A hoisting device for port loading and unloading

Abstract

The application relates to the technical field of port cargo loading and unloading, and particularly discloses a hoisting device for port loading and unloading, which comprises a portal crane support, a mounting disc is fixedly installed at the top middle of the portal crane support, and a first motor is fixedly installed at the top middle of the mounting disc. The device can clamp both sides, the front face and the back face of the cargo, and the overall clamping stability is relatively high. The device has the capability of clamping the cargo in multiple directions, can be applied to cargos of various shapes and sizes, improves the flexibility and applicability of clamping, can more stably fix the cargo through multi-directional clamping, reduces the risk of cargo sliding or tilting during loading and unloading, improves the safety of loading and unloading operation, the multi-directional clamping design can more evenly distribute the weight of the cargo, reduces the possibility of the cargo being damaged during loading and unloading, and protects the integrity of the cargo.

Description

Technical Field

[0001] This invention relates to the field of port cargo handling technology, and in particular to a hoisting device for port cargo handling. Background Technology

[0002] Port lifting equipment typically includes cranes, gantry cranes, and container cranes. These lifting devices are used to transport goods from land to ships or unload goods from ships to land, enabling rapid loading and unloading. Gantry cranes have a horizontal structure, allowing them to move and transport goods horizontally. Existing port container cranes only fix the upper part of the container when lifting it, causing the suspended container to sway to some extent during the movement of the gantry crane. If the suspension is not strong, the container may fall, which is extremely unsafe. Furthermore, most cranes cannot lift containers of different sizes.

[0003] Chinese patent publication number CN216583889U discloses a container crane for ports, which includes a transverse load-bearing frame. A transverse slider is located at the upper part of the transverse load-bearing frame, and a lifting wire rope is located at the bottom of the transverse slider. A lifting fixing frame is located at the lower part of the lifting wire rope. Clamping assemblies are fixedly connected to both sides of the bottom of the lifting fixing frame. These clamping assemblies can clamp containers of different sizes. Support rod assemblies are fixedly connected to one outer wall of each of the two clamping assemblies, providing reinforcement during container lifting. This invention, through the coordinated operation of the clamping assemblies, load-bearing rods, and rubber gaskets, securely lifts containers, greatly improving the safety factor during container lifting and enabling the lifting of containers of different sizes.

[0004] While the aforementioned device can assist in the movement of containers, it still has certain shortcomings. Firstly, it can only assist in the lateral movement of goods. When goods need to be moved in different directions, the gantry crane obviously cannot handle the situation. Therefore, the device is not convenient for flexibly moving goods in different directions. Secondly, during the movement of goods, the container can only be clamped and positioned on both sides. Since containers are generally rectangular with four exterior faces, only two sides can be clamped during the movement. The exposed sides obviously cannot be clamped. If there is any deviation or tilting during the movement, the goods can easily slip out of the lifting frame. It is clear that the lifting equipment has certain defects and needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a hoisting device for port loading and unloading, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a lifting device for port loading and unloading, including a gantry crane support, an installation plate fixedly installed at the top center of the gantry crane support, a first motor fixedly installed at the top center of the installation plate, an adjustment mechanism fixedly installed at the bottom output end of the first motor through the installation plate, an electric hoist fixedly installed at the bottom of the adjustment mechanism, a lifting steel cable wound inside the electric hoist, and a positioning mechanism fixedly installed at the bottom of the lifting steel cable;

[0007] The adjustment mechanism includes a top rail and a drive assembly. The top rail is fixedly installed at the bottom output end of the first motor. A sliding block is slidably connected to the inner side of the top rail. The bottom of the sliding block is fixedly connected to the middle of the top of the electric hoist. The drive assembly is fixedly installed in the middle of one side of the electric hoist body. By setting the adjustment mechanism, the top rail can be driven to rotate by the first motor during use, and the top rail can be flexibly adjusted to rotate laterally. This makes it convenient to adjust the top rail to face different directions, facilitating the transport of goods in different directions. The drive assembly, in conjunction with the sliding block, can drive the sliding block to slide, facilitating flexible lateral transport of goods and improving the convenience of loading, unloading, and transporting goods.

[0008] Furthermore, a support plate is fixedly installed on the top of the top rail, and sliders are fixedly installed at both ends of the top of the support plate. An annular support groove is opened at the bottom of the mounting plate, and the sliders are slidably connected to the inner side of the annular support groove. The sliders and annular support grooves on the support plate can help support and reinforce the top rail.

[0009] Furthermore, the drive assembly includes a mounting frame and a rack. The mounting frame is fixedly installed on the middle of one side of the electric hoist. A second motor is fixedly installed on the middle of the outer side of the mounting frame. A transmission gear is fixedly installed through the mounting frame at the output end of the second motor. The rack is fixedly installed on the bottom side of the top rail. The transmission gear and the rack are meshed together. By setting up the drive assembly, the second motor can drive the transmission gear to rotate during use, which in turn drives the sliding block to slide through the rack, facilitating the movement of goods.

[0010] Furthermore, the overall cross-sectional shape of the annular support groove and the slider is convex, and mounting plates are fixedly installed on both sides of the bottom of the gantry crane support. The convex annular support groove and slider can improve their interlocking ability and stability.

[0011] Furthermore, mounting holes are provided at all four corners of the mounting plate, and support plates are fixedly installed at both ends of the top of the mounting plate. The inner ends of the support plates are fixedly connected to both sides of the gantry crane support. The side of the support plate is shaped as a right-angled triangle and is provided with mounting holes. The device can be installed and fixed by bolts through the mounting holes, which facilitates the fixing of the device.

[0012] Furthermore, the gantry crane support is fixedly installed at equal intervals on both the outer and inner sides. The overall cross-sectional shape of the support frame is an isosceles trapezoid. The support frame can reinforce the gantry crane support and improve its stability.

[0013] Furthermore, the positioning mechanism includes a fixing block, which is fixedly installed at the bottom of the suspending steel cable. A positioning seat is fixedly installed at the bottom of the fixing block. Mounting grooves are provided at each of the four corners of the positioning seat. Guide wheels are rotatably connected to the inner sides of each mounting groove. A connecting shaft is fixedly installed between the inner sides of the guide wheels, and the connecting shaft is rotatably connected to both ends of the positioning seat. A power assembly is fixedly installed at the top of the positioning seat, and a clamping assembly is fixedly installed at the bottom of the positioning seat. A side clamping frame is fixedly installed at the bottom of the guide wheels. By setting up the positioning mechanism, during use, the power assembly can drive the guide wheels to rotate, and the rotation of the guide wheels can drive the side clamping frame to position the goods. The clamping assembly can clamp the other two sides of the goods, improving the stability of goods transportation.

[0014] Furthermore, both the side clamping frame and the front clamping frame have an L-shaped overall cross-sectional shape. The inner side of the side clamping frame is provided with anti-slip protrusions at equal intervals, and the inner side of the front clamping frame is provided with strip grooves at equal intervals. The strip grooves penetrate the front clamping frame and are provided with anti-slip protrusions, which can improve the inner friction of the side clamping frame and improve the stability of cargo clamping.

[0015] Furthermore, the clamping assembly includes a slide groove and a third motor. The slide groove is located at the bottom center of the positioning seat and is perpendicular to the power assembly. A lead screw is rotatably connected to the inner side of the slide groove, with opposite thread directions at both ends of the lead screw. Sliding blocks are threaded to both ends of the lead screw and are slidably connected to both ends of the slide groove. A positive clamping frame is fixedly installed at the bottom of the sliding blocks, and the positive clamping frame and the side clamping frame are perpendicular to each other. The output end of the third motor is fixedly connected to one end of the lead screw. By setting up the clamping assembly, the lead screw can be driven to rotate by the third motor, and the sliding blocks can be driven to move relative to each other. This allows the sliding blocks to move and drive the positive clamping frame to clamp and position the goods, thereby improving the stability of the goods during transportation.

[0016] Furthermore, the power assembly includes a square groove, a side plate, and a worm gear. The square groove is formed on one side of the positioning seat, and the side plate is fixedly installed on both sides of the positioning seat. A worm is rotatably connected to the upper inner side of each side plate, and a support shaft is fixedly installed on the inner side of the worm. A fourth motor is fixedly installed on one side of the side plate, and the output end of the fourth motor is fixedly connected to the outer end of a worm. The worm threads at both ends of the support shaft have opposite directions, and the worm and worm gear are meshed together. By setting up the power assembly, the fourth motor can drive the worm and worm gear to mesh, thereby driving the side clamping frame to rotate. The rotation of the side clamping frame can assist in clamping and positioning goods, and can flexibly adapt to the clamping and positioning of goods of different specifications.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] Firstly, in this invention, the operation of an electric hoist drives the winding of the hoisting steel cable. The retracted hoisting steel cable moves the goods upward. Then, a second motor drives the transmission gear to rotate. Since the transmission gear and rack mesh, the rack can drive the transmission gear to move in the opposite direction when it is stationary. The movement of the transmission gear can assist in driving the sliding block to slide on the inside of the top rail. The sliding of the sliding block can drive the electric hoist to move linearly. At this time, it can assist in the lateral displacement of the goods, making it convenient and flexible to lift and unload goods, and improving the efficiency of the equipment during the transportation and loading / unloading of goods in the port.

[0019] Secondly, in this invention, the equipment can be flexibly moved and adjusted in the horizontal direction, covering the entire cargo yard or ship loading and unloading area, and has a large operating range. Because it can be moved in different directions, the gantry crane is suitable for port cargo loading and unloading sites with various layouts, and can meet different operational needs. The flexible adjustment design can move and lift cargo quickly and efficiently during loading and unloading operations, which can greatly improve loading and unloading efficiency. At the same time, the flexible adjustment design means that this device does not require additional operating space, which can save the space used in loading and unloading sites. Due to its flexibility and efficiency, the gantry crane can reduce the cost of port loading and unloading operations and improve the port's cargo throughput efficiency.

[0020] Thirdly, in this invention, a third motor drives a lead screw to move two sets of clamping frames relative to each other, clamping and positioning the goods to be transported. The adjustable clamping design can flexibly adjust the clamping of goods of different sizes and specifications. Furthermore, the clamping frame is provided with equally spaced slots. The slots can increase the friction on the inner side of the clamping frame, thereby improving the stability of the port cargo clamping.

[0021] Fourthly, in this invention, the fourth motor drives the worm gear to synchronously drive the side clamping frames to rotate in opposite directions. The rotation of the side clamping frames in opposite directions can assist in clamping the other two sides of the goods to be loaded and unloaded. It can be seen that this device can clamp the sides, front and back of the goods, and the overall clamping stability is strong. This device has the ability to clamp goods in multiple directions and can be applied to goods of various shapes and sizes, improving the flexibility and applicability of clamping. At the same time, through multi-directional clamping, the goods can be fixed more firmly, reducing the risk of goods slipping or tilting during loading and unloading, improving the safety of loading and unloading operations. The multi-directional clamping design can distribute the weight of the goods more evenly, reducing the possibility of damage to the goods during loading and unloading, and protecting the integrity of the goods. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear view structure in this invention;

[0024] Figure 3 This is a schematic diagram of the structure viewed from below in this invention;

[0025] Figure 4 This is a schematic diagram of the split structure of the gantry crane support, support plate, annular support groove and slider in this invention;

[0026] Figure 5 This is a top view of the support plate and positioning mechanism in this invention.

[0027] Figure 6 This is a bottom view of the support plate and positioning mechanism in this invention.

[0028] Figure 7 This is a top view of the positioning mechanism in this invention.

[0029] Figure 8 This is a bottom view of the positioning mechanism in this invention.

[0030] In the diagram: 1. Gantry crane support; 2. Mounting plate; 3. First motor; 4. Electric hoist; 5. Adjustment mechanism; 51. Top rail; 52. Drive assembly; 521. Mounting bracket; 522. Rack; 523. Second motor; 524. Transmission gear; 525. Support plate; 526. Sliding block; 527. Annular support groove; 53. Sliding block; 6. Positioning mechanism; 61. Fixing block; 62. Positioning seat; 63. Mounting groove; 64. Guide wheel; 65. 66. Coupling; 661. Power assembly; 662. Square groove; 663. Side fixed plate; 664. Worm gear; 665. Support shaft; 666. Worm; 666. Fourth motor; 67. Clamping assembly; 671. Slide groove; 672. Third motor; 673. Lead screw; 674. Sliding block; 675. Positive clamping frame; 676. Strip groove; 68. Side clamping frame; 7. Suspension cable; 8. Mounting plate; 9. Support frame; 10. Mounting hole; 11. Support plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-8 In this embodiment of the invention, a port loading and unloading lifting device has an overall lifting capacity ranging from 5 tons to 100 tons, an adjustable span ranging from 10 meters to 40 meters, a lifting height ranging from 6 meters to 30 meters, an electric hoist 4 with a lifting speed ranging from 6 to 30 meters per minute, a lateral cargo transport speed ranging from 3 to 8 meters per minute, an overall self-weight ranging from 20 tons to 100 tons, and a first motor 3 with a power ranging from 60 kW. The power range of the second motor 523, the third motor 672 and the fourth motor 666 of this equipment is 20KW-50KW. It includes a gantry crane support 1, a mounting plate 2 is fixedly installed at the top center of the gantry crane support 1, a first motor 3 is fixedly installed at the top center of the mounting plate 2, an adjustment mechanism 5 is fixedly installed at the bottom output end of the first motor 3 through the mounting plate 2, an electric hoist 4 is fixedly installed at the bottom of the adjustment mechanism 5, a lifting steel cable 7 is wound inside the electric hoist 4, and a positioning mechanism 6 is fixedly installed at the bottom of the lifting steel cable 7.

[0033] The adjustment mechanism 5 includes a top rail 51 and a drive assembly 52. ​​The top rail 51 is fixedly installed at the bottom output end of the first motor 3. A sliding block 53 is slidably connected to the inner side of the top rail 51. The bottom of the sliding block 53 is fixedly connected to the middle of the top of the electric hoist 4. The drive assembly 52 is fixedly installed in the middle of one side of the electric hoist 4 body. By setting the adjustment mechanism 5, the top rail 51 can be driven to rotate by the first motor 3 during use, and the top rail 51 can be flexibly adjusted to rotate laterally, making it convenient to adjust the orientation of the top rail 51 to different directions, which is convenient for the equipment to transport and adjust goods in different directions. The drive assembly 52 is set in conjunction with the sliding block 53, and the sliding block 53 can be driven by the drive assembly 52 to slide, which is convenient and flexible for lateral adjustment of goods, improving the convenience of loading, unloading and transporting goods.

[0034] Please see Figures 1-3 and Figures 5-8 The drive assembly 52 includes a mounting frame 521 and a rack 522. The mounting frame 521 is fixedly installed on the middle of one side of the electric hoist 4. A second motor 523 is fixedly installed on the middle of the outer side of the mounting frame 521. The output end of the second motor 523 passes through the mounting frame 521 and is fixedly installed with a transmission gear 524. The rack 522 is fixedly installed on the bottom side of the top rail 51. The transmission gear 524 and the rack 522 are meshed and connected. The drive assembly 52 allows the second motor 523 to drive the transmission gear 524 to rotate during use. Since the transmission gear 524 and the rack 522 are meshed and driven, and the rack 522 is in a fixed state, the rack 522 can drive the sliding block 53 to slide in the opposite direction. The sliding block 53 can flexibly adjust the position of the goods and facilitate the loading and unloading of goods.

[0035] Please see Figures 1-6 A support plate 525 is fixedly installed on the top of the top rail 51. Slider blocks 526 are fixedly installed at both ends of the top of the support plate 525. An annular support groove 527 is opened at the bottom of the mounting plate 2. The slider 526 is slidably connected to the inner side of the annular support groove 527. The slider 526 and the annular support groove 527 on the support plate 525 can help support and reinforce the top rail 51. By reinforcing and supporting the top rail 51, the overall lateral displacement of the top rail 51 is made more stable, which can improve the stability of cargo transportation of this device.

[0036] Please see Figures 1-6 The overall cross-sectional shape of the annular support groove 527 and the slider 526 is convex. Mounting plates 8 are fixedly installed on both sides of the bottom of the gantry crane support 1. The convex annular support groove 527 and slider 526 can improve the overall biting force of the slider 526 and the annular support groove 527, improve the stability of the slider 526 inside the annular support groove 527, and further improve the overall stability of the top rail 51.

[0037] Please see Figures 1-4 The gantry crane support 1 is fixedly installed with support frames 9 at equal intervals on both sides outside and both sides inside. The overall cross-sectional shape of the support frame 9 is an isosceles trapezoid. The support frame 9 can support and strengthen the gantry crane support 1. Furthermore, the isosceles trapezoidal shape of the support frame 9 can further support the gantry crane support 1, making the whole device have strong stability.

[0038] Please see Figures 1-4 Mounting holes 10 are provided at all four corners of the mounting plate 8. Support plates 11 are fixedly installed at both ends of the top of the mounting plate 8. The inner ends of the support plates 11 are fixedly connected to both sides of the gantry crane support 1. The side shape of the support plates 11 is set as a right triangle and is provided with mounting holes 10. The device can be installed and fixed by bolts through the mounting holes 10, which facilitates the fixing of the device. The mounting holes 10 can be provided with countersunk holes to accommodate the ends of bolts, which is convenient to use and can also improve the aesthetics. The triangular support plates 11, due to the strong stability of triangles, can further reinforce the support of the gantry crane support 1 and improve its overall stability.

[0039] Please see Figures 1-8 The positioning mechanism 6 includes a fixing block 61, which is fixedly installed at the bottom of the suspending steel cable 7. A positioning seat 62 is fixedly installed at the bottom of the fixing block 61. The positioning seat 62 has mounting grooves 63 at each of its four corners. Guide wheels 64 are rotatably connected to the inner side of each mounting groove 63. A connecting shaft 65 is fixedly installed between the inner sides of the guide wheels 64. The connecting shaft 65 is rotatably connected to both ends of the positioning seat 62. A power component 66 is fixedly installed at the top of the positioning seat 62. A clamping component 67 is fixedly installed at the bottom of the positioning seat 62. A side clamping frame 68 is fixedly installed at the bottom of the guide wheels 64. By setting the positioning mechanism 6, the device can drive the guide wheels 64 to rotate through the power component 66 during use. The power component 66 and the guide wheels 64 on both sides rotate in different directions, which can drive the side clamping frame 68 to position the goods, making it convenient to adapt to the loading, unloading and transportation of goods of different specifications. The clamping component 67 can clamp the other two sides of the goods, which can further improve the stability of the goods transportation.

[0040] Please see Figures 1-8The clamping assembly 67 includes a slide groove 671 and a third motor 672. The slide groove 671 is located at the bottom center of the positioning seat 62. The slide groove 671 and the power assembly 66 are arranged perpendicularly. A lead screw 673 is rotatably connected to the inner side of the slide groove 671. The two ends of the lead screw 673 have opposite thread directions. Both ends of the lead screw 673 are threadedly connected to sliding blocks 674. The sliding blocks 674 are slidably connected to both ends inside the slide groove 671. A positive clamping frame 675 is fixedly installed at the bottom of the sliding blocks 674. The positive clamping frame 675 and the side clamping frame 68 are also connected. The third motor 672 is vertically positioned, with its output end fixedly connected to one end of the lead screw 673. A clamping assembly 67 is provided, which can drive the lead screw 673 to rotate via the third motor 672. The lead screw 673 drives the sliding blocks 674 to move relative to each other. The threads at both ends of the lead screw 673 are turned in opposite directions. At this time, the lead screw 673 can drive the two sets of sliding blocks 674 to slide towards each other, thereby driving the two sets of positive clamping frames 675 to move relative to each other. This can reinforce and support the other two sides of the goods, making the goods more stable during transportation.

[0041] Please see Figures 1-8 Both the side clamping frame 68 and the front clamping frame 675 have an L-shaped overall cross-section. The inner side of the side clamping frame 68 is provided with anti-slip protrusions at equal intervals, and the inner side of the front clamping frame 675 is provided with strip grooves 676 at equal intervals. The strip grooves 676 penetrate the front clamping frame 675. The anti-slip protrusions can improve the inner friction of the side clamping frame 68 and improve the stability of the goods clamping. Furthermore, since the overall cross-section of the side clamping frame 68 and the front clamping frame 675 are both L-shaped, the L-shaped side clamping frame 68 and the front clamping frame 675 can clamp the side of the goods while clamping and limiting them, which can improve the stability of the goods clamping and transportation and prevent the goods from falling.

[0042] Please see Figures 5-8 The power assembly 66 includes a square groove 661, a side plate 662, and a worm gear 663. The square groove 661 is formed on one side of the positioning seat 62. The side plate 662 is fixedly installed on both sides of the positioning seat 62. A worm gear 665 is rotatably connected to the upper inner side of each side plate 662. A support shaft 664 is fixedly installed on the inner side of the worm gear 665. A fourth motor 666 is fixedly installed on one side of the side plate 662. The output end of the fourth motor 666 is fixedly connected to the outer end of a worm gear 665. The worm gears 665 at both ends of the support shaft 664 are... 5. The threads of the two worms 665 and worm wheel 663 are meshed and connected with opposite directions. A power assembly 66 is provided, which can drive the worm 665 and worm wheel 663 to mesh through the fourth motor 666, thereby driving the side clamping frame 68 to rotate. Since the threads of the two worms 665 are opposite, the side clamping frame 68 can be driven to rotate in opposite directions. The rotation of the side clamping frame 68 can assist in clamping and positioning goods, which can flexibly adapt to the clamping and positioning of goods of different specifications, and can further improve the overall stability of the goods.

[0043] The working principle of this invention is as follows: During the hoisting process, the positioning mechanism 6 at the bottom can assist in clamping the goods to be transported. At this time, by starting the electric hoist 4, the hoisting cable 7 can be wound up. When the hoisting cable 7 is retracted, the goods hoisted inside the clamping mechanism can be moved upward. When the goods are hoisted upward, the second motor 523 can be started. The second motor 523 drives the transmission gear 524 to rotate. Since the transmission gear 524 and the rack 522 are meshed, the rack 522 can drive the transmission gear 524 to move in the opposite direction when it is stationary. The movement of the transmission gear 524 can assist in driving the sliding block 53 to slide inside the top rail 51. The sliding of the slider 526 can drive the electric hoist 4 to move linearly. At this time, it can assist in the lateral displacement of the goods, making it convenient and flexible to hoist and unload goods, and improving the efficiency of the equipment during the transportation and loading / unloading of goods in the port.

[0044] By starting the first motor 3, the top rail 51 is driven to rotate laterally. This rotation allows for flexible adjustment of the transport direction, enabling the equipment to adapt to different cargo transport directions. Compared to existing gantry crane setups, this equipment can flexibly lift and unload cargo in different directions. It demonstrates the equipment's ability to move and adjust horizontally, covering the entire cargo yard or ship loading / unloading area, providing a wide operating range. Due to its directional capability, the gantry crane is suitable for various port cargo handling layouts, meeting diverse operational needs. Its flexible design allows for rapid and efficient movement and lifting of cargo during loading and unloading operations, significantly improving efficiency. The gantry crane boasts high unloading efficiency and a flexible, adjustable design, eliminating the need for additional workspace and saving space in loading and unloading areas. Its flexibility and high efficiency reduce port loading and unloading costs and improve cargo throughput. By incorporating a positioning mechanism 6, the crane can place cargo inside the positive clamping frame 675 during loading and unloading. At this time, the third motor 672 operates, driving the lead screw 673 to rotate. The lead screw 673 rotates inside the slide groove 671, which in turn assists in driving the sliding block 674 to move linearly within the slide groove 671. Since the threads at both ends of the lead screw 673 rotate in opposite directions, the lead screw 673 can drive the sliding block 674 to move relative to each other within the slide groove 671.

[0045] The relative displacement of the two sets of positive clamping frames 675 can be flexibly adjusted by the mutual movement of the slider 526. This adjustment allows for the clamping and positioning of the goods to be transported. The adjustable clamping design can flexibly accommodate goods of different sizes. Furthermore, the positive clamping frames 675 are provided with evenly spaced grooves 676, which increase the friction on the inner side of the positive clamping frames 675, improving the stability of cargo clamping at the port. By setting up a power component 66 in conjunction with the side clamping frame 68, after the positive clamping frames 675 have finished clamping the goods, the fourth motor 666 can be started to drive the worm gear 665 to rotate. The worm gears 665 and worm 663 drive the system, and the threads of the two worm gears 665 have opposite directions. At this time, the two sets of worm gears 665 driven synchronously have different threads, which can drive the two sets of worm gears 663 to rotate in opposite directions. The worm gears 663 on both sides rotate in opposite directions, which can synchronously drive the two sets of connecting shafts 65 at both ends to rotate in opposite directions. Due to the opposite rotation design of the two sets of connecting shafts 65, the two sets of guide wheels 64 at both ends can be flexibly adjusted to rotate in opposite directions. The rotation of the two sets of guide wheels 64 can drive the side clamping frames 68 to rotate in opposite directions. The opposite rotation of the side clamping frames 68 can assist in clamping the other two sides of the goods to be loaded and unloaded. It can be seen that this equipment can clamp the two sides, the front and the back of the goods, and the overall clamping stability is strong.

[0046] This device has the ability to clamp goods from multiple directions, making it suitable for goods of various shapes and sizes. This improves the flexibility and applicability of clamping. At the same time, multi-directional clamping can more firmly fix the goods, reducing the risk of goods slipping or tilting during loading and unloading, thus improving the safety of loading and unloading operations. It can also reduce the number of times the clamp position needs to be readjusted during loading and unloading operations, thereby improving loading and unloading efficiency. The multi-directional clamping design can distribute the weight of the goods more evenly, reducing the possibility of damage to the goods during loading and unloading, protecting the integrity of the goods, and reducing the labor and time costs in loading and unloading operations, thus improving operational efficiency and reducing the cost of loading and unloading operations.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hoisting device for port loading and unloading, characterized in that, The system includes a gantry crane support (1), a mounting plate (2) is fixedly installed at the top center of the gantry crane support (1), a first motor (3) is fixedly installed at the top center of the mounting plate (2), an adjustment mechanism (5) is fixedly installed at the bottom output end of the first motor (3) through the mounting plate (2), an electric hoist (4) is fixedly installed at the bottom of the adjustment mechanism (5), a lifting steel cable (7) is wound inside the electric hoist (4), and a positioning mechanism (6) is fixedly installed at the bottom of the lifting steel cable (7). The positioning mechanism (6) includes a fixing block (61), a positioning seat (62) is fixedly installed at the bottom of the fixing block (61), and mounting grooves (63) are provided at the four corners of the positioning seat (62). Guide wheels (64) are rotatably connected to the inner side of the mounting grooves (63). A clamping assembly (67) is fixedly installed at the bottom of the positioning seat (62), and a side clamping frame (68) is fixedly installed at the bottom of the guide wheels (64). The clamping assembly (67) includes a slide groove (671) and a third motor (672). A lead screw (673) is rotatably connected to the inner side of the slide groove (671). The two ends of the lead screw (673) have opposite thread directions. Both ends of the lead screw (673) are threadedly connected to sliding blocks (674). A positive clamping frame (675) is fixedly installed at the bottom of the sliding block (674). The positive clamping frame (675) and the side clamping frame (68) are arranged vertically. The output end of the third motor (672) is fixedly connected to one end of the lead screw (673). The adjustment mechanism (5) includes a top rail (51) and a drive assembly (52). The top rail (51) is fixedly installed at the bottom output end of the first motor (3). A sliding block (53) is slidably connected to the inner side of the top rail (51). The bottom of the sliding block (53) is fixedly connected to the middle of the top of the electric hoist (4). The drive assembly (52) is fixedly installed in the middle of one side of the electric hoist (4). The first motor (3) drives the top rail (51) to rotate laterally. The rotation of the top rail (51) can flexibly adjust the direction of transport of the top rail (51).

2. The hoisting device for port loading and unloading according to claim 1, characterized in that, The drive assembly (52) includes a mounting bracket (521) and a rack (522). The mounting bracket (521) is fixedly installed on the middle of one side of the electric hoist (4). A second motor (523) is fixedly installed on the middle of the outer side of the mounting bracket (521). A transmission gear (524) is fixedly installed through the mounting bracket (521) at the output end of the second motor (523). The rack (522) is fixedly installed on the bottom side of the top rail (51). The transmission gear (524) and the rack (522) are meshed together.

3. A hoisting device for port loading and unloading according to claim 1, characterized in that, The top of the top rail (51) is fixedly installed with a support plate (525), and sliders (526) are fixedly installed at both ends of the top of the support plate (525). The bottom of the mounting plate (2) is provided with an annular support groove (527), and the sliders (526) are slidably connected to the inner side of the annular support groove (527).

4. A hoisting device for port loading and unloading according to claim 3, characterized in that, The overall cross-sectional shape of the annular support groove (527) and the slider (526) is convex, and the bottom sides of the gantry crane support (1) are fixedly installed with mounting plates (8).

5. A hoisting device for port loading and unloading according to claim 1, characterized in that, The gantry crane support (1) is fixedly installed with support frames (9) at equal intervals on both sides outside and both sides inside, and the overall cross-sectional shape of the support frame (9) is an isosceles trapezoid.

6. A hoisting device for port loading and unloading according to claim 4, characterized in that, Mounting holes (10) are provided at the four corners of the mounting plate (8). Support plates (11) are fixedly installed at both ends of the top of the mounting plate (8). The inner end of the support plate (11) is fixedly connected to both sides of the gantry crane support (1). The side shape of the support plate (11) is set as a right triangle.

7. A hoisting device for port loading and unloading according to claim 1, characterized in that, The fixing block (61) is fixedly installed at the bottom of the suspending steel cable (7), and a connecting shaft (65) is fixedly installed between the inner sides of the guide wheel (64). The connecting shaft (65) is rotatably connected to both ends of the positioning seat (62), and a power component (66) is fixedly installed on the top of the positioning seat (62).

8. A hoisting device for port loading and unloading according to claim 7, characterized in that, The slide groove (671) is located at the bottom center of the positioning seat (62). The slide groove (671) and the power assembly (66) are arranged vertically. The sliding block (674) is slidably connected to both ends of the slide groove (671).

9. A hoisting device for port loading and unloading according to claim 1, characterized in that, The overall cross-sectional shape of the side clamping frame (68) and the front clamping frame (675) is L-shaped. The side clamping frame (68) has anti-slip protrusions at equal intervals on its inner side, and the front clamping frame (675) has strip grooves (676) at equal intervals on its inner side. The strip grooves (676) penetrate the front clamping frame (675).

10. A hoisting device for port loading and unloading according to claim 7, characterized in that, The power assembly (66) includes a square groove (661), a side plate (662), and a worm gear (663). The square groove (661) is opened on one side of the positioning seat (62). The side plate (662) is fixedly installed on both sides of the positioning seat (62). A worm (665) is rotatably connected to the upper inner side of the side plate (662). A support shaft (664) is fixedly installed on the inner side of the worm (665). A fourth motor (666) is fixedly installed on one side of the side plate (662). The output end of the fourth motor (666) is fixedly connected to the outer end of a worm (665). The worms (665) at both ends of the support shaft (664) have opposite thread directions. The worm (665) and the worm gear (663) are meshed together.

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