Electric Mower Modules with Vertical Displacement
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Solution Overview
Problem
Existing electric-powered mowers lack individual adjustment of parameters such as working position, speed, and cutting height for each cutting element, leading to inefficiencies in grass cutting, especially on uneven terrain and varying crop densities.
Innovation Solution
An electric powered mower unit with vertically displaceable cutting modules, each equipped with an electric motor and a cutting height control system that can adjust based on ground sensing or satellite positioning, allowing synchronized rotation and adjustable frame sections for enhanced cutting efficiency and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanical power transmission is used to power multiple cutting elements, then power supply is ensured, but individual adjustment of working position, speed, and cutting height for each cutting element becomes impossible
Solution Approach 1:
The mower divides the cutting system into independent cutting modules, each with its own electric motor. This segmentation allows each module to be independently controlled for cutting height, speed, and working position, resolving the contradiction by enabling individual adjustment without requiring complex mechanical power transmission linkages to each cutting element
Solution Approach 2:
The patent replaces the traditional mechanical power transmission system with electric motors powered by an electric power unit. This substitution eliminates the need for complex mechanical linkages while enabling independent control of each cutting module, thus improving adaptability without proportionally increasing mechanical complexity
2Manufacturing precision
If a common depth control system is used for all cutting elements, then system simplicity is maintained, but cutting precision on uneven terrain deteriorates
Solution Approach 1:
The control system is segmented to provide individual cutting height control for each cutting module. Each module can be independently adjusted via its own actuator, allowing precise cutting height control on uneven terrain while maintaining reasonable system complexity through modular architecture
Solution Approach 2:
The cutting modules are made dynamically adjustable with individual actuators that can change cutting height in real-time. This dynamic control capability allows the system to adapt to uneven terrain, improving cutting precision without requiring an overly complex static control structure
3Adaptability or versatility
If cutting modules are fixed in position, then structural simplicity is maintained, but adaptability to varying crop densities and terrain conditions deteriorates
Solution Approach 1:
Cutting modules are suspended on vertical guides with actuators that enable dynamic vertical displacement. This dynamic positioning capability allows each module to adapt to varying crop densities and terrain conditions independently, improving overall system adaptability while maintaining structural simplicity through the use of guide rails and modular actuators
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables precise cutting height control and synchronized motor operation, improving cutting efficiency and adaptability to terrain and crop conditions, while allowing for adjustable working width and autonomous operation with automatic charging.
Implementation Method 1
Each cutting module is provided with an electric powered motor
Implementation Method 2
The cutting height control system may be hydraulically or electrically powered
Data Source
AI summary
Electric powered mower unit (1) comprising a frame (13) provided with connecting points (132) arranged for attaching the mower unit (1) to a tool-carrier (3) provided with an electric power unit (31), several cutting modules (11), each cutting module (11) being suspended vertically displacea-ble and non-rotatable in a cutting module guide (122) provided in the frame (13), charac-5 tensed in that each cutting module (11) comprises a cutting disc (111) and an elec-tric motor (112) powered by the electrical power unit (31), said cutting disc (111) being attached to a motor driving shaft (1121), and a actuator (121) forming a link between the cutting module (11) and the frame (13).