CN106404608A - Lubrication interface sum frequency signal measuring device and method of measuring friction chemical properties - Google Patents
Lubrication interface sum frequency signal measuring device and method of measuring friction chemical properties Download PDFInfo
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- CN106404608A CN106404608A CN201610775652.1A CN201610775652A CN106404608A CN 106404608 A CN106404608 A CN 106404608A CN 201610775652 A CN201610775652 A CN 201610775652A CN 106404608 A CN106404608 A CN 106404608A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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Abstract
The invention relates to a lubrication interface sum frequency signal measuring device. The device comprises a prism frame displacement adjusting mechanism, a prism frame, a hemi-spherical segment prism and a movable ball. The prism frame is arranged on the prism frame displacement adjusting mechanism. The hemi-spherical segment prism is arranged on the prism frame. The movable ball can rotate or swing. The prism frame displacement adjusting mechanism can be used for adjusting the height of the prism frame and the parallelism of the prism frame relative to the horizontal plane so as to further adjust the height of the hemi-spherical segment prism and the parallelism of the hemi-spherical segment prism relative to the horizontal plane. In this way, the hemi-spherical segment prism is enabled to be in contact with the movable ball. The movable ball and the hemi-spherical segment prism together form a friction pair. In addition, the invention also relates to a method for the on-line measurement of friction chemical properties on a lubrication interface.
Description
Technical field
The present invention relates to a kind of experimental provision and method, under more particularly, to a kind of lubrication boundary condition friction process and frequency
Signal on-line measurement device and the method for measurement lubrication interface friction chemical property.
Background technology
Interfacial phenomenon is closely related with nature, and Interface Study contacts closely with many Physico-Chemical Problems, Interface Study
It is used in fields such as material science, physical chemistry, analytical chemistry, polymer chemistry, environmental protection and petrochemical industries.Lubrication
Interface can occur chemical change in friction process median surface molecule, and friction process has great importance for Interface Study.Mesh
Front had some Interface Study means, such as mechanics, optics, electrochemical method, and KPT Scatter, X-ray diffraction technology
Deng, these methods need to carry out under vacuum mostly, and need change sample surfaces state, mechanics method such as surface is opened
Power, Contact-angle measurement are although will appreciate that the macroscopic property of gas-liquid interface and solid liquid interface, but cannot divide their microcosmic
Sub-information.Above experimental technique is restricted by various different conditions, and Peace Park is as non-linear optical methods,
There is interface selective and the interfacial monolayer sensitivity of uniqueness, obtain interfacial molecular information beneficial to analysis measurement signal.
Peace Park can by light intensity, phase place, polarization measurement provide the orientation at interface for the molecule, interface is divided
The information of the aspects such as sub- density, molecular vibration peak pattern ownership and dynamics.But and frequency signal is very faint, needs to design one
Kind of experimental provision, under measurement lubrication boundary condition friction process and frequency signal.
Content of the invention
In view of this, it is necessory to provide device and the measurement lubrication interface with frequency signal in a kind of measurement dynamical system
The method of tribochemistry performance.
A kind of lubrication interface and frequency signal measurement apparatus, it includes:One prism holder displacement governor motion, a prism holder, one
Hemisphere truncation mirror and a movable ball.Described prism holder is arranged at described prism holder displacement governor motion, described hemisphere truncation mirror
It is arranged at described prism holder, described movable ball can rotate or swing.Described prism holder displacement governor motion can adjust described
The height of prism holder and the depth of parallelism of this prism holder and horizontal plane, and then adjust the height of described hemisphere truncation mirror and be somebody's turn to do half
The depth of parallelism of segment prism and horizontal plane, makes described hemisphere truncation mirror contact with described movable ball, described movable ball with described
Hemisphere truncation mirror constitutes friction pair.
A kind of method of measurement tribochemistry performance, it comprises the following steps:One lubrication interface and frequency signal measurement are provided
Device, in this lubrication interface and frequency signal measurement apparatus, ball and hemisphere truncation mirror form friction pair;Two bundles with display system
Light from the periphery vertical incidence of described hemisphere truncation mirror, converges at the contact point of described hemisphere truncation mirror and movable ball respectively,
Thus producing and frequency light;The described periphery vertical exit with frequency light through described hemisphere truncation mirror and the reflection of subsequent reflection mirror are laggard
Enter monochromator, for analyzing the chemical change producing in friction process.
Compared with prior art, the lubrication interface that the present invention provides and frequency signal measurement apparatus achieve in friction process
Movable ball and the exact contact of hemisphere truncation mirror;Hemisphere truncation mirror had both provided immobile interface, make light vertical incidence again it is ensured that
The total reflection in interface for the incident light, enhances the energy of light thus strengthening and frequency signal;Achieve in friction process and frequency
The on-line measurement of signal.In addition, the present invention adopts Peace Park method, with infrared light and visible ray as incident light, two bundles
Light, in the overlapping generation in lubrication interface and frequency signal, has interface selective and the interfacial monolayer sensitivity of uniqueness, is beneficial to
Analysis measurement signal obtains interfacial molecular information.
Brief description
Fig. 1 is the perspective view lubricating interface and frequency signal measurement apparatus that embodiment of the present invention provides.
Fig. 2 is the top view lubricating interface and frequency signal measurement apparatus that embodiment of the present invention provides.
Fig. 3 is the side view lubricating interface and frequency signal measurement apparatus that embodiment of the present invention provides.
Fig. 4 is the schematic diagram of the stereochemical structure of hemisphere truncation mirror that embodiment of the present invention provides.
Fig. 5 is the experimental principle figure that the measurement that embodiment of the present invention provides lubricates interface and frequency signal.
Main element symbol description
Sliding interface and the measurement apparatus of frequency signal | 1 |
Prism holder displacement governor motion | 10 |
Prism holder | 11 |
Hemisphere truncation mirror | 12 |
Vertical displacement adjusts platform | 13 |
Vertical fixing rod frame | 14 |
Prism holder horizontal displacement adjustment unit | 16 |
Height adjustment knob | 17 |
Movable ball | 18 |
Microscope | 19 |
Lubricant | 20 |
First prism holder | 110 |
Second prism holder | 111 |
First horizontal bridge | 112 |
First fixing device | 113 |
First locking device | 114 |
Second horizontal bridge | 115 |
Second fixing device | 116 |
Second locking device | 117 |
First platform | 161 |
Second platform | 162 |
Knob | 163 |
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments, to the present invention provide lubrication interface and frequency signal measurement apparatus make into
The detailed description of one step.
Lubrication interface and frequency signal measurement apparatus include prism holder displacement governor motion, prism holder, hemisphere truncation mirror and
Movable ball.Described hemisphere truncation mirror is arranged at described prism holder, and described prism holder is arranged at described prism holder displacement governor motion,
This prism holder displacement governor motion can adjust the height of described prism holder and the depth of parallelism of this prism holder and horizontal plane, and then
Adjust height and this hemisphere truncation mirror and the depth of parallelism of horizontal plane of described hemisphere truncation mirror, make described hemisphere truncation mirror and institute
State movable ball to contact.
The concrete structure of lubrication interface and frequency signal measurement apparatus refers to Fig. 1 to Fig. 3, lubrication interface and frequency signal measurement
Device 1 includes:Prism holder displacement governor motion 10, prism holder 11, hemisphere truncation mirror 12 and movable ball.Described prism holder displacement
Governor motion 10 include vertical displacement adjust platform 13, vertical fixing rod frame 14, prism holder horizontal displacement adjustment unit 16 and
Height adjustment knob 17(Not shown).
Described vertical displacement adjusts platform 13 and can adopt scissor lift platform, drives this vertical displacement to adjust platform 13 manually
Lifting, naturally it is also possible to be the lifting platform of other forms, lifts as long as enabling this vertical displacement and adjusting platform 13.
Described vertical fixing rod frame 14 includes the first vertical fixing rod frame 141 and the second vertical fixing rod frame 142.Described rib
Mirror holder horizontal displacement adjustment unit 16 includes the first platform 161, the second platform 162 and is arranged in described first platform 161 simultaneously
The multiple knobs 163 contacting with described second platform 162.Described first platform 161 is arranged by the first vertical fixing rod frame 141
Adjust platform 13 in described vertical displacement, described second platform 162 is arranged at the multiple knobs being arranged in described first platform 161
163.Described second vertical fixing rod frame 142 is fixed on described second platform 162.Described height adjustment knob 17 is arranged at described
Second vertical fixing rod frame 142, can adjust the height of described vertical fixing rod frame 14.
Described prism holder 11 is made up of the first prism holder 110 and the second prism holder 111, and described first prism holder 110 includes
First horizontal bridge 112, the first fixing device 113 and the first locking device 114, this first fixing device 113 is arranged at institute
State one end of the first horizontal bridge 112, the other end of this first horizontal bridge 112 is fixed on institute by the first locking device 114
State the second vertical fixing rod frame 142.Described second prism holder 111 includes the second horizontal bridge 115, the second fixing device 116 with
And second locking device 117, this second fixing device 116 is arranged at one end of the described second horizontal bridge 115, and this is second horizontal
The other end of bridge 115 is fixed on described second vertical fixing rod frame 142 by the second locking device 117.And, described first
Fixing device 113 and the second fixing device 116 are oppositely arranged in vertical direction, for described hemisphere truncation mirror 12 is fixed on it
In.Described first prism holder 110 and the second prism holder 111 are adjustable in the position of described second vertical fixing rod frame 142, so,
Hemisphere truncation mirror 12 of different sizes can be clamped by this prism holder 11.
Described movable ball is by a support device(Not shown), specifically this movable ball can be arranged on three potteries
On bearing, supported by this three ceramic bearings, and this movable ball one end be connected to connecting shaft, this connecting shaft is connected to power transmission shaft,
This power transmission shaft is connected to motor by shaft coupling.Under the driving of described motor, described movable ball can rotate or swing.
All can be adjusted by adjusting described vertical displacement regulation platform 13, height adjustment knob 17 or described prism holder 11
The height of described hemisphere truncation mirror 12, realizes the contact with described movable ball of described hemisphere truncation mirror 12.
Described hemisphere truncation mirror 12 is fixing by described first fixing device 113 and the second fixing device 116, by adjustment
The some knobs 163 being arranged in multiple knobs 163 of described first platform 161 can adjust described second platform 162 and water
The depth of parallelism of plane, and then adjust bottom surface and the plane-parallel of described hemisphere truncation mirror 12.
Described movable ball and described hemisphere truncation can be realized by controlling described lubrication interface and frequency signal measurement apparatus 1
Mirror 12 contacts, and drives under described movable ball rotation or swing, movable ball and described hemisphere truncation mirror 12 after motor rotates
Surface constitutes friction pair.
Described hemisphere truncation mirror 12 is half segment quartz prism of designed, designed processing.See also Fig. 4, so-called hemisphere
Truncation mirror 12 be one and half prismospheres top cut down by plane after prism.Described hemisphere truncation mirror 12 include upper surface, under
Surface and be arranged at the periphery between described upper and lower surface.Described upper and lower surface can parallel can also
Not parallel.Preferably, described upper and lower surface is parallel, and the diameter proportion of upper and lower surface is 1:2.Described first
Fixing device 113 is contacted with described upper and lower surface respectively with the second fixing device 116, and described hemisphere truncation mirror 12 is pressed from both sides
Hold wherein.
It is appreciated that described lubrication interface and frequency signal measurement apparatus 1 may further include a microscope 19, this is micro-
The convenient coincidence observing luminous point of mirror 19.
The embodiment of the present invention also provides a kind of method that on-line measurement lubricates interface friction chemical property.
First, a kind of foregoing lubrication interface and frequency signal measurement apparatus 1 are provided.Refer to Fig. 5, with hemisphere truncation
Mirror 12 and movable ball 18 as friction pair, between be added with lubricant 20.The lower surface of hemisphere truncation mirror 12 is parallel to water
Plane is placed, and hemisphere truncation mirror 12 contacts with movable ball 18, then starts motor, and movable ball 18 obtains rotating speed, movable ball 18 He
Friction is produced between hemisphere truncation mirror 12.Adjust the position of hemisphere truncation mirror 12 and movable ball 18, make hemisphere truncation mirror 12 and can
Dynamic ball 18 is placed exactly in the convergent point of infrared light and visible ray.With the infrared light of display system and visible ray respectively from hemisphere truncation mirror
Periphery vertical incidence that is to say, that and the infrared light of display system and visible ray be incident to the centre of sphere of described hemisphere truncation mirror,
Converge at the contact point of hemisphere truncation mirror 12 and movable ball 18, the optical path difference of two-beam is 0 it is ensured that the time is upper overlapping simultaneously.
Thus produce frequency be two-beam frequency sum and frequency light, by the periphery vertical exit of hemisphere truncation mirror 12, after warp
Speculum is reflected into monochromator, for the chemical change producing in real-time analysis friction process.
On-line measurement lubricates the operation principle of the method for interface friction chemical property:Lubrication interface friction is tested chemically
Can characterize, using Peace Park method, with infrared light and visible ray as incident light, two-beam is in the overlapping product in lubrication interface
Life and frequency signal, measurement Peace Park is to analyze friction process median surface molecular information.When movable ball 18 is same with motor
Axle rotates, and constitutes friction pair with hemisphere truncation mirror 12, forms lubrication interface after adding lubricant 20, according to record and frequency
Signal can be to lubricate the change of interfacial molecular in on-line checking movable ball 18 and hemisphere truncation mirror 12 friction process.
On-line measurement lubricates the operation principle of the method for interface friction chemical property:Lubrication interface friction is tested chemically
Can characterize, using Peace Park method, with infrared light and visible ray as incident light, two-beam is in the overlapping product in lubrication interface
Life and frequency signal, measurement Peace Park is to analyze friction process median surface molecular information.When movable ball 18 is same with motor
Axle rotates, and constitutes friction pair with hemisphere truncation mirror 12, forms lubrication interface after adding lubricant 20, according to record and frequency
Signal can be to lubricate the change of interfacial molecular in on-line checking movable ball 18 and hemisphere truncation mirror 12 friction process.
The lubrication interface that the present embodiment provides and frequency signal measurement apparatus can be realized:The essence of ball and prism in friction process
Contiguity is touched;The hemisphere truncation mirror of designed, designed both provided immobile interface, made light vertical incidence it is ensured that incident light is on boundary again
Total reflection at face, enhances the energy of light thus strengthening and frequency signal;Achieve the online survey with frequency signal in friction process
Amount.The present embodiment adopts Peace Park method, and with infrared light and visible ray as incident light, two-beam is in lubrication interface weight
Folded interface selective and the interfacial monolayer sensitivity producing and frequency signal, having uniqueness, obtains beneficial to analysis measurement signal
Interfacial molecular information.
In addition, those skilled in the art can also do other changes in present invention spirit, these are according to present invention spirit
The change done, all should be included in scope of the present invention.
Claims (10)
1. a kind of lubrication interface and frequency signal measurement apparatus, it includes:
One prism holder displacement governor motion;
One prism holder, this prism holder is arranged at described prism holder displacement governor motion;
Half segment prism, this hemisphere truncation mirror is arranged at described prism holder;
One movable ball, this movable ball can rotate or swing;
Described prism holder displacement governor motion can adjust the height of described prism holder and this prism holder is parallel with horizontal plane
Degree, and then adjust height and this hemisphere truncation mirror and the depth of parallelism of horizontal plane of described hemisphere truncation mirror, make described half segment
Prism is contacted with described movable ball, and described movable ball constitutes friction pair with described hemisphere truncation mirror.
2. lubrication interface as claimed in claim 1 and frequency signal measurement apparatus it is characterised in that:Described hemisphere truncation mirror is one
The top of individual half prismosphere cut down by plane after prism, this hemisphere truncation mirror includes upper surface, lower surface and is arranged at institute
State the periphery between upper and lower surface.
3. lubrication interface as claimed in claim 2 and frequency signal measurement apparatus it is characterised in that:Described upper and lower surface
Parallel, and the diameter proportion of upper and lower surface is 1:2.
4. lubrication interface as claimed in claim 2 and frequency signal measurement apparatus it is characterised in that:Described prism holder displacement is adjusted
Mechanism includes vertical displacement and adjusts platform, vertical fixing rod frame, prism holder horizontal displacement adjustment unit and height adjustment knob;
Described vertical fixing rod sets up and is placed in described vertical displacement regulation platform;Described prism holder is arranged at described vertical fixing rod frame,
Described prism holder horizontal displacement adjustment unit is arranged at described vertical fixing rod frame, for adjusting the flat of described prism and horizontal plane
Row degree;Described height adjustment knob is arranged at described vertical fixing rod frame, for adjusting the height of described prism.
5. lubrication interface as claimed in claim 4 and frequency signal measurement apparatus it is characterised in that:Described vertical fixing rod frame bag
Include the first vertical fixing rod frame and the second vertical fixing rod frame;Described prism holder horizontal displacement adjustment unit include the first platform,
Second platform and be arranged in described first platform the multiple knobs with described second contact with platform, described first platform passes through
First vertical fixing rod sets up and is placed in described vertical displacement and adjusts platform, and described second platform is arranged on that to be arranged in described first flat
Multiple knobs of platform;Described second vertical fixing rod frame is fixed on described second platform;Can be adjusted by adjusting some knobs
The bottom surface of described hemisphere truncation mirror and plane-parallel.
6. lubrication interface as claimed in claim 5 and frequency signal measurement apparatus it is characterised in that:Described prism holder is by the first rib
Described hemisphere truncation mirror is fixed by mirror holder and the second prism holder composition, this first prism holder and the second prism holder.
7. lubrication interface as claimed in claim 6 and frequency signal measurement apparatus it is characterised in that:Described first prism holder includes
First horizontal bridge, the first fixing device and the first locking device, this first fixing device is arranged at described first transverse bar
One end of frame, the other end of this first horizontal bridge is fixed on described second vertical fixing rod frame by the first locking device;Institute
State the second prism holder and include the second horizontal bridge, the second fixing device and the second locking device, this second fixing device is arranged
In one end of the described second horizontal bridge, the other end of this second horizontal bridge is fixed on described second by the second locking device
Vertical fixing rod frame;Described first fixing device and the second fixing device are oppositely arranged in vertical direction, for by described hemisphere
Truncation mirror is fixed.
8. lubrication interface as claimed in claim 6 and frequency signal measurement apparatus it is characterised in that:Described first fixing device and
Second fixing device is contacted with the upper and lower surface of described hemisphere truncation mirror respectively, and described hemisphere truncation mirror is fixed.
9. a kind of method of measurement tribochemistry performance, it comprises the following steps:
There is provided just like the lubrication interface described in claim 1~8 any one and frequency signal measurement apparatus, this lubrication interface and frequency
In signal measurement apparatus, ball and hemisphere truncation mirror form friction pair;
With the two-beam of display system respectively from the periphery vertical incidence of described hemisphere truncation mirror, converge at described hemisphere truncation mirror
With the contact point of movable ball, thus produce and frequency light;
Enter monochromator after the described periphery vertical exit with frequency light through described hemisphere truncation mirror and the reflection of subsequent reflection mirror, use
The chemical change producing in analysis friction process.
10. as claimed in claim 9 measurement tribochemistry performance method it is characterised in that:Described movable ball and described half
The contact zone of segment prism is added with lubricant.
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CN201610775652.1A CN106404608B (en) | 2016-08-31 | 2016-08-31 | Lubricating interface sum frequency signal measuring device and method for measuring tribochemical performance |
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CN106404608B CN106404608B (en) | 2019-12-20 |
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2016
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JP2008202993A (en) * | 2007-02-16 | 2008-09-04 | Toyohashi Univ Of Technology | Evanescent light emitting device |
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