CN109227029A - Field repairing method for wind power plant bearing - Google Patents
Field repairing method for wind power plant bearing Download PDFInfo
- Publication number
- CN109227029A CN109227029A CN201811025212.XA CN201811025212A CN109227029A CN 109227029 A CN109227029 A CN 109227029A CN 201811025212 A CN201811025212 A CN 201811025212A CN 109227029 A CN109227029 A CN 109227029A
- Authority
- CN
- China
- Prior art keywords
- bearing
- stage
- cladding
- equipment
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 76
- 238000005253 cladding Methods 0.000 claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 238000000227 grinding Methods 0.000 claims abstract description 24
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 35
- 239000002184 metal Substances 0.000 claims description 13
- 238000005728 strengthening Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 13
- 238000005498 polishing Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000004079 fireproofing Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000004372 laser cladding Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 21
- 238000005299 abrasion Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 7
- 239000000306 component Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 2
- 108010066114 cabin-2 Proteins 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- 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
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
- F03D1/0662—Arrangements for fixing wind-engaging parts to a hub using kinematic linkage, e.g. tilt
- F03D1/0664—Pitch arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- 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
- F03D80/50—Maintenance or repair
-
- 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
- F03D80/701—Pitch or yaw bearings
-
- 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
- F05B2230/00—Manufacture
- F05B2230/30—Manufacture with deposition of material
-
- 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
- F05B2230/00—Manufacture
- F05B2230/80—Repairing, retrofitting or upgrading methods
-
- 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
- F05B2260/20—Heat transfer, e.g. cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A kind of field repairing method for wind power plant bearing, which comprises the preparation stage clears up the abrading section of the bearing and assess the state of wear of the bearing in the preparation stage；The cladding stage carries out live increasing material manufacturing using abrading section of the increasing material manufacturing equipment to the bearing, obtains the cladding layer for forming metallurgical bonding with the bearing in the cladding stage；The grinding stage carries out the overall size and accuracy class that grinding acquisition meets requirement by the surface to the bearing in the grinding stage；And detection-phase carries out nondestructive inspection detection to the bearing in the detection-phase.By the way that the method achieve the bearings to wind power plant to carry out quick, convenient, efficient field repair.
Description
Technical field
This application involves a kind of field repairing methods for wind power plant bearing.
Background technique
Wind energy is a kind of pole clean energy resource, and the promotion efficiency of wind-power electricity generation is also increasing.The wind that China can develop and use
Can resource very abundant, under the promotion of national policy, by development in 10 years, the wind power generation industry in China was from extensive style
Expansion in quantity, to the direction transformation for improving quality, reducing cost, wind power generation industry enters the new stage of stable sustainable growth.
The projected life average out to 20-25 of one group of wind power plant.However, from the point of view of using result, because using
The problems such as operating condition is severe, the kernel component of wind power plant often because wearing and premature failure, are influencing equipment just
It is often used.
For example, in the course of work of wind power plant, in order to realize that wind wheel can obtain in real time according to the change of wind direction
Maximum wind energy is obtained, needs to adjust the position of wind wheel using yaw system；Meanwhile wind power plant needs during the work time
The angle of blade is adjusted according to the size of wind speed, and then adjusts blade front face area to control revolving speed, this process needs
Pitch-controlled system is realized.
The bearing of pitch-controlled system and yaw system in wind power plant is kernel component, and the gear of bearing is because of length
Phase works in high stress, high-frequency abrasive wear environment, it may appear that is seriously worn.Situ measurements show, are on active service only 8
The gear grinding loss rate in year has reached 40~50%, has seriously affected the normal operation of equipment, and have the risk of broken teeth, thus needs
Replacement and Repair are carried out to the gear of abrasion.
When being repaired to bearing replacing, generally the entire components of abrasion are replaced by tearing machine operation open, need by
The dismantling of complete equipment major part part, maintenance cost are high.Moreover, pitch-controlled system, yaw system are in wind power plant
Top of supply line, in this way, which maintenance cost is high, the duration is also very long, seriously affects the generating efficiency of wind power plant, economy damage
It loses huge.
Currently, for wind power plant bearing temporarily without field repair example, technological difficulties essentially consist in: 1) wind-force
Generating equipment site work environment is poor, and it is aerial that bearing is in hundred meters of height, and narrow space, wants to the field operation of repair process
Ask high；2) there are many on-site electrical equipment, need fully to protect equipment, personnel, require site layout project high；3) wind-force
The shaft strength of generating equipment is ill-conditioned, and stress is very big and stress is frequent, more demanding to repairing effect, the axis after reparation
It holds and needs to be amenable to severe operating condition with higher-strength, do not peel off, while also needing to fully consider the axis being engaged with
The matching property of gear, the Bearing gear after reparation cannot cause big abrasion to shaft gear, and avoid influence shaft gear uses the longevity
Life.
Therefore, it is necessary to a kind of live or online restorative procedures for being easily used for wind power plant bearing.
Summary of the invention
Goal of the invention:
The application's is designed to provide a kind of field repairing method for wind power plant bearing, to realize to wind
The bearing of power generating equipment carries out quick, convenient, efficient field repair.
Technical solution:
Above-mentioned purpose, this method are realized by the field repairing method disclosed in the present application for wind power plant bearing
Include: the preparation stage, in the preparation stage, clears up the abrading section of bearing and the state of wear of bearing is assessed；Cladding
Stage carries out live increasing material manufacturing, acquisition and bearing using abrading section of the increasing material manufacturing equipment to bearing in the cladding stage
Form the cladding layer of metallurgical bonding；In the grinding stage, in the grinding stage, carrying out grinding acquisition satisfaction by the surface to bearing makes
With desired overall size and accuracy class；And detection-phase carries out nondestructive inspection detection to bearing in detection-phase.
This application describes it is a kind of by increasing material manufacturing to wind power plant bearing carry out field repair method,
In, after the gear of wind power plant bearing fails because of long term wear, realized using increases material manufacturing technology to Bearing gear
Size restoration and performance boost.In the preparation stage, the abrasion loss of the Bearing gear of abrasion can be measured, and clear
The greasy dirt and polishing scratch for managing gear surface, make it meet repairing condition.In the cladding stage, it can use dedicated increasing material manufacturing and set
Standby, scene carries out increasing material manufacturing to the gear of abrasion, prepares cladding layer；Increasing material manufacturing equipment can be argon arc soldering equipment, gas is protected
Soldering equipment, plasma melting coating equipment, laser cladding equipment etc..
Field repair in the application includes but is not limited to: 1) according to production engineering specifications, suitable equipment is selected, and
According to field condition, equipment is handled, guarantees that its size, electric condition meet field working conditions；2) Solve on site electricity
Source problem draws available commercial power power supply from wind power plant controller；3) joint connection in site increasing material manufacturing equipment and
Other relevant devices, such as protection gas, wire-feed motor.
It can also include: to cover neighboring area with fire proofing material in the preparation stage about disclosed method；
And/or small-sized ventilation equipment are disposed at the scene of reparation.Before reparation, being arranged to site environment can be more convenient for repairing
It is multiple: to cover neighboring area with fire proofing materials such as fire blankets, including electrical equipment, the ground and the bulkhead that have greasy dirt etc., can prevent
Danger is caused due to catching fire when field repair；Small-sized ventilation equipment are disposed in closed space, guarantee the mobility of live air,
To prevent personnel in small space unsmooth breath.
About disclosed method, in the cladding stage, carrying out material used in live increasing material manufacturing be can be
Grain enhancing Metal Substrate strengthening material.On the one hand, using increases material manufacturing technology, the size of abrased gear can be repaired, makes its satisfaction
Normal with shaft gear engages；On the other hand, using dedicated particulate reinforced metal-based strengthening material, make the gear after repairing
Can be more optimized, meet the condition of long service.
About disclosed method, particulate reinforced metal-based strengthening material can be the weldering of diameter 0.8mm-2.0mm
Silk.In addition, particulate reinforced metal-based strengthening material is also possible to alloy powder.
About disclosed method, in the cladding stage, electric current used in live increasing material manufacturing can be 60A-
250A；The thickness in monolayer of cladding layer can be 0.5mm-3.5mm.
About disclosed method, in the cladding stage, the overlapping rate for forming cladding layer can be 20%-70%.
It generally requires through multiple tracks increasing material manufacturing and forms the cladding layer of certain area, certain thickness is formed by multilayer increasing material manufacturing
Cladding layer, wherein overlapped between multiple tracks, the overlapping rate of 20%-70% can guarantee the good forming of cladding layer.
About disclosed method, the grinding stage may include polishing stage and grinding stage, in which: in polishing rank
Duan Zhong carries out the overall size that polishing acquisition meets requirement by the surface to bearing；In the grinding stage, material will be ground
Material is coated on the surface of bearing, is ground, is met using surface of the engagement between bearing and axis to bearing
The accuracy class of requirement.
Beneficial effect
1) disclosed method is utilized, it can abrasion in the case where not tearing machine open, to wind power plant bearing
Gear carries out field repair.
2) disclosed method can be widely applied to the bearing internal external gear reparation in wind power plant, such as wrap
The slewing bearing of pitch variable bearings and yaw bearing etc. is included, wind power plant power can be 1~8MW, Bearing gear material
Matter can be medium carbon steel material, and module can be 8~20.
3) disclosed method is utilized, the flank of tooth, which repairs size, can achieve 1.0mm-8.0mm, the single monolayer thick of cladding layer
Degree can 0.5-4.0mm, cladding layer hardness can be between HRC30-50；It and is metallurgy between cladding layer and basis material
In conjunction with bond strength can be greater than 500MPa.
4) gear after repairing can satisfy the normal work of wind power plant pitch-controlled system, yaw system.
Detailed description of the invention
Fig. 1 is the schematic diagram of wind power plant and its pitch variable bearings.
Fig. 2 is the schematic diagram of pitch variable bearings gear.
Fig. 3 is the flow chart of pitch variable bearings gear field repair.
Fig. 4 is the schematic diagram of the pitch variable bearings gear after the cladding stage.
Fig. 5 is the schematic diagram of the pitch variable bearings gear after the grinding stage.
Specific embodiment
Fig. 1 is the schematic diagram of wind power plant and its pitch variable bearings.As shown in Figure 1, wind power plant may include
Pylon 1, cabin 2, rotor 3, pitch-controlled system 4 and other structures, such as yaw system (not shown).Wind power plant can lead to
It crosses the rotation of rotor 3 and converts wind energy into electric energy, and the leaf of rotor 3 can be adjusted by pitch-controlled system 4 according to the size of wind speed
The angle of piece adjusts blade front face area to control revolving speed, to improve energy conversion efficiency.
Pitch-controlled system may include pitch variable bearings 41 (hereinafter also referred to as bearing 41) and pitch axis 43 (hereinafter also referred to as
Axis 43), it is distributed with Bearing gear 42 (being shown in the form of ring gear in Fig. 1) on bearing 41, shaft gear 44 is distributed on axis 43.
Bearing gear 42 is engaged with shaft gear 44, and the angle of the blade of rotor 3 is adjusted by the relative rotation of the two.
In the present embodiment, wind power plant power is 1.5MW, active time 8 years, and Bearing gear modulus is
12, the number of teeth 139, material is national standard 42CrMo mild steel material.The Bearing gear 42 of bearing 41 because long-term work high stress,
In high-frequency abrasive wear environment, it is seriously worn.
Fig. 2 is the schematic diagram of the Bearing gear 42 of pitch variable bearings 41, wherein schematically showing the wear of Bearing gear 42
Position 421.As shown in Fig. 2, only 8 years Bearing gears 42 of being on active service are seriously worn, formed in Bearing gear 42 be in pit pattern mill
Damage position 421.In the present embodiment, 42 maximum wear rate of Bearing gear reaches 35%, lopsided wear 2mm.In other embodiments
In, 42 wear rate of Bearing gear is likely to be breached 40~50%.This has seriously affected the normal operation of wind power plant, and has
The risk of broken teeth needs to carry out field repair.
Fig. 3 is the flow chart of 42 field repair of Bearing gear of pitch variable bearings 41.
As shown in figure 3, firstly, clearing up the abrading section 421 of Bearing gear 42 and to Bearing gear 42 in the preparation stage
State of wear assessed (step S1).For example, can the abrasion loss of abrading section 421 to Bearing gear 42 survey
Amount, and greasy dirt, corrosion and the polishing scratch etc. for clearing up 42 surface of Bearing gear, make it meet repairing condition.
Then, in the cladding stage, live increasing is carried out using abrading section 421 of the increasing material manufacturing equipment to Bearing gear 42
Material manufacture, obtains the cladding layer 422 (step S2) that metallurgical bonding is formed with Bearing gear 42.In the present embodiment, using dioxy
Change carbon gas shielded arc welding (abbreviation gas shield welding) and carry out live increasing material manufacturing reparation, technological parameter is voltage 25V, electric current 110A；Weldering
Silk is diameter 1.6mm alloy welding wire, and material is particulate reinforced metal-based strengthening material；Increasing material manufacturing layer (i.e. cladding layer) single monolayer thick
Degree is 2mm.
The cladding layer for needing to be formed certain area by multiple tracks increasing material manufacturing is formed certain by multilayer increasing material manufacturing
The cladding layer of thickness is wherein overlapped between multiple tracks.Overlapping rate it is excessive or it is too small all cladding layer forming quality can be caused poor, shadow
Ring repairing effect.In the present embodiment, overlapping rate 50% ensure that the good forming of cladding layer.
Fig. 4 is the schematic diagram of the Bearing gear 42 of the pitch variable bearings 41 after the cladding stage.As seen from Figure 4, pass through
The cladding layer 422 that live increasing material manufacturing is formed is filled with the abrading section 421 of Bearing gear 42.
Then, in the grinding stage, the wheel that grinding acquisition meets requirement is carried out by the surface to Bearing gear 42
Wide size and accuracy class (step S3).The grinding stage may include polishing stage and grinding stage, in which: in the polishing stage
In, the overall size that polishing acquisition meets requirement is carried out by the surface to Bearing gear 42；In the grinding stage, it will grind
Mill material is coated on the surface of Bearing gear 42, using the engagement between Bearing gear 42 and shaft gear 44 to bearing gear
The surface of wheel 42 is ground, and the accuracy class for meeting requirement is obtained.
Fig. 5 is the schematic diagram of the Bearing gear 42 of the pitch variable bearings 41 after the grinding stage.As seen from Figure 4, pass through
The grinding stage obtains the cladding layer 422 ' with intended shape profile, has restored the size and precision of Bearing gear 42, has made it
Satisfaction is engaged with the normal of shaft gear 44.
Finally, carrying out nondestructive inspection detection (step S4) to Bearing gear 42 in detection-phase.Testing result shows,
42 surface flawless of Bearing gear after field repair, meets requirement.
Metallographic Analysis is the results show that the cladding layer group for passing through the available metal-base particles enhancing of above-mentioned on-site procedure for repairing
It knits, in a large amount of micron particles carbide particles of martensitic matrix tissue Dispersed precipitate, average hardness value reaches HRC43.
Such tissue can have excellent wearability, toughness, while have good matching property between shaft gear 44, can be effectively
Slow down the abrasion of the size flank of tooth.
Friction-wear test sufficiently demonstrates this point.Table 1 shows high-speed loop block friction-wear test data.Wherein:
Test specimen is accompanied to be made of shaft gear material 17CrNiMo6, condition of heat treatment is quenching state, hardness HRC60-62；
Sample A -1 includes cladding layer and matrix, and cladding layer passes through carries out cladding shape using self-control welding wire H16 on matrix
At the material of matrix is Bearing gear material 42CrMo, and the material of welding wire H16 is particulate reinforced metal-based strengthening material, cladding
Layer condition of heat treatment is as-welded, hardness HRC47；
Sample B -1 includes cladding layer and matrix, and cladding layer passes through carries out cladding shape using self-control welding wire H17 on matrix
At the material of matrix is Bearing gear material 42CrMo, and the material of welding wire H17 is particulate reinforced metal-based strengthening material, cladding
Layer condition of heat treatment is as-welded, hardness HRC42；
Sample O-1 is made of Bearing gear material 42CrMo, and condition of heat treatment is modifier treatment, and sample hardness is HRC35；
Tribological condition in experimental condition simulation actual use, measurement test the sample of front and back and test specimen net weight are accompanied to go forward side by side
Row compares.
In terms of the weightlessness of test front and back, preferred embodiment B-1, abrasion (weightlessness) amount is minimum, reaches 0.102g, is lower than bearing
The abrasion loss of gear substrate shows that the Bearing gear wearability after repairing is good；Accompany the weightlessness of test specimen also minimum, only 0.004g,
It is close with the data of O-1 scheme simultaneously, show that repairing front and back shaft gear is barely affected, the Bearing gear after reparation and axis tooth
Matching property between wheel is good.
Table 1
Field repair in the application refers to that scene carries out Bearing gear 42 in cabin 2 in the case where not tearing machine open
Repair, including but not limited to: 1) according to production engineering specifications, select suitable equipment, and according to field condition, to equipment into
Row processing, guarantees that its size, electric condition meet field working conditions；2) Solve on site power issue, from wind power plant
Available commercial power power supply is drawn in controller；3) joint connection in site increasing material manufacturing equipment and other relevant devices, such as protection gas,
Wire-feed motor etc..
It in another embodiment, can also include: to cover neighboring area with fire proofing material in the preparation stage；And/or
Small-sized ventilation equipment are disposed at the scene of reparation.Before reparation, being arranged to site environment can be more convenient for repairing: use
The fire proofing materials such as fire blanket cover neighboring area, including electrical equipment, the ground and the bulkhead that have greasy dirt etc., can prevent scene from repairing
Danger is caused due to catching fire when multiple；Small-sized ventilation equipment are disposed in closed space, guarantee the mobility of live air, to prevent people
Member's unsmooth breath in small space.
Although live increasing material manufacturing is carried out using gas shield welding equipment in the above-described embodiments, to wind power plant bearing
The increasing material manufacturing equipment for carrying out field repair is without being limited thereto.For example, can use argon arc soldering equipment, gas shield welding equipment, plasma
Cladding equipment, laser cladding equipment etc. carry out field repair, and wherein repair process and the above process are almost the same, but technique is joined
Number, protective gas, cladding material etc. can change.
Although in the above-described embodiments, particulate reinforced metal-based strengthening material is diameter 1.6mm alloy welding wire, it is not limited to
This.For example, particulate reinforced metal-based strengthening material can be the welding wire of diameter 0.8mm-2.0mm.In addition it is also possible to use alloy
The particulate reinforced metal-based strengthening material of powder type.
Although in the above-described embodiments, the electric current of live increasing material manufacturing be 110A, cladding layer with a thickness of 2mm, it is unlimited
In this.According to the increasing material manufacturing equipment utilized, electric current used in live increasing material manufacturing can be 60A-250A；The list of cladding layer
Thickness degree can be 0.5mm-4.0mm.
The flank of tooth, which repairs size, can achieve 1.0mm-8.0mm, and cladding layer hardness can be between HRC30-50；And cladding
It is metallurgical bonding between layer and basis material, bond strength can be greater than 500MPa.
Although the overlapping rate of cladding layer is 40% in the above-described embodiments, in the cladding stage, but not limited to this.For example,
The overlapping rate for forming cladding layer can be 20%-70%.
Although in the above-described embodiments, disclosed method is applied to the wind power plant of 1.5MW, unlimited
In this.Wind power plant using disclosed method can be 1~8MW.In addition, the pitch variable bearings gear repaired
Module can be 8~20.
In addition to pitch variable bearings, disclosed method can also be applied to other core components in wind power plant
Field repair, the including but not limited to frayed component of the bearing of yaw system and other The book of Changes.The material of component to be repaired
Matter can be any material, such as structural alloy steel, bearing steel etc. suitable for applying in wind power plant, and be not limited to
State medium carbon steel described in embodiment.
Claims (9)
1. a kind of field repairing method for wind power plant bearing, which comprises
Preparation stage, in the preparation stage, clear up the abrading section of the bearing and to the state of wear of the bearing into
Row assessment；
The cladding stage carries out live increasing using abrading section of the increasing material manufacturing equipment to the bearing in the cladding stage
Material manufacture, obtains the cladding layer that metallurgical bonding is formed with the bearing；
The grinding stage carries out grinding acquisition by the surface to the bearing and meets requirement in the grinding stage
Overall size and accuracy class；And
Detection-phase carries out nondestructive inspection detection to the bearing in the detection-phase.
2. according to the method described in claim 1, further including at least one in the following steps in the preparation stage wherein
A step:
Neighboring area is covered with fire proofing material；
Small-sized ventilation equipment are disposed at the scene of reparation.
3. method according to claim 1 or 2, wherein in the cladding stage, carry out used in live increasing material manufacturing
Material is particulate reinforced metal-based strengthening material.
4. according to the method described in claim 3, wherein, the particulate reinforced metal-based strengthening material is diameter 0.8mm-
The welding wire of 2.0mm.
5. according to the method described in claim 3, wherein, the particulate reinforced metal-based strengthening material is dusty material.
6. method according to claim 1 or 2, wherein in the cladding stage, the increasing material manufacturing equipment is selected from such as
The set of lower equipment composition: argon arc soldering equipment, gas shield welding equipment, plasma melting coating equipment and laser cladding equipment.
7. method according to claim 1 or 2, wherein in the cladding stage, used in the scene increasing material manufacturing
Electric current is 60A-250A；The thickness in monolayer of the cladding layer is 0.5mm-3.5mm.
8. method according to claim 1 or 2, wherein in the cladding stage, form the overlapping rate of the cladding layer
For 20%-70%.
9. method according to claim 1 or 2, wherein the grinding stage includes polishing stage and grinding stage,
In:
In the polishing stage, the overall size that polishing acquisition meets requirement is carried out by the surface to the bearing；
In the grinding stage, grinding-material is coated on the surface of the bearing, using between the bearing and axis
Engagement grinds the surface of the bearing, obtains the accuracy class for meeting requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025212.XA CN109227029A (en) | 2018-09-04 | 2018-09-04 | Field repairing method for wind power plant bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025212.XA CN109227029A (en) | 2018-09-04 | 2018-09-04 | Field repairing method for wind power plant bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109227029A true CN109227029A (en) | 2019-01-18 |
Family
ID=65060531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811025212.XA Pending CN109227029A (en) | 2018-09-04 | 2018-09-04 | Field repairing method for wind power plant bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109227029A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633374A (en) * | 2020-06-01 | 2020-09-08 | 湖北三江航天江北机械工程有限公司 | Method for repairing damage inside attitude control engine combustion chamber shell |
| CN113249718A (en) * | 2021-05-13 | 2021-08-13 | 清华大学 | Laser cladding method of 42CrMo gear ring and 42CrMo gear ring |
| EP4361432A1 (en) * | 2022-10-24 | 2024-05-01 | Deutsche Windtechnik X-Service GmbH | Method for maintaining and/or repairing a wind turbine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212937A (en) * | 2013-04-24 | 2013-07-24 | 莱芜钢铁集团有限公司 | On-line overlaying welding fan journal repairing method |
| CN103464964A (en) * | 2013-09-26 | 2013-12-25 | 常熟市淼泉压缩机配件有限公司 | Repair process of screw rod compressor rotor |
| CN104070269A (en) * | 2014-07-26 | 2014-10-01 | 河北瑞兆激光再制造技术有限公司 | Repair method for worn central disc of main exhauster in sintering plant |
| CN104723015A (en) * | 2015-03-02 | 2015-06-24 | 山东能源重型装备制造集团有限责任公司 | Remanufacturing method for mining-use wasted scraper blade |
| CN107740096A (en) * | 2017-11-20 | 2018-02-27 | 成都大陆激光技术有限公司 | Casing laser repair system and restorative procedure |
-
2018
- 2018-09-04 CN CN201811025212.XA patent/CN109227029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212937A (en) * | 2013-04-24 | 2013-07-24 | 莱芜钢铁集团有限公司 | On-line overlaying welding fan journal repairing method |
| CN103464964A (en) * | 2013-09-26 | 2013-12-25 | 常熟市淼泉压缩机配件有限公司 | Repair process of screw rod compressor rotor |
| CN104070269A (en) * | 2014-07-26 | 2014-10-01 | 河北瑞兆激光再制造技术有限公司 | Repair method for worn central disc of main exhauster in sintering plant |
| CN104723015A (en) * | 2015-03-02 | 2015-06-24 | 山东能源重型装备制造集团有限责任公司 | Remanufacturing method for mining-use wasted scraper blade |
| CN107740096A (en) * | 2017-11-20 | 2018-02-27 | 成都大陆激光技术有限公司 | Casing laser repair system and restorative procedure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633374A (en) * | 2020-06-01 | 2020-09-08 | 湖北三江航天江北机械工程有限公司 | Method for repairing damage inside attitude control engine combustion chamber shell |
| CN113249718A (en) * | 2021-05-13 | 2021-08-13 | 清华大学 | Laser cladding method of 42CrMo gear ring and 42CrMo gear ring |
| EP4361432A1 (en) * | 2022-10-24 | 2024-05-01 | Deutsche Windtechnik X-Service GmbH | Method for maintaining and/or repairing a wind turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109227029A (en) | Field repairing method for wind power plant bearing | |
| CN104532233B (en) | Rotor axle position laser melting coating restorative procedure | |
| US20070111119A1 (en) | Method for repairing gas turbine engine compressor components | |
| CN105349995B (en) | Laser-cladding cobalt-base alloy powder and repairing method for repairing damaged expander blade | |
| CN101797676B (en) | Repair and surface protection process of desulfuration recycle pump | |
| CN103352221B (en) | High speed rotating machinery axle laser cladding repair alloy powder and repair method | |
| US20060219329A1 (en) | Repair nickel-based superalloy and methods for refurbishment of gas turbine components | |
| CN109706449A (en) | A kind of coating material and process for repairing main bearing of shield machine | |
| CN108707894A (en) | Powder and process used in a kind of laser melting coating self-lubricating abrasion-resistant cobalt-base alloys | |
| CN109468572B (en) | Method for preparing coating by thermal spraying/laser composite additive remanufacturing system | |
| CN108620809B (en) | Online repair method for steam seal shaft neck of steam turbine rotor of 1000MW generator set | |
| CN104722893A (en) | Method for preparing wear-resistant coating based on overlay welding and argon shielded arc cladding | |
| CN102218638A (en) | Process method for repairing gas turbine vanes by micro-arc deposition coating | |
| CN103817320A (en) | Cobalt-based composite powder used for restoring rack of rolling mill and method for restoring rack of rolling mill | |
| CN112063934A (en) | Laser cladding iron-based alloy powder for repairing steam turbine rotor shaft neck, and preparation and application thereof | |
| Chhetry et al. | Effect of sand erosion on turbine components: A case study of kali gandaki “a” hydroelectric project (144 mw), nepal | |
| CN106435565A (en) | Iron-based alloy powder for laser refabrication of rotor journal, and refabrication method thereof | |
| CN104308451A (en) | Speed reducer bearing block repair method | |
| CN107419262B (en) | Universal express pump gear shaft terminal odontotripsis or crackle laser melting coating restorative procedure | |
| CN104637552A (en) | Reactor claw-link mechanism and manufacturing method thereof | |
| CN101705487A (en) | Method for preparing reignition turbine first-stage work bladetip wear-resistant coating | |
| CN1392023A (en) | Laser profile repairing process for damaged blade of smoke gas turbine | |
| CN105506505B (en) | Laser cladding Fe-base alloy powder for repairing damaged axial flow fan blade and repairing method | |
| CN104109858A (en) | Profiling repair method of abraded blade tip of rotor blade of gas compressor | |
| US8089028B2 (en) | Methods for repairing gas turbine engine knife edge seals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |