CN107221236A - A kind of rock disturbance generating mechanism and its relaxation disturbance comprehensive experimental device - Google Patents
A kind of rock disturbance generating mechanism and its relaxation disturbance comprehensive experimental device Download PDFInfo
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- CN107221236A CN107221236A CN201710636622.7A CN201710636622A CN107221236A CN 107221236 A CN107221236 A CN 107221236A CN 201710636622 A CN201710636622 A CN 201710636622A CN 107221236 A CN107221236 A CN 107221236A
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- 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
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- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
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- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G01N2203/0014—Type of force applied
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- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
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Abstract
The invention discloses a kind of rock disturbance generating mechanism, including, the first riser, the 3rd riser are fixed with the second guide rod between the first riser and the 3rd riser, the second guide rod passes through bogie；Driving leading screw by threaded engagement is assembled through bogie, the first riser and the 3rd riser and with bogie, and the output shaft of driving leading screw through the 3rd riser one end and loading motor is connected；Shock plate can be slided on the first guide rod；Shock plate is dorsad connected provided with impact disc end face with impact guide rod one end, and impact spring is cased with impact guide rod and the impact guide rod other end is provided with impact guide end；Autoloading structure is provided with bogie；Loading motor bottom is provided with motor supporting plate；Impacting shaft one end is provided with all mounting heads, and the other end through the first riser and is provided with secondary impact disc through first riser one end；Impacting shaft is connected by connecting shaft component with loading axis.The invention also discloses the relaxation disturbance comprehensive experimental device that application has above-mentioned rock disturbance generating mechanism.
Description
Technical field
The present invention relates to a kind of Rock Mechanics Test device, more particularly to a kind of rock for being used to test rock disturbance is disturbed
Dynamic generating mechanism and its relaxation-disturbance comprehensive experimental device.
Background technology
Stress rheological phenomena is seen everywhere in rock mass engineering project, the excavation supporting such as some underground chambers, tunnel, tunnel
Can occur rheological phenomena through rock after a while afterwards, and these rheological phenomenas usually contain the creep and relaxation of rock.It is right
In the rock mass in rheology, under the disturbance of the blast load of stope, rheological effect can be further obvious, it is possible to occurs to accelerate stream
Become, so as to cause the generation of mine power disaster.Particularly deeps mines underground mining is often faced with such as rock burst, gushing water, top
Plate large area is pressed and the disaster such as goaf unstability, and these phenomenons are directed to rock or the long-term relaxation effect of rock mass and instantaneous
Dynamic disturbances be combined problems in role.The relaxation effect of rock is a long-term process, and the dynamic such as explosion, mechanical oscillation
Disturbance is a transient effects for lithological effects, and both differ larger in time scale, so few people are in test
Consider influence of the collective effect to material properties of rock of both effects.Therefore, under research trends disturbing influence rock pine
The permanent support of stability and design underground rock project of the relaxation effect for evaluating underground excavation space has important theory
Meaning.
It is due to carry out stress relaxation examination although the importance of effect study it has been recognized that rock relaxes
Need to control the strain of rock sample constant when testing, it is desirable to which experimental facilities has the performance for keeping constant displacement to load for a long time,
Experimental technique difficulty is larger, and related research is less.
In the A of Publication No. CN 104181029 Chinese invention patent propose and a kind of pendulum loading in strain rate disturb
The experimental rig and method of dynamic lower rock relaxation, it produces disturbance by pendulum, with test rock in a relaxed state by
Stress state during disturbance.Although this method simple possible, need to manually adjust pendulum when using, but also it is continuous
The impulsive force that pendulum angle can be generated is calculated, it is cumbersome.In addition be exactly pendulum rotation impact process in there is larger peace
Full hidden danger, if operator neglects, it is likely that injured or hit other articles.
Also be exactly progress relax-disturbance experiments when, it is sometimes desirable to rock sample apply confined pressure, this is accomplished by sample
Residing space filling hydraulic oil, also implying that needs that the space residing for sample is needed to set opening, and also can guarantee that
The sealing of this opening；Certainly, part Experiment directly can be substituted using three-axis tester, but most of three-axis tester
Opening in underface and sample placement direction is all vertical direction perpendicular to the ground, and in the horizontal direction due to its width or
Length is not enough placed, and general three-axis tester is usually that sample is first compressed on sample axial direction when clamping sample in addition,
Then again by loading shell sealing fastening, this total sample that is easily caused is shifted, and influences experimental result.Therefore think can be with by applicant
By opening design in side, sample so can either be conveniently placed, ensure that sample is consolidated before loading shell sealing again
Determine and in design attitude.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of rock disturbance hair
Life structure, it is used to produce impulsive force to disturb experiment.
Present invention also offers relaxation-disturbance Comprehensive Experiment that application has its above-mentioned experimental provision rock disturbance generating mechanism
Device, its can to experiment progress relax-disturb Comprehensive Experiment.
To achieve the above object, the invention provides a kind of rock disturbance generating mechanism, it is characterized in that：Including first stands
Plate, the 3rd riser, the first described riser and the 3rd riser bottom are connected and the first described riser and the 3rd with supporting plate
The second guide rod is fixed between riser, the second described guide rod passes through bogie；Leading screw is driven to be stood through bogie, first
Plate and the 3rd riser and rotatably assemble, assembled with bogie by threaded engagement with the first riser and the 3rd riser, it is described
The output shaft of leading screw through the 3rd riser one end and loading motor is driven to connect；Secondary impact disc is contacted with impact disc to be held out against；
Described impact disc is fixed on shock plate, and described shock plate and impact disc collectively forms impact plate；
First guide rod passes through shock plate and two ends are connected with the first riser and the 3rd riser respectively, and described shock plate can
To be slided on the first guide rod；
Described shock plate is dorsad connected provided with impact disc end face with impact guide rod one end, described impact guide rod
On be cased with impact spring and the described impact guide rod other end is provided with impact guide end, described impact guide end diameter is big
Be oriented to shank diameter and described impact guide end in impact and be fitted into and impact in the guide cylinder of guide cylinder, described impact guide rod from
Passed in spacing bore；Described position-limiting drum bore dia is less than guide cylinder diameter；Autoloading structure is provided with bogie；
Described loading motor bottom is provided with motor supporting plate, and described motor supporting plate is fixed on the 3rd riser and added for carrying
Carry motor；Impacting shaft one end is provided with all mounting heads, and the other end provided with secondary impacts through the first riser and through first riser one end
Disk；Described impacting shaft is connected by connecting shaft component with loading axis；
Block plate is provided with impacting shaft；Pressure sensor is also equipped with described guide cylinder from left to right, plug, reset is held out against
Spring, described pressure sensor, holds out against plug, back-moving spring and is adjacent to assembling successively.
As a further improvement on the present invention, described autoloading structure, including, crawl motor, motor supporting plate are described
The crawl output shaft for picking up motor pass through after motor supporting plate and to be connected with total drive helical gear；
Described total drive helical gear and a point drive helical gear engaged transmission, described point drive helical gear are connected with crawl drive shaft one end
Fixed, the described crawl drive shaft other end is rotatably assembled through axle bearing piece and with axle bearing piece；
Described axle bearing piece bottom is connected with support beam；Cam, described cam are fixed with described crawl drive shaft
Held out against with switch inserted block top contact；Described switch inserted block is fitted into the inner cylinder A621 of switch cylinder.
As a further improvement on the present invention, described connecting shaft component, including it is arranged on the first connection of flexible shaft end
Head, adapter sleeve, the second connector for being arranged on loading shaft end；
Provided with connection inner cylinder in described adapter sleeve, described connection inner cylinder includes big end cylinder and small end cylinder, described telescopic shaft
Is fitted into through small end cylinder and the first connector in big end cylinder, provided with axial compressive force sensor on the right side of the first described connector, institute
The second connector stated is provided with wire through-hole, and the wire of described axial compressive force sensor is passed from wire through-hole；Described
Connection inner cylinder screws assembling by screw thread and the second connector.
As a further improvement on the present invention, support beam and cam corresponding position are provided with slot to make way；
Described switch inserted block is provided with spring mounting post provided with inserted block body part, inserted block drive part, bottom, and described inserts
Block drive part and the driving guide groove being arranged in inner cylinder are assembled；
Described inserted block drive part has multiple, and resigning gap, driving inclined-plane are provided between two inserted block drive parts, described
Driving inclined-plane and resigning gap between formed one be obtuse angle angle；
Described switch drum outer wall, which is provided with to constitute between guiding projection, two guiding projections, is oriented to board slot, the ring body of expansion ring
It is partially loaded in guiding board slot and relative with being oriented to board slot can slides；
The open end of described ring part is connected through switch cylinder and with closed plate, and described ring part is close to impact
Screens projection is fixed with plate side, and described ring part inner side is that screens is raised and is just provided with screens projection, institute to place
The screens projection stated enters driving guide groove through switch cylinder；
During original state, described screens projection is assembled with resigning gap, and now, described screens is raised to hold with shock plate
It is not overlapping on face；
Screens spring is provided with the inside of described closed plate between switch drum outer wall, described screens spring, which is used for generation, makes screens
The raised thrust away from shock plate.
Also include spring catch, described spring catch is passed through after closed plate, screens spring and is connected with switch cylinder；
Described spring mounting post at the top of support spring with assembling, described support spring bottom and the spring mounting post in capping
Assembling, described capping is fixed on switch cylinder bottom.
A kind of application has relaxation-disturbance comprehensive experimental device of above-mentioned rock disturbance generating mechanism, in addition to frame, relaxation
Mechanism for testing；Described frame, including, bottom plate, side plate, back plate, top plate, described side plate, back plate bottom and top respectively with
Bottom plate and top plate are connected, and connect, be fixed with below supporting plate, described supporting plate provided with for depositing hydraulic pressure between two blocks of side plates
The fuel tank of oil；Loose mechanism for testing, rock disturbance generating mechanism are fixed with described supporting plate；
Described relaxation mechanism for testing, including, load cylinder, described load cylinder has three and is arranged in load shell
For on three axial directions of origin, the telescopic shaft of described load cylinder is connected by connecting shaft component with loading axis respectively；Described
Loading axis through loading shell enter loading shell in sample outer surface compress.
As a further improvement on the present invention, described relaxation mechanism for testing, including, load cylinder, loading shell, loading
Axle, cover plate assembly, lifting assembly；
LOADED CAVITY is provided with described loading shell, described loading axis enters in LOADED CAVITY through loading shell, described LOADED CAVITY
In rock sample is installed；
Described loading shell opener end face is provided with engaging screw rod, and described engaging screw rod is fitted into the connecting hole of cover plate assembly will
Cover plate assembly and loading shell assembling；
Described cover plate assembly, including, the collar is oriented to, the inside of the described guiding collar, which is provided with, is oriented to inner cylinder, described guiding
The inwall of inner cylinder is provided with half groove of guiding；
The described groove of guiding half is assembled with the guiding raised line on cover plate shell outer wall, and installation cavity is provided with described cover plate shell, described
Installation cavity in main sliding tooth, driven small tooth be installed, described main sliding tooth is intermeshed with driven small tooth and forms gear
Drive mechanism；
Described driven small tooth provided with assembling screw, the described assembling screw assembling screw coaxial and described with connecting hole and
Engaging screw rod is assembled by threaded engagement；
Described installation cavity is sealed by shrouding disc, and described shrouding disc is provided with shrouding disc through hole, described shrouding disc through hole and assembling
Screw is coaxial；
Described main sliding tooth both sides are equipped with installation base, wherein the installation base close to shrouding disc side drives provided with hexagonal
Post, described hexagonal driving post is fitted into the driving through hole of shrouding disc；
Bearing mounting ring is equipped with the inside of described installation cavity, on the inside of shrouding disc, described bearing mounting ring is filled with main shaft bearing outer-ring
With fixation, described base bearing inner ring is assembled with installation base to be fixed；
Be respectively equipped with a thrust ball bearing in described driven small tooth both ends of the surface, described one blowout patche of thrust ball bearing with from
Move small increment face to fix, another on the inside of installation cavity or on the inside of shrouding disc with being fixed；Described thrust ball bearing with it is driven small
Tooth is coaxial.
As a further improvement on the present invention, open end 0-0.5cm sections of described engaging screw rod is not provided with screw thread and diameter
It is slightly less than engaging screw rod and threaded part is set.
As a further improvement on the present invention, described cover plate shell is additionally provided with sealing block on loading shell side, described
Sealing block be fixed with secondary loading axis on the end face of loading shell one end, described secondary loading axis and with its just to loading axis
Coaxially；
Described guiding collar footprint is connected by connecting plate with being connected batten, and described connection batten bottom fixes hinged
Block is connect, described hinged block at the top of lifter plate with being hinged, and described lifter plate there are two pieces and two pieces of lifter plates intersect and intersected
Place is hinged, and described lifter plate bottom is connected with the first slide-bar or the second slide-bar respectively.
As a further improvement on the present invention, described lifting assembly, including lifter plate, the first slide-bar and the second slide-bar,
Lifting pedestal, described the first slide-bar, the second slide-bar, which are respectively charged into, to be arranged in the lifting guide groove of lifting guide plate, described
First slide-bar one end is connected with lifting motor, and by lifting motor it can be driven to rotate；
The first described slide-bar two ends pass and are separately installed with lifting sliding tooth, described liter on lifting guide groove and external part
Drop sliding tooth engages with the lifting pinion rack being fixed on lifting supporting plate and forms rack pinion structure；Described lifting
Guide plate bottom is connected with lifting supporting plate；
Described lifting supporting plate bottom is provided with guide runner, and described lifting guide runner loads the liter being arranged on lifting pedestal
Drop in guide chute；
The first limiting plate and the second limiting plate are additionally provided with described lifting pedestal, the first described limiting plate is used to limit lifting
The position of supporting plate, prevents lifting supporting plate from skidding off lifting pedestal from first limiting plate one end is provided with；
The second described limiting plate is being provided with hinged groove with lifting guide chute corresponding position；
Described lifting supporting plate is hinged with movable support rod one end, and the described movable support rod other end is hinged at pedal,
Described pedal is provided with pedal hinged block and treadle supporting block, and described pedal hinged block is fitted into hinged groove and by pedal
Jointed shaft is hinged with the second limiting plate；
Described treadle supporting block is used for support pedal, makes support pedal parallel with support pedal with lifting pedestal.
The beneficial effects of the invention are as follows：
1st, rock disturbance generating mechanism of the invention can realize the automation impact to impacting shaft, and can be passed according to pressure
Data, impact spring to length, the coefficient of elasticity of impact spring, the reduction length of secondary impact disc of sensor etc. are given to converse
The impulsive force of impacting shaft, this conversion can be by what computer was directly calculated, very convenient to use.
2nd, relaxation mechanism for testing of the invention can realize effective clamping to sample, and can by its cover plate assembly
The sealing to loading shell is realized, above-mentioned cover plate assembly employs gear, engaging screw rod and assembled with loading shell, can either be realized
The quick assembling of cover plate, ensure that effective fixed, assembling of cover plate assembly again.
3rd, the present invention can realize relaxation-disturbance Comprehensive Experiment, can more truly go back original sample in underground
Real bearing state, can provide effective reference for design, the construction in later stage.
Brief description of the drawings
Fig. 1 is a kind of structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment.
Fig. 2 is a kind of structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment.
Fig. 3 is a kind of structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment.
Fig. 4 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Fig. 5 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Fig. 6 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Fig. 7 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Fig. 8 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Fig. 9 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Figure 10 is a kind of rock disturbance generating mechanism knot of relaxation of the invention-disturbance comprehensive experimental device embodiment
Structure schematic diagram.
Figure 11 is a kind of switch inserted block structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 12 is that a kind of relaxation mechanism for testing structure of relaxation of the invention-disturbance comprehensive experimental device embodiment is shown
It is intended to.
Figure 13 is a kind of connecting shaft modular construction signal of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 14 is that a kind of relaxation mechanism for testing structure of relaxation of the invention-disturbance comprehensive experimental device embodiment is shown
It is intended to.
Figure 15 is a kind of cover plate assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 16 is a kind of cover plate assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 17 is a kind of cover plate assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 18 is a kind of cover plate assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 19 is a kind of lifting assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 20 is a kind of lifting assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 21 is a kind of lifting assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 22 is a kind of lifting assembly structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Figure 23 is a kind of lifting pedestal structural representation of relaxation of the invention-disturbance comprehensive experimental device embodiment
Figure.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Referring to Fig. 1-Fig. 3, a kind of relaxation-disturbance comprehensive experimental device, including frame, rock disturbance generating mechanism A, relaxation test
Mechanism；Described frame, including, bottom plate 110, side plate 120, back plate 130, top plate 140, described side plate 120, the bottom of back plate 130
Portion and top are connected with bottom plate 110 and top plate 140 respectively, connected between two blocks of side plates 120, be fixed with supporting plate 150, described
The lower section of supporting plate 150 be provided with the fuel tank 500 for being used for depositing hydraulic oil；
Loose mechanism for testing, rock disturbance generating mechanism A, described relaxation mechanism for testing, bag are fixed with described supporting plate 150
Include, load cylinder 210, described load cylinder 210 can be three and be arranged in load shell 300 for three of origin
On axial direction（X、Y、Z）, the telescopic shaft 211 of described load cylinder 210 is connected by connecting shaft component D with loading axis 220 respectively；
Described loading axis 220 through loading shell 300 enter loading shell in the outer surface of sample 400 compress；
Referring to Fig. 4 to Figure 11, described rock disturbance generating mechanism A, including, the first riser A110, the 3rd riser A130 are described
The first riser A110 and the 3rd riser A130 bottoms and supporting plate 150 are connected and the first described riser A110 and the 3rd is vertical
The second guide rod A210, the second described guide rod A210 is fixed between plate A130 and passes through bogie A150 and described driving
Frame A150 can be in the second guide rod A210 axle upward slidings；
Drive leading screw A220 through bogie A150, the first riser A110 and the 3rd riser A130 and with the first riser A110 and the
Three riser A130 are rotatably assembled, assembled with bogie A150 by threaded engagement, and described driving leading screw A220 passes through the 3rd
The one end of riser 130 is connected with loading motor A510 output shaft, and described loading motor A510 can drive driving leading screw A220 to turn
It is dynamic；
Further, described loading motor A510 bottoms are fixed on provided with motor supporting plate A140, described motor supporting plate A140
On 3rd riser A130 and for carrying loading motor A510.
The one end of impacting shaft 230 is provided with all mounting heads 231, and the other end is through the first riser A110 and passes through the first riser A110
One end is provided with secondary impact disc A233；Described impacting shaft 230 is connected by connecting shaft component with loading axis；
It is possible to further set block plate 232 on impacting shaft 230, in use, described block plate and the first riser A110 are pushed up
Tightly.This design can prevent impacting shaft 230 due to the pressure of load cylinder 210 to shifting inside rock disturbance generating mechanism
It is dynamic, so as to influence experiment effect or even damage rock disturbance generating mechanism.
Described secondary impact disc A233 is contacted with impact disc A161 to be held out against, in use, described impact disc A161 is rushed with secondary
Disk A233 head-on collisions are hit to produce impulsive force to impacting shaft 230；
Described impact disc A161 is fixed on shock plate A162, and described shock plate A162 and impact disc A161 collectively forms punching
Hit plate A160；
First guide rod A230 is through shock plate A162 and two ends are connected solid with the first riser A110 and the 3rd riser A130 respectively
Fixed, described shock plate A162 can be slided on the first guide rod A230；
Described shock plate A162 is dorsad connected provided with impact disc A161 end faces with impact guide rod A410 one end, described
Impact guide rod A410 on be cased with impact spring A300 and the described impact guide rod A410 other ends provided with impact be oriented to
A411 is held, described impact guide end A411 diameters are more than impact guide rod A410 diameters and described impact guide end A411 dresses
In the guide cylinder A421 for entering to impact guide cylinder A420, described impact guide rod A410 is passed from spacing bore A422；
Described spacing bore A422 diameters are less than guide cylinder A421 diameters；
In described guide cylinder A421 from left to right（Fig. 7 is defined）Pressure sensor A920 is also equipped with, plug A940 is held out against, resets
Spring A930, described pressure sensor A920, hold out against plug A940, back-moving spring A930 and be adjacent to assembling successively；
In use, first moving shock plate A162 to guide cylinder direction, impact spring A300 is stored elastic force, then directly release
Shock plate is put, shock plate A162 is produced impact to secondary impact disc A232 by impact disc A161.
Further, in order to realize the automation of this equipment, autoloading structure, institute can be set on bogie A150
The autoloading structure stated, including, crawl motor A520, motor supporting plate A151, the described crawl for picking up motor A520 output
Axle A521 is passed through after motor supporting plate A151 and is connected with total drive helical gear A911；
Described total drive helical gear A911 and a point drive helical gear A912 engaged transmissions, described point drive helical gear A912 and crawl drive
Moving axis A240 one end is connected, and the described crawl drive shaft other end passes through axle bearing piece A152 and rotatable with axle bearing piece A152
Assembling；
Described axle bearing piece A152 bottoms are connected with support beam A 153；
Cam A250, described cam A250 and switch inserted block A800 top contacts are fixed with described crawl drive shaft A240
Hold out against；
Described switch inserted block A800 is fitted into switch cylinder A600 inner cylinder A621.
Further, can be in support beam A 153 and cam corresponding position in order to prevent cam A250 rotation to be interfered
Slot to make way A1531 is set.
Described switch inserted block A800 is provided with bullet provided with inserted block body part A801, inserted block drive part A802, bottom
Spring mounting post A804, described inserted block drive part A802 and the driving guide groove A622 being arranged in inner cylinder A621 are assembled；
Described inserted block drive part A802 has multiple, and between two inserted block drive part A802 provided with resigning gap A8022,
Driving inclined-plane A8021, forms the angle that one is obtuse angle between described driving inclined-plane A8021 and resigning gap A8022；
Described switch cylinder A600 outer walls, which are provided with to constitute between guiding projection A601, two guiding projection A601, is oriented to board slot
A610, expansion ring A700 ring part A720 are fitted into guiding board slot A610 and relative with being oriented to board slot A610 can slided；
Described ring part A720 open end is connected through switch cylinder A600 and with closed plate A730, described ring body
Part A720 is fixed with screens projection A770 on shock plate A162 sides, and described ring part A720 inner sides are card
Position projection A770 just enters driving through switch cylinder A600 and is oriented to place provided with screens projection A740, described screens projection A740
Groove A622；
During original state, described screens projection A740 and resigning gap A8022 is assembled, and now, described screens is raised
A770 and shock plate A162 be not overlapping on end face.
On the inside of described closed plate A730 screens spring A750, described screens bullet are provided between switch cylinder A600 outer walls
Spring A750, which is used to produce, makes thrusts of the screens projection A770 away from shock plate A162.
Further, in order that screens spring A750 is mounted so as to more firm, spring catch A710, described spring can be set
Pin A710 pass through closed plate A730, screens spring A750 after with switch cylinder A600 be connected.
Assembled at the top of described spring mounting post A804 and support spring A820, described support spring A820 bottoms and envelope
The spring mounting post A831 assemblings covered on A830, described capping A830 is fixed on switch cylinder A600 bottoms.
In use, driving bogie A150 by loading motor A510 first, make screens projection A770 in past loading shell 300
Exceed shock plate A162 on direction；Then crawl motor 520 is rotated, and band moving cam A250 is pushed inserted block A800 is switched, herein
During, screens projection A740 can coordinate with driving inclined-plane A8021, and make screens raised under driving inclined-plane A8021 drivings
A770 is overlapping with shock plate A162 on impacting shaft axial direction；Last loading motor A510 is rotated, and makes bogie A150 compression shocks
Spring A300 reaches default value until the pressure sensor A920 pressure tested；Then rotate backward crawl motor A520,
This process cam loosens the compression to switching inserted block A800 again, described switch inserted block A800 can support spring A820 work
With it is lower reset, in reseting procedure, described screens projection A740 can be again introduced into resigning gap, screens projection A770 no longer
It is overlapping with shock plate（Shock plate discharges）, shock plate moved until to impacting shaft in the presence of impact spring to impacting shaft 230
230 produce impact.
This structure can realize the automation impact to impacting shaft, and can be according to the data of pressure sensor, punching
Spring is hit to length, the coefficient of elasticity of impact spring, the reduction length of secondary impact disc etc. and give the impact of impacting shaft to converse
Power, this conversion can be by what computer was directly calculated, very convenient to use.
Referring to Figure 12-Figure 23, described relaxation mechanism for testing, including, load cylinder 210, loading shell 300, loading axis
220th, cover plate assembly B, lifting assembly C；
LOADED CAVITY 301 is provided with described loading shell 300, described loading axis 220 enters LOADED CAVITY 301 through loading shell 300
In, rock sample 400 is installed in described LOADED CAVITY；
The described open end of loading shell 300 loads cover plate assembly B's provided with engaging screw rod 310, described engaging screw rod 310
Cover plate assembly B is assembled with loading shell 300 in connecting hole B210；
Described cover plate assembly B, including, collar B100 is oriented to, the described inside for being oriented to collar B100 is provided with guiding inner cylinder
B101, the described inwall for being oriented to inner cylinder B101 is provided with half groove B1011 of guiding；
The described groove B1011 of guiding half is assembled with the guiding raised line B201 on cover plate shell B200 outer walls, described cover plate shell B200
Interior be provided with installation cavity B202, described installation cavity B202 is provided with main sliding tooth B410, driven small tooth B420, described main drive
Dynamic tooth B410 and driven small tooth B420 is intermeshed and forms gear transmission structure；
Described driven small tooth B420 provided with assembling screw B421, described assembling screw B421 and connecting hole B210 it is coaxial and
Described assembling screw B421 is assembled with engaging screw rod 310 by threaded engagement；
Described installation cavity B202 is sealed by shrouding disc B300, and described shrouding disc B300 is provided with shrouding disc through hole B301, described
Shrouding disc through hole B301 and assembling screw B421 it is coaxial；
Described main sliding tooth B410 both sides are equipped with installation base B411, wherein on the installation base of shrouding disc B300 sides
Provided with hexagonal driving post B412, described hexagonal driving post B412 is fitted into shrouding disc B300 driving through hole B302, in use, can
To drive main sliding tooth B410 to turn by inner hexagon spanner after engaging with hexagonal driving post B412, assemble using inner hexagon spanner
It is dynamic；
Bearing mounting ring B310, described bearing mounting ring are equipped with the inside of described installation cavity B202, on the inside of shrouding disc B300
B310 is assembled with base bearing B512 outer rings and fixed, and described base bearing B512 inner rings are assembled with installation base B411 to be fixed；
Thrust ball bearing a B511, described thrust ball bearing B511 are respectively equipped with described driven small tooth B420 both ends of the surface
One blowout patche is fixed with driven small tooth B420 end faces, and another on the inside of installation cavity B202 or on the inside of shrouding disc B300 with being fixed；
Described thrust ball bearing B511 and driven small tooth B420 are coaxial.
By base bearing B512 and thrust ball bearing B511 use, main sliding tooth B410 on the one hand can be reduced, driven
Frictional force on the inside of small tooth B420 and installation cavity B202 and on the inside of shrouding disc B300, another aspect also can to main sliding tooth B410,
Driven small tooth B420 plays assembling, fixed effect.
Further, open end 0-0.5cm sections described of engaging screw rod 310 can be not provided with screw thread and diameter is slightly less than card
Close screw rod 310 and threaded part is set.This structure can play a part of guiding, in cover plate assembly B with engaging screw rod 310
During assembling, the effect that early stage is oriented to loading is played in the open end that engaging screw rod 310 is not provided with screw thread.
In use, the described driven small tooth B420 of main sliding tooth B410 drivings is rotated, the assembling spiral shell in driven small tooth B420
Hole B421 is with engaging screw rod 310 by threaded engagement, and most cover plate assembly is fixed with the loading assembling of shell 300 at last；Using process
Described in cover plate shell B200 can be oriented to inner cylinder B101 in slide.
Described cover plate shell B200 is additionally provided with sealing block B600, described sealing block B600 on loading shell 300 side
Be fixed with secondary loading axis 240 on the end face of loading shell 300 one end, described secondary loading axis 240 and with its just to loading
Axle 220 is coaxial；
In use, being held out against by the loading axis 220 on three axial directions and secondary loading axis 240 with the outer surface of sample 400 with fixation
Sample 400.Amesdial can be set in loading axis 220 to detect that each loading axis 220 loads the length loaded in shell, so that
Sample is calculated whether in default center, if not in center, can be adjusted by adding pad.
Described guiding collar B100 bottoms are connected by connecting plate B110 with being connected batten B120, described connection
Batten B120 bottoms are fixed with the top of hinged block B130, described hinged block B130 and lifter plate C100 and are hinged, described lifting
Plate C100 has two pieces and two pieces of lifter plate C100 to intersect and be hinged in infall, and described lifter plate C100 bottoms are respectively with first
Slide-bar C111 or the second slide-bar C112 are connected；
Referring to Figure 13, described connecting shaft component D, including it is arranged on the first connector 121, the adapter sleeve of the end of telescopic shaft 211
D100, the second connector 221 for being arranged on the end of loading axis 220；
Provided with connection inner cylinder D110 in described adapter sleeve D100, described connection inner cylinder D110 includes big end cylinder D111 and small end
Cylinder D112, described telescopic shaft 211 is fitted into through small end cylinder D112 and the first connector D212 to be held in cylinder D111 greatly, and described the
Provided with axial compressive force sensor D200 on the right side of one connector, the second described connector 221 is provided with wire through-hole 222, described
Axial compressive force sensor D200 wire passed from wire through-hole；
Described connection inner cylinder D110 screws assembling by screw thread and the second connector 221.
When needing to take apart loading axis and telescopic shaft, directly rotating adapter sleeve D100 makes adapter sleeve and the second connector 221
Disengaging.
In use, this structure detects the pressure applied on each axial direction to sample by axial compressive force sensor, in addition, described
Impacting shaft and loading axis be also by connecting shaft component D, can be by the stress of its axial compressive force sensor when being disturbed
The true dynamics for applying disturbance is extrapolated in change so that experiment is more accurate.
Referring to Figure 19-Figure 23, described lifting assembly C, including lifter plate C100, the first slide-bar C111 and the second slide-bar
C112, lifting pedestal C400, described the first slide-bar C111, the second slide-bar C112, which is respectively charged into, is arranged on lifting guide plate C300
Lifting guide groove C301 in, first described slide-bar C111 one end is connected with lifting motor C200, and can pass through lifting motor
C200 drives it to rotate；
The first described slide-bar C111 two ends pass and are separately installed with lifting sliding tooth on lifting guide groove C301 and external part
C210, described lifting sliding tooth C210 is engaged with the lifting pinion rack C220 being fixed on lifting supporting plate C310 and is formed tooth
Take turns rack drive mechanism；
Described lifting guide plate C300 bottoms are connected with lifting supporting plate C310；
Described lifting supporting plate C310 bottoms are provided with guide runner C311, and described lifting guide runner C311, which loads, is arranged on liter
Drop in the lifting guide chute C401 on base C400；
The first limiting plate C410 and the second limiting plate C420, the first described limiting plate are additionally provided with described lifting pedestal C400
C410 is used for the position for limiting lifting supporting plate C310, prevents lifting supporting plate C310 from being skidded off from first limiting plate C410 one end is provided with
Lifting pedestal C400；
The second described limiting plate C420 is being provided with hinged groove C402 with lifting guide chute C401 corresponding positions.
Further, described lifting supporting plate C310 and movable support rod C500 one end is hinged, described movable support rod
The C500 other ends are hinged at pedal C620, and described pedal C620 is provided with pedal hinged block C630 and treadle supporting block
C610, described pedal hinged block C630 is fitted into hinged groove C402 and by pedal jointed shaft C700 and the second limiting plate C420
It is hinged；
Described treadle supporting block C610 is used for support pedal C620, makes support pedal C620 and lifting pedestal C400 and branch
Support pedal C620 parallel.
In use, being that user tramples by pedal C620, so as to be user-friendly for operation, sample is such as clamped；
When lifting supporting plate C310 is moved to the second limiting plate C420, described movable support rod C500 can be carried to pedal C620
Pedal is rotated up for a steering power.And when lifting supporting plate C310 reverse movements, described pedal sets back again.
When needing to take out sample, cover plate assembly B is disassembled from loading shell 300 first, lifting motor is then driven, makes
Lifting motor driving lifting sliding tooth C210 is moved to lifting guide plate C300 ends, during this, cover plate assembly can gradually under
Drop, until reaching extreme lower position, then user tramples carries out disassembling section on pedal.
The lifting of cover plate assembly can be realized by lifting assembly, so as to prevent cover plate assembly influence operation and can also keep away
Exempt from the operation that user lifted or put down cover plate assembly with hand, save the muscle power of user.
The occupation mode and external connection apparatus of the present invention is referred to the A of Publication No. CN 104181029 middle promulgated by the State Council
Bright patent, because occupation mode is similar, this case is just repeated no more.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of rock disturbance generating mechanism, it is characterized in that：Including the first riser, the 3rd riser, the first described riser and
Three riser bottoms and supporting plate are connected and are fixed with the second guide rod between the first described riser and the 3rd riser, described
Second guide rod passes through bogie；Drive leading screw through bogie, the first riser and the 3rd riser and with the first riser and the 3rd
Riser is rotatably assembled, assembled with bogie by threaded engagement, and described driving leading screw passes through the 3rd riser one end and loading
The output shaft connection of motor；Secondary impact disc is contacted with impact disc to be held out against；
Described impact disc is fixed on shock plate, and described shock plate and impact disc collectively forms impact plate；
First guide rod passes through shock plate and two ends are connected with the first riser and the 3rd riser respectively, and described shock plate can
To be slided on the first guide rod；
Described shock plate is dorsad connected provided with impact disc end face with impact guide rod one end, described impact guide rod
On be cased with impact spring and the described impact guide rod other end is provided with impact guide end, described impact guide end diameter is big
Be oriented to shank diameter and described impact guide end in impact and be fitted into and impact in the guide cylinder of guide cylinder, described impact guide rod from
Passed in spacing bore；Described position-limiting drum bore dia is less than guide cylinder diameter；Autoloading structure is provided with bogie；
Described loading motor bottom is provided with motor supporting plate, and described motor supporting plate is fixed on the 3rd riser and added for carrying
Carry motor；Impacting shaft one end is provided with all mounting heads, and the other end provided with secondary impacts through the first riser and through first riser one end
Disk；Described impacting shaft is connected by connecting shaft component with loading axis；
Block plate is provided with impacting shaft；Pressure sensor is also equipped with described guide cylinder from left to right, plug, reset is held out against
Spring, described pressure sensor, holds out against plug, back-moving spring and is adjacent to assembling successively.
2. a kind of rock disturbance generating mechanism as claimed in claim 1, it is characterized in that：Described autoloading structure, including,
Capture motor, motor supporting plate, the described crawl output shaft for picking up motor is passed through after motor supporting plate and is connected admittedly with total helical gear that drives
It is fixed；
Described total drive helical gear and a point drive helical gear engaged transmission, described point drive helical gear are connected with crawl drive shaft one end
Fixed, the described crawl drive shaft other end is rotatably assembled through axle bearing piece and with axle bearing piece；
Described axle bearing piece bottom is connected with support beam；Cam, described cam are fixed with described crawl drive shaft
Held out against with switch inserted block top contact；Described switch inserted block is fitted into the inner cylinder A621 of switch cylinder.
3. a kind of rock disturbance generating mechanism as claimed in claim 1, it is characterized in that：Described connecting shaft component, including set
In the first connector, adapter sleeve, the second connector for being arranged on loading shaft end of flexible shaft end；
Provided with connection inner cylinder in described adapter sleeve, described connection inner cylinder includes big end cylinder and small end cylinder, described telescopic shaft
Is fitted into through small end cylinder and the first connector in big end cylinder, provided with axial compressive force sensor on the right side of the first described connector, institute
The second connector stated is provided with wire through-hole, and the wire of described axial compressive force sensor is passed from wire through-hole；Described
Connection inner cylinder screws assembling by screw thread and the second connector.
4. a kind of rock disturbance generating mechanism as claimed in claim 1, it is characterized in that：Set in support beam and cam corresponding position
There is slot to make way；
Described switch inserted block is provided with spring mounting post provided with inserted block body part, inserted block drive part, bottom, and described inserts
Block drive part and the driving guide groove being arranged in inner cylinder are assembled；
Described inserted block drive part has multiple, and resigning gap, driving inclined-plane are provided between two inserted block drive parts, described
Driving inclined-plane and resigning gap between formed one be obtuse angle angle；
Described switch drum outer wall, which is provided with to constitute between guiding projection, two guiding projections, is oriented to board slot, the ring body of expansion ring
It is partially loaded in guiding board slot and relative with being oriented to board slot can slides；
The open end of described ring part is connected through switch cylinder and with closed plate, and described ring part is close to impact
Screens projection is fixed with plate side, and described ring part inner side is that screens is raised and is just provided with screens projection, institute to place
The screens projection stated enters driving guide groove through switch cylinder；
During original state, described screens projection is assembled with resigning gap, and now, described screens is raised to hold with shock plate
It is not overlapping on face；
Screens spring is provided with the inside of described closed plate between switch drum outer wall, described screens spring, which is used for generation, makes screens
The raised thrust away from shock plate.
5. a kind of rock disturbance generating mechanism as claimed in claim 4, it is characterized in that：Also include spring catch, described spring
Pin with switch cylinder through being connected after closed plate, screens spring；
Described spring mounting post at the top of support spring with assembling, described support spring bottom and the spring mounting post in capping
Assembling, described capping is fixed on switch cylinder bottom.
Relaxation-disturbance comprehensive experimental device of rock disturbance generating mechanism described in requirement 1-5, its feature 6. a kind of application is had the right
It is：Also include frame, relaxation mechanism for testing；Described frame, including, bottom plate, side plate, back plate, top plate, described side plate, after
Plate bottom and top are connected with bottom plate and top plate respectively, connect, be fixed with supporting plate, described supporting plate between two blocks of side plates
Side is provided with the fuel tank for being used for depositing hydraulic oil；Loose mechanism for testing, rock disturbance generating mechanism are fixed with described supporting plate；
Described relaxation mechanism for testing, including, load cylinder, described load cylinder has three and is arranged in load shell
For on three axial directions of origin, the telescopic shaft of described load cylinder is connected by connecting shaft component with loading axis respectively；Described
Loading axis through loading shell enter loading shell in sample outer surface compress.
7. relaxation-disturbance comprehensive experimental device as claimed in claim 6, it is characterized in that：Described relaxation mechanism for testing, bag
Include, load cylinder, loading shell, loading axis, cover plate assembly, lifting assembly；
LOADED CAVITY is provided with described loading shell, described loading axis enters in LOADED CAVITY through loading shell, described LOADED CAVITY
In rock sample is installed；
Described loading shell opener end face is provided with engaging screw rod, and described engaging screw rod is fitted into the connecting hole of cover plate assembly will
Cover plate assembly and loading shell assembling；
Described cover plate assembly, including, the collar is oriented to, the inside of the described guiding collar, which is provided with, is oriented to inner cylinder, described guiding
The inwall of inner cylinder is provided with half groove of guiding；
The described groove of guiding half is assembled with the guiding raised line on cover plate shell outer wall, and installation cavity is provided with described cover plate shell, described
Installation cavity in main sliding tooth, driven small tooth be installed, described main sliding tooth is intermeshed with driven small tooth and forms gear
Drive mechanism；
Described driven small tooth provided with assembling screw, the described assembling screw assembling screw coaxial and described with connecting hole and
Engaging screw rod is assembled by threaded engagement；
Described installation cavity is sealed by shrouding disc, and described shrouding disc is provided with shrouding disc through hole, described shrouding disc through hole and assembling
Screw is coaxial；
Described main sliding tooth both sides are equipped with installation base, wherein the installation base close to shrouding disc side drives provided with hexagonal
Post, described hexagonal driving post is fitted into the driving through hole of shrouding disc；
Bearing mounting ring is equipped with the inside of described installation cavity, on the inside of shrouding disc, described bearing mounting ring is filled with main shaft bearing outer-ring
With fixation, described base bearing inner ring is assembled with installation base to be fixed；
Be respectively equipped with a thrust ball bearing in described driven small tooth both ends of the surface, described one blowout patche of thrust ball bearing with from
Move small increment face to fix, another on the inside of installation cavity or on the inside of shrouding disc with being fixed；Described thrust ball bearing with it is driven small
Tooth is coaxial.
8. relaxation-disturbance comprehensive experimental device as claimed in claim 7, it is characterized in that：Described engaging screw rod open end 0-
0.5cm sections are not provided with screw thread and diameter is slightly less than engaging screw rod and sets threaded part.
9. relaxation-disturbance comprehensive experimental device as claimed in claim 7, it is characterized in that：Described cover plate shell is close to loading shell
Sealing block is additionally provided with side, described sealing block is fixed with secondary loading axis, described pair on the end face of loading shell one end
Loading axis and with its just to loading axis it is coaxial；
Described guiding collar footprint is connected by connecting plate with being connected batten, and described connection batten bottom fixes hinged
Block is connect, described hinged block at the top of lifter plate with being hinged, and described lifter plate there are two pieces and two pieces of lifter plates intersect and intersected
Place is hinged, and described lifter plate bottom is connected with the first slide-bar or the second slide-bar respectively.
10. relaxation-disturbance comprehensive experimental device as claimed in claim 6, it is characterized in that：Described lifting assembly, including rise
Plate, the first slide-bar and the second slide-bar, lifting pedestal dropped, and described the first slide-bar, the second slide-bar, which are respectively charged into, to be arranged on lifting and lead
Into the lifting guide groove of plate, first described slide-bar one end is connected with lifting motor, and can drive its turn by lifting motor
It is dynamic；
The first described slide-bar two ends pass and are separately installed with lifting sliding tooth, described liter on lifting guide groove and external part
Drop sliding tooth engages with the lifting pinion rack being fixed on lifting supporting plate and forms rack pinion structure；Described lifting
Guide plate bottom is connected with lifting supporting plate；
Described lifting supporting plate bottom is provided with guide runner, and described lifting guide runner loads the liter being arranged on lifting pedestal
Drop in guide chute；
The first limiting plate and the second limiting plate are additionally provided with described lifting pedestal, the first described limiting plate is used to limit lifting
The position of supporting plate, prevents lifting supporting plate from skidding off lifting pedestal from first limiting plate one end is provided with；
The second described limiting plate is being provided with hinged groove with lifting guide chute corresponding position；
Described lifting supporting plate is hinged with movable support rod one end, and the described movable support rod other end is hinged at pedal,
Described pedal is provided with pedal hinged block and treadle supporting block, and described pedal hinged block is fitted into hinged groove and by pedal
Jointed shaft is hinged with the second limiting plate；
Described treadle supporting block is used for support pedal, makes support pedal parallel with support pedal with lifting pedestal.
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| CN201710636622.7A CN107221236B (en) | 2017-07-31 | 2017-07-31 | A kind of rock disturbance generating mechanism and its relaxation-disturbance comprehensive experimental device |
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| CN108240941A (en) * | 2018-03-06 | 2018-07-03 | 安徽理工大学 | A kind of experimental provision for being used to test rock disturbance-relaxation effect |
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| CN110836929A (en) * | 2019-11-26 | 2020-02-25 | 中国科学院武汉岩土力学研究所 | Jointed rock mass vibration attenuation physical simulation test method and device |
| CN110836929B (en) * | 2019-11-26 | 2021-01-19 | 中国科学院武汉岩土力学研究所 | Jointed rock mass vibration attenuation physical simulation test method and device |
| CN111650015A (en) * | 2020-04-26 | 2020-09-11 | 成都理工大学 | Automatic frequency modulation soil sample disturbance test device |
| CN111650015B (en) * | 2020-04-26 | 2021-07-13 | 成都理工大学 | Automatic frequency modulation soil sample disturbance test device |
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