Articulating Windguard for Agricultural Baler Crop Flow Control
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Solution Overview
Problem
Existing windguards for hay balers struggle to accommodate varying crop flows efficiently, leading to issues such as crop accumulation and reduced throughput, especially when dealing with light or bulky materials and uneven terrain.
Innovation Solution
A windguard with articulating features, including L-shaped support arms and a transversely extending crop hold-down device with a pivoting panel, allows for independent movement to accommodate uneven crop flows and heavy inflows, combined with a system of stub augers that consolidate and direct crop materials effectively into the baler.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed windguard is used, then the structure is simple and stable, but it cannot accommodate varying crop flows efficiently leading to crop accumulation and reduced throughput
Solution Approach 1:
The windguard is transformed from a fixed structure to a dynamic one by introducing articulating support arms that allow the windguard to pivot and adjust its position. This enables the windguard to adapt to varying crop flows and terrain conditions, preventing crop accumulation and maintaining throughput without requiring complex active control systems.
Solution Approach 2:
The windguard structure is divided into multiple segments including support arms, cross members, and panels that can move independently. This segmentation allows different parts of the windguard to respond to local crop flow conditions, improving overall effectiveness while keeping each individual component relatively simple.
2Adaptability or versatility
If a rigid windguard structure is used, then manufacturing is simple, but it cannot accommodate uneven terrain and heavy crop inflows
Solution Approach 1:
The windguard incorporates articulating support arms with pivot points that allow the structure to dynamically adjust to uneven terrain and heavy crop inflows. This dynamic capability provides adaptability without requiring complex active control systems, maintaining ease of manufacture through passive mechanical adaptation.
Solution Approach 2:
The windguard structure changes its geometric parameters (position, angle) in response to varying crop flow conditions and terrain. The articulating arms allow the windguard to alter its configuration passively, adapting to different operating conditions without requiring complex control mechanisms.
3Reliability
If the windguard is fixed in position, then the structure is stable, but crop materials can accumulate underneath leading to plugging
Solution Approach 1:
The articulating support arms allow the windguard to dynamically adjust its position in response to crop accumulation. When materials build up underneath, the weight causes the arms to pivot, raising the windguard to relieve the accumulation and prevent plugging, maintaining continuous material flow through passive mechanical response.
Solution Approach 2:
The articulating mechanism provides passive feedback control where the weight of accumulated crop materials directly causes the support arms to pivot and adjust the windguard position. This automatic feedback mechanism prevents plugging by relieving accumulation without requiring sensors or active control systems.
Data Source
AI summary
A windguard is adapted to be attached to the frame of a crop pickup in overlying relationship to the pickup tine rotor so as to control the incoming flow of crop materials. A transversely extending crop hold down portion of the windguard is pivotally supported between the front ends of a pair of fore-and-aft extending support arms that are pivotally attached at their rear ends to the frame of the pickup so that the windguard can articulate as it is moved up and down relative to the pickup by engagement with inflowing crop material.