CN109269928A - A kind of tire wear testing machine and its detection method - Google Patents
A kind of tire wear testing machine and its detection method Download PDFInfo
- Publication number
- CN109269928A CN109269928A CN201811241929.8A CN201811241929A CN109269928A CN 109269928 A CN109269928 A CN 109269928A CN 201811241929 A CN201811241929 A CN 201811241929A CN 109269928 A CN109269928 A CN 109269928A
- Authority
- CN
- China
- Prior art keywords
- tire
- sample
- tearing
- load
- tire sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 title claims description 43
- 238000004088 simulation Methods 0.000 claims abstract description 39
- 238000005299 abrasion Methods 0.000 claims abstract description 37
- 238000005070 sampling Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002372 labelling Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000003708 edge detection Methods 0.000 claims description 3
- 239000011214 refractory ceramic Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 239000010426 asphalt Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000017105 transposition Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000001739 rebound effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Classifications
-
- 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
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
Abstract
The invention discloses a kind of tire wear testing machine, including rack, driving device, Road quality simulation loading device and tire sample, rack is arranged on the ground, for carrying driving device and Road quality simulation loading device；Driving device is located at rack upper surface, for driving and controlling the rotation of tire sample；Road quality simulation loading device is arranged on the rack surface, load is on tire sample, for simulating tire sample in the high-intensitive abrasion torn under road conditions, particularly, the rack upper surface between articulated stand and driving device is arranged in load cylinder, load cylinder top is connect with load lever, for loading the tire wear on lever-loading tearing block to tire sample under simulation varying strength tearing environment.The present invention makes tire sample in the case where experience high tearing, while being shaken the simulation of rebound, has high-efficient, the true advantage of measurement result by means of height tearing Road quality simulation and vibration rebound simulation.
Description
Technical field
The invention belongs to tire testing technique fields, and particularly, being related to one kind, to can be achieved at the same time automatic measurement tire resistance to
The tire wear testing machine of abrasion ability and tire lear energy.
Background technique
With worldwide vehicle increase and the growth of type, the type of rubber tyre are increasing, requirement is also got over
Come harsher.It is well known that an important factor for abrasion performance of tire is decision tyre last,
Domestic tire wear testing machine is divided into three types at present: (1) traditional rotary drum tyre tester: being suitable for wheel
The research of stable state and unstable state mechanical characteristic when tire high, low speed, since drum surface has curvature, there are areas with true road surface
Not, the influence that drum surface curvature can be only ignored when roller diameter is sufficiently large leads to rotary drum tire test machine equipment body
Product is huge；(2) it flat tyre tester: suitable for the research of tire mechanical characteristic in low speed, but can only carry out smaller
The test of speed causes flat tyre tester that can not adapt to tire high-speed test (HST)；(3) flat rubber belting formula tyre tester: overcome
Flat disadvantage, is able to carry out tire high-speed test (HST), but cost is high, and tested steel band fatiguability damages, above-mentioned tire
The experiment simulation of abrasiometer needs to substantially meet in " automobile tire road abrasion test method GB/T 29041-2012 "
It is required that wherein the selection of tire test road is the road of cement or asphalt paving, that is to say, that existing tire wear examination
The simulation test that the machine of testing is carried out all is the test simulating tire and carrying out under smooth cement or asphalt roads road conditions, hence it is evident that different
Tire wear under actual road conditions.
A kind of tire is disclosed in the patent that publication No. is CN107860673 and road surface is inscribed, the replaceable simulation wheel in road surface
The tire wear testing machine of tire abrasion mainly is used to simulate Wheel slip operating condition by the way that survey deflection platform is arranged on front side of rotary drum, on
It states tire wear testing machine and is able to carry out different loads, friction speed and by replacement test pavement simulating tire normally travel and side
Tire wear experiment under inclined operating condition.
Meanwhile tire lear energy is one of the key factor for determining rubber tyre quality, the lear energy of tire
Power will directly affect the service life and safety coefficient of rubber tyre, and then the quality of rubber tyre is influenced, high-strength
Under the tearing operating condition of degree, tire wear and tire tearing influence each other, so abrasion situation of the simulation tire in the case where tearing operating condition
It is necessary.
Meanwhile tire is while the car is driving, unavoidably by road surface rebound effect, especially traveling is in bumpy road
Section, such as the real work section of offroad vehicle, engineering truck, tire is worn away in the case where vibration rebounds environment.
The parameter for needing to record in existing automobile tire road abrasion test method include but is not limited to respectively with transposition
The corresponding overall diameter of mileage, section be wide, pattern depth, gross mass, abrasion, dynamic balancing, and test measurement expends a large amount of manpower objects
Power, the test period is long, and test process is complicated.
The parameter for needing to record in existing automobile tire road abrasion test method include but is not limited to respectively with transposition
The corresponding overall diameter of mileage, section be wide, pattern depth, gross mass, abrasion, dynamic balancing, and test measurement expends a large amount of manpower objects
Power, the test period is long, and test process is complicated.
The parameter for needing to record in existing automobile tire road abrasion test method include but is not limited to respectively with transposition
The corresponding overall diameter of mileage, section be wide, pattern depth, gross mass, abrasion, dynamic balancing, and test measurement expends a large amount of manpower objects
Power, the test period is long, and test process is complicated.
Current tire wear measurement generally using the method for range estimation, evaluation result from people intuitive judgment, artificially
Factor is big, not can guarantee accuracy, and in addition there are the contact type measurements that testing staff is carried out with pattern depth ruler, but
Measurement data can be caused to generate error due to the error of the operating method and pattern depth ruler itself of testing staff, it is existing special
Sharp publication No. CN106802134 disclose it is a kind of utilize laser line generator and sampling camera binding test surface of tyre decorative pattern abrasion
Measuring device and measurement method, but it is merely able to the abrasion variation of detection tire pattern portion position, without tire tearing feature
Identification function cannot achieve the detection of tire abrasion loss under tearing operating condition.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, and tire can be simulated in high intensity tearing by providing one kind
Under road conditions, while being shaken the tire wear testing machine of rebound simulation.
The present invention solves technical solution used by above-mentioned the deficiencies in the prior art:
A kind of tire wear testing machine, including rack, driving device, Road quality simulation loading device and tire sample,
The rack is arranged on the ground, for carrying the driving device and the Road quality simulation loading device；
The driving device is located at rack upper surface, for driving and controlling the rotation of tire sample；
The Road quality simulation loading device is arranged on the rack surface, loads on the tire sample, for simulating
Tire sample is stated in the high-intensitive abrasion operating condition torn under road conditions.
Preferably, the rack is built by profile, and the bottom of the frame is provided with makes an uproar for reducing device vibration and experiment
The damping device of sound.
Preferably, the driving device includes motor, reduction gearbox, shaft coupling, stationary hub, is subtracted described in the motor drive
Fast case rotation, the reduction gearbox are connected by shaft coupling with the stationary hub, and the tire sample is fixed on the fixation
On wheel hub；
It further include host computer, the motor movement parameter is by PC control.
Preferably, the Road quality simulation loading device includes articulated stand, load cylinder, load lever, tearing block；
The articulated stand is mounted on the rack the one end of surface far from the driving device；
The articulated stand is that fixed transfer seat is equipped on aluminium alloy extrusions, with the rack contact surface, described hinged
The fixation hole with fixed transfer seat cooperation is provided on bracket, for realizing the rigidity of the articulated stand and the rack
Connection；
The hinged disk for fixing described load lever one end, the hinged disk and institute are additionally provided on the articulated stand
It states articulated stand to be fixedly connected, the load lever is with the hinged disk center rotating；The load lever is far from described hinged
One end of bracket is provided with tearing block, the tearing block and the tire sample contacts, for simulating the tire under tearing operating condition
Sample abrasion；
The rack upper surface between the articulated stand and the driving device is arranged in the load cylinder, described
Load cylinder top is connect with the load lever, is simulated on tearing block to the tire sample described in lever-loading for loading
Varying strength tears the tire wear under environment.
It preferably, further include non-contact detection device, non-contact detection device, contactless includes being based on cable architecture ray machine
Device vision is used for tire for the First look detection system of tire specimen surface Abrasion detecting and based on machine vision
Second vision detection system of specimen surface tear(ing) strength detection.
Preferably, described load is provided with adding through described for load cylinder top connection on lever lower surface
Carry the fixed groove in lever length direction；
The tearing block is fixed on the fixed groove of the load lever by pinboard.
Preferably, the tearing block is the wedge type block of refractory ceramics material.
Preferably, the load cylinder includes air inlet and piston rod, and the air inlet enters described in compressed air promotion
Piston rod moves downward, and drives the tearing block load for the load lever, is provided with check valve at the air inlet, institute
It states and constitutes gas spring at the space between the piston cylinder and air inlet of load cylinder, the gas spring realizes the tearing block
Rebound simulation between the tire sample.
Preferably, the CCD industrial camera is arranged in the plane of tire sample side, the CCD industrial camera
Lens axis it is parallel with the axis of the tire sample.
Preferably, the First look detection system includes laser line generator and is arranged with the laser line generator same plane
Plane where first sampling camera, the laser line generator and the first sampling camera is located at below tire sample, place plane
Tangent with the tire sample, the laser line generator and the first sampling camera are separately positioned on tire sample two sides；
Steps are as follows for the abrasion of the First look system detection tire sample:
Step 110: mould is imaged in the image that the line laser projects the tire sample gabarit to the first sampling camera
Block；
Step 120: the load cylinder pushes the tearing block on the load lever far from the tire sample, rotation
Turn the tire sample one week, demarcates the tire sample gabarit image at each moment in the tire rotary course, the wheel
Tire sample gabarit image obtains light stripe centric line by the processing of light intensity method of comparison by image processing module, and obtains each moment light
The coordinate of each pixel on center line；
Step 130: the load cylinder pulls the tearing block on the load lever to load the tire sample
Abrasion control the tire sample with the revolving speed rotation in step 120, and the tire sample gabarit image is by image processing module
It is handled by light intensity method of comparison and obtains light stripe centric line, and obtain the coordinate of each pixel on each moment light stripe centric line；
Step 130: compare the tire sample rotate a circle interior each moment point the tire sample gabarit striation
The coordinate of each pixel on center line；
Step 140: the wear intensity of the tire sample gabarit is judged by the comparison of each pixel coordinate.
Preferably, second vision detection system includes light filling laser and the second sampling camera, the light filling laser
Device and the second sampling camera are located at tire sample the same side, and the light filling laser is with the second camera angle
30 °~90 °, optimal is 60 °；
Second vision detection system is used to detect the tear(ing) strength of tire specimen surface, and steps are as follows:
Step 210: the light filling laser works, the second camera acquire the tire specimen surface image in real time；
Step 220: the load cylinder pushes the tearing block on the load lever far from the tire sample, rotation
Turn the tire sample one week, demarcates the tire specimen surface image at each moment in the tire rotary course, shape
At the unfolded image of the tire specimen surface；
Step 230: edge detection, edge filter and edge labelling, label step are carried out to the unfolded image that step 220 obtains
Image in rapid 200 is standard picture, forms benchmark image, records tire sample edge width values；
Step 240: the load cylinder pulls the tearing block on the load lever to load the tire sample
Abrasion control the tire sample with the revolving speed rotation in step 220, acquire and formed the test chart of the tire specimen surface
Picture；
Step 250: the tearing distance value between any two sections of edges after calculating the edge labelling in test image will be torn
The threshold value comparison of distance value and edge width values and setting is split, if tearing distance value and the absolute value of edge width values difference are not
Greater than given threshold, then determine that tire specimen surface is not torn, otherwise judges that surface of tyre is torn；
Step 260: the tearing operating condition degree by designing tire sample described in different adjusting thresholds.
Preferably, the tire sample is the scaled down tire product of off-the-highway tire or engineering tyre.
Compared with the existing technology, beneficial effects of the present invention are as follows:
1. the present invention makes tire sample in the high tearing of experience by means of height tearing Road quality simulation and vibration rebound simulation
In the case of, while it being shaken the simulation of rebound, there is high-efficient, the true advantage of measurement result；
It is light, at low cost, intensity is high 2. frame support structure of the present invention is all made of aluminium alloy extrusions；
3. the present invention completes the detection of tire wear amount by non-contact measurement, experimental period is greatly saved.
Detailed description of the invention
The schematic perspective view of tire wear testing machine in Fig. 1 one embodiment of the present invention；
The positive structure diagram of tire wear testing machine in Fig. 2 one embodiment of the present invention；
The right of tire wear testing machine that Machine Vision Detection is provided in Fig. 3 one embodiment of the present invention shows depending on structure
It is intended to；
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right" etc. indicate
Orientation and positional relationship be the orientation or positional relationship based on attached drawing, be merely for convenience of description of the present invention and simplification of the description,
Rather than the device or component of indication or suggestion meaning must have a particular orientation, and be constructed and operated in a specific orientation,
Therefore it should not be understood as limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, and cannot understand
For index or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " etc. can explicitly or implicitly include one or more this feature.In the description of the present invention, unless
It is otherwise noted, " several " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even " " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected, can
To be mechanical connection, it is also possible to be electrically connected；It can be oneself connection, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Domestic tire wear testing machine is divided into three types at present: (1) traditional rotary drum tyre tester: being suitable for wheel
The research of stable state and unstable state mechanical characteristic when tire high, low speed, since drum surface has curvature, there are areas with true road surface
Not, the influence that drum surface curvature can be only ignored when roller diameter is sufficiently large leads to rotary drum tire test machine equipment body
Product is huge；(2) it flat tyre tester: suitable for the research of tire mechanical characteristic in low speed, but can only carry out smaller
The test of speed causes flat tyre tester that can not adapt to tire high-speed test (HST)；(3) flat rubber belting formula tyre tester: overcome
Flat disadvantage, is able to carry out tire high-speed test (HST), but cost is high, and tested steel band fatiguability damages, above-mentioned tire
The experiment simulation of abrasiometer needs to substantially meet in " automobile tire road abrasion test method GB/T 29041-2012 "
It is required that wherein the selection of tire test road is the road of cement or asphalt paving, that is to say, that existing tire wear examination
The simulation test that the machine of testing is carried out all is the test simulating tire and carrying out under smooth cement or asphalt roads road conditions, hence it is evident that different
Tire wear under actual road conditions.
A kind of tire is disclosed in the patent that publication No. is CN107860673 and road surface is inscribed, the replaceable simulation wheel in road surface
The tire wear testing machine of tire abrasion mainly is used to simulate Wheel slip operating condition by the way that survey deflection platform is arranged on front side of rotary drum, on
It states tire wear testing machine and is able to carry out different loads, friction speed and by replacement test pavement simulating tire normally travel and side
Tire wear experiment under inclined operating condition.
Meanwhile tire lear energy is one of the key factor for determining rubber tyre quality, the lear energy of tire
Power will directly affect the service life and safety coefficient of rubber tyre, and then the quality of rubber tyre is influenced, high-strength
Under the tearing operating condition of degree, tire wear and tire tearing influence each other, so abrasion situation of the simulation tire in the case where tearing operating condition
It is necessary.
Meanwhile tire is while the car is driving, unavoidably by road surface rebound effect, especially traveling is in bumpy road
Section, such as the real work section of offroad vehicle, engineering truck, tire is worn away in the case where vibration rebounds environment.
In view of the above technical problems, as shown in FIG. 1 to 3, the present invention provides a kind of tire wear testing machines, including machine
Frame 10, driving device 20, Road quality simulation loading device 30 and tire sample 40,
Rack 10 is arranged on the ground, for carrying driving device 20 and Road quality simulation loading device 30；
Driving device 20 is located at 10 upper surface of rack, rotates for driving and controlling tire sample 40；
The setting of Road quality simulation loading device 30 loads on tire sample 40, in 10 upper surface of rack for simulating tire
Sample 40 is in the high-intensitive abrasion operating condition torn under road conditions.
In one particular embodiment of the present invention, rack 10 is built by profile, 10 bottom of rack be provided with for reducing
The damping device of device vibration and experimental noise, common profile are aluminium alloy extrusions, and the damping device generally selected is rubber
Damp footed glass.
In one particular embodiment of the present invention, driving device 20 includes motor 21, reduction gearbox 22, shaft coupling 23, consolidates
Fixed wheel hub 24, motor 21 drive reduction gearbox 22 to rotate, and reduction gearbox 22 is connected by shaft coupling 23 with stationary hub 24, tire
Sample 40 is fixed in stationary hub 24；
Wherein the driving of tire sample 40 uses alternating current generator 21, facilitates control revolving speed, under analog difference vehicle speed condition,
To the high Splitting of tire.
It further include host computer, 21 kinematic parameter of motor is by PC control.
In one particular embodiment of the present invention, Road quality simulation loading device 30 includes articulated stand 31, load cylinder
32, lever 33, tearing block 34 are loaded；
Articulated stand 31 is mounted on the one end of 10 upper surface of rack far from driving device 20；
Articulated stand 31 is that fixed transfer seat is equipped on aluminium alloy extrusions, with 10 contact surface of rack, on articulated stand 31
It is provided with the fixation hole with the cooperation of fixed transfer seat, for realizing the rigid connection of articulated stand 31 and rack 10；
Frame support structure of the present invention is all made of aluminium alloy extrusions, light, at low cost, intensity is high；
The hinged disk for fixed load 33 one end of lever, hinged disk and articulated stand 31 are additionally provided on articulated stand 31
It is fixedly connected, loads lever 33 with hinged disk center rotating；It loads lever 33 and one end of articulated stand 31 is provided with tearing
Block 34, tearing block 34 are contacted with tire sample 40, are worn away for simulating the tire sample 40 under tearing operating condition；
10 upper surface of rack between articulated stand 31 and driving device 20 is arranged in load cylinder 32, and load cylinder 32 pushes up
End is connect with load lever 33, loads simulation varying strength tearing ring on tearing block 34 to tire sample 40 for loading lever 33
Tire wear under border.
In one particular embodiment of the present invention, it loads to be provided on 33 lower surface of lever and be pushed up for loading cylinder 32
The fixed groove through load 33 length direction of lever of end connection；
Block 34 is torn to be fixed to by pinboard on the fixed groove of load lever 33.
In one particular embodiment of the present invention, tearing block 34 is the wedge type block of refractory ceramics material.
In one particular embodiment of the present invention, load cylinder 32 includes air inlet and piston rod, and air inlet enters pressure
Contracting air push piston rod moves downward, and drives tearing block 34 to load for loading lever 33, is provided with check valve at air inlet,
It loads and constitutes gas spring at the space between the piston cylinder and air inlet of cylinder 32, gas spring realizes tearing block 34 and tire
Rebound simulation between sample 40, compared to the constant load compression test that the country is commonly used, this machinery load cylinder 32
Realize the load of dynamic load lotus, closer to actual road conditions, data are more credible.
The present invention may be implemented by adjusting the piston rod reciprocating frequency of load cylinder 32 to different road conditions simultaneously
Simulation makes tire sample 40 in the case where experience high tearing, together by means of height tearing Road quality simulation and vibration rebound simulation
When be shaken the simulation of rebound, there is high-efficient, the true advantage of measurement result；
In one particular embodiment of the present invention, tire sample 40 is the scaled down of off-the-highway tire or engineering tyre
Tire product.
Cost needed for being greatly reduced experiment using tire sample 40, and will not influence the completion of experiment purpose,
When what existing tyre tester used is all actual tire, the tire especially travelled in high tearing road conditions is not engineering tire
It is exactly cross-country tire, experiment operating cost is excessively high.
And the parameter for needing to record in existing automobile tire road abrasion test method include but is not limited to respectively with
Replacing, the corresponding overall diameter of mileage, section be wide, pattern depth, gross mass, abrasion, dynamic balancing, and test measurement expends a large amount of people
Power material resources, the test period is long, and test process is complicated.
It in one particular embodiment of the present invention, further include non-contact detection device, non-contact detection device is non-contact
Formula includes the First look detection system and base for tire specimen surface Abrasion detecting based on line-structured light machine vision
In the second vision detection system for the detection of tire specimen surface tear(ing) strength of machine vision；
First look detection system includes laser line generator 51 and the first sampling phase with the setting of 51 same plane of laser line generator
Machine 52, laser line generator 51 and the first sampling 52 place plane of camera are located at below tire sample, place plane and tire sample phase
It cuts, laser line generator 51 and the first sampling camera 52 are separately positioned on tire sample two sides；
Steps are as follows for the abrasion of First look system detection tire sample:
Step 110: line laser projects tire sample gabarit to the image image-forming module of the first sampling camera 52；
Step 120: load cylinder pushes the tearing block on load lever far from tire sample, rotates tire sample one week,
The tire sample gabarit image at each moment in tire rotary course is demarcated, tire sample gabarit image is by image processing module
It is handled by light intensity method of comparison and obtains light stripe centric line, and obtain the coordinate of each pixel on each moment light stripe centric line；
Step 130: load cylinder pulls the tearing block on load lever to load tire sample and wears away, and controls tire sample
With the revolving speed rotation in step 120, tire sample gabarit image obtains light by the processing of light intensity method of comparison by image processing module
Center line, and obtain the coordinate of each pixel on each moment light stripe centric line；
Step 130: comparative tire sample rotate a circle interior each moment point tire sample gabarit light stripe centric line on
The coordinate of each pixel；
Step 140: the wear intensity of tire sample gabarit is judged by the comparison of each pixel coordinate.
First look system detection tire sample abrasion is using dynamic detection process is belonged to, by the swing circle of tire sample
It is stored with the first sampling collected light stripe centric line coordinate value comprising modules data cell of camera 52, and is directly utilized
Image coordinate value compares, abrasion loss of the obtained maximum value in each coordinate value difference as tire sample；
Second vision detection system includes light filling laser 61 and the second sampling camera 62, light filling laser 61 and second
Sampling camera 62 is located at tire sample the same side, and light filling laser 61 and second camera angle are 30 °~90 °, and optimal is 60 °；
Second vision detection system is used to detect the tear(ing) strength of tire specimen surface:
Step 210: light filling laser 61 works, and second camera acquires tire specimen surface image in real time；
Step 220: load cylinder pushes the tearing block on load lever far from tire sample, rotates tire sample one week,
The tire specimen surface image at each moment in tire rotary course is demarcated, the unfolded image of tire specimen surface is formed；
Step 230: edge detection, edge filter and edge labelling, label step are carried out to the unfolded image that step 220 obtains
Image in rapid 200 is standard picture, forms benchmark image, records tire sample edge width values；
Step 240: load cylinder pulls the tearing block on load lever to load tire sample and wears away, and controls tire sample
With the revolving speed rotation in step 220, the test image of tire specimen surface is acquired and formed；
Step 250: the tearing distance value between any two sections of edges after calculating the edge labelling in test image will be torn
The threshold value comparison of distance value and edge width values and setting is split, if tearing distance value and the absolute value of edge width values difference are not
Greater than given threshold, then determine that tire specimen surface is not torn, otherwise judges that surface of tyre is torn；
Step 260: the tearing operating condition degree by designing different adjusting thresholds tire samples.
First look system in the present invention tries tire the detection of tire sample abrasion and the second vision system
The tearing detection of sample carries out simultaneously, wherein the load of the threshold value control load cylinder set in the second vision system, when tearing
When splitting arrival given threshold, it can stop tearing loading procedure, but First look system is more accurately taken turns still in adhering to
The abrasion of tire sample.
Furthermore in one particular embodiment of the present invention, the plane of 40 side of tire sample is arranged in CCD industrial camera
It is interior, it is detected for the outer diameter to tire sample, the lens axis of CCD industrial camera is parallel with the axis of tire sample 40,
The present invention completes the detection of tire wear amount by non-contact measurement, and experimental period is greatly saved.
Steps are as follows for non-contact detection device therein:
Step 100: in the spray speckle in surface to be measured of tire sample 40；
Step 200: setting up several cameras in surface side to be measured and complete to demarcate, while shooting tire sample 40 and transporting
Picture during row；
Step 300: passing the photo shot in step 200 back host computer and splice；
Step 400: obtaining the edge line coordinate set of tire sample 40 based on digital image correlation technique, realize for tire
The monitoring of 40 edge line position of sample, that is, detect the outer profile information of tire sample 40；
Step 500: building storage database, by the image information obtained by digital image correlation technique with time dimension and
The format of coordinate dimensions is stored in database, realizes the real time monitoring for the 40 outer profile degree of wear of tire sample.
Preferably, as follows the step of spray speckle in step 100:
Step 110: uniformly adhering to white paint on the surface to be measured of tire sample 40, form monochromatic clean and tidy imaging surface；
Step 120: the different speckle of random spray shape on 40 surface of tire sample, speckle spot maximum gauge range
For 2mm~5mm；
When shooting photo in step 200 and step 300, white light source is set up between tire sample 40 and camera.
In one particular embodiment of the present invention, the first sampling camera 52 and the second sampling camera 62 are CCD industry phase
Machine.
Furthermore in one particular embodiment of the present invention, the plane of 40 side of tire sample is arranged in CCD industrial camera
It is interior, it is detected for the outer diameter to tire sample, the lens axis of CCD industrial camera is parallel with the axis of tire sample 40,
The present invention completes the detection of tire wear amount by non-contact measurement, and experimental period is greatly saved.
Steps are as follows for non-contact detection device therein:
Step 100: in the spray speckle in surface to be measured of tire sample 40；
Step 200: setting up several cameras in surface side to be measured and complete to demarcate, while shooting tire sample 40 and running
Picture in the process；
Step 300: passing the photo shot in step 200 back host computer and splice；
Step 400: obtaining the edge line coordinate set of tire sample 40 based on digital image correlation technique, realize for tire
The monitoring of 40 edge line position of sample, that is, detect the outer profile information of tire sample 40；
Step 500: building storage database, by the image information obtained by digital image correlation technique with time dimension and
The format of coordinate dimensions is stored in database, realizes the real time monitoring for the 40 outer profile degree of wear of tire sample.
Preferably, as follows the step of spray speckle in step 100:
Step 110: uniformly adhering to white paint on the surface to be measured of tire sample 40, form monochromatic clean and tidy imaging surface；
Step 120: the different speckle of random spray shape on 40 surface of tire sample, speckle spot maximum gauge range
For 2mm~5mm；
When shooting photo in step 200 and step 300, white light source is set up between tire sample 40 and camera.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of tire wear testing machine, which is characterized in that
Including rack, driving device, Road quality simulation loading device and tire sample,
The rack is arranged on the ground, for carrying the driving device and the Road quality simulation loading device；
The driving device is located at rack upper surface, for driving and controlling the rotation of tire sample；
The Road quality simulation loading device is arranged on the rack surface, loads on the tire sample, for simulating the wheel
Tire sample is in the high-intensitive abrasion operating condition torn under road conditions；
The tire sample is the scaled down tire product of off-the-highway tire or engineering tyre.
2. tire wear testing machine according to claim 1, which is characterized in that
The rack is built by profile, and the bottom of the frame is provided with to be filled for reducing device vibration and the damping of experimental noise
It sets.
3. tire wear testing machine according to claim 1, which is characterized in that
The driving device includes motor, reduction gearbox, shaft coupling, stationary hub, and the motor drives the reduction gearbox rotation, institute
It states reduction gearbox and is connected by shaft coupling with the stationary hub, the tire sample is fixed in the stationary hub；
It further include host computer, the motor movement parameter is by PC control.
4. tire wear testing machine according to claim 1, which is characterized in that
The Road quality simulation loading device includes articulated stand, load cylinder, load lever, tearing block；
The articulated stand is mounted on the rack the one end of surface far from the driving device；
The articulated stand is to be equipped with fixed transfer seat on aluminium alloy extrusions, with the rack contact surface,
The fixation hole with fixed transfer seat cooperation is provided on the articulated stand, for realizing the articulated stand and institute
State the rigid connection of rack；
The hinged disk for fixing described load lever one end, the hinged disk and the hinge are additionally provided on the articulated stand
It connects bracket to be fixedly connected, the load lever is with the hinged disk center rotating；
The load lever is provided with tearing block far from one end of the articulated stand, and the tearing block connects with the tire sample
Touching, for simulating the tire sample abrasion under tearing operating condition；
The rack upper surface between the articulated stand and the driving device, the load is arranged in the load cylinder
Cylinder top is connect with the load lever, simulates difference on tearing block to the tire sample described in lever-loading for loading
Tire wear under Strength Tear's environment.
5. tire wear testing machine according to claim 1, which is characterized in that
It further include non-contact detection device, non-contact detection device, contactless includes the use based on line-structured light machine vision
In the First look detection system of tire specimen surface Abrasion detecting and tearing for tire specimen surface based on machine vision
Split the second vision detection system of degree detecting.
6. tire wear testing machine according to claim 4, which is characterized in that
It is provided with for load cylinder top connection on the load lever lower surface through the load lever length
The fixed groove in direction；
The tearing block is fixed on the fixed groove of the load lever by pinboard.
7. tire wear testing machine according to claim 4, which is characterized in that
The tearing block is the wedge type block of refractory ceramics material.
8. tire wear testing machine according to claim 4, which is characterized in that
The load cylinder includes air inlet and piston rod, and the air inlet enters compressed air and the piston rod is pushed to transport downwards
It is dynamic, the tearing block load is driven for the load lever, check valve is provided at the air inlet, the load cylinder
Gas spring is constituted at space between piston cylinder and air inlet, the gas spring realizes that the tearing block and the tire try
Rebound simulation between sample.
9. a kind of detection method of tire wear testing machine, it is characterised in that include the following steps,
First look detection system includes laser line generator and the first sampling camera with the setting of laser line generator same plane, line laser
Plane where device and the first sampling camera is located at tire sample lower section, and place plane and tire sample are tangent, laser line generator and the
One sampling camera is separately positioned on tire sample two sides；
Steps are as follows for the abrasion of First look system detection tire sample:
Step 110: line laser projects tire sample gabarit to the image image-forming module of the first sampling camera；
Step 120: load cylinder pushes the tearing block on load lever far from tire sample, rotates tire sample one week, calibration
The tire sample gabarit image at each moment in tire rotary course, tire sample gabarit image are passed through by image processing module
The processing of light intensity method of comparison obtains light stripe centric line, and obtains the coordinate of each pixel on each moment light stripe centric line；
Step 130: load cylinder pulls the tearing block on load lever to load tire sample and wears away, and controls tire sample with step
Revolving speed rotation in rapid 120, tire sample gabarit image are obtained in striation by image processing module by the processing of light intensity method of comparison
Heart line, and obtain the coordinate of each pixel on each moment light stripe centric line；
Step 130: comparative tire sample rotate a circle interior each moment point tire sample gabarit light stripe centric line on each picture
The coordinate of element；
Step 140: the wear intensity of tire sample gabarit is judged by the comparison of each pixel coordinate.
10. the detection method of tire wear testing machine according to claim 9, it is characterised in that include the following steps,
It further include the second vision detection system, second vision detection system includes that light filling laser and second sample camera,
Light filling laser and the second sampling camera are located at tire sample the same side, and light filling laser and second camera angle be 30 °~
90 °, optimal is 60 °；
Second vision detection system is used to detect the tear(ing) strength of tire specimen surface, and steps are as follows:
Step 210: light filling laser works, second camera acquire tire specimen surface image in real time；
Step 220: load cylinder pushes the tearing block on load lever far from tire sample, rotates tire sample one week, calibration
The tire specimen surface image at each moment in tire rotary course forms the unfolded image of tire specimen surface；
Step 230: edge detection, edge filter and edge labelling, markers step are carried out to the unfolded image that step 220 obtains
Image in 200 is standard picture, forms benchmark image, records tire sample edge width values；
Step 240: load cylinder pulls the tearing block on load lever to load tire sample and wears away, and controls tire sample with step
Revolving speed rotation in rapid 220, acquires and is formed the test image of tire specimen surface；
Step 250: calculate test image in edge labelling after any two sections of edges between tearing distance value, will tearing away from
Threshold value comparison from value and edge width values and setting, if tearing distance value and the absolute value of edge width values difference are not more than
Given threshold then determines that tire specimen surface is not torn, otherwise judges that surface of tyre is torn；
Step 260: the tearing operating condition degree by designing different adjusting thresholds tire samples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241929.8A CN109269928A (en) | 2018-10-19 | 2018-10-19 | A kind of tire wear testing machine and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241929.8A CN109269928A (en) | 2018-10-19 | 2018-10-19 | A kind of tire wear testing machine and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109269928A true CN109269928A (en) | 2019-01-25 |
Family
ID=65194232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241929.8A Pending CN109269928A (en) | 2018-10-19 | 2018-10-19 | A kind of tire wear testing machine and its detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109269928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702552A (en) * | 2019-11-12 | 2020-01-17 | 正新橡胶（中国）有限公司 | Abrasion device for tire rubber |
| CN111047560A (en) * | 2019-11-21 | 2020-04-21 | 深圳市优必选科技股份有限公司 | Test method and test system for universal wheel |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4144740A (en) * | 1978-05-01 | 1979-03-20 | The B. F. Goodrich Company | Testing apparatus and method for measuring cutting, chipping and abrasion resistance |
| CN2034543U (en) * | 1988-03-08 | 1989-03-22 | 段传忠 | Resilient air-cushion device |
| DE3901118A1 (en) * | 1989-01-16 | 1990-07-19 | Bayern Tech Ueberwach Verein | Device for determining the resistance to cutting and damage of the running surface of vehicle tyres |
| CN2423140Y (en) * | 2000-05-30 | 2001-03-14 | 丁建新 | Motor vehicle vibration damper |
| JP2006047075A (en) * | 2004-08-04 | 2006-02-16 | Yokohama Rubber Co Ltd:The | Abrasion test method and device for tire |
| CN101013074A (en) * | 2007-02-05 | 2007-08-08 | 华南理工大学 | Rubber abrasion test equipment |
| DE202010005855U1 (en) * | 2009-04-21 | 2010-09-30 | Univerzita Tomase Bati Ve Zline | Device for the wear test of polymer materials |
| WO2010124649A1 (en) * | 2009-05-01 | 2010-11-04 | Cong Yang | Regenerative utilization system of vibration kinetic energy of motor vehicle, shock-absorbing system and vehicle |
| CN102004060A (en) * | 2010-09-10 | 2011-04-06 | 杭州中策橡胶有限公司 | Test method and device for measuring sharp object puncture resistance of rubber material |
| CN102053042A (en) * | 2009-11-10 | 2011-05-11 | 韩国轮胎株式会社 | Determination device for tyre abrasion |
| CN103348232A (en) * | 2011-02-11 | 2013-10-09 | 普利司通美国轮胎运营有限责任公司 | Tire chip and tear test apparatus and method |
| CN103575551A (en) * | 2012-08-02 | 2014-02-12 | 住友橡胶工业株式会社 | Tire bench testing apparatus and tire performance testing method using the same |
| CN204666435U (en) * | 2015-06-08 | 2015-09-23 | 威海丰泰新材料科技股份有限公司 | Rubber rollers simulation test machine |
| CN106802134A (en) * | 2017-03-15 | 2017-06-06 | 深圳市安车检测股份有限公司 | A kind of line-structured light machine vision tire wear measurement apparatus |
| CN106918299A (en) * | 2017-03-15 | 2017-07-04 | 深圳市安车检测股份有限公司 | A kind of line-structured light machine vision tire wear measuring method |
| CN107860673A (en) * | 2017-11-18 | 2018-03-30 | 哈尔滨工业大学（威海） | A kind of tire wear comprehensive test machine |
| CN108007701A (en) * | 2017-12-12 | 2018-05-08 | 陈高强 | For testing the device of the wearability of tire and the impact resistance of wheel hub |
-
2018
- 2018-10-19 CN CN201811241929.8A patent/CN109269928A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4144740A (en) * | 1978-05-01 | 1979-03-20 | The B. F. Goodrich Company | Testing apparatus and method for measuring cutting, chipping and abrasion resistance |
| CN2034543U (en) * | 1988-03-08 | 1989-03-22 | 段传忠 | Resilient air-cushion device |
| DE3901118A1 (en) * | 1989-01-16 | 1990-07-19 | Bayern Tech Ueberwach Verein | Device for determining the resistance to cutting and damage of the running surface of vehicle tyres |
| CN2423140Y (en) * | 2000-05-30 | 2001-03-14 | 丁建新 | Motor vehicle vibration damper |
| JP2006047075A (en) * | 2004-08-04 | 2006-02-16 | Yokohama Rubber Co Ltd:The | Abrasion test method and device for tire |
| CN101013074A (en) * | 2007-02-05 | 2007-08-08 | 华南理工大学 | Rubber abrasion test equipment |
| DE202010005855U1 (en) * | 2009-04-21 | 2010-09-30 | Univerzita Tomase Bati Ve Zline | Device for the wear test of polymer materials |
| WO2010124649A1 (en) * | 2009-05-01 | 2010-11-04 | Cong Yang | Regenerative utilization system of vibration kinetic energy of motor vehicle, shock-absorbing system and vehicle |
| CN102053042A (en) * | 2009-11-10 | 2011-05-11 | 韩国轮胎株式会社 | Determination device for tyre abrasion |
| CN102004060A (en) * | 2010-09-10 | 2011-04-06 | 杭州中策橡胶有限公司 | Test method and device for measuring sharp object puncture resistance of rubber material |
| CN103348232A (en) * | 2011-02-11 | 2013-10-09 | 普利司通美国轮胎运营有限责任公司 | Tire chip and tear test apparatus and method |
| CN103575551A (en) * | 2012-08-02 | 2014-02-12 | 住友橡胶工业株式会社 | Tire bench testing apparatus and tire performance testing method using the same |
| CN204666435U (en) * | 2015-06-08 | 2015-09-23 | 威海丰泰新材料科技股份有限公司 | Rubber rollers simulation test machine |
| CN106802134A (en) * | 2017-03-15 | 2017-06-06 | 深圳市安车检测股份有限公司 | A kind of line-structured light machine vision tire wear measurement apparatus |
| CN106918299A (en) * | 2017-03-15 | 2017-07-04 | 深圳市安车检测股份有限公司 | A kind of line-structured light machine vision tire wear measuring method |
| CN107860673A (en) * | 2017-11-18 | 2018-03-30 | 哈尔滨工业大学（威海） | A kind of tire wear comprehensive test machine |
| CN108007701A (en) * | 2017-12-12 | 2018-05-08 | 陈高强 | For testing the device of the wearability of tire and the impact resistance of wheel hub |
Non-Patent Citations (2)
| Title |
|---|
| 霍柱辉;: "评价大型工程机械轮胎胎面胶抗切割性能的裤形撕裂强度试验方法探讨", 轮胎工业, no. 02, 10 February 2016 (2016-02-10), pages 119 - 123 * |
| 霍柱辉;: "评价大型工程机械轮胎胎面胶抗切割性能的裤形撕裂强度试验方法探讨", 轮胎工业, no. 02, pages 119 - 123 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702552A (en) * | 2019-11-12 | 2020-01-17 | 正新橡胶（中国）有限公司 | Abrasion device for tire rubber |
| CN111047560A (en) * | 2019-11-21 | 2020-04-21 | 深圳市优必选科技股份有限公司 | Test method and test system for universal wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104050811B (en) | Laser motor vehicle model classification system and method | |
| EP2141475B1 (en) | Apparatus for determining the condition of a tire tread of a vehicle wheel | |
| JP4488476B2 (en) | Method and apparatus for evaluating bearing play or joint play of components connected together | |
| CN104502015B (en) | The detection method of drum reaction type lift type automobile axle load brake composite inspection table | |
| CN103693073B (en) | A kind of noncontact wheel diameter dynamic measurement device and measuring method thereof | |
| KR101164423B1 (en) | active contact pressure measuring device of tire | |
| CN1133433A (en) | Contactless type railway vehicle wheel test device and method | |
| US20060123896A1 (en) | Test stand for motor vehicles | |
| CN105445180A (en) | Pavement antiskid performance testing device and testing method thereof | |
| CN109269928A (en) | A kind of tire wear testing machine and its detection method | |
| CN101576477B (en) | Pavement friction coefficient testing car | |
| KR20130134394A (en) | Inspection device of tire tread using machine vision and inspection method thereof | |
| CN103547897A (en) | Balancing machine for balancing vehicle wheels | |
| CN110904798A (en) | Device for detecting pavement cracks | |
| CN209117508U (en) | A kind of tire wear testing machine | |
| CN212300868U (en) | Automobile tire detection equipment | |
| CN2820643Y (en) | Intelligent online detecting system for train tread bruise | |
| CN111879533A (en) | Automobile tire detection device, method, device and storage medium | |
| CN217084066U (en) | Wheel comprehensive test platform capable of balancing and rim detection | |
| CN102057267B (en) | Method of estimating the transverse grip of a pair of tyres by comparative analysis | |
| EP0880019B1 (en) | A method for predicting tire performance on rain groove roadways | |
| CN201434818Y (en) | Road surface friction coefficient testing carriage | |
| GB2555604A (en) | Vehicle inspection methods and apparatus | |
| KR200472571Y1 (en) | Potable Bulge Detecting Apparatus for Sidewall of Tire | |
| EP3762701B1 (en) | Apparatus for the analysis of the behavior of a pneumatic tyre at the interface with the ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |