Damping steering wheel and trolley
By designing a combination structure of floating seats and elastic components on the steering wheel of the AGV, the problems of easy damage to the steering wheel on uneven ground and inconvenient steering are solved, achieving stable shock absorption and large-angle rotation, thus improving the operating performance of the AGV.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRUKING TECH LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-15
AI Technical Summary
The steering wheels of existing AGVs are easily impacted on uneven ground, resulting in a shortened service life, unstable traction, and inconvenient turning in confined spaces. The large size of the floating device also leads to unstable operation.
The design incorporates a steering wheel assembly, connecting seat, floating seat, and elastic components. Through the cooperation of the elastic components and adjustment components, the steering wheel achieves shock absorption and stable rotation. The height of the floating seat is reduced, the stroke of the elastic components is shortened, enhancing the shock absorption effect. The compact layout of the guide rods and bushings ensures large-angle rotation of the steering wheel within the compact vehicle body.
It improves the service life and operational stability of the steering wheel, enhances the shock absorption effect on uneven ground, and enables stable large-angle steering in confined spaces.
Smart Images
Figure CN224240777U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of logistics and transportation technology, and in particular relates to a shock-absorbing steering wheel and a trolley. Background Technology
[0002] There are many types of drive methods for AGVs, with steering wheel drive being a relatively common one. When a steering wheel-driven AGV moves forward, the driving traction force acts directly on the steering wheel. On uneven ground, when the AGV is loaded, the transmission components of the steering wheel are easily impacted, directly reducing the normal service life of the steering wheel. At the same time, the pressure between the steering wheel and the ground will also change constantly, causing the steering wheel's traction force to be too large or too small, affecting the steering wheel's guiding function for the AGV.
[0003] In some special locations, AGVs need to maneuver and turn in narrow spaces, which is very inconvenient. One important reason is that the AGV steering wheel is too large due to the large size of the floating device. It is not convenient to achieve large-angle rotation of the steering wheel in the relatively compact vehicle body. Some existing steering wheels are very long, and the floating device is long from the ground. When the AGV is running, the steering wheel is easy to shake, resulting in unstable operation. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a shock-absorbing steering wheel and trolley with a compact structure and stable operation.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A shock-absorbing steering wheel includes a steering wheel assembly, a connecting seat, a floating seat, and an elastic element. The connecting seat includes a first connecting plate, a second connecting plate, and a guide rod. The elastic element abuts between the floating seat and the first connecting plate and is provided with an adjustment component. The first connecting plate is connected to the steering wheel assembly. The guide rod passes through the floating seat and is connected between the first and second connecting plates. The structure is compact and the operation is stable.
[0007] As a further improvement to the above technical solution:
[0008] The floating seat includes a first fixed plate, a support column, and a second fixed plate. The first fixed plate is connected to the second fixed plate through the support column. The second fixed plate is located above the first connecting plate, and the first fixed plate is located below the second connecting plate. The guide rod passes through the first fixed plate and the second fixed plate and connects the first connecting plate and the second connecting plate. The adjustment component is fixed on the first fixed plate. The structure is compact and easy to adjust.
[0009] The second fixing plate is connected to the frame of the trolley, making it easy to assemble and disassemble.
[0010] The guide rod is fitted with a first bushing and a second bushing, and an adjustment component and a second fixing plate are fitted over the first bushing and the second bushing.
[0011] The first bushing and the second bushing are oil-free bushings.
[0012] The adjustment assembly includes an adjustment bracket, an adjustment bolt, and an anti-loosening block. The adjustment bracket is sleeved on the first bushing, and the adjustment bolt is locked to the first fixed plate by the anti-loosening block. The end of the adjustment bolt abuts against the adjustment bracket for easy adjustment.
[0013] The adjusting bracket includes a third connecting plate and a fixing block. The third connecting plate is sleeved on the first bushing. The fixing block has a guide post at its end. The guide post is sleeved inside the elastic element so that one end of the elastic element abuts against the fixing block. The third connecting plate and the fixing block are fixedly connected.
[0014] The first fixing plate, the second fixing plate, the first connecting plate, and the second connecting plate are provided with clearance holes for threading wires in the middle.
[0015] The first connecting plate and the second connecting plate are connected by two sets of guide rods arranged opposite each other. The adjustment components are arranged in two sets opposite each other and are arranged between the guide rods. There are four support columns. The four support shafts are arranged on the outside of the guide rods and the adjustment components, and the support columns are arranged between the guide rods and the adjustment components. The structure is compact and reasonable.
[0016] A small vehicle includes two sets of shock-absorbing steering wheels, which are arranged diagonally to ensure shock absorption.
[0017] Compared with the prior art, the advantages of this utility model are:
[0018] This utility model discloses a shock-absorbing steering wheel and trolley, comprising a steering wheel assembly, a connecting seat, a floating seat, and an elastic element. The connecting seat includes a first connecting plate, a second connecting plate, and a guide rod. The elastic element abuts between the floating seat and the first connecting plate, and is equipped with an adjustment component. The first connecting plate connects to the steering wheel assembly, and the guide rod passes through the floating seat and connects between the first and second connecting plates. Because the elastic element abuts between the floating seat and the first connecting plate, and the guide rod connecting the first and second connecting plates passes through the floating seat, when the shock-absorbing steering wheel is installed on the trolley, it is connected to the trolley via the floating seat. The fixed surface of the shock-absorbing steering wheel is located on the floating seat rather than the connecting seat. The height of the floating seat is lower than that of the second connecting plate, resulting in a shorter stroke for the elastic element, better shock absorption, and more stable operation. The steering wheel assembly is equipped with a connecting seat, a floating seat, and an elastic element, with the guide rod of the connecting seat passing through the floating seat. The structure is compact, facilitating large-angle rotation of the steering wheel within the limited space of the vehicle body. The elastic element is equipped with an adjustment component to adjust the compressive force of the elastic element, ensuring the shock absorption effect. Attached Figure Description
[0019] Figure 1 This is a perspective view of a shock-absorbing steering wheel according to the present invention;
[0020] Figure 2 This is a schematic diagram of the structure of a shock-absorbing steering wheel according to the present invention;
[0021] Figure 3 This is a schematic diagram of the structure of a small vehicle according to the present invention.
[0022] The reference numerals in the figures of this utility model are as follows: 1. Steering wheel assembly; 2. First connecting plate; 3. Second connecting plate; 4. Guide rod; 5. Adjustment assembly; 6. First fixing plate; 7. Elastic element; 8. Support column; 9. Second fixing plate; 10. Frame; 11. First bushing; 12. Second bushing; 51. Adjustment bracket; 52. Adjustment bolt; 53. Anti-loosening block; 511. Third connecting plate; 512. Fixing block; 513. Guide column; 13. Clearance hole; 100. Connecting seat; 200. Floating seat. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] like Figures 1 to 3 The diagram illustrates a shock-absorbing steering wheel and trolley, comprising a steering wheel assembly 1, a connecting seat 100, a floating seat 200, and an elastic element 7. The connecting seat 100 includes a first connecting plate 2, a second connecting plate 3, and a guide rod 4. The elastic element 7 abuts between the floating seat 200 and the first connecting plate 2, and is equipped with an adjustment component 5. The first connecting plate 2 connects to the steering wheel assembly 1, and the guide rod 4 passes through the floating seat 200 and connects between the first connecting plate 2 and the second connecting plate 3. Because the elastic element 7 abuts between the floating seat 200 and the first connecting plate 2, and the guide rod 4 connecting the first connecting plate 2 and the second connecting plate 3 passes through the floating seat 200, when the shock-absorbing steering wheel is installed on the trolley, it is connected to the trolley via the floating seat 200. The fixed surface of the shock-absorbing steering wheel is located on the floating seat 200 instead of the connecting seat 100. The height of the floating seat 200 is lower than that of the second connecting plate 3, resulting in a shorter stroke for the elastic element 7, better shock absorption, and more stable operation. The steering wheel assembly includes a connecting seat 100, a floating seat 200, and an elastic element 7. The guide rod 4 of the connecting seat 100 passes through the floating seat 200, resulting in a compact structure that facilitates large-angle rotation of the steering wheel within the confined space of the vehicle body. The elastic element is equipped with an adjustment component 5 to adjust the compressive force of the elastic element 5, ensuring effective shock absorption.
[0025] The floating seat 200 includes a first fixed plate 6, a support column 8, and a second fixed plate 9. The first fixed plate 6 is connected to the second fixed plate 9 through the support column 8. The second fixed plate 9 is located above the first connecting plate 2, and the first fixed plate 6 is located below the second connecting plate 3. The guide rod 4 passes through the first fixed plate 6 and the second fixed plate 9 and connects the first connecting plate 2 and the second connecting plate 3. The adjustment component 5 is fixed on the first fixed plate 6, which is located on top, to facilitate adjustment operations.
[0026] When only the shock-absorbing steering wheel is present, the floating seat 200 floats relative to the steering wheel assembly 1 when it is installed on the steering wheel assembly 1. However, when the steering wheel assembly 1 is installed on the trolley, it is fixed to the trolley through the floating seat 200. When the trolley runs to an uneven position, the first connecting plate 2 and the third connecting plate 3 are raised and lowered through the guide rod 4 to complete the shock absorption.
[0027] The second fixed plate 9 connects to the frame 10 of the trolley. The second fixed plate 9 serves as a fixed surface and is set at the bottom, which lowers the center of gravity of the entire structure, effectively reducing the generation of harmful forces. It is also as close as possible to the steering wheel assembly 1 to prevent the lever arm from growing and causing structural instability. This results in better shock absorption and more stable operation.
[0028] The guide rod 4 is fitted with a first bushing 11 and a second bushing 12 to guide the lifting and lowering process of the guide rod 4. The first bushing 11 and the second bushing 12 are fitted with an adjustment component 5 and a second fixing plate 9 to achieve stable lifting and lowering when the connecting seat 100 and the floating seat 200 move relative to each other.
[0029] The first bushing 11 and the second bushing 12 are oil-free bushings. The use of two oil-free bushings on the same guide rod 4 makes the structure more compact.
[0030] The adjustment assembly 5 includes an adjustment bracket 51, an adjustment bolt 52, and an anti-loosening block 53. The adjustment bracket 51 is sleeved on the first bushing 11, and the adjustment bolt 52 is locked on the first fixed plate 6 by the anti-loosening block 53. The end of the adjustment bolt 52 abuts against the adjustment bracket 51, which facilitates adjustment and effectively prevents loosening.
[0031] The adjusting bracket 51 includes a third connecting plate 511 and a fixing block 512. The third connecting plate 511 is sleeved on the first bushing 11. The end of the fixing block 512 is provided with a guide post 513. The guide post 513 is sleeved in the elastic member 7 so that one end of the elastic member 7 abuts against the fixing block 512. The third connecting plate 511 and the fixing block 512 are fixedly connected, which facilitates processing and adjustment.
[0032] The first fixing plate 6, the second fixing plate 9, the first connecting plate 2 and the second connecting plate 3 are provided with clearance holes 13 for wire routing, which are used for wiring of the motor, reducer and other equipment of the steering wheel assembly 1.
[0033] The first connecting plate 2 and the second connecting plate 3 are connected by two sets of guide rods 4 arranged opposite to each other. Two sets of adjustment components 5 are arranged opposite to each other. The adjustment components 5 are arranged between the guide rods 4. There are four support columns 8. The four support shafts are arranged on the outside of the guide rods 4 and the adjustment components 5. The support columns 8 are arranged between the guide rods 4 and the adjustment components 5. The structure is compact.
[0034] A small vehicle includes two sets of shock-absorbing steering wheels as described above, the two sets of shock-absorbing steering wheels being arranged diagonally to ensure shock absorption effect.
[0035] Working process: The second fixed plate 9 is connected to the trolley frame 10. The adjusting bolt 52 is set to the screw-in length during the trolley debugging stage, which is the preload of the elastic element 7 (spring). The steering wheel assembly 1 is pressed tightly against the ground under the action of the spring. When the trolley moves to the uneven ground, the steering wheel assembly 1 floats up and down with the first connecting plate 2. The guide rod 4 slides up and down in the oil-free bushing. The spring absorbs the up and down floating amount of the steering wheel assembly 1, ensuring that the AGV trolley runs smoothly.
[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.
Claims
1. A shock-absorbing steering wheel, characterized in that, The device includes a steering wheel assembly (1), a connecting seat (100), a floating seat (200), and an elastic element (7). The connecting seat (100) includes a first connecting plate (2), a second connecting plate (3), and a guide rod (4). The elastic element (7) abuts between the floating seat (200) and the first connecting plate (2). An adjustment component (5) is provided on the elastic element (7). The first connecting plate (2) is connected to the steering wheel assembly (1). The guide rod (4) passes through the floating seat (200) and is connected between the first connecting plate (2) and the second connecting plate (3).
2. The shock-absorbing steering wheel as described in claim 1, characterized in that, The floating seat (200) includes a first fixed plate (6), a support column (8), and a second fixed plate (9). The first fixed plate (6) is connected to the second fixed plate (9) through the support column (8). The second fixed plate (9) is located above the first connecting plate (2), and the first fixed plate (6) is located below the second connecting plate (3). The guide rod (4) passes through the first fixed plate (6) and the second fixed plate (9) to connect the first connecting plate (2) and the second connecting plate (3). The adjustment component (5) is fixed on the first fixed plate (6).
3. The shock-absorbing steering wheel as described in claim 2, characterized in that: The second fixing plate (9) is connected to the frame (10) of the trolley.
4. The shock-absorbing steering wheel as described in claim 2, characterized in that: The guide rod (4) is fitted with a first bushing (11) and a second bushing (12), and the first bushing (11) and the second bushing (12) are fitted with an adjustment component (5) and a second fixing plate (9).
5. The shock-absorbing steering wheel as described in claim 4, characterized in that: The first bushing (11) and the second bushing (12) are oil-free bushings.
6. The shock-absorbing steering wheel as described in claim 4, characterized in that: The adjustment assembly (5) includes an adjustment bracket (51), an adjustment bolt (52), and an anti-loosening block (53). The adjustment bracket (51) is sleeved on the first bushing (11), and the adjustment bolt (52) is locked on the first fixing plate (6) by the anti-loosening block (53). The end of the adjustment bolt (52) abuts against the adjustment bracket (51).
7. The shock-absorbing steering wheel as described in claim 6, characterized in that: The adjusting bracket (51) includes a third connecting plate (511) and a fixing block (512). The third connecting plate (511) is sleeved on the first bushing (11). The fixing block (512) has a guide post (513) at its end. The guide post (513) is sleeved in the elastic member (7) so that one end of the elastic member (7) abuts against the fixing block (512). The third connecting plate (511) and the fixing block (512) are fixedly connected.
8. The shock-absorbing steering wheel as described in claim 2, characterized in that: The first fixing plate (6), the second fixing plate (9), the first connecting plate (2) and the second connecting plate (3) are provided with clearance holes (13) for threading.
9. The shock-absorbing steering wheel as described in claim 2, characterized in that, The first connecting plate (2) and the second connecting plate (3) are connected by two sets of guide rods (4) arranged opposite to each other. The adjustment components (5) are arranged in two sets opposite to each other. The adjustment components (5) are arranged between the guide rods (4). There are four support columns (8). The four support shafts are arranged on the outside of the guide rods (4) and the adjustment components (5), and the support columns (8) are arranged between the guide rods (4) and the adjustment components (5).
10. A small vehicle, characterized in that, It includes two sets of shock-absorbing steering wheels as described in any one of claims 1-9, wherein the two sets of shock-absorbing steering wheels are arranged diagonally.