Joint Mowing Blade With Buffer Support and Floating Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mowing machines with rotary blades face issues such as increased worker fatigue, blade breakage due to collision with stones, and inefficient mowing performance due to lack of floating force and vibration reduction.
Innovation Solution
A joint blade design featuring a rotating plate with integrated plate springs and buffer units, along with wing units for generating a floating force, which supports rotary blades to reduce vibration and noise, and includes a washer system to secure fastening bolts, minimizing blade separation and breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotary blade is used for mowing, then cutting efficiency is improved, but the blade is easily broken due to collision with stones
Solution Approach 1:
The patent applies beforehand cushioning by providing a buffer unit with elastic material that is pre-installed between the rotary blade and the cover plate. When the blade collides with stones during mowing, the elastic buffer unit absorbs the impact energy before it can transmit to the blade, preventing blade breakage while maintaining cutting efficiency
Solution Approach 2:
The buffer unit acts as an intermediary element between the rotary blade and the cover plate. This intermediate component with elastic properties mediates the force transmission during stone collisions, protecting the blade from direct impact forces that would cause breakage
2Power
If a heavy mowing machine is used, then cutting power is improved, but worker fatigue increases
Solution Approach 1:
The patent applies anti-weight principle by providing a floating force generation unit that produces an upward floating force to counteract the downward gravitational force of the heavy mowing machine. This reduces the effective weight perceived by the worker, decreasing fatigue while maintaining the machine's cutting power
3Strength
If the blade is fixed rigidly to the rotating plate, then structural strength is improved, but vibration and noise increase
Solution Approach 1:
The patent applies flexible shells and thin films principle by using an elastic buffer unit as a flexible element between the rigid rotary blade and the cover plate. This flexible component absorbs vibrations and reduces noise while maintaining the structural strength of the overall assembly
Solution Approach 2:
The buffer unit serves as an intermediary that decouples the rigid connection between the blade and cover plate, allowing relative movement and vibration absorption while maintaining structural integrity through the elastic connection
4Ease of operation
If the blade is made lightweight, then ease of operation is improved, but the blade may break more easily
Solution Approach 1:
The patent applies composite materials principle by combining lightweight blade material with the elastic buffer unit material. The blade itself remains lightweight for ease of operation, while the composite structure including the buffer unit provides enhanced impact resistance and prevents breakage during stone collisions
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 joint blade enhances worker efficiency by reducing fatigue and blade damage, while minimizing vibration and noise during operation, and preventing accidents through effective blade support and secure fastening.
Implementation Method 1
a plate spring provided on one side of the cover plate adjacent to the rotary blade; and a buffer unit integrally provided with the plate spring
Implementation Method 2
when the rotary blades, which are spread in the outward direction of the cover plate by the centrifugal force, collide against the foreign substance of the ground and are folded inwardly, the buffer units can alleviate impact generated when the rotary blades collide against the plate spring
Implementation Method 3
the cover plate includes a plurality of wing units formed on the side of the cover plate in a diagonal direction with respect to the circumference of the cover plate to induce a flow of air, thereby generating a floating force when the cover plate is rotated
Implementation Method 4
when the rotary blades, which are spread in the outward direction of the cover plate by the centrifugal force
Data Source
AI summary
A joint blade for mowing includes: a rotating plate connected to a rotating power shaft to rotate; a cover plate coupled to the top of the rotating plate to overlap and having an insertion hole formed at the center so that the power shaft is inserted into the insertion hole; and a plurality of rotary blades coupled at the edge of the cover plate at regular intervals to be rotatable. The cover plate includes: a plate spring provided on one side of the cover plate adjacent to the rotary blade; and a buffer unit integrally provided with the plate spring.