CN115625473A - Modular aluminum tower welding process and device - Google Patents
Modular aluminum tower welding process and device Download PDFInfo
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- CN115625473A CN115625473A CN202211223678.7A CN202211223678A CN115625473A CN 115625473 A CN115625473 A CN 115625473A CN 202211223678 A CN202211223678 A CN 202211223678A CN 115625473 A CN115625473 A CN 115625473A
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- 238000003466 welding Methods 0.000 title claims abstract description 73
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241000736911 Turritella communis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a modular aluminum tower welding process and a device in the technical field of modular aluminum tower welding, and the modular aluminum tower welding process and the device comprise a module ring barrel, wherein the module ring barrel is sequentially welded to form a tower, the lower end of the module ring barrel is provided with a plurality of support modules along the axis of the module ring barrel, each support module comprises a U-shaped base, a first pin shaft is fixedly arranged on the base, four support plates are rotatably connected onto the first pin shaft, every two support plates form a group, and a flexible assembly is rotatably connected between two support plates on the same side and the other two support plates; the invention effectively solves the problem that in order to adapt to towers of various types, a plurality of welding tools adopt Y-shaped structures so as to adapt to the welding of towers of different types and radiuses, because the towers are clamped in the Y-shaped tools and only two points of the outer side wall are in contact, the towers can be filled with various fillers according to different purposes, the towers are heavier, the shell of the tower deforms, and the towers are damaged and unqualified.
Description
Technical Field
The invention relates to the technical field of welding of modular aluminum towers, in particular to a welding process and a welding device for modular aluminum towers.
Background
The tower is a cylindrical welding structure process device, which is composed of a cylinder body, a seal head (or called a cover head) and a support. Is a non-standard device specially designed and manufactured for a certain production process requirement. The tower is a vertical device used for chemical unit operations such as distillation, purification, absorption, rectification and the like, and is widely used for mass transfer and heat transfer between gas-liquid and liquid-liquid phases. The tower can be divided into a plate tower and a packed tower according to the structural classification of the tower internals. If the container only holds materials and does not carry out chemical reaction and other physical and chemical processes, no facilities or simple auxiliary structures are provided inside the container, and the container is also called a tank. The containers are classified into a vertical type (the axis is vertical) and a horizontal type (the axis is horizontal) according to types. The tower mostly belongs to a pressure vessel.
Because the tower is whole great, current tower adopts the modularization to make usually, carry out the integral welding again, because the tower is whole higher during the welding, adopt horizontal welding usually, but because the tower model diverse, thereby lead to tower diameter diverse, because the whole radius of tower is great, in order to adapt to various model towers, a lot of welding frock adopts the structure of Y type, thereby adapt to the tower welding of different model radiuses, because the tower card is inside the frock of Y type, only two point contact of lateral wall usually, wherein the tower still can fill various fillers according to different usage, lead to tower self heavier, thereby make the tower shell appear warping, thereby lead to the tower to appear damaging nonconforming.
Disclosure of Invention
The invention aims to provide a welding process and a welding device for a modular aluminum tower and briefly summarize innovation points.
In order to achieve the purpose, the invention provides the following technical scheme: modularization aluminium system tower ware welding set, including module ring bucket, module ring bucket welds the tower ware that forms in proper order, module ring bucket lower extreme is provided with a plurality of support modules along its axis, support the module and include the base of U type, the fixed first round pin axle that is provided with on the base, it has four backup pads to rotate on the first round pin axle, per two the backup pad becomes a set of, with two with one side rotate between backup pad and two other backup pads and be connected with flexible assembly, flexible assembly up end and the contact of module ring bucket outer wall, flexible assembly length is less than the length of two backup pads and, with two of one side rotate between the one end that first round pin axle was kept away from to the backup pad and be connected with the elasticity rope, the other one end of elasticity rope rotates to be connected between two other the one end that first round pin axle was kept away from to the backup pad, first round pin axle lower extreme is fixed to be provided with the guide block, the guide block lower extreme lateral wall is seted up and is used for supporting the first arc groove of elasticity rope, the fixed four spacer pins that are used for limiting the backup pad turned angle that are provided with.
As a further scheme of the invention, the flexible assembly comprises a plurality of long round blocks, connecting shafts are rotatably arranged at two ends of each long round block, a long round plate is rotatably arranged between two sides of each two adjacent long round blocks, two ends of each long round plate are rotatably connected to the outer wall of each connecting shaft, the long round blocks at two ends are rotatably arranged between each group of supporting plates at two sides through the connecting shafts, and a supporting wheel set for driving the supporting module ring barrel to rotate is arranged on each long round plate.
As a further scheme of the invention, the supporting wheel set comprises a plurality of U-shaped supporting frames, each supporting frame is respectively arranged on the side wall of the long round block, a rolling shaft is rotatably arranged at the upper end of each supporting frame, a roller is coaxially and fixedly arranged on the outer wall of the center of the rolling shaft, the cross section of the axis of the roller is in an oblong shape, and a self-rotation mechanism for driving the roller to rotate is arranged on the side wall of each supporting frame.
As a further scheme of the invention, an angle shaft is fixedly arranged at the lower end of the supporting frame, the angle shaft penetrates through the long round block and is rotatably connected with the long round block, a cavity is arranged in the long round block, a worm wheel is arranged on the outer wall of the angle shaft in the cavity, a worm is arranged on the outer wall of the connecting shaft in the cavity, the two worms on the same long round block are opposite in spiral direction, a first synchronous belt is sleeved at the outer ends of the two connecting shafts on the same long round plate, two meshed synchronous gears are coaxially and fixedly connected at the outer ends of the two connecting shafts on the same long round block respectively, and an angle device for driving the first synchronous belt to rotate is arranged in one of the first synchronous belts.
As a further scheme of the invention, the rotation mechanism comprises a plurality of rotation shafts, the rotation shafts are respectively rotatably connected to the centers of the angle shafts, the rotation shafts penetrate through the support frame and are rotatably connected with the support frame, a first synchronizing wheel is coaxially and fixedly arranged at one end of each rotation shaft positioned in the support frame, a second synchronizing belt is sleeved at the outer end of each first synchronizing wheel, a bevel gear rod is rotatably connected to the side wall of the support frame, a first bevel gear is meshed at the upper end of each bevel gear rod, the first bevel gear is coaxially and fixedly arranged at the end of the corresponding roller, a second synchronizing wheel is coaxially and fixedly arranged at the lower end of each bevel gear rod, the second synchronizing wheel is sleeved in the second synchronizing belt, and a rotation device for driving all the rotation shafts to rotate at the same speed is arranged at the lower end of each rotation shaft penetrating through the angle shaft.
As a further scheme of the invention, the rotation device comprises a plurality of friction wheels, annular grooves are formed in side walls of the friction wheels, guide inclined planes are formed in the outer edges of the annular grooves, elastic belts are commonly sleeved in the annular grooves of the friction wheels, the sections of the elastic belts are circular, a first circular shaft is vertically and rotatably connected to the lower end surfaces of the two long circular plates at the lowest end, the friction wheels are coaxially and fixedly arranged at the outer ends of the first circular shaft, a fixed block is fixedly arranged at the upper end of the first pin shaft, the first circular shaft is vertically sleeved in the fixed block, a rotation synchronizing wheel is fixedly arranged on the outer wall of the first circular shaft positioned at the upper end surface of the fixed block, and the rotation synchronizing wheel is rotatably arranged on the upper end surface of the fixed block.
As a further scheme of the invention, the angle device comprises a bearing shaft, the bearing shaft is transversely and rotatably arranged on the side walls of the two long circular plates at the lowest end, one end of the bearing shaft is sleeved inside the first synchronous belt, the other end of the bearing shaft is coaxially and fixedly connected with a second bevel gear, the outer end of the second bevel gear is meshed with a third bevel gear, the upper end of the third bevel gear is large, the lower end of the third bevel gear is small, a spline shaft is axially and slidably arranged in the center of the third bevel gear, the spline shaft is rotatably arranged on the fixed block, and an angle synchronous wheel is coaxially and fixedly arranged on the outer wall of the lower end of the spline shaft.
As a further aspect of the present invention, the rotation synchronizing wheels of all the supporting modules are sleeved in the same power synchronizing band driven by external power, and the angle synchronizing wheels of all the supporting modules are sleeved in the same angle synchronizing band driven by external power.
A modular aluminum tower welding process comprises the following specific steps:
the method comprises the following steps: firstly, assembling the support modules of the device in an array mode, fixing and arranging the base on the ground, ensuring that a plurality of first pin shafts are in a coaxial state, combining the support modules according to the length of a tower, and fixedly arranging the conventional welding gun to a fixed position in the support modules, wherein the welding gun can move back and forth to be close to the tower module;
step two: when the module ring barrel is placed at the upper end of the supporting plate, the V-shaped opening of the supporting plate is reduced, the long round block and the long round plate can automatically form a supporting track similar to a circular arc under the action of the connecting shaft, polygonal supporting surfaces of the long round block and the long round plate are tangent to the circle of the outer wall of the module ring barrel, and the roller supports the outer wall of the module ring barrel by radial stress;
step three: the existing power is driven to drive the autorotation synchronizing wheel to rotate, so that the autorotation shaft autorotates, welding seams of the two module ring barrels synchronously rotate, welding is carried out through the existing welding gun with fixed stations, and the rollers drive the module ring barrels to autorotate, so that the supporting points of the rollers on the module ring barrels are always in a changed state;
step four: carry out the axial displacement formula to module ring bucket when needs, the indirect drive gyro wheel of outside power drive angle synchronizing wheel rotates round module ring bucket strong point radial axis, and the gyro wheel rotation, the rotation appears in module ring bucket and moves along module ring bucket axis, carries out certain axial transportation to module ring bucket.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the upper ends of the two groups of support plates on two sides are connected with the flexible assembly, so that when the module ring barrel is placed at the upper end of the support plate, the V-shaped opening of the support plate is reduced, the flexible assembly can be attached to the outer wall of the module ring barrel of the tower to change the curvature, and the support point of the outer wall of the tower is increased, so that the problem that when a conventional Y-shaped tool clamp supports the tower, two points of support are formed, and the tower is deformed is effectively solved, and then the V-shaped support is formed by the support plates with variable openings, and the V-shaped openings can be automatically changed according to the radius of the tower, so that equipment can support towers of different models; the applicability of the equipment is improved.
2. According to the invention, the self-rotation mechanism is adopted to drive the roller to rotate, so that the welding seams of the two module ring barrels synchronously rotate, and then the welding is carried out by the existing welding gun with a fixed station, so that the problem that the welded tower is inconvenient to take out and feed due to the fact that welding equipment rotating around the module ring barrels is conventionally adopted and tracks need to be laid is solved, and then the long round block and the long round plate are subjected to the action of a plurality of long round plates and connecting shafts to enable the plane of the long round block and the long round plate close to the side wall of the module ring barrel of the tower to be tangent with the circle of the outer wall of the module ring barrel, so that the roller supports the outer wall of the module ring barrel by radial stress, and the problem that the outer wall of the tower is deviated in stress direction and abnormal deformation is caused is solved; further adopt the gyro wheel to drive module ring bucket rotation to make the supporting point of gyro wheel to module ring bucket be in the change state always, avoid adopting static support mode, lead to module ring bucket local stress great, lead to the ring bucket to appear metal fatigue, thereby lead to module ring bucket to appear deforming damage.
3. According to the invention, the angle synchronizing wheel is driven by external power to indirectly drive the idler wheel to rotate around the radial axis of the supporting point of the module ring barrel, when the rotation mechanism works, the idler wheel rotates, the module ring barrel rotates and moves along the axis of the module ring barrel, and certain axial transportation is carried out on the module ring barrel, so that the condition that multiple times of hoisting and position changing are needed when a plurality of module ring barrels are welded to carry out butt joint on welding seams is avoided, and the working efficiency is low; secondly when carrying out the axial transportation to module ring bucket, adopt spiral transport mode to avoid forming a line of axis direction to module ring bucket strong point, thereby lead to the problem that metal fatigue appears in module ring bucket outer wall.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the support module of the present invention;
FIG. 3 is a schematic top view, partially in section, of the front left side of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 3 at C according to the present invention;
FIG. 7 is a top view, partially in section, of the left rear side of the present invention;
FIG. 8 is an enlarged view of the structure of FIG. 7 at D according to the present invention;
FIG. 9 is an enlarged view of E of FIG. 7 according to the present invention;
FIG. 10 is an enlarged view of the structure of FIG. 7 at F according to the present invention;
FIG. 11 is an enlarged view of FIG. 7 at G according to the present invention;
FIG. 12 is a schematic diagram of the overall process flow of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the module ring barrel 10, a base 11, a first pin shaft 12, a support plate 13, an elastic rope 14, a guide block 15, a first arc groove 16, a limit pin 17, a long round block 20, a connecting shaft 21, a long round plate 22, a support frame 25, a rolling shaft 26, a roller 27, an angle shaft 30, a cavity 31, a worm wheel 32, a worm 33, a first synchronous belt 34, a synchronous gear 35, a rotation shaft 37, a first synchronous wheel 38, a second synchronous belt 39, a bevel gear rod 40, a first bevel gear 41, a second synchronous wheel 42, a friction wheel 45, a ring groove 46, a guide inclined plane 47, an elastic belt 48, a first round shaft 49, a fixed block 50, a rotation synchronous wheel 51, a bearing shaft 53, a second bevel gear 54, a third bevel gear 55, a spline shaft 56 and a synchronous wheel 57.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 12, the present invention provides a technical solution: a modularized aluminum tower welding device comprises a module ring barrel 10, the module ring barrel is sequentially welded to form a tower, the lower end of the module ring barrel 10 is provided with a plurality of supporting modules along the axis of the module ring barrel, each supporting module comprises a U-shaped base 11, a first pin shaft 12 is fixedly arranged on each base 11, four supporting plates 13 are rotatably connected onto each first pin shaft 12, every two supporting plates 13 form a group, a flexible assembly is rotatably connected between two supporting plates 13 on the same side and the other two supporting plates, the upper end face of each flexible assembly is in contact with the outer wall of the module ring barrel 10, the length of each flexible assembly is smaller than the length sum of the two supporting plates 13, an elastic rope 14 is rotatably connected between one ends, far away from the first pin shaft 12, of the two supporting plates 13 on the same side, the other end of each elastic rope 14 is rotatably connected between one ends, far away from the first pin shaft 12, a guide block 15 is fixedly arranged at the lower end of the first pin shaft 12, a first arc groove 16 used for supporting the elastic rope 14 is arranged at the lower end of the guide block 15, and four limit pins 17 used for limiting the rotation angle of the supporting plates 13 are fixedly arranged on the side wall at the lower end of the guide block 15;
when the device is used, firstly, the support modules of the device are assembled in an array mode, meanwhile, the base 11 is fixedly arranged on the ground, and the first pin shafts 12 are ensured to be in a coaxial state and to be combined according to the length of a tower, the device is long, the device is a welding auxiliary device, an existing welding gun is fixedly arranged at a fixed position in the support modules, the welding gun can move back and forth to be close to the tower module, as shown in figure 1, after the device is installed, as shown in figure 2, the device is a single support module, as shown in figure 2, the upper end of the device is seen from the left to the right in figure 2, and an approximate front view 2 is the front end of the device;
when the device is used, when the tower module is not hoisted to the equipment, the support plates 13 on the left side and the right side can be pulled to rotate around the first pin shaft 12 under the action of the elastic rope 14 (as shown in figures 3 and 11, the lower support point of the elastic rope 14 is always positioned at the lower end of the first pin shaft 12 under the action of the first arc groove 16 formed in the outer wall of the guide block 15, so that the elastic rope 14 can be ensured to pull one end of the support plate 13 away from the first pin shaft 12 to rotate downwards, wherein the first arc groove 16 acts to avoid the problem that the service life of the elastic rope 14 is reduced due to abnormal abrasion of the elastic rope 14), one end of the support plate 13 away from the first pin shaft 12 is reduced, no matter which end of the support plate 13 rotates to be contacted with the limiting pin 17, after the support plate 13 on one side cannot rotate continuously, the elastic rope 14 can pull the support plates 13 on the two outer sides to rotate continuously until the support plates 13 on the other side are clamped on the limiting pin 17, thereby keeping the supporting plates 13 at the left and right sides to be opened statically in a V shape, because the length of the flexible assembly is less than the sum of the lengths of the two supporting plates 13, after the supporting plates 13 at the two sides are opened, the flexible assembly can be pulled open to keep the flexible assembly to be in a horizontal state, then the module ring barrels 10 are placed at the upper ends of the flexible assemblies one by one, the flexible assembly starts to bend downwards to form a radian under the action of the gravity of the module ring barrels 10, and simultaneously the supporting plates 13 at the two sides are pulled to rotate around the first pin shaft 12 to overcome the pulling force of the elastic rope 14, so that one ends of the supporting plates 13 far away from the first pin shaft 12 are lifted, and the module ring barrels 10 are held, wherein because the lower end faces of the module ring barrels 10 are supported by the continuity of the flexible assembly, the module ring barrels 10 are supported by a large area, and point support is avoided, the deformation problem of the module ring barrel 10 is caused, wherein when the module ring barrel 10 with a larger radius is placed along with the placement of the module ring barrels 10 with different radii, the contact position of the upper end of the support plate 13 and the module ring barrel 10 is closer to the outer wall of the lower end of the module ring barrel 10, otherwise, the contact position is closer to the upper end of the module ring barrel 10;
according to the invention, the upper ends of the two groups of support plates 13 on two sides are connected with the flexible assembly, so that when the module ring barrel 10 is placed at the upper end of the support plate 13, the V-shaped opening of the support plate 13 is reduced, the flexible assembly can be attached to the outer wall of the module ring barrel 10 of the tower to carry out curvature transformation, and the support point of the outer wall of the tower is increased, so that the problem that the tower is deformed due to the fact that two points of support are formed when a conventional Y-shaped tool clamp supports the tower is effectively solved, and secondly, the V-shaped support is formed by the support plates 13 with variable openings, and the V-shaped opening can be automatically changed according to the radius of the tower, so that equipment can support towers of different models; the applicability of the equipment is improved.
As a further scheme of the invention, the flexible assembly comprises a plurality of long round blocks 20, two ends of each long round block 20 are rotatably provided with connecting shafts 21, a long round plate 22 is rotatably arranged between two sides of each two adjacent long round blocks 20, two ends of each long round plate 22 are rotatably connected to the outer wall of each connecting shaft 21, the long round blocks 20 at two ends are rotatably arranged between each group of supporting plates 13 at two sides through the connecting shafts 21, and the long round plates 22 are provided with supporting wheel sets for driving the supporting module ring barrel 10 to rotate;
the supporting wheel set comprises a plurality of U-shaped supporting frames 25, each supporting frame 25 is arranged on the side wall of the long round block 20, a rolling shaft 26 is rotatably arranged at the upper end of each supporting frame 25, a rolling wheel 27 is coaxially and fixedly arranged on the outer wall of the center of each rolling shaft 26, the cross section of the axis of each rolling wheel 27 is in an oblong shape, and a self-rotating mechanism for driving each rolling wheel 27 to rotate is arranged on the side wall of each supporting frame 25;
when the welding device is used, as shown in fig. 3, when the module ring barrel 10 of the tower is placed on the upper end of the driving roller 27, the roller 27 is firstly extruded, the roller 27 is extruded to generate displacement, so that the supporting frame 25 generates displacement, the long circular block 20 is acted by a plurality of long circular plates 22 and connecting shafts 21, position change can occur, the long circular block 20 and the long circular plate 22 automatically form an approximately circular arc-shaped supporting track, and each side of a polygon formed by the long circular block 20 and the long circular plate 22 is rotationally connected by the connecting shafts 21, so that the plane of the long circular block 20 and the long circular plate 22, which is close to the side wall of the module ring barrel 10 of the tower, is tangent to the circle of the outer wall of the module ring barrel 10, so that the roller 27 supports the outer wall of the module ring barrel 10 by radial stress, and deflection does not occur, so that the module ring barrel 10 of the tower does not generate non-radial supporting force, so that the module ring barrel 10 of the module ring barrel 10 cannot generate non-radial stress, the problem that the welding device can rotate together to weld two modules 10 of the rotating module ring barrel 10, and the rotating module ring can be synchronously welded together, and the welding device can be completed by rotating module ring after two rotating, so that the welding device can be synchronously welded by rotating modules 10 by adopting the rotating module ring welding device, and rotating module ring welding device can be completed by adopting the rotating mechanism, and rotating module ring welding device, and the rotating mechanism can be completed by adopting the rotating mechanism, and the rotating module ring welding device can be completed simultaneously, therefore, the supporting points of the rollers 27 on the module ring barrel 10 are always in a changed state, and the problem that the module ring barrel 10 is deformed and damaged due to metal fatigue caused by large local stress of the module ring barrel 10 due to a static supporting mode is avoided;
according to the invention, the rotation mechanism is adopted to drive the roller 27 to rotate, so that welding seams of two module ring barrels 10 are synchronously rotated, and then welding is carried out through the existing welding gun at a fixed station, so that the problem that a welded tower is inconvenient to take out and feed due to the fact that welding equipment rotating around the module ring barrels 10 is conventionally adopted and tracks need to be laid is solved, and then the long circular blocks 20 are acted by a plurality of long circular plates 22 and connecting shafts 21 to enable the planes of the long circular blocks 20 and the long circular plates 22, which are close to the side walls of the module ring barrels 10 of the tower, to be tangent with the circle of the outer walls of the module ring barrels 10, so that the roller 27 supports the outer walls of the module ring barrels 10 by radial stress, and the problem that the tower is abnormally deformed due to the fact that the stress direction of the outer walls of the tower is deviated is avoided; further adopt gyro wheel 27 drive module ring bucket 10 rotation to make the supporting point of gyro wheel 27 to module ring bucket 10 be in the change state all the time, avoid adopting static support mode, lead to module ring bucket 10 local stress great, lead to the ring bucket to appear metal fatigue, thereby lead to module ring bucket 10 to appear deforming damage.
As a further scheme of the invention, an angle shaft 30 is fixedly arranged at the lower end of the support frame 25, the angle shaft 30 passes through the long round block 20 and is rotatably connected with the long round block 20, a cavity 31 is arranged inside the long round block 20, a worm wheel 32 is arranged on the outer wall of the angle shaft 30 positioned inside the cavity 31, a worm 33 is arranged on the outer wall of the connecting shaft 21 positioned inside the cavity 31, the spiral directions of the two worms 33 on the same long round block 20 are opposite, a first synchronous belt 34 is sleeved at the outer ends of the two connecting shafts 21 on the same long round block 22, two meshed synchronous gears 35 are coaxially and fixedly connected with the outer ends of the two connecting shafts 21 on the same long round block 20 respectively, and an angle device for driving the first synchronous belt 34 to rotate is arranged in one first synchronous belt 34;
the angle device comprises a bearing shaft 53, the bearing shaft 43 is transversely and rotatably arranged on the side walls of the two long circular plates 22 at the lowest end, one end of the bearing shaft 43 is sleeved inside the first synchronous belt 34, the other end of the bearing shaft is coaxially and fixedly connected with a second bevel gear 54, the outer end of the second bevel gear 45 is meshed with a third bevel gear 55, the upper end of the third bevel gear 55 is large, the lower end of the third bevel gear 55 is small, a spline shaft 56 is axially and slidably arranged in the center of the third bevel gear 55, the spline shaft 56 is rotatably arranged on the fixed block 50, and an angle synchronous wheel 57 is coaxially and fixedly arranged on the outer wall of the lower end of the spline shaft 56;
in the use of the present invention, the angle synchronizing wheel 57 is driven to rotate by external power, the angle synchronizing wheel 57 drives the spline shaft 56 to rotate, the spline shaft 56 drives the third bevel gear 55 to rotate, the third bevel gear 55 drives the second bevel gear 54 to rotate (wherein the flexible component changes its curvature, i.e. the center of the flexible component moves up and down, the second bevel gear 54 also moves up and down along the oblong plate 22, the third bevel gear 55 moves up and down along the spline shaft 56 by its own weight on the spline shaft 56, and always keeps meshing with the second bevel gear 54), the second bevel gear 54 drives the receiving shaft 53 to rotate on the oblong plate 22, thereby driving the first synchronizing belt 34 to rotate, the first synchronizing belt 34 rotates to drive the connecting shaft 21 to rotate, the connecting shaft 21 rotates to drive the connecting shaft 33 to rotate, the worm 33 rotates in the cavity 31, the worm 32 rotates to drive the roller 27 to rotate by the first synchronizing belt 34 and the synchronizing gear 35 intermittently arranged outside the connecting shaft 21, thereby driving the roller 27 to rotate by the angle of the roller 27, thereby preventing the roller 27 from rotating around the axis of the rotating drum 27, the rotating shaft 27 from rotating around the axis of the rotating wheel 27, the rotating mechanism, and preventing the rotating drum 27 from vibrating from rotating by the rotating around the axis of the rotating wheel 27, the rotating ring 27, the rotating of the rotating drum 25, the rotating mechanism after the rotating mechanism and the rotating drum 27, thereby preventing the rotating mechanism from vibrating around the rotating axis of the rotating drum 25, the problem that the transverse moving speed of the module ring barrel 10 is uncontrollable is caused, and collision occurs between the tower module ring barrels 10), so that the module ring barrels 10 can rotate and move along the axis of the module ring barrel 10, certain axial transportation can be performed on the module ring barrels 10, the problem that when a plurality of module ring barrels 10 are welded, the positions of the module ring barrels need to be changed by lifting for many times and welding seams are butted is avoided, welding of the whole tower can be completed only by welding equipment with one welding point, secondly, when the module ring barrels 10 are axially transported, a spiral transportation mode is adopted, the problem that when the supporting points of the module ring barrels 10 form a line in the axis direction is avoided, the problem that metal fatigue occurs on the outer wall of the module ring barrel 10 is solved, and no matter how a flexible component deforms, the flexible component can drive the idler wheel 27 to revolve when rotating, the idler wheel 27 can be driven to rotate, the problem that when the equipment deforms, the transmission is blocked is effectively solved, secondly, power transmission is carried out by adopting a synchronous belt and a gear, the abnormal transmission is avoided, the angle of the idler wheel 27 is asynchronous to cause the outer wall of the module ring barrels 10 to be dragged, the friction and the collision of the equipment also cause the revolution of the impact of the revolution of the module ring barrels 10;
according to the invention, the angle synchronizing wheel 57 is driven by external power to indirectly drive the idler wheel 27 to rotate around the radial axis of the supporting point of the module ring barrel 10, when the rotation mechanism works, the idler wheel 27 rotates, the module ring barrel 10 rotates and moves along the axis of the module ring barrel 10, and certain axial transportation is carried out on the module ring barrel 10, so that the condition that multiple times of hoisting and position changing are needed when a plurality of module ring barrels 10 are welded, welding seam butt joint is carried out, and the working efficiency is low is avoided; secondly, when carrying out axial transportation to module ring bucket 10, adopt spiral transport mode to avoid forming a line of axis direction to module ring bucket 10 strong point, thereby lead to the problem that metal fatigue appears in module ring bucket 10 outer wall.
As a further scheme of the present invention, the rotation mechanism includes a plurality of rotation shafts 37, the rotation shafts 37 are respectively rotatably connected to the center of the angle shaft 30, the rotation shafts 37 penetrate through the support frame 25 and are rotatably connected to the support frame 25, one end of each rotation shaft 37 located inside the support frame 25 is coaxially and fixedly provided with a first synchronizing wheel 38, the outer end of each first synchronizing wheel 38 is sleeved with a second synchronizing belt 39, the side wall of the support frame 25 is rotatably connected with a bevel gear bar 40, the upper end of each bevel gear bar 40 is engaged with a first bevel gear 41, the first bevel gear 41 is coaxially and fixedly arranged at the end of the rolling shaft 26, the lower end of each bevel gear bar 40 is coaxially and fixedly provided with a second synchronizing wheel 42, the second synchronizing wheels 42 are sleeved in the second synchronizing belts 39, and the lower end of each rotation shaft 37 penetrating through the angle shaft 30 is provided with a rotation device for driving all rotation shafts 37 to rotate at the same speed;
the self-rotation device comprises a plurality of friction wheels 45, the side wall of each friction wheel 45 is provided with a ring groove 46, the outer edge of each ring groove 46 is provided with a guide inclined plane 47, the ring grooves 46 of the friction wheels 45 are jointly sleeved with an elastic belt 48, the section of each elastic belt 48 is circular, the lower end faces of the two long circular plates 22 at the lowest end are vertically and rotatably connected with a first circular shaft 49, the outer end of the first circular shaft 49 is coaxially and fixedly provided with the friction wheel 45, the upper end of the first pin shaft 12 is fixedly provided with a fixed block 50, the first circular shaft 49 is vertically sleeved inside the fixed block 50, the outer wall of the first circular shaft 49 positioned on the upper end face of the fixed block 50 is fixedly provided with a self-rotation synchronous wheel 51, and the self-rotation synchronous wheel 51 is rotatably arranged on the upper end face of the fixed block 50;
when the flexible assembly is used, the rotation synchronizing wheel 51 is driven to rotate on the fixed block 50 through external power, so that the first round shaft 49 is driven to rotate, the first round shaft 49 drives the friction wheel 45 at the upper end to rotate (as shown in fig. 10 and 11, the first round shaft 49 can vertically move on the fixed block 50 and the rotation synchronizing wheel 51, so that the problem that power is interrupted or interference occurs when the flexible assembly deforms up and down is avoided, wherein the annular groove 46 and the guide inclined plane 47 of the friction wheel 45 can enable the elastic belt 48 to be always clamped in the annular groove 46 when the angle between the axes of the friction wheel 45 changes, so that the friction wheel 45 is driven to rotate, the length of the elastic belt 48 can change to adapt to the radian change of the flexible assembly), the friction wheel 45 rotates to drive the elastic belt 48 to rotate, the elastic belt 48 rotates to drive all the friction wheels 45 to rotate, the friction wheel 45 rotates to drive the rotation shaft 37 to rotate, the rotation shaft 37 rotates to drive the first synchronizing wheel 38 to rotate, the first synchronizing wheel 38 rotates to drive the second synchronizing wheel 39 to rotate, the second synchronizing wheel 42 rotates to drive the bevel gear 40 to rotate, and the bevel gear 27 can drive the bevel gear 27 to rotate no matter how the bevel gear assembly to rotate when the flexible assembly rotates to drive the bevel gear 27, so that the bevel gear 27 rotates.
As a further aspect of the present invention, the rotation synchronizing wheels 51 of all the supporting modules are sleeved in the same power synchronizing band driven by external power, and the angle synchronizing wheels 57 of all the supporting modules are sleeved in the same angle synchronizing band driven by external power; when the invention is used, all the supporting modules can be uniformly allocated, thereby completing the integrity of the equipment.
A modular aluminum tower welding process comprises the following specific steps:
the method comprises the following steps: firstly, assembling the support modules of the device in an array mode, simultaneously fixedly arranging the base 11 on the ground, ensuring that the first pin shafts 12 are in a coaxial state, combining the support modules according to the length of a tower, and fixedly arranging the conventional welding gun to a fixed position in the support modules, wherein the welding gun can move back and forth to be close to the tower module;
step two: when the module ring barrel 10 is placed at the upper end of the supporting plate 13, the V-shaped opening of the supporting plate 13 is reduced, the action of the connecting shaft 21 is realized, the long round block 20 and the long round plate 22 can automatically form a supporting track which is approximate to a circular arc, polygonal supporting surfaces of the long round block 20 and the long round plate 22 are tangent to the circle of the outer wall of the module ring barrel 10, and the roller 27 supports the outer wall of the module ring barrel 10 by radial stress;
step three: the existing power is driven to drive the rotation synchronizing wheel 51 to rotate, so that the rotation shaft 37 rotates to enable welding seams of the two module ring barrels 10 to rotate synchronously, then welding is carried out through an existing welding gun at a fixed station, the roller 27 drives the module ring barrels 10 to rotate, and accordingly supporting points of the roller 27 on the module ring barrels 10 are in a changing state all the time;
step four: when the module ring barrel 10 needs to be axially moved, the external power drives the angle synchronizing wheel 57 to indirectly drive the roller 27 to rotate around the radial axis of the supporting point of the module ring barrel 10, the roller 27 rotates, the module ring barrel 10 rotates and moves along the axis of the module ring barrel 10, and the module ring barrel 10 is axially transported to a certain degree.
Claims (9)
1. Modularization aluminium system tower ware welding set, including module ring bucket (10), module ring bucket welds the tower ware that forms its characterized in that in proper order: the module ring bucket (10) lower extreme is provided with a plurality of support modules along its axis, the support module includes base (11) of U type, fixed being provided with first round pin axle (12) on base (11), it is connected with four backup pads (13) to rotate on first round pin axle (12), per two backup pad (13) become a set of, with two with one side rotate between backup pad (13) and two other backup pads and be connected with flexible assembly, flexible assembly up end and module ring bucket (10) outer wall contact, flexible assembly length is less than the length sum of two backup pads (13), with two of one side rotate between the one end of first round pin axle (12) is kept away from in backup pad (13) and be connected with elasticity rope (14), the other one end of elasticity rope (14) is rotated and is connected two in addition between the one end of first round pin axle (12) is kept away from in backup pad (13), the fixed guide block (15) that is provided with of first round pin axle (12) lower extreme, guide block (15) lower extreme sets up first arc groove (16) that is used for supporting elasticity rope (14), guide block (15) lower extreme lateral wall is fixed and is provided with four stopper round pin (17) that are used for restricting rotation.
2. The modular aluminum tower welding apparatus of claim 1, wherein: flexible assembly includes a plurality of rectangular pieces (20), every rectangular piece (20) both ends are rotated and are had connecting axle (21), and every two are adjacent rotate between rectangular piece (20) both sides and be provided with rectangular board (22), rectangular board (22) both ends are rotated and are connected at connecting axle (21) outer wall, both ends rectangular piece (20) are rotated through connecting axle (21) and are set up between every group backup pad (13) in both sides, be provided with on rectangular board (22) and be used for driving support module ring bucket (10) pivoted support wheelset.
3. The modular aluminum tower welding apparatus of claim 2, wherein: the supporting wheel set comprises a plurality of U-shaped supporting frames (25), each supporting frame (25) is arranged on the side wall of the long round block (20) respectively, a rolling shaft (26) is arranged at the upper end of each supporting frame (25) in a rotating mode, rolling wheels (27) are coaxially and fixedly arranged on the outer wall of the center of each rolling shaft (26), the cross section of the axis of each rolling wheel (27) is oblong, and a rotation mechanism used for driving the rolling wheels (27) to rotate is arranged on the side wall of each supporting frame (25).
4. The modular aluminum tower welding apparatus of claim 3, wherein: the angle adjusting device is characterized in that an angle shaft (30) is fixedly arranged at the lower end of the support frame (25), the angle shaft (30) penetrates through the long round block (20) and is rotatably connected with the long round block (20), a cavity (31) is arranged inside the long round block (20), the outer wall of the angle shaft (30) located inside the cavity (31) is provided with a worm wheel (32), the outer wall of the connecting shaft (21) located inside the cavity (31) is provided with a worm (33), the worm wheel is identical to the worm (33) on the long round block (20), the spiral directions of the two worm (33) are opposite, the connecting shaft (21) is located on the same long round block (22), a first synchronous belt (34) is sleeved at the outer end of the connecting shaft (21), the first synchronous belt (20) is identical to the two connecting shaft (21) and the outer end of the connecting shaft (21) is respectively and fixedly connected with two meshed synchronous gears (35) in a coaxial mode, and one angle adjusting device for driving the first synchronous belt (34) to rotate is arranged in the first synchronous belt (34).
5. The modular aluminum tower welding apparatus of claim 4, wherein: the autorotation mechanism comprises a plurality of autorotation shafts (37), the autorotation shafts (37) are respectively rotatably connected to the center of the angle shaft (30), the autorotation shafts (37) penetrate through the support frame (25) and are rotatably connected with the support frame (25), one end of each autorotation shaft (37) located inside the support frame (25) is coaxially and fixedly provided with a first synchronous wheel (38), a second synchronous belt (39) is sleeved on the outer end of each first synchronous wheel (38), the side wall of the support frame (25) is rotatably connected with a bevel gear rod (40), the upper end of each bevel gear rod (40) is meshed with a first bevel gear (41), each first bevel gear (41) is coaxially and fixedly arranged at the end of the corresponding roller (26), a second synchronous wheel (42) is coaxially and fixedly arranged at the lower end of each bevel gear rod (40), the second synchronous wheel (42) is sleeved in the second synchronous belt (39), and each autorotation shaft (37) penetrates through the lower end of the angle shaft (30) and is provided with an autorotation device for driving all the autorotation shafts (37) to rotate at the same speed.
6. The modular aluminum tower welding apparatus of claim 5, wherein: rotation device includes a plurality of friction pulley (45), annular (46) have been seted up to friction pulley (45) lateral wall, direction inclined plane (47) have been seted up to annular (46) outward flange, and are a plurality of jointly overlap in annular (46) of friction pulley (45) and be equipped with elastic webbing (48), elastic webbing (48) cross-section is circular, wherein two of lower extreme the vertical rotation of terminal surface is connected with first circle axle (49) under long plectane (22), the coaxial fixed friction pulley (45) that is provided with in first circle axle (49) outer end, fixed being provided with fixed block (50) in first round pin axle (12) upper end, the vertical cover of first circle axle (49) is established inside fixed block (50), is located fixed block (50) up end first circle axle (49) outer wall is fixed and is provided with rotation synchronizing wheel (51), rotation synchronizing wheel (51) rotate and set up at fixed block (50) up end.
7. The modular aluminum tower welding apparatus of claim 6, wherein: the angle device is including accepting axle (53), accept axle (43) transverse rotation and set up two at the bottom plectane (22) lateral wall, accept axle (43) pot head and establish inside first synchronous belt (34), the coaxial fixedly connected with second bevel gear (54) of one end in addition, second bevel gear (45) outer end meshing has third bevel gear (55), third bevel gear (55) upper end is big lower extreme little, third bevel gear (55) central authorities endwise slip is provided with integral key shaft (56), integral key shaft (56) rotate and set up on fixed block (50), the coaxial fixed angle synchronizing wheel (57) that is provided with of integral key shaft (56) lower extreme outer wall.
8. The modular aluminum tower welding apparatus of claim 7, wherein: the self-rotating synchronous wheels (51) in all the supporting modules are sleeved in the same power synchronous belt driven by external power, and the angle synchronous wheels (57) in all the supporting modules are sleeved in the same angle synchronous belt driven by the external power.
9. A modular aluminum tower welding process, which is suitable for the modular aluminum tower welding device of any one of claims 1 to 8, and is characterized in that: the welding process of the modular aluminum tower comprises the following specific steps:
the method comprises the following steps: firstly, assembling the support modules of the device in an array mode, simultaneously fixedly arranging the base (11) on the ground, ensuring that the first pin shafts (12) are in a coaxial state, combining according to the length of a tower, fixedly arranging the conventional welding gun to a fixed position in the support modules, wherein the welding gun can move back and forth to be close to the tower module;
step two: when the module ring barrel (10) is placed at the upper end of the supporting plate (13), the V-shaped opening of the supporting plate (13) is reduced, the connecting shaft (21) acts, the long round block (20) and the long round plate (22) can automatically form a supporting track similar to a circular arc, polygonal supporting surfaces of the long round block (20) and the long round plate (22) are tangent to the circle of the outer wall of the module ring barrel (10), and the roller (27) supports the outer wall of the module ring barrel (10) in a radial stress mode;
step three: the existing power is driven to drive the autorotation synchronizing wheel (51) to rotate, the autorotation shaft (37) autorotates, welding seams of the two module ring barrels (10) synchronously rotate, then welding is carried out through an existing welding gun of a fixed station, the idler wheel (27) drives the module ring barrels (10) to autorotate, and therefore supporting points of the idler wheel (27) on the module ring barrels (10) are always in a changing state;
step four: when the module ring barrel (10) needs to be axially moved, the external power drives the angle synchronizing wheel (57) to indirectly drive the roller (27) to rotate around the radial axis of the supporting point of the module ring barrel (10), the roller (27) rotates, the module ring barrel (10) rotates and moves along the axis of the module ring barrel (10), and the module ring barrel (10) is axially transported to a certain extent.
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| CN202211223678.7A CN115625473B (en) | 2022-10-08 | 2022-10-08 | Modularized aluminum tower welding process and device |
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| CN202211223678.7A CN115625473B (en) | 2022-10-08 | 2022-10-08 | Modularized aluminum tower welding process and device |
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| CN115625473A true CN115625473A (en) | 2023-01-20 |
| CN115625473B CN115625473B (en) | 2024-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117697304A (en) * | 2024-02-06 | 2024-03-15 | 扬州凯勒机械有限公司 | Fixed welding frock of underground scraper rear axle swing frame |
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| CN213080586U (en) * | 2020-08-20 | 2021-04-30 | 南通昭和机械有限公司 | Semi-automatic welding fillet weld welding auxiliary fixtures |
| CN213224965U (en) * | 2020-09-17 | 2021-05-18 | 江国旭 | Special tooling for tower assembling and welding |
| CN216227724U (en) * | 2021-11-02 | 2022-04-08 | 江苏双良锅炉有限公司 | Tool for flexible assembly of barrels |
| CN216730357U (en) * | 2022-01-12 | 2022-06-14 | 龙口泰进机械有限公司 | Positioning mechanism for welding driving arm component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240384A (en) * | 1969-04-11 | 1971-07-21 | Pandjiris Weldment Co | Turning roll assembly |
| CN213080586U (en) * | 2020-08-20 | 2021-04-30 | 南通昭和机械有限公司 | Semi-automatic welding fillet weld welding auxiliary fixtures |
| CN213224965U (en) * | 2020-09-17 | 2021-05-18 | 江国旭 | Special tooling for tower assembling and welding |
| CN216227724U (en) * | 2021-11-02 | 2022-04-08 | 江苏双良锅炉有限公司 | Tool for flexible assembly of barrels |
| CN216730357U (en) * | 2022-01-12 | 2022-06-14 | 龙口泰进机械有限公司 | Positioning mechanism for welding driving arm component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117697304A (en) * | 2024-02-06 | 2024-03-15 | 扬州凯勒机械有限公司 | Fixed welding frock of underground scraper rear axle swing frame |
| CN117697304B (en) * | 2024-02-06 | 2024-05-17 | 扬州凯勒机械有限公司 | Fixed welding frock of underground scraper rear axle swing frame |
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| CN115625473B (en) | 2024-07-02 |
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