Steel tube tower section guiding butt joint device and butt joint method thereof

Abstract

The invention relates to the technical field of power transmission line steel tube towers, in particular to a steel tube tower segment guiding butt joint device and a butt joint method thereof, and the steel tube tower segment guiding butt joint device comprises a first butt joint unit and a second butt joint unit. The first butt joint unit comprises a first mounting plate and a first guide piece arranged on the first mounting plate, and a wedge-shaped boss is arranged on the first guide piece; the second butt joint unit comprises a second mounting plate and a second guide piece arranged on the second mounting plate, and the second guide piece is provided with a wedge-shaped groove matched with the wedge-shaped boss; wherein the cross section of the wedge-shaped boss is trapezoidal, and one end, close to the pipe orifice, of the wedge-shaped boss is a trapezoidal short bottom edge. And the inclined surfaces of the wedge-shaped boss and the wedge-shaped groove are matched to form a guide structure which is gradually narrowed from top to bottom. By means of the technical scheme, when the upper steel tube tower section is hoisted and falls, even if initial horizontal deviation or angle deflection exists, the upper steel tube tower section can automatically slide along the inclined face and be corrected to the designed position under the action of gravity, and automatic centering is achieved through gravity component force.

Description

Technical Field

[0001] This invention relates to the technical field of steel pipe towers for power transmission lines, and more specifically, to a guiding and docking device for steel pipe tower segments and a docking method thereof. Background Technology

[0002] In the construction of steel pipe towers for power transmission lines, the vertical connection of segmented steel pipes on site is a critical process. These steel pipes are typically large in size (up to 3 meters in inner diameter and 30 millimeters in wall thickness) and heavy, making on-site installation precision control difficult. Simply relying on direct pipe-to-pipe connection makes it difficult to guarantee joint quality. Specifically, during hoisting, the steel pipes are prone to elastic deformation due to their own weight, causing the pipe ends to change from circular to elliptical. If the ellipticization directions of the upper and lower pipe ends are inconsistent, a smooth connection cannot be achieved. Furthermore, due to misalignment of the center lines of the upper and lower steel pipe walls at the connection point, forced assembly can easily lead to excessive misalignment, resulting in severe stress concentration and significant difficulties in on-site welding, easily causing defects such as incomplete penetration. In addition, small angular or positional deviations in the main steel pipe connection accumulate and amplify as the tower height increases, causing significant deviations in the installation positions of other components connected to the steel pipes (such as inclined flanges, internal stiffening rings, etc.), leading to bolt hole misalignment failure and ultimately affecting the overall alignment of the tower.

[0003] Current on-site assembly commonly employs matching component technology, aiming to achieve rapid assembly and alignment control by replicating the horizontal pre-assembled state in the factory. Conventional matching components typically consist of two connecting plates with coaxial bolt holes, achieving precise positioning by inserting bolts. However, this method's positioning function relies entirely on the precise alignment of the bolts and bolt holes, lacking inherent guiding and correction capabilities. Under complex conditions such as strong winds, hoisting sway, or unstable component centers of gravity, operators need to repeatedly fine-tune to ensure smooth bolt insertion, resulting in extremely low installation efficiency and significant safety risks. Summary of the Invention

[0004] This invention addresses the problem of poor adaptability to hoisting environment during the construction of steel pipe towers by proposing a guiding docking device and docking method for steel pipe tower segments to achieve safe, efficient, and high-precision docking and installation of steel pipe tower segments.

[0005] On one hand, the present invention provides a steel pipe tower segment guiding and docking device for docking and installing adjacent steel pipe tower segments, comprising: The first docking unit is disposed at the pipe opening of the first steel pipe tower segment and includes a first mounting plate for connecting to the first steel pipe tower segment and a first guide member disposed on the first mounting plate. The first guide member is provided with a wedge-shaped boss. The second docking unit is disposed at the pipe opening of the second steel pipe tower segment and includes a second mounting plate for connecting to the second steel pipe tower segment and a second guide member disposed on the second mounting plate. The second guide member has a wedge-shaped groove adapted to the wedge-shaped boss. The wedge-shaped boss has a trapezoidal cross-section, and the end of the wedge-shaped boss closest to the pipe opening has a short trapezoidal base.

[0006] Preferably, the surfaces of the first mounting plate and the second mounting plate are parallel to the axis of the steel pipe tower segment, and one side of the first mounting plate and the second mounting plate are respectively attached to the outer surface of the first steel pipe tower segment and the second steel pipe tower segment; the first guide member is arranged along the length direction of the first mounting plate, and the second guide member is arranged along the length direction of the second mounting plate.

[0007] Preferably, the end of the first mounting plate away from the first steel pipe tower segment has a first guide bevel, the first guide member is connected to the first guide bevel and the wedge-shaped boss extends along the first guide bevel; the end of the second mounting plate away from the second steel pipe tower segment has a second guide bevel adapted to the inclination angle of the first guide bevel and the wedge-shaped groove extends along the second guide bevel.

[0008] Preferably, the first mounting plate has a clearance notch at the end near the pipe opening, and the clearance notch is located on the side of the first mounting plate near the steel pipe tower segment.

[0009] Preferably, the second mounting plate has a limiting notch at the end near the pipe opening, and the limiting notch is located on the side of the second mounting plate near the steel pipe tower segment; when the first steel pipe tower segment and the second steel pipe tower segment are connected in place, the end of the first guide member abuts against the limiting notch.

[0010] Preferably, the first guide and the second guide are respectively provided with coaxial bolt holes. When the wedge-shaped boss and the wedge-shaped groove are fitted and aligned, the connecting bolt passes through the bolt hole to detachably fix the first guide and the second guide.

[0011] Preferably, the minimum included angle between the first guide bevel and the axis of the steel pipe tower segment is 5° to 15°.

[0012] Preferably, a plurality of the first docking units and the second docking units are symmetrically distributed on the circumference of the pipe openings of the corresponding first steel pipe tower segments and the second steel pipe tower segments.

[0013] On the other hand, the present invention provides a method for guiding and connecting steel pipe tower segments, which employs the steel pipe tower segment guiding and connecting device as described above, and includes the following steps: After the wedge-shaped protrusion of the first docking unit and the wedge-shaped groove of the second docking unit are aligned and fitted, the first docking unit and the second docking unit are welded and fixed to the pipe openings of the first steel pipe tower segment and the second steel pipe tower segment, respectively. On-site, the first steel pipe tower segment with the first docking unit fixed is hoisted above the second steel pipe tower segment with the second docking unit fixed. The wedge-shaped protrusion and the wedge-shaped groove are used to guide the first steel pipe tower segment to fall to the designed position. Weld the circumferential butt weld between the first steel pipe tower segment and the second steel pipe tower segment; After the circumferential butt weld passes inspection, the first butt unit and the second butt unit are removed.

[0014] Preferably, the method further includes assembling and adjusting at least three consecutive steel pipe tower segments in a factory to control the cumulative error of the steel pipe tower segment connection and the overall alignment.

[0015] The beneficial effects of this invention are: This invention discloses a steel pipe tower segment guiding and docking device. The device utilizes a wedge-shaped boss and groove to form a guide structure that is wider at the top and narrower at the bottom. During the hoisting and positioning process, the inclined surface of the guide structure automatically converts any initial horizontal deviations and angular deflections into sliding motion along the inclined surface. The self-weight of the upper steel pipe tower segment is used to achieve dynamic correction and precise alignment. This overcomes the inherent defects of traditional methods that rely on direct alignment with bolt holes and lack fault tolerance. It transforms on-site installation from requiring repeated fine-tuning into a single hoisting and automatic positioning operation, significantly improving adaptability, installation efficiency, and safety under harsh conditions such as strong winds.

[0016] This invention discloses a method for guiding and connecting steel pipe tower segments. After the matching components, i.e., the steel pipe tower segment guiding and connecting device, are pre-assembled and inspected in the factory, they are welded and fixed, replicating the precise calibration state from the factory to the construction site. During on-site hoisting, the wedge-shaped structure provides precise replication, ensuring the control accuracy of pipe end roundness, misalignment, and overall alignment, thus avoiding the accumulation of errors. Attached Figure Description

[0017] Fig. 1 This is a three-dimensional structural schematic diagram of a steel pipe tower segment guiding and docking device according to an embodiment of the present invention; Fig. 2 This is a diagram showing the usage state of a steel pipe tower segment guiding and docking device according to an embodiment of the present invention; Fig. 3This is a diagram showing the mating state of the wedge-shaped boss and wedge-shaped groove in a steel pipe tower segment guiding and docking device according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-First docking unit; 01-First steel pipe tower segment; 11-First mounting plate; 110-Avoidance notch; 12-First guide component; 121-Wedge-shaped boss; 2-Second docking unit; 02-Second steel pipe tower segment; 21-Second mounting plate; 210-Limiting notch; 22-Second guide component; 221-Wedge-shaped groove. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0020] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0021] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] To address the problems existing in the aforementioned related technologies, the present invention provides a steel pipe tower segment guiding and docking device and its docking method.

[0023] See Figs. 1 to 3On one hand, an embodiment of the present invention provides a steel pipe tower segment guiding and docking device for docking and installing adjacent steel pipe tower segments, including a first docking unit 1 and a second docking unit 2. The first docking unit 1 is disposed at the pipe opening of the first steel pipe tower segment 01 and includes a first mounting plate 11 for connecting to the first steel pipe tower segment 01 and a first guide member 12 disposed on the first mounting plate 11, the first guide member 12 having a wedge-shaped boss 121; the second docking unit 2 is disposed at the pipe opening of the second steel pipe tower segment 02 and includes a second mounting plate 21 for connecting to the second steel pipe tower segment 02 and a second guide member 22 disposed on the second mounting plate 21, the second guide member 22 having a wedge-shaped groove 221 adapted to the wedge-shaped boss 121; wherein, the cross-section of the wedge-shaped boss 121 is trapezoidal, and the end of the wedge-shaped boss 121 near the pipe opening is a short trapezoidal base.

[0024] It should be noted that the first steel pipe tower segment 01 and the second steel pipe tower segment 02 can be any two adjacent steel pipe tower segments in the steel tower; specifically, the end of the wedge-shaped protrusion 121 near the pipe opening has a trapezoidal short base. The short base of the wedge-shaped protrusion 121 is first inserted into the wide opening of the wedge-shaped groove 221 (corresponding to the long base of the trapezoid of the wedge-shaped groove 221). Then, during the descent, the cross-section of the wedge-shaped protrusion 121 gradually widens (transitioning towards the long base), while simultaneously contacting the inner wall of the wedge-shaped groove 221, whose cross-section gradually narrows (transitioning towards the short base), until they completely fit together. In this way, the wedge-shaped protrusion 121 and the inclined surface of the wedge-shaped groove 221 cooperate to form a guide structure that gradually narrows from top to bottom.

[0025] This design allows the narrow end of the wedge-shaped boss 121 to easily enter the wide entrance of the wedge-shaped groove 221 when the upper steel pipe tower segment is hoisted and lowered, even at the start of the hoisting process, reducing the initial alignment accuracy requirements. As the descent progresses, the cross-section of the wedge-shaped boss 121 gradually widens, contacting the gradually narrowing inclined surface of the wedge-shaped groove 221. The inclined surface converts gravity into a horizontal corrective force, propelling the segment automatically and smoothly towards the final precise positioning point. Therefore, even with initial horizontal or angular deviations, the segment can automatically slide along the inclined surface under gravity and correct itself to the design position, achieving automatic centering using the component of gravity. This not only effectively overcomes the shortcomings of traditional methods, such as difficulty in drilling and the time-consuming and labor-intensive nature of hoisting in windy or unstable conditions, transforming the installation process from relying on operator experience to reliable automatic positioning and greatly reducing the requirements for harsh hoisting conditions; more importantly, it ensures that the steel pipe tower segments can accurately reproduce the factory pre-assembled state, thereby reliably controlling key tolerances such as pipe end roundness and misalignment, reducing assembly stress caused by forced assembly, and improving welding quality and the safety and lifespan of the overall structure. It transforms the passive, precise alignment of the steel pipe tower segments during hoisting into active, guided sliding, thus significantly improving installation accuracy and efficiency.

[0026] In one embodiment of the present invention, the surfaces of the first mounting plate 11 and the second mounting plate 21 are parallel to the axis of the steel pipe tower segment, and one side of the first mounting plate 11 and the second mounting plate 21 are respectively attached to the outer surface of the first steel pipe tower segment 01 and the second steel pipe tower segment 02 respectively; the first guide member 12 is arranged along the length direction of the first mounting plate 11, and the second guide member 22 is arranged along the length direction of the second mounting plate 21.

[0027] It should be noted that setting the plate surface parallel to the axis of the steel pipe tower segment and attaching it to the outer wall surface ensures that the mounting base surface between the steel pipe tower segments is consistent with the axis of the steel pipe, laying the foundation for subsequent guiding accuracy. Simultaneously, the first guide member 12 and the second guide member 22 are arranged along the length of the first mounting plate 11 and the second mounting plate 21, respectively, so that the longitudinal axis of the guiding structure remains parallel to the axis of the steel pipe. This not only makes the overall structure of the device more compact and fits tightly against the pipe wall, reducing the risk of interference with the external environment during hoisting, but also allows the first guide member 12 and the second guide member 22, and the load they bear, to be directly transferred to the main structure of the steel pipe along the first mounting plate 11 and the second mounting plate 21, respectively, improving local stiffness and load-bearing stability. More importantly, this arrangement ensures that the guiding force direction of the wedge-shaped boss 121 and the wedge-shaped groove 221 is highly consistent with the axial movement direction of the steel pipe segment, minimizing the generation of asymmetric torque, ensuring the stability and accuracy of guidance during the descent, avoiding jamming or deflection that may be caused by structural eccentricity or insufficient rigidity, and ultimately guaranteeing the accuracy and reliability of the docking.

[0028] In one embodiment of the present invention, a first guide bevel is formed at the end of the first mounting plate 11 away from the first steel pipe tower segment 01, a first guide member 12 is connected to the first guide bevel and a wedge-shaped boss 121 extends along the first guide bevel; a second guide bevel is formed at the end of the second mounting plate 21 away from the second steel pipe tower segment 02, the second guide bevel is adapted to the inclination angle of the first guide bevel, a second guide member 22 is connected to the second guide bevel and a wedge-shaped groove 221 extends along the second guide bevel.

[0029] It should be noted that the first and second guide bevels are inclined relative to the axis of the steel pipe tower segment, specifically formed by the edges of the first mounting plate 11 and the second mounting plate 21. These bevels create a certain angle between the first guide member 12 and the second guide member 22 and the axis of the steel pipe tower segment. This is not a simple adjustment of the installation position, but rather a clever increase in the effective guide stroke. When the wedge-shaped boss 121 falls into the wide opening at the top of the wedge-shaped groove 221, the longer slope provides sufficient sliding distance for correcting lifting deviations, making the transition process for precise alignment smoother and more reliable. Secondly, the force transmission path is optimized. Specifically, the first guide member 12 is connected to the first guide slope, and the second guide member 22 is connected to the second guide slope. When the wedge-shaped boss 121 slides along the slope of the wedge-shaped groove 221, the horizontal component force generated will act directly on the inclined surfaces of the first mounting plate 11 and the second mounting plate 21 through the guide members, and be transmitted along their surfaces to the base area welded to the steel pipe. This avoids generating huge torques at the edges of the first mounting plate 11 and the second mounting plate 21, thereby significantly reducing local stress and enhancing the stability and durability of the structure. This ensures the overall rigidity of the device when bearing guiding loads, effectively preventing jamming or misalignment caused by component deformation, and providing a guarantee for achieving high-precision docking.

[0030] In one embodiment of the present invention, a wedge-shaped boss 121 protrudes from the side of the first guide member 12 facing away from the first steel pipe tower segment 01, and a wedge-shaped groove 221 is formed on the side of the second guide member 22 facing the second steel pipe tower segment 02. Thus, the wedge-shaped groove 221, in addition to having a wide opening at its upper end for insertion of the wedge-shaped boss 121, also has an opening on the side facing the second steel pipe tower segment 02, facilitating initial docking and installation as well as subsequent dismantling operations.

[0031] In one embodiment of the present invention, the end of the first mounting plate 11 near the pipe opening is provided with a clearance notch 110, and the clearance notch 110 is located on the side of the first mounting plate 11 near the steel pipe tower segment.

[0032] Furthermore, the lower edge of the first mounting plate 11 extends beyond the end face of the pipe opening of the first steel pipe tower segment 01. The clearance notch 110 is positioned to leave sufficient space on the upper edge of the pipe wall of the lower second steel pipe tower segment 02, ensuring that when the upper first steel pipe tower segment 01 falls, its first mounting plate 11 will never collide or interfere with the pipe wall of the lower second steel pipe tower segment 02. In addition, the extended clearance notch 110 forms an unobstructed welding operation window and beveling area on the outside of the pipe opening. Welders can perform circumferential welding operations on the tightly fitting pipe opening end without hindrance, ensuring that the welding torch can reach the root of the weld at the optimal angle, thereby achieving full penetration welding and ensuring the internal quality and connection strength of the weld.

[0033] In one embodiment of the present invention, the end of the second mounting plate 21 near the pipe opening is provided with a limiting notch 210, the limiting notch 210 being located on the side of the second mounting plate 21 near the steel pipe tower segment; when the first steel pipe tower segment 01 and the second steel pipe tower segment 02 are connected in place, the end of the first guide member 12 abuts against the limiting notch 210.

[0034] It should be noted that the limiting notch 210 has the same technical effect as the aforementioned avoidance notch 110. On the one hand, it is used to avoid interference with the docking operation of the first steel pipe tower segment 01 and the second steel pipe tower segment 02; on the other hand, it provides a welding operation window and bevel area. In addition, the limiting notch 210 and the avoidance notch 110 together constitute positioning and stopping, and the limiting notch 210 provides a precise and reliable stopping reference for guiding the docking process. Specifically, when the upper steel pipe tower segment 01 slides down the guide slope under the action of gravity, its designed installation position is accurately determined. The limiting notch 210 determines the end point of the docking stroke through its notch abutting contact with the end of the first guide member 12. This ensures that the relative position of the pipe openings of the first steel pipe tower segment 01 and the second steel pipe tower segment 02 can accurately reproduce the calibration state during factory pre-assembly, thereby effectively controlling the circumferential misalignment. Secondly, this limiting method can disperse local stress, improving the durability and reusability of the device. The limiting notch 210 can transform a complex spatial positioning problem into a simple and reliable mechanical limiting problem, which is a key design to ensure the final docking accuracy and operational safety.

[0035] In one embodiment of the present invention, the first guide member 12 and the second guide member 22 are respectively provided with coaxial bolt holes. When the wedge-shaped boss 121 and the wedge-shaped groove 221 are fitted and aligned, the connecting bolt passes through the bolt hole to detachably fix the first guide member 12 and the second guide member 22.

[0036] In one embodiment of the present invention, the minimum included angle between the first guide bevel and the axis of the steel pipe tower segment is 5° to 15°.

[0037] It should be noted that the included angle design directly determines the guiding performance and mechanical characteristics when the wedge-shaped boss 121 and the wedge-shaped groove 221 mate. When the included angle is optimized to be between 5° and 15°, an ideal balance between guiding efficiency and operational stability is achieved. Within this range, the inclined surface can provide a sufficiently large guiding force to ensure that frictional resistance can be reliably overcome under various working conditions, achieving smooth and stable automatic sliding and correction. At the same time, its guiding process has sufficient buffer stroke to avoid rigid impact, allowing the segment weighing several tons to slide smoothly and controllably to the designed position, ensuring docking accuracy and improving operational safety.

[0038] In one embodiment of the present invention, a plurality of first docking units 1 and second docking units 2 are centrally symmetrically distributed on the circumference of the pipe openings of the corresponding first steel pipe tower segment 01 and second steel pipe tower segment 02.

[0039] It should be noted that this symmetrical and evenly distributed structural design allows the guiding and corrective forces generated by the inclined surfaces of the wedge-shaped boss 121 and the wedge-shaped groove 221 to act evenly and symmetrically on the entire circumference of the steel pipe tower segment. When the upper segment being hoisted has an initial offset, the symmetrically arranged guide points can simultaneously generate a synergistic corrective torque, effectively preventing the upper segment from twisting or getting stuck on one side during descent, ensuring that it falls smoothly and automatically along the preset path. This not only significantly reduces the stringent requirements for hoisting operation precision and enhances adaptability to complex on-site conditions (such as wind disturbance), but more importantly, it ensures the concentricity of the steel pipe tower segments during docking, uniformly controlling the misalignment at each point on the circumference of the pipe opening, laying a solid foundation for obtaining high-quality circumferential welds. At the same time, the multi-point symmetrical support pattern optimizes the load distribution, avoids local stress concentration, and enhances the rigidity and stability of the entire docking device during hoisting and temporary fixing stages, thereby comprehensively ensuring the safety, efficiency, and final quality of the large steel structure installation.

[0040] On the other hand, the present invention provides a method for guiding and connecting steel pipe tower segments, which employs the steel pipe tower segment guiding and connecting device as described above, and includes the following steps: S1: At the factory, after aligning and fitting the wedge-shaped boss 121 of the first docking unit 1 with the wedge-shaped groove 221 of the second docking unit 2, the first docking unit 1 and the second docking unit 2 are detachably connected by connecting bolts. The first docking unit 1 and the second docking unit 2 are then welded and fixed to the pipe openings of the first steel pipe tower segment 01 and the second steel pipe tower segment 02, respectively. Then, the connecting bolts between the first docking unit 1 and the second docking unit 2 are removed. At this point, the first docking unit 1 is fixed to the first steel pipe tower segment 01, and the second docking unit 2 is fixed to the second steel pipe tower segment 02. They are then painted and shipped to the site.

[0041] S2: On site, the first steel pipe tower segment 01, which is fixed with the first docking unit 1, is hoisted above the second steel pipe tower segment 02, which is fixed with the second docking unit 2. Using the cooperation of the wedge-shaped boss 121 and the wedge-shaped groove 221 as a guide, the first steel pipe tower segment 01 is lowered to the designed position. At this time, the angle of the first steel pipe tower segment 01 will automatically turn and reset following the wedge-shaped groove 221. After falling to the bottom of the wedge-shaped groove 221, the connecting bolts detachably connect the first docking unit 1 and the second docking unit 2 again. S3: Weld the circumferential butt weld between the first steel pipe tower segment 01 and the second steel pipe tower segment 02; S4: After the circumferential butt weld has passed inspection, the first butt unit 1 and the second butt unit 2 shall be removed.

[0042] In one embodiment of the present invention, the aforementioned step S1 further includes assembling and adjusting at least three consecutive steel pipe tower segments in a factory to control the cumulative error of the steel pipe tower segment connection and the overall alignment.

[0043] It also includes: when the first steel pipe tower segment 01 falls to the design position, the connecting bolts pass through the bolt holes to detachably fix the first guide member 12 and the second guide member 22; welding the circumferential butt weld between the first steel pipe tower segment 01 and the second steel pipe tower segment 02; performing quality inspection on the circumferential butt weld, and after passing the inspection, cutting off the connection between the first butt unit 1 and the second butt unit 2 and the steel pipe tower segment and dismantling it; and finally grinding the remaining weld scars on the first steel pipe tower segment 01 and the second steel pipe tower segment 02.

[0044] In summary, the present invention provides a method for guiding and connecting steel pipe tower segments. By welding and fixing the matching components—namely, the first connecting unit 1 and the second connecting unit 2—after they have passed pre-assembly and acceptance testing in the factory, the precise calibration state from the factory is replicated to the construction site. During on-site hoisting, the wedge-shaped structure provides precise replication, ensuring the control accuracy of pipe end roundness, misalignment, and overall alignment, thus avoiding the accumulation of errors. In conclusion, the present invention achieves a comprehensive improvement in the safety, efficiency, and accuracy of on-site connection of steel pipe tower segments.

[0045] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A steel pipe tower segment guiding and docking device for docking and installing adjacent steel pipe tower segments, characterized in that, include: The first docking unit (1) is located at the pipe opening of the first steel pipe tower segment (01) and includes a first mounting plate (11) for connecting to the first steel pipe tower segment (01) and a first guide member (12) provided on the first mounting plate (11). The first guide member (12) is provided with a wedge-shaped boss (121). The second docking unit (2) is provided at the pipe opening of the second steel pipe tower segment (02) and includes a second mounting plate (21) for connecting to the second steel pipe tower segment (02) and a second guide (22) provided on the second mounting plate (21). The second guide (22) has a wedge-shaped groove (221) adapted to the wedge-shaped boss (121). The wedge-shaped protrusion (121) is trapezoidal, and the end of the wedge-shaped protrusion (121) near the pipe opening is a trapezoidal short base.

2. The steel pipe tower segment guiding and docking device according to claim 1, characterized in that, The surfaces of the first mounting plate (11) and the second mounting plate (21) are parallel to the axis of the steel pipe tower segment, and one side of the first mounting plate (11) and the second mounting plate (21) are respectively attached to the outer surfaces of the first steel pipe tower segment (01) and the second steel pipe tower segment (02); the first guide (12) is arranged along the length direction of the first mounting plate (11), and the second guide (22) is arranged along the length direction of the second mounting plate (21).

3. The steel pipe tower segment guiding and docking device according to claim 2, characterized in that, The first mounting plate (11) has a first guide bevel formed at the end away from the first steel pipe tower segment (01), the first guide member (12) is connected to the first guide bevel and the wedge-shaped boss (121) extends along the first guide bevel; the second mounting plate (21) has a second guide bevel formed at the end away from the second steel pipe tower segment (02) with an inclination angle adapted to the first guide bevel, the second guide member (22) is connected to the second guide bevel and the wedge-shaped groove (221) extends along the second guide bevel.

4. The steel pipe tower segment guiding and docking device according to claim 3, characterized in that, The first mounting plate (11) has a clearance notch (110) at the end near the pipe opening, and the clearance notch (110) is located on the side of the first mounting plate (11) near the steel pipe tower segment.

5. The steel pipe tower segment guiding and docking device according to claim 4, characterized in that, The second mounting plate (21) has a limiting notch (210) at the end near the pipe opening. The limiting notch (210) is located on the side of the second mounting plate (21) near the steel pipe tower segment. When the first steel pipe tower segment (01) and the second steel pipe tower segment (02) are connected in place, the end of the first guide member (12) abuts against the limiting notch (210).

6. The steel pipe tower segment guiding and docking device according to claim 5, characterized in that, The first guide (12) and the second guide (22) are respectively provided with coaxial bolt holes. When the wedge-shaped boss (121) and the wedge-shaped groove (221) are fitted and aligned, the connecting bolt passes through the bolt hole to detachably fix the first guide (12) and the second guide (22).

7. The steel pipe tower segment guiding and docking device according to claim 5, characterized in that, The minimum included angle between the first guide bevel and the axis of the steel pipe tower segment is 5° to 15°.

8. The steel pipe tower segment guiding and docking device according to claim 1, characterized in that, Multiple first docking units (1) and second docking units (2) are symmetrically distributed on the circumference of the pipe openings of the corresponding first steel pipe tower segments (01) and second steel pipe tower segments (02).

9. A method for guiding and connecting steel pipe tower segments, employing the steel pipe tower segment guiding and connecting device as described in any one of claims 1 to 7, characterized in that, Includes the following steps: After the wedge-shaped protrusion (121) of the first docking unit (1) and the wedge-shaped groove (221) of the second docking unit (2) are aligned and fitted, the first docking unit (1) and the second docking unit (2) are welded and fixed to the pipe openings of the first steel pipe tower segment (01) and the second steel pipe tower segment (02), respectively. On site, the first steel pipe tower segment (01) with the first docking unit (1) fixed is hoisted above the second steel pipe tower segment (02) with the second docking unit (2) fixed. The wedge-shaped boss (121) and the wedge-shaped groove (221) are used to guide the first steel pipe tower segment (01) to fall to the designed position. Weld the circumferential butt weld between the first steel pipe tower segment (01) and the second steel pipe tower segment (02); After the circumferential butt weld is inspected and approved, the first butt unit (1) and the second butt unit (2) are removed.

10. The method for guiding and connecting steel pipe tower segments according to claim 9, characterized in that, It also includes assembling and adjusting at least three consecutive steel pipe tower segments in the factory to control the cumulative error of the steel pipe tower segment connection and the overall alignment.

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