Double-deck container transport device and container loading and unloading method thereof

Abstract

The application discloses a double-layer container transportation equipment and a loading and unloading method. A lifting guide mechanism composed of a lifting mechanism and a guide mechanism is installed at each end of a vehicle frame body. The guide mechanism comprises four right-angle guide groove mechanisms arranged at four corner positions of the container. The position between the two lifting guide mechanisms of the vehicle frame body constitutes a single-layer box position. The top of the two lifting mechanisms constitutes a double-layer box position when the lifting mechanism is lifted. A fixed pull rod is fixed on the four right-angle guide groove mechanisms in a rectangular structure. A telescopic pull rod is fixed at one end of the lifting mechanism or the right-angle guide groove mechanism and at one end of the side of the vehicle frame body. The fixed pull rod and / or the telescopic mechanism form a supporting force from the side of the container, thereby realizing double-container transportation while guaranteeing the transportation safety performance of the container and significantly improving the loading and unloading efficiency of the wharf.

Description

Technical Field

[0001] This invention belongs to the field of container terminal technology, specifically, it relates to a double-stack container transport equipment and its container loading and unloading method. Background Technology

[0002] Container terminals are the hubs for realizing sea and land logistics transportation. With the increasing size of ships, the loading and unloading efficiency of ports needs to be continuously improved.

[0003] During unloading, quay cranes place containers onto horizontal transport equipment such as container trucks, AGVs, IGVs, and unmanned trailers. The horizontal transport equipment then moves the containers to the yard, where the yard cranes transfer them from the horizontal transport equipment to the yard. During loading, the yard cranes place containers onto horizontal transport equipment, which then moves them from the yard to the quay cranes, which load them onto the ship.

[0004] Currently, horizontal transport equipment can only transport one 40-foot or 45-foot container or two 20-foot containers at a time. When ships are docked at the pier for loading and unloading operations, the number of horizontal transport equipment allocated to each ship affects the loading and unloading efficiency. Summary of the Invention

[0005] This invention proposes a double-stack container transport equipment and its container loading and unloading method, which increases the transport capacity of horizontal transport equipment without increasing the proportion of horizontal transport equipment on ships, thus significantly improving the loading and unloading efficiency of the terminal.

[0006] The present invention is implemented using the following technical solutions:

[0007] A double-stack container transport equipment is proposed, comprising:

[0008] The main body of the frame;

[0009] Two lifting and guiding mechanisms are respectively located at both ends of the vehicle frame body, each consisting of a lifting mechanism and a fixing mechanism.

[0010] The lifting mechanism is composed of a guide mechanism at the top; wherein the guide mechanism is composed of four right-angle guide groove mechanisms; the position of the main body of the frame between the two lifting guide mechanisms constitutes a single-layer box position; when the lifting mechanism is in the lifting state, the top of the two lifting mechanisms constitutes a double-layer box position.

[0011] The four right-angle guide channels are respectively located on the upper part of the lifting mechanism of the two lifting guide mechanisms at the positions corresponding to the four corners of the container. The lifting mechanism guides and fixes the single / double-layer container during loading and unloading.

[0012] The guide slot force-splitting pull rod comprises a fixed pull rod and / or a telescopic pull rod; wherein the fixed pull rod forms a rectangle and is fixed on a four-part right-angle guide slot mechanism; one end of the telescopic pull rod is fixed on a lifting mechanism or a right-angle guide slot mechanism, and the other end is fixed on the side of the vehicle frame body.

[0013] Further, when the guide slot force-splitting pull rod comprises a fixed pull rod and a telescopic pull rod, one end of the telescopic pull rod is fixed on the lifting mechanism; when the lifting mechanism is lifted, the fixed pull rod provides lateral support force for the upper-layer container, and the telescopic pull rod provides lateral support force for the lower-layer container by stretching.

[0014] Further, when the guide slot force-splitting pull rod comprises only a telescopic pull rod, one end of the telescopic pull rod is fixed on the right-angle guide slot mechanism; when the lifting mechanism is lifted, the telescopic pull rod provides lateral support force for the upper-layer and lower-layer containers by stretching.

[0015] Further, the right-angle guide slot mechanism is provided with a horn structure for guiding the container at the top.

[0016] Further, the telescopic pull rod comprises a first telescopic slot, a second telescopic slot, and a force-bearing pull rod connected between the first telescopic slot and the second telescopic slot; one end of the first / second telescopic slot is provided with a through hole, and the middle is provided with a hollow structure; the force-bearing pull rod is respectively inserted into the first / second telescopic slot through the through hole at both ends; the force-bearing pull rod is prevented from falling out of the first / second telescopic slot by the stop block at both ends.

[0017] Further, the device further comprises a fixed guide plate fixed on the side of the vehicle frame body.

[0018] Further, a position sensor is installed on the right-angle guide slot mechanism to confirm the placement position of each layer of containers and the lifting position of the lifting guide mechanism.

[0019] A container loading and unloading method of a double-layer container transport device is proposed, which is applied to the double-layer container transport device as described above, and comprises the following steps.

[0020] Container loading:

[0021] S11, it is judged whether the lifting guide mechanism is in the initial position; if it is in the initial position, the container is placed in the single-layer container position of the vehicle frame body based on the guidance of the guide mechanism; if it is not in the initial position, the lifting mechanism is controlled to descend to the initial position; the initial position is the position of the lifting guide mechanism when the lifting mechanism is in the non-lifting state;

[0022] S12, when the lower-layer container is loaded in place based on the detection signal of the position sensor, the lifting mechanism is controlled to lift;

[0023] S13, after the lifting mechanism is lifted to the position, the container is placed to the double-layer box position based on the guide of the guide mechanism;

[0024] S14, when the upper-layer container is loaded to the position based on the detection signal of the position sensor, a permission instruction allowing the equipment to move is generated;

[0025] Unloading the container:

[0026] S21, the upper-layer container is unloaded;

[0027] S22, after the upper-layer container is unloaded based on the detection signal of the position sensor, the lifting mechanism is controlled to descend;

[0028] S23, when the lifting mechanism descends to the initial position, an instruction allowing the lower-layer container to be unloaded is generated;

[0029] S24, after the lower-layer container is unloaded based on the detection signal of the position sensor, a permission instruction allowing the equipment to move is generated.

[0030] Compared with the prior art, the advantages and positive effects of the double-layer container transport equipment and the container loading and unloading method are as follows: in the double-layer container transport equipment and the container loading and unloading method, one lifting guide mechanism is installed at each end of the frame main body, the lifting guide mechanism is composed of a lifting mechanism and a guide mechanism, the guide mechanism includes four straight guide groove mechanisms arranged at four corner positions of the container; the position between the two lifting guide mechanisms of the frame main body constitutes a single-layer box position, the top of the two lifting mechanisms constitutes a double-layer box position when the lifting mechanism is lifted; the guide groove separate pull rod provides lateral support force for the container, among which, the four straight guide groove mechanisms are fixed with fixed pull rods in a rectangular structure, when the lifting mechanism is not lifted, the fixed pull rods form lateral support force for the lower-layer container loaded in the single-layer box position, when the lifting mechanism is lifted, the fixed pull rods form lateral support force for the upper-layer container loaded in the double-layer box position; one end of the telescopic pull rod is fixed to the lifting mechanism or the straight guide groove mechanism, and the other end is fixed to the side edge of the frame main body; after the lifting mechanism is lifted, based on the stretching of the telescopic mechanism, lateral support force can be formed for the side of the lower-layer container, or lateral support force can be formed for the sides of the upper-layer and lower-layer containers at the same time; based on the above structure, double-container transportation can be realized while the transportation safety performance of the container is ensured, the carrying capacity of the horizontal transport equipment is increased without increasing the ratio of the horizontal transport equipment of the ship, so that the loading and unloading efficiency of the wharf is significantly improved.

[0031] In some embodiments of the application, the fixed pull rod and the telescopic pull rod can be applied at the same time according to actual application requirements, in this case, one end of the telescopic pull rod is fixed to the lifting mechanism, lateral support force is formed for the lower-layer container based on the stretching, the fixed pull rod provides support force for the upper-layer container, and the safety of the container transportation is ensured.

[0032] In some embodiments of the present application, the telescopic pull rod can be used alone, in which one end of the telescopic pull rod is fixed to the right-angle guide groove mechanism, and the telescopic pull rod provides lateral support force to the upper and lower containers based on the stretching ventilation.

[0033] In some embodiments of the present application, the right-angle guide groove mechanism guides the loading of the containers, and after the loading of the containers is completed, the right-angle guide groove mechanism limits and fixes the containers.

[0034] In some embodiments of the present application, the top of the right-angle guide groove mechanism is provided with a horn structure for guiding the containers, which guides the loading angle of the containers and reduces the difficulty of the alignment of the containers.

[0035] In some embodiments of the present application, a position sensor is installed on the right-angle guide groove mechanism to confirm the placement position of each layer of containers and the lifting position of the lifting guide mechanism, and to provide data support for the control of the loading and unloading of the containers of the double-layer container transport device.

[0036] Other features and advantages of the present application will become more apparent after reading the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The main structure of the double-layer container transport device according to the present application is shown in the figure.

[0038] Figure 2 The telescopic pull rod structure of the double-layer container transport device according to the present application is shown in the figure.

[0039] Figure 3 The structure of the lifting guide mechanism of the double-layer container transport device according to the present application is shown in the figure.

[0040] Figure 4 The structure of the single-layer container position of the double-layer container transport device according to the present application is shown in the figure.

[0041] Figure 5 The structure of the double-layer container transport device according to the present application is shown in the figure.

[0042] Figure 6 The structure of the double-layer container transport device according to the present application is shown in the figure.

[0043] Figure 7 The container loading method of the double-layer container transport device according to the present application is shown in the figure.

[0044] Figure 8 The container unloading method of the double-layer container transport device according to the present application is shown in the figure. DETAILED DESCRIPTION

[0045] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0046] As shown in the drawings, Figures 1 to 6 The present application innovates on the basis of the original horizontal transportation equipment frame body 1, and adds lifting guide mechanisms 2 at both ends of the frame body 1 to ensure that the horizontal transportation equipment meets the use requirements of an automated container terminal. Without changing the size of the commonly used horizontal transportation equipment, two independent lifting guide mechanisms 2 are designed at the positions of the container pallets at both ends of the horizontal transportation equipment. The lifting guide mechanism 2 is composed of a lifting mechanism 21 and a guide mechanism. The guide mechanism is fixed to the upper end of the lifting mechanism 21, and the guide mechanism includes four right-angle guide groove mechanisms 22 with trumpet mouths 23. The frame body 1 is located between the two lifting guide mechanisms 2 and constitutes a single-layer box position. In the lifted state of the lifting mechanism 21, the top of the two lifting mechanisms 21 constitutes a double-layer box position. The four right-angle guide groove mechanisms 22 are respectively arranged at the upper part of the lifting mechanism 21 of the two lifting guide mechanisms 2 in positions corresponding to the four corners of the container, and the lifting of the lifting mechanism 21 realizes the guidance and fixation of the single / double-layer box during loading and unloading.

[0047] To ensure that the container can be placed in the single-layer box position and the double-layer box position of the horizontal transportation equipment, and at the same time ensure that the container will not be displaced during the walking process of the horizontal transportation equipment, the present application provides lateral support for the container by designing a guide groove separate pull rod.

[0048] Specifically, the guide groove separate force pull rod provided by the present application includes a fixed pull rod 31 and / or a telescopic pull rod 32. That is, the fixed pull rod 31 and the telescopic pull rod 32 can be applied simultaneously, or the telescopic pull rod 32 can be applied alone, or the fixed pull rod can be applied alone.

[0049] The fixed pull rod 31 is fixed to the side surface of the right-angle guide groove mechanism 22 through a fixed pin 51, and the four fixed pull rods 31 form a rectangle. In the unlifted state of the lifting mechanism 21, the four fixed pull rods 31 can provide lateral support for the lower-layer container, and in the lifted state of the lifting mechanism 21, the four fixed pull rods 31 can provide lateral support for the upper-layer container. The fixed pull rod 31 can be made of flexible material or rigid material.

[0050] The telescopic pull rod 32 includes a first telescopic slot 321, a second telescopic slot 322, and a force-bearing pull rod 323 connected between the first telescopic slot 321 and the second telescopic slot 322. A through hole is formed at one end of the first telescopic slot 321 and the second telescopic slot 322, and a hollow structure is designed in the middle. The force-bearing pull rod 323 respectively extends into the first telescopic slot 321 and the second telescopic slot 322 through the through holes, and the two ends of the force-bearing pull rod 323 are limited by the stop blocks 324 to avoid falling out of the first telescopic slot 321 and the second telescopic slot 322.

[0051] One of the first and second telescopic slots 321 and 322 is fixed on the upper end of the lifting mechanism 21 or the right angle guide slot mechanism 22 through a pin shaft 52, and the other is fixed on the side of the horizontal transport equipment frame body 1. When the lifting mechanism 21 of the lifting guide mechanism rises and falls, the telescopic pull rod 32 realizes telescopic through the in-out in the first / second telescopic slot, and provides lateral support force for the container; when the first / second telescopic slot is fixed on the lifting mechanism 21 and the side of the frame body 1, the telescopic pull rod 32 provides support based on stretching for the lower layer container; when the first / second telescopic slot is fixed on the right angle guide slot mechanism 22 and the side of the frame body 1, the telescopic pull rod 32 provides support based on stretching for the upper and lower layers of containers.

[0052] When the fixed pull rod 31 and the telescopic pull rod 32 are applied at the same time, one end of the telescopic pull rod 32 is fixed on the lifting mechanism 21, and the other end is fixed on the side of the frame body 1; then the telescopic pull rod 32 provides lateral support force for the lower layer container based on stretching, and the fixed pull rod 31 can provide support force for the upper layer container, ensuring the safety of container transportation.

[0053] When the fixed pull rod 31 is applied alone, the fixed pull rod 31 provides lateral support force for the lower layer container when the lifting mechanism is not lifted, and provides lateral support force for the upper layer container when the lifting mechanism is lifted, and the lower layer container is fixed based on the pressure of the upper layer container.

[0054] When the telescopic pull rod 32 is applied alone, the telescopic pull rod 32 provides lateral support force for the lower layer container when the lifting mechanism is not lifted, and provides lateral support force for the upper and lower layers of containers based on stretching when the lifting mechanism is lifted.

[0055] In order to realize the correct guiding position of the double-layer container on the horizontal transport equipment, the right angle guide slot mechanism 22 is designed, which can play the guiding and fixing function of container loading and unloading. The lifting guide mechanism 2 is provided with a set of right angle guide slot mechanisms 22 at both ends of the horizontal transport equipment, and the four right angle guide slot mechanisms 22 fix the upper part of the lifting mechanism 21. The lifting mechanism 21 realizes the guiding and fixing of single-layer and double-layer containers through lifting, and guides the container into the correct position while providing horizontal and vertical support.

[0056] The lifting mechanism 21 includes telescopic connecting rods (not limited to cross connecting rods and other structures capable of lifting), and a power driving device. The power source of the power driving device includes a series of power forms such as hydraulic, pneumatic, and electric, which will not change because of the power form.

[0057] The upper end of the right-angle guide groove mechanism 22 is designed with a large opening guide structure 23 (horn), and the lower end is designed as a right-angle guide groove fixed on the lifting mechanism 21. The right-angle guide groove is designed with a fixed shaft of the split force pull rod, which can prevent the displacement of the double-layer container.

[0058] The lifting guide mechanism is designed with an initial position of the lifting mechanism 21 of the lifting guide mechanism 2, which is usually the position of the lifting mechanism 21 in the non-lifting state. The position sensor is installed inside the right-angle guide groove mechanism 22, and the position sensor is preferably installed at a diagonal position to confirm the placement of each layer of containers and the lifting position of the lifting guide mechanism.

[0059] As shown in Figure 7 , when loading the container, the lifting guide mechanism is in the lower layer box position (initial position) by default, the loading and unloading equipment starts to load the lower layer container, the lower layer container is loaded to the position, the position sensor detects that the container is loaded to the position, and the lifting mechanism 21 starts to lift, and stops at the second layer position, waiting for loading. The loading and unloading equipment starts to load the upper layer container, and when the position sensor detects that the upper layer container has left the double-layer box position, the lifting mechanism 21 is controlled to descend to the lower layer position, and the lifting mechanism 21 stops, and the loading and unloading equipment starts to unload the lower layer box.

[0060] As shown in Figure 8 , when unloading the container, the loading and unloading equipment first unloads the upper layer container, and when the position sensor detects that the upper layer container has left the double-layer box position, the lifting mechanism 21 is controlled to descend to the lower layer position, and the lifting mechanism 21 stops, and the loading and unloading equipment starts to unload the lower layer box.

[0061] Based on the double-layer container transport equipment and the container loading and unloading method thereof, the loading and unloading equipment places the first container from the ship or the yard into the single-layer box position of the horizontal transport equipment through the guidance of the right-angle guide groove mechanism 22, and the container is fixed in the horizontal and vertical directions based on the fixed guide plate 4 and the right-angle guide groove mechanism 22. After the first container is placed, the lifting guide mechanism 2 at both ends of the frame body 1 is lifted from the single-layer box position to the double-layer box position, at this time the fixed pull rod 31 is lifted, and the telescopic pull rod 32 is stretched to provide lateral support force for the lower layer container to prevent displacement of the lower layer container. The loading and unloading equipment places the upper layer container into the double-layer box position through the guidance of the right-angle guide groove mechanism 22, and the fixed pull rod 31 provides lateral support force for the upper layer container.

[0062] When the horizontal transport equipment carrying the double-layer container is running, the lifting guide mechanism is locked and cannot be lowered until it reaches the transport destination; after reaching the destination, the loading and unloading equipment unloads the upper layer container, at this time the position sensor detects that the upper layer container has been unloaded, and the locking state is released, the lifting guide mechanism 2 is lowered, and the loading and unloading equipment takes the lower layer container again. After the taking is completed, the horizontal transport equipment leaves.

[0063] It should be pointed out that the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present application should also be within the protection scope of the present application.

Claims

1. A container loading and unloading method for double-stack container transport equipment, applied to double-stack container transport equipment, wherein the double-stack container transport equipment includes: The main body of the frame; Two lifting guide mechanisms are respectively located at both ends of the vehicle frame body, each consisting of a lifting mechanism and a guide mechanism fixed to the top of the lifting mechanism; wherein, the guide mechanism consists of four right-angle guide groove mechanisms; the position of the vehicle frame body between the two lifting guide mechanisms constitutes a single-layer box position; in the state of the lifting mechanism being lifted, the top of the two lifting mechanisms constitutes a double-layer box position. The four right-angle guide channels are respectively located on the upper part of the lifting mechanism of the two lifting guide mechanisms at the positions corresponding to the four corners of the container. The lifting mechanism guides and fixes the single / double-layer container during loading and unloading. The guide rail component tie rod includes a fixed tie rod and / or a telescopic tie rod; wherein, the fixed tie rod is rectangularly fixed to four right-angle guide rail mechanisms; one end of the telescopic tie rod is fixed to the lifting mechanism or the right-angle guide rail mechanism, and the other end is fixed to the side of the frame body; A position sensor is installed on the right-angle guide channel mechanism to confirm the placement position of each layer of container and the lifting position of the lifting guide mechanism; Its features include: Packing: S11. Determine whether the lifting guide mechanism is in the initial position. If it is in the initial position, place the container in the single-layer box position of the vehicle frame body based on the guidance of the guide mechanism. If it is not in the initial position, control the lifting mechanism to descend to the initial position. The initial position is the position of the lifting guide mechanism when the lifting mechanism is not in the lifting state. S12. When the lower container is loaded into place based on the detection signal from the position sensor, control the lifting mechanism to lift it. S13. After the lifting mechanism is raised to the position, the container is placed in the double-layer container position based on the guidance of the guide mechanism. S14. When the detection signal from the position sensor indicates that the upper container has been loaded into place, a permission instruction is generated to allow the equipment to move. Unpacking: S21. Unload the upper-level container; S22. Based on the detection signal from the position sensor, after determining that the upper container has been unloaded, control the lifting mechanism to descend; S23. When the lifting mechanism descends to the initial position, an instruction is generated to unload the lower-level container; S24. After determining that the lower container has been unloaded based on the detection signal from the position sensor, generate a permission instruction to allow the equipment to move.

2. The container loading and unloading method for double-stack container transport equipment according to claim 1, characterized in that, When the guide rail force-sharing rod includes a fixed rod and a telescopic rod, one end of the telescopic rod is fixed to the lifting mechanism; when the lifting mechanism rises, the fixed rod provides lateral support force for the upper container, and the telescopic rod provides lateral support force for the lower container by stretching.

3. The container loading and unloading method for double-stack container transport equipment according to claim 1, characterized in that, When the guide channel force-sharing rod only includes a telescopic rod, one end of the telescopic rod is fixed to the right-angle guide channel mechanism. When the lifting mechanism rises, the telescopic rod provides lateral support force to the upper and lower containers simultaneously through stretching.

4. The container loading and unloading method for double-stack container transport equipment according to claim 1, characterized in that, The right-angle guide channel mechanism is equipped with a flared structure at the top to guide the container.

5. The container loading and unloading method for double-stack container transport equipment according to claim 1, characterized in that, The telescopic rod includes: The first telescopic groove, the second telescopic groove, and the force-bearing tie rod connecting the first telescopic groove and the second telescopic groove; One end of the first / second telescopic groove is provided with a through hole, and the middle is a hollow structure. The two ends of the force-bearing tie rod extend into the first / second telescopic groove through the through hole respectively. The two ends of the tension rod are prevented from falling out of the first / second telescopic groove by stop blocks.

6. The container loading and unloading method for double-stack container transport equipment according to claim 1, characterized in that, The device also includes: A fixed guide plate is fixed to the side of the main body of the vehicle frame.

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