Combined all-around cargo hoisting and box loading tool

Abstract

The application discloses a combined omnibearing cargo hoisting into-box tool, which comprises a hoisting beam and a reinforcing plate, a plurality of hoisting beams are arranged by being spliced through combined short sections, rails, loading lifting lugs and transfer lifting lugs are respectively arranged on the hoisting beams, the loading lifting lugs and the transfer lifting lugs are suitable for being suspendedly connected with a crane hook head, a pulley hoisting assembly is slidably connected in the rail, and the pulley hoisting assembly is used for suspending goods; the reinforcing plate is arranged below the combined short section, an upper surface of the reinforcing plate and a lower surface of the combined short section are arranged with intervals, the upper surface of the reinforcing plate is provided with a plurality of central support columns, upper surfaces of the central support columns and the lower surface of the combined short section and the lower surface of the hoisting beam are all arranged with intervals, springs are arranged on the central support columns in a sleeved mode, and upper ends of the springs are higher than the upper surfaces of the central support columns. The application can efficiently and accurately place various tonnage or special-shaped goods at any position of a general container, meanwhile, the frequency of personnel entering a limited space for operation is reduced, and the safety and reliability of operation are improved.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and in particular to a combined omnidirectional cargo hoisting and container loading tooling. Background Technology

[0002] In large freight containers, especially when loading cargo into them under space constraints at sea, large loading tools are required to assist in loading and unloading. However, there is a lack of large horizontal displacement actuators. Personnel can only assist in loading cargo by using diagonal hoisting ropes inside the container, which poses significant safety risks, mainly in the following three aspects: 1) Lack of horizontal displacement actuator, resulting in missing longitudinal horizontal traction degree of freedom. The crane only provides Z-axis (lifting) and X / Y-axis (luffing / slewing) movement, lacking a horizontal traction / pushing actuator in the container's longitudinal direction. The marine environment precludes the use of forklifts or large / heavy equipment like conveyors. Furthermore, the crane's spreader cannot provide continuous longitudinal horizontal displacement freedom within the confined space inside the container.

[0003] 2) Mismatch in horizontal transport capacity, resulting in interruption of the horizontal placement process within the container. The vertical lifting capacity is not matched with the horizontal displacement capacity. After the vertical hoisting is in place, the horizontal sliding / traction process cannot be connected, causing the container insertion operation to stop.

[0004] 3) Lack of dedicated translation tools / attachments leads to excessively high frequency of manual intervention and a sharp increase in operational risks. The lack of specialized auxiliary tools for "horizontal positioning of heavy objects in confined spaces" and the absence of machinery and materials forced the site to adopt a high-risk operation method of "manual labor + ropes," which significantly increased the time spent on ineffective assistance, resulting in low overall loading and unloading efficiency and increased risks to personnel.

[0005] Therefore, a combined all-around cargo hoisting and container loading tool has been developed, which has enabled efficient, convenient and safe cargo loading and unloading operations, and has become the key to solving this operational bottleneck. Summary of the Invention

[0006] The purpose of this invention is to provide a combined, omnidirectional cargo lifting and container loading fixture. This device achieves a closed-loop process for vertically lifting and horizontally positioning heavy objects within a longitudinally deep container. While completely eliminating the inherent safety risks of personnel entering the container at an angle, it significantly improves the operational efficiency of maritime containerized cargo supply.

[0007] The present invention solves its problems through the following technical solution: A combined omnidirectional cargo lifting and container loading fixture, comprising: The lifting beam consists of multiple lifting beams assembled by combining short sections. Each lifting beam is equipped with a rail, a loading lug, and a transfer lug. The loading lug and transfer lug are suitable for suspending the crane hook. A pulley lifting assembly is slidably connected in the rail and is used to suspend the goods. A reinforcing plate is located below the combined short section. The upper surface of the reinforcing plate is spaced from the lower surface of the combined short section. Multiple central support columns are provided on the upper surface of the reinforcing plate. The upper surface of the central support columns is spaced from the lower surface of the combined short section and the lower surface of the lifting beam. A spring is fitted over the central support column, and the upper end of the spring extends above the upper surface of the central support column.

[0008] Optionally, among the plurality of central support columns, some central support columns are located below the combined short section, and other central support columns are located below the lifting beam. The height of the central support columns located below the combined short section is lower than the height of the central support columns located below the lifting beam.

[0009] Optionally, the spring has an indicator arrow at its axial center, the central support column has a zero mark at its axial center, and the central support column has a scale in its axial direction. The scale is used to indicate the spring deformation. In the free state of the spring, the indicator arrow points to the corresponding zero mark of the central support column.

[0010] Optionally, the two ends of the combined short section are provided with a first receiving groove corresponding to the end of the lifting beam. The cross-sectional shape of the first receiving groove is the same as the cross-sectional shape of the lifting beam. The combined short section is also provided with a first locking hole in the horizontal direction and a first locking hole in the vertical direction. The first locking hole communicates with the first receiving groove and is used to install a snap ring locking pin.

[0011] Optionally, the cross-section of the lifting beam is an "I" shaped steel structure; Optionally, a connecting bolt for threaded connection of the assembly short section is provided in the middle of the reinforcing plate, and the central support column and spring are symmetrically arranged with respect to the connecting bolt.

[0012] Optionally, the pulley hoisting assembly includes: The connecting ring is a concave steel structure, and a lifting lug for suspending goods is provided below the connecting ring; The pulley has a rolling bearing on its inner ring. The rolling bearing is installed inside the connecting ring by a mounting pin. The pulley rolls within the track of the lifting beam.

[0013] Optionally, it also includes: The lifting beam end cap has a second receiving groove corresponding to the unspliced ​​end of the lifting beam. The cross-sectional shape of the second receiving groove is the same as that of the lifting beam. The lifting beam end cap also has a second locking hole in the horizontal and vertical directions. The second locking hole is connected to the second receiving groove and is used to install a snap ring locking pin. The lifting eye shackle is detachably installed on the end cap of the lifting beam before it enters the box body; The counterweight water tank is connected to the lifting ring shackle, and the seed water tank is equipped with a drain outlet.

[0014] Optionally, the track is provided with multiple limiting screw holes on the side away from the lifting beam and not entering the box body. The limiting screw holes are used in conjunction with the check pin screw to limit the displacement of the pulley hoisting assembly.

[0015] Optionally, it also includes: Anti-tilting spring assembly: Each lifting beam is equipped with an anti-tilting spring assembly, which consists of multiple springs arranged vertically side by side.

[0016] Optionally, it also includes: A physical bubble level is installed on the suspension beam.

[0017] In summary, the technical effects and advantages of this invention are as follows: This application enables cargo of various tonnages or irregular shapes to be placed efficiently and accurately in any position on a general container using this lifting tool; at the same time, it reduces the frequency of personnel entering confined spaces for operation, thereby improving the safety and reliability of the operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a combined all-around cargo hoisting and box-loading tool according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a reinforcing plate according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a single lifting beam and a container according to an embodiment of the present invention; Figure 4 This is an exploded structural diagram of the pulley hoisting assembly and the end cap of the hoisting beam according to an embodiment of the present invention.

[0020] The components include: 1. Lifting beam; 2. Reinforcing plate; 3. Combined short section; 4. Loading lifting lug; 5. Transfer lifting lug; 6. Central support column; 7. Spring; 8. Connecting bolt; 9. Snap ring locking pin; 10. Connecting ring; 11. Pulley; 12. Lifting lug; 13. Rolling bearing; 14. Installation pin; 15. Lifting beam end cap; 16. Lifting ring shackle; 17. Counterweight water tank; 18. Limiting screw hole; 19. Check pin screw; 20. Anti-tilting spring assembly; 21. Box body; 22. Cargo; 23. Shackle pin. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0023] Currently, the most commonly used equipment and methods for loading and unloading cargo in rear-hinged containerized cargo containers are generally as follows: First, using heavy-duty winches or heavy-duty tractors to directly transfer cargo to the container; second, using large-tonnage heavy-duty forklifts to directly load and unload cargo via pallets; third, using mobile carts or conveyor belts, with ground transition tracks / thick steel plates / roadbed boxes as auxiliary tools, to transfer cargo into the container, but manual handling is still required inside the container to move it to the designated location. These methods are mainly because freight containers have horizontally opening doors at both ends, while cranes handle heavy loads with vertical vertical displacement, requiring specialized equipment to facilitate switching between these degrees of freedom. This process consumes a large amount of equipment and materials and involves a high degree of manual labor, especially during loading and unloading inside the container, which is highly dangerous and inefficient. After the implementation of this invention, not only can cargo of various tonnages or irregular shapes be placed anywhere within the container, but it also avoids secondary handling by personnel inside the container, resulting in a higher success rate for first-time placement and greatly improving overall work efficiency.

[0024] This embodiment proposes a combined omnidirectional cargo lifting and container loading fixture, such as... Figures 1-4As shown, the system includes a lifting beam 1 and a reinforcing plate 2. Multiple lifting beams 1 are spliced ​​together by combined short sections 3. Each lifting beam 1 is equipped with a track, a loading lug 4, and a transfer lug 5. The loading lug 4 and transfer lug 5 are suitable for the suspension connection of the crane hook. A pulley hoisting assembly is slidably connected in the track and is used to suspend the cargo 22. The reinforcing plate 2 is located below the combined short section 3. The upper surface of the reinforcing plate 2 is spaced from the lower surface of the combined short section 3. Multiple central support columns 6 are provided on the upper surface of the reinforcing plate 2. The upper surface of the central support columns 6 is spaced from the lower surface of the combined short section 3 and the lower surface of the lifting beam 1. A spring 7 is sleeved on the central support column 6. The upper end of the spring 7 is higher than the upper surface of the central support column 6.

[0025] In this embodiment, the cross-section of the lifting beam 1 is an "I" shaped steel structure. Four pairs of loading lugs 4 and one pair of transfer lugs 5 are welded to the upper surface of the lifting beam 1, suitable for connecting the crane hook to it. According to the international shipping standard (ISO standard), the external dimensions of a standard container are: length 13.716 meters × width 2.438 meters × height 2.896 meters. The lifting beam 1 is limited to a length of 3 meters, and this tooling assembly can use no more than 3 lifting beams 1. Therefore, the number of assembly sections 3 can be determined on-site based on the actual standard shipping container conditions, and then spliced ​​together. The upper part of the central support column 6 does not contact the assembly sections or the lifting beams, maintaining a distance of 0.5-1 cm.

[0026] Furthermore, among the multiple central support columns 6, a portion of the central support columns 6 are located below the combined short section 3, and another portion of the central support columns 6 are located below the lifting beam 1. The height of the central support columns 6 located below the combined short section 3 is lower than the height of the central support columns 6 located below the lifting beam 1.

[0027] Specifically, the spring 7 has an indicator arrow at its axial center, the central support column 6 has a zero mark at its axial center, and the central support column 6 has a scale in its axial direction. This scale is used to indicate the deformation of the spring 7. In the free state of the spring 7, the indicator arrow points to the corresponding zero mark of the central support column 6.

[0028] In this embodiment, the reinforcing plates 2 are arranged in pairs on both sides of the bottom of the combined short section 3. A high-strength connecting bolt 8 is installed in the middle of the reinforcing plate 2, connecting it to the combined short section 3 via threads. Three longitudinally arranged high-strength springs 7 are provided on the upper surface of the reinforcing plate 2, each spring 7 containing a central support column 6. An indicator arrow is located in the middle of each spring 7. The central support column 6 does not contact the bottom of the lifting beam 1 or the bottom of the combined short section 3. Under normal circumstances, the indicator arrow points to the zero mark on the central support column 6. When the indicator arrow on the spring 7 points to a mark on the central support column 6, it indicates that the two lifting beams 1 have deformed at both ends of the combined short section 3. The magnitude of the deformation of the three springs 7 determines whether to continue the lifting operation. When the bending of the two lifting beams 1 causes the springs 7 to continuously compress to a certain extent, the central support column 6 directly contacts the bottom of the lifting beam 1 and the bottom of the combined short section 3, achieving a triangular stable structure and preventing the two lifting beams 1 from continuing to deform beyond the lower threshold of the combined short section 3 and breaking.

[0029] Furthermore, the two ends of the combined short section 3 are provided with first receiving grooves corresponding to the ends of the lifting beam 1. The cross-sectional shape of the first receiving groove is the same as that of the lifting beam 1. The combined short section 3 is also provided with first locking holes in the horizontal and vertical directions. The first locking holes communicate with the first receiving grooves and are used to install the snap ring locking pin 9. In this embodiment, the first receiving groove inside the combined short section 3 is an "I" shaped groove, which can be fitted into the end of the lifting beam 1 and connected and fixed in the vertical and horizontal directions by the snap ring locking pin 9. The snap ring locking pin 9 is an existing structure, and its specific structure will not be described in detail.

[0030] Optionally, the reinforcing plate 2 is provided with a connecting bolt 8 for threaded connection of the assembly short section 3 in the middle, and the central support column 6 and the spring 7 are symmetrically arranged with respect to the connecting bolt 8.

[0031] Furthermore, the pulley hoisting assembly includes a connecting ring 10 and a pulley 11. The connecting ring 10 is a concave steel structure, and a lifting lug 12 for suspending the cargo 22 is provided below the connecting ring 10. The inner ring of the pulley 11 is provided with a rolling bearing 13, which is installed on the inner side of the connecting ring 10 by means of a mounting pin 14. The pulley 11 rolls in the track of the hoisting beam 1.

[0032] In this embodiment, the connecting ring 10 is a forged integral structure, the pulley hoisting assembly slides in the track of the hoisting beam 1, and the lower part is provided with a hoisting lug 12 to facilitate the horizontal displacement of the suspended cargo 22 inside the container.

[0033] Furthermore, this tooling also includes a lifting beam end cap 15, a lifting ring shackle 16, and a counterweight water tank 17. The lifting beam end cap 15 is provided with a second receiving groove corresponding to the unjoined end of the lifting beam 1. The cross-sectional shape of the second receiving groove is the same as the cross-sectional shape of the lifting beam 1. The lifting beam end cap 15 is also provided with a second locking hole in the horizontal and vertical directions. The second locking hole communicates with the second receiving groove and is used to install the snap ring locking pin 9. The lifting ring shackle 16 is detachably provided on the lifting beam end cap 15 at the end of the lifting beam 1 that does not enter the box 21. The counterweight water tank 17 is connected to the lifting ring shackle 16 and is provided with a drain outlet.

[0034] In this embodiment, the interior of the lifting beam end cap 15 is an "I"-shaped groove, with snap ring locking pins 9 offset in the horizontal and vertical directions. The lifting beam end cap 15 has a hole for the lifting ring shackle 16 to pass through, and the lifting beam end cap 15 and the lifting ring shackle 16 are connected by a shackle pin 23. The lifting beam end cap 15 prevents the pulley 11 from hitting the top or slipping off the track of the lifting beam 1 when the lifting beam 1 is severely unbalanced. The water level in the counterweight water tank 17 is adjusted in real time according to the actual weight of the cargo 22 to be loaded.

[0035] Preferably, the track has multiple limiting screw holes 18 on the side away from the lifting beam 1 and not entering the housing 21. The limiting screw holes 18 are used in conjunction with check pins 19 to limit the displacement of the pulley hoisting assembly. In this embodiment, the track of the lifting beam 1 has an average of 10 limiting screw holes 18 on each side near the pulley hoisting assembly end, which are used in conjunction with check pins 19. The check pins 19 are arranged in pairs in a horizontal straight line within the limiting screw holes 18 of the lifting beam 1, limiting the displacement of the pulley hoisting assembly. Their main function is to prevent the load from becoming unbalanced due to the sudden breakage of the lifting locks at both ends of the lifting beam 1, causing the tooling's gravitational potential energy to be released instantaneously, resulting in the lifting beam 1 bouncing up and down instantly and causing an accident.

[0036] Preferably, the tooling also includes an anti-tilting spring assembly 20, and each lifting beam 1 is provided with an anti-tilting spring assembly 20, which includes multiple springs arranged vertically side by side.

[0037] In this embodiment, the anti-tilting spring assembly 20 is installed at the end of each lifting beam 1 to prevent the end of the lifting beam 1 from "tilting" and causing an accident in the event of a sudden imbalance caused by the breakage of the lifting slings. To maximize the energy efficiency of the equipment, the springs in the anti-tilting spring assembly 20 are 10cm long, and the upper surface of the spring is kept 1-3cm away from the inner top of the container.

[0038] Optionally, it also includes a physical bubble level, which is mounted on the suspension beam 1.

[0039] In this embodiment, a lifting beam 1 has four pairs of loading lugs 4 and one pair of transfer lugs 5 arranged on one side of its upper end, and an anti-tilting spring assembly 20 is provided on the other side. The track below the lifting beam 1 has a limiting screw hole 18 on the side away from the counterweight water tank 17. Both ends of the lifting beam 1 have mounting holes for installing the combined short section 3 or the lifting beam end cap 15. Two sets of check pins 19 are symmetrically arranged in the limiting screw holes 18 of the lifting beam 1. The pulley lifting assembly is located between the check pins 19 and the lifting beam end cap 15. The pulley lifting assembly is responsible for suspending the load. The lifting ring shackle 16 is responsible for suspending the counterweight water tank 17. The combined short section 3, the lifting beam end cap 15 and the lifting beam 1 are connected and locked by the snap ring locking pin 9.

[0040] The working process of this embodiment is as follows: First, the crane performs a test lift of the load (cargo 22) to read the actual weight of the load, and simultaneously calculates the weight of the invention device and the weight of the configured water tank (the crane's safe lifting weight is 1.25 times the total weight of the load + container loading tooling + water tank); Second, the specifications of the shipping container are measured, especially the depth of the container body 21, to determine whether the lifting beam 1 needs to be disassembled or reassembled; Third, the invention tooling with different load specifications is selected, and the pulley lifting assembly is assembled. Next, slide pulley 11 into the track of lifting beam 1, then put the lifting beam end cap 15 onto one end of lifting beam 1, and then lock the lifting beam end cap 15 in the horizontal and vertical directions with snap ring locking pin 9; fourth, lift beam 1 horizontally by hooking the crane hook onto the transfer lug 5 at the upper end of lifting beam 1, insert the lifting ring shackle 16 into the insertion hole of the lifting ring shackle 16 at one end and hang the counterweight water tank 17, and lock the lifting beam end cap 15 at the other end, and hang the heavy object on the lifting lug 12 of the pulley lifting assembly. Fifth, slowly lift and test-lift the load. Adjust the hanging points of the lifting lugs 4 on the lifting beam 1 by adjusting the balance of the lifting beam 1. At the same time, slowly adjust the amount of water in the counterweight water tank 17, adding or unloading fresh water as needed. Sixth, according to the required position of the load inside the container and the axial and radial level of the lifting beam 1 indicated by the physical bubble level, adjust the position of the pulley lifting assembly outside the container, and limit the pulley 11 by the position of the check pin and top screw 19. Seventh, lift the assembly equipment and slowly move the load horizontally to the designated position of the shipping container. Then, slowly drain the water in the counterweight water tank 17 so that the load slowly descends to zero load inside the container. Eighth, after the load is placed in place, close the drain outlet of the water tank according to the distance between the anti-tilting spring assembly 20 and the inner top of the shipping container, remove the load lifting shackle, and separate the tooling and counterweight water tank 17 from it. Then, slowly move the crane hook horizontally to remove this tooling from the container body 21. The operation is complete.

[0041] In summary, this modular, all-around cargo lifting and container loading tool enables efficient, convenient, and safe horizontal loading and unloading of cargo into and out of shipping containers, completing horizontal transfer operations that traditional large machinery cannot perform.

[0042] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this invention only involve structures related to the embodiments disclosed in this invention, and other structures can refer to general designs. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0043] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined omnidirectional cargo lifting and box-loading fixture, characterized in that, include: The lifting beam consists of multiple lifting beams assembled by combining short sections. Each lifting beam is equipped with a rail, a loading lug, and a transfer lug. The loading lug and transfer lug are suitable for suspending the crane hook. A pulley lifting assembly is slidably connected in the rail and is used to suspend the goods. A reinforcing plate is located below the combined short section. The upper surface of the reinforcing plate is spaced from the lower surface of the combined short section. Multiple central support columns are provided on the upper surface of the reinforcing plate. The upper surface of the central support columns is spaced from the lower surface of the combined short section and the lower surface of the lifting beam. A spring is fitted over the central support column, and the upper end of the spring extends above the upper surface of the central support column.

2. The combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, Of the multiple central support columns, some are located below the combined short section, and others are located below the lifting beam. The height of the central support columns located below the combined short section is lower than the height of the central support columns located below the lifting beam.

3. The combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, The spring has an indicator arrow at its axial center, the central support column has a zero mark at its axial center, and the central support column has a scale in its axial direction. The scale is used to indicate the spring's deformation. In the free state of the spring, the indicator arrow points to the corresponding zero mark of the central support column.

4. The combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, The combined short section has a first receiving groove at both ends corresponding to the end of the lifting beam. The cross-sectional shape of the first receiving groove is the same as the cross-sectional shape of the lifting beam. The combined short section also has a first locking hole in the horizontal and vertical directions. The first locking hole communicates with the first receiving groove and is used to install a snap ring locking pin.

5. A combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, The cross-section of the lifting beam is an "I" shaped steel structure; And / or, the reinforcing plate is provided with a connecting bolt for threaded connection of the assembly short section in the middle, and the central support column and spring are symmetrically arranged with respect to the connecting bolt.

6. The combined omnidirectional cargo lifting and box-loading fixture according to claim 1, characterized in that, The pulley hoisting assembly includes: The connecting ring is a concave steel structure, and a lifting lug for suspending goods is provided below the connecting ring; The pulley has a rolling bearing on its inner ring. The rolling bearing is installed inside the connecting ring by a mounting pin. The pulley rolls within the track of the lifting beam.

7. The combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, Also includes: The lifting beam end cap has a second receiving groove corresponding to the unspliced ​​end of the lifting beam. The cross-sectional shape of the second receiving groove is the same as that of the lifting beam. The lifting beam end cap also has a second locking hole in the horizontal and vertical directions. The second locking hole is connected to the second receiving groove and is used to install a snap ring locking pin. The lifting eye shackle is detachably installed on the end cap of the lifting beam before it enters the box body; The counterweight water tank is connected to the lifting ring shackle, and the seed water tank is equipped with a drain outlet.

8. The combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, Multiple limiting screw holes are provided on the side of the track away from the lifting beam and not entering the box. The limiting screw holes are used in conjunction with the anti-return pin screw to limit the displacement of the pulley hoisting assembly.

9. A combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, Also includes: Anti-tilting spring assembly: Each lifting beam is equipped with an anti-tilting spring assembly, which consists of multiple springs arranged vertically side by side.

10. A combined omnidirectional cargo hoisting and box-loading fixture according to claim 1, characterized in that, Also includes: A physical bubble level is installed on the suspension beam.

Images