Multi-angle flange assembly platform for wind power tower

Abstract

The invention relates to the technical field of wind power flange multi-angle assembling, and provides a wind power tower multi-angle flange assembling platform which comprises a plurality of movably-arranged three-jaw chucks, an end flange at one end of a main column is detachably fixed to a fixing base through a bolt assembly, a supporting frame is located beside the fixing base, and the main column moves along with the supporting frame; after the supporting frame moves, the main column gets close to or away from the three-jaw chucks; the supporting frame is located between the control base and the fixing base. The sliding seat is slidably arranged on the control seat; the rotating disc is rotationally arranged on the sliding seat and used for being detachably connected with an end flange at the other end of the main column, and one side of the rotating disc is sleeved with a gear; the rack is arranged on the control base in a lifting mode and meshed with the gear after rising, and after the sliding base slides away from the three-jaw chuck, the rotary disc drives the main column to rotate. By means of the technical scheme, the problems that in an existing multi-angle flange welding technology, time and labor are wasted during movement and conversion of the angle of the main column, and the welding efficiency is affected are solved.

Description

Technical Field

[0001] This invention relates to the field of multi-angle assembly technology for wind turbine flanges, and more particularly to a multi-angle flange assembly platform for wind turbine towers. Background Technology

[0002] Wind turbine towers are constructed by connecting multiple main columns in sequence, gradually increasing in height. The main columns on the same floor are connected by horizontal and inclined reinforcing pipes to improve structural strength. Multiple side flanges are typically installed on the main columns to facilitate one-to-one connection with the multiple reinforcing pipes. Therefore, multiple side flanges at different angles need to be fixedly welded to the main columns. Generally, this includes two sets of multi-angle flange groups spaced 90 degrees apart circumferentially. Each set of multi-angle flanges includes one horizontal side flange and two inclined side flanges.

[0003] Existing side flange welding methods typically utilize a fixed base that is fixedly connected to the end flange of the main column for positioning. Three three-jaw chucks are fixed to the ground according to the welding position and angle of the side flange. The three-jaw chucks can move along the axis of the side flange towards the main column, so that the side flange abuts against the position to be welded on the main column. Due to the accuracy of the data, the positions of the three-jaw chucks and the fixed base can be preset and fixed in advance.

[0004] However, in the existing side flange welding method, after welding a set of multi-angle flanges, it is necessary to manually operate the lifting rope to move and rotate the main column so that the welded multi-angle flange set can be rotated to the top to weld another set of multi-angle flanges. Changing the angle of the main column is time-consuming and labor-intensive, and it is also necessary to call up the lifting rope, which occupies a long time and resources. In order to install new side flanges to be welded on the three-jaw chuck and to make the operation of changing the angle of the main column safer and more convenient, the three-jaw chuck and the main column need to be far apart, which makes the operation even more time-consuming and labor-intensive.

[0005] In existing multi-angle flange welding technology, moving and changing the angle of the main column is time-consuming and labor-intensive, which affects welding efficiency and needs to be addressed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a multi-angle flange assembly platform for wind turbine towers, which addresses the above-mentioned technical deficiencies. This platform solves the problem that the existing multi-angle flange welding technology is time-consuming and labor-intensive in moving and changing the angle of the main column, thus affecting the welding efficiency.

[0007] The technical solution adopted in this invention is: to provide a multi-angle flange assembly platform for wind turbine towers, including several movable three-jaw chucks, wherein the end flange at one end of the main column is detachably fixed to a fixed base by a bolt assembly, characterized in that it further includes: A support frame is located next to the fixed base. The support frame is movable, and the main column is placed on the support frame. The main column moves with the support frame. After the support frame moves, the main column moves closer to or further away from several of the three-jaw chucks. A control base, wherein the support frame is located between the control base and the fixed base; A slide block is slidably mounted on the control base; A turntable is rotatably mounted on the slide block. The turntable is detachably connected to the end flange at the other end of the main column. A gear is sleeved on one side of the turntable. A rack is raised and lowered on the control base and located below the gear. After the rack rises, it meshes with the gear. When the slide moves away from the three-jaw chuck, the turntable drives the main column to rotate.

[0008] To further optimize this technical solution, a baffle is provided on the side of the support frame near the three-jaw chuck, and the main column abuts against one side of the baffle.

[0009] Further optimization of this technical solution also includes: The positioning seat is provided in several parts, and one positioning seat is fixed on each of the three-jaw chucks. The positioning seat has several positioning holes for connecting with the end flange of the main column. The positioning seat is detachably connected to the side flange to be welded by a bolt assembly.

[0010] To further optimize this technical solution, the positioning seat includes a positioning plate, a connecting pipe, and a connecting plate connected in sequence, the positioning hole is disposed on the connecting plate, and the positioning plate is used to fix the three-jaw chuck.

[0011] Further optimization of this technical solution also includes: The base has several units, and each base is movably mounted with a three-jaw chuck. The base is fixed to the ground.

[0012] To further optimize this technical solution, the end flange at the other end of the main column is detachably connected to the turntable via a bolt assembly.

[0013] Further optimization of this technical solution also includes: A material preparation rack is located next to the support frame. The support frame moves closer to or away from the material preparation rack. The material preparation rack is used to place several main columns to be welded.

[0014] Further optimization of this technical solution also includes: A linear drive mechanism is mounted on the material preparation rack and is used to drive the support frame to move.

[0015] To further optimize this technical solution, the distance between the fixed base and the turntable is greater than the axial length of the main column.

[0016] The beneficial effects of this invention are as follows: 1. After completing the welding of a set of multi-angle flanges on the main column, the main column is disconnected from the fixed base, and the other end of the main column is connected to the turntable. The support frame moves away from the three-jaw chuck. During the movement of the main column, the turntable drives the main column to rotate through the meshing of gears and racks, so that the welded set of multi-angle flanges rotates to the upper side, completing the angle conversion and movement of the main column without the need for hoisting ropes to lift the main column.

[0017] 2. After the new side flange is installed on the three-jaw chuck, the rack disengages from the gear, the moving frame moves closer to the three-jaw chuck, and the support frame can be moved and reset. After manual adjustment, the main column is fixed on the fixed seat, and the side flange is mated to the side of the main column, so that another set of multi-angle flanges can be welded. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the front structure of the present invention; Figure 4 This is a schematic diagram of the rear view structure of the present invention; Figure 5 This is a schematic diagram of the main column rotation structure of the present invention; Figure 6 This is a schematic diagram of the side flange connection structure of the present invention; Figure 7 This is a schematic diagram of the positioning seat structure of the present invention; Figure 8 This is a schematic diagram of the main column structure of the present invention; The markings in the diagram are as follows: 1. Three-jaw chuck; 101. Base; 2. Fixed seat; 3. Support frame; 301. Baffle; 4. Control seat; 5. Slide; 501. Turntable; 502. Gear; 6. Rack; 7. Positioning seat; 701. Positioning plate; 702. Connecting pipe; 703. Connecting plate; 8. Material rack; 801. Linear drive mechanism; 9. Main column; 901. Side flange; 902. End flange. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-8 As shown, a multi-angle flange assembly platform for wind turbine towers includes several movable three-jaw chucks 1. An end flange 902 at one end of a main column 9 is detachably fixed to a fixed base 2 via bolt assemblies. The platform also includes: a support frame 3 located beside the fixed base 2, the support frame 3 being movable, the main column 9 being placed on the support frame 3 and moving with the support frame 3; and a control base 4, with the support frame 3 located on the control base. Between the control seat 4 and the fixed seat 2; a slide 5, slidably mounted on the control seat 4; a turntable 501, rotatably mounted on the slide 5, the turntable 501 being detachably connected to the end flange 902 at the other end of the main column 9, a gear 502 being sleeved on one side of the turntable 501; a rack 6, raised and lowered on the control seat 4 and located below the gear 502, the rack 6 engaging with the gear 502 after rising, and the turntable 501 driving the main column 9 to rotate after the slide 5 slides away from the three-jaw chuck 1.

[0024] In use, according to the existing technology, the fixed seat 2 and several three-jaw chucks 1 are placed in a preset position. That is, after the end flange 902 of the main column 9 is fixed on the fixed seat 2, the three-jaw chucks 1 can drive the side flange 901 to abut against the welding position of the main column 9.

[0025] The main column 9 of the tower is placed on the support frame 3. The main column 9 is located between the fixed seat 2 and the turntable 501. The fixed seat 2 is provided with holes that correspond to the holes of the end flange 902 of the main column 9, so that the main column 9 can be fixed and positioned. Each three-jaw chuck 1 is fixed with a side flange 901. The three-jaw chuck 1 moves along the axis of its corresponding side flange 901, driving the corresponding side flange 901 to move and abut against the side of the main column 9. According to the preset position, each side flange 901 abuts against its own welding position at its own angle. Then, multiple side flanges 901 can be welded.

[0026] After completing the welding of a set of multi-angle flanges, the three-jaw chuck 1 disengages from the welded side flange 901 and moves away from the main column 9 (a short distance is sufficient to avoid the side flange 901 touching the three-jaw chuck 1 during lateral movement, improving safety; the movement of the support frame 3 allows the main column 9 and the three-jaw chuck 1 to move away, leaving operating space). The main column 9 disengages from the fixed seat 2, and the end flange 902 at the other end of the main column 9 is fixedly connected to the turntable 501. The rack 6 rises and meshes with the gear 502. The support frame 3 moves away from the three-jaw chuck 1, and the support frame 3 drives the main column 9 to move. At this time, the slide 5 moves horizontally on the control seat 4, and the rack 6 is below the gear 502. When the slide 5 moves, the turntable 501 moves with the slide 5 and rotates on the rack 6. A 90-degree rotation (the angle does not need to be strictly controlled) moves the already welded multi-angle flange assembly to the top. The space between the main column 9 and the three-jaw chuck 1 is then used by the worker to replace the new side flange 901 on the three-jaw chuck 1. The rack 6 descends and disengages, the support frame 3 moves back to its original position, causing the main column 9 to move laterally. Finally, the main column 9 approaches the side flange 901 on the three-jaw chuck 1. After the end flange 902 of the main column 9 is fixed to the fixed seat 2, the three-jaw chuck 1 moves closer to the main column 9, causing the side flange 901 to abut against the main column 9, allowing welding to proceed. This completes the welding of the side flange 901 on the main column 9.

[0027] When the main column 9 rotates 90 degrees, the horizontal movement distance is one-quarter of the circumference, which is the distance away from the three-jaw chuck 1. If this distance is insufficient, the time for the rack 6 to rise and mesh with the gear 502 can be delayed, thereby increasing the horizontal movement distance of the main column 9.

[0028] The rack 6 can be lifted and lowered by a hydraulic cylinder assembly, and its stroke can be controlled by a sensor using conventional technology.

[0029] Furthermore, a baffle 301 is provided on the side of the support frame 3 near the three-jaw chuck 1, and the main column 9 abuts against the side of the baffle 301.

[0030] When in use, the baffle 301 is fixed to one side of the support frame 3. When the support frame 3 moves away from the three-jaw chuck 1, it can more stably drive the main column 9 to move laterally, and the main column 9 can still rotate.

[0031] Furthermore, it also includes: a plurality of positioning seats 7, one of which is fixed on each of the three-jaw chucks 1. The positioning seat 7 has a plurality of positioning holes for connecting to the end flange 902 of the main column 9. The positioning seat 7 is detachably connected to the side flange 901 to be welded via a bolt assembly. The positioning seat 7 includes a positioning plate 701, a connecting pipe 702, and a connecting plate 703 connected in sequence. The positioning holes are provided on the connecting plate 703. The positioning plate 701 is used to fix the three-jaw chuck 1.

[0032] During use, the three-jaw chuck 1 is fixedly connected to the side flange 901 via the positioning seat 7, which allows for more convenient and quick positioning of the side flange 901. There is no need for repeated manual adjustment of the hole angles on the side flange 901.

[0033] The three-jaw chuck 1 clamps and fixes the positioning plate 701. The distance between the positioning plate 701 and the connecting plate 703 can be increased through the connecting pipe 702, which facilitates the connection between the side flange 901 and the connecting plate 703 via bolts. The side flange 901 can be connected to the connecting plate 703 via bolt assemblies for greater stability. Alternatively, a plug-in post can be provided on the connecting plate 703 for plug-in connection with the side flange 901, which also enables the three-jaw chuck 1 to move the side flange 901.

[0034] Furthermore, it also includes: a base 101, having several, each of which is movably mounted with a three-jaw chuck 1, and the base 101 is fixed to the ground.

[0035] In use, the three-jaw chuck 1 moves on the base 101 closer to or away from the main column 9. The base 101 can be fixed to the ground by its own weight or by conventional fixing methods, maintaining a fixed angle. Moving the three-jaw chuck 1 on the base 101 will move the side flange 901 closer to the main column 9 along the axis of the side flange 901.

[0036] Furthermore, the end flange 902 at the other end of the main column 9 is detachably connected to the turntable 501 via a bolt assembly.

[0037] During use, the end flange 902 of the main column 9 is connected to the turntable 501 via a bolt assembly, which makes it more stable.

[0038] Furthermore, it also includes: a material preparation rack 8, disposed beside the support frame 3, which moves closer to or further away from the material preparation rack 8 after the support frame 3 is moved; the material preparation rack 8 is used to place several main columns 9 to be welded. It also includes: a linear drive mechanism 801, disposed on the material preparation rack 8, used to drive the support frame 3 to move.

[0039] In use, the material preparation rack 8 can be a frame structure, located next to the support frame 3. Several main columns 9 with welded side flanges 901 can be placed on the material preparation rack 8. The material preparation rack 8 can be flush with the upper end of the support frame 3. After the welding of the side flange 901 of one main column 9 is completed on the support frame 3, it can be hoisted using ropes, etc. The support frame 3 can be moved closer to the material preparation rack 8, and new main columns 9 can be rolled directly onto the support frame 3 without waiting for the hoisting ropes. For material preparation safety, several baffles can be installed on the material preparation rack 8 to prevent the main columns 9 from rolling and falling. When the main column 9 rolls onto the support frame 3, it can be positioned by abutting against the baffle 301 on the support frame 3. At this time, there may be misalignment between the end flange 902 of the main column 9 and the fixed seat 2. When the misalignment angle is small, it can be adjusted by manual rotation or small tools. Alternatively, the support frame 3 and the slide 5 can be moved, and the turntable 501 can be rotated to align and connect the turntable 501 with the end flange 902 of the main column 9. The rack 6 meshes with the gear 502, and the main column 9 can be rotated by moving the support frame 3, thereby achieving angle adjustment. Subsequently, the gear 502 and rack 6 disengage, and the support frame 3 and the main column 9 can be translated.

[0040] The linear drive mechanism 801 can be a hydraulic cylinder assembly or a pneumatic cylinder assembly, which reciprocates to drive the support frame 3 to move. A guide connection can also be added between the support frame 3 and the material rack 8 to make the movement of the support frame 3 more stable.

[0041] Furthermore, the distance between the fixed base 2 and the turntable 501 is greater than the axial length of the main column 9.

[0042] In use, the main column 9 is positioned between the fixed base 2 and the turntable 501. The end face of the main column 9 must be spaced apart from either the fixed base 2 or the turntable 501. When the main column 9 is fixedly connected to the fixed base 2 via bolt assemblies, the reference coordinate is solely the fixed base 2, ensuring accurate positioning. When the main column 9 is detached from the fixed base 2 and bolted to the turntable 501, there is no need for the end flange 902 of the main column 9 to be in contact with the turntable 501.

[0043] When the main column 9 rolls onto the support frame 3, there may be a gap between the end flange 902 and the fixed seat 2. When connecting with bolt assembly, the end flange 902 of the main column 9 can be pulled to abut against the fixed seat 2 by tightening the bolts.

[0044] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A multi-angle flange assembly platform for wind turbine towers, comprising several movable three-jaw chucks (1), wherein the end flange (902) at one end of the main column (9) is detachably fixed to a fixed base (2) by bolt assembly, characterized in that, Also includes: The support frame (3) is located next to the fixed seat (2). The support frame (3) is movable. The main column (9) is placed on the support frame (3). The main column (9) moves with the support frame (3). After the support frame (3) moves, the main column (9) moves closer to or further away from several of the three-jaw chucks (1). Control seat (4), the support frame (3) is located between the control seat (4) and the fixed seat (2); The slide (5) is slidably mounted on the control seat (4); A turntable (501) is rotatably mounted on the slide (5). The turntable (501) is detachably connected to the end flange (902) at the other end of the main column (9). A gear (502) is sleeved on one side of the turntable (501). The rack (6) is raised and lowered on the control seat (4) and located below the gear (502). After the rack (6) rises, it meshes with the gear (502). When the slide (5) slides away from the three-jaw chuck (1), the turntable (501) drives the main column (9) to rotate.

2. The multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, The support frame (3) is provided with a baffle (301) on the side near the three-jaw chuck (1), and the main column (9) abuts against the side of the baffle (301).

3. The multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, Also includes: The positioning seat (7) is of several kinds, and each of the three-jaw chucks (1) has a fixed positioning seat (7). The positioning seat (7) has several positioning holes for connecting with the end flange (902) of the main column (9). The positioning seat (7) is detachably connected to the side flange (901) to be welded by bolt assembly.

4. The multi-angle flange assembly platform for wind turbine towers according to claim 3, characterized in that, The positioning seat (7) includes a positioning plate (701), a connecting pipe (702) and a connecting plate (703) connected in sequence. The positioning hole is provided on the connecting plate (703). The positioning plate (701) is used to fix the three-jaw chuck (1).

5. A multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, Also includes: The base (101) has several units, and each base (101) is movably provided with a three-jaw chuck (1), and the base (101) is fixed on the ground.

6. The multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, The end flange (902) at the other end of the main column (9) is detachably connected to the turntable (501) by a bolt assembly.

7. A multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, Also includes: A material preparation rack (8) is set next to the support frame (3). After the support frame (3) moves, it moves closer to or further away from the material preparation rack (8). The material preparation rack (8) is used to place several main columns (9) to be welded.

8. A multi-angle flange assembly platform for wind turbine towers according to claim 7, characterized in that, Also includes: A linear drive mechanism (801) is provided on the material preparation rack (8) for driving the support frame (3) to move.

9. A multi-angle flange assembly platform for wind turbine towers according to claim 1, characterized in that, The distance between the fixed seat (2) and the turntable (501) is greater than the axial length of the main column (9).

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