Replaceable Tooth Mount Rotor for Waste Fragmenters

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing waste fragmenting machines face challenges with wear on rotor teeth and tooth mounts, leading to reduced efficiency, increased maintenance costs, and potential rotor imbalance due to labor-intensive and costly replacement processes, as well as stress on attachment mechanisms during fragmentation.

Innovation Solution

A system featuring spaced cutouts on the cylindrical drum with holders and mounts that allow for easy replacement of rotor teeth, minimizing stress on attachment mechanisms by using a unique engagement mechanism that restricts movement during rotation, ensuring secure attachment and balanced operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heavy solid steel shafts and lock collars are used to hold tooth mounts on the rotor, then the tooth mounts are securely held during high-speed rotation, but the replacement of worn tooth mounts becomes labor-intensive and costly requiring disassembly

Engineering Contradiction:

Improvesecure attachment of tooth mountsVSAvoidreplacement of worn tooth mounts

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The tooth mount system is divided into separable components: the tooth mount body, the tooth, and the attachment mechanism. This segmentation allows the tooth and mount to be quickly removed from the rotor without complex disassembly procedures, enabling rapid replacement while maintaining secure attachment during operation through the interlocking mechanism and retaining clips

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tooth and tooth mount are extracted as a removable assembly from the rotor, separated from the heavy solid steel shaft and lock collar system. This extraction allows the tooth-mount assembly to be quickly removed and replaced without requiring disassembly of the entire rotor structure, significantly reducing maintenance time and labor costs

Inventive Principle:

Principle #2Taking out (Extraction)

2Strength

If traditional attachment mechanisms are used to secure teeth on the rotor, then the teeth are firmly held during fragmentation, but the attachment mechanism experiences high stress and potential failure during impact

Engineering Contradiction:

Improvefirm attachment of teethVSAvoidstress on attachment mechanism

Core Design Contradiction:

StrengthVSStress or pressure

Solution Approach 1:

The attachment mechanism uses localized stress distribution through the interlocking mechanism between the tooth mount and rotor, and between the tooth and tooth mount. The design concentrates the attachment function at specific points (retaining clips, interlocking features) rather than distributing stress across the entire attachment structure, reducing overall stress on the mechanism while maintaining firm attachment

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The tooth mount design incorporates features that absorb and distribute impact forces before they reach the attachment mechanism. The mounting structure includes stress-absorbing elements and geometric features that cushion the impact of fragmentation forces, protecting the attachment mechanism from excessive stress and potential failure

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Stability of the object's composition

If tooth mounts are securely fastened to prevent movement, then teeth remain in position during high-speed rotation, but the mounts can become chipped, warped, or gouged leading to rotor imbalance

Engineering Contradiction:

Improveposition stability of teethVSAvoidintegrity of tooth mounts

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The tooth mount system separates the tooth from the rotor structure, with the tooth mounted on a removable tooth mount rather than being directly attached to the rotor. This segmentation protects the rotor from damage to the tooth mount and allows the tooth mount to be easily replaced if chipped, warped, or gouged, maintaining rotor balance and reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tooth mount design incorporates dynamic features that allow the mount to flex and absorb impacts during operation, reducing the likelihood of chipping, warping, or gouging. The mounting mechanism includes movable elements that can accommodate stress without permanent deformation, maintaining position stability while preserving mount integrity

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8066213B2Replaceable tooth mount rotor system for waste fragmenting machines

Publication Date: 2011.11.29 ROTOCHOPPER INC

AI summary

Advantageously, certain embodiments of the present invention provide a system that allows easy replacement of one or more worn rotor teeth and/or rotor tooth mount(s) mounted on a waste fragmenting machine. The present invention may further provide a system that allows minimization of stress during fragmentation on the attachment mechanisms between the mount and the rotor.