Heavy-duty welding assembly roller stand

Abstract

The utility model relates to wind power tower section processing equipment field, concretely relates to a heavy type dress welds total group roller frame, solves the problem of the single stake supportability and the operation stability deficiency for the large size, large weight, including a plurality of initiative roller frame and driven roller frame, each initiative roller frame all includes support frock and initiative roller assembly, initiative roller assembly includes the roller seat, initiative wheel and drive initiative wheel rotation's motor and speed reducer, driven roller frame includes support frock and driven roller assembly, driven roller assembly includes the roller seat and driven wheel, support frock includes the lower panel with the opening of lower end, the both side board of layout on the lower panel, the upper panel of being located two side board upper end, the top sealing plate of being connected with the sealing between two upper panels, the even establishment of a plurality of mounting screw holes for roller seat installation on the upper surface of upper panel, the utility model is applied to the rotary support welding operation in the cylinder.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower processing equipment, specifically to a heavy-duty assembly and welding roller frame. Background Technology

[0002] The roller frame for welding wind turbine towers is a key piece of equipment for supporting and rotating large cylindrical workpieces. Its basic structure is shown in the technical solution published in application number CN 112060023 A. This paper proposes a roller frame for wind turbine tower processing, including a base, a movable slide plate, a roller support seat, and rollers. The base has a sliding groove, and the movable slide plate is positioned above the base and moves along the groove. The movable slide plate has a roller support seat, and the rollers are mounted on the roller support seat. The system also includes a gear and a rack. The rack is mounted on the movable slide plate, and the gear is mounted on the base. The rack and gear mesh to enable linkage between the movable slide plate and the gear. Finally, a lifting device is included, with the base mounted on the lifting device, which allows the base to move vertically.

[0003] Currently, for monopiles, their large size and heavy weight require multiple roller frames and multi-point support to ensure stable operation during centering and rotation. Utility Model Content

[0004] Therefore, this utility model provides a heavy-duty assembly roller frame that solves the problem of insufficient support and operational stability for large-sized and heavy-weight single piles.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A heavy-duty welding assembly roller frame includes several active roller frames and driven roller frames. Each active roller frame includes a support fixture and active roller assemblies arranged on the upper surfaces of both ends of the support fixture. Each active roller assembly includes a roller seat, an active wheel rotatably mounted on the roller seat, and a motor and a reducer for driving the active wheel to rotate. Each driven roller frame includes a support fixture and driven roller assemblies arranged on the upper surface of the support fixture. Each driven roller assembly includes a roller seat and a driven wheel rotatably mounted on the roller seat.

[0007] The supporting fixture includes a lower panel with an opening at the lower end, two side panels arranged on the lower panel, and an upper panel arranged on the upper part of the two side panels. A sealing top sealing plate is connected between the two upper panels. Several mounting screw holes for mounting the roller seat are evenly opened on the upper surface of the upper panel. Several structurally reinforced end plates are evenly distributed along the length direction of the supporting fixture.

[0008] Preferably, the side plates located on both sides of the supporting fixture are provided with lifting lugs for hoisting.

[0009] Preferably, the height of the drive wheel gradually decreases from the center outwards.

[0010] Preferably, the driven wheel includes at least two sub-wheels, with a constriction between adjacent sub-wheels.

[0011] Preferably, the bottom of the support fixture is provided with a support base plate that contacts the ground.

[0012] Preferably, the assembly includes active roller frame groups evenly distributed along the cylinder to be welded and driven roller frame groups between each active roller frame group. Each active roller frame group includes at least two active roller frames, and each driven roller frame group includes at least two driven roller frames. A connecting beam is provided between two adjacent active roller frames and two adjacent driven roller frames.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0014] This technical solution supports the design of tooling reconstruction. It adopts a four-fold closed frame of "lower panel - side panel - upper panel - top sealing plate" + end plate reinforcement structure to form a three-dimensional support structure of high-strength box beam. Compared with the flat support of traditional roller frame, the bending stiffness is increased by more than 40%, which can effectively withstand the axial pressure and radial torque of heavy cylinder and avoid structural failure caused by welding deformation.

[0015] The evenly distributed matrix of mounting screw holes on the panel allows for flexible axial adjustment of the roller seat within the supporting fixture. Bolted connections enable adaptation to a wider diameter range, overcoming the limitation of traditional roller frames that are "one machine, one use," and allowing for rapid switching between multiple cylinder specifications.

[0016] The support fixture is designed to be raised, typically by 200-500mm, to provide ample space for welding torch operation and weld seam tracking devices, meeting the multi-station requirements of "flat welding-vertical welding" during hull assembly and reducing welding blind spots. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the active roller frame in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the driven roller frame in an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the drive wheel in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the driven wheel in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the surface of the support tooling in an embodiment of the present invention.

[0022] Figure 6 This is a cross-sectional schematic diagram (AA direction) of the support tooling in an embodiment of this utility model.

[0023] Figure 7 A schematic diagram illustrating the specific application of this utility model embodiment.

[0024] Reference numerals: 100, driving roller frame; 200, driven roller frame; 300, connecting beam; 1, supporting fixture; 11, lower panel; 12, side panel; 13, upper panel; 14, top sealing plate; 15, end plate; 16, lifting lug; 17, mounting screw hole; 2, roller seat; 21, driving wheel; 22, motor; 23, driven wheel; 231, sub-wheel; 232, constricted section; 3, supporting base plate. Detailed Implementation

[0025] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Example

[0027] refer to Figures 1 to 4 A heavy-duty welding assembly roller frame includes several active roller frames 100 and driven roller frames 200. Each active roller frame 100 includes a support fixture 1 and active roller assemblies arranged on the upper surfaces of both ends of the support fixture 1. The active roller assembly includes a roller seat 2, an active wheel 21 rotatably mounted on the roller seat 2, and a motor 22 and a reducer for driving the active wheel 21 to rotate. Structurally, the wheel height of the active wheel 21 gradually decreases from the center outwards. The wheel height decreases from the center to the outer edge, forming a 1:20 tapered surface. When the cylinder radially runs, the tapered surface automatically forms a wedge-shaped friction-increasing effect, increasing the friction coefficient by 15% and effectively preventing slippage. Actual measurements show that when a φ10m cylinder rotates at a speed of 0.5m / min, the axial movement is controlled within ±2mm.

[0028] The driven roller frame 200 includes a support fixture 1 and a driven roller assembly disposed on the upper surface of the support fixture 1. The driven roller assembly includes a roller seat 2 and a driven roller 23 rotatably mounted on the roller seat 2. The driven roller 23 includes three sub-rollers 231, with constricted portions 232 between adjacent sub-rollers 231. The sub-roller 231 structure forms a "three-point contact" pattern through the constricted portions 232. Compared to a single-roller design, the contact area increases by 50%, and the unit pressure decreases by 30%, making it particularly suitable for high welding stress conditions. The constricted portions 232 can also adapt to cylinder ellipticity errors (allowing ±10mm deviation), avoiding wheel cracking caused by local stress concentration.

[0029] For details, please refer to the following: Figure 5 , Figure 6The supporting fixture 1 includes a lower panel 11 with an opening at the lower end, two side panels 12 arranged on the lower panel 11, and an upper panel 13 arranged on the upper end of the two side panels 12. A sealing top sealing plate 14 is connected between the two upper panels 13. A plurality of mounting screw holes 17 for mounting the roller seat 2 are evenly opened on the upper surface of the upper panel 13. A plurality of structurally reinforced end plates 15 are evenly distributed along the length direction of the supporting fixture 1. This technical solution supports the reconfiguration design of tooling 1, employing a four-fold closed frame structure of "lower panel 11 - side plate 12 - upper panel 13 - top sealing plate 14" plus a reinforced end plate 15, forming a high-strength box-beam three-dimensional support structure. Compared to the flat support of traditional roller frames, the bending stiffness is increased by more than 40%, effectively bearing the axial pressure and radial torque of heavy cylinders and avoiding structural failure caused by welding deformation. The upper panel 13 has a matrix of evenly distributed mounting bolt holes 17, which have a double-layer structure to meet the installation of roller seats 2 of different sizes and support the flexible axial adjustment of roller seats 2 in the support tooling 1. Through bolt assembly, it can adapt to an expanded diameter range, solving the limitation of the traditional roller frame "one machine, one use" and realizing rapid switching between multiple cylinder specifications. The height of the support tooling 1 is raised by 200-500mm, providing sufficient space for welding torch operation and weld seam tracking devices, meeting the multi-station requirements of "flat welding-vertical welding" during hull assembly and reducing welding blind spots.

[0030] Structurally, the side plates 12 located on both sides of the supporting fixture 1 are provided with lifting lugs 16 for hoisting. The side plates 12 integrate hoisting lug seats, which, together with special lifting tools, enable the overall hoisting of a single frame. In the dock assembly scenario, the hoisting time of a single roller frame is reduced to within 15 minutes, which is 60% more efficient than the traditional split hoisting, and avoids the risk of structural damage caused by disassembly and assembly.

[0031] In this embodiment, the bottom of the support fixture 1 is provided with a support base plate 3 that contacts the ground. A 10-20mm thick steel plate is added to the bottom, expanding the ground contact area to twice the original support surface. Under a 300-ton cylinder load, the ground pressure drops to below 0.8MPa, meeting the bearing requirements of the shipyard's concrete foundation and preventing equipment tilting caused by foundation settlement.

[0032] In specific applications, refer to Figure 7When the cylinder is long, a 3+2 arrangement is adopted, that is, active rolling structures are set at both ends and in the middle of the cylinder, with driven supports sandwiched between them. Each active rolling structure and driven support is also equipped with two corresponding devices. Specifically, there are 100 sets of active roller frames evenly distributed along the cylinder to be welded, and 200 sets of driven roller frames between each set of active roller frames 100. Each set of active roller frames 100 includes two active roller frames 100, and each set of driven roller frames 200 includes two driven roller frames 200. A connecting beam 300 is provided between two adjacent sets of active roller frames 100 and two adjacent sets of driven roller frames 200. The active frame groups (≥2 units) and the driven frame groups (≥2 units) are rigidly connected by the connecting beam 300, forming an "active-driven-active-driven-active" sandwich layout. This structure generates a counter-torque balance when the cylinder rotates. Combined with the lateral constraint of the connecting beam 300, the radial stiffness of the system is increased by 50%, effectively suppressing the radial shrinkage deformation of the cylinder caused by welding heat input and ensuring the weld alignment accuracy is ≤1mm.

[0033] This technical solution centers on the reconstruction of support fixture 1, forming a complete technical system of "strong support, high precision, and wide adaptability". In heavy assembly and welding scenarios such as hull assembly, it can achieve a cylinder rotation accuracy of ≤0.1mm / m, improve welding efficiency by 30%, and reduce the equipment's total life cycle maintenance cost by 40%, demonstrating significant technical and economic advantages.

[0034] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A heavy-duty assembly and welding roller frame, characterized in that: The system includes several active roller frames (100) and driven roller frames (200). Each active roller frame (100) includes a support fixture (1) and active roller assemblies arranged on the upper surfaces of both ends of the support fixture (1). The active roller assembly includes a roller seat (2), an active wheel (21) rotatably mounted on the roller seat (2), and a motor (22) and a reducer for driving the active wheel (21) to rotate. The driven roller frame (200) includes a support fixture (1) and a driven roller assembly arranged on the upper surface of the support fixture (1). The driven roller assembly includes a roller seat (2) and a driven wheel (23) rotatably mounted on the roller seat (2). The supporting fixture (1) includes a lower panel (11) with an opening at the lower end, two side panels (12) arranged on the lower panel (11), and an upper panel (13) arranged on the upper end of the two side panels (12). A sealing top sealing plate (14) is connected between the two upper panels (13). Several mounting screw holes (17) for mounting the roller seat (2) are evenly opened on the upper surface of the upper panel (13). Several structurally reinforced end plates (15) are evenly distributed along the length direction of the supporting fixture (1).

2. The heavy-duty assembly roller frame according to claim 1, characterized in that: Lifting lugs (16) for hoisting are provided on the side plates (12) located on both sides of the support fixture (1).

3. The heavy-duty assembly roller frame according to claim 1, characterized in that: The height of the drive wheel (21) gradually decreases from the middle outwards.

4. The heavy-duty assembly roller frame according to claim 1, characterized in that: The driven wheel (23) includes at least two sub-wheels (231), with a constriction (232) between adjacent sub-wheels (231).

5. The heavy-duty assembly roller frame according to claim 1, characterized in that: The bottom of the support fixture (1) is provided with a support base plate (3) that is in contact with the ground.

6. A heavy-duty assembly roller frame according to any one of claims 1-5, characterized in that: It includes a group of active roller frames (100) evenly distributed along the cylinder to be welded and a group of driven roller frames (200) between each group of active roller frames (100). The group of active roller frames (100) includes at least two active roller frames (100), and the group of driven roller frames (200) includes at least two driven roller frames (200). A connecting beam (300) is provided between two adjacent active roller frames (100) and two adjacent driven roller frames (200).

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