Loading and unloading dual-purpose machine for intelligent port

Abstract

The invention relates to the technical field of port heavy machinery, in particular to an intelligent port loading and unloading dual-purpose machine which comprises a portal, a walking mechanism is arranged at the bottom of the portal, a tower is rotatably arranged at the top of the portal through a rotary table, a holder is arranged on one side of the tower, and a conveying arm is slidably arranged in the holder in the length direction of the holder. A belt conveyor is arranged in the conveying arm, and a gap is formed between the end, away from the tower, of the belt conveyor and the tail end of the conveying arm. The belt conveyor can rotate forwards and backwards so as to adapt to ship loading and unloading tasks, meanwhile, the grab bucket mechanism can grab goods to the belt conveyor, the grab bucket mechanism can also collect the goods falling from the belt conveyor, and therefore ship loading and unloading operation can be conducted through the ship loading and unloading system, and the ship loading and unloading efficiency is improved. The operation efficiency of the port is greatly improved, and the congestion condition of the port is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of port heavy machinery, and particularly to a loading and unloading dual-purpose machine for an intelligent port. Background Art

[0002] An intelligent port is the trend and direction of port construction and development. It takes the cyber-physical system as the framework, and through the innovative application of high technologies, greatly improves the port's comprehensive information processing ability and the optimal allocation ability of relevant resources. In the field of modern port logistics, the efficient loading and unloading of goods is a key link to ensure the port operation efficiency and economic benefits.

[0003] Currently, ship loaders and ship unloaders are generally used as the main equipment for cargo loading and unloading in ports. However, these two types of equipment are usually two independent systems. Since the ship loader and the ship unloader operate independently, their installation and deployment require a large amount of port space resources. In the current situation where port land resources are tight, this space occupation undoubtedly exacerbates the congestion in the port operation area. In addition, during the actual operation process, when the cargo loading and unloading task switches between loading and unloading, the operator needs to perform operations such as debugging, starting, and stopping on the two sets of equipment respectively, which not only increases the complexity of the operation process, but also prolongs the cargo turnover time and reduces the overall operation efficiency of the port.

[0004] On the other hand, from the perspective of economic cost, purchasing, installing, and maintaining these two sets of independent equipment, namely the ship loader and the ship unloader, requires a large amount of capital investment. The repeated configuration of equipment not only increases the initial procurement cost, but also significantly increases the costs in aspects such as subsequent maintenance, personnel training, etc. This is undoubtedly a heavy economic burden for port operation enterprises. Therefore, researching and developing a loading and unloading equipment that can integrate the functions of loading and unloading ships to solve the problems existing in the existing equipment, such as low space utilization rate, cumbersome operation, high cost, etc., has become an urgent problem to be solved in the current process of intelligent port construction. Summary of the Invention

[0005] The purpose of the present invention is to provide a loading and unloading dual-purpose machine for an intelligent port to solve the problems raised in the above background art.

[0006] The present invention is achieved through the following technical solutions: A loading and unloading dual-purpose machine for an intelligent port includes a gantry. A traveling mechanism is provided at the bottom of the gantry. A tower is rotatably provided at the top of the gantry through a slewing platform. A retaining frame is provided on one side of the tower. A conveying arm is slidably provided inside the retaining frame along its own length direction. A belt conveyor is provided inside the conveying arm. There is a gap between the end of the belt conveyor far from the tower and the end of the conveying arm. A receiving hopper is provided at the bottom of the conveying arm and below the end of the belt conveyor far from the tower. A discharge pipe is provided at the bottom of the receiving hopper, and a switching valve is provided on the discharge pipe;

[0007] A feeding rack is slidably arranged on the conveying arm. The feeding rack can slide along the length direction of the conveying arm. A traction mechanism is arranged on the top of the feeding rack. The traction mechanism is connected with a grab mechanism through a steel wire rope.

[0008] The grab mechanism includes a grab body and a material receiving bin. The material receiving bin is located on the top of the grab body. When the grab body is closed, the internal spaces of the material receiving bin and the grab body are communicated.

[0009] Optionally, the grab body includes a top frame and a movable frame located below the top frame. A plurality of hinge seats are evenly spaced on the outer peripheral wall of the top frame. Hollow tubes are hinged on the plurality of hinge seats. The bottom end of the hollow tube is hinged with a grab blade. One end of the grab blade is hinged with the side wall of the movable frame; A telescopic oil cylinder is connected between the top frame and the movable frame. When the top frame and the movable frame approach each other, a plurality of grab blades are closed with each other; When the top frame and the movable frame move away from each other, a plurality of grab blades are unfolded with each other.

[0010] Optionally, the material receiving bin is in a funnel shape. The material receiving bin is fixedly connected with the top surface of the top frame. Discharge pipes corresponding to the hollow tubes one by one are arranged at the bottom of the material receiving bin. The bottom end of the discharge pipe is connected with the hollow tube through a hose. The hollow tube is a structure with both ends penetrating.

[0011] Optionally, the grab blade includes an arc-shaped steel sheet and a reinforcing rib arranged on the back of the arc-shaped steel sheet. A material leakage opening is penetrated through the reinforcing rib. The bottom end of the hollow tube extends into the material leakage opening and is rotationally connected with the reinforcing rib through a rotating shaft;

[0012] When the grab body is closed, a plurality of the arc-shaped steel sheets jointly enclose a conical structure with an upper opening. The material leakage opening is located above the opening of the conical structure.

[0013] Optionally, the traction mechanism includes two electric hoists. Lifting lugs are arranged on the opposite sides of the top surface of the top frame. The output ends of the two electric hoists are respectively connected with the two lifting lugs through steel wire ropes; A protective cover is also arranged on the top surface of the feeding rack and outside the two electric hoists.

[0014] Optionally, slide rails are arranged on both outer sides of the conveying arm. Sliding parts are arranged on the opposite sides of the feeding rack. The two sliding parts are respectively in sliding fit with the two slide rails.

[0015] Optionally, a driven rack is fixedly embedded on the surface of the slide rail, a control box is arranged on the outer surface of the sliding part, a driving motor is arranged on the top surface of the control box, a driving gear is arranged inside the control box, the driving gear is coaxially connected to the output shaft of the driving motor, a strip-shaped opening for the driving gear to pass through is formed through the sliding part, and one side of the driving gear passes through the strip-shaped opening and meshes with the driven rack.

[0016] Optionally, a leakage hopper is further arranged on the top surface of the conveying arm and above the belt conveyor, and the inside of the leakage hopper is in a tapered shape with a wider top and a narrower bottom.

[0017] Optionally, the bottom of the discharge pipe is inclined towards the end side of the conveying arm. When the receiving bin moves directly below the bottom of the discharge pipe, the bottom of the discharge pipe is located between the two steel wire ropes.

[0018] Optionally, the distance between the end of the belt conveyor and the conveying arm is greater than the width of the grab mechanism, and the sum of the heights of the grab mechanism and the leakage hopper is less than the height difference between the top wall of the feeding rack and the conveying arm.

[0019] Compared with the prior art, the present invention provides a loading and unloading dual-purpose machine for a smart port, having the following

[0020] Beneficial effects:

[0021] 1. The belt conveyor in the present invention can rotate forward and backward to adapt to the tasks of loading and unloading ships. At the same time, the grab mechanism can grab goods onto the belt conveyor, and the grab mechanism can also collect the goods falling from the belt conveyor. Therefore, the present invention can perform loading and unloading operations separately, greatly improving the port operation efficiency and reducing the port congestion situation;

[0022] 2. The grab mechanism in the present invention has a receiving bin. When materials enter the inside of the receiving bin, they can enter the grab through the discharge pipe and the hollow pipe. Therefore, the present invention can achieve precise discharging through the grab;

[0023] 3. The present invention also has a leakage hopper and a receiving hopper. The leakage hopper can collect the materials released from the grab to prevent the materials from spilling to the outside. The receiving hopper can collect the materials falling from the belt conveyor and also helps to prevent the materials from spilling to the outside. Therefore, the leakage hopper and the receiving hopper in the present invention can assist the grab mechanism in loading and unloading ships and avoid external pollution caused by material spillage. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the present invention in the ship unloading state;

[0026] Figure 3 Schematic diagram of the structure of the present invention in the ship-loading state;

[0027] Figure 4 Schematic diagram of the structure of the feeding rack of the present invention;

[0028] Figure 5 Schematic diagram of the grab mechanism of the present invention;

[0029] Figure 6 Partial schematic diagram of the belt conveyor of the present invention;

[0030] Figure 7 Schematic diagram of the structure of the hollow tube of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the material leakage hopper of the present invention;

[0032] Figure 9 Schematic diagram of the structure of the material receiving hopper of the present invention;

[0033] Figure 10 is Figure 7 The enlarged corresponding diagram at position A in

[0034] In the figure: 100, gantry; 101, traveling mechanism; 102, slewing platform; 103, tower; 104, cage; 200, conveying arm; 201, belt conveyor; 202, slide rail; 203, driven rack; 204, material leakage hopper; 300, material receiving hopper; 301, discharge pipe; 400, feeding rack; 401, sliding part; 402, control box; 403, driving motor; 404, driving gear; 500, traction mechanism; 501, steel wire rope; 502, protective cover; 600, grab mechanism; 601, grab body; 6011, top frame; 6012, movable frame; 6013, hinge seat; 6014, hollow tube; 6015, grab blade; 60151, arc steel sheet; 60152, reinforcing rib; 60153, material leakage opening; 6016, telescopic oil cylinder; 6017, rotating shaft; 602, material receiving bin; 603, discharge pipe; 604, hose; 605, lifting lug. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figure 1 - Figure 10, A loading and unloading machine for a smart port, comprising a gantry 100. A traveling mechanism 101 is provided at the bottom of the gantry 100. A tower 103 is rotatably arranged at the top of the gantry 100 through a rotary table 102. A retaining frame 104 is provided on one side of the tower 103. A conveying arm 200 is slidably arranged inside the retaining frame 104 along its own length direction; The retaining frame 104 is a rectangular frame welded by steel pipes. The front and rear ends of the retaining frame 104 are penetrated, and the other four sides are hollowed out. The retaining frame 104 is fixedly connected to the tower 103, and the retaining frame 104 is slidably connected to the conveying arm 200; A driving device for driving the conveying arm 200 to slide back and forth is also provided on the retaining frame 104. A belt conveyor 201 is arranged inside the conveying arm 200. There is a gap between one end of the belt conveyor 201 far from the tower 103 and the end of the conveying arm 200. There is also a gap between one end of the belt conveyor 201 close to the tower 103 and the starting end of the conveying arm 200. That is, the conveying arm 200 is in the shape of a rectangular frame, and there are gaps between both ends of the belt conveyor 201 and the corresponding ends of the conveying arm 200. And the belt conveyor 201 can rotate forward and backward.

[0037] It should be noted that when the loading and unloading machine specifically performs the ship loading operation, it also needs to be used together with a feeding conveyor belt. The feeding conveyor belt is arranged obliquely, with its starting end close to the ground for convenient feeding, and its end extending above the conveying arm 200 to convey materials onto the belt conveyor 201. In addition, when the loading and unloading machine performs the ship unloading operation, it needs to be used together with a discharging hopper. The discharging hopper is located below one end of the conveying arm 200 close to the tower 103 to collect the materials falling from the belt conveyor 201. The feeding conveyor belt and the discharging hopper are both existing equipment, so they will not be elaborated in this application.

[0038] Furthermore, a receiving hopper 300 is provided at the bottom of the conveying arm 200 and below one end of the belt conveyor 201 far from the tower 103. A discharge pipe 301 is provided at the bottom of the receiving hopper 300, and a switch valve is provided on the discharge pipe 301; The top of the receiving hopper 300 is open, and the top of the receiving hopper 300 is fixedly connected to the conveying arm 200 by bolts. The switch valve adopts an electric gate valve to control the opening and closing of the discharge pipe 301. When the belt conveyor 201 rotates forward (that is, the upper surface of the belt conveyor 201 moves from the side close to the tower 103 to the side far from the tower 103), the materials on the belt conveyor 201 can smoothly fall into the receiving hopper 300.

[0039] In some embodiments of the present application, a feeding rack 400 is slidably provided on the conveying arm 200. The feeding rack 400 can slide along the length direction of the conveying arm 200. A traction mechanism 500 is provided on the top of the feeding rack 400. The traction mechanism 500 is connected to a grab mechanism 600 through a steel wire rope 501. Among them, the feeding rack 400 is a rectangular parallelepiped rack welded by steel pipes. Slide rails 202 are provided on both outer sides of the conveying arm 200. Sliding parts 401 are provided on both opposite sides of the feeding rack 400. The two sliding parts 401 are respectively in sliding cooperation with the two slide rails 202.

[0040] A driven rack 203 is fixedly embedded on the surface of the slide rail 202. A control box 402 is provided on the outer surface of the sliding part 401. A driving motor 403 is provided on the top surface of the control box 402. A driving gear 404 is provided inside the control box 402. The driving gear 404 is coaxially connected to the output shaft of the driving motor 403. A strip-shaped opening for the driving gear 404 to pass through is formed through the sliding part 401. One side of the driving gear 404 passes through the strip-shaped opening and meshes with the driven rack 203. Therefore, the feeding rack 400 can be indirectly controlled to slide along the length direction of the conveying arm 200 through the driving motor 403.

[0041] Specifically, the grab mechanism 600 includes a grab body 601 and a receiving bin 602. The receiving bin 602 is located on the top of the grab body 601. When the grab body 601 is closed, the internal spaces of the receiving bin 602 and the grab body 601 are communicated. The grab body 601 includes a top frame 6011 and a movable frame 6012 located below the top frame 6011. A plurality of hinge seats 6013 are evenly spaced on the outer peripheral wall of the top frame 6011. Hollow tubes 6014 are hinged on the plurality of hinge seats 6013. A grab blade 6015 is hinged at the bottom end of the hollow tube 6014. One end of the grab blade 6015 is hinged to the side wall of the movable frame 6012. A telescopic oil cylinder 6016 is connected between the top frame 6011 and the movable frame 6012. When the top frame 6011 and the movable frame 6012 approach each other, the plurality of grab blades 6015 are closed to each other. When the top frame 6011 and the movable frame 6012 move away from each other, the plurality of grab blades 6015 are unfolded. In this embodiment, the top frame 6011 is a regular pentagon, and there are also five hinge seats 6013. The hollow tube 6014 is a steel pipe structure with both ends penetrating.

[0042] The receiving bin 602 is in a funnel shape. The receiving bin 602 is fixedly connected to the top surface of the top frame 6011. Discharge pipes 603 corresponding to the hollow tubes 6014 one by one are provided at the bottom of the receiving bin 602. The bottom end of the discharge pipe 603 is connected to the hollow tube 6014 through a flexible hose 604. Among them, the receiving bin 602 is fixed to the top frame 6011 by welding. One end of the discharge pipe 603 is fixedly welded to the receiving bin 602, and the other end is connected to the top end of the hollow tube 6014 through a flexible hose 604 made of rubber.

[0043] The grab blade 6015 includes an arc-shaped steel sheet 60151 and a reinforcing rib 60152 welded and fixed to the back surface of the arc-shaped steel sheet 60151. A material leakage opening 60153 is formed through the reinforcing rib 60152. The bottom end of the hollow tube 6014 extends into the material leakage opening 60153 and is rotatably connected to the reinforcing rib 60152 through a rotating shaft 6017. When the grab body 601 is closed, a plurality of arc-shaped steel sheets 60151 together enclose a conical structure with an upper opening, and the material leakage opening 60153 is located above the opening of the conical structure. The arc-shaped steel sheet 60151 is made of a steel plate with a thickness of 16 mm, and its bottom end is sharp. When the grab mechanism 600 is closed, the sides of a plurality of arc-shaped steel sheets 60151 are in contact with each other, and the bottom end is closed. When the material enters the inside of the receiving bin 602, the material can sequentially pass through the discharge pipe 603, the flexible pipe 604, the hollow tube 6014, and the material leakage opening 60153 and enter the conical structure, so as to load the material into the conical structure.

[0044] In addition, the traction mechanism 500 includes two electric hoists (not shown in the figure). Lifting lugs 605 are provided on both opposite sides of the top surface of the top frame 6011. The output ends of the two electric hoists are respectively connected to the two lifting lugs 605 through steel wire ropes 501. A protective cover 502 is further provided on the top surface of the feeding frame 400 and outside the two electric hoists. The two electric hoists always start and stop synchronously to control the synchronous elongation or contraction of the two steel wire ropes 501, so that the grab mechanism 600 can maintain relative balance. And, in this application, the maximum traction weight of the electric hoist is 25 tons, and the sum of the maximum traction weights of the two electric hoists is 50 tons, ensuring that the sum of the weights of the grab mechanism 600 and the material is always within the maximum traction range of the electric hoist.

[0045] It is worth mentioning that a material leakage hopper 204 is further provided on the top surface of the conveying arm 200 and above the belt conveyor 201. The inside of the material leakage hopper 204 is in a conical shape with a wider upper part and a narrower lower part. When the material falls into the inside of the material leakage hopper 204 from top to bottom, the material can finally successfully fall on the belt conveyor 201, and the function is to prevent the material from being scattered outside. And, the upper surface of the belt conveyor 201 is in a posture with higher ends and lower middle, as Figure 6 shown, and the outer surface of the belt conveyor 201 is uniformly provided with anti-slip strips.

[0046] In addition, the bottom of the discharge pipe 301 is inclined towards the end side of the conveying arm 200. When the receiving bin 602 moves to directly below the bottom of the discharge pipe 301, the bottom of the discharge pipe 301 is located between the two wire ropes 501. The end-to-end spacing between the belt conveyor 201 and the conveying arm 200 is greater than the width of the grab mechanism 600, and the sum of the heights of the grab mechanism 600 and the leakage hopper 204 is less than the height difference between the top wall of the feeding frame 400 and the conveying arm 200. That is, the grab mechanism 600 can smoothly pass through the gap between the belt conveyor 201 and the conveying arm 200, and the grab mechanism 600 can also enter above the leakage hopper 204.

[0047] In summary, during the actual application of this embodiment, when ship unloading operation is required, the belt conveyor 201 rotates in reverse, that is, the material falling on the upper surface of the belt conveyor 201 can move towards the side close to the tower 103. At this time, the traction mechanism 500 is used to control the height of the grab mechanism 600, and the grab mechanism 600 can perform a grabbing action through the telescopic cylinder 6016 to grab the material in the ship's hold. Then the traction mechanism 500 controls the grab mechanism 600 to rise and pass through the gap at the front end of the belt conveyor 201. Subsequently, the drive motor 403 operates to control the translation of the feeding frame 400, so that the grab mechanism 600 moves above the leakage hopper 204. Finally, the grab mechanism 600 releases the material, and the material falls onto the belt conveyor 201 through the leakage hopper 204.

[0048] When this embodiment performs ship loading operation, the belt conveyor 201 rotates forward. At this time, the material falls into the receiving hopper 300 through the belt conveyor 201. In the initial state, the receiving bin 602 at the top of the grab mechanism 600 is located directly below the discharge pipe 301, and the grab mechanism 600 is in a closed state. At this time, when the switching valve is opened, the material can enter the receiving bin 602 through the discharge pipe 301, and then enter the grab through the discharge pipe 603 and the hollow pipe 6014. When the grab is filled with material, the switching valve is temporarily closed, and then the traction mechanism 500 releases the grab mechanism 600 downward. After the grab mechanism 600 drops to an appropriate position, the grab mechanism 600 releases the material. After completion, the grab mechanism 600 returns to the initial position, and the switching valve is opened again, and so on.

[0049] It is worth mentioning that, in order to avoid blockage of the discharge pipe 603 and the hollow pipe 6014, the ship loading operation of this embodiment is only suitable for sand because the sand has a small particle diameter and is not easily blocked. When performing the ship loading operation, generally, the time for the sand to fill the grab bucket is usually 15 to 20 seconds. Therefore, the opening time of the switching valve is also controlled between 15 and 20 seconds to prevent excess sand from leaking out from the top of the receiving bin 602. In addition, when the receiving hopper 300 is about to be filled, the staff needs to close or slow down the running speed of the belt conveyor 201 to prevent the material from overflowing from the top of the receiving hopper 300. The inner wall of the top of the receiving hopper 300 can be equipped with a camera mechanism to assist the staff in judging whether the receiving hopper 300 is full.

[0050] In addition, since the front and rear strokes of the grab mechanism 600 in this application are small, the structure of the cage 104 is designed, and the conveying arm 200 is slidably arranged inside the cage 104. Therefore, when it is necessary to adjust the front and rear distances of the grab mechanism 600 over a large range, the conveying arm 200 can be controlled to slide back and forth by the driving device on the cage 104.

[0051] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A loading and unloading machine for a smart port, comprising a gantry, a walking mechanism is provided at the bottom of the gantry, a tower is provided on the top of the gantry through a rotating table, a retaining frame is provided on one side of the tower, a conveying arm is provided inside the retaining frame for sliding along its own length direction, a belt conveyor is provided inside the conveying arm, and the characteristics are: There is a gap between the end of the belt conveyor away from the tower and the end of the conveying arm, and a receiving hopper is provided at the bottom of the conveying arm and below the end of the belt conveyor away from the tower, and a discharge pipe is provided at the bottom of the receiving hopper, and a switch valve is provided on the discharge pipe; A feeding rack is slidably provided on the conveying arm, and the feeding rack can slide along the length direction of the conveying arm. A traction mechanism is provided on the top of the feeding rack, and the traction mechanism is connected to a grab bucket mechanism through a steel wire rope; The grab bucket mechanism comprises a grab bucket body and a material receiving bin, wherein the material receiving bin is located at the top of the grab bucket body, and when the grab bucket body is closed, the internal space of the material receiving bin and the grab bucket body are communicated.

2. The dual-purpose loading and unloading machine for a smart port according to claim 1, characterized in that: The grab bucket body comprises a top frame and a movable frame located below the top frame, a plurality of hinge seats are evenly spaced on the outer peripheral wall of the top frame, a hollow tube is hingedly provided on each of the hinge seats, a grab bucket piece is hingedly provided at the bottom end of the hollow tube, and one end of the grab bucket piece is hingedly provided with a side wall of the movable frame; A telescopic oil cylinder is connected between the top frame and the movable frame. When the top frame and the movable frame are close to each other, the plurality of grabbing pieces are closed to each other; when the top frame and the movable frame are far away from each other, the plurality of grabbing pieces are opened to each other.

3. The dual-purpose loading and unloading machine for a smart port according to claim 2 is characterized in that: The receiving bin is funnel-shaped and fixedly connected to the top surface of the top frame. A discharge pipe corresponding to the hollow tube is provided at the bottom of the receiving bin. The bottom end of the discharge pipe is connected to the hollow tube through a hose. The hollow tube is a through structure at both ends.

4. The dual-purpose loading and unloading machine for a smart port according to claim 3 is characterized in that: The grab piece includes an arc-shaped steel sheet and a reinforcing rib arranged on the back of the arc-shaped steel sheet, the reinforcing rib is penetrated with a material leakage opening, the bottom end of the hollow tube extends into the material leakage opening and is rotatably connected to the reinforcing rib through a rotating shaft; When the grab bucket body is closed, a plurality of the arc-shaped steel sheets together form a conical structure with an open upper end, and the material leakage port is located above the opening of the conical structure.

5. The dual-purpose loading and unloading machine for a smart port according to claim 2, characterized in that: The traction mechanism includes two electric hoists, and lifting ears are provided on opposite sides of the top surface of the top frame. The output ends of the two electric hoists are respectively connected to the two lifting ears through steel wire ropes; a protective cover is also provided on the top surface of the feeding frame and located outside the two electric hoists.

6. The dual-purpose loading and unloading machine for a smart port according to claim 1, characterized in that: Slide rails are arranged on both sides of the outside of the conveying arm, and sliding parts are arranged on both opposite sides of the feeding rack. The two sliding parts are respectively slidably matched with the two slide rails.

7. The dual-purpose loading and unloading machine for a smart port according to claim 6, characterized in that: A driven rack is embedded on the surface of the slide rail, a control box is provided on the outer surface of the sliding part, a drive motor is provided on the top surface of the control box, a drive gear is provided inside the control box, the drive gear is coaxially connected to the output shaft of the drive motor, a strip-shaped opening is penetrated through the sliding part for the drive gear to pass through, one side of the drive gear passes through the strip-shaped opening and meshes with the driven rack.

8. The dual-purpose loading and unloading machine for a smart port according to claim 1, characterized in that: A hopper is also provided on the top surface of the conveying arm and above the belt conveyor. The interior of the hopper is in a cone shape that is wide at the top and narrow at the bottom.

9. The dual-purpose loading and unloading machine for a smart port according to claim 5, characterized in that: The bottom of the discharge pipe is tilted toward one side of the end of the conveying arm. When the receiving bin moves to just below the bottom end of the discharge pipe, the bottom of the discharge pipe is located between the two steel ropes.

10. The dual-purpose loading and unloading machine for a smart port according to claim 8, characterized in that: The distance between the ends of the belt conveyor and the conveying arm is greater than the width of the grab bucket mechanism, and the sum of the heights of the grab bucket mechanism and the hopper is less than the height difference between the top wall of the feeding rack and the conveying arm.

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