CN206756595U - The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength - Google Patents
The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength Download PDFInfo
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- CN206756595U CN206756595U CN201720043170.7U CN201720043170U CN206756595U CN 206756595 U CN206756595 U CN 206756595U CN 201720043170 U CN201720043170 U CN 201720043170U CN 206756595 U CN206756595 U CN 206756595U
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Abstract
A kind of multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength, including framework, load load maintainer and load guiding and supporting mechanism, the load load maintainer is distributed in the both sides of framework, one of load load maintainer has from lock set, the motion end of two load load maintainers is oppositely arranged and is the loading station for sample placement between each other, the lower section of the load load maintainer is provided with load guiding and supporting mechanism, the load is oriented to and supporting mechanism includes guide groove, mobile pulley and the supporting table for supporting load load maintainer, the guide groove is located in framework, the guide groove is built with mobile pulley, the both ends of the supporting table are installed by the mobile pulley, the moving direction of the mobile pulley is parallel with the direction of action of the load load maintainer.Loading frame is arranged to horizontal structural frame, to realize the sample load test of large span by the utility model by the structure design of Adjustment Tests machine frame.
Description
Technical field
The utility model belongs to field of engineering technology, is related to a kind of multiple dimensioned testing machine of rock uniaxiality strength and laterally adds
Carry and put and test method, be adapted to various sizes of compressive strength of rock test.
Background technology
The mechanical properties such as the compression strength using uniaxial tension testing machine test rock are the conventional experiment sides such as engineering circles
Method.From the point of view of data check, the testing equipment of compressive strength of rock is conventional mechanics equipment.But the examination of correlation both at home and abroad at present
It is less and size is smaller to test the dimensions of machine test rock sample, can only often test single size or test two to three kinds of
Size.The main limitation of equipment is shown as：(1) with the increase of specimen cross section size, the pressurization load of instrument can be by area
Ratio increase (i.e. by one-dimensional dimension scale square increase), according to the result investigated in the market, pass through servo-hydraulic
The load of controlled loading is typically up to 10000KN or so, by taking square 100mm*100mm*100mm rock sample as an example,
If its compression strength is 100MPa, the pressure value of Normal stress is up to 1000KN；Do not considering compression strength dimensional effect
In the case of, 400mm*400mm*400mm rock sample, its one-dimensional dimension scale is 100mm*100mm*100mm rock
4 times of sample, under the influence of the factors such as compression strength dimensional effect are not considered, the pressure value of its then Normal stress is up to
16000KN, conventional payload values can not meet the sample of the size.(2) discrete trial machine is only by adjusting sample (sample shape
Shape is mostly prism or cylinder) length carry out dimensional effect experiment, that is, testing the sectional dimension of pressurization, constant (section is
It is square or circular), and specimen length scales up.This method is because the specimen cross section area of loading is constant, therefore lotus of pressurizeing
Load will not be scaled up with dimensions length, and bigger experiment size is realized by this method, overcomes at above-mentioned first point
Problem, but the vertical frame size of testing machine structure can be caused often larger, conventional lab space can not realize the pendulum of equipment
Put.In addition, the vertical hydraulic cylinder of the experiment of large span is hanging, without lateral supports such as guided ways, test specimen unstability easily occurs, pair plus
The components such as the hydraulic cylinder of load damage.Experiment in the market is based on vertical load.Testing machine loads length also with small
Based on sized samples.
It can be seen that due to the size for the loading force that is put to the test, and the limitation of a variety of conditions such as test space, Rock Under Uniaxial Compression resistance to compression
The multiple dimensioned testing machine of intensity yet there are no breakthrough in the experiment for meeting large scale sample.
The content of the invention
In order to overcome existing rock uniaxiality strength to carry out multiple dimensioned experiment, it can not particularly carry out large scale
The deficiency of the compression test of sample, the utility model provide a kind of multiple dimensioned testing machine of rock uniaxiality strength and laterally loaded
Device, by Adjustment Tests machine frame structure, loading frame is arranged to horizontal structural frame, to realize the sample of large span
Load test.
Technical scheme is used by the utility model solves its technical problem：
A kind of multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength, the horizontal loading device include frame
Frame, load load maintainer and load are oriented to and supporting mechanism, the load load maintainer are distributed in the both sides of framework, one of them
Load load maintainer has from lock set, and the motion end of two load load maintainers is oppositely arranged and is to be put for sample between each other
The loading station put, the lower section of the load load maintainer are provided with the load and are oriented to and supporting mechanism, the load be oriented to and
Supporting mechanism includes guide groove, mobile pulley and the supporting table for supporting load load maintainer, the guide groove and is located at framework
Interior, the guide groove installs the mobile pulley, the shifting of the mobile pulley built with mobile pulley, the both ends of the supporting table
Dynamic direction is parallel with the direction of action of the load load maintainer.
Further, the load load maintainer includes telescopic ram, experiment force snesor and load plate, described telescopic
Oil cylinder is arranged on framework, and the motion end of the telescopic ram is connected with testing one end of force snesor, and the test force passes
The other end of sensor is connected with load plate.
Preferably, the telescopic ram of side is load cylinder, and the telescopic ram of opposite side is support cylinder, the branch
Oil cylinder is supportted to carry mechanically from lock set.
Further, the horizontal loading device also includes height of specimen adjusting means, the height of specimen adjusting means
Including bottom adjusting means, the bottom adjusting means is connected with moving guide rail groove.
The bottom adjusting means is screw mechanism.
Further, the height of specimen adjusting means includes top adjusting means, and the upper adjusting means is arranged on institute
The upper end of lower adjusting means is stated, the upper adjusting means includes internal thread and internal thread button, and the internal thread is liftably installed
In interior thread.
The horizontal loading device also includes spliced lightweight safety glass, and the spliced lightweight safety glass includes side
To safety glass and top cover safety glass.
The lateral safety glass can be arranged on framework both sides up or down, and the top cover safety glass can be inside and outside mobile
Ground, which is arranged on, pardons top both sides, and the lateral safety glass and top cover safety glass surround closing processing space.
The beneficial effects of the utility model are mainly manifested in：
(1) load maintainer that testing machine is realized by horizontal loading device turns from longitudinal direction to the spatial extent of transverse direction
Change, overcome dimensional effect testing machine because specimen length is excessive, cause the longitudinal framing height of testing machine too high, influence interior
Space place.
(2) load guiding and supporting mechanism are provided with horizontal loading device, overcomes longitudinal loading tester to adapt to
The experiment of different sized samples, because oil cylinder or sample stretching are long, the easily loading mistake caused by sample destroys moment easily
Steady phenomenon.Show as：Oil cylinder external part is placed on supporting mechanism, in order to avoid oil cylinder elongation is excessive, downward moment of flexure is produced, to oil cylinder
Play a protective role；Supporting mechanism is slid axially along guide groove, and oil cylinder can be axially guided, and preferably protection is due to pressure
Influence of the moment of flexure to oil cylinder caused by producing side friction.Supporting mechanism can slide in guide groove, can be achieved to different length
Oil cylinder be supported.
(3) base support means are provided with two section arrangement for adjusting height, and bottom adjusting means is moved in guide groove, can met
The support and positioning of different length sample.For top adjusting means after to sample precompressed, top adjusting means is fine-tuning, ensure that
Sample is only by uniaxial compression, but bottom adjusting means keeps the former height stretched out, and sample can be played a protective role.
(4) side of equipment two and top are equipped with plastic-steel glass protecting cover, and both sides frontier defense shield is immovable, and top is can
Movable type, ensure sample when destroying, chip will not be launched to outside.
(5) adjusting means can be changed mutually, available for square coupons, or circular specimen.
(6) by adjusting bearing plate, the different experiment switching of diameter can be achieved.
Brief description of the drawings
Fig. 1 is small sample mounting structure floor map.
Fig. 2 is small sample mounting structure elevational schematic view.
Fig. 3 is bulk specimen mounting structure floor map.
Fig. 4 is bulk specimen mounting structure elevational schematic view.
Wherein, 1, framework；2nd, load guiding and supporting mechanism；3rd, lateral safety glass；4th, load load maintainer；5th, top cover
Safety glass；6th, sample；7th, test specimen two-stage arrangement for adjusting height.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
1~Fig. 4 of reference picture, a kind of multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength, including framework 1,
Load load maintainer 4, load is oriented to and supporting mechanism 2, test specimen two-stage arrangement for adjusting height 7 and spliced safety glass etc..
Load load maintainer 4 is by being distributed in the telescopic rams of framework both sides, servomotor, experiment force snesor, loading
Plate etc. forms, and it (is schematic diagram in figure, the lengths of frame and length of oil cylinder of the testing machine can be according to test samples that often covering, which has two groups,
The needs of length are manufactured, and the experiment maximum length and the ratio of minimum length illustrated in figure are 10 times).The oil cylinder one of both sides
Individual is load cylinder, and another is support cylinder, and two oil cylinders can be axially retractable, and wherein support cylinder has self-locking work(
Energy.According to the experiment of various sample length, support cylinder is stretched out in advance, support cylinder is fixed by mechanical self-locking, then
Sample is disposed, then is loaded by the stretching of load cylinder.
Load guiding and supporting mechanism 2 are equipped with two side cylinders, by guide groove, mobile pulley and oil cylinder supporting table group
Into.Guide groove is located in framework and (is carved with scale in upside), and guide groove is moved, the mechanism built with mobile pulley by pulley
It will together be stretched with oil cylinder, and for supporting the weight of two top oil cylinders, play protection oil cylinder after stretching is long, reduce it
Influence of the moment of flexure of conducting oneself with dignity to oil cylinder.
Sample 6 is placed in the center of whole framework 1, and sample is arranged right below three group of two section arrangement for adjusting height, every group of tune
Regulating device can move in moving guide rail groove, according to the group number of the length choosing and regulating mechanism of sample.The adjusting means is divided into
Two-stage, including top adjusting means and bottom adjusting means, bottom adjusting means are connected with moving guide rail groove, bottom adjusting means
Height can be adjusted by inboard leadscrews.Top adjusting means is highly 0-10mm, and it is embedded in the adjusting means of bottom, if
There is internal thread, upper-lower height is adjusted by internal thread button.Before sample placement, two adjusting meanss extend out to peak, sample
It is placed in the adjusting means of top, after certain precompression is applied to sample, by top adjusting means retraction certain length, under
Portion's adjusting means then keeps the former height stretched out, to be played a protective role to sample.
Spliced lightweight safety glass, it is made up of altogether four blocks of safety glass, two pieces are lateral safety glass 3, are arranged on outer
Framework both sides, it can be moved up and down in side；Two pieces are top cover safety glass 5, are arranged on both sides at the top of outer framework, can be in Shang Ding
Removed in the side of lid two.Before load loading, four blocks of glass are all removed, fastened by middle padlock.
The loading procedure of the present embodiment is as follows：
Before experiment, safety glass is opened first, load cylinder is retracted.According to the length of sample, first Shift cylinder branch
Platform is supportted, according to the scale in guide groove, the position of fixed Liang Zu mechanisms, then stretches out support cylinder to fixed position (root
According to the sample of different length, the length of oil cylinder of stretching is controlled), pass through mechanical self-locking and fix support cylinder.
Then according to the length of sample, select two section arrangement for adjusting height group number (when carrying out minimum specimen test, can
Only stretch out one group of adjusting means；During moderate-length specimen test, extended two groups of adjusting meanss；When most Enough long sample is tested, it can stretch
Go out three groups of adjusting meanss).Top adjusting means in adjusting means and bottom adjusting means are extend out to peak, Ran Hou
Top adjusting means top disposes sample.
Then by load cylinder, precompressed (it is relatively low now to load load) is carried out to sample, when rubbing for load plate and sample
When wiping power is more than the deadweight of sample, pass through the elongation of thread retraction top adjusting means, bottom adjusting means is still kept
Former elongation is constant.This method ensure that sample is only by uniaxial compression, further, since the length of top adjusting means is shorter, under
Portion's adjusting means can protect sample overall due to loading shakiness will not fall.
Now, four blocks of lightweight safety glass are all removed, and fastened by middle padlock, be in whole test space
The state of relative closure.The compressive strength test of sample is then begun to, load cylinder is pressurizeed, until sample is completely broken
It is bad, obtain related mechanics parameter.
This example is with corresponding maximum sample (1000mm*100mm*100mm) in illustrating and minimum sample (100mm*
Test method is further described exemplified by experiment 100mm*100mm).
The compressive strength test method of minimum sample is：Before experiment, two groups of safety glass are all opened, retraction oiling cylinder.
Due to being minimum specimen test, two group oil cylinder support platforms need to be moved to most centre position.According to the scale in guide groove
The extension elongation of support cylinder is determined, after stretching out support cylinder, support cylinder is fixed by mechanical self-locking.Then among selection
Two section arrangement for adjusting height (see diagram 2), the top adjusting means in adjusting means and bottom adjusting means are extend out to
Peak, then dispose minimum sample on top adjusting means top.Now, start-up loading oil cylinder, start to carry out in advance sample
Press (1KN, 2KN, 3KN ...), when load plate and the frictional force of sample are more than the deadweight of sample, (sample passes through two side cylinders
To the active force of sample so that sample does not fall), then adjusted by the elongation of thread retraction top adjusting means, bottom
Regulating device still keeps former elongation constant.Now, four blocks of lightweight safety glass are all removed, and passes through middle padlock button
Tightly, whole test space is made to be in the state of relative closure.Then, continue start-up loading oil cylinder, start to carry out single shaft to sample
Compression test, until sample destroys completely, obtain related mechanics parameter.
The compressive strength test method of maximum sample is：Before experiment, two groups of safety glass are all opened, retraction oiling cylinder.
Due to being maximum specimen test, two group oil cylinder support platforms can not remove, and be respectively disposed on both sides.According to the scale in guide groove
The extension elongation of support cylinder is determined, after stretching out support cylinder, support cylinder is fixed by mechanical self-locking.Then three groups are moved
Two section arrangement for adjusting height (see diagram 4), one group most middle, another two groups are distributed in both sides.By in three groups of adjusting means
Top adjusting means and bottom adjusting means extend out to peak, and maximum examination is then disposed on three groups of top adjusting means top
Sample.Now, start-up loading oil cylinder, start to carry out precompressed (1KN, 2KN, 3KN ...) to sample, when the friction of load plate and sample
When power is more than the deadweight of sample (active force of the sample by two side cylinders to sample so that sample does not fall), then pass through
The elongation of the top adjusting means of three groups of thread retraction, bottom adjusting means still keep former elongation constant.Now, will
Four blocks of lightweight safety glass all remove, and are fastened by middle padlock, whole test space is in the state of relative closure.
Then, continue start-up loading oil cylinder, start to carry out uniaxial compression test to sample, until sample destroys completely, obtain forces associated
Learn parameter.
Claims (8)
- A kind of 1. multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength, it is characterised in that：The laterally loading dress Put and be distributed in the both sides of framework including framework, load load maintainer and load guiding and supporting mechanism, the load load maintainer, One of load load maintainer, which has, to be oppositely arranged from lock set, the motion end of two load load maintainers and is between each other The loading station placed for sample, the lower section of the load load maintainer are provided with load guiding and supporting mechanism, the load Lotus is oriented to and supporting mechanism includes guide groove, mobile pulley and the supporting table for supporting load load maintainer, the guide groove It is located in framework, the guide groove installs the mobile pulley, the movement built with mobile pulley, the both ends of the supporting table The moving direction of pulley is parallel with the direction of action of the load load maintainer.
- 2. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as claimed in claim 1, it is characterised in that：Institute Stating load load maintainer includes telescopic ram, experiment force snesor and load plate, and the telescopic ram is arranged on framework, The motion end of the telescopic ram is connected with testing one end of force snesor, the other end of the experiment force snesor and loading Plate connects.
- 3. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as claimed in claim 2, it is characterised in that：One The telescopic ram of side is load cylinder, and the telescopic ram of opposite side is support cylinder, and the support cylinder is with mechanical From lock set.
- 4. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as described in one of claims 1 to 3, its feature It is：The horizontal loading device also includes height of specimen adjusting means, and the height of specimen adjusting means includes lower regulation and filled Put, the lower adjusting means is connected with moving guide rail groove.
- 5. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as claimed in claim 4, it is characterised in that：Institute It is screw mechanism to state lower adjusting means.
- 6. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as claimed in claim 4, it is characterised in that：Institute Stating height of specimen adjusting means also includes upper adjusting means, and the upper adjusting means is arranged on the upper end of the lower adjusting means, The upper adjusting means includes internal thread and internal thread button, and the internal thread is liftably arranged in internal thread button.
- 7. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as described in one of claims 1 to 3, its feature It is：The horizontal loading device also includes spliced lightweight safety glass, and the spliced lightweight safety glass includes lateral Safety glass and top cover safety glass.
- 8. the multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength as claimed in claim 7, it is characterised in that：Institute Framework both sides can be arranged on up or down by stating lateral safety glass, and the top cover safety glass inside and outside can be movably arranged at width False top both sides, the lateral safety glass and top cover safety glass surround closing processing space.
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| CN201720043170.7U CN206756595U (en) | 2017-01-13 | 2017-01-13 | The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength |
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| CN201720043170.7U CN206756595U (en) | 2017-01-13 | 2017-01-13 | The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769514A (en) * | 2017-01-13 | 2017-05-31 | 绍兴文理学院 | The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength |
| CN111751258A (en) * | 2019-03-27 | 2020-10-09 | 中国石油化工股份有限公司 | Sample placing device for observing pore deformation and experimental method |
-
2017
- 2017-01-13 CN CN201720043170.7U patent/CN206756595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769514A (en) * | 2017-01-13 | 2017-05-31 | 绍兴文理学院 | The multiple dimensioned testing machine transverse direction loading device of rock uniaxiality strength |
| CN111751258A (en) * | 2019-03-27 | 2020-10-09 | 中国石油化工股份有限公司 | Sample placing device for observing pore deformation and experimental method |
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