AGV front and rear trolley hook assembly

Abstract

The utility model relates to AVG trolley technical field especially AGV front and rear trolley hook assembly, including front car hanger and frame assembly, front car hanger installs on frame assembly, and frame assembly is fixed on the front car frame through the mode of screwing, front car hanger includes hook pliers, electromagnet mechanism, proximity sensor and linkage, and the U type ring of rear car is mutually hanged to hook pliers, and proximity sensor sets up on front car hanger and is used for measuring the distance with rear car, the hooking principle of the utility model is that front car hanger adopts sensor measurement and the distance with rear car, when rear car enters into the range of hooking can link, and the electromagnet component of front car hanger realizes the link and the separation of hook through the on-off electricity, this hook not only improves the automation degree of equipment operation, and device structure is simple, and the running speed is faster, and the production rhythm of assembly line is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of AGV (Automated Guided Vehicle) technology, and in particular to the front and rear hook assembly of AGV. Background Technology

[0002] Currently, the coupler is a vehicle component that connects vehicles, transmits traction and impact forces, and maintains a certain distance between them. At present, the "Zhan Tianyou hook" has been used for connecting front and rear vehicles, especially heavy-duty vehicles. However, with advancements in technology and increased automation, its manual hooking and unhooking mechanism can no longer meet daily operational needs.

[0003] Therefore, there is a need for an AGV front and rear trolley hook assembly that can solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a hook assembly for the front and rear AGV trolleys. The principle of hooking is that the front trolley hook uses a sensor to measure the distance between itself and the rear trolley. When the rear trolley enters the range where the hook can be connected, the electromagnet assembly of the front trolley hook is powered on and off to achieve the connection and disconnection of the hook. This hook not only improves the automation level of equipment operation, but also has a simple structure, fast operating speed, and speeds up the production cycle of the assembly line.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: AGV front and rear trolley hook assembly, including front trolley hook and frame assembly, the front trolley hook is installed on the frame assembly, and the frame assembly is fixed to the front trolley frame by screw connection;

[0006] The front vehicle mounting bracket includes a hook clamp, an electromagnet mechanism, a proximity sensor, and a linkage mechanism. The hook clamp is connected to the U-shaped ring of the rear vehicle.

[0007] The proximity sensor is mounted on the front vehicle's mounting bracket and is used to measure the distance to the following vehicle;

[0008] The electromagnet mechanism is mounted on the frame assembly and is connected to the linkage mechanism. When energized, the electromagnet mechanism drives the linkage mechanism to lift the hook clamp to engage the U-shaped ring, and when de-energized, it drives the linkage mechanism to lower the hook clamp to disengage from the U-shaped ring.

[0009] Furthermore, the linkage mechanism includes a crank mechanism, shaft A, a suspended frame, a rod, a lower pressure roller, shaft B, a steel plate assembly, shaft C, and a spring;

[0010] Shaft A is interference-fitted onto the suspended frame and connected to the crank mechanism;

[0011] The rod passes through the suspended frame and is connected to the lower pressure roller; the lower pressure roller is located above the steel plate assembly and is used to press down the steel plate assembly.

[0012] The side plate of the steel plate assembly passes through shaft B, and shaft B is located below shaft C;

[0013] The spring connecting shaft C is used to generate torque when the electromagnet mechanism is in motion.

[0014] Furthermore, the crank mechanism in the linkage mechanism is directly connected to the electromagnet mechanism. When the electromagnet mechanism lifts, it drives the crank mechanism to rotate shaft A.

[0015] Furthermore, the suspended frame has pre-drilled holes, through which the rod is inserted and connected to the lower pressure roller, allowing the lower pressure roller to move along the surface of the steel plate assembly.

[0016] Furthermore, the steel plate assembly has a side plate, and the shaft B passes through the side plate, pushing the shaft B upward when the steel plate assembly tilts upward.

[0017] Furthermore, shaft B is located below shaft C. When shaft B moves upward, it pushes shaft C, causing the spring to rotate counterclockwise to lift the hook clamp. When the power is off, the spring rotates clockwise to push shaft C downward, causing shaft B to fall back down.

[0018] The advantages of this utility model are:

[0019] This utility model provides a hook device that uses electromagnetic and sensor-assisted operation. The principle of hooking is that the front vehicle hook uses a sensor to measure the distance between itself and the rear vehicle. When the rear vehicle enters the hook's connection range, the electromagnet component of the front vehicle hook is energized and de-energized to achieve hook connection and disengagement. This hook not only improves the automation level of equipment operation, but also has a simple structure, fast operation speed, and accelerates the production cycle of the assembly line. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0024] Figure 4This is a side view of the structure of this utility model.

[0025] Figure 5 for Figure 4 A cross-sectional structural diagram.

[0026] Figure 6 This is a schematic diagram of the connection structure between the hook pliers and the U-shaped ring in this utility model.

[0027] in:

[0028] 1. Hook clamps; 2. Pin mechanism; 3. Electromagnet mechanism;

[0029] 4. Proximity sensor; 5. Frame assembly; 6. Axis A;

[0030] 7. Crank mechanism; 8. Spring; 9. Suspended frame;

[0031] 10. Rod; 11. Shaft B; 12. Lower pressure roller;

[0032] 13. Steel plate assembly; 14. Shaft C; 15. U-ring. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Example 1:

[0036] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model. Figure 2 This is a schematic diagram of the structure of this utility model. Figure 3 This is a cross-sectional structural diagram of the present invention. Figure 4 This is a side view of the structure of this utility model. Figure 5 for Figure 4 A cross-sectional structural diagram. Figure 6 This is a schematic diagram of the connection structure between the hook clamp 1 and the U-shaped ring 15 in this utility model. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The AGV front and rear trolley hook assembly shown includes a front trolley hook-up component and a frame assembly 5. The front trolley hook-up component is mounted on the frame assembly 5, which is fixed to the front trolley frame by screws. The front trolley hook-up component includes a hook clamp 1, an electromagnet mechanism 2, a proximity sensor 4, and a linkage mechanism. The hook clamp 1 hooks with the U-shaped ring 15 of the rear trolley. The U-shaped ring 15 serves as a connection interface to receive the hook clamp 1 when it engages. The proximity sensor 4 is located on the front trolley hook-up component and is used to measure the distance to the rear trolley. It can collect the distance signal to the front trolley in real time. Its function is to trigger the hook-up process: when the rear trolley is detected to enter the hook-up range, a signal is sent to the control system to start or stop the electromagnet mechanism 2, achieving automated response. The frame component 5 serves as the mounting base for the front vehicle hook-up piece. It is fixed to the front vehicle frame by screwing, providing a detachable support structure to ensure stable transmission of traction and impact forces, ensure that the hook clamp 1 is accurately aligned with the rear vehicle U-ring 15, and withstand mechanical loads (such as the lifting force of the hook clamp 1) during hook-up, preventing deviation or loosening.

[0037] In this invention, the electromagnet mechanism 2 is mounted on the frame assembly 5. The electromagnet mechanism 2 is connected to the linkage mechanism and is used to drive the linkage mechanism to lift the hook clamp 1 to engage with the U-shaped ring 15 when energized, and to drive the linkage mechanism to lower the hook clamp 1 to disengage from the U-shaped ring 15 when de-energized. The electromagnet mechanism 2 acts as a power source, generating magnetic force when energized to perform the lifting action; the magnetic force disappears when the power is off. Its function is to convert electrical signals into mechanical motion, directly driving the linkage mechanism, thereby controlling the lifting (engaging with the U-shaped ring 15) or lowering (disengaging from the U-shaped ring 15) of the hook clamp 1, replacing manual operation.

[0038] The linkage mechanism in this utility model includes a crank mechanism 7, a shaft A6, a suspended frame 9, a rod 10, a lower pressure roller 12, a shaft B11, a steel plate assembly 13, a shaft C14, and a spring 8. The shaft A6 is interference-fitted onto the suspended frame 9 and connected to the crank mechanism 7. The function of the shaft A6 is to transmit the rotational motion of the crank mechanism 7 to the suspended frame 9, ensuring stable rotation without slippage. The rod 10 passes through the suspended frame 9 and is connected to the lower pressure roller 12. Specifically, the rod 10 passes through a hole in the suspended frame 9 and is connected to the lower pressure roller 12. The function of rod 10 is to connect the suspended frame 9 and the lower pressure roller 12, transmitting the movement of the suspended frame 9 to the lower pressure roller 12, causing the lower pressure roller 12 to move along the surface of the steel plate assembly 13. The lower pressure roller 12 is located above the steel plate assembly 13 and is used to press down on the steel plate assembly 13. The side plate of the steel plate assembly 13 passes through the shaft B11, and the shaft B11 is located below the shaft C14. When the steel plate assembly 13 tilts upward, the shaft B11 is lifted; its function is to transmit the tilting motion to the shaft C14, acting as an intermediate transmission component. The spring 8 is connected to the shaft C14 and is used to generate torque when the electromagnet mechanism 2 is activated. When the shaft C14 is lifted, the spring 8 rotates counterclockwise to generate torque; when the power is off, the spring 8 returns to its original position clockwise. Its function is to provide restoring force: storing energy when hooking (lifting the hook clamp 1) and releasing energy when disengaging (pushing down the shaft C14 to make the component fall back). The shaft C14 is located above the shaft B11 and is lifted by the shaft B11. Its function is to connect to spring 8 and transmit motion to spring 8, driving spring 8 to rotate.

[0039] In this invention, the linkage mechanism converts the linear motion of the electromagnet mechanism 2 into the lifting / lowering action of the hook clamp 1, achieving force transmission and motion amplification. The crank mechanism 7 is directly connected to the electromagnet mechanism 2. When the electromagnet is lifted, the crank mechanism 7 is driven to rotate, converting the vertical motion of the electromagnet into rotational motion and initiating subsequent linkages. The suspended frame 9 supports the shaft A6 and the lower pressure roller 12, with pre-drilled holes for inserting the rod 10. Its function is to provide a rigid support, maintaining the precise position of the shaft A6 and the lower pressure roller 12, and preventing motion deviation. The lower pressure roller 12 is located above the steel plate assembly 13 and connected to the rod 10. When the rod 10 moves, the lower pressure roller 12 applies downward pressure to the steel plate assembly 13; its function is to act as a pressure point, forcing one end of the steel plate assembly 13 to tilt upwards (away from the lower pressure roller 12), creating a lever effect. The steel plate assembly 13 has side plates, which tilt upwards away from the lower pressure roller 12 after being pressed down by it. The side plate passes through the shaft B11, and its function is to convert the pressure of the lower pressure roller 12 into an upward motion, pushing the shaft B11 upward, while absorbing the impact force to ensure smooth operation.

[0040] Working principle explanation:

[0041] As the following vehicle approaches the preceding vehicle, proximity sensor 4 monitors the distance in real time. Mounted on the preceding vehicle's mounting bracket, proximity sensor 4 continuously collects data on the distance between the two vehicles. When the following vehicle enters the preset connection range, a trigger signal is sent to the control system to initiate the coupling procedure. Upon receiving the signal, the control system energizes electromagnet mechanism 2, causing it to lift. The energized electromagnet generates a strong magnetic force, performing a vertical upward lifting action, converting the electrical signal into mechanical kinetic energy, directly driving the crank mechanism 7 connected to it. The crank mechanism 7 converts the vertical motion of the electromagnet into rotational motion, pushing shaft A6 to rotate. The rotation of shaft A6 drives the suspended frame 9 to move, causing the rod 10, which passes through its pre-drilled hole, to push the lower pressure roller 12 downwards. The lower pressure roller 12 acts as a pressure fulcrum, vertically pressing the steel plate assembly 13 below. Under the action of the lower pressure roller 12, the steel plate assembly 13 tilts upwards away from the pressure end. As it tilts, the shaft B11, which passes through its side plate, is simultaneously lifted. Shaft B11 moves upward, pushing shaft C14 above it, forcing spring 8 to rotate counterclockwise. The torsion of spring 8 generates torque, which, through the linkage mechanism, ultimately lifts hook clamp 1. During this lifting action, hook clamp 1 precisely inserts into the opening of the rear U-shaped ring 15, completing the mechanical locking (e.g., ...). Figure 6 (As shown in the connection diagram).

[0042] When disengagement is required, the sensors detect the need for the two vehicles to separate (e.g., reaching the destination or experiencing a malfunction) and send a feedback signal to the control system. After the electromagnet is de-energized, it loses its lifting force, releasing the drive to the linkage mechanism. Spring 8 changes from a counter-clockwise energized state to a clockwise released state, pushing shaft C14 back to its original position. Shaft C14 presses down, causing shaft B11 to fall back. Shaft B11 drives the steel plate assembly 13 back to its horizontal position. The lower pressure roller 12 retracts with the bar 10, releasing the pressure on the steel plate assembly 13. The hook clamp 1 falls back under the force of gravity and spring 8, disengaging from the U-shaped ring 15. All linkage components return to their initial positions, awaiting the next engagement command.

[0043] This invention achieves complete automated control through "sensor detection → signal triggering → electromagnet action → mechanical linkage → spring 8 reset", completely replacing manual intervention.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An AGV front and rear trolley hook assembly, characterized in that, It includes a front vehicle hitch and a frame assembly (5), the front vehicle hitch is mounted on the frame assembly (5), and the frame assembly (5) is fixed to the front vehicle frame by screws; The front vehicle hook-up assembly includes a hook clamp (1), an electromagnet mechanism (2), a proximity sensor (4), and a linkage mechanism. The hook clamp (1) is hooked to the rear vehicle's U-shaped ring (15). The proximity sensor (4) is mounted on the front vehicle's mounting bracket and is used to measure the distance to the rear vehicle; The electromagnet mechanism (2) is mounted on the frame assembly (5). The electromagnet mechanism (2) is connected to the linkage mechanism and is used to drive the linkage mechanism to lift the hook clamp (1) to engage the U-ring (15) when energized, and to drive the linkage mechanism to lower the hook clamp (1) to disengage from the U-ring (15) when de-energized.

2. The AGV front and rear trolley hook assembly according to claim 1, characterized in that: The linkage mechanism includes a crank mechanism (7), shaft A (6), suspended frame (9), rod (10), lower pressure roller (12), shaft B (11), steel plate assembly (13), shaft C (14) and spring (8); The shaft A (6) is interference-fitted onto the suspended frame (9) and connected to the crank mechanism (7); The rod (10) passes through the suspended frame (9) and is connected to the lower pressure roller (12); the lower pressure roller (12) is located above the steel plate assembly (13) and is used to press down the steel plate assembly (13); The side plate of the steel plate assembly (13) passes through shaft B (11), and shaft B (11) is located below shaft C (14); The spring (8) is connected to shaft C (14) to generate torque when the electromagnet mechanism (2) is activated.

3. The AGV front and rear trolley hook assembly according to claim 2, characterized in that: The crank mechanism (7) in the linkage mechanism is directly connected to the electromagnet mechanism (2). When the electromagnet mechanism (2) is lifted, it drives the crank mechanism (7) to rotate the shaft A (6).

4. The AGV front and rear trolley hook assembly according to claim 2, characterized in that: The suspended frame (9) has a pre-drilled hole, the rod (10) is inserted into the hole and connected to the lower pressure roller (12), so that the lower pressure roller (12) moves along the surface of the steel plate assembly (13).

5. The AGV front and rear trolley hook assembly according to claim 2, characterized in that: The steel plate assembly (13) has a side plate, and the shaft B (11) passes through the side plate, pushing the shaft B (11) upward when the steel plate assembly (13) tilts upward.

6. The AGV front and rear trolley hook assembly according to claim 2, characterized in that: The shaft B (11) is located below the shaft C (14). When the shaft B (11) moves upward, it pushes the shaft C (14), causing the spring (8) to rotate counterclockwise to lift the hook clamp (1). When the power is off, the spring (8) rotates clockwise to push the shaft C (14), causing the shaft B (11) to fall back.

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