CN107036919A - The experimental provision and experimental method of a kind of utilization ultrasonic exciting fractured rock - Google Patents
The experimental provision and experimental method of a kind of utilization ultrasonic exciting fractured rock Download PDFInfo
- Publication number
- CN107036919A CN107036919A CN201710204880.8A CN201710204880A CN107036919A CN 107036919 A CN107036919 A CN 107036919A CN 201710204880 A CN201710204880 A CN 201710204880A CN 107036919 A CN107036919 A CN 107036919A
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- langevin
- type transducer
- cooling
- rock sample
- connection sheet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
- G01N2203/0008—High frequencies from 10 000 Hz
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0055—Generation of the force using mechanical waves, e.g. acoustic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of experimental provision of utilization ultrasonic exciting fractured rock and experimental method, the device is made up of supersonic generator, vibrational system and cooling system, and vibrational system includes Langevin-type transducer, connection sheet and fixator；Cooling system includes cooling cylinder, coolant and cooling bath.Connection sheet is fixed by screws on Langevin-type transducer, and horizontal fixator is arranged on cooling bath cell wall, and rock sample is bonded in connection sheet lower end with super glue.Supersonic generator supplies electricity to Langevin-type transducer and drives its work, the electric signal of input to encourage rock sample to occur to vibrate and then damage, rupture after being changed through Langevin-type transducer.The backward cooling cylinder circulation injection coolant cooling Langevin-type transducer of cooling system energization.The present invention can be by changing Rock Sample Size, and rock sample is connected by the relation between study of rocks crushing effect and ultrasonic power, frequency by connection sheet with Langevin-type transducer, and vibration transmission efficiency is high, and oscillator is repeatable to be utilized, and service life is long.
Description
Technical field
It is specially that one kind utilizes ultrasonic exciting rock the invention belongs to ultrasonics and the crossing domain of catalase,
Promote rock interior cranny development, lesion ruptures so as to reduce rock strength to study the crushing effect of variety classes rock with surpassing
The experimental provision and experimental method of rule between acoustic power, frequency and the rock scale of construction.
Background technology
Ultrasonic wave is that medium particle can be caused in a kind of vibration condition and the mode of propagation of energy, communication process to replace
Compression and extension cause pressure change between medium, and this pressure change is by the mechanical effect between causing medium.Research shows：Ultrasound
Wave frequency rate is high, wavelength is short, causes particle vibration acceleration very big when acting on solid dielectric, and particle acceleration be proportional to it is super
Square of acoustic frequency, then with less dead load with regard to huge shock loading can be caused, so as to cause the local stress of rock remote
More than the fracture strength limit of rock, cause the generation of the trickle slight crack of rock surface, extend and reach lesion ruptures.
Constructed in breaking hard rock drilling low intensity, speed of fulfiling hole slow, inefficient, the machine cut of traditional drilling and blasting method is crushed
Difficulty, equipment weares and teares, maintenance capacity is big and invading mechanism is low（Penetraction depth is inadequate）, there is presently no more efficient catalase dress
Put, also have no the experimental provision using ultrasonic disruption rock, the mechanism using ultrasonic exciting fractured rock is directed to both at home and abroad
Research also has no system report, and correlative study is still in the investigative test stage.Applicant is broken using ultrasonic exciting in advance
When directly being cooled down in the investigative test of crushed rocks with water to Langevin-type transducer, cavitation can be produced in surface of test piece,
Influence experiment effect.Therefore to needing a kind of more perfect experimental provision using the research of ultrasonic exciting fractured rock.
The content of the invention
An object of the present invention is to provide a kind of experimental provision of utilization ultrasonic exciting fractured rock.The second purpose is
A kind of experimental method of utilization ultrasonic exciting fractured rock is provided, added by using ultrasonic wave dither reduction rock strength
It is crushed speed, determines the relation between ultrasonic power when different lithology test specimen reaches broken, frequency and rock sample yardstick, can
Cracking Mechanism for studying rock under ultrasonic exciting.
The present invention is using the experimental provision of ultrasonic exciting fractured rock by supersonic generator, vibrational system and cooling system
Unite three parts composition, vibrational system includes Langevin-type transducer, connection sheet and fixator, and cooling system includes cooling cylinder, cooling
Liquid and cooling bath.
Langevin-type transducer and connection sheet are by the way that together with the mode connects for screw in connection sheet, rock sample is bonded with super glue
In connection sheet lower end.
Connection sheet is circle, and its diameter, thickness are determined according to experiment test specimen.
Rock sample is fixed using the symmetrical Y-shaped fixator on cooling bath cell wall, test specimen when preventing from testing
Move horizontally.Fixator is arranged on cooling bath, fixator when can fix cooling cylinder on rock sample, cover is rotated into groove embedding
In in the bayonet socket of cooling cylinder.
By being cooled down to cooling cylinder circulation injection coolant to Langevin-type transducer, it is to avoid Langevin-type transducer produces high temperature and damaged
It is bad.In addition, according to a kind of experimental provision of utilization ultrasonic exciting fractured rock of the present invention, air blower air blast can also be used
Cool down Langevin-type transducer.
A kind of experimental method of utilization ultrasonic exciting fractured rock of the present invention comprises the following steps：
A, the rock sample of the different size of pre-production, different lithology is needed according to experiment；
B, the lower end that connection sheet is fixed by screws in Langevin-type transducer；
C, with super glue by rock sample tight bond in the lower end of connection sheet；
D, with wire supersonic generator and Langevin-type transducer are connected, welding manner is used during connection；
E, rock sample is placed in cooling bath together with Langevin-type transducer, tightens fixator and fix test specimen, then cover upper cooling cylinder；
F, connection cooling system power supply, into cooling cylinder, circulation injection coolant is cooled down to Langevin-type transducer；
G, the power supply for connecting supersonic generator, driving Langevin-type transducer work；
H, energization are tested and are observed, and the power supply of supersonic generator are initially switched off after terminating, then cut off the power supply of cooling system；
I, back out connection sheet, take out rock sample and observe and carry out subsequent experimental.
Beneficial effects of the present invention：
（1）Pass through the power of the lithology, size and ultrasonic wave that change rock sample, frequency, it may be determined that rock-breaking effect and examination
Relation between part lithology, size and ultrasonic power, frequency.
（2）Experimental provision uses the circulation injection coolant cooling Langevin-type transducer into cooling cylinder, it is to avoid direct utilization
Surface is contacted with test specimen in liquid when coolant cools down Langevin-type transducer and produces cavitation erosion, test specimen is damaged and influences experiment to imitate
Really.
（3）Contact between Langevin-type transducer and rock sample is connected by screw using connection sheet, is realized Lan Jiewen and is shaken
The reuse of son, extends the service life of Langevin-type transducer.
Brief description of the drawings
Fig. 1 is experimental provision schematic diagram of the invention.
Fig. 2 is the top view of experimental provision of the present invention.
Fig. 3 is connection sheet sectional view.
Fig. 4 is cooling cylinder side view.
Reference：
1-transducer；2-connection sheet；3-rock sample；4-fixator；5-cooling bath；6-supersonic generator；7-cold
But cylinder；8-screw；9-coolant；10-cooling cylinder bayonet socket；11-wire.
Embodiment
A kind of experimental provision of utilization ultrasonic exciting fractured rock of the present invention is by supersonic generator 6, vibration system
System and the part of cooling system three composition, vibrational system include Langevin-type transducer 1, connection sheet 2 and fixator 4, cooling system bag
Cooling cylinder 7, coolant 9 and cooling bath 5 are included.
Connection sheet 2 and Langevin-type transducer 1 are threaded together by the screw 8 in connection sheet 2, then with super glue by rock
Test specimen 3 is together with the tight bond of connection sheet 2.
Ultrasonic transducer in the oscillator 1 is composite piezoelectric ceramic transducer.
Described connection sheet 2 is circle, and its diameter, thickness are determined according to the diameter of experiment test specimen.
Clamping rock sample 3 using the symmetrical both sides of Y-shaped fixator 4 on cooling bath cell wall fixes it,
Prevent that rock sample 3 is moved horizontally during experiment.There is screw thread on the horizon bar of described fixator 4, on cooling bath 5, lead to
Cross and rotate to limit moving horizontally for rock sample 3 into groove, fixator is embedded in the bayonet socket 10 of cooling cylinder during cooling cylinder on cover.
Preferably, cooling device of the invention is a cooling cylinder, connects cooling system power supply, and note is circulated into cooling cylinder
Enter coolant to cool down Langevin-type transducer, it is to avoid Langevin-type transducer 1 is damaged because producing high temperature.
Alternatively, cooling device of the invention can also use air blower, by air blower to Langevin-type transducer air blast pair
It is cooled down.
Ultrasonic vibration system 1 is connected with supersonic generator 6, supersonic generator 6 and cable connection, by connecting electricity
Cable is powered to Langevin-type transducer drives its work while causing rock sample 3 to vibrate.
A kind of experimental method of utilization ultrasonic exciting fractured rock of the present invention comprises the following steps：
A, the rock sample 3 of the different size of pre-production, different lithology is needed according to experiment；
B, the lower end that connection sheet 2 is fixed on to Langevin-type transducer 1 by screw 8；
C, with super glue by the tight bond of rock sample 3 in the lower end of connection sheet 2；
D, with wire 11 supersonic generator 6 and Langevin-type transducer 1 are connected, welding manner is used during connection；
E, rock sample 3 is placed in cooling bath 5 together with Langevin-type transducer 1, tightens fixator 4 and fix test specimen, then cover upper cold
But cylinder 7；
F, connection cooling system power supply, into cooling cylinder 7, circulation injection coolant 9 is cooled down to Langevin-type transducer 1；
G, the power supply for connecting supersonic generator 6, driving Langevin-type transducer 1 work；
H, energization are tested and are observed, and the power supply of supersonic generator 6 are initially switched off after terminating, then cut off the electricity of cooling system
Source；
I, back out connection sheet 2, take out rock sample 3 and observe and carry out subsequent experimental.
In the description of the invention, it is to be understood that the position relationship of the instruction such as term " lower end ", " interior " is based on attached
Position relationship shown in figure, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified device
Or element there must be specific orientation, be operated with specific azimuth configuration, therefore it is not considered as limiting the invention.
In addition, term " one of ", " two " be only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " one of ", " two " feature can express or
Implicitly include one or more this feature.
In the present invention, unless otherwise expressly provided and limit, the term such as term " installation ", " fixation ", " connection " should make
It broadly understood, for example, connection can be fixedly connected or be detachably connected, or be integrally connected；It can be direct phase
Even, can also be indirectly connected to by intermediary, also or two element internals connection.To one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In this manual, having described specific embodiments of the present invention, but it is understood that, above-mentioned tool
Body embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, and one of ordinary skill in the art is not departing from this
Above-mentioned embodiment can be carried out within the scope of the invention in the case of the principle and objective of invention certain change,
Modification, replacement or modification.
Claims (3)
1. the experimental provision and experimental method of a kind of utilization ultrasonic exciting fractured rock, it is characterised in that：Experimental provision is by surpassing
Sonic generator（6）, vibrational system and the part of cooling system three composition, vibrational system include Langevin-type transducer（1）, connection sheet
（2）And fixator（4）；Cooling system includes cooling cylinder（7）, coolant（9）And cooling bath（5）.
Described supersonic generator（6）It is frequency-adjustable ultrasonic generator, uses wire（11）With Langevin-type transducer（1）Connection.
Supersonic generator（6）Langevin-type transducer is driven after energization（1）Vibration, to rock sample（3）It is motivated by ultrasound.
Described fixator（4）It is one group of symmetrical Y-shaped clamper, the horizontal displacement for limiting rock sample is arranged on
On cooling bath cell wall, fixator is embedded in the bayonet socket of cooling cylinder during cooling cylinder on cover（10）It is interior, can be by rock by being rotated into groove
Test specimen is fixed.
Described cooling system is a recyclable injection coolant（9）Cooling cylinder（7）, by cold to cooling cylinder circulation injection
But liquid, to Langevin-type transducer（1）Cooled down, prevent Langevin-type transducer（1）Produce high temperature and damage.
2. a kind of experimental provision of utilization ultrasonic exciting fractured rock according to claim 1, it is characterised in that：It is described
Langevin-type transducer（1）The transducer used is compound piezoelectric ceramic transducer, and lower end is inverted tubaeform；Described connection sheet
（2）For circle, its diameter, thickness are determined according to experiment test specimen.
3. the experimental method of utilization ultrasonic exciting fractured rock according to claim 1, this method comprises the following steps：
A, the rock sample of the different size of pre-production, different lithology is needed according to experiment（3）；
B, by connection sheet（2）Pass through screw（8）It is fixed on Langevin-type transducer（1）Lower end；
C, with super glue by rock sample（3）Tight bond is in connection sheet（2）Lower end；
D, use wire（11）Connect supersonic generator（6）With Langevin-type transducer（1）, welding manner is used during connection；
E, by rock sample（3）Together with Langevin-type transducer（1）It is placed on cooling bath（5）In, tighten fixator（4）Fixed test specimen, so
Cooling cylinder on back cover（7）；
F, connection cooling system power supply, to cooling cylinder（7）Middle circulation injection coolant（9）To Langevin-type transducer（1）Cooling；
G, connection supersonic generator（6）Power supply, drive Langevin-type transducer（1）Work；
H, energization are tested and are observed, and supersonic generator is initially switched off after terminating（6）Power supply, then cut off the electricity of cooling system
Source；
I, back out connection sheet（2）, take out rock sample（3）Observe and carry out subsequent experimental.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204880.8A CN107036919B (en) | 2017-03-31 | 2017-03-31 | Experimental device and experimental method for breaking rock by utilizing ultrasonic excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204880.8A CN107036919B (en) | 2017-03-31 | 2017-03-31 | Experimental device and experimental method for breaking rock by utilizing ultrasonic excitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107036919A true CN107036919A (en) | 2017-08-11 |
| CN107036919B CN107036919B (en) | 2020-10-16 |
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| CN201710204880.8A Active CN107036919B (en) | 2017-03-31 | 2017-03-31 | Experimental device and experimental method for breaking rock by utilizing ultrasonic excitation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884104A (en) * | 2017-12-29 | 2018-04-06 | 吉林大学 | A kind of test device and method of ultrasonic activation detritus Effective power |
| CN108825260A (en) * | 2018-06-19 | 2018-11-16 | 长安大学 | A kind of the TBM cutterhead and its method for arranging of vibratory impulse addi-tional crusher rock |
| CN110596349A (en) * | 2019-09-20 | 2019-12-20 | 中国工程物理研究院激光聚变研究中心 | Movable laser rock breaking experimental device and method |
| CN111537174A (en) * | 2020-04-29 | 2020-08-14 | 江苏大学 | Variable-angle ultrasonic impact test device and method |
| CN113740127A (en) * | 2021-08-09 | 2021-12-03 | 宁波新芝生物科技股份有限公司 | Non-contact refrigeration type ultrasonic pulverizer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110596349A (en) * | 2019-09-20 | 2019-12-20 | 中国工程物理研究院激光聚变研究中心 | Movable laser rock breaking experimental device and method |
| CN111537174A (en) * | 2020-04-29 | 2020-08-14 | 江苏大学 | Variable-angle ultrasonic impact test device and method |
| CN113740127A (en) * | 2021-08-09 | 2021-12-03 | 宁波新芝生物科技股份有限公司 | Non-contact refrigeration type ultrasonic pulverizer |
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