AGV chassis and AGV trolley
By designing complex cushioning components on the AGV chassis, combining springs and elastic materials, the problem of AGV chassis rolling over when crossing obstacles or climbing hills is solved, the balance and walking accuracy of the whole vehicle are improved, and the practicality of the AGV chassis is enhanced. sex.
Patent Information
- Application Number
- CN202421222802.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing AGV chassis is prone to overturn when crossing obstacles or climbing hills. This is mainly due to the poor buffer structure design, which leads to poor balance of the vehicle and reduced walking accuracy. It is difficult to adjust the traditional spring buffer, making it difficult to achieve the ideal buffering effect.
Design an AGV chassis, adopting a structure of multiple sets of driven wheels and driving wheels, and forms a complex buffer system through buffer components, including connecting seats, connecting blocks, connecting sleeves, guide blocks, compression springs and elastic buffer balls. The combination of spring and elastic material achieves effective buffering of the driven wheel vibration and prevents the whole vehicle from rolling over.
It effectively prevents the front wheel from rolling upwards when crossing obstacles or climbing hills, improves the balance and walking accuracy of the entire vehicle, and enhances the practicality of the AGV chassis.
Smart Images
Figure CN222291871U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of AGV trolleys, in particular to an AGV chassis and an AGV trolley. Background Art
[0002] AGV (Automated Guided Vehicle) refers to a vehicle equipped with an electromagnetic or optical automatic guidance device and can travel along a specified guidance path. In the production process, the current AGV vehicles are shipped complete, and all the components contained in the AGV vehicle are assembled to form a complete vehicle. The AGV vehicle includes an actuator installed on the AGV chassis. The actuator is the main functional device of the AGV vehicle, and it reaches the designated position under the drive of the AGV chassis to perform its function.
[0003] The structure of the AGV chassis varies greatly depending on the application scenario, especially the AGV chassis that needs to meet certain obstacle crossing and climbing scenarios. When the front wheel of the AGV is going uphill during the obstacle crossing process or when climbing, the balance of the whole vehicle is broken and it is very easy to roll over. In order to solve the rollover caused by the unstable chassis in harsh environments, it is necessary to design a buffer or suspension structure on the AGV chassis. At present, most AGV chassis with buffer structures add a buffer structure to the driving wheel. This structure will reduce the walking accuracy of the whole machine. When the weight of the whole machine is large, it will lean to one side and have poor balance. Some AGVs use traditional spring buffers for buffering. The buffering force of the spring buffer structure is difficult to adjust and it is difficult to achieve the ideal state. There are also some AGV buffer structures that use wheels and buffer springs directly connected. Under the limited spring length, it is difficult to achieve the expected buffer distance. Therefore, it is particularly important to improve the existing AGV chassis, design a new AGV chassis and AGV trolley to solve the above technical defects and improve the practicality of the overall AGV chassis. Utility Model Content
[0004] The purpose of the utility model is to provide an AGV chassis and an AGV trolley. Through the overall design, it is possible to prevent the chassis body from being unbalanced and easily overturned during the obstacle-crossing process or when the front wheels go uphill when climbing a slope, thereby improving the overall practicality of the AGV chassis and solving the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An AGV chassis comprises a chassis body, wherein a plurality of driven wheels are slidably connected to the bottom of the chassis body, two sets of driven wheels are connected via a connecting plate, a buffer assembly is provided at one end of the connecting plate away from the driven wheels, and two sets of driving wheels are rotatably connected to the bottom of the chassis body and located between the plurality of driven wheels;
[0007] The buffer assembly is used to buffer the vibration received by the driven wheel.
[0008] As a preferred solution of the utility model, the buffer assembly is composed of a connecting seat, a connecting block, a connecting sleeve, a connecting rod, a guide block, a first compression spring and a second compression spring. The connecting seat is located at the end of the connecting plate away from the driven wheel, the connecting block is located at the end of the connecting seat away from the connecting plate, the two groups of connecting sleeves are rotatably connected to the outside of the connecting block, the connecting rod is slidably connected to the end of the connecting sleeve away from the connecting block, the guide block is rotatably connected to the end of the connecting rod away from the connecting sleeve, the first compression spring is located on the outside of the connecting rod, and the second compression spring is located on the outside of the guide block.
[0009] As a preferred solution of the utility model, an extrusion plate is provided at one end of the connecting sleeve close to the connecting rod, and the connecting sleeve is connected to the first compression spring through the extrusion plate.
[0010] As a preferred solution of the utility model, a guide groove is provided at the top of the connecting seat and on the outside of the guide block. The internal structure size of the guide groove is designed to correspond to the external structure size of the guide block. The guide block is connected to the second compression spring through the guide groove.
[0011] As a preferred solution of the utility model, both ends of the connecting seat close to the two groups of guide blocks are provided with accommodating blocks, and one end of the accommodating block close to the guide block is provided with an elastic buffer ball, and multiple groups of through grooves are opened on the outer side of the elastic buffer ball.
[0012] As a preferred solution of the utility model, an extrusion rod is provided at one end of the guide block close to the elastic buffer ball, the external structure size of the extrusion rod is designed to correspond to the internal structure size of the through groove, and the guide block is connected to the elastic buffer ball through the extrusion rod.
[0013] An AGV trolley comprises a trolley body, wherein the trolley body is located on the top of a chassis body and connected to the chassis body via a connecting frame, and an end of a buffer assembly away from the chassis body is connected to the connecting frame.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] In the utility model, through the design of the buffer component, when the driven wheel is displaced by vibration, the connecting plate is driven to be displaced, so that the connecting seat can be displaced, and the guide block is driven to be displaced through the guide groove. When the guide block is displaced, the second compression spring is stretched, and the second compression spring is subjected to tension and rebounds, so that the guide block can be buffered. When the guide block is displaced, the extrusion rod is driven to be displaced, so that the extrusion rod can contact the through groove, squeeze the elastic buffer ball, so that the elastic buffer ball can buffer the guide block. At the same time, the displacement of the guide block enables the connecting rod to be displaced, and cooperates with the extrusion plate to perform the first compression spring, which is further buffered by the first compression spring, thereby preventing the chassis body from being broken in the process of overcoming obstacles and at the moment when the front wheel goes uphill when climbing a slope, and the vehicle is easily overturned. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the chassis of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the buffer component of the utility model;
[0019] Figure 4 This is a schematic diagram of the connecting block structure of the utility model.
[0020] In the figure: 1. chassis body; 2. driven wheel; 3. connecting plate; 4. buffer assembly; 5. driving wheel; 6. connecting seat; 7. connecting block; 8. connecting sleeve; 9. connecting rod; 10. guide block; 11. first compression spring; 12. second compression spring; 13. extrusion plate; 14. guide groove; 15. accommodation block; 16. elastic buffer ball; 17. through groove; 18. extrusion rod; 19. trolley body; 20. connecting frame. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] Example:
[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:
[0024] An AGV chassis comprises a chassis body 1, a plurality of driven wheels 2 are slidably connected to the bottom of the chassis body 1, two sets of driven wheels 2 are connected via a connecting plate 3, a buffer assembly 4 is provided at one end of the connecting plate 3 away from the driven wheels 2, and two sets of driving wheels 5 are rotatably connected to the bottom of the chassis body 1 and located between the plurality of driven wheels 2;
[0025] The buffer assembly 4 is used to buffer the vibration received by the driven wheel 2 .
[0026] Furthermore, the buffer assembly 4 is composed of a connecting seat 6, a connecting block 7, a connecting sleeve 8, a connecting rod 9, a guide block 10, a first compression spring 11 and a second compression spring 12. The connecting seat 6 is located at the end of the connecting plate 3 away from the driven wheel 2, the connecting block 7 is located at the end of the connecting seat 6 away from the connecting plate 3, the two sets of connecting sleeves 8 are rotatably connected to the outside of the connecting block 7, the connecting rod 9 is slidably connected to the end of the connecting sleeve 8 away from the connecting block 7, the guide block 10 is rotatably connected to the end of the connecting rod 9 away from the connecting sleeve 8, the first compression spring 11 is located on the outside of the connecting rod 9, and the second compression spring 12 is located on the outside of the guide block 10. When the driven wheel 2 is vibrated, it can be buffered by the buffer assembly 4, so that the chassis body 1 can be buffered to prevent the chassis body 1 from being in a state of imbalance during the obstacle surmounting process or when the front wheels go uphill when climbing a slope, which can easily cause the chassis body 1 to roll over.
[0027] Among them, an extrusion plate 13 is provided at one end of the connecting sleeve 8 close to the connecting rod 9, and the connecting sleeve 8 is connected to the first compression spring 11 through the extrusion plate 13. The extrusion plate 13 is brought into contact with the first compression spring 11 so that the connecting sleeve 8 can be in contact with the first compression spring 11. When the connecting sleeve 8 is displaced, the first compression spring 11 can be squeezed by the extrusion plate 13, so that the first compression spring 11 can buffer the connecting sleeve 8.
[0028] Secondly, a guide groove 14 is provided at the top of the connecting seat 6 and on the outside of the guide block 10. The internal structure size of the guide groove 14 is designed to correspond to the external structure size of the guide block 10. The guide block 10 is connected to the second compression spring 12 through the guide groove 14. The guide block 10 and the guide groove 14 are slidably connected so that the guide block 10 can be connected to the connecting seat 6. When the guide block 10 is displaced, it can be guided by the guide groove 14 to prevent the guide block 10 from being offset. At the same time, the guide groove 14 allows the guide block 10 to be connected to the second compression spring 12. When the guide block 10 is displaced, the second compression spring 12 is stretched. The second compression spring 12 is subjected to tension and rebounds, so that the guide block 10 can be buffered.
[0029] Furthermore, both ends of the connecting seat 6 near the two groups of guide blocks 10 are provided with accommodating blocks 15, and the end of the accommodating block 15 near the guide block 10 is provided with an elastic buffer ball 16, and multiple groups of through grooves 17 are opened on the outer side of the elastic buffer ball 16. The end of the guide block 10 near the elastic buffer ball 16 is provided with an extrusion rod 18, and the external structure size of the extrusion rod 18 is designed to correspond to the internal structure size of the through groove 17. The guide block 10 is connected to the elastic buffer ball 16 through the extrusion rod 18. When the guide block 10 is displaced, the extrusion rod 18 is driven to displace, so that the extrusion rod 18 can contact the through groove 17, squeeze the elastic buffer ball 16, and enable the elastic buffer ball 16 to buffer the guide block 10.
[0030] The utility model also provides an AGV trolley using an AGV chassis, including a trolley body 19, the trolley body 19 is located on the top of the chassis body 1, and the trolley body 19 is connected to the chassis body 1 through a connecting frame 20, and the end of the buffer component 4 away from the chassis body 1 is connected to the connecting frame 20, and the connecting frame 20 is connected to the chassis body 1, so that the trolley body 19 can be connected to the chassis body 1.
[0031] In this embodiment, the implementation scenario is specifically as follows: in actual use, when the driven wheel 2 is vibrated and displaced, the connecting plate 3 is driven to be displaced, so that the connecting seat 6 can be displaced, and the guide block 10 is driven to be displaced through the guide groove 14. When the guide block 10 is displaced, the second compression spring 12 is stretched, and the second compression spring 12 is subjected to tension and rebounds, so that the guide block 10 can be buffered, and when the guide block 10 is displaced, the extrusion rod 18 is driven to be displaced, so that the extrusion rod 18 can contact the through groove 17, and the elastic buffer ball 16 is squeezed, so that the elastic buffer ball 16 can buffer the guide block 10. At the same time, the displacement of the guide block 10 enables the connecting rod 9 to be displaced, and the first compression spring 11 is further buffered by the first compression spring 11 in cooperation with the extrusion plate 13, so as to prevent the chassis body 1 from being in the process of overcoming obstacles and the moment when the front wheel goes uphill when climbing. The balance of the whole vehicle is broken, and it is very easy to roll over. Compared with the existing AGV chassis, the utility model can improve the overall practicality of the AGV chassis through design.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An AGV chassis, comprising a chassis body (1), characterized in that: The bottom of the chassis body (1) is slidably connected to a plurality of sets of driven wheels (2), two sets of the driven wheels (2) are connected via a connecting plate (3), a buffer assembly (4) is provided at one end of the connecting plate (3) away from the driven wheels (2), and two sets of driving wheels (5) are rotatably connected at the bottom of the chassis body (1) and located between the plurality of sets of driven wheels (2); The buffer assembly (4) is used to buffer the vibration received by the driven wheel (2).
2. The AGV chassis according to claim 1, characterized in that: The buffer assembly (4) is composed of a connecting seat (6), a connecting block (7), a connecting sleeve (8), a connecting rod (9), a guide block (10), a first compression spring (11) and a second compression spring (12); the connecting seat (6) is located at one end of the connecting plate (3) away from the driven wheel (2); the connecting block (7) is located at one end of the connecting seat (6) away from the connecting plate (3); the two groups of connecting sleeves (8) are both rotatably connected to the outside of the connecting block (7); the connecting rod (9) is slidably connected to one end of the connecting sleeve (8) away from the connecting block (7); the guide block (10) is rotatably connected to one end of the connecting rod (9) away from the connecting sleeve (8); the first compression spring (11) is located at the outside of the connecting rod (9); and the second compression spring (12) is located at the outside of the guide block (10).
3. The AGV chassis according to claim 2, characterized in that: An extrusion plate (13) is provided at one end of the connecting sleeve (8) close to the connecting rod (9), and the connecting sleeve (8) is connected to the first compression spring (11) via the extrusion plate (13).
4. The AGV chassis according to claim 2, characterized in that: A guide groove (14) is provided at the top of the connecting seat (6) and located on the outside of the guide block (10); the internal structure size of the guide groove (14) is designed to correspond to the external structure size of the guide block (10); and the guide block (10) is connected to the second compression spring (12) via the guide groove (14).
5. The AGV chassis according to claim 2, characterized in that: The connecting seat (6) is provided with a receiving block (15) at both ends close to the two groups of guide blocks (10); an elastic buffer ball (16) is provided at one end of the receiving block (15) close to the guide block (10); and a plurality of through grooves (17) are provided on the outer side of the elastic buffer ball (16).
6. The AGV chassis according to claim 5, characterized in that: An extrusion rod (18) is provided at one end of the guide block (10) close to the elastic buffer ball (16); the external structure size of the extrusion rod (18) is designed to correspond to the internal structure size of the through slot (17); and the guide block (10) is connected to the elastic buffer ball (16) via the extrusion rod (18).
7. An AGV vehicle, characterized in that: The AGV trolley adopts the AGV chassis of any one of claims 1 to 6, including a trolley body (19), the trolley body (19) is located on the top of the chassis body (1), and the trolley body (19) is connected to the chassis body (1) through a connecting frame (20), and the end of the buffer component (4) away from the chassis body (1) is connected to the connecting frame (20).