A narrow-lane AGV with a forklift mechanism

Abstract

This utility model discloses a narrow aisle AGV with an extension mechanism, including a base, a lifting frame, and forks. The lifting frame is equipped with a lifting unit, and a central beam is located in the middle of the upper part of the base. Drive chambers are located on both sides of the upper part of the base, and a track is provided between the drive chambers and the central beam. A first motor is located in the drive chamber, and a sprocket assembly and a first chain are provided on the side wall of the track facing the drive chamber. The first chain is connected end to end, and the first motor drives the first chain to move through the sprocket assembly. The first chain is equipped with a connecting plate, which is fixedly connected to the bottom of the lifting frame. Drive steering wheels are located at both ends of the central beam. The narrow aisle AGV with extension mechanism of this utility model uses a first chain and a sprocket assembly to realize the extension and retraction of the forks. It has low processing precision requirements, is easy to assemble and maintain, and the first chain can swing up and down, and with the track to limit the forks, the forks can float up and down to avoid jamming when encountering uneven ground conditions.

Description

Technical Field

[0001] This utility model relates to honeycomb paperboard production technology, specifically a narrow-lane AGV with an extension fork mechanism. Background Technology

[0002] In the logistics industry, AGVs are widely used, and various types of AGVs have emerged. Narrow aisle forklift AGVs are also a type of AGV. They are automated guided vehicles designed specifically for narrow passages and are mainly used for warehousing logistics and workshop handling. They are characterized by small turning radius, low passage width requirements, and high handling efficiency.

[0003] Existing narrow aisle forklift AGVs use forklift movement to pick up and put away goods. The industry generally uses rack and pinion drives to extend and retract the forks. However, rack and pinion drives require high precision in the machining and assembly of the rack and pinion, resulting in high costs, difficult maintenance, and a high risk of jamming on uneven ground. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a narrow aisle AGV with an extension fork mechanism. It adopts a first chain sprocket drive, has low processing precision requirements, is easy to assemble and maintain, and can be used in working conditions with undulating ground.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: A narrow aisle AGV with an extension mechanism includes a base, a lifting frame, and forks. The lifting frame is equipped with a lifting unit, which drives the forks to rise and fall. A middle beam is provided in the middle of the upper part of the base. Drive chambers are provided on both sides of the upper part of the base. A track is provided between the drive chamber and the middle beam. The track is used to guide the movement of the forks. A first motor is provided in the drive chamber. A sprocket assembly and a first chain are provided on the side wall of the track facing the drive chamber. The first chain is connected end to end. The first motor drives the first chain to move through the sprocket assembly. The first chain is provided with a connecting plate. The connecting plate is fixedly connected to the bottom of the lifting frame. Drive steering wheels are provided at both ends of the middle beam. The bottom of the drive steering wheels passes through the base and contacts the ground.

[0006] Preferably, the drive compartment is equipped with a storage battery.

[0007] Preferably, the two drive wheels are provided with casters on both sides, and the bottom of the casters passes through the base and contacts the ground.

[0008] Preferably, the sprocket assembly includes a drive sprocket and two guide sprockets. The drive sprocket is located in the middle of the track sidewall and is connected to a first motor. The two guide sprockets are rotatably connected to both ends of the track sidewall. The first chain connects the drive sprocket and the two guide sprockets.

[0009] Preferably, the bottom of the forks is rotatably connected to a roller, and the bottom of the roller contacts the ground.

[0010] Preferably, a platform is provided above the forks.

[0011] Preferably, the lifting unit includes a second motor, a drive sprocket, and a second chain. The drive sprocket is located on the top of the lifting frame. The second motor is fixed to the lifting frame and drives the drive sprocket to rotate. One end of the second chain is fixed to the lifting frame, and the other end of the second chain passes upward around the drive sprocket and is fixedly connected to the forks. The forks are provided with sliders at both ends on the side facing the lifting frame. The sliders are slidably engaged with guide rails, and the two guide rails are arranged parallel to each other on both sides of the lifting frame.

[0012] In summary, this utility model achieves the following technical effects: This utility model discloses a narrow aisle AGV with an extension mechanism. It uses a first chain and sprocket assembly to extend and retract the forks. It has low processing precision requirements, is easy to assemble and maintain. Moreover, the first chain can swing up and down and, together with the track, limits the forks, so that when encountering uneven ground conditions, the forks can float up and down to avoid jamming. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the AGV with a fork extension mechanism in a narrow alleyway according to this utility model; Figure 2 This is a schematic diagram of the structure of the AGV with a fork extension mechanism in a narrow alleyway according to this utility model; Figure 3 This is a schematic diagram of the base of the narrow aisle AGV with a fork extension mechanism according to this utility model. Figure 4 This is a three-dimensional structural diagram of the base of the narrow aisle AGV with an extension mechanism according to this utility model. Explanation of reference numerals in the accompanying drawings: 1. Base; 11. Drive wheel; 12. Caster wheel; 13. Rail; 14. Intermediate beam; 15. Drive chamber; 16. First motor; 17. Drive sprocket; 18. First chain; 19. Guide sprocket; 20. Tensioner sprocket; 22. Battery; 3. Forks; 4. Platform; 5. Lifting frame; 6. Second chain. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0017] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly 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 or an electrical 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly 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," "on top of," and "over" 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.

[0020] Example 1: like Figure 1-4 As shown, a narrow aisle AGV with an extension mechanism includes a base 1, a lifting frame 5, and forks 3. The lifting frame 5 is equipped with a lifting unit, which drives the forks 3 to rise and fall. A middle beam 14 is provided in the middle of the upper part of the base 1. Drive chambers 15 are provided on both sides of the upper part of the base 1. A track 13 is provided between the drive chamber 15 and the middle beam 14. The track 13 is used to guide the movement of the forks 3. A first motor 16 is provided in the drive chamber 15. A sprocket assembly and a first chain 18 are provided on the side wall of the track 13 facing the drive chamber 15. The first chain 18 is connected end to end. The first motor 16 drives the first chain 18 to move through the sprocket assembly. The first chain 18 is provided with a connecting plate, which is fixedly connected to the bottom of the lifting frame 5. Drive steering wheels 11 are provided at both ends of the middle beam 14. The bottom of the drive steering wheels 11 passes through the base 1 and contacts the ground.

[0021] The steering wheel consists of a drive motor and a steering motor. A servo system controls the linear speed (forward / backward) and steering angle (direction adjustment), and a transmission mechanism (such as a gear set or synchronous belt) transmits power to the wheel hub. The dual steering wheel system achieves complex trajectories such as translation and rotation through differential control.

[0022] The narrow aisle AGV with an extension mechanism in this utility model uses a first chain 18 and a sprocket assembly to extend and retract the forks 3. It has low requirements for machining accuracy, is easy to assemble and maintain. Moreover, the first chain 18 can swing up and down, and together with the track 13, it can limit the forks 3, so that when encountering uneven ground conditions, the forks 3 can float up and down to avoid jamming.

[0023] The drive chamber 15 is equipped with a storage battery 22. The drive chamber 15 is also equipped with a control component and an interface. The interface can be used to plug in a charging head. The control component is connected to the interface, the storage battery 22, the first motor 16, the second motor and the drive steering wheel 11 to control the working status of the first motor 16, the second motor and the drive steering wheel 11, so as to realize the movement, steering and material picking and placing of the AGV.

[0024] Two drive wheels 11 are provided with casters 12 on both sides, and the bottom of the casters 12 passes through the base 1 and contacts the ground; the casters 12 can assist the rotation and steering of the drive wheels 11.

[0025] The sprocket assembly includes a drive sprocket 17 and two guide sprockets 19. The drive sprocket 17 is located in the middle of the side wall of the track 13 and is connected to the first motor 16. The two guide sprockets 19 are rotatably connected to both ends of the side wall of the track 13. The first chain 18 connects the drive sprocket 17 and the two guide sprockets 19.

[0026] A tensioning sprocket 20 is provided between the drive sprocket 17 and the guide sprocket 19. The tensioning sprocket 20 is rotatably connected to the adjusting block. The adjusting block has strip holes at its four corners, and fixing bolts are provided in the strip holes. The fixing bolts are threaded into the side wall of the drive chamber 15 to fix the adjusting block to the side wall of the drive chamber 15. When adjusting the tension of the first chain 18, it is only necessary to loosen the fixing bolts so that the adjusting block moves along the direction of the strip holes, and then tighten the fixing bolts.

[0027] The bottom of the fork 3 is rotatably connected to a roller, and the bottom of the roller is in contact with the ground.

[0028] A platform 4 is provided above the forks 3.

[0029] The lifting unit includes a second motor, a drive sprocket, and a second chain 6. The drive sprocket is located on the top of the lifting frame 5. The second motor is fixed to the lifting frame 5 and drives the drive sprocket to rotate. One end of the second chain 6 is fixed to the lifting frame 5, and the other end of the second chain 6 passes upward around the drive sprocket and is fixedly connected to the fork 3. The fork 3 has sliders at both ends facing the lifting frame 5. The sliders slide and engage with guide rails. The two guide rails are arranged parallel to each other on both sides of the lifting frame 5. When the fork 3 is raised or lowered, it is only necessary to control the second motor to drive the drive sprocket to rotate, so that the second sprocket drives the fork 3 to rise or fall.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A narrow aisle AGV having a diverging mechanism, characterized by, The device includes a base, a lifting frame, and forks. The lifting frame is equipped with a lifting unit that drives the forks to rise and fall. A central beam is located in the middle of the upper part of the base. Drive chambers are located on both sides of the upper part of the base. A track is provided between the drive chambers and the central beam to guide the movement of the forks. A first motor is located in the drive chamber. A sprocket assembly and a first chain are provided on the side wall of the track facing the drive chamber. The first chain is connected end to end. The first motor drives the first chain to move through the sprocket assembly. The first chain is equipped with a connecting plate, which is fixedly connected to the bottom of the lifting frame. Drive steering wheels are located at both ends of the central beam. The bottom of the drive steering wheels passes through the base and contacts the ground.

2. The narrow aisle AGV with a stretch mechanism of claim 1, wherein, The drive compartment is equipped with a storage battery.

3. The AGV with the stretch mechanism according to claim 1, characterized in that, Two drive wheels are equipped with casters on both sides, and the bottom of the casters passes through the base and contacts the ground.

4. The AGV with a stretch mechanism according to claim 1, characterized in that, The sprocket assembly includes a drive sprocket and two guide sprockets. The drive sprocket is located in the middle of the track sidewall and is connected to a first motor. The two guide sprockets are rotatably connected to both ends of the track sidewall. The first chain connects the drive sprocket and the two guide sprockets.

5. A narrow-lane AGV with a fork extension mechanism according to claim 1, characterized in that, The bottom of the forks is rotatably connected to rollers, and the bottom of the rollers is in contact with the ground.

6. A narrow-lane AGV with a fork extension mechanism according to claim 1, characterized in that, A platform is provided above the forks.

7. A narrow-lane AGV with a fork extension mechanism according to claim 1, characterized in that, The lifting unit includes a second motor, a drive sprocket, and a second chain. The drive sprocket is located on the top of the lifting frame. The second motor is fixed to the lifting frame and drives the drive sprocket to rotate. One end of the second chain is fixed to the lifting frame, and the other end of the second chain passes upward around the drive sprocket and is fixedly connected to the forks. The forks are provided with sliders at both ends on the side facing the lifting frame. The sliders are slidably engaged with guide rails, and the two guide rails are arranged parallel to each other on both sides of the lifting frame.

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