A swing bridge mechanism suitable for small and medium-sized robot platforms

Abstract

The utility model relates to swing bridge technical field. The utility model discloses a swing bridge mechanism suitable for small and medium -sized robot platform, including swing bridge, the both ends of swing bridge are provided with wheel shaft connecting assembly, still be equipped with angle connecting rod limiting component on swing bridge, be equipped with buffer shock attenuation spare between wheel shaft connecting assembly and swing bridge, and swing bridge is arc frame structure, wheel shaft connecting assembly includes wheel shaft, and is equipped with bearing in wheel shaft, angle connecting rod limiting component includes limiting rod, and both ends of limiting rod are equipped with limiting pad. The utility model is connected with the front and rear wheel shaft of robot, and swing bridge body is allowed to swing up and down in a certain range, when one side wheel lifts when meeting the barrier, the other side wheel can still adhere to the ground, avoid robot unbalance and lose drive, guarantee central box body bearing surface steady simultaneously, improve robot obstacle crossing ability and operation reliability, and the volume and cost demand of small and medium -sized platform are also considered.

Description

Technical Field

[0001] This utility model relates to the field of swing bridge technology. Background Technology

[0002] Currently, most small and medium-sized robot platforms on the market suffer from poor stability and weak obstacle-crossing ability when facing uneven terrain (such as roads with protruding rocks or potholes).

[0003] Traditional robots often use a fixed bridge to connect the front and rear axles. When one wheel encounters a high obstacle, it is prone to becoming suspended in the air, causing the robot to lose balance. This can not only interrupt the operation process but also result in a loss of some driving force, making it difficult to cross larger obstacles. Furthermore, the fixed bridge design causes the central housing's load-bearing surface to sway violently with terrain undulations. If carrying delicate equipment or fragile materials, this can easily lead to equipment damage and material loss. In addition, some robots with terrain adaptability have complex structures and large sizes, making them unsuitable for small and medium-sized platforms, and their high cost hinders large-scale deployment. Utility Model Content

[0004] The purpose of this invention is to provide a swing bridge mechanism suitable for small and medium-sized robot platforms. Through the independent swing bridge structure design, the robot platform surface is ensured to remain stable when traveling on rugged terrain.

[0005] To solve the above-mentioned technical problems, this utility model provides a swing bridge mechanism suitable for small and medium-sized robot platforms, including a swing bridge, with wheel and axle connecting assemblies respectively provided at both ends of the swing bridge, and an angle linkage limiting assembly also provided on the swing bridge; a buffer and shock absorber is provided between the wheel and axle connecting assemblies and the swing bridge, and the swing bridge has an arc-shaped frame structure; the wheel and axle connecting assemblies include wheel and axles, and bearings are provided inside the wheel and axles; the angle linkage limiting assembly includes a limiting rod, and limiting blocks are provided at both ends of the limiting rod.

[0006] The swing bridge is connected to the bottom of the robot platform via a central connecting seat.

[0007] The swing bridge is made of lightweight alloy material.

[0008] The wheel axle connection assembly is connected to the robot's front and rear wheel axles.

[0009] The angle linkage limiting assembly is connected to the robot platform.

[0010] The buffer and shock-absorbing component is a shock-absorbing rubber ring.

[0011] The shock absorber is made of highly elastic rubber.

[0012] The swing bridge is connected to the central connecting seat via a pin.

[0013] Compared with the prior art, this utility model connects the front and rear wheel axles of the robot, allowing the bridge to swing up and down within a certain range. When one wheel encounters an obstacle and lifts up, the other wheel can still keep close to the ground, avoiding the robot from becoming unbalanced and losing drive. At the same time, it ensures the stability of the central box bearing surface, improves the robot's obstacle-crossing ability and operational reliability, and takes into account the size and cost requirements of small and medium-sized platforms.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0016] Figure 1 This is a side view of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is an assembly drawing of this utility model.

[0017] In the diagram: 1-Swing bridge, 2-Pin shaft, 3-Angle linkage limit assembly, 4-Wheel axle connection assembly. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this utility model. The embodiments can be combined with and referenced by each other without contradiction.

[0019] Example 1 like Figures 1-3 The swing bridge mechanism shown is suitable for small and medium-sized robot platforms and consists of three main parts: swing bridge 1, wheel and axle connection assembly 4, and angle linkage limit assembly 3. Each component is connected and fixed by high-strength pins 2, anti-loosening bolts and nuts to ensure structural stability.

[0020] Specifically, the swing bridge 1 is made of lightweight alloy material and has an arc-shaped frame structure, allowing it to swing flexibly within a preset angle range. Specifically, the wheel axle connection assembly 4 is adapted to the front and rear wheel axles of the robot, and its built-in bearing structure can reduce frictional resistance during swinging.

[0021] Specifically, the angle limiting component 3 is installed at the connection between the swing bridge 1 and the robot platform. The maximum swing angle of the swing bridge 1 is limited by the limiting rod to avoid excessive swinging that could cause structural damage.

[0022] Specifically, the buffer and shock absorber is made of highly elastic rubber and is nested at the connection between the wheel axle connection assembly 4 and the swing bridge 1, which can mitigate the impact of terrain impact on the mechanism.

[0023] Furthermore, the swing bridge 1 is fixed to the bottom of the robot platform via the central connecting seat, and the wheel axle connecting assembly 4 is respectively fitted onto the wheel bridge assemblies on both sides of the robot to ensure that the swing bridge 1 and the wheel axle are synchronized.

[0024] Preferably, when the robot travels to rough terrain, after the wheels contact protruding rocks, the rocks exert an upward supporting force on the wheels. This force is transmitted through the wheels to the left wheel axle connection assembly 4, causing the swing bridge 1 to swing. At this time, the left limiting block of the angle limiting assembly 3 moves with the swing bridge 1, while the right limiting block remains in contact with the central connecting seat, preventing the swing bridge 1 from sinking excessively. Throughout the process, the wheels are always supported by the ground, maintaining contact with the ground and ensuring that the robot will not lose balance and driving force due to one wheel being suspended in the air, thus achieving smooth obstacle crossing. After the robot crosses the obstacle, the wheels disengage from the protruding rocks, and the swing bridge 1 returns to a horizontal state under its own weight and the supporting force of the right wheel. The angle limiting assembly 3 automatically resets, fixing the swing bridge 1 in a horizontal position, ensuring the stability of the robot when traveling on flat roads.

[0025] In summary, the beneficial effects of this utility model are as follows: 1. By combining the wheel axle connection component and the angle limiting component, the bridge body can swing freely within a preset range to adapt to the terrain, while avoiding structural damage caused by excessive swinging, thus adapting to the size and load-bearing requirements of small and medium-sized robot platforms. 2. When one wheel encounters an obstacle, the other wheel can be brought into contact with the ground by swinging the bridge body, solving the problems of instability and loss of drive on one side of the traditional fixed bridge robot, and significantly improving obstacle crossing ability.

[0026] Those skilled in the art will understand that the above embodiments can be modified in form and detail in practical applications without departing from the spirit and scope of this utility model.

Claims

1. A swing bridge mechanism suitable for small and medium-sized robot platforms, characterized in that: The device includes a swing bridge (1), with a wheel and axle connecting assemblies (4) at both ends of the swing bridge (1) and an angle connecting rod limiting assembly (3) on the swing bridge (1). A buffer and shock absorber is provided between the wheel and axle connecting assembly (4) and the swing bridge (1). The swing bridge (1) is an arc-shaped frame structure. The wheel and axle connecting assembly (4) includes a wheel and axle, and a bearing is provided inside the wheel and axle. The angle connecting rod limiting assembly (3) includes a limiting rod, and a limiting block is provided at both ends of the limiting rod.

2. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The swing bridge (1) is connected to the bottom of the robot platform via a central connecting seat.

3. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The swing bridge (1) is made of lightweight alloy material.

4. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The wheel axle connection assembly (4) is connected to the front and rear wheel axles of the robot.

5. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The angle linkage limiting component (3) is connected to the robot platform.

6. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The buffer and shock-absorbing component is a shock-absorbing rubber ring.

7. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The shock absorber is made of highly elastic rubber.

8. The swing bridge mechanism suitable for small and medium-sized robot platforms as described in claim 1, characterized in that: The swing bridge (1) is connected to the central connecting seat via a pin (2).

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