Dual Belt Conveyor Tension Rollers for Synchronized Drive Control

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Solution Overview

Problem

Conveyor systems face challenges in accurately maintaining tension in dual conveyor belts, which affects load carrying capacity, as they often rely on a common drive that requires synchronized belt speeds.

Innovation Solution

A tensioning system with independently adjustable tension rollers and a center drive mechanism allows for simultaneous adjustment of tension on each conveyor belt, enabling independent tension control and access to the conveyor belt for maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a common center drive is used to rotate drive rollers for both conveyor belts, then synchronized belt speeds are achieved, but independent tension control is lost

Engineering Contradiction:

Improvesynchronized belt speedsVSAvoidindependent tension control

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The system divides the tension control function into separate segments for each conveyor belt. Each belt has its own tension roller (44, 46) that can be independently adjusted, allowing each belt's tension to be controlled separately while both belts share a common drive mechanism for synchronized movement.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If tension rollers are fixed in position, then structural simplicity is maintained, but tension adjustment capability is reduced

Engineering Contradiction:

Improvestructural simplicityVSAvoidtension adjustment capability

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The tension rollers are made dynamically adjustable through a mechanical linkage system. The linkage connects the tension rollers to an adjustment mechanism, allowing the rollers to move between fixed and adjusted positions. This enables tension adjustment while maintaining structural simplicity when the system is in normal operation.

Inventive Principle:

Principle #15Dynamics

3Strength

If the conveyor belt is tightly enclosed for structural integrity, then structural strength is improved, but maintenance access is reduced

Engineering Contradiction:

Improvestructural integrityVSAvoidmaintenance access

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The design extracts or removes portions of the enclosing structure (side rails) at specific locations to create access points. These openings allow maintenance personnel to reach the conveyor belt and tension adjustment mechanisms without compromising the overall structural integrity of the enclosed conveyor system.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12534301B2Tensioning system for dual belt conveyor

Publication Date: 2026.01.27 DORNER MFG CORP

AI summary

A tensioning system for a conveyor belt having a center drive. The tensioning system allows a user to increase or decrease the tension in a conveyor belt that passes around a drive pulley and a pair of tension rollers. The tensioning system allows a user to simultaneously rotate each of the tension rollers into a different position relative to the drive pulley by means of adjustment arms controlled by a pinion to increase or decrease the tension on the conveyor belt.