Quay crane loading and unloading system

Abstract

This invention relates to the field of loading and unloading equipment technology, and discloses a quay crane loading and unloading system, comprising: a container quay crane having a main beam and a quay crane trolley, with a spreader on the quay crane trolley; and a transfer mechanism located below the main beam, the transfer mechanism including a cargo basket, a counterweight, and a circulating drive device. The cargo basket and the counterweight are respectively connected to the circulating drive device and are respectively arranged symmetrically on both sides of the circulating drive device along the vertical direction. The cargo basket is suitable for carrying containers, and the circulating drive device is suitable for driving the cargo basket and the counterweight to reciprocate between a first height position and a second height position. This invention, by setting up a transfer mechanism, utilizes transferred containers, reduces the lifting distance of the spreader, and reduces the energy and time consumption of container lifting operations on the container quay crane; by using the counterweight symmetrically arranged with the cargo basket to offset part of the container's weight, the driving power of the circulating drive device is reduced, further reducing the energy consumption of transferring containers on the transfer mechanism.

Description

Technical Field

[0001] This invention relates to the field of loading and unloading equipment technology, and more specifically to a quay crane loading and unloading system. Background Technology

[0002] As the most important container loading and unloading equipment in port terminals, quay cranes undertake the vast majority of container ship loading and unloading work at port terminals. Therefore, the working efficiency of quay cranes directly affects the container ship loading and unloading efficiency of port terminals.

[0003] In the operation of a quay crane, the quay crane trolley moves along the main beam, and the spreader is pulled onto the trolley by a wire rope. The extension or retraction of the wire rope controls the raising or lowering of the spreader, thereby lifting or lowering the container. In conjunction with the movement of the quay crane trolley, the container is transported between the container truck and the container ship. Because the stacking height of containers on the container ship on the sea side is often much higher than that of the container truck on the roadside, the distance that the wire rope needs to be lowered or retracted during container transportation operations is long. This makes the long-distance lifting operation of the spreader with the container energy-intensive and time-consuming. Summary of the Invention

[0004] In view of this, the present invention provides a quay crane loading and unloading system to solve the problems of high energy consumption and long time consumption during the current container quay crane lifting operation.

[0005] This invention provides a quay crane loading and unloading system, comprising: a container quay crane having a main beam and a quay crane trolley adapted to move along the main beam, the quay crane trolley being equipped with a lifting or lowering spreader adapted to lift containers; and a transfer mechanism located below the main beam, the transfer mechanism comprising a cargo basket, a counterweight, and a cyclic drive device, the cargo basket and the counterweight being respectively connected to the cyclic drive device and respectively arranged on both sides of the cyclic drive device symmetrically along the vertical direction, the cargo basket being adapted to carry containers, and the cyclic drive device being adapted to drive the cargo basket and the counterweight to reciprocate between a first height position and a second height position.

[0006] Beneficial effects: This invention provides a quay crane loading and unloading system. By setting up a transfer mechanism, the system uses a cargo basket to transfer containers between a first height position and a second height position below the quay crane trolley, reducing the lifting distance of the spreader and the energy and time consumption of container lifting operations on the quay crane. By using counterweights symmetrically arranged with the cargo basket to offset part of the container's weight, the driving power of the circulating drive device is reduced, further reducing the energy consumption of container transfer on the transfer mechanism. This solves the problem of high energy consumption and long time consumption during container lifting operations on current quay cranes.

[0007] In one optional implementation, multiple load-bearing baskets and counterweights are provided, and they are arranged in a one-to-one correspondence.

[0008] Beneficial effects: Setting up multiple cargo baskets in the transfer mechanism allows for the storage of multiple containers, improving the efficiency of container loading and unloading by the quay crane; the one-to-one correspondence between multiple cargo baskets and multiple counterweights improves the stability of the transfer mechanism's operation.

[0009] In one optional embodiment, the driving device includes: a sprocket adapted to be driven to rotate; a chain tensioned on the outside of the sprocket; a plurality of cargo baskets and a plurality of counterweights respectively arranged circumferentially along the chain; the chain is adapted to move with the rotation of the sprocket to drive the plurality of cargo baskets and the plurality of counterweights to move.

[0010] Beneficial effect: By using the combination of sprockets and chains for transmission, multiple cargo baskets and multiple counterweights can reciprocate between the first height position and the second height position.

[0011] In one alternative embodiment, a plurality of the cargo baskets and the plurality of the counterweights are respectively and evenly spaced on the chain.

[0012] Beneficial effects: By arranging multiple cargo baskets and counterweights evenly at intervals on the chain, the overall weight distribution of the transfer mechanism is uniform after the cargo baskets are loaded into the container, ensuring the operational stability of the transfer mechanism.

[0013] In one optional embodiment, two sets of chains are arranged opposite each other, suitable for being driven by two sets of sprockets respectively; a first rotating shaft is provided in the length direction of the cargo basket, and the first rotating shaft is rotatably connected between the two sets of chains; a second rotating shaft is provided in the length direction of the counterweight, and the second rotating shaft is rotatably connected between the two sets of chains.

[0014] Beneficial effects: The first rotating shaft connects the cargo basket to the two sets of chains, and the second rotating shaft connects the counterweight to the two sets of chains. This ensures that the cargo basket and the counterweight always maintain an upright position due to gravity, thus ensuring the stability of container transfer in the cargo basket and the stable operation of the counterweight itself.

[0015] In one alternative embodiment, the top of the cargo basket has a first opening, the width of which is greater than the width of the container and the length of which is greater than the length of the container, and the spreader is adapted to lift the container into or out of the cargo basket through the first opening.

[0016] Beneficial effects: The container can be lifted into or out of the container quay crane by using the first opening at the top of the container. The width of the first opening is greater than the width of the container, and the length of the first opening is greater than the length of the container, which facilitates the smooth lifting of the container into or out of the container.

[0017] In one alternative embodiment, the quay crane loading and unloading system further includes a transport vehicle adapted to transport containers on the ground, the transport vehicle being adapted to unload containers when the cargo container is at a first height position.

[0018] Beneficial effects: When the cargo container is at its first height position, the container is loaded and unloaded by the transport vehicle. At this time, the cargo container and the transport vehicle are fixed structures to fixed structures, which greatly reduces the difficulty of container handling between the two and reduces the time consumed in container handling between the cargo container and the transport vehicle, further improving the efficiency of container loading and unloading by the quay crane.

[0019] In one optional embodiment, a second opening is provided on the side of the cargo basket along its length, the width of which is greater than the width of the container; a third opening is provided at the bottom of the cargo basket, the width of which is less than the width of the container; the transport vehicle is equipped with a lifting mechanism suitable for lifting or lowering the container, the width of the lifting platform in the lifting mechanism being less than the width of the third opening; when the container is loaded into the cargo basket, the lifting mechanism lifts the container on the transport vehicle, and the transport vehicle moves along the length of the cargo basket, causing the container to... The container enters the cargo basket through the second opening, and the lifting mechanism moves along the third opening. After the container is in place, the lifting mechanism lowers through the third opening, causing the container to fall into the cargo basket. When unloading the container from the cargo basket, the lifting mechanism lifts the container in the cargo basket, and the transport vehicle moves along the length of the cargo basket, causing the container to leave the cargo basket through the second opening. The lifting mechanism moves along the third opening, and after the container has completely left, the lifting mechanism lowers, allowing the container to be loaded onto the transport vehicle.

[0020] Beneficial effects: The second opening on the cargo basket facilitates the transport of containers in or out of the cargo basket along its length. The third opening on the cargo basket facilitates the movement of the lifting mechanism of the transport vehicle. At the same time, the width limitation of the third opening can prevent the container from falling out. The width of the lifting platform in the lifting mechanism is smaller than the width of the third opening, which facilitates the lifting platform to smoothly enter and exit the cargo basket through the third opening.

[0021] In one optional embodiment, the cargo basket includes a main frame and two base plates connected to the main frame, the main frame having a second opening and the third opening being formed between the two base plates.

[0022] Beneficial effects: The main structure of the cargo basket is set as a frame structure of the main frame, so as to reduce the overall weight of the cargo basket; the two bottom plates ensure effective load-bearing of the container.

[0023] In one alternative embodiment, the container quay crane has a main structure adapted to be supported on the ground, and the transfer mechanism is disposed on the main structure.

[0024] Beneficial effects: Using the main structure of the container quay crane as the installation foundation for the transfer mechanism improves the overall integrity of the quay crane loading and unloading system. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a quay crane loading and unloading system provided by the present invention;

[0027] Figure 2 A top view of the cargo basket provided by the present invention;

[0028] Figure 3 A front view of the cargo basket provided by the present invention;

[0029] Figure 4 A side view of the cargo basket provided by the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of a transport vehicle loading a container, provided by the present invention.

[0031] Figure 6 This is a schematic diagram of the lifting mechanism in the transport vehicle provided by the present invention acting on the container.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Container quay crane; 101. Main beam; 102. Quay crane trolley; 103. Spreading equipment; 104. Main structure;

[0034] 2. Transfer mechanism; 201. Cargo basket; 2011. First rotating shaft; 2012. First opening; 2013. Second opening; 2014. Third opening; 2015. Main frame; 2016. Base plate; 202. Sprocket; 203. Chain; 204. Counterweight;

[0035] 3. Transport vehicle; 301. Lifting mechanism;

[0036] 100. Container. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The following is combined with Figures 1-6 The following describes embodiments of the present invention.

[0039] According to embodiments of the present invention, a quay crane loading and unloading system is provided, such as... Figure 1 As shown, it includes:

[0040] The container quay crane 1 has a main beam 101 and a quay crane trolley 102 adapted to move along the main beam 101. The quay crane trolley 102 is equipped with a spreader 103 that can be raised or lowered, and the spreader 103 is adapted to lift the container 100. The transfer mechanism 2 is located below the main beam 101. The transfer mechanism 2 includes a cargo basket 201, a counterweight 204 and a circulating drive device. The cargo basket 201 and the counterweight 204 are respectively connected to the circulating drive device and are respectively arranged on both sides of the circulating drive device symmetrically in the vertical direction. The cargo basket 201 is adapted to carry the container 100, and the circulating drive device is adapted to drive the cargo basket 201 and the counterweight 204 to reciprocate between a first height position and a second height position.

[0041] In the above embodiment, by setting up the transfer mechanism 2, the container 100 is transferred between the first height position and the second height position below the quay crane trolley 102 using the cargo basket 201, reducing the lifting distance of the spreader 103 and reducing the energy consumption and time consumption of container lifting operation on the container quay crane 1; by using the counterweight 204 symmetrically arranged with the cargo basket 201 to offset part of the weight of the container 100, the driving power of the cycle drive device is reduced, and the energy consumption of transferring the container 100 on the transfer mechanism 2 is reduced, thereby solving the problem of high energy consumption and long time consumption when lifting containers on the current container quay crane.

[0042] Specifically, such as Figure 1As shown, the first height position is above the second height position. When the cargo container 201 moves to the second height position, the subsequent transport equipment can load the container 100 into the cargo container 201, or transfer the container 100 from the cargo container 201 to the subsequent transport equipment. The container quay crane 1 and the transfer mechanism 2 can operate independently. After the spreader 103 lifts the container 100 into place, it can leave to start the next operation. Similarly, after the cargo container 201 transports the container 100 into place, it can leave to start the next operation. The two transfer modes do not affect each other and are rationally divided, thereby reducing the time consumption of container lifting operations on the container quay crane 1 and helping to improve the efficiency of container loading and unloading on the quay crane. Since the transfer mechanism 2 can reciprocate between the first height position and the second height position to transfer the container 100, the running distance of the spreader 103 lifting the container 100 on the container quay crane 1 is greatly reduced, thereby reducing the energy consumption of container lifting operations on the container quay crane 1.

[0043] Furthermore, such as Figure 1 As shown, the overall structure of the container 100 and the cargo basket 201, along with the weight balance of the counterweight 204, reduces the driving force required by the cyclic drive device. When the overall structure of the container 100 and the cargo basket 201 rises, the weight of the entire structure increases due to gravitational acceleration, requiring increased driving force to overcome gravity and maintain operation. Conversely, when the overall structure of the container 100 and the cargo basket 201 descends, the weight decreases due to gravitational acceleration, requiring reduced driving force to maintain stable operation. Therefore, the counterweight 204 offsets a portion of the weight of the container 100, reducing the driving power of the cyclic drive device, decreasing energy consumption during the transfer of the container 100 on the transfer mechanism 2, and improving the safety and stability of the transfer mechanism 2. The specific weight of the counterweight 204 needs to be selected based on the actual application, ensuring that its weight is greater than the weight of the cargo basket 201 but less than the overall weight of the container 100 and the cargo basket 201.

[0044] Furthermore, such as Figure 1 As shown, the width of the loading basket 201 is set to be greater than the width of the container 100. The loading basket 201 serves as a transfer device to carry the container 100, facilitating the smooth loading and unloading of the container 100 into or out of the loading basket 201. This reduces the time spent on container handling operations between the spreader 103 and the loading basket 201, thereby further improving the efficiency of container loading and unloading by the quay crane. For example, the width of the loading basket 201 can be set to 1.2 to 1.5 times the width of the container 100.

[0045] Furthermore, such as Figure 1As shown, this embodiment does not limit the specific structural form of the cyclic drive device. It can be a vertical roller belt driven cyclic rotation structure or a vertical sprocket chain driven cyclic rotation structure.

[0046] In some embodiments, such as Figure 1 As shown, multiple cargo baskets 201 and counterweights 204 are provided, and they are arranged in a one-to-one correspondence.

[0047] In the above embodiment, multiple cargo baskets 201 are provided in the transfer mechanism 2 so as to store multiple containers 100 and improve the efficiency of container loading and unloading by the quay crane; multiple cargo baskets 201 and multiple counterweights 204 are set one-to-one to improve the stability of the operation of the transfer mechanism 2.

[0048] Specifically, such as Figure 1 As shown, by setting up multiple cargo baskets 201, the transfer mechanism 2 can be temporarily used as a storage mechanism to hold containers 100. When the container quay crane 1 lifts the container 100 too quickly, or when subsequent transport equipment loads the container 100 too quickly, the container 100 can be temporarily stored in the transfer mechanism 2, which can reasonably adjust the loading and unloading rhythm, avoid the container quay crane 1 or subsequent transport equipment being idle, and thus improve the efficiency of the quay crane in loading and unloading containers. The multiple cargo baskets 201 and multiple counterweights 204 are set up one-to-one, so that after the cargo basket 201 is loaded with the container 100, one counterweight 204 can offset part of the weight of the container 100, so that the weight is evenly distributed on both sides of the cyclic drive device along the vertical direction, thereby improving the stability of the transfer mechanism 2.

[0049] Furthermore, such as Figure 1 As shown, in this embodiment, a total of three carrying baskets 201 and three counterweights 204 are provided; of course, the carrying baskets 201 can also be set to one, two, four, etc., and the counterweights 204 can also be set to one, two, four, etc.

[0050] In some embodiments, as a preferred implementation, such as Figure 1 As shown, the cyclic drive device includes a sprocket 202 and a chain 203.

[0051] The sprocket 202 is adapted to be driven to rotate; the chain 203 is tensioned and arranged on the outside of the sprocket 202, and multiple cargo baskets 201 and multiple counterweights 204 are respectively arranged along the circumference of the chain 203. The chain 203 is adapted to move with the rotation of the sprocket 202 to drive the multiple cargo baskets 201 and multiple counterweights 204 to move.

[0052] In the above embodiment, the sprocket 202 and chain 203 are used to drive the reciprocating cycle of multiple cargo baskets 201 and multiple counterweights 204 between the first height position and the second height position.

[0053] Specifically, such as Figure 1 As shown, a support structure is set as the supporting base for the sprocket 202. The sprocket 202 is rotatably connected to the support structure and can be driven to rotate on the support structure. The driving force comes from the drive motor. The chain 203 is placed vertically as a whole. The chain 203 is simultaneously tensioned on the outside of the sprocket 202 and the support wheel (not shown in the figure). The sprocket 202 is used as the power output wheel. The support wheel (not shown in the figure) is rotatably connected to the support structure and can be driven to rotate on the support structure or simply rotate as a tensioning structure. Thus, the chain 203 moves with the rotation of the sprocket 202, thereby driving multiple cargo baskets 201 and multiple counterweights 204 to reciprocate in a cyclical manner.

[0054] In some embodiments, such as Figure 1 As shown, multiple cargo baskets 201 and multiple counterweights 204 are evenly spaced on the chain 203.

[0055] In the above embodiment, multiple cargo baskets 201 and multiple counterweights 204 are evenly arranged on the chain 203 at intervals, so that the weight distribution of the transfer mechanism 2 is uniform after the cargo baskets 201 are loaded into the container 100, thus ensuring the operational stability of the transfer mechanism 2.

[0056] Specifically, such as Figure 1 As shown, in this embodiment, the circulating drive device has three loading baskets 201 evenly spaced on one side of the vertical direction, and three counterweights 204 evenly spaced on the other side of the vertical direction. The distance between adjacent loading baskets 201 and counterweights 204 is equal to the distance between two adjacent loading baskets 201 or the distance between two adjacent counterweights 204.

[0057] In some embodiments, such as Figure 1 , Figure 2 As shown, there are two sets of chains 203 arranged opposite each other, which are suitable for being driven by two sets of sprockets 202 respectively; a first rotating shaft 2011 is provided in the length direction of the carrying basket 201, and the first rotating shaft 2011 is rotatably connected between the two sets of chains 203; a second rotating shaft is provided in the length direction of the counterweight 204, and the second rotating shaft is rotatably connected between the two sets of chains 203.

[0058] In the above embodiment, the first rotating shaft 2011 is used to rotatably connect the cargo basket 201 between two sets of chains 203, and the second rotating shaft is used to rotatably connect the counterweight 204 between the two sets of chains 203, so that the cargo basket 201 and the counterweight 204 always maintain an upright position due to gravity, ensuring the stability of the container 100 in the cargo basket 201 during transfer and the stable operation of the counterweight 204 itself.

[0059] Specifically, such as Figure 1 , Figure 2 As shown, two sets of chains 203 are arranged along the length of the carrying basket 201. Two first rotating shafts 2011 are provided along the length of the carrying basket 201 and are located on both sides of the carrying basket 201. The two first rotating shafts 2011 are rotatably connected to the two sets of chains 203. The thickness of the sprocket 202 is similar to the thickness of the chain 203 to avoid interference between the sprocket 202 and the carrying basket 201.

[0060] Furthermore, the counterweight 204 has two second rotating shafts (not shown in the figure) along its length, which are located on both sides of the cargo basket 201. The two second rotating shafts (not shown in the figure) are rotatably connected to two sets of chains 203.

[0061] In some embodiments, such as Figure 1 , Figure 2 As shown, the top of the cargo basket 201 has a first opening 2012. The width of the first opening 2012 is greater than the width of the container 100, and the length of the first opening 2012 is greater than the length of the container 100. The spreader 103 is adapted to lift the container 100 into or out of the cargo basket 201 through the first opening 2012.

[0062] In the above embodiment, the container 100 is hoisted into or out of the cargo basket 201 from one side of the container quay crane 1 using the first opening 2012 at the top of the cargo basket 201. The width of the first opening 2012 is greater than the width of the container 100, and the length of the first opening 2012 is greater than the length of the container 100, so that the container 100 can be smoothly hoisted into or out of the cargo basket 201.

[0063] Specifically, such as Figure 1 , Figure 2 As shown, the first opening 2012 is provided on the top plane of the carrying basket 201, and the width of the first opening 2012 is the same as the width of the carrying basket 201.

[0064] Furthermore, such as Figure 1 , Figure 2As shown, the width of the first opening 2012 is set to 1.2 to 1.5 times the width of the container 100 to ensure that the container 100 can be smoothly hoisted into or out of the cargo basket 201.

[0065] In some embodiments, such as Figure 1 As shown, the quay crane loading and unloading system also includes a transport vehicle 3 suitable for transporting the container 100 on the ground, the transport vehicle 3 being suitable for unloading the container 100 when the cargo container 201 is at a first height position.

[0066] In the above embodiment, when the cargo basket 201 is at the first height position, the container 100 is loaded and unloaded by the transport vehicle 3. At this time, the cargo basket 201 and the transport vehicle 3 are fixed structures to fixed structures, which greatly reduces the difficulty of container operation between the two and can reduce the time consumption of container operation between the cargo basket 201 and the transport vehicle 3, thereby further improving the efficiency of container loading and unloading by the quay crane.

[0067] Specifically, such as Figure 1 As shown, when the cargo basket 201 is at the first height position, it is close to the ground. At this time, the transport vehicle 3 can directly load and unload the container 100 in the cargo basket 201.

[0068] Furthermore, such as Figure 1 As shown, it should be noted that although the transfer operation of the transfer mechanism 2 proposed in this embodiment requires a container alignment operation between the spreader 103 and the cargo container 201, and a second container alignment operation between the cargo container 201 and the transport vehicle 3, since the container quay crane 1 and the transfer mechanism 2 can operate independently, the two transfer modes do not affect the reasonable division of labor, so the two container alignment operations will not increase the overall transfer time.

[0069] In some embodiments, such as Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a second opening 2013 is provided on the side of the cargo basket 201 along its length, and the width of the second opening 2013 is greater than the width of the container 100; a third opening 2014 is provided on the bottom of the cargo basket 201, and the width of the third opening 2014 is less than the width of the container 100; a lifting mechanism 301 suitable for lifting or lowering the container 100 is provided on the transport vehicle 3, and the width of the lifting platform in the lifting mechanism 301 is less than the width of the third opening 2014; when the container 100 is loaded into the cargo basket 201, the lifting mechanism 301 lifts the container 100 on the transport vehicle 3, and the transport vehicle 3 moves along the length of the cargo basket 201, so that the container 100 moves from the second opening... The container 100 enters the cargo basket 201 through the opening 2013, and the lifting mechanism 301 moves along the third opening 2014. After the container 100 is in place, the lifting mechanism 301 falls down through the third opening 2014, causing the container 100 to fall into the cargo basket 201. When unloading the container 100 from the cargo basket 201, the lifting mechanism 301 lifts the container 100 in the cargo basket 201, and the transport vehicle 3 moves along the length of the cargo basket 201, causing the container 100 to leave the cargo basket 201 through the second opening 2013. The lifting mechanism 301 moves along the third opening 2014. After the container 100 has completely left, the lifting mechanism 301 falls down, causing the container 100 to be loaded onto the transport vehicle 3.

[0070] In the above embodiment, the second opening 2013 on the cargo basket 201 facilitates the container 100 to be transported out of or into the cargo basket 201 along its length. The third opening 2014 on the cargo basket 201 facilitates the movement of the lifting mechanism 301 of the transport vehicle 3. At the same time, the width limitation of the third opening 2014 can prevent the container 100 from falling out. The width of the lifting platform in the lifting mechanism 301 is smaller than the width of the third opening 2014, which facilitates the lifting platform to smoothly enter and exit the cargo basket 201 through the third opening 2014.

[0071] Specifically, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the lifting mechanism 301 is installed on the cargo platform of the transport vehicle 3. It can lift or lower the container 100 by hydraulic or pneumatic drive, so that the container 100 is higher than the bottom of the cargo basket 201, so that the container 100 can be loaded into or transported out of the cargo basket 201.

[0072] In some embodiments, such as Figure 2 , Figure 3 As shown, the cargo basket 201 includes a main frame 2015 and two base plates 2016 connected to the main frame 2015. The main frame 2015 is provided with a second opening 2013, and a third opening 2014 is formed between the two base plates 2016.

[0073] In the above embodiment, the main structure of the cargo basket 201 is set as the frame structure of the main frame 2015 in order to reduce the overall weight of the cargo basket 201; the two bottom plates 2016 ensure effective support for the container 100.

[0074] Specifically, such as Figure 2 As shown, the main frame 2015 has a second opening 2013 on its side and a first opening 2012 on its top.

[0075] In some embodiments, such as Figure 1 As shown, the container quay crane 1 has a main structure 104 suitable for support on the ground, and the transfer mechanism 2 is installed on the main structure 104.

[0076] In the above embodiments, the main structure 104 of the container quay crane 1 is used as the installation foundation for the transfer mechanism 2, thereby improving the overall integrity of the quay crane loading and unloading system.

[0077] Specifically, such as Figure 1 As shown, the main structure 104 of the container quay crane 1 provides an installation position for the transfer mechanism 2, so that the sprocket 202 and support wheel (not shown in the figure) on the transfer mechanism 2 can be directly rotatably connected to the main structure 104 of the container quay crane 1.

[0078] The following is an operational method for a quay crane loading and unloading system provided in this embodiment:

[0079] When loading container 100 from the roadside transport vehicle 3 onto the seaside container ship, the transport vehicle 3, carrying container 100, drives to the front of the transfer mechanism 2 and aligns container 100 with the cargo basket 201 at the first height position. The lifting mechanism 301 lifts container 100 from the transport vehicle 3, and the transport vehicle 3 reverses along the length of the cargo basket 201, so that container 100 enters the cargo basket 201 through the second opening 2013, and the lifting mechanism 301 moves along the third opening 2014 of the cargo basket 201. After container 100 is in place, the lifting mechanism 301 lowers through the third opening 2014, causing container 100 to fall into the cargo basket 201. The cyclic drive device of the transfer mechanism 2 drives the cargo basket 201 to the second height position. At this time, the counterweight 204 corresponding to the cargo basket 201 falls from the second height position to the first height position. The spreader 103 of the container quay crane 1 lifts container 100 out of the first opening 2012 of the cargo basket 201. The container 100 is loaded into the container ship on the sea side by the retraction of the wire rope and the movement of the quay crane trolley.

[0080] When container 100 is loaded from the container ship on the sea side onto the transport vehicle 3 on the roadside, the spreader 103 of the container quay crane 1 lifts container 100 from the container ship on the sea side. Through the extension and retraction of the wire rope and the movement of the quay crane trolley, container 100 is loaded from the first opening 2012 of the carrying basket 201 into the carrying basket 201 located at the second height position. The circulating drive device of the transfer mechanism 2 drives the carrying basket 201 to fall back to the first height position. At this time, the counterweight 204 corresponding to the carrying basket 201 moves from the first height position... The container 100 is lifted to the second height position and the transport vehicle 3 travels directly under the cargo basket 201. The lifting mechanism 301 passes through the third opening 2014 and lifts the container 100 in the cargo basket 201. The transport vehicle 3 travels forward along the length of the cargo basket 201, so that the container 100 leaves the cargo basket 201 through the second opening 2013. The lifting mechanism 301 moves along the third opening 2014. After the container 100 has completely left, the lifting mechanism 301 falls down, so that the container 100 is loaded onto the transport vehicle 3 on the roadside.

[0081] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A quay crane loading and unloading system, characterized in that, include: A container quay crane (1) has a main beam (101) and a quay crane trolley (102) adapted to move along the main beam (101), the quay crane trolley (102) being provided with a spreader (103) that can be raised or lowered, the spreader (103) being adapted to lift a container (100). The transfer mechanism (2) is located below the main beam (101). The transfer mechanism (2) includes a cargo basket (201), a counterweight (204), and a circulating drive device. The cargo basket (201) and the counterweight (204) are respectively connected to the circulating drive device and are respectively arranged on both sides of the circulating drive device symmetrically in the vertical direction. The cargo basket (201) is suitable for carrying the container (100). The circulating drive device is suitable for driving the cargo basket (201) and the counterweight (204) to reciprocate between a first height position and a second height position. The top of the cargo basket (201) is provided with a first opening (2012), the width of the first opening (2012) is greater than the width of the container (100), and the length of the first opening (2012) is greater than the length of the container (100). The spreader (103) is adapted to lift the container (100) into or out of the cargo basket (201) through the first opening (2012). It also includes a transport vehicle (3) suitable for transporting the container (100) on the ground, the transport vehicle (3) being adapted to unload the container (100) when the cargo basket (201) is at a first height position; The cargo basket (201) has a second opening (2013) on its side along its length, and the width of the second opening (2013) is greater than the width of the container (100); the cargo basket (201) has a third opening (2014) at its bottom, and the width of the third opening (2014) is less than the width of the container (100). The transport vehicle (3) is equipped with a lifting mechanism (301) suitable for lifting or lowering the container (100), and the width of the lifting platform in the lifting mechanism (301) is smaller than the width of the third opening (2014). When the container (100) is loaded into the cargo basket (201), the lifting mechanism (301) lifts the container (100) on the transport vehicle (3), and the transport vehicle (3) moves along the length of the cargo basket (201), so that the container (100) enters the cargo basket (201) through the second opening (2013), and the lifting mechanism (301) moves along the third opening (2014). After the container (100) is in place, the lifting mechanism (301) falls down through the third opening (2014), so that the container (100) falls into the cargo basket (201). When the container (100) is unloaded from the cargo basket (201), the lifting mechanism (301) lifts the container (100) in the cargo basket (201), and the transport vehicle (3) moves along the length of the cargo basket (201), so that the container (100) leaves the cargo basket (201) through the second opening (2013), and the lifting mechanism (301) moves along the third opening (2014). After the container (100) has completely left, the lifting mechanism (301) falls down, so that the container (100) is loaded onto the transport vehicle (3). The cargo basket (201) includes a main frame (2015) and two base plates (2016) connected to the main frame (2015). The main frame (2015) is provided with a second opening (2013), and a third opening (2014) is formed between the two base plates (2016).

2. The quay crane loading and unloading system according to claim 1, characterized in that, The cargo basket (201) and the counterweight (204) are provided in multiple quantities, and are provided in a one-to-one correspondence.

3. The quay crane loading and unloading system according to claim 2, characterized in that, The cycle drive device includes: Sprockets (202) are adapted to be driven to rotate; A chain (203) is tensioned on the outside of the sprocket (202). Multiple cargo baskets (201) and multiple counterweights (204) are respectively arranged along the circumference of the chain (203). The chain (203) is adapted to move with the rotation of the sprocket (202) to drive the multiple cargo baskets (201) and the multiple counterweights (204) to move.

4. The quay crane loading and unloading system according to claim 3, characterized in that, The multiple cargo baskets (201) and the multiple counterweights (204) are respectively and evenly spaced on the chain (203).

5. The quay crane loading and unloading system according to claim 3 or 4, characterized in that, The chain (203) is arranged in two sets opposite to each other, and is suitable to be driven by the two sets of sprockets (202) respectively; The cargo basket (201) is provided with a first rotating shaft (2011) along its length, and the first rotating shaft (2011) is rotatably connected between the two sets of chains (203); The counterweight (204) has a second rotating shaft along its length, which is rotatably connected between the two sets of chains (203).

6. The quay crane loading and unloading system according to claim 1, characterized in that, The container quay crane (1) has a main structure (104) suitable for support on the ground, and the transfer mechanism (2) is disposed on the main structure (104).

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