Integrated Conveyor Belt Tracking Pulley for Reversible Conveyors

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Solution Overview

Problem

Conventional powered conveyor belt trackers require numerous additional parts, complex installations, and are prone to contamination, making them unsuitable for hygienic applications and reversible conveyor belts.

Innovation Solution

A bi-directional belt tracking apparatus with integrated control electronics and actuators within the pulley, featuring a pulley assembly that shifts upstream or downstream to correct mistracking, with sensors and actuators protected from debris, allowing for simplified installation and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If powered belt trackers with separate actuators, sensors and controls are used, then belt tracking capability is improved, but device complexity and installation difficulty increase

Engineering Contradiction:

Improvebelt tracking capabilityVSAvoidnumber of parts

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the actuator, belt position sensor, and control electronics into a single integrated assembly mounted on the pulley. The actuator is positioned within the pulley interior, the sensor is mounted on the pulley periphery, and control electronics are housed in the pulley, eliminating the need for separate mounting structures and reducing the overall number of parts while maintaining tracking functionality

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The pulley serves multiple functions: it transports the belt, houses the actuator for tracking correction, mounts the sensor for position detection, and contains the control electronics. This multi-functional design reduces the need for additional dedicated components and simplifies the overall system architecture

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If powered belt trackers with separate actuators and sensors are used, then belt tracking capability is improved, but ease of installation and maintenance deteriorate

Engineering Contradiction:

Improvebelt tracking capabilityVSAvoidinstallation simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

By combining all tracking components into a single integrated assembly mounted on the pulley, the installation process is simplified to mounting one unit rather than coordinating multiple separate components. Maintenance is also simplified as the integrated design reduces the number of parts that can fail and eliminates the need for complex wiring between separate actuators, sensors, and controls

Inventive Principle:

Principle #5Merging (Combining)

3Measurement precision

If belt sensors are positioned downstream of the pulley, then belt position detection is improved, but susceptibility to contamination increases

Engineering Contradiction:

Improvebelt position detectionVSAvoidcontamination susceptibility

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

Instead of positioning the sensor downstream of the pulley where it would be exposed to contamination, the patent mounts the belt position sensor on the periphery of the pulley itself. This inverted positioning approach maintains the ability to detect belt position while protecting the sensor from debris and contaminated material that would accumulate in downstream positions

Inventive Principle:

Principle #13The other way round (Inversion)

4Reliability

If numerous additional parts and mounting features are used, then belt tracking functionality is improved, but space requirements and installation work increase

Engineering Contradiction:

Improvebelt tracking functionalityVSAvoidinstallation space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The integrated assembly combines the actuator, sensor, and control electronics into a compact unit mounted on the pulley, eliminating the need for separate mounting structures, brackets, and support elements. This consolidation significantly reduces the space required for installation while maintaining full tracking functionality

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The actuator is positioned within the interior space of the pulley, the control electronics are housed in the pulley, and the sensor is mounted on the pulley periphery. This nested arrangement utilizes the existing pulley structure to accommodate all tracking components without requiring additional external space

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS20250313414A1Conveyor belt tracking apparatus and system

Publication Date: 2025.10.09 FLEXIBLE STEEL LACING

AI summary

A belt tracking apparatus for urging a mistracking conveyor belt towards a correct travel path is disclosed. The apparatus includes a rotatable pulley for engaging the conveyor belt and a support assembly configured to operatively mount the pulley in engagement with the conveyor belt. In some forms, the apparatus includes a sensor mounted for rotation with the pulley that is configured for detecting a position of a portion of the conveyor belt. The apparatus may include an actuator mounted in an internal space of the pulley. The actuator shifts an end portion of the pulley generally upstream or downstream relative to a belt travel direction of the conveyor belt for urging the conveyor belt back toward the correct travel path in response to the detected position of the belt portion indicating the conveyor belt is mistracking.