Ship unloader hopper connection structure and material taking device and ship unloader

Abstract

The present invention relates to the technical field of ship unloading mechanical devices, and specifically to a ship unloader hopper connection structure, a material taking device, and a ship unloader. The hopper connection structure includes: a hopper connection plate, which is suitable for being movably connected between two adjacent hoppers, and a plurality of hoppers are sequentially connected end to end through the hopper connection plate to form a hopper chain; an engagement hole, the engagement hole being formed on the hopper connection plate, and the drive sprocket of the ship unloader meshing with the engagement hole to realize the meshing transmission between the drive sprocket and the hopper chain. The hopper connection structure provided by the present invention eliminates the traditional chain transmission, adopts the hopper connection plate to connect the various hoppers, and utilizes the hopper chain composed of the hopper connection plate and the hoppers for transmission, so that the hopper is both a working mechanism for digging materials and participates in the transmission as part of the hopper chain, thereby increasing the force-bearing area, improving reliability, and facilitating replacement and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of ship unloading mechanical devices, and in particular to a ship unloader hopper connection structure, a material taking device and a ship unloader. Background Art

[0002] Ship unloaders are executive equipment used for loading and unloading bulk materials. Currently, traditional ship unloaders are mostly bridge-type grab ship unloaders. Due to the environmental problems such as material leakage and dust generation caused by their use, the efficiency of each unit is low and the energy utilization efficiency is low, there are many limitations.

[0003] like Figure 1 As shown, the conventional L-shaped chain bucket ship unloader solves environmental issues such as material spillage. However, the reclaiming mechanism of the conventional chain bucket ship unloader utilizes a chain drive. Two chains are distributed on either side of the reclaiming mechanism, and the reclaiming hopper is mounted between the two chains. The drive mechanism drives the hopper by driving the chains. This transmission method places high demands on the chain performance. Moreover, the chain is prone to severe friction with the material during reclaiming, causing chain damage and requiring regular replacement, which increases the workload. Furthermore, when replacing the chain, the entire chain must be replaced, resulting in high maintenance costs. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the chain bucket ship unloader in the prior art that the material chain adopts a whole chain design, which is easy to damage, has low reliability and high maintenance cost, thereby providing a ship unloader hopper connection structure, material reclaiming device and ship unloader with high reliability and low maintenance cost.

[0005] In order to solve the above problems, in a first aspect of the present invention, a ship unloader hopper connection structure is provided, the hopper connection structure comprising:

[0006] A hopper connecting plate is adapted to be movably connected between two adjacent hoppers, and a plurality of hoppers are sequentially connected end to end via the hopper connecting plate to form a hopper chain;

[0007] An engagement hole is formed on the hopper connecting plate, and the driving sprocket of the ship unloader is engaged with the engagement hole to realize the engagement transmission between the driving sprocket and the hopper chain.

[0008] Optionally, the hopper is provided with an ear plate suitable for hinged engagement with the hopper connecting plate, and the engaging hole is a through hole opened on the hopper connecting plate.

[0009] Optionally, the ear plate includes an upper ear plate and a lower ear plate provided at the upper and lower ends of the hopper;

[0010] The hopper comprises a hopper back plate and two hopper side plates located on both sides of the hopper back plate, and the upper ear plate and the lower ear plate are respectively provided on the two hopper side plates.

[0011] Optionally, the upper and lower ends of the hopper connecting plate are respectively formed with open slots for accommodating the ear plates;

[0012] The lower ear plate of one of the two adjacent hoppers is inserted into the open groove on the upper end of the hopper connecting plate, and the upper ear plate of the other hopper is inserted into the open groove on the lower end of the hopper connecting plate, and they are respectively hinged and fixed by a pin shaft connection mechanism.

[0013] Optionally, the opening slot includes a first side wall and a second side wall that are oppositely arranged, and the pin connection mechanism includes:

[0014] A hinge pin, the hinge pin sequentially passing through the shaft holes on the first side wall, the ear plate, and the second side wall;

[0015] A limiting member, wherein both ends of the hinge pin are respectively provided with positioning holes that cooperate with the limiting member, and the limiting member passes through the positioning hole and stops outside the first side wall and the second side wall to achieve limiting and fixing of the ear plate and the hopper connecting plate.

[0016] Optionally, the pin connection mechanism further includes:

[0017] The fixing sleeve is located on both sides of the hopper connecting plate, and the two ends of the hinge pin shaft pass through the fixing sleeve respectively. The limiting member passes through the fixing sleeve and the hinge pin shaft in sequence to connect and fix the hinge pin shaft.

[0018] Optionally, the limiting member includes a pin and / or a rivet and / or a screw.

[0019] Optionally, the hopper connecting plate comprises a hopper connecting plate body having an H-shaped longitudinal cross section;

[0020] The opening grooves at the upper and lower ends of the hopper connecting plate body are respectively hinged and fixed to the ear plates of two adjacent hoppers, and a meshing hole that matches the gear teeth of the driving sprocket is opened in the middle of the hopper connecting plate body.

[0021] In order to solve the above problems, in a second aspect of the present invention, a material taking device is further provided, the material taking device comprising:

[0022] Chain bucket arm;

[0023] A hopper chain is formed by connecting a plurality of hoppers end to end in sequence through the above-mentioned hopper connection structure, and the hopper chain is arranged around the periphery of the chain bucket arm;

[0024] A driving unit, comprising a driving sprocket, wherein the gear teeth on the outer periphery of the driving sprocket engage with the engagement holes on the hopper connecting plate to drive the hopper chain to operate relative to the chain bucket arm;

[0025] A rotary shaft, hingedly connected to the chain bucket arm, the chain bucket arm being adapted to swing about the rotary shaft;

[0026] The force direction of the bucket chain when digging materials is parallel to the rotation plane of the chain bucket arm.

[0027] In order to solve the above problems, in a third aspect of the present invention, a ship unloader is further provided, the ship unloader comprising:

[0028] boom;

[0029] A running trolley is provided on the arm and is adapted to move along the length direction of the arm;

[0030] And the above-mentioned material-taking device is installed on the running trolley, and the running direction of the running trolley is parallel to the rotation plane of the chain bucket arm.

[0031] The present invention has the following advantages:

[0032] 1. The hopper connection structure of the ship unloader provided by the present invention eliminates the traditional chain transmission, adopts a hopper connecting plate to connect the various hoppers, and uses the hopper chain composed of the hopper connecting plate and the hopper back plate for transmission. In this way, the hopper is both a working mechanism for digging materials and participates in the transmission as part of the hopper chain, which increases the force-bearing area, improves reliability, and facilitates replacement and maintenance.

[0033] 2. The ship unloader hopper connection structure provided by the present invention utilizes a hopper chain consisting of a hopper connecting plate and a hopper back plate for transmission. This significantly reduces the spacing between hoppers, allowing for near-continuous material transport and significantly improving material retrieval efficiency. It also makes the overall structure more compact and lighter. This effectively solves the problem of conventional ship unloaders using a full chain drive, where two adjacent hoppers must be fixed to two separate chain links. These links are connected by an intermediate link, resulting in a large spacing between the two adjacent hoppers.

[0034] 3. The ship unloader hopper connection structure provided by the present invention features a drive sprocket or redirecting sprocket acting on a hopper connecting plate. The hopper connecting plate is connected to the hopper lugs via a pin connection mechanism and is located outside the hopper. This prevents interference with the hopper during driving or redirection. Furthermore, the hopper connecting plate is made of high-strength material, effectively ensuring reliability during hopper chain driving or redirection.

[0035] 4. The material-retrieving device provided by the present invention is equipped with a rotating shaft so that the chain bucket arm is suitable for swinging around the rotating shaft; and the force direction of the bucket chain when digging materials is parallel to the rotating plane of the chain bucket arm, thereby ensuring that the main load on the material-retrieving device is within the plane where the material-retrieving device is located, the force is more reasonable, the operating reliability is improved, and the chain bucket arm is avoided from malfunctioning due to excessive force, which is beneficial to extending the life of the equipment and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 Schematic diagram of an L-type chain bucket ship unloader in the prior art;

[0038] Figure 2 This is a schematic diagram of the ship unloader of the present invention in use;

[0039] Figure 3 It is a schematic diagram of the material taking device of the present invention;

[0040] Figure 4 for Figure 3 Local magnification in Figure 1 ;

[0041] Figure 5 for Figure 3 Local magnification in Figure 2 ;

[0042] Figure 6 It is an enlarged view of the cooperation between the hopper chain and the drive sprocket of the present invention;

[0043] Figure 7 This is a schematic diagram of two adjacent hoppers connected via a hopper connecting structure according to the present invention;

[0044] Figure 8 For the present invention Figure 7 A magnified view of the structure at center A;

[0045] Figure 9 For the present invention Figure 7 A top view of

[0046] Figure 10 It is a structural schematic diagram of the hopper connecting plate of the present invention;

[0047] Figure 11 For the present invention Figure 7 Side view of;

[0048] Figure 12 It is a structural schematic diagram of a single hopper of the present invention;

[0049] Figure 13 This is a schematic diagram of the coordination between the swing mechanism and the material taking device of the present invention;

[0050] Figure 14 Schematic diagram of multiple swing positions of the material taking device of the present invention;

[0051] Description of reference numerals:

[0052] 10. Gantry body; 11. Gantry legs; 12. Boom; 13. Traveling trolley; 20. Cabin; 30. Materials; 40. Wharf foundation;

[0053] 100. Reclaiming device; 101. Drive motor; 102. Drive sprocket; 103. Rotating shaft; 104. Chain arm; 1051. First redirecting sprocket; 1052. Second redirecting sprocket; 106. Tensioning push rod; 107. Cover; 108. Tensioning sprocket; 110. Hopper chain; 111. Hopper; 112. Hopper connecting plate; 1121. Engaging hole; 1122. Opening slot; 113. Hopper back plate; 114. Ear plate; 1141. Upper ear plate; 1142. Lower ear plate; 115. Hopper side plate; 116. Hinge pin; 117. Limiting member; 118. Fixing sleeve;

[0054] 120, lifting section; 130, first descending section; 140, second descending section; 150, taking section; 160, unloading section;

[0055] 200, swing mechanism; 201, swing mechanism tensioning cylinder; 202, swing mechanism traction rope; 203, swing mechanism redirection pulley; 204, swing mechanism damping cylinder; 205, damping pulley; 206, traction hinge;

[0056] 210, first swing state; 220, second swing state; 230, third swing state. DETAILED DESCRIPTION

[0057] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0058] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0060] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0061] Example 1

[0062] Combine Figure 3 、 Figures 5 to 12 As shown, this embodiment provides a ship unloader hopper connection structure, which includes a hopper connection plate 112, which is suitable for being movably connected between two adjacent hoppers 111. Multiple hoppers 111 are connected end to end in sequence through the hopper connection plate 112 to form a hopper chain 110. An engaging hole 1121 is formed on the hopper connection plate 112, and the drive sprocket 102 of the ship unloader engages with the engaging hole 1121 to realize the engaged transmission of the drive sprocket 102 and the hopper chain 110.

[0063] The hopper connection structure of the ship unloader provided in this embodiment eliminates the traditional chain transmission and adopts a hopper connecting plate 112 to connect the various hoppers 111. The hopper chain 110 is formed by alternatingly connecting the hoppers 111 and the hopper connecting plates 112. The hopper chain 110 composed of the hopper connecting plates 112 and the hopper back plates 113 is used for transmission, so that the hopper 111 is both a working mechanism for digging materials and participates in the transmission as a part of the hopper chain 110, thereby increasing the force-bearing area, improving reliability, and reducing maintenance costs.

[0064] It should be noted that the movable connection is a rotation connection or a hinge connection.

[0065] Optionally, the hopper 111 is provided with an ear plate 114 suitable for hinged cooperation with the hopper connecting plate 112. The ear plate 114 can be fixed to the hopper 111 by welding and / or bonding and / or screw connection. The hopper connecting plate 112 is hingedly cooperated with the ear plates 114 of two adjacent hoppers 111 so that the hopper connecting plate 112 is movably connected between the two adjacent hoppers 111.

[0066] Optionally, combined Figures 5 to 8 ,and Figure 10 As shown, the engagement hole 1121 is a through hole opened on the hopper connecting plate 112. It should be noted that the shape and size of the engagement hole 1121 can be set according to the gear teeth of the driving sprocket 102 and process requirements, and are not limited here.

[0067] Optionally, combined Figure 7 、 Figure 12 As shown, the ear plate 114 includes an upper ear plate 1141 and a lower ear plate 1142 arranged at the upper and lower ends of the hopper 111. It should be noted that, in this embodiment, the end of the hopper 111 close to the hopper mouth is set as the upper end, and the end away from the hopper mouth is set as the lower end, and each of the hoppers 111 is respectively provided with the upper ear plate 1141 and the lower ear plate 1142 at the upper and lower ends.

[0068] Further, combined with Figures 7 to 9 and Figure 11 As shown, the hopper 111 includes a hopper back plate 113 and two hopper side plates 115 located on both sides of the hopper back plate 113. The two hopper side plates 115 are respectively provided with the upper ear plate 1141 and the lower ear plate 1142. The upper ear plate 1141 and the lower ear plate 1142 on both sides of the hopper back plate 113 are respectively connected by two hopper connecting plates 112 to achieve the connection between two adjacent hoppers 111. Connecting adjacent hoppers 111 through the two hopper connecting plates 112 distributed on both sides of the hopper 111 not only improves the stability and balance of the hopper chain 110, but also the hopper connecting plates 112 are located on both sides of the hopper 111, which can effectively avoid interference.

[0069] Furthermore, the hopper connection structure of the ship unloader provided in this embodiment utilizes a hopper chain 110 composed of a hopper connecting plate 112 and a hopper back plate 113 for transmission. This significantly reduces the spacing between hoppers 111, allowing for near-continuous material transport and significantly improving material retrieval efficiency. This also makes the overall structure more compact and lighter. This effectively addresses the problem of conventional ship unloaders using a full chain drive, where two adjacent hoppers 111 must be fixed to two separate chain links, and these two links are connected by an intermediate link, resulting in a large spacing between adjacent hoppers 111.

[0070] Optionally, the ear plate 114 is fixedly arranged on a side of the hopper side plate 115 close to the hopper back plate 113 .

[0071] Preferably, combined Figure 11 and Figure 12 As shown, the ear plate 114 is fixedly arranged at the upper and lower corners of the hopper side plate 115, which facilitates the connection with the hopper connecting plate 112 on the one hand, and has a higher structural strength on the other hand.

[0072] Optionally, combined Figures 7 to 10 As shown, in this embodiment, the upper and lower ends of the hopper connecting plate 112 are respectively formed with open slots 1122 that can accommodate the ear plates 114; the open slots 1122 are U-shaped. When connecting two adjacent hoppers 111, the lower ear plate 1142 of one hopper 111 is inserted into the open slot 1122 at the upper end of the hopper connecting plate 112, and the upper ear plate 1141 of the other hopper 111 is inserted into the open slot 1122 at the lower end of the hopper connecting plate 112. The two hoppers 111 are hingedly fixed via a pin connection mechanism. By adopting a hinged connection method to achieve the connection between the hopper connecting plate 112 and the two adjacent hoppers 111, the connection is more stable and reliable.

[0073] The hopper connection structure of the ship unloader provided in this embodiment has a driving sprocket 102 acting on a hopper connection plate 112. The hopper connection plate 112 is connected to the ear plate 114 of the hopper 111 through a pin connection mechanism, and the hopper connection plates 112 are located on both sides of the hopper 111. In this way, they will not interfere with the hopper 111 during driving or redirection.

[0074] In addition, in this embodiment, the hopper connecting plate 112 is made of high-strength material, such as wear-resistant alloy steel, which can effectively ensure the reliability of the hopper chain 110 when driving or redirecting.

[0075] Optionally, combined Figures 7 to 10As shown, the opening slot 1122 includes a first side wall and a second side wall arranged opposite to each other, and the pin connection mechanism includes a hinge pin 116 and a stopper 117. The ear plate 114, the first side wall, and the second side wall are respectively provided with axial holes. The hinge pin 116 passes through the axial holes on the first side wall, the ear plate 114, and the second side wall in sequence to achieve hinged connection between the ear plate 114 and the hopper connecting plate 112. Both ends of the hinge pin 116 are respectively provided with positioning holes that cooperate with the stopper 117. The positioning holes are through-hole structures arranged along the radial direction of the hinge pin 116. The stopper 117 passes through the positioning holes and stops outside the first and second side walls to achieve limited fixation of the ear plate 114 and the hopper connecting plate 112, thereby preventing the ear plate 114 or the hopper connecting plate 112 from being separated from the hinge pin 116.

[0076] The hinge pin 116 provided in this embodiment can realize fast and accurate positioning and locking of the hopper connecting plate 112 and the ear plate 114 of the hopper 111, with good locking effect, fast and accurate operation and high work efficiency.

[0077] Optionally, the pin connection mechanism further includes two fixing sleeves 118, each located on either side of the hopper connection plate 112. The fixing sleeves 118 are hollow, forming a through-hole through which the hinge pin 116 passes. Connecting holes are provided on the peripheral wall of the fixing sleeve 118 corresponding to the positioning holes. Both ends of the hinge pin 116 pass through the fixing sleeves 118, respectively. The stopper 117 sequentially passes through the connecting holes on the peripheral wall of the fixing sleeve 118 and the positioning hole on the hinge pin 116 to secure the hinge pin 116.

[0078] The fixing sleeve 118 provided in this embodiment can effectively limit the two outer sides of the hopper connecting plate 112, further improving the stability of the entire structure. At the same time, it can also avoid the wear problem caused by the direct cooperation between the limiting member 117 and the hinge pin 116.

[0079] Optionally, the limiting member 117 includes a pin and / or a rivet and / or a screw. Preferably, the limiting member 117 is a pin, so that the hopper connecting plate 112 and the hopper 111 can be disassembled and installed more conveniently and quickly, and the replacement is convenient, thereby reducing maintenance costs.

[0080] Optionally, in this embodiment, combined with Figure 7 Figure 8 and Figure 10As shown, the hopper connecting plate 112 includes a hopper connecting plate body with an H-shaped longitudinal cross-section; the open slots 1122 at the upper and lower ends of the hopper connecting plate body are respectively hingedly fixed to the ear plates 114 of two adjacent hoppers 111. In this embodiment, a single H-shaped hopper connecting plate 112 is used to connect the two hoppers 111. Compared to providing two hopper connecting plates, this further simplifies the structure and assembly steps of the hopper chain 110. It also avoids the problem of uncontrollable size and shape of the meshing hole between the two hopper connecting plates, which makes it difficult to position and drive the drive sprocket 102.

[0081] Furthermore, a meshing hole 1121 is formed in the middle of the hopper connecting plate body, which engages with the teeth of the drive sprocket 102. The hopper connecting plate body includes a meshing section in the middle and connecting sections at both ends of the meshing section. The meshing hole 1121 is formed in the meshing section. The meshing section is a plate-like structure with a certain thickness to ensure structural strength at the meshing hole 1121.

[0082] Optionally, in this embodiment, the length of the engaging section is about one-third of the length of the entire hopper connecting plate body, and the lengths of the two connecting sections are the same as the length of the engaging section, so as to ensure that the bearing effect of the entire hopper connecting plate 112 is better and more reasonable, thereby reducing the risk of damage to the hopper connecting plate 112.

[0083] The hopper connection structure of the ship unloader provided in this embodiment differs from that of conventional chain bucket ship unloaders in that each hopper 111 is directly connected by a hopper connection plate 112. The hopper back plate 113 is part of the hopper 111. Each hopper back plate 113 has an ear plate 114 at its upper and lower portions, namely an upper ear plate 1141 and a lower ear plate 1142. The hoppers 111 are hinged to the hopper connection plate 112 via the ear plates 114. The lower ear plate 1142 of one hopper 111 and the upper ear plate 1141 of another hopper 111 are hinged to each end of the hopper connection plate 112. In this manner, multiple hoppers 111 are connected to form a hopper chain 110. The hopper back plates 113 act as part of the chain, bearing the transmission force, thereby increasing the force-bearing area and improving reliability.

[0084] Example 2

[0085] Combine Figures 2 to 12 As shown, this embodiment provides a material taking device, and the material taking device 100 includes a chain bucket arm 104, a bucket chain 110, a driving unit and a rotating shaft 103.

[0086] The hopper chain 110 is composed of multiple hoppers 111 connected end to end in sequence through the hopper connection structure in Example 1, and the hopper chain 110 is arranged around the outer periphery of the chain bucket arm 104; the driving unit includes a driving sprocket 102, and the gear teeth on the outer periphery of the driving sprocket 102 engage with the engaging holes 1121 on the hopper connecting plate 112 to drive the hopper chain 110 to operate relative to the chain bucket arm 104; the rotating shaft 103 is hingedly connected to the chain bucket arm 104, and the chain bucket arm 104 is suitable for swinging around the rotating shaft 103; the force direction of the hopper chain 110 when digging materials 30 is parallel to the rotating plane of the chain bucket arm 104.

[0087] Preferably, the chain bucket arm 104 serves as the main structure of the material taking device and is used to support other structural components. In this embodiment, the chain bucket arm 104 can be a metal frame, which extends along the length direction.

[0088] Preferably, combined Figure 3 As shown, the force direction of the hopper chain 110 when digging the material 30 is the extension direction of the material taking section 150.

[0089] The hopper chain 110 is composed of multiple hoppers 111 connected end to end. The hopper chain 110 is constructed in a loop and is adapted to operate relative to the chain arm 104 under the drive unit. The hopper chain 110 is equipped with multiple hoppers 111. During a reciprocating motion, the hoppers 111 are used to scoop material. After the material is lifted to a certain height, the material 30 is dumped, and then scooping continues, repeating the process. In this embodiment, the material 30 can be coal, but it can also be grains such as corn and wheat, or other substances that can be accommodated in the hoppers 111.

[0090] Preferably, the chain bucket arm 104 is mounted on the arm frame 12. Specifically, the chain bucket arm 104 is hingedly connected to the arm frame 12 via a rotary shaft 103, so that the chain bucket arm 104 can swing relative to the arm frame 12 around the rotary shaft 103. Furthermore, the force direction of the bucket chain 110 when digging materials 30 is parallel to the rotation plane of the chain bucket arm 104, so that when the material reclaiming device is working, the chain bucket arm 104 itself will not be subjected to additional force. When the torsional force of the bucket chain 110 when digging materials 30 is too large, the chain bucket arm 104 will swing freely around the rotary shaft 103 under the action of the force. The main load on the material reclaiming device is within the plane where the material reclaiming device is located, avoiding the chain bucket arm 104 from being subjected to excessive force and causing failure, which is beneficial to extending the life of the equipment and improving efficiency.

[0091] The material-retrieving device provided in this embodiment is configured with a rotating shaft 103 so that the chain bucket arm 104 is suitable for swinging around the rotating shaft 103; and the force direction of the bucket chain 110 when digging materials 30 is parallel to the rotating plane of the chain bucket arm 104, thereby ensuring that the main load on the material-retrieving device is within the plane where the material-retrieving device is located, the force is more reasonable, the operational reliability is improved, and the chain bucket arm 104 is prevented from malfunctioning due to excessive force, which is beneficial to extending the equipment life and improving efficiency.

[0092] Furthermore, the opening direction of the hopper 111 is parallel to the rotation plane of the hopper chain 110, and the opening direction of the hopper 111 is parallel to the rotation plane of the chain bucket arm 104. Furthermore, the opening direction of the hopper 111 is parallel to the translation direction of the material reclaiming device along the arm 12, that is, a front feeding method is adopted, so that the hopper 111 can shovel the material into the hopper more directly when digging the material, greatly improving the working efficiency. The front feeding method can also prevent the material from piling up at the head of the reclaiming head, avoiding large lateral excavation resistance.

[0093] Specifically, the rotary shaft 103 is hinged to the upper portion of the chain bucket arm 104;

[0094] A vertical line passing through the center of gravity of the material taking device is spaced apart from the axis of the rotary shaft 103 .

[0095] It should be noted that the vertical line passing through the center of gravity of the reclaiming device is spaced apart from the axis of the rotating shaft 103, which means that the vertical line passing through the center of gravity of the reclaiming device does not pass through the axis of the rotating shaft 103, that is, the axis of the rotating shaft 103 and the center of gravity of the reclaiming device are not in the same straight line in the vertical direction. To maintain this state, this embodiment provides a swing mechanism 200 that is flexibly connected to the traction hinge 206 of the reclaiming device 100; the swing mechanism 200 is suitable for pulling the reclaiming device 100 so that the reclaiming device 100 is maintained in the first preset position when not subject to external forces; in the first preset position, the vertical line passing through the center of gravity of the reclaiming device 100 is spaced apart from the axis of the rotating shaft 103, and the torque of the reclaiming device under the action of gravity causes the reclaiming device to have a tendency to move toward the landward direction.

[0096] The material picking device provided in this embodiment is arranged so that the vertical line passing through the center of gravity of the material picking device is spaced apart from the axis of the rotating shaft 103, so that the material picking device always has a tendency and torque to move toward the front end of the material picking, thereby increasing the pressure of the material picking device on the material. The material picking device can use the torque generated by its own gravity to always maintain a movement trend toward the head of the hopper, which facilitates material picking and reduces energy consumption.

[0097] Combine Figure 2 、 Figure 3 As shown, the material-retrieving device is roughly constructed in a herringbone shape. In the initial position, the center of gravity and the hinge point of the material-retrieving device are not in a straight line, and there is a torque. During excavation operations, the material-retrieving device can use the torque generated by its own gravity to always maintain a movement trend toward the head of the hopper. If it encounters resistance, such as compacted materials, the hopper can rely on its own gravity to always press the head against the compacted materials, thereby increasing the force to break the compacted materials and waiting for the hopper to excavate the materials in front before continuing to move forward, thereby improving the material-retrieving efficiency and reducing additional force. The material-retrieving device can even use its own gravity to complete the material-retrieving without the need for additional force, thereby reducing energy consumption.

[0098] Specifically, the driving unit includes:

[0099] Drive motor 101;

[0100] The driving sprocket 102 has an outer peripheral side that is in contact with the hopper chain 110 . The driving motor 101 is adapted to drive the hopper chain 110 to operate via the driving sprocket 102 .

[0101] Preferably, the output shaft at the end of the driving motor 101 is connected to the driving sprocket 102 after being decelerated, and the driving sprocket 102 is located at the upper part of the material taking device.

[0102] Specifically, the rotation axis of the driving sprocket 102 coincides with the axis of the rotating shaft 103 .

[0103] Specifically, the retrieving device further includes: two tensioning sprockets 108 , which are arranged along the length direction of the chain bucket arm 104 at one end away from the driving sprocket 102 ;

[0104] The two tensioning sprockets 108 are suitable for stretching the hopper chain 110 and forming at least a portion of the hopper chain 110 into a material taking section 150 suitable for contacting the material 30 .

[0105] Combine Figure 3 As shown, the two tensioning sprockets 108 are located at the lower part of the material taking device. The two tensioning sprockets 108 can stretch the lower part of the hopper chain 110 so that multiple hoppers can be in an open forward state when running here, thereby facilitating multiple hoppers to take materials at the same time and improving the material taking efficiency.

[0106] Specifically, the retrieving device further includes a tensioning push rod 106 disposed between the two tensioning sprockets 108, adapted to maintain the two tensioning sprockets 108 relatively away from each other to tension the hopper chain 110. This ensures the tension of the hopper chain 110 and maintains the length of the retrieving section 150.

[0107] Specifically, a lifting section 120 suitable for lifting the material 30 is formed between the end of the material taking section 150 and the driving sprocket 102 .

[0108] It should be noted that the end of the reclaiming section 150 refers to the end of the hopper chain 110 in the rotation direction of the hopper chain 110, where the hopper chain 110 maintains contact with the material 30. Correspondingly, the head end of the reclaiming section 150 refers to the head end of the hopper chain 110 in the rotation direction of the hopper chain 110, where the hopper chain 110 maintains contact with the material 30.

[0109] Preferably, the material lifting section 120 in this embodiment is a straight line section. By setting the material lifting section 120 as a straight line section, the hopper is always kept in a straight line, ensuring a stable material lifting process.

[0110] Specifically, after the hopper chain 110 passes around the driving sprocket 102 from the end of the lifting section 120, the direction of the opening of the hopper 111 is changed and the unloading is completed;

[0111] A first redirecting sprocket 1051 is provided between the driving sprocket 102 and the head end of the retrieving section 150; the hopper chain 110 forms a first descending section 130 between the driving sprocket 102 and the first redirecting sprocket 1051, and a second descending section 140 between the first redirecting sprocket 1051 and the head end of the retrieving section 150;

[0112] The second descending section 140 is disposed at an angle to the first descending section 130 .

[0113] Preferably, by arranging a first redirecting sprocket 1051 between the driving sprocket 102 and the head end of the material-taking section 150, the hopper chain 110 forms a first descending section 130 and a second descending section 140, and the second descending section 140 is set at an angle to the first descending section 130, so that the overall structure of the hopper chain 110 is roughly herringbone-shaped, that is, at the upper part of the material-taking device, the distance between the loaded hopper and the empty hopper is closer, so that the upper structure of the material-taking device is smaller, and at the lower part of the material-taking device, after being redirected by the first redirecting sprocket 1051, the lifting hopper and the descending hopper will move away from each other, and the descending hopper will bend at an angle, so that the lower part of the material-taking device forms a triangle-like shape, which is convenient for setting the material-taking section 150.

[0114] Preferably, by adopting a herringbone-shaped material-retrieving device, a method of feeding from the front of the hopper mouth edge line with a higher force efficiency ratio is adopted. At the bottom of the herringbone structure, in order to allow the material-retrieving arm to dig out materials under the hatch coaming, a material-retrieving section 150 of sufficient length is provided at the bottom of the material-retrieving device, so that the hopper can dig materials at high speed in the ship width direction, and the efficiency is greatly improved.

[0115] Traditional L-shaped reclaiming heads sweep left and right to allow material to enter the hopper. However, deep, narrow reclaiming devices make it difficult to unload cleanly. Furthermore, this rotary feeding method requires the use of an L-shaped reclaiming device in conjunction with a deep, narrow hopper to achieve rotary, stacking, and feeding. The reclaiming device provided in this embodiment utilizes a front reclaiming head with a herringbone structure. Compared to traditional chain bucket ship unloaders, this has a simpler structure, more evenly distributes force across the entire reclaiming device's bottom, and is less expensive.

[0116] Specifically, a second redirecting sprocket 1052 is provided between the driving sprocket 102 and the first redirecting sprocket 1051 , and the hopper chain 110 forms a discharge section 160 between the driving sprocket 102 and the second redirecting sprocket 1052 .

[0117] Preferably, a collecting device such as a funnel can be provided at a relatively lower position of the unloading section 160 to facilitate the subsequent transfer of materials. By providing the unloading section 160, the interference of the empty hopper moving downward with the full hopper that needs to be unloaded can be reduced, thereby ensuring the efficient unloading action.

[0118] Preferably, a dustproof cover 107 is provided outside the hopper chain 110. The hopper is only exposed at the lower part of the material taking device.

[0119] Due to the rotary feeding method used by conventional chain bucket ship unloaders, the chain bucket needs to be deep and narrow to facilitate digging, and deep and narrow chain buckets are not easy to unload cleanly. However, due to the front feeding method, the hopper of this embodiment can be set to a wide and shallow hopper, which is convenient for material entry and discharge.

[0120] The reclaiming device 100 provided in this embodiment is installed on the main structure of the ship unloader. The reclaiming device 100 is provided with a hopper chain 110 consisting of multiple hoppers 111 and hopper connecting plates 112 alternately connected. During operation, the drive unit on the reclaiming device 100 drives the hopper connecting plates 111 to move, thereby driving the entire hopper chain 110 to move. During operation, the hopper chain 110 circulates on the reclaiming device 100, scooping material at the bottom of the reclaiming device 100 and unloading the material when it is lifted to the top of the reclaiming device 100. The drive sprocket 102 and the redirecting sprocket on the reclaiming device 100 both act on the hopper connecting plates 112, which drive the hoppers 111 to move together. The hopper chain 110 not only performs the task of receiving and unloading materials, but also serves as part of the transmission system.

[0121] Example 3

[0122] Combine Figures 2 to 14 As shown, this embodiment provides a ship unloader, which includes: an arm 12, a running trolley 13 and the material taking device 100 in the above-mentioned embodiment 2.

[0123] Specifically, the ship unloader includes a gantry body 10, which includes legs 11 and an arm 12 that can move up and down along the legs 11. A trolley 13 is mounted on the arm 12 and is adapted to move along the length of the arm 12, thereby moving along the width of the ship. The reclaiming device 100 is mounted on the trolley 13, and its direction of movement is parallel to the rotation plane of the chain bucket arm 104. The height of the reclaiming device 100 can be adjusted by controlling the raising and lowering of the arm 12.

[0124] Preferably, the ship unloader is arranged on the dock foundation 40 and extends to the sea side through the boom 12. Preferably, the material taking device 100 is adapted to extend into the cabin 20 to facilitate the excavation of the material 30.

[0125] Optionally, a track is provided on the dock foundation 40 , and the gantry legs 11 can move along the track to drive the gantry body 10 to move along the track.

[0126] Preferably, the reclaiming device only reclaims materials in the front direction of the ship width in one movement, and the main loads on the reclaiming device are within the plane where the reclaiming device is located, which is beneficial to extending the life of the equipment and improving efficiency.

[0127] During operation, the drive motor 101 drives the drive sprocket 102 to rotate, and the drive sprocket 102 drives the hopper connecting plate 112 to move, thereby driving the entire hopper chain 110 to rotate. The hopper 111 moves downward from the drive sprocket 102 to the head end of the material reclaiming section 150, and begins to feed the material from the front of the hopper mouth edge line. The hopper 111 continues to move from the head end of the material reclaiming section 150 to the end of the material reclaiming section 150. When the material reclaiming device 100 follows the running trolley 13 and moves from the sea side to the land side, the material reclaiming device 100 digs the material 30 downward at the head end of the material reclaiming section 150. When the material reclaiming device 100 moves from the land side to the sea side, the material reclaiming device 100 scoops up the material 30 at the end of the material reclaiming section 150. The hopper 111 moves to the end of the material taking section 150 and then rises upward, passes through the material lifting section 120, and finally turns over at the driving sprocket 102, pouring out the material 30, completing one working cycle.

[0128] Combine Figure 2 、 Figure 3 and Figure 13 、 Figure 14 As shown, the ship unloader provided in this embodiment further includes:

[0129] The swing mechanism 200 is flexibly connected to the traction hinge 206 of the material-retrieving device 100; the swing mechanism 200 is suitable for towing the material-retrieving device 100 so that the material-retrieving device 100 maintains a first preset position when not subject to external force; and in the first preset position, the vertical line passing through the center of gravity of the material-retrieving device 100 is spaced apart from the axis of the rotating shaft 103, and the torque of the material-retrieving device under the action of gravity makes the material-retrieving device tend to move toward the land side.

[0130] Specifically, the swing mechanism 200 includes:

[0131] Swing mechanism tensioning cylinder 201;

[0132] A traction rope 202 of the swing mechanism, one end of which is connected to the traction hinge 206 and the other end of which is connected to the tensioning cylinder 201 of the swing mechanism;

[0133] The swing mechanism tensioning cylinder 201 is adapted to facilitate the movement of the retrieving device 100 toward the land side when extended, and to drive the retrieving device 100 toward the sea side when retracted.

[0134] One end of the wire rope is connected to the swing mechanism tensioning cylinder 201, passes around the fixed pulley block connected to the end of the damping cylinder, and the other end is connected to the traction hinge 206 at the bottom of the reclaiming device 100. The extension and contraction of the tensioning cylinder drives the wire rope to move, thereby pulling the reclaiming device 100 to swing.

[0135] Preferably, the swing mechanism tensioning cylinder 201 is adapted to actively adjust the angle of the retrieving device 100 as required. Preferably, when the retrieving device 100 is acted upon by an external force, the swing mechanism tensioning cylinder 201 does not extend or contract.

[0136] Preferably, the swing reclaiming assembly of this embodiment is preferably applied to a ship unloader, wherein the ship unloader extends a boom 12, and the reclaiming device 100 is mounted on the boom 12. Specifically, the reclaiming device 100 is hingedly connected to the boom 12 via a rotary shaft 103, so that the reclaiming device 100 can swing relative to the boom 12 around the rotary shaft 103.

[0137] Combine Figures 2 to 6 and Figures 13 and 14As shown, the upper portion of the reclaiming device 100 is hingedly connected to the rotating shaft 103, allowing the reclaiming device 100 to swing about the rotating shaft 103. A traction hinge 206 is provided in the middle or lower middle portion of the reclaiming device 100. The swing mechanism 200 is flexibly connected to the traction hinge 206, specifically via a swing mechanism traction rope 202. This allows the reclaiming device 100 to maintain a first preset position when not subject to external forces. In the first preset position, a perpendicular line passing through the center of gravity of the reclaiming device 100 is spaced from the axis of the rotating shaft 103, and the torque of the reclaiming device under the action of gravity causes the reclaiming device to have a tendency to move toward the landward direction. Under the action of its own gravity, the reclaiming device has a tendency to move about the rotating shaft 103 and toward the landward direction.

[0138] The swing mechanism 200 provides traction to the reclaiming device 100 so that the reclaiming device 100 maintains a first preset position when not subject to external forces. In this position, there is always a torque toward the land side, which is balanced by the pulling force of the swing mechanism 200. When the reclaiming device 100 moves from the sea side to the land side, the gravity of the reclaiming device 100, which weighs tens of tons, can always push the reclaiming device 100 toward the front end of the movement direction, making it easier for the hopper to dig the material from the front. Even if the material is encountered, it can be overcome. When the reclaiming device 100 moves from the land side to the sea side, the tension of the traction wire rope always keeps the posture of the reclaiming device 100 stable.

[0139] When the cabin 20 suddenly encounters a surge, in the direction of the ship width, if the force exerted by the surge on the ship and the material-reclaiming device 100 is toward the sea side, the material-reclaiming device 100 will tend to swing clockwise. At this time, the force of the surge applied to the material-reclaiming device 100 will only reduce the tension of the wire rope. If the torque of the surge force on the rotating shaft 103 exceeds the torque of the gravity on the rotating shaft 103, the material-reclaiming device 100 will swing slightly in the clockwise direction, converting the surge force into a swing, thereby avoiding transmitting the force to the ship unloader structure. If the surge forces the ship and reclaiming device 100 toward the landward side, the reclaiming device 100, subject to the resistance of the reclaiming, gravity, and the tension of the wire rope, will suddenly be subjected to the surge force, causing the tension of the wire rope to increase rapidly. At this time, the force on the pulley at the end of the damping cylinder will also increase rapidly. When the threshold is exceeded, the damping cylinder releases, the wire rope length increases, and the reclaiming device 100 swings counterclockwise to reach a new equilibrium state. The force applied to the reclaiming device 100 by the surge is converted into swaying of the reclaiming device 100, and does not affect the chain bucket ship unloader structure, ensuring the safety of the structure under surge.

[0140] In this embodiment, the material-grabbing device 100 is pulled by the swing mechanism 200 so that the material-grabbing device 100 is maintained in the first preset position when not subject to external force; and in the first preset position, the vertical line passing through the center of gravity of the material-grabbing device 100 is spaced apart from the axis of the rotating shaft 103, and the torque of the material-grabbing device under the action of gravity makes the material-grabbing device tend to move toward the land side; thereby, the material-grabbing device can use the torque generated by its own gravity to assist in material gating, while avoiding the impact of the material moving with the ship under the action of surge on the material-grabbing arm, avoiding the impact force from being transmitted to the structure of the ship unloader, and ensuring the safety and reliability of the structure.

[0141] Specifically, the swing mechanism 200 further includes:

[0142] The swing mechanism redirecting pulley 203 is arranged between the swing mechanism tensioning cylinder 201 and the traction hinge 206 and is in sliding contact with the swing mechanism traction rope 202.

[0143] Specifically, the swing mechanism 200 further includes:

[0144] Swing mechanism damping cylinder 204;

[0145] A damping pulley 205 is connected to the free end of the damping cylinder 204 of the swing mechanism and is in sliding contact with the traction rope 202 of the swing mechanism;

[0146] The damping pulley 205 is arranged between the swing mechanism redirecting pulley 203 and the traction hinge 206;

[0147] The rocking mechanism damping cylinder 204 is adapted to extend when the moment applied to the landward direction of the material taking device 100 is greater than a preset threshold, and to retract when the moment applied to the seaward direction of the material taking device 100 is greater than a preset threshold.

[0148] Preferably, the rocking mechanism damping cylinder 204 can extend according to the external force applied to the reclaiming device 100, thereby adjusting the angle of the reclaiming device 100. If the reclaiming device 100 is subjected to a landward torque, the reclaiming device 100 pulls the rocking mechanism traction rope 202. If the force of the rocking mechanism traction rope 202 exceeds a preset threshold of the rocking mechanism damping cylinder 204, the rocking mechanism damping cylinder 204 extends. If the reclaiming device 100 is subjected to a seaward torque, the reclaiming device 100 reduces the force applied to the rocking mechanism traction rope 202, thereby causing the damping cylinder 204 to retract.

[0149] When a surge occurs, the rocking mechanism damping oil cylinder 204 extends or contracts according to the direction of the force. When the surge ends, the force on the rocking mechanism traction rope 202 returns to the state before the surge, and the extension of the rocking mechanism damping oil cylinder 204 will return to the state before the surge. At the same time, the angle of the reclaiming device 100 will also return to the state before the surge. The rocking reclaiming assembly provided in this embodiment is provided with a rocking mechanism damping oil cylinder 204, which extends when the reclaiming device 100 is subjected to a torque toward the land side, and contracts when the reclaiming device 100 is subjected to a torque toward the sea side. Thus, the length of the rocking mechanism traction rope 202 can be automatically adjusted according to the force applied to the reclaiming device 100, so that the reclaiming device 100 can quickly reach a new equilibrium state after being subjected to force, thereby ensuring that the force applied to the reclaiming device 100 during the surge is converted into a rocking motion of the reclaiming device 100, and does not act on the structure of the chain bucket ship unloader, thereby ensuring the safety of the structure under surge.

[0150] Specifically, the rocking mechanism tensioning cylinder 201 is adapted to extend and retract in the horizontal direction.

[0151] Specifically, the rocking mechanism damping cylinder 204 is adapted to extend and retract in the horizontal direction.

[0152] Optionally, the stroke of the tensioning cylinder of the rocking mechanism is greater than the stroke of the damping cylinder of the rocking mechanism.

[0153] Preferably, the force threshold of the swing mechanism tensioning cylinder 201 is greater than the force threshold of the swing mechanism damping cylinder 204 , so that the swing mechanism tensioning cylinder 201 reacts slower than the swing mechanism damping cylinder 204 when subjected to force.

[0154] The swing mechanism tensioning cylinder 201 has a large stroke and a slow response; the swing mechanism damping cylinder 204 has a small stroke and a fast response.

[0155] Specifically, the contraction of the tensioning cylinder 201 of the rocking mechanism is suitable for increasing the angle between the axis of the material taking device 100 along its length direction and the vertical direction;

[0156] The extension of the rocking mechanism tensioning cylinder 201 is suitable for reducing the angle between the axis of the material taking device 100 along its length direction and the vertical direction.

[0157] Since a coaming is provided at the hatch of the cabin 20, the material below the coaming is difficult to remove when the material taking device 100 is in the normal operating position. Therefore, the swing material taking assembly provided in this embodiment can also drive the material taking device 100 to adjust the angle as needed.

[0158] Combine Figure 14As shown, under normal operating conditions, the reclaiming device 100 is in a first swinging state 210. When the reclaiming device needs to be adjusted from the first swinging state 210 to the second swinging state 220, the swing mechanism tensioning cylinder 201 extends, and the reclaiming device 100 can be adjusted to the second swinging state 220 under the action of gravity torque. When it needs to be adjusted from the first swinging state 210 to the third swinging state 230, the swing mechanism tensioning cylinder 201 retracts, and the wire rope pulls the reclaiming device 100 to the third swinging state 230. By adjusting to different postures, it is easier to empty the ship's hold 20 of scrap materials and reduce the amount of clearance.

[0159] In this embodiment, the reclaiming device can be driven to swing slightly around the rotary axis 103 by extending and retracting the tensioning cylinder 201 of the swing mechanism. This in turn changes the angle between the longitudinal axis of the reclaiming device 100 and the vertical direction, adjusting the posture of the reclaiming device so that the reclaiming device swings to a certain angle, making it easier to reach corners of the cabin and scoop out materials. This reduces the amount of cabin clearance and improves actual efficiency.

[0160] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A ship unloader hopper connection structure, characterized in that: include: A hopper connecting plate (112) is adapted to be movably connected between two adjacent hoppers (111), and a plurality of hoppers (111) are sequentially connected end to end via the hopper connecting plate (112) to form a hopper chain (110); An engagement hole (1121) is formed on the hopper connecting plate (112), and the drive sprocket (102) of the ship unloader is engaged with the engagement hole (1121) to achieve engagement transmission between the drive sprocket (102) and the hopper chain (110); The hopper (111) is provided with an ear plate (114) adapted to be hingedly engaged with the hopper connecting plate (112); The ear plate (114) comprises an upper ear plate (1141) and a lower ear plate (1142) arranged at the upper and lower ends of the hopper (111); The upper and lower ends of the hopper connecting plate (112) are respectively formed with opening slots (1122) capable of accommodating the ear plates (114); The lower ear plate (1142) of one of the two adjacent hoppers (111) is inserted into the open slot (1122) at the upper end of the hopper connecting plate (112), and the upper ear plate (1141) of the other hopper (111) is inserted into the open slot (1122) at the lower end of the hopper connecting plate (112), and the two hoppers are respectively hinged and fixed via a pin connection mechanism.

2. The ship unloader hopper connection structure according to claim 1, characterized in that: The engagement hole (1121) is a through hole provided on the hopper connecting plate (112).

3. The ship unloader hopper connection structure according to claim 2, characterized in that: The hopper (111) comprises a hopper back plate (113) and two hopper side plates (115) located on both sides of the hopper back plate (113), and the upper ear plate (1141) and the lower ear plate (1142) are respectively provided on the two hopper side plates (115).

4. The ship unloader hopper connection structure according to claim 3, characterized in that: The opening slot (1122) includes a first side wall and a second side wall that are arranged opposite to each other, and the pin connection mechanism includes a hinge pin (116), and the hinge pin (116) passes through the shaft hole on the first side wall, the ear plate (114), and the second side wall in sequence; A limiting member (117), wherein both ends of the hinge pin shaft (116) are respectively provided with positioning holes that cooperate with the limiting member (117), and the limiting member (117) passes through the positioning holes and stops outside the first side wall and the second side wall.

5. The ship unloader hopper connection structure according to claim 4, characterized in that: The pin connection mechanism further includes: a fixing sleeve (118) located on both sides of the hopper connection plate (112), and both ends of the hinge pin (116) pass through the fixing sleeve (118) respectively; The limiting member (117) passes through the fixing sleeve (118) and the hinge pin (116) in sequence to connect and fix the hinge pin (116).

6. The ship unloader hopper connection structure according to claim 4, characterized in that: The limiting member (117) includes a pin and / or a rivet and / or a screw.

7. The hopper connection structure according to any one of claims 2 to 6, characterized in that: The hopper connecting plate (112) comprises a hopper connecting plate body with an H-shaped longitudinal cross section; The opening grooves (1122) at the upper and lower ends of the hopper connecting plate body are respectively hingedly fixed to the ear plates (114) of two adjacent hoppers (111), and a meshing hole (1121) is provided in the middle of the hopper connecting plate body to match the gear teeth of the driving sprocket (102).

8. A material taking device, characterized in that: include: Chain bucket arm (104); A hopper chain (110) is formed by connecting a plurality of hoppers (111) end to end in sequence via the ship unloader hopper connection structure according to any one of claims 1 to 7, wherein the hopper chain (110) is arranged around the outer periphery of the chain bucket arm (104); A driving unit includes a driving sprocket (102), wherein gear teeth on the outer periphery of the driving sprocket (102) engage with engagement holes (1121) on the hopper connecting plate (112) to drive the hopper chain (110) to operate relative to the chain bucket arm (104); A rotary shaft (103) is hingedly connected to the chain bucket arm (104), and the chain bucket arm (104) is suitable for swinging around the rotary shaft (103); The force direction of the bucket chain (110) when digging materials (30) is parallel to the rotation plane of the chain bucket arm (104).

9. A ship unloader, characterized in that: include: Arm (12); A running trolley (13) is provided on the arm (12) and is adapted to move along the length direction of the arm (12); And the material taking device (100) as described in claim 8 above, the material taking device (100) is installed on the running trolley (13), and the running direction of the running trolley (13) is parallel to the rotation plane of the chain bucket arm (104).

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