side of the support body 1231 away from the mounting base 122, a certain locking space can be reserved on the mounting support 123 for the locking member 112, so that the locking member 112 can be conveniently extended and retracted.
In one possible implementation, the mounting rod 1221 and the mounting plate 1222 may be connected by a hex nut washer, and the mounting plate 1222 and the driver 111 may also be connected by a hex nut. So that the stability of the connection between the mounting rod 1221 and the mounting plate 1222, and the mounting plate 1222 and the driving element 111 can be improved to some extent.
Referring to fig. 5 and 6, a connecting rod 1223 may be provided between the mounting rod 1221 and the driving member 111, and a hexagonal nut may be mounted on the connecting rod 1223, wherein molybdenum disulfide may be coated on the connecting rod 1223.
The molybdenum disulfide is solid powder prepared by chemically purifying natural molybdenum concentrate powder and changing a molecular structure, is a solid lubricant, can be added into various oils to form a colloid state which is never bonded, can increase the lubricity and extreme pressure property of the oils, is also suitable for mechanical working states of high temperature, high pressure and high rotational speed load, and prolongs the service life of equipment.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can lead the connection between the two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (10)

1. The wind generating set blade locking device is used for locking blades in a hub of a wind generating set and is characterized by comprising a locking controller, a driving locking assembly and a mounting assembly, wherein the wind generating set blade locking device is connected with the hub through the mounting assembly;
the installation component is provided with an installation area, the driving locking component is arranged in the installation area and is connected with the installation component, and the driving locking component is provided with a locking end which is used for installing the blade;
the locking controller is respectively and electrically connected with the driving locking assembly and the hub, the hub is configured to be triggered when the actual wind speed exceeds the preset wind speed, and the locking controller is configured to receive a trigger signal and drive the driving locking assembly to move towards the direction of the blade;
and when the locking end of the driven locking assembly moves to the inner gear ring of the variable-pitch bearing on the hub, the blades are locked in the hub, so that the locking state of the blades and the hub is formed.
2. The wind turbine blade locking device of claim 1, wherein the drive locking assembly comprises a drive member and a locking member;
the first end of the driving piece is connected with at least part of the structure of the installation assembly, the second end of the driving piece is connected with the first end of the locking piece, the second end of the locking piece penetrates through and is connected to at least part of the structure of the installation assembly, and the second end of the locking piece is the locking end of the driving locking assembly;
the locking controller is electrically connected with the driving piece, and is configured to receive the trigger signal and drive the driving piece to move towards the direction of the blade, and the driving piece drives the locking piece to move towards the direction of the blade.
3. The wind turbine blade locking device of claim 2, wherein the mounting assembly comprises a mounting base and a mounting bracket, the mounting bracket and the mounting base collectively enclosing the mounting area;
one end of the mounting bracket is connected with the mounting base, the other end of the mounting bracket is connected with the hub, and the blade locking device of the wind generating set is connected with the hub through the mounting bracket;
the first end of the driving piece is connected with the mounting base, and the second end of the locking piece is penetrated and connected to the mounting bracket.
4. A wind generating set blade locking apparatus as claimed in claim 3, wherein the mounting bracket comprises a bracket body, a first mounting portion and a second mounting portion;
the first installation part is arranged on one side of the bracket body, which is away from the locking piece, the first installation part is connected with the installation base, the second installation part is arranged on one side of the bracket body, which is close to the locking piece, and the second installation part is connected with the hub;
the support body is provided with a penetrating hole, the second end of the locking piece penetrates through the penetrating hole and is positioned outside the installation area, and the blade is installed on the locking end positioned outside the installation area.
5. The wind turbine blade locking device of claim 4, wherein the mounting base comprises a mounting bar and a mounting plate;
the mounting rod is arranged on one side of the mounting plate, which is away from the driving piece, and the first mounting part is connected with the mounting plate;
and the axis of the mounting rod is coincident with the axis of the driving locking assembly.
6. The wind turbine blade locking device of claim 4 or 5, wherein a gap is provided between an edge of the hole on a side of the through hole facing away from the mounting base and an end of the bracket body on a side facing away from the mounting base;
the horizontal distance of the spacing ranges from 150mm to 160mm.
7. A wind turbine blade locking arrangement according to any of claims 2-5, wherein the driving member comprises an electric push rod.
8. A wind turbine comprising a blade, a hub and a wind turbine blade locking device according to any one of claims 1-7;
the blade is arranged on a locking piece of the blade locking device of the wind generating set, and the hub is connected with a mounting bracket of the blade locking device of the wind generating set;
the hub is provided with a mounting hole, a mounting bracket of the wind turbine generator system blade locking device is assembled in the mounting hole, and the end face of the mounting bracket in the mounting hole is parallel to the hole edge of the mounting hole.
9. The wind generating set according to claim 8, further comprising a main controller, wherein a limit switch is arranged in the hub, the main controller is electrically connected with the wind generating set blade locking device and the limit switch respectively, the main controller is used for triggering the limit switch when the actual wind speed exceeds the preset wind speed, the limit switch generates a trigger signal, and the locking controller of the wind generating set blade locking device receives the trigger signal.
10. The wind generating set of claim 9, wherein the hub includes a hub body and a pitch bearing ring gear disposed on the hub body;
when the locking end of the blade locking device of the wind generating set moves into the inner gear ring of the variable-pitch bearing, the blade is locked in the hub body, and the locking state of the blade and the hub body is formed.
CN202310715821.2A 2023-06-15 2023-06-15 Wind generating set blade locking device and wind generating set Pending CN116624329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310715821.2A CN116624329A (en) 2023-06-15 2023-06-15 Wind generating set blade locking device and wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310715821.2A CN116624329A (en) 2023-06-15 2023-06-15 Wind generating set blade locking device and wind generating set

Publications (1)

Publication Number Publication Date
CN116624329A true CN116624329A (en) 2023-08-22

Family

ID=87621291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310715821.2A Pending CN116624329A (en) 2023-06-15 2023-06-15 Wind generating set blade locking device and wind generating set

Country Status (1)

Country Link
CN (1) CN116624329A (en)

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