CN113294301B - Wind wheel locking system, wind generating set, mounting method and alignment method - Google Patents

Wind wheel locking system, wind generating set, mounting method and alignment method Download PDF

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Publication number
CN113294301B
CN113294301B CN202110738844.6A CN202110738844A CN113294301B CN 113294301 B CN113294301 B CN 113294301B CN 202110738844 A CN202110738844 A CN 202110738844A CN 113294301 B CN113294301 B CN 113294301B
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Prior art keywords
wind wheel
alignment
photosensitive
assembly
early warning
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CN202110738844.6A
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CN113294301A (en
Inventor
张黎明
李强
王露克
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Shanghai Electric Wind Power Group Co Ltd
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Shanghai Electric Wind Power Group Co Ltd
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Priority to CN202110738844.6A priority Critical patent/CN113294301B/en
Publication of CN113294301A publication Critical patent/CN113294301A/en
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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
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0691—Rotors characterised by their construction elements of the hub
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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
    • F03D7/0264—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
    • F03D7/0268—Parking or storm protection
    • 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
    • F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05B2270/804—Optical devices
    • 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)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

The invention discloses a wind wheel locking system, a wind generating set, an installation method and an alignment method, wherein the wind wheel locking system comprises a wind wheel locking disc, a bolt seat, an alignment part, a photosensitive assembly and an early warning assembly, the alignment part is provided with an alignment area and connected to the bolt seat or formed on the bolt seat, the photosensitive assembly is arranged on the wind wheel locking disc and rotates along with the wind wheel locking disc, when the photosensitive assembly rotates to a target position, the projections of the photosensitive assembly on the alignment part are all positioned in the alignment area, and a locking hole of the wind wheel locking disc is aligned with a bolt of the bolt seat; the early warning assembly is electrically connected with the photosensitive assembly, and when the photosensitive assembly reaches a target position, the early warning assembly can send out early warning information. According to the invention, whether the locking hole is aligned with the bolt is judged by whether the early warning information sent by the early warning assembly is received, so that the alignment condition of the locking hole and the bolt can be known more accurately and clearly, the alignment difficulty is reduced, the working hours consumed by repeated alignment of workers are reduced, and the alignment efficiency is improved.

Description

Wind wheel locking system, wind generating set, mounting method and alignment method
Technical Field
The invention relates to the field of wind power generation, in particular to a wind wheel locking system, a wind generating set, an installation method and an alignment method.
Background
During the operation and maintenance of the wind generating set, the wind wheel needs to be locked in order to ensure the safety of workers. The wind wheel locking system comprises a wind wheel locking disc and a bolt seat, and a plurality of bolts are installed on the bolt seat. In the process of locking the wind wheel, the wind wheel locking disc is fixed on the wind wheel and synchronously rotates along with the wind wheel, the bolt seat is fixed on a main frame of the cabin and keeps relatively static, a worker aligns a locking hole in the wind wheel locking disc with a bolt on the bolt seat through the operation of a barring, and the bolt is further inserted into the locking hole to realize that the wind wheel locking disc is static relative to the bolt seat, so that the wind wheel is locked.
Because the sight of the staff who carries out the barring operation can be sheltered from and far away scheduling reason apart from wind wheel locking plate by other equipment in the cabin, need several staff's cooperation to just can realize the wind wheel locking usually, wherein, someone is responsible for carrying out the bolt alignment on locking hole on the wind wheel locking plate and the bolt seat, and someone is responsible for carrying out the barring, leads to the human cost great. In addition, in the prior art, whether the locking hole in the wind wheel locking disc is aligned with the bolt on the bolt seat or not is judged by experience through visual observation of workers, the alignment difficulty is high, errors are easy to generate, the bolt cannot be accurately inserted into the locking hole, the barring workers are required to perform barring again, the working hours are increased, and the working efficiency is reduced. Meanwhile, due to the cooperation of a plurality of workers, the information transmission and operation among the workers are delayed, and the working efficiency is further reduced.
Disclosure of Invention
The invention aims to overcome the defect that in the process of locking a wind wheel, a locking hole in a wind wheel locking disc is aligned with a bolt on a bolt seat with high difficulty to cause low locking efficiency, and provides a wind wheel locking system, a wind generating set, an installation method and an alignment method.
The invention solves the technical problems through the following technical scheme:
the utility model provides a wind wheel locking system, includes wind wheel locking plate and bolt seat, wind wheel locking plate fixes on the wind wheel and can follow the wind wheel is rotatory, wind wheel locking system still includes:
an alignment portion having an alignment area, the alignment portion remaining stationary relative to the pin base;
the photosensitive assembly is arranged on the wind wheel locking disc and rotates along with the wind wheel locking disc, when the photosensitive assembly rotates to a target position, the projections of the photosensitive assembly on the alignment parts are all located in the alignment areas, and the locking holes of the wind wheel locking disc are aligned with the bolts of the bolt seats;
an early warning assembly electrically connected to the photosensitive assembly, the early warning assembly configured to: when the photosensitive assembly reaches the target position, the early warning assembly can send out early warning information.
In the scheme, the photosensitive assembly rotates synchronously along with the wind wheel locking disk, and the alignment part is kept static relative to the bolt seat, so that the position relation between the locking hole of the wind wheel locking disk and the bolt of the bolt seat can be indirectly reflected through the position relation between the photosensitive assembly and the alignment part. When the photosensitive assembly rotates to the target position, the locking hole is aligned with the bolt, the projections of the photosensitive assembly on the alignment part are located in the alignment area, the photosensitive assembly is completely shielded by the alignment area of the alignment part in the axis direction of the wind wheel locking disc, light sensed by the photosensitive assembly is weakened to the intensity capable of enabling the photosensitive assembly to work, and the early warning assembly electrically connected with the photosensitive assembly can send out early warning information according to the characteristics of the photosensitive assembly. On the contrary, when the photosensitive assembly does not rotate to the target position completely, the locking hole is not aligned with the bolt, the photosensitive assembly is not completely shielded by the alignment area of the alignment part in the axis direction of the wind wheel locking disc, light rays felt by the photosensitive assembly are strong, the photosensitive assembly cannot work, and according to the characteristics of the photosensitive assembly, the early warning assembly electrically connected with the photosensitive assembly cannot send out early warning information. Compared with the prior art that the alignment condition of the locking hole and the bolt is observed through human eyes, the alignment condition of the locking hole and the bolt can be judged more accurately and clearly by judging whether the locking hole and the bolt are aligned or not by receiving the early warning information sent by the early warning assembly, the alignment difficulty is reduced, the working hours consumed by repeated alignment of workers are reduced, and the alignment efficiency is improved.
Preferably, the photosensitive assembly includes a plurality of photosensitive elements, and when the photosensitive assembly reaches the target position, projections of at least two of the photosensitive elements on the alignment portion are respectively close to or located at two edges of the alignment area in the rotation direction of the wind wheel locking disk, compared with the center of the alignment portion.
In this scheme, because two edges that at least two photosensitive assemblies correspond respectively to the alignment region set up on wind wheel locking disk, consequently no matter wind wheel locking disk rotates not in place or excessively rotates and can lead to photosensitive assembly can not be sheltered from by the alignment region of alignment portion completely to can't trigger early warning subassembly and send early warning information, reduce the alignment degree of difficulty.
Preferably, the diameter of the locking hole is larger than the diameter of the bolt, and when the center of the bolt is aligned with the center of the locking hole, a gap exists between the projection of the two light-sensitive elements on the two outermost sides of the light-sensitive assembly on the alignment part and the two edges of the corresponding alignment area along the rotation direction of the wind wheel locking disc.
In this scheme, because there is the hysteresis quality at the in-process that the staff received early warning information and stopped rotatory wind wheel, bolt and locking hole are difficult to aim at completely, and the above-mentioned setting can reduce the alignment degree of difficulty, avoids the staff to aim at repeatedly, improves and aims at efficiency.
Preferably, the early warning component is connected in series with a plurality of the photosensitive elements in the corresponding photosensitive component.
In this scheme, above-mentioned setting needs all photosensitive assemblies all to be sheltered from by the alignment region of alignment portion, and when the light that feels was the weakest, the early warning subassembly just can circular telegram and send early warning information, further reduces the alignment degree of difficulty.
Preferably, the photosensitive element comprises a photosensitive switch;
when the projection of the photosensitive switch on the alignment part is totally positioned in the alignment area, the photosensitive switch is closed;
when at least part of the projection of the photosensitive switch on the alignment part is positioned outside the alignment area, the photosensitive switch is opened.
In this scheme, closure through photosensitive switch, open and decide whether can form closed circuit, thereby decide whether the early warning subassembly can switch on and send out early warning information, only under the condition that photosensitive switch is sheltered from by the alignment region of alignment portion completely, photosensitive switch just can be closed, even photosensitive switch only partly structure is not sheltered from by the alignment region of alignment portion, photosensitive switch also is in the open mode, thereby can prevent under the rotatory not-in-place or excessive rotatory condition of photosensitive switch, judge that locking hole and bolt are aimed at, thereby reduce and aim at the degree of difficulty.
Preferably, the early warning assembly is disposed outside the locking hole of the wind wheel locking disk.
In this scheme, the aforesaid sets up the installation that makes things convenient for the early warning subassembly, and can realize carrying out the dismantlement of early warning subassembly again after all lockholes and bolt are connected, compares in dismantling the early warning subassembly earlier before connecting lockhole and bolt, can in time learn the position of lockhole and bolt and whether produce the skew in the connection process to improve the reliability of aiming at.
Preferably, the early warning assembly comprises an acoustic early warning device.
In this scheme, sound precaution device is through making a sound to staff transmission early warning information, select sound precaution device as the structure of transmission early warning information, can make the staff who rotates the wind wheel can directly judge the locking hole and aim at the condition with the bolt through the sense of hearing, the propagation of sound is influenced by shelter from thing or distance littleer, compare in the selection vision precaution device to staff transmission information, can need not consider whether the staff can see or see the early warning information of vision precaution device transmission clearly, thereby make the mounted position of early warning subassembly more nimble, also can need not arrange in addition that the staff specially receives early warning information, reduce staff's quantity, reduce the human cost.
Preferably, the pin base forms the alignment portion, and a side of the pin base facing the wind wheel locking disk is the alignment area.
In this scheme, utilize bolt seat self structure as alignment portion, can need not set up other structures in addition again as alignment portion, simplify the holistic structure of wind wheel locking system, reduce processing and assemble man-hour.
A wind park comprising a rotor locking system as described above.
In the scheme, the wind wheel locking system is used for locking the wind wheel during operation and maintenance of the wind generating set, and safety of maintenance personnel is guaranteed.
Preferably, the wind generating set further includes a bearing seat, the bearing seat includes a bearing seat body and the pin seat, the pin seat extends radially outward from a radially outer side surface of the bearing seat body, and a projection of the photosensitive assembly on the alignment portion is located radially outward of the bearing seat body.
In this scheme, above-mentioned setting is used for guaranteeing that photosensitive element can not blockked by the bearing frame body at rotatory in-process, only can just blockked when photosensitive element rotates the corresponding position department of aiming at the portion, guarantees the accuracy that locking hole and bolt were aimed at.
A method of assembling a rotor locking system for assembling a rotor locking system as described above, comprising the steps of:
aligning the locking hole of the wind wheel locking disc with the bolt of the bolt seat;
marking a projection area of the alignment area on the wind wheel locking disk;
marking the installation position of a photosensitive component in the projection area;
the photosensitive member is mounted at the mounting position of the marked photosensitive member.
In this scheme, the photosensitive assembly carries out mounted position on the basis that locking hole and bolt are aimed at to guarantee that the mounted position of the photosensitive assembly of mark can be when aiming at next time, realize when photosensitive assembly all by the alignment region of alignment portion shelters from under the condition, locking hole and bolt are aimed at, reduce and aim at the degree of difficulty.
A method for aligning the locking of wind wheel,
the alignment method uses the wind wheel locking system as described above for alignment between the locking hole of the wind wheel locking disc and the pin of the pin base, the alignment method comprising the steps of:
rotating a wind wheel to rotate the photosensitive assembly to the target position;
and when the early warning information sent by the early warning assembly is received, the wind wheel stops rotating.
In this scheme, the staff is rotatory through the drive wind wheel, and then the photosensitive element of drive installation on the wind wheel locking plate is rotatory, when photosensitive element is rotatory to the target location, the locking hole is in the aligned state with the bolt, the light that photosensitive element experienced weakens to the intensity that can make photosensitive element work, according to photosensitive element's characteristic, the early warning subassembly of being connected with the photosensitive element electricity can send early warning information, the staff stops rotatory wind wheel after receiving the information, the locking of locking hole and bolt is carried out.
The positive progress effects of the invention are as follows: compared with the prior art that the alignment condition of the locking hole and the bolt is observed through human eyes, the scheme judges whether the locking hole and the bolt are aligned or not by receiving the early warning information sent by the early warning assembly, can more accurately and clearly know the alignment condition of the locking hole and the bolt, reduces the alignment difficulty, reduces the working hours consumed by repeated alignment of workers, and improves the alignment efficiency.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a wind turbine generator system according to embodiment 1 of the present invention.
Figure 2 is a side view schematic of the wind wheel locking system of embodiment 1 of the invention.
Fig. 3 is a front view schematically illustrating a wind wheel locking disk of the embodiment 1 of the present invention, wherein the photosensitive assembly is not rotated to a target position.
Fig. 4 is a front view schematically illustrating a wind wheel locking disk of the embodiment 1 of the present invention, wherein the photosensitive assembly is rotated to a target position.
Fig. 5 is a schematic circuit diagram of the connection between the photosensitive element and the early warning element in embodiment 1 of the present invention.
Fig. 6 is a front view structural schematic diagram of a part of a bearing housing in embodiment 1 of the present invention.
Fig. 7 is a front view schematically showing the structure of the wind wheel locking disk when the photosensitive assembly of embodiment 2 of the present invention is completely rotated to the target position.
Fig. 8 is a front view of a wind wheel lock disk in alignment with the center of a latch pin when the center of a lock hole is aligned with the center of the latch pin according to embodiment 2 of the present invention.
Fig. 9 is a schematic front view of the wind wheel locking disk when the photosensitive assembly of embodiment 2 of the present invention is to be rotated out of the target position.
Description of reference numerals:
tower 11
Nacelle 12
Rotating shaft 13
Hub 14
Blade 15
Bearing block 16
Bearing housing body 161
Wind wheel locking disk 2
Locking hole 21
Bolt seat 3
Bolt 31
Alignment part 32
Alignment area 321
First photosensitive element 41
Second photosensitive element 42
Early warning assembly 5
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present embodiment discloses a wind turbine generator set including a tower 11, a nacelle 12, a rotating shaft 13, a hub 14, blades 15, and bearing blocks 16. The lower end of the tower 11 is fixed to the ground and is kept stationary relative to the ground, and the upper end of the tower 11 is connected to a main frame (not shown) of the nacelle 12, which is rotatable relative to the tower 11 about the axis of the tower 11. The hub 14 and the blades 15 form a wind wheel, the bearing seat 16 is sleeved on the radial outer side of the rotating shaft 13 and fixed on the main frame, and the hub 14, the blades 15 and the rotating shaft 13 can synchronously rotate around the rotating axis.
As shown in fig. 2-6, the wind turbine generator system further includes a wind wheel locking system for braking and locking the wind wheel, and the wind wheel locking system is used for locking the wind wheel during operation and maintenance of the wind turbine generator system so as to prevent the wind wheel from rotating and ensure safety of workers.
As shown in fig. 2, the wind turbine locking system comprises a wind turbine locking disk 2 and a latch socket 3, the wind turbine locking disk 2 is fixed on a hub 14 in the wind turbine, the wind turbine locking disk 2 can rotate around a rotation axis along with the wind turbine, and the latch socket 3 is installed on a main frame of a nacelle 12 and is kept stationary relative to the main frame. A plurality of locking holes 21 are formed in the wind wheel locking disc 2, a bolt 31 is installed on the bolt seat 3, the wind wheel locking disc 2 is static relative to the bolt seat 3 through the bolt 31 connected with the locking holes 21, and then the wind wheel is locked. The braking and locking of the wind wheel in this embodiment means that the wind wheel is kept relatively stationary with respect to the main frame, i.e., the nacelle 12, and the function of the structure of the main frame belongs to the prior art in the field, and is not described herein.
The bolt 31 in this embodiment is always fixed to the bolt seat 3, and the bolt is movable relative to the bolt seat 3. When the wind wheel locking operation is needed, the bolt 31 on the bolt seat 3 can be pushed into the locking hole 21 in a pressing mode or the like, and the wind wheel locking disc 2 is fixed relative to the bolt seat 3. When the wind wheel locking operation is not performed, the bolt 31 is retracted from the locking hole 21 and is reset to the initial state, in other alternative embodiments, the bolt 31 may also be designed to be not always fixed on the bolt seat 3, and when the wind wheel locking operation is required, the bolt 31 is connected to the bolt hole on the bolt seat 3 and the locking hole 21 on the wind wheel locking disc 2. The embodiment designs the bolt 31 to be always fixed on the bolt seat 3, facilitating quick connection with the locking hole 21.
As shown in fig. 3-5, the wind wheel locking system further comprises an alignment portion 32, a photosensitive assembly and a pre-warning assembly 5. As shown in fig. 3 and 4, alignment portion 32 has an alignment area 321, and alignment portion 32 remains stationary with respect to pin holder 3. The photosensitive assembly is arranged on the wind wheel locking disc 2 and rotates around the rotation axis along with the wind wheel locking disc 2, when the photosensitive assembly rotates to the target position, as shown in fig. 4, the locking hole 21 of the wind wheel locking disc 2 is aligned with the pin 31 of the pin seat 3, the photosensitive assembly is completely shielded by the alignment area 321 of the alignment part 32 in the axial direction of the wind wheel locking disc 2, and the projections of the photosensitive assembly on the alignment part 32 are all located in the alignment area 321. Early warning subassembly 5 is connected with the photosensitive component electricity, and early warning subassembly 5 is set up as: when the photosensitive assembly reaches the target position, namely the locking hole 21 is aligned with the bolt 31, the early warning assembly 5 can send out early warning information, and the working personnel stop rotating the wind wheel after receiving the early warning information.
The target position referred to in this embodiment does not refer to a fixed position, but refers to a position where the photosensitive element is located when the locking hole 21 of the wind wheel locking disk 2 is aligned with the bolt 31 of the bolt seat 3. The projections of the photosensitive elements on the alignment portions 32 are all located in the alignment regions 321, and the photosensitive elements can operate.
Theoretically, when the warning module 5 just sends the warning message, the locking hole 21 and the latch 31 are just in a perfect alignment state, and the worker should stop rotating the wind wheel immediately. However, in the actual operation process, the process from the process of receiving the warning message to the process of stopping rotating the wind wheel by the staff is delayed, the locking hole 21 and the bolt 31 are difficult to be completely and accurately aligned, slight deviation may exist, but at least the bolt 31 can be ensured to be inserted into the locking hole 21. Usually, when a worker designs the plug 31 of the plug seat 3, the worker generally designs that the diameter of the locking hole 21 of the wind wheel locking plate 2 is larger than that of the plug 31, so as to reduce the alignment difficulty between the locking hole 21 and the plug 31, avoid repeated alignment of the worker, and improve the alignment efficiency.
Since the photosensitive assembly rotates synchronously with the wind wheel locking disk 2, and the aligning part 32 is kept stationary relative to the pin base 3, the positional relationship between the locking hole 21 of the wind wheel locking disk 2 and the pin 31 of the pin base 3 can be indirectly reflected by the positional relationship between the photosensitive assembly and the aligning part 32.
When the photosensitive assembly rotates to the target position, as shown in fig. 4, the locking hole 21 is aligned with the plug pin 31, and at this time, the projections of the photosensitive assembly on the alignment portion 32 are all located in the alignment area 321, which means that the photosensitive assembly is completely shielded by the alignment area 321 of the alignment portion 32 in the axial direction of the wind wheel locking disk 2, the light sensed by the photosensitive assembly is attenuated to the intensity that the photosensitive assembly can work, and the warning assembly 5 electrically connected with the photosensitive assembly can send warning information according to the characteristics of the photosensitive assembly.
On the contrary, when the photosensitive element has not completely rotated to the target position, as shown in fig. 3, the locking hole 21 is not aligned with the latch 31, the photosensitive element is not completely shielded by the alignment area 321 of the alignment portion 32 in the axial direction of the wind wheel locking disk 2, the light sensed by the photosensitive element is strong, and the photosensitive element cannot work, and the warning element 5 electrically connected to the photosensitive element cannot send warning information according to the characteristics of the photosensitive element.
The characteristics and the working principle of the photosensitive element belong to the prior art in the field, and are not described herein. Compared with the prior art in which human eyes see the alignment condition between the locking hole 21 and the bolt 31 through the bolt 31, the embodiment determines whether the locking hole 21 and the bolt 31 are aligned by receiving the warning information sent by the warning component 5, which is different from the most accurate condition that the locking hole 21 and the bolt 31 are determined by relying on the experience of the worker, so that the alignment condition between the locking hole 21 and the bolt 31 can be known more accurately and clearly, the alignment difficulty is reduced, the time consumed by the worker for repeatedly aligning is reduced, and the alignment efficiency is improved.
As shown in fig. 6, the pin base 3 in this embodiment forms an alignment portion 32, and an alignment area 321 of the alignment portion 32 is a side of the pin base 3 facing the wind wheel locking disk 2. In the embodiment, the bolt seat 3 is directly used as the aligning part 32, other structures do not need to be additionally arranged as the aligning part 32, the integral structure of the wind wheel locking system is simplified, and the working hours of processing and assembling are reduced.
The pin socket 3 in this embodiment is part of the structure in the bearing housing 16. Specifically, the bearing block 16 includes a bearing block body 161 and a pin base 3, the pin base 3 is located at two radial ends of the bearing block 16, the pin base 3 extends from a radial outer side surface of the bearing block body 161 to a radial outer side, and the bearing block body 161 is sleeved on the radial outer side of the rotating shaft 13. The projection of the photosensitive assembly on the alignment part 32 is located at the radial outer side of the bearing seat body 161, so that the photosensitive assembly is ensured not to be blocked by the bearing seat body 161 in the rotating process, and only when the photosensitive assembly rotates to the corresponding position of the alignment part 32, the photosensitive assembly is blocked, and the alignment accuracy of the locking hole 21 and the bolt 31 is ensured.
In other alternative embodiments, pin socket 3 may be attached to bearing housing 16 as a separate structure, or pin socket 3 may be attached directly to the main frame as a separate structure.
In other alternative embodiments, alignment portion 32 may be attached to pin base 3 as a separate structure, or alignment portion 32 may be provided in other areas as a separate structure, but it is desirable to ensure that alignment portion 32 remains stationary with respect to pin base 3. The number of the aligning portions 32 is not limited to one, and may be designed according to actual requirements, for example, two pin bases 3 in the present embodiment may be used as the aligning portions 32.
As shown in fig. 3 and 4, the photosensitive assembly includes two photosensitive elements, a first photosensitive element 41 and a second photosensitive element 42. When the photosensitive assembly reaches the target position, the projections of the first photosensitive element 41 and the second photosensitive element 42 on the alignment portion 32 are respectively located at two edges of the alignment area 321 along the rotation direction of the wind wheel locking disk 2, so that the photosensitive assembly cannot be completely shielded by the alignment area 321 of the alignment portion 32 no matter the wind wheel locking disk 2 rotates incompletely or rotates excessively, the early warning assembly 5 cannot be triggered to send out early warning information, and the alignment difficulty is reduced.
In other alternative embodiments, the number of the photosensitive elements in the photosensitive assembly may be more, but when designing the installation position of the photosensitive elements, it should be at least ensured that when the photosensitive assembly reaches the target position, the projections of at least two photosensitive elements on the alignment portion 32 are respectively located at both edges of the alignment area 321 in the rotation direction of the wind wheel locking disk 2. The projections of the two photosensitive elements on the alignment portion 32 in this embodiment are located at two edges of the alignment area 321 in the rotation direction of the wind wheel locking disk 2, which is the very edge immediately adjacent to the two sides.
As shown in fig. 5, the warning module 5 is connected in series with the plurality of photosensitive elements in the corresponding photosensitive module, so that the warning module 5 in the series circuit can be powered on to send warning information only when all the photosensitive modules are shielded by the alignment area 321 of the alignment portion 32 and the sensed light is weakened to the intensity that the photosensitive modules can work, thereby further reducing the alignment difficulty.
As shown in fig. 5, the first photosensitive element 41 and the second photosensitive element 42 in this embodiment are both photosensitive switches, and the operations and non-operations of the photosensitive element and the photosensitive element in this embodiment refer to the turning on and turning off of the photosensitive switches, and when the photosensitive opening is in the turning on state, the photosensitive element and the photosensitive element are in the operating state, and when the photosensitive opening is in the turning on state, the photosensitive element and the photosensitive element are in the turning off state.
When the projections of the photosensitive switches on the aligning portion 32 are all located in the aligning area 321, the photosensitive switches are closed, only when all the photosensitive switches are closed, a closed loop can be formed, and the early warning component 5 can be powered on to send out early warning information. When at least part of the projection of the photosensitive switch on the alignment portion 32 is located outside the alignment area 321, the photosensitive switch is turned on, the warning component 5 cannot be powered on, and warning information cannot be sent out. This embodiment is through photosensitive switch's closure, open and decide whether can form closed circuit, thereby decide whether early warning subassembly 5 can be circular telegram and send out early warning information, only when photosensitive switch is totally by the condition of aiming at regional 321 of portion 32 and sheltering from, photosensitive switch just can be closed, even photosensitive switch only partly structure does not shelter from by the regional 321 of aiming at of portion 32, photosensitive switch also is in the open mode, thereby can prevent to judge by mistake under the rotatory not-in-place or excessive rotatory condition of photosensitive switch that locking hole 21 and bolt 31 aim at, thereby reduce and aim at the degree of difficulty.
In other alternative embodiments, other structures with photosensitive characteristics may be selected as the photosensitive element, and the selected structure needs to enable the early warning component 5 to send out the early warning information in the case of being completely shielded, and to disable the early warning component 5 to send out the early warning information in the case of not being completely shielded. The multiple photosensitive elements in a photosensitive assembly may be identical or different in structure.
The early warning assembly 5 is preferably detachably connected with the wind wheel locking disc 2 so as to be convenient for maintenance, and the connection method of the early warning assembly 5 and the wind wheel locking disc 2 comprises but is not limited to bonding, screwing, riveting, clamping and the like. Early warning subassembly 5 in this embodiment sets up the outside (not shown in the figure) at wind wheel locking plate 2's locking hole 21, compare in installing early warning subassembly 5 in the inside of locking hole 21, it is more convenient to install early warning subassembly 5 in the outside of locking hole 21, can realize all locking holes 21 and bolt 31 and connect the dismantlement of later carrying out early warning subassembly 5, compare in dismantling early warning subassembly 5 before connecting locking hole 21 and bolt 31, can in time learn whether the position of locking hole 21 and bolt 31 produces the skew in the connection process, thereby improve the reliability of aiming at. In other alternative embodiments, the warning assembly 5 may also be disposed inside the locking hole 21.
The early warning assembly 5 in the embodiment comprises a sound early warning device, the sound early warning device sends out sound to transmit early warning information to workers, the sound early warning device is selected to serve as a structure for transmitting the early warning information, and the workers who rotate the wind wheel can directly judge the alignment condition of the locking hole 21 and the bolt 31 through hearing. In other alternative embodiments, other structures such as a visual alarm may also be selected to send out the warning information, and the sound alarm is selected in this embodiment because the propagation of sound is less affected by the shielding object or the distance, and compared with selecting the visual alarm to transmit information to the worker, it is unnecessary to consider whether the worker can see or see the warning information transmitted by the visual alarm, so that the installation position of the warning component 5 is more flexible, and it is unnecessary to arrange another worker to specially receive the warning information. Meanwhile, staff who rotate the wind wheel can clearly receive early warning information at the first time, the hysteresis quality of information transmission of the staff is reduced, the alignment difficulty is reduced, the number of the staff can be reduced, and the labor cost is reduced.
The sound early warning ware in this embodiment is bee calling organ, and bee calling organ simple structure, the size is little, can install together with photosensitive element and follow the wind wheel rotation on wind wheel locking plate 2, simplifies the wiring degree of difficulty between early warning subassembly 5 and the photosensitive element. The early warning assembly 5 and the photosensitive assembly form an independent simple circuit system, are independent of a main circuit and a control system of the wind generating set, and are simple, convenient, easy to disassemble, low in cost and easy to maintain.
The present embodiment also provides an assembling method of a wind wheel locking system, for assembling the wind wheel locking system, the assembling method of the wind wheel locking system includes the following steps:
aligning the locking hole 21 of the wind wheel locking disc 2 with the bolt 31 of the bolt seat 3;
marking a projection area of the alignment area 321 on the wind wheel locking disk 2;
marking the installation position of the photosensitive component in the projection area;
the photosensitive member is mounted at the mounting position of the marked photosensitive member.
The photosensitive assembly is subjected to installation position determination on the basis of alignment of the locking hole 21 and the bolt 31, so that the locking hole 21 and the bolt 31 are aligned under the condition that the photosensitive assembly is completely shielded by the alignment area 321 of the alignment part 32 when the marked photosensitive assembly is aligned next time, and the alignment difficulty is reduced. Except that the alignment condition of the latch 31 and the locking hole 21 cannot be judged by means of early warning information during the first assembly, the alignment condition of the latch 31 and the locking hole 21 can be always judged by the light-sensitive component without detaching the light-sensitive component from the wind wheel locking disk 2 and changing the position of the alignment part 32 relative to the latch seat 3 during the subsequent wind wheel locking process.
Adopt bee calling organ as sound early warning ware in this embodiment, the structure is little and the equipment is convenient, and comparatively simple and small-size structure can be made to whole early warning subassembly, installs photosensitive element before wind wheel locking disk 2 with photosensitive element on, can connect photosensitive element and early warning subassembly earlier, makes both even install on wind wheel locking disk 2 jointly after as a whole again. In other alternative embodiments, the photosensitive assembly can be mounted on the wind wheel locking disk 2 and then the early warning assembly is mounted, and the space between the photosensitive assembly and the early warning assembly during assembly is larger and the assembly is more convenient by adopting the connection mode.
The embodiment also provides an alignment method for wind wheel locking, which is used for alignment between the locking hole 21 of the wind wheel locking disc 2 and the bolt 31 of the bolt seat 3 by using the wind wheel locking system, and comprises the following steps:
rotating the wind wheel to rotate the photosensitive assembly to a target position;
and when the early warning information sent by the early warning assembly 5 is received, the wind wheel stops rotating.
In the alignment process, the staff is rotatory through the drive wind wheel, and then the drive is installed the photosensitive element rotation on wind wheel locking plate 2, when photosensitive element is rotatory to the target location, locking hole 21 is in the alignment state with bolt 31, the light that photosensitive element experienced weakens to the intensity that can make photosensitive element work, according to photosensitive element's characteristic, early warning subassembly 5 of being connected with photosensitive element electricity can send early warning information, the staff stops rotatory wind wheel immediately after receiving information, connect locking hole 21 through bolt 31.
Example 2
The structure of the wind wheel locking system in this embodiment is substantially the same as that in embodiment 1, except that the photosensitive elements are disposed at different positions.
As shown in fig. 7-9, the diameter of the locking hole 21 of the wind wheel locking disk 2 is larger than the diameter of the latch 31 of the latch base 3, and the alignment of the locking hole 21 and the latch 31 in this embodiment does not mean that the two are aligned centrally, but means that the projection of the latch 31 on the wind wheel locking disk 2 is entirely located in the locking hole 21. That is, the target position corresponding to the photosensitive assembly shall mean a position where the projection of the latch 31 on the wind wheel locking disk 2 is entirely located in the locking hole 21, and the position is not a fixed position, but a region. At this time, when the photosensitive element reaches the target position, compared with the center of the alignment portion 32, projections of the two photosensitive elements on the alignment portion 32 may be respectively close to or located at two edges of the alignment area 321 along the rotation direction of the wind wheel locking disk 2, that is, at least one photosensitive element is still a short distance away from the edge line, so as to prevent the wind wheel from over-rotating due to the lag problem between the time of receiving the warning information and the time of stopping rotating the wind wheel, and further cause the photosensitive element to be switched from the working state to the non-working state, which affects the judgment result of the working person, thereby reducing the situation of repeated alignment, and improving the alignment efficiency.
When the center of the latch 31 is aligned with the center of the locking hole 21, the projections of the first photosensitive element 41 and the second photosensitive element 42 on the alignment portion are respectively close to the two ends of the alignment area 321 in the rotation direction of the wind wheel locking disk 2, that is, in the rotation direction of the wind wheel locking disk, compared with the center of the alignment portion 32, and there is a gap between the projection of the first photosensitive element 41 and the second photosensitive element 42 on the alignment portion and the two edges of the corresponding alignment area 321, and the distances are the same. When the center of the latch 31 is not aligned with the center of the locking hole 21, the projections of the first and second photosensitive elements 41 and 42 on the alignment portion are different from the distance between the two edges of the corresponding alignment region 321.
Specifically, taking the example of clockwise rotation of the wind wheel locking disk 2 (based on that the rotation direction of the wind wheel is clockwise when viewed from the front of the wind turbine generator system, and should be counterclockwise when viewed from fig. 7 and 8), the projection of the latch 31 on the wind wheel locking disk 2 in fig. 7 just rotates into the locking hole 21, and along the rotation direction of the wind wheel locking disk 2, at this time, the projection of the first photosensitive element 41 on the alignment portion 32 is located at the outermost edge of one side of the alignment area 321, and the projection of the second photosensitive element 42 on the alignment portion 32 is close to the outermost edge of the other side of the alignment area 321, that is, there is a gap between the projection of the second photosensitive element 42 on the alignment portion and the edge of the corresponding alignment area 321.
In fig. 8, the wind wheel locking disk 2 is further rotated clockwise compared to the wind wheel locking disk 2 in fig. 7, the center of the locking hole 21 is aligned with the center of the latch 31, and along the rotation direction of the wind wheel locking disk 2, the projections of the first photosensitive element 41 and the second photosensitive element 42 on the alignment portion 32 are respectively close to two edges of the alignment area 321, that is, a gap exists between the projections of the first photosensitive element 41 and the second photosensitive element 42 on the alignment portion 32 and the two edges of the corresponding alignment area 321.
In fig. 9, the wind wheel locking plate 2 is further rotated clockwise compared to the wind wheel locking plate 2 in fig. 8, and the projection of the latch 31 on the wind wheel locking plate 2 is still in the locking hole 21 but is about to be rotated out of the range, when the projection of the first photosensitive element 41 on the alignment portion 32 is close to the extreme edge of one side of the alignment area 321, that is, there is a gap between the projection of the first photosensitive element 41 on the alignment portion and the edge of the corresponding alignment area 321, and the projection of the second photosensitive element on the alignment portion 32 is located at the extreme edge of the other side of the alignment area 321.
In other alternative embodiments, if the number of the photosensitive elements in the photosensitive assembly is multiple, there is a gap between the projection of the two photosensitive elements at the two sides of the photosensitive assembly on the alignment portion and the two edges of the corresponding alignment area 321.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship of the device or element as it is normally used, merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation at any time, unless otherwise indicated herein.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of this invention, and these changes and modifications are within the scope of this invention.

Claims (12)

1. The utility model provides a wind wheel locking system, includes wind wheel locking plate and bolt seat, wind wheel locking plate fixes on the wind wheel and can follow the wind wheel is rotatory, its characterized in that, wind wheel locking system still includes:
an alignment portion having an alignment area, the alignment portion remaining stationary relative to the pin socket;
the photosensitive assembly is arranged on the wind wheel locking disc and rotates along with the wind wheel locking disc, and the photosensitive assembly is positioned on the radial outer side of the locking hole of the wind wheel locking disc; when the photosensitive assembly rotates to a target position, the projections of the photosensitive assembly on the alignment parts are all located in the alignment areas, and the locking holes of the wind wheel locking disk are aligned with the pins of the pin bases;
an early warning assembly electrically connected to the photosensitive assembly, the early warning assembly configured to: when the photosensitive assembly reaches the target position, the early warning assembly can send out early warning information;
when the light sensed by the photosensitive component is weakened to the intensity capable of enabling the photosensitive component to work, the early warning component sends out early warning information;
when the light sensed by the photosensitive assembly is not weakened to the intensity capable of enabling the photosensitive assembly to work, the early warning assembly does not send out early warning information.
2. The wind wheel locking system of claim 1, wherein the photosensitive assembly comprises a plurality of photosensitive elements, and when the photosensitive assembly reaches the target position, the projections of at least two of the photosensitive elements on the alignment portion are respectively close to or located at two edges of the alignment area along the rotation direction of the wind wheel locking disk compared with the center of the alignment portion.
3. The wind turbine locking system according to claim 2, wherein the diameter of the locking hole is larger than the diameter of the latch, and when the center of the latch is aligned with the center of the locking hole, a gap exists between the projection of the two light-sensitive elements on the two outermost sides of the light-sensitive assembly on the alignment portion and the two edges of the corresponding alignment area along the rotation direction of the wind turbine locking disk.
4. The wind rotor locking system of claim 2, wherein the pre-warning assembly is in series with a plurality of the light-sensitive elements in the corresponding light-sensitive assembly.
5. The wind wheel locking system of claim 4, wherein said light sensitive element comprises a light sensitive switch;
when the projection of the photosensitive switch on the alignment part is totally positioned in the alignment area, the photosensitive switch is closed;
when at least part of the projection of the photosensitive switch on the alignment part is positioned outside the alignment area, the photosensitive switch is opened.
6. The wind wheel locking system of claim 1, wherein the pre-warning assembly is disposed outside of the locking holes of the wind wheel locking disk.
7. The wind wheel locking system of claim 1, wherein the warning assembly comprises an audible warning device.
8. The wind turbine locking system of any of claims 1-7, wherein the pin block forms the alignment area, and a side of the pin block facing the wind turbine locking disk is the alignment area.
9. A wind park according to any of claims 1-8, wherein the wind park comprises a rotor locking system.
10. The wind generating set of claim 9, further comprising a bearing housing, the bearing housing comprising a bearing housing body and the pin block extending radially outward from a radially outer side of the bearing housing body, a projection of the photosensitive component on the alignment portion being located radially outward of the bearing housing body.
11. A method of assembling a rotor locking system for assembling a rotor locking system according to any of claims 1-8, comprising the steps of:
aligning the locking hole of the wind wheel locking disc with the bolt of the bolt seat;
marking a projection area of the alignment area on the wind wheel locking disk;
marking the installation position of a photosensitive component in the projection area;
and installing the photosensitive component at the installation position of the marked photosensitive component.
12. An alignment method for wind turbine locking, characterized in that the alignment method utilizes a wind turbine locking system according to any of claims 1-8 for alignment between the locking holes of the wind turbine locking disk and the pins of the pin base, the alignment method comprising the steps of:
rotating a wind wheel to rotate the photosensitive assembly to the target position;
and when the early warning information sent by the early warning assembly is received, the wind wheel stops rotating.
CN202110738844.6A 2021-06-30 2021-06-30 Wind wheel locking system, wind generating set, mounting method and alignment method Active CN113294301B (en)

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