Damping structure and AGV trolley
By designing the shock absorbing structure of guide columns and elastic parts on the AGV car, the problem of unstable driving on uneven grounds is solved, and the shock absorbing effect with a simple structure and small space occupancy is achieved, ensuring the flexibility of the car and driving stability.
Patent Information
- Application Number
- CN202420547428.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-20
AI Technical Summary
AGV trolleys are easily subjected to inertial impacts during acceleration and deceleration or driving, and the uneven floor of the workshop leads to unstable driving. The existing shock absorption structure is complex and takes up a large space, which affects the flexibility of the trolley.
Design a shock absorbing structure including main body, guide column, elastic parts, connecting frame and wheel assembly. Through the cooperation of guide column and elastic parts, the buffering and shock absorbing effect can be achieved. The structure is simple and the space occupies a small amount, making full use of the interior of the AGV car space.
Effectively alleviate the vibration of AGV cars on uneven grounds, avoid the increase in volume due to the increase in the vibration absorption structure, provide flexible shock absorption adjustment capabilities, and ensure the smooth driving of the car.
Smart Images
Figure CN222136897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to AGV trolleys, in particular to a shock absorbing structure and an AGV trolley. Background Art
[0002] As AGVs are increasingly used in traditional manufacturing, the requirements for AGVs are also getting higher and higher. The flexibility and environmental adaptability of AGVs allow them to operate well in workshops with relatively poor environments.
[0003] However, the AGV will be affected by inertia when accelerating, decelerating, starting or stopping, and external factors such as the ups and downs of the workshop floor, slopes, grooves and steps will affect the normal driving of the AGV. Therefore, in order to ensure the smooth driving of the AGV, a shock-absorbing structure is usually required.
[0004] Since the steering wheel currently used in the AGV is a highly integrated product, the steering wheel itself does not have a shock-absorbing structure, so it is necessary to add an additional shock-absorbing structure on the basis of the steering wheel. However, most of the shock-absorbing structures on the market are complex and bulky. Adding a shock-absorbing structure will affect the overall volume of the AGV, thereby affecting the flexibility of the AGV. Utility Model Content
[0005] Based on this, it is necessary to provide a shock-absorbing structure and an AGV trolley with relatively small space occupation to address the problem that adding a shock-absorbing structure to the AGV trolley will affect the volume and flexibility of the AGV trolley.
[0006] The present application first provides a shock absorbing structure, including a main body, a guide column, an elastic member, a connecting frame and a wheel assembly, wherein:
[0007] At least two vertically arranged guide pillars are fixed to the upper surface of the main body, the connecting frame is slidably connected to each of the guide pillars, the wheel assembly is arranged on the connecting frame, one end of the elastic member is fixed to the connecting frame, and the other end is fixed to the guide pillar or the main body, and the elastic member undergoes elastic deformation when the connecting frame moves away from the main body along the length direction of the guide pillar.
[0008] In some embodiments, an adjusting member is disposed on each of the guide posts, and the adjusting member is adjustably fixed to the corresponding guide post along the length direction of the guide post, and the other end of the elastic member is fixed to the adjusting member.
[0009] In some embodiments, the adjusting member is a nut, and the nut is threadedly connected to the corresponding guide column.
[0010] In some embodiments, the elastic member is a compression spring, and each of the guide pillars is sleeved with a compression spring, the upper end of the compression spring is fixed to the nut, and the lower end is fixed to the connecting frame.
[0011] In some embodiments, the elastic member is a tension spring, and each of the guide pillars is sleeved with a tension spring, the upper end of the tension spring is fixed to the connecting frame, and the lower end is fixed to the nut.
[0012] In some embodiments, a wheel hole is formed through the main body in a vertical direction, a top end of the wheel assembly is fixed to the connecting frame, and the wheel assembly passes through the wheel hole.
[0013] In some embodiments, four guide pillars are evenly distributed on the upper surface of the main body along the circumference of the wheel hole.
[0014] In some embodiments, the connecting frame includes a wheel fixing plate and a connecting plate corresponding to the guide column one by one, the wheel assembly is fixed to the wheel fixing plate, the connecting plate is L-shaped, the top end of the connecting plate is fixed to the wheel fixing plate, and the bottom end of the connecting plate is slidably connected to the corresponding guide column.
[0015] In some embodiments, the shock absorbing structure further includes a top plate, and the top end of each of the guide pillars is fixed to the top plate.
[0016] A second aspect of the present application provides an AGV cart, comprising the above-mentioned shock absorbing structure.
[0017] The above-mentioned shock-absorbing structure guides the movable path of the connecting frame through the guide pillars arranged on the upper surface of the main body, and cooperates with the elastic deformation of the elastic member to achieve the effect of buffering and shock absorption. It has a simple structure and occupies a small space. Moreover, since the guide pillars and the elastic member are both located on the upper surface of the main body, the internal space of the AGV trolley can be fully utilized, avoiding the situation where the volume of the AGV trolley increases due to the addition of the shock-absorbing structure, thereby affecting the flexibility of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A three-dimensional diagram of the wheel structure of this application;
[0019] Figure 2 This is a front view of the wheel structure of the present application.
[0020] Figure numerals: 10, main body; 11, wheel hole; 20, guide column; 21, nut; 30, connecting frame; 31, wheel fixing plate; 32, connecting plate; 40, wheel assembly; 50, compression spring; 60, top plate. DETAILED DESCRIPTION
[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0027] Please combine Figure 1 as well as Figure 2 As shown, the present application first provides a shock absorbing structure, including a main body 10, a guide column 20, an elastic member, a connecting frame 30 and a wheel assembly 40, wherein at least two vertically arranged guide columns 20 are fixed to the upper surface of the main body 10, the connecting frame 30 is slidably connected to each guide column 20, the wheel assembly 40 is arranged on the connecting frame 30, one end of the elastic member is fixed to the connecting frame 30, and the other end is fixed to the guide column 20 or the main body 10, and the elastic member undergoes elastic deformation when the connecting frame 30 moves away from the main body 10 along the length direction of the guide column 20.
[0028] In the present application, the movable path of the connecting frame 30 is guided by the guide column 20 arranged on the upper surface of the main body 10, and the elastic deformation of the elastic member plays a buffering and shock-absorbing effect. The structure is simple and the space occupied is small. Moreover, since the guide column 20 and the elastic member are both located on the upper surface of the main body 10, the internal space of the AGV cart can be fully utilized, avoiding the situation where the volume of the AGV cart increases due to the addition of a shock-absorbing structure, thereby affecting the flexibility of the cart.
[0029] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, an adjusting member is provided on each guide post 20 , and the adjusting member is adjustably fixed to the corresponding guide post 20 along the length direction of the guide post 20 , and the other end of the elastic member is fixed to the adjusting member.
[0030] It is not difficult to understand that the force required for the elastic part to undergo the same degree of elastic deformation gradually increases with the increase in the degree of elastic deformation. Therefore, by adjusting the position of the adjusting part on the guide column 20 along the length direction of the guide column 20, the degree of elastic deformation of the elastic part in the initial state can be adjusted, thereby changing the shock absorbing capacity of the shock absorbing structure and increasing the versatility of the shock absorbing structure of the present application.
[0031] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the adjusting member is a nut 21 , and the nut 21 is threadedly connected to the corresponding guide column 20 .
[0032] The threaded connection between the nut 21 and the guide column 20 is simple to adjust and occupies less space than other adjustable fixing methods, so that the shock absorbing structure of the present application can flexibly adjust the shock absorbing force while occupying a relatively small space.
[0033] Of course, in some other embodiments, the adjusting member and the guide post 20 may be connected by snap-fitting or other commonly used fixed connection methods, as long as the position of the adjusting member relative to the guide post 20 can be adjusted as needed.
[0034] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the elastic member is a compression spring 50 , and each guide column 20 is sleeved with a compression spring 50 . The upper end of the compression spring 50 is fixed to the nut 21 , and the lower end is fixed to the connecting frame 30 .
[0035] Taking a bump on the road as an example, when the wheel assembly passes the bump, the wheel assembly is lifted upward, thereby squeezing the compression spring 50 upward through the connecting frame 30, and absorbing vibrations through the compression deformation of the compression spring 50 to prevent vibrations from being transmitted to the main body 10.
[0036] In some embodiments, a gasket is sleeved on the guide column 20 and is located between the nut 21 and the compression spring 50 . The two ends of the compression spring 50 are respectively against the gasket and the connecting frame 30 for easy installation.
[0037] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the elastic member is a tension spring, and each guide column 20 is sleeved with a tension spring, the upper end of the tension spring is fixed to the connecting frame 30, and the lower end is fixed to the nut 21.
[0038] Of course, the elastic part can also be selected as a rubber belt or other commonly used elastic parts, as long as the setting position of the elastic part is adaptively selected according to whether the elastic part is deformed by tension or compression. Specifically, if the elastic part is deformed by tension, the setting position is referenced to the tension spring. Conversely, if the elastic part is deformed by compression, the setting position is referenced to the compression spring 50. The present application does not further limit the type of elastic part.
[0039] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the main body 10 is provided with a wheel hole 11 in the vertical direction, the top end of the wheel assembly 40 is fixed to the connecting frame 30, and the wheel assembly 40 passes through the wheel hole 11; that is, part of the wheel assembly 40 is located on the upper side of the main body 10 to increase space utilization and reduce the overall volume of the shock-absorbing structure of the present application.
[0040] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, four guide pillars 20 are evenly distributed on the upper surface of the main body 10 along the circumference of the wheel hole 11 .
[0041] For uneven roads, the elastic members on the four guide pillars 20 can adaptively deform and recover to meet the shock absorption requirements in different directions, thereby increasing the shock absorption effect of the shock absorption structure of the present application.
[0042] Of course, other numbers of guide posts 20 may also be provided on the main body 10 , as long as the guide posts 20 are evenly distributed along the circumference of the wheel hole 11 .
[0043] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the connecting frame 30 includes a wheel fixing plate 31 and a connecting plate 32 corresponding to the guide column 20 one by one, the wheel assembly 40 is fixed to the wheel fixing plate 31, the connecting plate 32 is L-shaped, the top end of the connecting plate 32 is fixed to the wheel fixing plate 31, and the bottom end of the connecting plate 32 is slidably connected to the corresponding guide column 20.
[0044] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, the shock absorbing structure further includes a top plate 60 , and the top end of each guide column 20 is fixed to the top plate 60 to increase the stability of the guide column 20 and prevent the guide column 20 from shaking.
[0045] A second aspect of the present application provides an AGV cart, comprising the above-mentioned shock absorbing structure.
[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A shock absorbing structure, characterized in that: It comprises a main body (10), a guide column (20), an elastic member, a connecting frame (30) and a wheel assembly (40), wherein: At least two vertically arranged guide posts (20) are fixed on the upper surface of the main body (10); the connecting frame (30) is slidably connected to each of the guide posts (20); the wheel assembly (40) is arranged on the connecting frame (30); one end of the elastic member is fixed to the connecting frame (30) and the other end is fixed to the guide post (20) or the main body (10); and the elastic member undergoes elastic deformation when the connecting frame (30) moves away from the main body (10) along the length direction of the guide post (20).
2. The shock absorbing structure according to claim 1, characterized in that: Each guide post (20) is provided with an adjusting member, which is adjustably fixed to the corresponding guide post (20) along the length direction of the guide post (20), and the other end of the elastic member is fixed to the adjusting member.
3. The shock absorbing structure according to claim 2, characterized in that: The adjusting member is a nut (21), and the nut (21) is threadedly connected to the corresponding guide column (20).
4. The shock absorbing structure according to claim 3, characterized in that: The elastic member is a compression spring (50), and each guide column (20) is sleeved with a compression spring (50). The upper end of the compression spring (50) is fixed to the nut (21), and the lower end is fixed to the connecting frame (30).
5. The shock absorbing structure according to claim 3, characterized in that: The elastic member is a tension spring, and each guide column (20) is sleeved with a tension spring. The upper end of the tension spring is fixed to the connecting frame (30), and the lower end is fixed to the nut (21).
6. The shock absorbing structure according to claim 1, characterized in that: The main body (10) is provided with a wheel hole (11) extending through it in the vertical direction; the top end of the wheel assembly (40) is fixed to the connecting frame (30), and the wheel assembly (40) passes through the wheel hole (11).
7. The shock absorbing structure according to claim 6, characterized in that: Four guide pillars (20) are evenly distributed on the upper surface of the main body (10) along the circumference of the wheel hole (11).
8. The shock absorbing structure according to claim 6, characterized in that: The connecting frame (30) comprises a wheel fixing plate (31) and a connecting plate (32) corresponding to the guide column (20) one by one, the wheel assembly (40) is fixed to the wheel fixing plate (31), the connecting plate (32) is L-shaped, the top end of the connecting plate (32) is fixed to the wheel fixing plate (31), and the bottom end of the connecting plate (32) is slidably connected to the corresponding guide column (20).
9. The shock absorbing structure according to claim 1, characterized in that: The shock absorbing structure further comprises a top plate (60), and the top end of each guide column (20) is fixed to the top plate (60).
10. An AGV vehicle, characterized in that: The invention comprises a shock absorbing structure as claimed in any one of claims 1 to 9.