CN114233571A - Direct-acting variable-pitch locking device - Google Patents
Direct-acting variable-pitch locking device Download PDFInfo
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- CN114233571A CN114233571A CN202111538438.1A CN202111538438A CN114233571A CN 114233571 A CN114233571 A CN 114233571A CN 202111538438 A CN202111538438 A CN 202111538438A CN 114233571 A CN114233571 A CN 114233571A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Classifications
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- 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
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- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
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- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/79—Bearing, support or actuation arrangements therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a direct-acting variable-pitch locking device, which is applied to an electric variable-pitch system of a wind generating set and comprises the following components: the mounting module is arranged on the hub web; the locking module is arranged in the mounting module, and the first end of the locking module is opposite to the inner gear ring of the hub bearing; one end of the transmission module is connected with the second end of the locking module; the electric control module is connected with the other end of the transmission module; the electric control module is used for controlling the transmission module to transmit according to the received control signal so as to push the locking module to move towards the inner gear ring of the hub bearing to perform locking operation; or the locking module is driven to move away from the inner gear ring of the hub bearing to perform unlocking operation. The invention adopts the electric control unit to control the whole mechanism, can manually or automatically complete locking and unlocking actions when relevant conditions are met, and is suitable for various working conditions such as fan overhaul, emergency and the like.
Description
Technical Field
The invention relates to the technical field of wind driven generators, in particular to a direct-acting type variable pitch locking device applied to an electric variable pitch system of a wind driven generator set.
Background
With the continuous improvement of the attention on the reliability of blade locking under the extreme wind speed and emergency working condition in the wind power generation industry, the effective locking of the blades by only improving the capability of a variable pitch driving system cannot meet the development requirements of the industry. With the continuous improvement of products, a variable pitch locking device (hereinafter referred to as a variable pitch lock) is introduced into a variable pitch system to effectively lock the blades at the limit wind speed under an emergency working condition. Currently, there are two types of pitch locks used in electrical pitch systems: a manual variable pitch lock and an electric push rod direct-push type variable pitch lock.
The disadvantages of the two above locks are as follows: the first variable pitch lock does not have a remote control function and can only be applied to fan maintenance conditions, and the output compensation torque is low; the second type of lock is divided into a radial bayonet type, an axial chuck type and an axial bayonet type. The radial latch type lock adopts the electric push rod to directly push, so that the capability of resisting the reverse thrust of the lock block is poor, the damage risk of the electric push rod driving motor can be increased, and the use reliability of the whole device is influenced; the axial chuck type needs to be matched with a chuck for use, the matching cost is high, and due to the adoption of an axial locking mode, a large gap exists between the chuck and a lock body, and large impact can be generated between the chuck and the lock body during working, so that the use stability of the device is influenced; and the axial latch type lock is limited by the structural form and the motion path of the actuating mechanism in the process of executing the locking action, the fault-tolerant rate of the locking mechanism in the process of meshing with the inner ring teeth of the bearing is extremely low, the tooth top part of the locking mechanism is easy to collide with the tooth top part of the inner ring teeth of the bearing, and then impact can be transmitted to the motor, so that the motor is easy to damage, and the axial latch type lock is not reliable.
Disclosure of Invention
The invention aims to provide a direct-acting type variable pitch locking device applied to an electric variable pitch system of a wind generating set, so as to overcome the defects in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a direct-acting type pitch-variable locking device is applied to an electric pitch-variable system of a wind generating set and comprises:
the mounting module 100 is arranged on a hub web plate in the wind generating set electrical pitch control system;
the locking module 200 is arranged in the mounting module 100, and a first end of the locking module is opposite to a hub bearing inner gear ring in the wind generating set electrical pitch control system;
a transmission module 300 having one end connected to a second end of the locking module 200;
the electronic control module 400 is connected with the other end of the transmission module 300, and the electronic control module 400 is used for controlling the transmission module 300 to transmit according to the received control signal so as to push the locking module 200 to move towards the inner gear ring of the hub bearing to perform locking operation; or, the locking module 200 is driven to move away from the inner gear ring of the hub bearing, so as to perform unlocking operation.
Optionally, the installation module 100 includes: a base 102, a transition flange 101 and a cover plate 103;
the hub web is located between the bottom of the base 102 and the transition flange 101;
the base 102 includes a base portion and a receptacle portion connected to each other; the base part is connected with the transition flange 101, and the transition flange 101 is connected with the hub web;
the accommodating part is provided with an accommodating chute, and the locking module 200 is positioned inside the accommodating chute; the cover plate 103 is arranged on the top of the accommodating chute.
Optionally, the locking module 200 comprises: the gear-shaped locking block 201, a first end of the gear-shaped locking block 201 is provided with a plurality of gear structures matched with the inner gear ring of the hub bearing, a cavity extending along the axial direction of the gear-shaped locking block 201 is arranged inside the gear-shaped locking block 201, and an opening of the cavity is positioned on the end face of a second end of the gear-shaped locking block 201;
a plurality of sealing ring grooves which are arranged on the outer surface of the tooth-shaped locking block 201 at intervals and are close to the tooth structure;
a plurality of sealing rings, one of which is correspondingly arranged in the sealing ring groove;
and the plurality of lubricating grooves are arranged on the outer surface of the bottom of the tooth-shaped locking block 201, extend along the axial direction of the tooth-shaped locking block, and are matched with the inner part of the bottom of the containing sliding groove.
Optionally, the transmission module 300 comprises: a bearing box 303, a nut seat 302 and a lead screw 301;
the bearing box 303 is arranged on the end of the accommodating part and is far away from the tooth structure of the tooth-shaped locking block 201; the nut seat 302 is arranged on the second end part of the tooth-shaped locking block 201;
the first end of the lead screw 301 penetrates through the nut base 302 and is in threaded connection with the nut base 302, and the second end of the lead screw is located in the bearing box 303 and is connected with the electronic control module 400.
Optionally, the electronic control module 400 comprises: a speed reducer 401 and a drive motor 402;
an output shaft of the speed reducer 401 is connected with a second end of the lead screw 301 to transmit torque to the lead screw 301;
the driving motor 402 is connected to an input shaft of the speed reducer, and is configured to provide a rotational power to the speed reducer 401 according to a received control signal.
Optionally, the second end of the screw 301 is provided with a hexagonal blind hole extending along the axial direction thereof,
the output shaft of the speed reducer 401 is inserted into the inner hexagonal blind hole.
Optionally, the electronic control module 400 further comprises: the position sensor 403 is arranged on the cover plate 103 and is connected with a wind driven generator main control system in the wind driven generator set electrical pitch control system; the position sensor 403 is used to monitor the position of the tooth lock block 201.
Optionally, the base 102 is integrally provided, and the bearing box 303 includes a bearing seat and a bearing, wherein the bearing seat is connected with the end of the accommodating portion in a sealing manner; the bearing is positioned inside the bearing seat; the bearing box 303 is an integrated bearing box.
Optionally, when the control signal received by the driving motor 402 is a locking signal, the driving motor 402 rotates to drive the speed reducer 401 to rotate, the speed reducer 401 drives the lead screw 301 to rotate to push the tooth-shaped locking block 201 to move close to the hub bearing ring gear, and a plurality of tooth structures of the tooth-shaped locking block 201 are engaged with the hub bearing ring gear to resist the torque transmitted by the hub side.
Optionally, when the control signal received by the driving motor 402 is an unlocking signal, the driving motor 402 rotates to drive the speed reducer 401 to rotate, the speed reducer 401 drives the lead screw 301 to rotate to push the tooth-shaped locking block 201 to move away from the hub bearing inner ring gear, and after the distance between the plurality of tooth structures of the tooth-shaped locking block 201 and the hub bearing inner ring gear reaches a preset distance, unlocking is completed.
The invention has at least one of the following advantages:
the invention adopts an electric control unit (electric control module) to control the whole mechanism, can manually or automatically complete locking and unlocking actions when relevant conditions are met, and is suitable for various working conditions such as fan overhaul, emergency and the like.
The invention resists the torque transmitted by the hub side by adopting the way that the tooth-shaped locking block is meshed with the inner gear ring of the hub bearing, thereby realizing the locking function and improving the reliability and the stability of the locking mechanism.
The process of meshing the tooth-shaped locking block and the inner ring of the hub bearing provided by the invention realizes meshing action in a pushing-in mode, has high fault-tolerant rate, does not generate impact, and indirectly protects the motor, thereby greatly improving the reliability and the economy.
Drawings
FIG. 1 is a front view of a direct acting pitch locking apparatus according to an embodiment of the present invention;
FIG. 2 is a top view of a direct-acting pitch locking device according to an embodiment of the present invention
FIG. 3 is a cross-sectional view of a direct acting pitch lock according to an embodiment of the present invention
Fig. 4 is a schematic position relationship diagram of the direct-acting pitch-control locking device provided in the embodiment of the present invention in an unlocked state;
fig. 5 is a schematic position relationship diagram of the direct-acting pitch locking device provided in the embodiment of the present invention in the locked state.
Detailed Description
The direct-acting pitch locking device provided by the invention is further described in detail below with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
As shown in fig. 1 and fig. 2, the present embodiment provides a direct-acting pitch-control locking device, which is applied to an electrical pitch-control system of a wind turbine generator system, and includes: the mounting module 100 is arranged on a hub web 10 in the wind generating set electrical pitch control system; the locking module 200 is arranged in the mounting module 100, and a first end of the locking module is opposite to a hub bearing inner gear ring in the wind generating set electrical pitch control system; a transmission module 300 having one end connected to a second end of the locking module 200; the electronic control module 400 is connected with the other end of the transmission module 300, and the electronic control module 400 is used for controlling the transmission module 300 to transmit according to the received control signal so as to push the locking module 200 to move towards the inner gear ring of the hub bearing to perform locking operation; or, the locking module 200 is driven to move away from the inner gear ring of the hub bearing, so as to perform unlocking operation.
As shown in fig. 3, the installation module 100 includes: a base 102, a transition flange 101 and a cover plate 103; the hub web 10 is located between the bottom of the base 102 and the transition flange 101; the base 102 includes a base portion and a receptacle portion connected to each other; the base part is connected with the transition flange 101, and the transition flange 101 is connected with the hub web 10; the accommodating part is provided with an accommodating chute, and the locking module 200 is positioned inside the accommodating chute; the cover plate 103 is arranged on the top of the accommodating chute.
Specifically, a guide sliding groove extending along the axial direction of the accommodating sliding groove can be formed in the central position of the accommodating sliding groove, and a plurality of lubricating grease injection points are arranged at the lubricating position on the guide sliding groove.
The top groove edge of the accommodating groove body is provided with a plurality of first threaded holes, and the first threaded holes are used for penetrating through the cover plate 103 and the first threaded holes through first bolts so as to fix the cover plate 103 on the top of the accommodating groove body. The cover plate 103 is a flat plate structure. The second end part of the accommodating groove body is provided with a mounting hole and a bolt connecting hole of the bearing box 303; the bearing box 303 is fixed on the second end of the accommodating groove body by penetrating through the bolt connecting hole through a second bolt. The transition flange 101 is of a disc-shaped structure, and through holes uniformly distributed around the center are designed on the periphery of the transition flange and used for transition connection between the base 102 and the hub web 10.
The design has the installation on transition flange 101's the bottom to use location sign, installation with multiunit locating hole and location tang, and location tang terminal surface design has multiunit transition flange to connect and uses the third screw hole, and the ring flange middle part is equipped with the lubricated fabrication hole of locking module, and the location sign here, multiunit locating hole and location tang and lubricated fabrication hole specific structure as long as can realize corresponding function can, no longer gives details here.
With continued reference to fig. 3, the locking module 200 includes: the gear-shaped locking block 201, a first end of the gear-shaped locking block 201 is provided with a plurality of gear structures matched with the inner gear ring of the hub bearing, a cavity extending along the axial direction of the gear-shaped locking block 201 is arranged inside the gear-shaped locking block 201, and an opening of the cavity is positioned on the end face of a second end of the gear-shaped locking block 201; a plurality of sealing ring grooves which are arranged on the outer surface of the tooth-shaped locking block 201 at intervals and are close to the tooth structure; a plurality of sealing rings, one of which is correspondingly arranged in the sealing ring groove; and the plurality of lubricating grooves are arranged on the outer surface of the bottom of the tooth-shaped locking block 201, extend along the axial direction of the tooth-shaped locking block, and are matched with the inner part of the bottom of the containing sliding groove.
In this embodiment, the cavity is cylindrical. A plurality of fourth threaded holes are formed in the second end face of the tooth-shaped locking block 201 around the opening of the cavity at intervals, and the fourth threaded holes are used for installing a flange of the nut seat 302 so as to fix the nut seat 302 on the second end face of the tooth-shaped locking block 201.
With continued reference to fig. 3, the transmission module 300 includes: a bearing box 303, a nut seat 302 and a lead screw 301; the bearing box 303 is arranged on the end of the accommodating part and is far away from the tooth structure of the tooth-shaped locking block 201; the nut seat 302 is arranged on the second end part of the tooth-shaped locking block 201; the first end of the lead screw 301 penetrates through the nut base 302 and is in threaded connection with the nut base 302, and the second end of the lead screw is located in the bearing box 303 and is connected with the electronic control module 400.
With continued reference to fig. 3, the electronic control module 400 includes: a speed reducer 401 and a drive motor 402;
an output shaft of the speed reducer 401 is connected with a second end of the lead screw 301 to transmit torque to the lead screw 301; the driving motor 402 is connected to an input shaft of the speed reducer, and is configured to provide a rotational power to the speed reducer 401 according to a received control signal.
Referring to fig. 3, an inner hexagonal blind hole extending along the axial direction is formed at the second end of the lead screw 301, and the output shaft of the speed reducer 401 is inserted into the inner hexagonal blind hole.
The lead screw 301 is a shaft-shaped part, rectangular threads are designed on the lead screw for being matched with a nut seat to transmit displacement, a shaft shoulder is designed for mounting a bearing, and a hexagonal blind hole is designed on the end face of the bearing mounting side for being matched with an output shaft of the speed reducer to transmit torque; the nut seat 302 is of a sleeve structure with an end face flange, rectangular threads are designed on the inner side of the nut seat and are matched with the rectangular threads on the screw rod, and a flange and through holes which are uniformly distributed in the circumferential direction are designed on the end face of one side of the nut seat and are used for being connected with the base; the outer cylindrical surface is provided with a through hole for adding lubricating grease.
With continued reference to fig. 3, the base 102 is integrally formed, and the bearing box 303 is an integral bearing box. The bearing box 303 comprises a bearing seat and a bearing, and the bearing seat is hermetically connected with the end of the accommodating part by adopting a lip-shaped sealing ring; the bearing is positioned inside the bearing seat; the bearing frame is a sleeve structure with a flange, mounting holes are axially and uniformly distributed in the flange, threaded holes which are circumferentially and uniformly distributed in the end face of the bearing frame are used for mounting the output end of the speed reducer, and threaded holes are designed in the outer side surface of the bearing frame and used for mounting the oil injection nozzle.
With continued reference to fig. 3, the electronic control module 400 further includes: the position sensor 403 is arranged on the cover plate 103 and is connected with a wind driven generator main control system in the wind driven generator set electrical pitch control system; the position sensor 403 is used to monitor the position of the tooth lock block 201.
As shown in fig. 5, when the control signal received by the driving motor 402 is a locking signal, the driving motor 402 rotates to drive the speed reducer 401 to rotate, the speed reducer 401 drives the lead screw 301 to rotate to push the tooth-shaped locking block 201 to move close to the hub bearing inner ring gear, and a plurality of tooth structures of the tooth-shaped locking block 201 are engaged with the hub bearing inner ring gear to resist the torque transmitted by the hub side.
Specifically, when the fan operates, the present embodiment is in a normal unlocking state, and a sufficient gap is designed between the tooth-shaped locking block 201 and the inner gear ring of the hub bearing to ensure that the tooth crest of the inner gear ring of the propeller bearing does not interfere with the tooth crest of the tooth-shaped locking block when the blades change the pitch, so that the fan operates normally. The position relationship between the tooth-shaped locking piece and the bearing inner ring is shown in figure 4.
When the wind field detects that strong wind needs to adjust the blades to be in the feathering position for locking, a signal (which can be sent automatically or sent manually) is sent by the fan main control system and transmitted to the electronic control module 400 of the embodiment, and the electronic control module 400 sends a locking signal to the driving motor 402 and then executes a locking action. The method comprises the following steps:
the driving motor 402 receives a signal to start operation, transmits the rotation motion to a reduction gearbox (speed reducer 401), and transmits the rotation motion to the screw 30 of the transmission module 300 after passing through the reduction gearbox. The rotational motion is converted into a linear motion by the conversion between the lead screw 301 and the nut holder 302 and transmitted to the nut holder 302 to push the nut holder 302 to move horizontally in the axial direction thereof. The nut holder 302 pushes the tooth lock 201 into engagement with the hub bearing ring gear to resist the torque transmitted from the hub side of the blade.
When the wind speed is normal, the main control system sends a signal of motor reverse rotation to the electronic control module 400 of the mechanism, and the transmission module 300 moves in the opposite direction to execute the unlocking action.
As shown in fig. 4, when the control signal received by the driving motor 402 is an unlocking signal, the driving motor 402 rotates to drive the speed reducer 401 to rotate, the speed reducer 401 drives the screw 301 to rotate to push the tooth-shaped locking block 201 to move away from the hub bearing inner ring gear, and after the distance between the plurality of tooth structures of the tooth-shaped locking block 201 and the hub bearing inner ring gear reaches a preset distance, unlocking is completed.
In the embodiment, an electric control unit (an electric control module) is adopted to control the whole mechanism, and locking and unlocking actions can be manually or automatically completed when relevant conditions are met, so that the device is suitable for various working conditions such as fan overhaul and emergency.
In the embodiment, the gear-shaped locking block is engaged with the inner gear ring of the hub bearing to resist the torque transmitted by the hub side so as to realize the locking function, and the reliability and the stability of the locking mechanism are improved.
The process that the profile of tooth locking piece and the wheel hub bearing inner race meshing that this embodiment provided adopts the mode of pushing to realize the meshing action, and the fault-tolerant rate is high, can not appear assaulting, has indirectly protected the motor to make reliability and economic nature all promote by a wide margin.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it is to be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. The utility model provides a direct action type becomes oar locking device, its is applied to among the wind generating set electricity becomes oar system, its characterized in that includes: an installation module (100) arranged on a hub web in the wind turbine generator set electrical pitch system;
the locking module (200) is arranged in the mounting module (100), and the first end of the locking module is opposite to a hub bearing inner gear ring in the wind generating set electrical pitch control system;
a transmission module (300) having one end connected with a second end of the locking module (200);
an electronic control module (400) connected with the other end of the transmission module (300),
the electric control module (400) is used for controlling the transmission module (300) to transmit according to the received control signal so as to push the locking module (200) to move towards the inner gear ring of the hub bearing to perform locking operation; or the locking module (200) is driven to move away from the inner gear ring of the hub bearing to perform unlocking operation.
2. Direct-acting pitch locking arrangement according to claim 1, wherein the mounting module (100) comprises: the device comprises a base (102), a transition flange (101) and a cover plate (103);
the hub web is located between the bottom of the base (102) and a transition flange (101);
the base (102) comprises a base portion and a receptacle portion connected to each other; the base part is connected with the transition flange (101), and the transition flange (101) is connected with the hub web;
the accommodating part is provided with an accommodating sliding groove, and the locking module (200) is positioned in the accommodating sliding groove;
the cover plate (103) is arranged at the top of the accommodating sliding groove.
3. Direct-acting pitch locking arrangement according to claim 2, wherein the locking module (200) comprises: the gear-shaped locking block (201), a first end of the gear-shaped locking block (201) is provided with a plurality of gear structures matched with the inner gear ring of the hub bearing, a cavity extending along the axial direction of the gear-shaped locking block (201) is arranged inside the gear-shaped locking block (201), and an opening of the cavity is positioned on the end face of a second end of the gear-shaped locking block (201);
a plurality of sealing ring grooves which are arranged on the outer surface of the tooth-shaped locking block (201) at intervals and are close to the tooth structure;
a plurality of sealing rings, one of which is correspondingly arranged in the sealing ring groove;
the plurality of lubricating grooves are formed in the outer surface of the bottom of the tooth-shaped locking block (201), extend along the axial direction of the tooth-shaped locking block, and are matched with the inner portion of the bottom of the containing sliding groove.
4. Direct-acting pitch locking device according to claim 3, wherein the transmission module (300) comprises: the bearing box (303), the nut seat (302) and the lead screw (301);
the bearing box (303) is arranged on the end part of the accommodating part and is far away from the tooth structure of the tooth-shaped locking block (201);
the nut seat (302) is arranged on the second end part of the tooth-shaped locking block (201);
the first end of the lead screw (301) penetrates through the nut seat (302) and is in threaded connection with the nut seat (302), and the second end of the lead screw is located in the bearing box (303) and is connected with the electronic control module (400).
5. Direct-acting pitch locking device according to claim 4, wherein said electronic control module (400) comprises: a speed reducer (401) and a drive motor (402);
an output shaft of the speed reducer (401) is connected with a second end of the lead screw (301) so as to transmit torque to the lead screw (301);
the driving motor (402) is connected with an input shaft of the speed reducer and used for providing rotary power for the speed reducer (401) according to the received control signal.
6. The direct-acting pitch-control locking device according to claim 5, wherein the second end of the screw (301) is provided with a hexagonal socket hole extending along the axial direction of the screw, and the output shaft of the speed reducer (401) is inserted into the hexagonal socket hole.
7. Direct-acting pitch locking according to claim 6, wherein the electronic control module (400) further comprises: the position sensor (403) is arranged on the cover plate (103) and is connected with a wind driven generator main control system in the wind driven generator set electrical variable pitch system;
the position sensor (403) is used for monitoring the position of the toothed locking block (201).
8. Direct-acting pitch locking device according to claim 7, wherein the base (102) is integrally arranged, the bearing cartridge (303) comprises a bearing seat and a bearing, and the bearing seat is connected with the end of the accommodating part in a sealing way; the bearing is positioned inside the bearing seat;
the bearing box (303) is an integrated bearing box.
9. The direct-acting pitch-control locking device according to claim 8, wherein when the control signal received by the driving motor (402) is a locking signal, the driving motor (402) rotates to drive the speed reducer (401) to rotate, the speed reducer (401) drives the lead screw (301) to rotate to push the tooth-shaped locking block (201) to move close to the hub bearing inner ring gear, and a plurality of tooth structures of the tooth-shaped locking block (201) are engaged with the hub bearing inner ring gear to resist the torque transmitted by the hub side.
10. The direct-acting type pitch-control locking device according to claim 8, wherein when the control signal received by the driving motor (402) is an unlocking signal, the driving motor (402) rotates to drive the speed reducer (401) to rotate, the speed reducer (401) drives the lead screw (301) to rotate to push the tooth-shaped locking block (201) to move away from the inner gear ring of the hub bearing, and the unlocking is completed after the distance between a plurality of tooth structures of the tooth-shaped locking block (201) and the inner gear ring of the hub bearing reaches a preset distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111538438.1A CN114233571A (en) | 2021-12-15 | 2021-12-15 | Direct-acting variable-pitch locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111538438.1A CN114233571A (en) | 2021-12-15 | 2021-12-15 | Direct-acting variable-pitch locking device |
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| Publication Number | Publication Date |
|---|---|
| CN114233571A true CN114233571A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111538438.1A Pending CN114233571A (en) | 2021-12-15 | 2021-12-15 | Direct-acting variable-pitch locking device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979673A (en) * | 2011-09-02 | 2013-03-20 | 远景能源（丹麦）有限公司 | Pitch lock system |
| CN209781129U (en) * | 2019-01-30 | 2019-12-13 | 明阳智慧能源集团股份公司 | Automatic blade locking device for wind generating set to be locked along radial direction of blade root |
-
2021
- 2021-12-15 CN CN202111538438.1A patent/CN114233571A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979673A (en) * | 2011-09-02 | 2013-03-20 | 远景能源（丹麦）有限公司 | Pitch lock system |
| CN209781129U (en) * | 2019-01-30 | 2019-12-13 | 明阳智慧能源集团股份公司 | Automatic blade locking device for wind generating set to be locked along radial direction of blade root |
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