Ship unloader and its lifting mechanism

Abstract

The application provides a ship unloader and a lifting mechanism thereof. The lifting mechanism comprises a main frame, an extension frame, a lifting driving mechanism and at least one set of lifting machine. The main frame is connected with a carrying body. The main frame is provided with an upper loading platform. The extension frame is connected with the main frame. The extension frame is provided with a lower loading platform below the upper loading platform. The lifting machine has at least one lifting part. The lifting machine is configured to drive the lifting part to move, so as to transfer the goods on the lower loading platform to the upper loading platform. The lifting driving mechanism is connected with the main frame and the extension frame. The lifting driving mechanism is configured to drive the extension frame to move along the axial direction of the main frame, or release the driving of the extension frame, so that the extension frame moves along the axial direction of the main frame under the action of the cabin. In the lifting mechanism, the extension frame moves upward along with the cabin. The height and position of the main frame are not affected. The height and pitch angle of the carrying body are not affected. The stability and safety of the ship unloader as a whole 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 to move cargo from a ship ashore. In conventional ship unloaders, cargo is lifted up using a lifting device and then transported to a designated location on shore using conveying tools such as belts connected to the lifting device.

[0003] However, the ship unloaders of the related art also have certain drawbacks. The lifting device is rigidly connected to the conveying tool. As the cargo inside the cargo ship is continuously transferred outward, the cargo ship becomes lighter and floats up, which in turn causes the lifting device to float up, and the conveying tool to move with it. This makes the entire ship unloader unstable and even poses a safety hazard. Therefore, improvements are necessary. Summary of the Invention

[0004] The present application provides a lifting mechanism that improves the overall stability and safety of a ship unloader. To achieve the above objectives, 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 carrying body for being set on the shore, the lifting mechanism includes: a main frame, the main frame is connected to the carrying 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 so as to be movably connected 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 cargo 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 embodiment, 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 connected to the telescopic frame.

[0007] As an optional embodiment, the transmission member includes a gear and a rack, the gear is installed on the lifting motor, and 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 embodiment, the lifting motor further includes: a clutch, which is provided 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 implementation, the lifting mechanism further comprises at least one set of limiting mechanism for restricting the lifting track of the telescopic frame, each set of limiting mechanism comprises a guide rail and a guide wheel matched with 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 one of the main frame and the telescopic frame.

[0010] As an optional implementation, the lifting machine further comprises a rack fixed to the inside of the telescopic frame, the rack has an annular guide rail, a transmission chain arranged on the annular guide rail, and at least one lifting part arranged on the transmission chain, the transmission chain is configured to move along the annular guide rail under control to drive the at least one lifting part to move up and down around, 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 on the lifting part to the upper loading platform.

[0011] As an optional implementation, the lifting machine further comprises a circumferential driving mechanism, the circumferential driving mechanism comprises a circumferential motor and a sprocket set, the circumferential motor is fixed to the rack, the circumferential motor is connected with the sprocket set, and the transmission chain is arranged on the sprocket set.

[0012] As an optional implementation, each lifting part has a plurality of spaced-apart cargo carrying forks, the lower loading platform has a plurality of spaced-apart lower cargo cylinders, and on the running track of the lifting part, the plurality of cargo carrying forks are arranged in a staggered manner with the plurality of lower cargo cylinders, when the lifting part passes through the lower loading platform, the plurality of cargo carrying forks pass through the gaps between the plurality of lower cargo cylinders; the upper loading platform has a plurality of spaced-apart upper cargo cylinders, and on the running track of the lifting part, the plurality of cargo carrying forks are arranged in a staggered manner with the plurality of upper cargo cylinders, when the lifting part passes through the upper loading platform, the plurality of cargo carrying forks pass through the gaps between the plurality of upper cargo cylinders.

[0013] As an optional implementation, the lower loading platform further has a lower loading rack, and the plurality of lower cargo cylinders are arranged on the lower loading rack to rotate around the respective circumferences; and / or the upper loading platform further has an upper loading rack, and the plurality of upper cargo cylinders are arranged on the upper loading rack to rotate around the respective circumferences.

[0014] As an optional implementation, the lifting mechanism further comprises a conveyor arranged in the cabin and opposite to the lower loading platform to transfer the goods in the cabin to the lower loading platform.

[0015] As an optional implementation, the lower loading platform further comprises a protective plate arranged on the side of the lower loading platform away from the conveyor.

[0016] As an optional implementation, the download platform further comprises a stop plate movably arranged on the side of the download platform close to the conveyor, the stop plate having a stop state and a release state, when in the stop state, the stop plate protrudes from the upper surface of the download platform, when in the release state, the stop plate avoids the upper surface of the download platform.

[0017] As an optional implementation, the download platform further comprises a stop bracket fixed on the side of the download platform close to the conveyor; and a driving push rod arranged on the stop bracket and connected with the stop plate, the driving push rod being configured to drive the stop plate to switch between the stop state and the release state under control.

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

[0019] The lifting mechanism of the present application, since the main frame is connected with the carrying body, the main frame is provided with the upper loading platform, and the telescopic frame is movably arranged on the main frame, the lifting machine can lift the goods to the upper loading platform and transport them to the shore by the carrying body, and as the goods in the cabin are continuously transported out, the cabin gradually floats up, the telescopic frame moves upward with the cabin, in this process, the height and position of the main frame are not affected, and the height and pitch angle of the carrying body are also not affected, thereby improving the stability and safety of the ship unloader as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0021] Figure 1 The overall structure schematic diagram of the ship unloader of one embodiment of the present application;

[0022] Figure 2 The partial structure schematic diagram of the ship unloader of one embodiment of the present application;

[0023] Figure 3 The schematic diagram of the main frame and the telescopic frame in the ship unloader of one embodiment of the present application;

[0024] Figure 4 The position relationship schematic diagram of the two lifting machines in the ship unloader of one embodiment of the present application;

[0025] Figure 5 The principle schematic diagram of the surrounding driving mechanism in the ship unloader of one embodiment of the present application;

[0026] Figure 6 This is a structural schematic diagram of a lower 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 one embodiment of the present application.

[0028] Description of reference numerals:

[0029] 100, Carrier; 110, Support Truss; 120, Intermediate Conveyor; 122, Intermediate Conveying Unit; 130, First Telescopic Rod; 140, Tail Conveyor; 142, Tail Conveying Unit; 150, Traveling Frame; 160, Counterweight Unit; 170, Electric Hydraulic Unit; 180, Second Telescopic Rod; 200, Main Frame; 210, Upper Loading Platform; 212, Upper Loading Bucket; 214, Upper Loading Rack; 300, Telescopic Frame; 310, Lower Loading Platform; 312, Lower Loading Bucket; 314, Lower Loading Rack; 316, Protective Plate; 317. Stop plate; 318. Stop bracket; 319. Drive 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 assembly; 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 transport cargo in cargo ships. In the ship unloader of the related art, 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 conveying tools such as belts connected to the lifting equipment are used to transport the cargo to the designated location on shore. As the cargo in the cargo ship is continuously transported outward, the cargo ship will float up after becoming lighter, and the conveying tools of the transport equipment connected to the lifting equipment will also move accordingly. This will cause the posture of the entire ship unloader to be unstable and even pose a safety hazard, 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 described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. The embodiments and features in the embodiments can be combined with each other without conflict.

[0033] The present application provides a lifting mechanism for a ship unloader, which includes a carrying body 100 arranged on a shore, and the carrying body 100 is used for transporting goods from a ship cabin. The lifting mechanism can include a main frame 200, an extension frame 300, a lifting driving mechanism and at least one set of lifting machine 400.

[0034] The main frame 200 is connected with the carrying body 100, and the main frame 200 is provided with an upper loading platform 210. The extension frame 300 is arranged to stand in the ship cabin, and the extension frame 300 is movably connected with the main frame 200 along the axial direction of the main frame 200, and the extension 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 lifting machine 400 has at least one lifting part 410, and the lifting machine 400 is configured to drive the at least one lifting part 410 to move, so as to transfer the goods on the lower loading platform 310 to the upper loading platform 210. The lifting driving mechanism is connected with the main frame 200 and the extension frame 300, and is configured to drive the extension frame 300 to move along the axial direction of the main frame 200, or to release the driving of the extension frame 300, so that the extension frame 300 is driven by the force of the ship cabin to move along the axial direction of the main frame 200.

[0035] In the embodiment, the carrying body 100 can be arranged on the shore, which can be used as a stable base to support the main frame 200 and the extension frame 300 and the like. In addition, the carrying body 100 can be provided with a conveying belt for transporting the goods lifted by the lifting mechanism to the shore.

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

[0037] The lower loading platform 310 is arranged at the bottom of the extension frame 300, so that when the extension frame 300 is lowered to the bottom wall of the ship cabin, the goods in the ship cabin can be easily transported into the lower loading platform 310.

[0038] The lifting mechanism 400 lifts the loading platform 310 upward to the unloading platform 210 by the lifting part 410 moving between the loading platform 310 and the unloading platform 210.

[0039] Since the unloading platform 210 is arranged on the main frame 200, and the main frame 200 is connected with the carrying body 100, the unloading platform 210 is always opposite to the transport entrance of the carrying body 100, and there is no misalignment problem.

[0040] In the embodiment, the lifting driving mechanism can drive the telescopic frame 300 to move along the axial direction of the main frame 200. When the preliminary assembly is performed, the main frame 200, the telescopic frame 300 and the lifting mechanism 400 can be installed first. The carrying body 100 is parked close to the ship, 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 of the ship, and the lowest end is higher than the top of the hatch to keep a certain safety distance. Finally, the telescopic frame 300 is driven by the lifting driving mechanism to pass through the top of the hatch and enter the inside. The pressure sensor and the anti-collision block are arranged at the bottom of the telescopic frame 300, and when the telescopic frame 300 approaches the bottom of the hatch, the speed is gradually reduced and falls on the bottom surface of the hatch. After the transport operation is completed, the telescopic frame 300 is lifted out of the top of the hatch by the lifting driving mechanism, and the carrying body 100 drives the telescopic frame 300 and the lifting mechanism thereon back to the shore.

[0041] Therefore, the lifting mechanism of the embodiment can send the telescopic frame 300 into and out of the hatch by the lifting driving mechanism, which is simple and easy to operate, efficient to disassemble, and beneficial to improve the transfer efficiency.

[0042] In addition, the lifting driving mechanism of the embodiment can also release the driving of the telescopic frame 300, so that the telescopic frame 300 moves along the axial direction of the main frame 200 under the action of the hatch.

[0043] As the goods in the hatch are continuously transported out, the hatch gradually floats up, and the telescopic frame 300 moves upward with the hatch. When the lifting driving mechanism releases the driving of the telescopic frame 300, the telescopic frame 300 can freely lift relative to the main frame 200, so that the telescopic frame 300 will not drive the main frame 200 to move with the hatch floating up, and will not affect the carrying body 100 connected with the main frame 200, so as to ensure that the height and the pitch angle of the main frame 200 and the carrying body 100 are not affected, and the stability and safety of the ship unloader are improved.

[0044] In some embodiments, the lifting driving mechanism can further include a lifting motor 600 and a transmission member 610. 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 with the telescopic frame 300.

[0045] Further, the transmission member 610 can also be configured as a rack and pinion mechanism. Specifically, the transmission member 610 can include a pinion 612 and a rack 614, wherein the pinion 612 is mounted on the lifting motor 600, and the rack 614 is connected to the telescopic frame 300 and engaged with the pinion 612. When lifting the telescopic frame 300, the lifting motor 600 is started, the lifting motor 600 drives the pinion 612 to rotate, the pinion 612 drives the rack 614 to move up and down, and the rack 614 drives the telescopic frame 300 to move up and down.

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

[0047] Further, the lifting drive mechanism can also include a speed reducer, which can be arranged between the transmission member 610, for reducing the rotating speed of the lifting motor 600, so as to control the lifting speed of the telescopic frame 300 within a reasonable and stable range, and avoid accidents.

[0048] In some embodiments, the lifting motor 600 can also include a clutch 620 arranged on the output shaft of the lifting motor 600, for disengaging or retaining the output of the lifting motor 600 to the transmission member 610.

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

[0050] As described above, during assembly, the telescopic frame 300 is lowered into the cabin by the lifting drive mechanism, and during the handling operation, the telescopic frame 300 needs to be kept in a freely lifting state relative to the main frame 200, so as to float up with the cabin.

[0051] In the present embodiment, the clutch 620 is arranged 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 assembly, the clutch 620 is controlled to retain the output of the lifting motor 600 to the transmission member 610, so that the telescopic frame 300 is driven to lift by the output of the lifting motor 600 to the transmission member 610.

[0053] During the transportation process, the control clutch 620 releases 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 goods in the cabin are continuously transported out, the cabin causes the telescopic frame 300 to float upwards, and the telescopic frame 300 floats upwards relative to the main frame 200, which does not affect the main frame 200, thereby not causing 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 can further include at least one set of limiting mechanism for restricting the lifting track of the telescopic frame 300. Each set of limiting mechanism 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 one of the main frame 200 and the telescopic frame 300.

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

[0056] Further, the guide rail 650 can be installed on the telescopic frame 300 by fasteners, and the guide wheel 640 is rotatably installed on the main frame 200, and at least part of the guide wheel 640 extends into the inside of the guide rail 650 to match with the guide rail 650. During the lifting of the telescopic frame 300, the lifting track of the telescopic frame 300 is restricted by the cooperation of the guide wheel 640 and the guide rail 650. In addition, the guide wheel 640 is rotatably arranged in the inside of the guide rail 650, which can effectively reduce the friction between the two, so that the telescopic frame 300 is more smooth when lifting, and the noise is reduced.

[0057] Of course, in other embodiments, the guide rail 650 can also be arranged on the main frame 200, and the guide wheel 640 can be installed on the telescopic frame 300 by fasteners, and the two can cooperate to restrict the lifting track of the telescopic frame 300.

[0058] In some embodiments, the lifting machine 400 can further include a rack 420 and a transmission chain 430. The rack 420 is fixed to the inside of the telescopic frame 300, and the rack 420 has an annular guide rail 422. The transmission chain 430 is arranged on the annular guide rail 422, and at least one lifting part 410 is arranged on the transmission chain 430. The transmission chain 430 is configured to move along the annular guide rail 422 under control to drive the at least one lifting part 410 to move up and down around, 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 of the lifting part 410 to the upper loading platform 210.

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

[0060] The lifting parts 410 are fixedly arranged on the transmission chain 430 and protrude from the frame 420, so that the lifting parts 410 can move up and down in a circular manner under the driving of the transmission chain 430.

[0061] In the embodiment, the lifting parts 410 move up and down in a circular manner. Specifically, each lifting part 410 can first move linearly upward, then turn at the highest point to move downward, and finally turn at the lowest point to move upward, so as to continuously circulate.

[0062] The uploading platform 210 and the downloading platform 310 can be arranged between the highest point and the lowest point of the movement of the lifting parts 410, and the downloading platform 310 can be arranged on the track of the upward movement of the lifting parts 410, and the uploading platform 210 can be arranged on the track of the downward movement of the lifting parts 410, so that the lifting parts 410 can pass through the downloading platform 310 from bottom to top to take away the goods on the downloading platform 310, and pass through the uploading platform 210 from top to bottom to transfer the goods to the uploading platform 210.

[0063] Therefore, it can be seen that the ship unloader in the embodiment of the application uses the lifting parts 410 moving up and down in a circular manner to pass through the downloading platform 310 and the uploading platform 210 to lift the goods, and the lifting process does not stop, and the path is short, so the lifting efficiency is high.

[0064] Further, the number of the lifting parts 410 can also be multiple, which can further improve the lifting efficiency of the goods.

[0065] Further, the lifting machine 400 can also include a circular driving mechanism, which includes a circular motor 440 and a sprocket set 450. The circular motor 440 is fixed to the frame 420, the circular 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 can include an upper sprocket 452 and a lower sprocket 454, and the upper sprocket 452 and the lower sprocket 454 are rotatably mounted on the frame 420. The transmission chain 430 is tightly arranged between the upper sprocket 452 and the lower sprocket 454 and engaged with the upper sprocket 452 and the lower sprocket 454. The circular motor 440 is 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 one to rotate through the transmission chain 430.

[0067] In some embodiments, each lifting part 410 has a plurality of spaced-apart loading forks 411. The plurality of loading forks 411 can be horizontally arranged to form a loading surface for loading the goods. The lifting part 410 further comprises a mounting frame 412, and the plurality of loading forks 411 are fixed to the mounting frame 412 and the mounting frame 412 is fixed to the frame 420.

[0068] The downloading platform 310 has a plurality of spaced-apart downloading barrels 312. The plurality of downloading barrels 312 can be horizontally arranged to form a loading surface for loading the goods. In the running track of the lifting part 410, the plurality of loading forks 411 are arranged in a staggered manner with the plurality of downloading barrels 312, and when the lifting part 410 passes through the downloading platform 310, the plurality of loading forks 411 pass through the gaps between the plurality of downloading barrels 312.

[0069] The uploading platform 210 has a plurality of spaced-apart uploading barrels 212, and in the running track of the lifting part 410, the plurality of loading forks 411 are arranged in a staggered manner with the plurality of uploading barrels 212, and when the lifting part 410 passes through the uploading platform 210, the plurality of loading forks 411 pass through the gaps between the plurality of uploading barrels 212.

[0070] In a lifting process of the goods, after the lifting part 410 turns at the lowest point, the lifting part 410 moves upward to pass through the downloading platform 310 from bottom to top, and the plurality of loading forks 411 of the lifting part 410 pass through the plurality of downloading barrels 312 of the downloading platform 310 to take the goods on the plurality of downloading barrels 312 upward. After the lifting part 410 turns at the highest point, the lifting part 410 moves downward to pass through the uploading barrels 212 from top to bottom, and the plurality of loading forks 411 of the lifting part 410 pass through the plurality of uploading barrels 212 of the uploading platform 210 to leave the goods on the uploading platform 210.

[0071] Further, the downloading platform 310 further has a downloading rack 314, and the plurality of downloading barrels 312 are arranged to rotate around the respective circumferences of the downloading rack 314, so as to transfer the goods from the outside to the downloading platform 310.

[0072] Specifically, the plurality of downloading barrels 312 can be driven to rotate by a driving motor, or can be rotated by the friction force of the goods.

[0073] In the embodiment, the plurality of downloading barrels 312 are arranged to rotate around the respective circumferences, so that the friction force can be reduced in the process of transferring the goods to the downloading platform 310, and the process of transferring the goods is more convenient and efficient.

[0074] Further, the uploading platform 210 further has an uploading rack 214, and the plurality of uploading barrels 214 are arranged to rotate around the respective circumferences of the uploading rack 214, so as to transfer the goods out of the uploading platform 210.

[0075] Similarly, the plurality of upper loading cylinders 212 can be driven to rotate by the driving motor, or can be rotated by the friction of the goods. The plurality of upper loading cylinders 212 are arranged to rotate around the respective circumferences, so that the friction can be reduced during the transfer of the goods to the carrying body 100, and the transfer process is more convenient and efficient.

[0076] In some embodiments, the lifting mechanism can further include a conveyor 500 arranged outside the main frame 200 and opposite to the lower loading platform 310, for conveying the goods to the lower loading platform 310.

[0077] In some specific embodiments, the conveyor 500 can be a telescopic roller machine. The telescopic roller machine has rollers, can be flexibly bent, and is combined in groups, so as to have a wide operation range in the cargo hold, thereby saving the time for position transfer of the unloader and improving the operation efficiency.

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

[0079] During operation, the goods in the cargo hold are manually carried to the telescopic roller machine and transported to the lower loading platform 310 on the telescopic frame 300, and then lifted by the lifting machine 400 to the upper loading platform, and finally transported to the shore by the carrying body 100.

[0080] Further, the lifting machine 400 can be arranged in one set or two sets. When the lifting machine 400 is arranged in one set, the lower loading platform 310, the upper loading platform 210 and the conveyor 500 are arranged in one respectively. When the lifting machine 400 is arranged in two sets, the lower loading platform 310, the upper loading platform 210 and the conveyor 500 are arranged in two respectively, thereby improving the carrying efficiency.

[0081] Further, the lower loading platform 310 further includes a protective plate 316 arranged on the side of the lower loading platform 310 away from the conveyor 500, so as to stop the goods and prevent the goods from falling.

[0082] Further, the lower loading platform 310 can further include a stop plate 317 movably arranged on the side of the lower loading platform 310 close to the conveyor 500. The stop plate 317 has a stopping state and a release state. When in the stopping state, the stop plate 317 protrudes from the upper surface of the lower loading platform 310. When in the release state, the stop plate 317 avoids the upper surface of the lower loading platform 310.

[0083] In the present embodiment, the stop plate 317 controls the goods entering the download platform 310 by switching between the stop state and the release state, so that the subsequent goods can avoid occupying the download platform 310 in the case that the goods on the download platform 310 are not transported out, and prevent multiple goods from blocking the passing path of the lifting part 410, and also prevent multiple goods from being taken away at the same time when they are on the download platform 310, and prevent falling.

[0084] Further, the lifting device is further configured to: drive the stop plate 317 to be in the release state when it is detected that the lifting part 410 is close to the bottom of the download platform 310, or drive the stop plate 317 to be in the stop state when it is not detected that the lifting part 410 is close to the bottom of the download platform 310.

[0085] In this way, when it is detected that the lifting part 410 is close to the bottom of the download platform 310, it can be considered that a lifting part 410 will lift the goods, at which time the stop plate 317 is driven to avoid the upper surface of the download platform 310, allowing the goods to enter the download platform 310, and the goods can be taken away after the lifting part 410 arrives, without causing the goods to be stranded.

[0086] When it is not detected that the lifting part 410 is close to the bottom of the download platform 310, the stop plate 317 is driven to be in the stop state, at which time the stop plate 317 is driven to protrude from the upper surface of the download platform 310, preventing the goods from entering the download platform 310, and avoiding the goods from being stranded in the download platform 310 for a long time.

[0087] In some embodiments, the download platform 310 further includes a stop bracket 318 and a driving push rod 319. The stop bracket 318 is fixed to one side of the download platform 310 close to the conveyor 500. The driving push rod 319 is arranged in the stop bracket 318 and connected with the stop plate 317, and the driving push rod 319 is configured to control the stop plate 317 to switch between the stop state and the release state.

[0088] In some specific embodiments, the driving push rod 319 can be arranged 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 with 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 from the upper surface of the download 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 below the download platform 310 to avoid the upper surface of the download platform 310.

[0090] The application also provides a ship unloader, which can include a carrying body 100, the carrying body 100 can be connected to a main frame 200 in a hinged or fixed manner, and the carrying body 100 is transported to the upper loading platform 210 of the main frame 200 to transport the goods on the upper loading platform 210 to the shore.

[0091] Further, the carrying body 100 can also include a support truss 110 and an intermediate conveyor 120, the support truss 110 is used to support the intermediate conveyor 120, the support truss 110 is hinged to the main frame 200, and the inlet end of the intermediate conveyor 120 is opposite to the upper loading platform 210.

[0092] In some specific embodiments, the support truss 110 can adopt a frame structure, which ensures strength while being light in weight.

[0093] The intermediate conveyor 120 can be a conveying belt machine. When the intermediate conveyor 120 is connected to the main frame 200, the inlet end of the intermediate conveyor 120 is opposite to the upper loading platform 210, and the goods on the upper loading platform 210 are pushed into the intermediate conveyor 120 and then transferred to the shore.

[0094] Further, the ship unloader can also include at least one first telescopic rod 130, the first end of each first telescopic rod 130 is hinged to the main frame 200, and the second end of each first telescopic rod 130 is hinged to the support truss 110.

[0095] In some specific embodiments, the first telescopic rod 130 can be 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, so that the support truss 110 can be pushed up or pulled down by the first telescopic rod 130, that is, the pitch angle of the intermediate conveyor 120 can be adjusted by the extension and contraction of the first telescopic rod 130.

[0096] In some embodiments, the carrying body 100 can also include a tail conveyor 140, the inlet end of the tail conveyor 140 is opposite to the outlet end of the intermediate conveyor 120, and the tail conveyor 140 extends from the inlet end to the outlet end and downward.

[0097] The tail conveyor 140 can also be a conveying belt machine. The inlet end of the tail conveyor 140 is opposite to the outlet end of the intermediate conveyor 120, so that the goods on the intermediate conveyor 120 can be received, and since the tail conveyor 140 extends from the inlet end to the outlet end and downward, the outlet end of the tail conveyor 140 is close to the ground, so that the goods on the tail conveyor 140 can be transported to the vicinity of the ground.

[0098] Further, the carrying body 100 can further comprise a walking frame 150 and at least one second telescopic rod 180. The walking frame 150 is used to support the tail conveyor 140. The first end of each 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.

[0099] The main body of the walking frame 150 can adopt a truss structure made of channel steel, H-shaped steel or the like, which is relatively simple and light. The walking frame 150 further comprises a walking driving mechanism, which can adopt a heavy AGV and has the function of autonomous walking.

[0100] The first end of each 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, so that the support truss 110 can be pushed up or stretched down 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 contraction of the second telescopic rod 180.

[0101] Further, the ship unloader can further comprise an electrically controlled hydraulic unit 170, which can be used to provide hydraulic control for the first telescopic rod 130 and the second telescopic rod 180. The shell of the electrically controlled hydraulic unit 170 adopts a standard container, which can be arranged on the walking frame 150, so as to make the whole more compact on the one hand, and to provide a certain counterweight for the walking frame 150 by the electrically controlled hydraulic unit 170 on the other hand.

[0102] Further, the carrying body 100 can further comprise a counterweight part 160 arranged on the walking frame 150, which is used to balance the carrying body 100, so as to make the overall structure more balanced and ensure the stability during transportation.

[0103] In some embodiments, the lifting machine 400 is provided in two sets, and correspondingly, the upper loading table 210 is provided in two, and the two upper loading tables 210 are arranged side by side. The intermediate conveyor 120 has two sets of intermediate conveying parts 122 arranged side by side, and the two sets of intermediate conveying parts 122 are opposite to the two upper loading tables 210, so that the intermediate conveyor 120 can respectively receive the goods output by the two upper loading tables 210, thereby improving the work efficiency.

[0104] Further, the inlet end of the tail conveyor 140 is opposite to the outlet end of the intermediate conveyor 120, and the tail conveyor 140 has two sets of tail conveying parts 142 arranged side by side, and the two sets of tail conveying parts 142 are opposite to the two intermediate 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 intermediate conveying parts 122 of the intermediate conveyor 120, thereby improving the work efficiency.

[0105] The working principle of the ship unloader of the present application is as follows:

[0106] I. The early configuration process of the ship unloader:

[0107] The carrying body 100, the main frame 200, the telescopic frame 300 and the lifting machine 400 are installed in advance. The carrying body 100 is driven to approach the cargo ship and is parked. The telescopic frame 300 is raised in the main frame 200 to an appropriate position, so that the telescopic frame 300 is above the hatch of the ship, and the lowest end of the telescopic frame 300 is higher than the top of the hatch and a certain safety distance is reserved.

[0108] The telescopic frame 300 is made to pass over the hatch top and enter the inside through the lifting drive mechanism. The telescopic frame 300 is kept in a vertical state with the bottom surface of the hatch. The pressure sensor and the anti-collision block are arranged at the bottom of the telescopic frame 300. When the telescopic frame 300 approaches the bottom of the hatch, it gradually slows down and falls on the bottom surface of the hatch.

[0109] When the telescopic frame 300 falls to the bottom of the hatch, the control clutch 620 releases 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 goods in the hatch are continuously transported out, the hatch causes 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 does not affect the main frame 200, and thus does 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 falls to the bottom of the hatch, the telescopic frame 300 is connected with the transport machine 500 through the fastener, and the outlet of the transport machine 500 is opposite to the downloading table 310 on the telescopic frame 300.

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

[0112] The transport machine 500, the surrounding drive mechanism of the lifting machine 400, the intermediate conveyor 120 and the tail conveyor 140 are started.

[0113] The goods in the hatch are manually carried to the transport machine. When it is detected that the lifting part 410 approaches below the downloading table 310, the stop plate 317 is driven to be in a release state, and the goods enter the downloading table 310.

[0114] When the lifting part 410 passes through the downloading table 310 from bottom to top, the plurality of cargo forks 411 of the lifting part 410 pass through the plurality of downloading cylinders 312 of the downloading table 310, so as to take the goods on the plurality of downloading cylinders 312 upwards.

[0115] After the lift 410 turns at the highest point to move downward, the lift 410 passes through the plurality of upper loading tubes 212 of the upper loading table 210 from top to bottom, leaving the goods on the upper loading table 210.

[0116] The goods are transported outwardly by the rolling of the plurality of upper loading tubes 212 of the upper loading table 210 to the intermediate conveyor 120, which transports the goods to the tail conveyor 140, and finally the goods fall to the ground near the exit end of the tail conveyor 140.

[0117] It should be noted that "one embodiment," "an embodiment," "certain embodiments," certain implementations," etc., as described in the specification can include a particular feature, structure, or characteristic, but every embodiment can not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, where a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of those skilled in the art to effect such feature, structure, or characteristic in connection with an alternative embodiment.

[0118] In general, terminology can be understood at least in part from usage in context. For example, terms, "and", "or", or "and / or," as used herein, can be understood as having the same meaning as "one or more" when applied to any feature, structure, or characteristic in any associated claims. Similarly, it is also possible to interpret terms "at least one" as "one or more."

[0119] It will be readily understood that the terms "on", "above", and "on top of", as used herein, should be interpreted in the broadest context to mean not only "directly on something" but also "on something with intervening feature(s) or layer(s) therebetween", and that "above" or "on top of" should be interpreted to mean not only "above or on top of something" but also "above or on top of something with no intervening feature(s) or layer(s) therebetween" (i.e., directly on something).

[0120] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0121] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions 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) is connected to the carrier body (100), and the main frame (200) is provided with an upper loading platform (210); a telescopic frame (300) for standing in the cabin, the telescopic frame (300) being connected to the main frame (200) so as to be movable along the axial direction of the main frame (200), and the telescopic frame (300) being 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 portion (410), the elevators (400) being configured to drive at least one of the lifting portions (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 action 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), 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).

3. The lifting mechanism according to claim 2, wherein: The transmission member (610) includes a gear (612) and a rack (614). The gear (612) is mounted on the lifting motor (600). The rack (614) 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 includes: 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 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 hoist (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 in an upward and downward 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 hoist (400) further comprises: A surround drive mechanism comprises a surround motor (440) and a sprocket group (450), wherein the surround motor (440) is fixed to the frame (420), the surround motor (440) is connected to the sprocket group (450), and the transmission chain (430) is 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 lower loading platform (310) has a plurality of spaced-apart loading barrels (312); on the running track of the lifting portion (410), the plurality of loading forks (411) and the plurality of loading barrels (312) are staggered; when the lifting portion (410) passes through the lower loading platform (310), the plurality of loading forks (411) pass through the gaps between the plurality of loading 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 staggered. 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) further comprises 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 lower loading platform (310) to transfer the cargo in the cabin to the lower loading platform (310).

11. The lifting mechanism according to claim 10, wherein: The download platform (310) further comprises: A protective plate (316) is provided 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 comprises: A 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 comprises: a stop bracket (318), the stop bracket (318) being fixed to a side of the lower loading platform (310) close to the transporter (500); A driving push rod (319) is provided on the stop bracket (318) and is connected to the stop plate (317). 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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