Locking type suspension steering wheel and mobile vehicle
By using a locking suspension steering wheel structure, combined with the design of elastic components and clamps, the stability problem of the AGV chassis is solved, achieving stable and rigid support on undulating ground, avoiding suspension and swaying, and adapting to the activities of large-stroke arms or robots.
Patent Information
- Application Number
- CN202423282064.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When existing AGVs are equipped with long-stroke arms or multi-axis robots, the suspension system reduces chassis stability, posing a risk of chassis swaying or instability due to the movement of the arms or robots, and lacks rigid support capabilities.
It adopts a locking suspension steering wheel structure, including a moving wheel, mounting bracket, suspension bracket, elastic component, guide and clamp. The elastic component provides suspension function, and the cooperation of the guide and clamp provides rigid support to avoid suspension and swaying.
It enables the suspended steering wheel to be effectively supported on uneven ground, avoiding suspension and ensuring the stability of the AGV, especially when the long-stroke arm or robot is working, it does not shake or become unstable.
Smart Images
Figure CN223618825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated guided vehicles (AGVs), and in particular to a locking suspension steering wheel and a mobile vehicle. Background Technology
[0002] Currently, AGVs are widely used in various industries to meet the need for stable movement of items or multi-axis robots, especially in automated factories with limited space. AGVs are commonly equipped with steering wheels, which are typically mounted directly to the frame or via a suspension mechanism. The suspension mechanism often uses a spring structure to ensure the AGV moves stably on the ground, particularly ensuring the steering wheels can adapt to uneven terrain and preventing items or robots on the AGV from tipping over due to the wheels being suspended in the air.
[0003] However, when a long-stroke arm or multi-axis robot is mounted on the upper part of the AGV, the presence of such a suspension device will reduce the chassis stability of the AGV. The chassis of the AGV is at risk of shaking or instability when the arm or robot moves, and it lacks the ability to provide rigid support on the ground at a specified time. Utility Model Content
[0004] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a locking suspension steering wheel, comprising: a movable wheel, a mounting frame, a suspension frame, at least one elastic component, at least one guide, and at least one clamp. The movable wheel is fixedly mounted on the suspension frame, the guide is fixedly mounted on the mounting frame, the suspension frame is slidably connected to the guide in a vertically movable manner, the elastic component is connected between the mounting frame and the suspension frame, and the clamp is fixedly mounted on the suspension frame. The clamp is used to lock or unlock the guide.
[0005] In another preferred embodiment, the guide is a guide shaft that extends vertically, with its upper end fixedly connected to the mounting bracket, and the clamp sleeved on the guide shaft.
[0006] In another preferred embodiment, it further includes a linear bearing fixedly mounted on the suspension bracket, and the guide shaft slidably passing through the linear bearing.
[0007] In another preferred embodiment, the guide is a slide rail that extends vertically, and a portion of the clamp is slidably mounted on the slide rail.
[0008] In another preferred embodiment, the elastic component includes a suspension shaft and a spring, the upper end of the suspension shaft being fixedly connected to the mounting bracket, the lower end of the suspension shaft being movably disposed through the suspension bracket, the spring being sleeved on the suspension shaft, the upper end of the spring contacting the mounting bracket, and the lower end of the spring contacting the suspension bracket.
[0009] In another preferred embodiment, the suspension bracket has a mounting groove, the bottom of the mounting groove has a through mounting hole, a stepped surface is formed between the mounting groove and the mounting hole, the lower end of the spring abuts against the stepped surface, and the lower end of the suspension shaft is movably disposed through the mounting hole.
[0010] In another preferred embodiment, the mounting bracket includes: a first plate and a second plate, the first plate extending vertically and the second plate extending horizontally, the first plate and the second plate being perpendicularly connected, and the upper end of the elastic component and the upper end of the guide being mounted on the second plate.
[0011] In another preferred embodiment, the clamp is located between the moving wheel and the first plate.
[0012] In another preferred embodiment, a limiting groove is formed at the bottom of the second plate, and the upper end of the spring extends into the limiting groove.
[0013] The present invention also aims to provide a mobile vehicle, including at least one locking suspension steering wheel as described in any one of the above, and further including: a vehicle body, wherein the locking suspension steering wheel is mounted on the vehicle body.
[0014] Because this utility model adopts the above-mentioned technical solution, its positive effects compared with the prior art are as follows:
[0015] By applying this utility model, a suspended steering wheel structure that can achieve automatic locking is provided. On the one hand, the setting of elastic components provides a suspension function, so that the moving wheel can effectively adapt to uneven ground, ensure that the moving wheel is effectively supported on the ground and avoids being suspended. On the other hand, with the cooperation of guide and clamp, the moving wheel can be operated in a rigid support, thereby avoiding the vehicle body shaking or instability when the large stroke arm or robot is working. Attached Figure Description
[0016] Figure 1 This is a side view of a first embodiment of a locking suspension steering wheel according to the present invention;
[0017] Figure 2 This is a partial cross-sectional view of a first embodiment of a locking suspension steering wheel according to the present invention;
[0018] Figure 3 This is a top-view schematic diagram of a first embodiment of a locking suspension steering wheel according to the present invention;
[0019] Figure 4 This is a schematic diagram of the suspension frame of a first embodiment of a locking suspension steering wheel according to the present invention;
[0020] Figure 5 This is a perspective view of a second embodiment of a locking suspension steering wheel according to the present invention;
[0021] Figure 6 This is a schematic diagram of a mobile vehicle according to the present invention.
[0022] In the attached image:
[0023] 1. Caster wheel; 2. Mounting bracket; 3. Suspension bracket; 4. Elastic component; 5. Guide; 6. Clamp; 7. Linear bearing; 8. Suspension shaft; 9. Spring; 10. Mounting groove; 11. Mounting hole; 12. First plate; 13. Second plate; 14. Limiting groove; 15. Vehicle body; 16. Housing. Detailed Implementation
[0024] The technical solution of this utility model 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 this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".
[0027] like Figures 1 to 3The diagram illustrates a locking suspension steering wheel as a first embodiment of the present invention, comprising: a movable wheel 1, a mounting frame 2, a suspension frame 3, at least one elastic component 4, at least one guide 5, and at least one clamp 6. The movable wheel 1 is fixedly mounted on the suspension frame 3, and the guide 5 is fixedly mounted on the mounting frame 2. The suspension frame 3 is slidably connected to the guide 5, which is movable up and down. The elastic component 4 is connected between the mounting frame 2 and the suspension frame 3. The clamp 6 is fixedly mounted on the suspension frame 3 and is used to lock or unlock the guide 5. Further, during normal movement, the clamp 6 can be in an unlocked state to allow the suspension frame 3 to slide up and down. At this time, depending on the road surface conditions, the movable wheel 1 floats up and down under the drive of the suspension frame 3 with the cooperation of the elastic component 4. When the movable wheel 1 stops at a specified point, the clamp 6 locks the guide 5 to prevent relative movement between the suspension frame 3 and the mounting frame 2, thus placing the movable wheel 1 in a rigid support state.
[0028] Furthermore, in a preferred embodiment, the guide 5 is a guide shaft that extends vertically, with its upper end fixedly connected to the mounting bracket 2, and the clamp 6 sleeved on the guide shaft.
[0029] Furthermore, as a preferred embodiment, the axial section of the upper end of the guide shaft is configured in the form of a first T-shape, and the upper end of the first T-shape abuts against the upper surface of the mounting bracket 2 and is fixed by a bolt structure.
[0030] Furthermore, as a preferred embodiment, it also includes: a linear bearing 7, which is fixedly mounted on the suspension frame 3, and the guide shaft is slidably disposed through the linear bearing 7.
[0031] Furthermore, in a preferred embodiment, the elastic component 4 includes: a suspension shaft 8 and a spring 9. The upper end of the suspension shaft 8 is fixedly connected to the mounting bracket 2, and the lower end of the suspension shaft 8 is movably disposed through the suspension frame 3. The spring 9 is sleeved on the suspension shaft 8, with the upper end of the spring 9 in contact with the mounting bracket 2 and the lower end of the spring 9 in contact with the suspension frame 3.
[0032] Furthermore, as a preferred embodiment, the axial section of the upper end of the suspension shaft 8 is configured as a second T-shaped structure, and the upper end of the second T-shaped structure abuts against the upper surface of the mounting bracket 2 and is fixed by a bolt structure.
[0033] Furthermore, as a preferred embodiment, the suspension bracket 3 has a mounting groove 10, and a mounting hole 11 is formed through the bottom of the mounting groove 10. A stepped surface is formed between the mounting groove 10 and the mounting hole 11. The lower end of the spring 9 abuts against the stepped surface, and the lower end of the suspension shaft 8 is movably disposed through the mounting hole 11.
[0034] Furthermore, as a preferred embodiment, the mounting bracket 2 includes: a first plate 12 and a second plate 13, the first plate 12 extending vertically and the second plate 13 extending horizontally, the first plate 12 and the second plate 13 being vertically connected, and the upper end of the elastic component 4 and the upper end of the guide 5 being mounted on the second plate 13.
[0035] Furthermore, as a preferred embodiment, the clamp 6 is located between the moving wheel 1 and the first plate 12.
[0036] Furthermore, as a preferred embodiment, a limiting groove 14 is provided at the bottom of the second plate 13, and the upper end of the spring 9 extends into the limiting groove 14.
[0037] Furthermore, as a preferred embodiment, the number of elastic components 4 is preferably two.
[0038] Furthermore, as a preferred embodiment, the number of guide elements 5 is preferably two.
[0039] Furthermore, as a preferred embodiment, the number of clamps 6 is preferably two.
[0040] Furthermore, as a preferred embodiment, the two elastic components 4 are disposed between the two guides 5.
[0041] Furthermore, as a preferred embodiment, the clamp 6 is positioned near the lower part of the guide 5.
[0042] Furthermore, as a preferred embodiment, the clamp 6 can use an air source or an electric power source as a power source, so that the clamp 6 can be driven to clamp the guide 5 to fix it by controlling the power source.
[0043] like Figure 4 As shown, further, as a preferred embodiment, the suspension bracket 3 is arranged in an inverted L-shaped structure.
[0044] Furthermore, as a preferred embodiment, the aforementioned movable wheel 1 is installed at the bottom of the horizontally extending portion of the suspension bracket 3.
[0045] Furthermore, as a preferred embodiment, the bottom of the aforementioned horizontal portion is provided with an interface for mounting the movable wheel 1, and the interface is fixedly connected to the upper end of the movable wheel 1 by a bolt structure.
[0046] Furthermore, as a preferred embodiment, the clamp 6 is fixedly installed on the vertically extending portion of the suspension bracket 3 by means of a bolt structure.
[0047] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model.
[0048] Based on the above, this utility model also has the following embodiments:
[0049] like Figure 5 As shown, this is the second embodiment of the locking suspension steering wheel of the present invention. The difference between it and the first embodiment described above is that the guide 5 used is different, and the linear bearing 7 is not used accordingly.
[0050] In a further embodiment of this utility model, the guide 5 is a slide rail, which extends vertically, and a portion of the clamp 6 is slidably mounted on the slide rail.
[0051] In a further embodiment of this utility model, the linear bearing 7 can be replaced by a slider in the second embodiment, and the slider can be slidably fitted onto the slide rail.
[0052] like Figure 6 The diagram illustrates a preferred embodiment of a mobile vehicle, comprising at least one locking suspension steering wheel as described in any of the preceding descriptions, and a vehicle body 15 on which the locking suspension steering wheel is mounted. Further, in addition to the locking suspension steering wheel, the vehicle body 15 may also be provided with other rigid wheels that do not have a suspension function, and preferably the sum of the number of locking suspension steering wheels and rigid wheels is at least four.
[0053] In a further embodiment of this utility model, the aforementioned locking suspension steering wheel and / or rigid wheel can both serve as drive wheels for actively driving the vehicle body 15 to move.
[0054] In a further embodiment of this utility model, the vehicle body 15 has an approximately rectangular structure.
[0055] In a further embodiment of this utility model, the four locking suspension steering wheels are preferably located at the four corners of the vehicle body 15.
[0056] In a further embodiment of this utility model, the number of locking suspension steering wheels is preferably two, and the two locking suspension steering wheels can be arranged diagonally.
[0057] In a further embodiment of the present invention, the vehicle body 15 has at least one hollow housing 16, the housing 16 is mounted on the main body of the vehicle body 15, the aforementioned locking suspension steering wheel is mounted inside the housing 16, and the movable wheel 1 protrudes from the lower end of the housing 16.
[0058] In a further embodiment of the present invention, the vehicle body 15 is fixedly mounted on the main body of the vehicle body 15 via the first plate 12.
[0059] In a further embodiment of the present invention, the first plate 12 is fixedly installed on a vertical wall of the vehicle body 15 by means of a bolt structure.
[0060] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A locking suspension steering wheel, characterized in that, include: The device includes a movable wheel, a mounting bracket, a suspension bracket, at least one elastic component, at least one guide, and at least one clamp. The movable wheel is fixedly mounted on the suspension bracket, the guide is fixedly mounted on the mounting bracket, the suspension bracket is slidably connected to the guide in a vertically movable manner, the elastic component is connected between the mounting bracket and the suspension bracket, and the clamp is fixedly mounted on the suspension bracket. The clamp is used to lock or unlock the guide.
2. The locking suspension steering wheel according to claim 1, characterized in that, The guide is a guide shaft that extends vertically. The upper end of the guide shaft is fixedly connected to the mounting bracket, and the clamp is sleeved on the guide shaft.
3. The locking suspension steering wheel according to claim 2, characterized in that, It also includes: a linear bearing, which is fixedly mounted on the suspension frame, and the guide shaft is slidably disposed through the linear bearing.
4. The locking suspension steering wheel according to claim 1, characterized in that, The guide is a slide rail, which extends vertically, and a portion of the clamp is slidably mounted on the slide rail.
5. The locking suspension steering wheel according to claim 1, characterized in that, The elastic component includes a suspension shaft and a spring. The upper end of the suspension shaft is fixedly connected to the mounting bracket, and the lower end of the suspension shaft is movably disposed through the suspension bracket. The spring is sleeved on the suspension shaft, with the upper end of the spring contacting the mounting bracket and the lower end of the spring contacting the suspension bracket.
6. The locking suspension steering wheel according to claim 5, characterized in that, The suspension bracket has a mounting groove, and a mounting hole is formed through the bottom of the mounting groove. A stepped surface is formed between the mounting groove and the mounting hole. The lower end of the spring abuts against the stepped surface, and the lower end of the suspension shaft is movably disposed through the mounting hole.
7. The locking suspension steering wheel according to claim 5, characterized in that, The mounting bracket includes a first plate and a second plate, the first plate extending vertically and the second plate extending horizontally, the first plate and the second plate being perpendicularly connected, and the upper end of the elastic component and the upper end of the guide being mounted on the second plate.
8. The locking suspension steering wheel according to claim 7, characterized in that, The clamp is located between the moving wheel and the first plate.
9. The locking suspension steering wheel according to claim 7, characterized in that, A limiting groove is provided at the bottom of the second plate, and the upper end of the spring extends into the limiting groove.
10. A mobile vehicle comprising at least one locking suspension steering wheel as described in any one of claims 1 to 9, characterized in that, Also includes: The vehicle body, on which the locking suspension steering wheel is mounted.