CN104075904B - Test bed for anchoring of anchor rod and detection method - Google Patents
Test bed for anchoring of anchor rod and detection method Download PDFInfo
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- CN104075904B CN104075904B CN201410307777.2A CN201410307777A CN104075904B CN 104075904 B CN104075904 B CN 104075904B CN 201410307777 A CN201410307777 A CN 201410307777A CN 104075904 B CN104075904 B CN 104075904B
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Abstract
The invention relates to the technical field of mine supporting, in particular to a test bed for anchoring of an anchor rod and a detection method. The test bed comprises the anchor rod for mine supporting and further comprises a propelling device, a stirring device, an installation detection table, a coal and rock mass physical model and a dynamic torque revolution speed transducer. The propelling device is used for driving the stirring device to move linearly along the installation detection table, the stirring device drives the anchor rod to rotate along the axis of the anchor rod so that the anchor rod can be anchored into a drill hole in the coal and rock mass physical model, and the dynamic torque revolution speed transducer is used for detecting the propelling force, the propelling speed, the stirring torque and the stirring revolution speed of the anchor rod and sending the detection information of the anchor rod to a computer control and data collection system. A computer is used for conducting data processing and control, the propelling resistance and the stirring resistance are detected in the anchoring process of the anchor rod in a laboratory, optimizing of the structure of the anchor rod and the deepening of the performance of anchoring agents are studied, and the test bed for anchoring of the anchor rod and the detection method have important significance in ensuring engineering quality.
Description
Technical field
The present invention relates to technical field of mine support, more particularly, to a kind of for anchor rod anchored testing stand and detection side
Method.
Background technology
At present, suspension roof support has become coal mine roadway safely and efficiently main support pattern, in China's coal-mine tunnel
To large scale application.Suspension roof support is by the anchor rod anchored body in coal petrography, tightens bar tail nut, and country rock is applied in advance should
Power, the deformation absciss layer of constraint roadway surrounding rock, the broken swollen and sliding changing of the relative positions.
The anchoring quality of work progress anchor pole is one of principal element of impact Effects of Supporting.Using qualified anchor
The engineering materials such as bar, Anchor Agent, under the conditions of normal construction technology, the contour structures of anchor pole are stirred with size, Anchor Agent
Complexity, bore diameter etc. directly affect the anchoring quality of anchor pole.The anchoring effect of research anchor pole is to improve suspension roof support matter
The important step of amount.
The anchoring of anchor pole is in work progress, in roadway surrounding rock anchor pole decorating position drilling and load Anchor Agent, by anchor
Bar Stirring Anchor Agent, the agitated solidify afterwards of Anchor Agent when pushing boring, and anchor pole is bonded in the process in boring.Anchor
Bar anchoring procedure propelling resistance and the size of stirring moment of torsion, determine the complexity of anchor rod anchored construction, the propulsion speed of anchor pole
Degree and rotary speed, determine the uniformity coefficient of Anchor Agent stirring, and then affect the solidification bond effect of Anchor Agent.And it is straight to hole
The uniformity coefficient that the size in footpath stirs to propelling resistance and the Anchor Agent of anchor pole all will have a direct impact, and bore diameter increases,
Propelling resistance reduces, but when bore diameter exceedes certain limit, Anchor Agent stirring will be led to uneven, anchoring quality reduction.
Detection method currently for anchor rod anchored process mainly has two big class: underground trials and laboratory test.
Underground trials mainly pass through the detecting instrument such as anchor rod drawing meter, steel tape, detection anchor pole anchor force with expose length
Degree, evaluates the anchoring effect of anchor pole, and the data that underground trials obtain is field measurement data, can truly reflect down-hole anchor pole
Anchoring situation.But, the shortcoming of underground trials is: due to anchor rod anchored be related to anchor pole profile, Anchor Agent performance, bore diameter,
And each side factor such as constructing operation, test system is extremely complex, the special environment in down-hole in addition, some advanced monitoring sides
Method is also restrained with the application of instrument, also not can be directly used for down-hole, carries out the instrument of anchor rod anchored procedure parameter test
Device equipment.The content of Site Detection, can only reflect anchor rod anchored result afterwards.And, for ensureing roadway surrounding rock structural integrity
Property, anchor rod anchored in wall rock drill-hole after it is impossible to retrieve, also cannot check Anchor Agent stirring state and actual solidification shape
State.
For anchor rod anchored laboratory test, replace coal and rock boring using steel pipe at present, manually promote rig
Test anchor pole rotating speed and the test method of stirring moment of torsion, the data of test can reflect the complexity of Anchor Agent stirring.But,
Some projects test can only be carried out, and test result is affected by human factors greatly, test condition and test event are not enough it is impossible to
The comprehensively reflection installation parameter such as fltting speed and propelling resistance, nor meet network analysis anchor pole profile, Anchor Agent performance with
And the requirement that the parameter such as supporting bore diameter affects on anchoring effect.And, the control technology of laboratory test and data acquisition,
Still in manually operated, numerical monitor and the technical merit manually made a copy of, repeatable poor, the data acquisition frequency of controlling test condition
Rate is low, data easy to lose, substitutes wall rock drill-hole using steel pipe completely, and experimental condition difference is big, and is difficult to observe anchoring in steel pipe
The stirring solidification situation of agent.
Therefore, for above deficiency, needs are a kind of can be in the testing stand of the experiment anchor rod anchored work progress of lab simulation
And apply the method that this testing stand accurately and effectively detects anchor rod anchored construction parameter.
Content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention there is provided a kind of for anchor rod anchored testing stand and detection method so that
In the experiment anchor rod anchored work progress of lab simulation, and can control and detect construction parameter, solidification can be stirred to Anchor Agent
Effect carries out cutting observation.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provide a kind of for anchor rod anchored testing stand, this testing stand includes
For the anchor pole of mine support, this testing stand also includes propulsion plant, agitating device, installs monitor station, coal and rock physical model
With dynamic torque speed probe, described propulsion plant is used for driving agitating device along installing monitor station rectilinear movement, and described
Agitating device drives described anchor pole rotatable around its axis, makes in the anchor rod anchored boring in coal and rock physical model, described dynamic
Torque speed sensor is respectively arranged on propulsion plant and agitating device, detects anchor by described dynamic torque speed probe
The propulsive force of bar, fltting speed, stirring moment of torsion and speed of agitator, and detection information is transmitted to computer controls and data acquisition
System is to carry out data processing and control.
Wherein, described propulsion plant includes drive mechanism and ball-screw, and described drive mechanism is fixed on described installation to be examined
The end of scaffold tower, described ball-screw is fixedly connected with the output shaft of drive mechanism, and the feed screw nut of described ball-screw is fixed
It is connected on agitating device, described dynamic torque speed probe is installed on the output shaft of drive mechanism.
Wherein, described agitating device includes drive mechanism and propulsion flatcar, and described propulsion flatcar is fixing with feed screw nut even
Connect, and by advancing flatcar bottom surface slide block along installing detection countertop slide rail linear slide, propulsion flatcar fixedly mounts
State drive mechanism, the output shaft of described drive mechanism is connected with anchor pole, described dynamic torque speed probe is installed on driving machine
On the output shaft of structure.
Wherein, described drive mechanism controls the moment of torsion of its output shaft and rotating speed by fluid motor-driven or passes through frequency conversion
Motor variable-frequency speed-regulating control the moment of torsion of its output shaft and rotating speed or the moment of torsion by servomotor its output shaft of Pulse Width Control and
Rotating speed.
Wherein, described installation monitor station is provided with bearing block, described ball-screw is arranged on described bearing block.
Wherein, described installation monitor station bottom is provided with base, and described base is provided with slide rail, described installation monitor station edge
Described slide rail slides.
Wherein, it is provided with the Anchor Agent for anchor pole is adhesively fixed in described coal and rock physical model boring.
A kind of detection method for anchor rod anchored testing stand, comprises the steps:
S1, will install monitor station mobile near coal and rock physical model position；
S2, to coal and rock physical model boring in add Anchor Agent；
S3, one end of anchor pole to be measured is installed on agitating device；
S4, made by propulsion plant anchor pole be axially inserted into coal and rock physical model boring in；
S5, anchor pole is made to rotate about the axis thereof by agitating device, anchor pole is sufficiently stirred for Anchor Agent；
S6, the propulsive force being detected anchor pole by dynamic torque speed probe, fltting speed, stirring moment of torsion and stirring are turned
Speed, and its detection information is transmitted to computer controls and data collecting system, data processing and control are carried out by computer.
Wherein, in propulsive force described in step s6 according to the output torque of propulsion plant drive mechanism, ball-screw diameter, rolling
Ballscrew lead angle, ball-screw frictional force and propulsion flatcar frictional force calculate gained；Described fltting speed is according to propulsion dress
Put the output speed of drive mechanism and ball screw spiral lift angle calculates gained.
Wherein, speed of agitator described in step s6 be agitating device drive mechanism output rotating speed；Described stirring moment of torsion
Moment of torsion for agitating device drive mechanism output shaft.
(3) beneficial effect
The technique scheme of the present invention has the advantages that the present invention is used for the propulsion of anchor rod anchored testing stand
Device is used for driving agitating device to move linearly along installing monitor station；Agitating device in rectilinear movement and drives anchor pole around its axle
Line rotates, and makes, in the anchor rod anchored boring being installed on coal and rock physical model, to realize the anchor in experiment lab simulation anchor bolt construction
Gu process；Detect propulsive force, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole by dynamic torque speed probe, and
Its detection information is sent to computer controls and data collecting system, data processing and control are carried out by computer.According to anchor
Bar propulsive torque can be calculated the propulsive force of anchor pole；Rotating speed is advanced to calculate the fltting speed of anchor pole according to anchor pole.It is used for by this
Anchor rod anchored testing stand, may be implemented in the indoor detection to anchor rod anchored propelling resistance and stirring resistance of experiment, also can be in anchor
After bar anchoring, take out and open coal and rock physical model, under the conditions of checking every kind of bore diameter, the anchor pole of different contour structures,
When being anchored using different fltting speeds and rotating speed, the mixing effect of Anchor Agent, network analysis anchor pole contour structures, boring
The impact to mixing effect such as diameter, anchor pole fltting speed, anchor pole rotary speed, is bore diameter, anchor pole contour structure size
And the engineering parameter such as Anchor Agent performance and optimization of material provide foundation, to improving suspension roof support reliability it is ensured that engineering safety tool
Significant.
Brief description
Fig. 1 is used for the sectional view of anchor rod anchored testing stand for the embodiment of the present invention.
Wherein, 1: monitor station is installed；5: anchor pole；11: base；31: propulsion plant；32: agitating device；93: coal and rock thing
Reason model；101: dynamic torque speed probe；311: drive mechanism；312: ball-screw；322: propulsion flatcar.
Specific embodiment
With reference to the accompanying drawings and examples embodiments of the present invention are described in further detail.Following examples are used for
The present invention is described, but can not be used for limiting the scope of the present invention.
In describing the invention, unless otherwise stated, " multiple " are meant that two or more；Unless otherwise saying
Bright, the implication of " nick shaped " be except section concordantly in addition to shape.Term " on ", D score, "left", "right", " interior ", " outward ", " front
The orientation of instruction such as end ", " rear end ", " head ", " afterbody " or position relationship are based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or the hint device of indication or element must have specific
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ",
" second ", " 3rd " etc. are only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As shown in figure 1, the present embodiment provide for anchor rod anchored testing stand, including the anchor pole 5 for mine support,
Also include propulsion plant 31, agitating device 32, monitor station 1, coal and rock physical model 93, dynamic torque speed probe are installed
101.Propulsion plant 31 is used for driving agitating device 32 to move linearly along installing monitor station 1, and agitating device 32 drive anchor pole 5 around
Its axis rotates.One end of anchor pole 5 is installed on agitating device 32, and the other end of anchor pole 5 enters axially into coal and rock physics mould
In the boring of type 93；Add Anchor Agent in boring, so that anchor pole 5 is rotated about the axis thereof under agitating device 32 drives, rotation
Anchor pole 5 stirs Anchor Agent, so that anchor pole 5 is anchored in the boring of coal and rock physical model 93.101 points of dynamic torque speed probe
Be not installed on propulsion plant 31 and agitating device 32, by dynamic torque speed probe 101 detect anchor pole 5 propulsive force,
Fltting speed, stirring moment of torsion and speed of agitator, and its detection information is sent to computer controls and data collecting system, by counting
Calculation machine carries out data processing and control.Realize the anchoring construction process in experiment lab simulation anchor pole 5, and being capable of accurate and effective
Detect the technological parameter relation of anchor pole 5 anchoring procedure.
Preferably, in order to realize this stirring propulsion testing agency Automated condtrol, propulsion plant 31 includes drive mechanism 311
With ball-screw 312.Drive mechanism 311 is fixed on the end installing monitor station 1, and ball-screw 312 is defeated with drive mechanism 311
Shaft is fixedly connected, and the feed screw nut of ball-screw 312 is fixedly connected on agitating device 32, meanwhile, will be used for testing moment of torsion
It is installed on the output shaft of drive mechanism 311 of propulsion plant 31 with the dynamic torque speed probe 101 of rotating speed.
Preferably, stir the process of Anchor Agent to simulate anchor pole 5, agitating device 32 includes drive mechanism 311 and propulsion
Flatcar 322.Propulsion flatcar 322 is fixedly connected with the feed screw nut of ball-screw 312.The feed screw nut of ball-screw 312 is fixed
It is connected on propulsion flatcar 322；Ball-screw 312 synchronous rotary can be driven when the output shaft rotation of drive mechanism 311；With
When, ball-screw 312 drives feed screw nut linear motion, and feed screw nut is fixedly connected with propulsion flatcar 322, and advances flatcar
322 bottom surfaces are provided with slide block, and under feed screw nut drives, propulsion flatcar 322 moves along the top surface slide rail straight line installing monitor station 1
Dynamic.It is installed with drive mechanism 311, the output shaft of drive mechanism 311 is fixedly connected with anchor pole 5, works as drive on propulsion flatcar 322
Drive anchor pole 5 to rotate about the axis thereof during the output shaft rotation of motivation structure 311, complete to stir Anchor Agent process；Meanwhile, will be used for examining
Survey moment of torsion and the dynamic torque speed probe 101 of rotating speed is installed on the output shaft of drive mechanism 311 of agitating device 32.
Drive mechanism 311 can control the moment of torsion of its output shaft and rotating speed by fluid motor-driven or pass through variable-frequency electric
The moment of torsion of machine its output shaft of variable frequency regulating speed control and rotating speed or the moment of torsion by servomotor its output shaft of Pulse Width Control and turn
Speed.
Hydraulic motor is a kind of executive component of hydraulic system, and it is defeated that the liquid pressure energy that hydraulic pump provides is changed into it by it
The torque of shaft and rotating speed.By Stress control moment of torsion, the pressure differential between its output torque and hydraulic motor oil inlet and outlet has
Close；Rotating speed is controlled by flow, its rotating speed to be determined by the uninterrupted of input hydraulic pressure motor；There is response frequency height, be not afraid of
The advantage of stall.
Drive mechanism 311 can also adopt variable-frequency motor, and variable-frequency motor adopts " special variable frequency induction motor+frequency converter "
AC speed regulating, need to adopt inverter supply, stator and rotor controlled by electromagnetic induction, it is defeated using variable frequency regulating speed control
The moment of torsion of shaft and rotating speed, are suitable for the busy shift under different working conditions.
Drive mechanism 311 can also adopt moment of torsion and the rotating speed of servomotor its output shaft of Pulse Width Control.Servomotor can
So that voltage signal to be converted into torque and rotating speed with drive control object.Servo motor rotor rotating speed is controlled by input signal, and
Can fast reaction, in automatic control system, as executive component, and have that electromechanical time constant is little, the linearity is high, initiating is electric
The characteristics such as pressure, can be converted into the angular displacement on motor reel or angular speed output the electric signal being received.
Preferably, dynamic torque speed probe 101 includes speed probe and torque sensor, using speed probe
The rotating speed of detection drive mechanism 311 output shaft；Detect the moment of torsion of drive mechanism 311 output shaft using torque sensor.This area
Technical staff can be according to output torque, ball-screw diameter, ball screw spiral lift angle, ball-screw frictional force and propulsion flatcar
Frictional force calculates the propulsive force of rockbolt installation process；Anchor pole is calculated according to output speed and ball screw spiral lift angle
The fltting speed of installation process.
Preferably, on monitor station 1 is installed, bearing block is installed, ball-screw 312 is arranged on bearing block, ball-screw
312 can rotate in bearing block, decrease the vibration installing monitor station 1；Additionally, being provided with bottom installing monitor station 1 bottom
Seat 11, base 11 is provided with slide rail, installs monitor station 1 and can slide along slide rail under the drive of oil cylinder, and convenient change installs inspection
The position of scaffold tower 1.
Preferably, in order to simulate the anchoring procedure in underground coal mine for the anchor pole 5, realize accurately and efficiently examining in experiment interior
Measure the mounting process parameter of anchor pole 5, coal and rock physical model 93 hole in be provided with the Anchor Agent of fixing anchor bar 5.Coal and rock thing
Reason model 93 is preferably real coal or rock, and coal and rock physical model 93 is alternatively the Other Engineering material similar to coal or rock
The boring physical model that matter is made, Anchor Agent is the authentic material adopting in engineering it may be preferred to be resin anchoring agent, resin anchor
Gu agent is by unsaturated polyester resin, curing agent, accelerator and other auxiliary material, the thick material being formulated by a certain percentage,
Using polyester film comparting packaging, cylindrical powder stick, there are stirring at normal temperature solidify afterwards soon, adhesive strength is high, anchor force is reliable
With the premium properties such as good endurance, thus ensure that authenticity and the reliability of testing inspection data.
Anchor rod anchored testing stand is used for by this, may be implemented in experiment interior and anchor rod anchored technological parameter is tested, be
The technological parameters such as system research anchor pole contour structures, Anchor Agent performance and rockbolt installation bore diameter, improving suspension roof support can
By property it is ensured that engineering safety is significant.
Present invention also offers a kind of basis this be used for the detection method of anchor rod anchored testing stand, comprise the steps:
S1, will install monitor station mobile near coal and rock physical model position；
Connect oil cylinder by installing monitor station bottom, drive installation monitor station slides near coal and rock along the slide rail of base
Physical model position；Propulsive mechanism reversely rotates, and feed screw nut drives propulsion flatcar to pass through bottom surface slide block edge and installs detection
Countertop slide rail straight line sliding backward, is retracted into coal and rock physical model far-end.
S2, to coal and rock physical model boring in add Anchor Agent；
Anchor Agent is for the engineering material that anchor pole is bonding with hole wall country rock, has stirring at normal temperature solidify afterwards soon, bonding
Intensity is high, the premium properties such as anchor force reliability and good endurance.Can achieve the anchor rod anchored of simulation reality by using Anchor Agent
Process.
S3, one end of anchor pole to be measured is installed on agitating device；
One end of anchor pole to be measured is installed on drive mechanism output shaft by speed probe and torque sensor, anchor pole
Aperture just to the boring of coal and rock physical model.Coal and rock physical model is preferably real coal or rock, coal and rock physics mould
Type is alternatively the boring physical model that the Other Engineering material similar to coal or rock is made.
S4, made by propulsion plant anchor pole be axially installed to coal and rock physical model boring in；
The output shaft rotation of drive mechanism, drives ball-screw synchronous rotary；Meanwhile, ball-screw drives feed screw nut straight
Line moves；Feed screw nut is connected with propulsion flatcar, and propulsion flatcar bottom surface is provided with slide block, makes propulsion flatcar by slide block along installation
Detection countertop slide rail rectilinear movement；And then anchor pole is axially installed in the boring of coal and rock physical model.
S5, anchor pole is made to rotate about the axis thereof by agitating device, anchor pole is sufficiently stirred for Anchor Agent；
The output shaft rotation of drive mechanism, drives anchor pole to rotate about the axis thereof, the anchor pole of rotation is sufficiently stirred for Anchor Agent, complete
Become the whipping process of Anchor Agent.
S6, the propulsive force being detected anchor pole by dynamic torque speed probe, fltting speed, stirring moment of torsion and stirring are turned
Speed, and its detection information is sent to computer controls and data collecting system, data processing and control are carried out by computer.
Wherein, propulsive force is according to the output torque of propulsion plant drive mechanism, ball-screw diameter, ball screw spiral liter
Angle, ball-screw frictional force and propulsion flatcar frictional force calculate gained；Fltting speed is according to the output of propulsion plant drive mechanism
Rotating speed and ball screw spiral lift angle calculate gained.
Wherein, speed of agitator is the output rotating speed of agitating device drive mechanism；Stirring moment of torsion is agitating device driving machine
The moment of torsion of structure output shaft.
The coal and rock physical model using is similar to underworkings wall rock condition, anchoring is had the coal and rock physics of anchor pole
Model take out after cutting, can under the various wall rock condition of visual test aperture and anchor pole, Anchor Agent matching, and anchor pole propulsion
The impact to Anchor Agent mixing effect of speed and rotary speed.
In sum, the present invention is used for driving agitating device along installation inspection for the propulsion plant of anchor rod anchored testing stand
Scaffold tower moves linearly；Agitating device rectilinear movement when and drive anchor pole rotatable around its axis, make anchor rod anchored in coal and rock thing
In the boring of reason model, realize the anchoring procedure in experiment lab simulation anchor bolt construction；Examined by dynamic torque speed probe
Survey propulsive force, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole, and its detection information is sent to computer controls and number
According to acquisition system, data processing and control are carried out by computer.Can be calculated the propulsive force of anchor pole according to anchor pole propulsive torque；Root
Rotating speed is advanced to calculate the fltting speed of anchor pole according to anchor pole.Anchor rod anchored testing stand is used for by this, may be implemented in experiment indoor
Detection to anchor rod anchored propelling resistance and stirring resistance, also can take out and open coal and rock physical model after anchor rod anchored,
Under the conditions of checking every kind of bore diameter, using Anchor Agent mixing effect when different anchor pole fltting speeds and anchor pole rotating speed, it is
System analysis bore diameter, anchor pole fltting speed, the impact to mixing effect such as anchor pole rotary speed are bore diameter, outside anchor pole
The engineering parameter such as shape physical dimension and Anchor Agent performance and optimization of material provide foundation, to improving suspension roof support reliability it is ensured that
Engineering safety is significant.
Embodiments of the invention in order to example and description for the sake of and be given, and be not exhaustively or by this
Bright it is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is in order to the principle of the present invention and practical application are more preferably described, and makes those of ordinary skill in the art
It will be appreciated that the present invention is thus design is suitable to the various embodiments with various modifications of special-purpose.
Claims (9)
1. a kind of for anchor rod anchored testing stand, including the anchor pole (5) for mine support it is characterised in that also including pushing away
Enter device (31), agitating device (32), monitor station (1), coal and rock physical model (93) and dynamic torque speed probe are installed
(101), described propulsion plant (31) is used for driving agitating device (32) to move linearly along installing monitor station (1), and described stirring
Device (32) drives described anchor pole (5) rotatable around its axis, makes anchor pole (5) be anchored in the boring of coal and rock physical model (93)
Interior, described dynamic torque speed probe (101) is respectively arranged on propulsion plant (31) and agitating device (32), by described
Dynamic torque speed probe (101) detects propulsive force, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole (5), and will examine
Measurement information transmits to computer controls with data collecting system to carry out data processing and control；
Wherein, described dynamic torque speed probe (101) includes speed probe and torque sensor, using speed probe
The rotating speed of detection drive mechanism (311) output shaft, detects the moment of torsion of drive mechanism (311) output shaft, root using torque sensor
Calculate according to described moment of torsion, ball-screw diameter, ball screw spiral lift angle, ball-screw frictional force and propulsion flatcar frictional force
Go out the propulsive force of rockbolt installation process, pushing away of rockbolt installation process is calculated according to described rotating speed and ball screw spiral lift angle
Enter speed；
Described propulsion plant (31) includes drive mechanism (311) and ball-screw (312), and described drive mechanism (311) is fixed on
The described end installing monitor station (1), described ball-screw (312) is fixedly connected with the output shaft of drive mechanism (311), described
The feed screw nut of ball-screw (312) is fixedly connected on agitating device (32), described dynamic torque speed probe (101) peace
It is loaded on the output shaft of drive mechanism (311).
2. according to claim 1 for anchor rod anchored testing stand it is characterised in that described agitating device (32) include
Drive mechanism (311) and propulsion flatcar (322), described propulsion flatcar (322) is fixing with the feed screw nut of ball-screw (312) even
Connect, and by advancing flatcar (322) bottom surface slide block along installing monitor station (1) top surface slide rail linear slide, advance on flatcar (322)
It is installed with described drive mechanism (311), the output shaft of described drive mechanism (311) is connected with anchor pole (5), described dynamic torsion
Square speed probe (101) is installed on the output shaft of drive mechanism (311).
3. according to claim 1 and 2 for anchor rod anchored testing stand it is characterised in that described drive mechanism (311)
The moment of torsion of its output shaft and rotating speed are controlled by fluid motor-driven or passes through its output shaft of variable-frequency motor variable frequency regulating speed control
Moment of torsion and rotating speed or by the moment of torsion of servomotor its output shaft of Pulse Width Control and rotating speed.
4. according to claim 1 for anchor rod anchored testing stand it is characterised in that described installation monitor station (1)
Bearing block is installed, described ball-screw (312) is arranged on described bearing block.
5. according to claim 4 for anchor rod anchored testing stand it is characterised in that described installation monitor station (1) bottom
Portion is provided with base (11), and described base (11) is provided with slide rail, and described installation monitor station (1) is slided along described slide rail.
6. according to claim 1 for anchor rod anchored testing stand it is characterised in that described coal and rock physical model
(93) it is provided with the Anchor Agent for anchor pole (5) are adhesively fixed in boring.
7. a kind of detection method for anchor rod anchored testing stand according to any one of claim 1-6, its feature
It is, comprise the steps:
S1, will install monitor station mobile near coal and rock physical model position；
S2, to coal and rock physical model boring in add Anchor Agent；
S3, one end of anchor pole to be measured is installed on agitating device；
S4, made by propulsion plant anchor pole be axially inserted into coal and rock physical model boring in；
S5, anchor pole is made to rotate about the axis thereof by agitating device, anchor pole is sufficiently stirred for Anchor Agent；
S6, the propulsive force detecting anchor pole by dynamic torque speed probe, fltting speed, stirring moment of torsion and speed of agitator, and
Its detection information is transmitted to computer controls and data collecting system, data processing and control are carried out by computer.
8. detection method according to claim 7 is it is characterised in that drive according to propulsion plant in propulsive force described in step s6
The output torque of motivation structure, ball-screw diameter, ball screw spiral lift angle, ball-screw frictional force and propulsion flatcar frictional force
Calculate gained；Described fltting speed calculates institute according to the output speed of propulsion plant drive mechanism and ball screw spiral lift angle
?.
9. detection method according to claim 7 is it is characterised in that drive for agitating device in speed of agitator described in step s6
The output rotating speed of motivation structure；Described stirring moment of torsion is the moment of torsion of agitating device drive mechanism output shaft.
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| CN110567823A (en) * | 2019-09-29 | 2019-12-13 | 天地科技股份有限公司 | method for testing impact resistance of anchor rod anchoring body |
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| CN113252469B (en) * | 2021-04-13 | 2022-07-12 | 河海大学 | NPR anchor cable shearing failure simulation experiment device and method |
| CN114592893A (en) * | 2022-03-16 | 2022-06-07 | 东北大学 | Anchor rod anchoring synergistic structure and working method thereof |
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