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WO2014121646A1 - Procédé et appareil de commande de la rotation d'un tambour de haveuse - Google Patents

Procédé et appareil de commande de la rotation d'un tambour de haveuse Download PDF

Info

Publication number
WO2014121646A1
WO2014121646A1 PCT/CN2013/090675 CN2013090675W WO2014121646A1 WO 2014121646 A1 WO2014121646 A1 WO 2014121646A1 CN 2013090675 W CN2013090675 W CN 2013090675W WO 2014121646 A1 WO2014121646 A1 WO 2014121646A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
camera
coal
shearer
image processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/090675
Other languages
English (en)
Chinese (zh)
Inventor
童紫原
童敏明
李猛
唐守锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
Original Assignee
China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT, China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology CUMT
Publication of WO2014121646A1 publication Critical patent/WO2014121646A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F9/00—Devices preventing sparking of machines or apparatus
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/04—Safety devices

Definitions

  • the invention relates to a method and a device for controlling the rotation speed of a coal mining machine, in particular to a control method and a device for a drum type coal mining machine which are suitable for use in a coal mine underground fully mechanized mining working face.
  • the shearer is the necessary production equipment for the coal mine.
  • miners have high labor intensity, poor safety, and low productivity. Therefore, coal mining automation control is the development trend of coal mining industry.
  • various shearers are still in a mechanized state, lacking effective real-time automatic control devices. Due to the high concentration of coal dust in the coal face, the environment is harsh, which limits the progress of automatic control of the shearer.
  • the control of the shearer mainly includes the control of the movement control and the speed of the coal cutting drum. The latter is a key issue affecting the efficiency and safety of coal mining. There is no good solution at present.
  • the control of the speed of the coal cutting drum is mainly controlled according to the magnitude of the current of the drum driving motor, mainly to avoid overload damage of the driving motor. How to prevent excessive sparking by cutting coal and avoid detonating gas and coal dust through the control of drum speed, there is no relevant technology and research.
  • the object of the present invention is to overcome the deficiencies of the existing coal mining machine control technology, and to provide a method and a device for controlling the rotational speed of a shearer drum with a simple structure and convenient facts.
  • the method for controlling the rotation speed of the shearer drum of the present invention is as follows: a camera is arranged on the upper part of the fuselage of the shearer, and the camera is provided with a camera dustproof device, and the camera is used for coal mining when the shearer is working.
  • the spark image generated by the coal mining drum picking coal is collected, and the collected image information is sent to the image processor, and the image processor distributes the brightness and the spot distribution area of the spark in the image information collected by the camera.
  • the product value is compared with the product of the preset image brightness and the spark spot distribution area to determine the size of the spark.
  • the image processor sends a message to the drum speed controller to make the drum speed controller Decrease the speed of the coal mining drum of the shearer.
  • the image processor sends a message to the drum speed controller, so that the drum speed controller increases the speed of the drum, thereby avoiding the work efficiency while avoiding Cutting coal drum picks hit coal gangue to produce excessive spark detonating tiles Or coal dust;
  • a coal mining machine drum rotation speed control device used in the above method comprising a camera disposed on the upper part of the shearer body, a camera dustproof device on the camera, a camera connected to the image processor, an image processor and a roller
  • the speed controller is connected;
  • the camera dustproof device comprises a protection screen, the protection screen is provided with a reel motor, the reel motor is connected with a motor driver, and the reel motor is provided with a protection screen reel on both sides, and the two sides of the protection screen are respectively provided
  • the output end of the camera is connected to the input end of the image processor, the output end of the image processor is connected to the input of the drum speed controller, and the camera anti-dust device avoids the camera It is polluted by coal dust.
  • the camera dustproof device comprises two protective screen reels and a protective screen wound on both ends thereof, the protective screen is a long transparent film, and the two protective screen reels are provided with gears, and the gears on the screen reel are protected.
  • the reel motor is a stepping motor, connected to and controlled by the motor driver, and can drive two protection screen reels to rotate, the cleaning roller is two sets of brushed Rollers, fixed on both sides of the front of the screen.
  • the adaptive control of the speed of the shearer drum is solved, on the one hand, it can avoid the gas coal dust explosion accident caused by the spark in the coal mining process, and on the other hand, it is beneficial to avoid the drum encountering the coal.
  • the drum picking caused by the rock is too fast, and the drum rotation speed control based on the friction spark monitoring in the drum cutting coal solves the problem of coal rock identification and control, and has good use value.
  • Figure 1 is a block diagram showing the structure of the apparatus of the present invention.
  • FIG. 2 is a schematic block diagram of a dustproof device for a camera according to the present invention.
  • 1-camera 2-image processor; 3-drum speed controller; 4-camera dustproof device; 5-protective screen; 6-cleaning roller; 7-protective screen reel; 8-reel motor; -motor driver.
  • Embodiment 1 As shown in FIG. 1 , the steps of the method for controlling the speed of the shearer drum of the present invention are as follows: a camera 1 is arranged on the upper part of the fuselage of the shearer, and the camera 1 is provided with a camera dustproof device 4 When the coal machine is working, the camera 1 collects the spark image generated when the coal mining drum of the coal mining machine cuts the coal, and sends the collected image information to the image processor 2, and the image processor 2 collects the camera 1 The product value of the brightness in the image information and the spot area of the spark spot is compared with the product of the preset image brightness and the spot area of the spark spot to determine the size of the spark.
  • the image processor 2 Sending information to the drum rotation speed controller 3, causing the drum rotation speed controller 3 to reduce the rotation speed of the coal mining drum of the shearer, and when the size of the spark does not exceed the safety value, the image processor 2 sends a message to the drum rotation speed controller 3, so that The drum speed controller 3 increases the rotation speed of the drum, thereby avoiding the excessive production of the coal gangue when the cutting coal cylinder picks hit the coal gangue while ensuring the working efficiency.
  • the coal mining machine drum speed control device suitable for the above method comprises a camera 1 disposed on the upper part of the shearer body, and the camera 1 is provided with a camera dustproof device 4, the camera 1 and the image processing
  • the camera 2 is connected, the image processor 2 is connected to the drum speed controller 3;
  • the camera dustproof device 4 includes a protective screen 5, the protective screen 5 is provided with a reel motor 8, and the reel motor 8 is connected with a motor driver 9, a reel
  • protection screen reels 7 on both sides of the motor 8, and the two sides of the protection screen 5 are divided
  • There are two sets of cleaning rollers 6, two sets of cleaning rollers 6 are arranged to clamp the protection screen 5;
  • the output end of the camera 1 is connected to the input end of the image processor 2, and the output end of the image processor 2 is connected to the drum rotation speed control.
  • the camera anti-dust device 4 prevents the camera 1 from being contaminated by coal dust.
  • the camera dustproof device 4 includes two protective screen reels 7 and a protective screen 5 wound on both ends thereof.
  • the protective screen 5 is an elongated transparent film, and the two ends thereof are respectively wound up.
  • two protective screen reels 7 are provided with gears, and the gears on the protective screen reel 7 are engaged with the gears provided on the rotating shaft of the reel motor 8, and the two protective screen reels 7 and the reel motor 8 pass through the gears.
  • the reel motor 8 is a stepping motor, which is connected to and controlled by the motor driver 9, and can drive the two protective screen reels 7 to rotate.
  • the cleaning roller 6 is two sets of rollers with brushes, two in each group. The roller is fixed at both ends of the front of the camera lens, and the protective screen 5 is clamped, and the dust of the protective screen 5 is cleaned by the friction between the protective screen 5 and the cleaning roller 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Studio Devices (AREA)
  • Friction Gearing (AREA)

Abstract

Cette invention concerne un procédé et un appareil de commande de la vitesse de rotation d'un tambour de haveuse, comprenant une caméra (1), un processeur d'images (2), un contrôleur de vitesse de rotation de tambour (3) et un appareil pare-poussière de caméra (4). Pendant une opération havage, la caméra (1) orientée vers la position de havage du tambour de haveuse recueille en continu des images d'étincelles issues du havage par le tambour, un traitement d'identification de luminosité est effectué par le processeur d'images (2), la vitesse de rotation du tambour est contrôlée par le contrôleur de vitesse de rotation de tambour (3) en fonction de la grandeur et de la plage de la luminosité issue du havage par le tambour et quand les étincelles issues du havage sont grandes, la vitesse du tambour est commandée de façon à être réduite. D'autre part, quand les étincelles issues du havage sont petites, le tambour est commandé de façon à tourner à une grande vitesse normale. De cette manière, il est possible d'éviter les accidents impliquant des explosions de gaz et de poussière de charbon provoquées par des étincelles démesurées lors des opérations de havage tout en évitant l'usure trop rapide des dents du tambour provoquée par le contact du tambour avec le charbon et en garantissant une exploitation minière sûre et hautement efficace.
PCT/CN2013/090675 2013-02-05 2013-12-27 Procédé et appareil de commande de la rotation d'un tambour de haveuse Ceased WO2014121646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310047016.3 2013-02-05
CN201310047016.3A CN103133002B (zh) 2013-02-05 2013-02-05 采煤机的转速控制方法及装置

Publications (1)

Publication Number Publication Date
WO2014121646A1 true WO2014121646A1 (fr) 2014-08-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/090675 Ceased WO2014121646A1 (fr) 2013-02-05 2013-12-27 Procédé et appareil de commande de la rotation d'un tambour de haveuse

Country Status (2)

Country Link
CN (1) CN103133002B (fr)
WO (1) WO2014121646A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11331758B2 (en) 2018-08-10 2022-05-17 Walmart Apollo, Llc Systems and methods for altering high throughput cutting of sealing elements on packages
US11904490B2 (en) 2018-08-10 2024-02-20 Walmart Apollo, Llc Systems and methods for high throughput cutting of sealing elements on packages

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103133002B (zh) * 2013-02-05 2014-11-19 中国矿业大学 采煤机的转速控制方法及装置
CN103411637B (zh) * 2013-07-24 2015-12-16 南通神华电气有限公司 光学视窗的自动防尘防污装置
CN105156149B (zh) * 2015-07-16 2017-12-05 中国矿业大学 一种综采工作面设备检测及控制方法
CN108615327A (zh) * 2018-06-11 2018-10-02 广州市景彤机电设备有限公司 移动端可视化监控管道火花方法与移动终端
CN119456628B (zh) * 2024-12-06 2025-12-19 中国矿业大学 一种激光雷达防尘除雾装置

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CN102168559A (zh) * 2011-03-15 2011-08-31 太原矿山机器集团有限公司 主动抑爆型采煤机
CN103133002A (zh) * 2013-02-05 2013-06-05 中国矿业大学 采煤机滚筒转速控制方法及系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11331758B2 (en) 2018-08-10 2022-05-17 Walmart Apollo, Llc Systems and methods for altering high throughput cutting of sealing elements on packages
US11904490B2 (en) 2018-08-10 2024-02-20 Walmart Apollo, Llc Systems and methods for high throughput cutting of sealing elements on packages
US12172335B2 (en) 2018-08-10 2024-12-24 Walmart Apollo, Llc Systems and methods for high throughput cutting of sealing elements on packages

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Publication number Publication date
CN103133002A (zh) 2013-06-05
CN103133002B (zh) 2014-11-19

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