AGV trolley quick-change tray mechanism

Abstract

The utility model belongs to the transportation technology field of vehicle, especially a kind of AGV dolly quick-change tray mechanism, including AGV dolly, the inside of AGV dolly is provided with lifting mechanism, the upper end of AGV dolly is provided with supporting plate, lifting mechanism is connected with supporting plate for driving supporting plate lifting movement;Roller assembly, the roller assembly is set on supporting plate;Tray assembly, the tray assembly is provided with two groups, two groups of tray assembly are symmetrically set on the both sides of supporting plate, the tray assembly is hinged with supporting plate by connecting assembly, the tray assembly can be mutually close and horizontally supported on roller assembly, or mutually away and shield on the both sides of roller assembly. Through the integrated setting roller assembly and tray assembly, the position of tray assembly can be quickly switched, a variety of carrying modes of AGV dolly are realized, for facing the adaptive carrying of a variety of carrying scenes in factory.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle transportation technology, and in particular relates to an AGV trolley quick pallet changing mechanism. Background Technology

[0002] AGVs (Automated Guided Vehicles) can be categorized into several types based on their handling methods and application scenarios when transporting goods. Among them, pallet transport and roller transport are two common methods, which differ significantly in application scenarios, equipment structure, and operation.

[0003] Pallet transport structure: AGVs use their own mechanisms to pick up or drop the entire pallet / box and then transport it away.

[0004] Roller conveyor structure: A set of motor-driven rollers or belts is installed above the AGV trolley. The AGV stops at the docking end of a fixed conveyor line (such as a roller conveyor or belt conveyor). By rotating its own rollers in the same direction, the AGV works together with the rollers at the docking end to move the goods laterally onto or unload them from the AGV.

[0005] Currently, AGVs have limited handling methods and cannot adapt to various transportation scenarios in factories. Single-function AGVs are unable to cope with the complex and ever-changing modern production and logistics environment. Pallet-type AGVs cannot directly interact with equipment that requires horizontal docking, such as automated production lines and assembly lines. Roller-type AGVs cannot handle standard pallets scattered on the ground or shelves. Utility Model Content

[0006] In view of the technical problems existing in the background art, this utility model provides an AGV trolley quick pallet changing mechanism.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] An AGV (Automated Guided Vehicle) quick-change pallet mechanism includes,

[0009] An AGV (Automated Guided Vehicle) trolley, wherein a lifting mechanism is installed inside the AGV trolley, and a tray is installed at the upper end of the AGV trolley. The lifting mechanism is connected to the tray to drive the tray to move up and down.

[0010] A roller assembly, wherein the roller assembly is disposed on a pallet;

[0011] The pallet assembly comprises two sets, which are symmetrically arranged on both sides of the pallet. The pallet assembly is hinged to the pallet via a connecting component. The pallet assemblies can be close to each other and horizontally supported on the roller assembly, or far apart from each other and shielded on both sides of the roller assembly.

[0012] Optionally, the idler assembly includes a U-shaped channel steel, a first bearing housing, and an idler roller. Two U-shaped channel steels are symmetrically arranged on the pallet. Several first bearing housings are arranged inside the U-shaped channel steel. A mandrel is arranged inside the idler roller. The two ends of the mandrel are rotatably arranged inside the first bearing housing.

[0013] Optionally, the connecting assembly includes a mounting plate, a first motor, a lead screw, a lead screw slider, and a connecting rod. The mounting plate is mounted on a support plate, and two lead screws are mounted on the mounting plate. The lead screws are double-helix lead screws, and two lead screw sliders are symmetrically arranged on each lead screw. The upper end of each lead screw slider is provided with a first hinge portion. One end of each lead screw is provided with a first pulley, and the two first pulleys are connected for transmission via a first belt. One end of one lead screw is connected for transmission to the first motor.

[0014] The pallet assembly includes a base plate and a pallet detachably mounted on the base plate. A bent second hinge is provided on one side of the base plate, and a third hinge is provided on the other side of the base plate. The first hinge is connected to the second hinge via a pin. One end of a connecting rod is connected to the third hinge via a pin. A U-shaped mounting base is provided on the outer side of the pallet, and an L-shaped swing arm is provided on the other end of the connecting rod. The swing arm is connected to the U-shaped mounting base via a pin.

[0015] Optionally, the base plate is detachably provided with a number of stepped shafts, and the tray is inserted into the stepped shafts.

[0016] Optionally, the U-shaped mounting base is disposed on the outside of the U-shaped channel steel, and the U-shaped channel steel is provided with a clearance groove corresponding to the U-shaped mounting base, and the connecting rod swings in the clearance groove.

[0017] Optionally, a plurality of U-shaped channels are evenly distributed on one side of the base plate. The U-shaped channels are correspondingly arranged with the idler rollers. When the pallet assemblies move away from each other, the U-shaped channels flip towards the idler rollers and accommodate the idler rollers in the U-shaped channels.

[0018] Optionally, the first pulley and the first belt are disposed on the bottom side of one of the mandrels.

[0019] Optionally, a number of idlers located between the two lead screws are driven by a drive assembly, which includes a second pulley and a second belt. Each spindle is fitted with two second pulleys, and two adjacent spindles are connected and driven by two second belts. One spindle is connected and driven by a second motor, which is located on the outer wall of the U-shaped through groove.

[0020] Optionally, the first belt and the second belt are respectively disposed on both sides of the idler roller.

[0021] Optionally, the mounting plate is provided with two guide grooves, and the lead screw slider is slidably disposed in the guide grooves.

[0022] This utility model has the following advantages and beneficial effects:

[0023] This utility model provides an AGV (Automated Guided Vehicle) quick-change pallet mechanism. By integrating roller and pallet components, it enables multiple handling methods for the AGV, adapting to various transportation scenarios in the factory.

[0024] When the pallet assemblies are close together and horizontally supported on the roller assemblies, their lifting and lowering movements can be controlled as a whole to handle standard pallets scattered on the ground or shelves. When the pallet assemblies are far apart and obstruct the sides of the roller assemblies, the pallet assemblies are used for limiting and guiding, while the roller assemblies are used for transfer, allowing direct interaction with automated production lines, assembly lines, and other equipment that requires lateral docking. This structure allows for rapid switching of the pallet assembly positions, enabling the AGV to adapt to the complex and ever-changing modern production and logistics environment. Attached Figure Description

[0025] Figure 1 This is one of the structural diagrams of the AGV trolley quick-change pallet mechanism in this utility model;

[0026] Figure 2 for Figure 1 Front view;

[0027] Figure 3 for Figure 2 Top view;

[0028] Figure 4 This is the second structural diagram of the AGV trolley quick-change pallet mechanism in this utility model;

[0029] Figure 5 for Figure 4 Top view;

[0030] Figure 6 This is the third structural diagram of the AGV trolley quick-change pallet mechanism in this utility model;

[0031] Figure 7 This is the fourth structural diagram of the AGV trolley quick-change pallet mechanism in this utility model;

[0032] Figure 8 for Figure 6 A magnified view of a portion of point a.

[0033] Figure 9 for Figure 7 A magnified view of a section at point b in the middle;

[0034] Figure 10This is a structural diagram of the tray assembly and connecting assembly in this utility model;

[0035] Figure 11 This is a front view of the tray assembly and connecting assembly in this utility model;

[0036] Figure 12 This is a structural diagram of the mounting plate, lead screw, and lead screw slider in this utility model;

[0037] Figure 13 This is one of the structural diagrams of the tray assembly in this utility model;

[0038] Figure 14 This is the second structural diagram of the tray assembly in this utility model.

[0039] Reference numerals: 1-AGV trolley, 11-pallet, 12-U-shaped channel steel, 121-avoidance groove, 13-U-shaped mounting base, 131-pin shaft, 2-idler roller, 21-drive assembly, 211-second pulley, 212-second belt, 22-second motor, 23-spindle, 24-first bearing seat, 3-mounting plate, 31-guide groove, 4-first motor, 41-second bearing seat, 42-lead screw, 43-lead screw slider, 44-first hinge, 45-first pulley, 46-first belt, 5-base plate, 51-U-shaped through groove, 52-third hinge, 53-cross groove, 54-second hinge, 6-pallet, 61-stepped shaft, 7-swing arm, 71-connecting rod. Detailed Implementation

[0040] 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. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] Example

[0043] like Figures 1 to 14 As shown, an AGV trolley quick-change pallet mechanism includes an AGV trolley 1, a roller assembly, and a pallet assembly.

[0044] The AGV (Automated Guided Vehicle) 1 serves as the power source for transporting goods. AGV 1 utilizes existing technology and undergoes no design modifications.

[0045] The AGV trolley 1 is equipped with a lifting mechanism, which can be implemented by means of electric cylinder, pneumatic cylinder, etc. The upper end of the AGV trolley 1 is equipped with a pallet 11, and the lifting mechanism is connected to the pallet 11 to drive the pallet 11 to move up and down.

[0046] The idler roller assembly is mounted on the pallet 11 and moves up and down synchronously with the pallet 11.

[0047] The pallet assembly is also mounted on the pallet plate 11 and moves up and down synchronously with the pallet plate 11. Two sets of pallet assemblies are provided, symmetrically arranged on both sides of the pallet plate 11. The pallet assemblies are hinged to the pallet plate 11 via connecting components, allowing them to approach each other and be horizontally supported on the roller assembly (e.g., ...). Figures 1-3 (as shown), or they are far apart from each other and obstruct each other on both sides of the idler assembly (such as...). Figure 4 and Figure 5 As shown in the figure, this allows for the adjustment of the position of the tray assembly.

[0048] This utility model provides an AGV quick-change pallet mechanism, which integrates roller assembly and pallet assembly to realize multiple handling methods for the AGV 1, and can adapt to various transportation scenarios in the factory.

[0049] like Figures 1-3 As shown, when the pallet assemblies are close to each other and horizontally supported on the roller assembly, the lifting and lowering movement of the pallet assemblies can be controlled as a whole to handle the standard pallets 6 on the shelf.

[0050] like Figure 4 and Figure 5 As shown, when the pallet assemblies are far apart from each other and block the sides of the roller assembly, the pallet assemblies are used to limit the goods on the roller assembly, and the roller assembly is used for transfer, directly interacting with equipment that requires horizontal docking, such as automated production lines and assembly lines.

[0051] This structure allows for quick switching of the pallet component position, enabling the AGV to adapt to the complex and ever-changing modern production and logistics environment.

[0052] like Figures 1 to 14 As shown, the idler assembly includes a U-shaped channel steel 12, a first bearing seat 24, and an idler roller 2. Two U-shaped channel steels 12 are symmetrically arranged on the support plate 11. Several first bearing seats 24 are evenly distributed along the length direction inside the U-shaped channel steel 12. A spindle 23 is arranged inside the idler roller 2. The two ends of the spindle 23 are rotatably arranged inside the first bearing seat 24 to realize the installation of the idler roller 2.

[0053] like Figures 1 to 14As shown, the connecting assembly includes a mounting plate 3, a first motor 4, a lead screw 42, a lead screw slider 43, and a connecting rod 71. The mounting plate 3 is mounted on a support plate 11 and positioned between two U-shaped channel steels 12. Two lead screws 42 are mounted on the mounting plate 3 and connected to a second bearing seat 41 on the mounting plate 3, enabling the lead screws 42 to rotate. The lead screws 42 are double-helix lead screws, each with two symmetrically arranged lead screw sliders 43. A first hinge portion 44 is provided at the upper end of each lead screw slider 43. A first pulley 45 is provided at one end of each lead screw 42, and the two first pulleys 45 are connected and driven by a first belt 46. One end of one lead screw 42 is connected and driven by the first motor 4. When the first motor 4 starts, the first belt 46 drives the two lead screws 42 to rotate synchronously, thereby controlling the lead screw sliders 43 on the lead screws 42 to move closer or further apart.

[0054] Furthermore, the mounting plate 3 is provided with two guide grooves 31, and the lead screw slider 43 is slidably disposed in the guide grooves 31 to achieve precise sliding guidance.

[0055] like Figures 1 to 14 As shown, the pallet assembly includes a base plate 5 and a pallet 6 detachably mounted on the base plate 5. A bent second hinge portion 54 is provided at one bottom end of the base plate 5, and a third hinge portion 52 is provided at the other bottom end of the base plate 5. A transverse groove 53 is provided on the base plate 5, corresponding to the second hinge portion 54. The purpose of this is that when the connecting rod 71 rotates to a horizontal state, the connecting rod 71 can avoid contact with the base plate 5 by being positioned within the transverse groove 53. A first hinge portion 44 is connected to the second hinge portion 54 via a pin, and one end of the connecting rod 71 is connected to the third hinge portion 52 via a pin. A U-shaped mounting seat 13 is provided on the outer side of the pallet 11, and a pin 131 is provided on the U-shaped mounting seat 13. An L-shaped swing arm 7 is provided at the other end of the connecting rod 71, and the swing arm 7 is connected to the U-shaped mounting seat 13 via the pin 131. The swing arm 7 slides close to the inner wall of the U-shaped mounting seat 13 to achieve swing limit and prevent lateral deviation during swinging.

[0056] Furthermore, the U-shaped mounting base 13 is located on the outside of the U-shaped channel steel 12, and the U-shaped channel steel 12 is provided with a relief groove 121 corresponding to the U-shaped mounting base 13. The connecting rod 71 swings in the relief groove 121 and will not collide with the U-shaped channel steel 12.

[0057] This structural design is simple and ingenious, and can quickly drive the movement of the tray assembly to adjust its position.

[0058] like Figures 1-3As shown, when the two lead screw sliders 43 approach each other, the linked pallet assembly approaches each other and flips to a horizontal state. At this time, the connecting rod 71 flips into the clearance groove 121, and the bottom side of the pallet assembly (i.e., the bottom plate 5) fits against the upper end face of the idler roller 2, achieving reliable support. In this way, the lifting mechanism can control the lifting and lowering movement of the pallet 11, the idler roller assembly, and the pallet assembly as a whole, realizing the pallet assembly's cargo transportation operation.

[0059] like Figure 4 and Figure 5 As shown, when the two lead screw sliders 43 move away from each other, the linked pallet assemblies move away from each other and flip to an inclined state. At this time, the connecting rod 71 flips to the outside of the clearance groove 121, and the upper side of the pallet assembly (i.e., pallet 6) flips to an inclined state, located above the idler roller 2. At this time, the idler roller 2 can be used for carrying and transporting goods, while the pallet assemblies on both sides are used for limiting the movement. In this way, the lifting mechanism can control the lifting and lowering movement of the pallet 11, the idler roller assembly, and the pallet assembly as a whole, realizing the carrying and transporting operation after the idler roller assembly is connected to the production line.

[0060] Furthermore, the base plate 5 is detachably equipped with several stepped shafts 61, and the tray 6 is inserted into the stepped shafts 61, so that there is a certain gap between the tray 6 and the base plate 5. Figure 2 As shown, this allows the entire device (pallet 11 and base plate 5) to be lifted and raised, lifting the pallet 6 on the shelf / pane and transferring the pallet 6 on the shelf / pane to the base plate 5 on the AGV trolley 1, thus realizing the transportation of the pallet 6 and the items on the pallet 6.

[0061] like Figure 4 As shown, several U-shaped channels 51 are evenly distributed on one side of the base plate 5. The U-shaped channels 51 are correspondingly arranged with the idler rollers 2. When the pallet assemblies move away from each other, the U-shaped channels 51 flip towards the idler rollers 2, and the idler rollers 2 are accommodated in the U-shaped channels 51. This design allows the pallet assembly to have a larger rotation adjustment angle, and after the pallet assembly rotates, it can avoid collisions with the idler rollers 2 by passing through the U-shaped channels 51.

[0062] like Figure 6 and Figure 8 As shown, the first pulley 45 and the first belt 46 are arranged on the bottom side of one of the spindles 23 to achieve compact installation and avoid motion interference with the spindle 23.

[0063] like Figure 7 and Figure 9As shown, several idler rollers 2 located between the two lead screws 42 are driven by a drive assembly 21, that is, several idler rollers 2 located between the two U-shaped mounting seats 13 are driven by the drive assembly 21. The drive assembly 21 includes a second pulley 211 and a second belt 212. Each spindle 23 is fitted with two second pulleys 211. Two adjacent spindles 23 are connected and driven by two second belts 212. One spindle 23 is connected and driven by a second motor 22, which is located on the outer wall of the U-shaped through groove 51. The rotation of the several idler rollers 2 can be controlled by the second motor 22 to load and unload goods.

[0064] Furthermore, the first belt 46 and the second belt 212 are respectively arranged on both sides of the idler roller 2, so that they are installed in a way that avoids each other, and are installed on both sides of the idler roller 2 to achieve a compact installation.

[0065] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change pallet mechanism for AGV (Automated Guided Vehicle) trolleys, characterized in that: include, An AGV (Automated Guided Vehicle) trolley, wherein a lifting mechanism is installed inside the AGV trolley, and a tray is installed at the upper end of the AGV trolley. The lifting mechanism is connected to the tray to drive the tray to move up and down. A roller assembly, wherein the roller assembly is disposed on a pallet; The pallet assembly comprises two sets, which are symmetrically arranged on both sides of the pallet. The pallet assembly is hinged to the pallet via a connecting component. The pallet assemblies can be close to each other and horizontally supported on the roller assembly, or far apart from each other and shielded on both sides of the roller assembly.

2. The AGV trolley quick-change pallet mechanism according to claim 1, characterized in that: The idler assembly includes a U-shaped channel steel, a first bearing seat, and an idler roller. Two U-shaped channel steels are symmetrically arranged on the pallet. Several first bearing seats are arranged inside the U-shaped channel steel. A mandrel is arranged inside the idler roller. The two ends of the mandrel are rotatably arranged inside the first bearing seats.

3. The AGV trolley quick-change pallet mechanism according to claim 2, characterized in that: The connecting assembly includes a mounting plate, a first motor, a lead screw, a lead screw slider, and a connecting rod. The mounting plate is mounted on a support plate and has two lead screws, which are double-helix lead screws. Each lead screw has two symmetrically arranged lead screw sliders, and the upper end of each lead screw slider has a first hinge part. One end of each lead screw has a first pulley, and the two first pulleys are connected for transmission via a first belt. One end of one of the lead screws is connected for transmission to the first motor. The pallet assembly includes a base plate and a pallet detachably mounted on the base plate. A bent second hinge is provided on one side of the base plate, and a third hinge is provided on the other side of the base plate. The first hinge is connected to the second hinge via a pin. One end of a connecting rod is connected to the third hinge via a pin. A U-shaped mounting base is provided on the outer side of the pallet, and an L-shaped swing arm is provided on the other end of the connecting rod. The swing arm is connected to the U-shaped mounting base via a pin.

4. The AGV trolley quick-change pallet mechanism according to claim 3, characterized in that: The base plate is detachably provided with several stepped shafts, and the tray is inserted into the stepped shafts.

5. The AGV trolley quick-change pallet mechanism according to claim 3, characterized in that: The U-shaped mounting base is located on the outside of the U-shaped channel steel, and the U-shaped channel steel has a clearance groove corresponding to the U-shaped mounting base. The connecting rod swings in the clearance groove.

6. The AGV trolley quick-change pallet mechanism according to claim 3, characterized in that: The base plate has several U-shaped channels evenly distributed on one side. The U-shaped channels are arranged corresponding to the idler rollers. When the pallet assemblies move away from each other, the U-shaped channels flip towards the idler rollers and accommodate the idler rollers in the U-shaped channels.

7. The AGV trolley quick-change pallet mechanism according to claim 3, characterized in that: The first pulley and the first belt are located on the bottom side of one of the spindles.

8. The AGV trolley quick-change pallet mechanism according to claim 7, characterized in that: Several idlers located between two lead screws are driven by a drive assembly, which includes a second pulley and a second belt. Two second pulleys are fitted on each spindle, and two adjacent spindles are connected and driven by two second belts. One spindle is connected and driven by a second motor, which is located on the outer wall of the U-shaped through groove.

9. The AGV trolley quick-change pallet mechanism according to claim 8, characterized in that: The first belt and the second belt are respectively disposed on both sides of the idler roller.

10. The AGV trolley quick-change pallet mechanism according to claim 8, characterized in that: The mounting plate is provided with two guide grooves, and the lead screw slider is slidably disposed in the guide grooves.

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