AGV walking wheel set structure suitable for complex ground
By designing an AGV walking wheel set structure suitable for complex terrain, the problem of swaying and vibration when the AGV is traveling on uneven ground is solved, achieving the effects of stability and product protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-09
AI Technical Summary
When existing AGVs travel on complex terrain, the drive wheels are prone to becoming suspended in the air, causing the vehicle to shake, the wheels to slip, and the vibrations to be unable to be effectively cushioned, which may damage the transported products.
An AGV walking wheel assembly structure was designed, which includes a mounting base, walking components, shock-absorbing components, and adjustment components. It can adjust the contact area in real time according to the ground conditions, buffer vibrations through the shock-absorbing components, and adjust the vehicle height through the adjustment components to ensure stability and friction.
It enables stable driving on complex terrain, avoids vehicle body swaying and wheel slippage, reduces vibration damage to products, and improves ground adaptability and uniformity of item placement.
Smart Images
Figure CN224335419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of AGV wheel sets, and in particular to an AGV walking wheel set structure suitable for complex terrain. Background Technology
[0002] AGV: Also known as AGV cart, it refers to a transport vehicle equipped with electromagnetic or optical automatic guidance devices, capable of traveling along a prescribed guidance path, with safety protection and various transfer functions. In industrial applications, it is a driverless transport vehicle powered by a rechargeable battery. For example, the inertial navigation heavy-duty AGV system proposed in prior art publication number CN209181798U includes a vehicle body and drive wheels installed in the vehicle body. The drive wheels include a front-wheel drive group and a rear-wheel drive group, a total of four drive wheels mounted on the vehicle body to drive the cart. However, the cost of the wheel structure is high, which is not conducive to the overall cost control of the cart. During production and transportation, when encountering uneven road surfaces, the drive wheels may become suspended in the air. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides an AGV walking wheel set structure suitable for complex terrain, which can be adjusted in real time according to the ground conditions, ensure the contact area with the ground, buffer and absorb vibrations during movement, and avoid damage to the transported products.
[0004] This utility model discloses an AGV walking wheel assembly structure suitable for complex terrain, including a mounting base, a walking component, a mounting component, a rotating component, a shock-absorbing component, and an adjusting component. The walking component is installed at the bottom of the mounting base, and the top of the mounting base is connected to the shock-absorbing component through the rotating component. The mounting component is located above the shock-absorbing component, and the adjusting component is installed inside the shock-absorbing component. The walking component drives the device to move and can be adjusted in real time according to the ground conditions to ensure the contact area with the ground. The shock-absorbing component can buffer and absorb the vibration during the movement to avoid damage to the transported products. At the same time, the adjusting component can adjust the height of the vehicle body to avoid the problems of vehicle body swaying and wheel slippage during the movement of the AGV. This reduces the requirements for ground flatness and uniformity of item placement, and is suitable for complex terrain.
[0005] Preferably, the walking component includes a connecting block, a movable seat, a walking arm, two walking wheels, two support blocks, two sets of adjusting rods, and two sets of adjusting springs. The connecting block is installed at the bottom of the mounting seat, and the movable seat is rotatably connected to the connecting block. The walking arm is fixedly installed at the bottom of the movable seat, and two walking wheels are rotatably installed on the walking arm. Support blocks are symmetrically installed on the left and right sides of the bottom of the mounting seat. The upper and lower ends of the adjusting rods are rotatably connected to the walking arm and the support blocks, respectively, and adjusting springs are installed on the outer wall of the adjusting rods. The AGV is moved by the two walking wheels. When there is a protrusion on the ground, the walking wheel in the forward direction contacts the protrusion and pushes the walking arm to rotate on the connecting block, causing the walking arm to push and compress the adjusting rods and adjusting springs, while simultaneously stretching the adjusting rods and adjusting springs on the other side, so that the walking wheels are in close contact with the ground. When the AGV is running on uneven ground or the items on the vehicle are unevenly placed, at least one caster will be subjected to the impact force of the ground, ensuring friction and preventing the AGV from shaking or the wheels from slipping during the operation.
[0006] Preferably, the rotating component includes a rotating base, a turntable, and a supporting ring. The top of the mounting base has a rotating cavity, and the rotating base is located inside the rotating cavity. The turntable is rotatably mounted inside the rotating cavity, and the bottom of the turntable is connected to the rotating base. A guide groove is provided on the inner wall of the rotating cavity. The supporting ring is mounted on the outer wall of the turntable and is rotatably mounted inside the guide groove. The rotating base enables the turntable to rotate inside the rotating cavity, which facilitates the adjustment of the forward direction of the traveling wheels and the movement direction of the AGV. When the turntable rotates, it drives the supporting ring to rotate in the guide groove, providing support and guidance, increasing structural strength, and ensuring stability.
[0007] Preferably, the shock-absorbing component includes a shock-absorbing cylinder, a shock-absorbing column, and a buffer spring. The shock-absorbing cylinder is installed on the top of the turntable, the shock-absorbing column is slidably installed inside the shock-absorbing cylinder, and buffer nitrogen is installed inside the shock-absorbing cylinder. The top of the buffer spring is connected to the bottom of the shock-absorbing column. When the ground is uneven, the vibration and impact during walking will push the shock-absorbing cylinder to squeeze the buffer nitrogen and the buffer spring, which can buffer and absorb the vibration during movement and avoid damage to the transported products.
[0008] Preferably, the mounting components include a connecting seat, a rubber ring, and multiple fixing bolts. The connecting seat is located above the shock-absorbing column, and a rubber ring is installed on the top of the connecting seat. Multiple fixing bolts are axially distributed on the connecting seat. The connecting seat is placed at the bottom mounting position of the AGV trolley, and the fixing bolts are tightened to connect the connecting seat to the AGV trolley. The rubber ring can prevent a rigid connection between the connecting seat and the AGV trolley, which would cause wear to the AGV trolley and generate mechanical noise.
[0009] Preferably, the adjustment component includes an adjustment column, an electric telescopic rod, and multiple limiting sliders. The shock-absorbing column has an adjustment cavity inside, the electric telescopic rod is installed inside the adjustment cavity, and the adjustment column is slidably installed inside the adjustment cavity. The top of the adjustment column is connected to the bottom of the connecting seat, and the bottom of the adjustment column has an installation groove matching the electric telescopic rod. The telescopic end of the electric telescopic rod is connected to the top of the installation groove. A limiting groove is provided on the inner wall of the adjustment cavity, and multiple limiting sliders are installed on the lower outer wall of the adjustment column, slidingly installed within the limiting groove. Activating the electric telescopic rod pushes the adjustment column to move within the adjustment cavity, adjusting the height of the AGV trolley, improving passability, and reducing the requirements for ground flatness and uniform item placement, making it suitable for complex terrain.
[0010] Preferably, it also includes a rubber sleeve and a reinforcing block. The reinforcing block is installed at the middle of the bottom end of the travel arm, and the rubber sleeve is installed on the outer wall of the travel wheel. The reinforcing block increases the structural strength of the travel arm, and the rubber sleeve can increase the friction between the travel wheel and the ground to prevent it from spinning freely.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the walking component drives the device to move, and can be adjusted in real time according to the ground conditions to ensure the contact area with the ground. The shock-absorbing component can buffer and absorb the vibration during the movement to avoid damage to the transported products. At the same time, the adjusting component can adjust the height of the vehicle body to avoid the problems of vehicle body swaying and wheel slippage during the AGV vehicle's movement. This reduces the requirements for ground flatness and uniformity of item placement, and is suitable for complex ground. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0014] Figure 3 This is a front view structural diagram of the present invention;
[0015] Figure 4 This is a schematic diagram of the lower three-dimensional structure of this utility model;
[0016] Figure 5 This is a cross-sectional structural diagram of the present invention;
[0017] The following are labels in the attached diagram: 1. Mounting base; 2. Rotating base; 3. Turntable; 4. Shock absorber; 5. Shock absorber column; 6. Buffer spring; 7. Adjusting column; 8. Connecting base; 9. Rubber ring; 10. Fixing bolt; 11. Electric telescopic rod; 12. Limiting slider; 13. Connecting block; 14. Movable base; 15. Traveling arm; 16. Traveling wheel; 17. Rubber sleeve; 18. Reinforcing block; 19. Support block; 20. Adjusting rod; 21. Adjusting spring; 22. Support swivel. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0019] like Figures 1 to 5 As shown, the connecting block 13 is installed at the bottom of the mounting base 1, the movable base 14 is rotatably connected to the connecting block 13, the bottom of the movable base 14 is fixedly installed with a walking support arm 15, two walking wheels 16 are rotatably installed on the walking support arm 15, the bottom of the mounting base 1 is symmetrically installed with support blocks 19, the upper and lower ends of the adjusting rod 20 are rotatably connected to the walking support arm 15 and the support block 19 respectively, the outer wall of the adjusting rod 20 is installed with an adjusting spring 21, the top of the mounting base 1 has a rotating cavity, the rotating base 2 is located in the rotating cavity, the turntable 3 is rotatably installed in the rotating cavity, the bottom of the turntable 3 is connected to the rotating base 2, the inner wall of the rotating cavity has a guide groove, the support ring 22 is installed on the outer wall of the turntable 3 and is rotatably installed in the guide groove, the shock absorber 4 is installed at the top of the turntable 3, the shock absorber column 5 is slidably installed inside the shock absorber 4, and the shock absorber 4 is provided with The shock absorber has a buffer nitrogen gas. The buffer spring 6 is installed inside the shock absorber cylinder 4. The top of the buffer spring 6 is connected to the bottom of the shock absorber column 5. The connecting seat 8 is located above the shock absorber column 5. The top of the connecting seat 8 is equipped with a rubber ring 9. Multiple fixing bolts 10 are axially distributed on the connecting seat 8. The shock absorber column 5 has an adjustment cavity. The electric telescopic rod 11 is installed in the adjustment cavity. The adjustment column 7 is slidably installed in the adjustment cavity. The top of the adjustment column 7 is connected to the bottom of the connecting seat 8. The bottom of the adjustment column 7 has an installation groove that matches the electric telescopic rod 11. The telescopic end of the electric telescopic rod 11 is connected to the top of the installation groove. The inner wall of the adjustment cavity has a limit slide groove. Multiple limit sliders 12 are installed on the lower outer wall of the adjustment column 7. The limit sliders 12 are slidably installed in the limit slide groove. The reinforcing block 18 is installed in the middle of the bottom of the walking arm 15. The outer wall of the walking wheel 16 is equipped with a rubber sleeve 17.
[0020] Place the connecting seat 8 at the bottom of the AGV trolley and tighten the fixing bolts 10 to connect the connecting seat 8 to the AGV trolley. The rubber ring 9 prevents a rigid connection between the connecting seat 8 and the AGV trolley, which could cause wear and mechanical noise. The rotating seat 2 allows the turntable 3 to rotate within the rotating cavity, facilitating the adjustment of the forward direction of the traveling wheels 16 and the movement direction of the AGV trolley. When the turntable 3 rotates, it drives the support ring 22 to rotate within the guide groove, providing support and guidance, increasing structural strength, and ensuring stability. The reinforcing block 18 increases the structural strength of the traveling arm 15, and the rubber sleeve 17 increases the friction between the traveling wheels 16 and the ground, preventing idle rotation. The two traveling wheels 16 drive the AGV trolley to move. When there is a protrusion on the ground, the traveling wheel 16 in the forward direction contacts the protrusion and pushes the traveling arm. 15 rotates on connecting block 13, causing the walking arm 15 to push and compress adjusting rod 20 and adjusting spring 21, while simultaneously stretching the other adjusting rod 20 and adjusting spring 21, so that the walking wheel 16 is in close contact with the ground. When the AGV is running on uneven ground or the items on the vehicle are unevenly placed, at least one caster will be subjected to the impact force of the ground. This ensures friction and prevents the AGV from shaking or the wheels from slipping during travel. When the ground is uneven, the vibration and impact during travel are reduced. The shock absorber 4 is pushed to compress the buffer nitrogen and the buffer spring 6, which can buffer and absorb the vibration during movement and prevent damage to the transported products. Activating the electric telescopic rod 11 can push the adjusting column 7 to move in the adjusting cavity, adjust the height of the AGV, and improve the passability. This reduces the requirements for ground flatness and uniformity of item placement, making it suitable for complex ground.
[0021] like Figures 1 to 5As shown, this utility model discloses an AGV walking wheel assembly structure suitable for complex terrain. During operation, the connecting seat 8 is placed at the bottom mounting position of the AGV trolley, and the fixing bolts 10 are tightened to connect the connecting seat 8 to the AGV trolley. The rubber ring 9 prevents a rigid connection between the connecting seat 8 and the AGV trolley. The reinforcing block 18 increases the structural strength of the walking arm 15, and the rubber sleeve 17 increases the friction between the walking wheel 16 and the ground. The rotating seat 2 allows the turntable 3 to rotate within the rotating cavity, facilitating the adjustment of the forward direction of the walking wheel 16 and the movement direction of the AGV trolley. When the turntable 3 rotates, it drives the supporting rotating ring 22 to rotate within the guide groove, providing support and guidance. Each caster wheel 16 drives the AGV to move. When there is a bump on the ground, the caster wheel 16 in the forward direction contacts the bump and pushes the travel arm 15 to rotate on the connecting block 13. This causes the travel arm 15 to push and compress the adjusting rod 20 and the adjusting spring 21, while simultaneously stretching the adjusting rod 20 and the adjusting spring 21 on the other side, so that the caster wheel 16 is in close contact with the ground. When the AGV is running on uneven ground or when the goods on the vehicle are unevenly placed, at least one caster wheel will be subjected to the impact force of the ground. When the ground is uneven, the vibration and impact during the movement will push the shock absorber 4 to compress the buffer nitrogen and the buffer spring 6, which can buffer and absorb the vibration during the movement and avoid damage to the transported products.
[0022] The rotating base 2 of the AGV walking wheel set structure suitable for complex terrain is commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An AGV walking wheel set structure suitable for complex terrain, characterized in that, It includes a mounting base (1), a walking component, a mounting component, a rotating component, a shock-absorbing component, and an adjusting component. The bottom of the mounting base (1) is equipped with a walking component, and the top of the mounting base (1) is connected to the shock-absorbing component through the rotating component. The mounting component is located above the shock-absorbing component, and the adjusting component is installed inside the shock-absorbing component. The walking component includes a connecting block (13), a movable seat (14), a walking arm (15), two walking wheels (16), two support blocks (19), two sets of adjusting rods (20), and two sets of adjusting springs (21). The connecting block (13) is installed at the bottom of the mounting base (1). The movable seat (14) is rotatably connected to the connecting block (13). The walking arm (15) is fixedly installed at the bottom of the movable seat (14). Two walking wheels (16) are rotatably installed on the walking arm (15). Support blocks (19) are symmetrically installed on the bottom of the mounting base (1). The upper and lower ends of the adjusting rod (20) are rotatably connected to the walking arm (15) and the support block (19) respectively. Adjusting springs (21) are installed on the outer wall of the adjusting rod (20). The rotating component includes a rotating seat (2), a turntable (3), and a supporting rotating ring (22). The top of the mounting seat (1) is provided with a rotating cavity, the rotating seat (2) is located in the rotating cavity, the turntable (3) is rotatably installed in the rotating cavity, the bottom of the turntable (3) is connected to the rotating seat (2), a guide groove is provided on the inner wall of the rotating cavity, and the supporting rotating ring (22) is installed on the outer wall of the turntable (3) and is rotatably installed in the guide groove. The shock-absorbing components include a shock-absorbing cylinder (4), a shock-absorbing column (5), and a buffer spring (6). The shock-absorbing cylinder (4) is installed on the top of the turntable (3), the shock-absorbing column (5) is slidably installed inside the shock-absorbing cylinder (4), and buffer nitrogen is provided inside the shock-absorbing cylinder (4). The buffer spring (6) is installed inside the shock-absorbing cylinder (4), and the top of the buffer spring (6) is connected to the bottom of the shock-absorbing column (5).
2. The AGV walking wheel set structure suitable for complex terrain as described in claim 1, characterized in that, The mounting components include a connecting seat (8), a rubber ring (9), and multiple fixing bolts (10). The connecting seat (8) is located above the shock absorber column (5). The rubber ring (9) is installed on the top of the connecting seat (8), and multiple fixing bolts (10) are axially distributed on the connecting seat (8).
3. The AGV walking wheel set structure suitable for complex terrain as described in claim 1, characterized in that, The adjustment components include an adjustment column (7), an electric telescopic rod (11), and multiple limiting sliders (12). The shock-absorbing column (5) has an adjustment cavity inside. The electric telescopic rod (11) is installed in the adjustment cavity. The adjustment column (7) is slidably installed in the adjustment cavity. The top of the adjustment column (7) is connected to the bottom of the connecting seat (8). The bottom of the adjustment column (7) has an installation groove that matches the electric telescopic rod (11). The telescopic end of the electric telescopic rod (11) is connected to the top of the installation groove. A limiting groove is opened on the inner wall of the adjustment cavity. Multiple limiting sliders (12) are installed on the lower outer wall of the adjustment column (7). The limiting sliders (12) are slidably installed in the limiting groove.
4. The AGV walking wheel set structure suitable for complex terrain as described in claim 1, characterized in that, It also includes a rubber sleeve (17) and a reinforcing block (18). The reinforcing block (18) is installed at the middle of the bottom of the walking arm (15), and the rubber sleeve (17) is installed on the outer wall of the walking wheel (16).