Laser Grass Cutter Machine Mechanics Substitution
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Solution Overview
Problem
Traditional grass cutting and shredding methods using brushcutters with blades or chains are environmentally polluting, pose safety hazards due to ejected debris, and can compact soil, affecting irrigation and nutrient absorption in orchards.
Innovation Solution
A laser grass cutter machine with height-adjustable swivel wheels, equipped with optical fiber laser emitters that cut and shred grass without physical contact, reducing noise pollution and safety hazards, and allowing for precise control over cutting dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional brushcutters with blades or chains are used to cut and shred grass, then the grass cutting function is achieved, but environmental pollution (noise) and safety hazards (ejected debris) occur
Solution Approach 1:
The patent replaces the mechanical blade or chain cutting system with a laser-based cutting system. The laser emitter directs a focused beam to cut and shred grass without physical contact, eliminating noise pollution and the ejection of debris that occurs with mechanical systems. This substitution of mechanical energy with optical energy (laser) directly resolves the harmful factors while maintaining the grass cutting function.
2Object-affected harmful factors
If chain choppers are attached to tractor power take-offs for grass cutting, then the cutting function is achieved, but soil compaction occurs affecting irrigation and nutrient absorption
Solution Approach 1:
The patent replaces heavy mechanical chain choppers with a laser cutting system that requires no physical contact with the ground or soil. The laser beam cuts grass through optical energy concentration without the weight and mechanical force that cause soil compaction. This eliminates the harmful effect on soil structure while maintaining effective grass cutting capability.
3Reliability
If robust mechanical cutters are used to withstand high mechanical stress, then the cutting function is reliable, but the machine becomes heavy and difficult to transport
Solution Approach 1:
The patent replaces heavy mechanical cutting components with a lightweight laser emitter system. The laser head contains optical components that generate and direct a high-energy beam, eliminating the need for heavy-duty mechanical structures designed to withstand impact loads. This significantly reduces machine weight while maintaining reliable grass cutting performance through optical energy concentration.
4Object-affected harmful factors
If blades are used to cut grass, then the cutting function is achieved, but stones and wood pieces are ejected at high speed creating safety hazards
Solution Approach 1:
The patent replaces mechanical blades that physically contact and chop grass (ejecting debris) with a laser beam that vaporizes and cuts material through concentrated optical energy. The laser process melts and expels material in a controlled manner without the high-speed projectile ejection characteristic of blade systems, eliminating the safety hazard to operators and bystanders.
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 laser grass cutter machine efficiently cuts and shreds grass with minimal environmental impact, reduces safety risks by directing laser beams towards the ground, and improves soil health by avoiding soil compaction.
Implementation Method 1
one or more laser emitters are housed, responsible for cutting and shredding the grass
Implementation Method 2
the lasers always directed towards the ground... the laser develops its full cutting power
Data Source
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AI summary
The present application relates to an agricultural machine for grass cutting and shredding using laser technology, wherein the implement comprises a casing and a plurality of laser emitters (12) that are arranged side by side for emitting a laser beam (19) to cut grass stalks. Fore of the emitters in a working direction a resilient flange (17) is arranged to bend the grass stalks appropriately. The application provides a silent, efficient, and pollution-free operation that makes it an attractive option for the agricultural and recreational industries, including grass cleaning on highway medians, road and path embankments, and even grass growing between the tiles on some sidewalks.