Bracket device for roll-on-roll-off ship

Abstract

The invention relates to the technical field of bracket equipment for ships, in particular to a bracket device for a roll-on-roll-off ship. Comprising a bearing bracket, bracket cross beams arranged on the front side and the rear side of the bearing bracket, side arc-shaped brackets arranged above the bracket cross beams, bearing blocks arranged on the two transverse sides of the side arc-shaped brackets, a middle arc-shaped bracket arranged in the middle of the top face of the bearing bracket, and a linear motion execution device used for driving the side arc-shaped brackets on the bearing blocks to move up and down. Wherein the linear motion execution device performs up-and-down movement adjustment on the front and back of the cone-barrel-shaped sectioning type tower barrel, so that the tower barrel is parallel to the top surface of the bearing bracket, the bottom surface of the tower barrel is in contact and fit with each middle arc-shaped bracket on the top surface of the bearing bracket, and the structure is better in bearing and lateral supporting on the middle position of the tower barrel; the technical problems that when an existing bracket is used for supporting the front end and the rear end of a conical-barrel-shaped split type tower barrel, a ship has the sideslip falling risk during transportation on a bumpy road section, and the ship is prone to sliding front and back when suddenly stopped are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine bracket equipment, and particularly to a bracket device for a ro-ro ship. Background Art

[0002] ‌The bracket device for a ro-ro ship is a device used to fix and support a tower barrel on a ro-ro ship to ensure its stability and safety during transportation. The structure of the existing bracket device for a ro-ro ship is as shown in the attached drawings of the specification Figure 1 and the attached drawings of the specification Figure 2 . It can be seen that the existing bracket for transportation includes a load-bearing bracket 1', a bracket cross beam 2', and a side arc-shaped bracket 3'. The position of the side arc-shaped bracket 3' of the existing bracket for transportation is fixed, and it usually supports the front and rear end positions of a conical split tower barrel, resulting in a risk of side-slip and falling during the ship's transportation on bumpy roads. When the ship suddenly stops, it is easy to slide back and forth. Summary of the Invention

[0003] Therefore, in view of the above problems, the present invention provides a bracket device for a ro-ro ship, which solves the technical problems that the existing bracket supports the front and rear end positions of a conical split tower barrel, resulting in a risk of side-slip and falling during the ship's transportation on bumpy roads and easy sliding back and forth when the ship suddenly stops.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A bracket device for a ro-ro ship includes a load-bearing bracket, bracket cross beams arranged on the front and rear sides of the load-bearing bracket, side arc-shaped brackets arranged above the bracket cross beams, receiving blocks arranged on the lateral sides of the side arc-shaped brackets, a middle arc-shaped bracket arranged in the middle of the top surface of the load-bearing bracket, and a linear motion execution device for driving the upper side arc-shaped brackets of the receiving blocks to move up and down. The linear motion execution device is a driving cylinder arranged on the front and rear sides of the load-bearing bracket and connected to the receiving blocks.

[0005] Further, limiting blocks are arranged at the front and rear sides and extending from the top of the side arc-shaped brackets.

[0006] Further, a fastener is arranged between the middle arc-shaped bracket and the top surface of the load-bearing bracket.

[0007] Further, a first through hole for the fastener to pass through is arranged on the middle arc-shaped bracket. The fastener includes an anti-seismic bolt and an anti-seismic nut. The anti-seismic nut includes an outer screwing block screwed on the bottom of the anti-seismic bolt, an inner adjustment groove arranged inside the outer screwing block, an inner screwing block cooperating with the inner adjustment groove inside the outer screwing block, an inner thread groove arranged in the middle of the inner screwing block and screwed with the anti-seismic bolt, a plurality of clamping grooves arranged on the outer side of the inner screwing block, a clamping block rotatably arranged on one side of the outer screwing block and clamped into the clamping grooves, and an elastic piece arranged on the outer side of the outer screwing block and in contact with the clamping block. A second through hole coaxially arranged with the first through hole is arranged on the top surface of the load-bearing bracket.

[0008] Furthermore, a polygonal convex portion is provided on the side of the outer screwing block away from the inner screwing block.

[0009] Furthermore, an adjusting mechanism for driving the middle arc-shaped brackets to move to clamp the conical barrel-shaped split tower is provided on the top surface of the load-bearing bracket. The adjusting mechanism includes a support block provided at the bottom of the load-bearing bracket, a first guide rod and a second guide rod provided between the support blocks, a plurality of adjusting blocks slidably provided outside the first guide rod and the second guide rod, a first lead screw provided between the support blocks, a threaded block provided in the adjusting block and screwed with the first lead screw, a driving rod rotatably provided on each adjusting block, a first motor for driving the first lead screw to rotate, and a centering mechanism provided on the top of each adjusting block for driving the middle arc-shaped bracket to move towards the middle. The head and tail ends of adjacent driving rods are connected to each other, and a connecting rod hinged to the support block is provided on the driving rod close to the support block side.

[0010] By adopting the foregoing technical solutions, the beneficial effects of the present invention are as follows: For this roll-on / roll-off ship bracket device, the linear motion execution device is used to adjust the up and down movement of the conical barrel-shaped split tower before and after, so that the bottom surface of the split tower is parallel to the top surface of the load-bearing bracket. Then, the positions of the middle arc-shaped brackets are adjusted, and the bottom surface of the conical barrel-shaped split tower will contact and fit with the middle arc-shaped brackets on the top surface of the load-bearing bracket. This structure supports the middle position of the conical barrel-shaped split tower, and the force is not concentrated at the head and tail ends of the conical barrel-shaped split tower. During long-distance transportation, the conical barrel-shaped split tower will not be deformed due to the concentrated support points at the head and tail ends resulting in unstable force. At the same time, since multiple middle arc-shaped brackets contact the middle position of the arc-shaped brackets, compared with the original contact only at the head and tail ends, this structure has better support for the conical barrel-shaped split tower during the transportation of the ship. Multiple middle arc-shaped brackets contact the bottom surface of the conical barrel-shaped split tower, providing better lateral support for the conical barrel-shaped split tower, and the conical barrel-shaped split tower is less likely to slide back and forth. While providing protection for the transportation of the conical barrel-shaped split tower, it also improves the transportation safety of the ship, and solves the technical problems that the existing brackets support the front and rear end positions of the conical barrel-shaped split tower, resulting in the risk of side-slip and falling during the transportation of the ship on bumpy roads, and it is easy to slide back and forth when the ship suddenly stops. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the existing bracket device.

[0012] Figure 2 It is a front view schematic structural diagram of the existing bracket device.

[0013] Figure 3 It is a left view schematic structural diagram of the present invention.

[0014] Figure 4 It is a front view schematic structural diagram of the present invention.

[0015] Figure 5 yes Figure 4 A in the figure is an enlarged structural diagram.

[0016] Figure 6 It is a structural schematic diagram of the bracket crossbeam and the middle arc bracket of the present invention in use state.

[0017] Figure 7 yes Figure 6 The enlarged structural diagram at B in FIG.

[0018] Figure 8 It is a schematic diagram of the local cross-sectional structure of the fastener of the present invention.

[0019] Figure 9 It is a schematic top view of the structure of the regulating mechanism of the present invention in a use state.

[0020] Figure 10 It is a schematic top view of the local structure of the adjustment mechanism of the present invention.

[0021] Figure 11 It is a bottom view schematic diagram of the local structure of the adjustment mechanism of the present invention.

[0022] Figure 12 It is a schematic diagram of the local structure of the regulating mechanism of the present invention.

[0023] Figure 13 It is a schematic diagram of the centering mechanism structure of the present invention.

[0024] Figure 14 It is a left view schematic diagram of the local structure of the centering mechanism of the present invention.

[0025] Figure 15 It is a schematic diagram of the local structure of the centering mechanism of the present invention.

[0026] Figure 16 It is a schematic diagram of the guide block structure of the present invention.

[0027] Figure 1 and Figure 2 Winning bid number: 1', load-bearing bracket; 2', bracket crossbeam; 3', side arc bracket.

[0028] Figures 3 - 16 Winning bid number: 1. Load-bearing bracket; 2. Longitudinal support frame; 3. Bracket crossbeam; 4. Side arc bracket; 5. Acceptor block; 6. Middle arc bracket; 7. Linear motion actuator; 8. Fastener; 9. Adjustment mechanism; 401. Limit block; 601. First through hole; 101. Second through hole; 81. Anti-seismic bolt; 82. Anti-seismic nut; 801. Outer screwing block; 802. Inner adjustment groove; 803. Inner screwing block; 804. Inner thread groove; 805. Card slot; 806. Card block; 807. Elastic sheet; 808. Polygonal convex part; 901. Support block; 902. First guide rod; 903. Second guide rod; 904. Adjustment block; 905. First lead screw; 906. Threaded block; 907. Driving rod; 908. First motor; 909. Connecting rod; 910. Support platform; 911. Transverse moving block; 912. Second lead screw; 913. Slide block; 914. Groove; 915. Insertion plate; 916. Fixed shaft; 917. Guide block; 918. V-shaped groove; 919. Spring; 920. Driven gear; 921. Worm gear sleeve; 922. Worm gear; 923. Driving gear shaft; 924. Second motor; 925. Lower groove; 926. Inclined sheet. Detailed implementation mode

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation modes.

[0030] Refer to Figures 3 to 16 , this embodiment provides a roll-on / roll-off ship bracket device, including a load-bearing bracket 1, a longitudinal support frame 2 arranged inside the load-bearing bracket 1, bracket crossbeams 3 arranged on the front and rear sides of the load-bearing bracket 1, side arc brackets 4 arranged above the bracket crossbeams 3, receiving blocks 5 arranged on the transverse sides of the side arc brackets 4, a middle arc bracket 6 arranged in the middle of the top surface of the load-bearing bracket 1, and a linear motion execution device 7 for driving the upper side arc brackets 4 of the receiving blocks 5 to move up and down. The linear motion execution device 7 is a driving cylinder arranged on the front and rear sides of the load-bearing bracket 1 and connected to the receiving blocks 5. The side arc brackets 4 are rotatably connected to the receiving blocks 5. The linear motion execution device 7 drives the receiving blocks 5 to move longitudinally, and the side arc brackets 4 connected to the receiving blocks 5 will also move longitudinally, which is beneficial to adjusting the angle of the conical split tower barrel on the side arc brackets 4.

[0031] The top of the side arc bracket 4 is extended with limit blocks 401 located on the front and rear sides to prevent the conical split tower barrel from sliding off the front and rear of the side arc bracket 4.

[0032] A fastener 8 is provided between the middle arc-shaped bracket 6 and the top surface of the load-bearing bracket 1. A first through hole 601 for the fastener 8 to pass through is provided on the middle arc-shaped bracket 6. The fastener 8 includes an anti-seismic bolt 81 and an anti-seismic nut 82. The anti-seismic nut 82 includes an external screw-in block 801 screwed onto the bottom of the anti-seismic bolt 81, an internal adjustment groove 802 provided inside the external screw-in block 801, an internal screw-in block 803 cooperating with the internal adjustment groove 802 inside the external screw-in block 801, an internal thread groove 804 provided in the middle of the internal screw-in block 803 and screwed with the anti-seismic bolt 81, a plurality of card slots 805 provided on the outer side of the internal screw-in block 803, a clamping block 806 rotatably provided on one side of the external screw-in block 801 and snapped into the card slots 805, and an elastic piece 807 provided on the outer side of the external screw-in block 801 and in contact with the clamping block 806. A second through hole 101 coaxial with the first through hole 601 is provided on the top surface of the load-bearing bracket 1.

[0033] During use, first place a plurality of middle arc-shaped brackets 6 according to the diameters at different positions of the conical split tower barrel, so that the middle arc-shaped brackets 6 always fit the bottom of the conical split tower barrel, and align the first through hole 601 on the middle arc-shaped bracket 6 with the second through hole 101 on the top surface of the load-bearing bracket 1.

[0034] Then pass the anti-seismic bolt 81 through the first through hole 601 and the second through hole 101, and then rotate the external screw-in block 801 and snap it onto the bottom of the anti-seismic bolt 81 until the external screw-in block 801 is clamped tightly to the bottom of the anti-seismic bolt 81. After completion, press the clamping block 806 to separate the clamping block 806 from the card slot 805 outside the internal screw-in block, and then rotate the internal screw-in block 803 reversely so that the internal screw-in block 803 moves in the direction opposite to the external screw-in block 801. Under the action of the internal screw-in block 803, the external screw-in block 801 moves upward and will contact the bottom surface of the external thread of the anti-seismic bolt 81, and the external screw-in block 801 contacts the top surface of the external thread of the anti-seismic bolt 81, reducing the gap between the external screw-in block 801 and the anti-seismic bolt 81. After completion, release the clamping block 806. Under the action of the elastic piece 807, the clamping block 806 will snap into the card slot 805 of the internal screw-in block 803, reducing the gap between the anti-seismic nut 82 and the anti-seismic bolt 81, and keeping the internal screw-in block 803 and the external screw-in block 801 in close cooperation with the anti-seismic bolt 81, preventing the problem that the anti-seismic bolt 81 loosens due to vibration during the transportation of the load-bearing bracket 1.

[0035] A polygonal protrusion 808 is provided on one side of the external screw-in block 801 away from the internal screw-in block 803. Preferably, the shape of the external screw-in block 801 is a hexagon or a quadrilateral, which can facilitate the external wrench to be inserted into the polygonal protrusion 808 to tighten the anti-seismic nut 82.

[0036] On the top surface of the load-bearing bracket 1, there is an adjusting mechanism 9 for driving the movement of each middle arc-shaped bracket 6 to clamp the conical split-type tower barrel. The adjusting mechanism 9 includes a support block 901 provided at the bottom of the load-bearing bracket 1, a first guide rod 902 and a second guide rod 903 provided between the support blocks 901, a plurality of adjusting blocks 904 slidably arranged outside the first guide rod 902 and the second guide rod 903, a first lead screw 905 provided between the support blocks 901, a threaded block 906 provided in the adjusting block 904 and screwed with the first lead screw 905, a driving rod 907 rotatably arranged on each adjusting block 904, a first motor 908 for driving the rotation of the first lead screw 905, and a centering mechanism provided on the top of each adjusting block 904 for driving the middle arc-shaped bracket 6 to move towards the middle. The head and tail ends of adjacent driving rods 907 are connected to each other, and a connecting rod 909 hinged to the support block 901 is provided on the driving rod 907 on the side close to the support block 901.

[0037] Before use, the linear motion actuator 7 is used to adjust the up and down movement of the conical split-type tower barrel back and forth, so that the bottom surface of the split-type tower barrel is parallel to the top surface of the load-bearing bracket 1. Then, the positions of each middle arc-shaped bracket 6 are adjusted. Among them, the first motor 908 drives the first lead screw 905 to rotate, the first lead screw 905 drives one of the adjusting blocks 904 to move horizontally, each adjusting block 904 moves horizontally through the first guide rod 902 and the second guide rod 903. After the adjusting block 904 located at the end of the first lead screw 905 moves horizontally, through the cooperation of each driving rod 907 and the connecting rod 909, it will drive each adjusting block 904 to move simultaneously. The distance between each adjusting block 904 is enlarged and kept the same. After completion, the centering mechanism drives the middle arc-shaped bracket 6 to be adjusted according to the diameter size of the conical split-type tower barrel. After completion, the linear motion actuator 7 lowers the conical split-type tower barrel, and the bottom surface of the conical split-type tower barrel will contact and fit with each middle arc-shaped bracket 6 on the top surface of the load-bearing bracket 1, which can realize the rapid adjustment of the distance between the middle arc-shaped brackets 6 at the bottom of the conical split-type tower barrel.

[0038] The adjusting mechanism 9 is conducive to quickly positioning the middle arc-shaped brackets 6 at different positions of the conical split-type tower barrel. Compared with the original brackets, this structure supports the middle position of the conical split-type tower barrel, and the force is not concentrated at the head and tail ends of the conical split-type tower barrel. When the ship is transporting over a long distance, the conical split-type tower barrel will not be deformed due to the concentrated support points at the head and tail ends, resulting in uneven stress on the conical split-type tower barrel. At the same time, because a plurality of middle arc-shaped brackets 6 contact the middle position of the conical split-type tower barrel, compared with only contacting at the head and tail ends originally, this structure has better support for the conical split-type tower barrel during the transportation of the ship, and is less likely to slide and fall on the bumpy road section. When the ship suddenly stops, it is not easy to slide forward either, providing protection for the transportation of the conical split-type tower barrel and improving the transportation safety at the same time.

[0039] The centering mechanism includes a support platform 910 provided at the top of the adjustment block 904, a lateral movement block 911 slidably provided on the lateral sides of the support platform 910, a second lead screw 912 rotatably provided in the middle of the support platform 910, a slider 913 rotatably provided in the lateral movement block 911 and threadedly engaged with the outer side of the second lead screw 912, a groove 914 provided at the top of the slider 913, an insertion plate 915 slidably provided on the top of the lateral movement block 911 and insertable into the groove 914, a fixed shaft 916 fixedly provided in the middle of the insertion plate 915, a guiding block 917 laterally slidable in the middle of the lateral movement block 911, a V-shaped groove 918 provided in the middle of the guiding block 917 and cooperating with the fixed shaft 916, and a spring 919 provided on the top of the lateral movement block 911. The thread directions on the lateral sides of the second lead screw 912 are opposite. The bottom of the middle arc-shaped bracket 6 is connected to the lateral movement block 911. One lateral side of the guiding block 917 extends through the support surface of the middle arc-shaped bracket 6. A power mechanism for driving the rotation of the second lead screw 912 is provided in the middle of the second lead screw 912.

[0040] The power mechanism includes: a driven gear 920 provided in the middle of the second lead screw 912. The adjustment mechanism 9 further includes a worm sleeve 921 provided on the side of the adjustment block 904 away from the first guide rod 902, a worm gear 922 provided on the top of the adjustment block 904 and screwed with the worm sleeve 921, and a driving gear shaft 923 fixedly provided on one side of the worm. The outer side of the second guide rod 903 passes through the worm sleeve 921 and the rotation of the second guide rod 903 drives the rotation of the worm sleeve 921. The driving gear shaft 923 cooperates with the driven gear 920. A second motor 924 for driving the rotation of the second guide rod 903 is provided on one side of the second guide rod 903. A lower groove 925 is provided on the side of the V-shaped groove 918 close to the driven gear 920. An inclined piece 926 is inserted into the V-shaped groove 918 at the lower groove 925.

[0041] When it is necessary to adjust the position of the middle arc-shaped bracket 6, the second motor 924 drives the second guide rod 903 to rotate. During the rotation of the second guide rod 903, the worm gear sleeve 921 and the worm wheel 922 can synchronously drive the rotation of the driving gear shaft 923. The rotation of each driving gear shaft 923 drives the rotation of the driven gear 920, and the driven gear 920 drives the rotation of the second lead screw 912. The second lead screw 912 will drive the transverse movement block 911 to move towards the position of the conical split-type tower barrel. The middle arc-shaped bracket 6 moves to fit the outer side of the conical split-type tower barrel. The guide block 917 in the middle arc-shaped bracket 6 is blocked by the conical split-type tower barrel and will move in the opposite direction. The guide block 917 is matched with the V-shaped groove 918 and the fixed shaft 916. The fixed shaft 916 moves to the upper right side of the V-shaped groove 918 and drives the insertion plate 915 to move upward. At this time, the insertion plate 915 is separated from the slider 913, and the slider 913 will stop moving and rotate in place under the action of the second lead screw 912. At this time, each middle arc-shaped bracket 6 will fit the outer side of the conical split-type tower barrel. After completion, the second motor 924 stops rotating. After the second lead screw 912 stops rotating, under the action of the spring 919, the fixed shaft 916 will pass through the inclined piece 926 and be stuck in the lower groove 925 position. Each slider 913 and the middle arc-shaped bracket 6 are fixed to the conical split-type tower barrel, and the positions of multiple sliders 913 and the middle arc-shaped bracket 6 can be quickly adjusted. When it is necessary to reset the positions of each slider 913 and the middle arc-shaped bracket 6, the second motor 924 rotates reversely, and the slider 913 moves to the support platform 910 position. The guide block 917 contacts the support platform 910, and the movement of the guide block 917 drives the insertion plate 915 to move upward. Each slider 913 will move to the support platform 910 position one by one to maintain the same position, which is convenient for next use. It is also possible to add multiple motors on one side of the second lead screw 912. Since the adjustment mechanism 9 is in a moving state, it is difficult to drive by a synchronous mechanism, and the manufacturing cost and control difficulty of the equipment will increase.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention as defined by the appended claims, and all of them fall within the protection scope of the present invention.

Claims

1. A bracket device for a roll-on / roll-off ship, characterized in that, It includes a load-bearing bracket (1), bracket crossbeams (3) provided on the front and rear sides of the load-bearing bracket (1), side arc-shaped brackets (4) provided above the bracket crossbeams (3), receiving blocks (5) provided on the transverse sides of the side arc-shaped brackets (4), a middle arc-shaped bracket (6) provided in the middle of the top surface of the load-bearing bracket (1), and a linear motion execution device (7) for driving the upper side arc-shaped bracket (4) of the receiving block (5) to move up and down. The linear motion execution device (7) is a driving cylinder provided on the front and rear sides of the load-bearing bracket (1) and connected to the receiving block (5).

2. The bracket device for a ro-ro ship according to claim 1, characterized in that: Limit blocks (401) located on the front and rear sides are provided at the top extension of the side arc-shaped bracket (4).

3. The bracket device for a roll-on / roll-off ship according to claim 1, characterized in that: A fastener (8) is provided between the middle arc-shaped bracket (6) and the top surface of the load-bearing bracket (1).

4. The bracket device for a ro-ro ship according to claim 3, characterized in that: A first through hole (601) for the fastener (8) to pass through is provided on the middle arc-shaped bracket (6). The fastener (8) includes an earthquake-resistant bolt (81) and an earthquake-resistant nut (82). The earthquake-resistant nut (82) includes an external screwing block (801) screwed on the bottom of the earthquake-resistant bolt (81), an internal adjustment groove (802) provided inside the external screwing block (801), an internal screwing block (803) cooperating with the internal adjustment groove (802) inside the external screwing block (801), an internal thread groove (804) provided in the middle of the internal screwing block (803) and screwed with the earthquake-resistant bolt (81), a plurality of card slots (805) provided on the outer side of the internal screwing block (803), a card block (806) rotatably provided on one side of the external screwing block (801) and snapped into the card slots (805), and an elastic piece (807) provided on the outer side of the external screwing block (801) and in contact with the card block (806). A second through hole (101) coaxially arranged with the first through hole (601) is provided on the top surface of the load-bearing bracket (1).

5. The bracket device for a roll-on / roll-off ship according to claim 4, characterized in that: A polygonal convex portion (808) is provided on the side of the external screwing block (801) away from the internal screwing block (803).

6. The bracket device for a ro-ro ship according to claim 1, characterized in that: An adjustment mechanism (9) for driving each middle arc-shaped bracket (6) to move and clamp the conical split tower barrel is provided on the top surface of the load-bearing bracket (1). The adjustment mechanism (9) includes a support block (901) provided at the bottom of the load-bearing bracket (1), a first guide rod (902) and a second guide rod (903) provided between the support blocks (901), a plurality of adjustment blocks (904) slidably provided on the outer sides of the first guide rod (902) and the second guide rod (903), a first lead screw (905) provided between the support blocks (901), a threaded block (906) provided inside the adjustment block (904) and screwed with the first lead screw (905), a driving rod (907) rotatably provided on each adjustment block (904), a first motor (908) for driving the first lead screw (905) to rotate, and a centering mechanism provided on the top of each adjustment block (904) for driving the middle arc-shaped bracket (6) to move towards the middle. The head and tail ends of adjacent driving rods (907) are connected to each other. A connecting rod (909) hinged to the support block (901) is provided on the driving rod (907) close to the side of the support block (901).

7. The bracket device for a roll-on / roll-off ship according to claim 6, characterized in that: The centering mechanism includes a support platform (910) provided at the top of the adjustment block (904), a transverse movement block (911) slidably provided on the lateral sides of the support platform (910), a second lead screw (912) rotatably provided in the middle of the support platform (910), a slider (913) rotatably provided in the transverse movement block (911) and threadedly engaged with the outer side of the second lead screw (912), a groove (914) provided at the top of the slider (913), a plug board (915) slidably provided on the top of the transverse movement block (911) and capable of being inserted into the groove (914), a fixed shaft (916) fixedly provided in the middle of the plug board (915), a guide block (917) transversely slidable in the middle of the transverse movement block (911), a V-shaped groove (918) provided in the middle of the guide block (917) and cooperating with the fixed shaft (916), and a spring (919) provided on the top of the transverse movement block (911). The thread directions on the lateral sides of the second lead screw (912) are opposite. The bottom of the middle arc-shaped bracket (6) is connected to the transverse movement block (911). One lateral side of the guide block (917) extends through the support surface of the middle arc-shaped bracket (6). A power mechanism for driving the rotation of the second lead screw (912) is provided in the middle of the second lead screw (912).

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