Triplex Greensmower Open Foot Platform for Center Reel Service
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Solution Overview
Problem
Triplex greensmowers face issues with leaving marks or step cuts on the turf, uneven load distribution, pendulum effect, and limited access to the center reel cutting unit for service and grass catcher replacement.
Innovation Solution
A triplex greensmower with an open foot platform and improved lift system, featuring slideable platform sections for enhanced access and a lift system with roll, yaw, and pitch axes to stabilize the cutting units, reducing turf impact and improving serviceability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the center reel cutting unit is positioned under the vehicle frame, then the triplex greensmower can achieve three or more cutting units for high quality cut, but access to the center reel cutting unit for service and grass catcher replacement is limited
Solution Approach 1:
The platform is divided into left and right sections that can be independently removed, creating an open foot platform configuration. This segmentation allows the center reel cutting unit to be accessed from the front by removing only the necessary platform section, rather than requiring complete platform disassembly or working from confined spaces underneath the vehicle frame.
2Stability of the object's composition
If the reel cutting units are lowered with front and rear rollers parallel to the ground, then the load can be distributed evenly, but the impact of each reel cutting unit when lowered increases
Solution Approach 1:
The lift system incorporates a roll axis that allows the reel cutting unit to rotate dynamically during the lowering process. This dynamic adjustment enables the unit to transition from a horizontal position (rollers parallel to ground for even load distribution) to an angled position (front roller lower than rear roller) just before ground contact, thereby reducing impact while maintaining even load distribution during the mowing operation.
3Adaptability or versatility
If the reel cutting units are mounted to lift arms, then the cutting units can be raised and lowered between mowing and transport positions, but the pendulum effect causes reel cutting units to swing
Solution Approach 1:
The lift system incorporates a yaw axis that acts as a counterbalancing mechanism to the roll axis. When the reel cutting unit swings or pendulates during operation, the yaw axis provides a stabilizing rotational degree of freedom that allows the unit to self-correct and return to its proper alignment, thereby reducing the pendulum effect while maintaining the ability to raise and lower the cutting units.
4Strength
If a traditional closed platform is used, then the structure is rigid and stable, but access to the center reel cutting unit for service is difficult
Solution Approach 1:
The platform is segmented into left and right sections that can be independently removed, creating an open foot platform configuration. This segmentation maintains the structural stability of each individual platform section while allowing easy access to the center reel cutting unit by removing only the necessary section, rather than requiring complete platform disassembly.
Data Source
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AI summary
A triplex greensmower open foot platform provides an opening in front of an operator seat providing visibility from the operator seat to a center reel cutting unit. The opening has sufficient dimensions for removal or installation of the center reel cutting unit or a grass catcher therethrough. A pair of platform sections provides a perimeter at least partially around the opening. Each of the platform sections including a footrest and a rearwardly extending coupling that is manually removable from the triplex greensmower.