Hoisting and stacking machine for container and working method of hoisting and stacking machine

Abstract

The invention belongs to the technical field of container hoisting and stacking, and particularly relates to equipment for moving containers, in particular to a hoisting and stacking machine for containers and a working method of the hoisting and stacking machine. Wherein a reach stacker and a stacking machine are integrated into one device through the folding type lifting and stacking mechanism, the number of devices and overall space occupation are effectively reduced, a folded arm frame is compactly stored on a frame, and the container lifting and stacking machine is particularly suitable for occasions with limited space such as ports and storage yards. The equipment purchase and maintenance cost is reduced, the site congestion is relieved, and the operation efficiency is improved. Meanwhile, the clamping piece at the top of the supporting frame is matched with the clamping hole in the folding type hoisting and stacking mechanism in an inserted mode, the folded arm frame can be firmly locked on the supporting frame when equipment is transferred or moved, arm body shaking caused by complex road conditions is effectively restrained, and therefore the impact load caused by shaking to the driving oil cylinder is remarkably reduced, and the service life of the arm body is prolonged. The service life of key components such as the oil cylinder is prolonged, and the reliability and the safety of equipment are improved.

Description

Technical Field

[0001] This invention belongs to the field of container stacking technology, specifically relating to equipment for moving containers, and more particularly to a container stacking machine and its working method. Background Technology

[0002] In the field of container stacking technology, forklifts and reach stackers are the core equipment for container loading, unloading and stacking operations in ports and logistics stations. Traditionally, they are used in a dedicated manner. Forklifts are specifically used for vertical stacking of empty containers, with stacking layers usually reaching 6 to 8 layers, while reach stackers are mostly used for the transfer and stacking of loaded containers, with stacking layers usually reaching 3 to 5 layers.

[0003] While this dual-machine coexistence mode can meet basic functional requirements, it leads to an increase in the number of devices and a significant increase in overall space occupation. In ports or storage yards with limited space, the coexistence of multiple machines not only increases the cost of purchase and maintenance but also exacerbates site congestion and reduces operational efficiency.

[0004] Employing a foldable cantilever structure, this system integrates a front-end crane and a forklift into a single unit. This achieves the high-level stacking requirements of the forklift while also ensuring the accessibility of the front-end crane (which is significantly shorter than the forklift). It solves the problem of multiple machines operating simultaneously, resulting in redundant equipment.

[0005] In addition, to avoid adverse effects on the boom and luffing cylinder caused by the vibration and impact of the chassis during equipment movement or relocation, the crane is designed with a boom locking mechanism to protect the equipment and extend its service life. Summary of the Invention

[0006] This disclosure provides at least one container stacker crane and its operating method.

[0007] In a first aspect, embodiments of this disclosure provide a container stacker crane, comprising:

[0008] Frame;

[0009] A support frame is mounted on the vehicle frame, and a shock-absorbing pad is provided on the top of the support frame;

[0010] A foldable stacking mechanism is disposed above the vehicle frame, with one end of the foldable stacking mechanism disposed on the vehicle frame and the other end supported by the support frame;

[0011] The top of the support frame is provided with a clamping component;

[0012] The foldable stacking mechanism is provided with a locking hole at the fitting point between itself and the clamping component;

[0013] When the foldable stacking mechanism is placed on the support frame, the foldable stacking mechanism is fixed to the support frame by the insertion and engagement of the clamping parts and the clamping holes, thereby suppressing the foldable stacking mechanism from shaking during vehicle frame operation;

[0014] When the folding lifting and stacking mechanism is in operation, the locking parts are released from the locking holes, and the folding lifting and stacking mechanism is driven by the top-pushing cylinder to realize the lifting or stacking of containers.

[0015] In one optional implementation, the foldable stacking mechanism includes:

[0016] Basic boom, working boom, and lifting gear;

[0017] One end of the basic arm is rotatably connected to the vehicle frame and is driven by the first hydraulic cylinder;

[0018] One end of the working arm is rotatably connected to the other end of the basic arm and is driven by a second hydraulic cylinder;

[0019] The lifting device is located at the other end of the working arm;

[0020] When the container stacker is not in operation, the working arm and the basic arm are folded and stored on the frame, and the working arm with the locking holes is inserted and fixed by the clamping parts of the support frame.

[0021] In one alternative embodiment, the clamping element includes:

[0022] The push cylinder is fixedly mounted on the support frame via a connecting plate;

[0023] A push shaft is mounted on the piston rod of the push cylinder. When the push cylinder is working, it pushes the push shaft into the locking hole.

[0024] In one optional embodiment, the piston rod of the push cylinder is provided with a telescopic groove;

[0025] One end of the push shaft is elastically connected to the telescopic groove via a return spring;

[0026] The piston rod is provided with a drive guide rod radially toward the push shaft;

[0027] The end of the drive guide rod extends into the spiral groove of the push shaft.

[0028] In one optional embodiment, when the push cylinder is working, it pushes the push shaft toward the locking hole. When foreign objects accumulate in the locking hole, preventing the push shaft from being inserted further, the push cylinder continues to push the piston rod to move, so that the push shaft squeezes the return spring, causing the drive guide rod to drive the push shaft to rotate, thereby causing the push shaft to rotate and clean the foreign objects through the spiral groove, allowing the push shaft to continue to be inserted toward the locking hole.

[0029] In one alternative embodiment, the end of the card hole extends outward to form a support curved surface;

[0030] When the piston rod of the push cylinder pushes the drive guide rod to abut against the abutting curved surface, a secondary lock is formed. At the same time, the end of the drive guide rod away from the push shaft retracts inward to abut against the push shaft, thus locking the abutting shaft.

[0031] In one alternative embodiment, a ball bearing is provided radially inward at the end of the drive guide rod away from the push shaft;

[0032] The ball bearings are disposed within the spiral groove.

[0033] In one alternative embodiment, the drive guide rod is disposed on the connecting ring;

[0034] The connecting ring is sleeved on the piston rod, and the end of the piston rod is provided with a limiting flange;

[0035] The piston rod is provided with a chamber door, and the chamber door is provided with a retaining rod;

[0036] When the compartment door is closed, the abutment rod abuts against the connecting ring;

[0037] When the compartment door is opened, the return spring in the telescopic groove is exposed, and the abutment between the abutment rod and the connecting ring is released.

[0038] In one alternative implementation, the base arm and / or the working arm is a telescopic rod.

[0039] Secondly, embodiments of this disclosure provide a working method for a container stacker crane as described above.

[0040] When the container stacker crane is not in operation, the operating method includes:

[0041] The control mechanism for the folding stacking device is placed on a support frame;

[0042] The folding stacking mechanism is placed and fixed on the support frame using clamping devices;

[0043] When the container stacker crane is in operation, the operating method includes:

[0044] Release the locking part from the locking hole;

[0045] Adjust the folding lifting and stacking mechanism to realize container lifting and stacking operations.

[0046] The beneficial effects of this invention are that the container stacker crane and its working method integrate a reach stacker and a forklift into a single device through a folding stacking mechanism, effectively reducing the number of devices and the overall space occupied. The folded boom is compactly stored on the chassis, minimizing the overall size of the machine when not in operation, making it particularly suitable for space-constrained scenarios such as ports and container yards. This integrated design not only reduces equipment purchase and maintenance costs but also alleviates site congestion and improves operational efficiency. Simultaneously, the locking mechanism at the top of the support frame engages with the locking holes on the folding stacking mechanism, ensuring the folded boom is securely locked to the support frame during equipment relocation or movement. This effectively suppresses boom swaying caused by complex road conditions, significantly reducing the impact load on the drive cylinders, extending the service life of key components such as the cylinders, and improving the reliability and safety of the equipment.

[0047] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0048] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0049] 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.

[0050] Figure 1 This is a schematic diagram of the structure of a container stacker provided in an embodiment of this disclosure;

[0051] Figure 2 This is a schematic diagram showing the state of a container stacker crane during lifting, as provided in an embodiment of this disclosure.

[0052] Figure 3 This is a schematic diagram showing the state of a container stacker crane when stacked, as provided in an embodiment of this disclosure.

[0053] Figure 4 This is a schematic diagram of the structure of the clamping component provided in the embodiments of this disclosure;

[0054] Figure 5 is a cross-sectional view of the clamping component provided in an embodiment of this disclosure;

[0055] Figure 6 A flowchart illustrating the working method of the container stacker crane provided in this embodiment of the present disclosure when it is not in operation;

[0056] Figure 7 A flowchart illustrating the working method of the container stacker crane provided in this embodiment of the disclosure.

[0057] In the diagram: 100, chassis; 200, support frame; 210, clamping component; 211, jacking cylinder; 212, connecting plate; 213, piston rod; 213a, telescopic groove; 213b, return spring; 213c, limit flange; 213d, compartment door; 213e, abutment rod; 214, jacking shaft; 215, drive guide rod; 215a, ball bearing; 216, connecting ring; 300, folding stacking mechanism; 310, locking hole; 311, abutment curved surface; 320, basic boom; 330, working boom; 340, lifting device. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions 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.

[0059] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0060] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0061] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0062] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0063] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0064] Research has revealed that to optimize the space occupied by reach stackers and forklifts, a folding cantilever structure is used. In non-operating conditions, the boom of the folding lifting and stacking mechanism is retracted to reduce the overall size of the machine. However, due to the requirements of lifting and stacking operations, the cantilever is relatively long, resulting in a large mass and inertia. During equipment movement or relocation, especially in complex road conditions common in ports and storage yards, the chassis experiences continuous vibration and impact. These vibrations are transmitted to the folded boom placed on the support frame, causing severe relative swaying between the boom and the support frame. This swaying not only generates significant noise but, more seriously, creates repeated and substantial impact loads on the hinge points of the hydraulic cylinders connecting and driving the boom. Continuous impact significantly accelerates the wear of the cylinder seals, leading to cylinder leaks, reduced pressure holding capacity, and even cylinder rod bending or internal damage.

[0065] Based on the above research, this disclosure provides a container stacker crane and its operating method. By integrating a reach stacker and a forklift into a single device using a folding stacking mechanism, it effectively reduces the number of devices and overall space requirements. The folded boom is compactly stored on the chassis, minimizing the overall size when not in operation, making it particularly suitable for space-constrained environments such as ports and container yards. This integrated design not only reduces equipment purchase and maintenance costs but also alleviates site congestion and improves operational efficiency. Furthermore, the interlocking mechanism between the locking components at the top of the support frame and the locking holes on the folding stacking mechanism securely locks the folded boom to the support frame during equipment relocation or movement. This effectively suppresses boom swaying caused by complex road conditions, significantly reducing the impact load on the drive cylinders, extending the service life of key components such as the cylinders, and improving the reliability and safety of the equipment.

[0066] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0067] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0068] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0069] Please see Figure 1 and Figure 2At least one embodiment provides a container stacker crane, comprising: a frame 100; a support frame 200 disposed on the frame 100, and a shock-absorbing pad disposed on the top of the support frame 200; and a folding stacking mechanism 300 disposed above the frame 100, with one end of the folding stacking mechanism 300 disposed on the frame 100 and the other end supported by the support frame 200; wherein, a clamping member 210 is disposed on the top of the support frame 200; and the folding stacking mechanism 300 and the clamping member 210 are connected. A locking hole 310 is provided at the adapter location; when the folding stacking mechanism 300 is placed on the support frame 200, the folding stacking mechanism 300 is fixed to the support frame 200 by the insertion and engagement of the locking member 210 with the locking hole 310, preventing the folding stacking mechanism 300 from shaking during the operation of the vehicle frame 100; when the folding stacking mechanism 300 is in operation, the insertion and engagement of the locking member 210 with the locking hole 310 is released, and the folding range of the folding stacking mechanism 300 is adjusted by the push cylinder to realize container lifting (e.g. Figure 2 (as shown) or stacked (as shown) Figure 3 (As shown).

[0070] By integrating a reach stacker and a forklift into a single unit using a folding lifting and stacking mechanism, the number of devices and overall space occupied are effectively reduced. The folded boom is compactly stored on the chassis, minimizing the overall size of the machine when not in operation, making it particularly suitable for space-constrained environments such as ports and storage yards. This integrated design not only reduces equipment purchase and maintenance costs but also alleviates site congestion and improves operational efficiency. Furthermore, the engagement of the locking element 210 on the top of the support frame 200 with the locking hole 310 on the folding lifting and stacking mechanism 300 securely locks the folded boom to the support frame 200 during equipment relocation or movement. This effectively suppresses boom swaying caused by complex road conditions, significantly reducing the impact load on the drive cylinders, extending the service life of key components such as the cylinders, and improving the reliability and safety of the equipment.

[0071] Please see Figure 1 and Figure 2 The folding stacking mechanism 300 includes: a basic arm 320, a working arm 330, and a spreader 340; one end of the basic arm 320 is rotatably connected to the frame 100 and driven by a first hydraulic cylinder; one end of the working arm 330 is rotatably connected to the other end of the basic arm 320 and driven by a second hydraulic cylinder; the spreader 340 is disposed at the other end of the working arm 330; when the container stacking machine is not in operation, the working arm 330 and the basic arm 320 are folded and stored on the frame 100, and the working arm 330 with a locking hole 310 is inserted and fixed by the clamping member 210 of the support frame 200.

[0072] By folding the basic boom 320 and the working boom 330 layer by layer and storing them on the frame 100, and using the locking device 210 on the support frame 200 to directly insert and fix the working boom 330 with the locking hole 310, precise locking of the working boom 330 is achieved. This design ensures the stability of the center of gravity of the entire boom system after folding, effectively suppressing swaying at the most critical points and improving shock absorption and impact resistance.

[0073] Meanwhile, the folded boom is compactly stored, minimizing the height of the equipment when not in operation, making it particularly suitable for ports and yards with limited space. Moreover, the folding lifting and stacking mechanism allows for a large forward reach when lifting containers. When stored, the overall size is lower than that of forklifts in related technologies, while the length and height are the same as those of reach stackers, without adding extra dimensions. It can directly replace forklifts and reach stackers in related technologies.

[0074] Please see Figure 4 and Figure 5 The clamping component 210 includes: a push cylinder 211, which is fixedly mounted on the support frame 200 via a connecting plate 212; and a push shaft 214, which is mounted on the piston rod 213 of the push cylinder 211. When the push cylinder 211 is working, the push shaft 214 is pushed into the clamping hole 310. Using the push cylinder 211 as a power source enables automated and remote control of the insertion and removal of the clamping component 210. Simultaneously, the push shaft 214, as an actuating component, provides a robust and reliable insertion and locking method. Compared to traditional methods such as manual pins, it offers greater locking force and faster response, ensuring a secure lock before equipment startup, greatly improving the efficiency and reliability of equipment relocation preparation.

[0075] Please continue reading. Figure 3 and Figure 4 The piston rod 213 of the push cylinder 211 is provided with a telescopic groove 213a; one end of the push shaft 214 is elastically connected to the telescopic groove 213a by a return spring 213b; the piston rod 213 is provided with a drive guide rod 215 radially toward the push shaft 214; the end of the drive guide rod 215 extends into the spiral groove of the push shaft 214.

[0076] When the push cylinder 211 is working, it pushes the push shaft 214 toward the retaining hole 310. When foreign objects accumulate in the retaining hole 310, preventing the push shaft 214 from being inserted further into the retaining hole 310, the push cylinder 211 continues to push the piston rod 213 to move, so that the push shaft 214 squeezes the return spring 213b, causing the drive guide rod 215 to drive the push shaft 214 to rotate, thereby causing the push shaft 214 to rotate and clean the foreign objects through the spiral groove, so that the push shaft 214 can continue to be inserted toward the retaining hole 310.

[0077] Because the working environment of container stacker cranes is relatively harsh, foreign objects can easily accumulate in the clamping hole 310. By setting up a drive guide rod 215 and a return spring 213b, when foreign objects such as mud, sand, and iron filings accumulate in the clamping hole 310 due to long-term operation in harsh environments such as ports and storage yards, the push shaft 214 can rotate under the action of the return spring 213b and the spiral groove. This allows the foreign objects to be cleared through the spiral groove, enabling the push shaft 214 to continue to insert into the clamping hole 310.

[0078] Please see Figure 1 and Figure 4 The end of the locking hole 310 extends outward to form a retaining curved surface 311. When the piston rod 213 of the push cylinder 211 pushes the drive guide rod 215 to abut against the retaining curved surface 311, a secondary lock is formed. At the same time, the end of the drive guide rod 215 away from the push shaft 214 retracts inward to abut against the push shaft 214, thus locking the retaining shaft. By setting the retaining curved surface 311, after the push shaft 214 has completed its initial insertion, the drive guide rod 215 can abut against the curved surface to form a secondary lock, which greatly enhances the rigidity and stability of the lock. At the same time, the push shaft 214 can be locked by the drive guide rod 215, increasing the support points of the push shaft 214 and reducing the deformation of the push shaft 214.

[0079] Please see Figure 4 and Figure 5 The drive guide rod 215, at one end away from the push shaft 214, is provided with a ball bearing 215a radially inward; the ball bearing 215a is disposed within the spiral groove. By changing the sliding friction between the drive guide rod 215 and the spiral groove to rolling friction, the frictional force between them is reduced, making the push shaft 214 rotate and clear obstacles more smoothly under the action of the return spring 213b.

[0080] To facilitate the maintenance of the clamping component 210, the drive guide rod 215 is mounted on the connecting ring 216; the connecting ring 216 is sleeved on the piston rod 213, and the end of the piston rod 213 is provided with a limiting flange 213c; the piston rod 213 is provided with a door 213d, and the door 213d is provided with a retaining rod 213e; when the door 213d is closed, the retaining rod 213e abuts against the connecting ring 216; when the door 213d is opened, the return spring 213b in the telescopic groove 213a is exposed, and the abutment between the retaining rod 213e and the connecting ring 216 is released. By integrating a reach stacker and a stacker into one device through a folding stacker mechanism, the number of devices and the overall space occupied are effectively reduced. The folded boom is compactly stored on the chassis, minimizing the overall size when not in operation, making it particularly suitable for spaces with limited areas such as ports and yards. This integrated design not only reduces equipment purchase and maintenance costs but also alleviates site congestion and improves operational efficiency. Simultaneously, the interlocking mechanism between the clamping components at the top of the support frame and the locking holes on the folding hoisting mechanism securely locks the folded boom to the support frame during equipment relocation or movement. This effectively suppresses boom swaying caused by complex road conditions, significantly reducing the impact load on the drive cylinders, extending the service life of key components such as the cylinders, and improving the reliability and safety of the equipment.

[0081] To increase the working range of the container stacker crane, the basic boom 320 and / or the working boom 330 are telescopic booms. The telescopic boom structure significantly expands its working range without increasing the overall dimensions of the equipment when it is stowed, enhancing its adaptability to different operating scenarios.

[0082] At least one embodiment provides a working method for a container stacker as described above. By engaging the locking member 210 on the top of the support frame 200 with the locking hole 310 on the folding stacker mechanism 300, the folded boom can be firmly locked onto the support frame 200 when the equipment is moved or transferred. This effectively suppresses boom swaying caused by complex road conditions, thereby significantly reducing the impact load on the drive cylinder caused by swaying, extending the service life of key components such as the cylinder, and improving the reliability and safety of the equipment.

[0083] Please see Figure 6 When the container stacker crane is not in operation, the operating method includes:

[0084] S110: Control the folding stacking mechanism 300 to be placed on the support frame 200;

[0085] S120: The folding stacking mechanism 300 is placed and fixed on the support frame 200 by the clamping member 210.

[0086] Please see Figure 7 When the container stacker crane is in operation, the operating method includes:

[0087] S210: Release the engagement between the locking element 210 and the locking hole 310;

[0088] S220: Adjust the folding lifting and stacking mechanism 300 to realize container lifting and stacking operations.

[0089] In summary, the present invention provides a container stacker crane and its operating method. The container stacker crane includes: a frame 100; a support frame 200 mounted on the frame 100, with a shock-absorbing pad on the top of the support frame 200; and a folding stacking mechanism 300 mounted above the frame 100, with one end of the folding stacking mechanism 300 mounted on the frame 100 and the other end supported by the support frame 200. The support frame 200 has a clamping member 210 on its top. The folding stacking mechanism 300... A locking hole 310 is provided at the fitting point of the clamping member 210; when the folding lifting and stacking mechanism 300 is placed on the support frame 200, the folding lifting and stacking mechanism 300 is fixed to the support frame 200 by the insertion and engagement of the clamping member 210 and the locking hole 310, so as to prevent the folding lifting and stacking mechanism 300 from shaking when the frame 100 is running; when the folding lifting and stacking mechanism 300 is working, the insertion and engagement of the clamping member 210 and the locking hole 310 is released, and the folding range of the folding lifting and stacking mechanism 300 is adjusted by the push cylinder to realize container lifting or stacking. By engaging the clamping part 210 on the top of the support frame 200 with the locking hole 310 on the folding hoisting mechanism 300, the folded boom can be firmly locked onto the support frame 200 when the equipment is transferred or moved. This effectively suppresses boom swaying caused by complex road conditions, thereby significantly reducing the impact load on the drive cylinder caused by swaying, extending the service life of key components such as the cylinder, and improving the reliability and safety of the equipment.

[0090] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0091] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0092] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0093] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0094] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A container stacker crane, characterized in that, include: Frame (100); A support frame (200) is mounted on the vehicle frame (100), and a shock-absorbing pad is provided on the top of the support frame (200); A foldable stacking mechanism (300) is disposed above the vehicle frame (100), with one end of the foldable stacking mechanism (300) disposed on the vehicle frame (100) and the other end supported by the support frame (200); The top of the support frame (200) is provided with a clamping element (210). The foldable stacking mechanism (300) and the clamping member (210) are provided with a locking hole (310). When the foldable stacking mechanism (300) is placed on the support frame (200), the foldable stacking mechanism (300) is fixed to the support frame (200) by the insertion and engagement of the clamping member (210) and the locking hole (310), thereby suppressing the foldable stacking mechanism (300) from shaking during the operation of the frame (100). When the folding stacking mechanism (300) is working, the locking part (210) is released from the insertion and engagement of the locking hole (310), and the folding range of the folding stacking mechanism (300) is adjusted by the top push cylinder to realize container lifting or stacking.

2. The container stacker crane as described in claim 1, characterized in that, The foldable stacking mechanism (300) includes: The basic boom (320), the working boom (330), and the lifting gear (340); One end of the basic arm (320) is rotatably connected to the frame (100) and is driven by the first hydraulic cylinder; One end of the working arm (330) is rotatably connected to the other end of the basic arm (320) and is driven by a second hydraulic cylinder; The lifting device (340) is located at the other end of the working arm (330); When the container stacker is not in operation, the working arm (330) and the basic arm (320) are folded and stored on the frame (100), and the working arm (330) with the locking hole (310) is inserted and fixed by the clamping part (210) of the support frame (200).

3. The container stacker crane as described in claim 2, characterized in that, The clamping element (210) includes: The push cylinder (211) is fixedly mounted on the support frame (200) via a connecting plate (212); The push shaft (214) is mounted on the piston rod (213) of the push cylinder (211). When the push cylinder (211) is working, the push shaft (214) is pushed into the retaining hole (310).

4. The container stacker crane as described in claim 3, characterized in that, The piston rod (213) of the push cylinder (211) is provided with a telescopic groove (213a). One end of the push shaft (214) is elastically connected to the telescopic groove (213a) via a return spring (213b); The piston rod (213) is provided with a drive guide rod (215) radially toward the push shaft (214). The end of the drive guide rod (215) extends into the spiral groove of the push shaft (214).

5. The container stacker crane as described in claim 4, characterized in that, When the push cylinder (211) is working, it pushes the push shaft (214) toward the retaining hole (310). When foreign objects accumulate in the retaining hole (310) and the push shaft (214) cannot continue to be inserted into the retaining hole (310), the push cylinder (211) continues to push the piston rod (213) to move, so that the push shaft (214) squeezes the return spring (213b), so that the drive guide rod (215) drives the push shaft (214) to rotate, thereby causing the push shaft (214) to rotate, so as to clean the foreign objects through the spiral groove, so that the push shaft (214) can continue to be inserted toward the retaining hole (310).

6. The container stacker crane as described in claim 4, characterized in that, The end of the card hole (310) extends outward to form a support surface (311). When the piston rod (213) of the push cylinder (211) pushes the drive guide rod (215) to abut against the abutting surface (311), a secondary lock is formed. At the same time, the end of the drive guide rod (215) away from the push shaft (214) retracts inward to abut against the push shaft (214), thus locking the abutting shaft.

7. The container stacker crane as described in claim 4, characterized in that, The drive guide rod (215) is provided with a ball bearing (215a) radially inward at one end away from the push shaft (214). The ball (215a) is disposed within the spiral groove.

8. The container stacker crane as described in claim 4, characterized in that, The drive guide rod (215) is mounted on the connecting ring (216); The connecting ring (216) is sleeved on the piston rod (213), and the end of the piston rod (213) is provided with a limiting flange (213c). The piston rod (213) is provided with a chamber door (213d), and the chamber door (213d) is provided with a retaining rod (213e). When the door (213d) is closed, the abutment rod (213e) abuts against the connecting ring (216); When the door (213d) is opened, the return spring (213b) in the telescopic groove (213a) is exposed, and the abutment between the abutment rod (213e) and the connecting ring (216) is released.

9. The container stacker crane as described in claim 2, characterized in that, The base arm (320) and / or the working arm (330) are telescopic rods.

10. A method of operating a container stacker crane as described in any one of claims 1-9, characterized in that, When the container stacker crane is not in operation, the operating method includes: The control folding stacking mechanism (300) is placed on the support frame (200); The folding stacking mechanism (300) is placed and fixed on the support frame (200) by the clamping device (210); When the container stacker crane is in operation, the operating method includes: Release the engagement between the locking element (210) and the locking hole (310); Adjust the folding stacking mechanism (300) to perform stacking operations on the containers.

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