Ship unloader and lifting mechanism thereof

Abstract

The invention provides a ship unloader and a lifting mechanism thereof, the lifting mechanism comprises a main frame, a telescopic frame, a lifting driving mechanism and at least one lifting machine, the main frame is connected with a carrying main body, the main frame is provided with an upper objective table, the telescopic frame is connected to the main frame, the telescopic frame is provided with a lower objective table located below the upper objective table, and the lifting driving mechanism is connected to the lower objective table. The lifting machine is provided with at least one lifting part, the lifting machine is configured to drive the lifting parts to move so as to transfer goods on the lower loading platform to the upper loading platform, and the lifting driving mechanism is connected to the main frame and the telescopic frame and is configured to drive the telescopic frame to move in the axial direction of the main frame or release driving on the telescopic frame so as to lift the goods on the upper loading platform. The telescopic frame moves in the axial direction of the main frame under the acting force of the cabin. According to the lifting mechanism, the telescopic frame can move upwards along with the cabin, the height and the position of the main frame are not affected, the height and the pitching angle of the carrying body are not affected, and the overall stability and safety of the ship unloader are improved.

Description

Technical Field

[0001] The present application relates to transport operation equipment, and in particular to a ship unloader and a lifting mechanism thereof. Background Art

[0002] A ship unloader is a machine used on shore to move cargo in a cargo ship. When working, a ship unloader in related art needs to use a lifting device to lift the cargo, and then use a conveying tool such as a belt connected to the lifting device to transport it to a designated location on shore.

[0003] However, the ship unloader of the related technology also has certain defects. The lifting equipment is rigidly connected to the conveying tool. After the cargo in the cargo ship is continuously transported out, the cargo ship will become lighter and float up, and then the lifting equipment will also float up, and then the conveying tool will also move, which will cause the posture of the entire ship unloader to be unstable and even have safety hazards. Therefore, it is necessary to make improvements. Summary of the invention

[0004] The present application provides a lifting mechanism for improving the overall stability and safety of a ship unloader. In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] On the one hand, the present application provides a lifting mechanism for a ship unloader, the ship unloader includes a carrier body for being set on the shore, the lifting mechanism includes: a main frame, the main frame is connected to the carrier body, the main frame is provided with an upper loading platform; a telescopic frame, used to stand in the cabin, the telescopic frame is connected to the main frame movably along the axial direction of the main frame, the telescopic frame is provided with a lower loading platform located below the upper loading platform; at least one set of hoists, each set of hoists has at least one lifting part, the hoist is configured to drive at least one lifting part to move so as to transfer the goods on the lower loading platform to the upper loading platform; a lifting drive mechanism, the lifting drive mechanism is connected to the main frame and the telescopic frame, and is configured to drive the telescopic frame to move along the axial direction of the main frame, or to release the drive of the telescopic frame so that the telescopic frame moves along the axial direction of the main frame under the force of the cabin.

[0006] As an optional implementation, the lifting drive mechanism includes: a lifting motor and a transmission member, the lifting motor is fixed to the main frame, the transmission member is installed on the output shaft of the lifting motor and is connected to the telescopic frame.

[0007] As an optional implementation, the transmission member includes a gear and a rack, the gear is mounted on the lifting motor, the rack is arranged on the telescopic frame along the height direction of the telescopic frame and meshes with the gear.

[0008] As an optional implementation, the lifting motor further includes: a clutch, which is arranged on the output shaft of the lifting motor and is used to release or maintain the output of the lifting motor to the transmission member.

[0009] As an optional embodiment, the lifting mechanism also includes: at least one set of limiting mechanisms for constraining the lifting and lowering trajectory of the telescopic frame, each set of limiting mechanisms includes a guide rail and a guide wheel matching the guide rail, the guide rail is arranged on one of the main frame and the telescopic frame, and the guide wheel is arranged on the other of the main frame and the telescopic frame.

[0010] As an optional embodiment, the elevator also includes: a frame, which is fixed to the inside of the telescopic frame, and the frame has an annular guide rail; a transmission chain, which is arranged on the annular guide rail, and at least one lifting part is arranged on the transmission chain, and the transmission chain is configured to move along the annular guide rail in a controlled manner to drive at least one lifting part to move up and down in a circular manner, so that the lifting part passes through the lower loading platform from bottom to top to transfer the goods on the lower loading platform to the lifting part, and the lifting part passes through the upper loading platform from top to bottom to transfer the goods in the lifting part to the upper loading platform.

[0011] As an optional embodiment, the elevator also includes: a surround drive mechanism, the surround drive mechanism includes a surround motor and a sprocket group, the surround motor is fixed to the frame, the surround motor is connected to the sprocket group, and the transmission chain is arranged on the sprocket group.

[0012] As an optional embodiment, each lifting part has a plurality of loading forks arranged at intervals; the lower loading platform has a plurality of loading barrels arranged at intervals, and on the running track of the lifting part, the plurality of loading forks and the plurality of loading barrels are staggered, and when the lifting part passes through the lower loading platform, the plurality of loading forks pass through the gaps between the plurality of loading barrels; the upper loading platform has a plurality of loading barrels arranged at intervals, and on the running track of the lifting part, the plurality of loading forks and the plurality of loading barrels are staggered, and when the lifting part passes through the upper loading platform, the plurality of loading forks pass through the gaps between the plurality of loading barrels.

[0013] As an optional embodiment, the lower loading platform also has a lower loading rack, wherein a plurality of lower loading barrels are rotatably arranged on the lower loading rack around their respective circumferential directions; and / or, the upper loading platform also has an upper loading rack, wherein a plurality of upper loading barrels are rotatably arranged on the upper loading rack around their respective circumferential directions.

[0014] As an optional embodiment, the lifting mechanism also includes: a conveyor, which is used to be arranged in the cabin and connected to the unloading platform to transfer the cargo in the cabin to the unloading platform.

[0015] As an optional implementation, the unloading platform further includes: a protective plate, which is arranged on a side of the unloading platform facing away from the conveyor.

[0016] As an optional embodiment, the unloading platform also includes: a stop plate, which is movably arranged on a side of the unloading platform close to the conveyor, and the stop plate has a stopping state and a releasing state. When in the stopping state, the stop plate protrudes from the upper surface of the unloading platform, and when in the releasing state, the stop plate avoids the upper surface of the unloading platform.

[0017] As an optional embodiment, the unloading platform also includes: a stop bracket, which is fixed to the side of the unloading platform close to the conveyor; a driving push rod, which is arranged on the stop bracket and connected to the stop plate, and the driving push rod is configured to controllably drive the stop plate to switch between a stop state and a release state.

[0018] Another aspect of the present application provides a ship unloader, comprising a lifting mechanism according to any one of the above items.

[0019] The lifting mechanism of the present application has a main frame connected to the carrying body, the main frame is provided with an upper loading platform, and the telescopic frame is liftably arranged on the main frame. The hoist can lift the goods to the upper loading platform and transport them to the shore by the carrying body. As the goods in the cabin are continuously transported out, the cabin gradually floats up, and the telescopic frame will move upward with the cabin. During this process, the height and position of the main frame will not be affected, and the height and pitch angle of the carrying body will not be affected, thereby improving the overall stability and safety of the ship unloader. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a ship unloader according to an embodiment of the present application;

[0022] Figure 2 This is a partial structural schematic diagram of a ship unloader according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of a main frame and a telescopic frame in a ship unloader according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the positional relationship between two hoists in a ship unloader according to an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the principle of a surround drive mechanism in a ship unloader according to one embodiment of the present application;

[0026] Figure 6 This is a schematic structural diagram of a loading platform in a ship unloader according to an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the principles of a main frame and a telescopic frame in a ship unloader according to an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 100, transport body; 110, support truss; 120, intermediate conveyor; 122, intermediate conveying part; 130, first telescopic rod; 140, tail conveyor; 142, tail conveying part; 150, walking frame; 160, counterweight part; 170, hydraulic control unit; 180, second telescopic rod; 200, main frame; 210, upper loading platform; 212, upper loading barrel; 214, upper loading rack; 300, telescopic frame; 310, lower loading platform; 312, lower loading barrel; 314, lower loading rack; 316, protective plate; 317, stop plate; 318, stop bracket; 319, driving push rod; 400, hoist; 410, lifting part; 411, cargo fork; 412, mounting frame; 420, frame; 422, annular guide rail; 430, transmission chain; 440, surrounding motor; 450, sprocket set; 452, upper sprocket; 454, lower sprocket; 500, conveyor; 600, lifting motor; 610, transmission member; 612, gear; 614, rack; 620, clutch; 630, brake; 640, guide wheel; 650, guide rail. DETAILED DESCRIPTION

[0030] A ship unloader is a machine used on shore to move cargo in cargo ships. In the ship unloader of the related technology, the lifting equipment is rigidly connected to the onshore transport equipment. When working, the lifting equipment is needed to lift the cargo, and then the cargo is transported to the designated location on shore using conveying tools such as belts docked with the lifting equipment. As the cargo in the cargo ship is continuously transported outward, the cargo ship will float up after becoming lighter, and the conveying tool of the transport equipment docked with the lifting equipment will also move accordingly, which will cause the posture of the entire ship unloader to be unstable and even have safety hazards, so it is necessary to make improvements. In order to overcome the defects in the prior art, the present application provides a lifting mechanism for a ship unloader,

[0031] Since the telescopic frame can be raised and lowered on the main frame, as the cargo in the cabin is continuously transported out and the cabin gradually floats up, the telescopic frame will move upward with the cabin. During this process, the height and position of the main frame will not be affected, and the height and pitch angle of the carrying body will not be affected, thereby improving the overall stability and safety of the ship unloader.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figures 1 to 7 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The present application provides a lifting mechanism for a ship unloader, the ship unloader includes a carrier body 100 for being arranged on shore, the carrier body 100 can be used to transport cargo from a ship cabin. The lifting mechanism may include a main frame 200, a telescopic frame 300, a lifting drive mechanism and at least one set of hoists 400.

[0034] The main frame 200 is connected to the carrier body 100, and the main frame 200 is provided with an upper loading platform 210. The telescopic frame 300 is used to stand in the cabin, and the telescopic frame 300 is connected to the main frame 200 in an axially movable manner, and the telescopic frame 300 is provided with a lower loading platform 310, and the lower loading platform 310 is located below the upper loading platform 210. Each set of hoists 400 has at least one hoisting part 410, and the hoist 400 is configured to drive at least one hoisting part 410 to move, so as to transfer the goods on the lower loading platform 310 to the upper loading platform 210. The lifting drive mechanism is connected to the main frame 200 and the telescopic frame 300, and is configured to drive the telescopic frame 300 to move along the axial direction of the main frame 200, or release the drive of the telescopic frame 300, so that the telescopic frame 300 is subjected to the force of the cabin and moves along the axial direction of the main frame 200.

[0035] In this embodiment, the carrier body 100 can be arranged on the shore, and it can serve as a stable base to support components such as the main frame 200 and the telescopic frame 300. In addition, a conveyor belt can be arranged on the carrier body 100 to transport the goods lifted by the lifting mechanism to the shore.

[0036] The main frame 200 can be connected to one side of the carrier body 100 by hinged connection or fixed connection so as to extend above the cabin. The telescopic frame 300 is connected to the main frame 200 and can move along the axial direction of the main frame 200, so that the bottom of the telescopic frame 300 can fall on the bottom wall of the cabin by lifting along the main frame 200.

[0037] The unloading platform 310 is arranged at the bottom of the telescopic frame 300 , so that when the telescopic frame 300 falls on the bottom wall of the cabin, it is convenient to transport the goods in the cabin to the unloading platform 310 .

[0038] The lift 400 lifts the lower stage 310 upward to the upper stage 210 using a lift portion 410 that moves between the lower stage 310 and the upper stage 210 .

[0039] Since the upper loading platform 210 is disposed on the main frame 200 and the main frame 200 is connected to the carrier body 100 , the upper loading platform 210 is always connected to the transport entrance of the carrier body 100 , and there will be no misalignment problem.

[0040] In this embodiment, the lifting drive mechanism can drive the telescopic frame 300 to move along the axial direction of the main frame 200. During the preliminary assembly, the main frame 200, the telescopic frame 300 and the hoist 400 can be installed first. The carrier body 100 approaches the cargo ship and stops, and the telescopic frame 300 is lifted to a suitable position in the main frame 200 so that the telescopic frame 300 is above the hatch, and the lowest end is higher than the top of the cabin to keep a certain safety distance. Finally, the telescopic frame 300 is driven by the lifting drive mechanism to cross the cabin top and enter the interior. A pressure sensor and a collision prevention block are set at the bottom of the telescopic frame 300. When the telescopic frame 300 descends and approaches the bottom of the cabin, it gradually slows down and falls on the bottom surface of the cabin. After completing the transportation operation, the telescopic frame 300 is lifted out of the cabin top by the lifting drive mechanism, and the carrier body 100 drives the telescopic frame 300 and the lifting mechanism thereon back to the shore.

[0041] It can be seen that the lifting mechanism of this embodiment, which sends the telescopic frame 300 into and out of the cabin through the lifting drive mechanism, is simple and easy to operate, and has efficient disassembly, which is conducive to improving the transportation efficiency.

[0042] In addition, the lifting drive mechanism of this embodiment can also release the drive on the telescopic frame 300, so that the telescopic frame 300 moves along the axial direction of the main frame 200 under the force of the cabin.

[0043] As the cargo in the cabin is continuously transported out, the cabin gradually floats up, and the telescopic frame 300 will move upward with the cabin. When the lifting drive mechanism releases the drive on the telescopic frame 300, the telescopic frame 300 can freely rise and fall relative to the main frame 200, so that the telescopic frame 300 will not drive the main frame 200 to move as the cabin floats up, and will not affect the carrier body 100 connected to the main frame 200, ensuring that the height and pitch angle of the main frame 200 and the carrier body 100 will not be affected, thereby improving the overall stability and safety of the ship unloader.

[0044] In some embodiments, the lifting drive mechanism may further include a lifting motor 600 and a transmission member 610 , wherein the lifting motor 600 is fixed to the main frame 200 , and the transmission member 610 is installed on the output shaft of the lifting motor 600 and connected to the telescopic frame 300 .

[0045] Furthermore, the transmission member 610 may also be configured as a gear rack mechanism. Specifically, the transmission member 610 may include a gear 612 and a rack 614, wherein the gear 612 is mounted on the lifting motor 600, and the rack 614 is connected to the telescopic frame 300 and meshes with the gear 612. When the telescopic frame 300 is lifted or lowered, the lifting motor 600 is started, the lifting motor 600 drives the gear 612 to rotate, the gear 612 drives the rack 614 to lift up and down, and the rack 614 drives the telescopic frame 300 to lift up and down.

[0046] Of course, the transmission member 610 may be in a form other than the rack and pinion mechanism described above. The transmission member 610 may also be configured as other forms of linear conversion mechanisms, such as a ball screw mechanism.

[0047] Furthermore, the lifting drive mechanism may also include a reducer, which may be arranged between the transmission member 610 and the lifting motor 600 to reduce the rotation speed so as to control the lifting rate of the telescopic frame 300 within a reasonable and stable range to avoid accidents.

[0048] In some embodiments, the lifting motor 600 may further include a clutch 620 , which is disposed on the output shaft of the lifting motor 600 and is used to release or maintain the output of the lifting motor 600 to the transmission member 610 .

[0049] In some specific embodiments, the clutch 620 can use an electromagnetic clutch, which is a device that realizes clutch action through electromagnetic force. Its working principle is: when power is turned on, the electromagnetic coil generates a magnetic field, which attracts or repels the moving part of the clutch 620, thereby realizing the transmission or interruption of power.

[0050] From the above, it can be seen that during the assembly process, the telescopic frame 300 is lowered into the cabin by a lifting drive mechanism, and during the transportation operation, the telescopic frame 300 needs to maintain a free lifting state relative to the main frame 200 so that it can float up with the cabin.

[0051] In this embodiment, the clutch 620 is disposed on the output shaft of the lifting motor 600 , and can control the output of the lifting motor 600 to the transmission member 610 .

[0052] During the assembly process, the clutch 620 is controlled to maintain the output of the lifting motor 600 to the transmission member 610 , so that the telescopic frame 300 is driven to rise and fall through the output of the lifting motor 600 to the transmission member 610 .

[0053] During the transportation operation, the clutch 620 is controlled to release the output of the lifting motor 600 to the transmission member 610, so that the telescopic frame 300 is in a free lifting state. When the cargo in the cabin is continuously transported out, the cabin prompts the telescopic frame 300 to float up. The telescopic frame 300 floats relative to the main frame 200, which will not affect the main frame 200, and will not cause the shaking of the carrying body 100 and the change of the transportation angle of the carrying body 100.

[0054] In some embodiments, the ship unloader may also include at least one set of limiting mechanisms for constraining the lifting and lowering trajectory of the telescopic frame 300, each set of limiting mechanisms includes a guide rail 650 and a guide wheel 640 that cooperates with the guide rail 650, the guide rail 650 is arranged on one of the main frame 200 and the telescopic frame 300, and the guide wheel 640 is arranged on the other of the main frame 200 and the telescopic frame 300.

[0055] In some specific embodiments, two sets of limiting mechanisms are provided, and the two sets of limiting mechanisms are respectively provided on two opposite sides of the telescopic frame 300 .

[0056] Further, the guide rail 650 can be mounted on the telescopic frame 300 by fasteners, the guide wheel 640 can be rotatably mounted on the main frame 200, and at least a portion of the guide wheel 640 extends into the interior of the guide rail 650 to cooperate with the guide rail 650. During the lifting and lowering process of the telescopic frame 300, the lifting and lowering trajectory of the telescopic frame 300 is constrained by the cooperation between the guide wheel 640 and the guide rail 650. In addition, the guide wheel 640 can be rotatably arranged inside the guide rail 650, which can effectively reduce the friction between the two, so that the lifting and lowering of the telescopic frame 300 is smoother and reduces noise.

[0057] Of course, in some other embodiments, the guide rail 650 may also be set on the main frame 200, and the guide wheel 640 may be installed on the telescopic frame 300 through fasteners. The cooperation between the two can also constrain the lifting trajectory of the telescopic frame 300.

[0058] In some embodiments, the lifting machine 400 may further include a frame 420 and a transmission chain 430. The frame 420 is fixed inside the telescopic frame 300, and the frame 420 has an annular guide rail 422. The transmission chain 430 is disposed on the annular guide rail 422, and at least one lifting part 410 is disposed on the transmission chain 430. The transmission chain 430 is configured to move along the annular guide rail 422 in a controlled manner to drive at least one lifting part 410 to move up and down in a circular manner, so that the lifting part 410 passes through the lower loading platform 310 from bottom to top to transfer the goods on the lower loading platform 310 to the lifting part 410, and the lifting part 410 passes through the upper loading platform 210 from top to bottom to transfer the goods on the lifting part 410 to the upper loading platform 210.

[0059] In this embodiment, the frame 420 can be fixed to the inside of the telescopic frame 300 by fasteners, and the transmission chain 430 is disposed in the annular guide rail 422 so as to be hidden.

[0060] The lifting part 410 is fixedly disposed on the transmission chain 430 and protrudes from the frame 420 , so that the lifting part 410 can perform an upward and downward circular motion driven by the transmission chain 430 .

[0061] In this embodiment, the lifting part 410 moves in a circular motion up and down. Specifically, each lifting part 410 can first move upward in a straight line, then turn at the highest point to move downward, and finally turn at the lowest point to move upward, so as to continuously cycle.

[0062] The upper loading platform 210 and the lower loading platform 310 can both be set between the highest point and the lowest point of the operation of the lifting part 410, and the lower loading platform 310 can be set on the upward movement trajectory of the lifting part 410, and the upper loading platform 210 can be set on the downward movement trajectory of the lifting part 410, so that the lifting part 410 can pass through the lower loading platform 310 from bottom to top to take away the goods on the lower loading platform 310, and pass through the upper loading platform 210 from top to bottom to transfer the goods to the upper loading platform 210.

[0063] It can be seen that the ship unloader in the embodiment of the present application utilizes the lifting part 410 that moves in an upward and downward circular motion to pass through the lower loading platform 310 and the upper loading platform 210 to lift the goods. There is no pause during the lifting process, and the path is relatively short, so the lifting efficiency is high.

[0064] Furthermore, the number of the lifting parts 410 can be set to be multiple, which can further improve the lifting efficiency of the goods.

[0065] Furthermore, the elevator 400 may also include a circumferential drive mechanism, which includes a circumferential motor 440 and a sprocket set 450 . The circumferential motor 440 is fixed to the frame 420 , the circumferential motor 440 is connected to the sprocket set 450 , and the transmission chain 430 is arranged on the sprocket set 450 .

[0066] Specifically, the sprocket set 450 may include an upper sprocket 452 and a lower sprocket 454, both of which are rotatably mounted on the frame 420, and the transmission chain 430 is tightly stretched between the upper sprocket 452 and the lower sprocket 454, and is engaged with the upper sprocket 452 and the lower sprocket 454. The surrounding motor 440 may be connected to the upper sprocket 452 or the lower sprocket 454 to drive one of the upper sprocket 452 or the lower sprocket 454, and then drive the other to rotate through the transmission chain 430.

[0067] In some embodiments, each lifting part 410 has a plurality of cargo forks 411 arranged at intervals. The plurality of cargo forks 411 can be arranged horizontally to form a load-bearing surface for carrying cargo. The lifting part 410 also includes a mounting frame 412, and the plurality of cargo forks 411 are fixed to the frame 420 through the mounting frame 412.

[0068] The unloading platform 310 has a plurality of unloading barrels 312 arranged at intervals. The plurality of unloading barrels 312 can also be arranged horizontally to form a bearing surface for carrying goods. On the running track of the lifting part 410, the plurality of loading forks 411 and the plurality of unloading barrels 312 are arranged in a staggered manner. When the lifting part 410 passes through the unloading platform 310, the plurality of loading forks 411 pass through the gaps between the plurality of unloading barrels 312.

[0069] The upper loading platform 210 has a plurality of upper loading barrels 212 arranged at intervals. On the running track of the lifting part 410 , the plurality of loading forks 411 and the plurality of upper loading barrels 212 are staggeredly arranged. When the lifting part 410 passes through the upper loading platform 210 , the plurality of loading forks 411 pass through the gaps between the plurality of upper loading barrels 212 .

[0070] During a cargo lift, the lifting part 410 turns at the lowest point and moves upward to pass through the lower cargo platform 310 from bottom to top, and the multiple cargo forks 411 of the lifting part 410 pass through the multiple cargo barrels 312 of the lower cargo platform 310 to take away the cargo on the multiple cargo barrels 312 upward. During the process of the lifting part 410 turning at the highest point and moving downward, the lifting part 410 passes through the upper cargo barrels 212 from top to bottom, and the multiple cargo forks 411 of the lifting part 410 pass through the multiple cargo barrels 212 of the upper loading platform 210 to leave the cargo on the upper loading platform 210.

[0071] Furthermore, the unloading platform 310 also has an unloading rack 314 , wherein a plurality of unloading cargo barrels 312 are rotatably disposed on the unloading rack 314 around their respective circumferential directions so as to transfer cargo from the outside to the unloading platform 310 .

[0072] Specifically, the plurality of cargo unloading barrels 312 may be driven to rotate by a driving motor, or may be rotated by the friction force of the cargo.

[0073] In this embodiment, the plurality of unloading cargo barrels 312 are configured to rotate around their respective circumferential directions, so that the friction can be reduced during the transfer of the cargo to the unloading loading platform 310, making the transfer process more convenient and more efficient.

[0074] Furthermore, the upper loading platform 210 also has an upper loading rack 214 , wherein a plurality of upper loading racks 214 are rotatably disposed on the upper loading platform 210 around respective circumferential directions so as to transfer goods out of the upper loading platform 210 .

[0075] Similarly, the multiple loading barrels 212 can be driven to rotate by a driving motor or by the friction of the cargo. The multiple loading barrels 212 are configured to rotate around their respective circumferences, so that the friction can be reduced during the transfer of the cargo to the carrier body 100, making the transfer process more convenient and more efficient.

[0076] In some embodiments, the lifting mechanism may further include a conveyor 500 , which is disposed outside the main frame 200 and connected to the lower loading platform 310 , and is used to transport the goods to the lower loading platform 310 .

[0077] In some specific embodiments, the transporter 500 may be a telescopic roller machine, which has rollers, can be flexibly bent, and is combined in groups, so as to have a wide operating range in the cargo hold, thereby saving the time of the ship unloader's position transfer and improving the operating efficiency.

[0078] When the telescopic frame 300 is lowered to the bottom of the cabin, the telescopic frame 300 and the telescopic roller can be connected together by fasteners, and the outlet of the telescopic roller machine is directly opposite to the lower loading platform 310 on the telescopic frame 300.

[0079] During operation, the packaged cargo in the cabin is manually carried to the telescopic roller machine, and transported to the lower loading platform 310 on the telescopic frame 300, and then lifted to the upper loading platform by the hoist 400, and finally transported to the shore by the carrier body 100.

[0080] Furthermore, the elevator 400 can be provided in one set or two sets. When the elevator 400 is provided in one set, the lower loading platform 310, the upper loading platform 210 and the conveyor 500 are provided in one set respectively. When the elevator 400 is provided in two sets, the lower loading platform 310, the upper loading platform 210 and the conveyor 500 are provided in two sets respectively, so as to improve the handling efficiency.

[0081] Furthermore, the unloading platform 310 further includes a protective plate 316, which is disposed on a side of the unloading platform 310 facing away from the conveyor 500 to stop the cargo and prevent the cargo from falling.

[0082] Furthermore, the lower loading platform 310 may also include a stop plate 317, which may be movably disposed on a side of the lower loading platform 310 close to the conveyor 500. The stop plate 317 has a stopping state and a releasing state. When in the stopping state, the stop plate 317 protrudes from the upper surface of the lower loading platform 310. When in the releasing state, the stop plate 317 avoids the upper surface of the lower loading platform 310.

[0083] In this embodiment, the stop plate 317 can control the goods entering the unloading platform 310 by switching between the stopping state and the releasing state. This can prevent subsequent goods from occupying the unloading platform 310 when the upper goods have not been transferred out, prevent multiple goods from blocking the passage of the lifting part 410, and prevent multiple goods from being taken away at the same time when they are on the unloading platform 310 to prevent them from falling.

[0084] Furthermore, the lifting device is also configured to: when it is detected that the lifting part 410 approaches the lower part of the lower loading platform 310, drive the stop plate 317 to be in a release state, or, when it is not detected that the lifting part 410 approaches the lower part of the lower loading platform 310, drive the stop plate 317 to be in a stopping state.

[0085] In this way, when it is detected that a lifting part 410 is approaching below the unloading platform 310, it can be considered that a lifting part 410 is about to lift the goods. At this time, the stop plate 317 is driven to avoid the upper surface of the unloading platform 310, allowing the goods to enter the unloading platform 310. When the lifting part 410 arrives, the goods can be taken away without causing the goods to be stranded.

[0086] When the lifting part 410 is not detected approaching the lower part of the lower loading platform 310, the stop plate 317 is driven to be in a stopping state. At this time, the stop plate 317 is driven to protrude from the upper surface of the lower loading platform 310 to prohibit the goods from entering the lower loading platform 310, thereby preventing the goods from being stranded on the lower loading platform 310 for a long time.

[0087] In some embodiments, the lower loading platform 310 further includes a stop bracket 318 and a driving push rod 319. The stop bracket 318 is fixed to a side of the lower loading platform 310 close to the conveyor 500. The driving push rod 319 is disposed on the stop bracket 318 and connected to the stop plate 317. The driving push rod 319 is configured to controllably drive the stop plate 317 to switch between a stop state and a release state.

[0088] In some specific embodiments, the driving push rod 319 can be configured as a power cylinder (pneumatic or hydraulic), the main body of the power cylinder is fixed on the stop bracket 318, and the piston of the power cylinder is connected to the stop plate 317.

[0089] When the stop plate 317 switches from the release state to the stop state, the piston of the power cylinder controller extends upward to push the stop plate 317 upward to protrude the upper surface of the lower loading platform 310. When the stop plate 317 switches from the stop state to the release state, the piston of the power cylinder controller retracts downward to retract the stop plate 317 downward to the bottom of the lower loading platform 310 to avoid the upper surface of the lower loading platform 310.

[0090] The present application also provides a ship unloader, which may include a carrier body 100, which may be connected to a main frame 200 by a hinged manner or a fixed connection manner, and its transport inlet is connected to an upper loading platform 210 of the main frame 200 so as to transport the cargo on the upper loading platform 210 to the shore.

[0091] Furthermore, the carrier body 100 may also include a supporting truss 110 and an intermediate conveyor 120 , wherein the supporting truss 110 is used to support the intermediate conveyor 120 ; the supporting truss 110 is hinged to the main frame 200 , and the entrance end of the intermediate conveyor 120 is connected to the upper loading platform 210 .

[0092] In some specific embodiments, the support truss 110 may adopt a frame structure to ensure strength while being light in weight.

[0093] The intermediate conveyor 120 may be a conveyor belt conveyor. When the intermediate conveyor 120 is connected to the main frame 200, the inlet end of the intermediate conveyor 120 is connected to the upper loading platform 210, and the goods on the upper loading platform 210 are pushed out and enter the intermediate conveyor 120, and continue to be transferred to the shore.

[0094] Furthermore, the ship unloader may further include at least one first telescopic rod 130 , wherein a first end of each first telescopic rod 130 is hinged to the main frame 200 , and a second end of each first telescopic rod 130 is hinged to the supporting truss 110 .

[0095] In some specific embodiments, the first telescopic rod 130 may be configured as a hydraulic rod. Since the support truss 110 is hinged to the main frame 200, the first end of the first telescopic rod 130 is hinged to the main frame 200, and the second end is hinged to the support truss 110, the support truss 110 can be pushed upward or stretched downward by the first telescopic rod 130, that is, the pitch angle of the intermediate conveyor 120 can be adjusted by the extension and retraction of the first telescopic rod 130.

[0096] In some embodiments, the carrier body 100 may further include a tail conveyor 140 , the inlet end of the tail conveyor 140 is connected to the outlet end of the middle conveyor 120 , and the tail conveyor 140 extends downward from the inlet end to the outlet end thereof.

[0097] The tail conveyor 140 may also be a conveyor belt conveyor. The inlet end of the tail conveyor 140 is connected to the outlet end of the middle conveyor 120, so that the goods on the middle conveyor 120 can be received, and because the tail conveyor 140 extends downward from its inlet end to the outlet end, the outlet end of the tail conveyor 140 is close to the ground, so that the goods on it can be transported to the ground.

[0098] Further, the carrier body 100 may further include a traveling frame 150 and at least one second telescopic rod 180. The traveling frame 150 is used to support the tail conveyor 140. The first end of each second telescopic rod 180 is hinged to the traveling frame 150, and the second end of each second telescopic rod 180 is hinged to the intermediate conveyor 120.

[0099] The main body of the walking frame 150 can be a truss structure made of channel steel, H-shaped steel and other profiles, which is relatively simple and light. The walking frame 150 also includes a walking drive mechanism, which can be a heavy-duty AGV with an autonomous walking function.

[0100] The first end of the second telescopic rod 180 is hinged to the walking frame 150, and the second end of each second telescopic rod 180 is hinged to the intermediate conveyor 120. Therefore, the supporting truss 110 can be pushed upward or stretched downward by the second telescopic rod 180, that is, the angle between the intermediate conveyor 120 and the tail conveyor 140 can be adjusted by the extension and retraction of the second telescopic rod 180.

[0101] Furthermore, the ship unloader may further include an electric-controlled hydraulic unit 170, which may be used to provide hydraulic control to the first telescopic rod 130 and the second telescopic rod 180. The housing of the electric-controlled hydraulic unit 170 is a standard container, which may be arranged on the traveling frame 150, which may make the whole more compact on the one hand, and on the other hand, the electric-controlled hydraulic unit 170 may be used to provide a certain counterweight for the traveling frame 150 to balance the traveling frame 150.

[0102] Furthermore, the carrier body 100 may also include a counterweight portion 160, which is disposed on the traveling frame 150 to balance the carrier body 100, so that the overall structure is more balanced and the stability of the transportation process is ensured.

[0103] In some embodiments, the elevator 400 is provided in two sets, and correspondingly, the upper loading platform 210 is provided in two sets, and the two upper loading platforms 210 are arranged in parallel. The intermediate conveyor 120 has two sets of intermediate conveying parts 122 arranged in parallel, and the two sets of intermediate conveying parts 122 are connected to the two upper loading platforms 210. The intermediate conveyor 120 can respectively receive the goods output by the two upper loading platforms 210, thereby improving work efficiency.

[0104] Furthermore, the inlet end of the tail conveyor 140 is connected to the outlet end of the middle conveyor 120, and the tail conveyor 140 has two sets of tail conveying parts 142 arranged in parallel, and the two sets of tail conveying parts 142 are connected to the two middle conveying parts 122, so that the two tail conveying parts 142 of the tail conveyor 140 can respectively receive the goods output by the two middle conveying parts 122 of the middle conveyor 120, thereby improving work efficiency.

[0105] The working principle of the ship unloader of this application is:

[0106] 1. Preliminary configuration process of ship unloader:

[0107] The carrier body 100, the main frame 200, the telescopic frame 300 and the hoist 400 are pre-installed. The carrier body 100 drives close to the cargo ship and stops, and the telescopic frame 300 is lifted to a suitable position in the main frame 200, so that the telescopic frame 300 is above the hatch, and the lowest end of the telescopic frame 300 is higher than the top of the cabin, and a certain safety distance is reserved.

[0108] The telescopic frame 300 is moved over the cabin top and into the interior by the lifting drive mechanism. The telescopic frame 300 and the bottom surface of the cabin are kept in a vertical state. A pressure sensor and an anti-collision block are arranged at the bottom of the telescopic frame 300. When the telescopic frame 300 moves downward and approaches the cabin bottom, it gradually slows down and falls on the bottom surface of the cabin.

[0109] When the telescopic frame 300 drops to the bottom of the cabin, the clutch 620 is controlled to release the output of the lifting motor 600 to the transmission member 610, so that the lifting frame is in a free lifting state. When the cargo in the cabin is continuously transported out, the cabin prompts the telescopic frame 300 to float up, and the telescopic frame 300 rises relative to the main frame 200. Therefore, the floating of the telescopic frame 300 will not affect the main frame 200, and will not cause the shaking of the carrying body 100 and the change of the transportation angle of the carrying body 100.

[0110] When the telescopic frame 300 is lowered to the bottom of the cabin, the telescopic frame 300 is connected to the conveyor 500 by fasteners, and the outlet of the conveyor 500 is aligned with the lower loading platform 310 on the telescopic frame 300 .

[0111] 2. The transportation process of the ship unloader:

[0112] The conveyor 500, the circulating drive mechanism of the elevator 400, the intermediate conveyor 120 and the tail conveyor 140 are started.

[0113] The packaged goods in the cabin are manually carried to the conveyor. When it is detected that the lifting part 410 approaches below the lower loading platform 310, the stop plate 317 is driven to be in a release state, and the goods enter the lower loading platform 310.

[0114] When the lifting part 410 passes through the lower loading platform 310 from bottom to top, the multiple cargo forks 411 of the lifting part 410 pass through the multiple cargo barrels 312 of the lower loading platform 310 to carry the cargo on the multiple cargo barrels 312 upward.

[0115] After the lifting part 410 turns at the highest point and moves downward, the lifting part 410 passes through the plurality of upper cargo tubes 212 of the upper loading platform 210 from top to bottom, leaving the cargo on the upper loading platform 210 .

[0116] The goods are transported outward to the middle conveyor 120 by rolling of the multiple upper loading cylinders 212 of the upper loading platform 210 , and the middle conveyor 120 transports the goods to the rear conveyor 140 , and finally the goods fall from the exit end of the rear conveyor 140 to near the ground.

[0117] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0118] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0119] It should be easily understood that the terms “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” means not only “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0120] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lifting mechanism for a ship unloader, the ship unloader comprising a carrier body (100) for being arranged on shore, the lifting mechanism comprising: A main frame (200), the main frame (200) being connected to the carrier body (100), and the main frame (200) being provided with an upper loading platform (210); A telescopic frame (300) is used to stand in the cabin, the telescopic frame (300) is connected to the main frame (200) in a manner that it can move along the axial direction of the main frame (200), and the telescopic frame (300) is provided with a lower loading platform (310) located below the upper loading platform (210); at least one set of elevators (400), each set of the elevators (400) having at least one lifting part (410), the elevators (400) being configured to drive at least one of the lifting parts (410) to move so as to transfer the cargo on the lower loading platform (310) to the upper loading platform (210); A lifting drive mechanism is connected to the main frame (200) and the telescopic frame (300), and is configured to drive the telescopic frame (300) to move along the axial direction of the main frame (200), or to release the drive of the telescopic frame (300) so that the telescopic frame (300) moves along the axial direction of the main frame (200) under the force of the cabin.

2. The lifting mechanism according to claim 1, wherein: The lifting drive mechanism comprises: a lifting motor (600) and a transmission member (610); the lifting motor (600) is fixed to the main frame (200); the transmission member (610) is installed on the output shaft of the lifting motor (600) and is connected to the telescopic frame (300).

3. The lifting mechanism according to claim 2, wherein: The transmission member (610) comprises a gear (612) and a rack (314); the gear (612) is mounted on the lifting motor (600); the rack (314) is arranged on the telescopic frame (300) along the height direction of the telescopic frame (300) and meshes with the gear (612).

4. The lifting mechanism according to claim 2, wherein: The lifting motor (600) further comprises: A clutch (620) is provided on the output shaft of the lifting motor (600) and is used to release or maintain the output of the lifting motor (600) to the transmission member (610).

5. The lifting mechanism according to claim 1, further comprising: At least one set of limiting mechanisms is used to constrain the lifting and lowering trajectory of the telescopic frame (300), and each set of the limiting mechanisms includes a guide rail (650) and a guide wheel (640) matched with the guide rail (650), the guide rail (650) is arranged on one of the main frame (200) and the telescopic frame (300), and the guide wheel (640) is arranged on the other of the main frame (200) and the telescopic frame (300).

6. The lifting mechanism according to any one of claims 1 to 5, wherein: The lifting machine (400) further comprises: A frame (420), the frame (420) being fixed inside the telescopic frame (300), the frame (420) having an annular guide rail (422); A transmission chain (430), wherein the transmission chain (430) is arranged on the annular guide rail (422), and at least one of the lifting parts (410) is arranged on the transmission chain (430). The transmission chain (430) is configured to move along the annular guide rail (422) in a controlled manner to drive at least one of the lifting parts (410) to move up and down in a circular manner, so that the lifting part (410) passes through the lower loading platform (310) from bottom to top to transfer the goods on the lower loading platform (310) to the lifting part (410), and the lifting part (410) passes through the upper loading platform (210) from top to bottom to transfer the goods on the lifting part (410) to the upper loading platform (210).

7. The lifting mechanism according to claim 6, wherein: The lifting machine (400) further comprises: A surround drive mechanism, the surround drive mechanism comprising a surround motor (440) and a sprocket group (450), the surround motor (440) being fixed to the frame (420), the surround motor (440) being connected to the sprocket group (450), and the transmission chain (430) being arranged on the sprocket group (450).

8. The lifting mechanism according to claim 6, wherein: Each of the lifting parts (410) has a plurality of cargo forks (411) arranged at intervals; The unloading platform (310) has a plurality of unloading barrels (312) arranged at intervals. On the running track of the lifting part (410), the plurality of loading forks (411) and the plurality of unloading barrels (312) are arranged in a staggered manner. When the lifting part (410) passes through the unloading platform (310), the plurality of loading forks (411) pass through the gaps between the plurality of unloading barrels (312); The upper loading platform (210) has a plurality of upper loading barrels (212) arranged at intervals. On the running track of the lifting part (410), the plurality of loading forks (411) and the plurality of upper loading barrels (212) are arranged in a staggered manner. When the lifting part (410) passes through the upper loading platform (210), the plurality of loading forks (411) pass through the gaps between the plurality of upper loading barrels (212).

9. The lifting mechanism according to claim 8, wherein: The unloading platform (310) further comprises an unloading rack (314), wherein a plurality of unloading barrels (312) are arranged on the unloading rack (314) so ​​as to rotate around their respective circumferential directions; and / or, The upper loading platform (210) also has an upper loading rack (214), wherein a plurality of upper loading barrels (212) are arranged on the upper loading rack (214) so ​​as to rotate around their respective circumferential directions.

10. The lifting mechanism according to any one of claims 1 to 5, further comprising: A transporter (500) is used to be arranged in the cabin and connected to the unloading platform (310) to transfer the cargo in the cabin to the unloading platform (310).

11. The lifting mechanism according to claim 10, wherein: The download platform (310) further includes: A protective plate (316) is disposed on a side of the lower loading platform (310) facing away from the transporter (500).

12. The lifting mechanism according to claim 10, wherein: The download platform (310) further includes: A stop plate (317), wherein the stop plate (317) is movably arranged on a side of the lower loading platform (310) close to the conveyor (500), and the stop plate (317) has a stopping state and a releasing state. When in the stopping state, the stop plate (317) protrudes from the upper surface of the lower loading platform (310), and when in the releasing state, the stop plate (317) avoids the upper surface of the lower loading platform (310).

13. The lifting mechanism according to claim 12, wherein: The download platform (310) further includes: a stop bracket (318), the stop bracket (318) being fixed to a side of the lower loading platform (310) close to the conveyor (500); A driving push rod (319), wherein the driving push rod (319) is disposed on the stop bracket (318) and connected to the stop plate (317), and the driving push rod (319) is configured to controllably drive the stop plate (317) to switch between the stop state and the release state.

14. A ship unloader comprising the lifting mechanism according to any one of claims 1 to 13.

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