Ship unloader with double grabs and conveying structure

Abstract

The utility model provides a ship unloader with double grab bucket and conveying structure, including the shore -to -ship crane of installation to the wharf, be provided with the main girder of the shore -to -ship crane outside the wharf, first grab bucket top and second grab bucket top are provided with movable carrier and U type movable frame respectively, movable carrier and U type movable frame all are connected with the main girder sliding, movable carrier and U type movable frame all are connected with the steel wire rope structure on the shore -to -ship crane, movable carrier and U type movable frame and the sliding position of main girder are in contact with the bristle of cleaning brush, U type movable frame is provided with the empty slot for first grab bucket to pass through, the auxiliary beam is set up on the shore -to -ship crane, and the auxiliary beam is located in the wharf, and the conveying assembly includes the side plate of fixed installation to the auxiliary beam, the conveying assembly one side is provided with the material inlet, and the material inlet is connected with the drive part. Through conveying assembly and double grab bucket cooperate and unload, play the role of improving the unloading efficiency, avoid grab bucket to move in and out of the wharf, waste a lot of time.

Description

Technical Field

[0001] This utility model relates to the field of ship unloaders, and in particular to a ship unloader with a double grab bucket and a conveying structure. Background Technology

[0002] Ship unloaders are specialized machines used in ports and docks to efficiently unload bulk materials.

[0003] Ship unloaders use their grab buckets to grab materials from cargo ships, and a wire rope structure drives the grab buckets to rise, fall, and move horizontally, allowing them to enter the dock for unloading. In traditional ship unloaders, the grab buckets need to move back and forth inside and outside the dock, and this horizontal movement consumes a significant amount of unloading time, resulting in poor unloading efficiency. Furthermore, most current ship unloaders use a single grab bucket design, which also leads to inefficient unloading. Utility Model Content

[0004] This invention provides a ship unloader with a double grab bucket and a conveying structure to solve the technical problem of poor unloading efficiency and inability to unload ships quickly.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions: This utility model provides a ship unloader with a double grab bucket and a conveying structure, including a quay crane installed on a wharf, the quay crane having a main beam extending beyond the wharf; it also includes: a first grab bucket and a second grab bucket, the top of the first grab bucket and the top of the second grab bucket respectively having a movable carrier and a U-shaped movable frame; both the movable carrier and the U-shaped movable frame are slidably connected to the main beam, and both the movable carrier and the U-shaped movable frame are connected to a wire rope structure on the quay crane; a brushing assembly, each of the movable carrier and the U-shaped movable frame having a brushing assembly, the brushing assembly having a cleaning brush; the sliding position of the movable carrier and the U-shaped movable frame relative to the main beam is in contact with the bristles of the cleaning brush; the U-shaped movable frame has a slot for the first grab bucket to pass through. The system includes: an auxiliary beam, which is mounted on the quay crane and located within the wharf; a conveying assembly, which includes a side plate fixedly installed on the auxiliary beam; a feed end on one side of the conveying assembly, connected to a driving component; a conveying surface on the top of the conveying assembly; a receiving hopper, fixedly installed above the feed end of the conveying assembly; a driving component for extending the feed end of the conveying assembly and the receiving hopper together outside the wharf or retracting them into the wharf; a telescopic cover, which is fitted onto the conveying surface of the conveying assembly; one end of the telescopic cover is fixedly connected to the bottom side of the receiving hopper, and the other end of the telescopic cover is fixed to the side plate; a discharge hopper is connected to the telescopic cover; and a ground belt conveyor is located below the discharge hopper.

[0006] Preferably, a second slide rail and a third slide rail are fixedly installed on the inner and outer sides of the main beam, respectively; a third slide block is installed on the U-shaped movable frame, and a second slide block is installed on the movable carrier; the second slide block is slidably connected to the second slide rail, and the third slide block is slidably connected to the third slide rail.

[0007] Preferably, the inlet end of the conveying assembly includes a movable seat; a first slide is fixedly installed at the bottom of the movable seat, the first slide is slidably connected to a first slide rail fixedly installed on the side plate, a first belt roller and a second belt roller are rotatably installed on the movable seat, a third belt roller, a fourth belt roller, a fifth belt roller and a sixth belt roller are rotatably installed on the side plate, and a conveyor belt is wound on the first belt roller, the second belt roller, the third belt roller, the fourth belt roller, the fifth belt roller and the sixth belt roller; a motor is fixedly installed on the side plate, and the output shaft end of the motor is fixedly connected to the fifth belt roller; the receiving hopper is fixedly connected to the movable seat through a first fixed frame.

[0008] Preferably, the driving component includes an end frame; the end frame is fixedly connected to a side plate, at least one driving member is fixedly installed on one side of the end frame, the output end of the driving member is fixedly connected to an end seat, and the end seat is fixedly connected to a movable seat.

[0009] Preferably, the telescopic cover includes an inner cover and an outer cover; both the outer cover and the inner cover have openings at the bottom, one end of the inner cover is fixedly connected to one side of the bottom of the receiving hopper, the outer cover is fixed to the side plate by a second fixing bracket, both the inner cover and the outer cover have openings at the bottom, the outer cover is slidably fitted onto the outer wall of the inner cover, and the end of the inner cover inside the outer cover is also open; the end of the outer cover away from the receiving hopper is fixedly connected to the discharge hopper, the discharge hopper has openings on one side and at the bottom, and the side opening of the discharge hopper is fitted to the conveyor belt between the fourth belt roller and the fifth belt roller.

[0010] Preferably, brushing components are provided on both sides of the second slide and both sides of the third slide. The bristles on the cleaning brushes of the brushing components on both sides of the second slide are in contact with the second slide rail, and the bristles on the cleaning brushes of the brushing components on both sides of the third slide are in contact with the third slide rail.

[0011] Preferably, the brush assembly includes a third fixed frame; the third fixed frame is fixedly connected to a U-shaped movable frame and a movable carrier, and a sleeve is fixedly installed on the third fixed frame. The sleeve is fitted and connected to the brush holder of the cleaning brush. A plug-in part is provided on one side of the sleeve, and the plug-in part is inserted into a slot opened on the side of the brush holder.

[0012] Preferably, the insertion part includes a plug, which is slidably sleeved with a sliding sleeve disposed on one side of the sleeve. One end of the plug is inserted into the slot, and the other end of the plug is fixedly installed with a carrier strip. One side of the carrier strip is elastically connected to the side wall of the sleeve by a spring.

[0013] Preferably, a magnetic block is fixedly installed inside the slot, and the insertion post is an iron post, which is magnetically connected to the magnetic block.

[0014] Preferably, a protective cover is fixedly installed on one side of the carrier strip, and a rubber pad is fixedly installed on the edge of the protective cover away from the carrier strip.

[0015] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0016] The positive and progressive effects of this utility model are as follows: The aforementioned ship unloader with dual grab buckets and a conveyor structure unloads materials through the coordinated operation of the conveyor assembly and the dual grab buckets. The first and second grab buckets only grab the material, while the conveyor assembly handles the transport of the material to the ground conveyor belt within the dock, thus improving unloading efficiency and preventing the grab buckets from moving around inside and outside the dock, wasting considerable time. Simultaneously, the second grab bucket is equipped with a U-shaped movable frame with a slot for the first grab bucket to pass through, allowing the first and second grab buckets to alternately grab materials from the cargo ship and discharge them into the receiving container. The hoppers do not interfere with each other; furthermore, the feed end and receiving hopper of the conveying component are retractable, extending outside the dock and close to the receiving hopper during use, and retracting inside the dock after unloading; even further, a brush sweeping component is provided, which can clean the second and third guide rails that provide guidance when the first and second grab hoppers move on the main beam, preventing dust and foreign objects from causing wear during sliding on the second and third guide rails; at the same time, the cleaning brushes on them are designed to be easy to disassemble and replace when damaged. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the conveying component of this utility model when it extends outside the dock.

[0018] Figure 2 This is a schematic diagram of the overall structure of the conveying component of this utility model when it is retracted into the dock.

[0019] Figure 3 This is a schematic diagram of the structure of the first grab hopper, the second grab hopper, and the main beam of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure on both sides of the bottom of the movable carrier frame of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure on both sides of the U-shaped movable frame of this utility model.

[0022] Figure 6 This is a structural schematic diagram of the movable frame, U-shaped movable frame and main beam of this utility model.

[0023] Figure 7 This is a schematic diagram of the structure of the brushing component of this utility model.

[0024] Figure 8 This is a schematic diagram of the installation structure of the cleaning brush of this utility model.

[0025] Figure 9 This is a schematic diagram of the structure of the carrier strip and protective cover of this utility model.

[0026] Figure 10 This is a schematic diagram of the conveying assembly of this utility model.

[0027] Figure 11 This is a schematic diagram of the conveying component of this utility model in its extended state.

[0028] Figure 12 This is a schematic diagram of the conveying component of this utility model in its retracted state.

[0029] Figure 13 This is a schematic diagram of the structure of the movable seat, slide, and slide rail of this utility model.

[0030] Explanation of reference numerals in the attached figures 1. Dock; 2. Cargo ship; 3. Quay crane; 4. Main beam; 5. First grab hopper; 6. Second grab hopper; 7. U-shaped movable frame; 8. Conveying assembly; 801. Side plate; 802. Movable seat; 803. Motor; 804. First belt roller; 805. Conveyor belt; 806. Second belt roller; 807. Third belt roller; 808. Fourth belt roller; 809. Fifth belt roller; 810. Sixth belt roller; 811. First slide block; 812. First slide rail; 813. Scraper; 9. Receiving hopper; 10. Discharging hopper; 11. Ground belt conveyor; 12. Guide hopper; 13. First fixed frame; 14. Second fixed frame; 15. Telescopic cover; 1501. Inner cover; 1502. Outer cover; 16. Drive component; 1601. Drive component; 1602. End seat; 1603. End frame; 17. Movable carrier; 18. Second slide; 19. Third slide; 20. Brush assembly; 2001. Third fixed frame; 2002. Sleeve; 2003. Cleaning brush; 2004. Sliding sleeve; 2005. Insert post; 2006. Carrier bar; 2007. Spring; 2008. Slot; 2009. Magnetic block; 2010. Protective cover; 2011. Rubber pad; 21. Second slide rail; 22. Third slide rail. Detailed Implementation

[0031] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0032] like Figures 1-13 As shown, the ship unloader, featuring a double grab bucket and conveying structure, includes a quay crane 3 installed on the dock 1, with a main beam 4 extending beyond the dock 1 on the quay crane 3; it also includes: The first grab hopper 5 and the second grab hopper 6 are respectively provided with a movable frame 17 and a U-shaped movable frame 7 at the top of the first grab hopper 5 and the top of the second grab hopper 6; Both the movable frame 17 and the U-shaped movable frame 7 are slidably connected to the main beam 4, and both the movable frame 17 and the U-shaped movable frame 7 are connected to the wire rope structure on the quay crane 3. The brush and sweeping assembly 20 is provided on both the movable carrier 17 and the U-shaped movable frame 7, and the brush and sweeping assembly 20 is provided with a cleaning brush 2003; The sliding positions of the movable carrier 17 and the U-shaped movable frame 7 with the main beam 4 are in contact with the bristles of the cleaning brush 2003; The U-shaped movable frame 7 is provided with a slot for the first grab hopper 5 to pass through; such as Figures 1-2 As shown, when the first grab hopper 5 and the second grab hopper 6 move to the highest position, the first grab hopper 5 is at the same height as the empty slot in the U-shaped movable frame 7. When the two move along the length of the main beam 4, the first grab hopper 5 can pass through the empty slot, so that the two can alternately grab materials in the cargo ship 2 and discharge them into the receiving hopper 9, and the two will not interfere with each other.

[0033] The auxiliary beam is mounted on the quay crane 3 and is located inside the wharf 1; the auxiliary beam is connected to an additional support frame (not shown in the figure), and the support frame and the quay crane 3 are fixed together to the bottom traveling structure.

[0034] The conveying assembly 8 includes a side plate 801 fixedly installed on the auxiliary beam; a feeding end is provided on one side of the conveying assembly 8, and a driving component 16 is connected to the feeding end; a conveying surface is provided on the top of the conveying assembly 8. The receiving hopper 9 is fixedly installed above the inlet end of the conveying assembly 8; The driving component 16 is used to drive the feed end of the conveying assembly 8 and the receiving hopper 9 to extend out of the dock 1 or retract into the dock 1 together. Telescopic cover 15 is attached to the conveying surface of the conveying assembly 8; one end of the telescopic cover 15 is fixedly connected to the bottom side of the receiving hopper 9, and the other end of the telescopic cover 15 is fixed to the side plate 801; the telescopic cover 15 is connected to the discharge hopper 10; a ground belt conveyor 11 is provided below the discharge hopper 10.

[0035] A guide hopper 12 is installed on the side of the ground belt conveyor 11. The bottom end of the guide hopper 12 is located above the belt of the ground belt conveyor 11, while the top end of the guide hopper 12 is located directly below the discharge hopper 10. The discharge hopper 10 discharges material into the guide hopper 12, and the guide hopper 12 guides the material onto the belt of the ground belt conveyor 11.

[0036] In practical implementation, the first grab hopper 5 and the second grab hopper 6 are connected by a wire rope structure, while a traveling structure is installed on the quay crane 3. The traveling structure is used to move the entire quay crane 3 along the shore of the wharf 1 and adjust the position of the quay crane 3 in the length direction of the cargo ship 2. After the cargo ship 2 docks, the first grab hopper 5 and the second grab hopper 6 are moved up and down by the wire rope structure, so that the first grab hopper 5 and the second grab hopper 6 can enter the cargo ship 2 to grab materials, and after grabbing materials, they can return to the high position. At the same time, the wire rope structure is also used to move the first grab hopper 5 and the second grab hopper 6 along the length direction of the main beam 4, adjust the position of the first grab hopper 5 and the second grab hopper 6 in the width direction of the cargo ship 2, and grab materials at different width positions.

[0037] This design incorporates a double-hopper system, consisting of a conveying assembly 8, a first grab hopper 5, and a second grab hopper 6. During unloading from the cargo ship 2, the inlet end of the conveying assembly 8 and the receiving hopper 9 extend beyond the dock 1, close to the unloading positions of the first and second grab hoppers at a width relative to the cargo ship 2. After the first and second grab hoppers grab the material, they do not need to move into the dock 1 for unloading. Figure 1 As shown, the material can be directly discharged into the receiving hopper 9, and the conveying component 8 will transport the material to the ground belt conveyor 11 to improve the unloading efficiency.

[0038] After unloading is completed, the inlet end of the conveying component 8 and the receiving hopper 9 are retracted together into the dock 1 by the drive component, as shown below. Figure 2 As shown.

[0039] like Figures 3-5 As shown, the inner and outer sides of the main beam 4 are respectively fixedly installed with a second slide rail 21 and a third slide rail 22; a third slide block 19 is installed on the U-shaped movable frame 7, and a second slide block 18 is installed on the movable carrier 17; the second slide block 18 is slidably connected to the second slide rail 21, and the third slide block 19 is slidably connected to the third slide rail 22.

[0040] When the wire rope structure drives the U-shaped movable frame 7 and the movable carrier 17 to move on the main beam 4, the sliding between the second slide block 18 and the second slide rail 21 provides movement guidance for the movable carrier 17, and the sliding between the third slide block 19 and the third slide rail 22 provides movement guidance for the U-shaped movable frame 7.

[0041] like Figures 10-13As shown, the feeding end of the conveying assembly 8 includes a movable seat 802; a first slide block 811 is fixedly installed at the bottom of the movable seat 802, and the first slide block 811 is slidably connected to a first slide rail 812 fixedly installed on the side plate 801; a first belt roller 804 and a second belt roller 806 are rotatably installed on the movable seat 802; a third belt roller 807, a fourth belt roller 808, a fifth belt roller 809, and a sixth belt roller 810 are rotatably installed on the side plate 801; a conveyor belt 805 is wound around the first belt roller 804, the second belt roller 806, the third belt roller 807, the fourth belt roller 808, the fifth belt roller 809, and the sixth belt roller 810; a motor 803 is fixedly installed on the side plate 801, and the output shaft end of the motor 803 is fixedly connected to the fifth belt roller 809; the receiving hopper 9 is fixedly connected to the movable seat 802 through a first fixed frame 13.

[0042] The first grab hopper 5 and the second grab hopper 6 move above the receiving hopper 9 and discharge material into the receiving hopper 9. The material then falls onto the conveyor belt 805 on the feeding end, that is, onto the conveyor belt 805 on the side of the first belt roller 804 near the dock 1.

[0043] The conveyor belt 805 located between the first belt roller 804 and the fifth belt roller 809 constitutes the conveying surface of the conveying assembly 8. The material falls onto the conveyor belt 805 on the side of the first belt roller 804 near the dock 1. The motor 803 drives the fifth belt roller 809 to rotate. Together with the first belt roller 804, the conveyor belt 805, the second belt roller 806, the third belt roller 807, the fourth belt roller 808, the fifth belt roller 809, and the sixth belt roller 810, they form a belt drive, which causes the conveyor belt 805 to transport the material towards the discharge hopper 10. After the material enters the discharge hopper 10, it is discharged from the bottom of the discharge hopper 10 and enters the ground belt conveyor 11.

[0044] Among them, a scraper 813 is attached to the outer side of the conveyor belt 805 between the fourth belt roller 808 and the sixth belt roller 810, such as Figures 11-12 As shown, when the conveyor belt 805 is conveying materials, the materials fall from the discharge hopper 10 onto the ground belt conveyor 11, and some materials will adhere to the conveyor belt 805. The conveyor belt 805 passes by the scraper 813, and the scraper 813 scrapes off the adhered materials to achieve removal.

[0045] like Figures 11-12 As shown, the driving component 16 includes an end frame 1603; the end frame 1603 is fixedly connected to the side plate 801, and at least one driving member 1601 is fixedly installed on one side of the end frame 1603. The output end of the driving member 1601 is fixedly connected to an end seat 1602, and the end seat 1602 is fixedly connected to the movable seat 802.

[0046] The drive unit 1601 can adopt any translational and telescopic drive form such as gear rack, hydraulic cylinder, air cylinder or traveling trolley.

[0047] The drive unit 1601 moves the movable seat 802, causing the movable seat 802 and the first belt roller 804 and second belt roller 806 on the movable seat 802 to extend outside or retract inside the dock 1. The drive unit 1601 causes the movable seat 802 to extend from the dock 1 by different lengths, adapting to the material grabbing needs of the first grabbing hopper 5 and the second grabbing hopper 6 at different width positions on the cargo ship 2, ensuring that the feeding end and the receiving hopper 9 are always close to the unloading position of the cargo ship 2. The slide rail and slide block provide guidance for the movement of the movable seat 802.

[0048] like Figures 10-13 As shown, the telescopic cover 15 includes an inner cover 1501 and an outer cover 1502; both the bottom of the outer cover 1502 and the inner cover 1501 are open, one end of the inner cover 1501 is fixedly connected to one side of the bottom of the receiving hopper 9, and the outer cover 1502 is fixed to the side plate 801 by the second fixing bracket 14. Both the bottom of the inner cover 1501 and the outer cover 1502 are open, and the outer cover 1502 is slidably sleeved onto the outer wall of the inner cover 1501, and the end of the inner cover 1501 located inside the outer cover 1502 is also open; the end of the outer cover 1502 away from the receiving hopper 9 is fixedly connected to the discharge hopper 10, and the discharge hopper 10 has openings on one side and at the bottom. The side opening of the discharge hopper 10 is attached to the conveyor belt 805 between the fourth belt roller 808 and the fifth belt roller 809.

[0049] When materials are conveyed on the conveyor belt 805, they are surrounded and blocked by the telescopic cover 15 to prevent them from falling off the edge of the conveyor belt 805 and to ensure that the materials are only conveyed into the discharge hopper 10.

[0050] like Figures 4-5 As shown, brushing components 20 are provided on both sides of the second slide 18 and both sides of the third slide 19. The bristles on the cleaning brushes 2003 of the brushing components 20 on both sides of the second slide 18 are in contact with the second slide rail 21, and the bristles on the cleaning brushes 2003 of the brushing components 20 on both sides of the third slide 19 are in contact with the third slide rail 22.

[0051] With the cleaning brush 2003 in place, when the second slide block 18 slides on the second slide rail 21 and the third slide block 19 slides on the third slide rail 22, the cleaning brush 2003 of the brushing assembly 20 brushes the second slide rail 21 and the third slide rail 22 to clean them, thus preventing increased wear on the second slide block 18 and the second slide rail 21 and the third slide block 19 and the third slide rail 22 due to dust and dirt.

[0052] like Figures 7-8As shown, the brush assembly 20 includes a third fixed frame 2001; the third fixed frame 2001 is fixedly connected to the U-shaped movable frame 7 and the movable carrier 17, and a sleeve 2002 is fixedly installed on the third fixed frame 2001. The sleeve 2002 is fitted and connected to the brush seat of the cleaning brush 2003. A plug-in part is provided on one side of the sleeve 2002, and the plug-in part is plugged into the slot 2008 opened on the side of the brush seat.

[0053] like Figure 8 As shown, the insertion part includes a pin 2005, which is slidably sleeved with a sliding sleeve 2004 disposed on one side of the sleeve 2002. One end of the pin 2005 is inserted into the slot 2008, and the other end of the pin 2005 is fixedly mounted with a carrier strip 2006. One side of the carrier strip 2006 is elastically connected to the side wall of the sleeve 2002 by a spring 2007. The two ends of the spring 2007 are fixed to the carrier strip 2006 and the side wall of the sleeve 2002, respectively.

[0054] The insertion part facilitates the replacement of the cleaning brush 2003 after its bristles are damaged. During replacement, by pulling the carrier bar 2006 and the insertion post 2005, the insertion post 2005 slides against the sliding sleeve 2004 to be pulled out of the slot 2008, and the spring 2007 is stretched to release the positioning of the cleaning brush 2003. Then, pulling the cleaning brush 2003 separates it from the sleeve 2002, thus achieving disassembly. Next, the brush holder of the new cleaning brush 2003 is inserted into the sleeve 2002, aligning the slot 2008 on the brush holder with the insertion post 2005. The carrier bar 2006 and the insertion post 2005 are then released, and the tension of the spring 2007 causes the insertion post 2005 to be inserted into the slot 2008, thus achieving installation. The above operations facilitate convenient replacement.

[0055] like Figure 8 As shown, a magnet 2009 is fixedly installed inside the slot 2008, and the insertion post 2005 is an iron post, which is magnetically connected to the magnet 2009. Through this design, when the insertion post 2005 is inserted into the slot 2008, the magnet 2009 magnetically attracts the insertion post 2005, increasing the stability of the insertion.

[0056] In such Figure 8 In the indicated state, the insertion post 2005 is inserted into the slot 2008. In this state, the spring 2007 is stretched, and the spring force of the spring 2007 presses the insertion post 2005 firmly into the slot 2008. Combined with magnetic attraction, this further increases the stability of the insertion. Simultaneously... Figure 8 In the state shown, the spring 2007 is not fully stretched. Pulling the insert 2005 to pull it out of the slot 2008 can further stretch the spring 2007.

[0057] like Figure 8 As shown, a protective cover 2010 is fixedly installed on one side of the carrier strip 2006, and a rubber pad 2011 is fixedly installed on the edge of the protective cover 2010 away from the carrier strip 2006.

[0058] In such Figure 8 In the indicated state, the protective cover 2010 has an opening on the side away from the carrier strip 2006, and the rubber pad 2011 on the opening is in contact with the sleeve 2002, thus closing the protective cover 2010 to protect the spring 2007. The protective cover 2010 is also provided without affecting the movement of the insertion post 2005; when the insertion post 2005 is pulled out of the slot 2008, the protective cover 2010 can move along with the insertion post 2005.

[0059] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A ship unloader with a double grab bucket and a conveying structure, comprising a quay crane (3) installed on a wharf (1), wherein the quay crane (3) is provided with a main beam (4) extending beyond the wharf (1); characterized in that, Also includes: The first grab hopper (5) and the second grab hopper (6) are respectively provided with a movable carrier (17) and a U-shaped movable frame (7) on the top of the first grab hopper (5) and the top of the second grab hopper (6). The movable frame (17) and the U-shaped movable frame (7) are both slidably connected to the main beam (4), and the movable frame (17) and the U-shaped movable frame (7) are both connected to the wire rope structure on the quay crane (3); The brushing assembly (20) is provided on both the movable carrier (17) and the U-shaped movable frame (7), and the brushing assembly (20) is provided with a cleaning brush (2003). The sliding positions of the movable carrier (17) and the U-shaped movable frame (7) with the main beam (4) are in contact with the bristles of the cleaning brush (2003); The U-shaped movable frame (7) is provided with a slot for the first grab hopper (5) to pass through; Auxiliary beam, which is set on the quay crane (3) and located inside the wharf (1); The conveying assembly (8) includes a side plate (801) fixedly installed on the auxiliary beam; a feeding end is provided on one side of the conveying assembly (8), and a driving component (16) is connected to the feeding end; a conveying surface is provided on the top of the conveying assembly (8); The receiving hopper (9) is fixedly installed above the inlet end of the conveying assembly (8); The drive component (16) is used to drive the feed end and the receiving hopper (9) of the conveying assembly (8) to extend out of the dock (1) or retract into the dock (1); Telescopic cover (15) is attached to the conveying surface of the conveying assembly (8); one end of the telescopic cover (15) is fixedly connected to the bottom side of the receiving hopper (9), and the other end of the telescopic cover (15) is fixed to the side plate (801); the telescopic cover (15) is connected to the discharge hopper (10); a ground belt conveyor (11) is provided below the discharge hopper (10).

2. The ship unloader with double grab buckets and conveying structure as described in claim 1, characterized in that: The inner and outer sides of the main beam (4) are respectively fixedly installed with a second slide rail (21) and a third slide rail (22); a third slide block (19) is installed on the U-shaped movable frame (7), and a second slide block (18) is installed on the movable frame (17); the second slide block (18) is slidably connected to the second slide rail (21), and the third slide block (19) is slidably connected to the third slide rail (22).

3. The ship unloader with double grab buckets and conveying structure as described in claim 1, characterized in that: The feed end of the conveying assembly (8) includes a movable seat (802); a first slide (811) is fixedly installed at the bottom of the movable seat (802), the first slide (811) is slidably connected to a first slide rail (812) fixedly installed on the side plate (801), a first belt roller (804) and a second belt roller (806) are rotatably installed on the movable seat (802), and a third belt roller (807), a fourth belt roller (808), a fifth belt roller (809) and a third belt roller (809) are rotatably installed on the side plate (801). The sixth belt roller (810) is provided with a conveyor belt (805) wound around the first belt roller (804), the second belt roller (806), the third belt roller (807), the fourth belt roller (808), the fifth belt roller (809), and the sixth belt roller (810); a motor (803) is fixedly installed on the side plate (801), and the output shaft end of the motor (803) is fixedly connected to the fifth belt roller (809); the receiving hopper (9) is fixedly connected to the movable seat (802) through the first fixed frame (13).

4. The ship unloader with double grab buckets and conveying structure as described in claim 3, characterized in that: The drive component (16) includes an end frame (1603); the end frame (1603) is fixedly connected to the side plate (801), and at least one drive element (1601) is fixedly installed on one side of the end frame (1603). The output end of the drive element (1601) is fixedly connected to an end seat (1602), and the end seat (1602) is fixedly connected to the movable seat (802).

5. The ship unloader with double grab buckets and conveying structure as described in claim 3, characterized in that: The telescopic cover (15) includes an inner cover (1501) and an outer cover (1502); both the outer cover (1502) and the inner cover (1501) have openings at the bottom. One end of the inner cover (1501) is fixedly connected to one side of the bottom of the receiving hopper (9). The outer cover (1502) is fixed to the side plate (801) by a second fixing bracket (14). Both the inner cover (1501) and the outer cover (1502) have openings at the bottom. The inner cover (1501) is slidably sleeved onto the outer wall of the inner cover (1501), and the inner cover (1501) is also open at one end inside the outer cover (1502); the outer cover (1502) is fixedly connected to the discharge hopper (10) at one end away from the receiving hopper (9), and the discharge hopper (10) is provided with openings on one side and at the bottom, and the side opening of the discharge hopper (10) is attached to the conveyor belt (805) between the fourth belt roller (808) and the fifth belt roller (809).

6. The ship unloader with double grab buckets and conveying structure as described in claim 2, characterized in that: Brushing components (20) are provided on both sides of the second slide (18) and both sides of the third slide (19). The bristles on the cleaning brushes (2003) of the brushing components (20) on both sides of the second slide (18) are in contact with the second slide rail (21), and the bristles on the cleaning brushes (2003) of the brushing components (20) on both sides of the third slide (19) are in contact with the third slide rail (22).

7. The ship unloader with double grab buckets and conveying structure as described in claim 6, characterized in that: The brush assembly (20) includes a third fixed frame (2001); the third fixed frame (2001) is fixedly connected to the U-shaped movable frame (7) and the movable carrier (17), and a sleeve (2002) is fixedly installed on the third fixed frame (2001). The sleeve (2002) is fitted and connected to the brush seat of the cleaning brush (2003). A plug-in part is provided on one side of the sleeve (2002), and the plug-in part is plugged into the slot (2008) opened on the side of the brush seat.

8. The ship unloader with double grab buckets and conveying structure as described in claim 7, characterized in that: The insertion part includes a plug (2005), which is slidably sleeved with a sliding sleeve (2004) disposed on one side of the sleeve (2002). One end of the plug (2005) is inserted into the slot (2008), and the other end of the plug (2005) is fixedly installed with a carrier strip (2006). One side of the carrier strip (2006) is elastically connected to the side wall of the sleeve (2002) by a spring (2007).

9. The ship unloader with double grab buckets and conveying structure as described in claim 8, characterized in that: A magnetic block (2009) is fixedly installed inside the slot (2008), and the insert (2005) is an iron post, which is magnetically connected to the magnetic block (2009).

10. The ship unloader with double grab buckets and conveying structure as described in claim 8, characterized in that: A protective cover (2010) is fixedly installed on one side of the carrier strip (2006), and a rubber pad (2011) is fixedly installed on the edge of the protective cover (2010) away from the carrier strip (2006).

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