CN106644753A - Hollow cylindrical rock torsional shear apparatus for improving torque application accuracy - Google Patents
Hollow cylindrical rock torsional shear apparatus for improving torque application accuracy Download PDFInfo
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- CN106644753A CN106644753A CN201611029623.7A CN201611029623A CN106644753A CN 106644753 A CN106644753 A CN 106644753A CN 201611029623 A CN201611029623 A CN 201611029623A CN 106644753 A CN106644753 A CN 106644753A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of rock mechanical test equipment, and discloses a hollow cylindrical rock torsional shear apparatus for improving torque application accuracy. The apparatus comprises a framework, a lifting device, a base, a confining pressure barrel, an upper seat, a transmission shaft group, a transmission shaft bracket, a torque applying structure, a torque sensor, a coupling and a controller. The invention provides a torsional shear apparatus capable of ensuring the torque application accuracy and reliability.
Description
Technical field
The present invention relates to rock mechanics equipment technical field, more particularly to a kind of to lift the rock that moment of torsion applies precision
Hollow cylinder torsional shear instrument.
Background technology
Need to build a large amount of buried in the construction of the foundation engineering such as traffic, water conservancy and hydropower, mining and resource/energy development field
Major long tunnel (tunnel, tunnel), TBM (tunneling boring rock tunnel development machine) is become with its safe efficient, economic dispatch unique advantage
The optimal selection of Deep-buried Long And Big Tunnels (tunnel, tunnel) construction and inevitable development direction.TBM digging process can cause surrouding rock stress
Generation is persistently adjusted, and its outstanding feature is：Principal stress value is significantly alterred simultaneously with principal axis of stress big angle rotary.In depth
Under burying condition of high ground stress, the above-mentioned change of surrouding rock stress often results in the Important Project disasters such as high intensity rock burst, large deformation card machine frequency
Send out, serious to threaten personnel and construction safety, economic loss is huge.Therefore, deep formation TBM driving country rock principal stresses are deeply disclosed
It is to carry out above-mentioned Important Project disaster that value changes with surrounding rock failure mechanism and mechanical characteristics under the conditions of principal axis of stress rotation combination
Accurate Prediction and the basic premise and scientific basis of reliable prevention and control, are also that deep formation TBM type selectings and system suitability design are needed
The key factor for wanting emphasis to consider.
Both at home and abroad in existing rock mechanics experiment instrument, including for complicated stress environment can be simulated：Rock open circles
Post torsion shear apparatus.But in its course of work, the moment of torsion of applying applies power original paper inverse and obtains by moment of torsion, but by
In factors such as the mechanical conductive structure interstitial gap of itself, friction etc., value of the practical function on terminal sample is caused to have lost
Part, so as to cause experimental data serious distortion.
The content of the invention
The present invention provides a kind of rock hollow cylinder torsional shear instrument for lifting moment of torsion applying precision, solves moment of torsion in prior art
Force procedure structure loss of machine of torque, causes the technical problem of test reliability and precision.
To solve above-mentioned technical problem, the invention provides a kind of lift the rock hollow cylinder torsional shear that moment of torsion applies precision
Instrument, including：Framework, lowering or hoisting gear, base, confined pressure bucket, the seat of honour, force transmission shaft group, power transmission bracing strut, moment of torsion apply structure, moment of torsion
Sensor, shaft coupling and controller；
The force transmission shaft group includes：The first shaft coupling connected by the shaft coupling and second shaft coupling；The moment of torsion
Sensor is arranged on the shaft coupling, for detecting the moment of torsion in force transmission shaft group；
The lowering or hoisting gear is fixed on said frame, and the base is fixed on the lowering or hoisting gear；
The confined pressure bucket is fixed on the base, and on the base, one is arranged in confined pressure barrel cavity is used to fix sample
The push-down head of bottom；
The seat of honour is fixed on the confined pressure bucket top, surrounds specimen reaction with the confined pressure bucket and the base empty
Between；
The first force transmission shaft middle part is embedded in the seat of honour, and bottom is located in the reaction compartment, first power transmission
Axle bottom arranges one to be used to fix the seaming chuck on sample top；
First force transmission shaft middle part is located on the shaft in the seat of honour and arranges a piston, arrange at the seat of honour in one and
The force oil pocket is separated into upper force oil pocket and lower force oil pocket by the force oil pocket of the piston matching, the piston；
The force transmission shaft group is fixed on the framework by the power transmission bracing strut, relatively the framework keep axially and
It is radially static；
The moment of torsion applies structure to be fixed on said frame, is connected with the second force transmission shaft top, for applying to turn round
Square；
The confined pressure bucket, the upper force oil pocket and the lower force oil pocket are respectively provided with for being connected with external hydraulic element
Oil transportation channel；
The controller applies structure, the lifting structure, Hydraulic Elements and the moment of torsion and passes with the moment of torsion respectively
Sensor is connected；
Wherein, the torque sensor controls the moment of torsion applying structure via the controller；
The controller realizes chain control to the lifting structure and the Hydraulic Elements, when hydraulic pressure original is to institute
Force oil pocket fuel feeding or draining are stated, when driving the reaction compartment to move up and down relative to the force transmission shaft, the lifting dress
Put with reaction compartment movement.
Further, the lowering or hoisting gear includes：Hydraulic power units, guide rail and lifting support；
The guide rail is fixed on said frame, and the lifting support with the slide block of the guide rail by being fixed on institute
State on guide rail；
The Hydraulic power units is fixed between the framework and the lifting support, drives the lifting support along institute
State guide rail movement.
Further, the Hydraulic power units includes：Hydraulic jack.
Further, the oil transportation channel for opening up in the confined pressure bucket includes：
On the seat of honour and base, the oil transportation channel of the confined pressure barrel cavity is connected；
On the base, the oil transportation channel of rock hollow cylinder sample inner chamber is connected.
Further, adhesion structure is set on the seaming chuck and the push-down head, for by the end of the sample
It is bonded in respectively on the seaming chuck and push-down head.
Further, power transmission bracing strut includes：First support and first flange screw thread；
Described first support one end is fixed on said frame, and the other end is by the first flange screw thread and described first
Force transmission shaft is connected.
Further, the power transmission bracing strut also includes：Second support and second flange screw thread；
Described second support one end is fixed on said frame, and the other end is by the second flange screw thread and described second
Force transmission shaft is connected.
Further, the moment of torsion applies structure includes：Moment of torsion transmission rod, moment of torsion apply oil cylinder and oil cylinder fixed base
Seat；
Described moment of torsion transmission rod one end is connected with the transmission rod top, and the other end is applied by oscillating bearing with the moment of torsion
Plus the piston head of oil cylinder is connected.
Further, the moment of torsion transmission rod is fixed on second force transmission shaft.
Further, between the base and the confined pressure bucket, between the seat of honour and the confined pressure bucket and it is described on
Sealing ring is respectively provided between seat and the force transmission shaft.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
In the embodiment of the present application provide lifted moment of torsion apply precision rock hollow cylinder torsional shear instrument, by with sample
Terminal torque sensor is set in the force transmission shaft group of directly contact, and detection acts on the actual torque of sample, feedback control moment of torsion
Apply dynamical element, so as to moment of torsion of the guarantee effect on the sample of mechanotransduction configuration terminal is the value of test requirements document, fully
Ensure that the reliability of experimental data.
Further, this torsion shear apparatus also reforms the moment of torsion and axial force distribution mode of torsion shear apparatus, coordinates two operating process, keeps away
Exempt from it to interfere；Specifically, by the way that force transmission shaft is fixed on framework, keep axially and static radially with respect to framework；
Place a torque on structure to fix on said frame, be force fulcrum with it；Lifting structure is set, the reaction of lifting main body is performed empty
Between operate so that the moving part of axial force distribution process makes main body reaction compartment into by conventional force transmission shaft；So that force transmission shaft exists
Complete axial force distribution in the case of axially and radially there is no displacement, at the same the operation of moment of torsion force due to force transmission shaft axially and
It is diametrically opposite static in framework, and moment of torsion force component only applies tangential moment of torsion to force transmission shaft, it is relative axially and tangentially going up
It is static, it is achieved thereby that apply torque operation and axial force distribution operation, it is relatively independent, interfere so as to avoid；Ensure
Test reliability and precision.Overcome moment of torsion in existing structure and apply being rigidly connected for structure and force transmission shaft, it is to avoid generation
Due to the structural stress that movement tendency is produced, and force precision is affected, the problem of angle and stability.
Description of the drawings
Fig. 1 lifts the structural representation that moment of torsion applies the rock hollow cylinder torsional shear instrument of precision for what the present invention was provided；
Fig. 2 lifts the outline drawing that moment of torsion applies the rock hollow cylinder torsional shear instrument of precision for what the present invention was provided.
Specific embodiment
The embodiment of the present application is solved existing by providing a kind of rock hollow cylinder torsional shear instrument for lifting moment of torsion applying precision
The torque structure loss of moment of torsion force process, causes the technical problem of test reliability and precision in technology；Lifting examination is reached
Test the technique effect of reliability and precision.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than to the restriction of technical scheme, in the case where not conflicting, the embodiment of the present application
And the technical characteristic in embodiment can be mutually combined.
Referring to Fig. 1 and Fig. 2, a kind of lifting moment of torsion applies the rock hollow cylinder torsional shear instrument of precision, including：Framework 1, lifting
Device (2,3), base 4, confined pressure bucket 10, the seat of honour 18, force transmission shaft 26, power transmission bracing strut (29,30,34,38), moment of torsion apply structure
And controller.
Specifically, the force transmission shaft group includes：The shaft coupling of first shaft coupling 26 and second connected by the shaft coupling
Device 33；The torque sensor 32 is arranged on the shaft coupling 31, for detecting the moment of torsion in force transmission shaft group；The moment of torsion is passed
Sensor is connected with control, and the control applies structure and is connected with moment of torsion；So as to pass through the actual torque of examinations terminal sample,
Carry out the output that feedback control moment of torsion applies structure, it is ensured that the applying moment of torsion suffered by the experiment in mechanotransduction configuration terminal is
Test requirements document value, it is ensured that the precision and reliability of test.
The lowering or hoisting gear is fixed on the framework 1, and the base 4 is fixed on the liter by base fixing bolt 5
On falling unit；So as to the lifting for realizing base declines control.
The confined pressure bucket 10 is fixed on the base 4, and on the base 4, one is arranged in confined pressure barrel cavity 17 is used for admittedly
Determine the push-down head 9 of the bottom of sample 11, be fixed on the base 4 by push-down head fixing bolt 8.
The seat of honour 18 is fixed on the top of confined pressure bucket 10 by seat of honour fixing bolt 14, with the confined pressure bucket 10 and
The base 4 surrounds specimen reaction space；Environment space and confined pressure as specimen reaction applies space.And, the seat of honour 18
Compressed by turnbuckle 16 with base 4.
Further, the oil pocket that exerts a force generally is surrounded by the groove on the seat of honour 18 with groove lid 28, and by groove lid fixing bolt
25 fix；Maintenance easy to disassemble.
The middle part of first force transmission shaft 26 is embedded in the seat of honour 18, and bottom is located in the reaction compartment, and described first
The bottom of force transmission shaft 26 arranges one to be used to fix the seaming chuck 12 on sample top.
Test equipment hole 13 is set on the seaming chuck 12, for the entrance of each class testing sensor.
The middle part of first force transmission shaft 26 is located on the shaft in the seat of honour 18 and arranges a piston 22, sets in the seat of honour
A force oil pocket matched with the piston is put, the force oil pocket is separated into upper force oil pocket 23 and is applied with by the piston 22
Power oil pocket 21；So as to the relative motion of piston and force oil pocket is realized in the input and output for passing through hydraulic oil.Perform force and unload power behaviour
Make.
Second force transmission shaft 33 is fixed on the framework 1 by the power transmission bracing strut, and relatively described framework keeps
It is axially and radially static.The moment of torsion applies structure to be fixed on said frame, is connected with the top of the second force transmission shaft 33, is used
In applying moment of torsion；So as to form the version that force transmission shaft group applies the tangential side displacement relative movement of structure with moment of torsion so that
Axial force distribution and tangentially exert a force separate；Avoid influencing each other.
The confined pressure bucket 10, the upper force oil pocket 23 and the lower force oil pocket 21 are respectively provided with for first with external hydraulic
The oil transportation channel (24,20,15,6,7) of part connection；For applying confined pressure and hydraulic pressure force operation.
The controller applies structure, the lifting structure and Hydraulic Elements and is connected with the moment of torsion respectively；The control
Device processed realizes chain control to the lifting structure and the Hydraulic Elements, when hydraulic pressure original is to the force oil pocket fuel feeding
Or draining, when driving the reaction compartment to move up and down relative to the force transmission shaft, the lowering or hoisting gear is empty with the reaction
Between move.
Further, the lowering or hoisting gear includes：Hydraulic power units, guide rail 2 and lifting support 3；
The guide rail 2 is fixed on the framework 1, and the lifting support 3 is fixed by the slide block matched with the guide rail 2
On the guide rail 2；
The Hydraulic power units is fixed between the framework 1 and the lifting support 3, drives the lifting support edge
The guide rail movement.
Specifically, the Hydraulic power units includes：Hydraulic jack.
Further, the oil transportation channel for opening up in the confined pressure bucket 10 includes：
On the seat of honour 18 and base 4, the oil transportation channel (6,15) of the confined pressure barrel cavity is connected；
On the base 4, the oil transportation channel 7 of the inner chamber of rock hollow cylinder sample 11 is connected.
Further, adhesion structure is set on the seaming chuck 12 and the push-down head 9, for by the end of the sample
Portion is bonded in respectively on the seaming chuck and push-down head.
Further, power transmission bracing strut includes：Second support 38 and second flange screw thread 34；
The one end of the second support 38 is fixed on the framework 1, and the other end is by the second flange screw thread 34 and institute
State the second force transmission shaft 33 to be connected.
Further, the power transmission bracing strut also includes：First support 29 and first flange screw thread 30；
The one end of the second support 29 is fixed on the framework 1, and the other end is by the second flange screw thread 30 and institute
State the first force transmission shaft 26 to be connected；
Wherein, second thread flange 34 and first thread flange 30 respectively be located at second force transmission shaft 34 with
And first force transmission shaft 26.So as to forming two fulcrums, it is ensured that force transmission shaft is stablized.
Further, the moment of torsion applies structure includes：Moment of torsion transmission rod, moment of torsion apply oil cylinder 37 and oil cylinder fixed base
Seat 36；
Described moment of torsion transmission rod one end is connected with the transmission rod top 33, and the other end is by oscillating bearing and the moment of torsion
The piston head for applying oil cylinder 37 is connected.
Preferably, the moment of torsion applies the afterbody of oil cylinder 37 by pivotal axis 35 and the oil cylinder fixed pedestal 36 pivot company
Connect.
Further, the moment of torsion transmission rod be fixed on first thread flange 34 and second thread flange 30 it
Between.So as to ensure that moment of torsion applies, the attitude of force transmission shaft is not affected.
Further, between the base and the confined pressure bucket, between the seat of honour and the confined pressure bucket and it is described on
Sealing ring 27,19 is respectively provided between seat and first force transmission shaft 26.
Lower mask body place of matchmakers states the course of work of torsion shear apparatus.
The specific present invention carries out laboratory test, carries out according to the following steps：
Step 1：Hollow rock sample 11 is installed.Lifting support 3 is dropped into minimum point, before sample is installed, measuring instrument is put
Enter inside hollow rock sample 11, by the one end of hollow rock sample 11 seccotine bonding push-down head 9, other end seccotine bonding seaming chuck
12, impermeable leather hose is surrounded by hollow rock sample 11, it is fixed on base 4 by push-down head fixing bolt 8, and by correlation
Measuring apparatus put the inside and outside of hollow rock sample 11 into.
Step 2：Risen using controller control base 4 so that confined pressure bucket 10 is contacted with the seat of honour 18, now seaming chuck 12
On groove and the bottom of the first force transmission shaft 26 plush copper occlusion, complete the installation of hollow rock sample.
Step 3：Implement loading.Outer the first oil transportation channel of confined pressure 6 and the oil transportation channel of outer confined pressure second are controlled using controller
15 to the oil transportation of confined pressure barrel cavity 17, applies outer confined pressure.Interior confined pressure oil transportation channel 7 provides interior toward the cavity oil transportation in hollow rock sample 11
Confined pressure.Exerted a force toward in axle power the oil transportation of oil pocket 24 by axially loaded oil transportation channel 23, promote groove lid 28 to make testing machine and make its to
Upper motion, (force transmission shaft top 33 is static) applies axle power.The upper groove of seaming chuck 12 and the plush copper of the bottom of the first force transmission shaft 26
Occlusion, promotes the first force transmission shaft 26 to move in a circle and provide moment of torsion for hollow rock sample by moment of torsion applying oil cylinder 37.During, lead to
The real-time monitoring terminal moment of torsion of torque sensor 32 is crossed, feedback control moment of torsion applies the output of oil cylinder 37 so that terminal torque is examination
Test required value.
Step 4：Sample is torn in unloading open.The unloading of inside and outside confined pressure is roughly the same with loading method, is pumped by controller control, enters
Row unloading.The seat of honour 18 is promoted to make testing machine overall downward by the oil transportation of oil pocket 21 that exert a force under axle power of axially unloading oil transportation channel 20
Motion, unloads axial compressive force.The unloading of moment of torsion applies the counter motion of oil cylinder 37 using moment of torsion.After unloading, using controller
Control lifting support 3 declines, and hollow rock sample is dismantled afterwards.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
In the embodiment of the present application provide lifted moment of torsion apply precision rock hollow cylinder torsional shear instrument, by with sample
Terminal torque sensor is set in the force transmission shaft group of directly contact, and detection acts on the actual torque of sample, feedback control moment of torsion
Apply dynamical element, so as to moment of torsion of the guarantee effect on the sample of mechanotransduction configuration terminal is the value of test requirements document, fully
Ensure that the reliability of experimental data.
Further, the moment of torsion and axial force distribution mode of torsion shear apparatus are reformed, coordinates two operating process, it is to avoid it is mutually dry
Disturb；Specifically, by the way that force transmission shaft is fixed on framework, keep axially and static radially with respect to framework；Place a torque on
Structure is fixed on said frame, is force fulcrum with it；Lifting structure is set, the operation of lifting main body reaction compartment is performed, is made
The moving part for obtaining axial force distribution process makes main body reaction compartment into by conventional force transmission shaft；So that force transmission shaft is axially and radially
Axial force distribution is completed in the case of there is no displacement, while the operation of moment of torsion force is axially and radially being gone up relatively due to force transmission shaft
It is static in framework, and moment of torsion force component only applies tangential moment of torsion to force transmission shaft, geo-stationary is axially and tangentially being gone up, so as to reality
Show and applied torque operation and axial force distribution operation, it is relatively independent, interfere so as to avoid；Ensure that test reliability
And precision.Overcome moment of torsion in existing structure and apply being rigidly connected for structure and force transmission shaft, it is to avoid generation is due to movement tendency
The structural stress of generation, and force precision is affected, the problem of angle and stability.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (10)
1. it is a kind of to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that to include：Framework, lowering or hoisting gear,
Base, confined pressure bucket, the seat of honour, force transmission shaft group, power transmission bracing strut, moment of torsion apply structure, torque sensor, shaft coupling and controller；
The force transmission shaft group includes：The first shaft coupling connected by the shaft coupling and second shaft coupling；The torque sensing
Device is arranged on the shaft coupling, for detecting the moment of torsion in force transmission shaft group；
The lowering or hoisting gear is fixed on said frame, and the base is fixed on the lowering or hoisting gear；
The confined pressure bucket is fixed on the base, and on the base, one is arranged in confined pressure barrel cavity is used to fix sample bottom
Push-down head；
The seat of honour is fixed on the confined pressure bucket top, and with the confined pressure bucket and the base specimen reaction space is surrounded；
The first force transmission shaft middle part is embedded in the seat of honour, and bottom is located in the reaction compartment, the first force transmission shaft bottom
End arranges one to be used to fix the seaming chuck on sample top；
First force transmission shaft middle part is located on the shaft in the seat of honour and arranges a piston, at the seat of honour in setting one with it is described
The force oil pocket is separated into upper force oil pocket and lower force oil pocket by the force oil pocket of piston matching, the piston；
The force transmission shaft group is fixed on the framework by the power transmission bracing strut, and relatively described framework keeps axially and radially
It is static；
The moment of torsion applies structure to be fixed on said frame, is connected with the second force transmission shaft top, for applying moment of torsion；
The confined pressure bucket, the upper force oil pocket and the lower force oil pocket are respectively provided with for defeated with what external hydraulic element was connected
Oily passage；
The controller applies structure, the lifting structure, Hydraulic Elements and the torque sensor with the moment of torsion respectively
It is connected；
Wherein, the torque sensor controls the moment of torsion applying structure via the controller；
The controller realizes chain control to the lifting structure and the Hydraulic Elements, when hydraulic pressure original is applied to described
Power oil pocket fuel feeding or draining, when driving the reaction compartment to move up and down relative to the force transmission shaft, the lowering or hoisting gear with
The reaction compartment movement.
2. it is as claimed in claim 1 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that the liter
Falling unit includes：Hydraulic power units, guide rail and lifting support；
The guide rail is fixed on said frame, and the lifting support with the slide block of the guide rail by being fixed on described leading
On rail；
The Hydraulic power units is fixed between the framework and the lifting support, drives the lifting support to lead along described
Rail is moved.
3. it is as claimed in claim 2 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that the liquid
Pressure power element includes：Hydraulic jack.
4. it is as claimed in claim 3 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that described to enclose
The oil transportation channel opened up in pressure bucket includes：
On the seat of honour and base, the oil transportation channel of the confined pressure barrel cavity is connected；
On the base, the oil transportation channel of rock hollow cylinder sample inner chamber is connected.
It is 5. as claimed in claim 4 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that：On described
Adhesion structure is set on pressure head and the push-down head, for by the end of the sample be bonded in respectively the seaming chuck and under
On pressure head.
6. it is as claimed in claim 4 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that force transmission shaft
Support includes：First support and first flange screw thread；
Described first support one end is fixed on said frame, and the other end is by the first flange screw thread and first power transmission
Axle is connected.
7. it is as claimed in claim 6 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that the biography
Power bracing strut also includes：Second support and second flange screw thread；
Described second support one end is fixed on said frame, and the other end is by the second flange screw thread and second power transmission
Axle is connected.
8. the rock hollow cylinder torsional shear instrument that moment of torsion applies precision is lifted as described in right may call for 7, it is characterised in that described
Moment of torsion applies structure to be included：Moment of torsion transmission rod, moment of torsion apply oil cylinder and oil cylinder fixed pedestal；
Described moment of torsion transmission rod one end is connected with the transmission rod top, and the other end applies oil by oscillating bearing with the moment of torsion
The piston head of cylinder is connected.
It is 9. as claimed in claim 8 to lift the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, it is characterised in that：The torsion
Square transmission rod is fixed on second force transmission shaft.
10. the rock hollow cylinder torsional shear instrument that moment of torsion applies precision, its feature are lifted as described in any one of claim 1～9
It is：Between the base and the confined pressure bucket, between the seat of honour and the confined pressure bucket and the seat of honour and the power transmission
Sealing ring is respectively provided between axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029623.7A CN106644753B (en) | 2016-11-14 | 2016-11-14 | Rock hollow cylinder torsional shear instrument for improving torque application precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029623.7A CN106644753B (en) | 2016-11-14 | 2016-11-14 | Rock hollow cylinder torsional shear instrument for improving torque application precision |
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| Publication Number | Publication Date |
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| CN106644753A true CN106644753A (en) | 2017-05-10 |
| CN106644753B CN106644753B (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611029623.7A Active CN106644753B (en) | 2016-11-14 | 2016-11-14 | Rock hollow cylinder torsional shear instrument for improving torque application precision |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449673A (en) * | 2017-07-31 | 2017-12-08 | 安徽理工大学 | A kind of rock loading oil circuit system and its experimental provision |
| CN108152147A (en) * | 2018-03-16 | 2018-06-12 | 华北理工大学 | Rock sample torsional fracture breaking test device and simulation rock sample torsional fracture destruction methods |
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN111157361A (en) * | 2020-01-06 | 2020-05-15 | 中国矿业大学 | Torsion shear test machine matched with CT scanner and using method thereof |
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
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| CN107449673A (en) * | 2017-07-31 | 2017-12-08 | 安徽理工大学 | A kind of rock loading oil circuit system and its experimental provision |
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| CN108152147B (en) * | 2018-03-16 | 2023-09-05 | 华北理工大学 | Rock sample torsion crack damage experimental device and simulated rock sample torsion crack damage method |
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN111157361A (en) * | 2020-01-06 | 2020-05-15 | 中国矿业大学 | Torsion shear test machine matched with CT scanner and using method thereof |
| CN111157361B (en) * | 2020-01-06 | 2021-01-26 | 中国矿业大学 | Torsion shear test machine matched with CT scanner and using method thereof |
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
| CN114165212B (en) * | 2021-11-26 | 2023-09-15 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
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