An OHT warehousing system

Abstract

This application provides an OHT (Outbound Loading and Unloading) warehousing system, including a goods storage area and an OHT goods handling device. The goods storage area is equipped with gravity flow racks for storing goods. The OHT goods handling device is used to retrieve goods from and / or transport goods onto the gravity flow racks. Because the OHT goods handling device is suspended between the goods handling area and the goods storage area, it facilitates the turnover of goods without occupying floor space, allowing for the storage of more gravity flow racks and thus more goods.

Description

Technical Field

[0001] This application relates to the field of warehousing and logistics conveying equipment technology, and in particular to an OHT warehousing system. Background Technology

[0002] With the rapid development of the modern logistics industry towards automation and intelligence, smart warehousing applications are becoming increasingly widespread.

[0003] In a bin storage system, bins are often placed on bin shelves or stacked in a designated area, and bin handling robots move on the ground to pick up, place, and transfer bins.

[0004] Since multiple bin-handling robots need to be set up on the ground, and these robots require a large amount of space to move bins, this application provides an OHT warehousing system. Utility Model Content

[0005] This application provides an OHT storage system for storing and rotating material bins.

[0006] In a first aspect, embodiments of this application provide an OHT warehousing system, including:

[0007] A goods storage area equipped with gravity flow racks, wherein the gravity flow racks are used to store goods;

[0008] OHT goods pick-and-place device for picking up goods from the flow rack and / or conveying goods to the flow rack.

[0009] In one feasible implementation, the flow rack includes multiple layers and multiple rows of flow rack positions, each flow rack position is inclined, and each flow rack position has a blocking element at its lower end.

[0010] In one feasible implementation, all the flow rack positions are tilted toward the direction of docking with the OHT cargo handling device, so as to facilitate the OHT cargo handling device in taking away the goods.

[0011] In one feasible implementation, all the flow rack positions are tilted away from the direction of docking with the OHT cargo handling device in order to receive the cargo delivered by the OHT cargo handling device.

[0012] In one feasible implementation, some of the flow rack positions are tilted toward the direction of docking with the OHT (Outbound Handling and Loading) device to facilitate the OHT device in taking away goods, while the other part is tilted away from the direction of docking with the OHT device to receive goods delivered by the OHT device.

[0013] In one feasible implementation, all of the flow rack locations are of a single size; or, the flow rack locations are configured with multiple sizes to accommodate goods of different sizes.

[0014] In one feasible implementation, the OHT cargo handling device includes:

[0015] A ceiling track used to connect the cargo storage area and the cargo storage area;

[0016] The mother car is connected to the aforementioned overhead rail;

[0017] The subcarriage includes a loading platform, a support assembly, and a telescopic conveyor assembly;

[0018] The mother car is suspended and connected to the cargo platform, the support assembly is disposed on the cargo platform, and the telescopic conveyor assembly is disposed on the cargo platform.

[0019] In one feasible implementation, the support assembly includes a support member, a support arm, and a support drive assembly;

[0020] The support member is disposed at the end of the support arm, the support arm is movably disposed on the loading platform, the support drive assembly is disposed on the loading platform, and the support drive assembly is used to drive the support arm to move so that the support member can abut against the fixed component.

[0021] The support drive assembly is configured as one of a gear and rack assembly, a lead screw drive assembly, a scissor telescopic drive assembly, a cylinder drive assembly, a hydraulic cylinder drive assembly, or an electric cylinder drive assembly.

[0022] The support member is a roller or a support block with balls on its support surface.

[0023] In one feasible implementation, the telescopic conveying assembly includes a conveying assembly and a telescopic drive assembly;

[0024] The conveying assembly is movably mounted on the loading platform, and the telescopic drive assembly is mounted on the loading platform. The telescopic drive assembly is used to drive the conveying assembly to extend or retract from the loading platform.

[0025] The conveying assembly is configured as a belt conveyor assembly or a chain conveyor assembly;

[0026] The telescopic drive assembly is configured as one of a rack and pinion drive assembly, a lead screw drive assembly, a cylinder, a hydraulic cylinder, or an electric cylinder.

[0027] In one feasible implementation, the OHT cargo handling device further includes a cargo protection component disposed on the cargo platform;

[0028] The cargo protection component includes two adjustable cargo pushing parts arranged opposite each other. The two adjustable cargo pushing parts are used to adjust the cargo placement distance to prevent the cargo from shaking and falling.

[0029] Each of the adjustable cargo pushing units includes a cargo protective plate and a pushing drive assembly;

[0030] The cargo protective plate is movably mounted on the cargo platform, and the pushing drive assembly is mounted on the cargo platform, driving the cargo protective plate to move.

[0031] In one feasible implementation, the sub-vehicle further includes a positioning component;

[0032] The positioning component includes a first positioning part and a second positioning part. The first positioning part is vertically disposed on the mother car, and the second positioning part is vertically disposed on the cargo platform. The first positioning part and the second positioning part are selectively inserted to limit the swing of the cargo platform.

[0033] In one feasible implementation, the mother car includes a frame, a traveling assembly, and a hoisting assembly;

[0034] The traveling assembly is mounted on the vehicle frame and cooperates with the overhead rail. The winch lifting assembly is mounted on the vehicle frame and connected to the loading platform for controlling the lifting and lowering of the loading platform.

[0035] The hoisting and lifting assembly includes at least one flexible lifting component and a lifting drive component. The flexible lifting component is connected to the trolley, and the lifting drive component controls the lifting and lowering of the trolley through the flexible lifting component.

[0036] When multiple flexible lifting components are provided, the multiple flexible lifting components share at least one lifting drive component, or each flexible lifting component is independently provided with a lifting drive component.

[0037] This application provides an OHT (Outbound Loading and Unloading) warehousing system, including a goods storage area and an OHT goods handling device. The goods storage area is equipped with gravity flow racks for storing goods. The OHT goods handling device is used to retrieve goods from and / or transport goods onto the gravity flow racks. Because the OHT goods handling device is suspended between the goods handling area and the goods storage area, it facilitates the turnover of goods without occupying floor space, allowing for the storage of more gravity flow racks and thus more goods. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present application, but do not constitute an undue limitation of the present invention.

[0039] In the attached diagram:

[0040] Figure 1 This is a schematic diagram of the OHT warehousing system provided in the first embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the OHT warehousing system provided in the second embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the OHT warehousing system provided in the third embodiment of this application;

[0043] Figure 4 This is a schematic diagram of the assembly of the flow strip and the cargo beam according to an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the overall structure of the OHT cargo handling device provided in one embodiment of this application;

[0045] Figure 6 yes Figure 5 A schematic diagram of part of the structure of the OHT cargo handling device;

[0046] Figure 7 yes Figure 5 A schematic diagram of the sub-carriage mechanism;

[0047] Figure 8 yes Figure 7 A top view of the vehicle;

[0048] Figure 9 This is a structural diagram of the support components in section 7;

[0049] Figure 10 yes Figure 8 A schematic diagram of the first state when the support component is in operation;

[0050] Figure 11 yes Figure 8 This is a schematic diagram of the second state when the support component is in operation.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100 - Goods storage area; 200 - Picking and placing area; 300 - Operation area; 400 - OHT (Outbound Handling) equipment; 500 - Flow rack; 600 - Fixed components;

[0053] 410 - Mother car; 420 - Daughter car; 510 - Upright column; 520 - Cargo beam; 530 - Flow rail storage position; 540 - Blocking element; 550 - Side panel;

[0054] 411-Chassis; 412-Traversing Components; 413-Winch Lifting Components; 421-Loading Platform; 422-Supporting Components; 423-Telescopic Conveyor Components; 424-Cargo Protection Components; 425-Positioning Components;

[0055] 4121-Clamping assembly; 4122-Walking wheel; 4123-Walking drive assembly; 4131-Belt lifting assembly; 4132-Lifting drive assembly; 4221-Support member; 4222-Support arm; 4223-Support drive assembly; 4231-Conveying assembly; 4232-Telescopic drive assembly; 4241-Cargo protective plate; 4242-Pushing drive assembly; 4251-First positioning part; 4252-Second positioning part;

[0056] 4251a - First fixing bracket; 4251b - Socket part; 4252a - Second fixing bracket; 4252b - Insertion part. Detailed Implementation

[0057] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0058] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] With the rapid development of the modern logistics industry towards automation and intelligence, smart warehousing applications are becoming increasingly widespread.

[0062] In a bin storage system, bins are often placed on bin shelves or stacked in a designated area, and bin handling robots move on the ground to pick up, place, and transfer bins.

[0063] Since multiple bin-handling robots need to be set up on the ground, and these robots require a large amount of space to move bins, this application provides an OHT warehousing system. The solution provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0064] This application provides an OHT (Outbound Loading and Unloading) warehousing system, including a goods storage area 100 and an OHT goods handling device 400. The goods storage area 100 is equipped with gravity flow racks 500 for storing goods. The OHT goods handling device 400 is used to retrieve goods from and / or transport goods onto the gravity flow racks 500. Because the OHT goods handling device 400 is suspended between the goods storage area and the goods storage area 100, it facilitates the turnover of goods without occupying floor space, allowing the entire goods storage area 100 to store more gravity flow racks and thus more goods.

[0065] Figure 1 This is a schematic diagram of the OHT warehousing system provided in the first embodiment of this application; Figure 2 This is a schematic diagram of the OHT warehousing system provided in the second embodiment of this application; Figure 3 This is a schematic diagram of the OHT warehousing system provided in the third embodiment of this application.

[0066] In some examples, the goods storage area 100 is used as a storage area for goods, which are placed on the flow rack 500.

[0067] In some examples, cargo storage area 100 is used as a transit area for goods. (See reference...) Figures 1 to 3As shown, a pick-and-place area 200 is provided on one side of the flow rack 500. The OHT goods pick-and-place device 400 can be moved to the pick-and-place area 200 to pick up and place goods on the flow rack 500. An operating area 300 is provided on the other side of the flow rack 500.

[0068] The operating area 300 is used for manually or mechanically retrieving and placing goods on the flow racks 500 in the goods storage area 100. In this warehousing system, the OHT (Outbound Handling) device 400 is used to move goods between the goods storage area (not shown in the figure) and the goods storage area 100. It should be noted that the goods storage area can be a storage area for goods or a separate goods storage area 100.

[0069] For example, when storing goods in the storage area of ​​the warehousing system, the goods are placed manually or mechanically on the flow rack 500 in the storage area 100 from the operation area 300. The OHT goods pick-and-place device 400 retrieves the goods from the flow rack 500 in the storage area 100 from the pick-and-place area 200 and then transports them to the storage area.

[0070] The goods storage area 100 is exemplarily provided with a flow rack 500 including multiple layers and multiple rows of flow rack positions 530, each flow rack position 530 being inclined and each flow rack position 530 having a stopper 540 at its lower end.

[0071] like Figures 1 to 3 As shown, exemplarily, each flow rack 500 specifically includes an upright 510, a load-bearing beam 520, a flow rack, and a stopper 540. The load-bearing beam 520 and the flow rack form a flow rack storage location 530. Multiple uprights 510, load-bearing beams 520, flow racks, and stoppers 540 are provided. Multiple uprights 510 are spaced apart on the ground of the goods storage area 100, and multiple load-bearing beams 520 are fixedly installed on corresponding uprights 510, with each load-bearing beam 520 inclined to one side. The flow rack is disposed on the corresponding load-bearing beam 520, and a stopper 540 is provided at the lower end of the load-bearing beam 520. For example, the load-bearing beam 520 is inclined towards the OHT goods handling device 400, i.e., inclined towards the handling area 200, and the flow rack is disposed along the load-bearing beam 520. When goods are placed on the loading beam 520, they move along the flow rack under the action of the flow rack and toward the side of the OHT goods pick-and-place device 400, i.e., the pick-and-place area 200. Blocked by the blocking member 540, the goods accumulate on the side of the flow rack 500 near the pick-and-place area 200 and tend to slide downwards, awaiting loading by the OHT goods pick-and-place device 400. For example, the goods may be bins.

[0072] Once the OHT (Outlet Loading and Unloading) device 400 moves along the track to a designated position on one side of the flow rack 500, the control stop 540 descends, and the goods move along the flow rack into the OHT device 400. For example, the raising and lowering of the stop 540 can be controlled by a cylinder, hydraulic cylinder, or other linear drive assembly to block or release the hopper.

[0073] Understandably, in the flow rack 500, the side of the flow rack position 530 facing the inclined direction is the outgoing side, and the opposite side is the incoming side. That is to say, the side of the flow rack position 530 with a relatively lower height is the outgoing side, and the side with a relatively higher height is the incoming side.

[0074] like Figure 1 As shown, in some examples, all the flow rack positions 530 in the flow rack 500 are inclined to the same side, that is, the loading beams 520 and the flow racks are inclined in the same direction. For example, they are all inclined towards the direction of docking with the OHT (Outbound Handling) device 400 to facilitate the removal of goods by the OHT device 400. In these examples, the OHT device 400 is a picking device used to pick up goods from the flow rack 500 and transfer them to the goods storage area.

[0075] like Figure 2 As shown, in some other examples, all flow rack positions 530 are tilted towards the operating area 300, i.e., tilted away from the direction of docking with the OHT goods pick-and-place device 400, to receive goods delivered by the OHT goods pick-and-place device 400. In these examples, the OHT goods pick-and-place device 400 is a delivery device. After the OHT goods pick-and-place device 400 grabs goods from the goods storage area, it moves to the pick-and-place area 200 and places the delivered goods on the flow rack 500 of the goods storage area 100. The goods move along the flow rack on the loading beam 520 towards the operating area 300, waiting to be picked up manually or mechanically.

[0076] like Figure 3 As shown, in some other examples, some of the flow rack positions 530 are tilted towards the goods storage area, specifically towards the direction 400 (picking / placing area 200) where they dock with the OHT goods picking / placing device, while other flow rack positions 530 are tilted towards the operating area 300. In these examples, some of the loading beams 520 have a relatively lower height at the end near the OHT goods picking / placing device 400, while others have a relatively higher height at the end near the OHT goods picking / placing device 400. Goods move along the loading beams 520 from the higher end to the lower end under the action of the flow racks. In these examples, the OHT goods picking / placing device 400 can both pick up goods from the flow rack shelves 500 in the goods storage area 100 and place goods on the flow rack shelves 500.

[0077] Figure 4 This is a schematic diagram of the assembly of the flow strip and the cargo beam 520 according to an embodiment of this application.

[0078] Reference Figure 4 As shown, a flow bar is fixedly mounted on the loading beam 520. Side baffles 550 are provided on both sides of the flow bar. The side baffles 550 are used to limit the position of the hopper located on the flow bar, preventing the hopper from sliding off the flow bar when it moves along the flow bar. When the loading beam 520 is inclined on the column 510, a blocking member 540 is provided at its lower end. For example, the blocking member 540 can be a blocking plate.

[0079] In some examples, the flow rack 500 stores only a single size of goods, and thus the flow rack location 530 is a single size. In other examples, the flow rack 500 needs to hold goods of multiple sizes. In order to enable the flow rack 500 to store goods of multiple sizes, the flow rack location 530 can be configured to accommodate multiple sizes.

[0080] Figure 5 This is a schematic diagram of the overall structure of the OHT cargo handling device 400 provided in one embodiment of this application; Figure 6 yes Figure 5 A schematic diagram of part of the structure of the OHT cargo handling device 400.

[0081] Reference Figure 5 and Figure 6 As shown, the OHT cargo handling device 400 includes a ceiling track, a mother car 410, and a daughter car 420. The ceiling track is arranged between the cargo storage area and the cargo storage area 100, and the mother car 410 is mounted on the ceiling track. The mother car 410 rotates along the ceiling track between the cargo storage area and the cargo storage area 100. The daughter car 420 is suspended from the mother car 410 and is used to carry material boxes; the mother car 410 drives the daughter car 420. For example, the daughter car 420 includes a loading platform 421, a support assembly 422, and a telescopic conveyor assembly 423. The mother car 410 is suspended from the loading platform 421 via a lifting belt, the support assembly 422 is mounted on the loading platform 421, and the telescopic conveyor assembly 423 is mounted on the loading platform 421. When the mother car 410 moves the loading platform 421 to one side of the flow rack 500, the support assembly 422 extends from the loading platform 421 and supports the side of the flow rack 500, thereby fixing the loading platform 421 and keeping it relatively stable. Then, the telescopic conveyor assembly 423 extends from the loading platform 421 to pick up the boxes sliding out of the flow rack 500 or to move the boxes onto the flow rack 500.

[0082] Figure 7 yes Figure 5 A schematic diagram of the mechanism of the sub-carriage 420; Figure 8 yes Figure 7 A top view of the 420 sub-vehicle; Figure 9 This is a structural schematic diagram of the support component 422 in section 7.

[0083] Reference Figures 7 to 9 As shown, in some examples, the support assembly 422 includes a support member 4221, a support arm 4222, and a support drive assembly 4223. The support member 4221 is disposed at the end of the support arm 4222, which is movably mounted on the loading platform 421 via a slide rail. The support drive assembly 4223 is disposed on the loading platform 421 and connected to the support arm 4222. The support drive assembly 4223 can drive the support arm 4222 to extend from the loading platform 421, allowing the support member 4221 to abut against the fixed component 600. The fixed component 600 may be the upright 510 of the flow rack 500.

[0084] Alternatively, for example, the support member 4221 can be a support block, support plate, roller, or other structural component, and the support arm 4222 is a movable plate, the lower surface of which is mounted on the loading platform 421 via a slide rail. Additionally, a ball bearing can be provided on one side of the support surface of the support block. The support drive assembly 4223 can be a gear and rack assembly with a drive motor. The drive motor is fixedly mounted on the loading platform 421, the gear is mounted on the output end of the drive motor, and the rack is mounted on the movable plate. The drive motor drives the movable plate to move via the gear and rack, thereby outputting or retracting from the loading platform 421. It is understood that the support drive assembly 4223 can also be a lead screw drive assembly, a scissor-type telescopic drive assembly, a cylinder drive assembly, a hydraulic cylinder drive assembly, an electric cylinder drive assembly, or other linear drive assembly, as long as it can drive the movable plate to move.

[0085] Figure 10 yes Figure 8 A schematic diagram of the first state of the support component 422 during operation; Figure 11 yes Figure 8 The second state diagram of the support component 422 during operation.

[0086] Reference Figure 10 and Figure 11As shown, during the loading and unloading of goods, the mother carriage 410 moves to a designated position, then controls the daughter carriage 420 to move to an appropriate height. Next, the support drive assembly 4223 of the support assembly 422 controls the support arm 4222 to move outward, causing its end support member 4221 to abut against the fixed component 600 (e.g., the upright 510 of the flow rack 500), ensuring the stability of the loading platform 421 of the daughter carriage 420. Finally, the telescopic conveyor assembly 423 of the daughter carriage 420 loads and unloads goods. It can be understood that because the support assembly 422 abuts against the fixed component 600, the position of the loading platform 421 is fixed, facilitating the telescopic conveyor assembly 423 to move goods between the loading platform 421 and the flow rack 500.

[0087] Reference Figure 8 and Figure 9 As shown, exemplarily, the telescopic conveying assembly 423 includes a conveying assembly 4231 and a telescopic drive assembly 4232. The conveying assembly 4231 is movably mounted on the loading platform 421 via a slide rail, and the telescopic drive assembly 4232 is fixedly mounted on the loading platform 421 and connected to the conveying assembly 4231. The telescopic drive assembly 4232 can drive the conveying assembly 4231 to extend or retract from the loading platform 421.

[0088] Specifically, during the picking and placing process, the telescopic drive assembly 4232 drives the conveyor assembly 4231 to extend from the loading platform 421 and dock with the flow rack 500. After the picking and placing is completed, the telescopic drive assembly 4232 drives the conveyor assembly 4231 to retract into the loading platform 421. For example, the conveyor assembly 4231 can be a belt conveyor assembly 4231. When the hopper partially slides onto the belt conveyor assembly 4231 under the action of the flow rack, the conveyor belt can move the entire hopper onto the belt conveyor assembly 4231. Alternatively, the conveyor assembly 4232 can also be a chain conveyor assembly. Both belt conveyor assemblies and chain conveyor assemblies are prior art and will not be described in detail here.

[0089] For example, the telescopic drive assembly 4232 can be a linear drive assembly such as a lead screw drive assembly, a gear and rack drive assembly, a cylinder, an electric cylinder, or a hydraulic cylinder, all of which are existing technologies and will not be described in detail here.

[0090] Continue to refer to Figure 7 and Figure 8 As shown, in some examples, the OHT cargo handling device 400 also includes a cargo protection assembly 424 disposed on the loading platform 421. This cargo protection assembly 424 includes two adjustable cargo pushing sections disposed opposite each other. These two adjustable cargo pushing sections are used to adjust the cargo placement spacing to prevent the hopper from falling off the loading platform 421 due to shaking during movement. It is understood that the two adjustable cargo pushing sections are disposed opposite each other along a direction perpendicular to the conveying direction of the conveying assembly 4231.

[0091] For example, each adjustable cargo moving unit includes a cargo protection plate 4241 and a moving drive assembly 4242. The cargo protection plate 4241 is movably mounted on the loading platform 421 via a slide rail. The moving drive assembly 4242 is fixedly mounted on the loading platform 421 and connected to the cargo protection plate 4241, driving the cargo protection plate 4241 to move. The two opposing cargo protection plates 4241 can move relative to each other or away from each other to adjust the distance between them, accommodating and clamping material boxes of different sizes. The moving drive assembly 4242 can be a lead screw and nut drive assembly, a gear and rack drive assembly, a cylinder, an electric cylinder, or a hydraulic cylinder, etc., all of which are prior art and will not be described in detail here.

[0092] Such as 5 and Figure 6 As shown, in some examples, the sub-cart 420 also includes a positioning component 425, which is used to prevent the sub-cart 420 from swaying during the movement of the mother car 410. Specifically, the positioning component 425 includes a first positioning part 4251 and a second positioning part 4252. The first positioning part 4251 is vertically disposed on the mother car 410, and the second positioning part 4252 is vertically disposed on the loading platform 421. The first positioning part 4251 can selectively engage with the second positioning part 4252. When the first positioning part 4251 and the second positioning part 4252 are engaged, the first positioning part 4251 can restrict the movement of the second positioning part 4252, thereby restricting the swaying of the loading platform 421, ensuring the stability of the goods on the loading platform 421, and preventing them from falling off.

[0093] For example, in some examples, the first positioning part 4251 includes a first fixing frame 4251a and a socket part 4251b. The first fixing frame 4251a is vertically and fixedly mounted on the mother car 410, and the socket part 4251b is fixedly mounted on the lower end of the first fixing frame 4251a. The second positioning part 4252 includes a second fixing frame 4252a and a plug-in part 4252b. The plug-in part 4252b can cooperate with the socket part 4251b. The second fixing frame 4252a is vertically and fixedly disposed on the loading platform 421 and is located directly below the first fixing frame 4251a. The plug-in part 4252b is fixedly disposed at the top of the second fixing frame 4252a and is coaxially disposed with the socket part 4251b. When the lifting drive assembly 4132 drives the loading platform 421 to rise to the moving height via the belt lifting assembly 4131, the insertion part 4252b can be inserted into the socket part 4251b. The socket part 4251b can restrict the movement of the insertion part 4252b, thereby restricting the swing of the loading platform 421.

[0094] To ensure the limiting effect on the loading platform 421, each sub-cart 420 includes two positioning components 425. The two positioning components 425 are arranged opposite each other, located on both sides of the loading platform 421. In addition, each first positioning part 4251 may be provided with multiple insertion parts 4252b, and the second positioning part 4252 may be provided with a corresponding number of socket parts 4251b, thereby improving the limitation of the position of the loading platform 421 and ensuring its stability during movement.

[0095] Reference Figure 6 As shown, the mother car 410 includes a frame 411, a traveling assembly 412, and a hoisting and lifting assembly 413. The traveling assembly 412 is fixedly mounted on the frame 411 and cooperates with the overhead rail. The hoisting and lifting assembly 413 is mounted on the frame 411 and connected to the loading platform 421 for controlling the lifting and lowering of the loading platform 421. For example, the traveling assembly 412 includes a clamping assembly 4121, traveling wheels 4122, and a traveling drive assembly 4123. The clamping assembly 4121 is fixedly mounted on the frame 411 and cooperates with the overhead rail. Both the traveling wheels 4122 and the traveling drive assembly 4123 are mounted on the frame 411, with the traveling wheels 4122 abutting against the overhead rail. The traveling drive assembly 4123 can drive the traveling wheels 4122 to rotate, thereby moving the frame 411 along the overhead rail. For example, the walking drive component 4123 may be a servo motor.

[0096] In some examples, multiple sets of clamping components 4121 are provided, and the multiple sets of clamping components 4121 are spaced apart on the frame 411 and respectively connected to the overhead rail to ensure a stable connection between the frame 411 and the overhead rail.

[0097] In some examples, the hoisting lifting assembly 413 includes at least one flexible lifting assembly 4131 and a lifting drive assembly 4132. The flexible lifting assembly 4131 is connected to the trolley 420, and the lifting drive assembly 4132 controls the lifting and lowering of the trolley 200 through the flexible lifting assembly 4131.

[0098] When multiple flexible lifting components 4131 are provided, the multiple flexible lifting components 4131 share at least one lifting drive component 4132, or each flexible lifting component 4131 is independently provided with a lifting drive component 4132.

[0099] For example, the hoisting lifting assembly 413 includes at least four belt lifting assemblies 4131 and a lifting drive assembly 4132. The at least four belt lifting assemblies 4131 are evenly distributed on the frame 411 and connected to the trolley 420. The lifting drive assembly 4132 is mounted on the frame 411 and drives all the belt lifting assemblies 4131 to control the lifting and lowering of the trolley 420. The multiple belt lifting assemblies 4131 evenly distributed on the frame 411 and operating simultaneously to control the lifting and lowering of the trolley 420 ensures balanced force distribution and smooth lifting and lowering of the trolley 420.

[0100] Specifically, in some examples, the hoisting lifting assembly 413 includes one lifting drive assembly 4132 and four belt lifting assemblies 4131, which are respectively located at the four corners of the frame 411. Opposite belt lifting assemblies 4131 are connected via synchronous shafts, and the lifting drive assembly 4132 is fixedly mounted on the frame 411 and connected to two synchronous shafts. Furthermore, the four belt lifting assemblies 4131 are respectively connected to the cargo platform 421 of the sub-cart 420 via lifting belts. That is, one lifting drive assembly 4132 simultaneously drives all four belt lifting assemblies 4131 to operate simultaneously, thereby controlling the lifting and lowering of the cargo platform 421. In other examples, two lifting drive assemblies 4132 are provided on the frame 411, each lifting drive assembly 4132 being connected to a drive shaft to control the operation of two belt lifting assemblies 4131 on one side of the frame 411.

[0101] In other examples, four lifting drive assemblies 4132 may also be provided on the frame 411, with each of the four lifting drive assemblies 4132 corresponding to one belt lifting assembly 4131, meaning that one lifting drive assembly 4132 controls the movement of one belt lifting assembly 4131. This allows for easy adjustment of the tension of the lifting belt of the belt lifting assembly 4131.

[0102] For example, the lifting drive assembly 4132 can be a servo motor, and the belt lifting assembly 4131 includes a pulley and a lifting belt. The pulley is rotatably mounted on the frame 411, and the lifting belt is wound around the pulley. During the forward and reverse rotation of the pulley driven by the servo motor, the lifting belt is controlled to wind around the pulley, thereby controlling the lifting and lowering of the loading platform 421. This is prior art and will not be described in detail here.

[0103] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0104] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An OHT storage system characterized by, include: A goods storage area (100) is provided with a flow rack (500) for storing goods; OHT cargo handling device (400), including: The overhead rail connects to the cargo storage area (100). The mother car (410) is connected to the overhead rail. A trolley (420) is suspended from the mother trolley (410); the trolley (420) is used to pick up goods from the flow rack (500) and / or to transport goods to the flow rack (500).

2. The OHT warehouse system of claim 1, wherein, The flow rack (500) includes multiple layers and multiple rows of flow rack positions (530), each flow rack position (530) is inclined, and each flow rack position (530) is provided with a blocking element (540) at its lower end.

3. The OHT warehouse system of claim 2, wherein, All of the aforementioned flow rack positions (530) are tilted toward the direction of docking with the OHT cargo handling device (400) to facilitate the OHT cargo handling device (400) in taking away the cargo.

4. The OHT warehouse system of claim 2, wherein: All of the aforementioned flow rack positions (530) are tilted away from the direction of docking with the OHT cargo handling device (400) to receive cargo delivered by the OHT cargo handling device (400).

5. The OHT warehousing system according to claim 2, characterized in that, Of all the flow rack positions (530), some flow rack positions (530) are tilted toward the direction of docking with the OHT cargo handling device (400) to cooperate with the OHT cargo handling device (400) to take away the goods, while the other part is tilted away from the direction of docking with the OHT cargo handling device (400) to receive the goods delivered by the OHT cargo handling device (400).

6. The OHT warehousing system according to claim 2, characterized in that, All of the aforementioned flow rack positions (530) are of a single size; or, the flow rack positions (530) are configured in multiple sizes to accommodate goods of different sizes.

7. The OHT warehousing system according to claim 1, characterized in that, The overhead rail is used to connect the cargo storage area and the cargo storage area (100). The sub-vehicle (420) includes a loading platform (421), a support assembly (422), and a telescopic conveyor assembly (423). The mother car (410) is suspended and connected to the cargo platform (421), the support assembly (422) is disposed on the cargo platform (421), and the telescopic conveyor assembly (423) is disposed on the cargo platform (421).

8. The OHT warehousing system according to claim 7, characterized in that, The support assembly (422) includes a support member (4221), a support arm (4222), and a support drive assembly (4223). The support member (4221) is disposed at the end of the support arm (4222), the support arm (4222) is movably disposed on the loading platform (421), the support drive assembly (4223) is disposed on the loading platform (421), and the support drive assembly (4223) is used to drive the support arm (4222) to move so that the support member (4221) can abut against the fixed component (600); The support drive assembly (4223) is configured as one of a gear and rack assembly, a lead screw drive assembly, a scissor telescopic drive assembly, a cylinder drive assembly, a hydraulic cylinder drive assembly, or an electric cylinder drive assembly. The support member (4221) is a roller or a support block with balls on the support surface.

9. The OHT warehousing system according to claim 7, characterized in that, The telescopic conveying assembly (423) includes a conveying assembly (4231) and a telescopic drive assembly (4232). The conveying assembly (4231) is movably disposed on the loading platform (421), and the telescopic drive assembly (4232) is disposed on the loading platform (421). The telescopic drive assembly (4232) is used to drive the conveying assembly (4231) to extend or retract from the loading platform (421). The conveying assembly (4231) is configured as a belt conveyor assembly or a chain conveyor assembly; The telescopic drive assembly (4232) is configured as one of a rack and pinion drive assembly, a lead screw drive assembly, a cylinder, a hydraulic cylinder, or an electric cylinder.

10. The OHT warehousing system according to claim 7, characterized in that, The OHT cargo handling device (400) also includes a cargo protection component (424) disposed on the cargo platform (421). The cargo protection component (424) includes two adjustable cargo pushing parts arranged opposite to each other. The two adjustable cargo pushing parts are used to adjust the cargo placement distance to prevent the cargo from shaking and falling. Each of the adjustable cargo pushing units includes a cargo protection plate (4241) and a pushing drive assembly (4242). The cargo protection plate (4241) is movably mounted on the loading platform (421), and the push drive assembly (4242) is mounted on the loading platform (421). The push drive assembly (4242) drives the cargo protection plate (4241) to move.

11. The OHT warehousing system according to claim 7, characterized in that, The sub-vehicle (420) also includes a positioning component (425); The positioning component (425) includes a first positioning part (4251) and a second positioning part (4252). The first positioning part (4251) is vertically disposed on the mother car (410), and the second positioning part (4252) is vertically disposed on the loading platform (421). The first positioning part (4251) and the second positioning part (4252) are selectively connected to limit the swing of the loading platform (421).

12. The OHT warehousing system according to claim 7, characterized in that, The mother car (410) includes a frame (411), a running gear (412), and a hoisting assembly (413). The traveling component (412) is mounted on the frame (411) and cooperates with the overhead rail. The hoisting lifting component (413) is mounted on the frame (411) and is connected to the loading platform (421) to control the lifting of the loading platform (421). The hoisting lifting assembly (413) includes at least one flexible lifting assembly (4131) and a lifting drive assembly (4132). The flexible lifting assembly (4131) is connected to the subcarriage (420), and the lifting drive assembly (4132) controls the lifting and lowering of the subcarriage (420) through the flexible lifting assembly (4131). When multiple flexible lifting components (4131) are provided, the multiple flexible lifting components (4131) share at least one lifting drive component (4132), or each flexible lifting component (4131) is independently provided with a lifting drive component (4132).

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