Modular Mower Axle and Deck Layout for Clean Edge Cutting
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Solution Overview
Problem
Existing outdoor power machines face challenges in properly matching deck and wheel size and location for optimal cutting performance.
Innovation Solution
The outdoor power machine features interchangeable axle and deck configurations, including a chassis with drive wheel assemblies, an electrical power pack, and a mowing deck assembly with laterally offset steer wheels to optimize cutting efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed deck and wheel configurations are used, then manufacturing and setup are simplified, but cutting performance cannot be optimized for different operating conditions
Solution Approach 1:
The machine is divided into modular segments including interchangeable axle assemblies with different wheel configurations and interchangeable deck assemblies with different blade arrangements. Each module can be independently selected and assembled to match specific cutting conditions, allowing optimization of cutting performance without requiring a completely different machine design.
Solution Approach 2:
The base machine platform is designed with universal mounting interfaces and standardized connection points that can accommodate multiple types of axle assemblies and deck assemblies. This universal design allows a single base unit to perform multiple cutting functions by simply swapping modules, thereby achieving versatility without proportionally increasing overall system complexity.
2Productivity
If laterally offset steer wheels are positioned within the non-cutting side of mowing blades, then cutting performance is optimized, but steering mechanism complexity increases
Solution Approach 1:
The steer wheels are positioned with a specific lateral offset relative to the machine centerline, placing them within the non-cutting side area of the mowing blades. This localized positioning optimization ensures that the steer wheels do not interfere with the cutting swath while maintaining stable steering control, thereby achieving optimal cutting efficiency without requiring complex positioning mechanisms.
3Adaptability or versatility
If interchangeable axle and deck configurations are implemented, then adaptability to different cutting conditions improves, but assembly time and operational complexity increase
Solution Approach 1:
The axle assemblies and deck assemblies are pre-configured with standardized mounting interfaces, alignment features, and quick-connect mechanisms during manufacturing. This preliminary preparation of modular components with pre-established connection protocols enables rapid assembly and interchange operations, significantly reducing the time penalty associated with configuration changes while maintaining high adaptability.
Data Source
AI summary
An outdoor power machine includes: a chassis; drive wheel assemblies mounted to the chassis, each drive wheel assembly coupled to an electric motor; an electrical power pack to supply electric energy to the electric motors; at least one steer wheel pivotally mounted to the chassis; a mowing deck assembly connected to the chassis; the mowing deck assembly including: a mowing deck; at least one mowing blade rotatably mounted to the mowing deck, the at least one mowing blade defining a cut swath with a cutting side and a non-cutting side; wherein the at least one steer wheel is spaced from an axial centerline of the outer power machine by a lateral offset distance, the lateral offset distance configured such that a lateral width of the at least one steer wheel is positioned within a lateral width of the non-cutting side of the at least one mowing blade.