An automated guided vehicle drive unit

Abstract

This invention discloses an automated guided vehicle (AGV) drive unit, comprising a fixed plate, a base frame, and a rotation detection structure. A fixed sleeve is fixedly mounted on one side of the fixed plate. A drive wheel is rotatably mounted on the base frame. The base frame is connected to the fixed sleeve via the rotation detection structure. The rotation detection structure includes a rotation mechanism and a potentiometer. The rotation mechanism is coaxially mounted within the fixed sleeve. One end of the rotation mechanism is fixed to the base frame, and the other end is rotatably mounted within the fixed sleeve. The potentiometer is connected to the rotation mechanism. This design ensures that the AGV is small enough to handle materials in confined spaces while also providing steering detection capabilities for precise control of the AGV's drive angle.

Description

Technical Field

[0001] This invention relates to the field of automated guided vehicles (AGVs), and more specifically to an AGV drive unit. Background Technology

[0002] Automated Guided Vehicles (AGVs) are transport vehicles equipped with electromagnetic or optical automatic guidance devices, capable of traveling along a predetermined guide path, and possessing safety protection and various transfer functions. AGVs fall under the category of wheeled mobile robots. In industrial applications, they are driverless transport vehicles powered by rechargeable batteries. Their movement and behavior are typically controlled by a computer, or their movement is established using electromagnetic tracks attached to the floor. The AGV moves and operates according to the information conveyed by these tracks.

[0003] In existing technologies, the drive unit of an automated guided vehicle (AGV) is the power source for the AGV, and the size of the drive unit determines the size of the AGV. In some special situations, it is necessary to use AGVs that are as small as possible to ensure that they can handle materials in a confined space. However, small AGVs have limited functionality and lack steering detection, making it impossible to detect and accurately control the drive angle of the AGV. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the small-sized automated guided vehicles in the prior art have limited functions and do not have steering function detection, which makes it impossible to detect and accurately control the driving angle of the automated guided vehicles.

[0005] Therefore, the present invention proposes an automated guided vehicle drive unit, comprising:

[0006] A fixing plate is fixedly fitted with a fixing sleeve on one side;

[0007] The base frame has a rotating drive wheel mounted on it.

[0008] Rotation detection structure, including rotation structure and potentiometer;

[0009] A rotating structure is coaxially disposed within the fixed sleeve; one end of the rotating structure is fixedly disposed on the base frame, and the other end is rotatably disposed within the fixed sleeve.

[0010] A potentiometer is connected to the rotating structure.

[0011] Furthermore, the rotating structure includes a rotating component and a central shaft;

[0012] The fixed end of the rotating component is fixedly mounted on the base frame; the fixed end is provided with a mounting groove;

[0013] The central shaft is coaxially disposed within the rotating component; one end of the central shaft is provided with a mating part, and the other end is provided with an offset part; the mating part is engaged in the mounting groove; a bearing sleeve is coaxially sleeved on the offset part, and a first synchronous wheel is synchronously rotated on the bearing sleeve; a second synchronous wheel is rotatably disposed on the fixed plate, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt; the second synchronous wheel is coaxially connected to the potentiometer.

[0014] Furthermore, it also includes a support member; the support member is fixedly mounted on the fixing plate; the support member and the fixing sleeve are respectively located on both sides of the fixing plate;

[0015] A lifting pad is fixedly installed on the support member. A through hole coaxial with the rotating member is opened on the lifting pad. The through hole is suitable for the lifting member to pass through.

[0016] The rotating structure also includes an elastic element, which is disposed inside the rotating component and sleeved on the central shaft; one end of the elastic element abuts against the rotating component, and the other end abuts against the first synchronous wheel; the elastic element applies an elastic force to the rotating component away from the fixed plate.

[0017] A lifting hole is coaxially formed at one end of the central shaft corresponding to the through hole, and the lifting member is detachably connected to the lifting hole.

[0018] Furthermore, it also includes a bearing; the bearing is coaxially sleeved on the bearing sleeve; one side of the bearing abuts against the lifting pad, and the other side abuts against the bearing sleeve.

[0019] Furthermore, the lifting hole is a threaded hole.

[0020] Furthermore, the offset portion is provided with at least one plane.

[0021] Furthermore, the rotating structure also includes a pin; the fixed end of the rotating component has a through hole corresponding to the pin, and the axis of the through hole is perpendicular to the axis of the rotating component; the pin is fixedly mounted on the base frame.

[0022] Furthermore, at least one fastener is fixedly installed on the base frame; the fastener has a mounting hole for the pin to pass through, and the mounting hole and the through hole are coaxially arranged.

[0023] A retaining element is provided on the pin shaft, and the retaining element is fixedly mounted on the fixing element.

[0024] Furthermore, it also includes a limiting ring, which is fixedly mounted on the support member and coaxially sleeved on the bearing.

[0025] Furthermore, it also includes a bushing; the bushing is fixedly disposed inside the fixed sleeve, the outer surface of the bushing is in contact with the inner surface of the fixed sleeve, and the inner surface of the bushing is in contact with the outer surface of the rotating component.

[0026] The technical solution of this invention has the following advantages:

[0027] 1. The automated guided vehicle (AGV) drive unit provided by this invention includes a fixed plate, a base frame, and a rotation detection structure. A fixed sleeve is fixedly mounted on one side of the fixed plate. A drive wheel is rotatably mounted on the base frame. The base frame is connected to the fixed sleeve via the rotation detection structure. The rotation detection structure includes a rotation mechanism and a potentiometer. The rotation mechanism is coaxially mounted within the fixed sleeve. One end of the rotation mechanism is fixedly mounted on the base frame, and the other end is rotatably mounted within the fixed sleeve. The potentiometer is connected to the rotation mechanism.

[0028] This automated guided vehicle (AGV) drive unit has a mounting plate adapted to be fixed to the AGV. A base frame is connected to the mounting plate via a rotation detection structure. When the drive wheels on the base frame move, the base frame moves, further driving the mounting plate to move the AGV. The rotation detection structure includes a rotating mechanism and a potentiometer. One end of the rotating mechanism is fixed to the base frame, while the other end rotatably mounts inside a fixed sleeve. When the drive wheels steer via differential speed, the base frame rotates synchronously with the drive wheels, meaning the rotation angle of the base frame is the same as the steering angle of the drive wheels. The base frame further drives the rotating mechanism to rotate synchronously. The rotating mechanism is connected to the potentiometer, transmitting rotation data to the potentiometer, which then detects the steering angle of the AGV drive unit. This design ensures that the AGV is compact enough for material handling in confined spaces while also providing steering detection functionality for precise control of the AGV's drive angle.

[0029] 2. The automatic guided vehicle drive unit provided by this invention includes a rotating component and a central shaft. The rotating component is coaxially mounted within a fixed sleeve, and its fixed end is fixedly mounted on a base frame. A mounting groove is formed at the fixed end of the rotating component. The central shaft is coaxially mounted within the rotating component. One end of the central shaft has a mating part, and the other end has an offset part. The mating part is engaged in the mounting groove, allowing the rotating component to rotate synchronously with the central shaft. A bearing sleeve is coaxially fitted onto the offset part, and a first synchronous wheel is synchronously mounted on the bearing sleeve. A second synchronous wheel is rotatably mounted on a fixed plate, and the first and second synchronous wheels are connected via a synchronous belt. A potentiometer is coaxially connected to the second synchronous wheel. When the drive wheel turns, it drives the base frame to rotate synchronously. Since the fixed end of the rotating component is fixedly mounted on the base frame, the rotation of the base frame further drives the rotating component to rotate within the fixed sleeve. Because the mating part of the central shaft is engaged in the mounting groove, the rotating component, during its rotation, further drives the central shaft to rotate synchronously. An offset section is provided at one end of the central shaft, and a bearing sleeve is fitted onto the offset section. A first synchronous pulley is synchronously mounted on the bearing sleeve. When the central shaft rotates, it drives the bearing sleeve and the first synchronous pulley to rotate synchronously. The first synchronous pulley drives a second synchronous pulley to rotate via a synchronous belt. The second synchronous pulley drives a potentiometer, which detects the steering angle of the automated guided vehicle's drive unit. This design ensures that the rotation detection structure occupies a small volume while facilitating the detection and precise control of the automated guided vehicle's drive angle.

[0030] 3. The automated guided vehicle drive unit provided by the present invention further includes a support member, which is fixedly disposed on one side of a fixed plate. The support member and the fixed sleeve are respectively disposed on both sides of the fixed part. A lifting pad is fixedly disposed on the support member, and a through hole is formed on the lifting pad. The through hole is coaxially disposed with the rotating member and is suitable for the lifting member to pass through. The rotating structure also includes an elastic member, which is disposed inside the rotating member. The elastic member is sleeved on the central shaft. One end of the elastic member abuts against the rotating member, and the other end of the elastic member abuts against the first synchronous wheel. The elastic member applies an elastic force to the rotating member away from the fixed plate. A lifting hole is formed coaxially with the through hole at one end of the central shaft, and the lifting member is detachably connected to the lifting hole. The lifting hole is provided on the central shaft, and the lifting member can pass through the through hole of the lifting pad into the lifting hole. When the lifting member is connected to the lifting hole, the operator can control the lifting member to pull the central shaft towards the fixed plate, that is, the base frame and the drive wheel move towards the fixed plate, so that the drive wheel is lifted off the ground, thereby lifting the drive wheel. At this point, auxiliary wheels can be used to support the automated guided vehicle (AGV) and push it away from the work area for offline maintenance. The central shaft allows for simultaneous monitoring of the AGV's drive unit's steering angle and lifting function. An elastic element is fitted onto the central shaft; when the lifting component separates from the lifting hole, the elastic element applies an elastic force away from the fixed plate to the rotating components, causing the base frame and drive wheels to return to their original positions. The elastic element on the central shaft also provides cushioning and shock absorption for the AGV through its up-and-down movement.

[0031] 4. The automated guided vehicle drive unit provided by the present invention further includes a bearing. The bearing is coaxially sleeved on a bearing sleeve, and the bearing is disposed between the lifting pad and the bearing sleeve. One side of the bearing abuts against the lifting pad, and the other side abuts against the bearing sleeve. By providing a bearing sleeve on the bearing sleeve, dry friction between the central shaft, rotating parts, first synchronous pulley, or bearing sleeve and the support members is prevented when they rotate, thus avoiding wear of the central shaft, rotating parts, first synchronous pulley, or bearing sleeve due to friction.

[0032] 5. The automatic guided vehicle drive unit provided by the present invention has a threaded hole for the lifting hole and a threaded rod at the mating point between the lifting member and the lifting hole. By rotating the lifting member, the central shaft can be moved away from or closer to the fixed plate to facilitate the adjustment of the lifting and lowering of the drive wheel.

[0033] 6. The automatic guided vehicle drive unit provided by the present invention has at least one plane in the offset part. The bearing sleeve is sleeved on the offset part of the central shaft. The plane ensures that the bearing sleeve rotates synchronously with the central shaft, further ensuring that the rotation angle of the first synchronous wheel is the same as the rotation angle of the central shaft, and further ensuring that the potentiometer measures the rotation angle accurately.

[0034] 7. The automated guided vehicle drive unit provided by the present invention further includes a pin in its rotating structure. A through hole is formed at the fixed end of the rotating component corresponding to the pin. The axis of the through hole is perpendicular to the axis of the rotating component. The pin is fixedly mounted on the base frame. By passing the pin through the through hole, the rotating component is fixed to the base frame, ensuring that the rotating component rotates synchronously with the base frame, and further ensuring the accuracy of the potentiometer in measuring the rotation angle of the automated guided vehicle drive unit.

[0035] 8. The automated guided vehicle drive unit provided by the present invention includes at least one fixing member fixedly mounted on the base frame. The fixing member has a mounting hole, which is coaxially arranged with a through hole. A pin can pass through both the mounting hole and the through hole. Furthermore, a retaining element is provided on the pin, and the retaining element is fixedly mounted on the fixing member. By having the pin pass through the mounting hole of the fixing member and the through hole of the rotating component, the rotating component is securely fixed to the base frame, allowing the rotating component to rotate synchronously with the base frame. Simultaneously, the retaining element on the pin prevents the pin from moving axially along the through hole, thereby preventing pin misalignment.

[0036] 9. The automatic guided vehicle drive unit provided by the present invention further includes a limiting ring, which is fixedly mounted on the support member and coaxially sleeved on the bearing. The limiting ring prevents the bearing from moving and also prevents external impurities from entering the bearing and causing damage.

[0037] 10. The automated guided vehicle drive unit provided by the present invention further includes a bushing, which is disposed within a fixed sleeve. The outer surface of the bushing contacts the inner surface of the fixed sleeve, and the inner surface of the bushing contacts the outer surface of the rotating component. By providing a bushing within the fixed sleeve, smooth rotation of the rotating component is ensured. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0040] Figure 2 This is a schematic diagram of the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0041] Figure 3 This is a front view of the automated guided vehicle drive unit in Embodiment 1 of the present invention;

[0042] Figure 4 This is a side view of the automated guided vehicle drive unit in Embodiment 1 of the present invention;

[0043] Figure 5 This is a cross-sectional view of the automated guided vehicle drive unit in Embodiment 1 of the present invention, with the first and second drive wheels hidden.

[0044] Figure 6 This is a plan view of the hidden support and base frame of the automated guided vehicle drive unit in Embodiment 1 of the present invention;

[0045] Figure 7 This is a schematic diagram of the hidden base frame of the automated guided vehicle drive unit in Embodiment 1 of the present invention;

[0046] Figure 8 This is a partial structural diagram of the rotation detection structure in the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0047] Figure 9 This is an exploded view of the steering detection structure in the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0048] Figure 10 This is a partially enlarged schematic diagram of the rotation detection structure in the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0049] Figure 11 This is a schematic diagram of the rotating component in the drive unit of the automated guided vehicle in Embodiment 1 of the present invention;

[0050] Figure 12This is a schematic diagram of the elastic element in the drive unit of the automated guided vehicle in Embodiment 1 of the present invention.

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

[0052] 1. Fixing plate; 2. Supporting component; 3. Lifting component; 4. Potentiometer; 5. Base frame;

[0053] 601. Driving component; 602. Reduction transmission device; 603. Drive pulley; 604. Transmission belt; 605. First drive pulley; 606. Second drive pulley;

[0054] 7. Pins; 701. Clips; 8. Fixtures;

[0055] 9. Rotating component; 901. Mounting groove; 902. Through hole;

[0056] 10. Fixing sleeve; 11. Bushing; 12. Elastic element;

[0057] 13. Central shaft; 1301. Mating part; 1302. Offset part; 1303. Lifting hole;

[0058] 14. Bearing sleeve; 15. Limiting ring; 16. Bearing; 17. Lifting pad; 18. First synchronous pulley; 19. Second synchronous pulley; 20. Synchronous belt. Detailed Implementation

[0059] The technical solution of the present invention 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 the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0062] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0063] Example 1

[0064] This embodiment provides an automated guided vehicle drive unit, such as... Figures 1-5 As shown, it includes: a fixed plate 1, a base frame 5, and a rotation detection structure. A fixing sleeve 10 is fixedly installed on one side of the fixed plate 1. A drive wheel is rotatably mounted on the base frame 5. When the drive wheel rotates, it will cause the base frame 5 to rotate as well. For example: Figures 2-4 As shown, a first drive wheel 605 and a second drive wheel 606 are mounted on the base frame 5, respectively located on opposite sides of the base frame 5. A drive component 601 is mounted on the base frame 5 and connected to a reduction gear transmission device 602. A drive wheel 603 is mounted on the reduction gear transmission device 602, and a driven wheel is mounted on the base frame 5. The first drive wheel 605 is connected to the driven wheel, and the driven wheel and drive wheel 603 are connected via a transmission belt 604. Thus, the first drive wheel 605 is driven to rotate by the drive component 601. The second drive wheel 606 can also rotate independently via other drive structures. Differential control between the first drive wheel 605 and the second drive wheel 606 enables the drive unit to steer, meaning the base frame 5 follows the direction of the drive wheel. The base frame 5 is connected to a fixed sleeve 10 via a rotation detection structure. This rotation detection structure includes a rotation structure and a potentiometer 4. The rotation structure is coaxially mounted within the fixed sleeve 10. One end of the rotation structure is fixed to the base frame 5, and the other end is rotatably mounted within the fixed sleeve 10. Potentiometer 4 is connected to the rotating structure.

[0065] This automated guided vehicle (AGV) drive unit has a fixed plate 1 adapted to be fixed on the AGV. A base frame 5 is connected to the fixed plate 1 via a rotation detection structure. When the drive wheels on the base frame 5 move, the base frame 5 moves, further driving the fixed plate 1 to move the AGV. The rotation detection structure includes a rotation mechanism and a potentiometer 4. One end of the rotation mechanism is fixed to the base frame 5, and the other end is rotatably mounted inside the fixed sleeve 10. When the drive wheels steer via differential speed, the base frame 5 rotates synchronously with the drive wheels, meaning the rotation angle of the base frame 5 is the same as the steering angle of the drive wheels. The base frame 5 further drives the rotation mechanism to rotate synchronously. The rotation mechanism is connected to the potentiometer 4, transmitting rotation data to the potentiometer 4, which then detects the steering angle of the AGV drive unit. This design ensures that the AGV is small enough to handle materials in confined spaces while also providing steering detection functionality for accurate control of the AGV's drive angle.

[0066] Specifically, such as Figure 5 , Figure 8 and Figure 9 As shown, the rotating structure includes a rotating component 9 and a central shaft 13. The rotating component 9 is coaxially disposed within the fixed sleeve 10, and the fixed end of the rotating component 9 is fixedly disposed on the base frame 5. Figure 11 As shown, a mounting groove 901 is provided at the fixed end of the rotating component 9. The central shaft 13 is coaxially disposed within the rotating component 9. Figure 12 As shown, a mating part 1301 is provided at one end of the central shaft 13, and an offset part 1302 is provided at the other end. The mating part 1301 is engaged in the mounting groove 901, so that the rotating part 9 rotates synchronously with the central shaft 13. For example, as Figure 11 and Figure 12 As shown, the offset portion 1302 of the central shaft 13 can pass through the mounting groove 901 of the rotating member 9, so that the central shaft 13 and the rotating member 9 are coaxially arranged. At the same time, the mating portion 1301 is fixed inside the mounting groove 901, so that the central shaft 13 and the rotating member 9 rotate synchronously.

[0067] like Figure 9 As shown, the offset part 1302 coaxial sleeve 11 is provided with a bearing sleeve 14, and a first synchronous pulley 18 is synchronously rotated on the bearing sleeve 14, as shown. Figure 6 As shown, a second synchronous pulley 19 is rotatably mounted on the fixed plate 1, and the first synchronous pulley 18 and the second synchronous pulley 19 are connected via a synchronous belt 20. A potentiometer 4 is coaxially connected to the second synchronous pulley 19.

[0068] When the drive wheel turns, it drives the base frame 5 to rotate synchronously. Since the fixed end of the rotating component 9 is fixedly mounted on the base frame 5, the rotation of the base frame 5 further drives the rotating component 9 to rotate within the fixed sleeve 10. Because the mating part 1301 of the central shaft 13 is engaged in the mounting groove 901, the rotating component 9 further drives the central shaft 13 to rotate synchronously during its rotation. One end of the central shaft 13 is provided with an offset part 1302, on which a bearing sleeve 14 is fitted. A first synchronous pulley 18 is synchronously mounted on the bearing sleeve 14. When the central shaft 13 rotates, it drives the bearing sleeve 14 and the first synchronous pulley 18 to rotate synchronously. The first synchronous pulley 18 drives the second synchronous pulley 19 to rotate via the synchronous belt 20. The second synchronous pulley 19 drives the potentiometer 4, which detects the steering angle of the automated guided vehicle drive unit. This ensures that the rotation detection structure occupies a small volume while facilitating the detection and precise control of the automated guided vehicle's drive angle.

[0069] Specifically, such as Figure 5 , Figure 9 and Figure 10 As shown, the structure also includes a support member 2, which is fixedly mounted on one side of the fixed plate 1. The support member 2 and the fixed sleeve 10 are respectively mounted on both sides of the fixed part. A lifting pad 17 is fixedly mounted on the support member 2. A through hole is formed on the lifting pad 17, which is coaxially arranged with the rotating member 9 and is suitable for the lifting member 3 to pass through. The rotating structure also includes an elastic member 12, which is disposed inside the rotating member 9. The elastic member 12 is sleeved on the central shaft 13. One end of the elastic member 12 abuts against the rotating member 9, and the other end of the elastic member 12 abuts against the first synchronous wheel 18. The elastic member 12 applies an elastic force to the rotating member 9 in a direction away from the fixed plate 1. A lifting hole 1303 is formed coaxially with the through hole at one end of the central shaft 13, and the lifting member 3 is detachably connected to the lifting hole 1303. The detachable connection between the lifting member 3 and the lifting hole 1303 can be achieved by a snap-fit ​​connection or a threaded connection, etc. A lifting hole 1303 is provided on the central shaft 13, and the lifting component 3 can be inserted into the lifting hole 1303 through the through hole of the lifting pad 17.

[0070] When the lifting component 3 is connected to the lifting hole 1303, the central shaft 13 can be pulled towards the fixed plate 1 by controlling the lifting component 3. That is, the base frame 5 and the drive wheel move towards the fixed plate 1, causing the drive wheel to lift off the ground, thus lifting the drive wheel. At this time, the automated guided vehicle can be supported by auxiliary wheels, which can push the automated guided vehicle away from the work area for offline maintenance. The central shaft 13 can simultaneously detect the steering angle of the automated guided vehicle drive unit and perform lifting functions. An elastic element 12 is fitted on the central shaft 13. When the lifting component 3 separates from the lifting hole 1303, the elastic element 12 can apply an elastic force away from the fixed plate 1 to the rotating component 9, causing the base frame 5 and the drive wheel to return to their original positions. At the same time, the elastic element 12 on the central shaft 13 can buffer and dampen the automated guided vehicle by floating up and down, ensuring that the automated guided vehicle can be used normally on uneven working surfaces.

[0071] Specifically, such as Figure 5 , Figure 9 and Figure 10 As shown, it also includes a bearing 16. A coaxial sleeve 11 is mounted on the bearing sleeve 14. The bearing 16 is positioned between the lifting pad 17 and the bearing sleeve 14, with one side of the bearing 16 abutting against the lifting pad 17 and the other side abutting against the bearing sleeve 14. By mounting the bearing sleeve 14 on the bearing sleeve 14, dry friction between the central shaft 13, rotating component 9, first synchronous pulley 18, or bearing sleeve 14 and the support component 2 is prevented, thus avoiding wear of the central shaft 13, rotating component 9, first synchronous pulley 18, or bearing sleeve 14 due to friction. The bearing 16 can be a thrust ball bearing 16.

[0072] Specifically, such as Figure 5 As shown, the lifting hole 1303 is a threaded hole, and the part where the lifting member 3 mates with the lifting hole 1303 is a threaded rod. When the lifting member 3 is inserted into the lifting hole 1303, the lifting member 3 is supported by the lifting pad 17. By rotating the lifting member 3, the central shaft 13 is moved away from or closer to the fixed plate 1, so as to adjust the lifting and lowering of the drive wheel.

[0073] Specifically, such as Figure 12 As shown, the offset portion 1302 has at least one plane. That is, the offset portion 1302 can have one plane, multiple planes, or be serrated. The bearing sleeve 14 is fitted onto the offset portion 1302 of the central shaft 13. The plane ensures that the bearing sleeve 14 rotates synchronously with the central shaft 13, further ensuring that the rotation angle of the first synchronous wheel 18 is the same as the rotation angle of the central shaft 13, and further ensuring that the potentiometer 4 measures the rotation angle accurately.

[0074] Specifically, such as Figures 5-8As shown, the rotating structure also includes a pin 7. A through hole 902 is formed at the fixed end of the rotating part 9 corresponding to the pin 7. The axis of the through hole 902 is perpendicular to the axis of the rotating part 9. The pin 7 is fixedly mounted on the base frame 5. By passing the pin 7 through the through hole 902, the rotating part 9 is fixed to the base frame 5, ensuring that the rotating part 9 rotates synchronously with the base frame 5, and further ensuring that the potentiometer 4 accurately measures the rotation angle of the automatic guided transport vehicle drive unit.

[0075] Specifically, such as Figures 5-8 As shown, at least one fixing member 8 is fixedly installed on the base frame 5, and one or more fixing members 8 can be provided. A mounting hole is provided on the fixing member 8, coaxially arranged with a through hole 902, through which a pin 7 can pass. Furthermore, a retaining piece 701 is provided on the pin 7, and the retaining piece 701 is fixedly installed on the fixing member 8. By having the pin 7 pass through the mounting hole of the fixing member 8 and the through hole 902 of the rotating member 9, the rotating member 9 is securely fixed to the base frame 5, allowing the rotating member 9 to rotate synchronously with the base frame 5. Simultaneously, the retaining piece 701 on the pin 7 prevents the pin 7 from moving axially along the through hole 902, thereby preventing the pin 7 from shifting. For example: Figure 7 As shown, two fixing members 8 are provided. The two fixing members 8 are respectively located on both sides of the through hole 902 of the rotating member 9. A pin 7 passes through the two fixing members 8 and the rotating member 9 to ensure that the rotating member 9 is firmly fixed to the base frame 5, allowing the rotating member 9 and the base frame 5 to rotate synchronously. Figure 7 As shown, a slot can be provided at one end of the pin 7, and the clip 701 is adapted to be clipped in the slot. The clip 701 can be locked onto the fixing member 8 by means of bolts, etc., to prevent the pin 7 from moving axially along the through hole 902, thereby preventing the pin 7 from shifting.

[0076] Specifically, such as Figure 5 , Figure 8 and Figure 9 As shown, it also includes a limiting ring 15, which is fixedly mounted on the support member 2. The limiting ring 15 is coaxially sleeved 11 on the bearing 16. The limiting ring 15 is used to prevent the bearing 16 from moving and to prevent external impurities from entering the bearing 16 and causing damage to the bearing 16.

[0077] Specifically, such as Figure 5 As shown, it also includes a bushing 11, which is disposed within the fixed sleeve 10. The outer surface of the bushing 11 contacts the inner surface of the fixed sleeve 10, and the inner surface of the bushing 11 contacts the outer surface of the rotating component 9. By providing the bushing 11 within the fixed sleeve 10, smooth rotation of the rotating component 9 is ensured. The bushing 11 can be a copper bushing. A stepped groove is provided within the fixed sleeve 10, and a copper bushing pressure plate is fixedly disposed at the stepped groove. The copper bushing is fixed by the copper bushing pressure plate to prevent it from shifting within the fixed sleeve 10.

[0078] The working principle of the automated guided vehicle drive unit is:

[0079] The fixing plate 1 is fixed on the automated guided vehicle. The base frame 5 is connected to the fixing plate 1 through the rotation detection structure. When the drive wheel on the base frame 5 moves, it drives the base frame 5 to move, which in turn drives the fixing plate 1 to move the automated guided vehicle.

[0080] The rotating component 9 is coaxially mounted within the fixed sleeve 10, and its fixed end is fixedly mounted on the base frame 5. A mounting groove 901 is provided at the fixed end of the rotating component 9. A central shaft 13 is coaxially mounted within the rotating component 9. One end of the central shaft 13 has a mating part 1301, and the other end has an offset part 1302. The mating part 1301 engages within the mounting groove 901, allowing the rotating component 9 to rotate synchronously with the central shaft 13. A bearing sleeve 14 is provided coaxially with the offset part 1302 and the sleeve 11. A first synchronous wheel 18 is synchronously mounted on the bearing sleeve 14, and a second synchronous wheel 19 is rotatably mounted on the fixed plate 1. The first synchronous wheel 18 and the second synchronous wheel 19 are connected via a synchronous belt 20. A potentiometer 4 is coaxially connected to the second synchronous wheel 19. When the drive wheel turns, it drives the base frame 5 to rotate synchronously. Since the fixed end of the rotating component 9 is fixedly mounted on the base frame 5, the rotation of the base frame 5 further drives the rotating component 9 to rotate within the fixed sleeve 10. Because the mating part 1301 of the central shaft 13 is engaged in the mounting groove 901, the rotating part 9 further drives the central shaft 13 to rotate synchronously during rotation. One end of the central shaft 13 is provided with an offset part 1302, on which a bearing sleeve 14 is fitted. A first synchronous pulley 18 is synchronously mounted on the bearing sleeve 14. When the central shaft 13 rotates, it drives the bearing sleeve 14 and the first synchronous pulley 18 to rotate synchronously. The first synchronous pulley 18 drives a second synchronous pulley 19 to rotate via a synchronous belt 20. The second synchronous pulley 19 drives a potentiometer 4, which detects the steering angle of the automated guided vehicle drive unit. This design ensures that the rotation detection structure occupies a small volume while facilitating the detection and precise control of the automated guided vehicle's drive angle.

[0081] When the drive unit malfunctions, the lifting component 3 is connected to the lifting hole 1303. The operator can control the lifting component 3 to pull the central shaft 13 towards the fixed plate 1, that is, the base frame 5 and the drive wheel move towards the fixed plate 1, lifting the drive wheel off the ground. At this time, auxiliary wheels can be used to support the automated guided vehicle (AGV) and push it away from the work area for offline maintenance. The central shaft 13 allows for simultaneous detection of the AGV drive unit's steering angle and lifting function. An elastic element 12 is fitted onto the central shaft 13. When the lifting component 3 separates from the lifting hole 1303, the elastic element 12 applies an elastic force to the rotating component 9 away from the fixed plate 1, causing the base frame 5 and drive wheel to reset. Simultaneously, the elastic element 12 on the central shaft 13 provides cushioning and shock absorption for the AGV through its up-and-down movement.

[0082] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An automated guided vehicle drive unit, characterized in that, include: A fixing plate (1) is fixedly provided with a fixing sleeve (10) on one side; The base frame (5) has a drive wheel that rotates on top; The rotation detection structure includes a rotation structure and a potentiometer (4); A rotating structure is coaxially disposed within the fixed sleeve (10); one end of the rotating structure is fixedly disposed on the base frame (5), and the other end is rotatably disposed within the fixed sleeve (10); Potentiometer (4) is connected to the rotating structure; The rotating structure includes a rotating component (9) and a central shaft (13); The fixed end of the rotating component (9) is fixedly mounted on the base frame (5); the fixed end is provided with a mounting groove (901); The central shaft (13) is coaxially arranged inside the rotating part (9); one end of the central shaft (13) is provided with a mating part (1301), and the other end is provided with an offset part (1302); the mating part (1301) is engaged in the mounting groove (901); a bearing sleeve (14) is coaxially sleeved on the offset part (1302), and a first synchronous wheel (18) is synchronously rotated on the bearing sleeve (14); a second synchronous wheel (19) is rotatably arranged on the fixed plate (1), and the first synchronous wheel (18) and the second synchronous wheel (19) are connected by a synchronous belt (20); the second synchronous wheel (19) is coaxially connected to the potentiometer (4); It also includes a support member (2); the support member (2) is fixedly mounted on the fixing plate (1); the support member (2) and the fixing sleeve (10) are located on both sides of the fixing plate (1); A lifting pad (17) is fixedly provided on the support member (2). A through hole coaxial with the rotating member (9) is provided on the lifting pad (17). The through hole is suitable for the lifting member (3) to pass through. The rotating structure also includes an elastic element (12), which is disposed inside the rotating element (9) and sleeved on the central shaft (13); one end of the elastic element (12) abuts against the rotating element (9) and the other end abuts against the first synchronous wheel (18); the elastic element (12) applies an elastic force to the rotating element (9) in a direction away from the fixed plate (1); One end of the central shaft (13) is coaxially formed with a lifting hole (1303) corresponding to the through hole, and the lifting member (3) is detachably connected to the lifting hole (1303).

2. The automated guided transport vehicle drive unit of claim 1, wherein, It also includes a bearing (16); the bearing (16) is coaxially sleeved on the bearing sleeve (14); one side of the bearing (16) abuts against the lifting pad (17), and the other side abuts against the bearing sleeve (14).

3. The automated guided transport vehicle drive unit of claim 2, wherein, The lifting hole (1303) is a threaded hole.

4. The automated guided transport vehicle drive unit of any of claims 1-3, wherein, The offset portion (1302) has at least one plane.

5. The automated guided transport vehicle drive unit of any of claims 1-3, wherein, The rotating structure also includes a pin (7); the fixed end of the rotating part (9) has a through hole (902) corresponding to the pin (7), and the axis of the through hole (902) is perpendicular to the axis of the rotating part (9); the pin (7) is fixedly mounted on the base frame (5).

6. The automated guided transport vehicle drive unit of claim 5, wherein, The base frame (5) is fixedly provided with at least one fixing member (8); the fixing member (8) is provided with a mounting hole through which the pin shaft (7) passes, and the mounting hole is coaxially arranged with the through hole (902); The pin shaft (7) is provided with a clamping member (701), and the clamping member (701) is fixedly arranged on the fixing member (8).

7. The automated guided transport vehicle drive unit of claim 2, wherein, Further comprising a limiting ring (15), which is fixedly arranged on the supporting member (2), and the limiting ring (15) is coaxially sleeved on the bearing (16).

8. The automated guided transport vehicle drive unit of any of claims 1-3, wherein, Further comprising a shaft sleeve (11); the shaft sleeve (11) is fixedly arranged in the fixing sleeve (10), the outer surface of the shaft sleeve (11) is in contact with the inner surface of the fixing sleeve (10), and the inner surface of the shaft sleeve (11) is in contact with the outer surface of the rotating member (9).

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