CN110514497A - The rocks sample rotation maintenance sample preparation device and method for making sample of controllable axial compressive force - Google Patents
The rocks sample rotation maintenance sample preparation device and method for making sample of controllable axial compressive force Download PDFInfo
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- CN110514497A CN110514497A CN201910828690.2A CN201910828690A CN110514497A CN 110514497 A CN110514497 A CN 110514497A CN 201910828690 A CN201910828690 A CN 201910828690A CN 110514497 A CN110514497 A CN 110514497A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
Abstract
The invention discloses a kind of rocks samples of controllable axial compressive force to rotate maintenance sample preparation device and method for making sample, constant-temp. and-moisture maintenance is installed in runing rest, one end of constant-temp. and-moisture maintenance and runing rest are rotatablely connected, and the other end of constant-temp. and-moisture maintenance passes through the output axis connection of rotary shaft and rotary engine；Horizontal positioned sampling die is equipped in constant-temp. and-moisture maintenance, the side wall of interior, the close rotary engine of constant-temp. and-moisture maintenance is equipped with pressurizing device, the telescopic head of pressurizing device is connect with platen, rotary shaft, telescopic head, constant-temp. and-moisture maintenance and sampling die coaxial line, the port of sampling die is equipped with backing plate, and position corresponding with sampling die port is equipped with sample outlet respectively for constant-temp. and-moisture maintenance, runing rest.The configuration of the present invention is simple, it is easy to operate, compactness is accurately controlled, bleeding and consistency loss is prevented, can integrally demould, reduce specimen fails, sample is improved and makes precision.
Description
Technical field
The invention belongs to technical field of experiment equipment, are related to a kind of rocks sample rotation maintenance system of controllable axial compressive force
Sampling device and method for making sample can be used for the research of analogy protolith performances of rock.
Background technique
Since rock mass is a kind of extremely complex and anisotropic heterogeneous material, physical and mechanical property variation range is very
Broadness, existing elasticity modulus and the very big solid rock of compression strength, also flexible modulus and compression strength are very small soft
Rock mass, even same class rock mass, due to the having differences property of condition that geology is formed, there is also very big differences for rock mass compression strength
The opposite sex, therefore the true rock mass very wide in order to analog intensity variation range, it is necessary to develop a kind of physico-mechanical properties
Very wide and physical and mechanical property stability contorting the novel rocks scale model material of variation range.It is suitable similar in addition to selecting
Material plays outside critical effect the success of layer during similar model test, and the sample preparation device and method of rocks sample play key
Property effect.Due to using in different material configuration stirring process of vibrating, be difficult to control mixture enter the process of vibrating after mould and
Maintenance processes and the contraction generated, and vibrate and maintenance processes in there are operative liquids and fine particulate materials in gravity
, there is excreting water phenomenon in lower movement, needs to control the maintenance in compactness and later period, needs to design reasonable sample production and supports
Protection unit controls axial compressive force, curing condition and demoulding mode, to meet the requirement of model sample production.
The method that device currently used for making standard class petrophysical model mainly uses tamping in sample making course, is being hammered into shape
Stopping hammering when discovery is without significantly sinking during hitting is torn open immediately after generally waiting models slightly drying and moulding after completing
Mould, compacting uniformity is bad, in modelling and conserves there are apparent excreting water phenomenon in, the generation receipts in maintenance processes
Contracting, the test specimen after forming necessarily deposit certain otherness, will affect the accuracy of similarity material test；It cannot integrally take off
Mould be easy to cause the damage of sample during demoulding, influences the intensity of rocks sample.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of rocks sample rotation maintenance sample preparation dress of controllable axial compressive force
It sets, structure is simple, and it is easy to operate, compactness is accurately controlled, bleeding and consistency loss is prevented, can integrally demould, reduce
Specimen fails improve sample and make precision, are failure mechanism, the crack size effect of analogue investigation varying strength entity rock material
It answers and the measurement of fracture toughness lays the foundation, solve the problems of the prior art.
It is another object of the invention to provide a kind of rocks samples of controllable axial compressive force to rotate maintenance sample preparation device
Method for making sample.
The technical scheme adopted by the invention is that a kind of rocks sample rotation maintenance sample preparation dress of controllable axial compressive force
It sets, including U-shaped runing rest, constant-temp. and-moisture maintenance is installed in runing rest, one end of constant-temp. and-moisture maintenance and rotation
Turn holder pivots connection, the other end of constant-temp. and-moisture maintenance passes through the output axis connection of rotary shaft and rotary engine；Constant temperature
The side wall of interior, the close rotary engine of constant moisture culturing box is equipped with pressurizing device, and sampling die is placed horizontally at constant temperature and humidity and supports
In protecting box, sampling die is connected with sleeve close to one end of pressurizing device, and a port of sleeve is equipped with platen, pressurizing device
Telescopic head is connect with platen；Rotary shaft, telescopic head, constant-temp. and-moisture maintenance and sampling die coaxial line, sampling die it is another
Port is equipped with backing plate, and backing plate is detachably connected with sampling die, constant-temp. and-moisture maintenance respectively, constant-temp. and-moisture maintenance, rotation
Position corresponding with sampling die port is equipped with sample outlet to bracket respectively, and pressurizing device, sleeve, sampling die pass through respectively
Corresponding support is connect with constant-temp. and-moisture maintenance.
Further, the constant-temp. and-moisture maintenance is equipped with the crossbeam of multiple horizontal directions close to one end of runing rest,
All crossbeams are equidistant away from constant-temp. and-moisture maintenance axis, the chassis of constant-temp. and-moisture maintenance pass through crossbeam and with crossbeam energy
Enough opposite slidings, are equipped with the fixation patch that can be filled in or extract, the inner wall of runing rest and crossbeam pair between chassis and crossbeam
The position answered is equipped with the turning groove of annular, and the section of turning groove is arc-shaped, the radian of the circular section of turning groove
It is 240-270 °, the end of crossbeam is equipped with to be embedded at the matched arc-shaped interconnecting piece of turning groove shape, arc-shaped interconnecting piece
Turning groove constitutes kinematic pair.
Further, fixed plate is arranged on the crossbeam, fixed plate being capable of sliding opposite with crossbeam, fixed plate and circular arc
Spring is arranged on crossbeam between shape interconnecting piece, fixed plate and fixed patch are by hook mounting, between fixed plate and chassis
It is connected with stretch cord, the crossbeam between the arc-shaped interconnecting piece of fixed plate is equipped with card slot；When fixed patch fills in chassis and crossbeam
Between when, spring is compressive state, and the distance between fixed plate and card slot are greater than the horizontal length of fixed patch at this time；Work as fixation
Plate is gradually moved at card slot, and stretch cord becomes tensional state from contraction state.
Further, the sampling die is that standard pair opens steel mold, and two die assemblies of sampling die pass through the 4th
Fastener is detachably connected, and one end that sampling die connects sleeve is equipped with occlusion groove, and the end face of sleeve is equipped with and is engaged groove
The occlusion tongue matched, is detachably connected between sampling die and sleeve by the first fastener.
Further, the telescopic head of the pressurizing device is cylinder, and the center of platen is equipped with and flexible head shapes phase
The telescopic head of the circular groove matched, pressurizing device is socketed in circular groove；Atmospheric pressure compensating room, air pressure are equipped with inside pressurizing device
The inner wall at the top of compensated chamber, telescopic head bottom and pressurizing device constitutes storeroom, and storeroom, atmospheric pressure compensating room are closed
Cavity, storeroom is interior to be equipped with pressure sensor I, and pressure sensor I is connect with pressure gauge and controller I respectively, atmospheric pressure compensating room
It is connect between storeroom by pipeline, pipeline is equipped with solenoid valve, and solenoid valve is electrically connected with controller I, and atmospheric pressure compensating room is logical
It crosses admission line to connect with air accumulator, aerating pump and check valve is successively arranged on admission line；Pressure is equipped in atmospheric pressure compensating room
Sensor II, pressure sensor II are electrically connected by controller II with aerating pump；The air pressure preset value of atmospheric pressure compensating room is greater than storage
Hide the air pressure preset value of room.
Further, the rotary engine connects attaching plug by electric wire, between rotary engine and attaching plug
It is connected with for controlling rotary engine unlatching/closing power switch.
Further, the backing plate is detachably connected by the second fastener with sampling die, and backing plate edge is equipped with bolt
Hole, third fastener pass through bolt hole and are detachably connected backing plate and chassis.
Further, the length of the sleeve is 10-15mm, and the diameter of sample outlet is bigger than the diameter of sampling die port
0.1-0.2mm, is placed with permeable stone between the sample and platen in sampling die, and the diameter of permeable stone and platen is than sample preparation mould
Has the small 0.1-0.2mm of internal diameter, permeable stone is with a thickness of 1-2.5mm, platen thickness 10-20mm.
Further, the pressurizing device, sleeve, the equal mounted in pairs of support on sampling die, support are set respectively
In the middle position of sampling die, sleeve.
A kind of method for making sample of the rocks sample rotation maintenance sample preparation device of controllable axial compressive force, using above-mentioned controllable axis
Maintenance sample preparation device is rotated to the rocks sample of pressure, is specifically followed the steps below:
Rocks analog material is compacted to sampling die when filling into sampling die according to test requirements document placement in layers by S1
Port when, installation sleeve continues to fill compacting 5-8mm, in addition permeable stone, is sealed with platen；
Sampling die and sleeve are placed across in constant-temp. and-moisture maintenance by S2, by corresponding support by sampling die,
Sleeve, pressurizing device are fixedly connected with constant-temp. and-moisture maintenance respectively, the telescopic head connection of platen and pressurizing device, according to class rock
Intensity needed for stone sample applies axially loaded power by pressurizing device；
S3 sets the revolving speed 11-100r/min of rotary engine, starts rotary engine, drives constant-temp. and-moisture maintenance, pressurization
Device, sampling die, sleeve at the uniform velocity rotate in the vertical direction together, apply axial compressive force to platen by pressurizing device, thoroughly
Excessive gas and liquid are discharged water stone, so that being in densification state inside sampling die；
S4, the axial compressive force that pressurizing device applies are kept constant, and the revolving speed 1-10r/min of rotary engine are adjusted, so that sample preparation
Mold conserves in constant-temp. and-moisture maintenance, until curing age；
S5 after maintenance, closes rotary engine, unloads pressurizing device, releases the connection of backing plate and sampling die, chassis,
It extracts backing plate out, then axial compressive force is applied to platen by pressurizing device, demoulded by static(al) so that rocks sample goes out from sample
Mouth abjection.
The invention has the advantages that having the advantage that
1, material extra in sleeve is loaded compacting together with the sample in sampling die in sample manufacturing process by the present invention,
The volume contraction that sample is generated because vibrating leakiness and maintenance processes in sampling die can be made up；Sampling die is laterally put simultaneously
It sets, load load, the accurate axial compressive force controlled in sample preparation and maintenance processes is adjusted by pressure gauge, rocks sample is being compacted
It is depressed with the constant shaft for being in stable in sample preparation maintenance processes for a long time, and sampling die is at the uniform velocity rotated in vertical direction；So that system
Original mold tool is in horizontal cross vacant state, and rocks sample is avoided to occur bleeding and consistency damage in conserving cementing forming process
It loses, effectively solves the generation of sample excreting water phenomenon, improve the quality of rocks sample, accurately produce standard class rock sample,
It improves and judges the observation of stress, strain on sample and analyze the Mechanics Phenomenon and stress-strain occurred on protolith
The reliability of variation characteristic.
2, the sample that be able to will conserve by pressurizing device of the present invention is deviate from from sample outlet, realize sample preparation, conserve and
Quick demoulding integration, avoids the damage of sample caused by mechanical demoulding sample making course, improves sample preparation efficiency.
3, apparatus of the present invention structure is simple, is easy to split, and easy to operate, purposes is wide；Pass through control xial feed and rotation
Speed makes different compactnesss and different types of rocks sample, for studying certain protolith in different compactnesss
The different compression strength of formation are influenced the affecting laws of rocks intensity by varying environment in analogy analysis protolith forming process
Strength change laws under factor have the measurement of analogue investigation entity rock material rupture failure characteristic and fracture toughness non-
Often important meaning, to provide the foundation of more reasonable science for the design of geotechnical engineering and the selection of arrangement and method for construction.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of pressurizing device in the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of middle sleeve of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of sampling die in the embodiment of the present invention.
Fig. 5 is the structural schematic diagram that curing instrument is rotated in the embodiment of the present invention.
Fig. 6 is runing rest and the structural schematic diagram at constant-temp. and-moisture maintenance rotation connection in the embodiment of the present invention.
Fig. 7 is the attachment structure schematic diagram in the embodiment of the present invention between runing rest and chassis.
In figure, 1, sampling die；1-1, occlusion groove；1-2, bolt hole；2, pressurizing device；2-1, air accumulator；2-2, pressure
Power table；2-3, telescopic head；2-6, storeroom；2-7, admission line；2-8, atmospheric pressure compensating room；2-9, solenoid valve；3, rotating engine
Machine；4, sleeve；4-1, occlusion tongue；5, runing rest；5-1, turning groove；5-2, sample outlet；6, the first fastener；7, thoroughly
Water stone；8, platen；9, the second fastener；10, attaching plug；11, third fastener；12, rotation speed control button；13,
Four fasteners；14, support；15, power switch；16, rotary shaft；17, constant-temp. and-moisture maintenance；18, backing plate；19, chassis；
19-1, arc-shaped interconnecting piece；19-2, fixed plate；19-3, spring；19-4, stretch cord；19-5, fixed patch, 19-6, card slot.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The rocks sample rotation maintenance sample preparation device of the controllable axial compressive force of the present invention, as shown in Fig. 1,3,4,5, including U
The runing rest 5 of type, constant-temp. and-moisture maintenance 17 are installed in runing rest 5, one end of constant-temp. and-moisture maintenance 17 and rotation
Bracket 5 is rotatablely connected, and the other end of constant-temp. and-moisture maintenance 17 passes through the output axis connection of rotary shaft 16 and rotary engine 3,
Rotary engine 3 is installed on runing rest 5, rotary engine 3 by electric wire connect attaching plug 10, rotary engine 3 with
It is connected between attaching plug 10 for controlling 3 unlatchings of rotary engine/closing power switch 15, is set on rotary engine 3
There is rotation speed control button 12；The side wall of interior, the close rotary engine 3 of constant-temp. and-moisture maintenance 17 is equipped with pressurizing device 2,
The pedestal of pressurizing device 2 is fixedly connected with constant-temp. and-moisture maintenance 17, and the pedestal and constant-temp. and-moisture maintenance 17 of pressurizing device 2 are not
Relative displacement occurs, improves axially loaded stability；Sampling die 1 is placed horizontally in constant-temp. and-moisture maintenance 17, sample preparation mould
Tool 1 is connected with sleeve 4 close to one end of pressurizing device 2, and a port of sleeve 4 is equipped with platen 8, the telescopic head of pressurizing device 2
2-3 is connect with platen 8, and permeable stone 7 is placed between platen 8 and sample；Rotary shaft 16, telescopic head 2-3, constant-temp. and-moisture maintenance
17 are equipped with backing plate 18 with 1 coaxial line of sampling die, the another port of sampling die 1, backing plate 18 respectively with sampling die 1, constant temperature
Constant moisture culturing box 17 is detachably connected, constant-temp. and-moisture maintenance 17, runing rest 5 position corresponding with 1 port of sampling die respectively
It sets and is equipped with sample outlet 5-2, pressurizing device 2, sleeve 4, sampling die 1 pass through corresponding support 14 and constant temperature and humidity respectively
Curing box 17 connects；Constant-temp. and-moisture maintenance 17 is equipped with the door that can be opened/closed, the cabinet of door and constant-temp. and-moisture maintenance 17
It is tightly connected；Constant-temp. and-moisture maintenance 17 is cylinder, the control of the humidity temperature of constant-temp. and-moisture maintenance 17 be this field
Know, be equipped with the through-hole of diameter 1cm inside rotary shaft 16 along axis, the control route in constant-temp. and-moisture maintenance 17 by through-hole into
Enter rotary engine 3, then draws from rotary engine 3 and connect with external control device.
Sampling die 1 is connected with sleeve 4 close to one end of pressurizing device 2, and the open end of sleeve 4 is equipped with platen 8, pressurization dress
It sets 2 telescopic head 2-3 to connect with platen 8, for sealing the sample in sampling die 1, be placed between platen 8 and sample permeable
Stone 7；Rotary shaft 16, telescopic head 2-3, constant-temp. and-moisture maintenance 17 and 1 coaxial line of sampling die, the port of sampling die 1 is equipped with
Backing plate 18, backing plate 18 are detachably connected with sampling die 1, chassis 19 respectively, chassis 19, runing rest 5 respectively with sampling die 1
The corresponding position in port is equipped with sample outlet 5-2, and pressurizing device 2, sleeve 4, sampling die 1 pass through corresponding support respectively
14 connect with constant-temp. and-moisture maintenance 17；14 mounted in pairs of support, support 14 are respectively arranged on sampling die 1, in sleeve 4
Between position for limiting the vertical displacement of pressurizing device 2, sleeve 4, sampling die 1 improve pressurizing device 2, sleeve 4, sample preparation mould
The stability of tool 1；So that sampling die 1 is placed in the position of 17 middle of constant-temp. and-moisture maintenance, perseverance can be sufficiently received
The temperature and humidity that constant temperature and humidity curing box 17 provides avoids occurring portions proximate curing box in previous maintenance processes to conserve
Uneven problem.
Backing plate 18 is detachably connected by the second fastener 9 with sampling die 1, and 18 edge of backing plate is equipped with bolt hole 1-2, the
Three fasteners 11 pass through bolt hole 1-2 and are detachably connected backing plate 18 and chassis 19；18 main function of backing plate is in sample making course
The middle pressure born pressurizing device 2 and pass to sample, and during this sample preparation, the load that pressurizing device 2 applies passes through
Platen 8, permeable stone 7, the sample being compacted pass to backing plate 18, and stress is on a horizontal line, backing plate 18 and constant temperature and humidity maintenance
17 coaxial line of case.
Backing plate 18 is able to bear the axis pressure of sample preparation, avoids deforming with a thickness of 10-20mm, guarantees that sample bottom is flat
Whole, 18 thickness of backing plate is less than the length of third fastener 11；Since the length of sample is 100mm, after backing plate 18 of dismantling, sample preparation mould
Sample outlet end mouth of tool 1 and the distance between sample outlet 5-2 on chassis 19 are less than the 1/3 of the length of sample, in sample from system
During being taken off in original mold tool 1, is not in that sample right end is oblique, the problem of blocking, falling down, does not influence to demould.
The pressure controllable of the application of pressurizing device 2, can use jack, and the telescopic head 2-3 of pressurizing device 2 is cylinder
Shape, the center of platen 8 are equipped with the circular groove to match with telescopic head 2-3 shape, and the telescopic head 2-3 of pressurizing device 2 is socketed in
In circular groove, apply horizontal axis load convenient for pressurizing device 2；Pressurizing device 2 can also be using such as flowering structure, such as Fig. 2 institute
Show, atmospheric pressure compensating room 2-8, top, the bottom telescopic head 2-3 and the pressurizing device of atmospheric pressure compensating room 2-8 are equipped with inside pressurizing device 2
2 inner wall constitutes storeroom 2-6, and storeroom 2-6, atmospheric pressure compensating room 2-8 are closed cavity, is equipped with pressure in storeroom 2-6
Force snesor I, pressure sensor I are connect with pressure gauge 2-2 and controller I respectively, atmospheric pressure compensating room 2-8 and storeroom 2-6 it
Between connected by pipeline, pipeline is equipped with solenoid valve 2-9, and solenoid valve 2-9 is electrically connected with controller I, and atmospheric pressure compensating room 2-8 passes through
Admission line 2-7 is connect with air accumulator 2-1, and aerating pump and check valve are successively arranged on admission line 2-7；Atmospheric pressure compensating room 2-8
Interior to be equipped with pressure sensor II, pressure sensor II is electrically connected by controller II with aerating pump.
The course of work of pressurizing device 2: in sample maintenance processes, sample each component reacts, and volume of sample is reduced,
The telescopic head 2-3 of pressurizing device 2 moves right under the action of air pressure with platen 8 in storeroom 2-6, and storeroom 2-6 volume becomes
Greatly, air pressure becomes smaller therewith, and the real-time pressure in storeroom 2-6 is sent to controller I by pressure sensor I, if storeroom 2-6
Interior pressure is less than preset value, and controller I controls solenoid valve 2-9 and opens, and gas enters storeroom 2-6 in the 2-8 of atmospheric pressure compensating room,
Until the pressure in storeroom 2-6 reaches preset value, controller I controls solenoid valve 2-9 and closes, to maintain 2-3 pairs of telescopic head
Sample applies constant pressure；Real-time pressure in the 2-8 of atmospheric pressure compensating room is sent to controller by pressure sensor II, when air pressure is mended
Room 2-8 air pressure is repaid less than preset value, controller II controls aerating pump and opens, and gas enters atmospheric pressure compensating room 2-8, works as atmospheric pressure compensating
Room 2-8 air pressure is greater than or equal to preset value, and controller II controls aerating pump and closes, and atmospheric pressure compensating room 2-8 maintains air pressure constant；Gas
The air pressure preset value of compensated chamber 2-8 is pressed to be greater than the air pressure preset value of storeroom 2-6；The type of pressure sensor I, pressure sensor II
Number be NPI-19A-CZ031GH, the model P830HME of controller I, controller II；The telescopic head 2-3 of pressurizing device 2 will be pressed
Power passes to permeable stone 7 by platen 8, then on the rocks sample being transmitted in sampling die 1, the final control for realizing compactness
System；The loaded load of pressurizing device 2 is converted uniform area load by platen 8, permeable stone 7, and stepless action is in rocks sample
On, improve the compacting uniformity.
As shown in fig. 6-7, constant-temp. and-moisture maintenance 17 is equipped with the crossbeam of multiple horizontal directions, institute close to the one end on chassis 19
There is crossbeam being equidistant away from 17 axis of constant-temp. and-moisture maintenance, chassis 19 passes through crossbeam, and fixed patch 19-5 fills in chassis 19
It between crossbeam, is slided for limiting chassis 19 along crossbeam, if extracting fixed patch 19-5, chassis 19 can be along crossbeam freedom
Sliding；The inner wall of runing rest 5, position corresponding with crossbeam are equipped with the turning groove 5-1 of annular, the section of turning groove 5-1
To be arc-shaped, the end of crossbeam is equipped with and the matched arc-shaped interconnecting piece 19-1 of turning groove 5-1 shape, constant-temp. and-moisture maintenance
17, crossbeam, arc-shaped interconnecting piece 19-1 are to be fixedly connected, and arc-shaped interconnecting piece 19-1 is embedded at turning groove 5-1 and constitutes fortune
Dynamic pair, is coated with lubricating oil between arc-shaped interconnecting piece 19-1 and turning groove 5-1, guarantees that arc-shaped interconnecting piece 19-1 and rotation are recessed
Slot 5-1 is in close contact, and constant-temp. and-moisture maintenance 17 rotates under smaller resistance in turning groove 5-1；Turning groove 5-1's
The radian of circular section is 240-270 °, prevents arc-shaped interconnecting piece 19-1 from deviating from rotary course；It is arranged on crossbeam
Fixed plate 19-2, fixed plate 19-2 opposite with crossbeam can be slided, the cross between fixed plate 19-2 and arc-shaped interconnecting piece 19-1
Spring 19-3 is arranged on beam, one end of spring 19-3 is fixedly connected with fixed plate 19-2, the other end and crossbeam of spring 19-3
It is fixedly connected, fixed plate 19-2 and fixed patch 19-5 are connected with bullet between fixed plate 19-2 and chassis 19 by hook mounting
Crossbeam between the arc-shaped interconnecting piece 19-1 of power rope 19-4, fixed plate 19-2 is equipped with card slot 19-6；When fixed patch 19-5 plug
When entering between chassis 19 and crossbeam, spring 19-3 is compressive state, applies thrust to the left to chassis 19, at this time fixed plate 19-2
The distance between card slot 19-6 is greater than the horizontal length of fixed patch 19-5；When fixed plate 19-2 is gradually moved to card slot 19-6
Place, stretch cord 19-4 gradually become tensional state from contraction state, final that chassis 19 is pulled to move right.
It is completed when sample conserves, releases the connection of backing plate 18 and chassis 19, fixed plate 19-2 is pulled to the right, spring 19-3
Further compression, extraction fixed patch 19-5, fixed plate 19-2 are in free state, continue to pull fixed plate 19-2 to card to the right
At slot 19-6, stretch cord 19-4 gradually becomes tensional state from contraction state, final that chassis 19 is pulled to move right along crossbeam, solves
Except the connection of backing plate 18 and sampling die 1, convenient for smoothly extraction backing plate 18；After backing plate 18 is extracted out, fixed plate 19-2 is from card slot
19-6 is interior to be taken out, and chassis 19 resets, and fixed patch 19-5 is filled in the gap between chassis 19 and crossbeam, by chassis 19 and perseverance
Constant temperature and humidity curing box 17 is fixed, while the junction of sealed chassis 19 and crossbeam, and spring 19-3 is compressive state at this time, gives chassis
19 horizontal support forces to the left, for offsetting the axial horizontal pressure force of sample making course, knockout course.
Sampling die 1, which is that the standard of 50 × h100mm of Ф is double, opens steel mold, and two die assemblies of sampling die 1 pass through the
Four fasteners 13 are detachably connected, and the length of sleeve 4 is 10-15mm, and it is recessed that one end that sampling die 1 connects sleeve 4 is equipped with occlusion
Slot 1-1, the end face of sleeve 4 are equipped with the occlusion tongue 4-1 matched with occlusion groove 1-1, tight for sampling die 1 and sleeve 4
Close clamping avoids vibrating and axis pressure is added spillage problem occur；It is removable by the first fastener 6 between sampling die 1 and sleeve 4
Unload connection；Sleeve 4 can increase the height of sampling die 1, compaction moulding be loaded convenient for loading sample once when test, because of similar material
Expect that the sample configured volume in compacting process largely reduces.
The diameter of sample outlet 5-2 is 0.1-0.2mm bigger than the diameter of 1 port of sampling die, deviates from convenient for sample；Permeable stone
7 and platen 8 diameter it is 0.1-0.2mm smaller than 1 internal diameter of sampling die, platen 8, cannot be too thick with a thickness of 20mm, on the one hand keeps away
Exempt from the space of occupancy sleeve 4, on the other hand convenient for taking-up；Platen 8 cannot be too thin, needs enough rigidity, it is sufficient to bear pressurization
The load of device 2 realizes a compression moulding；Permeable stone 7, cannot be too thick with a thickness of 1-2.5mm, avoids the sky for occupying sleeve 4
Between.
The method for making sample of the rocks sample rotation maintenance sample preparation device of the controllable axial compressive force of the present invention, specifically according to following
Step carries out:
Rocks analog material is compacted to sampling die when filling into sampling die 1 according to test requirements document placement in layers by S1
When 1 port, installation sleeve 4 continues to fill compacting 5-8mm, in addition permeable stone 7, is sealed with platen 8.
Sampling die 1 and sleeve 4 are placed across in constant-temp. and-moisture maintenance 17, pass through corresponding support 14 by S2
Sampling die 1, sleeve 4, pressurizing device 2 are fixedly connected with constant-temp. and-moisture maintenance 17 respectively, added before load by operation
Pressure device 2 adjusts the telescopic head 2-3(steel core of pressurizing device 2) elongation, telescopic head 2-3 is inserted in the groove at the center of platen 8
In, it realizes and tentatively fixes, further according to intensity needed for rocks sample, axially loaded power is applied by pressurizing device 2.
S3 sets the revolving speed 11-100r/min of rotary engine 3, starting rotation hair by rotation speed control button 12
Motivation 3 drives constant-temp. and-moisture maintenance 17, pressurizing device 2, sampling die 1, sleeve 4 to do at the uniform velocity up time in vertical direction together
Needle (or counterclockwise) rotation, axial compressive force is applied to platen 8 by pressurizing device 2, permeable stone 7 arranges excessive gas and liquid
Out, so that being in densification state inside sampling die 1, platen 8 is only by the evenly load of horizontal direction in whole process, finally
Obtained specimen surface is smooth.
S4, the axial compressive force that pressurizing device 2 applies keep constant, so that sample is in constant densification state always, avoid
In general sample making course, sample load lay down after rebound；Rotating engine is adjusted by rotation speed control button 12 simultaneously
The revolving speed 1-10r/min of machine 3, so that sampling die 1 conserves in constant-temp. and-moisture maintenance 17, until curing age, constant shaft
To pressure and rotation maintenance collective effect, it effectively prevent the generation of excreting water phenomenon；It, can according to the difference of the rock-like materials of research
By the rotational speed regulation of rotary engine 3, for controlling revolving speed in maintenance processes, the rotational speed regulation precision of rotary engine 3 is
1r/min is difficult to be adjusted to suitable revolving speed to solve the problems, such as bleeding if precision is too small；Precision is higher, and inevitable equipment price is more high
It is expensive.
S5 after maintenance, closes rotary engine 3, unloads pressurizing device 2, releases backing plate 18 and sampling die 1, bottom
The connection of disk 19 extracts backing plate 18 out, then applies axial compressive force to platen 8 by pressurizing device 2, is demoulded by static(al) so that class rock
Stone sample is deviate from from sample outlet 5-2.
It is tough if necessary to the failure mechanism of analogue investigation varying strength entity rock material, crack size effect and fracture
Degree need to only re-assembly sampling die 1, sleeve 4, readjust the type of rock type analog material or the pressure of rocks sample
Solidity repeats the above steps.
The working principle of the embodiment of the present invention:
It is since the opposite floating of moisture, coarse aggregate sink relatively, if only applying axis pressure in sample preparation that sample, which excreting water phenomenon occurs mostly,
Power can be improved the compactness of sample, but play squeezing action to moisture in sample, be easier to bleeding problem occur, reduce sample
Quality；The present invention applies uniform axis pressure in sample preparation and maintenance processes, while sampling die 1 is horizontally arranged and vertical
It is rotated on direction, moisture in sample in rotary course, the interaction of storeroom in gravity, centrifugal force and sample such as gather materials
Deng under the influence of, opposite fore-and-aft distance is constant in the heart with lateral shaft for the distribution and material of sample internal material, keeps dynamic
Balance, largely prevents excreting water phenomenon；Stable axis pressure improves the compactness of sample, slows down coarse aggregate and moisture exists
Inhomogeneities under gravity controls excreting water phenomenon to a certain extent, while centrifugal action makes when being also avoided that rotation
Sample generates the phenomenon that central cavity；The present invention rotates curing instrument and can be avoided to be existed in the production of rock-like materials sample and maintenance
Defect, with the completion of curing period, excreting water phenomenon finally obtains solution, avoid sampling die 1 vertically place and in level
It is rotated on direction only and can ensure that same level height material is uniformly distributed and sample top and the bottom material still occur and are unevenly distributed
Even phenomenon.
During compacting, mold be it is horizontal positioned, sample, can largely sink under the influence of self gravity in mold bottom
Product, and upper part sample weight applies a load to lower aliquot, causes sample to be compacted up and down uneven, according to what is matched
Quality of materials is set the revolving speed 11-100r/min of rotary engine 3 by rotation speed control button 12, passes through larger revolving speed
To overcome the problems, such as the compacting unevenness of sample self weight generation in sample making course；And in maintenance processes, sample preparation is intact, it is only necessary to
Overcome the problems, such as that moisture is non-uniform in maintenance processes, the revolving speed 1- of rotary engine 3 is adjusted by rotation speed control button 12
10r/min, lesser revolving speed can overcome gravity to influence water in sample, guarantee that the moisture distribution in sample is in uniform shape
State is unlikely to secrete out.
The compactness 90% that the compactness of sample obtained by the present invention can be higher than traditional sample preparation device up to 96% or more.Due to having
Effect solves excreting water phenomenon, and the practical moisture content of sample can reach 99% or more of theoretical moisture content, avoid because of sample making course
The variation of middle moisture content and vary widely the various properties of sample, and the present invention gained sample different parts density become
Change difference within 2%, far below traditional sample preparation device 10%, uniformity is effectively promoted.Simultaneously in identical ingredient,
The intensity contrast tradition sample preparation device of gained sample of the invention improves 5 ~ 15%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force, which is characterized in that including U-shaped rotation branch
Frame (5), constant-temp. and-moisture maintenance (17) are installed in runing rest (5), one end of constant-temp. and-moisture maintenance (17) and rotation branch
Frame (5) rotation connection, the other end of constant-temp. and-moisture maintenance (17) pass through the output shaft of rotary shaft (16) and rotary engine (3)
Connection；Side wall in constant-temp. and-moisture maintenance (17), close to rotary engine (3) is equipped with pressurizing device (2), sampling die
(1) it is placed horizontally in constant-temp. and-moisture maintenance (17), sampling die (1) is connected with sleeve close to the one end of pressurizing device (2)
(4), a port of sleeve (4) is equipped with platen (8), and the telescopic head (2-3) of pressurizing device (2) is connect with platen (8)；Rotary shaft
(16), telescopic head (2-3), constant-temp. and-moisture maintenance (17) and sampling die (1) coaxial line, the another port of sampling die (1)
Equipped with backing plate (18), backing plate (18) is detachably connected with sampling die (1), constant-temp. and-moisture maintenance (17) respectively, constant temperature and humidity
Position corresponding with sampling die (1) port is equipped with sample outlet (5-2) respectively for curing box (17), runing rest (5), pressurization
Device (2), sleeve (4), sampling die (1) are connect by corresponding support (14) with constant-temp. and-moisture maintenance (17) respectively.
2. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the constant-temp. and-moisture maintenance (17) is equipped with the crossbeam of multiple horizontal directions, all cross close to the one end of runing rest (5)
Beam is equidistant away from constant-temp. and-moisture maintenance (17) axis, the chassis (19) of constant-temp. and-moisture maintenance (17) pass through crossbeam and with
Crossbeam opposite can slide, and the fixation patch (19-5) that can be filled in or extract, rotation branch are equipped between chassis (19) and crossbeam
The inner wall of frame (5), position corresponding with crossbeam are equipped with the turning groove (5-1) of annular, and the section of turning groove (5-1) is circular arc
Shape, the radian of the circular section of turning groove (5-1) are 240-270 °, and the end of crossbeam is equipped with and turning groove (5-1) shape
The matched arc-shaped interconnecting piece (19-1) of shape, arc-shaped interconnecting piece (19-1) are embedded at turning groove (5-1) and constitute kinematic pair.
3. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 2, feature
It is, is arranged on the crossbeam fixed plate (19-2), fixed plate (19-2) opposite with crossbeam can be slided, fixed plate (19-2)
It is arranged on crossbeam between arc-shaped interconnecting piece (19-1) spring (19-3), fixed plate (19-2) and fixed patch (19-5)
It is mounted, is connected between fixed plate (19-2) and chassis (19) stretch cord (19-4), fixed plate (19-2) and circular arc by hook
Crossbeam between shape interconnecting piece (19-1) is equipped with card slot (19-6)；When fixed patch (19-5) fill in chassis (19) and crossbeam it
Between when, spring (19-3) be compressive state, at this time the distance between fixed plate (19-2) and card slot (19-6) be greater than fixation patch
The horizontal length of (19-5)；When fixed plate (19-2) is gradually moved at card slot (19-6), stretch cord (19-4) is from contraction state
Become tensional state.
4. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the sampling die (1), which is that standard is double, opens steel mold, and two die assemblies of sampling die (1) pass through the 4th fastener
(13) it is detachably connected, one end that sampling die (1) connects sleeve (4) is equipped with occlusion groove (1-1), and the end face of sleeve (4) is set
There is the occlusion tongue (4-1) matched with occlusion groove (1-1), passes through the first fastener between sampling die (1) and sleeve (4)
(6) it is detachably connected.
5. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the telescopic head (2-3) of the pressurizing device (2) is cylinder, and the center of platen (8) is equipped with and telescopic head (2-3) shape
The telescopic head (2-3) of the circular groove to match, pressurizing device (2) is socketed in circular groove；It is equipped with inside pressurizing device (2)
Atmospheric pressure compensating room (2-8), top, the telescopic head bottom (2-3) and the inner wall of pressurizing device (2) of atmospheric pressure compensating room (2-8) are constituted
Storeroom (2-6), storeroom (2-6), atmospheric pressure compensating room (2-8) are closed cavity, are equipped with pressure in storeroom (2-6) and pass
Sensor I, pressure sensor I are connect with pressure gauge (2-2) and controller I respectively, atmospheric pressure compensating room (2-8) and storeroom (2-6)
Between connected by pipeline, pipeline is equipped with solenoid valve (2-9), and solenoid valve (2-9) is electrically connected with controller I, atmospheric pressure compensating room
(2-8) connect by admission line (2-7) with air accumulator (2-1), be successively arranged on admission line (2-7) aerating pump with unidirectionally
Valve；Pressure sensor II is equipped in atmospheric pressure compensating room (2-8), pressure sensor II is electrically connected by controller II with aerating pump；
The air pressure preset value of atmospheric pressure compensating room (2-8) is greater than the air pressure preset value of storeroom (2-6).
6. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
Be, the rotary engine (3) connects attaching plug (10) by electric wire, rotary engine (3) and attaching plug (10) it
Between be connected with power switch (15) for controlling rotary engine (3) unlatching/closing.
7. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the backing plate (18) is detachably connected by the second fastener (9) with sampling die (1), and backing plate (18) edge is equipped with spiral shell
Keyhole (1-2), third fastener (11) pass through bolt hole (1-2) and are detachably connected backing plate (18) and chassis (19).
8. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the length of the sleeve (4) is 10-15mm, and the diameter of sample outlet (5-2) is bigger than the diameter of sampling die (1) port
0.1-0.2mm is placed with permeable stone (7) between the sample and platen (8) in sampling die (1), permeable stone (7) and platen (8)
Diameter it is 0.1-0.2mm smaller than sampling die (1) internal diameter, permeable stone (7) is with a thickness of 1-2.5mm, and platen (8) is with a thickness of 10-
20mm。
9. a kind of rocks sample rotation maintenance sample preparation device of controllable axial compressive force according to claim 1, feature
It is, the pressurizing device (2), sleeve (4), support (14) equal mounted in pairs on sampling die (1), support (14) point
Not She Yu sampling die (1), sleeve (4) middle position.
10. a kind of method for making sample of the rocks sample rotation maintenance sample preparation device of controllable axial compressive force, which is characterized in that use
Such as a kind of described in any item rocks sample rotation maintenance sample preparation devices of controllable axial compressive force of claim 1-9, specifically press
It is carried out according to following steps:
S1 is compacted to sample preparation mould when filling by rocks analog material according in test requirements document placement in layers to sampling die (1)
When having the port of (1), installation sleeve (4) continues to fill compacting 5-8mm, in addition permeable stone (7), is sealed with platen (8)；
Sampling die (1) and sleeve (4) is placed across in constant-temp. and-moisture maintenance (17), passes through corresponding support by S2
(14) sampling die (1), sleeve (4), pressurizing device (2) are fixedly connected with constant-temp. and-moisture maintenance (17) respectively, platen (8)
It connect with the telescopic head (2-3) of pressurizing device (2), according to intensity needed for rocks sample, is applied by pressurizing device (2) axial
Loading force；
S3 sets the revolving speed 11-100r/min of rotary engine (3), starts rotary engine (3), drives constant temperature and humidity maintenance
Case (17), pressurizing device (2), sampling die (1), sleeve (4) at the uniform velocity rotate in the vertical direction together, pass through pressurizing device
(2) apply axial compressive force to platen (8), excessive gas and liquid are discharged permeable stone (7), so that at sampling die (1) is internal
In densification state；
S4, the axial compressive force that pressurizing device (2) applies are kept constant, and are adjusted the revolving speed 1-10r/min of rotary engine (3), are made
Sampling die (1) maintenance in constant-temp. and-moisture maintenance (17) is obtained, until curing age；
S5 after maintenance, closes rotary engine (3), unloads pressurizing device (2), releases backing plate (18) and sampling die
(1), the connection of chassis (19) is extracted out backing plate (18), then applies axial compressive force to platen (8) by pressurizing device (2), by quiet
Power demoulds so that rocks sample is deviate from from sample outlet (5-2).
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