CN220059778U - Magnetic trolley for checking blades of mixed-flow water turbine - Google Patents
Magnetic trolley for checking blades of mixed-flow water turbine Download PDFInfo
- Publication number
- CN220059778U CN220059778U CN202321112940.0U CN202321112940U CN220059778U CN 220059778 U CN220059778 U CN 220059778U CN 202321112940 U CN202321112940 U CN 202321112940U CN 220059778 U CN220059778 U CN 220059778U
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- China
- Prior art keywords
- magnetic
- operating rod
- blades
- camera
- trolley
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 241000791900 Selene vomer Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a magnetic trolley for checking blades of a mixed-flow water turbine, which comprises a handle, wherein the handle is fixedly connected with a first operating rod, the first operating rod is movably connected with a second operating rod, and the second operating rod is connected with a magnetic block through a rotating shaft; the middle part of the magnetic block is provided with a penetrating camera overlooking view finding window, the lower part is provided with a directional wheel and a universal wheel, and a camera fixture clamping component is arranged in front of the camera overlooking view finding window. According to the magnetic trolley for checking the blades of the mixed-flow water turbine, disclosed by the utility model, the magnetic trolley can be used for comprehensively probing in a curve in a steel structure of a special-shaped space through the cooperation of the handle, the operating rod, the wheels and the magnetic blocks.
Description
Technical Field
The utility model relates to the technical field of nondestructive inspection and detection, in particular to a magnetic trolley for detecting blades of a mixed-flow water turbine.
Background
The runner of the mixed-flow water turbine is an important component of the water turbine and generally consists of an upper crown, blades, a lower ring, a water discharge cone, a leakage stopping device and a pressure reducing device. The blades are the cores for the water turbine to realize energy conversion, the blades are twisted, the cross section of the blades is in a wing shape, the lower ring is positioned at the lower end of the runner blades, the blades are connected into a whole to increase the strength and the rigidity of the runner, and meanwhile, the blades and the upper crown form a flow passage.
The transition area between the hub and the blades of the mixed flow turbine runner is a weak link of the whole runner in mechanical property, and the runner generates stress concentration due to poor casting and welding technology, unreasonable structural design and the like and the blades are subjected to the action of water flow or vibrating pulsating force in the running process of the turbine unit, so that the material is subjected to fatigue damage, and cracks are generated at the stress concentration. The francis turbine runner typically develops cracks at the connection of the blades to the crown and ring down.
The hydroelectric generating set operates for a long time, and the turbine runner periodically performs nondestructive inspection or visual inspection. Because of the narrow structural design of the runner space curves among the runner blades, the runner room environment is moist and dim, personnel enter the runner blades and fall risks, and visual inspection cannot be performed comprehensively and carefully. The inspection is usually carried out with the aid of an industrial endoscope and photographic equipment self-photographing rod holder device. When the industrial endoscope is used, an external power supply is required to be pulled into the volute and the rotating wheel chamber, a camera of the industrial endoscope can only walk along the bottom of the equipment component through a manual conveying coil pipe, the visual field range is narrow, and the probing work of vertical, oblique and top equipment cannot be performed; the flexible and accurate positioning of the coil pipe is poor, and the coil pipe cannot bend and rotate the camera at a large angle. The same photographic equipment selfie stick frame equipment has poor flexibility in a narrow working space, and long-distance observation and operation of special-shaped space structures cannot be realized by the same equipment.
Disclosure of Invention
The utility model aims to solve the problems and provide a magnetic trolley for checking blades of a mixed-flow water turbine.
The utility model realizes the above purpose through the following technical scheme:
the magnetic trolley for checking the blades of the mixed-flow water turbine comprises a handle, wherein the handle is fixedly connected with a first operating rod, the first operating rod is movably connected with a second operating rod, and the second operating rod is connected with a magnetic block through a rotating shaft;
the middle part of the magnetic block is provided with a penetrating camera overlooking view finding window, the lower part of the magnetic block is provided with a directional wheel and a universal wheel, and the front part of the camera overlooking view finding window is provided with a camera clamping component.
The further scheme is that the first operating rod is movably connected with the second operating rod through the universal rotating shaft, so that the magnetic trolley can steer in a large angle in the horizontal direction.
The further scheme is that universal wheels are arranged in front of the bottom of the magnetic block, and two directional wheels are arranged behind the bottom of the magnetic block.
The overlooking view finding window of the camera is used for overlooking view finding of short-focus and micro-distance camera equipment.
The utility model has the beneficial effects that:
according to the magnetic trolley for checking the blades of the mixed-flow water turbine, disclosed by the utility model, the magnetic trolley can be used for comprehensively probing in a curve in a steel structure of a special-shaped space through the cooperation of the handle, the operating rod, the wheels and the magnetic blocks.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the practical drawings required in the embodiments or the prior art description, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of the present utility model.
Fig. 2 is a side view of the present utility model.
Wherein, 1, a handle, 2, a first operating rod, 3, a second operating rod, 4, directional wheels, 5, magnetic blocks, 6 and a camera look-down view window, 7, photographic equipment clamping assembly, 8, photographic equipment clamping assembly open state, 9, universal wheel, 10, universal pivot, 11, pivot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In any embodiment, as shown in fig. 1, a magnetic trolley for checking blades of a francis turbine of the present utility model comprises a handle 1, wherein the handle 1 is fixedly connected with a first operating rod 2, the first operating rod 2 is movably connected with a second operating rod 3, and the second operating rod 3 is connected with a magnetic block 5 through a rotating shaft 11;
the first operating rod 1 is movably connected with the second operating rod 3 through the universal rotating shaft 10, so that the magnetic trolley can steer in a large angle in the horizontal direction. The middle part of the magnetic block 5 is provided with a penetrating camera overlooking view window 6, the lower part is provided with a directional wheel 4 and a universal wheel 9, and the front part of the camera overlooking view window 6 is provided with a camera clamping component 7. The camera overlooking view finding window 6 is used for overlooking view finding of short-focus and micro-distance camera equipment. The universal wheels 9 are arranged in front of the bottom of the magnetic block 5, and the two directional wheels 4 are arranged behind the bottom of the magnetic block 5.
The first operating rod 1 of the magnetic trolley is movably connected with the second operating rod 3 through the universal rotating shaft 10, so that the magnetic trolley can turn in a large angle in the horizontal direction, and the curve running requirement in the special-shaped equipment structure is met; the second operating rod 3 is connected with the bottom of the magnetic block 5 by adopting a rotating shaft 11, so that the magnetic block 5 has a certain movement trend in the vertical direction; the universal wheels 9 are arranged in front of the bottom of the magnetic block 5, and the two directional wheels 4 are arranged at the rear of the bottom of the magnetic block 5, so that the magnetic block 5 is flexible in direction change, and the magnetic block 5 can run more stably due to triangular wheel arrangement, thereby ensuring the definition and stability of an image picture; the magnetic block 5 has good magnetism, is adsorbed on the surface of the probed equipment, can be matched with a magnetic adsorption type camera head for use, and can meet the requirements of using more camera equipment and acquiring more view finding angles so as to enable the probing work to be simple and convenient; the camera equipment clamping component 7 has a telescopic clamping function, can meet the requirements of mobile shooting devices with different models and sizes, and ensures the safety of mobile equipment; the middle part of the magnetic block 5 is provided with a camera overlooking view finding window, so that overlooking view finding of short-focus and micro-distance camera equipment is met; the magnetic trolley is simple in structure and portable to operate, workers can remotely control and observe, safety risks are reduced, and personal safety is guaranteed.
Before the utility model works, the camera equipment clamping component 7 is opened to mount the camera equipment, or the magnet 5 is directly utilized to be connected with the magnetic attraction type cradle head of the camera equipment, after the installation is finished, the magnet 5 of the trolley is adsorbed on the rotating wheel blade, the view finding angle of the camera equipment is adjusted, the starting position is selected, and the magnet trolley reaches the preset position through the handle 1, the first operating rod 2 and the second operating rod 3, so that the image of the equipment to be probed is recorded.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims. In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (4)
1. The magnetic trolley for checking the blades of the mixed-flow water turbine is characterized by comprising a handle, wherein the handle is fixedly connected with a first operating rod, the first operating rod is movably connected with a second operating rod, and the second operating rod is connected with a magnetic block through a rotating shaft;
the middle part of the magnetic block is provided with a penetrating camera overlooking view finding window, the lower part of the magnetic block is provided with a directional wheel and a universal wheel, and the front part of the camera overlooking view finding window is provided with a camera clamping component.
2. The magnetic trolley for checking blades of a francis turbine as claimed in claim 1, wherein the first operating lever is movably connected to the second operating lever through a universal rotating shaft, so that the magnetic trolley can be turned at a large angle in a horizontal direction.
3. The magnetic trolley for checking blades of a francis turbine as claimed in claim 1, wherein the front of the bottom of the magnet is provided with a universal wheel, and the rear of the bottom of the magnet is provided with two directional wheels.
4. The magnetic trolley for mixed-flow turbine blade inspection of claim 1 wherein the camera overhead view window is used for overhead view of short focal length and macro camera equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112940.0U CN220059778U (en) | 2023-05-10 | 2023-05-10 | Magnetic trolley for checking blades of mixed-flow water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112940.0U CN220059778U (en) | 2023-05-10 | 2023-05-10 | Magnetic trolley for checking blades of mixed-flow water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059778U true CN220059778U (en) | 2023-11-21 |
Family
ID=88761452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321112940.0U Active CN220059778U (en) | 2023-05-10 | 2023-05-10 | Magnetic trolley for checking blades of mixed-flow water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059778U (en) |
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2023
- 2023-05-10 CN CN202321112940.0U patent/CN220059778U/en active Active
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| GR01 | Patent grant |