Adjustable Power Rake Rotor Control for Uneven Terrain Reshaping
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Solution Overview
Problem
Existing power rakes face challenges in efficiently reshaping and resurfacing uneven terrain due to material type, spatial constraints, and operational obstacles, often requiring multiple devices or manual intervention, which increases time and labor.
Innovation Solution
A power rake with a variable controlled rotor assembly that is vertically and rotatably adjustable, allowing for multiple reshaping options, and equipped with a control system for efficient terrain adaptation, including swale creation, reducing the need for multiple devices and manual work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operator uses a single power rake device, then device complexity is reduced, but the ability to handle different terrain conditions and spatial constraints is limited
Solution Approach 1:
The power rake is designed with a rotor assembly that can perform multiple functions including grading, leveling, and creating swales or runoff areas. This multi-functionality allows a single device to handle various terrain conditions and spatial constraints that previously required multiple specialized devices, thereby improving adaptability without proportionally increasing complexity
Solution Approach 2:
The rotor assembly is made dynamically adjustable through hydraulic or electric actuators that enable real-time changes in rotor position, angle, and depth. This dynamic capability allows the device to adapt to different terrain conditions and operational requirements during use, enhancing versatility while maintaining a unified device structure
2Reliability
If the operator slows down the vehicle motion, then the power rake has more time to work hard or compacted material, but productivity decreases
Solution Approach 1:
The rotor assembly parameters such as rotation speed, impact force, and engagement depth are made variable through hydraulic or electric control systems. This allows the operator to increase rotor aggression and working intensity when encountering compacted or hard materials, maintaining effectiveness without requiring significant reduction in vehicle speed, thus preserving productivity
3Adaptability or versatility
If the operator uses multiple power rakes of different sizes, then the power rake can adapt to different work area sizes and obstacles, but device complexity and operational time increase
Solution Approach 1:
The power rake incorporates an adjustable rotor assembly that can modify its working width, depth, and configuration to suit different work area sizes and obstacle conditions. This eliminates the need to exchange between multiple devices of different sizes, as a single device can be reconfigured on-the-fly to match various operational requirements, saving time and reducing complexity
4Adaptability or versatility
If the operator needs to manually resurface the work area, then the power rake can handle extreme spatial constraints or obstacles, but labor and time requirements increase
Solution Approach 1:
The rotor assembly features dynamic positioning and adjustment capabilities through hydraulic or electric actuators, allowing it to navigate and adapt to tight spatial constraints and obstacles that previously required manual intervention. The automated adjustment mechanisms maintain ease of operation by eliminating the need for operator disengagement and manual work, while still achieving the adaptability needed for difficult access areas
Data Source
AI summary
A power rake for attachment with a vehicle. The power rake includes a main frame, an adjustment assembly that operably engages with the main frame and is independently moveable relative to the main frame, a rotor assembly that operably engages with the adjustment assembly and is independently moveable relative to the main frame by the adjustment assembly, and a depth measurement assembly mounted to the main frame and the adjustment assembly. The depth measurement assembly is configured to measure a height and a depth of a rotor of the rotor assembly relative to a bottom of the main frame. The depth measurement assembly may include a depth indicator plate mounted to a main frame of the power rake, and a selecting arm mounted to an adjustment assembly of the power rake and positioned adjacent to the depth indicator plate.