An automated anti-swing container gantry crane

Abstract

The utility model provides a kind of automatic anti-swing container gantry crane, including portal, hoist trolley and lifting spreader, hoist trolley is provided with lifting drum, lifting drum is connected with lifting spreader by wire rope;Lifting drum includes first drum and second drum, and first drum and second drum respectively lead out four wire ropes, hoist trolley is provided with four sets of guide pulley blocks, and each set of guide pulley block corresponds two wire ropes;Lifting spreader is provided with four groups of wire rope connecting seats, wire rope is connected wire rope connecting seat by guide pulley block, and two wire ropes are connected on each group of wire rope connecting seat upper side and the two wire ropes are arranged in V type.This automatic anti-swing container gantry crane has the advantages of scientific design, high mechanical efficiency, good lifting stability and avoidance of swing, and is suitable for container loading and unloading and handling.

Description

Technical Field

[0001] This utility model relates to a lifting device, specifically, to an automated anti-sway container gantry crane. Background Technology

[0002] Container gantry cranes are mainly used for loading, unloading, handling, and stacking containers in container rail transfer yards and large container storage and transportation yards. They are primarily composed of a main beam, rigid and flexible gantry legs, a traveling trolley, a lifting mechanism, a trolley traveling mechanism, an electrical system, and an operator's cab. There are many types of container gantry cranes on the market, such as the rail-mounted container gantry crane disclosed in Chinese patent CN222684107U and the container gantry crane with adjustable supports disclosed in Chinese patent CN223016309U. These container gantry cranes mostly lift by connecting a movable pulley to a wire rope on the spreader, or by directly connecting the wire rope to the hook. However, the mechanical efficiency of lifting by connecting a movable pulley to the wire rope is relatively low, and lifting by directly connecting the wire rope to the hook is prone to swaying during use, resulting in poor lifting stability.

[0003] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated anti-sway container gantry crane.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automated anti-sway container gantry crane includes a gantry, a lifting trolley, and a lifting spreader. The lifting trolley is equipped with a lifting drum, which is connected to the lifting spreader via wire ropes. The lifting drum includes a first drum and a second drum, with four wire ropes extending from each drum. The lifting trolley is equipped with four sets of guide pulley blocks, each corresponding to two wire ropes. The lifting spreader is equipped with four sets of wire rope connectors, with the wire ropes passing through the guide pulley blocks and connecting to the connectors. Each connector has two wire ropes connected to its upper side, arranged in a V-shape.

[0006] The lifting spreader includes an upper connecting seat, a lower connecting seat, and a container spreader. The wire rope connecting seat is located on the upper side of the upper connecting seat, and the lower side of the lower connecting seat is rotatably connected to the container spreader through a slewing bearing.

[0007] The upper connecting seat is a rectangular frame, with four sets of wire rope connecting seats respectively set on the upper sides of the four rectangular sides of the rectangular frame, and four sets of guide pulleys arranged in a rectangular pattern.

[0008] Adjustment rails and fine-tuning hydraulic cylinders are respectively installed on the upper sides of the four rectangular sides of the rectangular frame. The wire rope connecting seat is slidably connected to the adjustment rail, and the telescopic end of the hydraulic cylinder is connected to the wire rope connecting seat.

[0009] The guide pulley block includes three guide pulleys, with their central axes arranged in the X, Y, and Z directions, respectively. One wire rope passes through the guide pulley with the central axis in the Y direction and connects to the wire rope connecting seat. The other wire rope first passes through the guide pulley with the central axis in the Z direction and then passes through the guide pulley with the central axis in the X direction to connect to the wire rope connecting seat.

[0010] The guide pulley includes a pulley support, a rotating wheel rotatably connected to the pulley support, and several rope-blocking brackets fixed on the pulley support. The outer edge of the rotating wheel is provided with an annular groove. The pulley support includes a base with an open top surface and support plates provided on both sides of the base. The rotating wheel is located between the two support plates and rotatably connected to the two support plates. The rope-blocking bracket includes a mounting plate connected to the support plates and a stop post connected to the mounting plate. The stop post is close to the outer edge of the rotating wheel and spans the annular groove.

[0011] At least two sets of rope-blocking brackets are provided for the guide pulley with the central axis in the X direction and the guide pulley with the central axis in the Y direction, with the blocking post of one set of rope-blocking brackets being close to the top of the pulley.

[0012] Compared to existing technologies, this utility model offers the following advantages: it provides an automated anti-sway container gantry crane with a scientific design, high transmission efficiency, good lifting stability, and the ability to prevent swaying, making it suitable for container loading, unloading, and handling. Specifically, instead of installing movable pulleys on the spreader, the wire ropes from the drum are guided by fixed pulleys on the main beam and directly connected to the spreader, resulting in higher transmission efficiency. Furthermore, the eight wire ropes connected to the spreader form four sets of V-shaped structures, which enhances the stability of the lifting process and effectively prevents swaying of the spreader during lifting and movement. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of this utility model.

[0014] Figure 2 This is a side view of the structure of this utility model.

[0015] Figure 3 This is a front view structural diagram of the lifting device in this utility model.

[0016] Figure 4 This is a side view of the hoisting device in this utility model.

[0017] Figure 5 This is a top view of the crane trolley in this utility model.

[0018] Figure 6This is a schematic diagram of the guide pulley block in this utility model.

[0019] In the diagram: 1. Electrical room; 2. Crane trolley; 3. Trolley traveling mechanism; 4. Gantry; 5. Anchoring device; 6. Windproof cable device; 7. Cable reel; 8. Hydraulic rail clamp; 9. Tie rod; 10. Extension beam; 11. I-beam; 12. Electric hoist; 13. Rain cover; 14. First reel; 15. Second reel; 16. Upper connecting seat; 17. Lower connecting seat; 18. Container spreader; 19. Wire rope connecting seat; 20. Fine-tuning hydraulic cylinder; 21. Guide pulley with X-axis center; 22. Guide pulley with Y-axis center; 23. Guide pulley with Z-axis center; 24. Driver's cab; 25. Pulley support; 26. Roller wheel; 27. Rope guard bracket. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. "Installed," "equipped with," and "connected" can employ conventional means in the prior art, such as integral installation, snap-fit ​​installation, welding connection, adhesive connection, bolted connection, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances and select suitable connection, setting, or installation methods from the existing technology.

[0022] like Figure 1-6 As shown, an automated anti-sway container gantry crane includes a gantry 4, a lifting trolley 2, and a lifting device. The lifting trolley 2 is equipped with a lifting drum, which is connected to the lifting device via wire ropes. The lifting drum includes a first drum 14 and a second drum 15, with four wire ropes extending from each drum. The lifting trolley 2 is equipped with four sets of guide pulleys, each set corresponding to two wire ropes. The lifting device is equipped with four sets of wire rope connecting seats 19, with the wire ropes passing through the guide pulleys and connecting to the wire rope connecting seats 19. Each set of wire rope connecting seats 19 has two wire ropes connected to its upper side, and these two wire ropes are arranged in a V-shape.

[0023] This automated anti-sway container gantry crane boasts advantages such as scientific design, high transmission efficiency, excellent lifting stability, and prevention of swaying, making it suitable for container loading, unloading, and handling. Specifically, it eliminates the need for movable pulleys on the spreader; instead, the wire ropes from the drum are guided by fixed pulleys on the main beam and directly connected to the spreader, resulting in higher transmission efficiency. Furthermore, the eight wire ropes connected to the spreader form four sets of V-shaped structures, which enhance stability during lifting and effectively prevent swaying of the spreader during lifting and movement.

[0024] Preferably, a rain cover 13 can be installed on the trolley 2 to shield the lifting drum and guide pulleys. The gantry 4 includes a main beam and two sets of legs located on the lower side of the main beam. A guardrail and an electrical room 1 are installed on one side of the main beam. Climbing ladders are installed on the legs. Two sets of tie rods 9 are installed on the upper side of the main beam. Each set includes two tie rods 9 arranged in an inverted V shape. The upper ends of the two inverted V-shaped tie rods 9 are connected to the upper side of the main beam through extension beams 10. The two opposing extension beams 10 are connected by I-beams 11. An electric hoist 12 is installed on the I-beams 11 for easy maintenance of the trolley 2.

[0025] In one embodiment, the lifting spreader includes an upper connecting seat 16, a lower connecting seat 17, and a container spreader 18. A wire rope connecting seat 19 is located above the upper connecting seat 16, and the lower side of the lower connecting seat 17 is rotatably connected to the container spreader 18 via a slewing bearing. Specifically, the slewing bearing is an external gear slewing bearing, and a slewing motor is provided on the side of the lower connecting seat. The output end of the slewing motor is connected to a transmission gear, which meshes with the external gear ring of the external gear slewing bearing, so that the slewing motor drives the container spreader to rotate. In one embodiment, the upper connecting seat 16 is a rectangular frame, and four sets of wire rope connecting seats 19 are respectively set on the upper middle part of the four rectangular sides of the rectangular frame. The four sets of guide pulleys are arranged in a rectangular pattern for easy assembly.

[0026] In one embodiment, an adjustment track and a fine-tuning hydraulic cylinder 20 are respectively provided on the upper side of the four rectangular sides of the rectangular frame. The wire rope connecting seat 19 is slidably connected to the adjustment track. The telescopic end of the fine-tuning hydraulic cylinder is connected to the wire rope connecting seat 19, so that the position of the wire rope connecting seat can be finely adjusted by the extension and retraction of the hydraulic cylinder.

[0027] In one embodiment, the guide pulley group includes three guide pulleys, with the central axes of the three guide pulleys arranged in the X, Y, and Z directions, respectively. One wire rope is wound around the guide pulley 22 with the central axis in the Y direction and connected to the wire rope connecting seat 19. The other wire rope is first wound around the guide pulley 23 with the central axis in the Z direction, and then around the guide pulley 21 with the central axis in the X direction and connected to the wire rope connecting seat 19. This winding method improves the stability of the connection structure.

[0028] In one embodiment, the guide pulley includes a pulley support 25, a rotating wheel 26 rotatably connected to the pulley support 25, and a plurality of rope-blocking brackets 27 fixed on the pulley support 25. The outer edge of the rotating wheel 26 is provided with an annular groove. The pulley support 25 includes a base with an open top surface and support plates disposed on both sides of the base. The rotating wheel 26 is located between two support plates and rotatably connected to the two support plates. The rope-blocking brackets 27 include a mounting plate connected to the support plates and a stop post connected to the mounting plate. The stop post is close to the outer edge of the rotating wheel 26 and spans the annular groove to prevent the wire rope from coming off.

[0029] In one embodiment, the guide pulley 21 with its central axis in the X direction and the guide pulley 22 with its central axis in the Y direction are provided with at least two sets of rope-blocking brackets 27, one set of rope-blocking brackets 27 having its stop post close to the top of the rotating wheel 26. Preferably, the upper side of the pulley support 25 is provided with an arc-shaped slide rail corresponding to the rope-blocking brackets 27, one set of rope-blocking brackets 27 being slidably connected to the arc-shaped slide rail to accommodate different wire rope angles, while the other rope-blocking brackets 27 are fixedly connected to the pulley support 25.

[0030] It should be noted that the container gantry crane is a large lifting device, including a large number of parts and an automated control system. For example, the first drum 14 and the second drum 15 are connected by a transmission mechanism and driven synchronously; hydraulic brakes are provided on the trolley 2 corresponding to the first drum 14 and the second drum 15; the driver's cab 24 is fixed to the side of the trolley 2; the lower end of the outriggers is provided with a trolley traveling mechanism 3, a cable drum 7, a hydraulic rail clamp 8, an anchoring device 5, and a windproof cable device 6, etc. This content is not closely related to the improvement of this utility model, and standard parts can be used for assembly. The automated control system also uses existing control elements and control circuits, and specific details will not be repeated.

[0031] The above embodiments can be combined with each other.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An automated anti-sway container gantry crane, comprising a gantry, a lifting trolley, and a lifting spreader, wherein a lifting drum is mounted on the lifting trolley, and the lifting drum is connected to the lifting spreader via a wire rope; characterized in that: The hoisting drum includes a first drum and a second drum, from which four wire ropes are led out respectively. The hoisting trolley is equipped with four sets of guide pulley blocks, each set of guide pulley blocks corresponding to two wire ropes. The hoisting device is equipped with four sets of wire rope connecting seats. The wire ropes are wound around the guide pulley blocks and connected to the wire rope connecting seats. Two wire ropes are connected to the upper side of each set of wire rope connecting seats, and the two wire ropes are arranged in a V-shape.

2. The automated anti-sway container gantry crane according to claim 1, characterized in that: The lifting spreader includes an upper connecting seat, a lower connecting seat, and a container spreader. The wire rope connecting seat is located on the upper side of the upper connecting seat, and the lower side of the lower connecting seat is rotatably connected to the container spreader through a slewing bearing.

3. The automated anti-sway container gantry crane according to claim 2, characterized in that: The upper connecting seat is a rectangular frame, with four sets of wire rope connecting seats respectively set on the upper sides of the four rectangular sides of the rectangular frame, and four sets of guide pulleys arranged in a rectangular pattern.

4. The automated anti-sway container gantry crane according to claim 3, characterized in that: Adjustment rails and fine-tuning hydraulic cylinders are respectively installed on the upper sides of the four rectangular sides of the rectangular frame. The wire rope connecting seat is slidably connected to the adjustment rail, and the telescopic end of the fine-tuning hydraulic cylinder is connected to the wire rope connecting seat.

5. The automated anti-sway container gantry crane according to claim 4, characterized in that: The guide pulley block includes three guide pulleys, with their central axes arranged in the X, Y, and Z directions, respectively. One wire rope passes through the guide pulley with the central axis in the Y direction and connects to the wire rope connecting seat. The other wire rope first passes through the guide pulley with the central axis in the Z direction and then passes through the guide pulley with the central axis in the X direction to connect to the wire rope connecting seat.

6. The automated anti-sway container gantry crane according to claim 5, characterized in that: The guide pulley includes a pulley support, a rotating wheel rotatably connected to the pulley support, and several rope-blocking brackets fixed on the pulley support. The outer edge of the rotating wheel is provided with an annular groove. The pulley support includes a base with an open top surface and support plates provided on both sides of the base. The rotating wheel is located between the two support plates and rotatably connected to the two support plates. The rope-blocking bracket includes a mounting plate connected to the support plates and a stop post connected to the mounting plate. The stop post is close to the outer edge of the rotating wheel and spans the annular groove.

7. The automated anti-sway container gantry crane according to claim 6, characterized in that: At least two sets of rope-blocking brackets are provided for the guide pulley with the central axis in the X direction and the guide pulley with the central axis in the Y direction, with the blocking post of one set of rope-blocking brackets being close to the top of the pulley.

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