Self-floating transportation system for steel box girder segments

Abstract

The present invention discloses a self-floating transportation system for steel box girder segments, which is used to transport sealed steel box girder segments on ramps and waterways. The direction from the ramp to the waterway is the first direction, and the junction of the ramp and the waterway is the water entry position. The self-floating transportation system for steel box girder segments includes a pushing mechanism, a power boat and a clamping structure; the pushing mechanism includes a pushing part movably arranged along the first direction, which is used to push the steel box girder segments on the ramp into the water; the power boat is used for detachably connecting with the steel box girder segments, and is used to transport the steel box girder segments to the target position of the waterway when the pushing part pushes the steel box girder segments into the water; the clamping structure includes a clamping part arranged at the tail of the power boat, and the clamping part is movably arranged, which is used to detachably connect the power boat and the steel box girder segments; the steps of loading onto a vehicle or a ship and the barge in the transportation process can be omitted, saving costs; moreover, the power boat has a shallow draft, a small height above the water surface and a small width, has low requirements for the waterway, is simple and easy to operate, and has strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge manufacturing, and in particular to a self-floating transportation system for steel box girder segments. Background Art

[0002] At present, long-span bridges mostly adopt the form of steel structure box girders. Steel structure box girders are characterized by large volume and heavy weight, and the transportation of steel structure box girders has become one of the key factors restricting the construction of steel box girder bridges. Difficulties in land transportation: It can only be transported by trucks on the premise of segmenting the beam. Even after segmentation, high requirements are imposed on the vehicle and the beam; high requirements are imposed on the road, and ordinary roads and intersections are difficult to meet the transportation requirements; traffic control cooperation is required and it is not suitable for long-distance transportation; even if it is transported to the site, how to unload and install it is also a problem. For water transportation, whether using large ships or barges, high requirements are imposed on the waterway. Summary of the Invention

[0003] The main object of the present invention is to propose a self-floating transportation system for steel box girder segments, aiming to provide a simple, easy-to-implement, low-cost and highly practical self-floating transportation system for steel box girder segments.

[0004] To achieve the above object, the present invention proposes a self-floating transportation system for steel box girder segments, which is used for transporting sealed steel box girder segments on a ramp and a waterway. The direction from the ramp to the waterway is the first direction, and the junction of the ramp and the waterway is the water entry position. The self-floating transportation system for steel box girder segments includes:

[0005] A pushing mechanism, including a pushing part movably arranged along the first direction, for pushing the steel box girder segment on the ramp into the water;

[0006] A power boat, which is detachably connected to the steel box girder segment, and is used for transporting the steel box girder segment to the target position on the waterway when the pushing part pushes the steel box girder segment into the water; and

[0007] A clamping structure, including a clamping part arranged at the tail of the power boat, the clamping part is movably arranged, and is used for detachably connecting the power boat and the steel box girder segment.

[0008] Optionally, the pushing mechanism includes:

[0009] A base plate, which is laid on the ramp, and one end of which is used to extend to the water entry position;

[0010] A conveying assembly, including a conveying chain plate arranged on the base plate and conveying along the first direction, the conveying path of the conveying chain plate passes through the water entry position, and the upper end surface of the conveying chain plate is used for placing the steel box girder segment; and

[0011] A pusher, which is movably arranged on the base plate, and is used for pushing the steel box girder segment into the water when the conveying chain plate conveys the steel box girder segment to the water entry position;

[0012] Wherein, the pushing part includes the conveyor chain plate and the pusher.

[0013] Optionally, a bearing plate is provided on the upper end surface of the conveyor chain plate, and the upper end surface of the bearing plate is set as a polished surface;

[0014] The pushing mechanism further includes a stop assembly provided on the bearing plate, and the stop assembly includes:

[0015] A stop bump, which is movably arranged. On its moving stroke, the stop bump has a stop position and an avoidance position, and is used to stop the steel box girder segment in the first direction when the conveyor chain plate conveys the steel box girder segment, and to avoid the steel box girder segment when the conveyor chain plate conveys the steel box girder segment to the water entry position; and,

[0016] A stop driving member, which is movably arranged and is drivingly connected to the stop bump, and is used to drive the stop bump to switch between the stop position and the avoidance position.

[0017] Optionally, the self-floating transportation system for steel box girder segments further includes a winch, the winch is used to be arranged on the side of the base plate facing away from the waterway, and the towing rope of the winch is used to tow the steel box girder segments.

[0018] Optionally, the conveying assembly further includes:

[0019] A conveying driving motor, which is arranged on the base plate, and the conveying driving motor has a conveying output shaft; and,

[0020] A roller assembly, which includes a driving wheel and a driven wheel respectively arranged on both sides of the base plate in the first direction, the driving wheel is drivingly connected to the conveying output shaft and can rotate coaxially with the conveying output shaft;

[0021] Wherein, the conveyor chain plate is arranged between the driving wheel and the driven wheel.

[0022] Optionally, the pushing mechanism further includes:

[0023] A pusher support, which is arranged on the base plate and straddles above the conveyor chain plate, and the pusher support is movably arranged along the first direction; and,

[0024] A hydraulic cylinder, the cylinder body of the hydraulic cylinder is arranged on the base plate, the piston rod of the hydraulic cylinder is arranged along the first direction, and its free end is connected to the pusher support;

[0025] Wherein, the pusher is arranged on the pusher support.

[0026] Optionally, the clamping structure includes:

[0027] The movable rod has a mounting end and a connecting end which are oppositely arranged. The mounting end is movably arranged at the tail of the power boat, so that the connecting end can approach and move away from the power boat.

[0028] The clamping jaw is arranged at the connecting end. The clamping jaw includes two oppositely arranged jaw rods. A clamping gap for accommodating the side wing of the steel box girder segment is defined between the two jaw rods. The two jaw rods can move relative to each other to adjust the size of the clamping gap; and

[0029] A plurality of electromagnets are respectively arranged on two opposite surfaces of the two jaw rods.

[0030] Wherein, the clamping part includes the clamping jaw.

[0031] Optionally, the self-floating transportation system of the steel box girder segment further includes a connecting steel cable. One end of the connecting steel cable is fixed to the tail of the power boat, and the other end of the connecting steel cable is used to connect the side wing hanger of the steel box girder segment.

[0032] Optionally, the self-floating transportation system of the steel box girder segment further includes an angle sensor for detecting the water entry deflection angle of the steel box girder segment;

[0033] The self-floating transportation system of the steel box girder segment further includes an adjusting assembly. The adjusting assembly includes:

[0034] An adjusting pipe fitting, including a first pipe segment, a second pipe segment and a third pipe segment which are communicated. The first pipe segment and the third pipe segment are used to be arranged on two opposite side wings of the steel box girder segment and are arranged corresponding to the middle part of the steel box girder segment. The second pipe segment is arranged on the top of the steel box girder segment, and a filler is arranged in the second pipe segment;

[0035] A valve body structure, including a first valve body and a second valve body. The first valve body is arranged at the connection of the first pipe segment and the second pipe segment. The second valve body is arranged at the connection of the third pipe segment and the second pipe segment. The first valve body and the second valve body are electrically connected with the angle sensor; and

[0036] A push plate structure is movably arranged in the second pipe segment to push the filler from the second pipe segment to the first pipe segment or the third pipe segment correspondingly.

[0037] Optionally, the push plate structure includes two push plates arranged in the second pipe segment, and the two push plates can move in opposite directions;

[0038] The adjusting assembly further includes two electric push rods arranged between the two push plates. The two push rods of the two electric push rods are arranged in opposite directions to drive the push plates connected to the corresponding sides respectively.

[0039] In the technical solution of the present invention, the self-floating transportation system for steel box girder segments is used to transport sealed steel box girder segments on ramps and waterways. The self-floating transportation system for steel box girder segments includes a pushing mechanism, a power boat, and a clamping structure; the pushing part of the pushing mechanism is used to push the steel box girder segments on the ramp into the water; the power boat is used to transport the steel box girder segments to the target position in the waterway when the pushing part pushes the steel box girder segments into the water; the clamping part of the clamping structure is used to detachably connect the power boat and the steel box girder segments; during the actual transportation process, the pushing part of the pushing mechanism pushes the steel box girder segments from the ramp into the water, the power boat moves to the position of the steel box girder segments, the clamping part at the tail of the power boat moves to detachably connect the power boat and the steel box girder segments, and after the clamping part clamps and fixes the steel box girder segments, the power boat transports the steel box girder segments to the target position in the waterway; in this way, the steps of loading onto a vehicle or a ship during the transportation process can be omitted, improving the transportation efficiency; at the same time, the barge can also be omitted, saving costs; furthermore, since the power boat has a shallow draft, a small height above the water surface, and a small width, the self-floating transportation system for steel box girder segments has low requirements for waterways, can meet the transportation in waterways without shipping conditions, is simple and easy to implement, and can also improve the practicability of the self-floating transportation system for steel box girder segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0041] Figure 1 It is a schematic structural diagram of an embodiment of the self-floating transportation system for steel box girder segments provided by the present invention;

[0042] Figure 2 For Figure 1 the structural schematic diagram of the power boat in the transportation state;

[0043] Figure 3 For Figure 2 the structural schematic diagram of the clamping structure in;

[0044] Figure 4 For Figure 1 the structural schematic diagram of the adjustment component in.

[0045] Description of the reference numerals in the embodiments provided by the present invention:

[0046]

[0047]

[0048] The realization, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0052] When a large number of existing equipment enter the peak period of renewal, the demand and development of pure electric construction machinery have been greatly improved. Pure electric construction machinery has the advantages of energy conservation, emission reduction, high safety performance and being conducive to intelligent upgrading. Taking an electric excavator as an example, the front working device, the upper rotating body slewing device and the lower traveling device of the electric excavator are all operated by a power-driven hydraulic pump; the power is provided by the wires outside the vehicle body and controlled by the internal control device of the vehicle body. While ensuring high operation efficiency, it reduces the operation cost and realizes zero exhaust gas emissions; when operating in places such as tunnels where there are flammable and explosive gases, the electric excavator does not have the detonation hazard of fuel-powered excavators, improving the safety performance; at the same time, the electric excavator will accelerate the development of the excavator towards intelligence and informatization, which will be a qualitative leap in the development of the excavator.

[0053] At present, long-span bridges mostly adopt the form of steel box girders. Steel box girders are characterized by large volume and heavy weight, and the transportation of steel box girders has become one of the key factors restricting the construction of steel box girder bridges. Difficulties in land transportation: Truck transportation can only be carried out on the premise of segmenting the girder. Even after segmentation, high requirements are imposed on the vehicle and the girder; high requirements are imposed on the road, and ordinary roads and intersections are difficult to meet the transportation requirements; traffic control cooperation is required and it is not suitable for long-distance transportation; even if it is transported to the site, how to unload and install it is also a problem. For water transportation, whether using large ships or barges, relatively high requirements are imposed on the waterway.

[0054] In view of this, the present invention provides a self-floating transportation system for steel box girder segments. Figures 1 to 3 This is a specific embodiment of the self-floating transportation system for steel box girder segments provided by the present invention.

[0055] Please refer to Figures 1 to 3 , the self-floating transportation system 100 for steel box girder segments is used to transport sealed steel box girder segments 400 on a ramp 200 and a waterway 300. The direction from the ramp 200 to the waterway 300 is the first direction F1, and the junction of the ramp 200 and the waterway 300 is the water entry position. The self-floating transportation system 100 for steel box girder segments includes a pushing mechanism 1, a power boat 2, and a clamping structure 3; the pushing mechanism 1 includes a pushing part movably arranged along the first direction F1, which is used to push the steel box girder segment 400 on the ramp 200 into the water; the power boat 2 is used for detachably connecting with the steel box girder segment 400, and is used to transport the steel box girder segment 400 to the target position of the waterway 300 when the pushing part pushes the steel box girder segment 400 into the water; the clamping structure 3 includes a clamping part arranged at the tail of the power boat 2, and the clamping part is movably arranged and is used for detachably connecting the power boat 2 with the steel box girder segment 400.

[0056] In the technical solution of the present invention, the self-floating transportation system 100 for steel box girder segments is used to transport sealed steel box girder segments 400 on a ramp 200 and a waterway 300. The self-floating transportation system 100 for steel box girder segments includes a pushing mechanism 1, a power boat 2, and a clamping structure 3. The pushing part of the pushing mechanism 1 is used to push the steel box girder segment 400 on the ramp 200 into the water. The power boat 2 is used to transport the steel box girder segment 400 to the target position on the waterway 300 when the pushing part pushes the steel box girder segment 400 into the water. The clamping part of the clamping structure 3 is used to detachably connect the power boat 2 and the steel box girder segment 400. During the actual transportation process, the pushing part of the pushing mechanism 1 pushes the steel box girder segment 400 from the ramp 200 into the water. The power boat 2 moves to the position of the steel box girder segment 400, and the clamping part at the tail of the power boat 2 moves to detachably connect the power boat 2 and the steel box girder segment 400. After the clamping part clamps and fixes the steel box girder segment 400, the power boat 2 transports the steel box girder segment 400 to the target position on the waterway 300. In this way, the processes of loading onto a vehicle or a ship during transportation can be omitted, improving transportation efficiency. At the same time, the barge can also be omitted, saving costs. Moreover, since the power boat 2 has a shallow draft, a small height above the water surface, and a small width, the self-floating transportation system 100 for steel box girder segments has low requirements for the waterway 300, can meet the transportation in waterways 300 without shipping conditions, is simple and easy to operate, and can also improve the practicability of the self-floating transportation system 100 for steel box girder segments.

[0057] Specifically, the pushing mechanism 1 includes a base plate 11, a conveying assembly 12, and a pusher 13. The base plate 11 is laid on the ramp 200, and one end of it is used to extend to the water entry position. The conveying assembly 12 includes a conveying chain plate 121 arranged on the base plate 11 and conveying along the first direction F1. The conveying path of the conveying chain plate 121 passes through the water entry position, and the upper surface of the conveying chain plate 121 is used for the steel box girder segment 400 to rest on. The pusher 13 is movably arranged on the base plate 11 to push the steel box girder segment 400 into the water when the conveying chain plate 121 conveys the steel box girder segment 400 to the water entry position. Among them, the pushing part includes the conveying chain plate 121 and the pusher 13. In this embodiment, the steel box girder segment 400 is placed on the conveying chain plate 121. The conveying chain plate 121 conveys the steel box girder segment 400 to the water entry position. Immediately afterwards, the pusher 13 pushes the steel box girder segment 400 into the water. In this way, the water entry operation of the steel box girder segment 400 is completed, with a simple structure and convenient operation.

[0058] More specifically, a bearing plate is provided on the upper end surface of the conveying chain plate 121, and the upper end surface of the bearing plate is set as a polished surface; the pushing mechanism 1 further includes a stopping component 123 provided on the bearing plate, and the stopping component 123 includes a stopping bump 1231 and a stopping driving member; the stopping bump 1231 is movably arranged, and on its moving stroke, the stopping bump 1231 has a stopping position and an avoiding position, which are used to stop the steel box girder segment 400 in the first direction F1 when the conveying chain plate 121 conveys the steel box girder segment 400, and to avoid the steel box girder segment 400 when the conveying chain plate 121 conveys the steel box girder segment 400 to the water entry position; the stopping driving member is movably arranged and is drivingly connected to the stopping bump 1231 to drive the stopping bump 1231 to switch between the stopping position and the avoiding position; in order to reduce the driving force required by the pusher 13, therefore, the bearing plate is provided on the upper end surface of the conveying chain plate 121, and the upper end surface of the bearing plate is set as a polished surface; at the same time, in order to ensure the stability of the steel box girder segment 400 during the conveying process, a stopping bump 1231 is movably provided on the bearing plate. When the conveying chain plate 121 conveys the steel box girder segment 400, the stopping bump 1231 stops the steel box girder segment 400 in the first direction F1, and when the conveying chain plate 121 conveys the steel box girder segment 400 to the water entry position, the stopping bump 1231 avoids the steel box girder segment 400.

[0059] In order to ensure the transportation stability of the steel box girder segment 400, in the present invention, the self-floating transportation system 100 for the steel box girder segment further includes a winch 4, the winch 4 is used to be arranged on the side of the base plate 11 facing away from the waterway 300, and the towing rope of the winch 4 is used to tow the steel box girder segment 400; the winch 4 provides an entry water reaction force for the steel box girder segment 400, so as to prevent the steel box girder segment 400 from sliding down on the bearing plate due to gravity, and further ensure the transportation stability of the steel box girder segment 400.

[0060] In this embodiment, the conveying assembly 12 further includes a conveying driving motor and a roller assembly 122; the conveying driving motor is arranged on the base plate 11, and the conveying driving motor has a conveying output shaft; the roller assembly 122 includes a driving wheel and a driven wheel respectively arranged on both sides of the base plate 11 in the first direction F1, the driving wheel is drivingly connected to the conveying output shaft and can rotate coaxially with the conveying output shaft; wherein, the conveying chain plate 121 is arranged between the driving wheel and the driven wheel; with such an arrangement, the structure is simple, the cost is low, and it is convenient to operate.

[0061] Secondly, the pushing mechanism 1 further includes a pusher bracket 14 and a hydraulic cylinder; the pusher bracket 14 is arranged on the substrate 11 and straddles above the conveyor chain plate 121, and the pusher bracket 14 is movably arranged along the first direction F1; the cylinder body of the hydraulic cylinder is arranged on the substrate 11, the piston rod of the hydraulic cylinder is arranged along the first direction F1, and its free end is connected to the pusher bracket 14; wherein, the pusher 13 is arranged on the pusher bracket 14; by pushing the pusher bracket 14 through the hydraulic cylinder, the pusher 13 is driven to move, with a simple structure and convenient operation.

[0062] In the present invention, please refer to Figure 3 , the clamping structure 3 includes a movable rod 31, a claw 32 and a plurality of electromagnets 33; the movable rod 31 has an installation end and a connection end which are oppositely arranged, the installation end is movably arranged at the tail of the power boat 2 to enable the connection end to approach and move away from the power boat 2; the claw 32 is arranged at the connection end, the claw 32 includes two claw rods 321 which are oppositely arranged, a clamping gap for accommodating the flank of the steel box girder segment 400 is defined between the two claw rods 321, and the two claw rods 321 can move relative to each other to adjust the size of the clamping gap; the plurality of electromagnets 33 are respectively arranged on two opposite surfaces of the two claw rods 321; wherein, the clamping part includes the claw 32; that is to say, after the pushing mechanism 1 pushes the steel box girder segment 400 into the water, the power boat 2 moves to the position of the steel box girder segment 400, the movable rod 31 moves close to the steel box girder segment 400, and the two claw rods 321 move to clamp the steel box girder segment 400. Since the electromagnets 33 are respectively arranged on two opposite surfaces of the two claw rods 321, after the two claw rods 321 move to clamp the steel box girder segment 400, the electromagnets 33 are energized to magnetically fix the two claw rods 321 to the two flanks of the steel box girder segment 400 respectively, further improving the stability between the power boat 2 and the steel box girder segment 400.

[0063] It should be noted that the claw rod 321 includes a rod body 3211 and a gripping plate 3212, the rod body 3211 is movably arranged on the movable rod 31, the two gripping plates 3212 of the two claw rods 321 are oppositely arranged, an activity gap is formed between each gripping plate 3212 and the corresponding rod body 3211, and a spring 3213 is arranged between each gripping plate 3212 and the corresponding rod body 3211 and within the activity gap to enable the activity gap between the gripping plate 3212 and the rod body 3211 to be adjustable. In this way, the inclination angle of the gripping plate 3212 can be adjusted according to the flank of the steel box girder segment 400, so that the gripping plate 3212 can be adapted to the end face of the steel box girder segment 400, thereby improving the clamping stability of the claw 32.

[0064] In other embodiments of the present invention, the self-floating transportation system 100 for steel box girder segments further includes a connecting cable 34. One end of the connecting cable 34 is fixed to the tail of the power boat 2, and the other end of the connecting cable 34 is used to connect the side ear of the steel box girder segment 400. By providing the connecting cable 34, the stability between the power boat 2 and the steel box girder segment 400 is further improved.

[0065] In the present invention, the self-floating transportation system 100 for steel box girder segments further includes an angle sensor for detecting the water entry deflection angle of the steel box girder segment 400. The self-floating transportation system 100 for steel box girder segments further includes an adjusting assembly 5. The adjusting assembly 5 includes an adjusting pipe fitting 51, a valve body structure 52, and a push plate 531 structure 53. The adjusting pipe fitting 51 includes a first pipe section 511, a second pipe section 512, and a third pipe section 513 that are communicated. The first pipe section 511 and the third pipe section 513 are used to be arranged on two opposite side wings of the steel box girder segment 400 and are arranged corresponding to the middle of the steel box girder segment 400. The second pipe section 512 is arranged on the top of the steel box girder segment 400. A filler 54 is arranged in the second pipe section 512. The valve body structure 52 includes a first valve body and a second valve body. The first valve body is arranged at the connection of the first pipe section 511 and the second pipe section 512, and the second valve body is arranged at the connection of the third pipe section 513 and the second pipe section 512. The first valve body and the second valve body are electrically connected to the angle sensor. The push plate 531 structure 53 is movably arranged in the second pipe section 512 to push the filler 54 from the second pipe section 512 to the first pipe section 511 or the third pipe section 513 correspondingly. That is to say, after the steel box girder segment 400 enters the water and stabilizes, the angle sensor detects the water entry deflection angle of the steel box girder segment 400. According to the water entry deflection angle, the first valve body and the second valve body are selectively opened, and the corresponding push plate 531 structure 53 pushes the filler 54 from the second pipe section 512 to the first pipe section 511 or the third pipe section 513 correspondingly to adjust the gravity on both sides of the steel box girder segment 400 correspondingly, so that the steel box girder segment 400 enters the water and stabilizes, thereby ensuring the stability of the steel box girder segment 400 during transportation in the waterway 300.

[0066] Specifically, the push plate 531 structure 53 includes two push plates 531 arranged in the second pipe section 512, and the two push plates 531 can move in opposite directions. The adjusting assembly 5 further includes two electric push rods 532 arranged between the two push plates 531. The two push rods of the two electric push rods 532 are arranged in opposite directions to drive the push plates 531 connected to the corresponding sides respectively. With such an arrangement, the structure is simple and the occupied space is small.

[0067] It should be noted that the filler 54 includes a first filler and a second filler, which are respectively arranged corresponding to the first pipe section and the second pipe section. The first filler and the second filler can be made of the same material or different materials, and users can select according to actual usage conditions.

[0068] Based on the above steel box girder segment self-floating transportation system 100, the present invention also provides a self-floating transportation method for the steel box girder segment 400. The adjusting assembly 5 further includes an adjusting controller, and the adjusting controller is electrically connected to the angle sensor, the first valve body, and the second valve body; the steps of the self-floating transportation method for the steel box girder segment 400 include:

[0069] S10: Obtain the water entry deflection angle of the steel box girder segment 400;

[0070] S20: Control the opening of the first valve body or the second valve body according to the water entry deflection angle;

[0071] S30: Control the corresponding side of the electric push rod 532 to start, and the push rod of the electric push rod 532 drives the corresponding side of the push plate 531 to move, so as to correspondingly push the filler 54 from the second pipe section 512 to the first pipe section 511 or the third pipe section 513.

[0072] That is to say, after the steel box girder segment 400 enters the water and stabilizes, the angle sensor detects the water entry deflection angle of the steel box girder segment 400. According to the water entry deflection angle, the controller controls the opening of the first valve body or the second valve body, and the controller controls the corresponding side of the electric push rod 532 to start, so as to drive the push plate 531 to move, so as to correspondingly push the filler 54 from the second pipe section 512 to the first pipe section 511 or the third pipe section 513, so as to correspondingly adjust the gravity on both sides of the steel box girder segment 400, so that the steel box girder segment 400 enters the water and stabilizes, thereby ensuring the stability of the steel box girder segment 400 during transportation in the waterway 300.

[0073] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A self-floating transportation system for steel box girder segments, which is used to transport sealed steel box girder segments on ramps and waterways. The direction from the ramp to the waterway is the first direction, and the junction of the ramp and the waterway is the water entry position. It is characterized in that The self-floating transportation system for steel box girder segments includes: A pushing mechanism, including a pushing part movably arranged along the first direction, for pushing the steel box girder segments on the ramp into the water; A power boat, used for detachably connecting with the steel box girder segments, and for transporting the steel box girder segments to the target position in the waterway when the pushing part pushes the steel box girder segments into the water; and A clamping structure, including a clamping part arranged at the tail of the power boat, the clamping part being movably arranged for detachably connecting the power boat and the steel box girder segments; The pushing mechanism includes: A base plate, laid on the ramp, one end of which is used to extend to the water entry position; A conveying assembly, including a conveying chain plate arranged on the base plate and conveying along the first direction, the conveying path of the conveying chain plate passing through the water entry position, and the upper end surface of the conveying chain plate being used for placing the steel box girder segments; and A pusher, movably arranged on the base plate, for pushing the steel box girder segments into the water when the conveying chain plate conveys the steel box girder segments to the water entry position; Wherein, the pushing part includes the conveying chain plate and the pusher; The upper end surface of the conveying chain plate is provided with a bearing plate, and the upper end surface of the bearing plate is set as a polished surface; The pushing mechanism further includes a stop assembly arranged on the bearing plate, and the stop assembly includes: A stop bump, movably arranged, on its moving stroke, the stop bump has a stop position and an avoidance position, for respectively stopping the steel box girder segments in the first direction when the conveying chain plate conveys the steel box girder segments, and avoiding the steel box girder segments when the conveying chain plate conveys the steel box girder segments to the water entry position; and A stop driving part, movably arranged and drivingly connected to the stop bump, for driving the stop bump to switch between the stop position and the avoidance position.

2. The self-floating transportation system for steel box girder segments according to claim 1, wherein The self-floating transportation system for steel box girder segments further includes a winch, the winch is used to be arranged on the side of the base plate facing away from the waterway, and the towing rope of the winch is used to tow the steel box girder segments.

3. The self-floating transportation system for steel box girder segments according to claim 1, wherein The conveying assembly further includes: A conveying driving motor, arranged on the base plate, the conveying driving motor having a conveying output shaft; and A roller assembly, including a driving wheel and a driven wheel respectively arranged on both sides of the base plate in the first direction, the driving wheel being drivingly connected to the conveying output shaft and capable of coaxial rotation with the conveying output shaft; Wherein, the conveying chain plate is arranged between the driving wheel and the driven wheel.

4. The self-floating transportation system for steel box girder segments according to claim 1, wherein, The pushing mechanism further includes: A pusher support, arranged on the base plate and straddling above the conveying chain plate, the pusher support being movably arranged along the first direction; and A hydraulic cylinder, the cylinder body of the hydraulic cylinder being arranged on the base plate, the piston rod of the hydraulic cylinder being arranged along the first direction, and its free end being connected to the pusher support; Wherein, the pusher is arranged on the pusher support.

5. The self-floating transportation system for steel box girder segments according to claim 1, wherein The clamping structure includes: A movable rod, having an installation end and a connection end arranged oppositely, the installation end being movably arranged at the tail of the power boat, so that the connection end can approach and move away from the power boat; The jaw is provided at the connection end. The jaw includes two jaw rods arranged oppositely, and a clamping gap for accommodating the side wing of the steel box girder segment is defined between the two jaw rods. The two jaw rods can move relative to each other to adjust the size of the clamping gap; and, A plurality of electromagnets are respectively arranged on two opposite surfaces of the two jaw rods; Wherein, the clamping part includes the jaw.

6. The self-floating transportation system for steel box girder segments according to claim 1, wherein, The self-floating transportation system of the steel box girder segment further includes a connecting cable. One end of the connecting cable is fixed to the tail of the power boat, and the other end of the connecting cable is used to connect the side wing hanger of the steel box girder segment.

7. The self-floating transportation system for steel box girder segments according to claim 1, wherein, The self-floating transportation system of the steel box girder segment further includes an angle sensor for detecting the water entry deflection angle of the steel box girder segment; The self-floating transportation system of the steel box girder segment further includes an adjusting assembly. The adjusting assembly includes: An adjusting pipe fitting, which includes a first pipe section, a second pipe section and a third pipe section connected in communication. The first pipe section and the third pipe section are used to be arranged on two opposite side wings of the steel box girder segment and are arranged corresponding to the middle part of the steel box girder segment. The second pipe section is arranged on the top of the steel box girder segment, and a filler is arranged in the second pipe section; A valve body structure, which includes a first valve body and a second valve body. The first valve body is arranged at the connection of the first pipe section and the second pipe section, and the second valve body is arranged at the connection of the third pipe section and the second pipe section. The first valve body and the second valve body are electrically connected to the angle sensor; and, A push plate structure is movably arranged in the second pipe section for pushing the filler from the second pipe section to the first pipe section or the third pipe section correspondingly.

8. The self-floating transportation system for steel box girder segments according to claim 7, wherein The push plate structure includes two push plates arranged in the second pipe section, and the two push plates can move in opposite directions; The adjusting assembly further includes two electric push rods arranged between the two push plates. The two push rods of the two electric push rods are arranged in opposite directions to respectively drive the push plates connected to the corresponding sides.

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