Preassembled supporting column of roll-on-roll-off ship

Abstract

The utility model provides a roll-on-roll-off ship preassembled strut which comprises a strut body, the strut body comprises a first enclosure bulkhead plate, a second enclosure bulkhead plate, a third enclosure bulkhead plate and a sealing plate, and the first enclosure bulkhead plate and the third enclosure bulkhead plate are perpendicularly fixed to the left side and the right side of the second enclosure bulkhead plate respectively to form a groove-shaped structure. The sealing plate is fixed between the first enclosure bulkhead plate and the third enclosure bulkhead plate, and the sealing plate and the second enclosure bulkhead plate are arranged in parallel at an interval; beveled edges with certain angles are formed in the first enclosure bulkhead plate, the third enclosure bulkhead plate, the second enclosure bulkhead plate and the sealing plate along the head and tail end parts in the length direction and extend outwards to the bottom in the thickness direction, and the beveled edges are not truncated edges; a kidney-shaped hole is formed in the center of the sealing plate in the length direction; the beveled edge slopes of the first enclosure bulkhead plate, the second enclosure bulkhead plate, the third enclosure bulkhead plate and the sealing plate all face the outer side of the main body supporting column. According to the preassembled strut and the construction and installation process thereof, the original operation environment can be planarized and opened, the safety risk is reduced, the working efficiency can be improved, the construction period can be shortened, and high economic benefits are brought to shipyards.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a pre-installed support column of a roll-on / roll-off ship. Background Art

[0002] RoRo ship is a ship with large openings on the sides and stern, mainly loaded with cargo that can roll into the cabin by itself. The most notable feature of the cabin is that it has multiple layers of mobile deck platforms and fixed deck platforms, and a large number of pillars are needed between the deck platforms for support. The main way for shipyards to build pillars at present is to use bulk sealing plates, that is, after the pillars are installed, the sealing plates are welded and fixed. This welding method requires construction workers to enter the interior of the pillars to weld the upper and lower ends of the pillars, and finally use single-sided welding technology to weld the bulk sealing plates. For specific welding nodes, please see the attached Figure 7 , Attachment Figure 8 This solution is difficult to construct, has a high risk factor and low work efficiency. Faced with this situation, the shipyard unit is urgently seeking a specific improvement plan that can complete the welding of the upper and lower ends of the pillar without requiring construction workers to enter the interior of the pillar, and at the same time the welding quality can meet the high load requirements of the pillar. Utility Model Content

[0003] In view of the above problems, the utility model provides a pre-installed pillar for a roll-on / roll-off ship, which can not only make the original working environment flat and open, reduce safety risks, but also improve work efficiency and shorten the construction period, bringing higher economic benefits to the shipyard.

[0004] In order to achieve the above purpose, the utility model mainly adopts the following technical solutions:

[0005] A pre-installed pillar for a roll-on / roll-off ship comprises a pillar body, wherein the pillar body comprises a first surrounding wall plate, a second surrounding wall plate, a third surrounding wall plate and a sealing plate, wherein the first surrounding wall plate and the third surrounding wall plate are respectively vertically fixed to the left and right sides of the second surrounding wall plate to form a groove-shaped structure, and the sealing plate is fixed between the first surrounding wall plate and the third surrounding wall plate, and is arranged parallel to the second surrounding wall plate with an interval to form a hollow rectangular pillar; the first surrounding wall plate and the third surrounding wall plate are provided with a groove with a certain angle at the head and tail ends along the length direction toward the outside of the thickness direction to the bottom, and the groove has no blunt edge; the second surrounding wall plate and the sealing plate are provided with a groove with a certain angle at the head and tail ends along the long side direction toward the outside of the thickness direction to the bottom, and the groove has no blunt edge; a waist circular hole is opened at the center of the sealing plate along the length direction; during the assembly process, the inclined surfaces of the grooves of the first surrounding wall plate, the second surrounding wall plate, the third surrounding wall plate and the sealing plate are all facing the outside of the main pillar.

[0006] Furthermore, the bevel angles of the first surrounding wall plate, the second surrounding wall plate, the third surrounding wall plate and the sealing plate are all 40°.

[0007] Furthermore, the upper and lower end faces of the first and third surrounding wall panels in the width direction are provided with portions protruding from the outside of the outer side surfaces of the second surrounding wall panel and the sealing plate; the pillar body also includes a reinforcing member, and the reinforcing member includes a plurality of right-angled triangular reinforcing members and a plurality of rectangular reinforcing members, and the plurality of right-angled triangular reinforcing members are symmetrically fixed at intervals on the left and right side edges of the outer side surfaces of the second surrounding wall panel and the sealing plate, and the two right-angled surfaces of the right-angled triangular reinforcing members are respectively fixedly connected to the second surrounding wall panel, the sealing plate, and the portions of the first and third surrounding wall panels protruding from the outside of the outer side surfaces of the second surrounding wall panel and the sealing plate, and the plurality of rectangular reinforcing members are fixed at intervals in the inner cavity of the pillar body, and are vertically fixedly connected to the first surrounding wall panel and the sealing plate.

[0008] Furthermore, the three corners of the right-angled triangle reinforcement member are chamfered 15*15 along the thickness direction, and a semi-waisted circular hole is opened on the side of the right-angled triangle reinforcement member close to the sealing plate, and the semi-waisted circular hole is arranged opposite to the long waisted circular hole on the sealing plate. The two right-angled sides of the long side of the rectangular reinforcement member close to the sealing plate are chamfered 15*15 along the thickness direction, and the two right-angled sides close to the second surrounding wall plate are opened with waisted circular chamfers along the thickness direction.

[0009] Furthermore, the first surrounding wall plate and the third surrounding wall plate have the same shape, and the second surrounding wall plate and the sealing plate have the same outer contour shape.

[0010] Furthermore, during the ship assembly process, an angular ceramic gasket is pasted at the connection between the inner upper opening of the pillar body and the upper opening top plate, and an angular ceramic gasket is pasted at the connection between the inner lower opening of the pillar body and the lower opening bottom plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model improves the bevels of the first, second and third surrounding wall plates of the pillar body into single-sided welding bevels, thereby improving the welding process of the upper and lower ends of the ro-ro ship pillar, and realizing the improvement of the sealing plate that originally needs to be bulked into the pre-installed whole pillar, making the original working environment flat and open, and reducing safety risks. At the same time, the pre-installation of the whole pillar reduces the time occupied by the tire frame during the ship construction process, improves work efficiency and shortens the construction period. It has been applied to many ships and brought higher economic benefits to the shipyard.

[0013] The utility model changes the traditional welding method of the upper and lower ends of the pillars, from the original double-sided bevel and three bulk sealing plates to a single-sided welding and whole sealing plate installation method for the first time. After the bevel is improved, the original manual welding is transformed into robot welding, which promotes intelligent welding, saves labor hours and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A three-dimensional diagram of the pre-installed pillars of the ro-ro ship according to the utility model;

[0015] Figure 2 This is a welding node diagram of the upper and lower openings of the four side plates of the pre-installed pillars of the ro-ro ship described in the utility model;

[0016] Figure 3 A top view of the pre-installed pillar of the ro-ro ship according to the utility model;

[0017] Figure 4 A bottom view of the pre-installed pillar of the ro-ro ship according to the utility model;

[0018] Figure 5 It is a side view of the pre-installed pillar of the ro-ro ship according to the utility model;

[0019] Figure 6 This is a front view of the pre-installed pillar of the ro-ro ship according to the utility model;

[0020] Figure 7 To improve the welding node diagram of the upper and lower openings of the other three wall panels except the cover plate of the front pillar;

[0021] Figure 8 To improve the welding node diagram of the upper and lower openings of the front cover plate.

[0022] Among them, 1-the first surrounding wall plate, 2-the second surrounding wall plate, 3-the third surrounding wall plate, 4-the sealing plate, 4a-the oblong hole, 5a-the lower bevel of the pillar, 5b-the upper bevel of the pillar, 6a-the rectangular reinforcement member, 6b-the right-angled triangle reinforcement member, 7-the angular ceramic liner, 8-the weld. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] like Figure 1-6As shown, a pre-installed pillar of a ro-ro ship includes a pillar body, the pillar body includes a first wall plate 1, a second wall plate 2, a third wall plate 3, a sealing plate 4 and a reinforcing member, the first wall plate 1 and the third wall plate 3 are respectively fixed vertically to the left and right sides of the second wall plate 2 to form a groove-shaped structure, the sealing plate 4 is fixed between the first wall plate 1 and the third wall plate 3, and is arranged parallel to the second wall plate 2 to form a hollow rectangular pillar; the first wall plate 1 and the third wall plate 3 are connected along the length direction The front and rear ends of the wall plate are connected along the thickness direction. A groove with a certain angle is provided outward to the bottom, and the groove has no blunt edge; the second surrounding wall panel 2 and the closing panel 4 are provided with a groove with a certain angle from the first and tail ends along the long side direction to the outside in the thickness direction, and the groove has no blunt edge; an oblong hole is opened at the center of the closing panel 4 along the length direction; during the assembly process, the inclined surfaces of the grooves of the first surrounding wall panel 1, the second surrounding wall panel 2, the third surrounding wall panel 3 and the closing panel 4 are all facing the outside of the main support; the angles of the grooves of the first surrounding wall panel 1, the second surrounding wall panel 2, the third surrounding wall panel 3 and the closing panel 4 are all 40°.

[0025] The upper and lower end faces of the first surrounding wall panel 1 and the third surrounding wall panel 3 in the width direction are both provided with parts protruding outside the outer side surfaces of the second surrounding wall panel 2 and the sealing plate 4; the reinforcing members include multiple right-angled triangle reinforcing members 6a and multiple rectangular reinforcing members 6b, and the multiple right-angled triangle reinforcing members 6a are symmetrically fixed at intervals on the left and right side edges of the outer side surfaces of the second surrounding wall panel 2 and the sealing plate 4, and the two right-angled surfaces of the right-angled triangle reinforcing members 6a are respectively fixedly connected to the second surrounding wall panel 2, the sealing plate 4 and the parts of the first surrounding wall panel 1 and the third surrounding wall panel 3 protruding outside the outer side surfaces of the second surrounding wall panel 2 and the sealing plate 4, and the multiple rectangular reinforcing members 6b are fixed at intervals in the inner cavity of the pillar body, and are vertically fixedly connected to the first surrounding wall panel 1 and the sealing plate 4.

[0026] The three corners of the right-angled triangle reinforcement member 6a are chamfered 15*15 along the thickness direction, and a semi-waisted circular hole is opened on the side of the right-angled triangle reinforcement member 6a close to the sealing plate 4, and the semi-waisted circular hole is arranged opposite to the long waisted circular hole on the sealing plate 4. The two right-angled sides of the long side of the rectangular reinforcement member 6b close to the sealing plate 4 are chamfered 15*15 along the thickness direction, and the two right-angled sides close to the second surrounding wall plate 2 are opened with waisted circular chamfers in the thickness direction.

[0027] The first surrounding wall panel 1 has the same shape as the third surrounding wall panel 3, and the second surrounding wall panel 2 has the same outer contour shape as the sealing panel 4; during the ship assembly process, an angular ceramic gasket 7 is pasted at the connection between the inner upper opening of the pillar body and the upper opening top plate, and an angular ceramic gasket 7 is pasted at the connection between the inner lower opening of the pillar body and the lower opening bottom plate.

[0028] The process for constructing and installing the pre-installed pillars of the ro-ro ship described in this embodiment specifically includes the following steps:

[0029] Step 1: Cut the first wall plate 1, the second wall plate 2, the third wall plate 3, the sealing plate 4 and the reinforcing member of the pillar body according to the drawings, and open the groove;

[0030] Step 2: First, according to the drawings, fix the first wall panel 1 and the third wall panel 3 to the left and right sides of the second wall panel 2 to form a groove-shaped structure, then fix the rectangular reinforcement member in the groove of the groove-shaped structure, and finally fix the sealing plate between the first wall panel 1 and the third wall panel 3 to form a pre-installed pillar;

[0031] Step three: After the pre-installed pillar is hoisted to the corresponding position, the angular ceramic gasket is tightly attached to the lower mouth of the seal and the bottom plate of the lower mouth through the oval hole of the sealing plate, and the welding at the lower mouth is completed by continuous clockwise bottom welding in the middle of the lower mouth of the first surrounding wall plate 1 or the third surrounding wall plate 3; through the oval hole of the sealing plate 4, the angular ceramic gasket 7 is tightly attached to the upper mouth of the seal and the top plate of the upper mouth, and the gap between the pre-installed pillar and the upper top plate forms an overhead welding condition. The installation of the pre-installed pillar can be finally completed by continuous clockwise bottom welding in the middle of the upper mouth of the first surrounding wall plate 1 or the third surrounding wall plate 3.

[0032] The construction dimension tolerances of the pillar body are all negative tolerances.

[0033] After the pillar is assembled, the place where it connects with the upper top plate is the pillar upper end, and the groove opened is the pillar upper end groove 5b. After the pillar is assembled, the place where it connects with the lower bottom plate is the pillar lower end, and the groove opened is the pillar lower end groove 5a.

[0034] Specifically, when the upper groove 5b of the pillar is welded to the upper top plate, the angular ceramic gasket 7 must be tightly attached to the inside of the pillar, and the welding gun is continuously welded clockwise from the middle of the upper opening of the first surrounding wall panel 1 or the third surrounding wall panel 3 along the upper groove 5b of the pillar to form the weld 8; when the lower groove of the pillar is welded to the lower bottom plate, the angular ceramic gasket 7 must be tightly attached to the inside of the pillar, and the welding gun is continuously welded clockwise from the middle of the lower opening of the first surrounding wall panel 1 or the third surrounding wall panel 3 along the lower groove 5a of the pillar to form the weld 8.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pre-installed support column for a ro-ro ship, characterized in that: The invention comprises a pillar body, which comprises a first surrounding wall plate, a second surrounding wall plate, a third surrounding wall plate and a sealing plate. The first surrounding wall plate and the third surrounding wall plate are respectively vertically fixed on the left and right sides of the second surrounding wall plate to form a groove-shaped structure. The sealing plate is fixed between the first surrounding wall plate and the third surrounding wall plate, and is arranged parallel to the second surrounding wall plate to form a hollow rectangular pillar. The first and third surrounding wall plates are provided with grooves with a certain angle at the head and tail ends along the length direction toward the outside of the thickness direction to the bottom, and the grooves have no blunt edges. The second surrounding wall plate and the sealing plate are provided with grooves with a certain angle at the head and tail ends along the long side direction toward the outside of the thickness direction to the bottom, and the grooves have no blunt edges. A waist circular hole is opened at the center of the sealing plate along the length direction. During the assembly process, the inclined surfaces of the grooves of the first, second, third and sealing plates are all facing the outside of the main pillar.

2. The pre-installed pillar of a ro-ro ship according to claim 1, characterized in that: The bevel angles of the first surrounding wall plate, the second surrounding wall plate, the third surrounding wall plate and the sealing plate are all 40°.

3. The pre-installed pillar of a ro-ro ship according to claim 1, characterized in that: The upper and lower end faces of the first and third surrounding wall panels in the width direction are both provided with parts protruding outside the outer side surfaces of the second surrounding wall panel and the sealing plate; the pillar body also includes a reinforcing member, and the reinforcing member includes a plurality of right-angled triangle reinforcing members and a plurality of rectangular reinforcing members, and the plurality of right-angled triangle reinforcing members are symmetrically fixed at intervals on the left and right side edges of the outer side surfaces of the second surrounding wall panel and the sealing plate, and the two right-angled surfaces of the right-angled triangle reinforcing members are respectively fixedly connected to the second surrounding wall panel, the sealing plate, and the parts of the first and third surrounding wall panels protruding outside the outer side surfaces of the second surrounding wall panel and the sealing plate, and the plurality of rectangular reinforcing members are fixed at intervals in the inner cavity of the pillar body, and are vertically fixedly connected to the first surrounding wall panel and the sealing plate.

4. The pre-installed pillar of a ro-ro ship according to claim 3, characterized in that: The three corners of the right-angled triangle reinforcement member are chamfered 15*15 along the thickness direction, and a semi-waisted circular hole is opened on the side of the right-angled triangle reinforcement member close to the sealing plate, and the semi-waisted circular hole is arranged opposite to the long waisted circular hole on the sealing plate. The two right-angled sides of the long side of the rectangular reinforcement member close to the sealing plate are chamfered 15*15 along the thickness direction, and the two right-angled sides close to the second surrounding wall plate are opened with waisted circular chamfers in the thickness direction.

5. The pre-installed pillar of a ro-ro ship according to claim 1, characterized in that: The first surrounding wall plate and the third surrounding wall plate have the same shape, and the second surrounding wall plate and the sealing plate have the same outer contour shape.

6. The pre-installed pillar of a ro-ro ship according to claim 1, characterized in that: During the ship assembly process, an angular ceramic liner is pasted at the connection between the inner upper opening of the pillar body and the upper opening top plate, and an angular ceramic liner is pasted at the connection between the inner lower opening of the pillar body and the lower opening bottom plate.

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