Lawn mowers (also known as grass trimmers or weed machines) are a type of garden machinery used for trimming lawns, pastures, or vegetation.
Basic Structural Components
Blade Disk: The core component for mounting blades and transmitting power.
Engine/Motor: Provides power, common types include gasoline engines, diesel engines, and AC/DC electric motors.
Wheels and Walking Mechanism: Support the machine and enable movement; some models have self-propelling functions.
Blades: Perform the actual cutting; types include rotary blades and reciprocating blades.
Handle and Control Section: For the operator to hold and adjust height, speed, start/stop, etc.
Protective Cover: Ensures safety and prevents debris from flying.
Main Working Methods
Rotary Type: High-speed rotating blades (linear speed 60–90 m/s) cut grass by impact, suitable for high-yield pastures, but the cut finish is less uniform.
Reciprocating Type: Uses a crank-link mechanism to drive the moving blade to shear against the stationary blade, providing neat cuts and low power consumption, but prone to clogging, suitable for flat natural grasslands.
Roller Blade Type: Similar to hair clippers, mainly used in places like golf courses where lawn quality requirements are high.
Handheld/Side-Mounted Type: Suitable for corners, steep slopes, and other complex terrains, often equipped with nylon strings or metal blades.
