Multi-Axis Reaction Arm for Tracked Tractor Axle Alignment
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Solution Overview
Problem
Tracked tractors experience positional misalignments between the drive wheel axle and the track roller frame, particularly when traversing uneven terrain, leading to unaccommodated load forces due to the lack of freedom of movement in the drive wheel axle.
Innovation Solution
A multi-axis reaction arm apparatus is introduced, comprising an arm portion attached to the track roller frame, a yoke with a pivotal connection, a bearing housing, a bearing assembly, and a collet affixed to the drive wheel axle, allowing for pivotal movements about two orthogonal axes to accommodate horizontal and vertical forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the drive wheel axle is rigidly connected to the track roller frame, then structural strength is improved, but the ability to accommodate positional misalignments deteriorates
Solution Approach 1:
The reaction arm assembly introduces dynamic capability to the connection between the drive wheel axle and track roller frame. The arm can pivot about a first axis (longitudinal axis of the drive wheel axle) and a second axis (transverse axis), allowing the connection to adapt to positional misalignments while maintaining structural integrity through controlled movement rather than rigid fixation.
Solution Approach 2:
The connection is segmented into multiple components: the reaction arm, yoke, bearing housing, and bearing assembly. This segmentation allows each component to perform a specific function - the reaction arm absorbs misalignment forces, the bearings facilitate pivoting motion, and the yoke connects the components - while collectively providing both strength and adaptability.
2Stability of the object's composition
If the drive wheel axle has no freedom of movement, then mechanical stability is improved, but the ability to absorb load forces from terrain variations deteriorates
Solution Approach 1:
The reaction arm assembly provides controlled dynamic movement through two pivoting axes while maintaining overall mechanical stability. The first pivot axis allows the reaction arm to accommodate longitudinal misalignments, and the second pivot axis allows the bearing housing to adjust to lateral misalignments, enabling the system to absorb terrain-induced load forces without compromising stability.
Solution Approach 2:
The reaction arm acts as an intermediary component between the rigid drive wheel axle and the track roller frame. It mediates the forces transmitted between these components, absorbing misalignment forces and allowing controlled movement while maintaining the structural connection, thus protecting the rigid components from excessive stresses.
3Adaptability or versatility
If a multi-axis reaction arm apparatus is introduced, then the ability to accommodate misalignments is improved, but device complexity increases
Solution Approach 1:
The complex functionality of accommodating multi-axis misalignments is achieved by segmenting the system into distinct components: the reaction arm for longitudinal adjustment, the yoke for connection, the bearing housing for lateral adjustment, and the bearing assembly for facilitating pivoting. Each segment performs a specific adjustment function, making the overall complex system manageable and maintainable.
Solution Approach 2:
The reaction arm assembly serves multiple functions within a single integrated structure: it provides structural support, enables pivoting motion about two axes, absorbs misalignment forces, and maintains the connection between the drive wheel axle and track roller frame. This multi-functionality reduces the need for separate components for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multi-axis reaction arm effectively absorbs and opposes load forces caused by misalignments, enabling the track roller frame to twist and shift while maintaining proper engagement with the drive wheel axle, thereby improving traction and stability on uneven terrain.
Implementation Method 1
a bearing housing comprising a pivotal connection to the yoke about a second pivot axis
Implementation Method 2
a yoke comprising a pivotal connection to the arm portion about a first pivot axis
Data Source
AI summary
An apparatus is disclosed for connecting a drive wheel axle and a track roller frame in a tracked vehicle. The apparatus includes an arm portion for attachment to the track roller frame; a yoke comprising a pivotal connection to the arm portion about a first pivot axis; a bearing housing comprising a pivotal connection to the yoke about a second pivot axis; a bearing assembly disposed adjacent the bearing housing; and a collet separated from the bearing housing by the bearing assembly, wherein the collet is configured for affixation to the drive wheel axle. A method is disclosed for accommodating forces in a vehicle on a drive wheel axle transmitted through a track roller frame, the method including providing an apparatus connecting the drive wheel axle and the track roller frame. The method further includes pivoting portions of the apparatus relative to each other about first and second pivot axes.