Split-End Gauge Wheel Arm for Infinite Lateral Adjustment
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Solution Overview
Problem
Existing gauge wheel adjustment systems in row planters are cumbersome, prone to misalignment due to wear, and lack infinite adjustability, leading to poor planting performance and plugging issues in high residue conditions.
Innovation Solution
A split-end mounting arm with a threaded bore and a greaseless, threaded bushing assembly that allows for quick and infinite lateral adjustment of the gauge wheel using a bolt and nut system, eliminating the need for shim washers, jam nuts, and set screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If shim washers are used for lateral adjustment, then the gauge wheel can be adjusted laterally, but the adjustment process becomes tedious and time-consuming requiring removal and re-installation of components
Solution Approach 1:
The arm is divided into a first portion and a second portion that can be independently positioned relative to each other. The first portion includes a clamp that can be opened and closed to release or secure the second portion, allowing the gauge wheel to be adjusted laterally without removing components from the row unit.
Solution Approach 2:
The clamp mechanism transitions from a static fixed connection to a dynamic adjustable connection. The clamp can be opened to allow lateral movement of the second portion relative to the first, then closed to secure the adjusted position, enabling quick adjustment without disassembly.
2Adaptability or versatility
If traditional adjustment systems are used, then lateral adjustment is possible, but the system lacks infinite adjustability and has limited range of motion
Solution Approach 1:
The dynamic clamp mechanism allows continuous lateral adjustment of the second portion relative to the first portion along the length of the arm. This provides infinite adjustability within the available space, eliminating the limited range of fixed-step adjustment systems.
3Reliability
If bushings are used for rotation, then the gauge wheel can pivot, but wear causes misalignment and the gauge wheel moves away from disc openers
Solution Approach 1:
The worn bushing component is removed from the critical positioning function. Instead of relying on bushings that wear and cause misalignment, the invention uses a direct clamp connection between the first and second portions of the arm that maintains precise lateral positioning without intermediate rotating elements.
Solution Approach 2:
The traditional bushing-based rotational mechanism is replaced with a clamp-based rigid connection. The clamp secures the second portion to the first portion, eliminating the wear-prone bushing interface while maintaining the necessary pivot function through the clamp's own rotation capability.
4Productivity
If gauge wheels are kept close to disc openers to prevent plugging, then planting performance improves, but wear from operating in soil increases
Solution Approach 1:
The dynamic clamp mechanism allows the operator to precisely position the gauge wheel at the optimal distance from the disc opener. The clamp can be adjusted to maintain the closest possible spacing to prevent plugging, while the robust clamping connection compensates for increased wear forces through its rigid securement of the arm portions.
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
Enables precise and effortless lateral adjustment of gauge wheels, maintaining optimal planting depth and preventing plugging, with reduced wear and increased operational efficiency in no-till or reduced tillage conditions.
Implementation Method 1
A transverse threaded bore extends through the first end of the arm, with a threaded bushing extending into the bore
Implementation Method 2
The first end is split so as to define clamp tips, each of which have a hole through which a bolt extends so that the clamp tips can be tightened and loosened
Data Source
AI summary
A mounting assembly for a gauge wheel on a row unit allows for infinite lateral adjustment of the gauge relative to an opening disc on the row unit. The mounting assembly includes an arm with a threaded bore extending through a split end of the arm. A threaded bushing is adjustably mounted in the bore and secured in a desired position with a bolt standing through the split end to clamp bushing in position. The split end mounting arm provides a method of quickly and easily adjusting the lateral position of the gauge wheel on the row unit in infinite increments.