CN107449732A - A kind of rubber friction experimental machine and experimental method - Google Patents
A kind of rubber friction experimental machine and experimental method Download PDFInfo
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- CN107449732A CN107449732A CN201710632278.4A CN201710632278A CN107449732A CN 107449732 A CN107449732 A CN 107449732A CN 201710632278 A CN201710632278 A CN 201710632278A CN 107449732 A CN107449732 A CN 107449732A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention discloses a kind of rubber friction experimental machine and method, solves the problems, such as that existing abrasion tester can not carry out rubber friction research under conditions of high temperature, high pressure, moistening.Described rubber friction experimental machine includes pedestal, rubber binding, rubber mobile range detection means, rubber pressure loading device, rubber friction force loading device, signal acquisition and processing apparatus, described rubber binding is fixed on pedestal, rubber mobile range detection means is directly or indirectly fixed on pedestal, rubber pressure loading device, rubber friction force loading device is fixed on housing, housing is fixed on pedestal, signal acquisition and processing apparatus and rubber binding, rubber mobile range detection means, rubber pressure loading device, the control circuit connection of rubber friction force loading device, its is reasonable in design, trial stretch is wide, with being hardly damaged, the advantages of experimental data measurement is accurate.
Description
Technical field
The invention belongs to high polymer material performance detection field, is related to a kind of high polymer material frictional property based on rubber
The detection of energy, particularly says, refers to a kind of tester for friction between and experimental method.
Background technology
Nowadays, because rubber is the high-elastic characteristic of tool and the reversible macromolecule polymer material of deformation, therefore rubber compares
In other most of solid-state materials, its frictional behavior can be more special.In addition, rubber contains very important interior friction, this
Characteristic causes the real contact area of rubber that non-linear relation is presented between being in contact with it pressure loading.Therefore, study in difference
External environmental condition detects to rubber friction performance, and this production and processing and rubber for rubber is in real life
Using all significant.It is many to influence the factor of the friction especially sliding friction of rubber, such as：Material character, slip
Speed, temperature, contact surface dry and wet degree and surface roughness.For the high polymer material based on rubber, in daily life
Most common tire, research show：The friction of tire is generally divided into three kinds of sliding frictions, rolling friction and lubrication friction.It is right
Similar in the sliding friction of tire and the sliding friction model of niggerhead, sliding friction is mainly due to road surface and tire
Caused by the hysteresis for adhering to node and tire substrate between contact surface, and with adhesion friction on road surface that is smooth and drying
Based on power, in addition also by road surface condition and tire tread sliding speed, local temperature condition and contact surface situation because
Element influences；On the road surface of humidity, adhesion friction power will appear from largely declining, mainly to lag the effect of frictional force
Based on.It follows that under physical condition high polymer material frictional behaviour by temperature, contact surface situation, pressure condition and its
The influence of his many factors, therefore constantly flexibly adjustment external condition goes to detect high polymer material frictional property according to actual state
It can have important practical significance.
According to investigations, experimental facilities such as permanent towed frictiograph, the constant speed type for studying rubber friction characteristic in the prior art rubs
Wiping instrument, pendulum type friction instrument still has certain limitation, such as friction media is single, is not easy to change load application.Current all kinds of rubbers
Glue frictional testing machine, mainly to determine rubber friction coefficient as main target, it is unsuitable for rubber friction and pressure, temperature, contacts
The research contents of face dry and wet degree.Therefore the scientific research mission that a kind of this kind of detection device is those skilled in the art is developed.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, seeking to design and provide one kind being capable of effectively mould
Intend experimental facilities and the experimental method being detected and analyzed under real working condition to the frictional behaviour of rubber-like high polymer material, solution
Existing detection technique of having determined can not under conditions of high temperature, high pressure, moistening carry out rubber friction research the problem of.Wherein experimental machine
Reasonable in design, parts adjustment is easy, and trial stretch is wide, has rectangle friction head, it is convenient that sample handling are changed, not rapid wear
Bad, experimental data measures the advantages of accurate.In addition the result of the test that the experimental method is surveyed has good with actual friction uniformity
The advantages of.
To achieve these goals, the mentality of designing of invention is that the high polymer material in practical application based on rubber exists
The emery wheel that friction situation under different operating environment is reduced to sample material and the different surfaces specification of quality contacts with each other friction
Detection model；The device of design can not only directly reflect friction feelings of the sample with contact surface under the effect of different pressures load
Shape, while the coefficient of friction of contact friction model at different temperatures can also be determined.In addition the rubber friction inspection designed
Sample material can easily be determined with contacting the friction law of model room by surveying device, and can obtain the coefficient of friction of material with
And relation curve.By changing temperature, the external condition of Humid Status and pressure loading determines corresponding coefficient of friction, be with
The production of high polymer material based on rubber provides intuitive and reliable technical parameter with application, expands product so as to effectively improve
The quality of production and application.
The purpose of the present invention is achieved through the following technical solutions：A kind of rubber friction experimental machine includes pedestal 1, rubber
Fixing device, rubber mobile range detection means, rubber pressure loading device, rubber friction force loading device, at signal acquisition
Device is managed, described rubber binding is fixed on pedestal 1, and rubber mobile range detection means is directly or indirectly fixed on base
On seat 1, rubber pressure loading device, rubber friction force loading device are fixed on housing 29, and housing is fixed on pedestal 1, letter
Number acquisition processing device and rubber binding, rubber mobile range detection means, rubber pressure loading device, rubber friction power
The control circuit connection of loading device, to gather pressure, the rubber that the heating-up temperature of rubber, rubber mobile range, rubber apply
The frictional force of glue loading.
Described rubber binding includes friction platform 2, elastomer 5, fixed seat 6, adding thermal resistance wiring shell 7, friction
Platform 8, thermocouple 9, water trap 19, water-stop sheet 20, friction platform 2 upper surface fixation elastomer 5, the upper end fixed seat 6 of elastomer 5,
The upper surface fixed friction platform 8 of fixed seat 6, the top of rubbing table 8 are provided with water-stop sheet 20 and thermocouple 9, and the upper surface of rubbing table 8 is set
There is experiment groove 81, the surrounding of experiment groove 81 is provided with resistive heater J1, and water trap 19 is fixed on the interior of experiment groove 81
On wall, the experiment sidewall upper of groove 81 is also milled with a semiellipse groove 82, is easy to the handling of rubbery sample, resistive heater
J1, resistive heater J1 are fixed in the internal cavity that rubbing table 8 is formed with testing groove 81, and thermocouple 9 is used to detect rubbing table 8
Temperature, experiment groove 81 top is provided with water pipe 21, and water pipe 21 is fixed on housing 29, the supporting and fixing seat 6 of elastomer 5, together
When elastomer 5 elastic reaction reduce fixed seat 6 amplitude influence.
Rubber mobile range detection means includes sensor fixed block 3, friction force sensor 4, and plane is consolidated on the platform 2 that rubs
Determine sensor fixed block 3, fixed friction force snesor 4 on sensor fixed block 3, the monitoring contact jaw of friction force sensor 4 with
Fixed seat 6 contacts, and sensor is by detecting the amplitude of fixed seat 6, i.e. displacement, the shadow according to elastomer 5 to the amplitude of support base 6
Ring, signal acquisition and processing apparatus analyzes the amplitude of rubbing table 8.
Rubber pressure loading device includes screw mandrel fixed block 13, ball screw 14, force application board 16, belt wheel 1, step
Stepper motor 30, stepper motor 30 are fixed on housing 29, and fixed belt wheel 1 passes through V belt translation on the output shaft of stepper motor 30
It is connected with the belt wheel two of the fixation of the upper end of ball screw 14, the both ends of ball screw 14 pass through two on the surface of housing 29
Bearing in block screw mandrel fixed block 13 is fixed, and the nut installed on ball screw 14 fixes one end of force application board 16, force
The other end of plate 16 fixes the rear end of slide unit pressure plare 27, and slide unit pressure plare 27 is fixed on the sliding block of linear motion guide rail 1
On, the front end of slide unit pressure plare 27 is provided with load sensor 28, and the lower end of slide unit pressure plare 27 is equipped with linear bearing 26, linear axis
The traveller of the vertical direction of the 26 upper surface setting of endoporus slip pressure head disk 25 is held, the traveller upper end of the upper surface of pressure head disk 25 is set
Cylindrical column diameter be more than the diameter of bore of linear bearing 26, to prevent pressure head disk 25 from coming off, the upper surface of pressure head disk 25 with it is negative
The contact of lotus sensor 28, for detecting the power applied on pressure head disk 25.
Rubber friction force loading device includes bearing pin 10, push rod 11, friction head 22, pressing head seat 23, rolling element 24, straight
Line motion bearings W1, the axis of guide 12, bobbin W3, induction coil W4, equilibrium bomb reed W5, high strength permanent magnet iron W6, retainer W7,
The outside of the axis of guide 12 is equipped with linear motion bearing W1, and the rear end of the axis of guide 12 is fixed with the bobbin W3 of fork-shaped, bobbin W3's
Two fork portions distinguish fixed inductor W4, and induction coil W4 is fixedly connected with equilibrium bomb reed W5 one end, retainer W7
It is fixedly connected with the equilibrium bomb reed W5 other end, high strength permanent magnet iron W6 is arranged at rear among bobbin W3 two fork-shapeds, high
Strong permanent magnetic iron W6 is fixed on retainer W7, and linear motion bearing W1, retainer W7 are fixed on housing 29, and friction head 22 is solid
The bottom of pressing head seat 23 is scheduled on, the top of pressing head seat 23 is set can be around the rolling element 24 of its own center rotating, pressing head seat
23 are fixedly connected with the front end of push rod 11, and the rear end of push rod 11 passes through bearing pin 10 and the hinge connection of the axis of guide 12.
Signal acquisition and processing apparatus includes TT＆C system computer, rubber binding, rubber mobile range detection means,
Rubber pressure loading device, the control circuit of rubber friction force loading device are connected with TT＆C system computer, and rubber fixes dress
The control circuit put and resistive heater J1 electromagnetic switch, thermocouple 9, the electromagnetic valve switch of water pipe 21 are connected, rubber movement
The control circuit of amplitude detecting device is connected with friction force sensor 4, control circuit and the stepping electricity of rubber pressure loading device
Machine 30, load sensor 28 are connected, and the control circuit of rubber friction force loading device is connected with induction coil W4.
The method that rubber friction experimental machine carries out frictional experiment, comprises the following steps：
Step 1：Open computer, laboratory apparatus switch；
Step 2：By rubbery sample clamping in groove 81 is tested；
Step 3：Using TT＆C system computer, the pressure for setting the experimental temperature of rubbery sample to apply with rubber pressure loading device
The experiment parameter for the frictional force that power, rubber friction power apply；
Step 4：Laboratory apparatus is heated up automatically；
Step 5：Whether TT＆C system COMPUTER DETECTION thermocouple reaches the experimental temperature of rubbery sample set in step 3,
If so, then carry out step 6；If otherwise continue step 4；
Step 6：Laboratory apparatus carries out the pressure of rubbery sample, frictional force loading automatically；
Step 7：Whether TT＆C system COMPUTER DETECTION reaches rubber pressure parameter set in step 3, if so, then starting to try
Test, while open the electromagnetic valve switch of water pipe 21, allow water to be instilled from water pipe in experiment groove；If it is not, then continue executing with step
6；
Step 8：Experiment preserves data after terminating, preserve experimentation curve and experimental result.
Compared with prior art, the invention has the advantages that：
1st, the diversity of sample material, the sample that experimental machine can be different to various materials and surface quality carry out rubber friction
Detection；
2nd, the realization of continuous dynamic friction process, it is possible to achieve the continuous dynamic friction between material and friction head to be detected, and
Frictional force, test force and its temperature regime related data information can be recorded in real time, additionally can be with each parameter curve of real-time rendering；
3rd, the adjustability of environment temperature, is designed with temperature controlling groove in rubbing table, may be inserted into thermocouple and carries out effective detection experiment
During temperature inside rubbing table, while temperature change can be controlled, and record in real time；
4th, the accuracy of measurement result, multi collect can be carried out to data during continuous friction, passes through weighted average
Seek its average, ensure the stabilization of measurement result with it is accurate；
5th, equipped with water tank and water pipe, therefore the tribological property of the sample material under lubricating condition can be studied, to studying lubricious strip
The frictional behaviour of material has good applicability under part.Heating and loading device are additionally added, sample can be carried out
Heating and pressurization, reach sample actual work temperature and load, can preferably be used for elastomeric material under high pressure-temperature operating mode
Therefore the research of friction mechanism can simulate the real working condition of traveling tire on rainy day in summer road.Linear reciprocation electromagnetic drive mechanism
Straight-line transmitting lever, push rod, pressing head seat and friction head can be driven to move back and forth, realized with rubbery sample back and forth to mill, can mould
Intend the actual friction duty of the emergency brake device of grinding machine and automobile, carry out the research of friction mechanism；
6th, employ the face being made up of rectangular surfaces friction head with rubbery sample and contact friction, will friction by the effect that screws of screw thread
Head is assembled in pressure head bottom, and using the groove in rubbing table top base by rubbery sample, so its structure design is closed
Reason, parts adjustment is easy, and trial stretch is wide, and it is convenient to be changed with friction head and sample handling, the advantages of being hardly damaged.
Below by the drawings and specific embodiments, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of rubber friction experimental machine of the present invention.
Fig. 2 is Fig. 1 first half enlarged drawing.
Fig. 3 is Fig. 1 lower half partial enlarged drawing.
Fig. 4 is Fig. 3 partial enlarged drawings.
Fig. 5 is the reciprocal electromagnetic drive structures figure of rubber friction experimental machine of the present invention.
Fig. 6 is that the test force of rubber friction experimental machine of the present invention loads drive mechanism schematic diagram.
Fig. 7 is that rubbing table, thermocouple, resistive heater shell, a kind of structure of water trap in the embodiment of the present invention are shown
It is intended to.
Fig. 8 is sectional views of the Fig. 7 along A-A.
Fig. 9 is a kind of structural representation of rubbing table in Fig. 4.
Figure 10 is Fig. 9 M to structural representation.
Figure 11 is sectional views of the Figure 10 along B-B lines.
Figure 12 is sectional views of the Figure 10 along C-C lines.
Figure 13 is a kind of structural representation of water trap in Fig. 4.
Figure 14 is sectional views of the Figure 13 along D-D lines.
In figure：1 pedestal, 2 friction platforms, 3 sensor fixed blocks, 4 friction force sensors, 5 elastomers, 6 fixed seats, 7 add
Hot water radiation wire shell, 8 rubbing tables, 9 thermocouples, 10 bearing pins, 11 push rods, 13 screw mandrel fixed blocks, 14 ball wire bar pairs, 15 straight lines fortune
Dynamic guide rail, 16 force application boards, 17 belt wheels, 18 water tanks, 19 water traps, 20 water-stop sheets, 21 water pipes, 22 friction heads, 23 pressing head seats, 24 rollings
Kinetoplast, 25 pressure head disks, 26 linear bearings, 27 slide unit pressure plares, 28 load sensors, 29 housings, 30 stepper motors, cover on 31,
81 experiment grooves, 82 semiellipse grooves, J1 resistive heaters, W1 motion guide rails, 12 axis of guides, W3 bobbins, W4 induction coils,
W5 equilibrium bomb reeds, W6 high strength permanent magnet iron, W7 retainers.
Embodiment
The embodiment of the present invention will be described in further detail below.
Describe the concrete structure of the present invention in detail according to Fig. 1~14, it is solid that the rubber friction experimental machine includes pedestal 1, rubber
Determine device, rubber mobile range detection means, rubber pressure loading device, rubber friction force loading device, signal acquisition process
Device, described rubber binding are fixed on pedestal 1, and rubber mobile range detection means is directly or indirectly fixed on pedestal
On 1, rubber pressure loading device, rubber friction force loading device are fixed on housing 29, and housing is fixed on pedestal 1, signal
Acquisition processing device adds with rubber binding, rubber mobile range detection means, rubber pressure loading device, rubber friction power
The control circuit connection put is carried, to the heating-up temperature of rubber, collection rubber mobile range, the pressure of rubber application, rubber
The frictional force being subject to, and calculate the coefficient of friction of rubber.
Described rubber binding includes friction platform 2, elastomer 5, fixed seat 6, adding thermal resistance wiring shell 7, friction
Platform 8, thermocouple 9, water trap 19, water-stop sheet 20, rub platform 2 on plane be screwed elastomer 5, the upper end of elastomer 5
Together with being connected by screw with fixed seat 6, rubbing table 8 is placed in the upper surface of fixed seat 6, and the top of rubbing table 8 is fitted with water-stop sheet
20 with thermocouple 9 and be milled with experiment groove 81, experiment groove 81 surrounding be wound with resistive heater J1, resistive heater J1 leads to
Adding thermal resistance wiring shell 7 is crossed to connect with external circuit, and water trap 19 is bolted on the inwall of experiment groove 81.Cause
Experiment groove 81 will be used to be embedded in rubbery sample, therefore the thickness of rubbery sample should be less than testing the depth of groove 81, test groove
81 groove surfaces milled out can ensure that friction head 22 does not collide during reciprocatingly sliding with the experiment inwall of groove 81, in addition
The experiment sidewall upper of groove 81 is also milled with a semiellipse groove 82, is so easy to the handling of rubbery sample, resistive heater J1,
Resistive heater J1 is fixed in the internal cavity that rubbing table 8 is formed with testing groove 81, and thermocouple 9 is used for the temperature for detecting rubbing table
Degree.
Rubber mobile range detection means includes sensor fixed block 3, friction force sensor 4, and plane should on the platform 2 that rubs
Elastomer 5 and sensor fixed block 3 are screwed, friction force sensor 4 is screwed in the upper screwed hole of sensor fixed block 3,
The monitoring contact jaw of sensor contacts with fixed seat 6, for detecting the amplitude of fixed seat 6, so as to calculate rubbing table 8 and rubber
Mobile range, analyze the coefficient of friction of rubber.
Rubber pressure loading device includes screw mandrel fixed block 13, ball screw 14, force application board 16, belt wheel 1, step
Stepper motor 30, stepper motor 30 are fixed by screws in the surface of housing 29, provide power for transmission mechanism, stepper motor 30 produces
Power ball screw 14 is sent to by belt wheel 1, and the both ends of ball screw 14 are by the surface of housing 29
Bearing in two pieces of screw mandrel fixed blocks 13 is fixed, on ball screw 14 installation contain and the force application board 16 of its matching nut
One end, due to the presence of nut, therefore screwing the force application board 16 on ball screw 14 can move up and down, and force application board 16 is another
One end is linked together by four bolts with slide unit pressure plare 27, and slide unit pressure plare 27 is fixed on linear motion guide rail 1
On sliding block, therefore power caused by stepper motor 30 is transmitted and linear motion guide rail one by belt wheel 1 and ball screw assembly, 14
15 are oriented to, and drive slide unit pressure plare 27 to move up and down, and then the application of Control experiment power and the size of test force, slide unit
The upper end of pressure plare 27 is provided with load sensor 28, and its main function is collection force signal, and the lower end of slide unit pressure plare 27 is equipped with
Linear bearing 26, the endoporus of linear bearing 26 slides the traveller for the vertical direction that the upper surface of pressure head disk 25 is set, straight due to existing
Bobbin holds the effect of 26 guiding, ensure that test force is stable and is applied on pressure head disk 25, the upper surface of pressure head disk 25 is set perpendicular
Nogata to the cylindrical column diameter that sets of traveller upper end be more than the diameter of bore of linear bearing 26, to prevent pressure head disk 25 de-
Fall, the upper surface of pressure head disk 25 and the contact of load sensor 28, for detecting the power applied on pressure head disk 25.
Rubber friction force loading device includes bearing pin 10, push rod 11, friction head 22, pressing head seat 23, rolling element 24, straight
Line motion bearings W1, the axis of guide 12, bobbin W3, induction coil W4, equilibrium bomb reed W5, high strength permanent magnet iron W6, retainer W7,
The axis of guide 12 manufactures for aluminum profile extrusion, and linear motion bearing W1 is housed in the outside of the axis of guide 12, can carry out blind-mate
And good rigid contact is ensure that, the rear end of the axis of guide 12 is fixed with the bobbin W3 of fork-shaped, bobbin W3 two fork portions
Fixed inductor W4, induction coil W4 are fixedly connected with equilibrium bomb reed W5 one end respectively, and retainer W7 is by aluminium essence
Close making, and be fixedly connected with the equilibrium bomb reed W5 other end, equilibrium bomb reed W5 provides flexible support for bobbin W3,
High strength permanent magnet iron W6 is arranged at rear among bobbin W3 two fork-shapeds, and high strength permanent magnet iron W6 is fixed on retainer W7, straight line
Motion bearings W1, retainer W7 are fixed on housing 29, and rubber friction force loading device is to produce week using electromagnetic induction principle
Exciting force of the electromagnetic force of phase change as straight reciprocating motion, regulation induction coil W4 frequency of supplies can reach regulation exciting
The purpose of frequency, and by adjusting the secondary value size of the adjustable vibration of current value, so as to obtain different displacements.Rectangular surfaces friction head
22 faces formed with rubbery sample contact friction pair, and friction head 22 is to be assembled in pressing head seat 23 by the effect that screws of screw thread
Bottom, while handling of the assembling mode to friction head 22 are changed convenient, are hardly damaged, the top of pressing head seat 23 is equipped with can be around
The rolling element 24 of its center rotating, the front end of pressing head seat 23 and push rod 11 is linked together using threaded engagement in addition, and
Push rod 11 is by bearing pin 10 together with the hinge connection of the axis of guide 12, and such push rod 11 can rotate around bearing pin, conveniently will
Rubbery sample loads or taken out, and in linear motion bearing W1 guide slide, push rod 11 will be with leading the axis of guide 12
To axle 12 along the axial movement of guide slide, drive the friction head 22 on pressing head seat 23 to be synchronized with the movement afterwards, during experiment, open
Water valve, water is allowed to instill experiment groove 81 by water pipe 21 from water tank 18, water will flow through rubbery sample surface afterwards, then from reality
The manhole tested on the inwall of groove 81 flows into water trap 19, and last water flows out rubbing table 8 from water trap 19, and water pipe 21 is fixed
On housing 29.
Signal acquisition and processing apparatus includes TT＆C system computer, rubber binding, rubber mobile range detection means,
Rubber pressure loading device, the control circuit of rubber friction force loading device are connected with TT＆C system computer by USB, are passed through
TT＆C system computer installation test parameters, control rubber mobile range detection means, rubber pressure loading device, rubber friction
The control circuit operation of force loading device, while gather rubber mobile range detection means, rubber pressure loading device, rubber and rub
Wipe the signal of the control circuit of force loading device and draw out correlation curve, it is possible to achieve the real-time preservation of data, rubber are fixed
The control circuit of device and resistive heater J1 electromagnetic switch, thermocouple 9, the electromagnetic valve switch of water pipe 21 are connected, and rubber moves
The control circuit of dynamic amplitude detecting device is connected with friction force sensor 4, the control circuit of rubber pressure loading device and stepping
Motor 30, load sensor 28 are connected, and the control circuit of rubber friction force loading device is connected with induction coil W4.
The testing machine course of work is：The electromagnetic force that mechanical periodicity is produced by electromagnetic induction principle drives the axis of guide 12 to transport
It is dynamic, promote push rod 11, pressing head seat 23 to be synchronized with the movement together with friction head 22, realize friction head 22 along the past of rubbery sample surface
Multiple motion, rubbery sample are embedded in experiment groove 81, are equipped with water pipe 21 above rubbery sample, can inject neat liquid or contain
Liquid medium of solid particle, by the driving of stepper motor 30, transmitted by belt wheel 1, ball-screw 14 and force application board 16,
Linear motion guide rail 1 is oriented to, and is driven slide unit pressure plare 27 to move up and down, the loading to rubbery sample is realized, according to actual work
Condition, the test parameters of one group of load, liquid medium and temperature is preset out, friction test is carried out, during friction test
Measured in real time by friction force sensor with gathering test data, and storage test data, experiment takes out rubbery sample after terminating
Material is measured, the change of temperature and load is then realized by TT＆C system computer, the liquid medium then more renewed and examination
Sample carries out lower battery of tests.
The method that the above-mentioned multifunctional high-temperature high-speed tester for friction between of the present invention carries out frictional experiment, it is preferably specific
Embodiment is as follows：
（1）Laboratory apparatus master switch is connected on voltage-stablizer, opens switch, opens computer, laboratory apparatus switch successively；
（2）Sample is put into lower sample holder, and to ensure sample level, the stabilization of sample and friction pair, there can not be slip；Peace
When filling sample, can unload power manually rises pressure head, is easy to the clamping of sample.After the completion of clamping, also can manual force application, make under pressure head
It is down to above sample, is easy to test the loading of power, but ten thousand not can contact sample；
（3）TT＆C software is opened on computers, and change experiment parameter is for example：Experimental temperature, load, test period, if carrying out
Then specimen temperature is not changed for normal temperature experiment, is just changed to the specimen temperature in parameter to test required temperature i.e. if carrying out high temperature experiment
Can, when high temperature is tested, if programming rate is relatively slow or experimental temperature is higher, heating rate can be changed；
（4）Treat that the above is completed（Required temperature is risen to, is incubated 10-20 minutes）, preservation data must be first clicked on, computer can be in table
The clear data storehouse of one entitled " experiment process record " is established in face, is treated that experiment is completed to click on and is preserved data, will automatically save
Enter this clear data storehouse.Ensure that stroke is located at stroke high order end.After the completion of preparation, loading is clicked on, instrument can add automatically
Experiment power needed for being loaded onto, while water valve is opened, allow water to instill sample groove by water pipe from water tank, then click on and start to test,
Then stroke is pulled into right-hand member with mouse, then constantly clicking on keyboard direction " right button " makes stroke slowly increase, and then stablizes
In required stroke size.Experiment is waited to terminate；
（5）After experiment terminates, stroke is adjusted to high order end first, power is unloaded, then preserve data, preserve experimentation curve
With experimental result, and sample is unloaded, site clearing, close experiment electromechanical source.
Claims (7)
1. a kind of rubber friction experimental machine includes pedestal (1）, rubber binding, rubber mobile range detection means, rubber pressure
Force loading device, rubber friction force loading device, signal acquisition and processing apparatus, it is characterised in that：Described rubber binding
It is fixed on pedestal (1）On, rubber mobile range detection means is directly or indirectly fixed on pedestal (1）On, rubber pressure loading dress
Put, rubber friction force loading device is fixed on housing (29）On, housing is fixed on pedestal (1）On, signal acquisition and processing apparatus with
Rubber binding, rubber mobile range detection means, rubber pressure loading device, the control electricity of rubber friction force loading device
Road connects, to gather pressure, the frictional force of rubber loading that the heating-up temperature of rubber, rubber mobile range, rubber apply.
2. rubber friction experimental machine according to claim 1, it is characterised in that：Described rubber binding includes friction
Platform (2）, elastomer (5）, fixed seat (6）, rubbing table (8）, thermocouple (9）, water trap (19）, water-stop sheet (20）, rub flat
Platform (2）Elastomer (5 is fixed in upper surface）, elastomer (5）Upper end fixed seat (6）, fixed seat (6）Upper surface fixed friction platform (8）,
Rubbing table (8）Top is provided with water-stop sheet (20）With thermocouple (9）, rubbing table (8）Upper surface is provided with experiment groove (81）, it is real
Test groove (81）Surrounding be provided with resistive heater (J1）, water trap (19）It is fixed on experiment groove (81）Inwall on, it is real
Test groove (81）Sidewall upper is provided with semiellipse groove (82）, it is easy to the handling of rubbery sample, resistive heater（J1）, heating
Resistance wire（J1）It is fixed on rubbing table (8）With testing groove (81）In the internal cavity of formation, thermocouple (9）For detecting rubbing table
(8）Temperature, test groove (81）Top is provided with water pipe (21）, water pipe (21）It is fixed on housing (29）On.
3. rubber friction experimental machine according to claim 2, it is characterised in that：Rubber mobile range detection means includes passing
Sensor fixed block (3）, friction force sensor (4）, rub platform (2）Upper plane fixes sensor fixed block (3）, sensor fixes
Block (3）Upper fixed friction force snesor (4）, friction force sensor (4）Monitoring contact jaw and fixed seat（6）Contact.
4. rubber friction experimental machine according to claim 3, it is characterised in that：Rubber pressure loading device includes silk
Bar fixed block (13）, ball screw (14）, force application board (16）, belt wheel one (17）, stepper motor (30）, stepper motor (30）It is fixed
In housing (29）On, stepper motor (30）Fixed belt wheel one (17 on output shaft）Pass through V belt translation and ball screw (14）Upper end
The belt wheel two of fixation connect, ball screw (14）Both ends pass through installed in housing (29）Two pieces of screw mandrel fixed blocks on surface
(13）Interior bearing is fixed, ball screw (14）The nut of upper installation fixes force application board (16）One end, force application board (16）
The other end fix slide unit pressure plare (27）Rear end, slide unit pressure plare (27）It is fixed on linear motion guide rail one (15）Sliding block
On, slide unit pressure plare (27）Front end is provided with load sensor (28）, and slide unit pressure plare (27）Lower end is equipped with linear bearing
(26）, linear bearing (26）Endoporus slide pressure head disk (25）The traveller for the vertical direction that upper surface is set, pressure head disk (25）On
The cylindrical column diameter that the traveller upper end on surface is set is more than linear bearing (26）Diameter of bore, to prevent pressure head disk (25）It is de-
Fall, pressure head disk (25）Upper surface and load sensor (28）Contact, for detecting pressure head disk (25）The power of upper application.
5. rubber friction experimental machine according to claim 4, it is characterised in that：Rubber friction force loading device includes
Bearing pin (10）, push rod (11）, friction head (22）, pressing head seat (23）, rolling element (24）, linear motion bearing (W1）, the axis of guide
(12）, bobbin (W3）, induction coil (W4）, equilibrium bomb reed (W5）, high strength permanent magnet iron (W6）, retainer (W7）, the axis of guide
(12）Outside linear motion bearing (W1 is housed）, the axis of guide (12）Rear end is fixed with the bobbin (W3 of fork-shaped）, bobbin
(W3）Two fork portions difference fixed inductor (W4）, induction coil (W4）With equilibrium bomb reed (W5）One end fix connect
Connect, retainer (W7）With equilibrium bomb reed (W5）The other end be fixedly connected, high strength permanent magnet iron (W6）It is arranged at bobbin (W3）
Two fork-shapeds among rear, high strength permanent magnet iron (W6）It is fixed on retainer (W7）On, linear motion bearing (W1）, retainer (W7）
It is fixed on housing (29）On, friction head (22）It is integrally fixed at pressing head seat (23）Bottom, pressing head seat (23）Set can be with top
Around the rolling element (24 of its own center rotating）, pressing head seat (23）With push rod (11）Front end be fixedly connected, push rod (11）Afterwards
End passes through bearing pin (10）With the axis of guide (12）Hinge connection.
6. rubber friction experimental machine according to claim 5, it is characterised in that：Signal acquisition and processing apparatus includes observing and controlling system
System computer, rubber binding, rubber mobile range detection means, rubber pressure loading device, rubber friction power loading dress
The control circuit put is connected with TT＆C system computer, control circuit and the resistive heater (J1 of rubber binding）Electromagnetism
Switch, thermocouple (9）, water pipe (21）Electromagnetic valve switch connection, the control circuit of rubber mobile range detection means and friction
Force snesor (4）Connection, control circuit and the stepper motor (30 of rubber pressure loading device）, load sensor (28）Connection,
The control circuit of rubber friction force loading device and induction coil (W4）Connection.
7. the method for rubber friction experimental machine frictional experiment according to claim 6, it is characterised in that：Including following step
Suddenly：
Step 1：Open computer, laboratory apparatus switch；
Step 2：By rubbery sample clamping in groove is tested；
Step 3：Using TT＆C system computer, the pressure for setting the experimental temperature of rubbery sample to apply with rubber pressure loading device
The experiment parameter for the frictional force that power, rubber friction power apply；
Step 4：Laboratory apparatus is heated up automatically；
Step 5：Whether TT＆C system COMPUTER DETECTION thermocouple reaches the experimental temperature of rubbery sample set in step 3,
If so, then carry out step 6；If otherwise continue step 4；
Step 6：Laboratory apparatus carries out the pressure of rubbery sample, frictional force loading automatically；
Step 7：Whether TT＆C system COMPUTER DETECTION reaches rubber pressure parameter set in step 3, if so, then starting to try
Test, while open the electromagnetic valve switch of water pipe, allow water to be instilled from water pipe in experiment groove；If it is not, then continue executing with step 6；
Step 8：Experiment preserves data after terminating, preserve experimentation curve and experimental result.
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| CN111337653A (en) * | 2020-03-24 | 2020-06-26 | 大连海事大学 | Resistance method double-point contact friction analyzer |
| CN111622879A (en) * | 2020-05-28 | 2020-09-04 | 中国第一汽车股份有限公司 | System and method for testing frictional wear performance of needle valve and needle valve body of oil injector |
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| CN111337653B (en) * | 2020-03-24 | 2022-04-01 | 大连海事大学 | Resistance method double-point contact friction analyzer |
| CN111337653A (en) * | 2020-03-24 | 2020-06-26 | 大连海事大学 | Resistance method double-point contact friction analyzer |
| CN111622879B (en) * | 2020-05-28 | 2021-10-15 | 中国第一汽车股份有限公司 | System and method for testing frictional wear performance of needle valve and needle valve body of oil injector |
| CN111622879A (en) * | 2020-05-28 | 2020-09-04 | 中国第一汽车股份有限公司 | System and method for testing frictional wear performance of needle valve and needle valve body of oil injector |
| CN112345394A (en) * | 2020-08-26 | 2021-02-09 | 江苏大学 | Friction wear test device capable of realizing differential temperature distribution of pin discs and realizing self-adaptive adjustment |
| CN112345394B (en) * | 2020-08-26 | 2023-02-17 | 江苏大学 | Friction wear test device capable of realizing differential temperature distribution of pin discs and realizing self-adaptive adjustment |
| CN112179797A (en) * | 2020-10-09 | 2021-01-05 | 徐丹凤 | Detection dynamics adjustable tire wearability detection device that new energy automobile used |
| CN117288622A (en) * | 2023-11-06 | 2023-12-26 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
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