An elevator suitable for AGV car

Abstract

An elevator suitable for AGV car use, comprising an AGV car, a car and a limiting device for locking after the AGV car moves to a specified position in the car, the limiting device is installed on the bottom surface inside the car, the limiting device comprises a limiting mechanism for limiting the AGV car and a locking mechanism for locking the AGV car, the AGV car comprises a wheel, the outer side of the wheel is provided with a locking hole extending along the rotating shaft, the two sides of the limiting mechanism are provided with locking mechanisms, the locking mechanism is matched with the locking hole, the wheel of the AGV car is matched with the limiting mechanism to limit the AGV car, the locking mechanisms on both sides move close to the wheel and lock the wheels on both sides, thereby avoiding the problem that the AGV car moves or shakes during the operation of the car, causing the goods to fall off, the AGV car enters the car and can keep the goods stable, and the elevator is suitable for AGV car carrying goods.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, specifically relating to an elevator suitable for use with AGV trolleys. Background Technology

[0002] With the rapid development of intelligent manufacturing, warehousing and logistics, and flexible production, Automated Guided Vehicles (AGVs), as core equipment for achieving automated material handling and improving operational efficiency, have expanded their application scenarios from single-floor planar transport to multi-story building transfers. In multi-story factories, smart warehouses, and integrated logistics parks, AGVs need to utilize elevators to move between different floors, thus constructing a fully automated "planar + three-dimensional" transport chain to meet the core requirements of modern production logistics for continuity, efficiency, and unmanned operation.

[0003] However, existing elevator equipment is mostly designed for passenger transport or traditional goods handling. Its structural design, control logic, and interaction methods are difficult to adapt to the automated operation characteristics of AGVs, resulting in many technical bottlenecks for AGVs during cross-floor transfers. This seriously restricts the overall efficiency and stability of automated handling systems. Therefore, it is necessary to configure an elevator suitable for AGVs. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an elevator suitable for use with AGV trolleys.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An elevator suitable for use with AGVs includes an AGV, a car, and a limiting device for locking the AGV after it moves to a designated position inside the car. The limiting device is installed on the bottom surface inside the car and includes a limiting mechanism for restricting the forward movement of the AGV and a locking mechanism for locking the AGV. The AGV includes wheels, and the outer side of each wheel has a locking hole extending along a rotation axis. Locking mechanisms are arranged opposite to each other on both sides of the limiting mechanism, and the locking mechanisms are adapted to the locking holes. Both the limiting mechanism and the locking mechanism protrude from the bottom surface inside the car. The height of the top surface of the limiting mechanism protruding from the bottom surface inside the car is lower than the height of the AGV chassis, and the height of the top surface of the locking mechanism protruding from the bottom surface inside the car is lower than the height of the AGV's cargo platform.

[0006] In this utility model, the interior of the car is divided into several parking areas, and each parking area is provided with a limiting device. The limiting mechanism includes a limiting block, and the limiting block has a limiting curved surface on the side facing the AGV vehicle. The limiting curved surface is adapted to the wheel, and the limiting block protrudes from the bottom surface inside the car.

[0007] In this utility model, the limiting mechanism further includes a limiting base, and the limiting block is rotatably connected to the limiting base.

[0008] In this utility model, the limiting base includes a base plate, side plates and a back plate. The side plates are connected to both sides of the base plate, and the back plate is connected to the rear side of the limiting base. The two sides of the limiting block are rotatably connected to the two side plates respectively. The base plate is located at the bottom of the limiting block, and the back plate is located on the side of the limiting block facing away from the limiting curved surface.

[0009] In this invention, a buffer zone is formed between the back plate and the limiting block, and the buffer zone is provided with buffer filler.

[0010] In this utility model, the top surface of the base plate is provided with a downwardly recessed groove on the side near the back plate. A pressure sensing element is installed in the groove, and a buffer filler is also provided in the groove. The pressure sensing element is connected to the elevator control system.

[0011] In this invention, the cross-section of the limiting surface is a circular arc.

[0012] In this utility model, the locking mechanism includes a locking rod, a locking disc, and an electric telescopic cylinder connected in sequence. One end of the locking rod is connected to the locking disc, and the other end of the locking rod extends along the central axis of the limiting surface. The locking disc has a circular structure, and the outer diameter of the locking disc is smaller than that of the limiting surface.

[0013] In this invention, the other end of the locking rod has a tapered structure.

[0014] In this invention, an electromagnetic guide line is provided on the bottom surface inside the car. The electromagnetic guide line is connected to the elevator control system. The electromagnetic guide line includes a main guide line and branch guide lines. The main guide line extends inward from the car entrance / exit. One end of each branch guide line is connected to the main guide line, and the other end is connected to the parking area. There are several branch guide lines, and each parking area is equipped with one branch guide line. The main guide line has several independently controllable guide segments. The elevator control system can control the corresponding guide segments and branch guide lines to be energized according to the parking area where the AGV car enters the car. The energized guide segments and branch guide lines generate magnetism to construct the travel route of the AGV car after entering the car.

[0015] The beneficial effects of this utility model are as follows: By setting a limiting device inside the elevator car, the AGV trolley can enter the car. Through the limiting effect of the limiting device, the chassis of the AGV trolley can pass through the area where the limiting mechanism is located. The wheels of the AGV trolley cooperate with the limiting mechanism to restrict the forward movement of the AGV trolley. The locking mechanisms on both sides move close to the wheels and lock the wheels on both sides, thereby avoiding the problem of the AGV trolley moving or shaking during the operation of the car and causing the goods to fall off. This ensures that the goods are stable when the AGV trolley enters the car. The elevator is suitable for the use of AGV trolleys to transport goods. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the equipment configuration on each floor in this embodiment; Figure 2 This is a schematic diagram of the control system connection in this embodiment; Figure 3 This is a structural schematic diagram of the elevator in this embodiment; Figure 4 This is a schematic diagram of the limiting device in this embodiment; Figure 5 This is a schematic diagram of the AGV vehicle in this embodiment; Figure 6 This is a schematic diagram of the structure of the limiting mechanism and the locking mechanism in this embodiment. Figure 7 This is a schematic diagram of the cross-sectional structure of the limiting mechanism in this embodiment; Figure 8 This is a schematic diagram of the distribution structure of the limiting device and electromagnetic guide wire inside the car in this embodiment. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] like Figures 1 to 8As shown, this embodiment discloses an elevator suitable for use with AGVs (Automated Guided Vehicles), including a control server 1, a data storage system 2, an elevator control system 3, an AGV control system 4, a charging control system 5, and a shelf control system 6. The control server 1 is used to schedule and control the operation of the elevator 7 and the AGVs 8, intelligent shelves 9, and charging stations 10 on each floor. The control server 1 is communicatively connected to the elevator control system 3, AGV control system 4, charging control system 5, and shelf control system 6 via a communication network. The data storage system 2 is used to store the control programs and signal data of the elevator 7, AGVs 8, intelligent shelves 9, and charging stations 10, and is connected to the control server 1. The elevator control system 3 is used to control the operation of the elevator 7 and is installed inside the elevator. The AGV control system 4 is used to control the operation of the AGVs 8 and is installed inside the AGVs 8. The charging control system 5 is used to control the operation of the charging station 10 and is installed inside the charging station 10. The shelf control system 6 is used to control the operation of the intelligent shelves 9 and is installed on the intelligent shelves 9.Goods between floors are transported by AGV carts 8 into the elevator car 71 for transfer. Each floor is equipped with a smart shelf 9 and a charging station 10. When goods are transferred, the control server 1 retrieves the transfer program package from the data storage system 2. After running the program package, the control server 1 sends a control command to the shelf control system 6 of the smart shelf 9 where the goods are located, retrieves the AGV cart 8 that is idle on the floor where the goods are located, and sends a control command to the AGV control system 4 of the AGV cart 8, so that the AGV cart 8 moves to the location of the smart shelf 9 where the goods are located. The smart shelf 9 places the goods on the AGV cart 8. The control server 1 calculates the time for the AGV cart 8 to move to the waiting area of ​​each elevator 7 and the sum of the waiting time based on the current operation of each elevator 7 and the distance between the AGV cart 8 and the waiting area of ​​each elevator 7, determines the shortest path and sends it to the AGV control system 4, so that the AGV cart 8 moves along the path to the corresponding elevator 7 waiting area. The AGV control system 4 sends an elevator call command to the control server 1, and the control server 1 sends a call command to the elevator control system 3. Upon receiving the elevator call command, the elevator control system 3 controls the car 71 to move to the floor where the AGV trolley 8 is located, and sends the door opening signal of car 71 back to the control server 1. The control server 1 then sends a command to the AGV control system 4, causing the AGV trolley 8 to move into the designated position inside car 71. The AGV control system 4 then sends a signal indicating that it has stopped at the designated position inside car 71 back to the control server 1. The control server 1 sends a running signal to the elevator control system 3, causing car 71 to move to the designated destination floor. The elevator control system 3 sends the door opening signal of car 71 back to the control server 1. The control server 1 then sends a command to the AGV control system 4, causing the AGV trolley 8 to leave car 71 and move towards the intelligent shelf 9 for goods transfer. When the AGV trolley 8 reaches the intelligent shelf 9, the intelligent shelf 9 sends a signal back to the control server 1. The control server 1 then sends a command to the shelf control system 6 of the intelligent shelf 9, causing the intelligent shelf 9 to store the goods and send the goods information back to the control server 1. The control server 1 then records the goods information into the data storage system 2.

[0019] In a preferred embodiment, the elevator 7 further includes a car 71 and a limiting device 72 for locking the AGV trolley 8 after it has moved to a designated position within the car 71. The limiting device 72 is installed on the bottom surface inside the car 71. The limiting device 72 includes a limiting mechanism 721 for restricting the forward movement of the AGV trolley 8 and a locking mechanism 722 for locking the AGV trolley 8. The AGV trolley 8 includes wheels 81, and the outer side of each wheel 81 has a locking hole 82 extending along a rotation axis. The locking mechanisms 722 are arranged opposite to each other on both sides of the limiting mechanism 721. The locking mechanisms 722 are adapted to the locking holes 82. Both the limiting mechanism 721 and the locking mechanism 722 protrude from the interior of the car 71. The top surface of the limiting mechanism 721 protrudes from the bottom surface inside the car 71 at a height lower than the chassis height of the AGV trolley 8. The top surface of the locking mechanism 722 protrudes from the bottom surface inside the car 71 at a height lower than the cargo platform height of the AGV trolley 8. This allows the AGV trolley 8 to move closer to the limiting device 72 when it is traveling. The chassis of the AGV trolley 8 can pass through the area where the limiting mechanism 721 is located. The wheels 81 of the AGV trolley 8 cooperate with the limiting mechanism 721 to restrict the forward movement of the AGV trolley 8. The locking mechanisms 722 on both sides move closer to the wheels 81 and lock the wheels 81 on both sides, thereby preventing the AGV trolley 8 from moving or shaking during the operation of the car 71, which could cause the goods to fall off.

[0020] Specifically, the interior of the car 71 is divided into several parking areas, and each parking area is provided with a limiting device 72. The limiting mechanism 721 includes a limiting block 7211. The limiting block 7211 has a limiting curved surface 7212 on the side facing the AGV trolley 8. The limiting curved surface 7212 is adapted to the wheel 81. The bottom of the limiting curved surface 7212 is tangent to the bottom surface inside the car 71. The limiting block 7211 protrudes from the bottom surface inside the car 71. The limiting mechanism 721 further includes a limiting base 7213. The limiting block 7211 is rotatably connected to the limiting base 7213. The limiting base 7213 includes a base plate 7214, side plates 7215, and a back plate 7216. The side plates 7215 are connected to both sides of the base plate 7214, and the back plate 7216 is connected to the rear side of the limiting base 7213. The two sides of the limiting block 7211 are rotatably connected to the two side plates 7215 respectively. The base plate 7214 is located at the bottom of the limiting block 7211, and the back plate 7216 is located at the bottom of the limiting block 7211. The limiting block 7211 faces away from the limiting curved surface 7212. The back plate 7216 and the limiting block 7211 are separated to form a buffer zone 7217. The buffer zone 7217 is provided with buffer filler, which can be an elastic material such as rubber, foamed polyethylene, or foamed cotton. The top surface of the bottom plate 7214 is provided with a downwardly recessed groove 7218 on the side near the back plate 7216. A pressure sensing element is installed in the groove 7218, and the groove 7218 is also provided with buffer filler. The pressure sensing element is connected to the elevator control system 3. When the AGV trolley 8 enters the parking area and engages with the limiting curved surface 7212, it stops moving due to the blocking action of the limiting block 7211. Simultaneously, the AGV trolley 8 drives the limiting block 7211 to rotate relative to the base. The limiting block 7211 applies pressure to the pressure sensing element, which sends a sensing signal to the elevator control system 3. The elevator control system 3 then controls the locking mechanism 722 to activate, thereby locking the AGV trolley 8 in the parking area in a timely manner. The cross-section of the limiting curved surface 7212 is an arc.

[0021] Specifically, the locking mechanism 722 includes a locking rod 725, a locking disc 723, and an electric telescopic cylinder 724 connected in sequence. One end of the locking rod 725 is connected to the locking disc 723, and the other end of the locking rod 725 extends along the central axis of the limiting curved surface 7212. The locking disc 723 has a disc structure, and its outer diameter is smaller than that of the limiting curved surface 7212, allowing the locking disc 723 to move along the central axis of the limiting curved surface 7212 into the parking area. When the locking mechanism 722 is activated, the electric telescopic cylinder 724 extends, causing the locking rod 725 to enter the locking hole 82 of the wheel 81, and the locking disc 723 to fit against the outer side of the wheel 81, thereby locking the AGV trolley 8. Preferably, the other end of the locking rod 725 has a tapered structure, which provides a certain guiding effect when the locking rod 725 enters the locking hole 82, ensuring that the locking rod 725 can smoothly enter the locking hole 82.

[0022] Specifically, to guide the AGV trolley 8 accurately to the designated parking area after entering the car 71, an electromagnetic guide line 711 is provided on the bottom surface inside the car 71. The electromagnetic guide line 711 is connected to the elevator control system 3. The electromagnetic guide line 711 includes a main guide line 7111 and a branch guide line 7112. The main guide line 7111 extends inward from the entrance and exit of the car 71. One end of the branch guide line 7112 is connected to the main guide line 7111, and the other end is connected to the parking area. The elevator system 12 has several main guide lines 7112, with one branch guide line 7112 corresponding to each parking area. Each main guide line 7111 has several independently controllable guide segments. The elevator control system 3 can energize the corresponding guide segments and branch guide lines 7112 according to the parking area where the AGV trolley 8 enters the car 71. The energized guide segments and branch guide lines 7112 generate magnetism to construct the travel route of the AGV trolley 8 after entering the car 71, thus ensuring the AGV trolley 8 accurately stops at the designated parking area along this route. When the AGV trolley 8 moves to the end of the route along the electromagnetic guide line 711, it brakes, thus entering the designated parking area, and the wheels 81 stop in conjunction with the limiting curved surface 7212.

[0023] The intelligent shelf 9 is provided with a shelf loading and unloading position for AGV trolleys 8 to enter for loading and unloading of goods. The shelf loading and unloading position has a loading and unloading sensing area. The bottom surface of the AGV trolley 8 is provided with a signal transmitting module. By transmitting a signal to the loading and unloading sensing area, the loading and unloading sensing area is connected to the shelf control system 6, so that the shelf control system 6 can accurately determine whether the AGV trolley 8 has entered the shelf loading and unloading position, and then perform the loading and unloading of goods.

[0024] When the AGV 8 has a low battery, the AGV control system 4 sends a charging signal to the control server 1. The control server 1 retrieves the nearest idle charging station 10 that is currently far from the AGV 8, sends a control command to the AGV control system 4 of the AGV 8, and marks the charging station 10 as occupied to prevent multiple AGVs 8 from heading to the same charging station 10 for charging. After receiving the control command, the AGV 8 moves to the charging station 10 to charge. After charging is completed, the AGV 8 leaves the charging station 10. At this time, the charging control system 5 of the charging station 10 and the AGV control system 4 of the AGV 8 both send a charging completion signal to the control server 1. The control server 1 then marks both the charging station 10 and the AGV 8 as idle.

[0025] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An elevator suitable for use with AGV trolleys, characterized in that: The system includes an AGV (8) trolley, a car (71), and a limiting device (72) for locking the AGV trolley (8) after it moves to a designated position inside the car (71). The limiting device (72) is installed on the bottom surface inside the car (71). The limiting device (72) includes a limiting mechanism (721) for restricting the forward movement of the AGV trolley (8) and a locking mechanism (722) for locking the AGV trolley (8). The AGV trolley (8) includes wheels (81), and the outer side of the wheels (81) is provided with locking holes (82) extending along the rotation axis. The limiting mechanism (721) has locking mechanisms (722) on both sides. The locking mechanism (722) is adapted to the locking hole (82). The limiting mechanism (721) and the locking mechanism (722) both protrude from the bottom surface inside the car (71). The height of the top surface of the limiting mechanism (721) protruding from the bottom surface inside the car (71) is lower than the chassis height of the AGV trolley (8). The height of the top surface of the locking mechanism (722) protruding from the bottom surface inside the car (71) is lower than the height of the cargo platform of the AGV trolley (8).

2. The elevator suitable for use with AGV trolleys according to claim 1, characterized in that: The interior of the car (71) is divided into several parking areas, and each parking area is provided with a limiting device (72). The limiting mechanism (721) includes a limiting block (7211). The limiting block (7211) has a limiting curved surface (7212) on the side facing the AGV car (8) as it enters. The limiting curved surface (7212) is adapted to the wheel (81). The limiting block (7211) protrudes from the bottom surface inside the car (71).

3. An elevator suitable for use with AGV trolleys according to claim 2, characterized in that: The limiting mechanism (721) also includes a limiting base (7213), and the limiting block (7211) is rotatably connected to the limiting base (7213).

4. An elevator suitable for use with AGV trolleys according to claim 3, characterized in that: The limiting base (7213) includes a base plate (7214), a side plate (7215), and a back plate (7216). The side plate (7215) is connected to both sides of the base plate (7214), and the back plate (7216) is connected to the rear side of the limiting base (7213). The two sides of the limiting block (7211) are rotatably connected to the two side plates (7215) respectively. The base plate (7214) is located at the bottom of the limiting block (7211), and the back plate (7216) is located on the side of the limiting block (7211) facing away from the limiting curved surface (7212).

5. An elevator suitable for use with AGV trolleys according to claim 4, characterized in that: The back plate (7216) and the limiting block (7211) are separated to form a buffer zone (7217), and the buffer zone (7217) is provided with buffer filler.

6. An elevator suitable for use with AGV trolleys according to claim 4, characterized in that: The bottom plate (7214) has a downward recessed groove (7218) on the side of the top surface near the back plate (7216). A pressure sensing element is installed in the groove (7218), and a buffer filler is also provided in the groove (7218). The pressure sensing element is connected to the elevator control system (3).

7. An elevator suitable for use with AGV trolleys according to claim 2, characterized in that: The cross-section of the limiting surface (7212) is a circular arc.

8. An elevator suitable for use with AGV trolleys according to claim 2, characterized in that: The locking mechanism (722) includes a locking rod (725), a locking disc (723), and an electric telescopic cylinder (724) connected in sequence. One end of the locking rod (725) is connected to the locking disc (723), and the other end of the locking rod (725) extends along the central axis of the limiting surface (7212). The locking disc (723) is a disc structure, and the outer diameter of the locking disc (723) is smaller than that of the limiting surface (7212).

9. An elevator suitable for use with AGV trolleys according to claim 8, characterized in that: The other end of the locking lever (725) has a tapered structure.

10. An elevator suitable for use with AGV trolleys according to claim 2, characterized in that: The bottom surface inside the car (71) is provided with an electromagnetic guide line (711), which is connected to the elevator control system (3). The electromagnetic guide line (711) includes a main guide line (7111) and a branch guide line (7112). The main guide line (7111) extends inward from the entrance and exit of the car (71). One end of the branch guide line (7112) is connected to the main guide line (7111), and the other end is connected to the parking area. There are several main guide lines (7112) and each parking area is equipped with a sub-guide line (7112). The main guide line (7111) has several independently controllable guide sections. The elevator control system (3) can control the corresponding guide sections and sub-guide lines (7112) to be energized according to the parking area where the AGV car (8) enters the car (71) and stops. The energized guide sections and sub-guide lines (7112) generate magnetism to construct the driving route of the AGV car (8) after entering the car (71).

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