US 12,339,117 B2 · System and method for detecting full-length fluctuation state of scraper conveyor of fully-mechanized coal mining working face

Abstract

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.

Claims8

Dependent claims

A system for detecting a full-length fluctuation state of a scraper conveyor in a fully mechanized mining face, comprising:

a proximity switch trigger module of a hydraulic support's base;
a displacement detection module of a digital oil cylinder for position and attitude regulation of a single-section scraper conveyor, a calculation module for a fluctuation angle of a middle groove of the single-section scraper conveyor and an output module of the full-length fluctuation state of the scraper conveyor;
wherein the proximity switch trigger module of the hydraulic support's base includes a proximity switch of the hydraulic support's base and a trigger device, and is used to detect an elevation angle of a push rod of the hydraulic support;
wherein 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, and is used to detect the telescopic amount of the piston rod of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor;
wherein the calculation module for the fluctuation angle of the middle groove of the single-section scraper conveyor is to calculate the fluctuation angle of the middle groove of the single-section scraper conveyor by using a displacement detection value of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor and the elevation angle of the push rod of the hydraulic support;
wherein the full-length fluctuation state output module of the scraper conveyor draws a full-length fluctuation curve of the scraper conveyor in an entire working face according to the obtained fluctuation angle of the middle groove of the single-section scraper conveyor, and outputs it to a display for display.

3 more elements

A method for detecting a full-length fluctuation state of a scraper conveyor in a fully mechanized mining face, characterized in that it comprises the following steps:

Step S1:
use a displacement detection module of a digital oil cylinder for position and attitude regulation of a single-section scraper conveyor, to measure a telescopic length x of a piston rod of the digital oil cylinder;
Step S2:
measure an elevation angle α of a push rod of a hydraulic support through the proximity switch trigger module of the hydraulic support's base;
Step S3:
Detect the telescopic length x of the piston rod of the digital oil cylinder through the displacement detection module of the digital oil cylinder for position and attitude regulation of the single-section scraper conveyor, and use the mathematical relationship between the elevation angle θ of a middle groove of the single-section scraper conveyor relative to the horizontal plane where the push rod of the hydraulic support is located and the telescopic length x of the piston rod of the digital oil cylinder, to obtain the elevation angle θ of the middle groove of the single-section scraper conveyor relative to the horizontal plane where the push rod of the hydraulic support is located;
Step S4:
Calculate the floating angle β=0+α of the middle groove of the single-section scraper conveyor relative to the bottom plate of a working face;
Step S5:
According to the floating angle β of the middle groove of each section of the scraper conveyor in the working face relative to the bottom plate of the working face, draw the undulating state curve of the entire length of the scraper conveyor in the entire working face.

7 more elements

Dependencies are inferred from the claim text.

System and method for detecting full-length fluctuation state of scraper conveyor of fully-mechanized coal mining working face

Life of this patent

System and method for detecting full-length fluctuation state of scraper conveyor of fully-mechanized coal mining working face

Life of this patent

Abstract

Claims8