CN109781537A - A kind of full-automatic shock insulation rheometer - Google Patents
A kind of full-automatic shock insulation rheometer Download PDFInfo
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- CN109781537A CN109781537A CN201910000426.XA CN201910000426A CN109781537A CN 109781537 A CN109781537 A CN 109781537A CN 201910000426 A CN201910000426 A CN 201910000426A CN 109781537 A CN109781537 A CN 109781537A
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- rheometer
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- steel plate
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Abstract
The present invention relates to a kind of full-automatic shock insulation rheometers, including rheometer and computer；Rheometer includes: that shear box, workbench and load measure integrated system；Load measures integrated system and is integrated with hydraulic loading device and laser measurement system, shear box is mounted on workbench, the horizontal direction of shear box and vertically to be equipped with load measure integrated system, to realize horizontal direction respectively and vertically to the load of loading and the measurement of displacement；Computer measures integrated system connection by the load of digital control system and communications protocol and rheometer, carries out Automatic Control by test process of the computer to rheometer, realizes and cooperate.The rheometer uses hydraulic way to sample loading level to vertical loading, and the stability that shear stress applies is strong, it is ensured that experiment accuracy.
Description
Technical field
The present invention relates to rheometer, specifically a kind of full-automatic shock insulation rheometer.
Background technique
Soil body CLAY MINERALS AND THEIR SIGNIFICANCE, organic matter and certain oxides soil body stream corresponding with the rheology substance that water phase interaction generates
Become characteristic.Under the influence ofs external factor such as temperature, time and primary stress etc., the rheological behavior performance of the soil body is more complicated.Its
The rheological behavior of the middle soil body shows creep, stress relaxation, elastic after effect and hysteresis effect, long-term strength variation.Laboratory test
In the process, it is considered that: soil deformation amount is less than 0.01mm and has reached the creep stabilization sub stage in 10000s.
Traditional direct-shear mode rheometer generally includes shear box, horizontal direction loading system, vertically to loading system and displacement
Measurement system.It is wherein made of vertically to loading system counterweight, rope, lever and orientation pulley, by applying counterweight to sample
The control of horizontal stress is carried out, still, the composition form of counterweight and lever is easy to produce lever eccentric phenomenon, influences the essence of test
Degree；Although the composition form of counterweight and orientation pulley can effectively apply constant shear stress, horizontal direction to sample
The torque that loading system is easy to produce by rope combining form matched with orientation pulley, and rope is easy placing counterweight
When shake, there are eccentricity issues, influence shear stress application stability, further decrease the precision of shear stress.
Displacement measurement system is made of NOL ring, amesdial and dial gauge, since NOL ring is easy in actual operation
Load and displacement measurement mode when showing the offset error of measurement point, and demarcating is different from actual working condition.Next is adopted
Improve the precision of measurement to a certain extent with the reading form of amesdial and dial gauge, but it is cumbersome multiple on operating and calculating
The problems such as miscellaneous, data acquisition deviation, the error of test apparatus is to improve one of measurement efficiency and the difficult point of precision.
The deflection of Ground crack is more small in test, is tested on traditional direct-shear mode rheometer, external rings
The small vibration in border all has direct influence to the reading of experimental data, be easy to cause gross error.
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide a kind of full-automatic shock insulation rheometer,
The rheometer using hydraulic way to sample loading level to vertical loading, shear stress apply stability it is strong, really
Protect experiment accuracy；Automatic Control is carried out in combination with test process of the computer to rheometer, realizes and cooperates.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of full-automatic shock insulation rheometer, including rheometer and computer；Rheometer include: shear box, workbench and
Load measures integrated system；Load measures integrated system and is integrated with hydraulic loading device and laser measurement system, shear box installation
On workbench, the horizontal direction of shear box and vertically to be equipped with load measure integrated system, with realize respectively horizontal direction and
Vertically to the load of loading and the measurement of displacement；Computer is measured by the load of digital control system and communications protocol and rheometer
Integrated system connection carries out Automatic Control by test process of the computer to rheometer, realizes and cooperate.
Preferably, hydraulic loading device includes hydraulic pressure chamber and the load mandril that hydraulic pressure chamber end is arranged in, using hydraulic side
Formula drive load mandril applies loading；Laser measurement system includes Laser room, and Laser room is equipped with laser port.Using this knot
After structure, the indoor laser device of laser is led to by laser port, the supreme shear box side of transmitting laser or loading bolt upper surface
The displacement of laser measurement displacement loading bolt is crossed, and then the deflection of sample can be measured.
Preferably, shear box includes shell and inner box, and inner box includes upper shear box and lower shear box, and upper shear box is cut under
It cuts box and passes through fixed pin connection, upper shear box side is equipped with the stress end for being horizontally through shell；In inner box from lower to upper according to
It is secondary to be placed with sample, filter paper, permeable stone and pressure cap.
Preferably, in shear history, horizontally load measure integrated system load mandril and upper shear box by
The contact of power end applies horizontal direction loading to sample；In consolidation process, vertical load measures the load top of integrated system
Bar is entered in shell by loading bolt to be in contact with pressure cap, applies sample vertically to loading.
Preferably, upper shear box and lower shear box junction are equipped with water proof rubber pad；Shell is made of water-keeping material.Using
After this structure, shell has the function of that heat and moisture preserving, entire shear box closely connect, can effective water proof.
Preferably, horizontal positioned horizontal bubble is additionally provided on workbench.It is horizontal by observation after this structure
Bubble observes whether workbench is horizontal, by adjusting the horizontality of the height adjustment workbench of shock isolating pedestal.
Preferably, further include shock isolating pedestal and bracket, shock isolating pedestal is separately positioned on the upper and lower ends of bracket, upper end every
Shake support connect with workbench, the shock isolating pedestal of lower end with face contact.After this structure, setting up and down two layers every
Support is shaken, is conducive to reinforce isolation energy dissipation effect.
Preferably, shock isolating pedestal includes upper steel plate, lower steel plate and rubber damping pad；Rubber damping pad is located at upper steel plate under
Between steel plate, it is bolted between upper and lower steel plate and rubber damping pad between upper and lower steel plate.Using this structure
Afterwards, rubber damping pad has isolation energy dissipation effect, can be effectively reduced extraneous shock-effect to the shadow of rheometer measurement accuracy
It rings.
Preferably, upper steel plate is equipped with the anchor pole upwardly extended, and lower steel plate is equipped with the anchor pole extended downwardly, upper and lower steel
Sleeve is arranged on the anchor pole of plate；Shock isolating pedestal is placed by connecting between sleeve and workbench and bracket by sleeve
On the ground.After this structure, shock isolating pedestal connection is easy for installation.
Preferably, a computer is corresponding controls one or more rheometer.After this structure, a computer pair
More rheometers, which should be controlled, can be set the independent sample testing of multiple groups, be conducive to referring to comparison.
Generally speaking, the present invention has the advantage that
1. the rheometer using hydraulic way to sample loading level to vertical loading, stability is strong, Bu Huiyin
Ambient enviroment shakes and causes the variation of load energy, and then ensures the accurate and precision of numerical value.
2. being displaced using laser measurement system measurement and being computerizedd control to computer output displacement as a result, adopting, can press
The regulated procedure or instruction process that is operated or controlled automatically can be realized the automation control and data of test process
Acquisition arranges.Using servo closed control, system accuracy is high, can overcome influence of the opened loop control to test accuracy.Using
Laser measurement system measurement, reduces the accidental error caused by manually reading or gross error and the general dimensional measuring instrument of tabular form
Instrument error caused by reading can effectively improve Ground crack displacement measurement while meeting test measurement area requirement
Precision.
3. reducing influence of the extraneous shock-effect to device precision using shock isolating pedestal, external environment is reduced to test number
According to error.
4. the present invention is applicable not only to the Stress Control of shearing test, the strain controlling of shearing test, function are applied also for
Comprehensively, the utilization rate of testing equipment can be effectively improved, experimentation cost is reduced.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the internal structure chart that load measures integrated system.
Fig. 3 is the structural schematic diagram of shock isolating pedestal.
Label and corresponding parts title in figure are as follows: 1 is workbench, and 2 be computer, and 3 be shear box, and 4 be to add
Carrying capacity surveys integrated system, and 5 be the stress end of upper shear box, and 6 be shock isolating pedestal, and 6-1 is rubber damping pad, and 6-2 is upper steel plate,
6-3 is lower steel plate, and 6-4 is bolt, and 6-5 is sleeve, and 6-6 is anchor pole, and 7 be laser measurement system, and 8 be hydraulic loading device, and 9 are
Lower shear box, 10 be fixed pin, and 11 be pressure cap, and 12 be permeable stone, and 13 be sample, and 14 be loading bolt, and 15 be hydraulic pressure chamber, 16
To load mandril, 17 be Laser room, and 18 be laser port, and 19 be shell, and 20 be horizontal bubble.
Specific embodiment
Below with reference to examples and drawings, the present invention will be further described in detail, but embodiments of the present invention are not
It is limited to this.
A kind of full-automatic shock insulation rheometer, including rheometer and computer；Rheometer includes: shear box, workbench, two
A load measures integrated system, shock isolating pedestal, bracket and horizontal bubble.Two loads measure integrated systems be respectively horizontal direction and
Vertical load measures integrated system, to realize horizontal direction respectively and vertically to the load of loading and the measurement of displacement；Two
A load measures integrated system and is integrated with hydraulic loading device and laser measurement system.Branch is erected at the lower section of workbench,
Horizontally load measures integrated system, shear box and horizontal bubble and is installed on workbench.By observing horizontal bubble
Observe whether workbench is horizontal, by adjusting the horizontality of the height adjustment workbench of shock isolating pedestal.Shock isolating pedestal point
The upper and lower ends of bracket are not set, and the shock isolating pedestal of upper end connect with workbench, the shock isolating pedestal of lower end and ground face contact.
Computer measures integrated system connection by the load of digital control system and communications protocol and rheometer, by computer to rheometer
Test process carry out Automatic Control, realize cooperate.
Shear box includes inner box and the shell made of water-keeping material, and inner box includes upper shear box and lower shear box, is above cut
It cuts box and lower shear box passes through fixed pin connection, junction is equipped with water proof rubber pad；The side of upper shear box is equipped with and is horizontally through
The stress end of shell；Sample, filter paper, permeable stone and pressure cap are sequentially placed in inner box from lower to upper, pressure cap is equipped with
The one vertical loading bolt for passing through shell.The bottom of lower shear box and shell is threadedly coupled with workbench, lower shear box and outer
The drainage channel of shell bottom matches, and forms a complete drainage channel.
Hydraulic loading device includes hydraulic pressure chamber and the load mandril that hydraulic pressure chamber end is arranged in, using existing hydraulic device
It realizes hydraulic function, loading is applied using hydraulic way drive load mandril.Laser measurement system includes Laser room, on Laser room
Equipped with laser port.The indoor laser device of laser emits side or the load spiral shell of the supreme shear box of laser by laser port
Sample by the displacement of shear box on laser measurement and the displacement of loading bolt, and then is measured in horizontal direction in bolt upper surface
With vertical deflection.
Shock isolating pedestal includes upper steel plate, lower steel plate, rubber damping pad, anchor pole and sleeve；Upper steel plate is equipped with and upwardly extends
Anchor pole, lower steel plate is equipped with the anchor pole that extends downwardly, is arranged with sleeve on the anchor pole of upper and lower steel plate.Rubber damping pad position
Between upper steel plate and lower steel plate, it is bolted between upper and lower steel plate and rubber damping pad between upper and lower steel plate.
Shock isolating pedestal is placed on the ground by being rigidly connected between sleeve and workbench and bracket by sleeve.Rubber damping pad
With isolation energy dissipation effect, influence of the extraneous shock-effect to rheometer measurement accuracy can be effectively reduced.
The top of rheometer is equipped with the crossbeam that integrated system is measured for fixing vertical load, is installed using bolt solid
Fixed vertical load measures integrated system.
In shear history, horizontally load measures the load mandril of integrated system and the stress end of upper shear box connects
Touching applies horizontal direction loading to sample.In consolidation process, vertical load measures load mandril and the load of integrated system
Bolt is in contact, and applies sample vertically to loading.
The operation principle of the present invention is that:
Work operating instruction (vertically to load, horizontal direction load, shearing displacement, shearing force, decrement, compressed value etc.) passes through
Computer is sent to embedded computer control system, and ((MCU system), embedded computer control system assign commands to the present invention
Load measure integrated system.
Shear history: embedded computer control system measures the hydraulic loading device hair of integrated system to horizontally load
The cut command for sending target level shearing force τ controls the work of its hydraulic pressure chamber, and hydraulic loading device works therewith, passes through drive
Dynamic load mandril applies horizontal shear force τ to upper shear box and lower shear box, and is fed into embedded computer by data line
Control system.Meanwhile controlled level to load measure integrated system laser measurement system in laser device pass through laser
Port emits the supreme shear box side of laser, measures the horizontal distortion amount s of sample1, and by its horizontal distortion amount s1Pass through data line
Data collection system is fed back to, and then is sent to computer.
Consolidation process: embedded computer control system measures the hydraulic loading device hair of integrated system to vertical load
The loading command for sending target axial stress σ controls the work of its hydraulic pressure chamber, and hydraulic loading device works therewith, passes through driving
Load mandril pushes loading bolt to move down, and applies axial stress σ to sample, and axial stress σ is fed back by data line
Into embedded computer control system.Meanwhile the vertical load of control measures laser in the laser measurement system of integrated system
Instrument is emitted at the top of laser to loading bolt by laser port, measures the vertical deformation s of sample2, and by its vertical deformation
Measure s2Data collection system is fed back to by data line, and then is sent to computer.
The working principle of shock isolating pedestal are as follows: rubber damping pad and upper and lower Laminated steel are superimposed, and vulcanize through high temperature and pressure
It bonds.When shock isolating pedestal bears vertical load, constraint of the transversely deforming of rubber damping pad by upper and lower steel plate makes
It has very big vertical bearing capacity and rigidity；When shock isolating pedestal bears horizontal loading, the relative displacement of rubber damping pad is big
It is big to reduce, make entirety will not unstability.When external environment causes vibrations load, shock isolating pedestal is shaken by the damping of rubber damping pad
The dynamic vibration for making the continuous reduction of energy, the energy of dissipation vibrations load, it is intended that block vibrations load and propagated to workbench.
Other than the mode that above-described embodiment refers to, it is replaced by the shear box of different size, form, is able to carry out difference
The experimental study of the circle, square coupons of size, and unsaturation testing equipment can be upgraded on the basis of existing, it is practical,
It has wide range of applications.Sample can not be crossed by being filled into shear box, and the shell of shear box has the function of heat and moisture preserving,
The degree of saturation of sample during guarantee test.One computer more rheometer of corresponding control, it is independent in parallel to be arranged to multiple groups
Rheometer to testing respectively sample, be conducive to referring to comparison.It may be arranged as saturation or unsaturation rheometer.These
Mapping mode is within the scope of the invention.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of full-automatic shock insulation rheometer, it is characterised in that: including rheometer and computer；Rheometer includes: shear box, work
Make platform and load measures integrated system；Load measures integrated system and is integrated with hydraulic loading device and laser measurement system, cuts
Box is cut to be mounted on workbench, the horizontal direction of shear box and vertically to be equipped with load measure integrated system, to realize respectively
Horizontal direction and vertically to the load of loading and the measurement of displacement；Computer passes through digital control system and communications protocol and rheometer
Load measures integrated system connection, carries out Automatic Control by test process of the computer to rheometer, realizes and cooperate.
2. full-automatic shock insulation rheometer described in accordance with the claim 1, it is characterised in that: hydraulic loading device include hydraulic pressure chamber and
The load mandril of hydraulic pressure chamber end is set, loading is applied using hydraulic way drive load mandril；Laser measurement system includes
Laser room, Laser room are equipped with laser port.
3. full-automatic shock insulation rheometer according to claim 2, it is characterised in that: shear box includes shell and inner box, interior
Box includes upper shear box and lower shear box, and upper shear box and lower shear box pass through fixed pin connection, and upper shear box side is equipped with
It is horizontally through the stress end of shell；Sample, filter paper, permeable stone and pressure cap have been sequentially placed in inner box from lower to upper.
4. full-automatic shock insulation rheometer described in accordance with the claim 3, it is characterised in that: in shear history, horizontally plus
The load mandril that carrying capacity surveys integrated system is contacted with the stress end of upper shear box, applies horizontal direction loading to sample；It is consolidating
In the process, the load mandril that vertical load measures integrated system is entered in shell by loading bolt to connect with pressure cap
Touching applies vertically to loading sample.
5. full-automatic shock insulation rheometer described in accordance with the claim 3, it is characterised in that: upper shear box and lower shear box junction
Equipped with water proof rubber pad；Shell is made of water-keeping material.
6. full-automatic shock insulation rheometer described in accordance with the claim 1, it is characterised in that: be additionally provided on workbench horizontal positioned
Horizontal bubble.
7. full-automatic shock insulation rheometer described in accordance with the claim 1, it is characterised in that: it further include shock isolating pedestal and bracket, every
Shake support is separately positioned on the upper and lower ends of bracket, the shock isolating pedestal of upper end connect with workbench, the shock isolating pedestal of lower end and
Ground face contact.
8. full-automatic shock insulation rheometer according to claim 7, it is characterised in that: shock isolating pedestal includes upper steel plate, lower steel
Plate and rubber damping pad；Rubber damping pad is between upper steel plate and lower steel plate, between upper and lower steel plate and upper and lower steel plate and rubber
It is bolted between glue damping pad.
9. full-automatic shock insulation rheometer according to claim 8, it is characterised in that: upper steel plate is equipped with the anchor upwardly extended
Bar, lower steel plate are equipped with the anchor pole extended downwardly, are arranged with sleeve on the anchor pole of upper and lower steel plate；Shock isolating pedestal passes through sleeve
It connects between workbench and bracket, is placed on the ground by sleeve.
10. full-automatic shock insulation rheometer described in accordance with the claim 1, it is characterised in that: the corresponding control one of a computer
Or more rheometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000426.XA CN109781537A (en) | 2019-01-02 | 2019-01-02 | A kind of full-automatic shock insulation rheometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000426.XA CN109781537A (en) | 2019-01-02 | 2019-01-02 | A kind of full-automatic shock insulation rheometer |
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| Publication Number | Publication Date |
|---|---|
| CN109781537A true CN109781537A (en) | 2019-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910000426.XA Withdrawn CN109781537A (en) | 2019-01-02 | 2019-01-02 | A kind of full-automatic shock insulation rheometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146385A (en) * | 2019-05-31 | 2019-08-20 | 广州大学 | A kind of consolidation apparatus and measurement method |
-
2019
- 2019-01-02 CN CN201910000426.XA patent/CN109781537A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146385A (en) * | 2019-05-31 | 2019-08-20 | 广州大学 | A kind of consolidation apparatus and measurement method |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |
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| WW01 | Invention patent application withdrawn after publication |