Load transportation device

Abstract

The utility model provides a load-carrying transportation device, which relates to the technical field of water transportation hoisting equipment, is used for a bridge crane, and comprises a bearing frame, one end of the bearing frame is located on the shore, the other end of the bearing frame is located above the water surface, and a heavy machine track and a light machine track are arranged on the bearing frame. And the heavy machine track and the light machine track are arranged up and down so as to enable the transportation paths to be consistent. A heavy machine rail and a light machine rail are arranged on a bearing frame crossing a shoreside and a water surface up and down, so that the transportation paths of two cranes with different magnitudes are consistent. In the cargo hoisting process, a large-tonnage crane or a small-tonnage crane can be selected to be used according to the weight and the size of cargoes, so that energy is saved on the basis of ensuring the transportation capacity. And the large-tonnage crane and the small-tonnage crane can be used for transporting and hoisting cargoes together, and the transportation capacity and the transportation efficiency are improved through cooperation of the cranes of different magnitudes.

Description

Technical Field

[0001] This utility model relates to the technical field of water transport hoisting equipment, and more specifically, to a heavy-duty transport device. Background Technology

[0002] Cargo terminals need to lift and transfer goods of various sizes between ships and the shore every day. The current transportation method is to set up tracks on the shore for cranes to travel back and forth between ships and the shore.

[0003] Because the tonnage and size of goods vary greatly, using small-tonnage cranes will result in insufficient transport capacity, while using large-tonnage cranes will lead to resource waste and underutilization of resources when transporting small items. Furthermore, the continuous operation of large-tonnage cranes will also result in heavy energy consumption. Utility Model Content

[0004] The problem solved by this invention is how to enable cranes of different sizes to work together in transportation, thereby improving transportation efficiency.

[0005] To solve the above problems, this utility model provides a heavy-duty transportation device.

[0006] Firstly, this utility model provides a heavy-duty transport device, which adopts the following technical solution:

[0007] A heavy-duty transport device for a bridge crane includes a load-bearing frame, one end of which is located on the bank and the other end is located above the water surface. The load-bearing frame is provided with a heavy-duty track and a light-duty track, which are arranged vertically to make the transport path consistent.

[0008] The beneficial effects of this invention are as follows: By using a heavy-duty crane track and a light-duty crane track, arranged in an up-down configuration on a load-bearing frame spanning between the shore and the water, the transport paths of two cranes of different weight classes are essentially overlapped. During the lifting process, a large-tonnage crane or a small-tonnage crane can be selected based on the weight and size of the cargo, thereby saving energy while ensuring transport capacity. Moreover, when the weight of the cargo exceeds the weight limit of the large-tonnage crane, both the large-tonnage crane and the small-tonnage crane can be used simultaneously. Since their transport paths overlap, the two cranes can slide synchronously along the transport path, cooperating and improving the equipment's transport capacity and efficiency.

[0009] Optionally, the load-bearing frame is a multi-frame structure, including legs, a lower frame, straight web members, and an upper frame. The legs are used to support the foundation and the lower frame. The lower frame includes a main track beam and an edge sealing beam. The main track beam is used to install the heavy-duty machine track and the light-duty machine track. The main track beam and the edge sealing beam are joined end to end to form a transport space. The straight web members are used to connect the lower frame and the upper frame. The upper frame includes upper longitudinal beams and upper transverse beams. The upper longitudinal beams are parallel to the main track beams, and multiple upper transverse beams are arranged at intervals along the length of the upper longitudinal beams.

[0010] Optionally, the main track beam is a box-section beam, the heavy motorcycle track is fixedly connected to the upper edge of the main track beam near the interior of the transport space, and the light motorcycle track is located at the lower part of the side of the heavy motorcycle track facing the interior of the transport space and is fixedly connected to the main track beam.

[0011] Optionally, a support beam is fixedly connected to the main track beam, and the light machinery track is fixedly connected to the top of the support beam.

[0012] Optionally, both the main track beam and the support beam are supported on the legs, and the width of the support legs is not less than the sum of the widths of the main track beam and the support beam.

[0013] Optionally, a transfer beam is fixedly connected to the side of the main track beam away from the transport space, and the transfer beam is used to support the straight web member.

[0014] Optionally, both ends of the main track beam are equipped with wheel stops.

[0015] Optionally, the load-bearing frame further includes diagonal bracing, with both ends of the diagonal bracing fixedly connected to the lower frame and the upper frame, respectively.

[0016] Optionally, the end of the main track beam closest to the water surface extends outward to form a cantilever section.

[0017] Optionally, the outriggers are arranged in multiple rows from near to far from the shore. The outriggers include side legs and middle legs. The bottom of the side legs is provided with a hinge support, and the middle legs are configured to be fixedly connected to the foundation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the load-bearing transportation device according to an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the assembly of the load-bearing transport device and the crane according to an embodiment of the present utility model.

[0020] Figure 3 This is a detailed cross-sectional view of the main beam of the track in an embodiment of this utility model.

[0021] Figure 4 This is a side view of the load-bearing transport device according to an embodiment of the present utility model.

[0022] Figure 5 for Figure 4 A magnified view of part A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Large-tonnage crane; 20. Small-tonnage crane; 1. Load-bearing frame; 11. Outriggers; 111. Side legs; 112. Middle legs; 12. Lower frame; 121. Main track beam; 1211. Inner wall; 1212. Outer wall; 1213. Top wall; 1214. Bottom wall; 1215. Cantilever section; 1216. Internal bracing; 122. Edge sealing beam; 13. Straight web member; 14. Upper frame; 141. Upper longitudinal beam; 142. Upper transverse beam; 15. Diagonal web member; 16. Tie beam; 17. Support beam; 18. Transfer beam; 19. T-beam; 2. Heavy-duty crane track; 3. Light-duty crane track; 4. Transport space; 5. Vehicle stop; 51. Upper stop; 52. Lower stop; 6. Hinge support. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0026] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] This utility model provides a heavy-duty transportation device.

[0030] Reference Figure 1 , Figure 2 This utility model provides a heavy-duty transport device for a bridge crane, including a load-bearing frame 1. One end of the load-bearing frame 1 is located on the shore and the other end is located above the water surface. The load-bearing frame 1 is provided with a heavy-duty track 2 and a light-duty track 3. The heavy-duty track 2 and the light-duty track 3 are arranged vertically to make the transport path consistent.

[0031] Specifically, the load-bearing frame 1 spans across the water, extending horizontally from the shore into the water to facilitate unloading by ships. The load-bearing frame 1 is a high-strength, high-load-bearing steel structure. Multiple sets of piers are installed along the length of the load-bearing frame 1 (X-axis direction in the diagram), serving as the foundation for the load-bearing frame 1, with the bottom of the load-bearing frame 1 connected to the pier foundations. Heavy-duty crane rails 2 and light-duty crane rails 3 respectively supply large-tonnage cranes 10 and small-tonnage cranes 20 for transporting goods between the shore and the ship. The heavy-duty crane rails 2 and light-duty crane rails 3 are arranged vertically, not horizontally, so that the transport paths of the large-tonnage cranes 10 and small-tonnage cranes 20 largely overlap, allowing cranes of different sizes to operate simultaneously on the same transport path. During the hoisting process, appropriate cranes can be matched according to the weight and size of the goods. Large-tonnage cranes can be used to lift large quantities of goods, while small-tonnage cranes can be used to lift small quantities of goods. This allows for more rational allocation of resources, thereby achieving the goals of saving energy and improving efficiency while ensuring transport capacity.

[0032] Moreover, when the weight of the goods exceeds the weight limit of the large-tonnage crane 10, the large-tonnage crane 10 and the small-tonnage crane 20 can be used at the same time. Since the transportation paths of the two cranes overlap, the two cranes can slide synchronously along the transportation path, thereby improving the carrying capacity of the equipment through coordinated cooperation.

[0033] In this embodiment, the large-tonnage crane 10 is a thousand-ton bridge crane, and the small-tonnage crane 20 is a hundred-ton bridge crane.

[0034] Reference Figure 1 Optionally, the load-bearing frame 1 is a multi-frame structure, including legs 11, a lower frame 12, straight web members 13, and an upper frame 14. The legs 11 are used to support the foundation and the lower frame 12. The lower frame 12 includes a main track beam 121 and an edge sealing beam 122. The main track beam 121 is used to install the heavy machinery track 2 and the light machinery track 3. The main track beam 121 and the edge sealing beam 122 are joined end to end to form a transport space 4. The straight web members 13 are used to connect the lower frame 12 and the upper frame 14. The upper frame 14 includes an upper longitudinal beam 141 and an upper transverse beam 142. The upper longitudinal beam 141 is parallel to the main track beam 121, and multiple upper transverse beams 142 are arranged at intervals along the length of the upper longitudinal beam 141.

[0035] Specifically, both the heavy-duty track 2 and the light-duty track 3 are mounted on the main track beam 121. To provide a transport space 4 for the crane to slide, the lower frame 12 consists of only two main track beams 121 and end-sealing beams 122. To reduce the span and improve structural stability and load-bearing capacity, multiple sets of support legs 11 are arranged in pairs along the length of the main track beam 121, dividing the main track beam 121 into multiple spans. According to the mechanical characteristics of the frame structure, the arrangement of the transport space 4 results in the lower frame 12 lacking secondary beams, which will adversely affect the structural stability. To compensate for this problem, an upper frame 14 is further provided. The upper frame 14, composed of multiple upper horizontal beams 142 and two upper longitudinal beams 141, is welded and fixed to the main track beams 121 of the lower frame 12 by straight web members 13. Since the upper frame 14 does not bear load, the number of components can be increased by reducing the cross-sectional dimensions of the straight web members 13, the upper longitudinal beams 141 and the upper transverse beams 142 to improve the lateral stiffness of the structure, thereby making the load-bearing frame 1 more stable.

[0036] In this embodiment, there are four sets of support legs 11. The entire load-bearing frame 1 is a steel truss structure, and the intersecting parts of the components are fixed by welding or bolts. The lower frame 12 is a three-span structure, and the upper frame 14 is a six-span structure. There are seven sets of straight web members 13, arranged in pairs. In other embodiments, the number of spans and the length of each span of the load-bearing frame 1 can be reasonably selected according to actual needs and site conditions.

[0037] Optionally, the load-bearing frame 1 further includes a diagonal brace 15, the two ends of which are fixedly connected to the lower frame 12 and the upper frame 14, respectively.

[0038] Specifically, the diagonal web member 15 is supported between two adjacent straight web members 13. The upper end of the diagonal web member 15 is fixedly connected to the upper end of the straight web member 13 and the upper longitudinal beam 141 through a connecting plate, and the lower end of the diagonal web member 15 is fixedly connected to the lower end of the straight web member 13 and the main track beam 121 through a connecting plate.

[0039] Optionally, the end of the main track beam 121 near the water surface extends outward to form a cantilever section 1215.

[0040] Specifically, since cargo ships with different load capacities have different drafts, the end of the main track beam 121 that extends into the water surface is extended outward so that the crane can get closer to the center of the water surface, making it easier for cargo ships with deeper drafts to load and unload cargo that cannot get close to the shore.

[0041] In this embodiment, the edge sealing beam 122 is located at the end of the cantilever section 1215 of the main track beam 121, which can improve the integrity of the cantilever section 1215. Alternatively, the load-bearing capacity of the cantilever section 1215 can be further improved by setting a tie beam 16 between the end of the cantilever section 1215 and the upper frame 14.

[0042] Reference Figure 3 Optionally, the main track beam 121 is a box-section beam, the heavy motorcycle track 2 is fixedly connected to the upper edge of the main track beam 121 near the interior of the transport space 4, and the light motorcycle track 3 is located at the lower part of the side of the heavy motorcycle track 2 facing the interior of the transport space 4 and is fixedly connected to the main track beam 121.

[0043] Specifically, compared to steel beams with other cross-sectional forms such as I-beams and C-beams, box-section beams are closed on all four sides, offering the advantage of high load-bearing capacity. Furthermore, since the main track beam 121 is the core component of the load-bearing frame 1, in addition to providing support for the heavy-duty track 2 and the light-duty track 3, it also needs to be connected and fixed to many other components inside the load-bearing frame 1. Box-section beams have the advantages of a smooth outer surface and uniform load-bearing capacity in all directions, facilitating connection with components in different orientations. Considering the load-bearing requirements and the characteristics of the beam cross-section, the heavy-duty track 2 bears a greater load than the light-duty track 3, as it needs to support the operation of a large-tonnage crane 10. Therefore, installing the heavy-duty crane track 2 on the top of the main track beam 121 can increase the effective calculated height of the beam section, make the stress on the main track beam 121 more reasonable, and help improve the reliability of the main track beam 121 and reduce its self-weight; installing the light-duty crane track 3 at the bottom of the main track beam 121 can keep it as far away from the heavy-duty crane track 2 as possible, avoiding friction and collision between the large-tonnage crane 10 and the small-tonnage crane 20 during operation.

[0044] In this embodiment, the four sides of the box-section beam are divided into an inner wall 1211, an outer wall 1212, a top wall 1213, and a bottom wall 1214 based on their relative position to the transport space 4. The main track beam 121 is hollow inside, and a triangular inner brace 1216 is provided between the top wall 1213, the inner wall 1211, and the outer wall 1212. Both the heavy-duty track 2 and the light-duty track 3 are steel rails. The intersection of the top wall 1213 and the inner wall 1211 is connected and fixed by a T-beam 19. The top wall 1213 and the inner wall 1211 are respectively welded and fixed to one flange of the T-beam 19, and the heavy-duty track 2 is welded and fixed to the top surface of the T-beam 19. The main track beam 121, edge sealing beam 122, upper longitudinal beam 141, and lower transverse beam are all box-section beams. The steel components are prefabricated in the factory and then assembled and fixed on site. Moreover, the individual box-section components are lightweight, making transportation and hoisting convenient, and easy to install on site, which can effectively improve the construction speed.

[0045] Optionally, a support beam 17 is fixedly connected to the main track beam 121, and the light machinery track 3 is fixedly connected to the top of the support beam 17.

[0046] Specifically, since the load on the light machinery track 3 is in the direction of gravity, which is the negative direction of the Z-axis in the figure, the support beam 17 installed at the bottom of the light machinery track 3 can provide sufficient support in the Z-axis direction to improve the safety and reliability of the light machinery track 3.

[0047] Optionally, both the main track beam 121 and the support beam 17 are supported on the support leg 11, and the width of the support leg 11 is not less than the sum of the widths of the main track beam 121 and the support beam 17.

[0048] Specifically, supporting both the main track beam 121 and the support beam 17 on the support leg 11 can prevent the bottom of the support beam 17 from being suspended, improve the stress relationship, increase the load-bearing capacity of the support beam 17, thereby making it easier to control the cross-sectional size of the support beam 17, reduce the self-weight of the structure, and further improve the overall stability of the load-bearing frame 1.

[0049] In this embodiment, the support beam 17 adopts a right-angled trapezoidal cross-section beam, and the light machinery track 3 is fixedly installed on the top of the support beam 17 near the transport space 4. With the bottom surface of the support beam 17 facing upward, the bottom surface of the light machinery track 3 can be completely fitted with the support beam 17. The right-angled waist of the support beam 17 is welded and fixed to the inner wall 1211 of the main track beam 121, and the top surface is welded and fixed to the top surface of the support leg 11, which enhances the connection strength. The bottom surface facing downward can also control the width of the support leg 11, thereby reducing its weight.

[0050] Optionally, a conversion beam 18 is fixedly connected to the side of the main track beam 121 away from the transport space 4, and the conversion beam 18 is used to support the straight web member 13.

[0051] Specifically, since both the light machinery track 3 and the heavy machinery track 2 are installed on one side of the inner wall 1211 of the main track beam 121, the forces on both sides of the box-section beam are extremely unbalanced, which can easily lead to safety problems during later use. In addition, the space above the top wall 1213 of the main track beam 121 needs to be reserved for the installation of a large-tonnage crane 10, making it inconvenient to directly install the straight web member 13 on the top wall 1213 of the main track beam 121. Therefore, a transfer beam 18 is set on the outer wall 1212 of the main track beam 121. The transfer beam 18 directly supports the straight web member 13 and transfers the load above to the main track beam 121, achieving two goals at once, while simultaneously meeting the requirements of load balancing and reserving installation space.

[0052] Reference Figure 4 , Figure 5 Optionally, both ends of the main track beam 121 are provided with stoppers 5.

[0053] Specifically, the stop is located at both ends of the heavy machinery track 2 and the light machinery track 3 to limit the movement of the crane.

[0054] In this embodiment, all four stops are perpendicular to the main track beam 121. The upper stop 51, which limits the heavy-duty crane 10, is fixedly installed on the top surface of the main track beam 121, and its installation height is flush with that of the heavy machinery track 2. The lower stop 52, which limits the small-duty crane 20, is fixedly installed below the inner wall 1211 of the main track beam 121, and its installation height is flush with that of the light machinery track 3.

[0055] Reference Figure 4Optionally, the support legs 11 are arranged in multiple rows from near to far from the shore. The support legs 11 include side legs 111 and middle legs 112. The bottom of the side legs 111 is provided with a hinge support 6, and the middle legs 112 are configured to be fixedly connected to the foundation.

[0056] Specifically, the steel structure's side legs 111 and middle legs 112 are connected to the concrete pier foundation in different ways. The side legs 111, located at the ends, are subjected to unbalanced forces. The installation of hinged supports 6 allows the side legs 111 to rotate slightly when subjected to upper loads, thereby reducing the transmission of bending moments and making the structure more stable. The foundation at the bottom of the middle legs 112 has an embedded plate, and the middle legs 112 are welded and fixed to the embedded plate.

[0057] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A load-bearing transport device, characterized in that, For use in bridge cranes, including a load-bearing frame (1), one end of which is located on the bank and the other end is located above the water surface. The load-bearing frame (1) is provided with a heavy-duty track (2) and a light-duty track (3), which are arranged vertically to make the transport path consistent.

2. The load-bearing transport device according to claim 1, characterized in that, The load-bearing frame (1) is a multi-frame structure, including legs (11), a lower frame (12), straight web members (13), and an upper frame (14). The legs (11) are used to support the foundation and the lower frame (12). The lower frame (12) includes a main track beam (121) and an edge sealing beam (122). The main track beam (121) is used to install the heavy machinery track (2) and the light machinery track (3). The upper frame (14) is formed by connecting the lower frame (12) and the upper frame (14) end to end. The upper frame (14) includes an upper longitudinal beam (141) and an upper transverse beam (142). The upper longitudinal beam (141) is parallel to the main track beam (121). Multiple upper transverse beams (142) are arranged at intervals along the length of the upper longitudinal beam (141).

3. The load-bearing transport device according to claim 2, characterized in that, The main track beam (121) is a box-section beam. The heavy motorcycle track (2) is fixedly connected to the upper edge of the main track beam (121) near the interior of the transport space (4). The light motorcycle track (3) is located on the lower part of the side of the heavy motorcycle track (2) facing the interior of the transport space (4) and is fixedly connected to the main track beam (121).

4. The load-bearing transport device according to claim 3, characterized in that, A support beam (17) is fixedly connected to the main track beam (121), and the light machinery track (3) is fixedly connected to the top of the support beam (17).

5. The load-carrying transport device according to claim 4, characterized in that, The main track beam (121) and the support beam (17) are both supported on the support leg (11), and the width of the support leg (11) is not less than the sum of the widths of the main track beam (121) and the support beam (17).

6. The load-bearing transport device according to claim 3, characterized in that, A conversion beam (18) is fixedly connected to the side of the main track beam (121) away from the transport space (4), and the conversion beam (18) is used to support the straight web member (13).

7. The load-bearing transport device according to claim 2, characterized in that, Both ends of the main track beam (121) are equipped with wheel stops (5).

8. The load-bearing transport device according to claim 2, characterized in that, The load-bearing frame (1) also includes a diagonal brace (15), the two ends of which are fixedly connected to the lower frame (12) and the upper frame (14) respectively.

9. The load-carrying transport device according to claim 2, characterized in that, The main track beam (121) extends outward from the end near the water surface to form a cantilever section (1215).

10. The load-bearing transport device according to claim 2, characterized in that, The support legs (11) are arranged in multiple rows from near to far from the shore. The support legs (11) include side legs (111) and middle legs (112). The bottom of the side legs (111) is provided with a hinge support (6). The middle legs (112) are configured to be fixedly connected to the foundation.

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