WO2020177405A1 - 一种刮板输送机中部槽摩擦力监测系统 - Google Patents

一种刮板输送机中部槽摩擦力监测系统 Download PDF

Info

Publication number
WO2020177405A1
WO2020177405A1 PCT/CN2019/120832 CN2019120832W WO2020177405A1 WO 2020177405 A1 WO2020177405 A1 WO 2020177405A1 CN 2019120832 W CN2019120832 W CN 2019120832W WO 2020177405 A1 WO2020177405 A1 WO 2020177405A1
Authority
WO
WIPO (PCT)
Prior art keywords
scraper
friction
middle groove
force
scraper conveyor
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/CN2019/120832
Other languages
English (en)
French (fr)
Inventor
王大刚
王瑞鑫
朱真才
朱辉龙
沈刚
李翔
汤峪
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
Priority to US17/418,853 priority Critical patent/US11440740B2/en
Priority to RU2021117305A priority patent/RU2759555C1/ru
Priority to AU2019433040A priority patent/AU2019433040B2/en
Publication of WO2020177405A1 publication Critical patent/WO2020177405A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/18—Details
    • B65G19/28—Troughs, channels, or conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/04—Control devices, e.g. for safety, warning or fault-correcting detecting slip between driving element and load-carrier, e.g. for interrupting the drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/76—Fixed or adjustable ploughs or transverse scrapers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/02—Measuring coefficient of friction between materials

Definitions

  • the invention relates to a friction force monitoring system for the middle groove of a scraper conveyor, in particular to a multipoint monitoring system for the friction force of the middle groove of a scraper conveyor under complex and severe operating conditions, and belongs to the technical field of scraper conveyor testing.
  • Scraper conveyor as the key conveying equipment for fully mechanized coal mining face, undertakes the important tasks of transporting coal, providing running tracks for shearers, and providing moving fulcrums for hydraulic supports.
  • the scraper conveyor uses the principle of chain transmission. Driven by the drive motor, hydraulic coupling and reducer, the scraper chain (including the circular chain, the scraper and the chain linker) and the middle groove are used as the traction mechanism and the supporting mechanism respectively. , The sprocket drives the endlessly closed scraper chain to make a continuous circulation movement on the middle groove, and the coal on the middle groove is transported from the tail to the nose for unloading.
  • Chinese patent CN104609133A discloses a detection method and detection system for plate wear in the middle groove of a scraper conveyor, which can realize wear monitoring.
  • this method can only qualitatively monitor whether the middle groove is worn or not, and cannot monitor the friction between the middle groove of the scraper conveyor and the coal bulk under dynamic or impact load conditions.
  • Chinese patent CN106865156A discloses a wear detection device for the middle groove of a scraper conveyor and its detection system.
  • the device can use ultrasound to detect the wear of the middle groove.
  • the device only monitors the thickness of the middle groove by ultrasonic to determine the wear
  • it is impossible to monitor the friction force during the operation of the scraper conveyor, and in the underground environment, due to the adhesion of coal powder, ultrasonic monitoring of the thickness of the middle groove will produce a large error.
  • the present invention provides a friction monitoring system for the middle groove of a scraper conveyor, which can be used between the scraper conveyor ring chain-coal bulk material and the middle groove under complex and severe working conditions.
  • the system for monitoring impact load, friction, coefficient of friction, and temperature provides technical means for the design, safety warning, and health evaluation of the scraper conveyor. At the same time, it can provide research on the friction and wear and fatigue fracture mechanism of the middle groove of the scraper. Data basis.
  • a friction monitoring system for the middle groove of a scraper conveyor In each section of the middle groove of the scraper conveyor, three through rectangular holes are machined at equal intervals along the direction of travel based on the center line of the middle groove. The bottom of the groove is processed with a line mounting hole that is not penetrated, and the processed through rectangular hole is connected with the line mounting hole;
  • a rectangular force receiving module is installed in each through rectangular hole, the rectangular force receiving module matches the shape of the through rectangular hole, and the upper surface of the rectangular force receiving module coincides with the upper surface of the middle groove;
  • the three-dimensional force sensor is arranged between the force receiving module and the bottom of the middle groove.
  • the upper surface of each force receiving module is provided with a counterbore.
  • the counterbore is connected with the three-dimensional force sensor at the bottom through a hexagonal bolt.
  • a sealing cover is arranged on the upper part, and the upper surface of the sealing cover coincides with the upper surface of the force receiving module;
  • the temperature sensor is embedded in each force module
  • the controller is signally connected to the three-dimensional force sensor and the temperature sensor through a data acquisition card;
  • the thermal-force data of the middle groove of the scraper conveyor is obtained in real time, and the fault location of the scraper is determined based on the abnormality of the data.
  • the judgment method is as follows:
  • the system can determine that the scraper conveyor is faulty at that location;
  • the computer can calculate the load capacity, friction force, average friction coefficient and temperature of the friction surface of the middle groove of the scraper machine.
  • the calculation method is as follows:
  • f x1 , f x2 , f x3 tangential friction output from the three-dimensional force sensor
  • the average friction coefficient is calculated:
  • the estimated temperature of the friction surface is the average temperature measured by all embedded temperature sensors.
  • the force receiving module is a rectangular steel block made of the same material as the middle groove.
  • the scraper conveyor system includes a scraper, a double chain, a sprocket, a reducer, a motor, and a frequency converter.
  • the frequency converter is connected to the motor, and a reducer is connected between the motor and the sprocket.
  • the sprocket and the double chain Engaged, the upper surface of the double chain is equidistantly installed with scrapers;
  • the frequency converter is electrically connected with the controller.
  • the invention can monitor the friction condition of the middle groove of the scraper conveyor in real time, using a three-dimensional force sensor and a pre-embedded temperature sensor, through this multi-point interconnection monitoring, can obtain real-time thermal-force data of the middle groove of the scraper conveyor during operation , Through the numbered sensor device, the fault location of the scraper machine is judged according to the abnormal point of the data.
  • the PLC control system controls the frequency converter 13 to stop the motor 8 from running.
  • the operation of the scraper machine is evaluated for health through the calculated friction coefficient.
  • the friction coefficient is large or its fluctuation range is large, it indicates that the working condition of the middle groove is relatively bad, and the middle groove of the scraper needs to be overhauled in time Or replace it to prevent work accidents.
  • the computer can realize the calculation of the load capacity, friction force, friction coefficient and the temperature of the friction surface of the middle groove of the scraper, so as to establish an overload protection system, realize the evaluation of the operation health of the scraper, and the scraper
  • the research on friction, wear and fatigue fracture mechanism of the middle groove provides a data basis.
  • Figure 1 is a schematic diagram of the structure of the test bench of the present invention.
  • Figure 2 is a front view of Figure 1;
  • Figure 3 is a cross-sectional view along the line A in Figure 2;
  • FIG. 4 is a schematic diagram of the connection structure of the rectangular force receiving module and the force receiving module of the present invention.
  • FIG. 5 is a working principle diagram of the present invention.
  • Figure 6 is a schematic diagram of the structure of the test system of the present invention.
  • a friction monitoring system for the middle groove of a scraper conveyor includes a scraper conveyor system and a sensor detection system.
  • the scraper conveyor system is composed of the fuselage, the middle groove, the sliding lug, the scraper, the double chain, the sprocket, the reducer, the motor and the frequency converter;
  • the sensor monitoring system is composed of the force module, the three-dimensional force sensor, and the embedded temperature sensor composition.
  • the frequency converter 13 is connected to the electric motor 8.
  • a reducer 6 is connected between the electric motor 8 and the sprocket 7.
  • the sprocket 7 meshes with the double chain 4, and the scraper 3 is installed on the double chain 4 at equal intervals.
  • a total of three through rectangular holes are opened in the middle and both sides of the middle groove 5.
  • the force receiving module 1 is in the through rectangular hole, the upper surface coincides with the upper surface of the middle groove, the force receiving module 1 is connected with the three-dimensional force sensor 12, and the three-dimensional force sensor 12 is fixed at the bottom of the middle groove 5.
  • the sensor monitoring device is composed of a three-dimensional force sensor 12, a embedded temperature sensor 11 and a force receiving module 1.
  • the embedded temperature sensor 11 is installed inside the force receiving module 1, and there is a counterbore on the upper surface of the force receiving module 1.
  • the force receiving module 1 is connected to the three-dimensional force sensor 12 through a hexagonal bolt in the counterbore, and the countersunk hole sealing cover 10 is connected in the counterbore, and its upper surface coincides with the upper surface of the force receiving module 1.
  • the motor 8 is adjusted through the computer and PLC control system to control the start and stop.
  • the motor 8 drives the reducer 6, and the output of the reducer 6 is connected to the sprocket 7, which drives the sprocket 7 and the double chain
  • the chain 4 runs and the scraper conveyor starts to work.
  • the embedded temperature sensor 11 is used to monitor the temperature dynamic change of the middle groove of the scraper during operation
  • the three-dimensional force sensor 12 is used to monitor the dynamic change of friction and the dynamic change of the positive pressure during the operation of the scraper.
  • the measured data is filtered, amplified, and converted into the data processing system through a data acquisition system composed of filters, A/D converters, and amplifiers. After data processing, the temperature of the middle tank during the operation of the scraper conveyor can be obtained. Friction, positive pressure data and its dynamic changes with operating time.
  • each section of the scraper On each section of the scraper, three through-side rectangular holes are opened along the direction of travel, which are used to arrange the sensor monitoring system.
  • the scraper conveyor can be obtained in real time.
  • the thermal-force data of the trough during operation, and the fault location of the scraper can be judged based on the abnormality of the data.
  • the area specification of each force module is 60mm ⁇ 70mm. According to the monitoring data of multiple force modules arranged, the load capacity, friction force, average friction coefficient and friction surface of the middle groove of the scraper can be realized through the computer.
  • the calculation method of temperature is as follows.
  • the estimated temperature of the friction surface is the average temperature measured by all embedded temperature sensors.
  • the PLC control system controls the frequency converter 13 to stop the motor 8 from running.
  • the operation of the scraper machine is evaluated for health through the calculated friction coefficient.
  • the friction coefficient is large or its fluctuation range is large, it indicates that the working condition of the middle groove is relatively bad, and the middle groove of the scraper needs to be overhauled in time Or replace.
  • the load capacity, friction force, friction coefficient, and friction surface temperature of the whole machine calculated based on the data processing system can provide a data basis for the study of abrasive wear between the central groove of the scraper and the coal bulk material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Control Of Conveyors (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

一种刮板输送机中部槽摩擦力监测系统，包括刮板输送机系统和传感检测系统。刮板输送机系统由机身（9）、中部槽（5）、推移耳（2）、刮板（3）、双链条（4）、链轮（7）、减速器（6）、电动机（8）与变频器（13）组成；传感监测系统由受力模块（1）、三维力传感器（12）、预埋温度传感器（11）组成。该系统能够对复杂恶劣工况下刮板输送机圆环链-煤散料-中部槽之间冲击载荷、摩擦力、摩擦系数和温度等进行监测，为刮板输送机的设计、安全预警、健康评价提供技术手段，同时可以为刮板机中部槽的摩擦磨损和疲劳断裂机理研究提供数据基础。

Description

一种刮板输送机中部槽摩擦力监测系统 技术领域
本发明涉及一种刮板输送机中部槽摩擦力监测系统，特别是复杂恶劣运行工况下刮板输送机中部槽摩擦力的多点监测系统，属于刮板输送机测试技术领域。
背景技术
刮板输送机作为煤矿综采工作面关键输送装备，承担着运煤、为采煤机提供运行轨道、为液压支架提供推移支点的重要任务。刮板输送机利用链传动原理，在驱动电机、液力耦合器和减速机驱动下，以刮板链(包括圆环链、刮板和接链器)和中部槽分别作为牵引机构和支撑机构，链轮带动无极闭合的刮板链在中部槽上做连续循环运动，将中部槽上煤炭由机尾处运至机头处卸载。在刮板输送机运行过程中，圆环链直线段与中部槽存在相对运动，同时链轮-圆环链传动多边形效应、满载或超载时频繁开机或停机以及煤壁片帮和煤壁垮落等异常载荷均将导致圆环链-中部槽冲击接触特性以及圆环链的时变动张力特性，因此，圆环链-中部槽的冲击接触和相对运动以及时变动张力的耦合作用导致圆环链-中部槽的摩擦疲劳作用，引发圆环链、中部槽的摩擦磨损和疲劳裂纹扩展，当链环磨损量超限或裂纹扩展到一定程度而无法继续承受动载荷作用将发生断链事故。为此，动态实时监测刮板机运行过程中圆环链、煤炭散料颗粒、中部槽之间的动态接触载荷、摩擦力和摩擦系数等参数，为揭示圆环链和中部槽的摩擦磨损和疲劳断裂机理奠定参数基础，对保障刮板输送机可靠运行、提高综采成套装备开机率、提高大型煤矿生产效率有重要意义。
然而，煤矿综采工作面处于高温、煤粉以及淋水和矿井水等复杂恶劣环境中，且刮板输送机频繁承受煤块掉落的冲击作用，使得各项监测设备不利于布置与维护(例如，不能在圆环链上开口破坏安装传感器或应变测试装置，因圆环链-煤-中部槽以及圆环链-链轮的作用以及无极闭合的刮板链会破坏测量装置，且圆环链破坏会造成圆环链承载能力下降，影响输运能力；如采用非接触式测量装置，因刮板输送机恶劣服役工况会破坏测量装置或阻碍测量等)；同时，开采过程中，如采煤量控制不均，易导致刮板输送机过载现象，甚至会引起溜压死现象，给煤矿的安全生产带来巨大的安全隐患。因此，克服现有的刮板机中部槽监测技术功能性差、缺乏实时性以及不能对刮板机中部槽的摩擦磨损数据进行监测和分析的问题，对了解刮板输送机运行过程中服役工况条件、实时监测圆环链-煤散料-中部槽之间的摩擦信息、揭示圆环链和中部槽失效机理具有重要意义。
中国专利CN104609133A公布了一种用于刮板运输机中部槽中板磨损的检测方法及其检测系统，该方法可实现磨损的监测。然而该方法只能对中部槽是否磨损进行定性监测，并不能对动载或冲击载荷工况下刮板输送机中部槽与煤散料之间的摩擦力进行监测。
中国专利CN106865156A公布了一种刮板输送机中部槽磨损检测装置及其检测系统，该装置可以利用超声波对中部槽进行磨损检测，然而该装置仅仅是通过超声波对中部槽厚度进行监测，从而判断磨损情况，并不能对刮板输送机运行过程中的摩擦力进行监测，并且在井下环境中，由于煤粉的附着，超声波监测中部槽厚度会产生很大的误差。
因此，针对复杂恶劣工况下刮板输送机圆环链-煤散料-中部槽之间摩擦力监测系 统尚未见报道。
发明内容
为了克服背景技术中的问题，本发明提供了一种刮板输送机中部槽摩擦力监测系统，该系统能够在复杂恶劣工况下刮板输送机圆环链-煤散料-中部槽之间冲击载荷、摩擦力、摩擦系数和温度等进行监测的系统，为刮板输送机的设计、安全预警、健康评价提供技术手段，同时可以为刮板机中部槽的摩擦磨损和疲劳断裂机理研究提供数据基础。
本发明的目的是这样实现的：
技术方案：
一种刮板输送机中部槽摩擦力监测系统，所述刮板输送机的每一节中部槽上，以中部槽中心线为基准，沿行进方向等间距的加工有三个贯穿矩形孔，在中部槽的底部加工有未贯穿的线路安装孔，其中，所加工的贯穿矩形孔与线路安装孔连通；
每个贯穿矩形孔内安装有一个矩形受力模块，矩形受力模块与所述贯穿矩形孔形状像匹配，并且，矩形受力模块的上表面与中部槽上表面重合；
三维力传感器，设置在受力模块和中部槽底部之间，每个所述受力模块的上表面设有沉头孔，沉头孔内通过六角螺栓与底部的三维力传感器连接，沉头孔上部设置密封盖，密封盖的上表面与受力模块的上表面重合；
温度传感器，预埋在每个受力模块的内部；
控制器，通过数据采集卡与所述三维力传感器和温度传感器信号连接；
通过这种多点互联监测，实时获取刮板输送机运行过程中部槽的热-力数据，并且根据数据的异常判断出刮板机的故障位置，判断方式如下，
对每组传感装置进行编号，并标记位置，根据三维力传感器所测的切向摩擦力与预埋温度传感器所测的温度数据，若在某一位置处出现数据过大或者过小，根据数据异常组的编号与位置，则系统即可判定刮板输送机在该位置处出现故障；
根据所布置的多个受力模块的监测数据，通过计算机可以实现对刮板机整机承载量、摩擦力、平均摩擦系数以及中部槽摩擦面温度的推算，计算方式如下，
整机摩擦力推算公式：
Figure PCTCN2019120832-appb-000001
其中：
F——整机摩擦力；
n——刮板机节数；
s——每节刮板有效输送面积；
s 1——每块受力模块的面积；
f x1、f x2、f x3——三维力传感器输出的切向摩擦力；
整机承载量推算公式：
Figure PCTCN2019120832-appb-000002
其中：
M——整机承载量；
n——刮板机节数；
s——每节刮板有效输送面积；
s 1——每块受力模块的面积；
F x1、F x2、F x3——传感器输出的正压力。
所述平均摩擦系数推算：
Figure PCTCN2019120832-appb-000003
摩擦面的推算温度为所有预埋温度传感器所测的平均温度。
所述受力模块为与所述中部槽相同材料的矩形钢块。
所述刮板输送机系统包括刮板、双链条、链轮、减速器、电动机以及变频器，其中，变频器与电动机连接，电动机与链轮之间连接有一个减速器，链轮与双链条啮合，双链条的上表面等距安装刮板；
变频器与所述控制器电连接。
有益效果：
本发明能够实时监测刮板输送机中部槽的摩擦状况，使用三维力传感器与预埋式温度传感器，通过这种多点互联监测，可以实时获取刮板输送机运行过程中部槽的热-力数据，通过已编号的传感装置，根据数据的异常点判断出刮板机的故障位置。当刮板机过载或者中部槽摩擦面温度异常时，PLC控制系统控制变频器13，从而使电动机8停止运行。此外，通过推算出的摩擦系数对刮板机的运行进行健康评价，当摩擦系数较大或者其波动范围较大时，表明中部槽的工作状况比较恶劣，需要及时对刮板机中部槽进行检修或者更换，防止工作事故的发生。
另外，通过计算机可以实现对刮板机整机承载量、摩擦力、摩擦系数以及中部槽摩擦面温度的推算，从而建立过载保护系统、实现对刮板机运行健康状况进行评价以及对刮板机中部槽摩擦磨损和疲劳断裂机理研究提供数据基础。
附图说明
图1为本发明试验台的结构示意图；
图2为图1的正视图；
图3为图2中A向断面图；
图4为本发明矩形受力模块和受力模块的连接结构示意图；
图5为本发明的工作原理图；
图6为本发明的测试系统结构示意图；
图中：1.受力模块；2.推移耳；3.刮板；4.双链条；5.中部槽；6.减速器；7.链轮；8.电动机；9.机身；10.沉头孔密封盖；11.温度传感器；12.三维力传感器；13.变频器。
具体实施方式
下面结合附图对本发明作进一步说明。
如图1所示，一种刮板输送机中部槽摩擦力监测系统，包括刮板输送机系统和传感检测系统。刮板输送机系统由机身、中部槽、推移耳、刮板、双链条、链轮、减速器、电动机与变频器组成；传感监测系统由受力模块、三维力传感器、预埋温度传感器组成。
变频器13与电动机8连接，电动机8与链轮7之间连接有一个减速器6，链轮7与双链条4啮合，刮板3等距安装在双链条4上，在每节刮板机中部槽5的中间及两侧共开有三个贯穿矩形孔。
如图2与图3所示，受力模块1在贯穿矩形孔内，上表面与中部槽上表面重合，受力模块1与三维力传感器12连接，三维力传感器12固定在中部槽5底部。
再结合图4所示，传感监测装置由三维力传感器12、预埋温度传感器11与受力模块1组成。预埋温度传感器11安装在受力模块1内部，在受力模块1的上表面有沉头孔，受力模块1在沉头孔内通过六角螺栓与三维力传感器12连接，沉头孔密封盖10连接在沉头孔内，其上表面与受力模块1的上表面重合。
再结合图5与图6所示，通过计算机与PLC控制系统对电动机8进行调节，控制启停，电动机8带动减速器6，减速器6输出与链轮7连接，带动链轮7与双链条链4运转，刮板运输机开始工作。利用预埋温度传感器11监测刮板机运行过程中部槽的温度动态变化，利用三维力传感器12监测刮板机运行过程中的摩擦力动态变化与正压力的动态变化。所测的数据通过由滤波器、A/D转换器、放大器组成的数据采集系统经过滤波、放大、转换传入数据处理系统，经过数据处理后，可以得到刮板输送机运行过程中部槽温度、摩擦力、正压力数据及其随运行时间的动态变化。
在刮板机的每一节上，均沿行进方向开了侧-中-侧三个贯穿矩形孔，用来布置传感监测系统，通过这种多点互联监测，可以实时获取刮板输送机运行过程中部槽的热-力数据，并且可以根据数据的异常判断出刮板机的故障位置。每块受力模块的面积规格为60mm×70mm，根据所布置的多个受力模块的监测数据，通过计算机可以实现对刮板机整机承载量、摩擦力、平均摩擦系数以及中部槽摩擦面温度的推算，计算方式如下。
整机摩擦力推算公式：
Figure PCTCN2019120832-appb-000004
其中：
F——整机摩擦力；
n——刮板机节数；
s——每节刮板有效输送面积；
s 1——每块受力模块的面积；
f x1、f x2、f x3——传感器输出的切向摩擦力。
整机承载量推算公式：
Figure PCTCN2019120832-appb-000005
其中：
M——整机承载量；
n——刮板机节数；
s——每节刮板有效输送面积；
s 1——每块受力模块的面积；
F x1、F x2、F x3——传感器输出的正压力。
平均摩擦系数推算：
Figure PCTCN2019120832-appb-000006
摩擦面的推算温度为所有预埋温度传感器所测的平均温度。
当刮板机过载或者中部槽摩擦面温度异常时，PLC控制系统控制变频器13，从而使电动机8停止运行。此外，通过推算出的摩擦系数对刮板机的运行进行健康评价，当摩擦系数较大或者其波动范围较大时，表明中部槽的工作状况比较恶劣，需要及时对刮板机中部槽进行检修或者更换。
基于数据处理系统推算出的整机承载量、整机摩擦力、摩擦系数、摩擦面温度可以为刮板机中部槽与煤散料的磨粒磨损研究提供数据基础。

Claims (4)

  1. 一种刮板输送机中部槽摩擦力监测系统，其特征在于，所述刮板输送机的每一节中部槽上，以中部槽中心线为基准，沿行进方向等间距的加工有三个贯穿矩形孔，在中部槽的底部加工有未贯穿的线路安装孔，其中，所加工的贯穿矩形孔与线路安装孔连通；
    每个贯穿矩形孔内安装有一个矩形受力模块，矩形受力模块与所述贯穿矩形孔形状像匹配，并且，矩形受力模块的上表面与中部槽上表面重合；
    三维力传感器，设置在受力模块和中部槽底部之间，每个所述受力模块的上表面设有沉头孔，沉头孔内通过六角螺栓与底部的三维力传感器连接，沉头孔上部设置密封盖，密封盖的上表面与受力模块的上表面重合；
    温度传感器，预埋在每个受力模块的内部；
    控制器，通过数据采集卡与所述三维力传感器和温度传感器信号连接；
    通过这种多点互联监测，实时获取刮板输送机运行过程中部槽的热-力数据，并且根据数据的异常判断出刮板机的故障位置，判断方式如下，
    对每组传感装置进行编号，并标记位置，根据三维力传感器所测的切向摩擦力与预埋温度传感器所测的温度数据，若在某一位置处出现数据过大或者过小，根据数据异常组的编号与位置，则系统即可判定刮板输送机在该位置处出现故障；
    根据所布置的多个受力模块的监测数据，通过计算机可以实现对刮板机整机承载量、摩擦力、平均摩擦系数以及中部槽摩擦面温度的推算，计算方式如下，
    整机摩擦力推算公式：
    Figure PCTCN2019120832-appb-100001
    其中：
    F——整机摩擦力；
    n——刮板机节数；
    s——每节刮板有效输送面积；
    s 1——每块受力模块的面积；
    f x1、f x2、f x3——三维力传感器输出的切向摩擦力；
    整机承载量推算公式：
    Figure PCTCN2019120832-appb-100002
    其中：
    M——整机承载量；
    n——刮板机节数；
    s——每节刮板有效输送面积；
    s 1——每块受力模块的面积；
    F x1、F x2、F x3——传感器输出的正压力。
  2. 根据权利要求1所述的刮板输送机中部槽摩擦力监测系统，其特征在于，所述平均摩擦系数推算：
    Figure PCTCN2019120832-appb-100003
    摩擦面的推算温度为所有预埋温度传感器所测的平均温度。
  3. 根据权利要求1所述的刮板输送机中部槽摩擦力监测系统，其特征在于，所述受力模块为与所述中部槽相同材料的矩形钢块。
  4. 根据权利要求1所述的刮板输送机中部槽摩擦力监测系统，其特征在于，所述刮板输送机系统包括刮板、双链条、链轮、减速器、电动机以及变频器，其中，变频器与电动机连接，电动机与链轮之间连接有一个减速器，链轮与双链条啮合，双链条的上表面等距安装刮板；
    变频器与所述控制器电连接。
PCT/CN2019/120832 2019-03-07 2019-11-26 一种刮板输送机中部槽摩擦力监测系统 Ceased WO2020177405A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/418,853 US11440740B2 (en) 2019-03-07 2019-11-26 Frictional force monitoring system for middle troughs of scraper conveyor
RU2021117305A RU2759555C1 (ru) 2019-03-07 2019-11-26 Система мониторинга силы трения для срединных желобов скребкового конвейера
AU2019433040A AU2019433040B2 (en) 2019-03-07 2019-11-26 Frictional force monitoring system for middle troughs of scraper conveyor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910170855.1A CN110040467B (zh) 2019-03-07 2019-03-07 一种刮板输送机中部槽摩擦力监测系统
CN201910170855.1 2019-03-07

Publications (1)

Publication Number Publication Date
WO2020177405A1 true WO2020177405A1 (zh) 2020-09-10

Family

ID=67274588

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/120832 Ceased WO2020177405A1 (zh) 2019-03-07 2019-11-26 一种刮板输送机中部槽摩擦力监测系统

Country Status (5)

Country Link
US (1) US11440740B2 (zh)
CN (1) CN110040467B (zh)
AU (1) AU2019433040B2 (zh)
RU (1) RU2759555C1 (zh)
WO (1) WO2020177405A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113420403A (zh) * 2021-03-24 2021-09-21 太原理工大学 一种液压支架与刮板输送机的推移机构运动规划方法
US11866267B2 (en) 2021-12-23 2024-01-09 Metso Outotec USA Inc. System and method for monitoring an apron feeder

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040467B (zh) 2019-03-07 2021-03-16 中国矿业大学 一种刮板输送机中部槽摩擦力监测系统
CN110764160B (zh) * 2019-11-14 2025-03-21 哈尔滨联科自动化技术开发有限公司 上袋成功正压检测装置及检测方法
CN113148549A (zh) * 2021-05-25 2021-07-23 威世诺智能科技(青岛)有限公司 基于刮板输送机中部槽采空区侧采集多元信息的感知方法
CN113959884A (zh) * 2021-11-18 2022-01-21 中煤张家口煤矿机械有限责任公司 一种煤炭采运用槽板性能台架试验装置
CN114348829B (zh) * 2022-01-12 2022-09-23 南通兴华达高实业有限公司 一种电梯补偿链焊接缺陷在线检测设备及方法
CN117142010B (zh) * 2023-08-21 2024-12-10 中国矿业大学 煤矿固体充填刮板输送机工况智能识别与自主调控方法
CN118953989B (zh) * 2024-09-13 2026-02-06 湖北天宜机械股份有限公司 一种埋刮板输送机
CN118992462B (zh) * 2024-10-24 2024-12-20 山西榕行智能科技有限公司 基于双目视觉的煤矿运输皮带撕裂检测方法、装置及系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2051850C1 (ru) * 1993-05-12 1996-01-10 Юрий яковлевич Курлов Рештак скребкового конвейера
JP2001026313A (ja) * 1999-07-15 2001-01-30 Central Conveyor Kk スクレーパコンベヤ方法とその装置
CN106865156A (zh) * 2017-04-05 2017-06-20 江先庆 一种刮板输送机中部槽磨损检测装置及其检测方法
CN106931870A (zh) * 2017-04-07 2017-07-07 中国矿业大学 一种刮板输送机中部槽磨损检测装置及方法
CN107082228A (zh) * 2017-05-26 2017-08-22 中国矿业大学 一种刮板输送机自检测中部槽装置及检测方法
CN107202706A (zh) * 2017-06-07 2017-09-26 中国矿业大学 一种可模拟运煤工况的刮板机摩擦阻力试验装置及方法
CN110040467A (zh) * 2019-03-07 2019-07-23 中国矿业大学 一种刮板输送机中部槽摩擦力监测系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722218A (en) * 1986-09-22 1988-02-02 The Goodyear Tire & Rubber Company Device for measurement of coefficient of friction
US20160041086A1 (en) * 2014-08-07 2016-02-11 Innovative Cleaning Equipment, Inc. Lubrication control system and related method of use
CN104444227A (zh) * 2014-09-30 2015-03-25 宁夏天地奔牛实业集团有限公司 采煤工作面刮板输送机断链的监测装置和方法
CN104609133B (zh) 2015-01-24 2017-01-11 山东科技大学 一种用于刮板运输机中部槽中板磨损的检测系统及其检测方法
CN105928653A (zh) * 2016-05-17 2016-09-07 中国矿业大学 一种刮板输送机链条张力监测装置及方法
CN106404570B (zh) * 2016-09-26 2019-01-01 中国矿业大学 振动冲击下重载刮板输送机链轮摩擦疲劳监测装置及方法
CN206955047U (zh) * 2017-05-26 2018-02-02 中国矿业大学 一种刮板输送机自检测中部槽装置
CN207147793U (zh) * 2017-06-07 2018-03-27 中国矿业大学 一种可模拟运煤工况的刮板机摩擦阻力试验装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2051850C1 (ru) * 1993-05-12 1996-01-10 Юрий яковлевич Курлов Рештак скребкового конвейера
JP2001026313A (ja) * 1999-07-15 2001-01-30 Central Conveyor Kk スクレーパコンベヤ方法とその装置
CN106865156A (zh) * 2017-04-05 2017-06-20 江先庆 一种刮板输送机中部槽磨损检测装置及其检测方法
CN106931870A (zh) * 2017-04-07 2017-07-07 中国矿业大学 一种刮板输送机中部槽磨损检测装置及方法
CN107082228A (zh) * 2017-05-26 2017-08-22 中国矿业大学 一种刮板输送机自检测中部槽装置及检测方法
CN107202706A (zh) * 2017-06-07 2017-09-26 中国矿业大学 一种可模拟运煤工况的刮板机摩擦阻力试验装置及方法
CN110040467A (zh) * 2019-03-07 2019-07-23 中国矿业大学 一种刮板输送机中部槽摩擦力监测系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113420403A (zh) * 2021-03-24 2021-09-21 太原理工大学 一种液压支架与刮板输送机的推移机构运动规划方法
US11866267B2 (en) 2021-12-23 2024-01-09 Metso Outotec USA Inc. System and method for monitoring an apron feeder

Also Published As

Publication number Publication date
US11440740B2 (en) 2022-09-13
CN110040467B (zh) 2021-03-16
CN110040467A (zh) 2019-07-23
AU2019433040B2 (en) 2022-12-15
RU2759555C1 (ru) 2021-11-15
AU2019433040A1 (en) 2021-06-24
US20220073283A1 (en) 2022-03-10

Similar Documents

Publication Publication Date Title
AU2019433040B2 (en) Frictional force monitoring system for middle troughs of scraper conveyor
US10065804B1 (en) Chain fault diagnosis system and method for scraper conveyor
CN104229427B (zh) 一种刮板输送机断链检测方法
CN107777288B (zh) 一种刮板输送机断链实时监测系统及监测方法
CN112623631B (zh) 一种刮板运输机链条寿命预测及断链位置判别方法
CN210794762U (zh) 一种新型刮板输送机断链监测装置
CN104444227A (zh) 采煤工作面刮板输送机断链的监测装置和方法
WO2017197876A1 (zh) 一种刮板输送机链轮轮齿磨损监测装置和方法
CN106404570A (zh) 振动冲击下重载刮板输送机链轮摩擦疲劳监测装置及方法
CN110068514A (zh) 重载刮板输送机圆环链的拉扭复合疲劳测试装置及其测试方法
WO2020228139A1 (zh) 一种刮板输送机传动装置故障监测预警系统及方法
CN109625791B (zh) 具有张力监测功能的刮板输送机
Al-Kahwati et al. Condition Monitoring of Rollers in Belt Conveyor Systems★.
CN202346627U (zh) 起重机纠偏装置
CN104291086A (zh) 一种用于变频驱动型刮板输送机控制系统
CN106931870A (zh) 一种刮板输送机中部槽磨损检测装置及方法
CN203259853U (zh) 一种煤炭分选机输送链综合监控装置
CN107215620B (zh) 一种刮板输送机自动检测系统
CN108657730B (zh) 一种用于带式输送机实时断带监测的装置及方法
CN121521319A (zh) 刮板输送机的链传动张力检测装置及方法
CN203199603U (zh) 皮带防撕裂监控装置
CN223021150U (zh) 一种皮带厚度专用测量工具
CN209618220U (zh) 一种燃煤锅炉输渣斗提机断链监测装置
CN214371684U (zh) 一种烧结机台车轮故障检测装置
CN220663913U (zh) 一种刮板链条浮链监测装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19917595

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019433040

Country of ref document: AU

Date of ref document: 20191126

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19917595

Country of ref document: EP

Kind code of ref document: A1