Cold Planer Conveyor Belt Speed Control via Magnetic Sensor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for managing cold planer conveyor belts lack accurate, real-time measurement of conveyor belt speed, leading to inefficiencies in material transfer and potential overloading of haul trucks, which can result in downtime and resource wastage.
Innovation Solution
A system comprising a motor, head pulley shaft, speed ring gear, and speed sensor mounted on the conveyor belt tensioner block, which generates signals indicative of the conveyor belt's speed, allowing for precise control of the conveyor belt speed and material transfer rate through a system controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conveyor belt speed is not accurately monitored, then the system is simpler, but material transfer efficiency decreases and truck overloading occurs
Solution Approach 1:
The patent replaces complex mechanical speed measurement systems with a magnetic field-based sensor system. The speed sensor uses magnetic field detection to measure conveyor belt speed through non-contact means, eliminating the need for mechanical couplings or direct physical measurement devices that would complicate the system.
Solution Approach 2:
The speed sensor system serves multiple functions: it monitors conveyor belt speed, prevents truck overloading, optimizes material transfer efficiency, and provides data for coordinated truck dispatching. This multi-functional approach consolidates what could have been separate systems into a single integrated solution.
2Measurement precision
If real-time speed measurement is implemented, then material transfer is optimized, but system complexity increases
Solution Approach 1:
The patent employs a magnetic speed sensor that provides precise real-time speed measurements without mechanical contact. This non-contact measurement method achieves high measurement precision while avoiding the complexity of mechanical transmission systems or direct coupling devices.
Solution Approach 2:
The speed sensor system automatically provides real-time feedback to the control system, enabling self-regulation of conveyor belt speed. The system uses the measured speed data to automatically adjust operation, eliminating the need for manual intervention or complex external monitoring devices.
3Productivity
If conveyor speed is controlled to prevent overloading, then truck utilization improves, but control system complexity increases
Solution Approach 1:
The patent implements a feedback control system where the speed sensor continuously monitors conveyor belt speed and provides real-time data to the controller. The controller uses this feedback to automatically adjust conveyor speed, ensuring that material transfer rates match truck loading capacities and preventing overloading.
Solution Approach 2:
The control system automatically regulates conveyor belt speed based on real-time sensor data without requiring external intervention. The system self-adjusts to optimize truck utilization, eliminating the need for manual speed adjustments or complex external coordination systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate, real-time monitoring and control of conveyor belt speed, optimizing material transfer efficiency and preventing overloading, thereby enhancing operational efficiency and compliance with transportation regulations.
Implementation Method 1
A speed sensor is mounted on the conveyor belt tensioner block in a position radially outward from the teeth of the speed ring gear as the speed ring gear and head pulley shaft rotate within the bore through the belt tensioner block. The speed sensor is configured to generate signals indicative of the speed of rotation of the head pulley shaft and speed ring gear.
Data Source
AI summary
A system and method for determining and controlling a speed of a conveyor belt configured for transferring material from a source of the material to a haul vehicle includes a motor and associated head pulley shaft operatively coupled to a conveyor belt head pulley configured for driving the conveyor belt. The motor is connected to a conveyor belt tensioner block configured to enable adjustment of a tension in the conveyor belt, and the head pulley shaft is rotatably supported within the conveyor belt tensioner block. A speed ring gear is mounted on the head pulley shaft and located at least partially within a bore through the conveyor belt tensioner block. A speed sensor is mounted on the conveyor belt tensioner block in a position radially outward from teeth of the speed ring gear as the speed ring gear and head pulley shaft rotate within the bore through the belt tensioner block. The speed sensor is configured to generate signals indicative of the speed of rotation of the head pulley shaft and speed ring gear. A system controller determines a speed of the conveyor belt from the speed of rotation of the head pulley shaft and speed ring gear, and controls the speed of the conveyor belt to control an amount and rate of transfer of material along the conveyor belt from the source of material to the haul vehicle during a time period.