CN109900543A - The stress induced prominent simulation test device of two-dimensional combination - Google Patents
The stress induced prominent simulation test device of two-dimensional combination Download PDFInfo
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- CN109900543A CN109900543A CN201910282365.0A CN201910282365A CN109900543A CN 109900543 A CN109900543 A CN 109900543A CN 201910282365 A CN201910282365 A CN 201910282365A CN 109900543 A CN109900543 A CN 109900543A
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Abstract
The invention discloses a kind of stress induced prominent simulation test devices of two-dimensional combination, including reaction frame and test piece box, reaction frame can overturn 90 ° around the mounting axis of itself under the driving of decelerating motor, pressure head downward servo hydraulic oil cylinder is installed on upper beam, the servo hydraulic oil cylinder of pressure head to the right is installed on left column, supporting block is separately installed on right column, lower beam, servo hydraulic oil cylinder and supporting block jointly clamp the test piece box in reaction frame；Each pressure head passes through the piston of test piece box equipped with one, for being connected with the pressing plate in test piece box；Test piece box includes cabinet and case lid, gas filling pipeline built in bottom of box lower section, and the homogenous charge into cabinet of the foam metal layer by being laid on the bottom of box.It is able to achieve the load of a variety of stress waves of coal and rock, the test specimen of larger size is facilitated to install, can uniformly and stably be inflated into cabinet, thus more truly simulating two-dimensional coupled static-dynamic loadingi induction coal and gas prominent test.
Description
Technical field
The analog simulation experimental rig more particularly to a kind of two dimension that the present invention relates to a kind of for simulating coal and gas prominent
Combined stress induces prominent simulation test device.
Background technique
Layer during similar model test refers to full-scale test, by scale smaller or waiting than being tested accordingly on model,
It obtains related data and checks design defect.Using test structure similar with prototype made of proper proportion and analog material
Apply ratio load on (or component), makes the structural test for drilling prototype structure real work after model stress again.Subjects are
Copy prototype (practical structures) and according to a certain percentage ruler duplication made of test represent object, it have practical structures whole or
Partial Feature.Experimental study is carried out with model similar with prototype, and the examination that one kind that result of study is applied to prototype is important
Research method is tested, each ambit is widely used in.It is principal advantage is that can control main experimental parameter without by environment
The limitation and influence of condition；Test is compared convenient for changing test parameters；Good economy performance.
With the continuous improvement of pit mining depth and intensity, mine motive force disaster thing relevant to coal and rock unstable failure
Therefore be on the rise, frequency, intensity and the extent of the destruction that bump and coal and gas prominent occur with adopt deep increase, watt
The raising of this pressure has apparent ascendant trend, and quite a few deep-well disaster shows bump, coal and gas and dashes forward
The phenomenon that two kinds of dynamic disasters are existed simultaneously, are intercoupled out, i.e. deep-well composite power disaster.Therefore, complex stress is acted on
Under the prominent genesis mechanism research of coal containing methane gas it is just necessary.
Existing coal and gas prominent simulation experiment method and its corollary apparatus, dynamic load applying mode are to drop hammer and Hope
The gloomy bar two types of gold, impact loading has preferable simulation effect, but cannot achieve adding for a variety of stress waves of coal and rock
It carries, it is difficult to meet a variety of dynamic load conditions and induce the relevant research of coal and gas prominent.
Summary of the invention
The present invention is intended to provide a kind of moulded dimension is larger, coal and gas can be induced prominent with simulating two-dimensional coupled static-dynamic loadingi
Experimental rig out, can coal and rock mechanical characteristic under more preferable simulation complex stress condition.
For this purpose, the technical scheme adopted by the invention is as follows: a kind of stress induced prominent simulation test device of two-dimensional combination, packet
Reaction frame and test piece box are included, the reaction frame is that the closing surrounded by left column, right column, upper beam, lower beam is fixed
Frame structure, is each provided with a support frame at left and right sides of reaction frame, reaction frame can under the driving of decelerating motor around
The mounting axis of itself overturns 90 °, and the downward servo hydraulic oil cylinder of pressure head is equipped on upper beam, is equipped with pressure head on left column
Servo hydraulic oil cylinder to the right, supporting block is separately installed on right column, lower beam, and servo hydraulic oil cylinder and supporting block jointly will
Test piece box in reaction frame clamps；Each pressure head equipped with one pass through test piece box piston, for in test piece box
Pressing plate is connected；
The test piece box includes cabinet and case lid, gas filling pipeline built in below the bottom of box, and by being laid on case
The foam metal layer of body bottom homogenous charge into cabinet is also provided with aspis and sensor wire on the side wall of the cabinet
Hole, the aspis are equipped with pressure relief device outside, are equipped with sensor crossover sub in the sensor wire hole.
It further include console, hydraulic station and monorail motor cucurbit as the preferred of above-mentioned simulation test device；In test piece box
Pressure sensor, temperature sensor, pore pressure sensor are inside installed for the coal petrography stress during measuring protrusion, coal sample
Temperature and gas pressure propagation law and decay characteristics；The console controls servo-controlled machines by computer and realizes
The load and regulation of a variety of stress waves, and collect the data for the sensor installed inside test piece box during record is tested；It is described
Hydraulic station provides power for the hydraulic cylinder on reaction frame；The top that the monorail motor cucurbit is mounted on reaction frame is used for
Lift weight；High-speed camera is installed for realizing the visualization of prominent overall process in the aspis front end, and matches chorus
Emitter is for the acoustic emission phenomenon rule of development in Study on Coal and Gas Outburst.
Further preferably, the decelerating motor is mounted on the support frame on the right side of reaction frame, a left side for reaction frame
It is installed respectively by bearing right two sides；It is welded on same pedestal below two support frames as described above, constitutes U-typed frame.
Further preferably, the servo hydraulic oil cylinder includes hydraulic cylinder, servo-controlled machines, and hydraulic cylinder passes through length
Bolt and aid plate are fixed on reaction frame, are also equipped with displacement sensor and stress sensing on the pressure head of hydraulic cylinder
Device, installation is equipped with a servo hydraulic oil cylinder, two of them on left column there are three servo hydraulic oil cylinder on the upper beam
Servo hydraulic oil cylinder is loaded for dead load, and two servo hydraulic oil cylinders are loaded for dynamic loading, and each servo-controlled machines
It can be matched with any hydraulic cylinder.
Further preferably, the front and rear sides of the reaction frame is equipped with side baffle, with the counter-force during guarantee test
Frame entirety stability, while test piece box is limited along the deformation of two-dimensional stress acting surface normal direction.
Further preferably, the intracorporal upper left corner of the case is provided with reserved space, when cabinet is provided with test specimen, test specimen
Upper left position at be equipped with cushion block, the upper end of the vertical pressing plate, the left end of the horizontal pressure foot of the leftmost side is pressed in pad jointly
On block, prevent from that the clast on test specimen is pressed into reserved space when presser motion.
Further preferably, the side wall of the cabinet, be respectively arranged with hanging ring, the row of being also provided on case lid at the top of case lid
Stomata, and the entrance of gas filling pipeline, gas vent are sealed by plug respectively.It is dedicated by hanging ring hoisting box body and case lid
In the biggish test piece box of moulded dimension.
Further preferably, the gas filling pipeline is by being provided with the intracorporal L shape hole of case and being mounted on foam metal
Layer lower section and the criss-cross grid network management composition communicated with L shape hole, and notch is provided at the top of grid network management.Using complete
New gas filling pipeline structure, by the notched criss-cross grid network management in top, the gas that will be filled with by L shape hole
It after body is evenly dispersed, sends out through notch, then is sent into cabinet through foam metal layer, further ensured equal to the intracorporal test specimen of case
Even stable inflation.
Beneficial effects of the present invention: two kinds of dynamic load applying modes of drop hammer and Hopkinson bar of abandoning tradition, using watching
It takes hydraulic cylinder combination piston, the load loading mechanism that pressing plate is constituted, carries out the load of horizontal load and vertical load, and each
Pressure head both can individually be further applied load, and can also synchronize and be further applied load, and be able to achieve the load of a variety of stress waves of coal and rock；It has
The reaction frame of 90 ° of turn over function facilitates the test specimen of larger size to install；In conjunction with the bottom of box built-in gas filling pipeline and
Foam metal layer can be inflated uniformly and stably into cabinet, so that more truly simulating two-dimensional coupled static-dynamic loadingi induces coal
With gas burst experiment.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the scheme of installation of reaction frame and test piece box.
Fig. 3 is the structural schematic diagram of test piece box.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Fig. 6 is the schematic partial sectional view of grid network management.
Fig. 7 is the structural schematic diagram of sensor crossover sub.
Fig. 8 is the structural schematic diagram of pressure relief device.
Fig. 9 is the structural schematic diagram of the pressure-bearing clamper of pressure relief device.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
In conjunction with shown in Fig. 1-Fig. 6, a kind of stress induced prominent simulation test device of two-dimensional combination, mainly by reaction frame
A, test piece box B, monorail motor cucurbit 20, console 21, hydraulic station 22 form.
Reaction frame A is the closing fixed frame knot surrounded by left column 12, right column 13, upper beam 14, lower beam 15
Structure.A support frame 16 is each provided at left and right sides of reaction frame A, it is preferable that the lower section of two support frames 16 is welded on together
On one pedestal 19, U-typed frame is constituted, to improve whole intensity, and facilitates installation.
Reaction frame A can overturn 90 ° around the mounting axis of itself under the driving of decelerating motor 24, before the test by counter-force
Frame A is rotated by 90 ° to horizontal position, carries out dress sample, in on-test, is rotated again to vertical position, is facilitated test operation.Subtract
Speed motor 24 is mounted on the support frame 16 on the right side of reaction frame A, and the left and right sides of reaction frame A is pacified by bearing respectively
Dress realizes flexibly overturning.
The downward servo hydraulic oil cylinder 17 of pressure head 3 is installed on upper beam 14, pressure head 3 is installed to the right on left column 12
Servo hydraulic oil cylinder 17 is separately installed with supporting block 18, servo hydraulic oil cylinder 17 and supporting block 18 on right column 13, lower beam 15
The test piece box B in reaction frame A is clamped jointly.
Servo hydraulic oil cylinder 17 is mainly made of hydraulic cylinder 17a and servo-controlled machines 17b, and servo-controlled machines 17b is best
It is mounted on the surface of the cylinder body of hydraulic cylinder 17a.Each hydraulic cylinder 17a passes through stay bolt respectively and is fixed on aid plate 23
On reaction frame A.Displacement sensor and strain gauge (not shown) are also equipped on the pressure head 3 of hydraulic cylinder 17a.
Pressure head 3 is controlled by servo hydraulic oil cylinder 17, three kinds of static load, dynamic load, coupled static-dynamic loadingi loading forms can be transmitted.SERVO CONTROL
Machine 17b is connect by data line with console 21, is realized to loading method, size, the accurate control of time
Preferably, installation is equipped with a servo-fluid on left column 12 there are three servo hydraulic oil cylinder 17 on upper beam 14
Compressing cylinder 17, two of them servo hydraulic oil cylinder 17 are loaded for dead load, and two servo hydraulic oil cylinders 17 add for dynamic loading
It carries, and each servo-controlled machines 17b can be matched with any hydraulic cylinder 17a.
Each pressure head 3 passes through the piston 4 of test piece box B equipped with one, for being connected with the pressing plate 5 in test piece box B.For
For same test piece box, the size of pressure head 3 is preferably consistent, is convenient for type selecting.14 corresponding three pressing plates 5 or so of upper beam are successively pacified
It fills and is in close contact, guarantee that vertical direction pressurization is uniform.When one timing of size of test piece box, after the selection of dimension of pressure head 3 determines,
Pressure head quantity in both direction determines that；But pressure head quantity can separately be selected according to the size of required pressure.
Pressure sensor, temperature sensor, pore pressure sensor are installed in test piece box B for measuring prominent process
In coal petrography stress, the temperature of coal sample and the propagation law of gas pressure and decay characteristics.Console 21 passes through computer control
Servo-controlled machines 17b processed realizes the load and regulation of a variety of stress waves, and collects test piece box A inside installation during record test
Sensor data.
Hydraulic cylinder is connect with hydraulic station, and hydraulic station 22 provides power for the hydraulic cylinder 17a on reaction frame A.Due to
The weight of coal sample reaches several tons of weights, and the weight of other component is also larger, and for the convenience of installation, monorail motor cucurbit 20 is installed
The lifting of test piece box is carried out with installment work or for lifting other weights in the top of reaction frame A.High-speed camera installation
The visualization of prominent overall process is realized, and send out with chorus for recording the dynamic process of coal and gas prominent in aspis front end
Injection device is for the acoustic emission phenomenon rule of development in Study on Coal and Gas Outburst.
Side baffle (not shown) is housed in the front and rear sides of reaction frame A, with the counter-force frame during guarantee test
Frame A overall stability, while test piece box B is limited along the deformation of two-dimensional stress acting surface normal direction.
Test piece box B is made of cabinet 1 and case lid 2.Gas filling pipeline 7 built in 1 bottom part down of cabinet, and by being laid on
The foam metal layer 6 of 1 bottom of cabinet homogenous charge into cabinet 1.Aspis 1a and sensor are also provided on the side wall of cabinet 1
Pressure relief device 8 is installed outside wiring hole 1b, aspis 1a, sensor crossover sub 9 is installed in the 1b of sensor wire hole.It is best
It is that pressure relief device 8 is arranged on the right side wall of cabinet 1, forward and backward, right any of cabinet 1 is arranged in sensor crossover sub 9
On side wall, to be staggered with the hydraulic cylinder 17a on left side wall.
The upper left corner in cabinet 1 is provided with reserved space 1c, to ensure that all pressing plates 5 are smoothly mobile.The upper left corner of test specimen
Cushion block 10 is equipped at position, when cabinet 1 is provided with test specimen, the upper end of vertical pressing plate 5, a left side for the horizontal pressure foot 5 of the leftmost side
End is pressed in jointly on cushion block 10, can prevent pressing plate 5 that the clast on test specimen is pressed into reserved space 1c when moving.
The side wall of cabinet 1, the top of case lid 2 are respectively arranged with hanging ring 11, and gas vent 2a, and gas are also provided on case lid 2
Entrance, the gas vent 2a of body filling piping 7 are sealed by plug respectively.After the completion of test, ability after gas vent 2a exhaust is opened
It can be carried out disassembly, to ensure the safety operated.
Gas filling pipeline 7 by the L shape hole 7a that is provided in cabinet 1 and be mounted on 6 lower section of foam metal layer and with " L "
The criss-cross grid network management 7b composition that shape hole 7a is communicated, and notch 7c is provided at the top of grid network management 7b.
Cabinet 1 and case lid 2 are bolted, and interface has sealing ring.The seal cavity that cabinet 1 and case lid 2 surround is used
In the test specimen for being laid with coal and gas prominent simulation test, such as coal dust or analog material.Preferably, the long 100cm of test piece box × wide
40cm × high 40cm.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 7, to obtain the dependency number during the coal and gas prominent under a variety of stress conditions
According to, inbuilt various sensors inside test piece box B, by sensor wire hole 1b on the side wall of cabinet 1 and test piece box outside
Console 21 connects.Constant for the test piece box internal gas pressure during guarantee test, sensor wire hole 1b is preferably sensed
Device crossover sub 9 is blocked, and while blocking guarantee gas pressure, pickup wire is drawn, by sensor and console 21
Connection.Sensor crossover sub 9 is by "T"-shaped rotary table main body 9-1, gasket 9-2, sealing ring 9-3, conducting wire 9-4 and insulator pin pipe
9-5 composition.
The " T " shaped sensor wire hole 1b opened up on "T"-shaped rotary table main body 9-1 and test piece box side wall is matched, "T"-shaped circle
Platform main body 9-1 can be inserted into from inside to outside in " T " shaped sensor wire hole 1b."T"-shaped rotary table main body 9-1 includes small rotary table and big
Rotary table is set with gasket 9-2 and sealing ring 9-3 on small rotary table.After installation, gasket 9-2 and sealing ring 9-3 are by "T"-shaped rotary table master
The step surface of body 9-1 is pressed in "T"-shaped sensor wire hole 1b.
The pore of at least two perforations is offered in the middle part of "T"-shaped rotary table main body 9-1.Pore is preferably four, but unlimited
It in four, is set as needed, all pore rings are circumferentially uniformly distributed around the center of "T"-shaped rotary table main body 9-1.
Eradication edge a fairlead 9-5, insulator pin pipe 9-5 and pore is fitted in each pore to fix using viscose glue and absolutely
The both ends of edge fairlead 9-5 each extend to outside pore.A conducting wire 9-4, conducting wire 9-4 are fitted in every eradication edge fairlead 9-5
It is fixed with insulator pin pipe 9-5 using viscose glue and the both ends of conducting wire 9-4 each extends to outside insulator pin pipe 9-5.Conducting wire 9-4 is best
Using copper wire.
For being connected with the connecting line of the sensor in test piece box, the outboard end of conducting wire 9-4 is used for for the inner end of conducting wire 9-4
It is connected with the console 21 outside test piece box.Preferably, the connecting line of the sensor in the inner end and test piece box of conducting wire 9-4 uses
It is weldingly connected.
By "T"-shaped rotary table main body, gasket, sealing ring jointly carry out the sensor wire hole in test piece box effectively close
Envelope guarantees the air-tightness of test piece box entirety, easy for installation, stable connection；Since the sensor wire hole of test piece box is also step
Shape, during the test, when test piece box internal pressure is greater than ambient pressure, internal pressure applies one to sensor crossover sub
A outside active force, sealing ring incite somebody to action further closely knit test specimen cabinet, the sensor wire hole of "T"-shaped rotary table main body and test piece box
Binding face increase, promote whole bearing capacity, leakproofness enhancing promotes the pressure maintaining performance of test piece box.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 8, Fig. 9, pressure relief device 8 by left support abutment 8-1, right support abutment 8-2, pressure-bearing clamper 8-3,
Bolt and nut component 8-4, sealing ring 8-5, the first rupture disk 8-6, the second rupture disk 8-7, pressure sensor 8-8 composition.Pressure-bearing
Clamper 8-3 locks peace between left support abutment 8-1 and right support abutment 8-2, and through circumferentially uniformly distributed bolt and nut component 8-4
Outside the aspis 1a of test piece box.Pressure-bearing clamper 8-3 uses left, center, right three-stage package assembly, left support abutment 8-1, right support abutment
Every section of middle part of 8-2 and pressure-bearing clamper 8-3 is provided with the air-flow via hole of face aspis 1a.A left side of pressure-bearing clamper 8-3
Clamping is equipped with the first rupture disk 8-6 between section and middle section, and clamping is equipped with the between the middle section of pressure-bearing clamper 8-3 and right section
A pressure sensor 8-8, pressure-bearing are separately installed on the inside of two rupture disk 8-7, the first rupture disk 8-6, the second rupture disk 8-7
Aeration aperture 8-3a is provided on the middle section side wall of clamper 8-3, the air-flow in test piece box can enter through aspis 1a left support abutment 8-1,
Left section of pressure-bearing clamper 8-3, the confined space that surrounds of the first rupture disk 8-6, the gas of aeration aperture 8-3a can enter pressure-bearing folder
The middle section of holder 8-3, right section of pressure-bearing clamper 8-3, the confined space that surrounds of the first rupture disk 8-6, the second rupture disk 8-7.
Pressure-bearing clamper 8-3 further includes at least two pieces of fixinig plate 8-3b, and the left and right ends of every piece of fixinig plate 8-3b lead to respectively
It crosses lock-screw 8-3c to be fixed on left section of pressure-bearing clamper 8-3 and right section of outer wall, quick group for realizing three sections of left, center, right
Dress.Sealing ring 8-5 is installed between left support abutment 8-1 and left section of pressure-bearing clamper 8-3.
Pressure relief device is controllable quick pressure relief device, and during test, booster pump is by filling while test piece box pressurization
Stomata pressurizes into pressure-bearing clamper, and pressure keeps below test piece box pressure, and is lower than the burst pressure of the first, second rupture disk
Power, connect with test piece box pressure suffered by first rupture disk of one end some by pressure balance in pressure-bearing clamper, first
Rupture disk will not destroy；With the second rupture disk of air contact jaw because pressure will not explosion lower than burst pressure；Pressure-bearing clamping
Pressure in device is carried out precise measurement by pressure sensor and is shown；It is quasi- when pressure sensor monitoring to pressure reaches predetermined value
When standby progress coal and gas prominent test, aeration aperture is continued through by booster pump and is pressurizeed to pressure-bearing clamper, until being connect with air
The second rupture disk explosion first of contravention, then due to pressure imbalance in air pressure and pressure-bearing clamper in test piece box, cause coal with
Gas Outburst simulation process.
Its working principle is that: when the pressure in pressure-bearing clamper is greater than burst pressure, the of one end is connect with test piece box
Burst pressure is also not achieved in pressure suffered by one rupture disk, and the first rupture disk will not destroy；With the second explosion of air contact jaw
Piece destroys first, the pressure instantaneous relase in pressure-bearing clamper, and test piece box connects first rupture disk of one end without flat at this time
Weigh pressure, and pressure is far longer than burst pressure, the first rupture disk instant blasting, to realize the artificial of blasting time in test piece box
Control.
The pressure relief device is able to achieve the fast automatic pressure release of aspis, and it is opened slowly to prominent energy to avoid aspis
It influences, simulates realistically coal and gas prominent process；Blasting time artificially controls, can be into not by pressure influence in test piece box
Prominent test under row different pressures can control prominent pressure.
Claims (9)
1. a kind of stress induced prominent simulation test device of two-dimensional combination, including reaction frame (A) and test piece box (B), feature
Be: the reaction frame (A) is the closing surrounded by left column (12), right column (13), upper beam (14), lower beam (15)
Stationary frame structure is each provided with a support frame (16) at left and right sides of reaction frame (A), and reaction frame (A) can slow down
90 ° are overturn around the mounting axis of itself under the driving of motor (24), the downward servo-fluid of pressure head (3) is installed on upper beam (14)
Compressing cylinder (17) is equipped with the servo hydraulic oil cylinder (17) of pressure head (3) to the right, right column (13), lower beam on left column (12)
(15) it is separately installed on supporting block (18), servo hydraulic oil cylinder (17) and supporting block (18) jointly will be in reaction frame (A)
Test piece box (B) clamps；Each pressure head (3) passes through the piston (4) of test piece box (B) equipped with one, for interior with test piece box (B)
Pressing plate (5) be connected；
The test piece box (B) includes cabinet (1) and case lid (2), gas filling pipeline (7) built in cabinet (1) bottom part down, and is led to
It crosses and is laid on the foam metal layer (6) of cabinet (1) bottom to cabinet (1) interior homogenous charge, also opened on the side wall of the cabinet (1)
Equipped with aspis (1a) and sensor wire hole (1b), pressure relief device (8), the sensor are installed outside the aspis (1a)
Sensor crossover sub (9) are installed in wiring hole (1b).
2. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: further include control
Platform (21), hydraulic station (22) and monorail motor cucurbit (20) processed；Pressure sensor, temperature sensing are installed in test piece box (B)
Device, pore pressure sensor are used to measure coal petrography stress, the temperature of coal sample and the propagation rule of gas pressure during protruding
Rule and decay characteristics；The console (21) realizes the load of a variety of stress waves by computer control servo-controlled machines (17b)
And regulation, and collect the data of the internal sensor installed of test piece box (A) during record test；The hydraulic station (22) is anti-
Hydraulic cylinder (17a) on power frame (A) provides power；The monorail motor cucurbit (20) is mounted on the upper of reaction frame (A)
Side is for lifting weight；High-speed camera is installed for realizing the visual of prominent overall process in the front end the aspis (1a)
Change, and cooperates acoustic emission device for the acoustic emission phenomenon rule of development in Study on Coal and Gas Outburst.
3. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the deceleration
Motor (24) is mounted on the support frame (16) on the right side of reaction frame (A), and the left and right sides of reaction frame (A) passes through axis respectively
Hold installation；It is welded on same pedestal (19) below two support frames as described above (16), constitutes U-typed frame.
4. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the servo
Hydraulic cylinder (17) includes hydraulic cylinder (17a), servo-controlled machines (17b), and hydraulic cylinder (17a) passes through stay bolt and aid
Plate (23) is fixed on reaction frame (A), is also equipped with displacement sensor and stress on the pressure head (3) of hydraulic cylinder (17a)
Sensor, installation is equipped with a servo on left column (12) there are three servo hydraulic oil cylinder (17) on the upper beam (14)
Hydraulic cylinder (17), two of them servo hydraulic oil cylinder (17) are loaded for dead load, and two servo hydraulic oil cylinders (17) are used for
Dynamic loading load, and each servo-controlled machines (17b) can be matched with any hydraulic cylinder (17a).
5. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the counter-force
The front and rear sides of frame (A) is limited equipped with side baffle with reaction frame (A) overall stability during guarantee test simultaneously
Deformation of the test piece box (B) along two-dimensional stress acting surface normal direction.
6. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the cabinet
(1) upper left corner in is provided with reserved space (1c), when cabinet (1) is provided with test specimen, is laid at the upper left position of test specimen
Having cushion block (10), the upper end of the vertical pressing plate (5), the left end of the horizontal pressure foot (5) of the leftmost side is pressed in jointly on cushion block (10),
Prevent pressing plate (5) that the clast on test specimen is pressed into reserved space (1c) when moving.
7. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the cabinet
(1) it is respectively arranged with hanging ring (11), is also provided on case lid (2) gas vent (2a), and gas at the top of side wall, case lid (2)
Entrance, the gas vent (2a) of filling piping (7) are sealed by plug respectively.
8. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the gas
Filling piping (7) by the L shape hole (7a) that is provided in cabinet (1) and be mounted below foam metal layer (6) and with L shape hole
Criss-cross grid network management (7b) composition that (7a) is communicated, and notch (7c) is provided at the top of grid network management (7b).
9. the stress induced prominent simulation test device of two-dimensional combination described in accordance with the claim 1, it is characterised in that: the test specimen
Case (B) long 100cm × wide 40cm × high 40cm, cabinet (1) and case lid (2) are bolted, and interface has sealing ring.
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| CN201910282365.0A CN109900543B (en) | 2019-04-09 | 2019-04-09 | Two-dimensional combined stress induction protrusion simulation test device |
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| CN201910282365.0A CN109900543B (en) | 2019-04-09 | 2019-04-09 | Two-dimensional combined stress induction protrusion simulation test device |
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| CN113030429A (en) * | 2021-03-15 | 2021-06-25 | 中国矿业大学 | Multifunctional coal and gas outburst physical simulation device |
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| CN117108593A (en) * | 2023-10-23 | 2023-11-24 | 莱州兴达液压机械科技有限公司 | Hydraulic mechanical locking oil cylinder simulation test device |
| CN117108593B (en) * | 2023-10-23 | 2024-01-05 | 莱州兴达液压机械科技有限公司 | Hydraulic mechanical locking oil cylinder simulation test device |
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