Bent Auger Flight Reinforcement for Stiffness and Smoothness
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Solution Overview
Problem
Agricultural auger flights often deform under the stress of heavy crop material, leading to inadequate material transport and wrapping around reinforcements, with existing reinforcement methods providing insufficient stiffness and smoothness.
Innovation Solution
The auger flight is reinforced with a device that extends longitudinally along the shaft, featuring a high angle of approximately 40° with the shaft, providing continuous support and a smooth shape to prevent deformation and material wrapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional reinforcements (spaced triangular plates) are used to strengthen the auger flight, then the flight strength is improved, but the flight bends between reinforcements and crop material wraps around the reinforcements
Solution Approach 1:
The reinforcement device is divided into multiple discrete segments spaced along the auger flight. Each segment provides localized reinforcement while the spacing allows flexibility and prevents material wrapping. The segments are positioned to provide structural support where needed without creating continuous obstruction that would cause material to wrap around.
Solution Approach 2:
The reinforcement device transitions from a two-dimensional plate structure to a three-dimensional structure that extends in the longitudinal direction of the auger shaft. This adds a new dimension of support that prevents bending between reinforcement points while maintaining smoothness through proper geometric design of the segments.
2Stability of the object's composition
If reinforcement angle is increased to 40° with the shaft, then the flight stiffness is significantly improved, but the complexity of the reinforcement device increases
Solution Approach 1:
The reinforcement device uses a specific angle parameter of approximately 40° relative to the auger shaft, which optimizes the balance between providing sufficient stiffness to prevent flight deformation and maintaining a geometric configuration that is manufacturable and installable. This parameter change from conventional smaller angles achieves the desired stiffness improvement.
Solution Approach 2:
The reinforcement device combines multiple geometric features (angled segments, longitudinal extension, curved surfaces) into a composite structural form that achieves high stiffness through the integrated design rather than requiring excessive material or complex assembly procedures. The composite geometry provides structural efficiency.
3Reliability
If the reinforcement device extends longitudinally along the shaft, then continuous support is provided preventing deformation, but the manufacturing complexity increases
Solution Approach 1:
The longitudinal reinforcement device is segmented into multiple sections that can be manufactured separately and then assembled along the auger shaft. This segmentation makes the manufacturing process more manageable while still providing continuous support when installed, as the segments are positioned to overlap or connect in a way that eliminates gaps.
Solution Approach 2:
The reinforcement device incorporates curved surfaces and rounded edges in its geometric design, which not only provides continuous smooth support to prevent material wrapping but also facilitates manufacturing through conventional forming processes. The curved geometry is more amenable to fabrication than sharp angles or complex irregular shapes.
Data Source
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AI summary
An agricultural machine system (135, 235) includes: an agricultural work vehicle (100, 200); an agricultural machine (101, 201) coupled with the agricultural work vehicle (100, 200), including: an auger device (108, 208) including: a shaft (109, 209); at least one flight (110, 210) connected to the shaft (109, 209); and a reinforcement device (113, 213) connected to the shaft (109, 209) and the at least one flight (110, 210), the reinforcement device (113, 213) being configured for reinforcing the at least one flight (110, 210) and including at least one bend (334A, 334B) such that the reinforcement device (113, 213) at least partially extends in a longitudinal direction (335) of the shaft (109, 209).