CN115549404B - Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator - Google Patents
Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator Download PDFInfo
- Publication number
- CN115549404B CN115549404B CN202211166979.0A CN202211166979A CN115549404B CN 115549404 B CN115549404 B CN 115549404B CN 202211166979 A CN202211166979 A CN 202211166979A CN 115549404 B CN115549404 B CN 115549404B
- Authority
- CN
- China
- Prior art keywords
- rotor
- inspection device
- supporting seat
- servo motor
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003384 imaging method Methods 0.000 title claims description 8
- 238000012423 maintenance Methods 0.000 title description 5
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a hydro-generator stator-rotor camera inspection device and a hydro-generator overhauling method, wherein the device comprises an annular track and a circumferential moving device, transmission teeth are constructed on the outer circumferential surface of the annular track, the circumferential moving device comprises a supporting seat, the bottom of the supporting seat is fixedly connected with four groups of roller assemblies, and the four groups of roller assemblies form stable rolling connection with the annular track; the first servo motor is fixedly installed on the supporting seat, the driving gear installed on the rotating shaft of the first servo motor is meshed with the transmission gear, the second servo motor is fixedly installed on the supporting seat, the winch and the take-up reel are connected to the rotating shaft of the second servo motor, the two supporting arms are further connected to the supporting seat, the vertical track assembly is hinged to the supporting arms, and the camera shooting inspection device is connected to the vertical track assembly in a sliding mode. The device provided by the invention realizes the movement and control in the circumferential direction and the vertical direction, and realizes the purpose of checking the stator, the rotor and related accessory equipment of the large-sized hydraulic generator under the condition that the rotor is not lifted out.
Description
Technical Field
The invention belongs to the technical field of hydraulic turbine overhaul, and particularly relates to a hydraulic generator stator and rotor camera shooting inspection device and a hydraulic generator overhaul method.
Background
The hydro-generator is used as the heart of the hydroelectric power station, and the quality of the output electric energy and the safe operation of the power station are related, so that the overhaul and maintenance work is required to be carried out regularly. The stator and rotor of the generator are inspected, the rotor is required to be lifted out of the stator bore in the traditional overhaul process, great potential safety hazards exist in the hoisting process, a large amount of manpower and material resources are required to be consumed in the inspection process, the inspection period is long, the inspection efficiency is low, the inspection quality is limited by the professional skill level of operators, and the full guarantee cannot be obtained.
In the traditional large-scale hydro-generator bore inspection method, a rotor is lifted out, an inspection platform is erected in a stator bore, inspection and evaluation are performed manually and visually point by point, the construction period is long, the consumption of inspection resources is high, and the production stoppage loss caused by an inspection room is also quite large. In order to improve the inspection efficiency of the large-sized hydraulic generator, improve the maintenance quality and reduce the resource investment, specialized inspection technology is required to be continuously introduced, and the automatic inspection of the non-lifting rotor is realized by researching and developing a special device for inspecting the generator. At present, no automatic inspection device for the inner bore of the generator for realizing the functions exists in the domestic market.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a camera shooting inspection device for a stator and a rotor of a hydraulic generator, which realizes the movement and control in the circumferential direction and the vertical direction and realizes the purpose of inspecting the stator, the rotor and related accessory equipment of the large hydraulic generator under the condition that the rotor is not lifted out.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a hydro-generator stator rotor inspection device that makes a video recording, it includes:
the annular rail is provided with transmission teeth on the outer peripheral surface; the circumferential moving device comprises a supporting seat, four groups of roller assemblies are fixedly connected to the bottom of the supporting seat, and the four groups of roller assemblies and the annular track form stable rolling connection; the first servo motor is fixedly arranged on the supporting seat, a driving gear arranged on a rotating shaft of the first servo motor is meshed with the transmission gear, the second servo motor is fixedly arranged on the supporting seat, and a winch and a take-up reel are connected to the rotating shaft of the second servo motor;
the support seat is further connected with two support arms, the support arms are hinged with a vertical track assembly, the vertical track assembly is connected with a camera shooting inspection device in a sliding mode, a steel wire rope is wound on the winch, the free end of the steel wire rope is connected with the camera shooting inspection device, and the take-up reel is used for winding a cable of the camera shooting inspection device.
Preferably, the camera shooting inspection device comprises a sliding block, wherein two ends of the sliding block are connected with rollers, and the rollers are embedded in the vertical track assembly; the sliding block is internally provided with a cavity, the cavity of the sliding block is internally connected with two groups of vertical camera mounting plates and one group of horizontal camera mounting plates, cameras are mounted on the vertical camera mounting plates and the horizontal camera mounting plates, and illuminating lamps are further mounted on the vertical camera mounting plates and the horizontal camera mounting plates.
Preferably, the vertical track assembly comprises two parallel sliding rails, and the end parts of the two sliding rails are connected through a cross rod.
Preferably, each group of roller assemblies comprises an upper roller connected to the bottom of the supporting seat through a supporting column and a lower roller attached to the lower surface of the annular track; and the universal ball is arranged in the roller wheel assembly on the inner peripheral surface of the annular track, and is abutted with the inner peripheral surface of the annular track.
Preferably, the support seat is further rotatably provided with two driven gears, the two driven gears are meshed with the transmission teeth, and the two driven gears are respectively located on two sides of the driving gear.
Preferably, the supporting seat is connected with the box body, a system power supply is arranged in the box body, an image acquisition computer is arranged in the box body, the image acquisition computer is connected with the camera shooting inspection device, and a display screen is arranged at the top of the box body.
Preferably, the vertical track assembly further comprises a connecting block detachably connected to the middle of the sliding rail, and the connecting block is used for rapidly disassembling and assembling the track assembly.
The invention also provides a hydraulic generator overhauling method, the hydraulic generator stator and rotor shooting inspection device is used, the annular track is arranged on a rotor yoke of the hydraulic generator under the condition that a rotor is not lifted out, the first servo motor is controlled to enable the circumferential movement device to move circumferentially, the second servo motor is controlled to enable the shooting inspection device to move up and down, and therefore the hydraulic generator rotor, the stator and accessory parts thereof are shot and inspected.
Compared with the prior art, the invention has the following beneficial effects:
1. the camera inspection device for the stator and the rotor of the hydraulic generator provided by the invention has the advantages of small volume and light weight, realizes the movement and control in the circumferential direction and the vertical direction, and realizes the purpose of inspecting the stator, the rotor and related accessory equipment of the large hydraulic generator under the condition that the rotor is not lifted out.
2. The imaging inspection device for the stator and the rotor of the hydraulic generator provided by the invention has the advantages that the auxiliary work is less when the rotor and the stator of the hydraulic generator are inspected, the rotor does not need to be lifted out, the inspection efficiency is high, and the inspection difficulty is reduced, so that the inspection period can be shortened according to the operation plan of the power station, and the imaging inspection device has an important role in improving the safe operation of the hydraulic power station.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a circumferential moving device in the present invention.
Fig. 3 is an enlarged schematic view of the portion a in fig. 1.
Fig. 4 is a schematic diagram of the structure of the image pickup inspection apparatus according to the present invention.
Fig. 5 is a schematic structural diagram of a roller assembly according to the present invention.
Fig. 6 is a schematic view of a part of an enlarged structure of the roller assembly according to the present invention.
In the above figures: 10. an endless track; 11. a drive tooth; 20. a circumferential movement device; 21. a support base; 22. a roller assembly; 23. a first servo motor; 24. a drive gear; 25. a second servo motor; 26. a winch; 27. a take-up reel; 28. a support arm; 30. a vertical rail assembly; 31. a slide rail; 32. a cross bar; 33. a connecting block; 40. an image pickup inspection device; 41. a sliding block; 42. a roller; 43. a cavity; 44. a vertical camera mounting plate; 45. a horizontal camera mounting plate; 46. a camera; 47. a lighting lamp; 48. a support column; 49. an upper roller; 50. a lower roller; 51. a universal ball; 52. a driven gear; 60. a case; 61. a system power supply; 62. an image acquisition computer; 63. a display screen; 70. a magnetic base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The gap between stator and rotor of hydraulic generator is a safe distance between stator and rotor, so to provide higher excitation strength, the gap is very narrow, for example, the diameter of rotor is about 18 m, the height is about 3 m, however, the gap between stator and rotor is only about 30mm. The inspection work of stator and rotor is extremely difficult to accomplish in such long and thin narrow and small space, and the traditional mode is that after lifting out the rotor, inspection personnel enter into the stator and carry out manual inspection, and on the one hand the auxiliary link of maintenance is more to need to lift out the rotor, the degree of difficulty is great, still has great potential safety hazard, and on the other hand the equipment precision requirement is higher when finishing the inspection again, seriously influences the production operation of hydroelectric power plant.
Based on this, the present invention provides a preferred embodiment, and this embodiment provides a hydro-generator stator-rotor camera inspection device, referring to fig. 1-6, comprising:
the annular rail 10, on the outer peripheral surface of which transmission teeth 11 are constructed; the circumferential movement device 20, wherein the circumferential movement device 20 comprises a supporting seat 21, four groups of roller assemblies 22 are fixedly connected to the bottom of the supporting seat 21, and the four groups of roller assemblies 22 and the annular track 10 form stable rolling connection; the first servo motor 23 is fixedly arranged on the supporting seat 21, the driving gear 24 arranged on the rotating shaft of the first servo motor 23 is meshed with the transmission gear 11, the second servo motor 25 is fixedly arranged on the supporting seat 21, and the rotating shaft of the second servo motor 25 is connected with the winch 26 and the take-up reel 27;
the two support arms 28 are further connected to the support base 21, the vertical track assembly 30 is hinged to the support arms 28, the camera shooting inspection device 40 is connected to the vertical track assembly 30 in a sliding mode, a steel wire rope is wound on the winch 26, the free end of the steel wire rope is connected with the camera shooting inspection device 40, the take-up reel 27 is used for winding a cable of the camera shooting inspection device 40, the wire diameter of the steel wire rope is far smaller than that of a camera cable, so that the camera cable is loosened in the process of taking up and paying off, tension is not born, the camera shooting inspection device 40 moves up and down under the force of the steel wire rope, meanwhile, the fact that the take-up length is in direct proportion to the rotation angle is guaranteed, the loss of synchronization due to the fact that the diameter of the take-up reel is increased due to superposition of the cable is avoided, and the fact that the rotation angle of a motor is in direct proportion to up and down displacement of a trolley is guaranteed.
In the above embodiment, the vertical track assembly 30 includes two parallel slide rails 31, the rigidity of the slide rails 31 is high, so that the camera inspection device 40 is prevented from shaking back and forth and left and right, the camera viewing distance is always kept stable, reliable fixed focus shooting inspection is realized, and the ends of the two slide rails 31 are connected through the cross bar 32; the camera inspection device 40 comprises a sliding block 41, wherein two ends of the sliding block 41 are connected with rollers 42, and the rollers 42 are embedded in the vertical track assembly 30; the sliding block 41 is internally provided with a cavity 43, the cavity 43 of the sliding block 41 is connected with two groups of vertical camera mounting plates 44 and one group of horizontal camera mounting plates 45, cameras 46 are respectively arranged on the vertical camera mounting plates 44 and the horizontal camera mounting plates 45, and illuminating lamps 47 are also arranged on the vertical camera mounting plates 44 and the horizontal camera mounting plates 45.
In order to realize accurate walking, an encoder is arranged on the rotating shaft of the first servo motor 23, the rotating angle of the first servo motor 23 is recorded, and the first servo motor 23 is transmitted to the transmission gear 11, so that no accumulated error is generated.
In some preferred embodiments, each group of the roller assemblies 22 comprises an upper roller 49 connected to the bottom of the supporting seat 21 through a supporting column 48 and a lower roller 50 attached to the lower surface of the circular track 10; in the roller assembly 22 located on the inner peripheral surface of the annular track 10, a universal ball 51 is further mounted on the support column, and the universal ball 51 abuts against the inner peripheral surface of the annular track 10.
In some preferred embodiments, two driven gears 52 are rotatably mounted on the support 21, and the two driven gears 52 are meshed with the driving gear 11, and the two driven gears 52 are respectively located on two sides of the driving gear 24.
In some preferred embodiments, the supporting seat 21 is connected with a box 60, a system power supply 61 is arranged in the box 60, the system power supply 61 provides power for the first servo motor 23, the second servo motor 25, the camera 46 and the illuminating lamp 47, an image acquisition computer 62 is installed in the box 60, the image acquisition computer 52 is connected with the camera inspection device 40, a display screen 63 is installed at the top of the box 60, a visual controller is integrated in the image acquisition computer 62, a desktop-level intel sixth-generation SkyLake architecture CPU is carried, and the image is processed by adopting a SURF algorithm to obtain panoramic spliced image data.
The vertical track assembly 30 further comprises a connecting block 33 detachably connected to the middle of the sliding rail 31, and the connecting block 33 is used for quickly assembling and disassembling the track assembly 30, so that the vertical track assembly with the length exceeding 3 meters can be conveniently arranged in a narrow air gap, and meanwhile, the length of the vertical track assembly can be modified according to the heights of stators and rotors of different generator sets as required.
In the hydraulic generator inspection method, the hydraulic generator stator and rotor imaging inspection device in the above embodiment is used, the annular rail 10 is mounted on a rotor yoke of the hydraulic generator without lifting the rotor, the first servo motor 23 is controlled to move circumferentially by the circumferential movement device, and the second servo motor 25 is controlled to move up and down by the imaging inspection device 40, so that the hydraulic generator rotor, the stator and the accessory parts thereof are imaged and inspected.
In another preferred embodiment, the bottom of the annular rail 10 is connected with a plurality of magnetic seats 70, and when in use, the annular rail 10 can be quickly and fixedly connected with the magnet yoke of the rotor of the hydraulic generator through the magnetic seats 70, and after the inspection is finished, the annular rail can be quickly removed without damaging the rotor.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a hydro-generator stator/rotor inspection device that makes a video recording which characterized in that, it includes:
the annular rail is provided with transmission teeth on the outer peripheral surface; the circumferential moving device comprises a supporting seat, four groups of roller assemblies are fixedly connected to the bottom of the supporting seat, and the four groups of roller assemblies and the annular track form stable rolling connection; the first servo motor is fixedly arranged on the supporting seat, a driving gear arranged on a rotating shaft of the first servo motor is meshed with the transmission gear, the second servo motor is fixedly arranged on the supporting seat, and a winch and a take-up reel are connected to the rotating shaft of the second servo motor;
the support seat is also connected with two support arms, the support arms are hinged with a vertical track assembly, the vertical track assembly is connected with a camera shooting inspection device in a sliding manner, a steel wire rope is wound on the winch, the free end of the steel wire rope is connected with the camera shooting inspection device, and the take-up reel is used for winding a cable of the camera shooting inspection device;
the camera shooting inspection device comprises a sliding block, wherein two ends of the sliding block are connected with rollers, and the rollers are embedded in the vertical track assembly; the sliding block is internally provided with a cavity, the cavity of the sliding block is internally connected with two groups of vertical camera mounting plates and one group of horizontal camera mounting plates, cameras are arranged on the vertical camera mounting plates and the horizontal camera mounting plates, and illuminating lamps are also arranged on the vertical camera mounting plates and the horizontal camera mounting plates;
the vertical track assembly comprises two slide rails which are arranged in parallel, and the end parts of the two slide rails are connected through a cross rod;
each group of roller assemblies comprises an upper roller connected to the bottom of the supporting seat through a supporting column and a lower roller attached to the lower surface of the annular track; the roller assembly is positioned on the inner peripheral surface of the annular track, and the supporting column is also provided with a universal ball which is abutted with the inner peripheral surface of the annular track;
and the two driven gears are rotatably arranged on the supporting seat and meshed with the transmission teeth, and the two driven gears are respectively positioned on two sides of the driving gear.
2. The hydro-generator stator-rotor imaging inspection device according to claim 1, wherein: the box is connected to the supporting seat, a system power supply is arranged in the box, an image acquisition computer is installed in the box and connected with a camera shooting inspection device, and a display screen is installed at the top of the box.
3. The hydro-generator stator-rotor imaging inspection device according to claim 1, wherein: the vertical track assembly further comprises a connecting block detachably connected to the middle of the sliding rail, and the connecting block is used for rapidly disassembling and assembling the track assembly.
4. The hydraulic generator overhauling method is characterized by comprising the following steps of: a camera inspection device for stator and rotor of hydraulic generator according to any one of claims 1-3, wherein the annular track is mounted on the rotor yoke of hydraulic generator without lifting rotor, the first servo motor is controlled to move circumferentially the circumferential moving device, and the second servo motor is controlled to move up and down, so as to perform camera inspection on the hydraulic generator rotor, stator and its accessories.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211166979.0A CN115549404B (en) | 2022-09-23 | 2022-09-23 | Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211166979.0A CN115549404B (en) | 2022-09-23 | 2022-09-23 | Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115549404A CN115549404A (en) | 2022-12-30 |
| CN115549404B true CN115549404B (en) | 2023-11-21 |
Family
ID=84730206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211166979.0A Active CN115549404B (en) | 2022-09-23 | 2022-09-23 | Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115549404B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116545186B (en) * | 2023-04-25 | 2024-03-29 | 中国长江电力股份有限公司 | Annular sliding rail car operation vehicle for overhauling generator stator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101474996B1 (en) * | 2014-08-22 | 2014-12-22 | 주식회사 아이티아이씨앤씨 | Monitoring camera apparatus using solar energy |
| CN208586027U (en) * | 2018-06-27 | 2019-03-08 | 中国长江电力股份有限公司 | A kind of large-sized water turbine generator stator bar maintenance lifting working platform |
| CN113270982A (en) * | 2021-04-27 | 2021-08-17 | 湖南省水利投地方电力有限公司 | Vertical hydraulic generator rotor installation and maintenance device |
| CN113315318A (en) * | 2021-05-11 | 2021-08-27 | 中国长江电力股份有限公司 | Inspection device and inspection method suitable for large-scale hydraulic generator stator and rotor |
| CN114813197A (en) * | 2022-06-24 | 2022-07-29 | 湖南大学 | Overhauling device and method for ultrathin suspension type vertical generator |
-
2022
- 2022-09-23 CN CN202211166979.0A patent/CN115549404B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101474996B1 (en) * | 2014-08-22 | 2014-12-22 | 주식회사 아이티아이씨앤씨 | Monitoring camera apparatus using solar energy |
| CN208586027U (en) * | 2018-06-27 | 2019-03-08 | 中国长江电力股份有限公司 | A kind of large-sized water turbine generator stator bar maintenance lifting working platform |
| CN113270982A (en) * | 2021-04-27 | 2021-08-17 | 湖南省水利投地方电力有限公司 | Vertical hydraulic generator rotor installation and maintenance device |
| CN113315318A (en) * | 2021-05-11 | 2021-08-27 | 中国长江电力股份有限公司 | Inspection device and inspection method suitable for large-scale hydraulic generator stator and rotor |
| CN114813197A (en) * | 2022-06-24 | 2022-07-29 | 湖南大学 | Overhauling device and method for ultrathin suspension type vertical generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115549404A (en) | 2022-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115549404B (en) | Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator | |
| CN209296617U (en) | It is a kind of for detecting the X-ray DR image-forming detecting system of aluminium casting casting flaw | |
| CN113315318A (en) | Inspection device and inspection method suitable for large-scale hydraulic generator stator and rotor | |
| CN110925149B (en) | Maintenance method for gearbox tower of wind driven generator | |
| KR101307762B1 (en) | Turbine rotor stand worktable | |
| CN105562438A (en) | Quick debugging method of vertical loop | |
| CN214560953U (en) | Diversion tunnel overhaul robot | |
| CN204578306U (en) | High-rating generator inspection platform | |
| CN108861858A (en) | A kind of wirerope meter is long, the blanking device and wirerope long baiting method of meter | |
| CN107393609A (en) | A kind of testing stand for detecting fuel assembly control rod guide pipe and pulling and pushing power | |
| CN218595960U (en) | Hoisting mechanism of European bridge crane | |
| CN208667020U (en) | A kind of large-size spherical tank internal inspection platform | |
| CN211366621U (en) | Automatic cable arrangement device | |
| CN216335775U (en) | Cable laying device for transformer substation | |
| CN112345536B (en) | Pumped storage power station inclined shaft tunnel appearance inspection measuring device and arrangement method | |
| CN215812676U (en) | Movable VOC gas monitoring device for environment monitoring | |
| CN114962160A (en) | Efficient installation device and method for high tower drum equipment | |
| CN113428646A (en) | Handling device is used in fabrics production | |
| RU110670U1 (en) | PORTAL TYPE STAND FOR ASSEMBLING A LOCOMOTIVE WHEEL AND ENGINE BLOCK | |
| CN112809706A (en) | Diversion tunnel overhaul robot | |
| CN111362177B (en) | Use method of lifting device for electric automation equipment | |
| CN218081152U (en) | Gantry type movable welding platform for machining wind power tower cylinder | |
| CN210313104U (en) | End cover hoisting device | |
| CN220165452U (en) | Wire winding device for wrapping machine | |
| CN213834345U (en) | Intensive lifting driving device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |