WO2020199295A1 - 一种模拟煤岩体截割产尘的仿真实验系统及实验方法 - Google Patents

一种模拟煤岩体截割产尘的仿真实验系统及实验方法 Download PDF

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WO2020199295A1
WO2020199295A1 PCT/CN2019/084938 CN2019084938W WO2020199295A1 WO 2020199295 A1 WO2020199295 A1 WO 2020199295A1 CN 2019084938 W CN2019084938 W CN 2019084938W WO 2020199295 A1 WO2020199295 A1 WO 2020199295A1
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coal
cutting
dust
rock mass
platform
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French (fr)
Inventor
周刚
张清涛
王世聪
孙彪
徐翠翠
胡莹莹
丁建飞
张国宝
高丹红
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/50—Systems of measurement based on relative movement of target
    • G01S17/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0227—Investigating particle size or size distribution by optical means using imaging; using holography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1434—Optical arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
    • G01N15/1459—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/075—Investigating concentration of particle suspensions by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N2013/003—Diffusion; diffusivity between liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0042—Investigating dispersion of solids
    • G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N2015/1493—Particle size
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0053—Cutting or drilling tools
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/0244—Tests performed "in situ" or after "in situ" use
    • G01N2203/0246—Special simulation of "in situ" conditions, scale models or dummies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration

Definitions

  • the invention belongs to the technical field of simulation and simulation of coal and rock mass cutting and dust generation, and specifically relates to a simulation experiment system for simulating coal and rock mass cutting and dust generation.
  • the total dust concentration can be as high as 3000mg/m 3 ⁇ 10000mg/m 3 , among which the respiratory dust concentration can be as high as 1500mg/m 3 ⁇ 4000mg/m 3 , which greatly exceeds the highest total dust concentration in the "Coal Mine Safety Regulations"
  • the requirement of 4mg/m 3 and the highest dust concentration of 2.5mg/m 3 seriously affects the life and health of the operators, and also poses a serious threat to the safety of mine production.
  • the cutting of coal and rock mass by picks is the first source of dust production underground, accounting for about 60% of the total dust volume.
  • the purpose of the present invention is to provide a simulation experimental system and an experimental method for simulating coal and rock mass cutting and dust production.
  • the experimental system can carry out different types of coal and rock masses subjected to different ground stresses and different picks in the mining work.
  • a simulation experiment system for simulating coal and rock mass cutting and dust production which comprises an experiment platform, on which a cutting experiment platform is placed, and the cutting experiment platform is provided with coal samples and randomly distributed Load loading device, traction speed loading device, realization device of various restraints, drum speed control device and pick switching device, mechanics monitoring device and dust monitoring device.
  • the experimental system controls each subsystem through the central control system to complete the experimental requirements ;
  • the loading device for randomly distributed loads is located on the adjacent side of the coal sample, and the central control system controls the structural sheet to load the coal sample with different mechanics to generate different mechanical loading parameters;
  • the traction speed loading device is used to provide traction to the experimental platform, and the traction speed loading device is controlled by a central control system to ensure that it is consistent with the on-site working speed;
  • the realization devices of various restraint modes mainly include a horizontal movement platform, a longitudinal movement platform and a fixing device.
  • the horizontal movement platform provides a horizontal movement channel for the entire experimental platform, so that the pick can move laterally while receiving traction.
  • the longitudinal moving platform imitates the lifting device of the shearer drum, selects the descending distance in the man-machine interchange interface, and transmits the signal to the central control system.
  • the central control system is used to control the motor to drive the wire rope to move, so that the pick is fixed at the end It can move up and down to simulate the up and down coal cutting mode of the shearer;
  • the drum rotation speed control device includes a stepless transmission, the stepless transmission is located above the longitudinal lifting platform, and is used to control the rotation speed of the drum;
  • the pick switching device includes a drum pick, a fixed end of the pick, a motor and a wire rope, and the drum pick is located on the adjacent side of the coal sample;
  • the experimental platform is also equipped with a mechanical monitoring device and a dust monitoring device, and the mechanical monitoring device is used to monitor the changes in the three-dimensional force generated by the coal and rock mass when subjected to the shearing force; the dust monitoring device It is used to monitor the dust generated in the cutting process of coal and rock mass.
  • the above-mentioned dust monitoring device includes a high-speed camera and a phase Doppler interferometer.
  • the diffusion process of dust is captured by a high-definition camera, and the speed, concentration and particle size of the dust are tested by the phase Doppler interferometer. .
  • the above-mentioned experimental platform is provided with a cuboid shell, and the above-mentioned cuboid shell is provided with a circular vent for gas exchange with the outside.
  • roller picks include two forms of a shuttlecock shape and a chisel shape, and the arrangement sequence includes a sequential type and a cross type.
  • the length, width, and height of the above-mentioned rectangular parallelepiped shell are respectively 2000 mm, 1200 mm, and 1000 mm, and the diameter of the above-mentioned circular vent is 200 mm.
  • Another task of the present invention is to provide the above-mentioned experimental method of a simulation experimental system for simulating coal and rock mass cutting and dust generation, which includes the following steps:
  • the traction speed loading device is used to provide traction for the experimental platform.
  • the central control system transmits signals to the integrated transmission to control the traction through analysis and calculation;
  • the horizontal movement platform provides a lateral movement channel for the entire experimental platform, so that the pick It can move horizontally while traction.
  • the vertical moving platform imitates the lifting device of the shearer drum, so that the drum can choose different coal cutting methods to achieve the maximum coal mining rate;
  • the cutting speed of the pick is provided by the drum speed control device, and the central control system controls the relative rotation speed of the driving pulley shaft and the driven pulley shaft inside the stepless transmission to control the drum speed, thereby effectively cutting coal Rock mass
  • the invention provides a simulation experiment system for simulating coal and rock mass cutting and dust production, which includes a loading device with arbitrary distributed loads, a traction speed loading device, a device for realizing various restraint modes, a drum speed control device, a pick switching device, Mechanical monitoring system, dust monitoring device, the experimental system controls each subsystem through the central control system to complete the experimental requirements.
  • the coal sample is mechanically loaded under different stress conditions with a loading device of arbitrary load to obtain the coal body deformation and failure law in the presence of in-situ stress; the mechanical monitoring system is used to monitor the pick cutting mechanics test, and the results are obtained under arbitrary conditions
  • the mechanical parameters of the machine use the pick switching device to perform different combinations of pick shape and sorting, determine the dust generation of the picks in different combinations of cutting coal and rock mass, and use the high-speed camera and laser Doppler to measure the dust movement separately With the speed, concentration and particle size of the dust, master the law of dust migration in fully mechanized mining work, and provide theoretical and data support for reducing the dust concentration of fully mechanized coal mining face.
  • the experimental platform uses a manual remote control system to switch working conditions, namely, two different working conditions of ventilation and closed; the main control system controls the traction speed through the integrated transmission to provide different traction speeds for the picks; the roller picks can be arranged in different sequences
  • the transformation of different shapes can be controlled by the man-machine interchange interface.
  • the picks can choose the shape of a shuttlecock and a chisel.
  • the arrangement sequence includes sequential and cross-type.
  • the tunneling cutting head and coal mining can be manually switched
  • the machine drum performs cutting.
  • the main control system loads stress on the coal body through the mechanical loading device to simulate the underground ground stress environment.
  • the force of the pick is detected by the three-way force sensor and transmitted to the central control system.
  • the central control system obtains different parameter changes through data collection and analysis; the process of generating dust can be captured by a high-speed camera , And use laser Doppler to detect the concentration, particle size and velocity of dust, analyze the distribution characteristics of different sizes of dust particle size, which can effectively realize the simulation of coal and rock mass cutting dust generation, and at the same time, build a scientific and reasonable Provide guidance on cutting models, mine dust prediction, etc., and provide theoretical and data support for mine dust prevention.
  • Fig. 1 is a schematic diagram of a simulation experiment system for simulating dust production by cutting coal and rock mass according to the present invention
  • Fig. 2 is a front view of a simulation experiment system for simulating dust production by cutting coal and rock mass according to the present invention
  • Figure 3 is a schematic diagram of the arrangement sequence of picks of the present invention.
  • Figure 4 shows a pick-type pick
  • Figure 5 is a knife-shaped pick
  • Figure 6 is an overall diagram of the experimental device of the present invention.
  • 1-cutting test bench 2-integrated transmission; 3-longitudinal lifting table; 4-stepless transmission; 5-picks; 6-octagonal ring dynamometer; 7-drum; 8-coal sample; 9-Baffle plate; 10-High-speed camera; 11-Tripod; 12-Fixed device; 13-Transverse moving platform; 14-Phase Doppler interferometer; 15-Mechanical loading device; 16-Platform housing; 17-Three-way force Sensor; 18-two-way column.
  • the present invention proposes a simulation experimental system and experimental method for simulating coal and rock mass cutting and dust production.
  • the present invention will be described in detail below with reference to specific embodiments.
  • the present invention is a simulation experiment system for simulating coal and rock mass cutting and dust production, including a loading device with arbitrary distributed loads, a traction speed loading device, a device for realizing various restraints, and a drum speed control Device, pick switching device, mechanics monitoring system, dust monitoring device.
  • the cutting experiment platform 1 is placed on the experiment platform, the coal sample 8 is placed on the cutting experiment platform 1, and the periphery of the coal sample 8 is provided with a baffle 9.
  • the experimental platform can be switched by a manual remote control system to switch working conditions, namely There are two different conditions for ventilation and sealing; the central processing unit controls the traction speed through the integrated transmission 2 to provide different traction speeds for the pick 5; the drum picks can be changed in different arrangements and different shapes, and the interface can be exchanged between man and machine
  • the pick 5 can choose a shuttlecock shape and a chisel shape, and the arrangement sequence includes sequential and cross-type. According to the different working space in the underground, the tunneling cutting head and the shearer drum can be manually switched for cutting.
  • the pick force is detected by the three-way force sensor 17 and transmitted to the central processing system to obtain different parameter changes; the process of generating dust can be captured by the high-speed camera 10, and a tripod is placed under the high-speed camera 10 11.
  • the laser Doppler detects the concentration, particle size and speed of dust, which can effectively realize the simulation and simulation of coal and rock mass cutting dust.
  • the above steps also specifically include: the experimental platform can be switched by the manual remote control system to switch working conditions, that is, ventilation and enclosed two different conditions; the loading device with any distributed load can generate different mechanical loading parameters to simulate coal under ground stress conditions The deformation and failure law can change the three-dimensional force of the coal and rock mass in the process of stress, and determine the optimal force range of the coal and rock mass; the traction speed loading device mainly provides traction for the platform, and the central control system analyzes and calculates The signal is transmitted to the integrated transmission to control the size of the traction; the realization devices of various restraint methods mainly include a horizontal movement platform, a longitudinal movement platform and a fixed device 12.
  • the horizontal movement platform 13 provides a horizontal movement channel for the entire experimental platform, so that the pick It can move horizontally while receiving traction force.
  • a bidirectional column 18 is set above the horizontal moving platform 13.
  • the vertical moving platform imitates the lifting device of the shearer drum, so that the drum 7 can choose different coal cutting methods to achieve the maximum coal mining rate.
  • the vertical moving platform Including the vertical lifting platform 3, the fixing device is a device for fixing the coal and rock mass, which can effectively ensure the stable state of the coal and rock mass before cutting;
  • the drum speed control device mainly provides the cutting speed of the pick, which is controlled by the central control system
  • the relative rotation speed of the driving pulley shaft and the driven pulley shaft inside the stepless transmission 4 controls the rotation speed of the drum to control the rotation speed of the drum, effectively cutting coal and rock;
  • the drum picks can be changed in different arrangements and shapes, which can be changed by people.
  • the machine is controlled by the interchange interface.
  • the selection of picks mainly includes two forms of dart-shaped and chisel-shaped.
  • the arrangement sequence includes sequential and cross-cutting. According to the requirements of cutting experiments, different forms of combined cutting are carried out.
  • the heading cutting head and the shearer drum can be manually switched for cutting; in the process of cutting the coal and rock mass by the pick, the coal and rock mass is subjected to the shearing force, which produces three-way force changes, which can be monitored by mechanics
  • the system monitors; the dust generated during the cutting of the pick is monitored by the dust monitoring device.
  • the high-speed camera captures the dust diffusion process.
  • the phase Doppler interferometer 14 is used to test the speed, concentration, and particle size of the dust, which can effectively realize the simulation and simulation of dust production by cutting coal and rock mass, and provide theoretical and data support for dust reduction.
  • the above steps also specifically include: the outside of the experimental platform is made of phenolic resin.
  • the platform housing 16 is designed to have a length, width and height of 2000mm ⁇ 1200mm ⁇ 1000mm, and a round vent with a diameter of 200mm on the side of the housing. Another vent is provided on the shell on the opposite side of the circular vent to achieve the purpose of exchanging with outside air.
  • the switch is switched according to the experimental requirements and is controlled by an electric motor. When the motor is running, the controller will receive pulses from the pulser input signal, and the window will rise. When the motor stops, the pulser no longer generates a pulse signal. The pulser input is controlled After the sensor is sensed, the voltage is no longer sent to the power window motor. It is equipped with an automatic door to replace the inspection equipment.
  • the human body is identified by an induction detector.
  • the motor control belt When the distance from the door is 100mm, the motor control belt will open the door. When the distance is 100mm away, The door will be closed automatically; the loading device with any distributed load can generate different mechanical loading parameters, and arbitrarily change the three-way force in the cutting process of the pick.
  • different coal types receive different forces, which can be loaded by load , Can realize the mechanical distribution measurement of different coal types.
  • the traction speed loading device mainly provides traction for the experimental platform.
  • the speed is selected through the remote control system.
  • the central processing unit receives the signal and performs calculation processing, and transmits the processed signal to the integrated transmission. After the integrated transmission receives the signal, when the speed is relatively fixed
  • a fixed transmission ratio is selected, and the speed is changed by gear rotation.
  • the speed fluctuates, the speed can be changed by stepless hydraulic, and the transmission ratio can be continuously changed within a certain range; various constraints
  • the realization device of the method mainly includes a horizontal moving platform, a vertical moving platform and a fixed device.
  • the horizontal moving platform provides a horizontal moving channel for the entire experimental platform, so that the pick can move horizontally while receiving traction.
  • the vertical moving platform imitates the shearer drum
  • the lifting device selects the descending distance in the human-machine interchange interface and transmits the signal to the central processing system.
  • the central processing system drives the wire rope to move by controlling the motor, so that the fixed end of the pick can move up and down, simulating the up and down cutting of the shearer
  • the coal method reaches the maximum coal mining rate.
  • the fixing device uses an electric telescopic frame to fix the coal and rock mass. When the pick starts cutting, the electric telescopic frame is automatically fixed, which effectively guarantees the stable state of the coal and rock mass before cutting. .
  • the above steps also specifically include: the drum speed control device mainly controls the drum speed.
  • the central controller controls the transmission belt and working diameter of the mechanical continuously variable transmission to change the coordination of the master and driven wheels to transmit Power, can realize the continuous change of the transmission ratio, so as to obtain the best match between the transmission system and the engine working conditions;
  • the selection of the picks is selected by the man-machine interface, and the picks can be divided into two forms: shuttle type and chisel type. ,
  • the arrangement order can be divided into sequential type and cross type, and the size and number of picks can also be selected.
  • different coordinated cutting can be carried out.
  • the tunneling cutting can be manually switched Head and shearer drum for cutting.
  • the mechanics monitoring system mainly uses the three-way force sensor and the octagonal ring dynamometer 6 to determine the mechanical parameters.
  • the pick and the coal and rock mass will be subjected to three-dimensional force due to the shearing action.
  • Connect the octagonal ring dynamometer to the fixed end of the pick, and install a three-way force sensor at the coal and rock mass fixing device to test the force of the pick and the coal and rock mass during the cutting process; in the cutting process
  • the dust monitoring device is used to test the diffusion trajectory, speed, concentration, and particle size of the generated dust.
  • the high-speed camera monitors the diffusion of dust. When the dust is full of space, the speed, concentration, and particle size of the dust are tested by the phase Doppler interferometer, which effectively realizes the simulation of the dust produced by cutting coal and rock mass, and provides theoretical and data support for dust reduction.
  • the experimental platform can be operated by a manual remote control system to switch working conditions, namely, ventilation and closed conditions; the mechanical loading device 15 with arbitrary distributed load can generate different mechanical loading parameters, and change the coal and rock mass
  • the three-dimensional force in the force process determines the optimal force range of the coal and rock mass;
  • the traction speed loading device mainly provides traction for the platform, and the central control system transmits the signal to the integrated transmission 2 to control the traction force through analysis and calculation;
  • the realization devices of various restraint modes mainly include a horizontal moving platform 13, a vertical lifting platform 3 and a fixing device 12.
  • the horizontal moving platform 13 provides a horizontal movement channel for the entire experimental platform, so that the pick 5 can move laterally while receiving traction.
  • the longitudinal moving platform 2 imitates the lifting device of the shearer drum 7, so that the drum 7 can choose different cutting methods to achieve the maximum coal mining rate.
  • the fixing device 12 is a device for fixing the coal and rock mass, which can effectively ensure that the coal is not cut.
  • the previous stable state of the coal and rock mass; the drum speed control device mainly provides the cutting speed of the pick 5, and the central control system controls the stepless transmission 4 to control the drum speed, effectively cutting the coal and rock mass; the drum pick 5 can perform
  • the change of different arrangement order and different shape can be controlled by the man-machine interchange interface.
  • the choice of picks mainly has two forms of dart shape and chisel shape.
  • the arrangement order includes sequential and crossed.
  • the tunneling cutting head and the shearer drum 7 can be manually switched for cutting; in the process of cutting the coal and rock mass by the pick, the coal and rock mass is subjected to shearing force , The changes in the three-way force can be monitored by the mechanical monitoring system; during the cutting process of the pick, the dust generated is monitored by the dust monitoring device, and the high-speed camera 10 Photograph the diffusion process of dust.
  • the speed, concentration and particle size of the dust are tested by the phase Doppler interferometer 14, which effectively realizes the simulation of coal and rock mass cutting and dust generation, and provides theory and data for dust reduction support.
  • the outside of the experimental platform is made of phenolic resin.
  • the platform housing 16 is designed to have a length, width, and height of 2000mm ⁇ 1200mm ⁇ 1000mm, and a round vent with a diameter of 200mm on the side of the housing.
  • the switch is required to be switched and controlled by an electric motor.
  • the controller When the motor is running, the controller will receive pulses from the pulser input signal, and the window will rise.
  • the pulser will no longer generate pulse signals, and the controller at the pulser input will sense After being measured, the voltage is no longer sent to the power window motor.
  • It is equipped with an automatic door to replace the inspection equipment. It is regulated by an automatic sensor device.
  • the human body is identified by an induction detector.
  • the motor control belt When the distance from the door is 100mm, the motor control belt opens the door. When the distance is 100mm away, the door will It will automatically shut down; the loading device 15 with any distributed load can generate different mechanical loading parameters, and arbitrarily change the three-way force in the cutting process of the pick. During the cutting process, different coal types receive different forces, which can be loaded by load , It can realize the measurement of the mechanical distribution of different coal types.
  • the drum speed control device mainly controls the speed of the drum 7.
  • the central controller controls the transmission belt and working diameter of the mechanical continuously variable transmission 4 to change the main, The driven wheel cooperates to transmit power, which can realize the continuous change of the transmission ratio, thereby obtaining the best match between the transmission system and the engine operating conditions.
  • the selection of the pick 5 is selected by the man-machine interface.
  • the pick can be divided into two forms: dart shape and chisel shape.
  • the cutting type it is divided into knife-type pick and Pick-type picks can be arranged in sequence and cross, and the size and number of picks can also be selected. According to the needs of the experiment, different cuttings can be carried out. According to the different working spaces in the well, it can be manually Switch the tunneling cutting head and the shearer drum to cut.

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Abstract

一种模拟煤岩体截割产尘的仿真实验系统及实验方法。实验系统包括实验平台，实验平台上放置有截割实验台（1），其上设置有煤块试样（8）、任意分布载荷的加载装置（15）、牵引速度加载装置（2）、各种约束方式的实现装置、滚筒（7）转速控制装置及截齿（5）切换装置，力学监测装置及粉尘监测装置，实验系统通过中央控制系统控制各个子系统完成实验要求。实验系统能够实现对井下采煤工作面和掘进工作面截割产尘的仿真模拟分析，可以开展不同煤种的煤岩体在采掘工作中受不同地应力、不同截齿截割破坏产尘的仿真模拟、开展截齿在截割过程中的力学分析、开展不同截齿类型在截割过程中对粉尘浓度、粒径、速度及微观特性影响的研究等，为矿井采掘工作面粉尘防治提供理论和技术支持。

Description

一种模拟煤岩体截割产尘的仿真实验系统及实验方法 技术领域
本发明属于煤岩体截割产尘仿真模拟技术领域，具体涉及一种模拟煤岩体截割产尘的仿真实验系统。
背景技术
目前，我国是世界上最大的煤炭生产国和消费国，这是由我国富煤、少气、缺油的资源条件所决定的，煤炭资源是我国主要消费能源，约占一次能源消费总量的60％以上，随着煤矿机械化、自动化程度的不断提高，采掘工作面作业空间产尘量不断增大。采掘作业过程中总尘浓度最高可至3000mg/m 3～10000mg/m 3，其中呼尘浓度最高可至1500mg/m 3～4000mg/m 3，大大超过《煤矿安全规程》中的总尘浓度最高4mg/m 3，呼尘浓度最高2.5mg/m 3的要求，严重影响着操作工的生命健康，同时也对矿井安全生产构成了严重威胁。在采掘作业中，截齿截割煤岩体是井下第一产尘源，约占全尘量的60％左右。
采掘工作面截割产尘在国内外的研究和报道较少，而在实际生产过程中，影响煤岩体受截割产尘的因素较多。
发明概述
技术问题
问题的解决方案
技术解决方案
本发明的目的在于提供一种模拟煤岩体截割产尘的仿真实验系统及实验方法，该实验系统可以开展不同煤种的煤岩体在采掘工作中受不同地应力、不同截齿截割破坏产尘的仿真模拟、开展截齿在截割过程中的力学分析、开展不同截齿类型在截割过程中对粉尘浓度、粒径、速度及微观特性影响的研究、开展煤岩体受截齿截割产尘的机理研究、开展通风与封闭条件下截割粉尘的分布及运移研究等，为矿井采掘工作面粉尘防治提供理论和技术支持。
其技术解决方案包括：
一种模拟煤岩体截割产尘的仿真实验系统，其包括实验平台，所述的实验平台上放置有截割实验台，所述的截割实验台上设置有煤块试样、任意分布载荷的加载装置、牵引速度加载装置、各种约束方式的实现装置、滚筒转速控制装置及截齿切换装置，力学监测装置及粉尘监测装置，该实验系统通过中央控制系统控制各个子系统完成实验要求；
所述的任意分布载荷的加载装置位于所述煤块试样的相邻侧，中央控制系统控制结构薄片对所述煤块试样进行不同力学的加载，以产生不同的力学加载参数；
所述的牵引速度加载装置用于向所述实验平台提供牵引力，所述的牵引速度加载装置通过中央控制系统对其进行控制，确保与现场工作速度一致；
各种约束方式的实现装置主要包括横向移动平台、纵向移动平台和固定装置，所述的横向移动平台为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可横向移动，所述纵向移动平台模仿采煤机滚筒的升降装置，在人机互换界面选择下降距离，并将信号传递给中央控制系统，所述的中央控制系统用于控制电动机带动钢丝绳移动，使得截齿固定端可以上下移动，模拟采煤机上下行割煤方式；
所述的滚筒转速控制装置包括无极变速器，所述的无极变速器位于所述纵向升降台上方，用于控制滚筒的转速；
所述的截齿切换装置包括滚筒截齿、截齿固定端、电动机和钢丝绳，所述的滚筒截齿位于所述煤块试样的相邻侧；
所述的实验平台还配置有力学监测装置和粉尘监测装置，所述的力学监测装置用于监测煤岩体在受到剪切力的作用时产生的三向力的变化；所述的粉尘监测装置用于监测煤岩体在截割过程中产生的粉尘。
作为本发明的一个优选方案，上述的粉尘监测装置包括高速摄像机和相位多普勒干涉仪，通过高清摄像机拍摄粉尘的扩散过程，通过相位多普勒干涉仪对粉尘的速度、浓度及粒度进行测试。
作为本发明的另一个优选方案，上述的实验平台上设置有一长方体外壳，上述的长方体外壳上设置有与外界进行气体交换的圆形通风口。
进一步的，上述的滚筒截齿包括梭镖形和凿子形两种形式，排列顺序包括顺序式和交叉式。
进一步的，上述的长方体外壳的长、宽、高分别为2000mm、1200mm、1000mm，上述的圆形通风口的直径为200mm。
本发明的另一任务在于提供上述一种模拟煤岩体截割产尘的仿真实验系统的实验方法，其包括如下步骤：
a通过所述任意分布载荷的加载装置产生不同的力学加载参数，改变煤块试样在受力过程中的三向力大小，确定煤岩体的最佳受力范围；
b通过牵引速度加载装置为实验平台提供牵引力，中央控制系统通过分析计算，将信号传递给综合变速器进行控制牵引力的大小；通过横向移动平台为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可以横向移动，通过纵向移动平台模仿采煤机滚筒的升降装置，使得滚筒可选择不同的割煤方式，达到最大采煤率；
c通过所述的滚筒转速控制装置提供截齿的截割速度，由中央控制系统控制无极变速器内部主动带轮轴和从动带轮轴的相对转动速度来控制滚筒的转速，从而进行有效的截割煤岩体；
d通过粉尘监测装置对粉尘的速度、浓度、粒度进行测试，有效实现煤岩体截割产尘的仿真模拟。
发明的有益效果
有益效果
与现有技术相比，本发明带来了以下有益技术效果：
本发明提供的一种模拟煤岩体截割产尘的仿真实验系统，包括任意分布载荷的加载装置、牵引速度加载装置、各种约束方式的实现装置、滚筒转速控制装置、截齿切换装置、力学监测系统、粉尘监测装置，该实验系统通过中央控制系统控制各个子系统完成实验要求。利用任意载荷的加载装置对煤体试样进行不同应力条件下的力学加载，得到地应力存在下的煤体变形破坏规律；利用力学监测系统进行监测截齿截割力学测试，得出任意条件下的力学参数；利用截齿切换装置进行截齿形状和排序的不同组合，测定截齿在不同组合下截割煤岩体 的产尘情况，利用高速摄像机和激光多普勒分别测定粉尘运移情况和粉尘的速度、浓度和粒度大小，掌握综采工作面粉尘运移规律，为降低了煤矿综采工作面的粉尘浓度提供理论和数据支持。
该实验平台由手动遥控系统切换工作条件，即通风与封闭两种不同的工作条件；由主控制系统通过综合变速器控制牵引速度，为截齿提供不同的牵引速度；滚筒截齿可进行不同排列顺序不同形状的变换，可由人机互换界面进行控制，截齿可选择梭镖形和凿子形，排列顺序包括顺序式和交叉式，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒进行截割，在截割过程中，主控制系统通过力学加载装置向煤体加载应力，模拟井下地应力环境。在截割过程中，截齿受力情况由三向力传感器进行检测，并传递给中央控制系统，中央控制系统通过数据的收集和分析处理得到不同参数变化；产生粉尘变化过程可由高速摄像机进行拍摄，并由激光多普勒对粉尘的浓度、粒度和速度进行检测，分析不同大小粉尘粒径的分布特征，可有效实现煤岩体截割产尘的仿真模拟，同时，为以后构建科学合理的截割模型、矿井粉尘预测等等方面提供指导，为矿井粉尘防治提供理论和数据支持。
对附图的简要说明
附图说明
下面结合附图对本发明做进一步说明：
图1为本发明一种模拟煤岩体截割产尘的仿真实验系统示意图；
图2为本发明一种模拟煤岩体截割产尘的仿真实验系统正视图；
图3为本发明截齿排列顺序示意图；
图4为镐型截齿；
图5为刀型截齿；
图6为本发明实验装置总体图。
其中：1-截割实验台；2-综合变速器；3-纵向升降台；4-无极变速器；5-截齿；6-八角圆环测力计；7-滚筒；8-煤块试样；9-挡板；10-高速摄像机；11-三脚架；12-固定装置；13-横向移动平台；14-相位多普勒干涉仪；15-力学加载装置；16-平台外壳；17-三向力传感器；18-双向立柱。
发明实施例
本发明的实施方式
本发明提出了一种模拟煤岩体截割产尘的仿真实验系统及实验方法，为了使本发明的优点、技术方案更加清楚、明确，下面结合具体实施例对本发明做详细说明。
结合图1至图6所示，本发明一种模拟煤岩体截割产尘的仿真实验系统，包括任意分布载荷的加载装置、牵引速度加载装置、各种约束方式的实现装置、滚筒转速控制装置、截齿切换装置、力学监测系统、粉尘监测装置。实验平台上放置有截割实验台1，截割实验台1上放置有煤块试样8，煤块试样8的外围设置有挡板9，该实验平台可由手动遥控系统切换工作条件，即通风与封闭两种不同的条件；由中央处理器通过综合变速器2控制牵引速度，为截齿5提供不同的牵引速度；滚筒截齿可进行不同排列顺序不同形状的变换，可由人机互换界面进行控制，截齿5可选择梭镖形和凿子形，排列顺序包括顺序式和交叉式，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒进行截割。在截割过程中，截齿受力情况由三向力传感器17进行检测，并传递给中央处理系统，得到不同参数变化；产生粉尘变化过程可由高速摄像机10进行拍摄，高速摄像机10下面放置有三脚架11，并由激光多普勒对粉尘的浓度、粒度和速度进行检测，可有效实现煤岩体截割产尘的仿真模拟。
上述步骤具体的还包括：该实验平台可由手动遥控系统切换工作条件，即通风与封闭两种不同的条件；任意分布载荷的加载装置可以产生不同的力学加载参数，模拟地应力条件下的煤体变形破坏规律，同时可改变煤岩体在受力过程中的三向力大小，确定煤岩体的最佳受力范围；牵引速度加载装置主要为平台提供牵引力，中央控制系统通过分析计算，将信号传递给综合变速器进行控制牵引力的大小；各种约束方式的实现装置主要包括横向移动平台、纵向移动平台和固定装置12，横向移动平台13为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可以横向移动，横向移动平台13上方设置双向立柱18，纵向移动平台模仿采煤机滚筒的升降装置，使得滚筒7可选择不同的割煤方式，达到最大采煤率，纵向移动平台包括纵向升降台3，固定装置是对煤岩体进行固定 的装置，能够有效保证未截割之前煤岩体的稳定状态；滚筒转速控制装置主要提供截齿的截割速度，由中央控制系统控制无极变速器4内部主动带轮轴和从动带轮轴的相对转动速度来控制滚筒的转速来控制滚筒的转速，有效的截割煤岩体；滚筒截齿能够进行不同排列顺序不同形状的变换，可由人机互换界面进行控制，截齿的选择主要有梭镖形和凿子形两种形式，排列顺序包括顺序式和交叉式，根据截割实验要求，进行不同形式的组合截割，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒进行截割；在截齿截割煤岩体的过程中，煤岩体受到剪切力的作用，产生三向力的变化，可由力学监测系统进行监测；截齿在截割的过程中，产生的粉尘由粉尘监测装置进行监测，在截齿嵌入煤岩体的初期过程中，由高速摄像机拍摄粉尘的扩散过程，当粉尘充满空间时，由相位多普勒干涉仪14对粉尘的速度、浓度、粒度进行测试，可有效实现煤岩体截割产尘的仿真模拟，为降尘提供理论和数据的支持。
上述步骤具体的还包括：该实验平台外部由酚醛树脂材质进行制造平台外壳16，在外壳尺寸设计为长宽高为2000mm×1200mm×1000mm，在外壳侧面有直径为200mm的圆形通风口，在该圆形通风口相对侧的外壳上还设置有另外一个通风口，以实现与外界气体进行交换的目的。根据实验需求进行开关，由电动马达控制，马达运转时，控制器会从脉冲器输入信号中收到脉冲，窗口升起，当马达停止时，脉冲器不再发生脉冲信号，脉冲器输入端的控制器感测到之后，电压就不再送往电动窗马达。并设有自动门，用以更换检查设备，由自动感应装置进行调控，采用感应探测器对人体进行识别，当距离门距离为100mm的时，马达控制皮带将门打开，当远离100mm的距离时，门将会自动关闭；任意分布载荷的加载装置可以产生不同的力学加载参数，对截齿截割过程中的三向力进行任意改变，截割过程中，不同的煤种受力不同，通过载荷加载，可实现不同煤种的力学分布测定。
牵引速度加载装置主要为该实验平台提供牵引力，通过遥控系统进行速度的选择，中央处理器接收信号并进行计算处理，将处理后的信号传递给综合变速器，综合变速器接收信号后，当速度较为固定时，综合变速器选择有级式的可选择固定传动比，采用齿轮转动的方式进行改变速度，当速度较为波动时，可由 无极液压式进行变速，传动比可在一定范围内连续变化；各种约束方式的实现装置主要包括横向移动平台、纵向移动平台和固定装置，横向移动平台为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可以横向移动，纵向移动平台模仿采煤机滚筒的升降装置，在人机互换界面选择下降距离，并将信号传递给中央处理系统，中央处理系统通过控制电动机，带动钢丝绳移动，使得截齿固定端可以上下移动，模拟采煤机上下行割煤方式，达到最大采煤率，固定装置是对煤岩体利用电动伸缩框进行固定，当截齿开始截割时，电动伸缩框自动固定，有效的保证未截割之前煤岩体的稳定状态。
上述步骤具体的还包括：滚筒转速控制装置主要对滚筒转速进行控制，当进行截割磨损力学实验时，中央控制器控制机械式无极变速器的传动带和工作直径进而改变主、从动轮相配合来传递动力，可以实现传动比的连续改变，从而得到传动系与发动机工况的最佳匹配；截齿的选择采用人机界面进行选定，截齿按类型可分为梭镖形和凿子形两种形态，排列顺序可分为顺序式和交叉式，且截齿的大小和数量也可进行选择，按照实验的需要，可进行不同的配合截割，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒进行截割。
力学监测系统主要采用三向力传感器和八角圆环测力计6进行力学参数的测定，截齿在截割过程中，由于剪切作用，截齿和煤岩体都会受到三向力的作用，在截齿固定端接入八角圆环测力计，在煤岩体固定装置处安装三向力传感器，可分别测试截齿和煤岩体在截割过程中的受力情况；在截割过程中，截齿与煤岩体接触，造成密实核破裂，进而产生粉尘，通过粉尘监测装置对产生粉尘的扩散轨迹、速度、浓度、粒度等进行测试，由高速摄像机对粉尘的扩散进行监测，当粉尘充满空间时，由相位多普勒干涉仪对粉尘的速度、浓度、粒度进行测试，有效实现煤岩体截割产尘的仿真模拟，为降尘提供理论和数据的支持。
更为具体的如下：
如图1所示的，该实验平台可由手动遥控系统切换工作条件，即通风与封闭两种不同的条件；任意分布载荷的力学加载装置15可以产生不同的力学加载参数，改变煤岩体在受力过程中的三向力大小，确定煤岩体的最佳受力范围；牵引速度加载装置主要为平台提供牵引力，中央控制系统通过分析计算，将信号传 递给综合变速器2进行控制牵引力的大小；各种约束方式的实现装置主要包括横向移动平台13、纵向升降台3和固定装置12，横向移动平台13为整个实验平台提供横向运移通道，使得截齿5在受到牵引力的同时可以横向移动，纵向移动平台2模仿采煤机滚筒7的升降装置，使得滚筒7可选择不同的割煤方式，达到最大采煤率，固定装置12是对煤岩体进行固定的装置，能够有效保证未截割之前煤岩体的稳定状态；滚筒转速控制装置主要提供截齿5的截割速度，由中央控制系统控制无极变速器4来控制滚筒的转速，有效的截割煤岩体；滚筒截齿5能够进行不同排列顺序不同形状的变换，可由人机互换界面进行控制，截齿的选择主要有梭镖形和凿子形两种形式，排列顺序包括顺序式和交叉式，根据截割实验要求，进行不同形式的组合截割，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒7进行截割；在截齿截割煤岩体的过程中，煤岩体受到剪切力的作用，产生三向力的变化，可由力学监测系统进行监测；截齿在截割的过程中，产生的粉尘由粉尘监测装置进行监测，在截齿嵌入煤岩体的初期过程中，由高速摄像机10拍摄粉尘的扩散过程，当粉尘充满空间时，由相位多普勒干涉仪14对粉尘的速度、浓度、粒度进行测试，有效实现煤岩体截割产尘的仿真模拟，为降尘提供理论和数据的支持。
如图2所示的，该实验平台外部由酚醛树脂材质进行制造平台外壳16，外壳尺寸设计为长宽高为2000mm×1200mm×1000mm，在外壳侧面有直径为200mm的圆形通风口，根据实验需求进行开关，由电动马达控制，马达运转时，控制器会从脉冲器输入信号中收到脉冲，窗口升起，当马达停止时，脉冲器不再发生脉冲信号，脉冲器输入端的控制器感测到之后，电压就不再送往电动窗马达。并设有自动门，用以更换检查设备，由自动感应装置进行调控，采用感应探测器对人体进行识别，当距离门为100mm的时，马达控制皮带将门打开，当远离100mm的距离时，门将会自动关闭；任意分布载荷的加载装置15可以产生不同的力学加载参数，对截齿截割过程中的三向力进行任意改变，截割过程中，不同的煤种受力不同，通过载荷加载，可实现不同煤种的力学分布测定，滚筒转速控制装置主要对滚筒7转速进行控制，当进行截割磨损力学实验时，中央控制器控制机械式无极变速器4的传动带和工作直径进而改变主、从动轮相配合来传递动 力，可以实现传动比的连续改变，从而得到传动系与发动机工况的最佳匹配。
如图3-图5所示的，截齿5的选择采用人机界面进行选定，截齿按类型可分为梭镖形和凿子形两种形态，按截割类型分为刀型截齿和镐型截齿，排列顺序可分为顺序式和交叉式，且截齿的大小和数量也可进行选择，按照实验的需要，可进行不同的配合截割，根据井下工作空间的不同，可手动切换掘进截割头和采煤机滚筒进行截割。
本发明未述及的部分借鉴现有技术即可实现。
需要说明的是：在本说明书的教导下本领域技术人员所做出的任何等同方式，或明显变型方式均应在本发明的保护范围内。

Claims (6)

  1. 一种模拟煤岩体截割产尘的仿真实验系统，其包括实验平台，其特征在于：所述的实验平台上放置有截割实验台，所述的截割实验台上设置有煤块试样、任意分布载荷的加载装置、牵引速度加载装置、各种约束方式的实现装置、滚筒转速控制装置及截齿切换装置，力学监测装置及粉尘监测装置，该实验系统通过中央控制系统控制各个子系统完成实验要求；
    所述的任意分布载荷的加载装置位于所述煤块试样的相邻侧，中央控制系统控制结构薄片对所述煤块试样进行不同力学的加载，以产生不同的力学加载参数；
    所述的牵引速度加载装置用于向所述实验平台提供牵引力，所述的牵引速度加载装置通过中央控制系统对其进行控制；
    各种约束方式的实现装置主要包括横向移动平台、纵向移动平台和固定装置，所述的横向移动平台为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可横向移动，所述纵向移动平台模仿采煤机滚筒的升降装置，在人机互换界面选择下降距离，并将信号传递给中央控制系统，所述的中央控制系统用于控制电动机带动钢丝绳移动，使得截齿固定端可以上下移动，模拟采煤机上下行割煤方式；
    所述的滚筒转速控制装置包括无极变速器，所述的无极变速器位于所述纵向升降台上方，用于控制滚筒的转速；
    所述的截齿切换装置包括滚筒截齿、截齿固定端、电动机和钢丝绳，所述的滚筒截齿位于所述煤块试样的相邻侧；
    所述的实验平台还配置有力学监测装置和粉尘监测装置，所述的力学监测装置用于监测煤岩体在受到剪切力的作用时产生的三向力的变化；所述的粉尘监测装置用于监测煤岩体在截割过程中产生的粉尘。
  2. 根据权利要求1所述的一种模拟煤岩体截割产尘的仿真实验系统， 其特征在于：所述的粉尘监测装置包括高速摄像机和相位多普勒干涉仪，通过高清摄像机拍摄粉尘的扩散过程，通过相位多普勒干涉仪对粉尘的速度、浓度及粒度进行测试。
  3. 根据权利要求1所述的一种模拟煤岩体截割产尘的仿真实验系统，其特征在于：所述的实验平台上设置有一长方体外壳，所述的长方体外壳上设置有与外界进行气体交换的圆形通风口。
  4. 根据权利要求1所述的一种模拟煤岩体截割产尘的仿真实验系统，其特征在于：所述的滚筒截齿包括梭镖形和凿子形两种形式，排列顺序包括顺序式和交叉式。
  5. 根据权利要求3所述的一种模拟煤岩体截割产尘的仿真实验系统，其特征在于：所述的长方体外壳的长、宽、高分别为2000mm、1200mm、1000mm，所述的圆形通风口的直径为200mm。
  6. 根据权利要求1所述的一种模拟煤岩体截割产尘的仿真实验系统的实验方法，其特征在于，包括以下步骤：
    a通过所述任意分布载荷的加载装置产生不同的力学加载参数，改变煤块试样在受力过程中的三向力大小，确定煤岩体的最佳受力范围；
    b通过牵引速度加载装置为实验平台提供牵引力，中央控制系统通过分析计算，将信号传递给综合变速器来控制牵引力的大小；通过横向移动平台为整个实验平台提供横向运移通道，使得截齿在受到牵引力的同时可以横向移动，通过纵向移动平台模仿采煤机滚筒的升降装置，使得滚筒可选择不同的割煤方式，达到最大采煤率；
    c通过所述的滚筒转速控制装置提供截齿的截割速度，由中央控制系统控制无极变速器内部主动带轮轴和从动带轮轴的相对转动速度来控制滚筒的转速，从而进行有效的截割煤岩体；
    d通过粉尘监测装置对粉尘的速度、浓度、粒度进行测试，有效实现煤岩体截割产尘的仿真模拟。
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