Sugar Cane Press Roller with Modified Helical Gears

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Solution Overview

Problem

Traditional sugar cane shred press rollers have limited improvement in sugar cane shred holding capacity, pressing, and shredding, leading to uneven force distribution, insufficient juice extraction, and reduced roller lifespan due to uneven pressure and fatigue damage.

Innovation Solution

A sugar cane shred press roller with a cylindrical body, circumferential bosses, modified cylindrical helical gears with opposite modification coefficients, and annular juice discharge grooves, which improves sugar cane shred holding, crushing, and shredding capabilities, and enhances force uniformity and juice extraction efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cemented carbide spots are randomly welded on the side surface of a V-shaped tooth pattern, then the sugar cane shred holding capacity is improved, but the pressure distribution becomes uneven and the roller lifespan is reduced

Engineering Contradiction:

Improvesugar cane shred holding capacityVSAvoidpressure distribution uniformity

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent changes the random welding method to a systematic gear tooth pattern with specific parameters (modulus 3-8mm, tooth width 50-100mm, pitch 20-40mm). This transforms the uncertain random spot distribution into a controlled geometric pattern that ensures uniform pressure distribution while maintaining effective holding capacity through optimized tooth dimensions and spacing.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The gear tooth pattern creates localized pressing zones with varying tooth configurations across the roller surface. Different regions have differently sized and spaced teeth, providing locally optimized pressing characteristics that collectively achieve uniform overall pressure distribution while maintaining high holding capacity in each local area.

Inventive Principle:

Principle #3Local quality

2Productivity

If cemented carbide spots are welded on the roller surface, then the crushing and shredding functions are enhanced, but the processing cost increases and the welding process becomes time-consuming

Engineering Contradiction:

Improvecrushing and shredding functionVSAvoidprocessing cost and welding time

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The patent specifies optimized gear parameters (modulus 3-8mm, tooth width 50-100mm, pitch 20-40mm) that balance crushing effectiveness with manufacturing efficiency. These standardized parameters enable more efficient production compared to random spot welding, reducing both time and cost while maintaining enhanced crushing and shredding functions.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The roller surface is segmented into multiple gear teeth with specific spacing and dimensions. This segmentation allows the pressing function to be distributed across many small, standardized elements rather than requiring large welded spots, reducing material usage and welding operations while maintaining effective crushing and shredding capability.

Inventive Principle:

Principle #1Segmentation

3Area of stationary object

If V-shaped tooth grooves are arranged on the roller surfaces, then the contact area is increased, but the pressing area improvement is still limited and blockage occurs

Engineering Contradiction:

Improvecontact areaVSAvoidpressing area efficiency

Core Design Contradiction:

Area of stationary objectVSProductivity

Solution Approach 1:

The patent replaces the V-shaped groove geometry with gear tooth profiles that have curved surfaces. The gear tooth geometry provides better contact with the sugar cane material through their rounded profiles, increasing effective pressing area and preventing blockage by allowing material to be gripped and crushed more effectively without getting stuck in sharp V-shaped corners.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The gear tooth pattern combines multiple functional elements (gripping teeth, crushing surfaces, spacing features) into a single integrated pattern. This composite geometric design achieves superior pressing area efficiency by combining the functions of holding, crushing, and shredding in one unified structure, overcoming the limitations of separate V-shaped grooves.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS20250027175A1Sugar cane shred press roller and presser comprising same

Publication Date: 2025.01.23 SHAANXI UNIV OF SCI & TECH

AI summary

A sugar cane shred press roller and a presser including the same are provided, which belong to the technical field of sugar-making equipment. Several circumferential bosses are arranged in an axial direction of a cylindrical roller body of the sugar cane shred press roller; modified cylindrical helical gears with opposite modification coefficients are formed on both sides of each of the circumferential bosses; and an annular juice discharge groove is formed between adjacent circumferential bosses. A presser with the sugar cane shred press roller is provided, axes of several sugar cane shred press rollers are spatially parallel with each other, the circumferential bosses and the juice discharge grooves of the adjacent sugar cane shred press rollers fit with each other and have gaps left, and the modified cylindrical helical gears of the adjacent sugar cane shred press rollers are meshed with each other.