Cutting Tooth Splitter for Brush Cutter Debris Management

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Solution Overview

Problem

Brush cutting heads suffer from frequent damage and wear due to exposure to hard objects, leading to costly replacements and reduced cutting efficiency, with existing protective measures not fully addressing the issue of debris accumulation and misalignment during tooth replacement.

Innovation Solution

A splitter apparatus is mounted on the cutting tooth, allowing for a two-step cutting mechanism that cuts tangentially and radially, effectively removing debris and reducing wear by directing cut wood away from the cutting assembly, thus enhancing the self-cleaning capability and durability of the cutting teeth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If cutting teeth are exposed to directly strike rocks or large trees, then cutting efficiency is improved, but the cutting teeth are damaged or broken off

Engineering Contradiction:

Improvecutting efficiencyVSAvoidcutting tooth durability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

A splitter is mounted on the front face of the mounting block below the cutting tooth to absorb and distribute impact forces from rocks or large trees before they reach the cutting tooth, preventing damage while maintaining cutting exposure

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If protective collars are provided in front of mounting blocks, then the blocks are protected from direct impact, but the cutting teeth remain vulnerable to violent impact with hard objects

Engineering Contradiction:

Improvemounting block protectionVSAvoidcutting tooth vulnerability

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The protective structure is divided into two segments: the existing protective collar that shields the mounting block, and the added splitter that specifically protects the cutting tooth, allowing each component to address different vulnerability points

Inventive Principle:

Principle #1Segmentation

3Ease of repair

If cutting teeth are fixedly mounted on mounting blocks, then replacement is difficult and expensive, but frequent breakage occurs during operation

Engineering Contradiction:

Improvemounting block replacement difficultyVSAvoidcutting tooth service life

Core Design Contradiction:

Ease of repairVSReliability

Solution Approach 1:

The splitter provides beforehand protection by absorbing impact forces before they can cause tooth breakage, extending service life without affecting the fixed mounting system's stability

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS10646880B2Cutting tooth splitter apparatus and method

Publication Date: 2020.05.12 GYROTRAC CORP

AI summary

A splitter is provided for mounting on the leading face of a cutting assembly to be mounted on a brush cutter. In one embodiment, the splitter is preferably mounted below the cutting portion of the tooth such that as wood is cut, the cut wood is directed onto the splitter for further cutting. The tooth is mounted to cut tangentially with respect to the rotation of the cutter, while the splitter cuts radially and outwardly with respect to the rotation of the cutter. In this manner, a cutting mechanism is provided that is capable of cutting tangentially and radially simultaneously. The flow of cut wood is directed out of from the cutting assembly, thus facilitating the removal of the cutting debris away from the tooth holder and the cutting tooth, thereby cleaning the tooth of any debris and preventing wood and other debris from getting lodged within the cutting assembly.