Welding spot polishing device for welding seam of offshore wind power jacket

Abstract

The utility model discloses a welding spot polishing device for a welding seam of an offshore wind power jacket, which comprises a transverse adjusting component adjustably and fixedly arranged on an angle grinder, an angle adjusting component arranged on the transverse adjusting component, and a supporting height adjusting component adjustably and fixedly arranged on the angle adjusting component, according to the angle grinder, through cooperation of the angle grinder body, the transverse adjusting assembly, the angle adjusting assembly, the supporting height adjusting assembly and the grinding rod, the angle grinder can be effectively supported, arm ache and fatigue caused when a person lifts the angle grinder are relieved, and the efficiency of grinding work is improved; the effect of transverse adjustment on the angle grinder is achieved through the clamping base, the first bolt and the first threaded hole, a better supporting position is conveniently adjusted, and the effect of adjusting the supporting angle is achieved through cooperation of the through hole, the U-shaped base, the second bolt, the round rod and the rotating pipe.

Description

Technical Field

[0001] This utility model relates to a welding seam applicable to wind turbine jacket foundations, and more specifically, to a welding point grinding device for welding seams of offshore wind turbine jacket foundations. Background Technology

[0002] Wind turbine jackets are the core supporting structure of offshore wind power foundations. They are usually composed of steel pipe nodes and columns forming a truss structure, suitable for sea areas with a water depth of 20-50 meters. The quality of their welds directly determines the fatigue life of the structure and its ability to resist the impact of wind, waves and ocean currents. The total length of the jacket welds often exceeds 1 kilometer, and most of them are spatial irregular joints.

[0003] Currently, patent publication number CN222078820U discloses a welding seam grinding device for welded steel pipes, which relates to the field of steel pipe grinding technology and is used to solve the problem of insufficient automation in existing welding seam grinding devices for welded steel pipes. The device includes a worktable, a limiting plate, a first connecting plate, a second connecting plate, a first hydraulic device, a first hydraulic cylinder, and a grinding wheel. A first motor is provided at the front of the worktable, and the output end of the first motor is connected to a first rotating shaft. A turntable is fixedly connected to the front end of the first rotating shaft. A placement groove is opened at the front of the turntable for placing one end of the welded steel pipe.

[0004] However, existing technologies have some problems: due to the long weld seams of wind turbine jackets, raising the angle grinder to grind the weld seams throughout the process will cause excessive fatigue to the arm and affect the efficiency of the grinding work. Therefore, we propose a weld seam grinding device for offshore wind turbine jackets. Utility Model Content

[0005] One objective of this invention is to provide a new technology solution for a welding point grinding device for welding seams of offshore wind turbine jackets.

[0006] According to a first aspect of the present invention, a welding point grinding device for welding seams of offshore wind turbine jackets is provided, comprising an angle grinder, and further comprising: an adjustable lateral adjustment component fixedly mounted on the angle grinder, an angle adjustment component mounted on the lateral adjustment component, an adjustable support height adjustment component fixedly mounted on the angle adjustment component, and a grinding rod that can be extended or shortened on the support height adjustment component.

[0007] Optionally, the two ends of the abrasive rod have abrasive balls.

[0008] Optionally, the lateral adjustment assembly includes a plurality of first threaded holes on both sides of the angle grinder and a clamp sleeved on the angle grinder, wherein the angle grinder and the clamp are fixedly connected by a plurality of first bolts.

[0009] Optionally, the bottom of the clamp has a connecting block, through which the first bolt moves and is threaded into the first threaded hole.

[0010] Optionally, the angle adjustment assembly includes a U-shaped seat fixedly disposed on one side of the connecting block, a round rod rotatably disposed at the center of both sides of the U-shaped seat, and a plurality of through holes distributed circumferentially on both sides of the U-shaped seat, wherein a second bolt moves through the through holes.

[0011] Optionally, the support height adjustment assembly includes a rotating tube fixedly mounted on two round rods, a height adjustment rod movably passing through the rotating tube, a plurality of second threaded holes opened on the height adjustment rod, and a plurality of third bolts movably passing through the rotating tube. The third bolts are threadedly inserted into the second threaded holes, and the second bolts are threadedly passed through the rotating tube.

[0012] Optionally, the third bolt has a second extension handle on both sides of its head, and the second bolt has a first extension handle on both sides of its head.

[0013] Optionally, the U-shaped seat has bearings at the center of both sides, and the round rod passes through the bearings and is fixedly connected to the inner ring of the bearings.

[0014] According to the embodiments of this disclosure, the following beneficial effects are achieved:

[0015] 1. Through the cooperation of the angle grinder, the horizontal adjustment component, the angle adjustment component, the support height adjustment component, and the grinding rod, the angle grinder can be effectively supported, relieving arm pain and fatigue caused by lifting the angle grinder, and improving the efficiency of grinding work.

[0016] Second, the clamp, the first bolt, and the first threaded hole enable lateral adjustment on the angle grinder, facilitating a better support position. The through hole, the U-shaped seat, the second bolt, the round rod, and the rotating tube work together to adjust the support angle. The rotating tube can rotate on the U-shaped seat and then be fixed. The rotating tube, the height adjustment rod, the second threaded hole, and the third bolt work together to easily adjust the height of the grinding rod support, thus making it easier to find a better support height.

[0017] Third, the bearing facilitates the rotation of the round rod, the connecting block facilitates the connection of the clamp and the U-shaped seat, the first extension handle facilitates the rotation of the second bolt, the second extension handle facilitates the rotation of the third bolt, and the abrasive ball facilitates the raising of the abrasive rod, making it convenient for support in uneven places.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0020] Figure 1 A schematic diagram of the overall three-dimensional structure of a weld spot grinding device for welding seams of offshore wind turbine jackets;

[0021] Figure 2 A partial exploded structural diagram of a weld grinding device for welding seams of offshore wind turbine jackets;

[0022] Figure 3 This is a partial exploded structural diagram of a weld spot grinding device for offshore wind turbine jacket weld seams.

[0023] The following are labeled in the diagram: 1. Lateral adjustment assembly; 11. First threaded hole; 12. Clamp; 13. First bolt; 14. Connecting block; 2. Angle adjustment assembly; 21. U-shaped seat; 22. Through hole; 23. Bearing; 24. Round rod; 25. Second bolt; 26. First extension handle; 3. Support height adjustment assembly; 31. Rotating tube; 32. Height adjustment rod; 33. Second threaded hole; 34. Third bolt; 35. Second extension handle; 41. Angle grinder; 42. Grinding rod; 43. Grinding ball. Detailed Implementation

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0027] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0028] like Figure 1-3As shown, this utility model solves the problem that excessive arm fatigue and reduced efficiency in grinding work caused by constantly raising the angle grinder to grind the weld joints of wind turbine jacket structures due to the excessive length of the weld joints. The device utilizes the cooperation of an angle grinder 41, a grinding rod 42, grinding balls 43, a lateral adjustment component 1, an angle adjustment component 2, and a support height adjustment component 3. This offshore wind turbine jacket structure weld joint grinding device includes an angle grinder 41, and further includes: an adjustable lateral adjustment component 1 fixedly mounted on the angle grinder 41, an angle adjustment component 2 mounted on the lateral adjustment component 1, an adjustable support height adjustment component 3 fixedly mounted on the angle adjustment component 2, and a grinding rod 42 that can be extended or shortened on the support height adjustment component 3. The grinding rod 42 has grinding balls 43 at both ends. The angle grinder 41, the horizontal adjustment component 1, the angle adjustment component 2, the support height adjustment component 3 and the grinding rod 42 work together to effectively support the angle grinder 41, relieve arm pain and fatigue caused by lifting the angle grinder 41, and improve the efficiency of grinding work.

[0029] The lateral adjustment assembly 1 includes multiple first threaded holes 11 on both sides of the angle grinder 41 and a clamp 12 fitted onto the angle grinder 41. The angle grinder 41 and the clamp 12 are fixedly connected by multiple first bolts 13. The bottom of the clamp 12 has a connecting block 14, through which the first bolts 13 move and are threaded into the first threaded holes 11. The connecting block 14 facilitates the connection between the clamp 12 and the U-shaped seat 21. The multiple first threaded holes 11 on both sides of the angle grinder 41 are fixedly connected to the clamp 12 by the first bolts 13, enabling precise adjustment of the lateral position. This design allows the clamp 12 to slide along the axial direction of the angle grinder 41, adapting to different welding point positions and avoiding operational inconvenience caused by fixed support points. The U-shaped structure of the clamp 12 wraps around the body of the angle grinder 41, dispersing the clamping force and preventing local stress concentration that could lead to deformation of the machine body. The modular design of the first threaded holes 11 and the clamp 12: The multiple first threaded holes 11 on both sides of the angle grinder 41 are equidistantly distributed. The U-shaped structure of clamp 12, combined with an embedded high-elasticity rubber pad, disperses the clamping force while preventing deformation of the angle grinder 41 body. The coordinated control of the lateral adjustment component 1 (positioning), the angle adjustment component 2 (orientation), and the height adjustment component 3 (pressure regulation) forms a closed-loop adaptive support network. A laser emitter is installed on the side of clamp 12 to project a cross-shaped light spot to assist in aligning the grinding path.

[0030] The angle adjustment assembly 2 includes a U-shaped seat 21 fixedly mounted on one side of the connecting block 14, a round rod 24 rotatably mounted at the center of both sides of the U-shaped seat 21, and multiple through holes 22 distributed circumferentially on both sides of the U-shaped seat 21, through which a second bolt 25 moves. Bearings 23 are located at the center of both sides of the U-shaped seat 21, and the round rod 24 passes through the bearings 23 and is fixedly connected to the inner ring of the bearings 23. The bearings 23 facilitate the rotation of the round rod 24. The abrasive ball 43 facilitates the elevation of the abrasive rod 42, providing support on uneven surfaces. The connecting block 14 at the bottom of the clamp 12 serves as the connecting component between the lateral adjustment assembly 1 and the angle adjustment assembly 2. Its rigid connection design ensures a continuous force transmission path, reducing the impact of vibration on grinding accuracy. The abrasive rod 42 can be supported on a wind turbine duct frame for easy operation. A detachable cast iron counterweight is installed at the bottom of the U-shaped seat 21, fixed by a slot, to counteract the centrifugal vibration of the angle grinder 41 during operation, improving grinding stability. The composite material grinding ball 43 uses a tungsten carbide matrix encased in a 3mm thick silicone layer. The tungsten carbide provides high wear resistance, while the silicone layer absorbs the impact caused by uneven weld surfaces, preventing slippage during grinding. The U-shaped structure of the clamp 12, combined with an embedded high-elasticity rubber pad, disperses the clamping force while preventing deformation of the angle grinder 41 body, making it particularly suitable for grinding high-strength steel materials such as S355NLH commonly used in offshore wind turbine jackets.

[0031] The height adjustment assembly 3 includes a rotating tube 31 fixedly mounted on two round rods 24, a height adjustment rod 32 movably passing through the rotating tube 31, multiple second threaded holes 33 formed on the height adjustment rod 32, and multiple third bolts 34 movably passing through the rotating tube 31. The third bolts 34 are threaded into the second threaded holes 33, and the second bolts 25 are threaded through the rotating tube 31. The heads of the third bolts 34 have second extension handles 35 on both sides, and the heads of the second bolts 25 have first extension handles 26 on both sides. The clamp 12, first bolt 13, and first threaded hole 11 provide lateral adjustment for the angle grinder 41, facilitating better support. The through hole 22, U-shaped seat 21, second bolt 25, round rod 24, and rotating tube 31 work together to adjust the support angle, allowing the rotating tube 31 to rotate on the U-shaped seat 21 and then be fixed. The rotating tube 31, height adjustment rod 32, second threaded hole 33, and third bolt 34 work together to adjust the support height of the grinding rod 42, thus finding a better support height. The first extension handle 26 facilitates rotation of the second bolt 25, and the second extension handle 35 facilitates rotation of the third bolt 34. The height adjustment rod 32 is height-locked through the engagement of the third bolt 34 and the second threaded hole 33. The rotating tube 31 is bidirectionally reinforced with a polytetrafluoroethylene bushing on its inner wall to reduce the sliding resistance of the height adjustment rod 32, and reinforced ribs are welded to its outer wall. The hard chrome-plated height adjustment rod 32, with its 25mm spacing design in conjunction with the second threaded hole 33, enables fine-tuning. The nylon insert anti-loosening structure of the third bolt 34 remains locked under vibration, solving the problem of traditional screw-type regulators easily loosening in rough seas. These innovations, through modular design, material optimization, and intelligent expansion, significantly improve grinding precision and efficiency, and their technical approach aligns perfectly with the offshore wind power industry's trend towards automation and high precision.

[0032] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A welding spot grinding device for welded seams of offshore wind turbine jackets, comprising an angle grinder (41), characterized in that, Also includes: Adjustable lateral adjustment assembly (1) fixedly mounted on the angle grinder (41), angle adjustment assembly (2) mounted on the lateral adjustment assembly (1), adjustable support height adjustment assembly (3) fixedly mounted on the angle adjustment assembly (2), and a grinding rod (42) that can be extended or shortened on the support height adjustment assembly (3).

2. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 1, characterized in that: The abrasive rod (42) has abrasive balls (43) at both ends.

3. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 1, characterized in that: The lateral adjustment assembly (1) includes a plurality of first threaded holes (11) on both sides of the angle grinder (41) and a clamp (12) sleeved on the angle grinder (41). The angle grinder (41) and the clamp (12) are fixedly connected by a plurality of first bolts (13).

4. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 3, characterized in that: The bottom of the clamp (12) has a connecting block (14), and the first bolt (13) moves through the clamp (12) and is threaded into the first threaded hole (11).

5. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 1, characterized in that: The angle adjustment assembly (2) includes a U-shaped seat (21) fixedly disposed on one side of the connecting block (14), a round rod (24) rotatably disposed at the center of both sides of the U-shaped seat (21), and a plurality of through holes (22) circumferentially distributed on both sides of the U-shaped seat (21), wherein a second bolt (25) moves through the through holes (22).

6. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 5, characterized in that: The support height adjustment assembly (3) includes a rotating tube (31) fixedly mounted on two round rods (24), a height adjustment rod (32) moving through the rotating tube (31), a plurality of second threaded holes (33) opened on the height adjustment rod (32), and a plurality of third bolts (34) moving through the rotating tube (31). The third bolts (34) are threaded into the second threaded holes (33), and the second bolts (25) are threaded through the rotating tube (31).

7. The weld grinding device for welded seams of offshore wind turbine jackets according to claim 6, characterized in that: The third bolt (34) has a second extension handle (35) on both sides of its head, and the second bolt (25) has a first extension handle (26) on both sides of its head.

8. A weld grinding device for welded seams of offshore wind turbine jackets according to claim 5, characterized in that: The U-shaped seat (21) has bearings (23) at the center of both sides, and the round rod (24) passes through the bearing (23) and is fixedly connected to the inner ring of the bearing (23).

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