Wave-avoiding anti-collision chain bucket ship unloader

Abstract

The utility model discloses a wave-avoiding anti-collision chain bucket ship unloader which comprises a chain bucket ship unloader body and a PLC system, the chain bucket ship unloader body comprises a driving chain wheel, a hopper chain and a hopper, the driving chain wheel is in control connection with the PLC system, the hopper chain is wound around the driving chain wheel to be connected, and a semi-closed shell is arranged on the outer side of the chain bucket. Part of the hopper is exposed out of the open end of the semi-closed shell, a rubber sheet is arranged at the bottom of the hopper, an induction device is arranged in the semi-closed shell and is in control connection with the PLC system, and a telescopic structure is arranged at the open end of the semi-closed shell. According to the utility model, stable operation can be maintained under severe sea conditions, the impact force of a chain bucket system under the action of surge is reduced, the equipment loss is reduced, the service life of the equipment is prolonged, the ship unloading efficiency and safety are improved, and meanwhile, the influence on the environment is reduced.

Description

Technical Field

[0001] This utility model relates to a wave-avoiding and collision-proof chain bucket unloader, belonging to the field of chain bucket collision-avoiding and wave-avoiding technology. Background Technology

[0002] Chain bucket unloaders complete ship unloading operations through the coordinated work of components such as the chain bucket lifting mechanism, bucket elevator head rotation mechanism, receiving mechanism, boom rotation mechanism, boom pitching mechanism, traveling mechanism, and belt conveyor system. With the deepening of economic globalization, the transshipment and handling of bulk cargo is becoming increasingly busy. When ships are docked at the pier, unloaders are needed to unload their cargo. Currently, existing chain bucket continuous unloaders employ rigid material handling during both the lifting and unloading processes. While these systems offer high efficiency and long service life, they present challenges in avoiding surges and achieving autonomous clearing within the ship's hold, significantly impacting both unloading efficiency and safety.

[0003] Despite the high efficiency and environmental friendliness of chain bucket unloaders, there are still some technical challenges and shortcomings in their practical application.

[0004] The chain bucket reclaiming system is a rigid system. When operating inside the ship's hold, it has problems such as uncontrollable digging force of the chain bucket on the material pile, inability to safely and reliably clean the hold, and lack of surge protection.

[0005] Chain bucket unloaders are sensitive to wave forces, especially in rough sea conditions. If the height difference between the bottom of the hull caused by wave forces exceeds 600mm, the material pile inside the hull and the chain bucket system will generate horizontal and vertical forces. These forces will have an adverse effect on the safety of the chain bucket unloader and the hull, and may cause damage to the unloader or the hull.

[0006] The lack of effective wave-avoidance measures leads to unstable contact between the chain bucket system and the material pile in rough sea conditions, resulting in reduced unloading efficiency, or even interruption of operations, and poor safety.

[0007] Chain bucket unloaders are prone to clogging when handling oversized and irregularly shaped materials, and the working conditions of the chain and buckets are relatively harsh, resulting in rapid wear and high maintenance costs.

[0008] For highly viscous materials such as iron ore, the chain buckets are more prone to sticking, requiring a chain bucket cleaning pool for cleaning, which increases the cost of dock renovation and the total cost of the unloader.

[0009] Existing chain bucket unloaders have technical bottlenecks in terms of wave avoidance, safety, efficiency, and environmental protection. In particular, they are difficult to maintain stable operation when operating in severe sea conditions such as swells, which affects operational efficiency and safety.

[0010] The existing wave avoidance and collision prevention measures for chain bucket unloaders are mostly based on two solutions: wave avoidance device technology and seismic resistance technology.

[0011] The working principle of the wave-avoidance device is to install a fully free-floating, lifting wave-avoidance device on the chain bucket unloader. This allows the equipment to adapt to the ship's motion caused by waves, maintaining stable contact between the chain buckets and the ship's hold, ensuring the continuity and stability of material transport. Through the coordinated use of lifting cylinders, traction cables, and force sensors, it effectively achieves surge protection. The system is compact and can be automatically controlled. However, the system involves multiple moving parts and sensors, requiring high reliability of electronic components. Failure of any sensor or control unit can lead to the failure of the entire system. Ensuring the reliability and durability of all moving parts and sensors, especially in harsh port environments, increases the complexity and cost of manufacturing and maintenance.

[0012] The working principle of anti-vibration technology is to reduce vibration during operation by using multiple shock absorbers, and to increase operational flexibility through the design of lifting mechanisms and rotating rods. However, the addition of shock absorbers and adjustment mechanisms may increase the weight of the unloader, affecting its movement and operation. Precise control of the height and angle adjustment mechanisms may be required to avoid operational errors.

[0013] Option 1 focuses more on automation and wave protection, while Option 2 emphasizes vibration reduction and adjustment functions. Option 1 improves operational convenience through its automated control system, while Option 2 increases operational flexibility through its adjustment mechanism. Both enhance operational safety through their respective designs, but Option 2's vibration reduction design provides better stability in actual operation. Option 1 may require more parameter adjustments to adapt to different operating environments, while Option 2's adjustment mechanism offers better physical adaptability.

[0014] It is evident that both schemes have drawbacks, and there is an urgent need to propose a chain bucket that can improve stability in practical applications. Utility Model Content

[0015] The purpose of this invention is to provide a wave-avoiding and collision-resistant chain bucket unloader. This invention can maintain stable operation under harsh sea conditions, reduce the impact force of the chain bucket system under wave surge, reduce equipment wear and tear, extend equipment service life, improve unloading efficiency and safety, and at the same time reduce environmental impact.

[0016] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wave-avoiding and collision-resistant chain bucket unloader, comprising a chain bucket unloader and a PLC system. The chain bucket unloader includes a drive sprocket, a bucket chain, and a bucket. The drive sprocket is connected to the PLC system for control. The bucket chain is wound around the drive sprocket. A semi-enclosed shell is provided on the outside of the chain bucket, with part of the bucket exposed at the opening end of the semi-enclosed shell. A rubber sheet is provided at the bottom of the bucket. A sensing device is provided inside the semi-enclosed shell, and the sensing device is connected to the PLC system for control. A telescopic structure is provided at the opening end of the semi-enclosed shell.

[0017] The aforementioned wave-avoiding and anti-collision chain bucket unloader has a flexible rubber layer on the outer surface of its semi-enclosed outer shell.

[0018] In the aforementioned wave-avoiding and anti-collision chain bucket unloader, the open end of the semi-enclosed shell is provided with a telescopic part, which is telescopically connected to the semi-enclosed shell, and the PLC system is connected to the telescopic part for control.

[0019] The aforementioned wave-avoiding and anti-collision chain bucket unloader has multiple rubber sheets, which are flexible in structure.

[0020] In the aforementioned wave-avoiding and anti-collision chain bucket unloader, multiple rubber sheets are arranged in a mesh pattern.

[0021] In the aforementioned wave-avoiding and anti-collision chain bucket unloader, the rubber sheet adopts a rhomboid structure, and the rubber sheet includes corner points A, B, C and D connected in sequence. Corner point A is connected to the bottom of the bucket, and the side between corner point A and corner point B is parallel to the line where the bucket opening is located.

[0022] In the aforementioned wave-avoiding and anti-collision chain bucket unloader, the thickness of the rubber sheet increases sequentially from corner A to corner D.

[0023] In the aforementioned wave-avoiding and anti-collision chain bucket unloader, the thickness increases sequentially from corner B to corner D, and the thickness also increases sequentially from corner C to corner D.

[0024] The aforementioned wave-avoiding and anti-collision chain bucket unloader uses a force sensor as its sensing device.

[0025] The aforementioned wave-avoiding and anti-collision chain bucket unloader, wherein the data module of the PLC system includes data on the feeding depth of materials with different characteristics and design protection values ​​for changes in force difference.

[0026] Compared with the prior art, the advantages of this utility model are:

[0027] (1) Improved wave avoidance capability: Through the semi-enclosed shell and fast-response sensing device, the chain bucket unloader's wave avoidance capability under severe sea conditions is significantly improved, ensuring the continuity and safety of unloading operations.

[0028] (2) Reduce equipment wear: The high-strength flexible rubber and the expansion design of the shell reduce the impact of waves on the unloader structure and reduce equipment wear in harsh sea conditions.

[0029] (3) Extend equipment service life: By reducing equipment damage and wear, this technical solution can extend the service life of the chain bucket unloader.

[0030] (4) Improved unloading efficiency: The optimized hopper design and PLC system control make the feeding depth adjustment of the chain bucket unloader more precise for materials with different characteristics, thus improving the unloading efficiency.

[0031] (5) Reduce environmental pollution: The semi-enclosed shell optimizes the control of dust during the material unloading process, reduces environmental pollution, and meets the environmental protection requirements of modern ports. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the telescopic part of the semi-enclosed shell of this utility model after it has been retracted.

[0034] Figure 3 This is a schematic diagram of the semi-enclosed outer shell, the open end, and the flexible rubber layer of this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the hopper and rubber sheet of this utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the rubber sheet of this utility model;

[0037] Figure 6 This is a schematic diagram showing the control relationship between the PLC system of this utility model and the drive sprocket, sensing device, and telescopic part.

[0038] Reference numerals: 1-PLC system, 2-chain bucket, 3-hopper, 4-semi-enclosed shell, 5-rubber sheet, 6-drive sprocket, 7-sensing device, 8-flexible rubber layer, 9-corner A, 10-corner B, 11-corner C, 12-corner D, 13-open end.

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0040] Embodiment 1 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is connected to the PLC system 1 for control. The bucket chain is wound around the drive sprocket 6. A semi-enclosed shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed shell 4 for control. The sensing device 7 is connected to the PLC system 1 for control. The opening end 13 of the semi-enclosed shell 4 is provided with a telescopic structure.

[0041] Embodiment 2 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is connected to the PLC system 1 for control. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4 for control. The sensing device 7 is connected to the PLC system 1 for control. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4.

[0042] Embodiment 3 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is controlled and connected to the PLC system 1. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4. The sensing device 7 is controlled and connected to the PLC system 1. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. A telescopic part is provided at the opening end 13 of the semi-enclosed outer shell 4. The telescopic part is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is controlled and connected to the telescopic part.

[0043] Embodiment 4 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is controlled and connected to the PLC system 1. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4. The sensing device 7 is controlled and connected to the PLC system 1. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. A telescopic part is provided at the opening end 13 of the semi-enclosed outer shell 4. The telescopic part is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is controlled and connected to the telescopic part. Multiple rubber sheets 5 are provided, and the rubber sheets 5 adopt a flexible structure.

[0044] Embodiment 5 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is controlled and connected to the PLC system 1. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4. The sensing device 7 is controlled and connected to the PLC system 1. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. A telescopic part is provided at the opening end 13 of the semi-enclosed outer shell 4. The telescopic part is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is controlled and connected to the telescopic part. Multiple rubber sheets 5 are provided. The rubber sheets 5 adopt a flexible structure. The multiple rubber sheets 5 are arranged in a mesh.

[0045] Embodiment 6 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader, comprising a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is controlled and connected to the PLC system 1. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4. The sensing device 7 is controlled and connected to the PLC system 1. A telescopic knot is provided at the opening end 13 of the semi-enclosed outer shell 4. The semi-enclosed outer shell 4 has a flexible rubber layer 8 on its outer surface. The opening end 13 of the semi-enclosed outer shell 4 has a telescopic section, which is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is connected to the telescopic section for control. Multiple rubber sheets 5 are provided, and the rubber sheets 5 have a flexible structure. The multiple rubber sheets 5 are arranged in a mesh pattern. The rubber sheets 5 have a rhomboid structure and include sequentially connected corner points A 9, B 10, C 11, and D 12. Corner point A 9 is connected to the bottom of the hopper 3, and the edge between corner point A 9 and corner point B 10 is parallel to the line where the opening of the hopper 3 is located.

[0046] Embodiment 7 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is connected to the PLC system 1 for control. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4 for control. The sensing device 7 is connected to the PLC system 1 for control. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the surface; the opening end 13 of the semi-enclosed shell 4 is provided with a telescopic part, which is telescopically connected to the semi-enclosed shell 4, and the PLC system 1 is controlled and connected to the telescopic part; multiple rubber sheets 5 are provided, and the rubber sheets 5 adopt a flexible structure; the multiple rubber sheets 5 are arranged in a mesh; the rubber sheets 5 adopt a rhomboid structure, and the rubber sheet 5 includes corner points A 9, B 10, C 11 and D 12 connected in sequence. Corner point A 9 is connected to the bottom of the hopper 3, and the edge between corner point A 9 and corner point B 10 is parallel to the line where the opening of the hopper 3 is located; the thickness of the rubber sheet 5 increases sequentially from corner point A 9 to corner point D 12.

[0047] Embodiment 8 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is connected to the PLC system 1 for control. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4 for control. The sensing device 7 is connected to the PLC system 1 for control. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. The opening end 13 is provided with a telescopic part, which is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is connected to the telescopic part for control. Multiple rubber sheets 5 are provided, and the rubber sheets 5 adopt a flexible structure. The multiple rubber sheets 5 are arranged in a mesh. The rubber sheets 5 adopt a rhomboid structure and include corner points A 9, B 10, C 11 and D 12 connected in sequence. Corner point A 9 is connected to the bottom of the hopper 3, and the edge between corner point A 9 and corner point B 10 is parallel to the line where the opening of the hopper 3 is located. The thickness of the rubber sheet 5 increases sequentially from corner point A 9 to corner point D 12. The thickness increases sequentially from corner point B 10 to corner point D 12, and the thickness increases sequentially from corner point C 11 to corner point D 12.

[0048] Embodiment 9 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is connected to the PLC system 1 for control. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4 for control. The sensing device 7 is connected to the PLC system 1 for control. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. The device is equipped with a telescopic section, which is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is connected to the telescopic section for control. Multiple rubber sheets 5 are provided, and each rubber sheet 5 has a flexible structure. The multiple rubber sheets 5 are arranged in a mesh pattern. Each rubber sheet 5 has a rhomboid structure and includes sequentially connected corner points A9, B10, C11, and D12. Corner point A9 is connected to the bottom of the hopper 3, and the edge between corner points A9 and B10 is parallel to the line where the opening of the hopper 3 is located. The thickness of the rubber sheet 5 increases sequentially from corner point A9 to corner point D12; the thickness increases sequentially from corner point B10 to corner point D12; and the thickness increases sequentially from corner point C11 to corner point D12. The sensing device 7 is a force sensor.

[0049] Embodiment 10 of this utility model: A wave-avoiding and collision-resistant chain bucket unloader includes a chain bucket unloader 2 and a PLC system 1. The chain bucket unloader 2 includes a drive sprocket 6, a bucket chain, and buckets 3. The drive sprocket is controlled and connected to the PLC system 1. The bucket chain is wound around the drive sprocket 6. A semi-enclosed outer shell 4 is provided on the outside of the chain bucket unloader 2. Part of the buckets 3 are exposed at the opening end 13 of the semi-enclosed outer shell 4. A rubber sheet 5 is provided at the bottom of the buckets 3. A sensing device 7 is provided inside the semi-enclosed outer shell 4 and is controlled and connected to the PLC system 1. The opening end 13 of the semi-enclosed outer shell 4 is provided with a telescopic structure. A flexible rubber layer 8 is provided on the outer surface of the semi-enclosed outer shell 4. A telescopic part is provided at the opening end 13 of the semi-enclosed outer shell 4, and the telescopic part is telescopically connected to the semi-enclosed outer shell 4. The PLC system 1 is connected to the telescopic control unit. Multiple rubber sheets 5 are provided, and each rubber sheet 5 has a flexible structure. These multiple rubber sheets 5 are arranged in a mesh pattern. Each rubber sheet 5 has a rhomboid structure and includes sequentially connected corner points A9, B10, C11, and D12. Corner point A9 is connected to the bottom of the hopper 3, and the edge between corner points A9 and B10 is parallel to the line where the hopper 3 opening is located. The thickness of the rubber sheet 5 increases sequentially from corner point A9 to corner point D12; the thickness increases sequentially from corner point B10 to corner point D12; and the thickness increases sequentially from corner point C11 to corner point D12. The sensing device 7 is a force sensor. The data module of the PLC system 1 includes data on the feeding depth of materials with different characteristics and design protection values ​​for changes in force difference.

[0050] The working principle of one embodiment of this utility model:

[0051] When this utility model is in operation:

[0052] The first step is to start the chain bucket unloader 2 and perform initial settings: Before the chain bucket unloader 2 starts operating, the operator will set the number of hoppers 3 exposed in the semi-enclosed outer shell 4 according to the working environment and material characteristics, and ensure that the high-strength flexible rubber sheet 5 is correctly installed on the outside of the semi-enclosed outer shell 4. At the same time, the PLC system 1 and the force sensor will perform self-checks to ensure that all sensors and actuators are in normal working condition.

[0053] The second step is real-time monitoring and data analysis: During operation, the force sensor inside the semi-enclosed shell 4 monitors the contact pressure between the chain bucket and the material pile in real time. This data is transmitted to the PLC system 1, which processes the data according to a preset algorithm to adjust the feeding depth of the chain bucket and maintain a constant pressure contact state.

[0054] The third step is to sense and respond to surges: When the chain bucket unloader 2 encounters a surge, the fast-response sensing device will immediately detect the change in the external environment. Once the change in force difference detected by the force sensor reaches the design protection value, the PLC system 1 will react quickly.

[0055] Step 4: Extension and Retraction of the Semi-Enclosed Housing 4: The PLC system 1 controls the extension and retraction of the semi-enclosed housing 4 to rapidly extend and retract. Upon detecting a surge, the housing quickly transitions from a semi-enclosed state to a fully enclosed state to protect the chain bucket and hopper 3 from direct impact from the waves.

[0056] Fifth, the protective function of the rubber mesh structure: At the bottom of the chain bucket hopper 3, the high-strength flexible rubber sheet 5 arranged in the mesh structure lifts up along the line where corner A 9 and corner D 12 are located during the digging process. When encountering a surge, the mesh structure formed by the multiple rubber sheets 5 collides with the material pile, effectively offsetting the force on the chain bucket and reducing damage to the chain bucket.

[0057] Step 6, restore normal operation: After the surge, PLC system 1 will determine whether the external environment has returned to safety based on the feedback signals from the sensors. Once it is safe, the system will control the shell to return from a fully enclosed state to a semi-enclosed state, and the chain bucket unloader 2 will continue to carry out unloading operations.

[0058] Step 7, Continuous monitoring and adjustment: Throughout the unloading process, PLC system 1 continuously monitors the contact pressure between the chain bucket and the material pile, and adjusts the working status of the chain bucket based on real-time data to ensure the continuity and safety of the unloading operation.

[0059] Through the above steps, this utility model can effectively protect the chain bucket unloader 2 to operate stably in harsh sea conditions, reduce equipment damage, and improve operational efficiency and safety.

Claims

1. A wave-avoiding and collision-resistant chain bucket unloader, comprising a chain bucket (2) and a PLC system (1), characterized in that, The chain bucket (2) includes a drive sprocket (6), a bucket chain, and a bucket (3). The drive sprocket is connected to the PLC system (1) for control. The bucket chain is wound around the drive sprocket (6) for connection. A semi-enclosed shell (4) is provided on the outside of the chain bucket (2). Part of the bucket (3) is exposed at the opening end (13) of the semi-enclosed shell (4). A rubber sheet (5) is provided at the bottom of the bucket (3). A sensing device (7) is provided inside the semi-enclosed shell (4). The sensing device (7) is connected to the PLC system (1) for control. A telescopic structure is provided at the opening end (13) of the semi-enclosed shell (4).

2. The wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The outer surface of the semi-enclosed shell (4) is provided with a flexible rubber layer (8).

3. The wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The semi-enclosed housing (4) has an extension part at its open end (13), which is telescopically connected to the semi-enclosed housing (4), and the PLC system (1) is connected to the extension part for control.

4. The wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The rubber sheet (5) is provided in multiple pieces, and the rubber sheet (5) adopts a flexible structure.

5. The wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The multiple rubber sheets (5) are arranged in a mesh.

6. The wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The rubber sheet (5) adopts a rhomboid structure. The rubber sheet (5) includes corner points A (9), B (10), C (11) and D (12) connected in sequence. Corner point A (9) is connected to the bottom of the hopper (3). The side between corner point A (9) and corner point B (10) is parallel to the line where the opening of the hopper (3) is located.

7. A wave-avoiding and collision-resistant chain bucket unloader according to claim 6, characterized in that, The thickness of the rubber sheet (5) increases sequentially from corner A (9) to corner D (12).

8. A wave-avoiding and collision-resistant chain bucket unloader according to claim 6, characterized in that, The thickness increases sequentially from corner B (10) to corner D (12), and the thickness increases sequentially from corner C (11) to corner D (12).

9. A wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The sensing device (7) is a force sensor.

10. A wave-avoiding and collision-resistant chain bucket unloader according to claim 1, characterized in that, The data module of the PLC system (1) includes data on the feeding depth of materials with different characteristics and data on the design protection value of the force difference change.

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