A floating crane transport device and method for bridge demolition

Abstract

This invention relates to the field of bridge dismantling construction and discloses a floating crane transport device for large components used in bridge dismantling. The device includes a support section and a limiting mechanism, the limiting mechanism being symmetrically fixedly connected to the side end face of the support section. It also includes a drive mechanism, a unloading mechanism, and a transport trolley. The drive mechanism is fixedly installed on the upper surface of the support section, the unloading mechanism is fixedly connected to the center of the side end face of the support section, and the transport trolley is slidably installed on the upper surface of the limiting mechanism. This invention, through the coordinated operation of the support section, limiting mechanism, drive mechanism, unloading mechanism, and transport trolley, enables the cyclic transport of bridge components or concrete slabs, thereby improving the efficiency of bridge dismantling.

Description

Technical Field

[0001] This invention relates to the field of bridge dismantling construction, and specifically to a floating crane transport device and method for bridge dismantling. Background Technology

[0002] A bridge is generally a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the rapidly developing modern transportation industry, the term "bridge" has also been extended to refer to structures built across mountains, challenging geological conditions, or to meet other transportation needs, making travel more convenient. A bridge typically consists of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles. The substructure includes abutments, piers, and foundations. Supports are force-transmitting devices installed at the points where the bridge span structure supports the piers or abutments. Ancillary structures include approach slabs, tapered slopes, revetments, and diversion works.

[0003] When a bridge reaches the end of its service life after years of use, it becomes a dangerous bridge, requiring closure and dismantling to prevent harm to passing ships and to prevent people from being injured by unauthorized access. However, during the dismantling process, existing bridges, due to their dangerous condition, cannot bear the weight of machinery and transport vehicles, making the transportation of bridge components and concrete slabs difficult and potentially posing a safety hazard to workers. Furthermore, the slow transport of bridge components and concrete slabs hinders the efficiency of bridge dismantling. Summary of the Invention

[0004] The purpose of this invention is to provide a floating crane transport device and method for bridge demolition, solving the following technical problem: the inconvenience of cyclic and rapid transport of bridge components and concrete slabs.

[0005] The objective of this invention can be achieved through the following technical solution: a floating crane transport device for large components used in bridge demolition, comprising: a support part and a limiting mechanism, wherein the limiting mechanism is symmetrically and fixedly connected to the side end face of the support part;

[0006] It also includes a drive mechanism, a feeding mechanism, and a conveying trolley. The drive mechanism is fixedly installed on the upper surface of the support, the feeding mechanism is fixedly connected to the center of the side end face of the support, and the conveying trolley is slidably installed on the upper surface of the limiting mechanism.

[0007] The support unit has a support base plate inside, a controller is fixedly installed at the center of the upper surface of the support base plate, support frames are symmetrically arranged on the upper surface of the support base plate, and limit frames are symmetrically welded to the sides of the support base plate.

[0008] A limiting inclined plate is welded to the bottom side of the support frame. A control switch is slidably engaged in the center of the limiting inclined plate, and a reset spring is sleeved on the outer surface of the control switch.

[0009] The limiting mechanism is equipped with a limiting frame inside, and guide rails are engaged at both ends of the limiting frame.

[0010] A connecting plate is symmetrically welded to the outer surface of one end of the guide rail. An arc-shaped slot is opened in the center of the top surface of the guide rail. A locking block is provided at the bottom of both ends of the limiting frame. Limiting blocks are symmetrically provided at both ends of the limiting frame and at the upper edge of the locking block.

[0011] The drive mechanism is symmetrically provided with a first rotating shaft and a second rotating shaft inside. A winding drum is provided on the outer surface of one end of the first rotating shaft and the second rotating shaft. A connecting rope is fixedly connected to the outer surface of the winding drum. A drive motor is fixedly connected to one end of the second rotating shaft.

[0012] A second gear is provided on the outer surface of one end of the first rotating shaft, a first gear is provided on the outer surface of one end of the second rotating shaft, a first transmission gear is meshed with the outer surface of the second gear, a limit shaft is provided at the center of the side of the first transmission gear, and a second transmission gear is meshed with the outer surface of the first gear.

[0013] The feeding mechanism has a support base inside, and cylinders are evenly and symmetrically arranged on the upper surface of the support base. A bracket is fixedly installed on the upper surface of the support base and at the bottom of the cylinders. A crossbar is rotatably engaged at the top of the cylinders.

[0014] The conveying trolley is equipped with a conveying base plate inside, and rollers are evenly arranged on the bottom surface of the conveying base plate, while rubber blocks are evenly arranged on the upper surface of the conveying base plate.

[0015] A tilting plate is rotatably mounted on one side of the top of the conveying base plate. A connecting frame is welded to the middle of the side end of the tilting plate. A rubber pad layer is fixedly connected to the upper surface of the tilting plate. Connecting parts are rotatably mounted at the middle of both ends of the conveying base plate.

[0016] The guide rails are connected end to end by connecting plates. The guide rails are inserted into the side of the support base plate through limiting frames. The first transmission gear and the second transmission gear are rotatably meshed. The first transmission gear and the second transmission gear are rotatably locked at the bottom of the controller. A limiting post is provided at the bottom center of the support frame. One end of the connecting rope is fixedly connected to the end of the conveying base plate through a connector. The center of one end of the conveying base plate is in movable contact with one end of the control switch. An arc-shaped clamping plate is provided on the side of the connecting frame, and the arc-shaped clamping plate is inclined on the side of the connecting frame. A T-shaped clamping plate is provided at the bottom center of the conveying base plate. The connecting rope slides over the outer surface of the limiting post and the bottom outer surfaces of both ends of the limiting frame.

[0017] A method for transporting large components using a floating crane for bridge demolition includes the following methods:

[0018] S1. First, the conveying device is constructed so that the limiting mechanism and the support are fixedly connected. At the same time, the limiting mechanism is laid on the bridge deck, and the conveying trolley is slidably engaged with the upper surface of the limiting mechanism. The two sets of conveying trolleys are arranged in a front-to-back distribution so that the two sets of conveying trolleys can run alternately and synchronously.

[0019] S2. Then control the hoisting machine to stack the dismantled bridge panels on the upper surface of the conveying trolley, and then control the drive mechanism to drive the two sets of conveying trolleys to move synchronously in opposite directions until the dismantled bridge panels are transported to the roadside at the end of the bridge.

[0020] S3. Simultaneously, the conveying trolley will press the control switch to activate the cylinder, which in turn drives the crossbar to extend until the crossbar engages with the arc-shaped clamping plate on the side of the connecting frame. As the cylinder continues to extend, the tilting plate is lifted and tilted, and the bridge plate detaches from the upper surface of the tilting plate, thus completing the automatic unloading function. Then, the two sets of conveying trolleys are controlled to run in a cycle.

[0021] As a further aspect of the present invention: the beneficial effects of the present invention are:

[0022] (1) By laying the guide rail assembly on the bridge deck, the present invention can provide a transport track for the transport trolley, thereby facilitating the transport trolley to transport the dismantled components and concrete slabs of the bridge, and avoiding the transport vehicle from moving back and forth on the bridge deck, which would increase the probability of the bridge collapsing. This would reduce the number of construction workers working on the bridge deck and reduce the probability of injury to construction workers.

[0023] (2) By setting a feeding mechanism at the center of the side of the support, the present invention can squeeze the control switch to make the cylinder run when the conveying trolley reaches the end of the bridge, thereby driving the tilting plate to tilt, so that the bridge component or concrete slab is separated from the upper surface of the tilting plate, thereby completing the automatic feeding function. When the conveying trolley is separated from the control switch, the cylinder will retract and reset, thereby preparing for the next feeding.

[0024] (3) The present invention can increase the friction between the rubber pad layer on the upper surface of the flipping plate and the bridge component or concrete slab by setting a rubber pad layer, and the rubber block on the upper surface of the conveying base plate can play a shock-absorbing role in resetting and flipping the rubber pad layer. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the conveying device structure;

[0027] Figure 2 This is a schematic diagram of the limiting mechanism.

[0028] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0029] Figure 4 This is a schematic diagram of the end structure of the conveying device;

[0030] Figure 5 for Figure 4 A magnified view of the structure at point A in the middle;

[0031] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point C in the middle;

[0032] Figure 7 This is a schematic diagram of the conveyor trolley structure.

[0033] Figure Descriptions: 1. Support unit; 2. Limiting mechanism; 3. Drive mechanism; 4. Unloading mechanism; 5. Conveying trolley; 11. Controller; 12. Limiting frame; 13. Support frame; 14. Return spring; 15. Limiting inclined plate; 16. Control switch; 17. Support base plate; 21. Guide rail; 22. Limiting frame; 23. Snap-fit ​​block; 24. Connecting plate; 25. Arc-shaped slot; 26. Limiting block; 31. First rotating shaft; 32. Second rotating shaft; 33. Third rotating shaft; 44. First rotating shaft; 55. Second rotating shaft; 66. Third rotating shaft; 77. Third rotating shaft; 88. Third rotating shaft; 98. Third rotating shaft; 108. Third rotating shaft; 11. Third rotating shaft; 12. Third rotating shaft; 13. Fourth rotating shaft; 14. Third rotating shaft; 15. Third rotating shaft; 16. Third rotating shaft; 17. Third rotating shaft; 18. Third rotating shaft; 19. Third rotating shaft; 10 ... 33. Connecting rope; 34. Rewind drum; 35. Drive motor; 36. First gear; 37. Second gear; 38. Limiting shaft; 39. First transmission gear; 310. Second transmission gear; 41. Support base; 42. Cylinder; 43. Bracket; 44. Crossbar; 51. Roller; 52. Conveying base plate; 53. Connecting piece; 54. Rubber block; 55. Tilting plate; 56. Rubber pad; 57. Connecting frame. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-7 As shown, the present invention is a floating crane transport device for large components used in bridge demolition, comprising: a support part 1 and a limiting mechanism 2, wherein the limiting mechanism 2 is symmetrically fixedly connected to the side end face of the support part 1;

[0036] It also includes a drive mechanism 3, a feeding mechanism 4 and a conveying trolley 5. The drive mechanism 3 is fixedly installed on the upper surface of the support part 1, the feeding mechanism 4 is fixedly connected to the center of the side end face of the support part 1, and the conveying trolley 5 is slidably installed on the upper surface of the limiting mechanism 2.

[0037] The support part 1 is provided with a support base plate 17 inside. A controller 11 is fixedly installed at the center of the upper surface of the support base plate 17. A support frame 13 is symmetrically arranged on the upper surface of the support base plate 17. A limit frame 12 is symmetrically welded to the side of the support base plate 17.

[0038] A limiting inclined plate 15 is welded to the bottom side of the support frame 13. A control switch 16 is slidably engaged in the center of the limiting inclined plate 15. A reset spring 14 is sleeved on the outer surface of the control switch 16.

[0039] The limiting mechanism 2 is equipped with a limiting frame 22 inside, and guide rails 21 are engaged at the bottom of both ends of the limiting frame 22;

[0040] A connecting plate 24 is symmetrically welded to the outer surface of one end of the guide rail 21. An arc-shaped slot 25 is opened in the center of the top surface of the guide rail 21. A locking block 23 is provided at the bottom of both ends of the limiting frame 22. A limiting block 26 is symmetrically provided at both ends of the limiting frame 22 and at the upper edge of the locking block 23.

[0041] The drive mechanism 3 is symmetrically provided with a first rotating shaft 31 and a second rotating shaft 32. A winding drum 34 is provided on the outer surface of one end of the first rotating shaft 31 and the second rotating shaft 32. A connecting rope 33 is fixedly connected to the outer surface of the winding drum 34. A drive motor 35 is fixedly connected to one end of the second rotating shaft 32.

[0042] A second gear 37 is provided on the outer surface of one end of the first rotating shaft 31, a first gear 36 is provided on the outer surface of one end of the second rotating shaft 32, a first transmission gear 39 is meshed with the outer surface of the second gear 37, a limit shaft 38 is provided at the center of the side of the first transmission gear 39, and a second transmission gear 310 is meshed with the outer surface of the first gear 36.

[0043] The feeding mechanism 4 has a support base 41 inside. Cylinders 42 are evenly and symmetrically arranged on the upper surface of the support base 41. A bracket 43 is fixedly installed on the upper surface of the support base 41 and at the bottom of the cylinder 42. A crossbar 44 is rotatably engaged at the top of the cylinder 42.

[0044] The conveying trolley 5 is equipped with a conveying base plate 52 inside. Rollers 51 are evenly arranged on the bottom surface of the conveying base plate 52, and rubber blocks 54 are evenly arranged on the upper surface of the conveying base plate 52.

[0045] A tilting plate 55 is rotatably installed on one side of the top of the conveyor base plate 52. A connecting frame 57 is welded to the middle of the side end of the tilting plate 55. A rubber pad layer 56 is fixedly connected to the upper surface of the tilting plate 55. Connecting parts 53 are rotatably installed at the middle of both ends of the conveyor base plate 52.

[0046] The guide rails 21 are connected end to end by connecting plates 24. The guide rails 21 are inserted into the side of the support base plate 17 through the limiting frame 12. The first transmission gear 39 and the second transmission gear 310 are rotatably meshed and connected. The first transmission gear 39 and the second transmission gear 310 are rotatably locked at the bottom of the controller 11. A limiting post is provided at the bottom center of the support frame 13. One end of the connecting rope 33 is fixedly connected to the end of the conveying base plate 52 through the connector 53. The center of one end of the conveying base plate 52 is in movable contact with one end of the control switch 16. An arc-shaped clamping plate is provided at the side end of the connecting frame 57, and the arc-shaped clamping plate is inclined at the side end of the connecting frame 57. A T-shaped clamping plate is provided at the bottom center of the conveying base plate 52. The connecting rope 33 is slidably overlapped on the outer surface of the limiting post and the bottom outer surfaces of both ends of the limiting frame 22.

[0047] Through the above technical solution, guide rails 21 can be connected end to end via connecting plates 24, allowing for combined connection and use according to the length of the bridge. Guide rails 21 are inserted into the side of the support base plate 17 via limiting frames 12, facilitating a fixed connection between guide rails 21 and the support base plate 17. The first transmission gear 39 and the second transmission gear 310 are rotatably meshed, enabling reverse transmission between the first gear 36 and the second gear 37. A limiting post is set at the center of the bottom of the support frame 13 to limit the sliding of the connecting rope 33. One end of the connecting rope 33 is fixedly connected to the end of the conveying base plate 52 via a connector 53, thereby providing traction control for the sliding of the conveying trolley 5. The center of one end of the conveying base plate 52... The cylinder 42 is activated by contacting one end of the control switch 16. An arc-shaped clamping plate is provided on the side of the connecting frame 57 to facilitate the connection between the flipping plate 55 and the outer surface of the crossbar 44. The arc-shaped clamping plate is inclined on the side of the connecting frame 57 to facilitate the lifting and flipping of the flipping plate 55. A T-shaped clamping plate is provided at the bottom center of the conveying base plate 52, which can slide and clamp with the arc-shaped clamping groove 25 on the top surface of the guide rail 21. This ensures that the conveying base plate 52 remains stable on the upper surface of the guide rail 21 when the flipping plate 55 is flipped. The connecting rope 33 slides on the outer surface of the limiting post and the bottom outer surfaces of both ends of the limiting frame 22, thereby limiting the sliding of the connecting rope 33 and ensuring that the conveying trolley 5 slides stably back and forth on the upper surface of the guide rail 21.

[0048] A method for transporting large components using a floating crane for bridge demolition includes the following methods:

[0049] S1. First, the conveying device is constructed so that the limiting mechanism 2 and the support part 1 are fixedly connected. At the same time, the limiting mechanism 2 is laid on the bridge deck, and the conveying trolley 5 is slidably engaged on the upper surface of the limiting mechanism 2. The two sets of conveying trolleys 5 are arranged in a front-to-back distribution so that the two sets of conveying trolleys 5 can run alternately and synchronously.

[0050] S2. Then control the hoisting machine to stack the dismantled bridge panels on the upper surface of the conveying trolley 5, and then control the drive mechanism 3 to run, thereby driving the two sets of conveying trolleys 5 to move synchronously in opposite directions until the dismantled bridge panels are transported to the roadside at the end of the bridge.

[0051] S3. Simultaneously, the conveying trolley 5 will press the control switch 16 to make the cylinder 42 run, thereby causing the cylinder 42 to drive the crossbar 44 to extend until the crossbar 44 engages with the arc-shaped clamping plate on the side of the connecting frame 57. As the cylinder 42 continues to extend, the tilting plate 55 is lifted and tilted. At the same time, the bridge plate will detach from the upper surface of the tilting plate 55, thereby completing the automatic unloading function. Then, the two sets of conveying trolleys 5 can continue to be controlled to run in a cycle.

[0052] The working principle of this invention is as follows: When demolishing a bridge, the laying length of the guide rail 21 is first calculated based on the length of the bridge. Then, the support 1 is fixedly placed at the bridgehead. Next, one end of the guide rail 21 is inserted into the limiting frame 12 and fixed with fastening screws. Then, multiple sets of guide rails 21 are inserted end to end through the connecting plate 24 and fixed with fastening bolts until the guide rails 21 are laid in the middle of the bridge. Then, the limiting frame 22 is fixedly clipped onto the upper surface of one end of the guide rail 21. Finally, two sets of conveying trolleys 5 are placed at the front and rear ends of the guide rail 21 respectively, and the connecting rope 33 is attached to the limiting frame 12. At both ends of the support frame 22, two sets of conveyor trolleys 5 are simultaneously connected end-to-end. Then, the hoisting machinery is started to stack bridge components or concrete slabs on the upper surface of the conveyor trolleys 5. Then, the drive motor 35 is started to rotate, driving the second rotating shaft 32 and the winding drum 34 connected at one end to rotate synchronously. The winding drum 34 winds up the connecting rope 33, so that the connecting rope 33 pulls the front end of the conveyor trolley 5 to move on the upper surface of the guide rail 21 until one end of the conveyor trolley 5. At the same time, the arc-shaped clamping plate on the side of the conveyor trolley 5 will engage with the outer surface of the crossbar 44, and one end of the conveyor trolley 5 will press the control switch 16. This causes the cylinder 42 to extend the crossbar 44, which in turn presses against the limiting arc plate, lifting and flipping the tilting plate 55. Simultaneously, the bridge plate detaches from the upper surface of the tilting plate 55, thus completing the automatic unloading function. While the second rotating shaft 32 rotates, it drives the second transmission gear 310 to rotate synchronously via the first gear 36 at one end. The second transmission gear 310 then drives the first transmission gear 39 to rotate synchronously. When the first transmission gear 39 rotates, it drives the second gear 37, which is meshed with its outer surface, to rotate synchronously. When the second gear 37 rotates, it drives the first rotating shaft... The first shaft 31 rotates synchronously, and the first shaft 31 unwinds the connecting rope 33 through the winding drum 34 on the outer surface. Therefore, when the drive motor 35 runs, it will drive the first shaft 31 and the second shaft 32 to rotate synchronously in opposite directions, so that the two sets of conveying trolleys 5 slide synchronously in opposite directions on the upper surface of the guide rail 21. This allows the two sets of conveying trolleys 5 to circulate and transport bridge components or concrete slabs. Therefore, through the coordinated operation of the support part 1, the limiting mechanism 2, the drive mechanism 3, the unloading mechanism 4 and the conveying trolleys 5, the bridge components or concrete slabs can be circulated and transported, thereby improving the dismantling efficiency of the bridge.

[0053] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A floating crane transport device for large components used in bridge demolition, comprising: The support part (1) and the limiting mechanism (2) are symmetrically fixedly connected to the side end face of the support part (1); The feature is that it further includes a drive mechanism (3), a feeding mechanism (4) and a conveying trolley (5), wherein the drive mechanism (3) is fixedly installed on the upper surface of the support part (1), the feeding mechanism (4) is fixedly connected to the center of the side end face of the support part (1), and the conveying trolley (5) is slidably installed on the upper surface of the limiting mechanism (2); The support part (1) is provided with a support base plate (17) inside. A controller (11) is fixedly installed at the center of the upper surface of the support base plate (17). A support frame (13) is symmetrically arranged on the upper surface of the support base plate (17). A limit frame (12) is symmetrically welded to the side of the support base plate (17). The support frame (13) has a limiting inclined plate (15) welded to the bottom side of its side, and a control switch (16) is slidably connected to the center of the limiting inclined plate (15). The limiting mechanism (2) is provided with a limiting frame (22) inside, and guide rails (21) are engaged at the bottom of both ends of the limiting frame (22). A connecting plate (24) is symmetrically welded to the outer surface of one end of the guide rail (21); The drive mechanism (3) is symmetrically provided with a first rotating shaft (31) and a second rotating shaft (32). A winding drum (34) is provided on the outer surface of one end of the first rotating shaft (31) and the second rotating shaft (32). A connecting rope (33) is fixedly connected to the outer surface of the winding drum (34). A second gear (37) is provided on the outer surface of one end of the first rotating shaft (31), a first gear (36) is provided on the outer surface of one end of the second rotating shaft (32), a first transmission gear (39) is meshed on the outer surface of the second gear (37), and a second transmission gear (310) is meshed on the outer surface of the first gear (36). The conveying trolley (5) is equipped with a conveying base plate (52) inside; A flip plate (55) is rotatably installed on one side of the top of the conveying base plate (52). A connecting frame (57) is welded to the middle of the side end of the flip plate (55). Connecting pieces (53) are rotatably installed at the middle of both ends of the conveying base plate (52). The guide rails (21) are connected end to end by a connecting plate (24). The guide rails (21) are inserted into the side of the support base plate (17) through a limiting frame (12). The first transmission gear (39) and the second transmission gear (310) are rotatably meshed. The first transmission gear (39) and the second transmission gear (310) are rotatably locked at the bottom of the controller (11). A limiting post is provided at the bottom center of the support frame (13). One end of the connecting rope (33) is fixedly connected to the end of the conveying base plate (52) through a connector (53). The center of one end of the conveying base plate (52) is in movable contact with one end of the control switch (16). The side end of the connecting frame (57) is provided with an arc-shaped card plate, and the arc-shaped card plate is inclined at the side end of the connecting frame (57). The bottom center of the conveying base plate (52) is provided with a T-shaped card plate. The connecting rope (33) slides and overlaps on the outer surface of the limiting column and the bottom outer surface of both ends of the limiting frame (22).

2. The floating crane transport device for large components used in bridge demolition according to claim 1, characterized in that, A reset spring (14) is sleeved on the outer surface of the control switch (16).

3. A floating crane transport device for large components used in bridge demolition according to claim 2, characterized in that, The top surface of the guide rail (21) has an arc-shaped slot (25) at the center. Both ends of the limit frame (22) are provided with locking blocks (23). Both ends of the limit frame (22) and the upper edge of the locking blocks (23) are symmetrically provided with limit blocks (26).

4. A floating crane transport device for large components used in bridge demolition according to claim 3, characterized in that, A drive motor (35) is fixedly connected to one end of the second rotating shaft (32); A limiting shaft (38) is provided at the center of the side of the first transmission gear (39).

5. A floating crane transport device for large components used in bridge demolition according to claim 4, characterized in that, The feeding mechanism (4) is provided with a support base (41) inside. Cylinders (42) are evenly and symmetrically arranged on the upper surface of the support base (41). A bracket (43) is fixedly installed on the upper surface of the support base (41) and at the bottom of the cylinder (42). A crossbar (44) is rotatably engaged at the top of the cylinder (42).

6. A floating crane transport device for large components used in bridge demolition according to claim 5, characterized in that, Rollers (51) are evenly arranged on the bottom surface of the conveying base plate (52), and rubber blocks (54) are evenly arranged on the upper surface of the conveying base plate (52). A rubber pad (56) is fixedly connected to the upper surface of the flip plate (55).

7. A method for transporting large components for bridge demolition using a floating crane, comprising any one of claims 1-6, characterized in that, The following shipping methods are included: S1. First, the conveying device is constructed so that the limiting mechanism (2) and the support part (1) are fixedly connected. At the same time, the limiting mechanism (2) is laid on the bridge deck, and the conveying trolley (5) is slidably engaged on the upper surface of the limiting mechanism (2). The two sets of conveying trolleys (5) are arranged in a front-to-back distribution so that the two sets of conveying trolleys (5) can run alternately and synchronously. S2. Then control the hoisting machine to stack the dismantled bridge panels on the upper surface of the conveying trolley (5), and then control the drive mechanism (3) to run, thereby driving the two sets of conveying trolleys (5) to move in opposite directions synchronously until the dismantled bridge panels are transported to the roadside at the end of the bridge. S3. At the same time, the conveying trolley (5) will squeeze the control switch (16) to make the cylinder (42) run, so that the cylinder (42) drives the crossbar (44) to extend until the crossbar (44) engages with the arc-shaped card plate on the side of the connecting frame (57). As the cylinder (42) continues to extend, the flipping plate (55) is lifted and flipped. At the same time, the bridge plate will detach from the upper surface of the flipping plate (55), thus completing the automatic unloading function. Then, the two sets of conveying trolleys (5) can continue to be controlled to run in a cycle.

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