Tillage Chassis with Movable Wheels and Rear Section
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Solution Overview
Problem
Wide-width seed drills face challenges in compacting their width for transport due to the collision risk of main carrying wheels with side wings, necessitating an improvement in design to optimize transport position compactness without interfering with working position functionality.
Innovation Solution
A chassis design with movable main carrying wheels and a central rear section that adjust between lowered and raised positions, allowing the side wings to fold closer to the boom in transport while maintaining ground contact, preventing wheel collisions and optimizing compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the side wings are folded horizontally along the boom in transport position, then the width of the seed drill is reduced to comply with road regulations, but the main support wheels collide with the side wings or components attached to them
Solution Approach 1:
The invention makes the main support wheels movable relative to the chassis body, allowing them to shift position dynamically. In transport configuration, the wheels move toward the rear of the chassis to clear the path of folding side wings, eliminating collision while enabling compact width reduction to comply with road regulations.
Solution Approach 2:
The chassis is divided into movable and fixed components, with the main support wheels being movable relative to the chassis body. This segmentation allows the wheels to independently reposition themselves during configuration changes, resolving the spatial conflict between wheel placement and side wing folding paths.
2Length of moving object
If the main support wheels are positioned to avoid colliding with side wings in transport position, then the width is reduced for road compliance, but the working height and stability may be compromised
Solution Approach 1:
The main support wheels are designed to be movable relative to the chassis body, enabling them to occupy different positions based on operational requirements. In working configuration, the wheels return to their traditional position under the chassis body to maintain proper working height and stability, while in transport configuration, they shift rearward to enable compact folding without collision.
Data Source
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AI summary
The present invention relates to a tillage tool chassis (1) (27) resting on main support wheels (12) in constant contact with the ground (S), and comprising a central boom (10), a chassis body (10') fixed to one end of said boom (10), a central rear section (13) extending perpendicularly to the longitudinal axis of said central boom (10), and extending from the rear end of said chassis body (10') towards the rear of said chassis (1) in the longitudinal axis of said boom (10), and being mounted movable relative to said chassis body (10') between at least: - a rearward position in which said central rear section (13) is away from the rear end of said chassis body (10'), and - a forward position in which said central rear section (13) is closer to the rear end of said chassis body (10'), two lateral rear sections (11) fixed to said chassis body (10'),being mounted movable relative to said chassis body (10') between at least: - a transport position in which said rear lateral sections (11) are folded essentially along said drawbar (10), and - a working position in which said rear lateral sections (11) are moved away from said drawbar (10) and extend on either side of said central rear section (13) essentially in line with it, said main load-bearing wheels (12), while remaining in contact with the ground (S), are movable relative to said chassis body (10') between at least: - a lowered position in which the distance between said chassis body (10') and the ground (S) is reduced, the chassis thus being in the working position, and - a raised position in which the distance between said chassis body (10') and the ground (S) is increased, the chassis thus being in a maneuvering or transport position.