Mounting structure of stern ramp and roll-on and roll-off platform type barge

Abstract

The invention discloses a mounting structure of a stern ramp and a roll-on and roll-off platform type barge, and relates to the technical field of ships. The mounting structure comprises a tail end wall, a transverse auxiliary bulkhead and a plurality of longitudinal enclosure bulkheads. The transverse auxiliary bulkhead and the multiple longitudinal enclosure bulkheads are arranged to be matched with the tail end wall, so that the tail end wall, the transverse auxiliary bulkhead and the internal longitudinal enclosure bulkheads form a whole, the strength of the mounting structure is improved, and in the using process, the situation of structural deformation or failure caused by insufficient strength of the mounting structure is avoided; the stability of the stern ramp is improved, the situation that the stern ramp inclines, is blocked and even falls off is avoided, and the safety of passing vehicles and operators is improved. The roll-on and roll-off platform type barge comprises the stern ramp, the hinge and the mounting structure, the stern ramp is connected with the mounting structure through the hinge, the situation that the stern ramp inclines, gets stuck and even falls off is avoided, and the safety of passing vehicles and operators is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship technology, in particular to a stern ramp mounting structure and a roll-on / roll-off platform barge. BACKGROUND

[0002] In recent years, with the development of ship and ocean engineering, the transportation of large equipment between land and water is becoming more and more common. The roll-on / roll-off platform barge has the characteristics of roll-on / roll-off ship and barge. In order to carry ultra-wide equipment and pursue greater economic benefits, the deck area of the roll-on / roll-off platform barge is larger than that of ordinary ships, and it has the characteristics of super-wide ship and super-shallow ship type, and uses ramps, ramps or lifting platforms to realize the rolling loading and unloading of cargo units between the ship and the shore. Considering that the stern ramp hinge center of the roll-on / roll-off platform barge is not consistent with the height of the water surface, the elevation of different wharfs in the port, and the influence of tidal range, the roll-on / roll-off ship has limited ability to adapt to the wharf, and the stern ramp is set at the stern of the ship body, and the stern ramp is locked after being opened to a set angle to ensure the overlap of various ships and the roll-on / roll-off platform barge.

[0003] In the prior art, the stern ramp relies on multiple hinges connected with the stern door to transfer the vehicle load and other external forces it bears, such as the self-weight of the ramp, the vehicle load, and the friction force generated by the relative movement of the ship and the wharf, etc. However, the structural strength of the stern door is limited, and during use, when the stern door deforms or fails due to insufficient strength, it may cause the stern ramp to tilt, jam or even fall off, directly threatening the safety of the passing vehicles and operators.

[0004] Therefore, there is an urgent need for a stern ramp mounting structure and a roll-on / roll-off platform barge to solve the above problems. SUMMARY

[0005] The first object of the present application is to provide a stern ramp mounting structure with high strength to improve the stability of the stern ramp, avoid the occurrence of tilting, jamming or even falling off of the stern ramp, and improve the safety of passing vehicles and operators.

[0006] The second object of the present application is to provide a roll-on / roll-off platform barge that avoids the occurrence of tilting, jamming or even falling off of the stern ramp, and improves the safety of passing vehicles and operators.

[0007] To achieve this object, the present application adopts the following technical solutions:

[0008] The application discloses a mounting structure of a stern ramp, which is used for mounting a stern ramp of a roll-on / roll-off platform barge, and is connected with the stern ramp through a hinge.

[0009] The tail end wall is provided with a first vertical rib, a first vertical beam and a first horizontal beam.

[0010] The transverse auxiliary bulkhead is provided with a second vertical rib, a second vertical beam and a second horizontal beam.

[0011] Further, the longitudinal surrounding walls are uniformly and separately arranged between the transverse auxiliary bulkhead and the tail end wall.

[0012] Further, the tail end wall has a body part and a plurality of mounting parts, the mounting parts are separately arranged on the body part, the mounting parts are used for connecting the hinge, and the thickness of the mounting part is greater than the thickness of the body part.

[0013] Further, the longitudinal surrounding walls and the mounting parts are arranged one by one.

[0014] Further, a plurality of lightening holes are separately arranged on the transverse auxiliary bulkhead.

[0015] Further, the longitudinal surrounding wall is provided with a third vertical rib and a third horizontal beam.

[0016] The application further discloses a roll-on / roll-off platform barge, which comprises a stern ramp, a hinge and a mounting structure of the stern ramp.

[0017] Further, the tail end wall is connected with a deck of the roll-on / roll-off platform barge and a bottom plate of the roll-on / roll-off platform barge, and the transverse auxiliary bulkhead is connected with the deck of the roll-on / roll-off platform barge and the bottom plate of the roll-on / roll-off platform barge.

[0018] Further, the hinge is provided with a plurality of hinges, the hinges and the longitudinal surrounding walls are arranged one by one, and the longitudinal surrounding wall and the corresponding hinge are located on two sides of the tail end wall.

[0019] Further, the deck of the roll-on / roll-off platform barge comprises a strong cross beam, a longitudinal beam and a longitudinal rib, and the strong cross beam, the longitudinal beam and the longitudinal rib are provided with a plurality of.

[0020] The beneficial effects of the present application are as follows:

[0021] The present application provides a mounting structure of a stern ramp, which is used for mounting the stern ramp of a roll-on / roll-off platform barge, and the stern ramp and the mounting structure are connected through a hinge. The mounting structure comprises a tail end wall, a transverse auxiliary bulkhead and a plurality of longitudinal bulkheads. The tail end wall and the transverse auxiliary bulkhead are arranged in parallel. The side of the tail end wall away from the transverse auxiliary bulkhead is used for connecting the hinge. The plurality of longitudinal bulkheads are connected between the transverse auxiliary bulkhead and the tail end wall. The tail end wall is provided with a first vertical rib, a first vertical beam and a first horizontal beam. The first vertical rib and the first vertical beam are both provided with a plurality of. The transverse auxiliary bulkhead is provided with a second vertical rib, a second vertical beam and a second horizontal beam. The second vertical rib and the second vertical beam are both provided with a plurality of. The tail end wall, the transverse auxiliary bulkhead and the internal longitudinal bulkheads are formed as a whole through the cooperation of the transverse auxiliary bulkhead and the plurality of longitudinal bulkheads with the tail end wall, so as to improve the strength of the mounting structure itself. The tail end wall is provided with the first vertical rib, the first vertical beam and the first horizontal beam, and the transverse auxiliary bulkhead is provided with the second vertical rib, the second vertical beam and the second horizontal beam, so as to improve the strength of the transverse auxiliary bulkhead and the tail end wall, and further improve the strength of the whole mounting structure. In the use process, the mounting structure will not be deformed or fail due to insufficient strength, so as to improve the stability of the stern ramp, avoid the inclination, jamming or even falling of the stern ramp, and improve the safety of the passing vehicles and the operating personnel. The tail end wall, the transverse auxiliary bulkhead and the plurality of longitudinal bulkheads jointly bear the torque transmitted through the hinge, so as to effectively avoid the stress concentration caused by the excessive force on the hinge, improve the stability of the hinge, and further improve the stability of the stern ramp.

[0022] The present application also provides a roll-on / roll-off platform barge, which comprises a stern ramp, a hinge and a mounting structure of the stern ramp. The stern ramp and the mounting structure are connected through the hinge, so as to avoid the inclination, jamming or even falling of the stern ramp, and improve the safety of the passing vehicles and the operating personnel. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0024] Figure 1 It is a structural schematic diagram of a roll-on / roll-off platform barge provided by the embodiments of the present application.

[0025] Figure 2is a structural schematic view of a tail end wall of a mounting structure of a transom door provided by an embodiment of the present application;

[0026] Figure 3 is a structural schematic view of a tail end wall of a mounting structure of a transom door provided by an embodiment of the present application;

[0027] Figure 4 is a structural schematic view of a transverse auxiliary bulkhead of a mounting structure of a transom door provided by an embodiment of the present application;

[0028] Figure 5 is a structural schematic view of a longitudinal surrounding bulkhead of a mounting structure of a transom door provided by an embodiment of the present application.

[0029] In the figure:

[0030] 1, tail end wall; 11, first vertical rib; 12, first vertical girder; 13, first horizontal girder; 14, body part; 15, mounting part; 2, transverse auxiliary bulkhead; 21, second vertical rib; 22, second vertical girder; 23, second horizontal girder; 24, lightening hole; 3, longitudinal surrounding bulkhead; 31, third vertical rib; 32, third horizontal girder; 100, mounting structure; 200, transom door; 300, hinge; 400, driving mechanism. DETAILED DESCRIPTION

[0031] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all the structures.

[0032] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0034] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship shown in the drawings, are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0035] The present embodiment provides a mounting structure of a stern ramp, which has high strength to improve the stability of the stern ramp, avoid the stern ramp from tilting, jamming or even falling off, and improve the safety of passing vehicles and operating personnel.

[0036] As Figures 1-4As shown, in the embodiment, the mounting structure 100 is used for mounting the stern ramp 200 of the roll-on / roll-off platform barge, the stern ramp 200 is connected with the mounting structure 100 through the hinge 300, the mounting structure 100 includes a tail end wall 1, a transverse auxiliary bulkhead 2 and a plurality of longitudinal surrounding walls 3, the tail end wall 1 is arranged parallel to the transverse auxiliary bulkhead 2, and the side of the tail end wall 1 away from the transverse auxiliary bulkhead 2 is used for connecting the hinge 300, the plurality of longitudinal surrounding walls 3 are connected between the transverse auxiliary bulkhead 2 and the tail end wall 1, the tail end wall 1 is provided with a first vertical rib 11, a first vertical beam 12 and a first horizontal beam 13, the first vertical rib 11 and the first vertical beam 12 are both provided with a plurality of, the transverse auxiliary bulkhead 2 is provided with a second vertical rib 21, a second vertical beam 22 and a second horizontal beam 23, and the second vertical rib 21 and the second vertical beam 22 are both provided with a plurality of. It can be understood that, by arranging the transverse auxiliary bulkhead 2 and the plurality of longitudinal surrounding walls 3 in cooperation with the tail end wall 1, the tail end wall 1, the transverse auxiliary bulkhead 2 and the internal longitudinal surrounding wall form an integral whole, the strength of the mounting structure 100 itself is improved, and the tail end wall 1 is provided with the first vertical rib 11, the first vertical beam 12 and the first horizontal beam 13, the transverse auxiliary bulkhead is provided with the second vertical rib 21, the second vertical beam 22 and the second horizontal beam 23, the strength of the transverse auxiliary bulkhead 2 and the tail end wall 1 itself is improved, and the strength of the whole mounting structure itself is further improved, in the use process, the structure deformation or failure of the mounting structure 100 due to insufficient strength does not occur, the stability of the stern ramp 200 is improved, the inclination, jamming or even falling off of the stern ramp 200 is avoided, and the safety of the passing vehicles and the operating personnel is improved. And the tail end wall 1, the transverse auxiliary bulkhead 2 and the plurality of longitudinal surrounding walls 3 jointly bear the torque transmitted through the hinge 300, the stress concentration caused by the excessive stress of the hinge 300 is effectively avoided, the stability of the hinge 300 is improved, and the stability of the stern ramp 200 is further improved.

[0037] Specifically, a plurality of first vertical ribs 11 are arranged between adjacent first vertical beams 12, the first vertical rib 11 and the first vertical beam 12 extend along the height direction of the tail end wall 1, and the first horizontal beam 13 extends along the length direction of the tail end wall 1. A plurality of second vertical ribs 21 are arranged between adjacent second vertical beams 22, the second vertical rib 21 and the second vertical beam 22 extend along the height direction of the transverse auxiliary bulkhead 2, and the second horizontal beam 23 extends along the length direction of the transverse auxiliary bulkhead 2. The specific number and arrangement mode of the first vertical rib 11 and the first vertical beam 12 can be determined according to actual use requirements, and the specific number and arrangement mode of the first vertical rib 11 and the first vertical beam 12 are not limited in the embodiment.

[0038] In the embodiment, the hinge 300 includes a pin shaft and three eye plates, one of which is fixed to the stern end wall 1, and the other two are located on both sides of the plate, and the three eye plates are provided with through holes, and the pin shaft is arranged in the through holes of the three eye plates to realize the connection of the stern ramp 200 and the stern end wall 1 and the rotation of the stern ramp 200 relative to the pin shaft. The hinge 300 is a structure, and the specific structure will not be described here.

[0039] It should be noted that the mounting structure 100 provided in the embodiment is mounted on the stern of the main hull of the roll-on / roll-off platform barge, which is equivalent to a part of the main hull. The transverse auxiliary bulkhead 2 is arranged along the transverse direction of the roll-on / roll-off platform barge, and the transverse direction refers to the width direction of the roll-on / roll-off platform barge. The longitudinal enclosure 3 is arranged along the longitudinal direction of the roll-on / roll-off platform barge, and the longitudinal direction refers to the length direction of the roll-on / roll-off platform barge. The stern end wall 1 is parallel to the transverse auxiliary bulkhead 2 and is located at one end of the longitudinal enclosure 3 away from the transverse auxiliary bulkhead 2, and the stern refers to one end of the roll-on / roll-off platform barge away from the head of the roll-on / roll-off platform barge in the length direction.

[0040] Further, the plurality of longitudinal enclosures 3 are uniformly arranged between the transverse auxiliary bulkhead 2 and the stern end wall 1. It can be understood that the plurality of longitudinal enclosures 3 are uniformly arranged, which facilitates to improve the uniformity of the force of the entire mounting structure 100, facilitates to more stably mount the stern ramp 200, and further reduces the probability of deformation of the mounting structure 100.

[0041] Exemplarily, as shown in Figure 3 The stern end wall 1 has a body portion 14 and a plurality of mounting portions 15, and the plurality of mounting portions 15 are arranged at intervals. The mounting portion 15 is used to connect the hinge 300, and the thickness of the mounting portion 15 is greater than that of the body portion 14. It can be understood that by arranging the mounting portion 15 with a greater thickness, the stability of the hinge 300 can be improved, and the stress concentration can be reduced.

[0042] Further, the plurality of mounting portions 15 are arranged at intervals on the top of the stern end wall 1. In the embodiment, the layout of the body portion 14 can be thickened to form the mounting portion 15. Of course, in other embodiments, the plurality of mounting portions 15 can be welded to the body portion 14 by welding.

[0043] Exemplarily, the plurality of longitudinal walls 3 are arranged in one-to-one correspondence with the plurality of mounting portions 15. Specifically, the longitudinal walls 3 are arranged in position correspondence with the corresponding mounting portions 15. It can be understood that the positions of the plurality of longitudinal walls 3 can also be arranged according to the positions of the mounting portions 15. The longitudinal walls 3 connect the tail end wall 1 and the transverse auxiliary bulkhead 2 to form a stable mounting structure 100. The longitudinal walls 3 are arranged in correspondence with the mounting portions 15, which facilitates the transmission of a larger moment generated at the positions of the mounting portions 15 to the transverse auxiliary bulkhead 2, thereby reducing the risk of deformation of the tail end wall 1. In the embodiment, the plurality of mounting portions 15 can also be uniformly and spacedly arranged on the top of the tail end wall 1.

[0044] Further, as shown in Figure 4 , the transverse auxiliary bulkhead 2 is spacedly provided with a plurality of lightening holes 24. It can be understood that the stress on the transverse auxiliary bulkhead 2 is not large. On the premise of ensuring the strength of the mounting structure 100, the plurality of lightening holes 24 arranged on the transverse auxiliary bulkhead 2 can achieve the purpose of reducing the dead weight. In the embodiment, the lightening holes 24 can be long holes.

[0045] Further, as shown in Figure 5 , the longitudinal wall 3 is provided with a third vertical rib 31 and a third horizontal beam 32, and the third vertical rib 31 is provided with a plurality of third vertical ribs 31. It can be understood that the arrangement of the third vertical rib 31 and the third horizontal beam 32 on the longitudinal wall 3 can effectively transmit the load from the stern ramp 200 and greatly improve the strength and rigidity of the mounting structure 100.

[0046] The embodiment also provides a roll-on platform type barge, which avoids the inclination, jamming or even shedding of the stern ramp 200, thereby improving the safety of the passing vehicles and the operating personnel.

[0047] In the embodiment, as shown in Figure 1 , the roll-on platform type barge comprises the stern ramp 200, the hinge 300 and the mounting structure 100, and the stern ramp 200 and the mounting structure 100 are connected through the hinge 300. By arranging the mounting structure 100, the structural deformation or failure due to insufficient strength of the mounting structure 100 is avoided, the stability of the stern ramp 200 is improved, and in the use process, the inclination, jamming or even shedding of the stern ramp 200 is avoided, thereby improving the safety of the passing vehicles and the operating personnel.

[0048] Exemplarily, the tail end wall 1 is connected to the deck of the roll-on platform barge and the bottom plate of the roll-on platform barge. It can be understood that, as a transverse vertical plane structure at the tail end of the ship, the connection of the tail end wall 1 to the deck and the bottom plate can transmit the huge pressure from the stern ramp 200 to the deck and the bottom plate, avoiding deformation of the tail end wall 1. In the embodiment, the tail end wall 1 can be connected to the deck and the bottom plate by welding or using a knee plate.

[0049] Exemplarily, the transverse auxiliary bulkhead 2 is connected to the deck of the roll-on platform barge and the bottom plate of the roll-on platform barge. It can be understood that the connection of the transverse auxiliary bulkhead 2 to the deck and the bottom plate makes the entire mounting structure 100 more stable and can support the deck. In the embodiment, the transverse auxiliary bulkhead 2 can be connected to the deck and the bottom plate by welding.

[0050] Further, a plurality of hinges 300 are provided, and the plurality of hinges 300 are provided in one-to-one correspondence with the plurality of longitudinal coaming walls 3, and the longitudinal coaming wall 3 and the corresponding hinge 300 are located on both sides of the tail end wall 1. It can be understood that, by providing corresponding hinges 300 and longitudinal coaming walls 3, the transmission of the moment at the hinge 300 is facilitated, and the large moment at the hinge 300 is transmitted to the transverse auxiliary bulkhead 2, reducing the risk of deformation of the tail end wall 1.

[0051] Further, the deck of the roll-on platform barge includes a strong beam, a longitudinal girder, and longitudinal bones, and each of the strong beam, the longitudinal girder, and the longitudinal bones is provided with a plurality of longitudinal bones. It can be understood that the deck is the main structure for bearing the load of the vehicle and bears the force from the transverse bulkhead and the longitudinal coaming wall 3, and is arranged as a longitudinal frame to facilitate the improvement of the strength. In the embodiment, the setting density of the longitudinal bones can be determined according to actual use requirements, and the spacing between the longitudinal bones can be reduced to improve the strength thereof. For example, the spacing between the longitudinal bones can be reduced to half of the spacing between the longitudinal bones in the existing deck. The strong beam, the longitudinal girder, and the longitudinal bones are all components of the longitudinal frame deck and are all prior art, and the specific connection method thereof is not limited in the embodiment.

[0052] In the embodiment, the roll-on platform barge further includes a driving mechanism connected to the middle part of the stern ramp 200, and the driving mechanism can drive the stern ramp 200 to rotate around the pin shaft of the hinge 300 to adjust the inclination angle of the stern ramp 200.

[0053] Exemplarily, the driving mechanism comprises a driving member, a rope and a fixed pulley. One end of the rope is connected to an output end of the driving member, the other end of the rope is fixed to the middle part of the stern ramp 200, and the middle part of the rope is arranged around the fixed pulley. The fixed pulley is installed on the top of the support member. The driving member is capable of driving the stern ramp 200 to rotate, so as to realize the adjustment of the inclination angle of the stern ramp 200. In the embodiment, the driving mechanism can be a servo motor. The middle part of the stern ramp 200 is provided with a fixing hole, so as to connect the rope. Of course, in other embodiments, the existing hydraulic rod can also be used to drive the stern ramp 200.

[0054] In the embodiment, the installation structure 100 is calculated by finite element. Although a larger counterforce is applied to the hinge 300, the stress and deformation can be controlled within a certain range by the installation structure 100, so as to ensure the working reliability of the roll-on / roll-off platform barge and the safety of the stern ramp 200.

[0055] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A mounting structure of a stern ramp for mounting a stern ramp (200) of a roll-on / roll-off barge, the stern ramp (200) being connected to the mounting structure through a hinge (300), characterized in that, The mounting structure comprises a tail end wall (1), a transverse auxiliary bulkhead (2), and a plurality of longitudinal surrounding walls (3), the tail end wall (1) is arranged in parallel with the transverse auxiliary bulkhead (2), and a side of the tail end wall (1) away from the transverse auxiliary bulkhead (2) is used for connecting a hinge (300), and the plurality of longitudinal surrounding walls (3) are connected between the transverse auxiliary bulkhead (2) and the tail end wall (1). The tail end wall (1) is provided with a first vertical rib (11), a first vertical beam (12), and a first horizontal beam (13), and the first vertical rib (11) and the first vertical beam (12) are each provided with a plurality of. The transverse auxiliary bulkhead (2) is provided with a second vertical rib (21), a second vertical beam (22), and a second horizontal beam (23), and the second vertical rib (21) and the second vertical beam (22) are each provided with a plurality of.

2. The mounting structure for a stern ramp according to claim 1, characterized by The plurality of longitudinal surrounding walls (3) are uniformly and spacedly arranged between the transverse auxiliary bulkhead (2) and the tail end wall (1).

3. The mounting structure for a stern ramp according to claim 1, characterized by The tail end wall (1) has a body portion (14) and a plurality of mounting portions (15), the plurality of mounting portions (15) are spacedly arranged on the body portion (14), the mounting portions (15) are used for connecting the hinge (300), and the thickness of the mounting portion (15) is greater than the thickness of the body portion (14).

4. The mounting structure for a stern ramp according to claim 3, characterized by The plurality of longitudinal surrounding walls (3) and the plurality of mounting portions (15) are arranged in one-to-one correspondence.

5. The mounting structure for a stern ramp according to any one of claims 1 to 4, characterized in that, A plurality of weight-reducing holes (24) are spacedly arranged on the transverse auxiliary bulkhead (2).

6. The mounting structure for a stern ramp according to any one of claims 1 to 4, characterized by The longitudinal surrounding wall (3) is provided with a third vertical rib (31) and a third horizontal beam (32), and the third vertical rib (31) is provided with a plurality of.

7. A roll-on / roll-off platform barge characterized by, The mounting structure of the stern ramp (200), the hinge (300), and the stern ramp of any one of claims 1-6 is connected through the hinge (300) between the stern ramp (200) and the mounting structure.

8. The roll-on / roll-off platform barge of claim 7, wherein, The tail end wall (1) is connected to the deck of the roll-on platform barge and the bottom plate of the roll-on platform barge, and the transverse auxiliary bulkhead (2) is connected to the deck of the roll-on platform barge and the bottom plate of the roll-on platform barge.

9. The roll-on / roll-off platform barge of claim 7, wherein, The hinge (300) is provided with a plurality of hinges (300) and a plurality of longitudinal surrounding walls (3) arranged in one-to-one correspondence, and the longitudinal surrounding wall (3) and the corresponding hinge (300) are located on both sides of the tail end wall (1), respectively.

10. The roll-on / roll-off platform barge of claim 7, wherein, The deck of the roll-on platform barge comprises a strong cross beam, a longitudinal beam, and a longitudinal bone, and the strong cross beam, the longitudinal beam, and the longitudinal bone are each provided with a plurality of.

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