Swather Arm Shock Absorption and Locking Mechanism
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Solution Overview
Problem
Existing swathers with long arms face issues of stress and potential fractures due to rough field surfaces and the need to work wider areas in reduced time, compromising safety and operational effectiveness.
Innovation Solution
The implementation of a swather with a locking mechanism and shock-absorbing devices to stabilize the arms, allowing for longer arm lengths without loosening, and a novel wheel rake design to enhance safety and efficiency during operation and transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the arm length is increased to work wider areas in reduced time, then productivity is improved, but the arms become subject to excessive stress and may develop cracks and fractures
Solution Approach 1:
The arm is divided into multiple modular sections that can be articulated relative to each other. This segmentation allows the arm to maintain longer overall length for wider working coverage while distributing mechanical stresses across multiple joints and sections, preventing excessive stress concentration that would lead to cracks and fractures in solid long arms.
Solution Approach 2:
The arm incorporates articulated joints that allow dynamic adjustment of arm configuration. This enables the arm to adapt its shape and stress distribution based on operating conditions, allowing it to work wider areas effectively while maintaining structural integrity by distributing loads through multiple articulation points rather than rigid fixed-length arms.
2Productivity
If the arm length is increased to cover wider areas, then productivity is improved, but the arms become heavy and complex to move
Solution Approach 1:
The arm is divided into multiple modular sections that can be articulated relative to each other. This segmentation allows the arm to maintain longer overall length for wider working coverage while distributing mechanical stresses across multiple joints and sections, preventing excessive stress concentration that would lead to cracks and fractures in solid long arms.
Solution Approach 2:
The arm incorporates articulated joints that allow dynamic adjustment of arm configuration. This enables the arm to adapt its shape and stress distribution based on operating conditions, allowing it to work wider areas effectively while maintaining structural integrity by distributing loads through multiple articulation points rather than rigid fixed-length arms.
3Productivity
If the arm length is increased to work wider areas, then productivity is improved, but the arms are subjected to excessive stress on rough surfaces leading to potential fractures
Solution Approach 1:
The arm is divided into multiple modular sections that can be articulated relative to each other. This segmentation allows the arm to maintain longer overall length for wider working coverage while distributing mechanical stresses across multiple joints and sections, preventing excessive stress concentration that would lead to cracks and fractures in solid long arms.
Solution Approach 2:
The articulated joint design inherently provides stress distribution and load buffering before excessive forces can develop. The joints act as shock-absorbing elements that distribute impact forces from rough surfaces across multiple connection points, preventing the concentration of stress that would lead to cracks and fractures in rigid long arms.
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
A swather including a horizontal bar (1), having at a first end (R) a device for connection to a towing vehicle and at the opposite end a generally horizontal bar (2), transverse to the first one, each end of which is associated with a generally vertical member (3, 4) bearing a wheel (7), preferably a pivoting wheel equipped with a tyre, said assembly of the transverse bar and the vertical members being associated with generally horizontal long arms (10), directed towards said first end of the first horizontal bar and pivotally connected to the transverse bar or the vertical members, so that the arms, when extended to a working position, can make the assembly take a V-shaped or Y-shaped configuration. Each said arm is equipped with a pivoting wheel with tyre (6) at its end remote from said transverse bar, or distal end, and also with a plurality of wheel rakes (5). At least the pivoting wheels with tyres (6) located at or near the distal ends of said arms (10) are equipped with shock absorbing means, capable of attenuating the impulsive loads due to the impact of the wheels themselves against irregularities of the ground. The swather is also equipped with a device for the automatic locking and unlocking of the arms with rake wheels.