Adjustable Compression Rollers in Balers for High-Density Bale Formation
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Solution Overview
Problem
Current balers rely on belt tension to regulate bale density, which decreases the durability of belts and rolls, making it impractical to increase bale density further, and there is a need for improved methods to form high-density bales.
Innovation Solution
A baler with a compression assembly featuring adjustable compression rollers and a rotary feeder that pre-compresses crop material, allowing for synchronized pressure generation and crop material cutting, and a controller to optimize the process for different harvesting conditions and crop materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If belt tension is increased to increase bale density, then bale density is improved, but durability of belt and rolls deteriorates
Solution Approach 1:
The patent applies preliminary compression action by positioning compression rollers upstream in the baling process to pre-compress crop material before it enters the main baling chamber. This preliminary action reduces the need for excessive belt tension during the main compression phase, thereby protecting belts and rolls from excessive stress while still achieving high bale density.
Solution Approach 2:
The patent segments the compression process into multiple stages: initial compression by the compression rollers and subsequent compression by the belt system. This segmentation distributes the compression workload, allowing the belt system to operate at lower tensions while achieving the same overall compression effect, thus improving both bale density and component durability.
2Quantity of substance
If compression pressure is increased to form high density bales, then bale density is improved, but structural integrity of crop stems deteriorates
Solution Approach 1:
The compression rollers perform preliminary compression that begins breaking down stem structure before the material enters the main baling chamber. This preliminary action reduces stem resistance to subsequent compression, allowing the belt system to achieve high density bales with lower overall pressure, thereby balancing density improvement with acceptable stem integrity.
Solution Approach 2:
The patent changes the physical state of crop material by using compression rollers to alter stem structure and reduce rigidity before main compression. This parameter change in the crop material's mechanical properties facilitates easier compression to high density while requiring less extreme pressure that would completely destroy stem integrity.
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 solution effectively increases bale density by pre-compressing crop material, reducing the structural integrity of individual stems, which leads to more efficient bale formation with lower equipment requirements and improved handling of crop materials, potentially increasing bale density by up to 200% compared to conventional methods.
Implementation Method 1
at least one compression roller configured to generate a pressure on crop material passed between the at least one compression roller and at least one baler compression component
Data Source
AI summary
An improved baler and a method of using the improved baler to produce high density bales based on arrangement and control of compression rollers. The baler comprises a pick-up assembly configured to pick-up crop material; a rotary feeder; a compression assembly comprising at least one compression roller configured to generate a pressure on the crop material as it passes between the compression roller and another compression component in the baler; and a bale chamber, wherein the pre-compressed crop forms a bale. The compression roller and compression component define an adjustable gap therebetween. The one or more compression rollers and/or baler compression components may be located in various locations in the baler. By adjusting the gap, pressure exerted on the crop material as it passes between the compression rollers and baler compression components may be controlled, resulting in bales of higher density.