CN112059460A - Spray welding system and method for repairing rail vehicle wheel set based on spray welding technology - Google Patents
Spray welding system and method for repairing rail vehicle wheel set based on spray welding technology Download PDFInfo
- Publication number
- CN112059460A CN112059460A CN202010990664.2A CN202010990664A CN112059460A CN 112059460 A CN112059460 A CN 112059460A CN 202010990664 A CN202010990664 A CN 202010990664A CN 112059460 A CN112059460 A CN 112059460A
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- China
- Prior art keywords
- spray welding
- rail vehicle
- wheels
- rod
- support
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Abstract
The invention relates to a spray welding system and a method for repairing a rail vehicle wheel set based on a spray welding technology, wherein the system comprises a base, wherein a support is arranged on the base: the welding gun comprises a support, and is characterized in that a pair of fixing shafts for supporting wheels of the rail vehicle are arranged on the support, a clamping mechanism for clamping the wheels of the rail vehicle to prevent the wheels of the rail vehicle from rotating during spray welding is arranged in the fixing shafts, a spray welding gun head is slidably mounted on the support, and a driving device for driving the spray welding gun head to move along the horizontal direction and changing the welding direction of the spray welding gun head is arranged in the support. The invention repairs the wheels of the rail vehicle by a spray welding method; the rail vehicle wheels are locked through the cooperation of the pressing rod and the rotary table, so that the rail vehicle wheels are prevented from loosening during spray welding, and the position and the precision of the spray welding are influenced; the compression rod is driven to swing to adapt to the rail vehicle wheels of different sizes through the cooperation of the spring and the telescopic rod, the rail vehicle wheels of various models can be repaired, and the repair cost is reduced.
Description
Technical Field
The invention relates to the field of remanufacturing and repairing of railway vehicle wheels, in particular to a spray welding system and a spray welding method for repairing a railway vehicle wheel pair based on a spray welding technology.
Background
The rail vehicle is a main tool for transportation in China, such as a train of a traditional railway, an intercity rail train and the like, and bears the main transportation capacity of passenger transportation and freight transportation in China. Due to the long running route of the rail vehicle, particularly in the peak period of passengers such as spring transportation and the like, under the long-term high-pressure working environment, the wheels of the rail vehicle are easily abraded and even deformed, so that the normal and safe running of the rail vehicle is influenced; at present, damaged wheels of rail vehicles are mainly replaced by disassembling and recovering, waste wheels directly enter a steel plant for remelting, most of the wheels are only worn on the surfaces and can be reused after repair, and meanwhile, the new wheels are high in manufacturing cost, long in production period and high in replacement cost, so that a spray welding system and a spray welding method for repairing the wheel pairs of the rail vehicles based on a spray welding technology are designed to repair the surfaces of the worn wheels.
Disclosure of Invention
In order to solve the technical problems, the invention provides a spray welding system and a spray welding method for repairing a rail vehicle wheel set based on a spray welding technology. The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a spray welding system based on spray welding technique restores rail vehicle wheel pair, includes the base, be equipped with the support on the base, be equipped with a pair of fixed axle that supports the rail vehicle wheel on the support, be equipped with in the fixed axle and press from both sides tight rail vehicle wheel and prevent to take place pivoted clamping mechanism when spray welding, slidable mounting has the spray welding rifle head on the support, be equipped with the drive arrangement who drives the spray welding rifle head and change spray welding rifle head welding direction simultaneously along the horizontal direction motion in the support.
The clamping mechanism comprises a plurality of pressing rods which are hinged in the fixed shaft and are circumferentially distributed around the axis direction of the fixed shaft to tightly support the wheels of the rail vehicle, a turntable which is matched with the pressing rods in a threaded mode and locks the positions of the wheels of the rail vehicle is arranged on the fixed shaft, and an angle adjusting mechanism which is used for adjusting the angles of the pressing rods to adapt to the wheels of the rail vehicle with different sizes is arranged in the fixed shaft.
The angle adjusting mechanism comprises a telescopic rod which is slidably mounted in a fixed shaft, a stepped shaft is arranged at the top end of the telescopic rod, a convex block which extends into a gap between the telescopic rod and the stepped shaft is arranged on the pressing rod, a spring which drives the pressing rod to swing by extruding the convex block through the telescopic rod by providing thrust for the telescopic rod is arranged in the fixed shaft, and the telescopic rod is connected with a handle.
The driving device comprises a moving plate which is slidably mounted on a support, a lead screw matched with the moving plate is arranged on the support, the lead screw is connected with a first motor, a gear connected with a spray welding gun head is arranged on the moving plate, and a rotating mechanism which is used for driving the gear to rotate so as to change the welding direction of the spray welding gun head and lock the position of the gear is arranged on the support.
The rotating mechanism comprises a rack which is fixed on the support and matched with the gear, an arc-shaped groove is formed in the gear, limiting holes are formed in two ends of the arc-shaped groove, a limiting rod which extends into the arc-shaped groove to limit rotation of the gear is slidably mounted on the movable plate, and a lifting mechanism which drives the limiting rod to enter and exit the gear is arranged on the support.
The lifting mechanism comprises a trapezoidal block arranged on the support, and the limiting rod is connected with a lifting rod matched with the trapezoidal block.
The length of the rack is half of the circumference of the gear.
The central angle of the arc-shaped groove is 180 degrees.
The fixed shaft is connected with a second motor.
A method of repairing a spray welding system for a rail vehicle wheel set using a spray welding-based technique, comprising the steps of:
the first step is as follows: placing the wheel on the fixed shaft, rotating the turntable to enable the turntable to be matched with the pressing rod to fix the wheel;
the second step is that: the spray welding gun head carries out spray welding repair on the wheel, and meanwhile, the second motor drives the fixed shaft to rotate;
the third step: when the wheel on one side is repaired, the turntable is manually rotated, meanwhile, the wheel is pulled to move along the axis direction of the fixed shaft and is disengaged from the pressing rod, then, the handle is pulled to enable the pressing rod to rotate to enter the fixed shaft, and finally, the wheel is dismounted;
the fourth step: after the wheels are dismounted, the first motor drives the screw rod to rotate to be matched with the movable plate, the movable plate is driven to move along the horizontal direction, and the lifting rod is matched with the trapezoidal block before the gears are matched with the racks, so that the limiting rod is separated from the limiting hole;
the fifth step: and in the moving process of the moving plate, the gear is matched with the rack and then drives the gear to rotate for 180 degrees, the position of the spray welding gun head is changed, then the lifting rod is separated from the trapezoidal block, and the limiting rod enters the limiting hole to lock the gear.
And a sixth step: when the first motor drives the moving plate to move to the wheels of the rail vehicle on the fixed shaft at the opposite side, the spraying welding gun head is started to repair the wheels.
The invention has the beneficial effects that: the invention repairs the wheels of the rail vehicle by a spray welding method; the rail vehicle wheels are locked through the cooperation of the pressing rod and the rotary table, so that the rail vehicle wheels are prevented from loosening during spray welding, and the position and the precision of the spray welding are influenced; the compression rod is driven to swing to adapt to the rail vehicle wheels of different sizes through the cooperation of the spring and the telescopic rod, the rail vehicle wheels of various models can be repaired, and the repair cost is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the front view of the internal structure of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of the clamping mechanism of the present invention;
FIG. 5 is a schematic view of the lifting mechanism of the present invention;
fig. 6 is an enlarged view of I of fig. 4 according to the present invention.
Shown in the figure: 1. a base; 2. a support; 3. a fixed shaft; 4. a clamping mechanism; 5. a drive device; 6. spraying and welding gun heads; 7. a second motor; 41. a hold down bar; 42. a handle; 43. a turntable; 44. an angle adjusting mechanism; 441. a telescopic rod; 442. a stepped shaft; 443. a bump; 444. a spring; 51. moving the plate; 52. a lead screw; 53. a first motor; 54. a gear; 55. a rotating mechanism; 56. a lifting mechanism; 57. a linear guide rail; 551. a rack; 552. an arc-shaped slot; 553. a limiting hole; 554. a limiting rod; 561. a trapezoidal block; 562. a lifting rod; 563. a T-shaped plate; 562a, a return spring.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.
As shown in fig. 1 to 6, a spray welding system capable of remanufacturing a rail vehicle wheel set comprises a base 1, wherein a support 2 is arranged on the base 1, a pair of fixing shafts 3 for supporting wheels of a rail vehicle are arranged on the support 2, a clamping mechanism 4 for clamping the wheels of the rail vehicle to prevent the wheels of the rail vehicle from rotating during spray welding is arranged in each fixing shaft 3, a spray welding gun head 6 is slidably arranged on the support 2, and a driving device 5 for driving the spray welding gun head 6 to move along a horizontal direction and changing the welding direction of the spray welding gun head 6 is arranged in the support 2; because the wheels of the railway vehicle have steps, the spraying welding gun head 6 with the deflection angle is adopted, and the steps can be repaired by spraying welding.
The clamping mechanism 4 comprises a plurality of pressing rods 41 which are hinged and installed in the fixed shaft 3 and are distributed circumferentially around the axis direction of the fixed shaft 3 to tightly abut against the wheels of the railway vehicle, a turntable 43 which is in threaded fit with the fixed shaft 3 and is matched with the pressing rods 41 to lock the positions of the wheels of the railway vehicle is arranged on the fixed shaft 3, and an angle adjusting mechanism 44 which is used for adjusting the angles of the pressing rods 41 to adapt to the wheels of the railway vehicle with different sizes is arranged in the fixed shaft 3; the turntable 43 provides a supporting force, so that the wheels of the rail vehicle are tightly pressed against the pressing rod 41, and the wheels of the rail vehicle are prevented from loosening in the rotating process.
The angle adjusting mechanism 44 comprises a telescopic rod 441 slidably mounted in the fixed shaft 3, the top end of the telescopic rod 441 is provided with a stepped shaft 442, the pressing rods 41 are respectively provided with a projection 443 extending into a gap between the telescopic rod 441 and the stepped shaft 442, and the fixed shaft 3 is internally provided with a spring 444 which provides thrust for the telescopic rod 441 to enable the telescopic rod 441 to extrude the projection 443 to drive the pressing rods 41 to swing; the telescopic rod 441 is connected with a handle 42, the handle 42 can be pulled to drive the telescopic rod 441 to move along the axial direction of the telescopic rod 441, and the pressing rod 41 is driven to be received in the fixed shaft 3, so that wheels of the railway vehicle can be easily assembled and disassembled; when the handle 42 is released, the spring 444 drives the telescopic rod 441 to return, so that the pressing rod 41 swings out of the fixed shaft 3.
The driving device 5 comprises a moving plate 51 which is slidably mounted on the support 2, a lead screw 52 which is matched with the moving plate 51 is arranged on the support 2, the lead screw 52 is connected with a first motor 53, a gear 54 which is connected with the spray welding gun head 6 is arranged on the moving plate 51, and a rotating mechanism 55 which drives the gear 54 to rotate so as to change the welding direction of the spray welding gun head 6 and lock the position of the gear 54 is arranged on the support 2; the support 2 is provided with a linear guide rail 57 matched with the movable plate 51, the first motor 53 drives the screw rod 52 to rotate to be matched with the movable plate 51, the movable plate 51 is driven to move along the horizontal direction, the welding gun head 6 is enabled to weld the rail vehicle wheels on the fixed shaft 3 on the opposite side, the welded rail vehicle wheels can be disassembled on the fixed shaft 3 on the opposite side, meanwhile, the unrepaired wheels are installed, the condition that the repair of the rail vehicle wheels on the opposite side is finished is not needed to be waited, the unnecessary waiting time is reduced, and the repairing efficiency is improved.
The rotating mechanism 55 includes a rack 551 fixed on the support 2 and engaged with the gear 54, the gear 54 is provided with an arc-shaped groove 552, two ends of the arc-shaped groove 552 are respectively provided with a limiting hole 553, the moving plate 51 is slidably mounted with a limiting rod 554 extending into the arc-shaped groove 552 to limit the rotation of the gear 54, and the support 2 is provided with a lifting mechanism 56 for driving the limiting rod 554 to enter and exit the gear 54.
The lifting mechanism 56 comprises a trapezoidal block 561 arranged on the support 2, and the limiting rod 554 is connected with a lifting rod 562 matched with the trapezoidal block 561; a T-shaped plate 563 is arranged between the lifting rod 562 and the limiting hole 553, after the gear 54 is matched with the rack 551, the lifting rod 562 is matched with the trapezoidal block 561 to change the height of the T-shaped plate 563, so that the T-shaped plate 563 drives the limiting rod 554 to enter the limiting hole 553, the gear 54 is fixed, the gear 54 is prevented from rotating when the spray welding gun head 6 is welded, the welding position of the spray welding gun head 6 is changed, and the spray welding position is inaccurate; the lifting rod 562 is sleeved with a return spring 562 a.
The length of the rack 551 is half of the circumference of the gear 54 so as to drive the gear 54 to rotate 180 degrees, and the position of the spray welding gun head 6 is changed, so that the spray welding gun head 6 is welded on the wheels of the rail vehicle on the fixed shaft 3 at the opposite side; the length of the trapezoid block 561 is larger than that of the rack 551, and the lifting rod 562 is engaged with the trapezoid block 561 before the gear 54 is engaged with the rack 551, so that the limit rod 554 is disengaged from the limit hole 553, and the motion interference is prevented.
The central angle of the arc-shaped slot 552 is 180 degrees.
The fixed shafts 3 are connected with a second motor 7; the second motor 7 drives the fixed shaft 3 to rotate, so that spray welding can be carried out on the wheels of the rail vehicle in the circumferential direction.
A method of repairing a spray welding system for a rail vehicle wheel set using a spray welding-based technique, comprising the steps of:
the first step is as follows: placing the wheel on the fixed shaft 3, and rotating the turntable 43 to enable the turntable 43 to be matched with the pressing rod 41 to fix the wheel;
the second step is that: the spray welding gun head 6 carries out spray welding repair on the wheel, and meanwhile, the second motor 7 drives the fixed shaft 3 to rotate;
the third step: when the wheel on one side is repaired, the turntable 43 is manually rotated, meanwhile, the wheel is pulled to move along the axial direction of the fixed shaft 3 and is disengaged from the pressing rod 41, then, the handle 42 is pulled to enable the pressing rod 41 to rotate to enter the fixed shaft 3, and finally, the wheel is dismounted;
the fourth step: after the wheels are dismounted, the first motor 53 drives the screw rod 52 to rotate to be matched with the moving plate 51, so as to drive the moving plate 51 to move along the horizontal direction, and the lifting rod 562 is matched with the trapezoidal block 561 before the gear 54 is matched with the rack 551, so that the limiting rod 554 is separated from the limiting hole 553;
the fifth step: in the moving process of the moving plate 51, the gear 54 is matched with the rack 551 to drive the gear 54 to rotate 180 degrees, the position of the spray welding gun head 6 is changed, then the lifting rod 562 is disengaged from the trapezoidal block 561, and the limiting rod 554 enters the limiting hole 553 to lock the gear 54.
And a sixth step: when the first motor 53 drives the moving plate 51 to move to the wheel of the railway vehicle on the opposite side fixed shaft 3, the spray welding gun head 6 is started to repair the wheel.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a spray welding system based on spray welding technique restores rail vehicle wheel pair, includes base (1), be equipped with support (2) on base (1), its characterized in that: the welding device is characterized in that a pair of fixing shafts (3) for supporting wheels of the rail vehicle are arranged on the support (2), clamping mechanisms (4) for clamping the wheels of the rail vehicle to prevent the wheels of the rail vehicle from rotating during spray welding are arranged in the fixing shafts (3), a spray welding gun head (6) is slidably mounted on the support (2), and a driving device (5) for driving the spray welding gun head (6) to move along the horizontal direction and changing the welding direction of the spray welding gun head (6) is arranged in the support (2).
2. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 1, wherein: the clamping mechanism (4) comprises a plurality of pressing rods (41) which are hinged to be installed in the fixing shaft (3) and are circumferentially distributed around the axis direction of the fixing shaft (3) to abut against the wheels of the rail vehicle, a turntable (43) which is matched with the pressing rods (41) in a threaded mode and locks the positions of the wheels of the rail vehicle is arranged on the fixing shaft (3), and an angle adjusting mechanism (44) which is used for adjusting the angles of the pressing rods (41) to adapt to the wheels of the rail vehicle with different sizes is arranged in the fixing shaft (3).
3. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 2, wherein: the angle adjusting mechanism (44) comprises a telescopic rod (441) which is slidably mounted in a fixed shaft (3), a stepped shaft (442) is arranged at the top end of the telescopic rod (441), a protruding block (443) which extends into a gap between the telescopic rod (441) and the stepped shaft (442) is arranged on each compression rod (41), a spring (444) which provides thrust for the telescopic rod (441) to enable the telescopic rod (441) to extrude the protruding block (443) to drive the compression rod (41) to swing is arranged in the fixed shaft (3), and the telescopic rod (441) is connected with a handle (42).
4. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 1, wherein: the driving device (5) comprises a moving plate (51) which is slidably mounted on the support (2), a lead screw (52) matched with the moving plate (51) is arranged on the support (2), the lead screw (52) is connected with a motor (53), a gear (54) connected with the spray welding gun head (6) is arranged on the moving plate (51), and the support (2) is provided with a rotating mechanism (55) which drives the gear (54) to rotate so as to change the spray welding gun head (6) to change the welding direction and lock the position of the gear (54).
5. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 4, wherein: the rotating mechanism (55) comprises a rack (551) which is fixed on the support (2) and is matched with the gear (54), an arc-shaped groove (552) is formed in the gear (54), limiting holes (553) are formed in two ends of the arc-shaped groove (552), a limiting rod (554) which extends into the arc-shaped groove (552) to limit the rotation of the gear (54) is slidably mounted on the moving plate (51), and a lifting mechanism (56) which drives the limiting rod (554) to enter and exit the gear (54) is arranged on the support (2).
6. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 5, wherein: the lifting mechanism (56) comprises a trapezoidal block (561) installed on the support (2), and the limiting rod (554) is connected with a lifting rod (562) matched with the trapezoidal block (561).
7. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 5, wherein: the length of the rack (551) is half of the circumference of the gear (54).
8. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 5, wherein: the central angle of the arc-shaped groove (552) is 180 degrees.
9. The spray welding system for repairing rail vehicle wheel sets based on spray welding technology of claim 1, wherein: the fixed shafts (3) are connected with a second motor (7).
10. Method for repairing a spray welding system for railway vehicle wheel pairs based on spray welding technology, according to any of claims 1-9, characterized in that: the method comprises the following steps:
the first step is as follows: placing the wheel on the fixed shaft (3), and rotating the turntable (43) to enable the turntable (43) to be matched with the pressing rod (41) to fix the wheel;
the second step is that: the spray welding gun head (6) performs spray welding repair on the wheel, and meanwhile, the second motor (7) drives the fixed shaft (3) to rotate;
the third step: when the wheel on one side is repaired, the rotating disc (43) is manually rotated, meanwhile, the wheel is pulled to move along the axis direction of the fixed shaft (3) and is disengaged from the pressing rod (41), then, the handle (42) is pulled to enable the pressing rod (41) to rotate to enter the fixed shaft (3), and finally, the wheel is dismounted;
the fourth step: after the wheels are dismounted, a first motor (53) drives a screw rod (52) to rotate to be matched with a moving plate (51) to drive the moving plate (51) to move along the horizontal direction, and a lifting rod (562) is matched with a trapezoidal block (561) before a gear (54) is matched with a rack (551), so that a limiting rod (554) is separated from a limiting hole (553);
the fifth step: then, in the moving process of the moving plate (51), the gear (54) is matched with the rack (551) to drive the gear (54) to rotate 180 degrees, the position of the spray welding gun head (6) is changed, then the lifting rod (562) is disengaged from the trapezoidal block (561), and the limiting rod (554) enters the limiting hole (553) to lock the gear (54);
and a sixth step: when the first motor (53) drives the moving plate (51) to move to the wheels of the rail vehicle on the fixed shaft (3) at the opposite side, the spray welding gun head (6) is started to repair the wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990664.2A CN112059460A (en) | 2020-09-19 | 2020-09-19 | Spray welding system and method for repairing rail vehicle wheel set based on spray welding technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990664.2A CN112059460A (en) | 2020-09-19 | 2020-09-19 | Spray welding system and method for repairing rail vehicle wheel set based on spray welding technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112059460A true CN112059460A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010990664.2A Withdrawn CN112059460A (en) | 2020-09-19 | 2020-09-19 | Spray welding system and method for repairing rail vehicle wheel set based on spray welding technology |
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| CN (1) | CN112059460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977461A (en) * | 2021-11-17 | 2022-01-28 | 国网新源控股有限公司 | Cavitation repair device for water turbine set for energy storage power station and use method of cavitation repair device |
-
2020
- 2020-09-19 CN CN202010990664.2A patent/CN112059460A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977461A (en) * | 2021-11-17 | 2022-01-28 | 国网新源控股有限公司 | Cavitation repair device for water turbine set for energy storage power station and use method of cavitation repair device |
| CN113977461B (en) * | 2021-11-17 | 2023-08-29 | 国网新源控股有限公司 | Cavitation repairing device for water turbine unit of energy storage power station and use method of cavitation repairing device |
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Application publication date: 20201211 |