Unloading machine and unloading machine feed system

Abstract

The utility model discloses an unloading machine conveying system and unloading machine relates to unloading equipment technical field, in order to solve the problem of high energy consumption and key components easy to damage that exist in the traditional single board type arc door in the unloading operation, the system includes: frame is equipped with the receiving hopper on the frame, the metering hopper is located in the frame, has at least two bins, and each bin has a feed inlet and a discharge outlet, and the discharge outlet of the bin is located above the feed inlet of the receiving hopper, the discharge valve is open and close and is equipped in the discharge outlet of the bin, the drive arrangement is equipped in the frame, and the output end of drive arrangement is connected the discharge valve, is used for controlling the opening and closing of discharge valve, so setting, reduce the static pressure of material to single -leaf small arc door, thereby reduce the friction and material static pressure that single drive arrangement needs to overcome when opening single -leaf small arc door, reduce energy consumption, make the wear and tear of drive arrangement, bearing and door shaft etc. key components slow down simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of ship unloading equipment technology, and more specifically, to a ship unloading machine material conveying system and a ship unloading machine. Background Technology

[0002] In the bulk cargo logistics industry, bulk materials such as ores, coal, and grains are important raw materials for national economic production, and their loading and unloading efficiency and environmental performance are crucial to the operation of the entire logistics system. With the rapid development of the industry towards high efficiency, environmental protection, reliability, and intelligence, the traditional design of ship unloader hopper gates has gradually revealed many problems, especially in terms of energy consumption and equipment performance.

[0003] In bulk cargo unloading operations, traditional ship unloaders typically employ a single-plate arc-shaped gate design for the hopper. However, when the hopper is full of material, this single-plate arc-shaped gate must withstand enormous static pressure. To open this gate, the drive unit must instantly overcome the immense frictional force and static pressure of the material, placing extremely high demands on its power. This high-load operation not only leads to a significant increase in energy consumption, but frequent high-load starts also accelerate the wear of critical components such as the drive unit, bearings, and gate hinges, shortening component lifespan, increasing maintenance costs and downtime, and severely impacting the efficiency and economy of unloading operations.

[0004] Therefore, how to solve the problems of high energy consumption and easy damage to key components in the unloading operation of traditional single-panel arc gates is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a material conveying system for a ship unloader that can reduce the static pressure of materials on a single small arc gate, reduce the friction and static pressure of materials that a single drive device needs to overcome when opening a single small arc gate, reduce energy consumption, and at the same time slow down the wear of key components such as drive devices, bearings and gate shafts.

[0006] Another objective of this invention is to provide a ship unloader that includes the above-mentioned ship unloader material conveying system, which can improve unloading efficiency, reduce operating costs, and enhance equipment durability.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A material conveying system for a ship unloader includes:

[0009] The frame is equipped with a receiving hopper;

[0010] The metering hopper, mounted on the frame, has at least two hoppers, each with an inlet and an outlet, with the outlet of the hopper located above the inlet of the receiving hopper.

[0011] A discharge valve, which can be opened and closed, is located at the discharge port of the silo;

[0012] The drive unit is mounted on the frame. The output end of the drive unit is connected to the discharge valve to control the opening and closing of the discharge valve.

[0013] Preferably, there are four silos, and the inlets of the four silos form a grid-like structure.

[0014] Preferably, the discharge valve includes a double door located at the discharge port of the silo, the top of the double door being rotatably connected to the silo, so that the bottom of the double door moves in a direction that approaches or moves away from each other, in order to close and open the discharge port of the silo.

[0015] Preferably, the double doors include a driving arc door and a driven arc door, which are driven by gear meshing. One end of the driving device is hinged to the frame, and the other end is hinged to the driving arc door.

[0016] Preferably, both the driving arc gate and the driven arc gate are bowl-shaped structures, and the cutting edges of both the driving arc gate and the driven arc gate are provided with sealing structures. The driving arc gate and the driven arc gate are staggered in the unloading direction so that the sealing structure of the driven arc gate covers the outside of the sealing structure of the driving arc gate.

[0017] Preferably, the driving arc door and the driven arc door are wear-resistant steel plate doors, and multiple reinforcing ribs are provided on the outer side of the driving arc door and the driven arc door.

[0018] Preferably, the driving device is a hydraulic cylinder, which controls the oil inlet and outlet through an electro-hydraulic proportional valve. The hydraulic cylinder is equipped with a proximity switch for detecting its own stroke. Both the proximity switch and the electro-hydraulic proportional valve are connected to the controller signal.

[0019] Preferably, it also includes a weighing device, which is mounted on the frame and connected to the weighing hopper. The weighing device is used to detect the weight of the material in the weighing hopper in real time and send the measured information to the controller.

[0020] Preferably, it also includes a receiving system, a windbreak wall, and a vibrating feeder. The receiving system is located at the top of the metering hopper, the windbreak wall is located on the outer periphery of the top of the metering hopper, the vibrating feeder is located in the receiving hopper, and the discharge port of the receiving hopper is connected to the belt conveyor through a three-way discharge pipe.

[0021] A ship unloader includes a ship unloader material conveying system as described in any of the preceding claims.

[0022] The material conveying system for a ship unloader provided by this utility model includes a frame, a receiving hopper, a metering hopper, and a discharge valve. Specifically, the receiving hopper, the metering hopper, and the drive device are all mounted on the frame. The frame provides a stable support platform for the entire material conveying system, ensuring the stability and reliability of the system. The metering hopper is located above the receiving hopper. By adding the metering hopper, the two form a two-stage receiving system, which helps to achieve a smoother and more continuous material flow, thereby improving the efficiency of the ship unloading operation.

[0023] The metering hopper has at least two hoppers, each with an inlet and an outlet. The outlet of each hopper is located above the inlet of the receiving hopper. A discharge valve is located at the outlet of each hopper. By dividing a metering hopper into multiple independent hoppers and equipping each hopper with an independent discharge valve, it is equivalent to replacing the traditional single-plate arc gate with multiple small arc gates. This allows the material filling the metering hopper to be distributed across the multiple small arc gates, significantly reducing the static pressure of the material on a single small arc gate. The output end of the drive unit is connected to the discharge valve to control its opening and closing. When multiple small arc gates are set, the friction and static pressure that a single drive unit needs to overcome when opening a single small arc gate are greatly reduced, thereby reducing the drive power requirement and energy consumption. Due to the reduction in the friction and static pressure that the drive unit needs to overcome when opening the small arc gates, the wear of key components such as the drive unit, bearings, and gate hinges is slowed down. This helps to extend the service life of these components, reduce maintenance costs and downtime, and also improve the reliability of the entire ship unloader material conveying system. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the material conveying system for the ship unloader provided by this utility model;

[0026] Figure 2 This is a partially enlarged view of the unloader material conveying system provided by this utility model;

[0027] Figure 3 This is a top view of the metering hopper of the unloading machine material conveying system provided by this utility model;

[0028] Figure 4 This is a schematic diagram of the drive arc gate of the unloader material conveying system provided by this utility model;

[0029] Figure 5 This is a schematic diagram of the driven arc gate of the unloader material conveying system provided by this utility model.

[0030] Figure label:

[0031] 1-Rack;

[0032] 2-Receiving hopper;

[0033] 3-Measuring hopper, 31-Binding bin;

[0034] 4-Discharge valve, 41-Driven arc gate, 42-Driven arc gate, 43-Sealing structure, 44-Reinforcing rib;

[0035] 5-Drive unit;

[0036] 6-Weighing device;

[0037] 7- Vibrating feeder;

[0038] 8-Tee feed pipe;

[0039] 9-Belt conveyor. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] It should be noted that the directional terms such as "up" and "down" in the following text are defined based on the accompanying drawings in the instruction manual.

[0043] The core of this invention is to provide a material conveying system for a ship unloader that reduces the static pressure of material on a single small arc gate, reduces the friction and static pressure that a single drive unit 5 needs to overcome when opening the single small arc gate, lowers energy consumption, and simultaneously reduces wear on key components such as the drive unit 5, bearings, and gate hinges. Another core aspect of this invention is to provide a ship unloader that includes the aforementioned material conveying system, which improves unloading efficiency, reduces operating costs, and enhances equipment durability.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 A material conveying system for a ship unloader includes a frame 1, a receiving hopper 2, a metering hopper 3, and a discharge valve 4.

[0045] Specifically, the receiving hopper 2, the metering hopper 3, and the drive device 5 are all mounted on the frame 1. The frame 1 provides a stable support platform for the entire unloading machine material conveying system, ensuring the stability and reliability of the system. The metering hopper 3 is located above the receiving hopper 2. By adding the metering hopper 3, the two form a two-stage receiving system, which helps to achieve a smoother and more continuous material flow, thereby improving the efficiency of unloading operations.

[0046] The metering hopper 3 has at least two hoppers 31, each with an inlet and an outlet. The outlet of the hopper 31 is located above the inlet of the receiving hopper 2. A discharge valve 4 is closable at the outlet of the hopper 31. By dividing a metering hopper 3 into multiple independent hoppers 31 and equipping each hopper 31 with an independent discharge valve 4, it is equivalent to replacing the traditional single-panel arc door with multiple small arc doors. This allows the material filling the metering hopper 3 to be distributed across the multiple small arc doors, significantly reducing the static pressure of the material on a single small arc door. The output end of the drive device 5 is connected to... The discharge valve 4 is used to control the opening and closing of the discharge valve 4. When multiple small arc gates are set, the friction and static pressure of the material that a single drive device 5 needs to overcome when opening a single small arc gate are greatly reduced, thereby reducing the drive power requirement and energy consumption. Since the friction and static pressure that the drive device 5 needs to overcome when opening the small arc gate are reduced, the wear of key components such as the drive device 5, bearings and door shafts is slowed down. This helps to extend the service life of these components, reduce maintenance costs and downtime, and also improve the reliability of the entire ship unloader material conveying system.

[0047] The unloader material conveying system designed in the above manner can reduce the static pressure of the material on the single small arc gate, reduce the friction and static pressure of the material that a single drive device 5 needs to overcome when opening the single small arc gate, reduce energy consumption, and at the same time reduce the wear of key components such as drive device 5, bearings and door hinges.

[0048] In the above embodiment, there are four silos 31, and the feed inlets of the four silos 31 form a grid-shaped structure.

[0049] It should be noted that, specifically, the upper part of the weighing hopper 3 adopts a four-gate structure, and the discharge outlet at the lower part of the weighing hopper 3 is divided into four parts. One large radial gate is divided into four small radial gates, and the material filled in the hopper is distributed on the four small radial gates. The static pressure generated by the material acting on the four small radial gates is reduced, so the friction and material static pressure that the driving device 5 needs to overcome instantaneously to open a single small radial gate are correspondingly reduced, the power of the driving device 5 can be reduced, and the corresponding energy consumption is also reduced. This four-gate structure solves the problem of unstable flow change when a single gate discharges material. Through the sequential opening of the four small radial gates, ordered control of the material flow is realized, thereby ensuring the stability of the material flow and avoiding possible flow fluctuations when a single gate discharges material. The four silos 31 can discharge materials simultaneously or alternately, this parallel processing method improves the overall efficiency of ship unloading operation, shortens the operation cycle, provides a more stable material flow path, helps maintain the stability of the entire system, and reduces vibration and impact caused by unstable material flow.

[0050] In a feasible embodiment, there are two silos 31, and the feed inlets of the two silos 31 form an I-shaped structure. Specifically, the upper part of the weighing hopper 3 adopts a two-gate structure, and the discharge outlet at the lower part of the weighing hopper 3 is divided into two parts. One large radial gate is divided into two small radial gates, and the material filled in the hopper is distributed on the two small radial gates. The static pressure generated by the material acting on the two small radial gates is reduced, so the friction and material static pressure that the driving device 5 needs to overcome instantaneously to open a single small radial gate are correspondingly reduced, the power of the driving device 5 can be reduced, and the corresponding energy consumption is also reduced. This two-gate structure solves the problem of unstable flow change when a single gate discharges material. Through the sequential opening of the two small radial gates, ordered control of the material flow is realized, thereby ensuring the stability of the material flow and avoiding possible flow fluctuations when a single gate discharges material.

[0051] Wherein, in practical application, two, three, four or more silos 31 can be provided, which is not limited herein. The structure formed by the feed inlets of a plurality of silos 31 is also not limited.

[0052] In the above situation, the discharge valve 4 comprises double opposite doors arranged at the discharge outlet of the silo 31, the top of the double opposite doors is rotatably connected with the silo 31, so that the bottom of the double opposite doors move toward directions approaching each other or departing from each other to close and open the discharge outlet of the silo 31.

[0053] Understandably, the double-door design allows operators to precisely control material flow by adjusting the door's opening degree, thus achieving refined management of material discharge. Each double door can be controlled independently, providing greater operational flexibility and enabling adjustments to material discharge from each hopper 31 according to operational needs. The rotating connection of the double doors reduces friction between the doors and hoppers 31, thereby reducing component wear, extending component lifespan, and reducing maintenance costs.

[0054] Please refer to Figure 2 , Figure 4 and Figure 5 The double-leaf door includes a driving arc door 41 and a driven arc door 42. The driving arc door 41 and the driven arc door 42 are driven by gear meshing. One end of the driving device 5 is hinged to the frame 1, and the other end is hinged to the driving arc door 41.

[0055] It should be noted that the drive gate 41 rotates around the frame 1 via the drive device 5 to perform opening and closing movements. The drive gate 41 and the driven gate 42 are driven by gear meshing, ensuring that the driven gate 42 rotates synchronously. This ensures that the drive gate 41 and the driven gate 42 open and close synchronously, guaranteeing uniform opening of the discharge port of the hopper 31 and thus achieving uniform material discharge. The gear transmission system can effectively transmit driving force to the driven gate 42, maintaining stable opening and closing movements even under high material pressure, reducing the power requirement of the drive device 5. The gear transmission provides a stable transmission ratio, making the opening and closing movements of the gates smoother and improving the stability of the entire system.

[0056] Among them, one end of the driving arc gate 41 and the driven arc gate 42 are rotatably connected to the frame 1 through a rotating shaft, and the other end moves in the direction of approaching each other and moving away from each other.

[0057] In the above embodiments, both the driving arc gate 41 and the driven arc gate 42 are bowl-shaped structures. The cutting edges of both the driving arc gate 41 and the driven arc gate 42 are provided with sealing structures 43. The driving arc gate 41 and the driven arc gate 42 are staggered in the unloading direction so that the sealing structure 43 of the driven arc gate 42 covers the outside of the sealing structure 43 of the driving arc gate 41.

[0058] Understandably, the bowl-shaped structure combined with the sealing structure 43 improves the sealing effect when the arc gate is closed, effectively preventing material leakage and ensuring the environmental friendliness and efficiency of material conveying. The bowl-shaped structure is usually made of wear-resistant materials, which can resist wear during frequent opening and closing operations, extending the service life of the arc gate. The staggered design prevents material from being trapped, allowing the sealing structure 43 of the driven arc gate 42 to cover the sealing structure 43 of the driving arc gate 41, improving the sealing effect and reducing material leakage.

[0059] Specifically, the sealing structure 43 is a sealing plate, and multiple sealing plates are provided, which are respectively set on the cutting edges of the driving arc gate 41 and the driven arc gate 42.

[0060] Based on the above embodiment, the driving arc door 41 and the driven arc door 42 are wear-resistant steel plate doors, and multiple reinforcing ribs 44 are provided on the outer side of the driving arc door 41 and the driven arc door 42.

[0061] It should be noted that the main bodies of the driving arc gate 41 and the driven arc gate 42 are meticulously crafted from wear-resistant steel plates. This material choice significantly enhances the durability of the arc gates, thereby effectively extending their service life, reducing the need for frequent component replacements due to wear, and greatly reducing the frequency and labor intensity of maintenance work. Consequently, component replacement costs are reduced, and delays in unloading operations caused by downtime for maintenance are minimized, ensuring maximum throughput capacity of the terminal. Furthermore, the outer sides of the driving arc gate 41 and the driven arc gate 42 are equipped with multiple reinforcing ribs 44, enhancing the structural strength of the arc gates and enabling them to better withstand and resist the impact and static pressure generated when materials fall, thus improving the reliability of the system.

[0062] In the above embodiment, the driving device 5 is a hydraulic cylinder. The hydraulic cylinder controls the oil inlet and outlet through an electro-hydraulic proportional valve. The hydraulic cylinder is equipped with a proximity switch for detecting its own stroke. Both the proximity switch and the electro-hydraulic proportional valve are connected to the controller signal.

[0063] Understandably, the electro-hydraulic proportional valve can precisely control the inlet and outlet oil volume of the hydraulic cylinder, enabling fine adjustment of the opening and closing speeds of the driving gate 41 and the driven gate 42, thus improving the system's control accuracy. Precise control of the hydraulic cylinder through the electro-hydraulic proportional valve reduces energy waste, achieving energy efficiency, especially in applications requiring rapid opening and slow closing of the gate. The proximity switch detects the stroke of the hydraulic cylinder, ensuring the accuracy of gate opening and closing and preventing equipment damage caused by excessive stroke. The signal connection between the proximity switch and the electro-hydraulic proportional valve and the controller enables automated system control, improving operational convenience and system intelligence.

[0064] A high-pressure hydraulic cylinder is installed on one side of the drive gate 41. One end of the cylinder is hinged to the frame 1, and the other end is connected to the gate body. The hydraulic station uses an electro-hydraulic proportional valve to control the oil inlet and outlet of the hydraulic cylinder, thereby precisely adjusting the opening and closing speed of the gate. When the gate needs to be opened quickly to adapt to high-frequency operations, the electro-hydraulic proportional valve will increase the opening degree and increase the oil flow, so that the opening and closing speed of the gate can reach 0.5 m / s. When the gate approaches the target position, for example, when the opening degree reaches 90%, the electro-hydraulic proportional valve will reduce the opening degree and reduce the speed to 0.1 m / s based on the judgment of the proximity switch, so as to prevent the occurrence of "overshooting" or "slamming shut" phenomena, ensuring the smoothness and safety of operation. In addition, the lower parts of the drive gate 41 and the driven gate 42 are designed to be staggered vertically, which effectively prevents materials from being trapped when the gate is closed. The blades of the two curved doors are covered, and a labyrinth design is used in the overlapping area to form multiple sealing lines. This design greatly improves the sealing effect and effectively prevents powdery materials from leaking from the blades of the curved doors, thus meeting environmental protection requirements.

[0065] In a preferred embodiment, a weighing device 6 is also included. The weighing device 6 is mounted on the frame 1 and connected to the weighing hopper 3. The weighing device 6 is used to detect the weight of the material in the weighing hopper 3 in real time and send the measured information to the controller.

[0066] It should be noted that the weighing device 6 can detect the weight of the material in the metering hopper 3 in real time, ensuring the accuracy of material measurement, and feeds the measured material weight back to the controller in real time. The controller can then adjust the discharge speed in a timely manner to avoid over- or under-discharge, thereby improving work efficiency. The connection between the weighing device 6 and the controller enables the system to achieve a higher level of automation, automatically adjusting the opening and closing of the discharge valve 4 to adapt to different material flow requirements.

[0067] The weighing device 6 includes a load cell, a damping system, and a weight calibration system. The load cell provides high-precision weight measurement, ensuring accurate material measurement and helping to reduce over- or under-discharge, thereby reducing material waste and improving material utilization. The damping system helps to quickly stabilize the load cell reading, improving the system's response speed to changes in material weight and enhancing system stability and reliability. The weight calibration system provides an accurate method for periodically calibrating the load cell, ensuring long-term measurement accuracy.

[0068] In the above case, it also includes a receiving system, a windbreak wall and a vibrating feeder 7. The receiving system is located at the top of the metering hopper 3, the windbreak wall is located on the outer periphery of the top of the metering hopper 3, the vibrating feeder 7 is located at the receiving hopper 2, and the discharge port of the receiving hopper 2 is connected to the belt conveyor 9 through a three-way discharge pipe 8.

[0069] It should be noted that the receiving system is located at the top of the weighing hopper 3, which helps to receive materials unloaded from the ship more effectively and improves receiving efficiency. A windbreak wall is located on the outer perimeter of the top of the weighing hopper 3 to prevent materials from scattering due to wind or other factors during the receiving process, reducing material loss. The windbreak wall also helps to reduce the spread of material dust, lowering environmental pollution and improving the environmental performance of the work site. The vibrating feeder 7 is located in the receiving hopper 2, helping to stabilize material flow, prevent blockages, and ensure smooth entry of materials into the subsequent conveying system. The discharge port of the receiving hopper 2 is connected to the belt conveyor 9 via a three-way discharge pipe 8, which improves material conveying efficiency and ensures that materials are quickly and continuously transported to the designated location. The vibrating feeder 7 can adjust the vibration intensity according to the characteristics of the material, enhancing the system's adaptability to different materials. The design of the vibrating feeder 7 is generally easy to maintain and clean, helping to reduce maintenance costs and downtime. By stabilizing material flow and preventing material scattering, safety risks during operation can be reduced, improving operational safety.

[0070] This ship unloader's material conveying system is a highly integrated device composed of several key components, including a receiving system, a windbreak wall, a metering hopper 3, a discharge valve 4, a receiving hopper 2, a vibrating feeder 7, a three-way discharge pipe 8, and a dock conveyor belt 9. These components work together to ensure that materials are efficiently and orderly unloaded from the ship to the stockyard. The unloading process begins with the opening of the grab bucket, from which material falls into the upper metering hopper 3. Subsequently, through precise control of the orderly opening of four small arc gates, the material is guided smoothly from the upper metering hopper 3 to the lower receiving hopper 2. In this process, the vibrating feeder 7 plays a crucial role, ensuring that the material flows evenly and continuously, avoiding blockages and uneven discharge. Next, the material passes through the three-way discharge pipe 8, a cleverly designed component that allows the material to smoothly transfer between different directions. Finally, the material is conveyed to the dock conveyor belt 9, the key link connecting the dock to the downstream stockyard, which smoothly delivers the material into the stockyard, completing the entire unloading process. Overall, this ship unloader material handling system achieves high efficiency and order in material unloading, while reducing potential material losses and environmental pollution during the unloading process. It ensures the continuity of terminal operations and the convenience of yard management. It not only improves the efficiency of ship unloading operations but also optimizes the quality of material handling, providing a solid foundation for the efficient operation of the terminal.

[0071] This system utilizes a multi-module coordinated response mechanism to meet the unloading needs of the grab bucket. When the grab bucket is fully loaded with material and moves towards the metering hopper 3, the controller receives the grab bucket's position signal and triggers the "pre-opening" command of the arc gate to prepare for unloading. The grab bucket enters the metering hopper 3 to begin unloading. Simultaneously, the weighing device 6 monitors the material flow rate in real time. Based on the detected data, the controller dynamically controls the arc gate and issues corresponding commands to adjust the unloading speed. The arc gate's drive device 5 then starts, and the hydraulic cylinders of the four arc gates execute the opening action in a preset sequence, ensuring that the arc gates open smoothly at a predetermined speed. Once the grab bucket has finished unloading and the material in the upper metering hopper 3 has circulated completely, the weighing device 6 will issue an empty-load signal. After receiving the signal, the controller will delay for a period of time and then control the arc gates to slowly close, ensuring that the material is completely unloaded. When the arc gates are completely closed, the proximity switch inside the cylinder will be triggered, and the hydraulic accumulator will maintain pressure, putting the system into standby mode to prepare for the next unloading cycle. Through the above steps, the arc gate structure enables efficient and orderly unloading operations, which not only improves the efficiency of unloading operations but also ensures the safety and reliability of the operation.

[0072] In summary, the unloading machine material conveying system provided by this utility model achieves efficient and orderly unloading operations by responding to the unloading needs of the grab bucket through multi-module coordinated response, which significantly improves the efficiency of unloading operations.

[0073] In addition to the unloader material conveying system disclosed in the above embodiments, this utility model also provides an unloader that includes the above-mentioned unloader material conveying system. For the structure of other parts of the unloader, please refer to the prior art, which will not be described in detail here.

[0074] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0075] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0076] The above provides a detailed description of the unloading machine material conveying system and the unloading machine itself. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A material conveying system for a ship unloader, characterized in that, include: A frame (1) is provided with a receiving hopper (2). Measuring hopper (3), located on the frame (1), has at least two hoppers (31), each of the hoppers (31) having an inlet and an outlet, the outlet of the hopper (31) being located above the inlet of the receiving hopper (2); A discharge valve (4) is provided at the discharge port of the silo (31) and can be opened and closed; A drive device (5) is provided on the frame (1). The output end of the drive device (5) is connected to the discharge valve (4) to control the opening and closing of the discharge valve (4).

2. The unloader material conveying system according to claim 1, characterized in that, The hopper (31) is provided with four, and the inlets of the four hoppers (31) form a grid-like structure.

3. The unloader material conveying system according to claim 1, characterized in that, The discharge valve (4) includes a double door located at the discharge port of the silo (31). The top of the double door is rotatably connected to the silo (31), so that the bottom of the double door moves in a direction that is close to or away from each other, so as to close and open the discharge port of the silo (31).

4. The unloader material conveying system according to claim 3, characterized in that, The double doors include a driving arc door (41) and a driven arc door (42). The driving arc door (41) and the driven arc door (42) are driven by gear meshing. One end of the driving device (5) is hinged to the frame (1), and the other end is hinged to the driving arc door (41).

5. The unloader material conveying system according to claim 4, characterized in that, Both the driving arc gate (41) and the driven arc gate (42) are bowl-shaped structures. Both the driving arc gate (41) and the driven arc gate (42) have sealing structures (43) on their cutting edges. The driving arc gate (41) and the driven arc gate (42) are staggered in the unloading direction so that the sealing structure (43) of the driven arc gate (42) covers the outside of the sealing structure (43) of the driving arc gate (41).

6. The unloader material conveying system according to claim 5, characterized in that, The driving arc door (41) and the driven arc door (42) are wear-resistant steel plate doors, and multiple reinforcing ribs (44) are provided on the outside of the driving arc door (41) and the driven arc door (42).

7. The unloading machine material conveying system according to any one of claims 1-6, characterized in that, The driving device (5) is a hydraulic cylinder. The hydraulic cylinder controls the oil inlet and outlet through an electro-hydraulic proportional valve. The hydraulic cylinder is equipped with a proximity switch for detecting its own stroke. Both the proximity switch and the electro-hydraulic proportional valve are connected to the controller signal.

8. The unloader material conveying system according to claim 7, characterized in that, It also includes a weighing device (6), which is located on the frame (1) and connected to the metering hopper (3). The weighing device (6) is used to detect the weight of the material in the metering hopper (3) in real time and send the measured information to the controller.

9. The unloader material conveying system according to claim 8, characterized in that, It also includes a vibrating feeder (7), which is located in the receiving hopper (2), and the discharge port of the receiving hopper (2) is connected to the belt conveyor (9) through a three-way discharge pipe (8).

10. A ship unloader, characterized in that, Includes the unloading machine material conveying system as described in any one of claims 1-9.

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