CN208968931U - Universe deforms online testing device in tire tread rubber material trace - Google Patents
Universe deforms online testing device in tire tread rubber material trace Download PDFInfo
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- CN208968931U CN208968931U CN201821342134.1U CN201821342134U CN208968931U CN 208968931 U CN208968931 U CN 208968931U CN 201821342134 U CN201821342134 U CN 201821342134U CN 208968931 U CN208968931 U CN 208968931U
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Abstract
The utility model relates to universes in a kind of tire tread rubber material trace to deform online testing device, it is made of support platform, straight line load regulating mechanism, rotation load regulating mechanism, adaptive clamp system and vision detection system, straight line load regulating mechanism and vision detection system are fixedly connected in support platform according to definitely positional relationship；Straight line loads regulating mechanism and is fixedly connected with rotation load regulating mechanism, adaptive clamp system is fixedly connected with pressure sensor, pressure sensor is fixedly connected with torque sensor, the device can simulate tread-rubber material stress deformation in contact trace under the various operating conditions of tire completely, pass through non-contact vision measuring method, solve the problems, such as that single-contact measurement method is difficult to realize in existing tire tread rubber material trace and test result error is big and cannot obtain contact trace inner tread rubber material universe deformation characteristic, with simple for structure, the characteristics of easily controllable and adjusting.
Description
Technical field
The utility model belongs to tire tread rubber characteristic of material mechanics testing field, and in particular to a kind of tire is in reality
Online testing device is deformed in contact trace inner tread rubber material universe under operating condition.
Background technique
Tire is one of automobile important component, is the transferring element of the supporter of stress and various power on vehicle, performance
Superiority and inferiority directly affect the service performance of vehicle.The rigidity of tire is important one of the service performance of tire, direct shadow
Ring dynamic property, economy, control stability, riding comfort and the safety of vehicle.Tire tread rubber material is tire weight
Component part is wanted, and the part uniquely directly contacted with ground, it rigidly has direct great influence to tire.Vehicle is daily
In use, the deformation of tire interface trace inner tread rubber specifically includes that extrusion deformation, shear-deformable and compression shear Coupling Deformation,
By adjusting the side drift angle and vertical load of tire, it is special to embody deformation in the tire tread rubber contact trace under different operating conditions
Sign.
Currently, in tire tread rubber material trace deformation test device be broadly divided into tire tread detection device and
The outer detection device of tire tread.Detection device in tire tread: being by the fixed resistance foil gauge in tire dignity or optics inspection
The method of measuring wheel tire tread inner surface variation, realizes the acquisition of tire interface trace inner tread and carcass structural strain's, tire tread
Interior detection device the problem is that: contact trace in tread-rubber material deformation be equal to test obtain structural strain's subtracts
It goes carcass to deform, since carcass deformation has nonlinear characteristic, leads to the tread-rubber in the contact trace obtained
There is very big error in deformation, while to build difficulty big for test device, and for test data vulnerable to external interference, later data processing is tired
The tread-rubber material distressed structure error of difficulty, acquisition is big；The outer detection device of tire tread: being by tire tread material surface
Arrange that foil gauge contacts change in trace by obtaining tire tread rubber after radio transmitting device acquisition electric signal postmenstruation processing
Graphic data, the outer detection device of tire tread the problem is that: test tire tread rubber deformation is limited by tire operating condition, Zhi Neng
It is completed under given specific rotation speeds or load, while strained itself limitation detection can only obtain single-point tire tread rubber and connect
The deformation characteristic in trace is touched, the deformation characteristic in contact trace inner tread rubber totality cannot be expressed.
Therefore, universe deformation online testing device in a kind of tire tread rubber material trace is needed.
Summary of the invention
The purpose of the utility model is to provide universes in a kind of tire tread rubber material trace to deform on-line testing
Device and its test method simulate complete in the tire tread rubber material trace under tire actual use operating condition completely
Area deformation realizes that universe deforms non-contact detecting in tire interface trace by visible detection method, and comprehensive analysis has obtained wheel
Angular displacement, pressure and the torque data that tire tread rubber universe deformation data and various kinds of sensors obtain, obtain the practical fortune of tire
Under row operating condition tread-rubber contact trace interior mechanics feature distribution, the device have that stability is strong, test method is easy and
Tread-rubber contacts the characteristics of universe on-line checking in trace, solves deformation in existing tire tread rubber material trace
Test device there are the problem of.
The purpose of this utility model is achieved through the following technical solutions:
Universe deforms online testing device, including support platform 1, straight line in a kind of tire tread rubber material trace
It loads regulating mechanism 2, rotation load regulating mechanism 3, vision detection system 4, adaptive clamp system 6, pressure sensor 7, turn round
Square sensor 8 and computer, the straight line load regulating mechanism 2 are fixed in support platform 1 by the first support plate 213,
The vision detection system 4 is fixed in support platform 1 by support base 410, and the rotation load regulating mechanism 3 passes through
Fixed bracket 31 is fixedly connected with the connecting plate 210 of straight line load regulating mechanism 2, and the torque sensor 8 is fixed on support
On platform, the pressure sensor 7 is fixedly connected on 8 top of torque sensor, and the adaptive clamp system 6 is fixed
It is connected to 7 top of pressure sensor, the camera 41 of vision detection system 4 and optical axis, the rotation load regulating mechanism 3 of light source 48
The axis of turbine and worm turntable 32 and the center line of tire tread rubber sample 5 be same straight line, the described straight line load
The angular encoder 21 of regulating mechanism 2, rotation load magnetic scale rotary angle transmitter 39, pressure sensor 7 and the torque of regulating mechanism 3
Sensor 8 is connect by data collecting card with computer communication respectively, and the motor 23 and rotating electric machine 36 pass through drive respectively
Dynamic device and computer control connect, and the camera 41 and light source 48 and computer control connect.
As the further technical solution of the utility model, the straight line load regulating mechanism 2 includes angular encoder
21, motor 23, active synchronization belt wheel 24, passive and synchronous belt wheel 26, lead screw shaft bearings 27, lead screw 28, sliding block 29, connecting plate
210, screw 211, trapezoidal line slide rail 212 and the first support plate 213；The angular encoder 21 and motor 23 passes through bracket
22 are fixedly connected on the side of the first support plate 213, corresponding hole location and the fixed company of the shaft of motor 23 on angular encoder 21
It connects, active synchronization belt wheel 24 is fixedly connected with the shaft of motor 23, and active synchronization belt wheel 24 is by passing through in the first support plate 213
The synchronous toothed belt 25 of through-hole connect with the passive and synchronous belt wheel 26 of the support plate other side, passive and synchronous belt wheel 26 and lead screw
28 are fixedly connected, and upper and lower two lead screw shaft bearings 27 and lead screw 28 form revolute, lead screw shaft bearings 27 and the first support plate 213
It is fixedly connected, lead screw 28 is threadedly coupled with screw 211, and screw 211 is fixedly connected with connecting plate 210, sliding block 29 and connecting plate 210
It is fixedly connected, trapezoidal line slide rail 212 forms prismatic pair with sliding block 29, and trapezoidal line slide rail 212 and the first support plate 213 are solid
Fixed connection.
As the further technical solution of the utility model, the rotation load regulating mechanism 3 with connecting plate 210 by consolidating
Surely fixation bracket 31, turbine and worm turntable 32, magnetic scale 33, support plate 34, the high-intensitive pressure-resistant transparency glass plate 35, rotation connected
Motor 36, sensor stand 38 and magnetic scale rotary angle transmitter 39 form；The stator of fixed bracket 31 and turbine and worm turntable 32 is solid
Fixed connection, magnetic scale 33 are fixedly connected with support plate 34, circular ring shape support plate 34 and high intensity pressure resistance transparency glass plate 35 successively with
The rotor of turbine and worm turntable 32 is fixedly connected, and it is straight that the diameter of high-intensitive pressure resistance transparency glass plate 35 is greater than 34 inner ring of support plate
Diameter, rotating electric machine 36 are fixedly connected by shaft coupling 37 with the worm screw shaft of turbine and worm turntable 32, sensor stand 38 and whirlpool
The stator of worm and gear turntable 32 is fixedly connected, and sensor stand 38 is fixedly connected with magnetic scale rotary angle transmitter 39, and magnetic scale corner passes
Sensor 39 and 33 gap of magnetic scale are maintained in the range of 0.5mm~2mm.
As the further technical solution of the utility model, the vision detection system 4 is by camera 41, camera support
42, adjust bolt 43, adjusting nut 44, contact pins 45, light source bracket 46, light source support rod 47, light source 48, support rod 49,
Support base 410, support rod positioning bolt 413 form；Camera lens 414, camera 41 and left and right are fixedly connected on the camera 41
The contact pins 45 of arrangement connect, and adjust long strip through hole and 45 spiral shell of contact pins that bolt 43 passes through 42 two sides of camera support
Line connection, adjusting nut 44 are threadedly coupled with bolt 43 is adjusted, and camera support 42 and support rod 49 form prismatic pair, camera support
42 are fixed on support rod 49 by camera positioning bolt 411, and light source bracket 46 and support rod 49 form prismatic pair, light source branch
Frame 46 is connect by 412 screw thread of light source positioning bolt with support rod 49, the light source support rod 47 being arranged symmetrically and light source bracket 46
It is fixedly connected by light source support rod positioning bolt 415, support rod 49 and support base 410 form prismatic pair, support base 410 and branch
Support platform 1 is fixedly connected, and support rod positioning bolt 413 is threadedly coupled with support base 410.
As the further technical solution of the utility model, the adaptive clamp system 6 is by trapezoidal guide block 61, spring
62, the second support plate 63, pretension bolt 64, locking nut 65 and clamp bracket 66 and form, the trapezoidal guide block 61 that is arranged symmetrically with
It is secondary to clamp the composition linear movement of bracket 66, clamps bracket 66 and is fixedly connected with the second support plate 63 being arranged symmetrically, 62 sets of spring
Center line is set on pretension bolt 64 to be overlapped, 62 1 side end face of spring is contacted with trapezoidal guide block 61, another side end face of spring 62 and
The contact of second support plate 63, pretension bolt 64 are threadedly coupled with the second support plate 63, and the cylindrical surface of pretension bolt 64 is led with trapezoidal
The corresponding hole location of block 61 forms revolute, and 65 end face of locking nut is contacted with 63 end face outside of the second support plate, locking nut 65
It is threadedly coupled with pretension bolt 64.
On-line testing method, including following step are deformed based on universe in the tire tread rubber material trace
It is rapid:
(1), it is spontaneously dried according to the shape of tire tread rubber sample 5 in contact surface spray paint speckle texture；
(2), the adaptive completion of clamp system 6 is adjusted to determine the tire tread rubber sample 5 comprising speckle textural characteristics
Position clamps；
(3), the turbine of the camera 41 of vision detection system 4 and the optical axis of light source 48, rotation load regulating mechanism 3 is adjusted
The axis of worm screw turntable 32 and the geometric center lines of tire tread rubber sample 5, make three axis collinears, and straight line loads adjusting machine
The support base 410 of first support plate 213 of structure 2, torque sensor 8 and vision detection system 4 is fixed with support platform 1 respectively
Connection；
(4), the camera support 42 of vision detection system 4 and the image-forming range of light source bracket 46, whole camera lens 414 are sequentially adjusted in
Imaging focal length and light source 48 light intensity, under the action of camera 41, through high-intensitive pressure-resistant transparency glass plate 35 in computer
The contact surface speckle image of clear tire tread rubber 5 is obtained on screen；
(5), image mark is carried out after obtaining the speckle image of tire tread rubber sample 5 on computers by camera 41
It is fixed；
(6), the motor 23 of regulating mechanism 2 and the rotating electric machine 36 of rotation load regulating mechanism 3 are loaded by control straight line,
Realize all deformations of tread-rubber sample 5 under tire actual use operating condition, it may be assumed that be squeezed and deformed, the coupling of shear-deformable and compression shear
Deformation.
(7), the deformation characteristic according to the tire tread rubber sample 5 under test tire operating condition, adjusts the resolution of camera 41
Rate and frame per second.During the operating condition of step 6 is realized, by camera 41 and computer every a preset time interval, together
Step is completed to obtain according to 5 universe warped digital image of time series tire tread rubber.At the same time, pass through angular encoder
21, magnetic scale rotary angle transmitter 39, pressure sensor 7 and torque sensor 8 obtain in 5 deformation process of tire tread sample, angle position
It moves, the acquisition of pressure and torque data.
(8), by digital picture template matching technique, to the 5 universe warped digital figure of tire tread rubber at current time
Picture and the 5 universe deformation pattern of tire tread rubber of last moment compare comparative analysis, and it is adjacent to obtain tire tread rubber 5
Moment universe strain information obtains the deformation of tire tread rubber 5 in conjunction with the uncalibrated image of front.
(9), comprehensive analysis obtain angular displacement, pressure, torque data and tire tread rubber 5 deformation data, obtain
Distribution of the tread-rubber in contact trace interior mechanics feature under tire actual operating mode.
The beneficial effects of the utility model are as follows:
The utility model can obtain the distribution of tread-rubber deformation behaviour in contact trace under tire actual operating mode,
It solves test device in tire tread in the prior art and builds that difficulty is big, Tire testing operating condition is limited and can only obtain single-point tire
Tread-rubber contacts the tire that deformation behaviour, test data in trace processing difficulty vulnerable to external interference and later data and obtained
The big technical problem of face rubber material distressed structure error, realize tire tread rubber contact trace in, closed area it is complete
The on-line checking of area deformation feature.Have the advantages that controlling simple, structure is easily achieved and mechanism adjusting simplicity, complete simulation
The non-contact detecting of tire tread rubber deformation behaviour and the distribution of universe deformation behaviour under tire actual use operating condition.
The test device of the utility model is applicable to various tire tread rubber materials, including passenger car, commercial vehicle, work
The vehicle tyres such as journey vehicle, motorcycle and aero tyre need to only actually use Operating condition adjustment test according to detected tyre tread-rubber
Device.
Detailed description of the invention
Fig. 1 is the structure master of universe deformation online testing device in the utility model tire tread rubber material trace
View；
Fig. 2 is that the structure of universe deformation online testing device in the utility model tire tread rubber material trace is bowed
View；
Fig. 3 is the main view of the straight line load regulating mechanism of the utility model test device；
Fig. 4 is the left view of the straight line load regulating mechanism of the utility model test device；
Fig. 5 is the main view of the rotation load regulating mechanism of the utility model test device；
Fig. 6 is the A-A cross-sectional view of the main view of the rotation load regulating mechanism of the utility model test device；
Fig. 7 is the main view of the vision detection system of the utility model test device；
Fig. 8 is the B-B cross-sectional view of the main view of the vision detection system of the utility model test device；
Fig. 9 is the top view of the adaptive clamp system of the utility model test device；
Figure 10 is the C-C cross-sectional view of the top view of the adaptive clamp system of the utility model test device；
Figure 11 is the extrusion deformation test structural schematic diagram of the utility model test device；
Figure 12 is the shear-deformable test structural schematic diagram of the utility model test device；
Figure 13 is the compression shear Coupling Deformation test three dimensional structure diagram of the utility model test device；
Figure 14 is the tire interface trace inner tread rubbery sample 5 at the t=0 moment that the utility model test device obtains
Contact surface speckle image；
Figure 15 is the acquisition of the utility model test device in t=t0The tire interface trace inner tread rubbery sample at moment
5 contact surface speckle image；
Figure 16 is deformed by the single-point tire tread obtained in 5 fixed resistance strain measurement method of tread-rubber sample
Data；
Figure 17 is the acquisition of the utility model test device in moment t0Tire interface trace inner tread rubbery sample 5
The deformation distribution of contact surface universe；
Figure 18 is the tire interface trace inner tread rubbery sample 5 in moment t that the utility model test device obtains
The deformation distribution of contact surface universe.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As illustrated in fig. 1 and 2, it is online to provide universe deformation in a kind of tire tread rubber material trace for the utility model
Test device, including it is support platform 1, straight line load regulating mechanism 2, rotation load regulating mechanism 3, vision detection system 4, adaptive
Clamp system 6, pressure sensor 7, torque sensor 8 and computer are answered, the straight line load regulating mechanism 2 passes through first
Fagging 213 is fixed in support platform 1, and the vision detection system 4 is fixed in support platform 1 by support base 410,
The rotation load regulating mechanism 3 passes through fixed bracket 31 and is fixedly connected with the connecting plate 210 that straight line loads regulating mechanism 2,
The torque sensor 8 is fixed in support platform, and the pressure sensor 7 is fixedly connected on 8 top of torque sensor,
The adaptive clamp system 6 is fixedly connected on 7 top of pressure sensor, the camera 41 and light source 48 of vision detection system 4
Optical axis, rotation load regulating mechanism 3 the axis of turbine and worm turntable 32 and the center line of tire tread rubber sample 5 be
Same straight line, the angular encoder 21 of the straight line load regulating mechanism 2, rotation load the magnetic scale corner of regulating mechanism 3
Sensor 39, pressure sensor 7 are connect by data collecting card with computer communication respectively with torque sensor 8, the electricity
Machine 23 and rotating electric machine 36 are connected by driver and computer control respectively, and the camera 41 and light source 48 pass through program
It is connect with computer.
As shown in Figure 3 and Figure 4, the described straight line load regulating mechanism 2 include angular encoder 21, it is motor 23, actively same
Walk belt wheel 24, passive and synchronous belt wheel 26, lead screw shaft bearings 27, lead screw 28, sliding block 29, connecting plate 210, screw 211, trapezoidal straight line
Sliding rail 212 and the first support plate 213；The angular encoder 21 and motor 23 is fixedly connected on the first support by bracket 22
The side of plate 213, corresponding hole location is fixedly connected with the shaft of motor 23 on angular encoder 21, active synchronization belt wheel 24 and electricity
The shaft of machine 23 is fixedly connected, the synchronous toothed belt 25 that active synchronization belt wheel 24 passes through the through-hole in the first support plate 213
It is connect with the passive and synchronous belt wheel 26 of the support plate other side, passive and synchronous belt wheel 26 is fixedly connected with lead screw 28, upper and lower two silks
Thick stick bearing block 27 and lead screw 28 form revolute, and lead screw shaft bearings 27 are fixedly connected with the first support plate 213, lead screw 28 and silk
Mother 211 is threadedly coupled, and screw 211 is fixedly connected with connecting plate 210, and sliding block 29 is fixedly connected with connecting plate 210, and trapezoidal straight line is sliding
Rail 212 and sliding block 29 form prismatic pair, and trapezoidal line slide rail 212 is fixedly connected with the first support plate 213.
As shown in Figure 5 and Figure 6, the described rotation load regulating mechanism 3 is by the fixation bracket that is fixedly connected with connecting plate 210
31, turbine and worm turntable 32, magnetic scale 33, support plate 34, high-intensitive pressure-resistant transparency glass plate 35, rotating electric machine 36, sensor branch
Frame 38 and magnetic scale rotary angle transmitter 39 form；Fixed bracket 31 is fixedly connected with the stator of turbine and worm turntable 32, magnetic scale 33 and
Support plate 34 is fixedly connected, circular ring shape support plate 34 and high-intensitive pressure-resistant transparency glass plate 35 successively with turbine and worm turntable 32
Rotor is fixedly connected, and the diameter of high-intensitive pressure resistance transparency glass plate 35 is greater than 34 annular diameters of support plate, and rotating electric machine 36 passes through
Shaft coupling 37 is fixedly connected with the worm screw shaft of turbine and worm turntable 32, the stator of sensor stand 38 and turbine and worm turntable 32
It is fixedly connected, sensor stand 38 is fixedly connected with magnetic scale rotary angle transmitter 39, magnetic scale rotary angle transmitter 39 and 33 gap of magnetic scale
It is maintained in the range of 0.5mm~2mm.
As shown in Figure 7 and Figure 8, the vision detection system 4 is by camera 41, camera support 42, adjusting bolt 43, adjusting
Nut 44, contact pins 45, light source bracket 46, light source support rod 47, light source 48, support rod 49, support base 410, support rod are fixed
Position bolt 413 forms；Camera lens 414 is fixedly connected on the camera 41, camera 41 and the contact pins 45 of left and right arrangement connect
Touching connection adjusts long strip through hole of the bolt 43 across 42 two sides of camera support and is threadedly coupled with contact pins 45, adjusting nut 44
It is threadedly coupled with bolt 43 is adjusted, camera support 42 and support rod 49 form prismatic pair, and camera support 42 positions spiral shell by camera
Bolt 411 is fixed on support rod 49, and light source bracket 46 and support rod 49 form prismatic pair, and light source bracket 46 positions spiral shell by light source
412 screw thread of bolt is connect with support rod 49, and the light source support rod 47 being arranged symmetrically is positioned with light source bracket 46 by light source support rod
Bolt 415 is fixedly connected, and support rod 49 and support base 410 form prismatic pair, and support base 410 is fixedly connected with support platform 1,
Support rod positioning bolt 413 is threadedly coupled with support base 410.
As shown in Figure 9 and Figure 10, the adaptive clamp system 6 is by trapezoidal guide block 61, spring 62, the second support plate
63, pretension bolt 64, locking nut 65 and clamping bracket 66 form, 66 groups of bracket of the trapezoidal guide block 61 being arranged symmetrically and clamping
Be in line prismatic pair, clamps bracket 66 and is fixedly connected with the second support plate 63 being arranged symmetrically, spring 62 is nested in pretension bolt
Center line is overlapped on 64, and 62 1 side end face of spring is contacted with trapezoidal guide block 61, another side end face of spring 62 and the second support plate 63
Contact, pretension bolt 64 are threadedly coupled with the second support plate 63, the cylindrical surface of pretension bolt 64 hole corresponding with trapezoidal guide block 61
Position composition revolute, 65 end face of locking nut are contacted with 63 end face outside of the second support plate, locking nut 65 and pretension bolt 64
It is threadedly coupled.The angular encoder 21, magnetic scale rotary angle transmitter 39, pressure sensor 7 and the torque sensor 8
It is connect respectively by data collecting card with computer communication, the motor 23 and rotating electric machine 36 pass through driver and meter respectively
The control connection of calculation machine, the camera 41 and light source 48 are connect by program with computer.
Online testing device is deformed using universe in tire tread rubber material trace described in the utility model, it can
Realize extrusion deformation, shear-deformable and compression shear Coupling Deformation test in tire tread rubber material trace.
Embodiment 1:
As shown in figures 11 and 14, universe is squeezed and deformed on-line testing method in tire tread rubber material trace,
Steps are as follows:
(1), it is spontaneously dried according to the shape of tire tread rubber sample 5 in contact surface spray paint speckle texture；
(2), the adaptive completion of clamp system 6 is adjusted to the locating clip of the tread-rubber sample 5 comprising speckle textural characteristics
Tightly；
(3), the turbine of the camera 41 of vision detection system 4 and the optical axis of light source 48, rotation load regulating mechanism 3 is adjusted
The axis of worm screw turntable 32 and the geometric center lines of tire tread rubber sample 5 after making three axis collinears, adjust straight line load
The support base 410 for saving the first support plate 213 of mechanism 2, torque sensor 8 and vision detection system 4 is solid with support platform 1 respectively
Fixed connection；
(4), the camera support 42 of vision detection system 4 and the image-forming range of light source bracket 46, whole camera lens 414 are sequentially adjusted in
Imaging focal length and light source 48 light intensity, under the action of camera 41, through high-intensitive pressure-resistant transparency glass plate 35 in computer
The contact surface speckle image of clear tire tread rubber 5 is obtained on screen；
(5), image mark is carried out after obtaining the speckle image of tire tread rubber sample 5 on computers by camera 41
It is fixed；
(6), the motor 23 that regulating mechanism 2 is loaded by control straight line makes through high-intensitive pressure-resistant transparency glass plate 35
After lower surface is contacted with the surface for the tire tread rubber sample 5 for having speckle textural characteristics, in the revolving speed by control motor 23
And direction of rotation, realize the straight line of the variable Rate through high-intensitive pressure-resistant transparency glass plate 35 contacted with tire tread rubber 5
Displacement movement is squeezed and deformed to simulate the equivalent tread-rubber material of tire actual use operating condition；
(7), the resolution ratio and frame per second of camera 41 are adjusted.During the operating condition of step 6 is realized, by camera 41 and calculate
Machine is synchronously completed and is obtained according to 5 universe warped digital image of time series tire tread rubber every a preset time interval
It takes.At the same time, it is obtained in 5 deformation process of tire tread sample by angular encoder 21 and pressure sensor 7, obtains pressure
With the data of torque.
(8), by digital picture template matching technique, to the 5 universe warped digital figure of tire tread rubber at current time
Picture and the 5 universe deformation pattern of tire tread rubber of last moment compare and analyze, and obtain 5 adjacent moment of tire tread rubber
Universe strain information obtains the deformation of tire tread rubber 5 in conjunction with the uncalibrated image of front.
(9), the deformation data of comprehensive analysis obtains angular displacement data, pressure data and tire tread rubber 5, obtains wheel
Distribution of the tread-rubber in contact trace interior mechanics feature under tire extruding operating condition.
Embodiment 2:
As shown in Figure 12,13 and 15, the shear-deformable on-line testing method of universe in tire tread rubber material trace,
Its step are as follows:
(1), it is spontaneously dried according to the shape of tire tread rubber sample 5 in contact surface spray paint speckle texture；
(2), the adaptive completion of clamp system 6 is adjusted to the locating clip of the tread-rubber sample 5 comprising speckle textural characteristics
Tightly；
(3), the turbine of the camera 41 of vision detection system 4 and the optical axis of light source 48, rotation load regulating mechanism 3 is adjusted
The axis of worm screw turntable 32 and the geometric center lines of tire tread rubber sample 5 after making three axis collinears, adjust straight line load
The support base 410 for saving the first support plate 213 of mechanism 2, torque sensor 8 and vision detection system 4 is solid with support platform 1 respectively
Fixed connection；
(4), the camera support 42 of vision detection system 4 and the image-forming range of light source bracket 46, whole camera lens 414 are sequentially adjusted in
Imaging focal length and light source 48 light intensity, under the action of camera 41, through high-intensitive pressure-resistant transparency glass plate 35 in computer
The contact surface speckle image of clear tire tread rubber 5 is obtained on screen；
(5), image mark is carried out after obtaining the speckle image of tire tread rubber sample 5 on computers by camera 41
It is fixed；
(6), the motor 23 of regulating mechanism 2 and the rotating electric machine 36 of rotation load regulating mechanism 3 are loaded by control straight line,
Make the lower surface and the surface for the tire tread rubber sample 5 for there are speckle textural characteristics through high-intensitive pressure-resistant transparency glass plate 35
After contact, contacted in revolving speed and the direction of rotation by control rotating electric machine 36 and motor 23, realization with tire tread rubber 5
Under certain vertical deviation load, make the rotary motion through 35 output variable speed rate of high-intensitive pressure-resistant transparency glass plate, thus
It is shear-deformable to simulate the equivalent tread-rubber material of tire actual use operating condition；
(7), the resolution ratio and frame per second of camera 41 are adjusted.During the operating condition of step 6 is realized, by camera 41 and calculate
Machine is synchronously completed and is obtained according to 5 universe warped digital image of time series tire tread rubber every a preset time interval
It takes.At the same time, tire tread sample 5 is obtained by angular encoder 21, pressure sensor 7 and torque sensor 8 to deform
Cheng Zhong obtains the data of angular displacement, pressure and torque.
(8), by digital picture template matching technique, to the 5 universe warped digital figure of tire tread rubber at current time
Picture and the 5 universe deformation pattern of tire tread rubber of last moment compare and analyze, and obtain 5 adjacent moment of tire tread rubber
Universe strain information obtains the deformation of tire tread rubber 5 in conjunction with the uncalibrated image of front.
(9), comprehensive analysis obtain angular displacement, pressure, torque data and tire tread rubber 5 deformation data, obtain
Distribution of the tread-rubber in contact trace interior mechanics feature under tire shearing operating condition.
Embodiment 3:
As shown in Figure 13,14,15,17 and 18, universe compression shear Coupling Deformation exists in tire tread rubber material trace
Wire testing method, its step are as follows:
(1), it is spontaneously dried according to the shape of tire tread rubber sample 5 in contact surface spray paint speckle texture；
(2), the adaptive completion of clamp system 6 is adjusted to the locating clip of the tread-rubber sample 5 comprising speckle textural characteristics
Tightly；
(3), the turbine of the camera 41 of vision detection system 4 and the optical axis of light source 48, rotation load regulating mechanism 3 is adjusted
The axis of worm screw turntable 32 and the geometric center lines of tire tread rubber sample 5 after making three axis collinears, adjust straight line load
The support base 410 for saving the first support plate 213 of mechanism 2, torque sensor 8 and vision detection system 4 is solid with support platform 1 respectively
Fixed connection；
(4), the camera support 42 of vision detection system 4 and the image-forming range of light source bracket 46, whole camera lens 414 are sequentially adjusted in
Imaging focal length and light source 48 light intensity, under the action of camera 41, through high-intensitive pressure-resistant transparency glass plate 35 in computer
The contact surface speckle image of clear tire tread rubber 5 is obtained on screen；
(5), image mark is carried out after obtaining the speckle image of tire tread rubber sample 5 on computers by camera 41
It is fixed；
(6), the motor 23 of regulating mechanism 2 and the rotating electric machine 36 of rotation load regulating mechanism 3 are loaded by control straight line,
Make the lower surface and the surface for the tire tread rubber sample 5 for there are speckle textural characteristics through high-intensitive pressure-resistant transparency glass plate 35
After contact, in revolving speed and the direction of rotation by control rotating electric machine 36 and motor 23, make through high-intensitive pressure-resistant transparent glass
The rotary motion of 35 output variable speed rate of plate and the compound motion of parameter rate vertically moved, to simulate tire actual use work
The equivalent tread-rubber material compression shear Coupling Deformation of condition；
(7), the resolution ratio and frame per second of camera 41 are adjusted.During the operating condition of step 6 is realized, by camera 41 and calculate
Machine is synchronously completed and is obtained according to 5 universe warped digital image of time series tire tread rubber every a preset time interval
It takes.At the same time, tire tread sample 5 is obtained by angular encoder 21, pressure sensor 7 and torque sensor 8 to deform
Cheng Zhong obtains the data of angular displacement, pressure and torque.
(8), by digital picture template matching technique, to the 5 universe warped digital figure of tire tread rubber at current time
Picture and the 5 universe deformation pattern of tire tread rubber of last moment compare and analyze, and obtain 5 adjacent moment of tire tread rubber
Universe strain information obtains the deformation of tire tread rubber 5 in conjunction with the uncalibrated image of front.
(9), comprehensive analysis obtain angular displacement, pressure, torque data and tire tread rubber 5 deformation data, obtain
Distribution of the tread-rubber in contact trace interior mechanics feature under tire compression shear coupling operating condition.
As shown in Figure 14 and Figure 15, be the utility model test device obtain in t=0 moment and t=t0Tire
The contact surface speckle image of trace inner tread rubbery sample 5 is contacted, Figure 14 is to obtain tire on computers by camera 41
The speckle image of tread-rubber sample 5 carries out image calibration, and Figure 15 is to simulate actual wheel by the test device of the utility model
Tire contacts the tread-rubber applying working condition in trace, and tire tread rubber sample 5 is in extrusion deformation, the coupling of shear-deformable and compression shear
The contact surface speckle image obtained under the different operating conditions of deformation, at the universe deformation pattern of tire tread rubber sample 5
Reason.
As shown in figure 16, it is single-point tire by obtaining in 5 fixed resistance strain measurement method of tread-rubber sample
Tyre surface deformation data, the test point mark in Figure 17 and Figure 18, and when the result can be with Figure 17 and Figure 18 corresponding
The deformation data at quarter is consistent, demonstrates the correctness of the detection method of the utility model.
It as shown in Figure 17 and Figure 18, is by digital picture template matching technique, to t0The tire tread rubber 5 at moment is complete
The 5 universe deformation pattern of tire tread rubber of area deformation digital picture and t moment compares and analyzes, and obtains tire tread rubber
5 adjacent moment universe strain informations obtain the universe change of tire tread rubber 5 in conjunction with the uncalibrated image at the t=0 moment of acquisition
Shape.
Claims (4)
1. universe deforms online testing device in a kind of tire tread rubber material trace, it is characterised in that: including support
Platform (1), straight line load regulating mechanism (2), rotation load regulating mechanism (3), vision detection system (4), adaptive clamping machine
Structure (6), pressure sensor (7), torque sensor (8) and computer, straight line load regulating mechanism (2) pass through first
Fagging (213) is fixed on support platform (1), and the vision detection system (4) is fixed on support by support base (410) and puts down
On platform (1), rotation load regulating mechanism (3) passes through the connection of fixed bracket (31) and straight line load regulating mechanism (2)
Plate (210) is fixedly connected, and the torque sensor (8) is fixed in support platform, and the pressure sensor (7) is fixed to be connected
It connects above torque sensor (8), the adaptive clamp system (6) is fixedly connected on above pressure sensor (7), vision
The camera (41) of detection system (4) and the optical axis of light source (48), rotation load the turbine and worm turntable (32) of regulating mechanism (3)
Axis and the center line of tire tread rubber sample (5) be same straight line, described straight line load regulating mechanism (2) includes
Angular encoder (21), motor (23), active synchronization belt wheel (24), passive and synchronous belt wheel (26), lead screw shaft bearings (27), lead screw
(28), sliding block (29), connecting plate (210), screw (211), trapezoidal line slide rail (212) and the first support plate (213)；Described
Angular encoder (21) and motor (23) are fixedly connected on the side of the first support plate (213), angular coding by bracket (22)
Corresponding hole location is fixedly connected with the shaft of motor (23) on device (21), and the shaft of active synchronization belt wheel (24) and motor (23) is solid
Fixed connection, active synchronization belt wheel (24) is by passing through the synchronous toothed belt (25) of the through-hole on the first support plate (213) and supporting
The passive and synchronous belt wheel (26) of the plate other side connects, and passive and synchronous belt wheel (26) is fixedly connected with lead screw (28), upper and lower two silks
Thick stick bearing block (27) and lead screw (28) form revolute, and lead screw shaft bearings (27) are fixedly connected with the first support plate (213), lead screw
(28) it is threadedly coupled with screw (211), screw (211) is fixedly connected with connecting plate (210), sliding block (29) and connecting plate (210)
It is fixedly connected, trapezoidal line slide rail (212) and sliding block (29) form prismatic pair, trapezoidal line slide rail (212) and the first support plate
(213) it is fixedly connected, the angular encoder (21) of straight line load regulating mechanism (2), rotation load regulating mechanism (3)
Magnetic scale rotary angle transmitter (39), pressure sensor (7) and torque sensor (8) pass through data collecting card and computer communication respectively
Connection, the motor (23) and rotating electric machine (36) are connected by driver and computer control respectively, the camera
(41) it is connected with light source (48) with computer control.
2. universe deforms online testing device in a kind of tire tread rubber material trace as described in claim 1,
Be characterized in that: described rotation load regulating mechanism (3) is by the fixation bracket (31), the turbine that are fixedly connected with connecting plate (210)
Worm screw turntable (32), magnetic scale (33), support plate (34), high-intensitive pressure-resistant transparency glass plate (35), rotating electric machine (36), sensor
Bracket (38) and magnetic scale rotary angle transmitter (39) composition；The stator of fixed bracket (31) and turbine and worm turntable (32) is fixed to be connected
Connect, magnetic scale (33) is fixedly connected with support plate (34), circular ring shape support plate (34) and high-intensitive pressure-resistant transparency glass plate (35) according to
The secondary rotor with turbine and worm turntable (32) is fixedly connected, and the diameter of high-intensitive pressure resistance transparency glass plate (35) is greater than support plate
(34) annular diameters, rotating electric machine (36) are fixedly connected by shaft coupling (37) with the worm screw shaft of turbine and worm turntable (32),
Sensor stand (38) is fixedly connected with the stator of turbine and worm turntable (32), sensor stand (38) and magnetic scale rotary angle transmitter
(39) it is fixedly connected, magnetic scale rotary angle transmitter (39) and magnetic scale (33) gap are maintained in the range of 0.5mm~2mm.
3. universe deforms online testing device in a kind of tire tread rubber material trace as described in claim 1,
Be characterized in that: the vision detection system (4) is by camera (41), camera support (42), adjusting bolt (43), adjusting nut
(44), contact pins (45), light source bracket (46), light source support rod (47), light source (48), support rod (49), support base
(410), support rod positioning bolt (413) forms；Be fixedly connected with camera lens (414) on the camera (41), camera (41) with
Left and right arrangement contact pins (45) connect, adjust bolt (43) pass through camera support (42) two sides long strip through hole with connect
Touch pad piece (45) is threadedly coupled, and adjusting nut (44) is threadedly coupled with bolt (43) are adjusted, camera support (42) and support rod
(49) prismatic pair is formed, camera support (42) is fixed on support rod (49) by camera positioning bolt (411), light source bracket
(46) prismatic pair is formed with support rod (49), light source bracket (46) passes through light source positioning bolt (412) screw thread and support rod (49)
Connection, the light source support rod (47) being arranged symmetrically and light source bracket (46) connect by the way that light source support rod positioning bolt (415) is fixed
It connects, support rod (49) and support base (410) form prismatic pair, and support base (410) is fixedly connected with support platform (1), support rod
Positioning bolt (413) is threadedly coupled with support base (410).
4. universe deforms online testing device in a kind of tire tread rubber material trace as described in claim 1,
Be characterized in that: the adaptive clamp system (6) is by trapezoidal guide block (61), spring (62), the second support plate (63), preload spiral shell
Bolt (64), locking nut (65) and clamping bracket (66) composition, the trapezoidal guide block (61) being arranged symmetrically and clamping bracket (66) group
Be in line prismatic pair, clamps bracket (66) and is fixedly connected with the second support plate (63) being arranged symmetrically, spring (62) is nested with pre-
Center line is overlapped on tight bolt (64), and (62) one side end face of spring is contacted with trapezoidal guide block (61), spring (62) another side end face
It is contacted with the second support plate (63), pretension bolt (64) is threadedly coupled with the second support plate (63), the cylinder of pretension bolt (64)
Face hole location corresponding with trapezoidal guide block (61) forms revolute, locking nut (65) end face and the second support plate (63) end face outside
Contact, locking nut (65) are threadedly coupled with pretension bolt (64).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342134.1U CN208968931U (en) | 2018-08-20 | 2018-08-20 | Universe deforms online testing device in tire tread rubber material trace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342134.1U CN208968931U (en) | 2018-08-20 | 2018-08-20 | Universe deforms online testing device in tire tread rubber material trace |
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| CN208968931U true CN208968931U (en) | 2019-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385282A (en) * | 2019-07-10 | 2019-10-29 | 浙江大学 | Fifth wheel vision detection system and method in Automatic manual transmission based on deep learning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385282A (en) * | 2019-07-10 | 2019-10-29 | 浙江大学 | Fifth wheel vision detection system and method in Automatic manual transmission based on deep learning |
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