Adjustable Axle Shim Layout for Precise Track-Width Control
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Solution Overview
Problem
Agricultural machines require adjustable track-width systems to accommodate different row crop applications, but existing solutions are inadequate in flexibility and efficiency.
Innovation Solution
An adjustable track-width system with movable axle members and adjustable shims that allow for varying track-width adjustments, using hydraulic cylinders and shims to minimize clearance and reduce vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing track-width adjustment solutions are used, then basic adjustability is provided, but flexibility and efficiency are inadequate
Solution Approach 1:
The system employs movable axle members that can be dynamically repositioned between fixed and adjustable positions, allowing the track width to be changed on-the-fly during operation. The shims enable continuous adjustment of the axle member positions, providing dynamic adaptability rather than fixed preset positions.
Solution Approach 2:
The track-width adjustment system is divided into modular components: fixed axle members, adjustable axle members, and interchangeable shims. This segmentation allows independent adjustment of each component to achieve precise track-width configurations without redesigning the entire system.
2Adaptability or versatility
If adjustable axle members are implemented, then track-width flexibility is improved, but device complexity increases
Solution Approach 1:
The axle members are designed with movable sections that can be dynamically repositioned along the axle length. The shims enable these sections to be locked at various positions, providing continuous adjustability without requiring complex mechanical linkages or multiple discrete components.
Solution Approach 2:
Shims serve as intermediary elements between the fixed and adjustable axle members. These thin plates facilitate precise positioning and locking of the movable axle sections without requiring direct mechanical engagement between complex components, thereby simplifying the overall system.
3Object-generated harmful factors
If clearance between axle members is reduced, then vibrations are minimized, but manufacturing precision requirements increase
Solution Approach 1:
The shims are designed to be self-adjusting components that automatically compensate for manufacturing tolerances and wear. As the axle members move and settle during operation, the shims maintain optimal clearance through their adjustable thickness and positioning capabilities, eliminating the need for extremely tight manufacturing tolerances.
Solution Approach 2:
The system allows dynamic change of the clearance parameter between axle members by inserting shims of different thicknesses. This enables the clearance to be optimized for different operating conditions and crop types, reducing vibrations without requiring fixed, ultra-precise manufacturing dimensions.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An adjustable track-width system comprising: a first axle member (244) having a first section (260) and a second section (262); a second axle member (242) having a third section (254) and a fourth section (255), the second axle member receivable by the first axle member and movable between a first position and a second position relative to the first axle member; and two or more shims (210A, 210B, 270A, 270B), that determine a clearance between the first axle member and the second axle member at the first and second positions, the two or more shims including, a first shim, at least a portion of the first shim arranged between the first section and the third section, and a second shim, at least a portion of the second shim being arranged between the second section and the fourth section.