Rotary Disaggregator with Inclined Conical Drum for Deep Excavation

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Solution Overview

Problem

Existing rotary milling equipment is not suitable for deep processing operations due to its dimensions, which cause portions of the milling cutter to contact the ground, preventing it from excavating beyond a certain depth and complicating its operation.

Innovation Solution

A rotary disaggregator with a frustoconical rotating drum and an inclined rotation axis, which allows the drum to cover the supporting arm and project outward, preventing obstacles and enabling deeper excavations while maintaining a compact and manageable structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If traditional cylindrical milling cutters are used, then the structure is simple and easy to manufacture, but the cutter contacts the ground at deep depths preventing further excavation

Engineering Contradiction:

Improveexcavation depthVSAvoidoperability at deep depths

Core Design Contradiction:

Length of moving objectVSEase of operation

Solution Approach 1:

The patent applies a conical shape instead of a traditional cylindrical form for the milling cutter body. This conical configuration allows the cutter to taper toward the bottom, preventing contact with the ground at deep excavation depths and enabling the cutter to maintain operationality throughout the full range of motion from surface to bottom of the excavation site.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Length of moving object

If a central element is added to prevent ground contact, then deep excavation is enabled, but the construction complexity and device complexity increase

Engineering Contradiction:

Improveexcavation depthVSAvoidstructural complexity

Core Design Contradiction:

Length of moving objectVSDevice complexity

Solution Approach 1:

The milling cutter is divided into distinct functional segments: a conical body portion that prevents ground contact, a peripheral drum portion that performs the milling operation, and a support structure that provides mechanical stability. This segmentation allows each component to be optimized independently while maintaining overall simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conical shape of the milling cutter body serves as both a structural element and a functional one, eliminating the need for additional central elements. The tapered conical form naturally prevents ground contact while maintaining structural integrity and simplicity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Productivity

If the milling cutter body is made larger to improve cutting capacity, then productivity increases, but the risk of contacting the ground and forming obstacles increases

Engineering Contradiction:

Improvecutting capacityVSAvoidground contact and blockages

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The conical configuration allows the milling cutter to achieve large cutting capacity through its peripheral drum portion while the tapered body portion ensures clearance from the ground. This geometric design decouples the cutting capacity from the ground-contact risk, allowing both to be optimized simultaneously.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentUS20250067015A1Rotary di saggregator for excavators and operating machines in general

Publication Date: 2025.02.27 MECCANICA BREGANZESE S P A IN BREVE MB

AI summary

A rotary disaggregator for an operating machine, such as an excavator, comprising a support structure, a single rotating drum comprising a plurality of teeth and a drive unit for the rotating drum. The support structure includes a connection plate which defines a connection plane with respect to the operating machine and comprises a lateral arm, on which the rotating drum is rotatably supported. The rotation axis (X) of the conical drum is inclined with respect to the connection plane in such a manner that a generatrix of the rotating drum is essentially parallel with the connection plane.