CN109580364A - The rotatable rock mechanics experiment machine of heavy duty - Google Patents
The rotatable rock mechanics experiment machine of heavy duty Download PDFInfo
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- CN109580364A CN109580364A CN201811224041.3A CN201811224041A CN109580364A CN 109580364 A CN109580364 A CN 109580364A CN 201811224041 A CN201811224041 A CN 201811224041A CN 109580364 A CN109580364 A CN 109580364A
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- 239000011435 rock Substances 0.000 title claims abstract description 89
- 238000002474 experimental method Methods 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 claims abstract description 148
- 230000007246 mechanism Effects 0.000 claims abstract description 97
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 29
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000002591 computed tomography Methods 0.000 abstract description 11
- 238000011160 research Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 79
- 238000007789 sealing Methods 0.000 description 24
- 238000004826 seaming Methods 0.000 description 22
- 239000012530 fluid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
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- 238000001514 detection method Methods 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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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
- G01N2203/0003—Steady
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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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
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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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
- G01N2203/0647—Image analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
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Abstract
The invention belongs to mechanics experimental equipment technical fields, and in particular to a kind of rotatable rock mechanics experiment machine of heavy duty.Testing machine of the invention includes fixing component, carry rotating mechanism, pressure chamber and load rotating mechanism, carrying rotating mechanism and load rotating mechanism are respectively provided on the fixing element, pressure chamber is connected between carrying rotating mechanism and load rotating mechanism, during the test, carry rotating mechanism, pressure chamber and load rotating mechanism can rotate synchronously, reaction of bearing is born by fixing component, bigger reaction of bearing is able to bear compared with existing CT testing machine, it is able to carry out the load test of bigger load, load test can be carried out to larger sized test specimen, CT scan result is set preferably to reflect reality the heterogeneity of geologic body, noncontinuity and post-failure behavior, during carrying out load test, CT scan can be carried out to test specimen, to obtain the configuration state that test specimen is in stress state , it is more advantageous to scientific research.
Description
Technical field
The invention belongs to mechanics experimental equipment technical fields, specifically provide a kind of rotatable rock mechanics experiment machine of heavy duty.
Background technique
World today's resources exploration is drive on boldly to earth energy and disaster (2000~ten thousand metres), this kind of resource
Exploitation need to use ultra-deep straight well and horizontal well and it is necessary to reservoir carry out geologic body transformation, implement rock fracture anatonosis.
The Efficient Development of this kind of resource must solve great basic problem in science, and " rupture of the geologic body under pressure and temp effect is formed
Develop, gas-liquid migration rule and physical property variation characteristic ", this is also to recognize geologic body state and the front line science of geological process is asked
Topic.
Conventional rock mechanical test can obtain macro-stress-strain curve of sample, obtain the sheet of rock deformation and failure
Structure relational model, and then for instructing engineering design.However these test methods can not know the rupture evolution of rock interior
Journey and mechanism can not know the dynamic process of material migration and conversion.The inherence of geologic body macroscopic view presentation cannot thus be disclosed
The limitation of essential reason, conventional test methods and means becomes rupture of the exploration geologic body under pressure and temp effect and is formed
Develop, the bottleneck of gas-liquid migration rule and physical property variation characteristic.
In the prior art, this for observing rock interior deformation failure by CT technical application into rock mechanics experiment
Equipment can make people recognize the secret of rock interior rupture to a greater extent, can extend spy of the people to the deep resource energy
Know and development level.CT technology promotes and applies rapidly in ground field and becomes effective hand of research underbead crack Evolution
Section.
But existing CT rock test rig is and the branch that pressure chamber is able to bear using pressure chamber as reaction of bearing frame
Support counter-force is smaller, and the load for causing CT rock test rig that can apply is relatively low, and rigidity is extremely low, so that determining can use
Rock sample it is small-sized, lead to cannot to obtain rock Complete Stress-Strain Curve, CT scan result cannot reflect reality geology
Heterogeneity, noncontinuity and the post-failure behavior of body, are unfavorable for scientific research.
Therefore, this field needs the rotatable rock mechanics experiment machine of heavy duty of one kind newly to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, in order to solve the applicable test sample of existing CT rock test rig
Product size is small, leads to the Complete Stress-Strain Curve that cannot obtain test specimen, and CT scan result cannot reflect reality geologic body
The problem of heterogeneity, noncontinuity and post-failure behavior, the present invention provides a kind of rotatable rock mechanics experiment machine of heavy duty,
The rotatable rock mechanics experiment machine of heavy duty includes fixing component, carrying rotating mechanism, pressure chamber and load rotating mechanism, institute
It states carrying rotating mechanism and the load rotating mechanism is respectively provided on the fixing member, the pressure chamber is connected to described hold
Carry between rotating mechanism and the load rotating mechanism, during the test, the carrying rotating mechanism, the pressure chamber and
The load rotating mechanism can rotate synchronously.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the fixing component include bottom plate,
Top plate and the multiple columns being arranged between the bottom plate and the top plate, the carrying rotating mechanism are arranged in the bottom plate
On, the load rotating mechanism is arranged on the top plate.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the carrying rotating mechanism includes rotation
Turn platform, the first rotary oil cylinder, self-aligning thrust roller bearing, the first drive member and the first driving member, the rotating platform
The top of first rotary oil cylinder is set, and first rotary oil cylinder and first drive member are arranged at the bottom
On plate, the bottom of first rotary oil cylinder is arranged in the self-aligning thrust roller bearing, and first drive member passes through institute
The first driving member is stated to be connect with the rotating platform to drive the rotating platform to rotate, during the test, the rotation
Platform can be connect with the bottom of the pressure chamber and the top of the pressure chamber can be connect with the load rotating mechanism
To drive the pressure chamber and the load rotating mechanism to rotate synchronously.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, first rotary oil cylinder includes the
One cylinder body and it is arranged in the intracorporal first piston of the first cylinder, first cylinder body is fixed on the bottom plate, and described the
The top of one piston is stretched out first cylinder body and is connect with the rotating platform, and the bottom of the first piston stretches out described first
Cylinder body is connect with the self-aligning thrust roller bearing.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, first drive member is servo
Motor, first driving member include retarder, small pulley, belt, big belt wheel and big belt wheel pedestal, the servo motor
Output shaft is connect by the retarder with the small pulley, and the small pulley is connect by the belt with the big belt wheel,
The big belt wheel pedestal is fixed on the top of first cylinder body, and the big belt wheel is arranged in the big belt wheel in a manner of rotationally
It is connect on pedestal and with the rotating platform.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, it is provided in the big belt wheel multiple
Guide sleeve, the bottom of the rotating platform are provided with multiple guide rods, and the multiple guide sleeve and the multiple guide rod match
It closes so that the big belt wheel to be connect with the rotating platform.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the upper surface of the big belt wheel pedestal
It is provided with Circular gratings read head, the lower surface of the big belt wheel is provided with Circular gratings ruler, when big belt wheel rotation, the round light
Grid read head can read the scale on the Circular gratings ruler in real time to detect the angular displacement of the big belt wheel.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the load rotating mechanism includes the
Two rotary oil cylinders, rotary slip ring and torque limiter, second rotary oil cylinder are fixed on the top plate, the rotary slip ring
The top of second rotary oil cylinder is set, and the bottom of second rotary oil cylinder passes through the torque limiter and the pressure
The connection of power room.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, second rotary oil cylinder includes the
Two cylinder bodies and it is arranged in the intracorporal second piston of the second cylinder, the rotary slip ring includes connected stator and rotor, described
Second cylinder body is fixed on the top plate by cylinder body connector, and the stator is fixed on the top of second cylinder body, described
Axis is provided with through-hole inside second piston, the top of the second piston is stretched out second cylinder body and connected with the rotor
It connects, the bottom of the second piston is stretched out second cylinder body and connect by the torque limiter with the pressure chamber.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the rotatable rock mechanics of heavy duty
Testing machine further includes follower, and the follower is arranged on the top plate, and the follower is set as being tried
The carrying rotating mechanism, the pressure chamber and the load rotating mechanism can be followed to rotate synchronously when testing.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the follower includes the second drive
Dynamic component, the second driving member and servo-actuated turntable, second drive member, second driving member and the servo-actuated turntable
It is arranged on the top plate, second drive member is connect by second driving member with the servo-actuated turntable to drive
Move the servo-actuated turntable rotation.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, second drive member is driving
Motor, second driving member are pinion gear and gear wheel, and second driving motor is fixed on the top plate, described big
Gear is arranged on the top plate in a manner of rotationally, and the output shaft of the driving motor is connect with the pinion gear, described small
Gear is connect with the gear wheel, and the servo-actuated turntable is fixed on the gear wheel.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the pressure chamber includes pedestal, pressure
Power room cylinder, upper end cover, pressure piston and the push-down head and seaming chuck being arranged in the pressure chamber cylinder, the pressure chamber cylinder
Bottom is connect with the pedestal, and the top of the pressure chamber cylinder is connect with the upper end cover, and the push-down head is arranged at the bottom
On seat, the bottom of the pressure piston is arranged in the seaming chuck, and during the test, the upper end cover can be with the torque
Limiter connection, the top of the pressure piston can stretch out the upper end cover and connect with the second piston.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the pressure chamber cylinder is located at test sample
The wall thickness that grade is set is less than the pressure chamber cylinder and is located at the wall thickness around test specimen position.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the pressure chamber further includes high/low temperature
Slip ring and heat exchanger tube, outside the pressure chamber cylinder, the heat exchanger tube is arranged in the pressure chamber high/low temperature slip ring sleeve
In cylinder, during the test, it can be recycled by high/low temperature slip ring to the heat exchanger tube and provide high/low temperature liquid to control the pressure
The temperature of confining pressure oil in power room.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the high/low temperature slip ring includes being connected
High/low temperature stator and high/low temperature rotor, the high/low temperature stator connect with the fixing component, the high/low temperature rotor and institute
State pressure chamber cylinder connection.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, it is provided on the high/low temperature stator
First inlet, the first liquid return hole, lead channel and liquid return trough are provided with the second inlet and second time on the high/low temperature rotor
Liquid mouth, when the high/low temperature rotor is with respect to high/low temperature stator rotation, the lead channel always with first inlet and institute
The connection of the second inlet is stated, the liquid return trough is connected to first liquid return hole and second liquid return hole always.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, is provided in the pressure chamber cylinder
Three inlets and third liquid return hole, second inlet are connected to by the third inlet with one end of the heat exchanger tube,
Second liquid return hole is connected to by the third liquid return hole with the other end of the heat exchanger tube.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, also set up on the high/low temperature stator
There are the first sealing ring, the second sealing ring and third sealing ring, the downside of the lead channel is arranged in first sealing ring, described
Second sealing ring is arranged between the lead channel and the liquid return trough, and the upper of the liquid return trough is arranged in the third sealing ring
Side.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the pressure chamber further include bulb and
The bottom of ball cup, the bulb is arranged in plane, the spherical setting in the top of the bulb, and the bottom of the ball cup is in ball
Cambered surface setting, the spherical cambered surface of the ball cup are adapted with the spherical surface of the bulb, and the top of the ball cup is arranged in plane,
During the test, the bottom of the bulb can be connect with the seaming chuck, and the top of the bulb can be with the bulb
The bottom connection of seat, the top of the ball cup can be connect with the bottom of the pressure piston.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the first pressure is provided on the bulb
Ceasma and/or the first seepage flow hole.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, second is provided on the seaming chuck
Pressure break hole or the second seepage flow hole.
In the optimal technical scheme of the above-mentioned rotatable rock mechanics experiment machine of heavy duty, the rotatable rock mechanics of heavy duty
Testing machine further includes transport vehicle, guide rail and fixed frame, and the fixed frame is fixed on the bottom plate, and the guide rail is arranged described
On fixed frame, during the test, the pressure chamber be can be placed on the transport vehicle, and the transport vehicle can be led described
It is moved on rail to drive the pressure chamber mobile.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, by the way that whirler will be carried
Structure and load rotating mechanism are respectively provided on the fixing element, by fixing component as reaction of bearing frame, are held during the test
By reaction of bearing, relative to existing CT rock mechanics experiment machine by pressure chamber as reaction of bearing frame, fixing component can
Bigger reaction of bearing is born, testing machine of the invention is made to be able to carry out the load test of bigger load, so as to bigger
The test specimen of size carries out load test, to obtain the Complete Stress-Strain Curve of test specimen, and makes CT scan structure
The heterogeneity and noncontinuity for the geologic body that can preferably reflect reality are more advantageous to scientific research, also, pressure chamber are connected
Connect carrying rotating mechanism and load rotating mechanism between, during carrying out load test, carry rotating mechanism, pressure chamber with
And load rotating mechanism can rotate synchronously in order to carry out CT scan to test specimen, be in load shape to obtain test specimen
The configuration state of state, is more advantageous to scientific research.
Further, it is provided with self-aligning thrust roller bearing in the bottom of the first rotary oil cylinder, by the bottom of first piston
It is connect with self-aligning thrust roller bearing, during the test, self-aligning thrust roller bearing can play limit to first piston
Effect, limitation first piston is contacted with the upper end cover of the first cylinder body, thus guarantee that first piston is in suspended state, moreover,
First piston is in plumbness always under the action of self-aligning thrust roller bearing, and the top of first piston and rotating platform connect
It connects, to improve the stability of rotation of rotating platform.
Further, Circular gratings read head is set at the upper surface of big belt wheel pedestal, is set at the lower surface of big belt wheel
Circular gratings ruler is set, when big belt wheel rotation, Circular gratings read head can read the scale on Circular gratings ruler in real time, pass through the number of detection
According to the corner and revolving speed of big belt wheel can be calculated, to realize the high-precision control of rotating platform.
Still further, being provided with rotary slip ring at the top of the second rotary oil cylinder, rotary slip ring includes connected stator
And rotor, stator are fixed on the top of the second cylinder body, and axis is provided with through-hole, the top of second piston in the inside of second piston
Portion stretches out the second cylinder body and connect with rotor, and the bottom of second piston stretches out the second cylinder body and passes through torque limiter and pressure chamber
Connection.During the test, the indoor sensor line of pressure is connected to the interface of rotor by the through-hole inside second piston
On, and sensor signal extraction is transferred on the console on ground by stator, since stator is fixed on the second cylinder body,
Fixed during test, so as to avoid the problem that occurring during the test route winding, guarantee test can be suitable
Benefit carries out.Also, pressure chamber is connect by torque limiter with second piston, and the transmitting of Lai Jinhang torque is turned round when torque is excessive
Square limiter disengages automatically, and pressure chamber can be prevented to be damaged because torque is excessive, to improve the use longevity of pressure chamber
Life.
Further, testing machine is also provided with follower, and follower can follow carrying to revolve during the test
Rotation mechanism, pressure chamber and load rotating mechanism rotate synchronously.Setting in this way can will provide confining pressure for pressure chamber
The load pump of the test(ing) liquids such as liquid, Leachate site and fracturing fluid is fixed on follower, by confining pressure pipeline, seepage flow pipeline and pressure break
Pipeline etc. passes through the through-hole being arranged in second piston and connect with pressure chamber, and during the test, follower drives above-mentioned each
Kind load pump and pressure chamber rotate synchronously, so as to avoid the problem that occurring during the test various pipelines windings.Certainly,
Power control cabinet can also be arranged on follower, make power control cabinet with carrying rotating mechanism, pressure chamber and load rotating mechanism
It rotates synchronously, so as to avoid the problem that occurring during the test various circuit windings, to improve the peace of testing machine
Quan Xing.
Further, the wall thickness that pressure chamber cylinder is located at test specimen position is less than pressure chamber cylinder and is located at test specimen position
The wall thickness of surrounding.Setting in this way, can reduce the penetration resistance of ray, to improve the quality of CT scan image.
Further, pressure chamber further includes high/low temperature slip ring and heat exchanger tube, and high/low temperature slip ring sleeve is outside pressure chamber cylinder
Face, heat exchanger tube are arranged in pressure chamber cylinder.Setting in this way can be recycled to heat exchanger tube by high/low temperature slip ring and provide height
For Low Temperature Liquid to control the temperature of confining pressure oil in pressure chamber, i.e. test specimen can carry out temperature field test in pressure chamber, thus
Improve the functionality of pressure chamber.
Further, it is additionally provided with the first sealing ring, the second sealing ring and third sealing ring on high/low temperature stator, first
The downside of lead channel is arranged in sealing ring, and the second sealing ring is arranged between lead channel and liquid return trough, and the setting of third sealing ring exists
The upside of liquid return trough.Setting in this way can be avoided loss and the liquid of the liquid flowed in lead channel and liquid return trough
It influences each other between body, to improve the reliability of high/low temperature slip ring.
Further, bulb and ball cup are also provided in pressure chamber, the bottom of bulb is arranged in plane, bulb
The bottom of the spherical setting in top, ball cup is arranged in spherical cambered surface, and the spherical cambered surface of ball cup is adapted with the spherical surface of bulb, bulb
The top of seat is arranged in plane, and during the test, bulb and ball cup are mounted between seaming chuck and pressure piston, make ball
The bottom of head is connect with seaming chuck, and the top of bulb and the bottom of ball cup connect, the top of ball cup and the bottom of pressure piston
Portion's connection.Setting in this way, during the test, can axial compressive force suffered by guarantee test sample perpendicular to test sample
The end face of product avoids test specimen stress raisers.
Further, the rotatable rock mechanics experiment machine of heavy duty further includes transport vehicle, guide rail and fixed frame, and fixed frame is solid
It is scheduled on bottom plate, guide rail is arranged on fixed frame, and during the test, pressure chamber can be placed on transport vehicle, transport vehicle energy
It is enough to be moved on guide rail to drive pressure chamber mobile.Setting in this way is driven pressure chamber mobile by transport vehicle, kept away
Exempt to move pressure chamber by manually, it is convenient and labor-saving, while can also avoid during artificial mobile pressure chamber to people
Body damages, to improve the efficiency and safety of testing machine.
A kind of scheme 1: rotatable rock mechanics experiment machine of heavy duty, which is characterized in that the rotatable rock mechanics of heavy duty
Testing machine include fixing component, carrying rotating mechanism, pressure chamber and load rotating mechanism, the carrying rotating mechanism and it is described add
It carries rotating mechanism to be respectively provided on the fixing member, the pressure chamber is connected to the carrying rotating mechanism and the load is revolved
Between rotation mechanism, during the test, the carrying rotating mechanism, the pressure chamber and the load rotating mechanism can be same
Step rotation.
Scheme 2: the rotatable rock mechanics experiment machine of heavy duty according to scheme 1, which is characterized in that the fixing component
Including bottom plate, top plate and the multiple columns being arranged between the bottom plate and the top plate, the carrying rotating mechanism setting
On the bottom plate, the load rotating mechanism is arranged on the top plate.
Scheme 3: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 2, which is characterized in that the carrying rotation
Mechanism includes rotating platform, the first rotary oil cylinder, self-aligning thrust roller bearing, the first drive member and the first driving member, institute
The top that first rotary oil cylinder is arranged in rotating platform is stated, first rotary oil cylinder and first drive member are all provided with
It sets on the bottom plate, the bottom of first rotary oil cylinder, first driving is arranged in the self-aligning thrust roller bearing
Component is connect to drive the rotating platform to rotate with the rotating platform by first driving member, is being tested
When, the rotating platform can be connect with the bottom of the pressure chamber and the top of the pressure chamber can be revolved with the load
Rotation mechanism connection is to drive the pressure chamber and the load rotating mechanism to rotate synchronously.
Scheme 4: the rotatable rock mechanics experiment machine of heavy duty according to scheme 3, which is characterized in that first rotation
Oil cylinder includes the first cylinder body and is arranged in the intracorporal first piston of the first cylinder, and first cylinder body is fixed on the bottom plate
On, the top of the first piston is stretched out first cylinder body and is connect with the rotating platform, and the bottom of the first piston is stretched
First cylinder body is connect with the self-aligning thrust roller bearing out.
Scheme 5: the rotatable rock mechanics experiment machine of heavy duty according to scheme 4, which is characterized in that first driving
Component is servo motor, and first driving member includes retarder, small pulley, belt, big belt wheel and big belt wheel pedestal, described
The output shaft of servo motor connect by the retarder with the small pulley, the small pulley by the belt with it is described greatly
Belt wheel connection, the big belt wheel pedestal are fixed on the top of first cylinder body, and the big belt wheel is arranged in a manner of rotationally
It is connect on the big belt wheel pedestal and with the rotating platform.
Scheme 6: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 5, which is characterized in that in the big belt wheel
Be provided with multiple guide sleeves, the bottom of the rotating platform is provided with multiple guide rods, the multiple guide sleeve with it is the multiple
Guide rod is matched so that the big belt wheel to be connect with the rotating platform.
Scheme 7: the rotatable rock mechanics experiment machine of heavy duty according to scheme 6, which is characterized in that the big belt wheel bottom
The upper surface of seat is provided with Circular gratings read head, and the lower surface of the big belt wheel is provided with Circular gratings ruler, when the big belt wheel rotates
When, the Circular gratings read head can read the scale on the Circular gratings ruler in real time to detect the angular displacement of the big belt wheel.
Scheme 8, the rotatable rock mechanics experiment machine of heavy duty according to scheme 3, which is characterized in that the load rotation
Mechanism includes the second rotary oil cylinder, rotary slip ring and torque limiter, and second rotary oil cylinder is fixed on the top plate, institute
The top that second rotary oil cylinder is arranged in rotary slip ring is stated, the bottom of second rotary oil cylinder passes through the torque limit
Device is connect with the pressure chamber.
Scheme 9: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 8, which is characterized in that second rotation
Oil cylinder includes the second cylinder body and is arranged in the intracorporal second piston of the second cylinder, the rotary slip ring include connected stator and
Rotor, second cylinder body are fixed on the top plate by cylinder body connector, and the stator is fixed on second cylinder body
Top is provided with through-hole along axis inside the second piston, the top of the second piston stretch out second cylinder body and with
The rotor connection, the bottom of the second piston stretch out second cylinder body and pass through the torque limiter and the pressure
Room connection.
Scheme 10: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 2, which is characterized in that the heavy duty can
Rotating rock mechanics experiment machine further includes follower, and the follower is arranged on the top plate, and the follower is set
Being set to can follow the carrying rotating mechanism, the pressure chamber and the load rotating mechanism are synchronous to turn during the test
It is dynamic.
Scheme 11: the rotatable rock mechanics experiment machine of heavy duty according to scheme 10, which is characterized in that the follower
Structure include the second drive member, the second driving member and servo-actuated turntable, second drive member, second driving member and
The servo-actuated turntable is arranged on the top plate, and second drive member is servo-actuated by second driving member with described
Turntable connection is to drive the servo-actuated turntable rotation.
Scheme 12: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 11, which is characterized in that described second drives
Dynamic component is driving motor, and second driving member is pinion gear and gear wheel, and second driving motor is fixed on described
On top plate, the gear wheel is arranged on the top plate in a manner of rotationally, the output shaft of the driving motor and the small tooth
Wheel connection, the pinion gear are connect with the gear wheel, and the servo-actuated turntable is fixed on the gear wheel.
Scheme 13: the rotatable rock mechanics experiment machine of heavy duty according to scheme 9, which is characterized in that the pressure chamber
Including pedestal, pressure chamber cylinder, upper end cover, pressure piston and the push-down head and seaming chuck being arranged in the pressure chamber cylinder, institute
The bottom for stating pressure chamber cylinder is connect with the pedestal, and the top of the pressure chamber cylinder is connect with the upper end cover, the push-down head
On the base, the bottom of the pressure piston is arranged in the seaming chuck for setting, during the test, the upper end cover energy
Enough to connect with the torque limiter, the top of the pressure piston can stretch out the upper end cover and the second piston connects
It connects.
Scheme 14: the rotatable rock mechanics experiment machine of heavy duty according to scheme 13, which is characterized in that the pressure chamber
The wall thickness that cylinder is located at test specimen position is less than the pressure chamber cylinder and is located at the wall thickness around test specimen position.
Scheme 15: the rotatable rock mechanics experiment machine of heavy duty according to scheme 13, which is characterized in that the pressure chamber
It further include high/low temperature slip ring and heat exchanger tube, the high/low temperature slip ring sleeve is outside the pressure chamber cylinder, the heat exchanger tube setting
In the pressure chamber cylinder, during the test, it can be recycled by high/low temperature slip ring to the heat exchanger tube and high/low temperature liquid is provided
To control the temperature of confining pressure oil in the pressure chamber.
Scheme 16: the rotatable rock mechanics experiment machine of heavy duty according to scheme 15, which is characterized in that the high/low temperature
Slip ring includes connected high/low temperature stator and high/low temperature rotor, and the high/low temperature stator is connect with the fixing component, the height
Low temperature rotor is connect with the pressure chamber cylinder.
Scheme 17: the rotatable rock mechanics experiment machine of heavy duty according to scheme 16, which is characterized in that the high/low temperature
The first inlet, the first liquid return hole, lead channel and liquid return trough are provided on stator, be provided on the high/low temperature rotor second into
Liquid mouth and the second liquid return hole, when the high/low temperature rotor is with respect to high/low temperature stator rotation, the lead channel is always with described the
One inlet is connected to second inlet, and the liquid return trough connects with first liquid return hole and second liquid return hole always
It is logical.
Scheme 18: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 17, which is characterized in that the pressure chamber
It is provided with third inlet and third liquid return hole on cylinder, second inlet passes through the third inlet and the heat exchanger tube
One end connection, second liquid return hole is connected to by the third liquid return hole with the other end of the heat exchanger tube.
Scheme 19: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 17, which is characterized in that the high/low temperature
The first sealing ring, the second sealing ring and third sealing ring are additionally provided on stator, first sealing ring is arranged in the feed liquor
The downside of slot, second sealing ring are arranged between the lead channel and the liquid return trough, and the third sealing ring setting exists
The upside of the liquid return trough.
Scheme 20: the rotatable rock mechanics experiment machine of heavy duty according to scheme 13, which is characterized in that the pressure chamber
It further include bulb and ball cup, the bottom of the bulb is arranged in plane, the spherical setting in the top of the bulb, the bulb
The bottom of seat is arranged in spherical cambered surface, and the spherical cambered surface of the ball cup is adapted with the spherical surface of the bulb, the top of the ball cup
Portion is arranged in plane, and during the test, the bottom of the bulb can be connect with the seaming chuck, the top energy of the bulb
Enough to connect with the bottom of the ball cup, the top of the ball cup can be connect with the bottom of the pressure piston.
Scheme 21: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 20, which is characterized in that on the bulb
It is provided with the first pressure break hole and/or the first seepage flow hole.
Scheme 22: according to the rotatable rock mechanics experiment machine of heavy duty described in scheme 21, which is characterized in that the seaming chuck
On be provided with the second pressure break hole or the second seepage flow hole.
Scheme 23: the rotatable rock mechanics experiment machine of the heavy duty according to any one of scheme 2 to 22, feature exist
In the rotatable rock mechanics experiment machine of heavy duty further includes transport vehicle, guide rail and fixed frame, and the fixed frame is fixed on described
On bottom plate, the guide rail is arranged on the fixed frame, and during the test, the pressure chamber can be placed at the transport vehicle
On, the transport vehicle can be moved on the guide rail to drive the pressure chamber mobile.
Detailed description of the invention
The preferred embodiment of the present invention described with reference to the accompanying drawings, in attached drawing:
Fig. 1 is the overall structure diagram of the rotatable rock mechanics experiment machine of heavy duty of the invention;
Fig. 2 is the structural schematic diagram of carrying rotating mechanism of the invention;
Fig. 3 is the cross-sectional view of carrying rotating mechanism of the invention;
Fig. 4 is the structural schematic diagram of load rotating mechanism of the invention;
Fig. 5 is the structural schematic diagram of pressure chamber of the invention;
Fig. 6 is the cross-sectional view of pressure chamber of the invention;
Fig. 7 is the cross-sectional view of high/low temperature slip ring of the invention;
Fig. 8 is the perspective view of bulb of the invention;
Fig. 9 is the cross-sectional view of ball cup of the invention;
Figure 10 is the cross-sectional view of the seaming chuck suitable for crushing test of the invention;
Figure 11 is the cross-sectional view of the seaming chuck suitable for seepage tests of the invention.
Specific embodiment
Firstly, it will be apparent to a skilled person that these embodiments are used only for explaining technology of the invention
Principle, it is not intended that limit the scope of the invention.For example, although each component of pilot system is by a certain percentage in attached drawing
It draws, but this proportionate relationship is non-unalterable, those skilled in the art, which can according to need, makes adjustment to it, to fit
Answer specific application.
It should be noted that in the description of the present invention, term " center ", "upper", "lower", "top", "bottom", "inner",
The direction of the instructions such as "outside" or the term of positional relationship are direction based on the figure or positional relationship, this is just for the sake of just
In description, rather than indication or suggestion described device or element must have a particular orientation, constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.To those skilled in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
The test specimen size being applicable in based on the existing CT rock test rig pointed out in background technique is small, causes to obtain
Test specimen Complete Stress-Strain Curve, CT scan result cannot reflect reality the heterogeneity of geologic body, noncontinuity with
And the problem of post-failure behavior.The present invention provides a kind of rotatable rock mechanics experiment machines of heavy duty, it is intended to enable testing machine into
The load test of the bigger load of row is so that testing machine can carry out load test to large-sized test specimen, to be tested
The Complete Stress-Strain Curve of sample, and CT scan structure is enable preferably to reflect reality the heterogeneity of geologic body, non-company
Continuous property and post-failure behavior, are more advantageous to scientific research.
Specifically, as shown in Figure 1, the rotatable rock mechanics experiment machine of heavy duty includes fixing component 1, carrying rotating mechanism
2, pressure chamber 3 and load rotating mechanism 4, carrying rotating mechanism 2 and load rotating mechanism 4 are arranged in fixing component 1, pressure
Room 3 is connected between carrying rotating mechanism 2 and load rotating mechanism 4, during the test, carries rotating mechanism 2, pressure chamber 3
And load rotating mechanism 4 can rotate synchronously.Setting in this way, i.e., will carrying rotating mechanism 2 and load rotating mechanism 4
It is arranged in fixing component 1, reaction of bearing frame is used as by fixing component 1, bears reaction of bearing during the test, relatively
In existing CT rock mechanics experiment machine by pressure chamber as reaction of bearing frame, fixing component 1 is able to bear bigger support
Counter-force makes testing machine of the invention be able to carry out the load test of bigger load, so as to larger sized test specimen
Load test is carried out, to obtain the Complete Stress-Strain Curve of test specimen, and CT scan structure is enable preferably to reflect
The heterogeneity and noncontinuity of real geologic body, more conducively scientific research, also, pressure chamber 3 is connected to carrying whirler
Between structure 2 and load rotating mechanism 4, during carrying out load test, carrying rotating mechanism 2, pressure chamber 3 and load rotation
Mechanism 4 can rotate synchronously in order to carry out CT scan to test specimen, to obtain the structure that test specimen is in stress state
State is more advantageous to scientific research.
Preferably, as shown in Figure 1, fixing component 1 include bottom plate 11, top plate 12 and setting bottom plate 11 and top plate 12 it
Between multiple columns 13, carrying rotating mechanism 2 be arranged on bottom plate 11, load rotating mechanism 4 be arranged on top plate 12.Wherein,
Bottom plate 11 and top plate 12 are arranged in rectangle, and the quantity of column 13 is 4 and is separately positioned on 4 angles of bottom plate 11 and top plate 12
On, it is of course also possible to which the shapes such as squarely or circle are arranged in bottom plate 11 and top plate 12, the quantity of column 13 is also not limited to 4
A, those skilled in the art can flexibly set the concrete shape and column 13 of bottom plate 11 and top plate 12 in practical applications
Particular number, as long as being able to bear the branch during test by the fixing component 1 that bottom plate 11, top plate 12 and column 13 form
Support counter-force.It is integrated moreover, column 13 can be fixedly connected or be arranged with bottom plate 11, column 13 can be consolidated with top plate 12
Fixed connection or setting are integrated, alternatively, bottom plate 11, column 13 and 12 three of top plate setting are integrated, those skilled in the art
Member can flexibly set the specific type of attachment of column 13 Yu bottom plate 11 and top plate 12 in practical applications, as long as can will stand
Column 13 is fixed between bottom plate 11 and top plate 12.
Preferably, as shown in Figure 1, being also provided with transport vehicle on bottom plate 11 since test specimen size is big, weight weight
51, guide rail 52 and fixed frame 53, fixed frame 53 are fixed on bottom plate 11, and guide rail 52 is arranged on fixed frame 53,51 energy of transport vehicle
It is enough to be moved on guide rail 52.During the test, pressure chamber 3 is placed on transport vehicle 51, test specimen is mounted on pressure
In room 3, then pressure chamber 3 is driven to be moved to testing position by transport vehicle 51.Wherein, it is provided with lead screw on guide rail 52, led to
The rotation of transport motor driven lead screw is crossed to drive transport vehicle 51 to move linearly.It is of course also possible to by manual rotation's lead screw, or
Person is not provided with lead screw, directly installs traveling wheel on transport vehicle 51, rolls transport vehicle 51 on track 52, then alternatively,
Sliding block is set on transport vehicle 51, slides transport vehicle 51 on track 52, etc., those skilled in the art can be in reality
The specific driving method and motion mode that transport vehicle 51 is flexibly set in the application of border, as long as transport vehicle 51 can be made in track 52
Upper movement.In addition it is also possible to be not provided with transport vehicle 51, pressure chamber 3 is directly moved by modes such as manually or mechanically hands,
This adjustment and change to the specific move mode in pressure chamber 3 should all be limited to this without departing from the principle and scope of the present invention
Within the protection scope of invention.
Preferably, as shown in Figure 1, being also set up since the size of pressure chamber 3 is also very big, weight is very heavy in 12 position of top plate
Lift cylinder 6 is connected to before being tested by lift cylinder 6 with pressure chamber 3, is opened pressure chamber 3 by lift cylinder 6,
Then test specimen is mounted in pressure chamber 3, then is closed pressure chamber 3 by lift cylinder 6, disconnect lift cylinder 6 and pressure
Pressure chamber 3 equipped with test specimen is moved to testing position by transport vehicle 51 by the connection of power room 3.Similarly, it is completed in test
Afterwards, the pressure chamber 3 that unloading is completed is moved to by transport vehicle 51 and takes dress test specimen position, be connected to lift cylinder 6 and pressure
Pressure chamber 3 is opened by lift cylinder 6, then takes out test specimen out of pressure chamber 3 by room 3, then passes through lift cylinder 6
Pressure chamber 3 is closed.It is of course also possible to which operation is opened and closed to pressure chamber 3 by modes such as artificial or setting grippers.
Preferably, as shown in Figures 2 and 3, carrying rotating mechanism 2 includes rotating platform 21, the first rotary oil cylinder 22, thrust
The top of the first rotary oil cylinder 22 is arranged in self-aligning roller bearing 23, the first drive member and the first driving member, rotating platform 21
Portion, the first rotary oil cylinder 22 and the first drive member are arranged on bottom plate 11, and self-aligning thrust roller bearing 23 is arranged first
The bottom of rotary oil cylinder 22, the first drive member are connect with rotating platform 21 by the first driving member to drive rotating platform 21
Rotation.First rotary oil cylinder 22 includes the first cylinder body 221 and the first piston 222 being arranged in the first cylinder body 221, the first cylinder
Body 221 is fixed on bottom plate 11, and the top of first piston 222 is stretched out the first cylinder body 221 and connect with rotating platform 21, first piston
222 bottom is stretched out the first cylinder body 221 and is connect with self-aligning thrust roller bearing 23, the bearing body of self-aligning thrust roller bearing 23
231 are connect by bearing connecting plate 232 with the bottom of the first cylinder body 221, and the bottom of bearing body 231 is fixed with bearing plate
233 to play the role of support to bearing body 231.During the test, the pressure of test specimen will be housed by transport vehicle 51
Power room 3 is moved to the top of rotating platform 21, starts the first rotary oil cylinder 22, increase first piston 222 with by rotating platform
21 jack up, and contact rotating platform 21 and the bottom of pressure chamber 3, rotating platform 21 is fixedly connected with the pedestal 31 of pressure chamber 3,
And the top of pressure chamber 3 is connect with load rotating mechanism 4, under the driving of the first drive member, makes rotating platform 21, pressure
Power room 3 and load rotating mechanism 4 rotate synchronously.
In addition, it should be noted that, the first rotary oil cylinder 22 of starting, rises first piston 222, in first piston 222
It can be limited by self-aligning thrust roller bearing 23 before being contacted with 221 upper end cover of the first cylinder body, limit first piston 222 and the first cylinder body
221 upper end cover contact, to guarantee that first piston 222 is in suspended state, moreover, in the work of self-aligning thrust roller bearing 23
It is in plumbness always with lower first piston 222, the top of first piston 222 is connect with rotating platform 21, to improve
The stability of rotation of rotating platform 21.
Preferably, as shown in Figures 2 and 3, the first drive member is servo motor 24, and the first driving member includes retarder
(not shown), small pulley 25, belt 26, big belt wheel 27 and big belt wheel pedestal 28, the output shaft of servo motor 24 is by subtracting
Fast device is connect with small pulley 25, and small pulley 25 is connect by belt 26 with big belt wheel 27, and big belt wheel pedestal 28 is fixed on the first cylinder
The top of body 221, big belt wheel 27 are arranged on big belt wheel pedestal 28 in a manner of rotationally and connect with rotating platform 21.Wherein,
Servo motor 24 is fixed on bottom plate 11 by motor support base 29, is provided in big belt wheel 27 and the junction of big belt wheel pedestal 28
Bearing 20, preferably tapered roller bearing.Certainly, the first drive member may be set to be the types such as common driving motor, this
Field technical staff can flexibly set the concrete type of the first drive member in practical applications, as long as passing through the first driving
Component is able to carry out driving.It directly engages and connect with gear wheel in addition, the first driving member may be set to be pinion gear
Etc. structure types, those skilled in the art can flexibly set the specific structure shape of the first driving member in practical applications
Formula, as long as can be connect the first drive member with rotating platform 21 by the first driving member.
Preferably, as shown in figure 3, being provided with multiple guide sleeves 271 in big belt wheel 27, the bottom of rotating platform 21 is provided with
Guide rod 211 is inserted into guide sleeve 271 by multiple guide rods 211, and big belt wheel 27 is able to drive rotating platform 21 together when rotating
Rotation, moreover, guide rod 211 can move up in guide sleeve 271, but have one always when rotating platform 21 is jacked up
It is partly interposed in guide sleeve 271.Wherein, the quantity of guide rod 211 is 10, is evenly provided on the bottom of rotating platform 21
Portion, correspondingly, the quantity of guide sleeve 271 are also 10, setting position of the guide sleeve 271 in big belt wheel 27 and guide rod 211
It corresponds, certainly, the quantity of guide rod 211 and guide sleeve 271 is not limited only to 10, and those skilled in the art can be in reality
The particular number of guide rod 211 and guide sleeve 271 is flexibly set in the application of border, as long as passing through guide rod 211 and guide sleeve 271
Rotating platform 21 and big belt wheel 27 can be connected by matching.
Preferably, as shown in figure 3, in order to improve the control precision of rotating platform 21, in the upper surface of big belt wheel pedestal 28
It is provided with Circular gratings read head 71, the lower surface of big belt wheel 27 is provided with Circular gratings ruler 72, when big belt wheel 27 rotates, Circular gratings
Read head 71 can read the scale on Circular gratings ruler 72 in real time, by the data of detection can calculate big belt wheel 27 corner and
Revolving speed, to realize the high-precision control of rotating platform 21.
Preferably, as shown in Figure 1 and Figure 4, load rotating mechanism 4 includes the second rotary oil cylinder 41, rotary slip ring 42 and turns round
Square limiter 43, the second rotary oil cylinder 41 are fixed on top plate 12, and the top of the second rotary oil cylinder 41 is arranged in rotary slip ring 42,
The bottom of second rotary oil cylinder 41 is connect by torque limiter 43 with pressure chamber 3.Second rotary oil cylinder 41 includes the second cylinder body
411 and the second piston 412 that is arranged in the second cylinder body 411, rotary slip ring 42 includes connected stator 421 and rotor 422,
The centre of top plate 12 is provided with circular hole, and cylinder body connector 44 passes through circular hole and is fixedly connected with top plate 12, the second cylinder body 411
It is fixedly connected with the top of cylinder body connector 44, stator 421 is fixed on the top of the second cylinder body 411,412 inside edge of second piston
Axis is provided with through-hole, and the top of second piston 412 is stretched out the second cylinder body 411 and connect with rotor 422, second piston 412
Bottom is stretched out the second cylinder body 411 and is connect by torque limiter 43 with pressure chamber 3.During the test, the biography in pressure chamber 3
Sensor route is connected on the interface of rotor 422 by the through-hole inside second piston 412, and passes through stator 421 for sensor
Signal extraction is transferred on the console on ground, since stator 421 is fixed on the second cylinder body 411, is fixed during the test
It is motionless, to solve the problems, such as route winding.
In addition, it should be noted that, during being tested, by the second rotary oil cylinder 41 to 3 loading axis of pressure chamber
Xiang Li, the pressure sensor being arranged in pressure chamber 3 are capable of the axial compressive force F2 of the second rotary oil cylinder of real-time detection 41, and will pressure
Force sensor signals are transferred to pressure controller, pressure sensor signal of the pressure controller according to detection, output control signal
To electro-hydraulic proportional valve, electro-hydraulic proportional valve controls the pressure F1 of the first rotary oil cylinder 22 according to control signal, is always ensured that first
The pressure F1 of rotary oil cylinder 22 is greater than the pressure F2 of the second rotary oil cylinder 41, this part of power F3 is by self-aligning thrust roller bearing 23
It bears, and the pressure difference of the pressure F2 of the pressure F1 of the first rotary oil cylinder 22 and the second rotary oil cylinder 41 is definite value, i.e. thrust
The power F3 that self-aligning roller bearing 23 is born is definite value, and setting in this way can effectively control self-aligning thrust roller bearing
Frictional force brought by 23 controls frictional force brought by self-aligning thrust roller bearing 23 in minimum.Carry rotating mechanism 2
Support process uses mixing support, i.e. oil film+bearing support, has both played positioning and the aligning of self-aligning thrust roller bearing 23
It acts on, and reduce spin friction resistance of the testing machine under fully loaded transportation condition to have to improve the stationarity of rotating platform 21
It is controlled conducive to the high-precision rotary of rotating platform 21.
Preferably, as shown in Figure 1, the rotatable rock mechanics experiment machine of heavy duty further includes follower 8, follower 8 is set
It sets on top plate 12, follower 8 is set as that carrying rotating mechanism 2, pressure chamber 3 and load can be followed during the test
Rotating mechanism 4 rotates synchronously.Wherein it is possible to by setting displacement sensor with guarantee follower 8 and carrying rotating mechanism 2,
Pressure chamber 3 and load rotating mechanism 4 rotate synchronously, or can be guaranteed by the fixed revolving speed of setting follower 8 with
It carries rotating mechanism 2, pressure chamber 3 and load rotating mechanism 4 to rotate synchronously, those skilled in the art can be in practical applications
It flexibly sets especially by which kind of mode and guarantees that follower 8 and carrying rotating mechanism 2, pressure chamber 3 and load rotate
Mechanism 4 rotates synchronously.
In addition, as shown in Figure 1, adding for the test(ing) liquids such as confining pressure liquid, Leachate site and fracturing fluid can will be provided for pressure chamber 3
It carries pump 91 to be fixed on follower 8, by confining pressure pipeline, seepage flow pipeline and pressure break pipeline etc. by being arranged in second piston 412
Interior through-hole is connect with pressure chamber 3, and during the test, follower 8 drives above-mentioned various load pumps 91 synchronous with pressure chamber 3
Rotation, so as to avoid the winding problem of various pipelines.Certainly, power control cabinet 92 can also be arranged on follower 8, makes automatically controlled
Cabinet 92 is rotated synchronously with carrying rotating mechanism 2, pressure chamber 3 and load rotating mechanism 4, and the winding to avoid various circuits is asked
Topic.
Preferably, as shown in Figure 1, follower 8 includes the second drive member, the second driving member and servo-actuated turntable 81,
Second drive member, the second driving member and servo-actuated turntable 81 are arranged on top plate 12, and the second drive member is passed by second
Dynamic component is connect to drive servo-actuated turntable 81 to rotate with servo-actuated turntable 81.Wherein, the second drive member be driving motor 82, second
Driving member is pinion gear 83 and gear wheel 84, and driving motor 82 is fixed on top plate 12, and gear wheel 84 is set in a manner of rotationally
It sets on top plate 12, the output shaft of driving motor 82 is connect with pinion gear 83, and pinion gear 83 is connect with gear wheel 84, is servo-actuated turntable
81 are fixed on gear wheel 84.Certainly, the second drive member may be set to be the types such as servo motor, those skilled in the art
The concrete type of the second drive member can be flexibly set in practical applications, as long as being able to carry out by the second drive member
Driving.In addition, the second driving member may be set to be the structure types such as belt wheel and belt transmission, those skilled in the art
The specific constructive form of the second transmission framework can be flexibly set in practical applications, as long as can by the second driving member
Second drive member is connect with servo-actuated turntable 81.In addition, gear wheel 84 can be fixed on top by cylinder body connector 44
On plate 12, and bearing is set in the junction of gear wheel 84 and cylinder body connector 44, it is of course also possible to which gear wheel 84 is direct
It is rotatablely connected with top plate 12, those skilled in the art can flexibly set the tool of gear wheel 84 Yu top plate 12 in practical applications
Body type of attachment, as long as gear wheel 84 can be arranged in a rotating manner on top plate 12.
Preferably, as shown in figure 5, pressure chamber 3 include pedestal 31, pressure chamber cylinder 32, upper end cover 33, pressure piston 34 and
Push-down head 35 and seaming chuck 36 in pressure chamber cylinder 32 are set, and the bottom of pressure chamber cylinder 32 is connect with pedestal 31, pressure chamber cylinder
32 top is connect with upper end cover 33, and push-down head 35 is arranged on pedestal 31, and the bottom of pressure piston 34 is arranged in seaming chuck 36.
Wherein, pressure chamber cylinder 32 and pedestal 31 are to be detachably connected, and when taking dress test specimen, pressure chamber cylinder 32 and pedestal 31 can be divided
From during the test, pressure chamber cylinder 32 and pedestal 31 is fixed.Push-down head 35 can be fixedly connected or be arranged with pedestal 31
It is integrated, seaming chuck 36 can be fixedly connected or be arranged with pressure piston 34 and be integrated.During the test, by test specimen
It is fixed between push-down head 35 and seaming chuck 36, starts the second rotary oil cylinder 41, second piston 412 declines and drives torque limit
Device 43 is moved down to be contacted with the upper end cover 33 of pressure chamber 3, and upper end cover 33 is fixedly connected with torque limiter 43, starts servo motor
24, driving first piston 222, rotating platform 21, pressure chamber 3, torque limiter 43, second piston 412 rotate synchronously, and second is living
Plug 412, which continues to move down, to be contacted with pressure piston 34 and applies axial force to pressure piston 34, and pressure piston 34 transmits the force to examination
Test sample.
In addition, it is noted that being provided with multiple inlet 321 (such as confining pressure liquid inlets, seepage flow in pressure chamber cylinder 32
Liquid inlet and fracturing fluid inlet etc.), inlet 321 by piping connection to the through-hole of second piston 412, and with setting
Load pump 91 (such as confining pressure liquid load pump, percolating fluid load pump and fracturing fluid load pump) connection on servo-actuated turntable 81,
When test, can by load pump 91 into pressure chamber 3 load test liquid (such as confining pressure liquid, percolating fluid and fracturing fluid) to examination
It tests sample and carries out multi- scenarios method test.Certainly, it is additionally provided with port (not shown) in pressure chamber cylinder 32, can will set
The signal for setting sensor (such as radial extended device, axial extended device and pressure sensor) acquisition in pressure chamber 3 passes through biography
Sensor is routed through port and is connected in the through-hole of second piston 412, and connect with the interface of rotor 422, then pass through stator
421 are transferred to sensor signal extraction on the console on ground.
Preferably, as shown in Figs. 5 to 7, in order to increase temperature field to test specimen, height has been set in the outside of pressure chamber 3
Low temperature slip ring 37, and heat exchanger tube 38 is provided in pressure chamber cylinder 32.During the test, high/low temperature pumps (not shown) energy
The temperature for providing high/low temperature liquid to control confining pressure liquid in pressure chamber 3 is enough recycled to heat exchanger tube 38 by high/low temperature slip ring 37.Specifically
For, high/low temperature slip ring 37 includes the high/low temperature stator 371 and high/low temperature rotor 372 being connected, high/low temperature stator 371 and high/low temperature
Rotor 372 is relatively rotatable to each other, the junction of high/low temperature stator 371 and high/low temperature rotor 372 be provided with upper bearing (metal) 373 and under
Bearing 374, high/low temperature stator 371 is connect with fixing component 1, fixed during the test, high/low temperature rotor 372 and pressure
Room cylinder 32 connects, and during the test as pressure chamber cylinder 32 rotates, is provided with the first inlet on high/low temperature stator 371
3711, the first liquid return hole 3712, lead channel 3713 and liquid return trough 3714, the first inlet 3711 and the equal edge of the first liquid return hole 3712
High/low temperature stator 371 is arranged radially, and lead channel 3713 and liquid return trough 3714 are along the circumferential setting one of high/low temperature stator 371
Week, the first inlet 3711 are connected to lead channel 3713, and the first liquid return hole 3712 is connected to liquid return trough 3714, the first inlet
3711 connect with the liquid outlet of high/low temperature pump, and the first liquid return hole 3712 is connect with the inlet that high/low temperature pumps, high/low temperature rotor 372
On be provided with the second inlet 3721 and the second liquid return hole 3722, the second inlet 3721 and the second liquid return hole 3722 are along height
The axial setting of warm rotor 372, when high/low temperature rotor 372 is rotated with respect to high/low temperature stator 371, the second inlet 3721 and into
Liquid bath 3713 is connected to always, and the second liquid return hole 3722 is connected to always with liquid return trough 3714, is provided with third in pressure chamber cylinder 32
Inlet 322 and third liquid return hole 323, the second inlet 3721 are connected to third inlet 322, third inlet 322 with change
One end of heat pipe 38 is connected to, and the second liquid return hole 3722 is connected to third liquid return hole 323, third liquid return hole 323 and heat exchanger tube 38
Other end connection, so far forms a complete cycle access.High-temperature liquid from the liquid outlet that high/low temperature pumps pump out after respectively by the
One inlet 3711, lead channel 3713, the second inlet 3721 and third inlet 322 enter in heat exchanger tube 38, high-temperature liquid
It flows in heat exchanger tube 38 and is exchanged with the confining pressure liquid progress heat in pressure chamber cylinder 32, confining pressure liquid temperature gradually rises, and high temperature
The temperature of liquid, which gradually decreases, becomes Low Temperature Liquid, Low Temperature Liquid flowed out out of heat exchanger tube 38 after by 323, second times liquid of third liquid return hole
Mouth 3722, liquid return trough 3714 and the first liquid return hole 3712 enter the inlet of high/low temperature pump, so far complete the circulation of high/low temperature liquid
Flowing.
Preferably, as shown in fig. 7, in order to avoid the low temperature liquid phase in the high-temperature liquid and liquid return trough 3714 in lead channel 3713
Mutually influence and the loss of liquid, are additionally provided with the first sealing ring 3715,3716 and of the second sealing ring on high/low temperature stator 371
The downside of lead channel 3713 is arranged in third sealing ring 3717, the first sealing ring 3715, and the second sealing ring 3716 is arranged in feed liquor
Between slot 3713 and liquid return trough 3714, the upside of liquid return trough 3714 is arranged in third sealing ring 3717.
Preferably, as shown in fig. 6, in order to reduce the penetration resistance of ray to improve the quality of CT imaging, pressure chamber cylinder 32
Wall thickness positioned at test specimen position 324 is less than pressure chamber cylinder 32 and is located at the wall thickness around test specimen position 324.This field skill
Art personnel can flexibly set pressure chamber cylinder according to factors such as the material of pressure chamber cylinder 32, test pressure and radiographic source penetration powers
32 are located at the specific wall thickness of test specimen position 324.
Preferably, as shown in fig. 6, in order to which axial compressive force suffered by guarantee test sample is perpendicular to the end face of test specimen,
Test specimen stress raisers are avoided, bulb 39 and ball cup 30 are also provided in pressure chamber 3, the bottom of bulb 39 is in flat
The bottom of face setting, the spherical setting in the top of bulb 39, ball cup 30 is arranged in spherical cambered surface, the spherical cambered surface and ball of ball cup 30
First 39 spherical surface is adapted, and the top of ball cup 30 is arranged in plane, and during the test, bulb 39 and ball cup 30 are installed
Between seaming chuck 36 and pressure piston 34, it connect the bottom of bulb 39 with seaming chuck 36, the top of bulb 39 and ball cup
30 bottom connection, the top of ball cup 30 is connect with the bottom of pressure piston 34.Wherein, as shown in Figure 8 and Figure 9, bulb 39
On be provided with connecting hole 393, connecting hole 301 is provided on ball seat 30, bulb 39 can be elastic by spring etc. with ball cup 30
Part connection, setting in this way can guarantee that bulb 39 will not be because of self gravity after completing to test taking-up test specimen
And it falls off, and bulb 39 can be rotated relative to ball seat 30 to avoid test specimen stress raisers during the test.
Preferably, it is provided with the first pressure break hole 391 as shown in Fig. 8, Figure 10 and Figure 11, on bulb, is arranged on seaming chuck 36a
There is the second pressure break hole 361, the first pressure break hole 391 is connected to the second pressure break hole 361, opens on needing the sample for carrying out crushing test
Equipped with circular hole, when carrying out crushing test, fracturing fluid can enter test by the first pressure break hole 391 and the second pressure break hole 361
The circular hole of sample is to carry out crushing test to test specimen.In addition, the first seepage flow hole 392 can also be set on bulb 39, on
Second seepage flow hole 362 is set on pressure head 36b, is that percolating fluid can pass through the first seepage flow hole 392 and second carrying out seepage tests
The upper surface of test specimen is arrived to carry out seepage tests to test specimen in seepage flow hole 362.In view of fracturing fluid and percolating fluid
Injection mode is different, and one is from the circular hole injection on test specimen, and one is injected from the end face of test specimen, in order to reach
Better test effect, the second pressure break hole 361 and the second seepage flow hole 362 are separately positioned on two seaming chucks 36, are being pressed
When splitting test, using the seaming chuck 36a for being provided with the second pressure break hole 361, when carrying out seepage tests, using being provided with the second infiltration
The seaming chuck 36b of discharge orifice 362.It, can also be with however, the first pressure break hole 391 or the first seepage flow hole 392 can only be arranged on bulb 39
First pressure break hole 391 and the first seepage flow hole 392 are arranged on same bulb 39.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of rotatable rock mechanics experiment machine of heavy duty, which is characterized in that the rotatable rock mechanics experiment machine packet of heavy duty
Include fixing component, carrying rotating mechanism, pressure chamber and load rotating mechanism, the carrying rotating mechanism and the load whirler
Structure is respectively provided on the fixing member, the pressure chamber be connected to the carrying rotating mechanism and the load rotating mechanism it
Between, during the test, the carrying rotating mechanism, the pressure chamber and the load rotating mechanism can rotate synchronously.
2. the rotatable rock mechanics experiment machine of heavy duty according to claim 1, which is characterized in that the fixing component includes
Bottom plate, top plate and the multiple columns being arranged between the bottom plate and the top plate, the carrying rotating mechanism are arranged in institute
It states on bottom plate, the load rotating mechanism is arranged on the top plate.
3. the rotatable rock mechanics experiment machine of heavy duty according to claim 2, which is characterized in that the carrying rotating mechanism
Including rotating platform, the first rotary oil cylinder, self-aligning thrust roller bearing, the first drive member and the first driving member, the rotation
Turn the top that first rotary oil cylinder is arranged in platform, first rotary oil cylinder and first drive member are arranged at
On the bottom plate, the bottom of first rotary oil cylinder, first drive member is arranged in the self-aligning thrust roller bearing
It is connect by first driving member with the rotating platform to drive the rotating platform to rotate, during the test, institute
State that rotating platform can be connect with the bottom of the pressure chamber and the top of the pressure chamber can be with the load whirler
Structure connection is to drive the pressure chamber and the load rotating mechanism to rotate synchronously.
4. the rotatable rock mechanics experiment machine of heavy duty according to claim 3, which is characterized in that first rotary oil cylinder
Including the first cylinder body and it is arranged in the intracorporal first piston of the first cylinder, first cylinder body is fixed on the bottom plate,
The top of the first piston is stretched out first cylinder body and is connect with the rotating platform, and institute is stretched out in the bottom of the first piston
The first cylinder body is stated to connect with the self-aligning thrust roller bearing.
5. the rotatable rock mechanics experiment machine of heavy duty according to claim 4, which is characterized in that first drive member
For servo motor, first driving member includes retarder, small pulley, belt, big belt wheel and big belt wheel pedestal, the servo
The output shaft of motor is connect by the retarder with the small pulley, and the small pulley passes through the belt and the big belt wheel
Connection, the big belt wheel pedestal are fixed on the top of first cylinder body, and the big belt wheel is arranged in described in a manner of rotationally
It is connect on big belt wheel pedestal and with the rotating platform.
6. the rotatable rock mechanics experiment machine of heavy duty according to claim 5, which is characterized in that be arranged in the big belt wheel
There are multiple guide sleeves, the bottom of the rotating platform is provided with multiple guide rods, the multiple guide sleeve and the multiple guiding
Bar is matched so that the big belt wheel to be connect with the rotating platform.
7. the rotatable rock mechanics experiment machine of heavy duty according to claim 6, which is characterized in that the big belt wheel pedestal
Upper surface is provided with Circular gratings read head, and the lower surface of the big belt wheel is provided with Circular gratings ruler, when big belt wheel rotation, institute
The scale on the Circular gratings ruler can be read in real time to detect the angular displacement of the big belt wheel by stating Circular gratings read head.
8. the rotatable rock mechanics experiment machine of heavy duty according to claim 3, which is characterized in that the load rotating mechanism
Including the second rotary oil cylinder, rotary slip ring and torque limiter, second rotary oil cylinder is fixed on the top plate, the rotation
Turn the top that second rotary oil cylinder is arranged in slip ring, the bottom of second rotary oil cylinder by the torque limiter with
Pressure chamber's connection.
9. the rotatable rock mechanics experiment machine of heavy duty according to claim 8, which is characterized in that second rotary oil cylinder
Including the second cylinder body and it is arranged in the intracorporal second piston of the second cylinder, the rotary slip ring includes connected stator and turns
Son, second cylinder body are fixed on the top plate by cylinder body connector, and the stator is fixed on the top of second cylinder body
Portion is provided with through-hole along axis inside the second piston, the top of the second piston stretch out second cylinder body and with institute
Rotor connection is stated, the bottom of the second piston stretches out second cylinder body and by the torque limiter and the pressure chamber
Connection.
10. the rotatable rock mechanics experiment machine of heavy duty according to claim 2, which is characterized in that the heavy duty is rotatable
Rock mechanics experiment machine further includes follower, and the follower is arranged on the top plate, and the follower is set as
The carrying rotating mechanism, the pressure chamber and the load rotating mechanism can be followed to rotate synchronously during the test.
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CN201811224041.3A CN109580364B (en) | 2018-10-19 | 2018-10-19 | Heavy-load rotatable rock mechanical testing machine |
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CN201811224041.3A CN109580364B (en) | 2018-10-19 | 2018-10-19 | Heavy-load rotatable rock mechanical testing machine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111103200A (en) * | 2019-12-05 | 2020-05-05 | 太原理工大学 | Real-time loading heating leaching test device in CT scanning process |
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CN203993160U (en) * | 2014-08-02 | 2014-12-10 | 成都科华重型轴承有限公司 | For the precision rotating device of jumbo |
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