Fixing tool and method for floating starting and in-situ pier sitting of half ship in dock

Abstract

The invention relates to the technical field of pier sitting in a semi-dock, in particular to a fixing tool for in-situ pier sitting during floating of a semi-ship in the dock and further relates to a method for in-situ pier sitting during floating of the semi-ship in the dock, a seat pier is arranged on a platform in the dock, and a semi-ship body is arranged on the seat pier; at least one first belt cable is arranged on the half ship body; the at least two fixing frames are symmetrically arranged on the in-dock platform, positioning mechanisms used for fixing the half-ship body are arranged on the fixing frames, the half-ship body can be limited between the two fixing frames through the positioning mechanisms, and when the half-ship body floats, the half-ship body can be fixed on the fixing frames through the positioning mechanisms. The guiding device can play a guiding role when the half-ship body floats, and the half-ship body cannot move left and right. In this way, when the half-ship body sits on the pier again, the half-ship body can still be reset to fall on the original sitting pier, manual operation can be reduced, and the construction period of the half-ship body can also be shortened.

Description

Technical Field

[0001] The invention relates to the technical field of piers in a half-dock, in particular to a fixing tool for piers in place when a half-ship is floated in a dock, and also to a method for piers in place when a half-ship is floated in a dock. Background Art

[0002] The method of total station alignment is generally used for half-ship or ship docking. That is, before the half-ship or ship enters the dock, the corresponding position mark is made on the rib of the half-ship or ship. After the half-ship or ship enters the dock, it is towed to the set position, and then a total station is set up outside the dock for inspection. The half-ship or ship is adjusted and centered using a cable on the bow and stern. After it is in place, the water in the dock is pumped out, and then the half-ship or ship is completed.

[0003] Chinese patent CN112033392B discloses a ship space precise positioning system and a ship space precise positioning method, which are used for the ship to sit on a pier, and include: a first reference point M and a second reference point N, which correspond to preset positions in the dock respectively; a front target A and a rear target B, which are respectively arranged on the hull, and the front target A corresponds to the first reference point M up and down, and the rear target B corresponds to the second reference point N up and down; a total station for real-time measurement of the dynamic position coordinates of the front target A and the rear target B, which is arranged outside the dock; a control module, which is arranged in the total station, which is used to control the total station to periodically measure the dynamic position coordinates of the front target A and the rear target B, and compare the dynamic position coordinates of the front target A with the position coordinates of the first reference point M, and compare the dynamic position coordinates of the rear target B with the position coordinates of the second reference point N, to determine the position deviation of the ship, so that the ship can be accurately seated on the pier, and the measurement data has a high accuracy, which also saves manpower.

[0004] However, the half-ship also needs to be floated during construction, or the hull needs to be floated on the water surface before it can be placed on the dock. Then the water in the dock must be pumped out to complete the placement. After the half-ship or hull is floated, it cannot be placed on the dock. Just like the ship entering the dock, the placement position is uncontrollable and the deviation is large. This will cause the half-ship to need to be re-marked when it is rebuilt, and some outer plate outfitting parts may be damaged. This will take a long time to place and position, which will affect the construction period of the ship. Summary of the invention

[0005] In view of the above problems, a fixing tool and method for floating a half-ship in a dock and placing it on the original pier are provided. By setting the positioning mechanism, the half-ship body can be restricted between the two fixing frames, so that when the half-ship body is placed on the pier again, it can still be reset and landed on the original pier, thereby reducing manual operations and also reducing the construction period of the half-ship body.

[0006] In order to solve the problems of the prior art, the present invention provides a fixing tool for a pier for floating a half-ship in a dock, comprising a dock platform, a first cable and a fixing frame; a plurality of piers are arranged on the dock platform, and a half-ship body is arranged on the pier; at least one of the first cables is arranged on the half-ship body; at least two fixing frames are symmetrically arranged on the dock platform, and a positioning mechanism for fixing the half-ship body is arranged on the fixing frame.

[0007] Preferably, the positioning mechanism includes a connecting shaft and a positioning wheel; the connecting shaft has a plurality of shafts arranged on the fixed frame, and a limiting frame is arranged on the connecting shaft; the number of the positioning wheels is the same as the number of the connecting shafts, and the positioning wheel is rotatably arranged on the limiting frame, and the positioning wheel can be rotatably connected to the semi-ship body.

[0008] Preferably, a first buffer assembly is provided on the fixed frame, and the first buffer assembly includes an abutment plate, a limit plate and a first spring; the abutment plate is provided on the fixed frame, and the abutment plate is provided with a through hole for the connecting shaft to pass through; on the connecting shaft on which the limit plate can move, the limit plate can abut against the limit frame, and a plurality of rotatable limit rings are provided on the limit plate, and the limit rings are connected to the connecting shaft; the first spring is sleeved on the connecting shaft, and one end of the first spring abuts against the limit plate, and the other end abuts against the abutment plate.

[0009] Preferably, a plurality of limit assemblies are arranged on the abutment plate, and the limit assemblies include a fixed block, a movable block and a positioning block; the fixed block is arranged on the abutment plate; the movable block is arranged on the limit plate, and the movable block is slidably connected with the fixed block; the positioning block is arranged on the movable block, and the fixed block is provided with a positioning groove for the positioning block to move.

[0010] Preferably, a rotating assembly is provided on the fixed frame, and the rotating assembly includes a rotating shaft, a worm wheel and a worm; the rotating shaft is rotatably arranged on the fixed frame through a bearing seat, and the rotating shaft is plugged into the extended end of the connecting shaft, and the connecting shaft is provided with a limiting groove that cooperates with the rotating shaft; the worm is arranged on a side of the fixed frame close to the rotating shaft; the worm wheel is arranged on the rotating shaft, and the worm wheel is meshingly connected with the worm.

[0011] Preferably, a driving unit is provided on the fixed frame, and the driving unit includes a rotating motor and a second bevel gear; the rotating motor is provided on the fixed frame, and a first bevel gear is provided at the output end of the rotating motor; the second bevel gear is provided on the worm, and the second bevel gear is meshingly connected with the first bevel gear.

[0012] Preferably, a limiting mechanism is provided on the fixed frame, and the limiting mechanism includes a second belt rope, a mounting frame, a winding roller and a steel wire rope; the second belt cable is provided on the half-ship body; the mounting frame is provided on the fixed frame, and the mounting frame is respectively provided with a guide wheel and a counting wheel; the winding roller is provided on the fixed frame, and the winding roller is rotatably connected to the half-ship body; one end of the steel wire rope is provided on the second belt cable, and the other end is provided on the winding roller, and the steel wire rope is transmission-connected to the guide wheel and the counting wheel.

[0013] Preferably, a second buffer assembly is also provided on the fixed frame, and the second buffer assembly includes an abutment block, a slider, a fixed block and a second spring; the abutment block is provided on the semi-hull body; the slider is movably provided on the fixed frame, and a slide groove for movement of the slider is provided on the fixed frame, and a limit axis is also provided on the slider, and a through hole for the steel wire rope to pass through is also provided on the slider; the fixed plate is provided at the slide groove on the fixed frame; the second spring is sleeved on the limit axis, and one end of the second spring is abutted against the fixed plate, and the other end is abutted against the slider.

[0014] Preferably, a plurality of guide rollers rotatably connected to the steel wire rope are arranged in the through hole of the slider.

[0015] A method for setting up a pier on the spot when half of a ship is lifted up in a dock, and a fixing tool for setting up a pier on the spot when half of a ship is lifted up in a dock is applied to the fixing tool, comprising the following steps:

[0016] S1. Arranging a corresponding number of the piers according to the size of the half-hull;

[0017] S2, then setting the distance between the two fixing frames according to the specifications of the half-hull, and fixing the fixing frames on the platform in the dock;

[0018] S3, then moving the half-hull between the fixed frames and landing on the pier at the same time;

[0019] S4, connecting the first belt cable on the half-hull to a connection point in the dock with a cable;

[0020] S5, after the connection and fixation are completed, the half-hull is fixed again between the two fixing frames by the positioning mechanism;

[0021] S6. After the following operations are completed, the half-ship body can be floated.

[0022] Compared with the prior art, the present invention has the following beneficial effects: the present invention can limit the half-hull between the two fixing frames through the arrangement of the positioning mechanism, and can guide the half-hull when it is floating, and prevent the half-hull from shifting left and right. In this way, when the half-hull sits on the pier again, it can still be reset to the original pier, thereby reducing manual operations and also reducing the construction period of the half-hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a three-dimensional structural schematic diagram of a fixed tooling for floating half of a ship in a dock and sitting on a pier in place.

[0024] Figure 2 A partial three-dimensional cross-section of a fixed tooling for floating a half-ship in a dock and sitting on the pier in place Figure 1 .

[0025] Figure 3 This application Figure 2 A local enlarged schematic diagram of point A in the middle.

[0026] Figure 4 This application Figure 2 A local enlarged schematic diagram of point B in the middle.

[0027] Figure 5 A schematic diagram of the partial three-dimensional structure of a fixed tooling for floating a half-ship in a dock and sitting on the pier in place Figure 1 .

[0028] Figure 6 A schematic diagram of the partial three-dimensional structure of a fixed tooling for floating a half-ship in a dock and sitting on the pier in place Figure 2 .

[0029] Figure 7 A partial three-dimensional structural section of a fixed tool for floating a half-ship in a dock and sitting on the pier in place Figure 2 .

[0030] Figure 8 This application Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0031] Fig. 9 This application Figure 7 A partial enlarged schematic diagram of point D in the middle.

[0032] Fig.10 A schematic diagram of the partial three-dimensional structure of a fixed tooling for floating a half-ship in a dock and sitting on the pier in place Figure 3 .

[0033] The numbers in the figure are: 1, dock platform; 11, pier; 2, half ship body; 21, measurement module; 3, fixed frame; 31, height measurement assembly; 4, first cable; 5, positioning mechanism; 51, connecting shaft; 52, limit frame; 53, positioning wheel; 54, first buffer assembly; 541, abutment plate; 542, limit plate; 543, limit ring; 544, first spring; 55, limit assembly; 551, fixed block; 552, moving block; 553, positioning block; 554, positioning groove; 56, rotating assembly; 561, rotating shaft ; 562, limit groove; 563, worm; 564, worm wheel; 57, driving unit; 571, rotating motor; 572, first bevel gear; 573, second bevel gear; 6, limit mechanism; 61, second cable; 62, winding roller; 63, mounting frame; 64, guide wheel; 65, counting wheel; 66, wire rope; 67, second buffer assembly; 671, fixing plate; 672, limit shaft; 673, second spring; 674, slider; 6741, through hole; 6742, guide roller; 675, slide groove; 676, abutment block. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Reference Figures 1 to 10 As shown, a fixing tool for sitting on a pier in place when a half-ship is lifted up in a dock comprises an in-dock platform 1, a first cable 4 and a fixing frame 3; a plurality of sitting piers 11 are arranged on the in-dock platform 1, and a half-ship body 2 is arranged on the sitting piers 11; at least one of the first cables 4 is arranged on the half-ship body 2; at least two fixing frames 3 are symmetrically arranged on the in-dock platform 1, and a positioning mechanism 5 for fixing the half-ship body 2 is arranged on the fixing frame 3.

[0036] When it is necessary to fix the semi-hull 2 ​​on the platform 1 in the dock, the semi-hull 2 ​​is first moved between the two fixing frames 3, and the semi-hull 2 ​​is placed on the pier 11. Then, when the semi-hull 2 ​​is moved to a suitable position on the platform 1 in the dock, the first belt cable 4 is connected and fixed to the connection point on the platform 1 in the dock by using a cable, and then the semi-hull 2 ​​is fixed to the pier 11 by the positioning mechanism 5 on the fixing frame 3. Then, when it is necessary to float the semi-hull 2, a height measuring component 31 is provided on the fixing frame 3, and a measuring module 21 cooperating with the height component is provided on the semi-hull 2. In this way, the height of the semi-hull 2 ​​when floating can be more intuitively understood. By setting the positioning mechanism 5, the semi-hull 2 ​​can be restricted between the two fixing frames 3, and when the semi-hull 2 ​​is floating, it can guide the semi-hull 2 ​​when floating, and prevent the semi-hull 2 ​​from shifting left and right. In this way, when the half-hull 2 ​​sits on the pier 11 again, it can still be reset and fall on the original pier 11, thereby reducing manual operations and also reducing the construction period of the half-hull 2.

[0037] Reference Figure 3 As shown, the positioning mechanism 5 includes a connecting shaft 51 and a positioning wheel 53; the connecting shaft 51 has a plurality of them arranged on the fixing frame 3, and a limiting frame 52 is arranged on the connecting shaft 51; the number of the positioning wheels 53 is the same as the number of the connecting shaft 51, and the positioning wheel 53 is rotatably arranged on the limiting frame 52, and the positioning wheel 53 can be rotatably connected to the semi-ship body 2.

[0038] By setting the positioning wheel 53, and the positioning wheel 53 being set parallel to the horizontal plane, when the half-ship body 2 is floating, the half-ship body 2 can be guided, and the left and right displacement of the half-ship body 2 can be limited. The positioning wheel 53 is limited by the connecting shaft 51 and the limiting frame 52, so that the positioning wheel 53 can work more stably. The positioning wheel 53 can also prevent the half-ship body 2 from colliding with the fixing frame 3 during floating, thereby causing damage to the outer wall of the half-ship body 2.

[0039] Reference Figure 3 and Fig. 9As shown, a first buffer component 54 is provided on the fixed frame 3, and the first buffer component 54 includes a contact plate 541, a limit plate 542 and a first spring 544; the contact plate 541 is provided on the fixed frame 3, and the contact plate 541 is provided with a through hole for the connecting shaft 51 to pass through; the limit plate 542 is movable on the connecting shaft 51, the limit plate 542 can be abutted against the limit frame 52, a plurality of rotatable limit rings 543 are provided on the limit plate 542, and the limit rings 543 are connected to the connecting shaft 51; the first spring 544 is sleeved on the connecting shaft 51, and one end of the first spring 544 is abutted against the limit plate 542, and the other end is abutted against the abutment plate 541.

[0040] When the half-ship is floating, due to abnormal weather such as strong wind, there will be waves on the water surface or strong wind will blow the half-ship body 2, so that the half-ship will rock back and forth between the fixing frame 3 for half a day, and the half-ship body 2 will act on the movement of the positioning wheel 53, and this force will be transmitted to the limiting plate 542, and the limiting plate 542 will squeeze the first spring 544, so that the first spring 544 is compressed and deformed and has an elastic restoring force, and the compression deformation of the first spring 544 is used to resist this force, so that the half-ship body 2 can be reset, and the positioning wheel 53 and the half-ship body 2 can be protected.

[0041] Reference Figure 3 and Fig. 9 As shown, a plurality of limit assemblies 55 are arranged on the abutment plate 541, and the limit assemblies 55 include a fixed block 551, a movable block 552 and a positioning block 553; the fixed block 551 is arranged on the abutment plate 541; the movable block 552 is arranged on the limit plate 542, and the movable block 552 is slidably connected to the fixed block 551; the positioning block 553 is arranged on the movable block 552, and the fixed block 551 is provided with a positioning groove 554 for the positioning block 553 to move.

[0042] By cooperating with the fixed block 551 and the movable block 552, a limiting effect is exerted between the abutment plate 541 and the limiting plate 542, thereby preventing the limiting plate 542 from being separated from the fixed frame 3. In addition, the fixed block 551 and the movable block 552 are slidably connected, thereby not affecting the operation of the spring. Then, the positioning block 553 can only move within the positioning groove 554 of the fixed block 551, thereby preventing the movable block 552 from being separated from the fixed block 551, thereby making the abutment plate 541 and the limiting plate 542 more stable when working.

[0043] Reference Figure 7 and Figure 8 As shown, a rotating assembly 56 is arranged on the fixed frame 3, and the rotating assembly 56 includes a rotating shaft 561, a worm wheel 564 and a worm 563; the rotating shaft 561 is rotatably arranged on the fixed frame 3 through a bearing seat, and the rotating shaft 561 is plugged into the extended end of the connecting shaft 51, and a limiting groove 562 that cooperates with the rotating shaft 561 is arranged on the connecting shaft 51; the worm 563 is arranged on a side of the fixed frame 3 close to the rotating shaft 561; the worm wheel 564 is arranged on the rotating shaft 561, and the worm wheel 564 is meshed and connected with the worm 563.

[0044] By driving the worm 563 to rotate, the worm gear 564 can synchronously drive the rotating shaft 561 to rotate, and then directly drive the connecting shaft 51 to rotate, which can drive the positioning wheel 53 to rotate and make the positioning wheel 53 rotate ninety degrees. In this way, when the half-ship body 2 needs to enter the fixing frame 3, the positioning wheel 53 is adjusted to be perpendicular to the horizontal plane. This can guide the half-ship body 2 when entering the fixing frame 3, and can also reduce the friction between the half-ship body 2 and the fixing frame 3. In addition, the rotating shaft 561 can move in the limiting groove 562 of the connecting shaft 51, so as not to affect the buffering work of the spring driving the positioning wheel 53.

[0045] Reference Figure 7 and Fig.10 As shown, a driving part 57 is provided on the fixed frame 3, and the driving part 57 includes a rotating motor 571 and a second bevel gear 573; the rotating motor 571 is provided on the fixed frame 3, and a first bevel gear 572 is provided at the output end of the rotating motor 571; the second bevel gear 573 is provided on the worm 563, and the second bevel gear 573 is meshed and connected with the first bevel gear 572.

[0046] By starting the rotating motor 571, when the output end of the rotating motor 571 rotates, the first bevel gear 572 will be driven to rotate synchronously. In this way, through the setting of the second bevel gear 573, the worm 563 can be directly driven to rotate, which can reduce manual operations and improve the convenience of operation.

[0047] Reference Figure 4 and Figure 5As shown, a limiting mechanism 6 is arranged on the fixing frame 3, and the limiting mechanism 6 includes a second belt rope, a mounting frame 63, a winding roller 62 and a steel wire rope 66; the second belt cable 61 is arranged on the semi-ship body 2; the mounting frame 63 is arranged on the fixing frame 3, and the mounting frame 63 is respectively provided with a guide wheel 64 and a counting wheel 65; the winding roller 62 is arranged on the fixing frame 3, and the winding roller 62 is rotatably connected to the semi-ship body 2; one end of the steel wire rope 66 is arranged on the second belt cable 61, and the other end is arranged on the winding roller 62, and the steel wire rope 66 is transmission-connected to the guide wheel 64 and the counting wheel 65.

[0048] When the half-ship body 2 is floating, the wire rope 66 will have a certain amount of material, and will also drive the winding roller 62 to rotate, and then automatically collect the wire rope 66. In the process of winding the wire rope 66, the guide wheel 64 and the counting wheel 65 will also be driven to rotate synchronously. In this way, the guide wheel 64 can guide the wire rope 66 during its movement, and then the counting wheel 65 can calculate the moving length of the wire rope 66 when it rotates, so that the height of the half-ship body 2 when floating can be checked.

[0049] Reference Figure 6 As shown, a second buffer component 67 is also provided on the fixed frame 3, and the second buffer component 67 includes a contact block 676, a slider 674, a fixed block 551 and a second spring 673; the contact block 676 is arranged on the semi-hull 2; the slider 674 is movably arranged on the fixed frame 3, and a slide groove 675 for the slider 674 to move is arranged on the fixed frame 3, and a limit axis 672 is also arranged on the slider 674, and a through hole 6741 for the wire rope 66 to pass through is also arranged on the slider 674; the fixed plate 671 is arranged at the slide groove 675 on the fixed frame 3; the second spring 673 is sleeved on the limit axis 672, and one end of the second spring 673 is arranged to contact the fixed plate 671, and the other end is arranged to contact the slider 674.

[0050] When the half-ship body 2 is floating, it will synchronously drive the abutment block 676 to move, and when the abutment block 676 moves to a certain position, it will abut against the slider 674, and then when the abutment block 676 continues to move, it will synchronously drive the slider 674 to move in the slide groove 675 of the fixed frame 3, so that the slider 674 will squeeze the second spring 673, so that the second spring 673 is compressed and has an elastic restoring force, which can protect the half-ship body 2 and limit the half-ship body 2 to prevent the floating height from being too high, and through the limiting shaft 672, it can prevent the spring from detaching.

[0051] Reference Figure 6 As shown, a plurality of guide rollers 6742 rotatably connected to the steel wire rope 66 are disposed in the through hole 6741 of the slider 674 .

[0052] Because the steel wire rope 66 moves through the through hole 6741 of the slider 674 when moving, the setting of the guide roller 6742 can reduce the friction between the steel wire rope 66 and the slider 674, thereby protecting the slider 674 and the steel wire rope 66 and extending their service life.

[0053] A method for setting up a pier in place when half of a ship is lifted up in a dock, which is applied to a fixing tool for setting up a pier in place when half of a ship is lifted up in a dock as described in the full text, comprises the following steps:

[0054] S1, setting a corresponding number of the piers 11 according to the size of the half-hull 2;

[0055] S2, then setting the distance between the two fixing frames 3 according to the specifications of the half-hull 2, and fixing the fixing frames 3 on the platform 1 in the dock;

[0056] S3, then move the half-hull 2 ​​between the fixing frames 3 and simultaneously land on the sitting pier 11;

[0057] S4, connecting the first belt cable 4 on the half-hull 2 ​​to the connection point in the dock with a cable;

[0058] S5, after the connection and fixation are completed, the half-hull 2 ​​is fixed again between the two fixing frames 3 by the positioning mechanism 5;

[0059] S6. After the following operations are completed, the half-hull 2 ​​can be floated.

[0060] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fixed tool for floating a half-ship in a dock and setting it on the spot, characterized in that: It comprises an in-dock platform (1), a first cable (4) and a fixing frame (3); A plurality of piers (11) are arranged on the dock platform (1), and a half-hull (2) is arranged on the pier (11); At least one of the first cables (4) is arranged on the half-hull (2); The fixing frames (3) have at least two and are symmetrically arranged on the dock platform (1), and the fixing frames (3) are provided with positioning mechanisms (5) for fixing the semi-hull (2).

2. The fixing tool for floating a half-ship in a dock according to claim 1 is characterized in that: The positioning mechanism (5) comprises a connecting shaft (51) and a positioning wheel (53); The connecting shaft (51) has a plurality of parts arranged on the fixing frame (3), and a limiting frame (52) is arranged on the connecting shaft (51); The number of the positioning wheels (53) is the same as the number of the connecting shafts (51), and the positioning wheels (53) are rotatably arranged on the limiting frame (52), and the positioning wheels (53) can be rotatably connected to the semi-hull (2).

3. The fixing tool for floating a half-ship in a dock according to claim 2 is characterized in that: The fixing frame (3) is provided with a first buffer assembly (54), wherein the first buffer assembly (54) comprises an abutment plate (541), a limit plate (542) and a first spring (544); The abutment plate (541) is arranged on the fixing frame (3), and the abutment plate (541) is provided with a through hole for the connecting shaft (51) to pass through; The limiting plate (542) is movable on the connecting shaft (51), the limiting plate (542) can be arranged in contact with the limiting frame (52), a plurality of rotatable limiting rings (543) are arranged on the limiting plate (542), and the limiting rings (543) are connected to the connecting shaft (51); The first spring (544) is sleeved on the connecting shaft (51), and one end of the first spring (544) is abutted against the limiting plate (542), and the other end is abutted against the abutting plate (541).

4. The fixing tool for floating a half-ship in a dock according to claim 3 is characterized in that: A plurality of position-limiting components (55) are arranged on the abutting plate (541), and the position-limiting components (55) include a fixed block (551), a movable block (552) and a positioning block (553); The fixing block (551) is arranged on the abutting plate (541); The moving block (552) is arranged on the limiting plate (542), and the moving block (552) is slidably connected to the fixed block (551); The positioning block (553) is arranged on the moving block (552), and the fixed block (551) is provided with a positioning groove (554) for the positioning block (553) to move.

5. The fixing tool for floating a half-ship in a dock according to claim 2 is characterized in that: The fixed frame (3) is provided with a rotating assembly (56), and the rotating assembly (56) comprises a rotating shaft (561), a worm wheel (564) and a worm (563); The rotating shaft (561) is rotatably arranged on the fixing frame (3) via a bearing seat, and the rotating shaft (561) is plug-connected with the extended end of the connecting shaft (51), and a limiting groove (562) that cooperates with the rotating shaft (561) is arranged on the connecting shaft (51); The worm (563) is arranged on a side of the fixing frame (3) close to the rotating shaft (561); The worm wheel (564) is disposed on the rotating shaft (561), and the worm wheel (564) is meshingly connected with the worm (563).

6. The fixing tool for floating a half-ship in a dock according to claim 5 is characterized in that: The fixed frame (3) is provided with a driving part (57), and the driving part (57) comprises a rotating motor (571) and a second bevel gear (573); The rotating motor (571) is arranged on the fixing frame (3), and a first bevel gear (572) is arranged at the output end of the rotating motor (571); The second bevel gear (573) is disposed on the worm (563), and the second bevel gear (573) is meshingly connected with the first bevel gear (572).

7. The fixing tool for floating a half-ship in a dock according to claim 1 is characterized in that: The fixing frame (3) is provided with a limiting mechanism (6), and the limiting mechanism (6) comprises a second belt carrier, a mounting frame (63), a winding roller (62) and a steel wire rope (66); The second belt cable (61) is arranged on the half-hull (2); The mounting frame (63) is arranged on the fixing frame (3), and a guide wheel (64) and a counting wheel (65) are respectively arranged on the mounting frame (63); The winding roller (62) is arranged on the fixing frame (3), and the winding roller (62) is rotatably connected to the half-hull (2); One end of the steel wire rope (66) is arranged on the second belt cable (61), and the other end is arranged on the winding roller (62), and the steel wire rope (66) is transmission-connected with the guide wheel (64) and the counting wheel (65).

8. The fixing tool for floating a half-ship in a dock according to claim 7 is characterized in that: The fixing frame (3) is also provided with a second buffer assembly (67), and the second buffer assembly (67) comprises an abutment block (676), a sliding block (674), a fixing block (551) and a second spring (673); The abutment block (676) is arranged on the half-hull (2); The slider (674) is movably arranged on the fixing frame (3), the fixing frame (3) is provided with a slide groove (675) for the slider (674) to move, the slider (674) is also provided with a limit axis (672), and the slider (674) is also provided with a through hole (6741) for the steel wire rope (66) to pass through; The fixing plate (671) is arranged at the sliding groove (675) on the fixing frame (3); The second spring (673) is sleeved on the limiting shaft (672), and one end of the second spring (673) is abutted against the fixing plate (671), and the other end is abutted against the sliding block (674).

9. The fixing tool for floating a half-ship in a dock according to claim 8, characterized in that: A plurality of guide rollers (6742) rotatably connected to the steel wire rope (66) are arranged in the through hole (6741) of the slider (674).

10. A method for setting up a pier in place when half of a ship is lifted up in a dock, applied to a fixing tool for setting up a pier in place when half of a ship is lifted up in a dock as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Arranging a corresponding number of the piers (11) according to the size of the half-hull (2); S2, then setting the distance between the two fixing frames (3) according to the specifications of the half-hull (2), and fixing the fixing frames (3) on the platform (1) in the dock; S3, then moving the half-hull (2) between the fixed frames (3) and landing on the pier (11) at the same time; S4, connecting the first belt cable (4) on the half-hull (2) with a connection point in the dock using a cable; S5, after the connection and fixation are completed, the half-hull (2) is fixed again between the two fixing frames (3) through the positioning mechanism (5). S6. After the following operations are completed, the half-hull (2) can be floated.

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