Tower body splicing method based on docking platform

Abstract

According to the tower body splicing method based on the butt joint platform, the two first racks and the two second racks which are assembled in advance are hoisted to the four sides of the tower body, so that the maneuverability of operation is higher, then the tower body is split, the lower portion, not meeting the assembly requirement, of the tower body is removed, and the tower body is spliced. Meanwhile, the upper portion of the tower body is reserved to be in butt joint with the lower portion of the tower body to be in butt joint, reassembly is achieved, time and labor are saved in the whole process from tower body splitting to reassembly, and finally the reassembled tower body meets the assembly requirement.

Description

Technical Field

[0001] The invention relates to the technical field of crane tower bodies, and in particular to a tower body splicing method based on a docking platform. Background Art

[0002] The appearance of the existing marine crane mainly includes a tower structure, a cab assembly, a boom assembly, a hook assembly, and a wire rope part. When the ship is sailing, the boom assembly of the marine crane is located below the line of sight and is not affected by the line of sight. The width of the cab assembly, the hook assembly, and the wire rope part are all smaller than the tower structure. The tower structure of the marine crane is not only the main structure to meet the load of the crane, but also plays a role in protecting the internal mechanism of the crane as a closed structure. For example, the patent document with Chinese patent number 201110371219.9 and announcement date 2014.04.09 discloses a tower structure of a marine crane. The tower body comprises a tower body and a driver's cab, wherein a pulley portion matched with a steel wire rope is arranged on the top of the tower body, and a boom mounting portion matched with a boom is arranged on the bottom. The tower body comprises a lower cylindrical structure, a middle conical structure and an upper cylindrical structure connected in sequence, wherein the thicknesses of the lower cylindrical structure, the middle conical structure and the upper cylindrical structure gradually decrease, and the diameter of the lower cylindrical structure is greater than the diameter of the upper cylindrical structure. A maintenance door opening is arranged on the lower cylindrical structure, a ventilation window opening and a driver's cab opening are arranged on the middle conical structure, and an air inlet window opening is arranged on the upper cylindrical structure. Reinforced ring ribs and reinforced longitudinal ribs are welded on the inner surface of the tower body.

[0003] The above document divides the tower body into three parts and arranges the positions of the tower body, the wire rope pulley part and the boom mounting part, so that the overall dimensions are small and can meet the requirements of the tower body overall dimensions under the 5-degree line of sight requirement. However, it does not consider a quick and reliable installation method for replacing the lower part of the tower body when the upper part of the tower body does not match the lower part of the tower body during the installation of a large tower body. Summary of the invention

[0004] The purpose of the present invention is to provide a tower body splicing method based on a docking platform. When it is found that the tower body cannot be assembled on a rotating platform, the tower body can be quickly processed and disassembled, and reliably reassembled so that the tower body meets the assembly requirements.

[0005] To achieve the above purpose, a tower body splicing method based on a docking platform comprises the following steps: S1 determines the position of the sealing plate inside the tower body, then marks the position corresponding to the sealing plate on the outer side of the tower body, determines the cutting area on the outer side of the tower body, and then cuts off the sealing plate inside the tower body; S2 hoists the tower body to the splitting station and fixes it, then hoists two gantry 2 to one side of the lower part of the tower body, adjusts the height of gantry 2 to the cutting area, so that the two gantry 2 are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body, then hoists two gantry 1 to the other side of the lower part of the tower body, adjusts the height of gantry 1 to the cutting area, so that the two gantry 1 are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body, and at the same time, the two gantry 1 are respectively aligned with the two gantry 2 in the direction of the horizontal line; S3: welding fixings on the outer side of the upper part of the tower body above the cutting area through the first and second stands, and then cutting in the cutting area on the outer side of the tower body; After S4 cutting is completed, the tower body is divided into the upper part and the lower part of the tower body, and then the first and second racks are removed respectively, and then the upper part of the tower body is moved to the storage position, and a groove is opened at the cutting end of the upper part of the tower body; S5 removes the cut lower part of the tower body, hoists the lower part of the tower body to be connected to the connection station, and then hoists the upper part of the tower body with the groove opened in step S4 to the top of the connection station for connection with the lower part of the tower body to be connected. After connection, hoist the two gantry twos to one side of the lower part of the tower body, adjust the height of the gantry two to the upper end of the lower part of the tower body to be connected, and hoist the two gantry ones to the height of the upper end of the lower part of the tower body to be connected, so that the two gantry ones are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body to be connected, and at the same time, the two gantry ones are respectively aligned with the two gantry twos in the direction of the horizontal line, and finally welded at the groove to make the upper part of the tower body and the lower part of the tower body to be connected form a whole, and complete the reassembly of the tower body.

[0006] In the above method, when it is found that the lower part of the tower body cannot be installed on the revolving platform, two racks one and two racks two are used, and then a frame structure is formed on one side and the other side of the tower body, and the height of the racks one and two can reach the height of the cutting area, so that it is convenient for the operator to split the tower body, and then the upper part of the tower body is hoisted to the shelving station for cutting to form a groove, which is convenient for subsequent reliable docking with the lower part of the tower body to be docked, and at the same time, the lower part of the tower body that does not meet the assembly requirements is removed, so that the local material of the tower body can be reused and the use cost is reduced; then the two racks one and two racks two are moved to the surroundings of the lower part of the tower body to be docked to form a frame, and the racks one and two are made to reach the height of the cutting area. The height of rack one and rack two reaches the height of the upper end of the lower part of the tower body to be connected, and then Fang Baini welds through rack one and rack two, and moves the pre-assembled racks one and two to the outside of the tower body, which makes the operation more maneuverable, can effectively speed up the process of tower body disassembly and reassembly, and can reliably ensure the assembly height, thereby improving work efficiency, saving time and manpower, so that the reassembled tower body meets the assembly requirements, and welding fixings on the side of the upper tower body before cutting can reduce the impact on the upper tower body during the cutting process, thereby ensuring the reliability of the subsequent connection between the upper tower body and the lower tower body to be connected.

[0007] Further, the step S1 includes S1.1 to S1.5, S1.1 Measure the distance from the upper end face to the lower end face of the sealing plate inside the tower body, and then measure the distance from the lower end face of the sealing plate to the upper end face of the bottom plate at the bottom of the tower body; S1.2 Marking line 1 and marking line 2 are horizontally set on the outer side of the tower body, so that the distance from marking line 1 to the upper end face of the lower bottom plate of the tower body is equal to the distance from the lower end face of the cover plate to the upper end face of the lower bottom plate of the tower body, and the distance from marking line 2 to marking line 1 is equal to the distance from the upper end face of the cover plate to the lower end face; S1.3 Set the center line horizontally between the marked line 1 and the marked line 2, so that the distance from the marked line 1 to the center line is equal to the distance from the marked line 2 to the center line. Then, based on the center line, set the marked line 3 horizontally within the range of one quarter of the distance from the marked line 1 to the center line to one half of the distance from the marked line 1 to the center line, and set the marked line 4 horizontally within the range of one quarter of the distance from the marked line 2 to the center line to one half of the distance from the marked line 2 to the center line. S1.4 Determine the area between marked line 3 and marked line 4 as the cutting area; S1.5 Weld a clamping plate at the lower end of the sealing plate so that the clamping plate and the sealing plate are connected to form a whole, then determine the cutting end face on the sealing plate, and cut the sealing plate along the cutting end face so that after the sealing plate is cut, a root is formed between the cutting end face and the inner side of the tower body, and remove the clamping plate and the sealing plate after cutting.

[0008] The above settings determine the position of the sealing plate outside the tower body, thereby determining the cutting area outside the tower body, which is convenient for subsequent tower body cutting. Reserving the root during the sealing plate cutting process can prevent damage to the inner side of the upper part of the tower body.

[0009] Furthermore, the step S2 also includes: Before lifting, assemble the rack one and rack two first, and then weld the support bases at the bottom of rack one and rack two respectively; lift the two racks two to one side of the lower part of the tower body, and align the two racks two in a direction perpendicular to the horizontal line, then lift the two racks one to the other side of the lower part of the tower body, and align the two racks one in a direction perpendicular to the horizontal line, After the two racks 2 are aligned, the support base of the rack 2 is fixed, and then the connecting pieces are installed at the bottom of the two racks 2, and the connecting plates are installed at the top of the two racks 2, so that the two racks 2 are connected by the connecting pieces and the connecting plates to form a whole; After the two racks 1 are aligned, the support base of rack 1 is fixed, and then connecting pieces are installed at the bottom of the two racks 1, and connecting plates are installed at the top of the two racks 1, so that the two racks 1 are connected to form a whole through the connecting pieces and the connecting plates, and then connecting pieces and connecting plates are installed at the bottom and top of racks 1 and 2 on the same side respectively, so that the two racks 1 and 2 are connected to form a whole through the connecting pieces and the connecting plates, thereby improving stability.

[0010] The above arrangement, by aligning the two gantry one and the two gantry two in the direction perpendicular to the horizontal line, can ensure that the two gantry one and the two gantry two are at the same height, making it easy to move the gantry one and the two gantry two to the outside of the tower body, thereby making it convenient for workers to move between the gantry one and the two gantry two, saving time and improving work efficiency.

[0011] Furthermore, the step S3 also includes: The fixing parts are welded to the outer side of the upper part of the tower body in sequence around the upper part of the tower body, and then the fixing parts are welded between each other so that the fixing parts on the outer side of the upper part of the tower body are fixed integrally to the outer side of the upper part of the tower body. Before carbon planer cutting, the crane is controlled to make the steel wire rope for lifting the tower body in a taut state, and then round carbon rods and flat carbon rods are used in the cutting area on the outer side of the tower body to carry out carbon planer cutting around the tower body clockwise.

[0012] The above arrangement can ensure better stability during the process of lifting the tower body and avoid large shaking. In addition, it is convenient to first cut the depth from the outer side to the inner side of the tower body through a round carbon rod, and then trim it through a flat carbon rod.

[0013] Furthermore, the step S4 also includes: Remove the connecting parts and connecting plates between the two racks 1, between the two racks 2, and between rack 1 and rack 2, and then remove rack 1 and rack 2 in turn.

[0014] The above arrangement facilitates splitting the rack 1 and the rack 2 connected as one into different parts for removal.

[0015] Furthermore, the step S4 also includes: Taking the carbon planer cutting surface as a reference, a groove is opened outwardly at the carbon planer cutting end of the upper part of the tower body, so that the groove slope and the carbon planer cutting surface are inclined, and the inclination angle between the groove slope and the carbon planer cutting surface is 30°~50°.

[0016] The above arrangement facilitates the connection between the upper part of the tower body and the lower part of the tower body to be connected through the groove.

[0017] Furthermore, the step S4 also includes: If the carbon planer cut end of the upper part of the tower body after splitting is damaged and a groove cannot be opened at the carbon planer cut end, a marking line five is horizontally set on the outer surface of the upper part of the tower body within a range of 400~600mm from the carbon planer cut surface, and carbon planer cutting is performed at the marking line five, and a groove is opened after cutting.

[0018] The above arrangement facilitates the removal of the unqualified carbon planer cut end of the upper part of the tower body after the splitting, and then docking with the lower part of the tower body to be docked.

[0019] Furthermore, the step S5 also includes: After the upper part of the tower body with the groove opened in step S4 is hoisted above the docking station, the upper part of the tower body and the lower part of the tower body to be spliced ​​are placed on the same axis, and the upper part of the tower body is moved downward along the axis direction. When the groove of the upper part of the tower body abuts against the upper end of the lower part of the tower body to be docked, the crane operation is stopped.

[0020] The above arrangement enables the upper part of the tower body with the groove to be aligned with the lower part of the tower body to be butted, thereby facilitating welding at the groove.

[0021] Furthermore, the step S5 also includes After the two racks 2 are aligned, the support base of the rack 2 is fixed, and then the connecting pieces are installed at the bottom of the two racks 2, and the connecting plates are installed at the top of the two racks 2, so that the two racks 2 are connected by the connecting pieces and the connecting plates to form a whole; Hoist two gantry 2 to one side of the lower part of the tower to be docked, so that the two gantry 2 are placed symmetrically about the horizontal line passing through the center of the lower part of the tower to be docked, and the two gantry 2 are aligned in a direction perpendicular to the horizontal line, then hoist two gantry 1 to the other side of the lower part of the tower to be docked, adjust the height of gantry 1 to the upper end of the lower part of the tower to be docked, and align the two gantry 1 in a direction perpendicular to the horizontal line; After the two racks 1 are aligned, the support base of rack 1 is fixed, and then connecting pieces are installed at the bottom of the two racks 1, and connecting plates are installed at the top of the two racks 1, so that the two racks 1 are connected to form a whole through the connecting pieces and the connecting plates, and then connecting pieces and connecting plates are installed at the bottom and top of racks 1 and 2 on the same side respectively, so that the two racks 1 and 2 are connected to form a whole through the connecting pieces and the connecting plates, thereby improving stability.

[0022] The above arrangement ensures that the two stands one and the two stands two are at the same height by aligning the two stands one and the two stands two in a direction perpendicular to the horizontal line. The bottoms of the two stands one and the two stands are fixed by connecting parts, and the connecting plates fill the gap between the tops of the two stands one and the two stands, making it convenient for workers to move between the two stands to perform work.

[0023] Furthermore, the step S5 further includes: Adjust the height of the second stand to the upper end of the lower part of the tower body to be connected: make the height of the second stand match the height of the upper end of the lower part of the tower body to be connected, and at the same time make the distance from the second stand to the upper end of the lower part of the tower body to be connected match the distance required by the staff during operation; Adjust the height of the stand 1 to the upper end of the lower part of the tower to be connected: make the height of the stand 1 match the height of the upper end of the lower part of the tower to be connected, and at the same time make the distance from the stand 1 to the upper end of the lower part of the tower to be connected match the distance required by the staff during operation.

[0024] The above arrangement makes it convenient for the workers to stand on the first and second stands to weld the grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the work flow chart of the present invention.

[0026] Figure 2 It is the front view of the tower body in the present invention.

[0027] Figure 3 It is a side view of the tower body in the present invention.

[0028] Figure 4 It is a schematic diagram of the sealing plate connected to the inner side of the tower body in the present invention.

[0029] Figure 5 It is a schematic diagram of removing the carbon planer cutting end portion of the upper part of the tower body in the present invention.

[0030] Figure 6 It is a schematic diagram of the bevel opening on the upper part of the tower body in the present invention.

[0031] Figure 7 It is a schematic diagram of marking the cutting area on the outer side of the tower body of the present invention.

[0032] Figure 8 It is a top view of the first stand in the present invention.

[0033] Fig. 9 It is a top view of the second stand in the present invention.

[0034] Fig.10 It is a schematic diagram of the tower body being placed between the first platform and the second platform in the present invention. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 10 As shown, a tower body splicing method based on a docking platform, The specific steps include: S1 determines the position of the sealing plate 4 on the inner side of the tower body, then marks the position corresponding to the sealing plate 4 on the outer side 31 of the tower body, and determines the cutting area 33 on the outer side 31 of the tower body, and then cuts off the sealing plate 4 on the inner side of the tower body, including S1.1~S1.5, S1.1 Measure the distance from the upper end surface 41 to the lower end surface 42 of the sealing plate 4 in the tower body, and then measure the distance from the lower end surface 42 of the sealing plate to the upper end surface 211 of the bottom plate 21 of the lower part 2 of the tower body; S1.2 mark line 11 and mark line 2 12 are horizontally arranged on the outer side surface 31 of the tower body, so that the distance from the mark line 11 in the direction perpendicular to the bottom plate 21 of the lower part 2 of the tower body to the upper end surface 211 of the bottom plate 21 of the lower part 2 of the tower body is equal to the distance from the lower end surface 42 of the sealing plate 4 to the upper end surface 211 of the bottom plate 21 of the lower part 2 of the tower body, and the distance from the mark line 2 12 in the direction perpendicular to the bottom plate 21 of the lower part 2 of the tower body to the mark line 11 is equal to the distance from the upper end surface 41 to the lower end surface 42 of the sealing plate 4; S1.3 The center line 5 is horizontally arranged between the marked line 1 11 and the marked line 2 12, so that the vertical distance from the marked line 1 11 to the center line 5 is equal to the vertical distance from the marked line 2 12 to the center line 5, and then the marked line 3 13 is horizontally arranged within a range from one quarter of the distance from the marked line 1 11 to the center line 5 to one half of the distance from the marked line 1 11 to the center line 5, and the marked line 4 14 is horizontally arranged within a range from one quarter of the distance from the marked line 2 12 to the center line 5 to one half of the distance from the marked line 2 12 to the center line 5. In this embodiment, the marked line 1 11, the marked line 2 12, the marked line 3 13, the marked line 4 14 and the center line 5 on the same outer side surface 31 of the upper part of the tower body are arranged parallel to each other; S1.4 determining that the area between the marked line three 13 and the marked line four 14 is the cutting area 33. In this embodiment, the distance between the marked line three 13 and the center line 5 is equal to one quarter of the distance between the marked line one 11 and the center line 5, and the distance between the marked line four 14 and the center line 5 is equal to one quarter of the distance between the marked line two 12 and the center line 5; S1.5 A clamping plate 6 is welded to the lower end of the sealing plate 4 so that the clamping plate 6 is connected to the sealing plate 4 to form a whole and support the sealing plate 4. Then, a cutting end face 43 is determined on the sealing plate 4. In this embodiment, taking the inner side surface 32 of the tower body as a reference, a marking line six (not marked in the figure) is horizontally set at a position extending 10 mm in the direction perpendicular to the inner side surface 32 of the tower body. The plane passing through the marking line six and parallel to the inner side surface 32 of the tower body is determined as the cutting end face 43, and gas cutting is performed along the cutting end face 43, so that after the sealing plate 4 is cut, a root 7 is formed between the cutting end face 43 and the inner side surface 32 of the tower body, that is, the thickness of the root 7 is 10 mm. This can effectively prevent the inner side surface 32 of the upper part 8 of the tower body from being damaged during gas cutting. After cutting, the clamping plate 6 and the sealing plate 4 are removed.

[0037] S2 uses a crane to lift the pier 1 to the splitting station, lifts the tower body to the top of the pier 1, and after the flange surface of the bottom plate 21 of the lower part 2 of the tower body abuts against the pier 1, welds the stop plate 3 between the pier 1 and the lower part 2 of the tower body, thereby fixing the tower body on the splitting station, and then assembles the stand z1 and the stand z2, and welds the support seat z4 at the bottom of the stand z1 and the stand z2, respectively, lifts the two stand z2 to one side of the lower part 2 of the tower body, and adjusts the stand z2 to the height of the cutting area 33. In this embodiment, specifically, the height of the stand z2 is adjusted to the same height as the cutting area 33. The height of the two gantry z2s is matched, and the distance from the two gantry z2s to the cutting area 33 is matched with the distance required by the staff when working. The two gantry z2s are placed symmetrically about the horizontal line a30 passing through the center of the lower part of the tower body, and the two gantry z2s are aligned in a direction perpendicular to the horizontal line a30. After the two gantry z2s are aligned, the support seats z4 of the two gantry z2s are fixed, and then the connecting pieces z4 are installed at the bottom of the two gantry z2s, and the connecting plates (not marked in the figure) are installed at the tops of the two gantry z2s, so that the two gantry z2s are connected by the connecting pieces and the connecting plates to form Then, the two gantry z1 are hoisted to the other side of the lower part 2 of the tower body, and the height of the gantry z1 to the cutting area 33 is adjusted. In this embodiment, the height of the gantry z1 is matched with the height of the cutting area 33, and the distance from the gantry z1 to the cutting area 33 is matched with the distance required by the staff when working, so that the two gantry z1 are symmetrically placed about the horizontal line a30 passing through the center of the lower part 2 of the tower body, and the two gantry z1 are aligned in a direction perpendicular to the horizontal line a30. After the two gantry z1 are aligned, the support base z4 of the gantry z1 is moved forward. The two platforms z1 are fixed in rows, and then a connecting piece z4 is installed at the bottom of the two platforms z1, and a connecting plate is installed at the top of the two platforms z1, so that the two platforms z1 are connected to form a whole through the connecting piece z4 and the connecting plate, and at the same time, the two platforms z1 are aligned with the two platforms z2 in the direction of the horizontal line a30, and after the alignment, the connecting piece z3 and the connecting plate are installed at the bottom and top of the platforms z1 and z2 on the same side, respectively, so that the two platforms z1 and z2 are connected to form a whole through the connecting piece z3 and the connecting plate, thereby improving stability. The connecting piece serves as a springboard.

[0038] S3 welds the fixing part 9 on the outer side surface 31 of the upper part 8 of the tower body above the cutting area 33 through the stand 1 z1 and the stand 2 z2. In the present embodiment, the fixing part 9 is welded to the outer side surface 31 of the upper part 8 of the tower body in sequence around the upper part 8 of the tower body, and then the fixing parts 9 are welded to each other so that the fixing part 9 on the outer side surface 31 of the upper part 8 of the tower body is integrally fixed to the outer side surface 31 of the upper part 8 of the tower body. Before the carbon planer cutting, the crane is controlled to make the steel wire rope for hoisting the tower body in a taut state, and then the round carbon rod and the flat carbon rod are used to respectively surround the tower body clockwise in the cutting area 33 on the outer side surface of the tower body for carbon planer cutting. The wind pressure range of the round carbon rod and the flat carbon rod is 0.4-0.6MPa, and the current range is 400-450A. The fixing part 9 is a channel steel.

[0039] After S4 cutting is completed, the tower body is split into the upper tower body 8 and the lower tower body 2, and then the connecting parts z3 and the connecting plates between the two racks z1, between the two racks z2, and between the racks z1 and z2 are removed, and the racks z1 and z2 are removed in turn. Then, the upper tower body 8 is moved to the storage station. If the carbon planer cutting end of the upper tower body 8 after the split is not damaged, a groove 10 is opened at the carbon planer cutting end of the upper tower body 8; if the carbon planer cutting end of the upper tower body 8 after the split is damaged and the groove 10 cannot be opened at the carbon planer cutting end, a groove 10 is opened on the outer side surface 31 of the upper tower body 8 at a distance from the carbon planer cutting end. A marking line 5 15 is horizontally set within a range of 400-600 mm of the planing cutting surface 81, and carbon planing cutting is performed at the marking line 5 15. After cutting, a groove 10 is opened outward at the carbon planing cutting end of the upper part 8 of the tower body with the carbon planing cutting surface 81 as a reference, so that the groove slope 111 and the carbon planing cutting surface 81 are inclined, and the inclination angle between the groove slope 111 and the carbon planing cutting surface 81 is 40°-60°. In this embodiment, the inclination angle a between the groove slope 111 and the carbon planing cutting surface 81 is 45°. In this embodiment, the vertical distance between the marking line 5 15 and the carbon planing cutting surface 81 is 500 mm.

[0040] S5 removes the cut tower body lower part 2, hoists the tower body lower part to be connected to the connection station, and then hoists the tower body upper part 8 with the groove 10 opened in step S4 above the connection station, so that the tower body upper part 8 and the tower body lower part to be connected are on the same axis, and the tower body upper part 8 moves downward along the axis direction, and when the groove 10 of the tower body upper part 8 abuts against the upper end of the tower body lower part to be connected, the driving operation is stopped. After the connection, the two gantry z2 are hoisted to one side of the tower body lower part 2, and the height of the gantry z2 to the upper end of the tower body lower part to be connected is adjusted. In this embodiment, specifically, the height of the gantry z2 is equal to the height of the tower body lower part to be connected. The height of the upper end of the two gantry z2s is matched, and at the same time, the distance from the upper end of the lower part of the tower body to be connected to the two gantry z2s is matched with the distance required by the staff when working, so that the two gantry z2s are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body to be connected, and the two gantry z2s are aligned in a direction perpendicular to the horizontal line. After the two gantry z2s are aligned, the support seat z4 of the gantry z2s is fixed, and then the connecting piece z3 is installed at the bottom of the two gantry z2s, and the connecting plate is installed on the top of the two gantry z2s, so that the two gantry z2s are connected to form a whole through the connecting piece z3 and the connecting plate, and then the two gantry z2s are connected to form a whole. z1 is hoisted to the other side of the lower part of the tower body to be connected, and the height of the stand z1 to the upper end of the lower part of the tower body to be connected is adjusted. In this embodiment, the height of the stand z1 is matched with the height of the upper end of the lower part of the tower body to be connected, and the distance from the stand z1 to the upper end of the lower part of the tower body to be connected is matched with the distance required by the staff during operation, so that the two stands z1 are symmetrically placed about the horizontal line a30 passing through the center of the lower part of the tower body to be connected, and the two stands z1 are aligned in a direction perpendicular to the horizontal line. After the two stands z1 are aligned, the support base z4 of the stand z1 is fixed, and then the two stands z1 are connected. 1, and a connecting plate is installed on the top of the two scaffolds z1, so that the two scaffolds z1 are connected to form a whole through the connecting piece z3 and the connecting plate. At the same time, the two scaffolds z1 are aligned with the two scaffolds z2 in the direction of the horizontal line. After alignment, the connecting piece z3 and the connecting plate are installed on the bottom and top of the scaffolds z1 and z2 on the same side respectively, so that the two scaffolds z1 and z2 are connected to form a whole through the connecting piece z3 and the connecting plate. Finally, welding is performed at the groove 10 to form the upper part 8 of the tower body into a whole with the lower part of the tower body to be connected, and the reassembly of the tower body is completed.

[0041] The working principle of the present invention is as follows: by hoisting two pre-assembled racks 1 and two racks 2 to the four sides of the tower body, the operation is made more maneuverable, and then the tower body is disassembled, the lower part of the tower body that does not meet the assembly requirements is removed, and at the same time the upper part of the tower body is retained to be docked with the lower part of the tower body to be docked, and reassembly is achieved, so that the entire process from disassembly to reassembly of the tower body saves time and manpower, and finally the reassembled tower body meets the assembly requirements.

Claims

1. A tower body splicing method based on a docking platform, characterized in that: The following steps are involved: S1 determines the position of the sealing plate inside the tower body, then marks the position corresponding to the sealing plate on the outer side of the tower body, determines the cutting area on the outer side of the tower body, and then cuts off the sealing plate inside the tower body; S2 hoists the tower body to the splitting station and fixes it, then hoists two gantry 2 to one side of the lower part of the tower body, adjusts the height of gantry 2 to the cutting area, so that the two gantry 2 are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body, then hoists two gantry 1 to the other side of the lower part of the tower body, adjusts the height of gantry 1 to the cutting area, so that the two gantry 1 are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body, and at the same time, the two gantry 1 are respectively aligned with the two gantry 2 in the direction of the horizontal line; S3: welding fixings on the outer side of the upper part of the tower body above the cutting area through the first and second stands, and then cutting in the cutting area on the outer side of the tower body; After S4 cutting is completed, the tower body is divided into the upper part and the lower part of the tower body, and then the first and second racks are removed respectively, and then the upper part of the tower body is moved to the storage position, and a groove is opened at the cutting end of the upper part of the tower body; S5 removes the cut lower part of the tower body, hoists the lower part of the tower body to be connected to the connection station, and then hoists the upper part of the tower body with the groove opened in step S4 to the top of the connection station for connection with the lower part of the tower body to be connected. After connection, hoist the two gantry twos to one side of the lower part of the tower body, adjust the height of the gantry two to the upper end of the lower part of the tower body to be connected, and hoist the two gantry ones to the height of the upper end of the lower part of the tower body to be connected, so that the two gantry ones are symmetrically placed about the horizontal line passing through the center of the lower part of the tower body to be connected, and at the same time, the two gantry ones are respectively aligned with the two gantry twos in the direction of the horizontal line, and finally welded at the groove to make the upper part of the tower body and the lower part of the tower body to be connected form a whole, and complete the reassembly of the tower body.

2. A tower body splicing method based on a docking platform according to claim 1, characterized in that: The step S1 includes S1.1 to S1.5, S1.1 Measure the distance from the upper end face to the lower end face of the sealing plate inside the tower body, and then measure the distance from the lower end face of the sealing plate to the upper end face of the bottom plate at the bottom of the tower body; S1.2 Marking line 1 and marking line 2 are horizontally set on the outer side of the tower body, so that the distance from marking line 1 to the upper end face of the lower bottom plate of the tower body is equal to the distance from the lower end face of the cover plate to the upper end face of the lower bottom plate of the tower body, and the distance from marking line 2 to marking line 1 is equal to the distance from the upper end face of the cover plate to the lower end face; S1.3 Set the center line horizontally between the marked line 1 and the marked line 2, so that the distance from the marked line 1 to the center line is equal to the distance from the marked line 2 to the center line. Then, based on the center line, set the marked line 3 horizontally within the range of one quarter of the distance from the marked line 1 to the center line to one half of the distance from the marked line 1 to the center line, and set the marked line 4 horizontally within the range of one quarter of the distance from the marked line 2 to the center line to one half of the distance from the marked line 2 to the center line. S1.4 Determine the area between marked line 3 and marked line 4 as the cutting area; S1.5 Weld a clamping plate at the lower end of the sealing plate so that the clamping plate and the sealing plate are connected to form a whole, then determine the cutting end face on the sealing plate, and cut the sealing plate along the cutting end face so that after the sealing plate is cut, a root is formed between the cutting end face and the inner side of the tower body, and remove the clamping plate and the sealing plate after cutting.

3. A tower body splicing method based on a docking platform according to claim 1, characterized in that: The step S2 also includes: Before lifting, assemble the rack one and rack two first, and then weld the support bases at the bottom of rack one and rack two respectively; lift the two racks two to one side of the lower part of the tower body, and align the two racks two in a direction perpendicular to the horizontal line, then lift the two racks one to the other side of the lower part of the tower body, and align the two racks one in a direction perpendicular to the horizontal line, After the two racks 2 are aligned, the support base of the rack 2 is fixed, and then the connecting pieces are installed at the bottom of the two racks 2, and the connecting plates are installed at the top of the two racks 2, so that the two racks 2 are connected by the connecting pieces and the connecting plates to form a whole; After the two racks 1 are aligned, the support base of rack 1 is fixed, and then connecting pieces are installed at the bottom of the two racks 1, and connecting plates are installed at the top of the two racks 1, so that the two racks 1 are connected to form a whole through the connecting pieces and the connecting plates, and then connecting pieces and connecting plates are installed at the bottom and top of racks 1 and 2 on the same side respectively, so that the two racks 1 and 2 are connected to form a whole through the connecting pieces and the connecting plates, thereby improving stability.

4. A tower body splicing method based on a docking platform according to claim 1, characterized in that: The step S3 also includes: The fixing parts are welded to the outer side of the upper part of the tower body in sequence around the upper part of the tower body, and then the fixing parts are welded between each other so that the fixing parts on the outer side of the upper part of the tower body are fixed integrally to the outer side of the upper part of the tower body. Before carbon planer cutting, the crane is controlled to make the steel wire rope for lifting the tower body in a taut state, and then round carbon rods and flat carbon rods are used in the cutting area on the outer side of the tower body to carry out carbon planer cutting around the tower body clockwise.

5. The tower body splicing method based on a docking platform according to claim 1 is characterized in that: The step S4 also includes: Remove the connecting parts and connecting plates between the two racks 1, between the two racks 2, and between rack 1 and rack 2, and then remove rack 1 and rack 2 in turn.

6. The tower body splicing method based on a docking platform according to claim 1 is characterized in that: The step S4 also includes: Taking the carbon planer cutting surface as a reference, a groove is opened outwardly at the carbon planer cutting end of the upper part of the tower body, so that the groove slope and the carbon planer cutting surface are inclined, and the inclination angle between the groove slope and the carbon planer cutting surface is 30°~50°.

7. The tower body splicing method based on a docking platform according to claim 1 is characterized in that: The step S4 also includes: If the carbon planer cut end of the upper part of the tower body after splitting is damaged and a groove cannot be opened at the carbon planer cut end, a marking line five is horizontally set on the outer surface of the upper part of the tower body within a range of 400~600mm from the carbon planer cut surface, and carbon planer cutting is performed at the marking line five, and a groove is opened after cutting.

8. The tower body splicing method based on a docking platform according to claim 1 is characterized in that: The step S5 also includes: After the upper part of the tower body with the groove opened in step S4 is hoisted above the docking station, the upper part of the tower body and the lower part of the tower body to be spliced ​​are placed on the same axis, and the upper part of the tower body is moved downward along the axis direction. When the groove of the upper part of the tower body abuts against the upper end of the lower part of the tower body to be docked, the crane operation is stopped.

9. The tower body splicing method based on a docking platform according to claim 1, characterized in that: The step S5 also includes: After the two racks 2 are aligned, the support base of the rack 2 is fixed, and then the connecting pieces are installed at the bottom of the two racks 2, and the connecting plates are installed at the top of the two racks 2, so that the two racks 2 are connected by the connecting pieces and the connecting plates to form a whole; Hoist two gantry 2 to one side of the lower part of the tower to be docked, so that the two gantry 2 are placed symmetrically about the horizontal line passing through the center of the lower part of the tower to be docked, and the two gantry 2 are aligned in a direction perpendicular to the horizontal line, then hoist two gantry 1 to the other side of the lower part of the tower to be docked, adjust the height of gantry 1 to the upper end of the lower part of the tower to be docked, and align the two gantry 1 in a direction perpendicular to the horizontal line; After the two racks 1 are aligned, the support base of rack 1 is fixed, and then connecting pieces are installed at the bottom of the two racks 1, and connecting plates are installed at the top of the two racks 1, so that the two racks 1 are connected to form a whole through the connecting pieces and the connecting plates, and then connecting pieces and connecting plates are installed at the bottom and top of racks 1 and 2 on the same side respectively, so that the two racks 1 and 2 are connected to form a whole through the connecting pieces and the connecting plates, thereby improving stability.

10. The tower body splicing method based on a docking platform according to claim 1, characterized in that: The step S5 further comprises: Adjust the height of the second stand to the upper end of the lower part of the tower body to be connected: make the height of the second stand match the height of the upper end of the lower part of the tower body to be connected, and at the same time make the distance from the second stand to the upper end of the lower part of the tower body to be connected match the distance required by the staff during operation; Adjust the height of the stand 1 to the upper end of the lower part of the tower to be connected: make the height of the stand 1 match the height of the upper end of the lower part of the tower to be connected, and at the same time make the distance from the stand 1 to the upper end of the lower part of the tower to be connected match the distance required by the staff during operation.

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