Bogie Axle with Pivoting Front and Rear Tires for Obstacle Traversal
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Solution Overview
Problem
Agricultural machines with single axle tires face difficulties in navigating obstacles such as holes, ruts, and mounds, leading to potential damage and reduced efficiency due to their inability to effectively roll over or through these obstacles.
Innovation Solution
The implementation of a bogie axle configuration, which includes a body with a front axle and a rear axle, each mounting a tire of potentially different sizes, providing improved stability and the ability to pivot, allowing at least one tire to remain in contact with the ground when traversing obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single axle tire configuration is used, then the structure is simple, but the machine cannot effectively travel over obstacles
Solution Approach 1:
The single axle is segmented into a bogie assembly with front and rear axles. This segmentation allows the front tire to navigate obstacles while the rear tire maintains ground contact, resolving the contradiction between structural simplicity and obstacle traversal capability.
2Device complexity
If a single axle tire is used, then the structure is simple, but the machine may be damaged when passing over obstacles
Solution Approach 1:
By dividing the single axle into front and rear axles within a bogie assembly, the system distributes obstacle impact forces across multiple contact points, reducing stress on individual components and improving overall reliability.
3Ease of operation
If a bogie axle configuration is implemented, then the ability to travel over obstacles is improved, but the device complexity increases
Solution Approach 1:
The bogie assembly merges the front and rear axles into a single integrated unit that pivots as one entity. This merging maintains operational simplicity while providing the obstacle traversal benefits of multiple tires.
Solution Approach 2:
The bogie assembly serves multiple functions: it provides obstacle traversal capability, maintains ground contact through dual tires, and offers pivotability for directional changes. This multi-functionality justifies the increased complexity by delivering multiple performance benefits simultaneously.
4Stability of the object's composition
If a bogie axle configuration is implemented, then stability is improved, but the device complexity increases
Solution Approach 1:
The bogie assembly adds a rotational degree of freedom by allowing the entire assembly to pivot on the main axle. This dimensional change provides stability through adjustable orientation while maintaining a relatively simple mechanical connection.
Data Source
AI summary
An agricultural machine is disclosed. The agricultural machine includes a frame including a first axle on a first side of the frame and a second axle on a second side of the frame; and a bogie axle pivotably mounted on each of the first and second axles of the frame. Each bogie axle includes a body with a front axle disposed at a front end of the body and a rear axle disposed at a rear end of the body. A front tire is mounted on the front axle of each bogie axle and a rear tire is mounted on the rear axle of each bogie axle. The front tire is a different size than the rear tire.