CN117415415B - Runner welding device and welding method for mixed-flow turbine - Google Patents
Runner welding device and welding method for mixed-flow turbine Download PDFInfo
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- CN117415415B CN117415415B CN202311733260.5A CN202311733260A CN117415415B CN 117415415 B CN117415415 B CN 117415415B CN 202311733260 A CN202311733260 A CN 202311733260A CN 117415415 B CN117415415 B CN 117415415B
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- 238000003466 welding Methods 0.000 title claims abstract description 271
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007306 turnover Effects 0.000 claims description 23
- 239000002893 slag Substances 0.000 claims description 13
- 230000008602 contraction Effects 0.000 claims description 10
- 230000001012 protector Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 13
- 230000001681 protective effect Effects 0.000 description 11
- 239000007787 solid Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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
- B23K9/00—Arc welding or cutting
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of welding of water turbines, and discloses a mixed-flow water turbine runner welding device and a welding method, wherein the welding device comprises a support frame, the top end of the support frame is fixedly connected with a top plate, the top side of the top plate is provided with a lifting plate, and the inner side of the lifting plate is fixedly connected with a hydraulic rod; the welding assembly comprises a bottom plate, a mechanical arm, a welding end, a lantern ring, a shrinkage connecting rod, an extension rod, a protection barrel, an elastic arc piece and a sliding sheet fixing ring, wherein the bottom plate is arranged right below the top plate, the mechanical arm is arranged on the bottom side of the bottom plate, the welding end is fixedly connected with the bottom end of the mechanical arm, the lantern ring is fixedly connected with the outer side surface of the welding end, the shrinkage connecting rod is fixedly connected with the side surface of the lantern ring, the extension rod is slidably connected with the tail end of the shrinkage connecting rod, and the protection barrel is slidably connected with the outer side of the welding end.
Description
Technical Field
The invention relates to the technical field of welding of water turbines, in particular to a device and a method for welding a runner of a mixed-flow water turbine.
Background
The francis turbine is a hydroelectric power generating machine which uses the kinetic energy of water flow to drive a generator to generate electric energy. The runner is one of key components of the water turbine and is responsible for converting kinetic energy of water flow into mechanical energy, when the water turbine runner is welded, a welding arc melts out a concave or groove at the edge of a welding line without being supplemented by molten metal to leave a gap, or the molten metal is attached to a welding head to influence the arc release direction, so that the welding precision is influenced.
The patent with the application number of CN202210649036.7 discloses a mixed-flow type runner welding device for a water turbine, which comprises a first supporting seat, a supporting mechanism, a robot and a welding head, wherein the top of the first supporting seat is connected with the supporting mechanism for supporting, the robot is arranged on the supporting mechanism, the welding head for carrying out electric welding fixation on blades is arranged at the lower end of the robot, the sliding frame can be driven to rotate by taking a driving piece as a driving force, so that the runner can be driven to rotate, then the welding head can be controlled by the robot to fix the blades between a lower ring and an upper crown in an electric welding mode, and the welding device is simple and convenient to operate, time-saving and labor-saving.
Although the above-mentioned effects are achieved, the problem that the welding effect after the release of the welding arc is affected by the adhesion of the molten metal to the welding head is not solved, and therefore, it is necessary to design a welding device and a welding method for a runner of a francis turbine, which prevent the arc from being affected by the adhesion of the metal to the welding head.
Disclosure of Invention
The invention aims to provide a mixed-flow turbine runner welding device and a welding method, which are used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the runner welding device of the mixed-flow water turbine comprises a support frame, wherein the top end of the support frame is fixedly connected with a top plate, the top side of the top plate is provided with a lifting plate, and the inner side of the lifting plate is fixedly connected with a hydraulic rod; the welding assembly comprises a bottom plate, a mechanical arm, a welding end, a lantern ring, a contraction connecting rod, an extension rod, a protection cylinder, an elastic arc piece and a sliding sheet fixed ring, wherein the bottom plate is arranged right below the top plate, the mechanical arm is arranged at the bottom side of the bottom plate, the welding end is fixedly connected with the bottom end of the mechanical arm, the lantern ring is fixedly connected with the outer side surface of the welding end, the contraction connecting rod is fixedly connected with the side surface of the lantern ring, the extension rod is slidingly connected with the end of the contraction connecting rod, the protection cylinder is slidingly connected with the outer side surface of the welding end, the elastic arc piece is fixedly connected with the outer side surface of the protection cylinder, the sliding sheet fixed ring is fixedly connected with the end side surface of the protection cylinder, the bottom surface of the lifting plate is fixedly connected with a vertical sliding rod, and the bottom end of the vertical sliding rod is fixedly connected with the bottom plate, the sliding vane fixed ring is fixedly connected with the extension rod, a spring is arranged at the outer side of the welding end, one end of the spring is fixedly connected with the lantern ring, the other end of the spring is fixedly connected with the sliding vane fixed ring, the lifting plate is enabled to move downwards through contraction of the hydraulic rod and push the vertical sliding rod to drive the bottom plate to move downwards during welding, so that a mechanical arm at the bottom side of the bottom plate adjusts the vertical position and changes the welding position at the welding end, the mechanical arm can rotate with the bottom plate through built-in driving to adjust the welding angle and cooperate with the bottom plate to move to improve the coverage of the welding point, so that the flexibility is improved, meanwhile, when the welding end needs to be contacted with the welding point firstly, the rotating shaft end is contacted with the welding point firstly and pushes the protective cylinder to move and push the outer spring to be pressed, and then an elastic arc piece sliding at the inner side of the rotating shaft end is contacted with the tail end of the welding end to scrape welding slag remained on the welding end, the welding slag is prevented from adhering to the port of the welding end to influence the welding effect, meanwhile, when the sliding vane solid ring can be used for assisting in positioning the welding position, the problem that the welding arc of the welding end exceeds the range of the sliding vane solid ring to cause that other position structures are burnt and welded to be penetrated by the arc to influence the structural strength is avoided, when the welding end is not contacted with a welding piece, the spring release elasticity pushes the protection cylinder to reset to cover the welding end, the port of the welding end is protected, the welding end is prevented from being worn to influence the welding effect, the mixed-flow turbine runner is composed of an upper crown, a lower ring and blades, the upper crown and the lower ring are respectively welded with the blades, and in order to improve the welding quality of the mixed-flow turbine runner, a novel welding tool and a novel welding method are adopted.
According to the technical proposal, the rear end of the bottom plate is provided with a lifting device, the lifting device comprises a lower pressing plate, a hinging plate inclined rod, an inclined guide plate, an inclined plate groove rod, a lifting plate, a rotating shaft fixing seat, a bracket, a pry bar and a rotating shaft end, the lower pressing plate is fixedly connected with the rear side surface of the bottom plate, the hinging plate inclined rod is hinged with the bottom side surface of the lower pressing plate, the inclined guide plate is hinged with the front end of the hinging plate inclined rod, the inclined plate groove rod is fixedly connected with the front side surface of a supporting frame, the lifting plate is hinged with the top end of the inclined guide plate, the rotating shaft fixing seat is fixedly connected with the front side surface of the supporting frame, the bracket is fixedly connected with the front end of the rotating shaft fixing seat, the pry bar is hinged with the inner side surface of the rotating shaft fixing seat, the inclined guide plate groove rod is connected with the inclined sliding, the top end of the inclined plate groove rod is fixedly connected with a pressing vertical rod, the pressing vertical rod is in sliding connection with the pry bar, the rotating shaft end is in sliding connection with the top end of the pry bar, when the bottom plate moves downwards, the lower pressing plate is driven to move downwards, the lower pressing plate moves to push the hinged plate inclined rod connected with the inclined plate to slide along the inclined plate groove rod, the tail end of the hinged plate inclined rod slides to push the inclined guide plate to move, the inclined guide plate pulls the lifting plate to deflect, the lifting plate passes through the rotating shaft end after deflection, the rotating shaft end is higher than the lifting plate and then contacts with a welding piece, at the moment, the rotating shaft end can be rotated to catch the welding piece, when the bottom plate moves upwards again, the inclined guide plate is pulled by the hinged plate inclined rod to lift one end of the lifting plate upwards, the welding piece on the rotating shaft end is pulled and moves along the inclined guide plate, so that when the welding piece is taken down or placed, under the condition of large lifting equipment such as a crane, the welding device can also move or be placed at a designated position, so that the subsequent welding work is facilitated, meanwhile, when the top end of the inclined guide plate pulls the lifting plate to deflect, the lifting plate presses the pry bar through the top end downward pressing vertical rod, so that the pry bar can jack up the rotating shaft end by taking the bracket connection part as a node for overturning, the worker can manually rotate the rotating shaft end to adjust the orientation of the welding piece, and in addition, the welding piece can be lifted to the designated fixed position by jacking up the rotating shaft end, so that the welding piece can be conveniently fixed.
According to the technical scheme, a turnover device is arranged below the diagonal rod of the hinge plate, the turnover device comprises a side sliding frame, a connecting vertical rod, a vertical moving sliding plate, a rotating ring fixing block, a turnover ring, a pressing sliding cylinder, a sliding rod frame, a threaded rod, a sliding cylinder guide plate, a spring fixing plate, a turnover pressing rod and a pressing rubber ring, the side sliding frame is in sliding connection with the outer side surface of a supporting frame, the connecting vertical rod is fixedly connected with the inner side of the side sliding frame, the vertical moving sliding plate is in sliding connection with the inner side surface of the supporting frame, the rotating ring fixing block is fixedly connected with the inner side of the vertical moving sliding plate, the turnover ring is rotationally connected with the outer side of the rotating ring fixing block, the sliding cylinder guide plate is fixedly connected with the side surface of the turnover ring, the pressing sliding cylinder is in sliding connection with the middle position of the inner side of the sliding cylinder guide plate, the sliding rod frame is fixedly connected with the outer surface of the pressing sliding cylinder, the threaded connection is at the axis of the sliding rod frame, the spring fixing plate is fixedly connected with the inner wall of the pressing cylinder, the end of the turnover pressing sliding rod is in a hinged connection with the inner side end of the pressing sliding cylinder, the end of the turnover pressing rod is hinged with the pressing rubber ring, the vertical rod is in sliding connection with the inner side of the side sliding plate, the pressing plate is in sliding connection with the side sliding plate, the vertical sliding plate is fixedly connected with the side sliding plate, the vertical sliding plate is in sliding connection with the side of the side plate through the side lifting plate, and the vertical sliding plate is in contact with the side plate, and the pressing plate is fixedly connected with the side plate by the pressing plate, and the upper sliding plate is fixedly connected with the upper side plate by the pressing plate, and the upper sliding plate and the threaded rod is in contact with the upper side plate and the threaded rod, the pressing sliding cylinder and the structure connected with the pressing sliding cylinder move upwards together to adjust the fixing position in a small-amplitude mode according to the position of the welding piece, meanwhile, when an external motor connected with the threaded rod drives the threaded rod to rotate through an output shaft, the threaded rod drives the sliding rod frame to slide with the sliding cylinder guide plate, so that the sliding rod frame drives the pressing sliding cylinder to be close to the welding piece, at the moment, a pressing rubber ring connected with a turnover pressing rod on the inner side of the pressing sliding cylinder is close to the welding piece, the fixing effect is achieved through the fact that the pressing rubber ring is changed to increase the attaching area of the welding piece, the pressing rubber ring can push the turnover pressing rod to deflect and press the spring to be pressed after being pressed by the pressing rubber ring, the spring presses reverse thrust to support the pressing rubber ring to maintain the fixing state, when the pressing rubber ring is fixed on the two sides of the welding piece, at the moment, the threaded rod continues to rotate to enable the threaded rod to drive the sliding rod frame to rotate together with the pressing sliding cylinder guide plate, and a rotating shaft fixed seat connected with the sliding rod to rotate on the outer side of the rotating ring fixing block, so that the welding piece is turned over through rotation, and the welding piece is enabled to be turned, so that after one end is welded, the end is adjusted to face upwards through turning, and the subsequent welding processing is completed.
According to the technical scheme, the front side of bottom plate is provided with protector, protector includes lifting link plate, top guard plate, tooth axle bed, inner shield, pivot tooth, drive pinion rack, lifting link plate fixed connection is at the front side of bottom plate, top guard plate fixed connection is at the front side end of lifting link plate, tooth axle bed fixed connection is at the trailing flank of top guard plate, the side at the tooth axle bed is connected in the rotation of pivot tooth, inner shield meshing is connected in the side of pivot tooth, drive pinion rack fixed connection is in the side of support frame, inner shield and top guard plate sliding connection, drive pinion rack and pivot tooth meshing are connected, when the bottom plate moves down and prepares to carry out welding work, the bottom plate moves down and can drive the top guard plate that the lifting link plate is connected down, the pivot tooth that is connected through the side tooth axle bed when making top guard plate move down meshes with drive pinion rack that the inner shield side to let inner shield top slide and extend until top guard plate and the front side that blocks the support frame, prevent to observe the effect of sputter welding personnel from leading to the injury.
A welding method of a mixed-flow turbine runner welding device, comprising:
s1: when in welding, the lifting plate is contracted by the hydraulic rod, the vertical sliding rod is pushed to drive the bottom plate to move downwards, the lower pressing plate is made to move to push the hinged plate inclined rod connected with the lower pressing plate to slide along the inclined plate groove rod, the tail end of the hinged plate inclined rod is made to slide to push the inclined guide plate to move, the inclined guide plate is made to pull the lifting plate to deflect, and at the moment, the welding piece is pushed to the lifting plate through the inclined guide plate;
s2: when the bottom plate moves upwards again, the inclined guide plate is pulled by the hinged plate inclined rod to enable one end of the lifting plate to be lifted upwards, and a welding piece on the rotating shaft end is pulled;
s3: when the external motor connected with the threaded rod drives the threaded rod to rotate through the output shaft, the threaded rod pushes the sliding rod frame to slide with the sliding cylinder guide plate, so that the sliding rod frame pushes the pressing sliding cylinder to be close to the welding piece, and at the moment, the pressing rubber ring connected with the inner side overturning pressing rod of the pressing sliding cylinder is close to the welding piece;
s4: the vertical moving slide plate moves upwards to drive the connecting vertical rod to move, the connecting vertical rod is attached to the side surface of the supporting frame through the side sliding frame to provide support, and the pressing sliding cylinder and the connecting structure of the pressing sliding cylinder move upwards together to adjust the fixed position so as to adjust the position of the welding part in a small range;
s5: the mechanical arm at the bottom side of the bottom plate is enabled to adjust the vertical position and change the welding position at the welding end, and the mechanical arm can rotate with the bottom plate through built-in driving to adjust the welding angle;
s6: when the welding end needs to be contacted with the welding point firstly, the rotating shaft end is contacted with the welding point firstly and pushes the protection cylinder to move and push the outer spring to be pressed, and then the elastic arc piece sliding on the inner side of the rotating shaft end is contacted with the tail end of the welding end to scrape off welding slag remained on the welding end;
s7: when one end of the welding piece is welded and the other end is turned upwards, the threaded rod is continuously rotated to drive the sliding rod frame and the pressing sliding cylinder to rotate together, the pressing sliding cylinder slides on the outer side of the rotating ring fixing block through the rotating shaft fixing seat connected with the sliding cylinder guide plate to rotate, and therefore the welding piece is turned over through rotation.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the bottom plate, the mechanical arm, the welding end, the lantern ring, the contraction connecting rod, the extension rod, the protection cylinder, the elastic arc piece and the sliding piece fixing ring are arranged, the elastic arc piece sliding on the inner side of the rotating shaft end is contacted with the tail end of the welding end and then can scrape off the welding slag remained on the welding end, so that the welding effect is prevented from being influenced by the attachment of the welding slag to the port of the welding end, and meanwhile, the spring releases elasticity to push the protection cylinder to reset to cover the welding end, so that the port of the welding end is protected, and the welding effect is prevented from being influenced by the abrasion of the welding end;
according to the invention, the welding piece on the rotating shaft end is towed and moved along the inclined guide plate through the arrangement of the lower pressing plate, the hinge plate inclined rod, the inclined guide plate, the inclined plate groove rod, the lifting plate, the rotating shaft fixing seat, the bracket, the pry bar and the rotating shaft end, so that when the welding piece is taken down or placed, the welding piece can be moved or placed to a designated position under the condition of not using a crane or other large lifting equipment, the welding work is facilitated, meanwhile, the pry bar can be turned over by taking the connecting part of the bracket as a node to jack up the rotating shaft end, so that a worker can manually rotate the rotating shaft end to adjust the orientation of the welding piece, and in addition, the welding piece is lifted up to the designated fixed position through the upward jacking of the rotating shaft end, so that the welding piece is convenient to fix;
according to the welding device, the side sliding frame, the connecting vertical rod, the vertical moving sliding plate, the swivel fixed block, the overturning ring, the pressing sliding cylinder, the sliding rod frame, the threaded rod and the sliding cylinder guide plate are arranged, the connecting vertical rod is attached to the side surface of the supporting frame through the side sliding frame to provide support, the pressing sliding cylinder and the connecting structure thereof move upwards together to adjust the fixed position so as to carry out small-amplitude adjustment according to the position of a welding part, and meanwhile, the pressing sliding cylinder slides to rotate on the outer side of the swivel fixed block through the rotating shaft fixed seat connected with the sliding cylinder guide plate, so that the welding part is overturned through rotation, and the other end is upwards adjusted through overturning after one end is welded so that subsequent welding processing is completed;
according to the invention, the lifting connecting plate, the top guard plate, the tooth shaft seat, the inner guard plate, the rotating shaft teeth and the driving tooth plate are arranged, and the rotating shaft teeth can be meshed with racks on the side face of the inner guard plate, so that the inner guard plate is attached to the top guard plate to extend in a sliding manner until the top guard plate and the inner guard plate block the front side of the support frame, and the welding slag sputtering in the welding process is prevented from injuring observers, thereby playing a role in protection.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic rear perspective view of the support frame of the present invention;
FIG. 3 is a schematic view of the construction of the welding assembly of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;
FIG. 5 is a schematic view of the construction of the lifting device of the present invention;
FIG. 6 is a schematic view of the structure of the turning device of the present invention;
FIG. 7 is a schematic view of the structure of the guard of the present invention;
FIG. 8 is an enlarged schematic view of the structure of B in FIG. 7 according to the present invention;
in the figure: 1. a support frame; 2. a top plate; 3. a lifting plate; 41. a bottom plate; 42. a mechanical arm; 43. welding the end heads; 44. a collar; 45. a contraction link; 46. an extension rod; 47. a protective cylinder; 48. an elastic arc piece; 49. a sliding vane fixing ring; 5. lifting devices; 51. a lower pressing plate; 52. hinging plate diagonal rods; 53. an inclined guide plate; 54. a tilt plate slot bar; 55. a lifting plate; 56. a rotating shaft fixing seat; 57. a bracket; 58. a pry bar; 59. a rotating shaft end; 6. a turnover device; 61. a side carriage; 62. connecting a vertical rod; 63. vertically moving the sliding plate; 64. a swivel fixing block; 65. a flipping ring; 66. a pressing slide cylinder; 67. a sliding rod frame; 68. a threaded rod; 69. a slide guide plate; 610. a spring fixing plate; 611. overturning the compression bar; 612. pressing a rubber ring; 7. a hydraulic rod; 8. a protective device; 81. lifting the connecting plate; 82. a top guard board; 83. a tooth shaft seat; 84. an inner guard board; 85. rotating shaft teeth; 86. the toothed plate is driven.
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.
Referring to fig. 1-8, an embodiment of the invention is a mixed-flow turbine runner welding device, which comprises a support frame 1, wherein the top end of the support frame 1 is fixedly connected with a top plate 2, the top side of the top plate 2 is provided with a lifting plate 3, and the inner side of the lifting plate 3 is fixedly connected with a hydraulic rod 7; the welding assembly is arranged below the top plate 2 and comprises a bottom plate 41, a mechanical arm 42, a welding end 43, a lantern ring 44, a contraction connecting rod 45, an extension rod 46, a protective cylinder 47, an elastic arc piece 48 and a sliding sheet fixing ring 49, the bottom plate 41 is arranged right below the top plate 2, the mechanical arm 42 is arranged at the bottom side of the bottom plate 41, the welding end 43 is fixedly connected with the bottom end of the mechanical arm 42, the lantern ring 44 is fixedly connected with the outer side surface of the welding end 43, the contraction connecting rod 45 is fixedly connected with the side surface of the lantern ring 44, the extension rod 46 is slidably connected with the end of the contraction connecting rod 45, the protective cylinder 47 is slidably connected with the outer side of the welding end 43, the lifting plate 3 is contracted through the hydraulic rod 7 during welding to enable the lifting plate 41 to move downwards and push the vertical sliding rod to drive the bottom plate 41 to move downwards, so that the mechanical arm 42 at the bottom side of the bottom plate 41 adjusts the vertical position and changes the welding position at the welding end 43, the mechanical arm 42 can rotate with the bottom plate 41 through built-in driving to adjust the welding angle and cooperate with the bottom plate 41 to move to promote the coverage of the welding point, thereby promoting the flexibility, the elastic arc piece 48 is fixedly connected with the outer side surface of the protective cylinder 47, the sliding vane solid ring 49 is fixedly connected with the end side surface of the protective cylinder 47, the bottom surface of the lifting plate 3 is fixedly connected with the vertical sliding rod, the bottom end of the vertical sliding rod is fixedly connected with the bottom plate 41, the sliding vane solid ring 49 is fixedly connected with the extension rod 46, the outer side of the welding end 43 is provided with a spring, one end of the spring is fixedly connected with the lantern ring 44, the other end of the spring is fixedly connected with the sliding vane solid ring 49, meanwhile, when the welding end 43 needs to be contacted with the welding point first, the rotating shaft end 59 is contacted with the welding point first and pushes the protective cylinder 47 to move and pushes the outer spring to be pressed, then, after the elastic arc piece 48 sliding on the inner side of the rotating shaft end 59 contacts with the tail end of the welding end 43, the welding slag remained on the welding end 43 is scraped off, so that the welding slag is prevented from adhering to the port of the welding end 43 to influence the welding effect, meanwhile, when the sliding vane fixing ring 49 can be used for assisting in positioning the welding position, the structure of the rest positions is prevented from being burnt and welded through due to the fact that the welding arc of the welding end 43 exceeds the range of the sliding vane fixing ring 49, the structural strength is influenced, when the welding end 43 is not contacted with a welding piece, the spring releases elasticity to push the protective cylinder 47 to reset to cover the welding end 43, the port of the welding end 43 is protected, the welding end 43 is prevented from being worn to influence the welding effect, the mixed-flow water turbine runner is composed of an upper crown, a lower ring and blades, and the upper crown and the lower ring are respectively welded with the blades.
The rear end of the bottom plate 41 is provided with a lifting device 5, the lifting device 5 comprises a lower pressing plate 51, a hinge plate diagonal rod 52, an inclined guide plate 53, an inclined plate groove rod 54, a lifting plate 55, a rotating shaft fixing seat 56, a bracket 57, a pry bar 58 and a rotating shaft end 59, the lower pressing plate 51 is fixedly connected to the rear side surface of the bottom plate 41, the hinge plate diagonal rod 52 is hinged to the bottom end side surface of the lower pressing plate 51, the inclined guide plate 53 is hinged to the front end of the hinge plate diagonal rod 52, the inclined plate groove rod 54 is fixedly connected to the front side surface of the supporting frame 1, the lifting plate 55 is hinged to the top end of the inclined guide plate 53, the rotating shaft fixing seat 56 is fixedly connected to the front side surface of the supporting frame 1, the bracket 57 is fixedly connected to the front end of the rotating shaft fixing seat 56, the pry bar 58 is hinged to the inner side of the bracket 57, the rotating shaft end 59 is rotatably connected to the inner side surface of the rotating shaft fixing seat 56, when the bottom plate 41 moves downwards, the lower pressing plate 51 is driven to move downwards, the lower pressure plate 51 is moved to push the connected hinge plate diagonal rod 52 to slide along the inclined plate groove rod 54, the tail end of the hinge plate diagonal rod 52 is slid to push the inclined guide plate 53 to move, the inclined guide plate 53 pulls the lifting plate 55 to deflect, the lifting plate 55 passes through the rotating shaft end 59 after being deflected, the rotating shaft end 59 is higher than the lifting plate 55 and is contacted with a welding piece, at the moment, the rotating shaft end 59 can be rotated to catch the welding piece, when the bottom plate 41 moves upwards again, the inclined guide plate 53 is pulled by the hinge plate diagonal rod 52 to lift one end of the lifting plate 55 upwards, the welding piece on the rotating shaft end 59 is pulled, and moves along the inclined guide plate 53, so that when the welding piece is taken down or placed, the welding piece can be moved or placed to a designated position without the help of a large lifting device such as a crane, the following welding work is facilitated, the inclined plate groove rod 54 is connected with the inclined guide plate 53 in a sliding manner, the top fixedly connected with of inclined plate groove pole 54 pushes down the montant, and pushes down montant and pinch bar 58 sliding connection, pivot end 59 and pinch bar 58 top sliding connection, simultaneously, when the top of inclined guide 53 pulls lifting plate 55 deflection, lifting plate 55 pushes down the montant through the top and exerts pressure on pinch bar 58, thereby let pinch bar 58 regard as the node upset with pivot end 59 to the workman adjusts the orientation of welding through manual rotation pivot end 59, in addition jack-up through pivot end 59 lifts the welding to appointed fixed position, in order to make things convenient for the welding to fix.
According to the working principle, when welding, the lifting plate 3 is contracted through the hydraulic rod 7 to move downwards and push the vertical sliding rod to drive the bottom plate 41 to move downwards, so that the mechanical arm 42 at the bottom side of the bottom plate 41 adjusts the vertical position and changes the welding position of the welding end 43, the mechanical arm 42 can rotate with the bottom plate 41 through the built-in drive to adjust the welding angle and cooperate with the movement of the bottom plate 41 to lift the coverage range of a welding point, so that the flexibility is improved, meanwhile, when the welding end 43 needs to be contacted with the welding point first, the rotating shaft end 59 firstly contacts with the welding point and pushes the protection cylinder 47 to move and push the outer spring to be pressed, then the elastic arc piece 48 sliding on the inner side of the rotating shaft end 59 contacts with the tail end of the welding end 43 to scrape off the welding slag reserved on the welding end 43, the welding slag is prevented from being attached to the port of the welding end 43, the welding end 43 is prevented from influencing the welding effect, meanwhile, the solid ring 49 can be used for assisting in positioning the welding position, the welding end 43 is prevented from exceeding the range of the solid ring 49, the rest position structure is prevented from being influenced by arc penetration, and structural strength is influenced, and when the welding end 43 is not contacted with a welding piece, the spring releases elasticity to push the protection cylinder 47 to push the protection cylinder to reset the welding end 43 to reset to the welding end 43, and the welding end 43 is prevented from being influenced by the welding effect.
When the bottom plate 41 moves downwards, the lower pressing plate 51 is driven to move downwards, the lower pressing plate 51 moves to push the connected hinge plate inclined rod 52 to slide along the inclined plate groove rod 54, the tail end of the hinge plate inclined rod 52 slides to push the inclined guide plate 53 to move, the inclined guide plate 53 pulls the lifting plate 55 to deflect, the lifting plate 55 passes through the rotating shaft end 59 after being deflected, the rotating shaft end 59 is higher than the lifting plate 55 and then contacts with a welding piece, at the moment, the rotating shaft end 59 can be rotated, so that the welding piece is caught by the rotating shaft end 59, when the bottom plate 41 moves upwards again, the inclined guide plate 53 is pulled by the hinge plate inclined rod 52 to lift one end of the lifting plate 55 upwards, the welding piece on the rotating shaft end 59 is dragged along the inclined guide plate 53, so that when the welding piece is taken down or placed, the welding piece can be moved or placed to a designated position under the condition that large lifting equipment such as a crane is not used, the following welding work is facilitated, meanwhile, the lifting plate 55 presses down the rotating shaft end 58 through the top end of the inclined guide plate 53 to press the lifting plate 55, so that the rotating shaft end 58 presses the rotating shaft end 58 downwards, and thus the rotating shaft end 57 is pressed against the rotating bracket 59 to lift the welding piece 59 upwards, and the welding piece is conveniently and the welding piece is fixed by the rotating position of the rotating shaft end 59.
Referring to fig. 1-8, in another embodiment of the present invention, a turning device 6 is disposed below the hinge plate diagonal rod 52, the turning device 6 includes a side carriage 61, a connecting vertical rod 62, a vertical moving slide plate 63, a turning ring fixing block 64, a turning ring 65, a pressing slide cylinder 66, a slide rod frame 67, a threaded rod 68, a slide cylinder guide plate 69, a spring fixing plate 610, a turning compression rod 611, a pressing rubber ring 612, the side slide frame 61 is slidingly connected to the outer side of the support frame 1, the connecting vertical rod 62 is fixedly connected to the inner side of the side slide frame 61, the vertical moving slide plate 63 is slidingly connected to the inner side of the support frame 1, the turning ring fixing block 64 is fixedly connected to the inner side of the vertical moving slide plate 63, the turning ring 65 is rotationally connected to the outer side of the turning ring fixing block 64, the slide cylinder guide plate 69 is fixedly connected to the side of the turning ring 65, the pressing slide cylinder 66 is slidingly connected to the middle position of the inner side of the slide cylinder guide plate 69, the slide bar frame 67 is fixedly connected with the outer surface of the pressing slide tube 66, the threaded rod 68 is in threaded connection with the axis of the slide bar frame 67, the spring fixing plate 610 is fixedly connected with the inner wall of the pressing slide tube 66, the turnover pressing rod 611 is hinged with the inner end of the pressing slide tube 66, the end of the turnover pressing rod 611 is hinged with the pressing rubber ring 612, the hinge plate inclined rod 52 is upwards moved and lifted through the lower pressing plate 51 and simultaneously contacts with the bottom side of the pressing slide tube 66 and drives the pressing slide tube 66 to be upwards lifted together, the turnover ring 65 connected with the slide tube guide plate 69 is upwards moved, the turnover ring 65 drives the vertical moving slide plate 63 connected with the turnover ring fixing block 64 to move, the vertical moving slide plate 63 upwards moves the connecting vertical rod 62, the connecting vertical rod 62 is enabled to be attached to the side of the support frame 1 through the side sliding frame 61 to provide support, the pressing slide tube 66 and the connecting structure thereof are upwards moved together to adjust the fixing position, the vertical moving sliding plate 63 is fixedly connected with the connecting vertical rod 62 according to the position of the welding piece, a spring is fixedly connected to the side face of the spring fixing plate 610, one end of the spring is fixedly connected with the spring fixing plate 610, the other end of the spring is fixedly connected with the overturning pressing rod 611, the surface of the hinge plate inclined rod 52 is attached to the bottom face of the pressing sliding cylinder 66, meanwhile, when an external motor connected with the threaded rod 68 drives the threaded rod 68 to rotate through an output shaft, the threaded rod 68 pushes the sliding rod frame 67 to slide with the sliding cylinder guide plate 69, so that the sliding rod frame 67 pushes the pressing sliding cylinder 66 to be close to the welding piece, at this time, a pressing rubber ring 612 connected with the overturning pressing rod 611 on the inner side of the pressing sliding cylinder 66 is close to the welding piece, the area attached to the welding piece is increased through deformation of the pressing rubber ring 612, the pressing rubber ring 612 is pushed to deflect the overturning pressing rod 611 and press the spring, the spring is pushed to be pressed, the overturning pressing rod 611 is supported by the spring to keep a fixed state, after the pressing rubber ring 612 is driven by the external motor, the two sides of the pressing sliding cylinder 66 are not mutually close, the threaded rod 68 is driven to rotate, so that the pressing rubber ring 68 is driven to rotate and the pressing rubber ring 66 is driven to rotate, the threaded rod 66 is driven to rotate upwards, and the other end of the pressing sliding rod 66 is welded to be welded to the other end through the rotating plate 66, and the rotating body is welded to the rotating body through the pressing rod 66.
The front side of the bottom plate 41 is provided with a protection device 8, the protection device 8 comprises a lifting connecting plate 81, a top guard plate 82, a tooth shaft seat 83, an inner guard plate 84, rotating shaft teeth 85 and a driving toothed plate 86, the lifting connecting plate 81 is fixedly connected to the front side of the bottom plate 41, the top guard plate 82 is fixedly connected to the tail end of the front side of the lifting connecting plate 81, the tooth shaft seat 83 is fixedly connected to the rear side of the top guard plate 82, the rotating shaft teeth 85 are rotationally connected to the side of the tooth shaft seat 83, the inner guard plate 84 is in meshed connection to the side of the rotating shaft teeth 85, the driving toothed plate 86 is fixedly connected to the side of the support frame 1, when the bottom plate 41 moves downwards to prepare for welding, the bottom plate 41 moves downwards to drive the top guard plate 82 connected to the lifting connecting plate 81 to move downwards, the top guard plate 82 moves downwards along with the rotating shaft teeth 85, the inner guard plate 84 is in sliding connection with the top guard plate 82, the driving toothed plate 86 is meshed with the rotating shaft teeth 85, the rotating shaft teeth 85 can be meshed with the side of the inner guard plate 84, and accordingly the inner guard plate 84 is meshed with the rack 84, the top guard plate 84 is meshed with the side of the inner guard plate 84, and the top guard plate is prevented from being damaged by the welding personnel, and the welding personnel is prevented from being caused by the welding process.
The working principle is that the hinge plate diagonal rod 52 is lifted up through the lower pressing plate 51 and simultaneously contacts with the bottom side of the pressing sliding cylinder 66 to drive the pressing sliding cylinder 66 to lift up together, the lifting of the pressing sliding cylinder 66 drives the turning ring 65 connected with the sliding cylinder guide plate 69 to move upwards, the turning ring 65 drives the vertical sliding plate 63 connected with the rotating ring fixing block 64 to move, the vertical sliding plate 63 moves upwards and drives the connecting vertical rod 62 to move, so that the connecting vertical rod 62 is supported by the side sliding frame 61 by attaching the side sliding frame 1, the pressing sliding cylinder 66 and the structure connected with the pressing sliding cylinder are upwards moved together to adjust the fixing position, so that small amplitude adjustment is carried out according to the position of a welding piece, meanwhile, when an external motor connected with the threaded rod 68 drives the pressing sliding cylinder guide plate 69 to rotate through an output shaft, the threaded rod 68 pushes the pressing sliding rod frame 67 to slide with the sliding cylinder guide plate 69, the pressing sliding rod 66 is pushed to be close to a welding piece, at this moment, a pressing rubber ring 612 connected with the inner side of the pressing sliding cylinder 66 is close to the welding piece, the pressing rubber ring 611 is deformed by the pressing rubber ring 611 to increase the area of the welding piece to achieve the fixing effect, the pressing rubber ring 612 is attached to the welding piece, the pressing sliding rod is pushed by the pressing rubber ring is contacted with the pressing sliding rod body, the pressing sliding rod 66 is pressed by the pressing sliding rod 66, the pressing sliding rod is pressed by the pressing sliding rod 66 is kept to the pressing sliding rod 66 by the pressing sliding rod 66, and the pressing rod 66 is rotated by the pressing sliding rod 66 by the pressing rod 67, and the pressing rod is kept to be close to the welding piece by the welding piece, and the pressing rod is attached by the pressing rod is rotated by the pressing rod 66, so that after one end is welded, the other end is turned upwards to finish the subsequent welding process.
When the bottom plate 41 moves downwards to prepare for welding work, the bottom plate 41 moves downwards to drive the top guard plate 82 connected with the lifting connecting plate 81 to move downwards, and the rotating shaft teeth 85 connected with the side surface tooth shaft seats 83 are meshed with the driving toothed plate 86 when the top guard plate 82 moves downwards, so that the top guard plate 82 moves downwards along with the rotation of the rotating shaft teeth 85, the rotating shaft teeth 85 rotate to be meshed with racks on the side surfaces of the inner guard plates 84, the inner guard plates 84 are attached to the top guard plate 82 to extend in a sliding mode until the top guard plate 82 and the inner guard plates 84 block the front side of the support frame 1, and injuries to observers caused by welding slag sputtering in the welding process are prevented, so that a protective effect is achieved.
A welding method of a mixed-flow turbine runner welding device, comprising:
s1: during welding, the lifting plate 3 is contracted through the hydraulic rod 7 to move downwards, the vertical sliding rod is pushed to drive the bottom plate 41 to move downwards, the lower pressing plate 51 is moved to push the connected hinge plate inclined rod 52 to slide along the inclined plate groove rod 54, the tail end of the hinge plate inclined rod 52 is slid to push the inclined guide plate 53 to move, the inclined guide plate 53 is used for pulling the lifting plate 55 to deflect, and at the moment, a welding part is pushed to the lifting plate 55 through the inclined guide plate 53;
s2: when the bottom plate 41 moves upwards again, the inclined guide plate 53 is pulled by the hinge plate inclined rod 52 to enable one end of the lifting plate 55 to lift upwards, and the welding piece on the rotating shaft end 59 is pulled;
s3: when the external motor connected with the threaded rod 68 drives the threaded rod 68 to rotate through the output shaft, the threaded rod 68 pushes the sliding rod frame 67 and the sliding cylinder guide plate 69 to slide, so that the sliding rod frame 67 pushes the pressing sliding cylinder 66 to be close to the welding piece, and at the moment, the pressing rubber ring 612 connected with the inner side overturning pressing rod 611 of the pressing sliding cylinder 66 is close to the welding piece;
s4: the vertical moving slide plate 63 moves upwards to drive the connecting vertical rod 62 to move, the connecting vertical rod 62 is attached to the side surface of the support frame 1 through the side sliding frame 61 to provide support, and the pressing sliding cylinder 66 and the connecting structure thereof move upwards together to adjust the fixed position so as to adjust the fixed position in a small amplitude according to the position of the welding part;
s5: the mechanical arm 42 at the bottom side of the bottom plate 41 is used for adjusting the vertical position and changing the welding position at the welding end 43, and the mechanical arm 42 can rotate with the bottom plate 41 through built-in driving to adjust the welding angle;
s6: when the welding end 43 needs to be contacted with the welding point first, the rotating shaft end 59 is contacted with the welding point first and pushes the protective cylinder 47 to move and push the outer spring to be pressed, and then the elastic arc piece 48 sliding on the inner side of the rotating shaft end 59 is contacted with the tail end of the welding end 43 to scrape off the welding slag remained on the welding end 43;
s7: when one end of the welding piece is welded and the other end is turned upwards, the threaded rod 68 is continuously rotated to enable the threaded rod 68 to drive the sliding rod frame 67 and the pressing sliding cylinder 66 to rotate together, and the pressing sliding cylinder 66 slides to rotate on the outer side of the rotating ring fixing block 64 through the rotating shaft fixing seat 56 connected with the sliding cylinder guide plate 69, so that the welding piece is turned over through rotation.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a mixed flow hydraulic turbine runner welding set, includes support frame (1), its characterized in that: the top end of the supporting frame (1) is fixedly connected with a top plate (2), a lifting plate (3) is arranged on the top side of the top plate (2), and a hydraulic rod (7) is fixedly connected with the inner side of the lifting plate (3);
the welding assembly comprises a bottom plate (41), a mechanical arm (42), a welding end (43), a sleeve ring (44), a shrinkage connecting rod (45), an extension rod (46), a protection barrel (47), an elastic arc piece (48) and a sliding sheet fixed ring (49), wherein the bottom plate (41) is arranged right below the top plate (2), the mechanical arm (42) is arranged at the bottom side of the bottom plate (41), the welding end (43) is fixedly connected to the tail end of the bottom side of the mechanical arm (42), the sleeve ring (44) is fixedly connected to the outer side surface of the welding end (43), the shrinkage connecting rod (45) is fixedly connected to the side surface of the sleeve ring (44), the extension rod (46) is slidably connected to the tail end of the shrinkage connecting rod (45), the protection barrel (47) is slidably connected to the outer side of the welding end (43), the elastic arc piece (48) is fixedly connected to the outer side surface of the protection barrel (47), and the sliding sheet fixed ring (49) is fixedly connected to the tail end side surface of the protection barrel (47).
The bottom surface of the lifting plate (3) is fixedly connected with a vertical sliding rod, the bottom end of the vertical sliding rod is fixedly connected with the bottom plate (41), the sliding sheet fixing ring (49) is fixedly connected with the extension rod (46), a spring is arranged on the outer side of the welding end (43), one end of the spring is fixedly connected with the lantern ring (44), and the other end of the spring is fixedly connected with the sliding sheet fixing ring (49);
the lifting device (5) is arranged at the rear end of the bottom plate (41), the lifting device (5) comprises a lower pressing plate (51), a hinge plate inclined rod (52), an inclined guide plate (53), an inclined plate groove rod (54), a lifting plate (55), a rotating shaft fixing seat (56), a bracket (57), a prying rod (58) and a rotating shaft end (59), the lower pressing plate (51) is fixedly connected to the rear side surface of the bottom plate (41), the hinge plate inclined rod (52) is hinged to the bottom end side surface of the lower pressing plate (51), the inclined guide plate (53) is hinged to the front side end of the hinge plate inclined rod (52), the inclined plate groove rod (54) is fixedly connected to the front side surface of the supporting frame (1), the lifting plate (55) is hinged to the top end of the inclined guide plate (53), the rotating shaft fixing seat (56) is fixedly connected to the front side surface of the supporting frame (1), the bracket (57) is fixedly connected to the front end of the rotating shaft fixing seat (56), the prying rod (58) is hinged to the inner side of the bracket (57), and the rotating shaft end (59) is connected to the rotating shaft fixing seat (56) in a rotating mode;
the tilting plate groove rod (54) is in sliding connection with the tilting guide plate (53), a pressing vertical rod is fixedly connected to the top end of the tilting plate groove rod (54), the pressing vertical rod is in sliding connection with the prying bar (58), and the rotating shaft end (59) is in sliding connection with the top end of the prying bar (58).
2. The francis turbine runner welding apparatus of claim 1, wherein: the lower part of the hinge plate diagonal rod (52) is provided with a turnover device (6), the turnover device (6) comprises a side sliding frame (61), a connecting vertical rod (62), a vertical moving sliding plate (63), a rotating ring fixing block (64), a turnover ring (65), a pressing sliding cylinder (66), a sliding rod frame (67), a threaded rod (68), a sliding cylinder guide plate (69), a spring fixing plate (610), a turnover pressing rod (611) and a pressing rubber ring (612), the side sliding frame (61) is in sliding connection with the outer side surface of the supporting frame (1), the connecting vertical rod (62) is fixedly connected with the inner side of the side sliding frame (61), the vertical moving sliding plate (63) is in sliding connection with the inner side surface of the supporting frame (1), the rotating ring fixing block (64) is fixedly connected with the inner side of the vertical moving sliding plate (63), the turnover ring (65) is in rotating connection with the outer side of the rotating ring fixing block (64), the sliding cylinder (69) is fixedly connected with the side surface of the turnover ring (65), the pressing sliding cylinder (66) is in sliding connection with the middle position of the inner side of the sliding cylinder guide plate (69), the sliding rod (67) is fixedly connected with the threaded rod (67) at the outer side of the pressing ring (66), the overturning pressing rod (611) is hinged to the inner end of the pressing sliding cylinder (66), and the end of the overturning pressing rod (611) is hinged to the pressing rubber ring (612).
3. The francis turbine runner welding apparatus of claim 2, wherein: the vertical moving slide plate (63) is fixedly connected with the connecting vertical rod (62), the side face of the spring fixing plate (610) is fixedly connected with a spring, one end of the spring is fixedly connected with the spring fixing plate (610), the other end of the spring is fixedly connected with the overturning pressing rod (611), and the surface of the hinge plate inclined rod (52) is attached to the bottom face of the pressing slide cylinder (66).
4. The francis turbine runner welding apparatus of claim 3, wherein: the front side of bottom plate (41) is provided with protector (8), protector (8) are including lifting link plate (81), top guard plate (82), tooth axle bed (83), inner guard plate (84), pivot tooth (85), drive pinion rack (86), lifting link plate (81) fixed connection is at the front side of bottom plate (41), top guard plate (82) fixed connection is at the front side end of lifting link plate (81), tooth axle bed (83) fixed connection is at the trailing flank of top guard plate (82), pivot tooth (85) rotate the side of connecting at tooth axle bed (83), inner guard plate (84) meshing is connected at the side of pivot tooth (85), drive pinion rack (86) fixed connection is at the side of support frame (1).
5. The francis turbine runner welding apparatus of claim 4, wherein: the inner guard plate (84) is in sliding connection with the top guard plate (82), the driving toothed plate (86) is in meshed connection with the rotating shaft teeth (85), and racks are arranged on the side face of the inner guard plate (84).
6. A welding method of a francis turbine runner welding apparatus, using the francis turbine runner welding apparatus of claim 5, characterized in that: comprising the following steps:
s1: during welding, the lifting plate (3) moves downwards through contraction of the hydraulic rod (7) and pushes the vertical sliding rod to drive the bottom plate (41) to move downwards, the lower pressing plate (51) moves and pushes the connected hinge plate inclined rod (52) to slide along the inclined plate groove rod (54), the tail end of the hinge plate inclined rod (52) slides and pushes the inclined guide plate (53) to move, the inclined guide plate (53) pulls the lifting plate (55) to deflect, and at the moment, the welding piece is pushed onto the lifting plate (55) through the inclined guide plate (53);
s2: when the bottom plate (41) moves upwards again, the inclined guide plate (53) is pulled by the hinged plate inclined rod (52) to enable one end of the lifting plate (55) to lift upwards, and a welding piece on the rotating shaft end (59) is pulled;
s3: when an external motor connected with the threaded rod (68) drives the threaded rod (68) to rotate through an output shaft, the threaded rod (68) pushes the sliding rod frame (67) and the sliding cylinder guide plate (69) to slide, so that the sliding rod frame (67) pushes the pressing sliding cylinder (66) to be close to a welding piece, and at the moment, a pressing rubber ring (612) connected with a turnover pressing rod (611) at the inner side of the pressing sliding cylinder (66) is close to the welding piece;
s4: the vertical moving slide plate (63) moves upwards to drive the connecting vertical rod (62) to be attached to the side surface of the supporting frame (1) through the side sliding frame (61) to provide support, and the pressing sliding cylinder (66) and the connecting structure thereof move upwards together to adjust the fixed position so as to adjust the position of the welding part in a small range;
s5: a mechanical arm (42) at the bottom side of the bottom plate (41) is used for adjusting the vertical position and changing the welding position of the welding end (43), and the mechanical arm (42) can rotate with the bottom plate (41) through built-in driving to adjust the welding angle;
s6: when the welding end (43) needs to be contacted with a welding point, the sliding vane fixed ring (49) is contacted with the welding point firstly, pushes the protection cylinder (47) to move and pushes the outer spring to be pressed, and then the elastic arc piece (48) sliding on the inner side of the sliding vane fixed ring (49) is contacted with the tail end of the welding end (43) to scrape off the welding slag remained on the welding end (43);
s7: when one end of the welding piece is welded and the other end is turned upwards, the threaded rod (68) is continuously rotated to enable the threaded rod (68) to drive the sliding rod frame (67) and the pressing sliding cylinder (66) to rotate together, and the pressing sliding cylinder (66) slides to rotate on the outer side of the rotating ring fixing block (64) through the rotating shaft fixing seat (56) connected with the sliding cylinder guide plate (69), so that the welding piece is turned over through rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311733260.5A CN117415415B (en) | 2023-12-18 | 2023-12-18 | Runner welding device and welding method for mixed-flow turbine |
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| CN202311733260.5A CN117415415B (en) | 2023-12-18 | 2023-12-18 | Runner welding device and welding method for mixed-flow turbine |
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| CN117415415B true CN117415415B (en) | 2024-03-12 |
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| CN205218395U (en) * | 2015-12-16 | 2016-05-11 | 江西省左氏实业有限公司 | Hydraulic turbine runner welding jig |
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| Publication number | Publication date |
|---|---|
| CN117415415A (en) | 2024-01-19 |
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