CN106370539A - Testing device with controllable friction interface temperature and quick response function - Google Patents
Testing device with controllable friction interface temperature and quick response function Download PDFInfo
- Publication number
- CN106370539A CN106370539A CN201610835909.8A CN201610835909A CN106370539A CN 106370539 A CN106370539 A CN 106370539A CN 201610835909 A CN201610835909 A CN 201610835909A CN 106370539 A CN106370539 A CN 106370539A
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- Prior art keywords
- oil groove
- horizontal
- motor
- vertical
- quick response
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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
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
Abstract
Disclosed is a testing device with the controllable friction interface temperature and the quick response function. A clamping device is arranged above a machine frame, a horizontal reciprocating device is arranged below the machine frame, the testing device further comprises a temperature control device, an outlet of an oil tank is connected with an inlet of an oil groove through a liquid inlet pipe, and an outlet of the oil groove is connected with an inlet of the oil tank through a liquid drainage pipe, so that a circulation loop is formed, and a circulation pump is arranged on the liquid inlet pipe. A liquid medium is arranged inside the oil tank, and the oil tank is further provided with a heating device; an upper clamp is located above a lower clamp, and the upper clamp and the lower clamp are opposite vertically; the upper clamp is installed on a two-dimensional adjustable movable table, and a two-dimensional mechanical sensor is arranged between the upper clamp and the two-dimensional adjustable movable table; the lower clamp is fixed to an opening of the oil groove in a closed mode, and an outlet of the liquid inlet pipe led into the oil groove is aligned to a through hole; the oil groove is arranged on the horizontal reciprocating device which can drive the oil groove to horizontally reciprocate; the heating device of the oil tank, the circulation pump, the two-dimensional adjustable movable table and the horizontal reciprocating device are all connected with the control device.
Description
Technical field
The present invention relates to the assay device of a kind of frictional interface temperature-controllable and quick response.
Background technology
Tribology mainly includes the research fields such as friction, abrasion and lubrication, and fretting wear phenomenon is to lead to a large amount of mechanical energy
Loss, parts lost efficacy a major reason.According to estimates, the energy resource consumption of industrialized country about 30% is in component of machine
Friction, and annual almost account for the 1～2% of its gross national economy because of the economic loss that fretting wear causes, therefore, research
The friction and wear behavior of material has important economic and social profit, also the research topic of always scholars' extensive concern
One of.
The fretting wear of material is a kind of complicated phenomenon, not only relevant with the material performance of friction pair itself, but also
It is a progressive micro dynamic course with time varying characteristic, also have with many impacts in the Tribological Systems of place simultaneously
Close.The abrasion of material at present mainly has four kinds of common forms it may be assumed that abrasive wear, fatigue wear, adhesive wear and corrosion are ground
Damage.Adhesive wear is a kind of most common wear form, generally believes in Tribological Systems running at present, surface of friction pair
Frictional heat has material impact for adhesive wear form, but current friction wear test method and existing patent
Device is respectively provided with certain limitation.
Test method and its examination as a kind of sealing ring fretting wear of the patent notes of Patent No. cn103308410a
Experiment device, a kind of high temperature friction and wear testing machine of the patent notes of Patent No. cn103364296a and Patent No.
A kind of test device for high temperature friction wear of the patent notes of cn2499822, all discloses temperature controlled method, but these sides
Method all can only control Tribological Systems ambient temperature or medium temperature, and controls friction pair temperature using heat radiation method,
But in friction process, the thermally-induced local temperature rise that rubs can cause surface of friction pair temperature to be far above ring around friction pair
Border, using thermal-radiating heat-transferring method, friction pair surrounding cannot deliver heat to friction pair it is impossible to accurately control surface of friction pair
Temperature.
Frictional interface temperature fast response device disclosed in this patent, then be to transmit heat using the mode of conduction of heat, can
Farthest to realize friction pair local temperature close to design temperature, frictional interface temperature can be precisely controlled, be aligned
Really understand that the impact to material friction wear properties of friction pair frictional heat or friction pair temperature is significant, especially for viscous
Abrasion, the particularly impact of material surface transfer, even more disclose material friction micromechanism of damage, control or slow down adhesive wear
Key.
Content of the invention
In order to understand the frictional interface frictional heat and friction pair temperature impact to material polishing machine in Tribological Systems,
Overcome existing standard Tribological Test equipment cannot quick response surface of friction pair frictional heat and quickly maintain friction pair temperature steady
Fixed problem, the present invention proposes one kind and can accurately control surface of friction pair temperature, and the assay device of quick response.
The technical scheme is that
A kind of frictional interface temperature-controllable and the assay device of quick response, including frame, are provided with use above described frame
In the clamping device of clamping sample, be provided with below frame and drive the horizontal reciprocating movement device that rubbed of sample, also include to
Sample provides the attemperating unit of controllable temperature；
Attemperating unit includes fuel tank and oil groove, and oil groove is arranged in frame, and fuel-tank outlet passes through entering of feed tube and oil groove
Mouth is connected, and the outlet of oil groove is connected with fuel tank inlet by discharging tube, and to constitute closed circuit, and feed tube is provided with circulation
Pump；It is provided with liquid medium, fuel tank is additionally provided with the heater for keeping liquid medium constant temperature in fuel tank in fuel tank；Described feed liquor
Pipe and described discharging tube are all threadeded with oil groove；Under clamping device includes the upper fixture for fixing upper sample and is used for fixing
The lower clamp of sample, upper fixture is located at the top of lower clamp, and upper fixture is relative up and down with lower clamp；Upper fixture is arranged on can drive
Dynamic upper fixture vertically moves up and down and in the horizontal direction on the two-dimentional adjustable moving platform that moves left and right, and upper fixture and two
It is provided with the two-dimentional mechanics sensor for measuring frictional force between dimension adjustable moving platform；Lower clamp is airtight to be fixed on oil groove notch
On, lower clamp has through hole, and is passed through the outlet described through hole of be aligned of the feed tube in oil groove；
Oil groove is arranged on the horizontal reciprocating movement device that can drive oil groove horizontal reciprocating movement, with by oil groove and lower folder
Tool drives lower sample horizontal reciprocating movement；
The heater of fuel tank, circulating pump, two-dimentional adjustable moving platform, horizontal reciprocating movement device all with control device phase
Even.
Further, described horizontal reciprocating movement device includes being slided by the first motor, flywheel, connecting rod, the first slide block and first
The toggle of rail composition；The both sides of the first slide block are slidably disposed on the first slide rail, and the first slide rail is arranged on machine
On frame, the lower section of the first slide block is provided with the flywheel of level, and flywheel is fixed in the rotating shaft of the first motor, horizontally disposed connecting rod
One end is fixed on the first slide block bottom surface, and the other end is fixed on the upper surface of flywheel；First Motor drive flywheel turns, flywheel passes through
Connecting rod drives the first slide block along the first slide rail horizontal reciprocating movement；Oil groove is fixed on the top surface of the first slide block, the first motor
It is connected with control device.
Further, described two-dimentional adjustable moving platform includes vertical slipper, vertical guide rail, down-feed screw, motor vertical, water
Smooth block, horizontal guide rail, horizontal screw lead and horizontal motor；Motor vertical and horizontal motor are each attached in frame, vertical slipper
Along rack level setting, horizontal screw lead level is run through vertical slipper and is spirally connected with vertical slipper, and the bottom surface of vertical slipper is opened
There is horizontal guide rail, level is fixed with the cross sliding clock that can slide along horizontal guide rail, one end of horizontal screw lead and horizontal motor
Output shaft is connected, and is moved horizontally along horizontal guide rail with the top surface driving cross sliding clock；Upper fixture is fixed on the bottom of cross sliding clock
On face, two-dimentional mechanics sensor is fixed between cross sliding clock and upper fixture；Vertical guide rail, vertical slipper are vertically provided with frame
Rear portion be provided with the guide groove matching with vertical guide rail, vertical slipper is slidably disposed on vertical guide rail, down-feed screw
Upper end is connected with motor vertical, and the lower end of down-feed screw and vertical slipper are spirally connected, and horizontal motor and motor vertical all fill with controlling
Put connected.
Further, described circulating pump before and after be equipped with regulating valve.
Further, described liquid medium is water or oil.
Further, the through hole of the bottom side alignment lower clamp of described lower sample has counterbore, and the opening of counterbore is passed through with through hole phase
Logical, and the thickness of the bottom hole of counterbore is 1mm～2mm.
Further, the shape of described counterbore and through hole, size all same.
Further, it is provided with gasket seal in the middle of oil groove and lower clamp.
Further, the entrance of described oil groove and the outlet of oil groove are screwed hole, and described feed tube is in charge of and oil by four
The entrance of groove is spirally connected, and described discharging tube is spirally connected with the outlet of oil groove.
The present invention is that a kind of structure is simple, easy to operate, realizes temperature-controllable and the temperature of frictional interface using conduction of heat
Control can quick response and in process of the test Real-time and Dynamic gather and calculate coefficient of friction, can accurately analyze friction
The heat or surface of friction pair temperature assay device to material damage Evolution Characteristics and affecting laws.
The invention has the beneficial effects as follows:
Counterbore is opened up, the liquid medium of constant temperature is delivered to the lower section of lower sample by delivery pipe below lower sample, and directly
Wash away counterbore bottom hole, the temperature of liquid medium can directly influence the friction temperature of lower sample and upper sample frictional interface, from
And quick response frictional interface temperature, friction system frictional interface temperature can accurately be controlled so that friction-wear test can be more
Accurate reflection friction pair temperature or contact surface frictional heat are to material surface Damage Evolution characteristic and affecting laws.
The present invention can meet the secondary multiple contact forms of reciprocating friction (line-face, surface-to-surface, point-face) combination, all can be quick
Response frictional interface temperature, makes friction pair local temperature close to design temperature；The control device of the present invention can accurately control and rubs
Wipe the frictional force between secondary fretting wear under the conditions of specific speed, displacement, temperature and load etc., and energy real-time monitoring friction pair
Change, for controlling and the abrasion that material causes can be slowed down because of friction, and improve Tribological Test equipment provide reliable
Data and experience.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of lower sample.
Fig. 3 is the structural blast of lower clamp, pad, oil groove.
Fig. 4 is the structural representation of horizontal reciprocating movement device.
In Fig. 1, a represents the power supply of circulating pump.
Specific embodiment
As illustrated, the assay device of a kind of frictional interface temperature-controllable and quick response, including frame 29, described frame
It is provided with the clamping device for clamping sample above in the of 29, below frame 29, be provided with the horizontal reciprocating movement driving sample to be rubbed
Device, also includes providing the attemperating unit of controllable temperature to sample；
Attemperating unit includes fuel tank 2 and oil groove 7, and oil groove 7 is arranged in frame 29, and fuel tank 2 outlet is by feed tube 5 and oil
The entrance of groove 7 is connected, and the outlet of oil groove 7 is connected with fuel tank 2 entrance by discharging tube, to constitute closed circuit, and on feed tube 5
It is provided with circulating pump 4；Be provided with liquid medium 1 in fuel tank 2, fuel tank 2 be additionally provided with for keep liquid medium 1 constant temperature in fuel tank 2 plus
Thermal；Described feed tube 5 and described discharging tube are all threadeded with oil groove 7；Clamping device is included for fixing upper sample 31
Upper fixture 32 and the lower clamp 12 for fixing lower sample 14, upper fixture 32 is located at the top of lower clamp 14, and upper fixture 32
Relative about 12 with lower clamp；Upper fixture 32 is arranged on and upper fixture 32 can be driven vertically to move up and down and in the horizontal direction
On the two-dimentional adjustable moving platform moving left and right, and it is provided with for measuring frictional force between upper fixture 32 and two-dimentional adjustable moving platform
Two-dimentional mechanics sensor 24；Lower clamp 12 is airtight to be fixed on oil groove 7 notch, lower clamp 12 has through hole 121, and is passed through oil
The outlet 9 of the feed tube 5 in groove 7 is directed at described through hole 121；
Oil groove 7 is arranged on the horizontal reciprocating movement device that can drive oil groove 7 horizontal reciprocating movement, with by oil groove 7 He
Lower clamp 12 drives lower sample 14 horizontal reciprocating movement；
The heater of fuel tank, circulating pump 4, described two dimension mechanics sensor 24, two-dimentional adjustable moving platform, horizontal reciprocating fortune
Dynamic device is all connected with control device, the heater of control device control fuel tank, circulating pump 4, described two dimension mechanics sensor
24th, two-dimentional adjustable moving platform, the start and stop of horizontal reciprocating movement device, the temperature adjustment controlling heater, gathered data count
Calculate coefficient of friction.
Described horizontal reciprocating movement device is included by the first motor 28, flywheel, connecting rod, the first slide block 30 and the first slide rail 25
The toggle of composition；The both sides of the first slide block 30 are slidably disposed on the first slide rail 25, and the first slide rail 25 is arranged
In frame 29, the lower section of the first slide block 30 is provided with the flywheel of level, and flywheel is fixed in the rotating shaft of the first motor 28, level
Connecting rod 27 one end of setting is fixed on the first slide block 30 bottom surface, and the other end is fixed on the upper surface of flywheel；First motor 28 drives
Flywheel turns, flywheel drives the first slide block 30 along the first slide rail 25 horizontal reciprocating movement by connecting rod 27；Oil groove 7 is fixed on
On the top surface of one slide block 30, the first motor 28 is connected with control device.
Described two-dimentional adjustable moving platform include vertical slipper 23, vertical guide rail 22, down-feed screw 19, motor vertical 20,
Cross sliding clock 18, horizontal guide rail 16, horizontal screw lead 17 and horizontal motor 15；Motor vertical 20 and horizontal motor 15 are each attached to machine
On frame 29, vertical slipper 23 is horizontally disposed with along frame 29, and horizontal screw lead 17 level runs through vertical slipper 23 and vertical slipper
23 are spirally connected, and the bottom surface of vertical slipper 23 has horizontal guide rail 16, are fixed with the water that can slide along horizontal guide rail 16 on horizontal 17
Smooth block 18, one end of horizontal screw lead 17 is connected with the output shaft of horizontal motor 15, with drive the top surface of cross sliding clock 18 along
Horizontal guide rail 16 moves horizontally；Upper fixture 32 is fixed on the bottom surface of cross sliding clock 18, and two-dimentional mechanics sensor 24 is fixed on water
Between smooth block 18 and upper fixture 32；Vertical guide rail 22 is vertically provided with frame 29, the rear portion of vertical slipper 23 be provided with vertical
The guide groove that guide rail 22 matches, vertical slipper 23 is slidably disposed on vertical guide rail 22, the upper end of down-feed screw 19 with hang down
Straight motor 20 is connected, and the lower end of down-feed screw 19 is spirally connected with vertical slipper 23, horizontal motor 15 and motor vertical 20 all with control
Device is connected, and control device controls the start and stop of horizontal motor 15 and motor vertical 20.
It is equipped with regulating valve 3,6 before and after described circulating pump 4.
Described liquid medium 1 is water or oil.
The through hole 121 of the bottom side alignment lower clamp 12 of described lower sample 14 has a counterbore 141, the opening of counterbore 141 with logical
Hole 121 connects, and the thickness of the bottom hole of counterbore 141 is 1mm～2mm.
The shape of described counterbore 141 and through hole 121, size all same.
It is provided with gasket seal 11 in the middle of oil groove 7 and lower clamp 12.
Further, the described entrance of oil groove 7 and the outlet of oil groove are screwed hole, described feed tube 5 by four be in charge of with
The entrance of oil groove 7 is spirally connected, and described discharging tube is spirally connected with the outlet of oil groove 7.
The center of described lower clamp offers the rectangular or circular through hole in cross section, and the size of through hole is according to lower examination
Sample determines: the cross-sectional area of through hole is necessarily less than the cross-sectional area of lower sample so that lower sample can seal through hole, and lower clamp is same
When undertake oil groove closure effect, sealed using gasket seal 11 in the middle of oil groove and lower clamp.
Feed tube is in charge of by four and is connected with oil groove, and the both sides of described oil groove offer is in charge of 8,10 screw threads penetrating for four
Hole.The outlet 9 of feed tube 5, that is, four are in charge of 8 outlet 9 and are directed at described through hole 121 and counterbore 141, the liquid in fuel tank 2
Medium 1 washes away to lower sample 14, and the frictional heat of lower sample and upper sample frictional interface can be passed by liquid medium by heat
The mode led timely sheds, thus quick response frictional interface temperature, can accurately control friction system frictional interface temperature
Degree.
The using method of the present invention is:
1) lower test specimen is threaded connection and is fixed on lower clamp, and the central axial alignment lower clamp of the blind hole of lower test specimen
Through hole central shaft；
2) upper test specimen is fixed in upper fixture, is such as bonded in upper fixture, the position of the two-dimentional adjustable moving platform of adjustment makes
Sample must be gone up and be adjacent to lower sample；
3) liquid medium in heated at constant temperature fuel tank is to predetermined temperature；Liquid medium through delivery pipe through circulating pump to oil groove pump
Enter, the liquid medium 1 in fuel tank 2 is directly washed away to lower sample 14；
4) open horizontal reciprocating movement device, horizontal reciprocating movement device drives oil groove horizontal reciprocating movement, drive lower examination
Sample horizontal reciprocating movement, lower sample and upper sample fretting wear；
6) two-dimentional mechanics sensor dynamic acquisition and analyze in process of the test in real time upper test specimen and lower test specimen between method
To load and tangential force, and transfer data to control device, control device one side is entered to the position of two-dimentional adjustable moving platform
It is ensured that remaining constant normal load between upper and lower test specimen, another aspect control device controls level to row real-time feedback control
Reciprocator makees periodic reverse motion with the shift reciprocately setting and frequency, makes upper and lower test specimen produce reciprocal friction
Abrasion, and the coefficient of friction between test specimen and lower test specimen counted in by synchrometer.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept, the protection of the present invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (9)
1. a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: include frame, in described frame
Side is provided with the clamping device for clamping sample, is provided with the horizontal reciprocating movement device driving sample to be rubbed below frame,
Also include providing the attemperating unit of controllable temperature to sample；
Attemperating unit includes fuel tank and oil groove, and oil groove is arranged in frame, and fuel-tank outlet passes through the entrance phase of feed tube and oil groove
Even, the outlet of oil groove is connected with fuel tank inlet by discharging tube, and to constitute closed circuit, and feed tube is provided with circulating pump；Oil
It is provided with liquid medium, fuel tank is additionally provided with the heater for keeping liquid medium constant temperature in fuel tank in case；Described feed tube and
Described discharging tube is all threadeded with oil groove；
Clamping device includes the upper fixture for fixing upper sample and the lower clamp for fixing lower sample, and upper fixture is located at lower folder
The top of tool, and upper fixture is relative up and down with lower clamp；Upper fixture is arranged on and upper fixture can be driven vertically to move up and down
On the two-dimentional adjustable moving platform moving left and right in the horizontal direction, and it is provided with for surveying between upper fixture and two-dimentional adjustable moving platform
The two-dimentional mechanics sensor of amount frictional force；Lower clamp is airtight to be fixed on oil groove notch, lower clamp has through hole, and is passed through oil
The outlet of the feed tube in groove is directed at described through hole；
Oil groove is arranged on the horizontal reciprocating movement device that can drive oil groove horizontal reciprocating movement, with by oil groove and lower clamp band
Dynamic lower sample horizontal reciprocating movement；
The heater of fuel tank, circulating pump, two-dimentional adjustable moving platform, horizontal reciprocating movement device are all connected with control device.
2. as claimed in claim 1 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
State the crank connecting link machine that horizontal reciprocating movement device includes being made up of the first motor, flywheel, connecting rod, the first slide block and the first slide rail
Structure；The both sides of the first slide block are slidably disposed on the first slide rail, and the first slide rail is arranged in frame, the lower section of the first slide block
It is provided with the flywheel of level, and flywheel is fixed in the rotating shaft of the first motor, horizontally disposed connecting rod one end is fixed on the first slide block
Bottom surface, the other end is fixed on the upper surface of flywheel；First Motor drive flywheel turns, flywheel drives the first slide block edge by connecting rod
The first slide rail horizontal reciprocating movement；Oil groove is fixed on the top surface of the first slide block, and the first motor is connected with control device.
3. as claimed in claim 2 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
The two-dimentional adjustable moving platform stated include vertical slipper, vertical guide rail, down-feed screw, motor vertical, cross sliding clock, horizontal guide rail,
Horizontal screw lead and horizontal motor；Motor vertical and horizontal motor are each attached in frame, and vertical slipper is arranged along rack level,
Horizontal screw lead level is run through vertical slipper and is spirally connected with vertical slipper, and the bottom surface of vertical slipper has horizontal guide rail, in level
It is fixed with the cross sliding clock that can slide along horizontal guide rail, one end of horizontal screw lead is connected with the output shaft of horizontal motor, to drive
The top surface of cross sliding clock moves horizontally along horizontal guide rail；Upper fixture is fixed on the bottom surface of cross sliding clock, two-dimentional mechanics sensing
Device is fixed between cross sliding clock and upper fixture；Vertical guide rail is vertically provided with frame, the rear portion of vertical slipper be provided with vertical
The guide groove that guide rail matches, vertical slipper is slidably disposed on vertical guide rail, the upper end of down-feed screw and motor vertical phase
Even, the lower end of down-feed screw and vertical slipper are spirally connected, and horizontal motor is all connected with control device with motor vertical.
4. as claimed in claim 3 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
That states circulating pump is equipped with regulating valve in front and back.
5. as claimed in claim 4 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
Stating liquid medium is water or oil.
6. as claimed in claim 5 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
The through hole stating the bottom side alignment lower clamp of lower sample has counterbore, and the opening of counterbore and through hole connect, and the bottom hole of counterbore
Thickness is 1mm～2mm.
7. as claimed in claim 6 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
State shape, the size all same of counterbore and through hole.
8. as claimed in claim 7 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: oil
It is provided with gasket seal in the middle of groove and lower clamp.
9. as claimed in claim 8 a kind of frictional interface temperature-controllable and quick response assay device it is characterised in that: institute
The outlet of the entrance and oil groove of stating oil groove is screwed hole, and described feed tube is in charge of by four and is spirally connected with the entrance of oil groove, described
Discharging tube is spirally connected with the outlet of oil groove.
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| CN201610835909.8A CN106370539B (en) | 2016-09-21 | 2016-09-21 | Friction interface temperature controllable and quick response test device |
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| CN201610835909.8A CN106370539B (en) | 2016-09-21 | 2016-09-21 | Friction interface temperature controllable and quick response test device |
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| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN107063908B (en) * | 2017-04-11 | 2019-09-17 | 西南交通大学 | A kind of magnetic environment tribological test device in controllable horizontal direction magnetic field |
| CN108398317A (en) * | 2018-05-21 | 2018-08-14 | 中国石油天然气集团有限公司 | A kind of Wet-dry controllable temperature friction wear testing machine |
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| CN106370539B (en) | 2023-05-23 |
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