A flexible automatic surge protection device for a ship unloader
By combining a flexible buffer mechanism and a steel cable adjustment assembly, the mechanical damage and safety hazards of the ship unloader under severe weather conditions are solved, and the ship unloading operation is carried out smoothly and efficiently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU AOTUO MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
AI Technical Summary
Ship unloaders are susceptible to the effects of waves and wind in severe weather, which can cause equipment to sway, resulting in mechanical damage and safety hazards. In addition, the material grabber may not grab the material accurately, affecting the unloading efficiency.
The system employs a flexible buffer mechanism and a steel rope adjustment assembly. These components absorb surge forces, and the pressure-sensitive linkage control assembly monitors and adjusts the position of the feeder in real time to prevent equipment damage.
It effectively absorbs surge forces, ensuring smooth unloading operations, preventing mechanical damage, and improving the stability and safety of the unloader.
Smart Images

Figure CN224449584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, specifically to a flexible automatic anti-surge device for a ship unloader. Background Technology
[0002] A ship unloader is a machine that uses continuous conveying machinery to lift and transport bulk materials, sometimes with self-loading capabilities, or equipped with loading and feeding devices. It continuously lifts bulk materials from the ship's hold and unloads them onto a boom or conveyor to a designated location on shore. During operation, the ship unloader typically needs to quickly unload materials from the ship. However, in strong winds, the ship's hull sways with the wind, causing the unloader to collide with the ship during unloading, potentially damaging either the ship or the unloader itself.
[0003] In addition, when waves crash against the hull, the forces exerted by the waves are transmitted to the materials on board without reservation. As the materials and the ship sway, these forces eventually act on the boom of the unloader. This continuous transmission of force, especially under severe weather conditions, can place a heavy burden on the unloader. After prolonged operation, the material handling unit of the unloader is prone to severe deformation, which not only significantly reduces the efficiency of unloading operations, but also prevents the material handling unit from accurately and efficiently grabbing materials. Furthermore, it poses a potential risk to the stability of the entire steel structure of the unloader, meaning that deformation or damage to the steel structure may lead to more serious safety accidents, and may even cause personal injury and property damage.
[0004] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a grab bucket unloader and its anti-collision device [CN202311039368.4], which includes a bucket body, a first protective component, and a second protective component. The bucket body has a receiving chamber for containing materials. The first protective component is located on the outer wall of the bucket body and includes a receiving bag, a first support member, and a first buffer member. The first support member connects the outer wall of the bucket body and the receiving bag. The receiving bag is laid along the outer wall of the bucket body and contains liquid. The first buffer member is located between the outer wall of the bucket body and the receiving bag. The bucket body has a perforation that communicates with the receiving chamber. The second protective component includes a second support member and a connecting member. One end of the second support member is connected to the receiving bag, and the other end of the second support member is located in the perforation. The connecting member is used to connect the other end of the second support member to the bucket body.
[0005] The above solution has solved the problem of sea winds affecting the stability of ship unloaders to a certain extent in the existing technology. However, the solution still has many shortcomings. For example, sea waves can affect the boom of the ship unloader, causing the material grabber to be unable to grab the material accurately, and may even cause damage to the steel structure of the ship unloader. Summary of the Invention
[0006] The purpose of this invention is to address the above-mentioned problems by providing a flexible automatic anti-surge device for a ship unloader.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a flexible automatic anti-surge device for a ship unloader, comprising a vertically arranged support frame, a horizontal boom at the upper end of the support frame, a ship unloader material picker rotatably mounted at one end of the horizontal boom and a counterweight block at the other end, a flexible buffer mechanism at one end of the ship unloader material picker, a steel cable adjustment assembly connected to the horizontal boom, and a pressure-sensitive linkage control assembly installed inside the ship unloader material picker.
[0008] In the above-mentioned flexible automatic anti-surge device for a ship unloader, the flexible buffer mechanism includes a flexible buffer component located at one end of the ship unloader's feeder, and the flexible buffer component is axially provided with an anti-collision buffer component arranged in a ring.
[0009] In the above-mentioned flexible automatic anti-surge device for a ship unloader, the flexible buffer has a spherical structure, the anti-collision buffer covers the outer circumferential wall of one end of the ship unloader's feeder, and the bottom of the flexible buffer protrudes outward from the anti-collision buffer.
[0010] In the aforementioned flexible automatic anti-surge device for a ship unloader, the steel cable adjustment assembly includes a rotating linkage rod disposed at one end of the horizontal boom. One end of the rotating linkage rod is connected to the ship unloader's feeder, and a linkage pulley is provided on the rotating linkage rod. A clearance through hole is provided on the horizontal boom to allow the linkage pulley to be exposed.
[0011] In the aforementioned flexible automatic anti-surge device for a ship unloader, a support pulley is provided at the upper end of the support frame, and the support pulley and the linkage pulley are connected by a linkage steel wire rope.
[0012] In the aforementioned flexible automatic anti-surge device for a ship unloader, the steel cable adjustment assembly further includes an angle adjustment cylinder disposed at the lower end of the horizontal boom. One end of the angle adjustment cylinder is rotatably disposed on the first hinge frame at the lower end of the horizontal boom, and the other end is disposed on the second hinge frame on the ship unloader's feeder.
[0013] In the aforementioned flexible automatic anti-surge device for a ship unloader, articulated wheels are provided on both the first and second articulated frames.
[0014] In the aforementioned flexible automatic anti-surge device for a ship unloader, a hinged seat is provided on one side of the horizontal boom, and an adjusting pulley is provided on the hinged seat. The adjusting pulley is connected to a driven pulley located at the upper end of the support frame via a steel wire adjusting rope.
[0015] In the aforementioned flexible automatic anti-surge device for a ship unloader, a linkage shaft is mounted on the first hinge frame, and one end of the linkage shaft is connected to an adjusting shaft located on one side of the second hinge frame via an adjusting cylinder.
[0016] In the aforementioned flexible automatic anti-surge device for a ship unloader, the pressure-sensitive linkage control component includes a pressure detection switch located at the end of the ship unloader's feeder away from the horizontal boom. The pressure detection switch is connected to a controller, which is connected to the aforementioned angle adjustment cylinder.
[0017] Compared with the prior art, the advantages of this utility model are:
[0018] 1. It can absorb the additional force caused by the surge, thereby effectively achieving the energy absorption effect and ensuring the smooth progress of the entire unloading operation.
[0019] 2. The boom's luffing motion is achieved by winding the wire rope, which allows the boom to flexibly lift and avoid forces that the material handler cannot fully absorb when applied to it, thus preventing mechanical damage caused by excessive force.
[0020] 3. It can monitor pressure changes in real time and automatically trigger a mechanism when necessary, so that the horizontal arm can be raised to drive the feeder head to avoid the impact in time, effectively preventing equipment damage caused by external impact. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the image;
[0023] Figure 3 yes Figure 1 Enlarged view of the structure at point B in the image;
[0024] Figure 4 This is a top view of the present invention;
[0025] Figure 5 yes Figure 4 Enlarged view of the structure at point C in the image;
[0026] In the diagram: 1. Support frame; 2. Horizontal boom; 3. Unloader material handler; 4. Counterweight block; 5. Flexible buffer mechanism; 51. Flexible buffer component; 52. Anti-collision buffer component; 6. Steel rope adjustment assembly; 61. Rotating linkage rod; 62. Linkage pulley; 63. Clearance through hole; 64. Support pulley; 65. Linkage steel wire rope; 7. Pressure-sensitive linkage control assembly; 8. Angle adjustment cylinder; 81. First hinge frame; 82. Second hinge frame; 83. Hinge seat; 84. Adjusting pulley; 85. Steel wire adjustment rope; 86. Driven pulley; 87. Linkage shaft; 88. Adjustment shaft. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0028] like Figure 1-5 As shown, a flexible automatic anti-surge device for a ship unloader includes a vertically arranged support frame 1, a horizontal boom 2 at the upper end of the support frame 1, a ship unloader material picker 3 rotatably mounted at one end of the horizontal boom 2 and a counterweight block 4 at the other end, a flexible buffer mechanism 5 at one end of the ship unloader material picker 3, a steel cable adjustment assembly 6 connected to the horizontal boom 2, and a pressure-sensitive linkage control assembly 7 installed inside the ship unloader material picker 3.
[0029] The flexible buffer mechanism 5 includes a flexible buffer 51 at one end of the unloader material taker 3, and an anti-collision buffer 52 arranged in a ring shape is provided on the flexible buffer 51.
[0030] The flexible buffer mechanism 5 is used to prevent rigid collisions at the bottom of the unloader's feeder 3, which could cause damage.
[0031] As can be seen, the flexible buffer 51 has a spherical structure, the anti-collision buffer 52 covers the outer circumferential wall of one end of the unloader material taker 3, and the bottom of the flexible buffer 51 protrudes outward from the anti-collision buffer 52.
[0032] This configuration is designed to improve collision buffering and enhance circumferential protection.
[0033] Obviously, the steel cable adjustment assembly 6 includes a rotating linkage rod 61 set at one end of the horizontal boom 2. One end of the rotating linkage rod 61 is connected to the unloader material taker 3, and the rotating linkage rod 61 is provided with a linkage pulley 62. The horizontal boom 2 is provided with a clearance through hole 63 for the linkage pulley 62 to be exposed.
[0034] Furthermore, the upper end of the support frame 1 is provided with a support pulley 64, and the support pulley 64 is connected to the linkage pulley 62 by a linkage steel wire rope 65.
[0035] The linkage wire rope 65 here is mainly used to adjust the angle between the unloader's feeder 3 and the horizontal boom 2.
[0036] Furthermore, the steel cable adjustment assembly 6 also includes an angle adjustment cylinder 8 disposed at the lower end of the horizontal boom 2. One end of the angle adjustment cylinder 8 is rotatably disposed on the first hinge frame 81 at the lower end of the horizontal boom 2, and the other end is disposed on the second hinge frame 82 on the unloader material taker 3.
[0037] Specifically, the first articulated frame 81 is provided with an articulated wheel body.
[0038] More specifically, a hinge seat 83 is provided on one side of the horizontal boom 2, and an adjusting pulley 84 is provided on the hinge seat 83. The adjusting pulley 84 is connected to the driven pulley 86 provided on the upper end of the support frame 1 through a steel wire adjusting rope 85.
[0039] The angle adjustment cylinder 8 is used for daily angle adjustment of the unloader material taker 3, and the wire adjustment rope 85 is used for stretching and adjusting the up and down swing amplitude of the horizontal boom 2 and is linked with the angle adjustment cylinder 61.
[0040] Furthermore, the upper end of the support frame 1 can rotate and is driven by a telescopic rod located between the upper end of the support frame 1 and the counterweight block 4.
[0041] In detail, a linkage shaft 87 is provided on the first hinge frame 81, and one end of the linkage shaft 87 is connected to an adjusting shaft 88 located on one side of the second hinge frame 82 via an adjusting cylinder 8.
[0042] Preferably, the pressure-sensitive linkage control component 7 includes a pressure detection switch located at the end of the unloader's feeder 3 away from the horizontal boom 2. The pressure detection switch is connected to a controller, and the controller is connected to the aforementioned angle adjustment cylinder 61.
[0043] In summary, the principle of this embodiment is as follows: During use, the luffing motion of the unloader's material handler 3 is achieved through the linkage wire rope 65 and the wire adjustment rope 85. This allows the horizontal boom 2 to flexibly lift and avoid the force when the unloader's material handler 3 fails to fully absorb the force acting on the horizontal boom 2, thereby preventing mechanical damage caused by excessive force. Secondly, the pressure-sensitive linkage control component 7 monitors the pressure changes of the unloader's material handler 3 in real time. When excessive pressure is detected, the horizontal boom 2 lifts to drive the head of the unloader's material handler 3 to avoid the force in time, effectively preventing equipment damage caused by external impact.
[0044] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0045] Although this document frequently uses terms such as support frame 1, horizontal boom 2, unloader material handler 3, counterweight block 4, flexible buffer mechanism 5, flexible buffer component 51, anti-collision buffer component 52, steel rope adjustment assembly 6, rotating linkage rod 61, linkage pulley 62, clearance through hole 63, support pulley 64, linkage steel wire rope 65, pressure-sensitive linkage control assembly 7, angle adjustment cylinder 8, first hinge frame 81, second hinge frame 82, hinge seat 83, adjusting pulley 84, steel wire adjustment rope 85, driven pulley 86, linkage shaft 87, and adjusting shaft 88, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A flexible automatic anti-surge device for a ship unloader, comprising a vertically arranged support frame (1), wherein a horizontal boom (2) is provided at the upper end of the support frame (1), one end of the horizontal boom (2) is rotatably equipped with a ship unloader feeder (3) and the other end is equipped with a counterweight block (4), characterized in that, The unloader material taker (3) is provided with a flexible buffer mechanism (5) at one end, a steel rope adjustment assembly (6) is connected to the horizontal boom (2), and a pressure-sensitive linkage control assembly (7) is provided inside the unloader material taker (3).
2. The flexible automatic surge protection device for a ship unloader according to claim 1, characterized in that, The flexible buffer mechanism (5) includes a flexible buffer (51) at one end of the unloader material taker (3), and the flexible buffer (51) is provided with an anti-collision buffer (52) arranged in a ring along the axial direction.
3. A flexible anti-surge device for a ship unloader as claimed in claim 2, wherein, The flexible buffer (51) has a spherical structure, and the anti-collision buffer (52) covers the outer circumferential wall of one end of the unloader material taker (3). The bottom of the flexible buffer (51) protrudes outward from the anti-collision buffer (52).
4. The flexible automatic surge protection device for a ship unloader according to claim 1, characterized in that, The steel cable adjustment assembly (6) includes a rotating linkage rod (61) set at one end of the horizontal boom (2). One end of the rotating linkage rod (61) is connected to the unloader material taker (3), and a linkage pulley (62) is provided on the rotating linkage rod (61). A clearance through hole (63) is provided on the horizontal boom (2) to allow the linkage pulley (62) to be exposed.
5. A flexible anti-surge device for a ship unloader as claimed in claim 4, wherein, The upper end of the support frame (1) is provided with a support pulley (64), and the support pulley (64) and the linkage pulley (62) are connected by a linkage steel wire rope (65).
6. A flexible anti-surge device for a ship unloader as claimed in claim 5, wherein, The steel cable adjustment assembly (6) further includes an angle adjustment cylinder (8) located at the lower end of the horizontal boom (2). One end of the angle adjustment cylinder (8) is rotatably mounted on the first hinge frame (81) at the lower end of the horizontal boom (2), and the other end is mounted on the second hinge frame (82) on the unloader material taker (3).
7. A flexible automatic surge protection device for a ship unloader according to claim 6, characterized in that, The first hinge frame (81) is provided with a hinge wheel body.
8. A flexible anti-surge device for a ship unloader as defined in claim 6, characterized in that The horizontal boom (2) is provided with a hinge seat (83) on one side, and an adjusting pulley (84) is provided on the hinge seat (83). The adjusting pulley (84) is connected to the driven pulley (86) provided on the upper end of the support frame (1) through a steel wire adjusting rope (85).
9. A flexible anti-surge device for a ship unloader as claimed in claim 8, wherein, The first hinge frame (81) is provided with a linkage shaft (87), one end of which is connected to an adjustment shaft (88) located on one side of the second hinge frame (82) via an angle adjustment cylinder (8).
10. A flexible anti-surge device for a ship unloader as defined in claim 6, characterized in that The pressure-sensitive linkage control component (7) includes a pressure detection switch located at the end of the unloader material taker (3) away from the horizontal boom (2). The pressure detection switch is connected to a controller, which is connected to the aforementioned angle adjustment cylinder (8).
Citation Information
Patent Citations
Grab ship unloader and anti-collision device thereof
CN117088248A