Roll-roll shipping method for ship unloader

Abstract

The roll-on and roll-off transportation method comprises the following steps that the maximum transportation height of the ship unloader on a transport ship is determined according to the height limitation passing through a drainage basin; a front pull rod and a rear supporting rod are disassembled according to the maximum transportation height of the ship unloader, the front pull rod is disassembled into multiple sections, and a tower is put down in the direction close to the front pull rod; binding and fixing the end part, connected with the rear girder, of the rear supporting rod and the two ends of the tower; the ship unloader carries out ship loading. The roll-on and roll-off transportation method for the ship unloader has the beneficial effects that the roll-on and roll-off transportation requirement of the ship unloader in the Yangtze River basin is met, secondary installation of large piece disassembly is avoided, the installation precision of the whole machine is guaranteed, the novel roll-on and roll-off sea binding and shipping technology has good practicability and economical efficiency, the stability and safety in the transportation process are guaranteed, and the transportation cost is reduced. The damage risk caused by shaking or collision is reduced; the height of the ship unloader is reduced by disassembling the front pull rod and the rear supporting rod and putting down the tower, so that the ship unloader smoothly passes through the limited height of a drainage basin.

Description

Technical Field

[0001] The present invention relates to the technical field of transport roll-on / roll-off operation construction, and in particular to a roll-on / roll-off transport method for a ship unloader. Background Art

[0002] Ship unloaders are typically transported via roll-on / roll-off transport. The entire unit requires structural lashing, and the lashing process is crucial, ensuring it meets shipping requirements. This lashing process effectively stabilizes the unloader structure and prevents deformation of the port machinery.

[0003] Large-scale port machinery is often over 60 meters tall. Due to the height restrictions of the transport basin, most ship unloader transportation solutions involve disassembling the equipment and then assembling it on-site at the destination. This can seriously affect the accuracy of the equipment installation. With the advancement of technological innovation, it is necessary to improve the ship unloader transportation lashing process, reducing the overall height of the ship unloader while ensuring a stable lashing effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a roll-on / roll-off transportation method for a ship unloader, which meets the roll-on / roll-off transportation requirements of the ship unloader, avoids the secondary installation of large parts, and effectively ensures the installation accuracy of the entire machine.

[0005] The present invention solves the above technical problems with the following technical solutions: A roll-on / roll-off transport method for a ship unloader comprises the following steps: Determine the maximum transport height of the ship unloader on the transport vessel based on the height limit of the watershed; Dismantle the front tie rod and the rear support rod according to the maximum transport height of the ship unloader, the front tie rod is split into multiple sections, and the tower is lowered in the direction close to the front tie rod; Binding and fixing the ends of the rear support rod connected to the rear beam and the two ends of the tower; The ship unloader loads the ship.

[0006] The beneficial effects of the present invention are as follows: the roll-on / roll-off transportation method of the ship unloader meets the roll-on / roll-off transportation demand of the ship unloader in the Yangtze River Basin, avoids the secondary installation of large parts dismantling, effectively guarantees the installation accuracy of the whole machine, and the new roll-on / roll-off sea-binding shipping process has good practicality and economy, and also ensures stability and safety during transportation, reducing the risk of damage caused by shaking or collision. In terms of construction method, it is convenient for both installation and disassembly. The ship unloader no longer needs to be disassembled for secondary installation, which saves a lot of secondary installation costs economically. It can be directly rolled ashore, the sea binding is removed, and the whole machine is restored. By disassembling the front pull rod and the rear support rod and lowering the tower to lower the height of the ship unloader, it can smoothly pass the height limit of the basin, avoiding transportation obstacles or safety problems caused by excessive height.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, in the step of determining the maximum transport height of the ship unloader on the transport ship based on the height limit of the passing watershed, the height limit of the passing watershed is equal to the sum of the maximum transport height of the ship unloader, the height of the roll-on / roll-off track and the minimum freeboard height.

[0009] The beneficial effect of adopting the above-mentioned further scheme is: by accurately calculating the sum of the basin height limit, the roll-on / roll-off track height and the minimum freeboard height, the maximum transport height of the ship unloader is determined, which can ensure that the ship unloader will not be obstructed by excessive height during transportation, thereby improving the feasibility and safety of transportation, reducing the risks caused by excessive height during transportation, and realizing roll-on / roll-off transportation of ship unloaders in the Yangtze River Basin.

[0010] Furthermore, before disassembling the front pull rod and the rear support rod, a crane is required to lift the tower, and when the lifting wire rope of the crane is just tightened, the front pull rod and the rear support rod are disassembled; Before the rear support rod is disassembled, a wheelbarrow track needs to be laid along the rear beam.

[0011] The beneficial effects of adopting the above-mentioned further solution are as follows: by setting up a crane to hoist the tower and dismantling the front and rear support rods just as the crane's hoisting wire rope is tightened, the stability of the tower can be ensured during the dismantling process, thereby improving the safety of the dismantling work; before dismantling the rear support rod, a wheelbarrow track is laid along the rear beam, and a wheelbarrow is installed at the end of the rear beam to connect the rear support rod, so that the rear support rod can move smoothly along the set track during the tower lowering process. The wheelbarrow travels on the track, effectively limiting the slippage and shaking of the tower during the lowering process, thereby ensuring the smooth and accurate lowering of the tower.

[0012] Furthermore, the step of disassembling the front tie rod and the rear support rod according to the maximum transport height of the ship unloader, wherein the front tie rod is split into multiple sections, and lowering the tower toward the front tie rod includes: Determining the splitting position and the number of split sections of the front tie rod according to the maximum transport height of the ship unloader and the height of the tower; Disassembling the front pull rod and the rear support rod; After the tower is lowered to a set height, the front pull rod is fixed.

[0013] The beneficial effects of adopting the above-mentioned further scheme are: by determining the splitting position and the number of split sections of the front tie rod based on the maximum transport height of the ship unloader and the height of the tower, it can be ensured that the transportation process will not be obstructed due to excessive height, meeting the transportation needs of the Yangtze River Basin, and is also conducive to the tower being lowered and restored after being transported to its place. This method improves the flexibility and efficiency of transportation, allowing the ship unloader and its related components to pass through confined spaces more smoothly; after disassembling the front tie rod and the rear support rod, the tower can be lowered to a relatively low height, which is helpful for transportation when the site is limited or low installation is required; through precise calculation and design, accidents can be prevented during transportation, installation and use, and the safety of personnel and equipment is guaranteed.

[0014] Furthermore, when the front tie rod is split into two sections, the split end of the front tie rod connected to the tower is connected to a preset lifting lug, and the front tie rod connected to the front beam is laid flat and connected to the front beam through a bracket; When the number of sections into which the front pull rod is split is greater than two, the split end of the front pull rod connected to the tower is connected to the preset lifting lug, and the relatively longer section of the front pull rod is laid flat and connected to the front beam through the bracket.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that by splitting the front pull rod into different sections, it can flexibly adapt to various transportation conditions. When encountering a particularly low height limit for passing through the watershed, splitting the front pull rod can ensure that the equipment can pass smoothly, greatly improving the feasibility and flexibility of transportation; the split front pull rod is connected to the beam through preset lifting ears and brackets, which greatly simplifies the installation process.

[0016] Furthermore, the step of disassembling the front pull rod and the rear support rod includes: Disassemble the front tie rod according to the split position and the number of split sections; Dismantling the connection between the rear support rod and the rear beam; A wheelbarrow is installed at the end of the rear support rod connected to the rear beam, and the wheelbarrow is used to support the hinge ear at the end of the rear support rod.

[0017] The beneficial effects of adopting the above-mentioned further scheme are: pre-designing and calculating the splitting position and the number of split sections to disassemble the front pull rod, making the disassembly process more orderly and efficient; by installing a wheelbarrow at the end where the rear support rod is connected to the rear beam, the rear support rod can be effectively supported to prevent it from colliding with the upper surface of the beam and deforming during the tower lowering process, thereby protecting the integrity of the equipment; the installation of the wheelbarrow not only provides support, but also allows the rear support rod to move along the wheelbarrow track as the tower is lowered, making the operation more flexible.

[0018] Furthermore, after lowering the tower to a set height, the step of fixing the front pull rod includes: The crane lowers the tower until the end of the front tie rod connected to the tower is close to the preset lifting lug position on the front beam, and the end of the front tie rod facing away from the tower is fixedly connected to the preset lifting lug; Lowering a relatively long section of the front pull rod by another crane or a hand chain hoist, placing it on the front beam plane and then connecting it to the front beam; The rear support rod slides along the pre-laid wheelbarrow track as the tower is laid down.

[0019] The beneficial effect of adopting the above-mentioned further scheme is as follows: after the tower is lowered, the front pull rod of the ship unloader is used to support it to the position of the preset lifting lug, which just meets the required lowering height requirement. There is no need to measure the height after lowering again, and the original structure is fully utilized, and the ear plate is no longer welded; this lifting lug is the lifting lug when the beam is installed, and the setting of the lifting lug also takes into account the fixed position of the tower when it is half-lying; by arranging multiple brackets on the front beam to support the front pull rod and connecting the front pull rod to the front beam, the stability and safety of the structure are enhanced; the rear support rod slides along the pre-laid wheelbarrow track as the tower is lowered, and the setting of the wheelbarrow improves the flexibility and stability of movement.

[0020] Furthermore, in the step of tying and fixing the ends of the rear support rods connected to the rear beam and the two ends of the tower, after the tower is lowered to the set height, the wheelbarrow is tied and fixed to the closest lifting lug using a steel wire rope; When the tower is lowered to the set height, the steel wire ropes are used to tie and fix both sides of the tower, and the bottom of each side of the tower is fixed to the beam through a pair of cross-arranged steel wire ropes.

[0021] The beneficial effects of adopting the above-mentioned further solution are as follows: Using wire rope to tie and secure the wheelbarrow to the nearest lifting lug ensures that the wheelbarrow will not move due to external forces after the tower is lowered to the set height, thereby maintaining the stability of the tower during the lowering process; using wire rope to tie and secure each side of the tower significantly improves the overall stability of the tower, preventing the tower from tilting or collapsing during transportation. At the same time, the wire rope tying and securing method is simple, easy to use, and highly reliable. Through reasonable tying and securing, the safety of the tower during transportation can be ensured, avoiding accidents.

[0022] Furthermore, after the ship unloader is loaded and rolled onto the ship, the ship unloader is supported and fixed on the deck; The step of supporting and fixing the ship unloader comprises: Installing an upper joint on the front beam at a position corresponding to the center of gravity of the upper rear component of the tower; After selecting the lower joint position according to the upper joint position, the lower joint is installed on the sea side door leg; A diagonal brace is installed between the upper joint and the lower joint.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the upper joint is installed on the front beam at the center of gravity of the upper part of the tower after it is laid down, ensuring that the support point is located at the center of gravity of the upper part of the ship unloader, thereby maximizing the stability and safety of the support, and helping to maintain the balance and stability of the overall structure of the ship unloader when it is rolled into place after loading.

[0024] Furthermore, a reinforcement plate is provided at the position where the front beam is connected to the upper joint; The angle between the upper joint and the plane of the front beam is no greater than 45 degrees.

[0025] The beneficial effect of adopting the above-mentioned further scheme is: by selecting a reinforcing plate to strengthen the structure of the docking position, so that when the tower is lowered and fixed on the front beam in a semi-lying form, the center of gravity of the tower moves forward and is supported close to the front beam without deformation; the lower joint position is selected through the upper joint position, so that the optimal support angle is determined through calculation and drawing layout, thereby improving the support strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a normal position of a tower in an embodiment of the present invention; Figure 2 This is a schematic diagram of a tower in a collapsed state during transportation according to an embodiment of the present invention; Figure 3 This is a schematic diagram of tower lashing in one embodiment of the present invention; Figure 4 Schematic diagram of the installation of diagonal braces in one embodiment of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Front tie rod; 2. Rear support rod; 3. Tower; 4. Front beam; 5. Rear beam; 6. Wheelbarrow; 7. Lifting lugs; 8. Bracket; 9. Connecting plate; 10. Wire rope; 11. Crossbeam; 12. Upper joint; 13. Lower joint; 14. Diagonal brace; 31. Fixed section; 32. Lowering section. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] The present invention provides a roll-on / roll-off transportation method for ship unloaders. The roll-on / roll-off transportation of ship unloaders in the Yangtze River Basin is used as an example for explanation. The structure diagram of the tower in the normal position is as follows: Figure 1 As shown, the structure diagram of the tower in the collapsed state during transportation is as follows Figure 2 As shown, the specific steps include: S1: Determine the maximum transport height of the ship unloader on the transport vessel based on the height limit of the watershed.

[0030] S2: The front tie rod 1 and the rear support rod 2 are dismantled according to the maximum transport height of the ship unloader. The front tie rod 1 is split into multiple sections, and the tower 3 is lowered toward the front tie rod 1.

[0031] Due to the height restriction of the watershed, the ship unloader cannot be shipped as a whole and must be lowered for transportation. Conventional transportation methods involve disassembling the ship unloader into several modules for shipment, followed by secondary assembly after transport. Alternatively, during roll-on / roll-off transport, the front beam 4 of the ship unloader is often raised for roll-on / roll-off shipment due to its center of gravity. In this embodiment, the front tie rod 1 and rear support rod 2 are disassembled, and the tower 3 is lowered toward the front tie rod 1, with the beam lying flat without tilting.

[0032] S3: Bind and fix the ends of the rear support rod 2 connected to the rear beam 5 and the two ends of the tower 3.

[0033] S4: Ship unloader loading.

[0034] This roll-on / roll-off method for ship unloaders meets the roll-on / roll-off transportation needs of ship unloaders in the Yangtze River Basin, eliminating the need for disassembly and secondary installation of large components and effectively ensuring the installation accuracy of the entire unloader. The new roll-on / roll-off sea-lashing shipping process is highly practical and economical, ensuring stability and safety during transportation and reducing the risk of damage caused by shaking or collisions. The construction method is both convenient for installation and disassembly. The unloader no longer requires disassembly for secondary installation, saving significant secondary installation costs. The unloader can be directly rolled ashore, the sea lashing removed, and the entire unloader restored. By disassembling the front tie rod 1 and rear support rod 2 and lowering the tower 3, the unloader's height is lowered, allowing it to pass through the basin's height restrictions, avoiding transportation obstacles or safety issues caused by excessive height.

[0035] In step S1, the height limit for crossing the watershed is equal to the sum of the maximum transport height of the ship unloader, the height of the roll-on / roll-off track, and the minimum freeboard height. Specifically, the overall height of the ship unloader is 56 meters, the height limit of bridges in the Yangtze River basin is 50 meters, and the height of the roll-on / roll-off track is 400 mm, meaning the overall height of the ship unloader on the transport vessel is 56.4 meters. When the transport vessel is fully ballasted, the minimum freeboard height is 1.4 meters, where the minimum freeboard height refers to the height from the water surface to the ship deck. Therefore, under normal circumstances, the maximum distance from the water surface to the top of the ship unloader is 57.8 meters, which exceeds the height limit of bridges in the Yangtze River basin. The maximum transport height of the ship unloader = the height limit of bridges in the Yangtze River basin - the height of the roll-on / roll-off track - the minimum freeboard height = 48.2 meters. Therefore, the transport height of the ship unloader can be set within a range less than the maximum transport height of the ship unloader.

[0036] In this embodiment, the maximum transport height of the ship unloader is determined by accurately calculating the sum of the basin height limit, the roll-on / roll-off track height and the minimum freeboard height, which ensures that the ship unloader will not be obstructed by excessive height during transportation, thereby improving the feasibility and safety of transportation, reducing the risks caused by excessive height during transportation, and realizing roll-on / roll-off transportation of ship unloaders in the Yangtze River Basin.

[0037] In this embodiment, before disassembling the front pull rod 1 and the rear support rod 2, a crane is required to lift the tower 3, and a suitable position is selected to lift the tower 3. When the lifting wire rope of the crane is just tightened, the front pull rod 1 and the rear support rod 2 are disassembled. At the same time, before disassembling the rear support rod 2, a wheelbarrow track is required to be laid along the rear beam 5. Subsequently, a wheelbarrow 6 is installed at the end of the rear support rod 2 connected to the rear beam 5, so that when the rear support rod 2 is lowered with the tower 3, the wheelbarrow 6 travels on the set track, which can ensure that the entire tower 3 does not slip too much during the lowering process, and can avoid shaking left and right, preventing deformation.

[0038] The wheelbarrow track can be made of flat steel and welded to the rear beam 5.

[0039] By setting up a crane to hoist the tower 3 and dismantling the front pull rod 1 and rear support rod 2 just when the crane's hoisting wire rope is tightened, the stability of the tower 3 during the dismantling process can be ensured, thereby improving the safety of the dismantling work. Before the rear support rod 2 is dismantled, a wheelbarrow track is laid along the rear beam 5. A wheelbarrow 6 is installed at the end of the rear beam 5 to connect the rear support rod 2. This allows the rear support rod 2 to move smoothly along the set track during the process of being lowered with the tower 3. The wheelbarrow 6 travels on the track, effectively limiting the slippage and shaking of the tower 3 during the lowering process, thereby ensuring the smooth and accurate lowering of the tower 3.

[0040] Specifically, step S2 includes: S21: Determine the splitting position and the number of split sections of the front tie rod 1 according to the maximum transport height of the ship unloader and the height of the tower 3.

[0041] In this embodiment, after determining the maximum transport height of the ship unloader based on the height restrictions in the Yangtze River Basin, the transport height of the ship unloader can be set within a range less than the maximum transport height of the ship unloader. The tower 3 includes a fixed section 31 vertically connected to the beam and a tilting section 32. The fixed section 31 is hinged to the tilting section 32. When the tower 3 is tilted, the tilted portion is the tilting section 32 of the tower 3. Therefore, after determining the transport height of the ship unloader within the maximum transport height of the ship unloader, the height to be reached by the tilting section 32 after tilting can be determined based on the height of the fixed section 31 and the height from the beam to the ship deck, i.e., the set height at which the tower 3 is to be tilted. Based on this height, the split position and number of segments of the front tie rod 1 are determined using trigonometric functions.

[0042] Among them, when the front tie rod 1 is split into two sections, the split end of the front tie rod 1 connected to the tower 3 is connected to the preset lifting lug 7, and the front tie rod 1 connected to the front beam 4 is laid flat and connected to the front beam 4 through the bracket 8. During the transportation of the ship unloader, the front tie rod 1 is mostly split into two sections.

[0043] When the front tie rod 1 is split into more than two sections, the end of the front tie rod 1 connected to the tower 3 is connected to the preset lifting lug 7, and the remaining relatively long section of the front tie rod 1 is laid flat and connected to the front beam 4 via the bracket 8. That is, when the front tie rod 1 is split into more than two sections, the front tie rod 1 connected to the tower 3 is connected in the same manner, with the remaining front tie rod 1 gradually laid flat as a whole and connected to the front beam 4 via the bracket 8. When the height limit of the required watershed is particularly low, the front tie rod 1 can be split into three or more sections, which is not specified here.

[0044] By splitting the front tie rod 1 into different sections, it can flexibly adapt to various transportation conditions. When encountering a particularly low height limit for passing through the watershed, splitting the front tie rod 1 can ensure that the equipment can pass smoothly, greatly improving the feasibility and flexibility of transportation; the split front tie rod 1 is connected to the beam through the preset lifting lugs 7 and brackets 8, which greatly simplifies the installation process.

[0045] In this embodiment, the front tie rod 1 is designed to be 10 meters long and is split into two sections. The split positions ensure that when the tower 3 is lowered, the front tie rod 1 is securely attached to the ship unloader's lifting lugs 7. Once secured, the maximum height of the entire ship unloader is 46.5 meters. By adding the deck rails and the minimum freeboard height of the transport vessel, the maximum height from the water surface to the top of the ship unloader is 48.3 meters. This fully meets the height restrictions for bridges crossing the Yangtze River Basin. Construction personnel only need to secure the front tie rod 1 to the beam in place, eliminating the need to remeasure its height.

[0046] S22: Disassemble the front tie rod 1 and the rear support rod 2.

[0047] Specifically, step S22 includes: The front tie rod 1 is disassembled according to the splitting position and the number of split sections. In this embodiment, the front tie rod 1 is split into two sections at the splitting position. The front tie rod 1 with a relatively shorter length is hinged to the upper end of the tower 3, and this end is not disassembled; the end of the front tie rod 1 with a relatively longer length that is away from the splitting position is connected to the front beam 4, and this end is not disassembled.

[0048] Disassemble the connection between the rear support rod 2 and the rear beam 5, wherein the end of the rear support rod 2 connected to the tower 3 is not dismantled.

[0049] A wheelbarrow 6 is mounted at the end of the rear support rod 2 where it is connected to the rear beam 5, supporting the hinged lug at the end of the rear support rod 2. The wheelbarrow 6 is mounted directly on the end of the rear support rod 2 where it is hinged to the rear beam 5. The wheelbarrow 6 is a concave wheelbarrow 6 that fits into a flat steel track, allowing the rear support rod 2 to move along the wheelbarrow track as the tower 3 is lowered. The installation of the wheelbarrow structure effectively protects the rear end of the rear support rod 2, preventing the rear support rod 2 from colliding with the upper surface of the beam and causing deformation during the tower 3 lowering process.

[0050] In the above steps, the splitting position and the number of split sections are pre-designed and calculated to disassemble the front pull rod 1, making the disassembly process more orderly and efficient; by installing a wheelbarrow 6 at the end where the rear support rod 2 is connected to the rear beam 5, the rear support rod 2 can be effectively supported to prevent it from colliding with the upper surface of the beam and deforming during the lowering process of the tower 3, thereby protecting the integrity of the equipment; the installation of the wheelbarrow 6 not only provides a supporting effect, but also allows the rear support rod 2 to move along the wheelbarrow track as the tower 3 is lowered, making the operation more flexible.

[0051] S23: After the tower 3 is lowered to the set height, the front tie rod 1 is fixed.

[0052] Specifically, step S23 includes: After the front tie rod 1 is disassembled, the crane begins to slowly lower the tower 3 until the end of the front tie rod 1 connected to the tower 3 is close to the preset lifting eye 7 position of the front beam 4, and the end of the front tie rod 1 facing away from the tower 3 is fixedly connected to the preset lifting eye 7. The position of the lifting eye 7 on the front beam 4 needs to be preset. Specifically, during the early design, the lifting eyes 7 are evenly distributed on the beam according to the transport height of the ship unloader, the height of the tower 3, and the disassembly position of the front tie rod 1 to ensure that after the tower 3 is lowered, the end of the front tie rod 1 facing away from the tower 3 is connected to the preset lifting eye 7, so that the tower 3 just meets the required lowering height requirement. That is, the position of the lifting eye 7 is obtained by reverse simulation of the drawing, wherein the lifting eyes 7 are evenly distributed along the length of the beam. In this embodiment, two lifting eyes 7 are provided on each of the front beam 4 and the rear beam 5, and the lifting eyes 7 on the front beam 4 are symmetrically arranged with the lifting eyes 7 on the rear beam 5. The ends of the front tie rod 1 and the front beam 4 can be fixed by a pin clamp, and the end of the front tie rod 1 connected to the tower 3 is connected to the lifting lug 7 on the front beam 4 closest to the tower 3.

[0053] In this embodiment, after the tower 3 is laid down, it is supported to the position of the preset lifting lug 7 by the front pull rod 1 of the ship unloader, which just meets the required laying height requirement. There is no need to measure the height after laying down again, and the original structure is fully utilized without welding the ear plate. This lifting lug is the lifting lug 7 when the beam is installed. The setting of the lifting lug also takes into account the fixed position of the tower 3 when it is half-lying down.

[0054] A relatively long section of the front tie rod 1 is lowered by another crane or a hand winch. At the same time, when the front tie rod 1 is split, adjacent front tie rods 1 are connected by a connecting plate 9. After the front tie rod 1 is split, the connecting plate 9 is connected to the end of the relatively long section of the front tie rod 1. Therefore, the connecting plate 9 is lowered together with the end of the relatively long front tie rod 1, and is placed on the plane of the front beam 4 and connected to the front beam 4. The connecting plate 9 and the end of the front tie rod 1 connected to the connecting plate 9 are flattened to contact the end face of the front beam 4, and the end of the connecting plate 9 connected to the front beam 4 is welded to the front beam 4 or connected to a separately provided lifting lug through a pin shaft; in addition, a plurality of brackets 8 are vertically installed at intervals on the front beam 4, and the front tie rod 1 is supported by a plurality of brackets 8 and connected to the front beam 4.

[0055] The rear support rod 2 slides along the pre-laid wheelbarrow track as the tower 3 is lowered. When the tower 3 is lowered to a set height, the end of the rear support rod 2 provided with the wheelbarrow 6 no longer moves.

[0056] In the above steps, multiple brackets 8 are set on the front beam 4 to support the front pull rod 1, and the front pull rod 1 is connected to the front beam 4, thereby enhancing the stability and safety of the structure; the rear support rod 2 slides along the pre-laid wheelbarrow track as the tower 3 is lowered, and the setting of the wheelbarrow 6 improves the flexibility and stability of movement.

[0057] Specifically, such as Figure 3 As shown, step S3 includes: When the tower 3 is lowered to the set height, the wheelbarrow 6 is tied and fixed to the nearest lifting lug 7 by using the steel wire rope 10, wherein one end of the steel wire rope 10 is fixed to the wheelbarrow 6, and the other end of the steel wire rope 10 is fixed to the nearest lifting lug 7, making full use of the preset lifting lug 7; and the steel wire rope 10 is used to tie and fix the two sides of the tower 3 respectively, and the bottom of each side of the tower 3 is fixed to the beam 11 by a pair of cross-arranged steel wire ropes 10, wherein one end of the pair of steel wire ropes 10 is jointly fixed to one end of the fixed section 31 connecting the lowering section 32, and the pair of steel wire ropes 10 are cross-arranged and fixed to different positions of the beam 11, and the steel wire ropes 10 play a role in stabilizing the tower 3.

[0058] In the above steps, the wheelbarrow 6 is tied and fixed to the nearest lifting lug 7 using the steel wire rope 10. This ensures that the wheelbarrow 6 will not move due to external forces after the tower 3 is lowered to the set height, thereby maintaining the stability of the tower 3 during the lowering process. The use of steel wire ropes 10 to tie and fix both sides of the tower 3 can significantly improve the overall stability of the tower 3 and prevent the tower 3 from tilting or collapsing during transportation. At the same time, the tying and fixing method of the steel wire rope 10 is simple and easy to use, and has high reliability. Through reasonable tying and fixing, the safety of the tower 3 during transportation can be ensured, and accidents can be avoided.

[0059] In this embodiment, after the ship unloader is loaded onto the ship and rolled into place, it needs to be supported and fixed on the deck. Figure 4 As shown, the steps of supporting and fixing the ship unloader specifically include: An upper joint 12 is installed on the front beam 4 at the center of gravity of the upper components after the tower 3 is lowered. The center of gravity refers to the center of gravity of the upper components of the beam when the tower 3 is lowered to the set height. In this embodiment, the center of gravity is located exactly 10.5 meters from the end of the front beam 4.

[0060] After selecting the position of the lower joint 13 based on the position of the upper joint 12, the lower joint 13 is installed on the sea-side door leg. Specifically, the position of the lower joint 13 is selected based on the position of the upper joint 12 so that the optimal support angle of the beam satisfies the requirement that the angle between the upper joint 12 and the beam plane is no greater than 45 degrees. The position of the diagonal brace 14 is then determined through calculation and drawing layout. In this embodiment, the angle between the upper joint 12 and the plane of the front beam 4 is set to 45 degrees.

[0061] In this embodiment, the upper joint 12 and the lower joint 13 have the same structure, differing only in their orientation. The upper joint 12 will be used as an example for illustration. Specifically, it comprises a mounting plate and a joint. The mounting plate is mounted on the lower end surface of the front beam 4. The joint is a barrel-shaped structure, with the axis of the joint forming a 45-degree angle with the plane of the front beam 4. A plurality of ribs are disposed between the outer wall of the joint and the mounting plate.

[0062] A diagonal brace 14 is installed between the upper joint 12 and the lower joint 13. During installation, the diagonal brace 14 is welded on-site. After the upper and lower joints 12, 13 are aligned with the bolt holes reserved on the ship unloader beam, the diagonal brace 14 is aligned with the upper and lower joints 12, 13, respectively, and then welded to facilitate alignment. The diagonal brace 14 can be made of, but is not limited to, round steel pipe.

[0063] In the above steps, the upper joint 12 is installed on the front beam 4 at the center of gravity position of the upper component after the tower 3 is laid down, ensuring that the support point is located at the center of gravity of the upper component of the ship unloader, thereby maximizing the stability and safety of the support, and helping to maintain the balance and stability of the overall structure of the ship unloader when it is rolled into place after loading; the position of the lower joint 13 is selected according to the position of the upper joint 12, so that the optimal support angle is determined through calculation and drawing layout, thereby improving the support strength.

[0064] In a further solution, a reinforcing plate is provided at the location where the front beam 4 connects to the upper joint 12. In this embodiment, a reinforcing plate with a thickness of 30mm, a length of 2m, and a width of 1380mm is selected at a location 10.5 meters away from the end of the front beam 4, and a variable-section thin-thick plate is butted against the bottom plate of the front beam 4 with a width of 980mm on both sides and a thickness of 16mm. At this time, the edge of the thick plate is 220mm away from the web. This reinforcing plate is the location where it connects to the upper joint 12, and the upper joint 12 is drilled for drilling. By selecting a reinforcing plate, the structure of the butt joint is reinforced to meet the requirement that when the tower 3 is lowered and fixed on the front beam 4 in a semi-lying position, the center of gravity of the tower 3 moves forward and is supported close to the front beam 4 without deformation.

[0065] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A ship unloader roll-on / roll-off transportation method, characterized in that: The following steps are involved: Determine the maximum transport height of the ship unloader on the transport vessel according to the height limit of the watershed; The front tie rod (1) and the rear support rod (2) are disassembled according to the maximum transport height of the ship unloader, the front tie rod (1) is split into multiple sections, and the tower (3) is lowered in a direction close to the front tie rod (1); Binding and fixing the end of the rear support rod (2) connected to the rear beam (5) and the two ends of the tower (3); The ship unloader loads the ship.

2. A ship unloader roll-on / roll-off transportation method according to claim 1, characterized in that: In the step of determining the maximum transport height of the ship unloader on the transport ship according to the height limit of the passing watershed, the height limit of the passing watershed is equal to the sum of the maximum transport height of the ship unloader, the height of the roll-on / roll-off track and the minimum freeboard height.

3. A ship unloader roll-on / roll-off transportation method according to claim 1, characterized in that: Before disassembling the front pull rod (1) and the rear support rod (2), a crane is required to hoist the tower (3). When the hoisting wire rope of the crane is just tightened, the front pull rod (1) and the rear support rod (2) are disassembled; Before the rear support rod (2) is disassembled, a wheelbarrow track needs to be laid along the rear beam (5).

4. A ship unloader roll-on / roll-off transportation method according to claim 3, characterized in that: The steps of disassembling the front tie rod (1) and the rear support rod (2) according to the maximum transport height of the ship unloader, wherein the front tie rod (1) is split into multiple sections, and lowering the tower (3) in a direction close to the front tie rod (1) include: Determining the splitting position and the number of split sections of the front tie rod (1) according to the maximum transport height of the ship unloader and the height of the tower (3); Disassembling the front pull rod (1) and the rear support rod (2); After the tower (3) is laid down to a set height, the front pull rod (1) is fixed.

5. A ship unloader roll-on / roll-off transportation method according to claim 4, characterized in that: When the front tie rod (1) is split into two sections, the split end of the front tie rod (1) connected to the tower (3) is connected to a preset lifting lug (7), and the front tie rod (1) connected to the front beam (4) is laid flat and connected to the front beam (4) via a bracket (8); When the number of sections into which the front tie rod (1) is split is greater than two, the split end of the front tie rod (1) connected to the tower (3) is connected to the preset lifting lug (7), and the relatively longer section of the front tie rod (1) is laid flat and connected to the front beam (4) via the bracket (8).

6. A ship unloader roll-on / roll-off transportation method according to claim 4 or 5, characterized in that: The step of disassembling the front pull rod (1) and the rear support rod (2) comprises: Disassembling the front pull rod (1) according to the splitting position and the number of split sections; Disassembling the connection between the rear support rod (2) and the rear beam (5); A wheelbarrow (6) is installed at the end of the rear support rod (2) connected to the rear beam (5), and the wheelbarrow (6) is used to support the hinge ear at the end of the rear support rod (2).

7. A ship unloader roll-on / roll-off transportation method according to claim 5, characterized in that: After the tower (3) is laid down to a set height, the step of fixing the front pull rod (1) comprises: The crane lowers the tower (3) until the end of the front tie rod (1) connected to the tower (3) is close to the preset lifting lug (7) on the front beam (4), and the end of the front tie rod (1) facing away from the tower (3) is fixedly connected to the preset lifting lug (7); A relatively long section of the front pull rod (1) is lowered by another crane or a hand chain hoist, and is placed on the plane of the front beam (4) and connected to the front beam (4); The rear support rod (2) slides along the pre-laid wheelbarrow track as the tower (3) is laid down.

8. A ship unloader roll-on / roll-off transportation method according to claim 5, characterized in that: In the step of tying and fixing the end portion of the rear support rod (2) connected to the rear beam (5) and the two ends of the tower (3), after the tower (3) is lowered to the set height, the wheelbarrow (6) is tied and fixed to the closest lifting lug (7) using a steel wire rope (10); When the tower (3) is lowered to the set height, the steel wire ropes (10) are used to tie and fix the two sides of the tower (3) respectively, and the bottom of each side of the tower (3) is fixed to the crossbeam (11) by a pair of cross-arranged steel wire ropes (10).

9. A ship unloader roll-on / roll-off transportation method according to claim 5, characterized in that: After the ship unloader is loaded and rolled onto the ship, the ship unloader is supported and fixed on the deck; The step of supporting and fixing the ship unloader comprises: An upper joint (12) is installed on the front beam (4) at a position corresponding to the center of gravity of the upper rear component of the tower (3) after it is laid down; After selecting the position of the lower joint (13) through the position of the upper joint (12), the lower joint (13) is installed on the sea side door leg; A diagonal brace (14) is installed between the upper joint (12) and the lower joint (13).

10. A ship unloader roll-on / roll-off transportation method according to claim 9, characterized in that: A reinforcing plate is provided at the position where the front beam (4) is connected to the upper joint (12); The angle between the upper joint (12) and the plane of the front beam (4) is no greater than 45 degrees.

Images