CN104111201B - A kind of testing stand for testing anchor pole shock loading and method of testing - Google Patents
A kind of testing stand for testing anchor pole shock loading and method of testing Download PDFInfo
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- CN104111201B CN104111201B CN201410306755.4A CN201410306755A CN104111201B CN 104111201 B CN104111201 B CN 104111201B CN 201410306755 A CN201410306755 A CN 201410306755A CN 104111201 B CN104111201 B CN 104111201B
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Abstract
The present invention relates to technical field of mine support, relate to a kind of testing stand for testing anchor pole shock loading and method of testing.This testing stand includes the anchor pole for mine support, also include work testboard, driving means, percussion mechanism and angular encoder, described anchor rod anchored in the boring model of work testboard, described driving means is used for driving percussion mechanism, percussion mechanism is made to obtain primary power, described percussion mechanism installs the impact beam of anchor rod pallet board for instantaneous shock, so that anchor pole is applied the shock loading along its axis direction, described angular encoder is for testing the pendulum angle of described percussion mechanism, realize in experiment lab simulation suspension roof support duty, when country rock momentary breakdown releases energy, anchor pole withstands shocks load, and test out the shock loading that anchor pole bears accurately and effectively, and bolt deformation position can be carried out cutting observation.
Description
Technical field
The present invention relates to technical field of mine support, particularly relate to a kind of for testing anchor pole impact
The testing stand of load and method of testing.
Background technology
At present, suspension roof support has become coal mine roadway main support pattern safely and efficiently, at me
State's coal mine roadway obtains large scale application.Suspension roof support is in coal and rock by anchor rod anchored
In, tighten bar tail nut, to country rock Shi Hanzhang, the deformation absciss layer of constraint roadway surrounding rock,
Broken swollen with the sliding changing of the relative positions.
Coal mine roadway surrounding rock structure, nature of ground and stress condition are extremely complex, are in a large number and adopt
Tunnel in the range of pick dynamic pressure impact and Geological Structure Effect, country rock internal stress gathers necessarily
Suddenly discharging during degree, roadway surrounding rock structure is instantaneous to be suffered to destroy and causes roadway support body simultaneously
Impact.Use suspension roof support this type of have in the coal rock layer tunnel of burst trend, country rock wink
Time destroy release energy, be transferred to anchor rod body vertically by anchor rod pallet board and bar tail nut,
Make anchor pole bear axial blanking lotus, large deformation occurred in the body of rod short time, causes the carrying of anchor pole
Power reduces.Research suspension roof support process withstand shocks load time mechanical property, to in-depth anchor pole
Supporting mechanism is studied, is improved heavily stressed impact roadway bolting support reliability and ensure engineering safety
Significant.
During the load that withstands shocks in research anchor pole work process, the method for mechanical property mainly has two big
Class: underground trials and laboratory test.
Underground trials mainly tests the axially loaded of anchor pole, can only reflect that anchor pole is in surrouding rock deformation
The axial stress that is stretched in journey, bends, formed under the various external force comprehensive functions such as shearing or
Axial load, it is impossible to when test country rock momentary breakdown releases energy, the shock loading that anchor pole bears,
Deformed when can not test anchor pole by impact loading.Additionally, due to down-hole is special
Environment, the monitoring method of some advanced persons is also restrained with the application of instrument, and can monitor
Anchor pole limited amount, representative not enough.
Laboratory test currently mainly carries out the impact test of anchor rod body material test specimen, although survey
The data of examination are accurate, it is possible to the shock resistance of reflection anchor pole material.But, laboratory test is only
According to test standard, the test specimen of bolt product is directly carried out impact test, it is impossible to simulation reality
Shock loading that the anchor pole of supporting state bears when country rock momentary breakdown releases energy and deformation.
Therefore, for above not enough, need one can test lab simulation suspension roof support lane
During road country rock, country rock momentary breakdown releases energy and anchor pole applies the testing stand of shock loading
And apply the method that this testing stand tests out the shock loading that anchor pole bears accurately and effectively.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is to provide a kind of examination for testing anchor pole shock loading
Testing platform and method of testing, this testing stand makes it possible to enclose at experiment lab simulation roadway supported by bolt
During rock, country rock momentary breakdown releases energy and anchor pole is applied shock loading, and accurately has
Test out the shock loading that anchor pole bears to effect, and can be to anchor pole under impact loading
Deformation carries out cutting observation.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides a kind of for testing anchor pole shock loading
Testing stand include the anchor pole for mine support, this testing stand also includes work testboard, drives
Dynamic device, percussion mechanism and angular encoder, described anchor rod anchored in the boring of work testboard
In model, described driving means is used for driving percussion mechanism, makes described percussion mechanism obtain initial
Energy, described percussion mechanism applies the shock loading along its axis direction for instantaneous to anchor pole,
Described angular encoder is for testing the pendulum angle of described percussion mechanism.
Wherein, described driving means includes motor, electromagnetic clutch, decelerator, decelerator
Slide and decelerator tote, described decelerator is installed on decelerator slide by decelerator tote
On guide rail, described motor is installed on the input of described decelerator, the output of described decelerator
End is connected with percussion mechanism by electromagnetic clutch, is used for driving described percussion mechanism, makes impact
Device obtains primary power.
Wherein, described percussion mechanism includes pendulum, swing arm and pendulum slide, described pendulum slide
Being installed on the slide rail above described boring model, the outfan of described decelerator rotates and is arranged in
Pendulum slide and fixing with swing arm, for swing arm described in hoisting away from anchor pole, described swing arm connects
Being connected to pendulum, described pendulum is parallel to anchor pole axis direction for the edge when being rocked at minimum point
Clash into described impact beam, so that described anchor pole is applied the shock loading along its axis direction.
Wherein, described pendulum tests its pendulum by the angular encoder on described decelerator outfan
Dynamic angle.
Wherein, the quantity of described pendulum is two, and two described pendulums are respectively by swing arm position
Both sides in pendulum slide.
Wherein, the boring model exposed junction of described anchor pole is fixed on punching by pallet, nut check
Hit on beam, and in described impact beam, be additionally provided with the impact anvil block being correspondingly arranged with pendulum.
Wherein, also including locking cylinder, cushion cylinder, described cushion cylinder is along being parallel to anchor pole
The direction of axis is installed on pendulum slide, makes pendulum slide along slide rail by pushing tow pendulum slide
Sliding, and drive decelerator tote along slide, described locking cylinder is along being perpendicular to bolt shaft
The direction of line is installed on pendulum slide.
Wherein, described anchor pole one end is by the coal and rock physical model hole of Anchor Agent with boring model
Wall bonds, and the boring model exposed junction of anchor pole is fixed in impact beam by pallet, nut check.
A kind of method of testing of the testing stand for testing anchor pole shock loading, it is characterised in that
Comprise the steps:
S1, anchor pole one end to be measured is anchored in the boring model of work testboard；
S2, start driving means, make percussion mechanism hoisting to certain altitude, to obtain initial gesture
Energy；
S3, close driving means, make the free bottom of percussion mechanism and instantaneous to anchor pole apply along it
The shock loading of axis direction；
The free hoisting of percussion mechanism after S4, impact, to certain altitude, forms potential energy after impact；
S5, tested respectively by angular encoder percussion mechanism impact before and after pendulum angle, and
The shock loading of anchor pole is recorded according to the difference of potential energy after initial potential energy and impact.
Wherein, in step sl, anchor pole one end to be measured is anchored in the boring of work testboard
In model, the boring model exposed junction of anchor pole is fixed in impact beam by pallet, nut check,
And fastening nut applies pretightning force, it is accurately positioned rushing of pendulum impact beam by cushion cylinder
Hit a little, and the reverse impact power produced when absorbing pendulum impact beam, by its hydraulic system
The direct-acting overflow valve off-load installed, reduces the system boost that reverse impact power causes, with to liquid
Pressure system is protected；And, according to anchor pole axial deflection, made by cushion cylinder pushing tow
For pendulum slide, to drive pendulum slide to slide along slide rail and decelerator tote is along slide,
Make the impact anvil block surface that pendulum is adjacent in impact beam when free hang；By locking oil
Percussion mechanism is locked at the accurate location of Impulsive load by cylinder；
In step s 2, by motor-driven reductor, through electromagnetic clutch rotate swing arm with
Hoisting pendulum, makes pendulum hoisting to certain altitude obtain initial potential energy, and controls motor adjustment
The initial hoisting angle of pendulum, to change the initial potential energy that pendulum obtains；
In step s3, moment loosens the clutch, and makes the pendulum bottom and along parallel at minimum point
In the direction impact beam of anchor pole axis, after the shock loading of pendulum passes to anchor rod pallet board,
Act on the body of rod of anchor pole along the direction of anchor pole axis through nut；
In step s 4, pendulum free hoisting after impact beam, to certain altitude, forms punching
Hit rear potential energy；
In step s 5, the hoisting angle of pendulum before and after utilizing angular encoder record to impact, and
According to the potential variation before and after pendulum impact beam to measure the shock loading of anchor pole.
(3) beneficial effect
The technique scheme of the present invention has the advantages that the present invention is for testing anchor pole
The testing stand of shock loading realizes, during experiment lab simulation roadway supported by bolt country rock, enclosing
Rock momentary breakdown releases energy and anchor pole is applied shock loading, and tests out anchor accurately and effectively
The shock loading that bar bears, and anchor pole deformation under impact loading can be carried out cutting
Observe, provide for the Design of bolt support under anchor rod supporting theory research and complex stress condition and depend on
According to, to in-depth bolt support mechanism research, improve suspension roof support reliability and ensure engineering safety
Significant.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention is for testing the axonometric chart of the testing stand of anchor pole shock loading；
Fig. 2 is that the embodiment of the present invention is for testing the sectional view of the testing stand of anchor pole shock loading.
Wherein, 2: work testboard；5: anchor pole；8: percussion mechanism；20: driving means；
62: impact beam；81: pendulum；82；Swing arm；83: pendulum slide；84: locking cylinder；
85: cushion cylinder；93: coal and rock physical model；107: angular encoder；201: electronic
Machine；202: electromagnetic clutch；203: decelerator；204: decelerator slide；205: slow down
Device tote.
Detailed description of the invention
With embodiment, embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
In describing the invention, except as otherwise noted, " multiple " are meant that two or two
Above；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ",
The orientation of the instruction such as " head ", " afterbody " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", "
Three " etc. it is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixing even
Connect, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to
It it is 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 can be understood in the present invention with concrete condition
Concrete meaning.
As shown in Figure 1-2, a kind of testing stand for testing anchor pole shock loading that the present invention provides
Including the anchor pole 5 for mine support, this testing stand also includes work testboard 2, driving means
20, percussion mechanism 8 and angular encoder 107, anchor pole 5 is anchored in the boring of work testboard 2
In model, making percussion mechanism 8 obtain primary power, percussion mechanism 8 is for instantaneous to anchor pole 5
Applying the shock loading along its axis direction, angular encoder 107 is used for testing percussion mechanism 8
Pendulum angle.
In order to realize Automated condtrol, the driving means 20 of this testing stand include motor 201,
Electromagnetic clutch 202, decelerator 203, decelerator slide 204 and decelerator tote 205, subtract
Speed device 203 is installed on the guide rail of decelerator slide 204 by decelerator tote 205, can be
Linear slide on guide rail.Motor 201 is installed on the input of decelerator 203, motor 201
Power support is provided, it is preferable that decelerator 203 is double worm speed reducers for decelerator 203；
And, the outfan of decelerator 203 is connected with percussion mechanism 8 by electromagnetic clutch 202,
For driving percussion mechanism 8 away from anchor pole 5.
Correspondingly, percussion mechanism 8 includes pendulum 81, swing arm 82 and pendulum slide 83, pendulum
Slide 83 be installed on boring model above slide rail on, pendulum slide 83 can on slide rail straight line
Sliding, the outfan of decelerator 203 rotates and is arranged in pendulum slide 83, when pendulum slide 83
Slide rail can drive decelerator 203 synchronize along the guide rail of decelerator slide 204 during linear slide
Linear slide；And, the outfan of decelerator 203 is fixed, for hoisting swing arm with swing arm 82
82 away from anchor pole 5, meanwhile, swing arm 82 connects and has pendulum 81, and drive pendulum 81 to swing
To certain altitude.Instantaneous unclamping electromagnetic clutch 202 so that pendulum 81 bottom, pendulum 81 is used
It is parallel to anchor pole 5 axis direction impact beam 62, with right in the edge when being rocked at minimum point
Anchor pole 5 applies the shock loading along its axis direction.
The boring model exposed junction of anchor pole 5 therein is fixed on impact by pallet, nut check
On beam 62, and in impact beam 62, it is additionally provided with the impact anvil block being correspondingly arranged with pendulum 81.
And, control motor 201 and adjust the initial hoisting angle of pendulum 81, thus it is possible to vary pendulum
The initial potential energy of hammer 81 acquisition, and then adjust shock loading.Pendulum 81 is at impact beam 62
Front and back, its pendulum angle is tested by the angular encoder 107 on decelerator 203 outfan.
Pendulum angle includes impacting front pendulum 81 hoisting to pendulum after pivot angle during certain altitude and impact
81 free backswing are to the pivot angle of certain altitude.
Preferably, the quantity of pendulum 81 is two, and two pendulums 81 are respectively by swing arm 82
It is positioned at the both sides of pendulum slide 83.
Additionally, this testing stand also includes locking cylinder 84, cushion cylinder 85, locking cylinder 84
It is installed on pendulum slide 83 along the direction being perpendicular to anchor pole 5 axis, for by percussion mechanism 8
Being locked at the accurate location of Impulsive load, cushion cylinder 85 is along the direction being parallel to anchor pole 5 axis
It is installed on pendulum slide 83, makes pendulum slide 83 sliding along slide rail by pushing tow pendulum slide 83
Dynamic, and drive decelerator tote 205 along slide, to be accurately positioned impact position, absorb
The reverse impact power produced during pendulum 81 impact beam 62；Before applying shock loading, pass through
Passage pendulum slide 83 is to be accurately positioned shock point, and cushion cylinder 85 can effectively absorb pendulum 81
The reverse impact power produced during impact beam 62, and the Direct Action Type installed by hydraulic system is excessive
Stream valve off-load, reduces the system boost that reverse impact power causes, effectively protects hydraulic system
Protect.
Can be according to anchor pole 5 axial deflection, cushion cylinder 85 pushing tow pendulum slide 83 also drives
Decelerator tote 205 moves linearly along respective guide rail, make pendulum 81 when free hang,
The impact anvil block surface that pendulum 81 impact end surface is adjacent in impact beam 62, it is ensured that pendulum 81 exists
Lowest point impact beam 62, and the initial potential energy making pendulum 81 obtain is completely converted into dynamic
Can be to realize instantaneous enforcement impact.
The beater mechanism of this testing stand uses multiple locking, it is ensured that operator and equipment safety.
Mutual locking between cushion cylinder and rig floor drawback cylinder, when anchor pole 5 is installed, beater mechanism can not
Start；The dead electricity type electromagnetic clutch that beater mechanism uses, makes beater mechanism in off working state
Lower locking, pendulum 81 can not freely swing.
Additionally, in order to ensure to test the verity of data, anchor pole 5 is by Anchor Agent and drilling die
The coal and rock physical model 93 of type bonds.
Further, coal and rock physical model 93 is preferably real coal or rock, additionally, coal
Rock mass physical model 93 is alternatively the drilling die that the Other Engineering material similar to coal, rock is made
Type；Anchor Agent is by unsaturated polyester resin, firming agent, accelerator and other adjuvant, by one
The thick anchoring adhesives that certainty ratio is formulated, by mylar segmentation packaging in cylinder
Shape powder stick, has normal temperature cure after stirring fast, and adhesive strength is high, and anchor force is reliable and endurance
Wait well premium properties, it is ensured that the verity of test data.
The present invention also provides for the method for testing of a kind of testing stand for testing anchor pole shock loading,
Comprise the steps:
S1, anchor pole one end to be measured is anchored in the boring model of work testboard；
S2, start driving means, make percussion mechanism hoisting to certain altitude, to obtain initial gesture
Energy；
S3, close driving means, make percussion mechanism instantaneous to anchor pole apply along its axis direction
Shock loading；
The free hoisting of percussion mechanism after S4, impact, to certain altitude, forms potential energy after impact；
S5, tested respectively by angular encoder percussion mechanism impact before and after pendulum angle, and
The impact energy that anchor pole is absorbed is recorded according to the difference of potential energy after initial potential energy and impact.
Wherein, in step sl, anchor pole one end to be measured is anchored in the boring of work testboard
In model, the boring model exposed junction of anchor pole is fixed in impact beam by pallet, nut check,
And fastening nut applies pretightning force, it is accurately positioned rushing of pendulum impact beam by cushion cylinder
Hit a little, and the reverse impact power produced when absorbing pendulum impact beam, by its hydraulic system
The direct-acting overflow valve off-load installed, reduces the system boost that reverse impact power causes, with to liquid
Pressure system is protected；And, according to anchor pole axial deflection, made by cushion cylinder pushing tow
For pendulum slide, to drive pendulum slide to slide along slide rail and decelerator tote is along slide,
Make the impact anvil block surface that pendulum is adjacent in impact beam when free hang；By locking oil
Percussion mechanism is locked at the accurate location of Impulsive load by cylinder；
In step s 2, by motor-driven reductor, through electromagnetic clutch rotate swing arm with
Hoisting pendulum, makes pendulum hoisting to certain altitude obtain initial potential energy, and controls motor adjustment
The initial hoisting angle of pendulum, to change the initial potential energy that pendulum obtains；
In step s3, moment loosens the clutch, and makes the pendulum bottom and along parallel at minimum point
In the direction impact beam of anchor pole axis, after the shock loading of pendulum passes to anchor rod pallet board,
Act on the body of rod of anchor pole along the direction of anchor pole axis through nut；
In step s 4, pendulum free hoisting after impact beam, to certain altitude, forms punching
Hit rear potential energy；
In step s 5, the hoisting angle of pendulum before and after utilizing angular encoder record to impact, and
The shock loading of anchor pole is measured according to the potential variation before and after pendulum impact beam.
In sum, the present invention realizes at laboratory for the testing stand testing anchor pole shock loading
Interior simulation anchor pole is in the coal layer tunnel with burst trend, and country rock momentary breakdown releases energy
Time anchor pole stress；And test out the shock loading that anchor pole bears accurately and effectively, and
And bolt deformation position can be carried out cutting observation, for anchor rod supporting theory research and complex stress
Under the conditions of Design of bolt support provide foundation, to in-depth bolt support mechanism research, raising anchor
Bar supporting reliability and guarantee engineering safety are significant.
Embodiments of the invention are given for the sake of example and description, and are not nothing left
Leakage or limit the invention to disclosed form.Many modifications and variations are for this area
It is apparent from for those of ordinary skill.Selecting and describing embodiment is to more preferably illustrate
The principle of the present invention and actual application, and make those of ordinary skill in the art it will be appreciated that this
Invent thus design the various embodiments with various amendments being suitable to special-purpose.
Claims (7)
1. for testing a testing stand for anchor pole shock loading, including the anchor for mine support
Bar (5), it is characterised in that also include work testboard (2), driving means (20), impact
Device (8) and angular encoder (107), described anchor pole (5) is anchored in work testboard (2)
Boring model in, described driving means (20) is used for driving percussion mechanism (8), makes described
Percussion mechanism (8) obtains primary power, and described percussion mechanism (8) is for instantaneous to anchor pole (5)
Applying along the shock loading of its axis direction, described angular encoder (107) is used for testing described
The pendulum angle of percussion mechanism (8)；
Described driving means (20) includes motor (201), electromagnetic clutch (202), subtracts
Speed device (203), decelerator slide (204) and decelerator tote (205), described decelerator (203)
It is installed on the guide rail of decelerator slide (204) by decelerator tote (205), described electricity
Motivation (201) is installed on the input of described decelerator (203), described decelerator (203)
Outfan be connected with percussion mechanism (8) by electromagnetic clutch (202), be used for driving institute
State percussion mechanism (8), make described percussion mechanism (8) obtain primary power；
Described percussion mechanism (8) includes pendulum (81), swing arm (82) and pendulum slide (83),
Described pendulum slide (83) is installed on the slide rail above described boring model, described decelerator
(203) outfan rotates and is arranged in pendulum slide (83) and fixes with swing arm (82), uses
In swing arm described in hoisting (82), the upper connection of described swing arm (82) has pendulum (81), described pendulum
Hammer (81) is parallel to anchor pole (5) axis direction for the edge when being rocked at minimum point and clashes into punching
Hit beam (62), so that described anchor pole (5) is applied the shock loading along its axis direction；
Also include locking cylinder (84), cushion cylinder (85), described cushion cylinder (85) edge
The direction being parallel to anchor pole (5) axis is installed on pendulum slide (83), by pushing tow pendulum
Slide (83) makes pendulum slide (83) slide along slide rail, and drives decelerator tote (205)
Along slide, described locking cylinder (84) is installed along the direction being perpendicular to anchor pole (5) axis
On pendulum slide (83).
Testing stand for testing anchor pole shock loading the most according to claim 1, it is special
Levying and be, described pendulum (81) is by the angular coding on described decelerator (203) outfan
Its pendulum angle tested by device (107).
Testing stand for testing anchor pole shock loading the most according to claim 2, it is special
Levying and be, the quantity of described pendulum (81) is two, and two described pendulums (81) are respectively
The both sides of pendulum slide (83) it are positioned at by swing arm (82).
Testing stand for testing anchor pole shock loading the most according to claim 3, it is special
Levying and be, the boring model exposed junction of described anchor pole (5) is fixed on by pallet, nut check
In impact beam (62), and in described impact beam (62), it is additionally provided with set corresponding with pendulum (81)
The impact anvil block put.
Testing stand for testing anchor pole shock loading the most according to claim 4, it is special
Levying and be, described anchor pole (5) one end is by the coal and rock physical model of Anchor Agent with boring model
(93) hole wall bonding, the boring model exposed junction of anchor pole (5) is fastened by pallet, nut lock
In impact beam (62).
6. test anchor pole shock loading according to being used for according to any one of claim 1-5 for one kind
The method of testing of testing stand, it is characterised in that comprise the steps:
S1, anchor pole one end to be measured is anchored in the boring model of work testboard；
S2, start driving means, make percussion mechanism hoisting to certain altitude, to obtain initial gesture
Energy；
S3, close driving means, make percussion mechanism instantaneous to anchor pole apply along its axis direction
Shock loading；
The free hoisting of percussion mechanism after S4, impact, to certain altitude, forms potential energy after impact；
S5, tested respectively by angular encoder percussion mechanism impact before and after pendulum angle, and
The impact energy that anchor pole is absorbed is recorded according to the difference of potential energy after initial potential energy and impact.
Method of testing the most according to claim 6, it is characterised in that
In step sl, anchor pole one end to be measured is anchored in the boring model of work testboard,
The boring model exposed junction of anchor pole is fixed in impact beam by pallet, nut check, and tightens
Nut applies pretightning force, is accurately positioned the shock point of pendulum impact beam by cushion cylinder,
And the reverse impact power produced when absorbing pendulum impact beam, installed by its hydraulic system
Direct-acting overflow valve off-load, reduces the system boost that reverse impact power causes, with to hydraulic system
Protect；And, according to anchor pole axial deflection, by cushion cylinder thrusting action in pendulum
Hammer slide, with drive pendulum slide along slide rail slide and decelerator tote along slide, make pendulum
The impact anvil block surface that hammer is adjacent in impact beam when free hang；Will by locking cylinder
Percussion mechanism is locked at the accurate location of Impulsive load；
In step s 2, by motor-driven reductor, through electromagnetic clutch rotate swing arm with
Hoisting pendulum, makes pendulum hoisting to certain altitude obtain initial potential energy, and controls motor adjustment
The initial hoisting angle of pendulum, to change the initial potential energy that pendulum obtains；
In step s3, moment loosens the clutch, and makes the pendulum bottom and along parallel at minimum point
In the direction impact beam of anchor pole axis, after the shock loading of pendulum passes to anchor rod pallet board,
Anchor rod body is acted on along the direction of anchor pole axis through nut；
In step s 4, pendulum free hoisting after impact beam, to certain altitude, forms punching
Hit rear potential energy；
In step s 5, the hoisting angle of pendulum before and after utilizing angular encoder record to impact, and
The shock loading of anchor pole is measured according to the potential variation before and after pendulum impact beam.
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| CN201410306755.4A CN104111201B (en) | 2014-06-30 | 2014-06-30 | A kind of testing stand for testing anchor pole shock loading and method of testing |
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| CN201410306755.4A CN104111201B (en) | 2014-06-30 | 2014-06-30 | A kind of testing stand for testing anchor pole shock loading and method of testing |
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| CN2494982Y (en) * | 2001-02-27 | 2002-06-12 | 唐振廷 | Digital ballistic testing machine |
| CN2575655Y (en) * | 2002-11-05 | 2003-09-24 | 长春市智能仪器设备有限公司 | Miniflow control chip detecting apparatus |
| CN102466554A (en) * | 2010-11-17 | 2012-05-23 | 西北机器有限公司 | Shock response spectrum test machine |
| CN103134725B (en) * | 2011-11-29 | 2014-11-05 | 中国科学院武汉岩土力学研究所 | Anchor rod performance test device |
| CN103471941B (en) * | 2013-09-18 | 2015-07-15 | 山东科技大学 | Anchor rod shock resistance simulation test system |
| CN204064825U (en) * | 2014-06-30 | 2014-12-31 | 天地科技股份有限公司 | A kind of testing table for testing anchor pole shock load |
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2014
- 2014-06-30 CN CN201410306755.4A patent/CN104111201B/en active Active
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