Belt conveyor deviation detection device and automatic adjustment method

A belt conveyor and detection device technology, applied in the direction of conveyor control devices, conveyors, conveyor objects, etc., can solve problems such as output instability, manpower and time input, and impact on coal mine production efficiency

Active Publication Date: 2021-12-10
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the belt is in the deviation state for a long time, it will cause the belt to turn over the material, causing the force on one side of the belt to exceed the longitudinal breaking force of the belt, which will cause safety hazards such as belt lateral tearing, so timely detection of belt deviation and deviation correction problem needs to be solved
[0003] At present, the coal mine belt deviation monitoring method mainly uses the deviation switch sensor, and the deviation sensor determines the deviation amount and processes the deviation. However, the actual coal mine production environment is more complicated, and more deviation switches need to be installed on both sides of the belt running. Sensor, this detection method mainly has magnetic interference from adjacent sensors during the operation of the belt, and the output is in an unstable state, which affects the interpretation of data; the belt deviation switch and protection device also need to be shut down regularly for calibration and testing, and the underground The conveyor belt is long, requiring manpower and time for detection, which will affect the production efficiency of the coal mine

Method used

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  • Belt conveyor deviation detection device and automatic adjustment method
  • Belt conveyor deviation detection device and automatic adjustment method
  • Belt conveyor deviation detection device and automatic adjustment method

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Experimental program
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Effect test

Embodiment 1

[0034] see Figure 2~4 , a belt conveyor deviation detection and automatic adjustment method, including

[0035] The visual inspection module is installed directly above the belt 4 in the middle of the belt conveyor, and it is composed of a carrier frame 6, a high-definition camera 1 and a line laser camera 2 installed on the carrier frame 6;

[0036] The idler adjustment module 5 is located on the inner side of the bearing frame 6 and is respectively arranged on both sides of the bottom of the belt 4 , and it is composed of a bearing bearing 8 and a mobile hydraulic cylinder 7 connected to both ends of the bearing bearing 8 .

[0037] In the embodiment of the present invention, the high-definition camera 1 arranged on both ends of the visual collection module collects the left and right side edge images of the belt 4; the line laser rangefinder 2 in the middle is used to measure the top of the coal material 3 to the collection module The height h(u) of the frame; the front a...

Embodiment 2

[0039] see Figure 1~4 , an automatic adjustment method of a belt conveyor deviation detection device, the automatic adjustment method includes the following steps

[0040] Step S1: image data acquisition, four high-definition cameras 1 on the visual acquisition module collect the video image I when the belt is working; the middle line laser rangefinder 2 measures the distance from the coal material 3 to the 6 top beams of the bearing frame;

[0041] Step S2: Image data preprocessing, extracting key frames from the video image I obtained by the high-definition camera 1, and using gamma and fractional image enhancement on the frame image to obtain an image G; Height information for data denoising processing;

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Abstract

The invention discloses a belt conveyor deviation detection device and an automatic adjustment method. The belt conveyor deviation detection device comprises a visual detection module and a carrier roller control module. The automatic adjustment method comprises the steps that firstly, the visual detection module installed in the middle of a belt conveyor is used for obtaining middle belt operation images, middle front and rear operation images and middle coal flow information when the belt conveyor works, gamma and fractional orders are used for image enhancement processing, Canny edge detection is conducted on the processed images so as to obtain carrier roller and belt edge information; the deviation angle is calculated through the front and rear carrier rollers in the middle of a belt and a belt edge straight line, and then the transverse deviation amount is detected according to information obtained through middle edge detection; the stress condition of the belt is calculated according to belt middle coal flow information obtained by a line laser camera of the visual detection module, and finally belt deviation is corrected in real time through the carrier roller control module according to the belt stress condition and the deviation amount, so that the deviation amount of the belt is effectively detected in time and adjusted in time. According to the belt conveyor deviation detection device and the automatic adjustment method, the purpose of coal conveying safety production is achieved.

Description

technical field [0001] The invention relates to a belt conveyor deviation detection device, in particular to a belt conveyor deviation detection and automatic adjustment method, which belongs to the technical field of belt transportation monitoring and control. Background technique [0002] The belt conveyor is an important equipment for transporting coal in coal mines. Due to the uneven accumulation of coal on the belt, the uneven force on the belt, the impact of coal on the belt and other factors, after the belt has been running for a long time, the deviation of the belt often occurs. When the belt deviates to a certain extent, the belt will trigger the emergency stop device for deflection prevention, causing the operating system to stop and affecting the production process. The deviation of the belt also increases the axial force on the drum and idler roller, causing damage to the drum shaft and idler bearing. If the belt is in the deviation state for a long time, it wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/00B65G15/60
CPCB65G43/00B65G15/60B65G2203/0266B65G2203/04
Inventor 刘银奎刘新华华德正郭潇墙张晓光郝敬宾刘晓帆周皓路和刘浩王勇梁斌
Owner CHINA UNIV OF MINING & TECH
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