CN106950104B - A kind of combined horizontal testing stand and its material performance test method and system - Google Patents
A kind of combined horizontal testing stand and its material performance test method and system Download PDFInfo
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- CN106950104B CN106950104B CN201710141018.7A CN201710141018A CN106950104B CN 106950104 B CN106950104 B CN 106950104B CN 201710141018 A CN201710141018 A CN 201710141018A CN 106950104 B CN106950104 B CN 106950104B
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive 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
- G01N3/22—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
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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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
- G01N2203/0021—Torsional
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Abstract
The present invention relates to a kind of combined horizontal testing stands, including pedestal, and are installed on the loading device set gradually on the pedestal along same horizontal line, fixture, data acquisition device and supporting table；The fixture is used for axial restraint sample；Loading device includes tension and compression component and torsion component, and tension and compression component is loaded on the fixture for generating axial Tensile or Compressive Loading, torsion component for generating axial torsional load, and with Tensile or Compressive Loading linkage；Data acquisition device is connected between the supporting table and fixture, for being acquired to the Tensile or Compressive Loading of sample after load load and/or the data of torque.The present invention also provides the corresponding material performance test method of the testing stand and systems.The present invention solves the single technical problem of traditional experiment weighted platform loading method, can apply tension and compression and torsional load to sample simultaneously, keeps total system measurement accuracy high, and stability is good, and material property evaluation is reliable.
Description
Technical field
The present invention relates to material properties test and experimental teaching technical field more particularly to a kind of combined horizontal testing stand and
Material performance test method and system based on the combined horizontal testing stand.
Background technique
Currently, bearing tension-torsion, the component for turning round load being pressed to have a wide range of applications in engineering, such as the brill in petroleum works
When column, casing string, tubing string and rod string work in horizontal wellbore in addition to being pressurized, both ends are also by the power acted on along axis
Even, to form wrench of a force system effect, bar will occur to press twisting strain.The casing of aero-engine is similarly subjected to axis pressure, torsion combination
The effect of load, the buckling failure of casing will lead to the flow behavior of the inlet flow field of engine, and make engine causes vibration,
When serious entire engine can shake and buckling failure occurs to structure.It therefore is Knowing material under complex stress condition
Stress and strain corresponding relationship and complex stress change to material stress to the affecting laws of strain curve rate of change, build
Vertical complex stress multi-function test stand, and open up Related Experimental Study and be of great significance.
However, the loading method of existing experiment weighted platform is single, individually Tensile or Compressive Loading often can only be applied to sample
Perhaps torsional load therefore can not it is effectively measuring go out material in the case that bear tension-torsion or pressure turn round accurate stress condition.
Summary of the invention
The present invention problem single for experiment weighted platform loading method in the prior art, providing one kind can be simultaneously
Apply the combined horizontal testing stand and its material performance test method and system of Tensile or Compressive Loading and torsional load.
According to a first aspect of the present invention, a kind of combined horizontal testing stand, including pedestal are provided, and is installed on the bottom
Loading device, fixture, data acquisition device and the supporting table set gradually on seat along same horizontal line；The fixture is for axial
Fixed sample；The loading device includes tension and compression component and torsion component；The tension and compression component is used to generate axial tension and compression and carries
Lotus；The torsion component is loaded on the fixture for generating axial torsional load, and with Tensile or Compressive Loading linkage；Institute
Data acquisition device is stated to be connected between the supporting table and fixture, for load load after sample Tensile or Compressive Loading and/or
The data of torque are acquired.
Preferably, the data acquisition device includes at least: the first plummer, the first rotating cylinder, arm bar and the first power pass
Sensor；First plummer is fixedly installed on the pedestal, is equipped with first rotating cylinder in the middle part of first plummer
And only the first rotating cylinder described in radial constraint；First rotating cylinder one end is connect with the supporting table, and first rotating cylinder is another
The fixed fixture in end；First rotating cylinder side is fixedly connected with the arm bar, the end of the arm bar be fixed on
The first force snesor contact on the pedestal, first force snesor pass the first power for detecting the arm of force boom end
The pressure that sensor generates, to carry out the measurement of torque.
Preferably, the data acquisition device further includes that the second power being connected between first rotating cylinder and supporting table passes
Sensor, for detecting the Tensile or Compressive Loading of the sample.
Preferably, the tension and compression component includes at least retarder, the first rocking bar, spiral handspike, the second plummer and axial direction
Power changeover bobbin；The retarder and the second plummer are fixedly mounted on the base, and the spiral handspike runs through the deceleration
The middle part of device, first rocking bar are mounted on the retarder, generate axis for driving retarder to adjust the spiral handspike
To displacement；The axial force changeover bobbin is mounted in the middle part of second plummer, and second plummer is only in radial constraint
Axial force changeover bobbin；Partition is equipped in the axial force changeover bobbin, the axial force conversion is protruded into the end of the spiral handspike
It is connect in cylinder and with the partition, to drive the axial force changeover bobbin to generate axial displacement.
Preferably, the torsion component includes rotating mechanism, the second rotating cylinder, the second rocking bar, shaft and thrust bearing；It is described
Rotating mechanism is fixed on the base, and second rotating cylinder is mounted on the middle part of the rotating mechanism, the second rocking bar peace
On the rotating mechanism, for driving the second rotating cylinder rotation by the rotating mechanism；Second rotating cylinder one end
It is fixed with the shaft, the shaft runs through the axial force changeover bobbin, and passes through thrust bearing and the axial force changeover bobbin
Realize axial synchronous shift；The fixed fixture of the second rotating cylinder other end, for driving the fixture to rotate and/or producing
Raw axial displacement.The retarder in tension and compression component in the loading device, drives spiral handspike under the action of the first rocking bar
Realize axial mobile load, centre is transferred the load to by axial force changeover bobbin on the fixture of fixed sample, fixture and rotation
Rotation mechanism is connected, to realize that the torque to test specimen loads.
Preferably, the data acquisition device further includes the shaft encode for rotating freely end for being installed on the shaft
Device, the shaft-position encoder are used to acquire the torsion angle data of sample.
Second aspect of the present invention provides a kind of material properties test system based on combined horizontal testing stand, including above-mentioned
Combined horizontal testing stand and data processing equipment；The data of the data processing equipment and the combined horizontal testing stand acquire
Device connection, the data of Tensile or Compressive Loading and/or torque for acquiring to the data acquisition device are handled.
Preferably, the data for the torque that the data processing equipment is acquired in acquisition device based on the data are handled
When, it is calculated by the following formula torque M:
M=L × F；
Preferably, L is the distance vector on arm bar with the impetus of the first force snesor to the first rotating cylinder central axis；F
For the vectorial force of the first force snesor acquisition.
Preferably, the data processing equipment passes through a variety of in computer virtual technical device real-time measurement, record sample
The variation of load, and real-time display is carried out by assay surface, to obtain final experimental result.
Preferably, it is analog signal that data processing equipment is received from the data acquisition device of combined horizontal testing stand,
It is transmitted in computer after number conversion and by data record and analyzes, the acquisition data are sent to calculating by com port
In machine, and shown in the operation interface.
Third aspect present invention provides a kind of material property measurement side based on combined horizontal testing stand as described above
Method, comprising: loaded load step applies Tensile or Compressive Loading and/or torsional load to test specimen by loading device；And data acquisition
Step acquires the Tensile or Compressive Loading of sample and/or the data of torque by data acquisition device.
Combined horizontal testing stand of the invention and its material testing system and method, have the advantages that the present invention
By the way that tension and compression component and torsion component is arranged simultaneously in loading device, it is single to solve traditional experiment weighted platform loading method
The technical issues of, tension and compression and torsional load can be applied to sample simultaneously, and can be to the Tensile or Compressive Loading under the loading in composite
And/or the data of torque measure, and keep total system measurement accuracy high, stability is good, and material property evaluation is reliable；Into one
Step ground, the present invention can bear tension and compression by using the detection mode of arm of force set vectorial force to avoid conventional torque sensor
Problem easy to damage when load；Further, the device of the invention can load individually or simultaneously, improve when entirety measures
Flexibility.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the combined horizontal testing stand that the preferred embodiment of the present invention provides；
Fig. 2 is the section signal of the torque measurement part-structure for the combined horizontal testing stand that the preferred embodiment of the present invention provides
Figure；
Fig. 3 is the material properties test system module frame based on combined horizontal testing stand that the preferred embodiment of the present invention provides
Figure；
Fig. 4 is the material performance test method flow chart based on combined horizontal testing stand of the preferred embodiment of the present invention；
In figure: 1: pedestal；2: retarder；3: the second plummers；4: rotating mechanism；5: the first plummers；6: supporting table；7:
Spiral handspike；8: axial force changeover bobbin；81: partition；9: the second rotating cylinders；10: the first rotating cylinders；11: the second force snesors；12: axis
Angular encoder；13: shaft；14: thrust bearing；15: arm bar；16: the first force snesors；17: the first rocking bars；Shake at 18: the second
Bar；19: fixture；20: sample；100: combined horizontal testing stand；110: data acquisition device；200: data processing equipment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, unless otherwise indicated, term " on ", "lower", "left", "right", "inner", "outside", " one
End ", " other end ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig. 1, the structural schematic diagram of the combined horizontal testing stand provided for the preferred embodiment of the present invention.Such as Fig. 1 institute
Show, which includes pedestal 1, and the loading device, the fixture 19, data acquisition that are successively installed on pedestal 1
Device and supporting table 6.For example, lateral edge same horizontal line sets gradually loading device, fixture 19, data and adopts from right to left in Fig. 1
Acquisition means and supporting table 6.Wherein, fixture 9 is mounted between loading device and data acquisition device, is used for axial restraint sample
20." axial direction " referred in the present invention refers to that central axis direction when sample 20 is put along level, " circumferential direction " refer to sample 20
Perpendicular to the circumferencial direction on the cross section of central axis.Loading device is mounted on the right side of fixture 19, can link for fixture 19
Load Tensile or Compressive Loading and torsional load.The loading device includes tension and compression component and torsion component, and wherein tension and compression component is for generating
Tensile or Compressive Loading in axial direction, torsion component is then used to generate circumferential torsional load, and is loaded into Tensile or Compressive Loading linkage
On fixture 19.Supporting table 6 is fixed on the leftmost side of pedestal 1, provides the support force in left side for being connected in fixture 19 between in the axial direction.
The supporting table 6 can be realized using stop members such as block or baffles.Data acquisition device be connected to supporting table 6 and fixture 19 it
Between, for being acquired to the Tensile or Compressive Loading of sample 20 after load load and/or the data of torque.
In the preferred embodiment of the present invention, tension and compression component includes at least retarder 2, the first rocking bar 17, spiral handspike
7, the second plummer 3 and axial force changeover bobbin 8.Wherein, retarder 2 and the second plummer 3 are fixedly mounted on pedestal 1, spiral
Push rod 7 runs through the middle part of the retarder 2.First rocking bar 17 is mounted on retarder 2, can be driven by rotating the first rocking bar 17
Rack-and-pinion inside retarder 2 adjusts spiral handspike 7 and generates axial displacement.Axial force changeover bobbin 8 is mounted on along horizontal axis
The middle part of second plummer 3, and the second plummer 3 only constrains axial force changeover bobbin 8 radially.It is set in axial force changeover bobbin 8
There is partition 81, which is separated into left and right two parts chamber for axial force changeover bobbin 8.Axial direction is protruded into the end of spiral handspike 7
It is connect in the right chamber of power changeover bobbin 8 and with partition 81, to drive axial force changeover bobbin 8 to generate synchronous axial displacement.It should
Partition 81 is not exclusively fixedly connected with spiral handspike 7, and only constraint spiral handspike 7 generates axial displacement to partition 81 in the axial direction, when
When the rotation of spiral handspike 7 promotes to the left, axial force changeover bobbin 8 is not rotated with.It is turned round for connecting in the left side of axial force changeover bobbin 8
Turn component.
In the preferred embodiment of the present invention, torsion component include rotating mechanism 4, the second rotating cylinder 9, the second rocking bar 18,
Shaft 13 and thrust bearing 14.Wherein rotating mechanism 4 is fixedly mounted on pedestal 1.Second rotating cylinder 9 is mounted on rotation along horizontal axis
The middle part of rotation mechanism 4, rotating mechanism 4 are only that the second rotating cylinder 9 provides radial constraint.Second rocking bar 18 is mounted on rotating mechanism 4,
The worm gear mechanism inside rotating mechanism 4 can be driven by rotating the second rocking bar 18, the rotation for the second rotating cylinder 9 provides torsion
Square.Second rotating cylinder, 9 one end fixed rotating shaft 13, other end stationary fixture 19.Shaft 13 runs through the left side cavity of axial force changeover bobbin 8
Room, and axial synchronous shift is realized by two thrust bearings 14 and axial force changeover bobbin 8.The installation of the two thrust bearings 14
In shaft 13 and it is located at that axial force changeover bobbin 8 is inside and outside, to prevent the connection of rotation stop axis 13 and axial force changeover bobbin 8
Place, causes axial float because axial gap is excessive.Second rotating cylinder 9 can drive fixture 19 to rotate and/or generate axial displacement,
Individually to load tension and compression or torsional load, or linkage load tension and compression and torsional load.
Preferably, data acquisition device at least has the function of the measurement to torque data.Torsion is generallyd use in the prior art
Square sensor measures torque data, but this torque sensor cannot bear axial Tensile or Compressive Loading, is not particularly suited for this
Test platform in the case of invention complex stress.Therefore, present invention preferably employs the modes of arm of force combination force snesor to measure
The problem of torque data, the arm of force and force snesor being arranged by side efficiently avoid axially loaded.Please refer to figure
2, it is the schematic cross-section of the torque measurement part-structure for the combined horizontal testing stand that the preferred embodiment of the present invention provides.The data
Acquisition device includes at least: the first plummer 5, the first rotating cylinder 10, arm bar 15 and the first force snesor 16.As shown in Figure 1, the
One plummer 5 is fixedly installed on pedestal 1.First rotating cylinder 10 runs through first plummer 5.First rotating cylinder 10 is only in radial direction by
The constraint of one plummer 5, and can make rotating motion in first plummer 5.The left side of first rotating cylinder 10 is directly or indirectly
It is connected to supporting table 6, and supporting table 6 is that the first rotating cylinder 10 provides the support force in left side.First rotating cylinder, 10 right end stationary fixture
19.First rotating cylinder, 10 side is fixedly connected with arm bar 15.First force snesor 16 is fixedly mounted on pedestal 1, and is placed in power
Below the end of armed lever 15, contacted with the end of arm bar 15.First force snesor 16 is for detecting 15 end of arm bar to the
The pressure that one force snesor 16 generates, to carry out the measurement of torque.Preferably, the end of arm bar 15 can be by downwardly convex
Probe and the first force snesor 16 on detection face contact.It is highly preferred that the first force snesor 16 is located at 15 end of arm bar
Underface, and be vertically mounted on pedestal 1, arm bar 15 is at right angles contacted with the first force snesor 16, to guarantee
Power is vertically conducted, so that the first force snesor 16 detected is 15 end of arm bar to the first force snesor 16
The pressure of the vertical direction of generation.Force snesor be the units test tension that the magnitude of power is converted to associated electrical signals, pulling force,
The mechanical quantities such as pressure, weight, torque, internal stress and strain.First force snesor 16 is the force snesor that can detect pressure.It is excellent
Selection of land, first force snesor 16 are passed using the pressure of the model CL-YB-2/50KB of Wuxi Shi Ao Science and Technology Ltd. production
Sensor.Therefore, when carrying out torque measurement, since the first rotating cylinder 10 is connected with arm bar 15 and is contacted with the first force snesor 16
So not can rotate, only the end of arm bar 15 can be produced the first force snesor 16 under the effect of the twisting resistance of the first rotating cylinder 10
Raw pressure vertically downward, the first force snesor 16 is for detecting the pressure to carry out the measurement of torque.For example, measuring the arm of force
With the impetus of the first force snesor 16 to the distance vector L of 10 central axis of the first rotating cylinder on bar 15, then measure the first power biography
The vectorial force F that sensor 16 acquires, and it is calculated by the following formula torque M:M=L × F.
In preferred embodiment of the invention, data acquisition device also has the function of the measurement to Tensile or Compressive Loading.It is preferred that
Ground, data acquisition device further includes the second force snesor 11 being connected between the first rotating cylinder 10 and supporting table 6, for detecting
State the Tensile or Compressive Loading of sample 20.Second force snesor 11 is the tension and compression sensing for detection level axial direction upper pulling force or pressure
Device.Preferably, it is additionally provided with thrust bearing between the first rotating cylinder 10 and the second force snesor 11, to guarantee the second force snesor 11 not
Rotation.
In preferred embodiment of the invention, the data acquisition device further preferably includes being installed on the shaft 13
The shaft-position encoder 12 of end is rotated freely, which is used to acquire the torsion angle data of sample.
There are three types of embodiments for combined horizontal testing stand provided by the invention, can measure three kinds of different stress respectively
Under material property.The first embodiment is that individual Tensile or Compressive Loading load is carried out to sample 20.Laboratory technician can shake
One rocking bar 17, which drives the gear & rack structure movement inside retarder 2, so that spiral handspike 7 be driven to do spiral shell
Rotation moves and generates axial displacement.7 driving axial power changeover bobbin 8 of spiral handspike generates synchronous axial displacement.Axial force conversion
The Tensile or Compressive Loading being subject to is passed to the shaft 13 of its left end connection by cylinder 8.Tensile or Compressive Loading is passed to the second rotating cylinder 9 by shaft 13.
Tensile or Compressive Loading is loaded on fixture 19 by the second rotating cylinder 9 again.Tensile or Compressive Loading is passed to sample 20 by final fixture 19, to complete
Load of the tension and compression component to the tensile load or compressive load of test specimen 20.Data acquisition device can pass through the second force snesor 11
The tensile load or compressive load bear to sample 20 measure.
Second of embodiment is that individual torsional load load is carried out to sample 20.Laboratory technician can shake the second rocking bar
18.Second rocking bar 18 drives the worm gear mechanism movement inside rotating mechanism 4, and then drives the rotation of the second rotating cylinder 9, generates week
To torsional load.Second rotating cylinder 9 loads the torsional load on the fixed fixture 19 in its left end.Finally, fixture 19 will be turned round
It reprints lotus and passes to sample 20, to complete load of the torsion component to 20 torsional load of sample.Data acquisition device can lead to
The second force snesor 11 is crossed to measure the torque of sample 20.Meanwhile by shaft-position encoder 12 to the torsion angle of sample 20
It measures.
The third embodiment is to sample 20 while to apply Tensile or Compressive Loading and torsional load.Laboratory technician can shake simultaneously
First rocking bar 17 and the second rocking bar 18, the first rocking bar 17 drives the gear & rack structure movement inside retarder 2, and then drives spiral shell
Rotation push rod 7 spin movement and generate axial displacement.7 driving axial power changeover bobbin of spiral handspike, 8 synchronous shift, and pass through shaft
Tensile or Compressive Loading is passed to the second rotating cylinder 9 by 13.At the same time, the second rocking bar 18 drives the worm and gear machine inside rotating mechanism 4
Structure movement, and then drive the rotation of the second rotating cylinder 9.Second rotating cylinder 9 generates circumferential torsional load, and applies together with Tensile or Compressive Loading
Fixture 19 is added to, is loaded while to complete to 20 Tensile or Compressive Loading of sample and torsional load.Data acquisition device can be simultaneously
The Tensile or Compressive Loading and torque of sample 20 are measured by the first force snesor 16 and the second force snesor 11.And it can be into
One step is measured by the torsion angle of 12 pairs of shaft-position encoder tests 20.
Preferably, said spiral push rod 7, axial force changeover bobbin 8, shaft 13, the second rotating cylinder 9, fixture 19, sample 20,
One rotating cylinder 10 and the second force snesor 11 are respectively positioned on same axial horizontal line, guarantee Tensile or Compressive Loading or/and torsional load with this
It more effectively conducts to sample 20, while being also beneficial to acquisition of the data acquisition device to data.
The present invention also provides a kind of material properties test systems based on combined horizontal testing stand.Referring to Fig. 3, being root
According to the module frame chart of the material properties test system based on combined horizontal testing stand of the preferred embodiment of the present invention.As shown in figure 3,
The combined horizontal pilot system includes combined horizontal testing stand 100 and data processing equipment 200.Wherein combined horizontal testing stand
100 can be realized using foregoing combined horizontal testing stand 100.Data processing equipment 200 and the combined horizontal testing stand
Data acquisition device 110 in 100 connects, the data of Tensile or Compressive Loading and/or torque for acquiring to data acquisition device 110
It is handled, obtains design parameter value.Each sensor output is analog signal in data acquisition device 110.Data processing
Device 200 can be realized by such as demodulating system and computer, first passed through demodulating system for analog signal and carried out digital conversion, then pass
It is sent in computer and records and analyzes the data.Preferably, data processing equipment 200 can be adopted based on data acquisition device 110
The data of the torque of collection are handled, and are calculated by the following formula torque M:
M=L × F；
Wherein L is to swear at a distance from the impetus to 10 central axis of the first rotating cylinder of the first force snesor 16 on arm bar 15
Amount；F is the vectorial force of the first force snesor 16 acquisition.
Data processing equipment 200 is also used to record the numerical value and shaft angle of the Tensile or Compressive Loading of the second force snesor 11 measurement
The numerical value for the torsion angle that encoder 12 measures.Data processing equipment 200 can further draw the curve of torsion angle and torque simultaneously
The locating axial stress state of display.
It is highly preferred that the data processing equipment 200 passes through a variety of load in the test of calculation machine virtual instrument technology real-time measurement
Variation, and the variation of a variety of load in sample can be further recorded, and real-time display is carried out by assay surface, to obtain most
Whole experimental result.
The present invention also provides a kind of material performance test methods of combined horizontal testing stand, referring to Fig. 4, for according to this
The flow chart of the material performance test method of the combined horizontal testing stand of invention preferred embodiment.This method is based on foregoing
Combined horizontal testing stand is realized.As shown in figure 4, the material performance test method of the combined horizontal testing stand includes following step
It is rapid:
Firstly, in step S301, execute loaded load step, by loading device to test specimen apply Tensile or Compressive Loading and/
Or torsional load.For example, generating axial Tensile or Compressive Loading by tension and compression component, circumferential torsion is generated by torsion component and is carried
Lotus.Start the tension and compression component by shaking the first rocking bar 17, and/or shakes the second rocking bar 18 starting torsion component and complete to sample
The load of load.
Data collection steps S302 acquires the Tensile or Compressive Loading of sample and/or the data of torque by data acquisition device.Example
Tensile or Compressive Loading, torsion such as by aforementioned first force snesor 16, the second force snesor 11 and/or shaft-position encoder 12 to sample 20
Square and/or torsion angle measure.
Preferably, which further includes data processing step, passes through what is exported to data acquisition device
Data carry out conversion and calculate analysis, and sample is carried out Tensile or Compressive Loading load and/or pressed to turn round load load test most to obtain
Terminate fruit.The data processing step can be realized using foregoing data processing equipment 200.
In conclusion the present invention by loading device simultaneously be arranged tension and compression component and torsion component, it can be achieved that stretch,
Compression, tension-torsion, pressure turn round four kinds of load tests, can measure Tensile or Compressive Loading, torsion angle and torque simultaneously.And Tensile or Compressive Loading and
Torsional load can realize separation load and synchronous load, and separation control also may be implemented in loading velocity.Therefore, the present invention uses
It stretches, compression, reverse the loading method of any combination to evaluate the mechanical response of material.In addition, the present invention also provides be based on
The material performance test method and system of the combined horizontal testing stand.The present invention solves traditional experiment weighted platform loading method list
One the technical issues of, by axial load, torque, torsion angle synchro measure, keep total system measurement accuracy high, stability
Can be good, material property evaluation is reliable.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of combined horizontal testing stand, it is characterised in that: including pedestal (1), and be installed on the pedestal (1) along same
Loading device, fixture (19), data acquisition device and the supporting table (6) that horizontal line is set gradually；
The fixture (19) is used for axial restraint sample (20)；
The loading device includes tension and compression component and torsion component；The tension and compression component is for generating axial Tensile or Compressive Loading；Institute
Torsion component is stated to be loaded on the fixture (19) for generating circumferential torsional load, and with Tensile or Compressive Loading linkage；
The data acquisition device is connected between the supporting table and fixture, for the tension and compression to sample (20) after load load
Load and/or the data of torque are acquired；
The data acquisition device includes at least: the first plummer (5), the first rotating cylinder (10), arm bar (15) and the first power pass
Sensor (16)；
First plummer (5) is fixedly installed on the pedestal (1), is equipped in the middle part of first plummer (5) described
First rotating cylinder (10), and only the first rotating cylinder (10) described in radial constraint；Described first rotating cylinder (10) one end and the supporting table
(6) it connects, the fixed fixture (19) of the first rotating cylinder (10) other end；First rotating cylinder (10) side is fixedly connected with
The end of the arm bar (15), the arm bar (15) by downwardly convex probe and is fixed on the pedestal (1)
The detection face contact of first force snesor (16)；First force snesor (16) is for detecting the arm bar (15) end pair
The pressure that first force snesor (16) generates, to carry out the measurement of torque；
The data acquisition device further includes the second force snesor being connected between first rotating cylinder (10) and supporting table (6)
(11), for detecting the Tensile or Compressive Loading of the sample (20).
2. combined horizontal testing stand according to claim 1, it is characterised in that: the tension and compression component includes at least retarder
(2), the first rocking bar (17), spiral handspike (7), the second plummer (3) and axial force changeover bobbin (8)；
The retarder (2) and the second plummer (3) are fixedly mounted on the pedestal (1), and the spiral handspike (7) runs through institute
The middle part of retarder (2) is stated, first rocking bar (17) is mounted on the retarder (2), for driving retarder (2) to adjust
The spiral handspike (7) generates axial displacement；The axial force changeover bobbin (8) is mounted in the middle part of second plummer (3), and
Second plummer (3) is only in radial constraint axial force changeover bobbin (8)；Partition is equipped in the axial force changeover bobbin (8)
(81), the end of the spiral handspike (7) is protruded into the axial force changeover bobbin (8) and is connect with the partition (81), with band
It moves the axial force changeover bobbin (8) and generates axial displacement.
3. combined horizontal testing stand according to claim 2, it is characterised in that: the torsion component includes rotating mechanism
(4), the second rotating cylinder (9), the second rocking bar (18), shaft (13) and thrust bearing (14)；
The rotating mechanism (4) is fixed on the pedestal (1), and second rotating cylinder (9) is mounted on the rotating mechanism (4)
Middle part, second rocking bar (18) are mounted on the rotating mechanism (4), described in being driven by the rotating mechanism (4)
Second rotating cylinder (9) rotation；Described second rotating cylinder (9) one end is fixed with the shaft (13), and the shaft (13) runs through the axis
Axial synchronous shift is realized to power changeover bobbin (8), and by thrust bearing (14) and the axial force changeover bobbin (8)；It is described
The fixed fixture (19) of second rotating cylinder (9) other end, for driving the fixture (19) to rotate and/or generating axial displacement.
4. combined horizontal testing stand according to claim 3, it is characterised in that: the data acquisition device further includes installation
In the shaft-position encoder (12) for rotating freely end of the shaft (13), the shaft-position encoder (12) is for acquiring sample
Torsion angle data.
5. a kind of material properties test system based on combined horizontal testing stand, which is characterized in that including in such as claim 1-4
Described in any item combined horizontal testing stands (100) and data processing equipment (200)；
The data processing equipment (200) connect with the data acquisition device (110) of the combined horizontal testing stand (100), uses
It is handled in the data of the Tensile or Compressive Loading and/or torque that are acquired to the data acquisition device (110).
6. material properties test system according to claim 5, which is characterized in that data processing equipment (200) In
When the data of the torque of acquisition device (110) acquisition are handled based on the data, it is calculated by the following formula torque M:
M=L × F；
Wherein L is to swear at a distance from the impetus to the first rotating cylinder (10) central axis of the first force snesor (16) on arm bar (15)
Amount；F is the vectorial force of the first force snesor (16) acquisition.
7. material properties test system according to claim 5 or 6, which is characterized in that the data processing equipment (200)
It is carried out in real time by the variation calculated machine virtual instrument technology real-time measurement, record a variety of load in sample, and by assay surface
It has been shown that, to obtain final experimental result.
8. a kind of material performance test method based on combined horizontal testing stand of any of claims 1-4, special
Sign is, comprising:
Loaded load step applies Tensile or Compressive Loading and/or torsional load to test specimen by loading device；
Data collection steps acquire the Tensile or Compressive Loading of sample and/or the data of torque by data acquisition device.
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