Scraper Conveyor Fluctuation Detection Using Digital Oil Cylinders
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In fully mechanized mining faces, scraper conveyors often experience 'floating' due to structural limitations, coal seam fluctuations, and coal pile deformations, leading to poor coal pulling, safety issues, and undulating conveyor states that affect the 'three-straight' condition of the scraper.
Innovation Solution
A system and method utilizing a proximity switch trigger module, a displacement detection module for digital oil cylinders, and a calculation module to detect the full-length fluctuation state of scraper conveyors, providing real-time, low-cost monitoring and data support for improving conveyor straightness and propulsion pitch angle adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the scraper conveyor is designed with fixed structure and limited curvature, then the manufacturing and installation are simplified, but the conveyor cannot adapt to coal seam fluctuations and appears 'floating', causing poor coal pulling and safety issues
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed scraper conveyor structure into a dynamic adjustable system. Digital oil cylinders are installed to enable real-time adjustment of the conveyor's inclination angle, allowing it to adapt to coal seam fluctuations and eliminate the 'floating' phenomenon while maintaining operational safety and coal pulling efficiency.
Solution Approach 2:
The patent implements parameter changes by using digital oil cylinders to dynamically adjust the inclination angle of the scraper conveyor. This parameter adjustment allows the conveyor to adapt to varying coal seam conditions, resolving the contradiction between adaptability and structural simplicity.
2Measurement precision
If no detection system is installed for full-length fluctuation state, then the device complexity and cost are reduced, but the straightness of the scraper conveyor cannot be monitored, leading to undulating conditions and safety hazards
Solution Approach 1:
The patent replaces complex mechanical detection systems with a digital sensing system. Digital oil cylinders equipped with sensors detect the inclination angle and position of the scraper conveyor, providing precise measurement of full-length fluctuation state. This substitution reduces mechanical complexity while achieving accurate real-time monitoring.
Solution Approach 2:
The patent implements feedback by using sensors in the digital oil cylinders to continuously monitor the scraper conveyor's state and provide real-time data. This feedback mechanism enables precise measurement of fluctuation state, allowing for timely adjustments to maintain conveyor straightness and prevent safety hazards.
3Productivity
If the scraper conveyor operates without real-time monitoring, then the operational simplicity is maintained, but coal pulling efficiency decreases and safety risks increase due to undulating conditions
Solution Approach 1:
The patent uses feedback from digital oil cylinder sensors to monitor scraper conveyor operation in real-time. This enables timely detection and correction of undulating conditions, maintaining optimal coal pulling efficiency while preventing safety risks, despite the added monitoring complexity.
Solution Approach 2:
The system enables self-service by using the digital oil cylinder's own sensors to monitor its operational state. The scraper conveyor system self-monitors its inclination and position, allowing for automatic adjustments to maintain optimal coal pulling performance and safety without requiring external complex monitoring 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
The system effectively monitors and corrects the fluctuation state of scraper conveyors in real-time, ensuring normal operation, improving coal extraction efficiency, and enhancing safety by maintaining the 'three-straight' condition of the scraper conveyor.
Implementation Method 1
a proximity switch trigger module of the hydraulic support's base, a displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor
Implementation Method 2
The displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor includes a digital oil cylinder for position and attitude regulation of the single-section scraper conveyor and its internal piston rod detection device
Data Source
AI summary
The invention discloses a system and a method for detecting a full-length fluctuation state of a scraper conveyor in a fully-mechanized coal mining working face. The detection system consists of a proximity switch trigger module of the hydraulic support base, a displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, a calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor and a full-length fluctuation state output module of the scraper conveyor. Detect the elevation angle α of the push rod of the hydraulic support through the proximity switch trigger module of the hydraulic support base, detect the telescopic amount of the piston rod of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor through the displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, the calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor calculates a fluctuation angle of the middle groove of the single-section scraper conveyor; and finally, the output module of the full-length fluctuation state of the scraper conveyor draws a full-length fluctuation curve of the scraper conveyor of the entire working face. The dynamic fluctuation change of a scraper conveyor in the vertical direction of a working face can be effectively monitored, providing a data foundation for subsequent adjustment of a fluctuation degree of the scraper conveyor.