CN1054665A - The method and apparatus of wearing and tearing usefulness - Google Patents
The method and apparatus of wearing and tearing usefulness Download PDFInfo
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- CN1054665A CN1054665A CN91101026A CN91101026A CN1054665A CN 1054665 A CN1054665 A CN 1054665A CN 91101026 A CN91101026 A CN 91101026A CN 91101026 A CN91101026 A CN 91101026A CN 1054665 A CN1054665 A CN 1054665A
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Abstract
A kind of wear equipment of the tire tread compound that weares and teares, it have a plurality of experiment tablees and with the transmission component of these experiment table couplings.Each experiment table has a husky wheel and an exemplar wheel, and the two is all driven rotatably by transmission component.This exemplar wheel engages the wearing and tearing tire tread compound with husky wheel.Each experiment table also has the dust transfer wheel and a chalk spare that can be connected with the dust transfer wheel that can be connected with the exemplar wheel.Transmission component has a gear assembly, regulate the slip value to change the exemplar wheel with respect to the speed of sand wheel speed, and the degree of wear of regulating the exemplar wheel thus, this wear equipment can be used for different abrasion hardness grade wearing and tearing tyre stocks, with the irregular wearing quality of predictive compound.
Description
The present invention relates to the to wear and tear equipment and the method for usefulness relate in particular to equipment and method that the rubber compound of wearing and tearing tire tread compound or other type is used, so that measure rate of wear, wearing quality and/or the resistance to abrasion of this compound under different abrasion hardness conditions.
The equipment of the rubber compound of more existing be used to wear and tear tire tread compound or other pattern mainly comprises a test stand that has a removable wear surface.Test specimen of compound with this movably wear surface be connected and wear and tear.Then, the quantity of material under the abrasion on this test specimen is measured, with rate of wear, wearing quality and/or the resistance to abrasion of prediction this tire tread compound under actual tire wearing and tearing or other abrasive conditions.
The problem that these known wear equipments exist is that they only have an experiment table, and therefore, testing a kind of compound usually needs long time.In addition, in single experiment table, can not consider the variability of testing usually.Therefore, the wear data that is provided by such some equipment usually can not provide an accurate basis for the prediction of the actual wear characteristic of tire tread compound.
It is that the surface condition at interface between husky wheel and the exemplar compound can not suitably be controlled that there is another problem in these known wear equipments.For example, with regard to tire tread compound, on the surface in contact of the husky wheel of being everlasting, form the oil reservoir of the elastomeric material of one deck decomposition.This oil reservoir reduces the degree of wear of husky wheel.This equipment of result may provide the wear data of the rate of wear of coarse this compound of prediction.
Another problem that the abrasion method that these are known and equipment exist is that the wear data of prediction treadwear is to provide under one or an average abrasion hardness grade.But for some tire tread compounds, under different abrasion hardnesses, corresponding treadwear characteristic can change significantly.For example, when low abrasion hardness grade, some tire tread compounds show high treadwear performance, and when high abrasion hardness grade, then show low treadwear performance.Therefore, the known wear equipment that only weares and teares under or an average abrasion hardness grade usually provides incorrect wear data.
For example, if a kind of like this equipment is used to test a kind of tire tread compound under a low abrasion hardness grade, it may show fabulous tread properties, but in fact, the tread properties that this identical sizing material provides under high abrasion hardness grade is very poor.If the wearing and tearing that a kind of like this tire tread compound is used to make a tire and stands high rigidity, operation doughnut for example, then this tire may present a high rate of wear and/or a kind of irregular wear characteristic curve occur.
A problem that presents the tire tread compound existence of the rate of wear characteristic that differs widely in different abrasion hardness grades is irregular wear characteristic curve often to occur by the tire that these compounds are made.Determine, irregular wearing and tearing often are because the stress distribution inhomogeneous generation on the tyre surface of tire.If this tire tread compound presents low wearing quality when high abrasion hardness grade, so this tire stand that the part of higher hardness or stress levels will be than the wearing and tearing of the other parts of this tire fast.As a result, the irregular wear family curve of this tyre life usually appears significantly reducing in these tyre surfaces.
Therefore, crucial is the wearing character that can both test some tire tread compounds in high and low abrasion hardness grade.Because known certain methods and equipment can not be used to finish this function, so normally by automobile is tested its actual tire test under high and low hardness abrasive conditions, this is one is time-consuming expensive again method to these compounds.
Therefore, the objective of the invention is to overcome the problems referred to above and the shortcoming that exists in known abrasion method and the equipment.
The present invention relates to a kind of equipment of the compound that contains carbon black of being used to wear and tear.This equipment comprises a framework, a motor and a plurality of experiment table of by frame supported.Each experiment table comprises that one is connected with motor and is taken turns by the sand that its rotation drives.Each experiment table comprises that also one also is connected with this motor and is taken turns by the exemplar that its rotation drives.Each exemplar wheel comprises a compound to be worn and torn that contains carbon black, and is connected with the sand wheel, and this sand wheel weares and teares to the compound that contains carbon black against it.
Each experiment table also comprises the dust transfer wheel and a chalk spare that can be connected with this dust transfer wheel that can be connected with the exemplar wheel.This chalk spare is delivered to the dust transfer wheel with whiting, and the dust transfer wheel is delivered to whiting the exemplar wheel again, so that the interface dusting between this exemplar wheel and husky wheel.One first gear member and motor, exemplar wheel and the coupling of husky wheel.This first gear member is selected takes turns the speed of speed to set the exemplar wheel with respect to sand, and sets the degree that this exemplar wheel is worn and torn by husky wheel thus.
In equipment of the present invention, each experiment table also comprises a pouring weight that is connected with the exemplar wheel, and this first pouring weight is selected, leans against the power that sand is taken turns to set this exemplar wheel, and sets this exemplar wheel thus by the husky degree of wearing and tearing of taking turns.Each experiment table also comprises an elastic component with the coupling of dust transfer wheel.This elastic component is located between dust transfer wheel and the exemplar wheel.Chalk spare passes to elastic component with whiting, and elastic component passes to whiting the exemplar wheel again.
In equipment of the present invention, each experiment table also comprises second pouring weight with the coupling of dust transfer wheel.This second pouring weight is selected, setting the power of dust transfer wheel on the exemplar wheel, and set the power of elastic component on the exemplar wheel thus, so that control is applied to the whiting on the exemplar wheel, this chalk spare is by comprising magnesium hydroxide, and the potpourri of the plaster of paris and water is made.
In equipment of the present invention, one first and first gear member, motor and the coupling of exemplar wheel.This first by motor rotation driving, with rotation driving exemplar wheel.One second and first gear member, motor and the coupling of husky wheel are taken turns so that rotation drives this sand.First gear member is selected, setting first speed with respect to second speed, and sets the speed of exemplar wheel with respect to sand wheel speed thus.
Equipment of the present invention also comprises second gear member with first and the first gear member coupling.First drives second gear member, and second gear member drives first gear member again.One the 3rd gear member and second and the first gear member coupling.First gear member drives the 3rd gear member, and the 3rd gear member drives second again.First and second relative velocity, and the relative velocity of exemplar wheel and husky wheel is set by the size of selecting first gear member respectively.First and second, and the exemplar wheel is driven in rotation with opposite direction respectively with husky wheel.
The invention still further relates to a kind of method of the tire tread compound that weares and teares.Method of the present invention comprises the step that at least two exemplar wheels are weighed, and wherein each exemplar wheel comprises a tire tread compound.Each exemplar wheel weares and teares by engaging to be rotated with a corresponding husky wheel, and wherein the relative velocity of exemplar wheel and husky wheel determines one first slip value.Then, measure the weight of each exemplar wheel, with of the loss of side amount at this this tire tread compound of first slip value.These sample wheels rotate with the second slip value then, and each is worn with a corresponding husky exemplar wheel that engages of taking turns.Then each exemplar wheel is weighed, so that measure the loss of this tire tread compound in the second slip value.These exemplar wheels rotate with one the 3rd slip value then, and each is worn with a corresponding husky exemplar wheel that engages of taking turns.Each exemplar wheel is weighed then, to measure the loss of this tire tread compound in the 3rd slip value.
The method according to this invention, each slip value is removed in the speed of exemplar wheel based on the speed of exemplar wheel and the difference between the husky speed of taking turns.The first slip value is in 5% to 9% scope; The second slip value is in 9% to 17% scope; And the 3rd slip value is in 17% to 30% scope.Best situation is that the first slip value is about 7%, the second slip value and is about 13%, the three slip value and is about 21%.
The invention still further relates to a kind of wearing and tearing and contain the method for carbon black compound.This method comprises each step of weighing to a plurality of exemplars.Wherein, each exemplar outside surface is to be made by the compound that contains carbon black.Each of these exemplars all engages with a corresponding abrasion part rotationally weares and teares.Exemplar is determined one first slip value with respect to the speed of abrasion part speed.Another abrasion part of these exemplars and at least one weares and teares with engaging of first slip value rotation.Then, measure in the first slip value and contain the carbon black compound from each exemplar loss.
Then, these exemplars wear and tear with engaging of one second slip value rotation with corresponding abrasion part.Another abrasion part of each exemplar and at least one weares and teares with engaging of second slip value rotation.Measure then in the second slip value and contain the carbon black compound from each exemplar loss.
In the method for the invention, each exemplar number of turns of rotating with each wear-out part is in 10,000 to 20,000 scopes of changeing.This exemplar also rotates with each abrasion part in about per minute 800 to 900 commentaries on classics (RPM) scopes.The environment temperature Be Controlled of exemplar and abrasion part, with control by the wear and tear degree of these exemplars of abrasion part.Environment temperature preferably maintains in about 40 ℃ to 55 ℃ scope.Calculate the volumetric wear of the unit stroke of each exemplar when each slip then.This volumetric wear is based on the loss in weight of measuring each exemplar and the proportion that contains the carbon black compound.
An advantage of method and apparatus of the present invention is to reduce to minimum in any intrinsic variation aspect the wearing quality of each abrasion part by wear and tear against several abrasion parts each exemplar wheel or exemplar.Another advantage of the present invention is that exemplar wheel or exemplar can be worn with the different abrasion hardness grades that cause thus with different slip values.So the irregular wearing quality degree of tire tread compound can be predicted based on the weight of measuring exemplar wheel after each slip value wearing and tearing.And known abrasion method and equipment usually only wear and tear one or an average abrasion hardness grade, so generally can not be used for predicting accurately irregular wearing quality.
Another advantage of the present invention is that chalk spare and dust transfer wheel are applied to thin whiting film on the interface of corresponding exemplar wheel and husky wheel.Therefore, whiting has prevented that the oil reservoir of the elastomeric material that decomposes from appearing on the interface between the sand wheel of each exemplar wheel and its correspondence, and oil reservoir can reduce the degree of wear of the exemplar wheel of a given slip value, thereby makes this equipment coarse wear data is provided.
Some other advantage of the present invention will be more readily apparent from by the following detailed description that conforms to accompanying drawing.
Fig. 1 is a local front plan view of implementing a wear equipment of the present invention.
Fig. 2 is the lateral plan of equipment shown in Figure 1 along the amplification of an experiment table of A-A line intercepting.
Fig. 3 is the lateral plan of equipment partial cut-out shown in Figure 1.
Fig. 4 is the front view of amplification of the transmission component of equipment shown in Figure 1.
Fig. 5 is the end face view of the partial cut-out of transmission component shown in Figure 4.
Fig. 6 is the lateral plan of transmission component shown in Figure 4.
Fig. 7 is the partial schematic diagram of equipment shown in Figure 1, and the order of several exemplars wheels that wear and tear according to the present invention is described.
In Fig. 1, wear equipment of the present invention is implemented in label 10 expressions.This equipment 10 comprises among a housing 12 and 12 one the experiment table 14(figure that then is installed in the housing 12 has only represented six).So this equipment 10 has a right experiment table 14 of row and the left experiment table 14 of a row, six experiment tablees are drawn together in every package.This equipment 10 also comprises a transmission component 16 that is installed in the place, about centre position of housing 12, and to drive these experiment tablees 14, this part content below will further specify.
Per two experiment tablees 14 are installed in the experimental framework 18 that roughly takes the shape of the letter U, and as shown in Figure 1, have represented a typical experiment table 14 in more detail in Fig. 2.This experiment table 14 comprises that one is connected sand wheel 20 on the husky wheel drive shaft 22 with key.The axle journal of this sand wheel drive shaft 22 is positioned at the front end of experimental framework 18.The finishing of husky wheel 20 usefulness nylon wheels is removed any sharp-pointed teat on its periphery or the wear surface and passivation.By the husky wheel 20 of passivation, avoided the cutting abrasion, this cutting abrasion is finished wear test to equipment 10 adverse influence.
As shown in Figure 2, experiment table 14 also comprises an exemplar wheel 24, and it is connected on the first exemplar wheel drive shaft 26 that is directly arranged in husky wheel 20 tops with key.Exemplar wheel 24 comprises that a steel core 25(is as shown) and one deck suppress the exemplar material that is formed on the steel core.For example, this exemplar material is one to contain the tire tread compound of carbon black.The one-tenth-value thickness 1/10 of general this exemplar material layer is about 1/2nd to one inches.The exemplar wheel is by cutting into strips the tire tread compound and it being wrapped in formation on the steel core 25.Then, this band is suppressed under the condition of heating and pressurization in a suitable mould and is formed on the steel core 25, and this method is known in the art.
As shown in Figure 2, the axle journal of exemplar wheel drive shaft 26 is located at the free end of exemplar wheel framework 27, this exemplar wheel framework again pivot at the end of framework 18 around the second exemplar driving shaft 28.The axle journal of the second exemplar wheel drive shaft 28 is located at the top rear of framework 18.Therefore, exemplar wheel framework 27 is around the second exemplar wheel drive shaft, 28 pivots, takes turns 20 engage so that exemplar wheel 24 moved into and shift out with husky.Exemplar wheel 24 is controlled by a counterbalance weight 29 against the normal force of sand wheel 20.These counterbalance weight 29 usefulness ropes 30 are suspended from the free end of exemplar wheel framework 27, as shown in Figure 2.Therefore, can come local adjustment with husky wheel 20 by the weight of adjusting counterbalance weight 29 against the degree of wear of exemplar wheel 24.
Experiment table 14 also comprises one first sprocket wheel 31, and it is connected on the first exemplar driving shaft 26 near outside the exemplar wheel 24 with key.Second sprocket wheel, 32 usefulness keys are connected on the second exemplar wheel drive shaft 28 and with first sprocket wheel 31 and are provided with in line.Article one, exemplar wheel drive chain band 34 is installed on first sprocket wheel 31 and second sprocket wheel 32, driving these sprocket wheels, and drives exemplar wheel 24 thus.As shown in Figure 1, the second exemplar wheel drive shaft 28 and transmission component 16 coupling mutually, and drive exemplar wheel 24 thus, this part also will further specify below the content.
Experiment table 14 also comprises a dust wheel framework 36, and it takes turns an end head lamp brush guard pivot of framework 27 at exemplar with a bearing spider 38.A dust transfer wheel 40 is connected at the free end pivot of dust wheel framework 36 and with exemplar wheel 24 by bearing spider 42, as shown in Figure 2.Therefore, this dust wheel framework 36 is around bearing seat 38 pivots, so that dust transfer wheel 40 is moved into and shifts out and being connected of exemplar wheel 24.
Experiment table 14 also comprises a chalk bar arm 44, and it pivotally is installed in an end of exemplar framework 27 near dust wheel framework 36 places.Chalk bar 46 is installed on the free end of chalk bar arm 44 by a carriage 47.As shown in Figure 2, the free end of chalk bar 46 keeps being connected with dust transfer wheel 40 under the weight effect of chalk bar 46 and chalk bar arm 44.Carriage 47 is clamped chalk bar 46 and fixing with screw 48, and this chalk bar is remained on the appropriate position.This chalk bar 46 is preferably by magnesium hydroxide, and the plaster of paris and softening water are made and be provided, so that give dust transfer wheel 40 with the film transfer of whiting.Also can make several chalk bars, for example by mixing about 170 gram plaster of paris, 80 gram magnesium hydroxides and 150 gram softening waters are made.Then this potpourri is injected a mould and make it sclerosis in about a hour.Then this chalk is unmolded and about 100 ℃ the heating one day.After the heating, these chalks are cut into each chalk bar 46.
Dust transfer wheel 40 comprises a rubber core 50 and a foam skin 52, and this foam skin is polyurethane foam preferably.Rubber ring 54 with rubber core 50 about same widths is installed around foam outer 52.Therefore, this rubber ring 54 keeps taking turns 24 with exemplar and is connected with the bottom of chalk bar 46.Rubber ring receives whiting from chalk bar 46, these whiting is delivered to the outside surface of exemplar wheel 24 again.It is in order to control the surface state at interface between exemplar wheel 24 and the husky wheel 20 that whiting is provided.
If the dusting deficiency then may be set up the oil reservoir of the exemplar material that one deck decomposes on sand is taken turns 20 wear surface, and reduce the rate of wear of exemplar wheel 24 thus.But if there is too many whiting, then these dust may stop the effective contact between exemplar wheel 24 and the husky wheel 20.Can reduce the rate of depreciation of exemplar wheel 24 equally.So the chalk bar preferably is connected with rubber ring 54 a little, so that between exemplar wheel 24 and husky wheel 20, keep a thin whiting film.Lean against the power that applies on the exemplar wheel 24 by dust transfer wheel 40 and control, as shown in Figure 2 by counterbalance weight 56.Counterbalance weight 56 is connected with dust transfer wheel 40 by a rope 58.Rope 58 is placed on by housing 12 and is supporting first pulley 60 on framework 18 and install above second pulley 62.
Referring to Fig. 4 to Fig. 6, it is very clear that the transmission component 16 of this equipment is represented.Transmission component 16 comprises a transmission component framework 68 that roughly takes the shape of the letter U, as shown in Figure 4.The axle journal of first transmission shaft 70 is supported on the back top of transmission component framework 68 by bearing seat 71.The axle journal of second transmission shaft 72 is supported on the front of transmission framework 68 by bearing seat 73, be positioned at first transmission shaft 70 below.Belt pulley 74 usefulness keys are connected on first transmission shaft 70 between transmission framework 68 and adjacent experiment table 14.Article one, driving belt 76 is installed on the belt pulley 74, and is driven by a motor 77, thereby drives first transmission shaft 70.As shown in Figure 1, first transmission shaft 70 and 28 couplings of the second exemplar wheel drive shaft are to drive this exemplar wheel 24.
Transmission component 16 also comprises the 3rd gear shaft 90 that separates with second gear shaft 86 that is close to, and its axle journal is installed in the free end of gear framework 80, as Fig. 4 and shown in Figure 6.One the 3rd gear 92 usefulness keys are connected the free end of the 3rd gear shaft 90, and location and selected size, so that mesh with second gear 88, as shown in Figure 6.One the 4th gear 94 usefulness keys are connected with the free end of the 3rd gear shaft 90, and separate with the 4th gear 92, as shown in Figure 4.A gear nut 96 is spun on the free end of gear shaft 90, and the 4th gear 94 is locked on this axle.As shown in Figure 4, the lateral surface of gear nut 96 by annular knurl so that this gear nut can manually be spun on this axle.Therefore, the 4th gear 94 is easy to take off and replace with the gear of a different size from gear shaft 90, and to change the gear ratio between first transmission shaft 70 and second transmission shaft 72, this content also will further specify below.
Transmission component 16 comprises that also one is connected on second transmission shaft 72 with key and engagement is arranged in the 5th gear 98 below the 4th gear 94, and as Fig. 4 and shown in Figure 6, the 5th gear 98 is dimensioned and locatees, so as with 94 engagements of the 4th gear.Therefore, the 5th gear 98 is driven by the 4th gear 94, thereby drives second transmission shaft 72.Second transmission shaft 72 takes turns 20 with the sand of husky wheel drive shaft 22 coupled driving experiment tablees 14 again, as shown in Figure 1.
One baffle plate 100 is installed in the front end of transmission component framework 68, and extends upward near the free end of gear framework 80.This baffle plate 100 has been determined many circular holes 102 that pass this baffle plate, as shown in Figure 4.Gear framework 80 has also been determined a hole (as shown in the figure) on its free end 104, this hole has the diameter of the diameter same size of a selected pact and each circular hole 102.As shown in Figure 6, this transmission component 16 also comprises a bayonet lock 106, and its size is set for and is suitable for passing any one circular hole 102 and enters in the hole 104 of gear framework 80, and this bayonet lock 106 is connected with baffle plate 100 by a rope 108.Therefore by bayonet lock 106 being passed in the patchhole 104 in a plurality of circular holes gear framework 80 is pinned with respect to baffle plate 100.
Gear ratio between first transmission shaft 70 and second transmission shaft 72, and the speed of exemplar wheel 24 is adjustable with husky velocity ratio of taking turns by the 4th gear 94 is used the gear of different sizes.Take off gear nut 96 and around transmission shaft 70 pivot moving gear framework 80 replaceable the 4th gears 94 upwards.The 4th gear 94 is deviate from the engagement with the 5th gear 98 thus.Then the 4th gear 94 is pulled out axle 90, and replace with a new gear 94, the gear of this replacement is locked in the end of axle 90 with gear nut 96, when new the 4th gear 94 descends when entering engagement with the 5th gear 98, bayonet lock 106 inserted in the suitable circular hole 102 gear framework 80 pinned went up in place.The free end that circular hole 102 reboots bayonet lock 106 enters in the hole 104 of gear framework.
As shown in Figure 5, transmission component 16 comprises that also one is connected disk 110 on first transmission shaft 70 with key, is adjacent to the left pillar of transmission component framework 68.First light guide sensor 112 is installed in contiguous first disk 110 places on the transmission component framework 68.When derivative sensor 112 detects the rotating speed of first disks 110 and first transmission shaft 70 and calculates revolution, i.e. the rotating speed and the revolution of exemplar wheel 24.The output signal that first light guide sensor 112 produces reaches first digital indicator 114, and as shown in Figure 1, this display shows the speed and the revolution of exemplar wheel 24.
Transmission component 16 also comprises with key and is connected second disk 116 on second transmission shaft 72, the right pillar of contiguous transmission component framework 68.Second light guide sensor 118 is installed in and is adjacent to second disk, 116 places on the transmission component framework 68.This second light guide sensor 118 detects the rotating speed of second disk 116 and second transmission shaft 72 and calculates revolution, i.e. the rotating speed and the revolution of husky wheel 20.The output signal that second light guide sensor 118 produces reaches a digital indicator 120, and as shown in Figure 1, this display shows the speed and the revolution of husky wheel 20.
In the operation of this equipment 10, transmission component 16 drives husky wheel 20 of experiment table and exemplar wheel 24.Exemplar is taken turns and is leaned against the upward wearing and tearing of corresponding husky wheel thus, so that the compound of taking turns for exemplar provides wear data.When motor 77 startings, the belt pulley 74 of transmission component 16 drives first transmission shaft 70.First transmission shaft 70 drives the second exemplar wheel drive shaft 28, and this driving shaft 28 drives second sprocket wheel 32 of each experiment table 14 again.Therefore, each second sprocket wheel 32 rotates corresponding exemplar wheel driving-chain band 34, and this chain band rotates first sprocket wheel 31 again, and drives corresponding exemplar wheel 24.
Motor 77 also drives first gear 78 by driving husky wheel 20, the first transmission shafts 70 of first transmission shaft, 70 rotations.First gear 78 drives second gear 88, and this second gear 88 drives the 3rd gear 92 and the 4th gear 94 again.The 4th gear 94 transmissions the 5th gear 98.The 5th gear 98 drives second transmission shaft 72 again.Transmission shaft 72 and husky wheel drive shaft 22 couplings, husky wheel drive shaft 22 drive the sand wheel 20 of experiment table 14 again rotatably, and shown in the arrow among Fig. 2, exemplar wheel 24 and husky wheel 20 drive with opposite direction with being rotated.Because all exemplars wheel 24 is all driven by first transmission shaft 70, so all exemplar wheels are driven with identical rotating speed.Similarly, because husky wheel 20 all is to be driven by second transmission shaft 72, so all sand wheels all are driven with identical rotating speed.
Wire rate (or tangential velocity) and the sand ratio of taking turns 20 linear velocity (or tangential velocity) of the rate of wear of each exemplar wheel 24 on each experiment table 14 by control exemplar wheel 24 is set, this ratio is considered to slip value (S), and slip value (S) is defined as follows:
(S)= ((V
s-V
G))/(V
S) ×100(%) (1)
Wherein:
V
SBe the linear velocity of the wear surface of exemplar wheel 24,
V
GIt is the linear velocity of the wear surface of husky wheel 20.
This slip value (S) is by selecting the gear of suitable dimension to control to the 4th gear 94.Preferably this equipment 10 can use the 4th gear 94 of a plurality of different sizes so that this slip value (S), promptly the rate of wear can be in-30% to 30% slip scope approximately the level setting to increase.
In a typical wear test, exemplar wheel 24 weares and teares with several slip values (S), so that the wear data under the different abrasion hardness grades to be provided according to the present invention.Preferably at least two to five exemplar wheels 24 of each experimental compound are worn.But, this equipment 10 exemplar wheel 24 that can on each experiment table 14, wear and tear, therefore, 12 exemplars wheels once are suitable for wearing and tearing.So several different compounds can wear and tear on equipment 10 simultaneously.
The quantity of wearing and tearing for a given compound exemplar wheel 24 depends on the difference that requires between a plurality of compounds.For example, if two exemplar wheels are tested, then this deviation from mean generally is about 3-5%; If five exemplar wheels are tested, then this deviation from mean generally is about 2-3%.
In order to measure the VOLUME LOSS that wearing and tearing cause, the size of each exemplar wheel 24 and weight are measured after rotating when wear test begins and with each specific slip value, preferably use the electronic balance that is accurate to about 0.1mg to claim the weight of exemplar wheel 24.In the process of experiment, the loss in weight of measurement is done the correction of the loss in weight aspect of evaporation generation.The correction of the loss in weight that this evaporation produces is measured from the weight change of the master body wheel 24 that the compound of being tested by quilt is made, and this master body wheel 24 remains on housing 12 the insides, but does not does not wear and tear, about also further specifying below this point.The most handy laser micrometer of diameter of exemplar wheel, the model of making as the Zygo company by Middlefieldconnecticut are that the Zygo laser micrometer of 1201B is measured.Circumference along each exemplar wheel is got three measured values with interval about equally, and gets the mean value of these three measured values.
Per unit average external volume is at interval lost (CC/cm), or the rate of wear (W) of each given compound exemplar wheel is calculated after with each slip value wearing and tearing.VOLUME LOSS (CC) decides according to loss in weight and this compound proportion of each exemplar wheel (weight change based on corresponding master body is corrected) of measuring.Each active wheel the stroke (cm) of each slip value by active wheel before measuring wearing and tearing the diameter measurement value and those slip value wearing and tearing afterwards the mean value of the diameter measurement value of active wheel calculate.Then, this mean diameter measured value is used to determine the average perimeter of active wheel when that slip value.This average perimeter multiply by revolution with regard to the stroke of decision at the active wheel of this slip value.
The volumetric wear data of each compound that following equation is suitable for testing, so that analyze this data in different slip values:
W＝KS
n（2）
Wherein:
W is the rate of wear for the exemplar wheel 24 of each compound;
S is the slip value of definition in equation (1);
K and n are the constants that determines from the experience that equation (2) calculates.
Then decision is to the compound of each experiment experiment abrasion index (LI) in each slip value:
LI＝ (Wreference)/(Wsample) （3）
Wherein:
Wreference is the rate of wear of the exemplar wheel 24 of reference compound.
Wsample is the rate of wear of the exemplar wheel 24 of each exemplar compound.
An exemplar wheel 24 of being made by reference compound is at least always arranged, and this reference compound is with other exemplar wheel 24 wearing and tearing.For with other experiment the exemplar compound relatively, this reference compound is worn, the experiment abrasion index (LI) that defines in equation (3) with decision.
If consider the influence of hardness aspect rate of wear of experimental compound, the track area of contact also will be measured between the sand wheel 20 of wearing and tearing exemplar wheel 24 and their correspondences so.Wheelmark is partly measured by the several wear surfaces that mark exemplar wheel 24 with ink.This exemplar wheel is installed on the experiment table 14 and with a piece of paper and is placed on the corresponding sand wheel wear surface, then, makes the surface that ink is arranged of drawing of exemplar wheel fall with these scraps of paper and be connected under the acting force of the counterbalance weight 29 of correspondence.Then, measure the surface area of the track that marks with ink on this paper, the most handy by Mountain Wiew, the model that the Kontron company of California makes is that the Kontron image analysis device of KAT386 is measured.
When a wear test begins, measure in the initial weight and size of exemplar wheel 24, preferably measure the track area.Then, can test abrasion index (LI) with the ratio adjustment of the exemplar wheel track area of this exemplar wheel or reference compound based on the mean trajectory area of the exemplar of experimental compound wheel.
With reference to figure 7, it schematically illustrates according to wear and tear on experiment table 14 order of exemplar wheel 24 of method of the present invention.Array exemplar wheel 24 forms by above-mentioned method compacting, and each group is formed by different experimental compounds.Some exemplars wheel in each group is as the active wheel that leans against wearing and tearing on the husky wheel 20, and other exemplar wheel 24 is as master body, and these master bodies only are worn when regulating step, and is remained on fully in the housing 12 during the wearing and tearing active wheel in the process of experiment.The steel core 25(active wheel and the master body of each exemplar wheel 24) use a figure notation, so that each exemplar wheel can be identified in whole experiment.
The quantity of the master body of every group of active wheel is preferably by following method decision: tested if a kind of compound is a collection of, four active wheels and a master body are arranged; If two batches of a kind of given compounds are tested (same laboratory sample in batches), each batch has three active wheels and a master body; If three batches of quilts of a kind of given compound are tested, two active wheels and a master body are arranged to every batch.Preferably the exemplar of the even quantity of every kind of given compound wheel 24 is tested, and half of exemplar wheel 24 can be worn and torn on the experiment table 14 of this equipment left bank, and second half can wearing and tearing on right side row's experiment table 14.
These exemplars wheel 24 is placed on the guide rod with random order, puts six wheels on the every guide rod, as shown in Figure 7.The master body wheel is placed on (not shown) on the independent guide rod.Fig. 7 only represents six experiment tablees 14, and these six experiment tablees can be six of left bank, or right six of arranging experiment table.But another row experiment table 14(does not represent) active wheel wear and tear in identical mode shown in Figure 7.
Then, all guide rods are placed in about 100 ℃ the stove about 24 hours, make these exemplars wheel 24(active wheel and master bodies) reach desired duty.Housing 12 is preheating to about 49 ℃, and then is placed in the housing 12 of heating about 30 minutes when guide rod takes out from stove.Then each of active wheel and master body is installed on the corresponding experiment table 14, and is adjusted, change so that change 10,000 approximately with 860 RPM, the temperature in the housing 12 are located at 49 ℃ approximately.The 4th gear 94 is dimensioned, so that the slip value is about 7%.
After the adjustment, these wheels allow cool to room temperature, and still, all wheels (active wheel and master body) remain on identical temperature in whole experiment.Then, clean the wear surface of husky wheel 20 with the line brush.Housing 12 is evacuated, to remove any discrete particles of assembling when the set-up procedure.And the rubber ring on dust transfer wheel 40 is replaced.
Then press the diameter of above-mentioned method surveying work wheel.Each exemplar wheel 24 comprises that the weight of active wheel and master body is measured and records near 0 1mg.Then, housing 12 is preheated at least two hours at about 49 ℃, and then all exemplar wheels 24 comprise that active wheel and master body heated 30 minutes at least in housing 12.By order shown in Figure 7 active wheel is installed on the corresponding exemplar wheel drive shaft 26 then, the 4th gear 94 is dimensioned, so that its slip value is about 7%, and the inside of housing 12 is maintained at about 49 ℃.Proceed with one's work the wheel 860 RPM wear and tear about 15,000 the circle.When active wheel stops, they take off and put back on guide rod by order shown in Figure 7 from the experiment table 14 of correspondence, then, the active wheel on the guide rod is installed on the corresponding experiment table 14 by order shown in Figure 7 and once more with 860RPM about 15,000 circles that wear and tear once more.So each active wheel 24 weares and teares with each wearing and tearing grade on a new experiment table 14.
When active wheel when each experiment table 14 is removed, they are turned over, and are placed on the guide rod then.Therefore, the rotation direction of active wheel is reversible between each continuous experiment table 14, with the error of avoiding causing owing to the variation between each experiment table.Each guide rod of exemplar wheel 24 wear and tear on six different experiment tablees 14, when their this exemplars that overturns when an experiment table moves on to next experiment table are taken turns.Therefore, be worn on the husky wheel 20 of each exemplar wheel 24 in the husky wheel of a row of equipment 10.After six rotations, this active wheel is placed on the guide rod with the order before identical with initial rotation between experiment table.
Therefore, each active wheel the first slip value (7%) wear and tear approximately altogether 90,000 the circle.All then exemplars are taken turns on 24 slave units 10 and are taken off and be cooled to room temperature.Husky wheel 20, is vacuumized the removal loose granule to housing 12, and changes rubber ring 54 with the cleaning of line brush by once more.Therefore, the weight of the diameter of each active wheel and all wheels (comprising active wheel and master body) is measured and record as stated above once more.But, to the average weight loss of all master bodies of every kind of compound or increase respectively from the loss in weight of the active wheel of every kind of compound of correspondence deduction or be increased in it, so that measure more accurately because the loss in weight that wearing and tearing cause.
Then change the 4th gear 94,, and make the temperature of housing 12 drop to about 46 ℃ so that make the slip value be about 13%.Each active wheel weares and teares six times by above-mentioned identical method on six different experiment tablees 14 again then.But in each wearing and tearing grade, each active wheel turns over about 2400 circles with 860RPM.Therefore, each active wheel reaches 14,000 circles at the sum of the second slip value (13%) rotation.Then, measure the diameter of each active wheel as stated above, the weight of active wheel and master body also keeps a record.
At the loss in weight of each slip value (S) and the volumetric wear of the diameter data unit of converting to stroke, or rate of wear (W).Then, this rate of wear (W) can be adapted to equation (2), and these data can be used to draw a diagram and analyze.Rate of wear (W) also can be put into equation (3) computing, decision experiment abrasion index (LI).This experiment abrasion index (LI) can be used as a function of slip value (S) and draws a diagram, so that the wearing quality of analysis and comparative experiments compound.
In other method of the present invention, equipment 10 is used to measure the irregular wearing quality of tire tread compound.In an example, three kinds of different tire tread compounds are by the wearing and tearing in equipment 10 simultaneously of above-mentioned identical method.But these three kinds of compounds wear and tear continuously with three kinds of different slip values, are different from two above-mentioned slip values.
These three slip values are 7%, 13% and 21%.Therefore, these tire tread compounds are worn under low relatively, medium and high abrasion hardness grade respectively.But, turn over about 2,000 circles with 860 RPM together with corresponding sand wheel at the 3rd each active wheel of slip value (21%).Therefore, each active wheel is about 14,400 circles with the sum of the 3rd slip value (21%) rotation.
These three kinds of different tire tread compounds contain a kind of different carbon black for every kind, and are labeled as CB respectively
1, CB
2And CB
3Result based on the data computation of collecting in these three kinds of exemplar wheels 24 of wearing and tearing is summarised in the following table:
Rate of wear (W) experiment wearing and tearing rate of wear (W) experiment wearing and tearing
(CC/cm) (CC/cm) index (LI) of index (LI)
7% slip, 7% slip, 13% slip, 13% slip
CB
14.56E-8 100 2.42E-7 100
CB
24.94E-8 92 2.45E-7 99
CB
34.61E-8 98 2.48E-7 98
Rate of wear (W) experiment wearing and tearing
(cc/cm) index (LI)
21% slip, 21% slip
CB
18.45E-7 100
CB
26.43E-7 131
CB
37.10E-7 119
CB
1Compound is a reference compound, and be worn in case with other experimental compound relatively.Therefore, CB
1The experiment abrasion index (LI) of compound is 100.
As shown in Table, for three kinds of all compounds, rate of wear (W) increases with the increase of slip value.But important data characteristic is CB
2One of compound exhibits compares CB
1Or CB
3Experiment abrasion index (LI) the higher numerical value of compound when the highest abrasion hardness (21% slip).On the other hand, the slip value 7% and 13%, CB
2The experiment abrasion index (LI) and the CB of compound
1And CB
3The experiment abrasion index of compound is more approaching.Therefore, experimental result shows, CB
2Compound presents under high abrasion hardness condition and compares CB
1Or CB
3The compound better wear resistance.In addition, CB
2Compound may present and compare CB
1Or CB
3The better irregular wearing quality of compound.
An advantage of equipment of the present invention and method is that the present invention can be used for solving the irregular wear problem that existing tire exists. For example, if irregular wear problem appears in the tire with existing tread design, equipment of the present invention and method can be used for seeking other tire tread compound, or the carbon black of other pattern is used for this tire tread compound, in order to when the high rigidity wear level, show better wearability.
On the other hand, do not have be determined at accurately high wearability ability during with low abrasion hardness grade some known devices may point out to solve aspect the tire tread compound of irregular wear problem be do not have helpful. In fact, in above-mentioned example, known equipment may be pointed out CB2Compound, CB1Compound and CB3Compound roughly shows identical wearability, in fact, and CB2The wearability of compound is in fact better when the higher wear hardness level.
Claims (17)
1, a kind of wearing and tearing contain the equipment of carbon black compound, and it comprises:
A plurality of rotatably supported wearing terrains (20);
A plurality of rotatably supported experimental parts (24);
Each experimental part comprises that contains a carbon black compound, and the wearing terrain (20) that each experimental part (24) can be corresponding with engages, and this contains the compound of carbon black to wear and tear;
Be used to control first device (36,40,44) of the surface state at interface between each experimental part (24) and the corresponding wearing terrain (20);
With experimental part (24) and wearing terrain (20) coupling, rotation drives second device (77,16,28,70,22,72) of experimental part and wearing terrain;
With wearing terrain (20) and experimental part (24) coupling, the relative velocity of control wearing terrain (20) and experimental part (24) is so that control is by the 3rd device (16) of the degree of wearing terrain wear test parts.
2, equipment as claimed in claim 1, it is characterized in that: first device comprises a plurality of dust parts (40), each dust parts can be corresponding with one experimental part (24) be connected, each dust parts is applied to dust on the corresponding experimental part, and is applied to again on the interface between experimental part and the corresponding wearing terrain.
3, equipment as claimed in claim 2 is characterized in that: each dust parts comprises:
The transfer wheel (40) that can connect with corresponding experimental part (24),
The chalk spare (44) that can be connected with this transfer wheel, this chalk spare is applied to whiting on the transfer wheel (40), and being applied to again on the corresponding experimental part (24), so that dusting on the interface between the wearing terrain (20) of experimental part (24) and correspondence.
4, equipment as claimed in claim 2 is characterized in that: it comprises that also control chalk spare leans against the power on the transfer wheel (40), so that control is applied to the 4th device (56) of the whiting amount on the transfer wheel.
5, equipment as claimed in claim 4 is characterized in that: the 4th device comprises first pouring weight (56) with the transfer wheel coupling, and this first pouring weight is selected to lean against power on the chalk spare to set transfer wheel.
6, equipment as claimed in claim 3 is characterized in that: it comprises that also each experimental part of control (24) leans against the power of corresponding wearing terrain (20), with five device (29) of control by the degree of corresponding wearing terrain wear test parts.
7, equipment as claimed in claim 6, it is characterized in that: the 5th device comprises a plurality of second pouring weights (29), each second pouring weight and corresponding experimental part (24) coupling, each second pouring weight is selected to lean against power on the corresponding wearing terrain to set experimental part.
8, equipment as claimed in claim 1 is characterized in that: second device comprises a motor (77), and the 3rd device comprises a geared parts (16);
Second device also comprises:
With motor (77), experimental part (24) and geared parts (16) coupling one first (28,70), with second (22 with wearing terrain (20) and geared parts (16) coupling, 72), this gear member is selected, so that control the speed of first relative second speed, and control experimental part thus respectively with respect to the speed of wearing terrain speed.
9, equipment as claimed in claim 1, it is characterized in that: it comprises:
A plurality of experiment tablees (14), wherein each described experiment table comprises a husky wheel (20), an exemplar wheel (24) can be taken turns the dust transfer wheel (40) and a chalk spare (44) that can be connected with dust transfer wheel (40) that (24) are connected with exemplar for one; With a transmission component (16) that comprises a gear assembly (78,88,90,92,94,98) with experiment table (14) coupling, so that the relative velocity of husky wheel of control (20) and exemplar wheel (24), and control the degree that exemplar is taken turns wearing and tearing thus.
10, a kind of wearing and tearing contain the method for carbon black compound, and it comprises the following steps:
Each of a plurality of exemplars is weighed, and wherein each exemplar outside surface is to be made by the compound that contains carbon black; With with the method that the rotation of corresponding wearing terrain engages each exemplar that weares and teares this contains the compound of carbon black so that wear and tear, wherein exemplar is determined one first slip value with respect to the speed of wearing terrain speed;
Each exemplar that wearing and tearing are rotatably connected with first other wearing terrain of slip value and at least one;
Measurement contains the carbon black compound in the first slip value from each exemplar loss;
Each exemplar that wearing and tearing connect with corresponding with the one rotatably wearing terrain of one second slip value;
Each exemplar that wearing and tearing are connected with at least one other wearing terrain rotatably with one second slip value; With
Measurement contains the carbon black compound in the second slip value from each exemplar loss; This slip value by each exemplar speed and the difference between the speed of the wearing terrain of its correspondence divided by the speed decision of this exemplar.
11, equipment as claimed in claim 10 is characterized in that: the first slip value is in 5% to 9% scope, and the number of turns that each exemplar rotates with each wearing terrain with the first slip value is within 10,000 to 20,000 scopes,
The second slip value is in 9% to 17% scope;
The number of turns that each exemplar rotates with each wearing terrain with the second slip value is within 1000 to 5000 scopes.
12, equipment as claimed in claim 10, it is characterized in that: it also comprises the following steps:
Connect each exemplar of wearing and tearing rotatably with one the 3rd slip value and corresponding wearing terrain;
Be connected each exemplar of wearing and tearing rotatably with other wearing terrain of slip value and at least one; With
Measurement contains the carbon black compound in the 3rd slip value from each exemplar loss.
13, equipment as claimed in claim 12 is characterized in that: the 3rd slip value is in 17% to 30% scope; And the number of turns that each exemplar rotates with the 3rd slip value is within 500 to 4500 scopes.
14, as arbitrary described method in the claim 10 to 13, it is characterized in that it also comprises the following steps:
The environment temperature of exemplar and wearing terrain is controlled within 40 ℃ of-55 ℃ of scopes, so that control is by the degree of wearing terrain wearing and tearing exemplar.
15, a kind of wearing and tearing tire tread compound, so that measure the method for the irregular wear characteristic of this compound, it comprises the following steps:
A plurality of experimental parts are weighed, and wherein each experimental part outside surface is to be made by a tire tread compound to be worn and torn;
Rotate the outside surface of each experimental part that is connected with a wearing terrain, so that wear and tear this tire tread compound, the relative velocity of this experimental part and this wearing terrain is determined one first slip value;
Each experimental part is weighed, to measure loss at the tire tread compound of the first slip value;
Rotate the outside surface of each experimental part that is connected with a wearing terrain, this tire tread compound so that wear and tear, the relative velocity of experimental part and wearing terrain is determined one second slip value, and this second slip value produces the higher abrasion hardness grade of the ratio first slip value
Each experimental part is weighed, to measure loss at the tire tread compound of the second slip value;
Rotate the outside surface of each experimental part that is connected with a wearing terrain, this tire tread compound so that wear and tear, the relative velocity of this experimental part and wearing terrain is determined one the 3rd slip value, and the 3rd slip value produces the higher abrasion hardness grade of the ratio second slip value;
Each experimental part is weighed, to measure loss at the tire tread compound of the 3rd slip value, the irregular wear characteristic of representing this tire tread compound thus in the loss of the tire tread compound of different abrasion hardness grades, each slip value is based on the speed of the difference between the speed of the speed of experimental part and wearing terrain divided by this experimental part.
16, equipment as claimed in claim 15 is characterized in that: the first slip value is within 5% to 9% scope, and the number of turns that each experimental part rotates with each wearing terrain is within 10,000 to 20,000 scopes; The second slip value is within 9% to 17% scope; The 3rd slip value is within 17% to 30% scope; And the number of turns that each experimental part rotates with the second and the 3rd slip value with each corresponding wearing terrain is within 1,000 to 5,000 scope.
17, equipment as claimed in claim 16 is characterized in that: each experimental part engages with first, second and the 3rd slip value with a plurality of corresponding wearing terrains and rotates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90301438.9 | 1990-02-12 | ||
| EP90301438A EP0442171A1 (en) | 1990-01-29 | 1990-02-12 | Method and apparatus for abrading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054665A true CN1054665A (en) | 1991-09-18 |
Family
ID=8205288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91101026A Pending CN1054665A (en) | 1990-02-12 | 1991-02-12 | The method and apparatus of wearing and tearing usefulness |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JP3009752B2 (en) |
| KR (1) | KR910015847A (en) |
| CN (1) | CN1054665A (en) |
| BR (1) | BR9100563A (en) |
| CA (1) | CA2035414A1 (en) |
| CS (1) | CS32991A2 (en) |
| HU (1) | HUT60036A (en) |
| IE (1) | IE910441A1 (en) |
| IL (1) | IL97149A0 (en) |
| PT (1) | PT96720A (en) |
| ZA (1) | ZA91856B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062684A (en) * | 2009-11-17 | 2011-05-18 | 依维柯公司 | Method and device for the predictive estimate of the wear of the coupling joint between a cooling circuit fan and an engine system in a vehicle |
| CN102735559A (en) * | 2011-04-15 | 2012-10-17 | 青岛科技大学 | Novel rubber high temperature abrasion tester |
| CN102741042A (en) * | 2010-02-02 | 2012-10-17 | 株式会社普利司通 | Buff device for retreaded tire |
| CN103403518A (en) * | 2011-01-26 | 2013-11-20 | 普利司通美国轮胎运营有限责任公司 | Engineered surfaces for laboratory tread wear testing of tires |
| CN104316004A (en) * | 2014-11-13 | 2015-01-28 | 大连交通大学 | Wheel set tread image data dynamic acquisition system based on edge diffracted ray light source |
| CN106092795A (en) * | 2016-07-14 | 2016-11-09 | 赛轮金宇集团股份有限公司 | Multistation rubber abrasion testing machine |
| CN109313111A (en) * | 2016-07-12 | 2019-02-05 | 横滨橡胶株式会社 | The abrasion test device of rubber |
| CN117862994A (en) * | 2024-03-12 | 2024-04-12 | 昆山弗思特工业设计有限公司 | Grinding device for motorcycle part machining |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2954304B1 (en) * | 2013-02-05 | 2018-03-21 | Bridgestone Corporation | Method of measuring wear rate in rubber tires |
| JP6844148B2 (en) * | 2016-08-23 | 2021-03-17 | 横浜ゴム株式会社 | Abrasion tester |
| CN108145564A (en) * | 2017-12-27 | 2018-06-12 | 重庆精高金属结构制造有限公司 | A kind of dedusting metal grinding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354411Y2 (en) * | 1975-09-23 | 1978-12-27 | ||
| JPS5293186A (en) * | 1976-01-30 | 1977-08-05 | Hitachi Ltd | Illumination device utilizing partition receiver |
| JPS5780525U (en) * | 1980-11-01 | 1982-05-18 | ||
| JPS58168606U (en) * | 1982-05-04 | 1983-11-10 | 共栄工業株式会社 | partition panel |
| JPH0624492Y2 (en) * | 1984-01-30 | 1994-06-29 | 株式会社イトーキクレビオ | Partition panel Kasagi mounting structure |
| JPH0340040Y2 (en) * | 1986-03-20 | 1991-08-22 | ||
| JPH03140539A (en) * | 1989-10-26 | 1991-06-14 | Herman Miller Inc | Work space control system |
| JPH03117015U (en) * | 1990-03-14 | 1991-12-04 |
-
1991
- 1991-01-31 CA CA002035414A patent/CA2035414A1/en not_active Abandoned
- 1991-02-05 ZA ZA91856A patent/ZA91856B/en unknown
- 1991-02-05 IL IL97149A patent/IL97149A0/en unknown
- 1991-02-08 PT PT96720A patent/PT96720A/en not_active Application Discontinuation
- 1991-02-08 BR BR919100563A patent/BR9100563A/en not_active Application Discontinuation
- 1991-02-11 HU HU91442A patent/HUT60036A/en unknown
- 1991-02-11 CS CS91329A patent/CS32991A2/en unknown
- 1991-02-11 IE IE044191A patent/IE910441A1/en unknown
- 1991-02-12 JP JP3104034A patent/JP3009752B2/en not_active Expired - Fee Related
- 1991-02-12 KR KR1019910002361A patent/KR910015847A/en not_active Application Discontinuation
- 1991-02-12 CN CN91101026A patent/CN1054665A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062684B (en) * | 2009-11-17 | 2015-07-29 | 依维柯公司 | For estimating the method and apparatus of the wearing and tearing of the shaft Coupling in vehicle between cooling circuit fan and engine system |
| CN102062684A (en) * | 2009-11-17 | 2011-05-18 | 依维柯公司 | Method and device for the predictive estimate of the wear of the coupling joint between a cooling circuit fan and an engine system in a vehicle |
| CN102741042B (en) * | 2010-02-02 | 2015-01-14 | 株式会社普利司通 | Buff device for retreaded tire |
| CN102741042A (en) * | 2010-02-02 | 2012-10-17 | 株式会社普利司通 | Buff device for retreaded tire |
| CN103403518A (en) * | 2011-01-26 | 2013-11-20 | 普利司通美国轮胎运营有限责任公司 | Engineered surfaces for laboratory tread wear testing of tires |
| CN103403518B (en) * | 2011-01-26 | 2016-03-16 | 普利司通美国轮胎运营有限责任公司 | For the engineering design surface of the laboratory treadwear test of tire |
| CN102735559A (en) * | 2011-04-15 | 2012-10-17 | 青岛科技大学 | Novel rubber high temperature abrasion tester |
| CN104316004A (en) * | 2014-11-13 | 2015-01-28 | 大连交通大学 | Wheel set tread image data dynamic acquisition system based on edge diffracted ray light source |
| CN104316004B (en) * | 2014-11-13 | 2017-05-10 | 大连交通大学 | Wheel set tread image data dynamic acquisition system based on edge diffracted ray light source |
| CN109313111A (en) * | 2016-07-12 | 2019-02-05 | 横滨橡胶株式会社 | The abrasion test device of rubber |
| CN109313111B (en) * | 2016-07-12 | 2022-03-08 | 横滨橡胶株式会社 | Abrasion test device for rubber |
| CN106092795A (en) * | 2016-07-14 | 2016-11-09 | 赛轮金宇集团股份有限公司 | Multistation rubber abrasion testing machine |
| CN117862994A (en) * | 2024-03-12 | 2024-04-12 | 昆山弗思特工业设计有限公司 | Grinding device for motorcycle part machining |
| CN117862994B (en) * | 2024-03-12 | 2024-05-10 | 昆山弗思特工业设计有限公司 | Grinding device for motorcycle part machining |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3009752B2 (en) | 2000-02-14 |
| JPH0587720A (en) | 1993-04-06 |
| ZA91856B (en) | 1991-11-27 |
| BR9100563A (en) | 1991-10-29 |
| CS32991A2 (en) | 1991-09-15 |
| PT96720A (en) | 1992-12-31 |
| KR910015847A (en) | 1991-09-30 |
| HUT60036A (en) | 1992-07-28 |
| IL97149A0 (en) | 1992-05-25 |
| CA2035414A1 (en) | 1991-08-13 |
| HU910442D0 (en) | 1991-08-28 |
| IE910441A1 (en) | 1991-08-14 |
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| WD01 | Invention patent application deemed withdrawn after publication |