Lifting platform and stacker

Abstract

The application relates to the technical field of parking auxiliary equipment, and provides a lifting platform and a stacker. The lifting platform comprises a platform body, two sides of the platform body are used for connecting a lifting device, a leveling mechanism is arranged at least at one end of the platform body and is connected with the bottom of the platform body to be docked with a parking platform, the leveling mechanism has a movable piece which can be extended outward or withdrawn inward relative to the platform body, is used for being docked with a corresponding parking platform, and fills part of the gap between the platform body and the parking platform. According to the technical scheme, the small-sized leveling mechanism is arranged at the position close to one end of the bottom of the platform body, the overall height size of the lifting platform is correspondingly reduced, the volume and weight of the lifting platform are correspondingly reduced, when the lifting platform is applied to the stacker, the civil engineering quantity of installation and construction is reduced, the equipment cost, the construction cost and the use cost in the later period can be correspondingly reduced.

Description

Technical Field

[0001] This application relates to the field of parking assistance equipment technology, specifically to a lifting platform and a stacker crane. Background Technology

[0002] Currently, parking lots using automated parking systems typically employ vehicle stacker cranes for lifting and stacking vehicles. Existing stacker cranes for parking lots usually have an integrated leveling mechanism at the top of the lifting platform for docking with the parking platform on the target floor. However, the structural design and layout of these existing leveling mechanisms have flaws, resulting in a large overall height dimension of the lifting platform. This reduces lifting space, impacts handling efficiency, and increases equipment weight and volume. Consequently, the amount of civil engineering work required for stacker crane installation and construction increases, as does energy consumption during operation, leading to higher construction, equipment, and operating costs. Utility Model Content

[0003] In order to address the problems of unreasonable structure and layout, limited lifting space, large size and weight of the leveling mechanism of the stacker crane used in parking lots, which leads to increased civil engineering work and related costs, this application provides a lifting platform and a stacker crane.

[0004] An embodiment of the first aspect of the technical solution of this application provides a lifting platform, including: a platform body for carrying a vehicle, and two sides of the platform body in a first horizontal direction for connecting lifting devices; a leveling mechanism, which is disposed at at least one end of the platform body in a second horizontal direction and connected to the bottom of the platform body, the second horizontal direction being perpendicular to the first horizontal direction, the leveling mechanism having a movable member, and the movable member being able to extend outward or retract inward relative to the platform body, the extended portion of the movable member being used to dock with a corresponding parking platform and fill part of the gap between the platform body and the parking platform.

[0005] In a further embodiment of this application, the leveling mechanism includes: a mounting housing connected to the bottom of the platform body, and the mounting housing having an opening at one end facing outward from the platform body in a second horizontal direction; a leveling drive mechanism disposed in the mounting housing; a movable member disposed in the mounting housing near the opening; and a leveling transmission mechanism disposed in the mounting housing, and the leveling transmission mechanism being drively connected to the leveling drive mechanism and the corresponding movable member, so as to drive the corresponding movable member to extend outward or retract inward under the drive of the leveling drive mechanism.

[0006] In a further embodiment of this application, the movable component includes: a swing arm, which is rotatably connected to the mounting housing and is capable of horizontally swinging relative to the mounting housing. The swing arm has an outer end and an inner end that are disposed opposite to each other. The inner end of the swing arm is rotatably connected to a leveling transmission mechanism so as to rotate under the drive of the leveling transmission mechanism; and a docking plate, which is connected to the top of the outer end of the swing arm and protrudes outward from the outer end. The docking plate is used to dock with the slot of the corresponding parking platform.

[0007] In a further embodiment of this application, the movable component further includes a roller mechanism, which is connected to the outer end of the swing arm and located below the docking plate. The roller mechanism is used to form a rolling engagement with the parking platform when the outer end of the swing arm is extended, so that the docking plate and the corresponding slot on the parking platform form a docking engagement.

[0008] In a further embodiment of this application, the leveling transmission mechanism includes: a screw extending along a first horizontal direction, one end of which is connected to the output end of the leveling drive mechanism, and the other end rotatably connected to the mounting housing; the screw being able to rotate under the drive of the leveling drive mechanism; a nut block having a threaded hole extending along the first horizontal direction; the nut block being threadedly connected to the corresponding screw and being able to move along the first horizontal direction during the rotation of the screw; and a push rod having one end rotatably connected to the corresponding nut block and the other end rotatably connected to a corresponding movable part; the push rod being able to swing relative to the mounting housing under the drive of the corresponding nut block, so that the movable part extends outward or retracts inward.

[0009] In a further embodiment of this application, the leveling transmission mechanism further includes: a guide rod, wherein each screw has a guide rod on at least one side in the second horizontal direction, the guide rod is arranged parallel to the corresponding screw and is fixedly connected to the mounting housing; wherein the nut block has a sliding hole corresponding to the guide rod, the guide rod passes through the sliding hole, and the nut block can slide along the guide rod.

[0010] In a further embodiment of this application, there are two moving parts and two leveling transmission mechanisms. The two moving parts are spaced apart in the first horizontal direction, and the two leveling transmission mechanisms are located on both sides of the leveling drive mechanism in the first horizontal direction. The mounting housing has a drive chamber and two transmission chambers. In the first horizontal direction, the drive chamber is located in the middle of the mounting housing, and the two transmission chambers are located on both sides of the drive chamber. The end of the drive chamber facing the inner side of the platform body in the second horizontal direction protrudes relative to the transmission chamber. The leveling drive mechanism is located in the drive chamber along the second horizontal direction, and the two leveling transmission mechanisms are located in the two transmission chambers.

[0011] In a further embodiment of this application, the platform body includes: a platform support member, which extends along a first horizontal direction and whose two ends are respectively used to connect different lifting components of the lifting device; and a platform plate, which is arranged along a second horizontal direction and connected to the platform support member, and is used to carry the vehicle.

[0012] An embodiment of the second aspect of this application provides a stacker crane, comprising: a frame assembly, at least a portion of which is arranged along the height direction, and a base mounting groove on the frame base of the frame assembly; a lifting device, comprising at least two sets of first drive mechanisms, at least two sets of lifting components, and a first synchronization mechanism; at least two sets of lifting components are spaced apart in a first horizontal direction and are all connected to the frame assembly, each first drive mechanism is drivenly connected to one of the lifting components, the first synchronization mechanism is disposed in a corresponding base mounting groove, and the first synchronization mechanism is simultaneously drivenly connected to at least two sets of lifting components, so that at least two sets of lifting components can synchronously perform lifting and lowering movements along the height direction; and a lifting platform in any embodiment of the first aspect, wherein the platform body of the lifting platform is connected to at least two sets of lifting components and can synchronously perform lifting and lowering movements with at least two sets of lifting components, and when the lifting platform is lowered to the frame base, at least a portion of the platform body extends into the corresponding base mounting groove.

[0013] In a further embodiment of this application, the stacker crane further includes a horizontal movement device; the horizontal movement device includes: a track mechanism, which is disposed below the frame assembly and extends along a first horizontal direction, and the track mechanism is movably connected to the bottom of the frame assembly; and a second drive assembly, which is disposed at the bottom of the frame assembly and is used to drive the frame assembly to move along the extension direction of the track mechanism.

[0014] The beneficial effects of the above-mentioned technical solution of this application are as follows:

[0015] This application improves and optimizes the structure by adopting a miniaturized leveling mechanism and making full use of the spare space near the platform body. The leveling mechanism is set at the bottom of the platform body near one end. The leveling mechanism does not have a direct connection with the lifting device or the vehicle to be carried, thereby reducing the overall height of the lifting platform. The volume and weight of the lifting platform are also reduced accordingly. When applied to stacker cranes, it helps to reduce the amount of civil engineering work for installation and construction, and the equipment cost, construction cost and subsequent use cost can all be reduced accordingly. Attached Figure Description

[0016] Figure 1 This is a perspective view of a lifting platform in one embodiment of this application;

[0017] Figure 2This is a top view of the lifting platform in one embodiment of this application;

[0018] Figure 3 This is a front view of a lifting platform in one embodiment of this application;

[0019] Figure 4 This is a top view of the leveling mechanism and parking platform in a docking state according to one embodiment of this application;

[0020] Figure 5 This is a three-dimensional schematic diagram of the leveling mechanism and parking platform in a docking state according to one embodiment of this application;

[0021] Figure 6 This is a three-dimensional schematic diagram of a flat-layer mechanism in one embodiment of this application;

[0022] Figure 7 This is a perspective view of a portion of the structure of the flat-layer mechanism in one embodiment of this application (the top wall of the mounting housing is not shown);

[0023] Figure 8 This is a perspective view of a stacker crane according to one embodiment of this application;

[0024] Figure 9 This is a perspective view of a stacker crane in one embodiment of this application from another angle.

[0025] Figure 10 This is a front view of a stacker crane according to another embodiment of this application;

[0026] Figure 11 This is a right view of a stacker crane according to another embodiment of this application;

[0027] Figure 12 This is a top view of a stacker crane according to another embodiment of this application;

[0028] Figure 13 This is a perspective view of a lifting device in one embodiment of this application;

[0029] Figure 14 This is a front view of a lifting device in one embodiment of this application;

[0030] Figure 15 This is a partial schematic diagram of a stacker crane in one embodiment of this application.

[0031] In the above-mentioned figures, arrow F1 represents the first horizontal direction, arrow F2 represents the second horizontal direction, and arrow F3 represents the vertical direction.

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

[0033] 100 stacker cranes;

[0034] 1. Frame assembly, 11. Frame base, 111. Base mounting slot, 12. Vertical frame, 121. Guide slot;

[0035] 2 Lifting device, 21 First drive mechanism, 211 Rotary output component, 22 Lifting assembly, 221 Transmission chain mechanism, 2211 Transmission chain, 2212 Horizontal section, 2213 Vertical section, 2214 First sprocket, 2215 Second sprocket, 2216 First tension wheel, 2217 Second tension wheel, 222 Rotary input component, 23 First synchronization mechanism, 231 Rotary synchronization component;

[0036] 3 Lifting platform, 31 Platform body, 311 Platform support component, 3111 Second guide wheel mechanism, 312 Platform plate, 32 Leveling mechanism, 321 Mounting housing, 3211 Opening, 3212 Drive chamber, 3213 Transmission chamber, 322 Leveling drive mechanism, 323 Movable component, 3231 Swing arm, 3232 Docking plate, 3233 Roller mechanism, 324 Leveling transmission mechanism, 3241 Screw, 3242 Nut block, 3245 Push rod, 3246 Guide rod;

[0037] 4. Horizontal motion device; 41. Track mechanism; 42. Second drive assembly; 421. Second drive mechanism; 422. Drive wheel mechanism; 423. Second synchronization mechanism; 424. First guide wheel mechanism; 5. Parking platform; 51. Card slot. Detailed Implementation

[0038] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0039] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0040] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0041] The stacker crane described in this application can be applied to parking lots, primarily for stacking vehicles in automated parking garages. This includes stacking vehicles from the ground to a parking platform on a target floor of the automated parking garage, and retrieving vehicles from the parking platform to the ground. The stacker crane can be a horizontally moving device or a stationary device.

[0042] In the embodiments described below, for ease of description, the width direction of the stacker crane is taken as the first horizontal direction, and the length direction of the stacker crane is taken as the second horizontal direction, wherein the length direction of the stacker crane is the relative movement direction of the vehicle it carries. Further details will not be elaborated upon below.

[0043] The following describes some embodiments of the lifting platform and stacker crane provided in this application, with reference to the accompanying drawings.

[0044] An embodiment of the first aspect of this application provides a lifting platform 3, such as Figure 1 , Figure 2 , Figure 3 As shown, the lifting platform 3 includes a platform body 31 and a leveling mechanism 32. The platform body 31 is horizontally positioned to carry vehicles; in a first horizontal direction, both sides of the platform body 31 can be connected to the lifting device of a stacker crane to perform lifting movements under the drive of the lifting device. In a second horizontal direction perpendicular to the first horizontal direction, at least one end of the platform body 31 is provided with a leveling mechanism 32, which is fixedly connected to the bottom of the platform body 31; the leveling mechanism 32 is provided with a movable part 323, which can extend outward or retract inward relative to the platform body 31. When the platform body 31 is raised or lowered to align with the parking platform 5 of the target floor, as... Figure 4 and Figure 5 In the example, the movable part 323 can extend outward and dock with the corresponding parking platform 5 to position the platform body 31. At the same time, the extended part of the movable part 323 can fill part of the gap between the platform body 31 and the parking platform 5 to facilitate the movement of the vehicle between the platform body 31 and the parking platform 5.

[0045] It is understandable that with existing liftable vehicle stacking machinery, when the lifting platform is raised to the corresponding floor, it is difficult to maintain close contact with the parking platform in the horizontal direction, and a certain gap is usually maintained. In order to facilitate vehicle movement, an integral leveling mechanism is usually set on the top of the lifting platform to support the vehicle and dock with the parking platform. However, the lifting platform of the aforementioned vehicle stacking machinery forms a multi-layer structure in the vertical direction, resulting in a large vertical dimension and a corresponding increase in the overall weight and volume of the equipment.

[0046] In this embodiment, the lifting platform 3, through structural improvements and optimizations, adopts a miniaturized leveling mechanism and makes full use of the spare space near the platform body 31. The leveling mechanism 32 is set at the bottom of the platform body 31 near one end. The leveling mechanism 32 does not have direct contact with the lifting device or the vehicle to be carried, thereby reducing the overall height of the lifting platform 3. The volume and weight of the lifting platform 3 are also reduced accordingly. When applied to a stacker crane, it helps to reduce the amount of civil engineering work for installation and construction, and the equipment cost, construction cost, and subsequent use cost can all be reduced accordingly.

[0047] It should be noted that, in practical applications, a leveling mechanism 32 can be provided at one end of the platform body 31, or leveling mechanisms 32 can be provided at both opposite ends of the platform body 31. In the second horizontal direction, one or more leveling mechanisms 32 can be provided at any end of the platform body 31, depending on the specific usage requirements. Each leveling mechanism 32 can be provided with one or more movable parts 323, and the movement forms of the movable parts 323 include, but are not limited to, rotation, flipping, and sliding.

[0048] In further embodiments of this application, such as Figures 1 to 6 As shown, the leveling mechanism 32 includes a mounting housing 321, a leveling drive mechanism 322, a movable member 323, and a leveling transmission mechanism 324. The mounting housing 321 serves as the mounting base for the leveling mechanism 32 and is connected to the bottom of the platform body 31 near one end. The leveling drive mechanism 322, the movable member 323, and the leveling transmission mechanism 324 are all housed within the mounting housing 321. In the second horizontal direction, the mounting housing 321 has an opening 3211 at the end facing outward from the platform body 31. The movable member 323 is correspondingly positioned within the mounting housing 321 near the opening 3211, allowing it to extend outward through the opening 3211. The output end of the leveling drive mechanism 322 is drive-connected to the leveling transmission mechanism 324, and the leveling transmission mechanism 324 is drive-connected to the movable member 323. When the leveling drive mechanism 322 operates, it transmits power to the movable member 323 through the leveling transmission mechanism 324, driving the movable member 323 to extend outward or retract inward through the opening 3211.

[0049] With the above configuration, the leveling drive mechanism 322, the movable part 323, and the leveling transmission mechanism 324 are all located inside the mounting housing 321. The structure of the leveling mechanism 32 is more compact and occupies less space. Moreover, the setting position of the leveling mechanism 32 makes full use of the empty space below the end of the platform body 31, resulting in higher space utilization and making it easier to control the height of the lifting platform 3.

[0050] Furthermore, such as Figure 1 , Figure 6 and Figure 7 As shown, in the leveling mechanism 32, the movable component 323 specifically includes a swing arm 3231 and a docking plate 3232. The swing arm 3231 is horizontally arranged and rotatably connected to the mounting housing 321, with its rotation center extending along the height direction to allow it to swing horizontally relative to the mounting housing 321. The swing arm 3231 has an outer end and an inner end that are arranged opposite to each other. The inner end of the swing arm 3231 is rotatably connected to the leveling transmission mechanism 324 so that it can rotate under the drive of the leveling transmission mechanism 324, thereby causing the swing arm 3231 to swing around the rotation center. The outer end of the swing arm 3231 can extend outward, and the docking plate 3232 is connected to the top of the outer end of the swing arm 3231, and the docking plate 3232 protrudes outward relative to the swing arm 3231. When the leveling mechanism 32 is raised and lowered with the platform body 31 to the height aligned with the parking platform 5, as... Figure 4 and Figure 5 As shown in the diagram, the outer end of the swing arm 3231 drives the docking plate 3232 to extend outward and form a docking fit with the corresponding slot 51 on the parking platform 5.

[0051] It should be noted that the number of leveling transmission mechanisms 324 matches the number of moving parts 323, so that each leveling transmission mechanism 324 drives one moving part 323. Specifically, when multiple moving parts 323 and multiple leveling transmission mechanisms 324 are provided, for example... Figure 7 In the example, a movable part 323 and a set of leveling transmission mechanisms 324 are provided on each side of the leveling drive mechanism 322.

[0052] Furthermore, in a specific example, such as Figure 5 and Figure 7In the example, in the movable component 323, the outer end of the swing arm 3231 is also provided with a roller mechanism 3233. The roller mechanism 3233 is located below the docking plate 3232 and is rotatably connected to the swing arm 3231. When the outer end of the swing arm 3231 extends outward, the docking plate 3232 and the roller mechanism 3233 extend together and dock with the corresponding slot 51 on the parking platform 5. The docking plate 3232 extends to the top of the slot 51 to fill the gap between the platform body 31 and the parking platform 5, while the roller mechanism 3233 can form a rolling engagement with the slot 51 and extend into the slot 51 accordingly to play a positioning and guiding role during the docking process. Figure 5 In the example, a corresponding inclined structure can also be provided at the outer edge of the slot 51 of the parking platform 5, so that the roller mechanism 3233 can contact the inclined structure before entering the slot 51, and provide support and guidance for the guide wheel mechanism and the moving part 323 as a whole, so that the guide wheel mechanism and the docking plate 3232 can accurately dock with the slot 51.

[0053] In further embodiments of this application, such as Figure 6 and Figure 7 As shown, in the leveling mechanism 32, the leveling transmission mechanism 324 specifically includes a screw 3241, a nut block 3242, and a push rod 3245. The screw 3241 extends along a first horizontal direction, one end of which is connected to the output end of the leveling drive mechanism 322, and the other end is rotatably connected to the mounting housing 321; when the leveling drive mechanism 322 outputs torque, it can drive the screw 3241 to rotate. The nut block 3242 has a threaded hole extending along the first horizontal direction. The nut block 3242 is fitted onto the screw rod 3241 through the threaded hole, forming a threaded engagement with the screw rod 3241. One end of the push rod 3245 is rotatably connected to the nut block 3242, and the other end of the push rod 3245 is rotatably connected to the movable part 323. When the screw rod 3241 rotates under the drive of the leveling drive mechanism 322, it can drive the nut block 3242 to move along the first horizontal direction, and through the push rod 3245, drive the movable part 323 to swing relative to the mounting housing 321, so that part of the movable part 323 can extend outward or retract inward through the opening 3211. For example... Figure 7 In the example, the main body of the movable part 323 is a swing arm 3231 that is rotatably connected to the mounting housing 321. The inner end of the swing arm 3231 is rotatably connected to the push rod 3245, which can form a multi-link structure so as to swing accordingly under the drive of the push rod 3245.

[0054] Furthermore, in a specific example, such as Figure 6 and Figure 7In the example, in the second horizontal direction, at least one side of the screw 3241 is provided with a guide rod 3246. The guide rod 3246 extends along the first horizontal direction to form a parallel state with the screw 3241. The guide rod 3246 is fixedly connected to the mounting housing 321. Correspondingly, the nut block 3242 is provided with a sliding hole corresponding to the guide rod 3246. The guide rod 3246 passes through the sliding hole so that the nut block 3242 can slide along the guide rod 3246. When the nut block 3242 slides along the first horizontal direction, it plays a guiding and limiting role. This can keep the nut block 3242 in linear motion and prevent the nut block 3242 from rotating under the action of friction, thereby improving the stability of the nut block 3242 during the movement process.

[0055] Furthermore, in a specific example, such as Figures 5 to 7 In the example shown, the mounting housing 321 is divided into a drive chamber 3212 and two transmission chambers 3213. In the first horizontal direction, the drive chamber 3212 is located in the middle of the mounting housing 321, and the two transmission chambers 3213 are located on both sides of the drive chamber 3212. Accordingly, there are two moving parts 323 and two flattening transmission mechanisms 324. The flattening drive mechanism 322 is disposed in the drive chamber 3212, and the two flattening transmission mechanisms 324 are disposed in the transmission chambers 3213 on both sides. A channel for connection is provided between the drive chamber 3212 and the transmission chambers 3213. The two moving parts 323 are respectively disposed in the two transmission chambers 3213 to connect with the corresponding flattening transmission mechanism 324. In this design, the drive chamber 3212 protrudes from the transmission chamber 3213 at one end facing the inner side of the platform body 31 in the second horizontal direction, so that the mounting housing 321 forms a T-shaped structure to meet the installation requirements of the leveling drive mechanism 322. Meanwhile, since the leveling transmission mechanism 324 mainly extends along the first horizontal direction, its space requirement in the second horizontal direction is relatively less than that of the leveling drive mechanism 322. Therefore, in the second horizontal direction, the size of the transmission chamber 3213 is smaller than that of the drive chamber 3212, further reducing the weight and volume of the leveling mechanism 32. With this configuration, one leveling drive mechanism 322 can simultaneously drive two moving parts 323 to swing accordingly, enabling two-point docking with the parking platform 5.

[0056] In further embodiments of this application, such as Figures 1 to 3In the example shown, the platform body 31 specifically includes a platform support 311 and a platform plate 312. The platform support 311 extends along a first horizontal direction, and the platform plate 312 is disposed on the platform support 311 along a second horizontal direction and is fixedly connected to the platform support 311. Both ends of the platform support 311 in the first horizontal direction can be connected to the lifting device of a stacker crane, and the platform plate 312 is used to carry vehicles. The platform support 311 can move up and down under the drive of the lifting device to realize the lifting and transporting operation of the vehicles carried by the platform plate 312. It should be noted that one or more platform supports 311 can be provided in the second horizontal direction as needed, for example... Figure 1 The diagram shows two platform supports 311, spaced apart to connect with different vertical moving parts on the lifting device. One or more platform plates 312 may also be provided in the first horizontal direction, for example... Figure 1 The two shown can be configured according to actual usage needs.

[0057] An embodiment of the second aspect of this application provides a stacker crane 100, such as... Figure 8 and Figure 9As shown, the stacker crane 100 includes a frame assembly 1, a lifting device 2, and a lifting platform 3 as described in any of the embodiments of the first aspect. The frame assembly 1 serves as the mounting base of the stacker crane 100, and the lifting device 2 is mounted on the frame assembly 1. A base mounting groove 111 is provided on the frame base 11 of the frame assembly 1, and at least a portion of the frame assembly 1 is arranged along the height direction to provide sufficient space for the lifting movement of the lifting platform 3. The lifting device 2 includes a first drive mechanism 21, a lifting component 22, and a first synchronization mechanism 23. There are two sets of the first drive mechanism 21 and the lifting component 22. The lifting components 22 are spaced apart in the first horizontal direction and are connected to the frame assembly 1. Each lifting component 22 is connected to a corresponding first drive mechanism 21 for transmission, so that the first drive mechanism 21 drives the corresponding lifting component 22 to perform lifting movement. The first synchronization mechanism 23 is spaced apart from the first drive mechanism 21 in the second direction to make reasonable use of the space in the second direction. The first synchronization mechanism 23 is also conventionally connected to both sets of lifting components 22. The lifting platform 3 is used to carry vehicles. The lifting platform 3 is connected to two sets of lifting components 22 to move synchronously with the lifting components 22, thereby realizing the lifting and transporting of the carried vehicles. When the two sets of lifting components 22 move, the first synchronization mechanism 23 ensures that the movements of the two sets of lifting components 22 remain synchronized, thus keeping the lifting platform 3 horizontal during the lifting process and preventing tilting. When the lifting platform 3 descends to the frame base 11 of the frame assembly 1 (i.e., the lowest position of the lifting platform 3), at least a portion of the platform body 31 of the lifting platform 3 can extend into the base mounting groove 111 on the frame base 11, thereby reducing the dimensions of the frame base 11 and the lifting platform 3 in the height direction.

[0058] In this embodiment, the stacker crane 100, through structural improvements and optimizations, provides independent first drive mechanisms 21 for lifting components 22 on both sides of the lifting platform 3, and simultaneously connects to the lifting components 22 on both sides through a first synchronization mechanism 23, so that the lifting components 22 can move up and down synchronously, thereby improving the stability of the lifting components 22 and the lifting platform 3. Moreover, the base mounting slot 111 on the frame base 11 can accommodate at least part of the structure of the first synchronization mechanism 23 and the platform body 31, thereby reducing the dimensions in the height direction, resulting in high space utilization, reducing the overall weight and volume of the equipment, which is beneficial to reducing space occupation and the amount of engineering work during installation and construction. Energy consumption during use is also reduced, which is beneficial to reducing equipment costs, construction costs and operating costs.

[0059] It should be noted that in practical applications, the number of lifting components 22 is not limited to two, and other numbers can be set for two as needed, and the number of first drive mechanisms 21 will also increase accordingly.

[0060] Furthermore, such as Figure 10 , Figure 11 and Figure 12 In the example, the stacker crane 100 also includes a horizontal movement device 4, which includes a track mechanism 41 and a second drive assembly 42. The track mechanism 41 is disposed below the frame assembly 1 and is movably connected to the bottom of the frame assembly 1; the track mechanism 41 extends along a first horizontal direction so that the frame assembly 1, the lifting device 2, and the lifting platform 3 can move as a whole along the first horizontal direction, so that the lifting platform 3 can be aligned with parking platforms at different positions in the first horizontal direction. There are two track mechanisms 41 and four sets of second drive assemblies 42. The two track mechanisms 41 are spaced apart in the second horizontal direction and are located near both ends of the frame assembly 1, with a set of second drive assemblies 42 at each end of each track mechanism 41.

[0061] Specifically, the second drive assembly 42 includes a second drive mechanism 421, a drive wheel mechanism 422, a second synchronization mechanism 423, and a first guide wheel mechanism 424. The drive wheel mechanism 422 is located above the track mechanism 41, with its axis oriented along a second horizontal direction. The drive wheel mechanism 422 rolls into contact with the top surface of the track mechanism 41. The drive wheel mechanism 422 is rotatably connected to the frame assembly 1, so that when the drive wheel mechanism 422 rotates relative to the track mechanism 41, it can drive the frame assembly 1 to move along the extension direction of the track mechanism 41, i.e., along the first horizontal direction. The second drive mechanism 421 is drive-transmitted to the drive wheel mechanism 422 to output torque and provide power to the drive wheel mechanism 422. The second synchronization mechanism 423 is disposed between the two drive wheel mechanisms 422 along the second horizontal direction, and its two ends are respectively connected to the corresponding second drive mechanism 421 and drive wheel mechanism 422 for transmission. This allows the second synchronization mechanism 423 to be driven to rotate simultaneously when the second drive mechanism 421 outputs torque. The second synchronization mechanism 423 also keeps the rotational speeds of the two drive wheel mechanisms 422 in the second horizontal direction synchronized (i.e., the speeds are the same or the speed difference is kept within an acceptable small range), thus preventing drive wheel slippage when moving relative to the track mechanism 41. The first guide wheel mechanism 424 is disposed on one side of the track mechanism 41 in the second horizontal direction and is rotatably connected to the frame assembly 1. The first guide wheel mechanism 424 rolls with the side wall of the corresponding track mechanism 41, so that when the frame assembly 1 moves along the track mechanism 41 under the drive of the drive wheel mechanism 422, the first guide wheel mechanism 424 can move accordingly to guide the frame assembly 1. The second drive mechanism 421 can specifically be a drive motor.

[0062] It should be noted that in the above embodiments, the number of track mechanisms 41 and second drive components 42 can be set according to actual usage needs. Each drive wheel mechanism 422 may include one or more drive wheels, or may include both drive wheels and driven wheels. When multiple drive wheels are provided, they can be connected by chain drive. Additionally, first guide wheel mechanisms 424 can be provided on both sides of the track mechanism 41, so that the first guide wheel mechanisms 424 on both sides can clamp the side walls of the track mechanism 41, simultaneously providing guidance and limiting functions.

[0063] In addition, in practical applications, depending on the specific application scenario, a corresponding idler wheel mechanism can be set at the bottom of the frame component 1 to achieve horizontal movement, replacing the horizontal movement device 4 in the above embodiment, so that the stacker crane 100 forms an AGV device with lifting function and has better movement flexibility.

[0064] Furthermore, in a specific example, such as Figure 8 , Figure 13 and Figure 14 As shown, the lifting assembly 22 includes two transmission chain mechanisms 221 and two rotary input components 222. The two transmission chain mechanisms 221 are symmetrically arranged on both sides of the first drive mechanism 21 in the second horizontal direction. Each transmission chain mechanism 221 has a portion extending along the height direction, and the lifting platform 3 is fixedly connected to the portion extending along the height direction of the transmission chain mechanism 221, so that when the transmission chain mechanism 221 is running, it drives the lifting platform 3 to perform corresponding lifting movements along the height direction. The two lifting assemblies 22 include a total of four transmission chain mechanisms 221, which are respectively connected to positions near the four corners of the lifting platform 3, enabling a relatively uniform force distribution on the lifting platform 3 and higher stability during lifting movements.

[0065] Specifically, the transmission chain mechanism 221 includes a transmission chain 2211, a first sprocket 2214, a second sprocket 2215, a first tensioning pulley 2216, and a second tensioning pulley 2217. The transmission chain 2211 is a closed structure with its ends connected, and it is L-shaped, that is, a part of the transmission chain 2211 is arranged in the horizontal direction to form a horizontal segment 2212, and the other part of the transmission chain 2211 is arranged in the vertical direction to form a vertical segment 2213; the lifting platform 3 is connected to the vertical segment 2213 of the transmission chain 2211 so as to perform lifting and lowering movements as the vertical segment 2213 moves. The first sprocket 2214 and the second sprocket 2215 are both located inside the transmission chain 2211, that is, the transmission chain 2211 is wound around the outside of the first sprocket 2214 and the second sprocket 2215 to form mutual meshing; the first sprocket 2214 meshes with the end of the horizontal section 2212 near the first drive mechanism 21 and is rotatably connected to the frame assembly 1 so as to be able to rotate relative to the frame assembly 1, and a rotation input component 222 is coaxially connected to the first sprocket 2214; the second sprocket 2215 meshes with the top of the vertical section 2213 and is rotatably connected to the corresponding position on the frame assembly 1 so as to be able to rotate relative to the frame assembly 1; the vertical section 2213 is connected to the lifting platform 3 on the side away from the first drive mechanism 21 in the second horizontal direction so that the connection point is located outside the frame assembly 1, which facilitates connection and fixation, and also prevents the connection part of the lifting platform 3 from interfering with other structures on the frame assembly 1. In the second horizontal direction, the vertical segment 2213 is located at the end of the horizontal segment 2212 that is far away from the first drive mechanism 21, so that the connection point between the vertical segment 2213 and the lifting platform 3 is relatively far away from the first drive mechanism 21. This not only makes the force on the lifting platform 3 more dispersed, but also makes reasonable use of space for connection and assembly, avoiding interference with other structures or components.

[0066] like Figure 13 and Figure 14In the example, since the drive chain 2211 is connected end to end to form a closed structure, both the horizontal segment 2212 and the vertical segment 2213 include two opposing parts. That is, the parts wrapped around both sides of the first sprocket 2214 are all horizontal segments 2212, while the parts wrapped around both sides of the second sprocket 2215 are all vertical segments 2213. The first tension wheel 2216 and the second tension wheel 2217 are both located at the connection between the vertical segment 2213 and the horizontal segment 2212, and are both rotatably connected to the frame assembly 1. The first tension wheel 2216 is located inside the drive chain 2211 and meshes with the connection between the horizontal segment 2212 and the vertical segment 2213 on the outer side of the drive chain 2211. Correspondingly, the second tension wheel 2217 is located above the horizontal segment 2212 and meshes with the connection between the horizontal segment 2212 and the vertical segment 2213 on the inner side of the drive chain 2211. The first tensioning wheel 2216 and the second tensioning wheel 2217 cause the transmission chain 2211 to be wound in an L-shape so that the vertical section 2213 can always move along the height direction, while keeping the horizontal section 2212 and the vertical section 2213 of the transmission chain 2211 taut, so that the lifting movement of the lifting platform 3 remains stable.

[0067] The first drive mechanism 21 has a rotation output component 211 at its output end, and the first synchronization mechanism 23 has rotation synchronization components 231 at both ends. The rotation input components 222 connected to the first sprockets 2214 in the two transmission chain mechanisms 221 mesh with each other. Correspondingly, the rotation output component 211 of the first drive mechanism 21 meshes with one of the rotation input components 222, and the corresponding rotation synchronization component 231 on the first synchronization mechanism 23 meshes with the other rotation input component 222. This allows the output torque of the first drive mechanism 21 to be transmitted to the transmission chain mechanism 221 and the first synchronization mechanism 23 through the sequentially meshing rotation output component 211, rotation input component 222, and rotation synchronization component 231, driving the transmission chain mechanism 221 to rotate accordingly, and simultaneously driving the first synchronization mechanism 23 to rotate accordingly. The first synchronization mechanism 23 adjusts the speed difference between the two transmission chain mechanisms 221 (i.e., adjusts the speed to be the same or keeps the speed difference within an allowable small range), thereby achieving synchronous movement. Specifically, the first drive mechanism 21 can be a drive motor.

[0068] By setting the transmission chain mechanism 221 to connect with the lifting platform 3 to form a chain-driven forced lifting method, compared with the traditional counterweight stacker crane, the stacker crane of this application does not need to set an additional counterweight structure, has a compact structure, occupies less space, and is conducive to reducing the overall weight and volume of the equipment. At the same time, the lifting capacity during operation is reduced accordingly, and the operating stability and reliability of the lifting component 22 are higher.

[0069] Furthermore, in a specific example, such as Figure 1 , Figure 8 and Figure 9 In the example shown, the frame assembly 1 includes a frame base 11 and two vertical frames 12. The frame base 11 is arranged horizontally, and the two vertical frames 12 are arranged vertically and spaced apart in a first horizontal direction. Both vertical frames 12 are connected to the top of the frame base 11, so that the middle of the frame assembly 1 forms a space for the installation and lifting movement of the lifting platform 3. Each vertical frame 12 is connected to a set of lifting components 22, which are respectively connected to both sides of the lifting platform 3. In the first horizontal direction, each end of the frame base 11 is connected to a first drive mechanism 21 to drive the two lifting components 22 to move. A first synchronization mechanism 23 is located on one side of the first drive mechanism 21 and is rotatably connected to the frame base 11, allowing it to rotate relative to the frame base 11. The frame base 11 has multiple base mounting slots 111 extending in the first horizontal direction, and these slots are spaced apart in a second horizontal direction. Correspondingly, the platform body 31 of the lifting platform 3 includes two platform support members 311 and a platform plate 312 connected to the platform support members 311; the two platform support members 311 are spaced apart in the second horizontal direction and both extend horizontally in the first direction, and the platform support members 311 can extend into the corresponding base installation on the frame base 11.

[0070] Specifically, such as Figure 8 and Figure 15 In the example, in the first horizontal direction, the platform support 311 has a second guide wheel mechanism 3111 on the side opposite to the vertical frame 12 at both ends. Correspondingly, the vertical frame 12 has a guide groove 121 extending in the height direction on the side facing the second guide wheel mechanism 3111. The second guide wheel mechanism 3111 extends into the guide groove 121 and rolls with the inner wall surface of the guide groove 121 so that when the lifting platform 3 moves up and down with the lifting assembly 22, the second guide wheel mechanism 3111 rolls along the guide groove 121 to achieve guidance and limiting function.

[0071] In practical applications, the stacker crane 100 can be equipped with a corresponding controller or control system. The controller or control system is connected in communication with the lifting device 2, the horizontal movement device 4 and the driving mechanism of the leveling mechanism 32 to control the lifting movement and horizontal movement of the lifting component 22 and the leveling operation of the leveling mechanism 32.

[0072] The stacker crane 100 according to the above embodiments of this application can effectively reduce the height of the lifting platform 3 and the frame base 11, and make full use of the limited space for reasonable layout, thereby improving the utilization rate of the lifting space. The overall space occupied by the equipment is relatively small, making it suitable for application in scenarios with limited space. At the same time, it can effectively reduce the overall weight and volume of the equipment, effectively reduce the amount of civil engineering work (reduced foundation pit depth) during construction and installation, and significantly reduce equipment cost, construction cost and operating cost. Moreover, the energy consumption during use is correspondingly reduced, which can effectively improve energy utilization. In addition, the lifting component 22 adopts the forced lifting method of the transmission chain mechanism 221, which does not require additional counterweight structure, resulting in higher lifting efficiency. Corresponding synchronization mechanisms are provided between the relatively arranged lifting components 22 and between the relatively arranged second drive components 42 in the horizontal motion device 4, which can adaptively adjust the speed difference to achieve synchronous movement and make the equipment operation more stable.

[0073] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A lifting platform, characterized in that, include: The platform body is used to carry the vehicle, and the two sides of the platform body in the first horizontal direction are used to connect the lifting device. A leveling mechanism is provided at at least one end of the platform body in a second horizontal direction and connected to the bottom of the platform body. The second horizontal direction is perpendicular to the first horizontal direction. The leveling mechanism has a movable member that can extend outward or retract inward relative to the platform body. The extended portion of the movable member is used to dock with a corresponding parking platform and fill part of the gap between the platform body and the parking platform.

2. The lifting platform according to claim 1, characterized in that, The leveling mechanism includes: The mounting housing is connected to the bottom of the platform body, and the mounting housing has an opening at one end facing out of the platform body in a second horizontal direction; A leveling drive mechanism is disposed in the mounting housing; The movable component is located in the mounting housing near the opening; And a leveling transmission mechanism, which is disposed in the mounting housing and is connected to the leveling drive mechanism and the corresponding movable part in a transmission connection, so as to drive the corresponding movable part to extend outward or retract inward under the drive of the leveling drive mechanism.

3. The lifting platform according to claim 2, characterized in that, The movable component includes: A swing arm is rotatably connected to the mounting housing and is capable of horizontally swinging relative to the mounting housing. The swing arm has an outer end and an inner end that are arranged opposite to each other. The inner end of the swing arm is rotatably connected to the leveling transmission mechanism so as to rotate under the drive of the leveling transmission mechanism. A docking plate is connected to the top of the outer end of the swing arm, and the docking plate protrudes outward from the outer end. The docking plate is used to dock with the slot of the corresponding parking platform.

4. The lifting platform according to claim 3, characterized in that, The movable component also includes: A roller mechanism is connected to the outer end of the swing arm and located below the docking plate. The roller mechanism is used to form a rolling engagement with the parking platform when the outer end of the swing arm is extended, so that the docking plate and the corresponding slot on the parking platform can be docked.

5. The lifting platform according to claim 2, characterized in that, The leveling transmission mechanism includes: A screw, which extends along a first horizontal direction, with one end connected to the output end of the leveling drive mechanism and the other end rotatably connected to the mounting housing, and the screw being able to rotate under the drive of the leveling drive mechanism; A nut block having a threaded hole extending along a first horizontal direction, the nut block being threadedly connected to the corresponding screw and capable of moving along the first horizontal direction during the rotation of the screw; A push rod, one end of which is rotatably connected to the corresponding nut block, and the other end of which is rotatably connected to a corresponding movable part. The push rod can push the movable part to swing relative to the mounting housing under the drive of the corresponding nut block, so that the movable part extends outward or retracts inward.

6. The lifting platform according to claim 5, characterized in that, The leveling transmission mechanism also includes: A guide rod is provided on at least one side of each of the screws in the second horizontal direction. The guide rod is arranged parallel to the corresponding screw and is fixedly connected to the mounting housing. The nut block has a sliding hole corresponding to the guide rod, the guide rod passes through the sliding hole, and the nut block can slide along the guide rod.

7. The lifting platform according to claim 2, characterized in that, The number of the movable parts and the leveling transmission mechanism are both two. The two movable parts are spaced apart in the first horizontal direction, and the two leveling transmission mechanisms are respectively located on both sides of the leveling drive mechanism in the first horizontal direction. The mounting housing has a drive chamber and two transmission chambers; In the first horizontal direction, the drive chamber is located in the middle of the mounting housing, the two transmission chambers are located on both sides of the drive chamber, and the end of the drive chamber facing the inner side of the platform body in the second horizontal direction protrudes relative to the transmission chamber. The leveling drive mechanism is located in the drive chamber along the second horizontal direction, and the two leveling transmission mechanisms are respectively located in the two transmission chambers.

8. The lifting platform according to claim 1, characterized in that, The platform itself includes: Platform support components, all of which extend along a first horizontal direction, with each end of the platform support component being used to connect to different lifting components of the lifting device; A platform plate, which is arranged along a second horizontal direction and connected to the platform support member, is used to support vehicles.

9. A stacker crane, characterized in that, include: A frame assembly, at least a portion of which is arranged along the height direction, and a base mounting groove on the frame base of the frame assembly; A lifting device includes at least two sets of first drive mechanisms, at least two sets of lifting components, and a first synchronization mechanism; at least two sets of lifting components are spaced apart in a first horizontal direction and are all connected to the frame assembly; each first drive mechanism is drivenly connected to one of the sets of lifting components; the first synchronization mechanism is disposed in the corresponding base mounting slot and is drivenly connected to at least two sets of lifting components simultaneously, so that at least two sets of lifting components can synchronously perform lifting and lowering movements in the height direction; The lifting platform as described in any one of claims 1 to 8, wherein the platform body of the lifting platform is connected to at least two sets of lifting components and is capable of moving up and down synchronously with the at least two sets of lifting components, and wherein when the lifting platform is lowered to the frame base, at least a portion of the platform body extends into the corresponding base mounting slot.

10. The stacker crane according to claim 9, characterized in that, It also includes horizontal movement devices; The horizontal motion device includes: A track mechanism is provided below the frame assembly and extends along a first horizontal direction, and the track mechanism is movably connected to the bottom of the frame assembly; The second drive assembly is located at the bottom of the frame assembly and is used to drive the frame assembly to move along the extension direction of the track mechanism.

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